/* roulang page: index */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        a:hover, a:focus {
            color: var(--c-copper);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

        .site-container--narrow {
            max-width: 860px;
        }

        .row {
            max-width: 100%;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }

        .logo-text a:hover {
            color: var(--c-copper);
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }

        .brand-action-link:hover {
            color: var(--c-copper);
        }

        .brand-action-link i {
            font-size: 15px;
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }

        .channel-nav li + li {
            margin-left: 0;
        }

        .channel-nav li + li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }

        .channel-nav a {
            display: block;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }

        .channel-nav a:hover {
            color: var(--c-ink);
        }

        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }

        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 22px;
            right: 22px;
            height: 2px;
            background: var(--c-copper);
            animation: navUnderlineIn 0.3s ease-out;
        }

        @keyframes navUnderlineIn {
            from { transform: scaleX(0); }
            to { transform: scaleX(1); }
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            padding: 10px;
            cursor: pointer;
            color: var(--c-ink);
            font-size: 22px;
            line-height: 1;
            border-radius: 4px;
        }

        .hamburger-toggle:hover {
            color: var(--c-copper);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            background-color: var(--c-ink);
            color: var(--c-warmwhite);
            padding: 72px 0 64px;
            background-image: linear-gradient(rgba(26, 26, 26, 0.82), rgba(26, 26, 26, 0.92)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 540px;
            display: flex;
            align-items: center;
        }

        .hero-section .site-container {
            width: 100%;
        }

        .hero-inner {
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border: 1px solid var(--c-copper);
            border-radius: 30px;
            font-size: 13px;
            letter-spacing: 2px;
            color: var(--c-copper);
            margin-bottom: 28px;
            font-weight: 500;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            color: #FFFFFF;
            margin-bottom: 22px;
            text-wrap: balance;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            max-width: 720px;
            margin: 0 auto 36px;
            text-wrap: pretty;
        }

        .hero-search-wrap {
            max-width: 620px;
            margin: 0 auto 30px;
            position: relative;
        }

        .hero-search-input {
            width: 100%;
            padding: 16px 56px 16px 24px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: border-color var(--transition-base), background var(--transition-base);
            -webkit-appearance: none;
            appearance: none;
        }

        .hero-search-input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .hero-search-input:focus {
            outline: none;
            border-color: var(--c-copper);
            background: rgba(255, 255, 255, 0.16);
        }

        .hero-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--c-copper);
            border: none;
            border-radius: 50%;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-ink);
            font-size: 17px;
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .hero-search-btn:hover {
            background: #D4A86A;
            transform: translateY(-50%) scale(1.05);
        }

        .hero-quick-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-quick-tag {
            display: inline-block;
            padding: 8px 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
        }

        .hero-quick-tag:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--c-copper);
            color: #FFFFFF;
        }

        .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.3;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 1px;
        }

        /* ========== Section 通用 ========== */
        .site-section {
            padding: var(--section-gap-desktop) 0;
        }

        .site-section--warm {
            background-color: #F2EFEA;
        }

        .site-section--dark {
            background-color: var(--c-stone);
            color: var(--c-warmwhite);
        }

        .site-section--no-top {
            padding-top: 0;
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-header--center {
            text-align: center;
        }

        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2.5px;
            color: var(--c-copper);
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            margin-bottom: 14px;
        }

        .site-section--dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 16px;
            color: var(--c-text-secondary);
            line-height: 1.85;
            max-width: 680px;
            margin: 0 auto;
        }

        .site-section--dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-header--left .section-desc {
            margin-left: 0;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-block;
            padding: 13px 32px;
            border-radius: var(--radius-card);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.8px;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all var(--transition-slow);
            text-align: center;
            line-height: 1.5;
        }

        .btn--primary {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border-color: var(--c-ink);
        }

        .btn--primary:hover {
            background: var(--c-copper);
            border-color: var(--c-copper);
            color: var(--c-ink);
        }

        .btn--secondary {
            background: transparent;
            color: var(--c-ink);
            border-color: var(--c-copper);
        }

        .btn--secondary:hover {
            background: var(--c-copper);
            border-color: var(--c-copper);
            color: var(--c-ink);
        }

        .btn--ghost {
            background: transparent;
            color: var(--c-warmwhite);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn--ghost:hover {
            background: var(--c-warmwhite);
            border-color: var(--c-warmwhite);
            color: var(--c-ink);
        }

        .btn--sm {
            padding: 8px 20px;
            font-size: 13px;
            border-radius: 5px;
        }

        /* ========== 卖点三连 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 36px;
            margin-top: 24px;
        }

        .feature-item {
            padding: 28px 24px;
            border-left: 3px solid var(--c-copper);
            background: #FFFFFF;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            transition: box-shadow var(--transition-slow), transform var(--transition-slow);
            box-shadow: var(--shadow-default);
        }

        .feature-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #F7F2EA;
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .feature-item h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--c-ink);
            margin-bottom: 10px;
        }

        .feature-item p {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.8;
        }

        /* ========== 场景演示 ========== */
        .scene-block {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 20px 0;
        }

        .scene-block + .scene-block {
            margin-top: 48px;
            padding-top: 48px;
            border-top: 1px solid var(--c-border);
        }

        .scene-block--reverse {
            flex-direction: row-reverse;
        }

        .scene-image {
            flex: 0 0 42%;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            position: relative;
        }

        .scene-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .scene-block:hover .scene-image img {
            transform: scale(1.02);
        }

        .scene-text {
            flex: 1;
        }

        .scene-text h3 {
            font-size: 23px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--c-ink);
            margin-bottom: 14px;
        }

        .scene-text p {
            font-size: 16px;
            color: var(--c-text-secondary);
            line-height: 1.9;
            margin-bottom: 10px;
        }

        .scene-tag {
            display: inline-block;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 30px;
            background: #F7F2EA;
            color: var(--c-copper);
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        /* ========== 优势数据（深色条带） ========== */
        .stats-band {
            background: var(--c-stone);
            color: var(--c-warmwhite);
            padding: 52px 0;
        }

        .stats-band-inner {
            display: flex;
            justify-content: space-between;
            gap: 0;
        }

        .stat-cell {
            flex: 1;
            text-align: center;
            padding: 0 24px;
            position: relative;
        }

        .stat-cell + .stat-cell {
            border-left: 1px solid rgba(255, 255, 255, 0.15);
        }

        .stat-cell-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.25;
            letter-spacing: -0.5px;
        }

        .stat-cell-unit {
            font-size: 16px;
            color: var(--c-copper);
            font-weight: 600;
            margin-left: 4px;
        }

        .stat-cell-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            margin-top: 6px;
        }

        /* ========== 社会认同 ========== */
        .social-proof-row {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .social-proof-item {
            flex: 1;
            min-width: 200px;
            padding: 20px 24px;
            background: #FFFFFF;
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            text-align: center;
            transition: box-shadow var(--transition-slow);
        }

        .social-proof-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .social-proof-item .number {
            font-size: 30px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.3;
        }

        .social-proof-item .label {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-top: 4px;
        }

        .social-proof-item .stars {
            color: var(--c-copper);
            font-size: 16px;
            margin-top: 8px;
            letter-spacing: 2px;
        }

        /* ========== 资讯 ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }

        .news-list {
            list-style: none;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--c-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .news-item:hover {
            border-left: 3px solid var(--c-copper);
            padding-left: 16px;
        }

        .news-date-block {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            background: #F7F2EA;
            border-radius: 6px;
            padding: 10px 6px;
            align-self: flex-start;
        }

        .news-date-day {
            font-size: 22px;
            font-weight: 800;
            color: var(--c-ink);
            line-height: 1.2;
        }

        .news-date-month {
            font-size: 12px;
            color: var(--c-copper);
            font-weight: 600;
            letter-spacing: 1px;
        }

        .news-body {
            flex: 1;
        }

        .news-body h4 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--c-ink);
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }

        .news-item:hover .news-body h4 {
            color: var(--c-copper);
        }

        .news-body .news-summary {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            margin-bottom: 8px;
        }

        .news-read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-sidebar {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 24px 22px;
            border: 1px solid var(--c-border);
            align-self: start;
            position: sticky;
            top: 140px;
        }

        .news-sidebar h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hot-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
        }

        .hot-tag-list a {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--c-border);
            border-radius: 30px;
            font-size: 12px;
            color: var(--c-text-secondary);
            transition: all var(--transition-fast);
        }

        .hot-tag-list a:hover {
            border-color: var(--c-copper);
            color: var(--c-copper);
            background: #FBF8F4;
        }

        /* ========== 热门专题 ========== */
        .topic-strip {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .topic-pill {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 30px;
            background: #FFFFFF;
            border: 1px solid var(--c-border);
            font-size: 15px;
            font-weight: 500;
            color: var(--c-ink);
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            cursor: pointer;
        }

        .topic-pill:hover {
            border-color: var(--c-copper);
            color: var(--c-copper);
            background: #FBF8F4;
            transform: translateY(-2px);
        }

        .topic-pill--highlight {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border-color: var(--c-ink);
        }

        .topic-pill--highlight:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
        }

        /* ========== 内容预告 ========== */
        .timeline-preview {
            list-style: none;
            position: relative;
            padding-left: 28px;
        }

        .timeline-preview::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--c-border);
        }

        .timeline-preview li {
            position: relative;
            padding: 14px 0 14px 20px;
            border-bottom: 1px solid #F0EDE8;
        }

        .timeline-preview li::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 22px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--c-copper);
            border: 2px solid #FFFFFF;
            box-shadow: 0 0 0 2px var(--c-copper);
        }

        .timeline-preview .tl-date {
            font-size: 13px;
            color: var(--c-copper);
            font-weight: 600;
            letter-spacing: 1px;
        }

        .timeline-preview .tl-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--c-ink);
            margin-top: 2px;
        }

        .timeline-preview .tl-desc {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-top: 4px;
        }

        /* ========== 品牌介绍 & 深度内容 ========== */
        .brand-intro-text {
            font-size: 16px;
            line-height: 2;
            color: var(--c-text-primary);
            text-align: justify;
            max-width: 860px;
            margin: 0 auto;
        }

        .deep-content {
            max-width: 860px;
            margin: 0 auto;
        }

        .deep-content h3 {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--c-ink);
            margin: 24px 0 12px;
        }

        .deep-content p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--c-text-primary);
            margin-bottom: 18px;
            text-align: justify;
        }

        .deep-content blockquote {
            border-left: 4px solid var(--c-copper);
            padding: 12px 20px;
            margin: 20px 0;
            background: #FBF8F4;
            font-style: italic;
            color: var(--c-text-secondary);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            border-top: 1px solid var(--c-border);
        }

        .faq-item {
            border-bottom: 1px solid var(--c-border);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--c-ink);
            text-align: left;
            transition: color var(--transition-fast);
            gap: 16px;
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--c-copper);
        }

        .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-copper);
            font-size: 14px;
            transition: transform var(--transition-fast);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 0;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.85;
            max-width: 760px;
        }

        /* ========== 联系/CTA ========== */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: start;
        }

        .contact-form-wrap {
            background: #FFFFFF;
            padding: 36px 32px;
            border-radius: var(--radius-large);
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-default);
        }

        .contact-form-wrap h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--c-ink);
            margin-bottom: 24px;
        }

        .form-field {
            margin-bottom: 20px;
        }

        .form-field label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-field input,
        .form-field textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            font-size: 15px;
            color: var(--c-ink);
            background: var(--c-warmwhite);
            transition: border-color var(--transition-fast), background var(--transition-fast);
            -webkit-appearance: none;
            appearance: none;
        }

        .form-field input:focus,
        .form-field textarea:focus {
            outline: none;
            border-color: var(--c-copper);
            background: #FFFFFF;
        }

        .form-field textarea {
            min-height: 120px;
            resize: vertical;
        }

        .form-error {
            color: var(--c-error);
            font-size: 12px;
            margin-top: 4px;
            display: none;
        }

        .form-field.has-error input,
        .form-field.has-error textarea {
            border-color: var(--c-error);
        }

        .form-field.has-error .form-error {
            display: block;
        }

        .contact-info-list {
            list-style: none;
            margin-top: 16px;
        }

        .contact-info-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.7;
        }

        .contact-info-list li i {
            color: var(--c-copper);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 4px;
            width: 20px;
            text-align: center;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.8px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--c-copper);
        }

        .footer-subscribe p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-subscribe-input {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe-input input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 14px;
            -webkit-appearance: none;
            appearance: none;
        }

        .footer-subscribe-input input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-subscribe-input input:focus {
            outline: none;
            border-color: var(--c-copper);
        }

        .footer-subscribe-btn {
            padding: 10px 18px;
            background: var(--c-copper);
            color: var(--c-ink);
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition-fast);
            white-space: nowrap;
        }

        .footer-subscribe-btn:hover {
            background: #D4A86A;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
        }

        .footer-bottom-links a:hover {
            color: var(--c-copper);
        }

        /* ========== 移动端导航抽屉 ========== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 300px;
            max-width: 85vw;
            background: #FFFFFF;
            z-index: 2000;
            box-shadow: -8px 0 32px rgba(0, 0, 0, 0.1);
            padding: 20px;
            transform: translateX(100%);
            transition: transform 0.3s ease-out;
            overflow-y: auto;
            -webkit-overflow-scrolling: touch;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .mobile-drawer-close {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 6px;
        }

        .mobile-drawer-nav {
            list-style: none;
        }

        .mobile-drawer-nav li {
            border-bottom: 1px solid var(--c-border);
        }

        .mobile-drawer-nav a {
            display: block;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--c-ink);
        }

        .mobile-drawer-nav a.active {
            color: var(--c-copper);
            font-weight: 700;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 1500;
            opacity: 0;
            transition: opacity 0.3s ease-out;
        }

        .drawer-overlay.show {
            opacity: 1;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .hero-title {
                font-size: 42px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-sidebar {
                position: static;
            }
            .contact-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stats-band-inner {
                flex-wrap: wrap;
                gap: 0;
            }
            .stat-cell {
                flex: 0 0 50%;
                padding: 16px 12px;
            }
            .stat-cell + .stat-cell {
                border-left: none;
            }
            .stat-cell:nth-child(3), .stat-cell:nth-child(4) {
                border-top: 1px solid rgba(255, 255, 255, 0.15);
            }
            .stat-cell:nth-child(3) {
                border-left: none;
            }
            .channel-nav a {
                padding: 12px 15px;
                font-size: 14px;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .scene-block {
                gap: 28px;
            }
            .scene-image {
                flex: 0 0 38%;
            }
            .scene-image img {
                height: 220px;
            }
        }

        @media (max-width: 640px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-section {
                padding: var(--section-gap-mobile) 0;
            }
            .hero-section {
                min-height: auto;
                padding: 48px 0 44px;
            }
            .hero-title {
                font-size: 32px;
                letter-spacing: -0.3px;
            }
            .hero-subtitle {
                font-size: 15px;
                margin-bottom: 24px;
            }
            .hero-search-wrap {
                max-width: 100%;
            }
            .hero-search-input {
                padding: 13px 48px 13px 18px;
                font-size: 14px;
            }
            .hero-search-btn {
                width: 38px;
                height: 38px;
                font-size: 14px;
                right: 4px;
            }
            .hero-stats-row {
                gap: 24px;
            }
            .hero-stat-number {
                font-size: 22px;
            }
            .section-title {
                font-size: 26px;
                letter-spacing: -0.2px;
            }
            .section-desc {
                font-size: 15px;
            }
            .brand-row {
                padding: 10px 0;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .brand-actions {
                gap: 12px;
            }
            .brand-action-link {
                font-size: 12px;
            }
            .channel-row {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .mobile-drawer {
                display: block;
            }
            .drawer-overlay {
                display: block;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-item {
                padding: 20px 18px;
            }
            .scene-block {
                flex-direction: column !important;
                gap: 20px;
                padding: 10px 0;
            }
            .scene-block + .scene-block {
                margin-top: 32px;
                padding-top: 32px;
            }
            .scene-image {
                flex: 0 0 auto;
                width: 100%;
            }
            .scene-image img {
                height: 200px;
            }
            .stats-band {
                padding: 36px 0;
            }
            .stat-cell {
                flex: 0 0 50%;
                padding: 12px 8px;
            }
            .stat-cell-number {
                font-size: 30px;
            }
            .stat-cell-label {
                font-size: 11px;
                letter-spacing: 0.5px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 0;
            }
            .news-date-block {
                width: auto;
                display: inline-flex;
                gap: 6px;
                padding: 6px 12px;
                align-items: baseline;
            }
            .news-date-day {
                font-size: 16px;
            }
            .news-date-month {
                font-size: 11px;
            }
            .news-body h4 {
                font-size: 16px;
            }
            .topic-strip {
                gap: 10px;
            }
            .topic-pill {
                padding: 9px 18px;
                font-size: 13px;
            }
            .timeline-preview {
                padding-left: 18px;
            }
            .timeline-preview::before {
                left: 5px;
            }
            .timeline-preview li {
                padding: 12px 0 12px 14px;
            }
            .timeline-preview li::before {
                left: -15px;
                top: 18px;
                width: 8px;
                height: 8px;
            }
            .brand-intro-text {
                font-size: 15px;
                line-height: 1.9;
            }
            .deep-content h3 {
                font-size: 19px;
            }
            .deep-content p {
                font-size: 15px;
                line-height: 1.85;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 0;
            }
            .faq-answer p {
                font-size: 14px;
            }
            .contact-form-wrap {
                padding: 24px 18px;
            }
            .contact-form-wrap h3 {
                font-size: 19px;
            }
            .contact-info-list li {
                font-size: 14px;
                padding: 12px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .social-proof-row {
                gap: 16px;
            }
            .social-proof-item {
                min-width: 140px;
                padding: 16px 14px;
            }
            .social-proof-item .number {
                font-size: 24px;
            }
        }

        /* ========== 动画 ========== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.5s ease-out forwards;
        }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .count-up {
            display: inline-block;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category2 */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        a:hover,
        a:focus {
            color: var(--c-copper);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

        .site-container--narrow {
            max-width: 860px;
        }

        .row {
            max-width: 100%;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }

        .logo-text a:hover {
            color: var(--c-copper);
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }

        .brand-action-link:hover {
            color: var(--c-copper);
        }

        .brand-action-link i {
            font-size: 15px;
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--c-ink);
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
            transition: color var(--transition-fast);
        }

        .hamburger-toggle:hover {
            color: var(--c-copper);
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }

        .channel-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }

        .channel-nav a {
            display: block;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }

        .channel-nav a:hover {
            color: var(--c-ink);
        }

        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }

        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 22px;
            right: 22px;
            height: 2px;
            background: var(--c-copper);
            transition: left var(--transition-fast), right var(--transition-fast);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding: 28px 0 8px;
            font-size: 14px;
            color: var(--c-text-secondary);
        }

        .breadcrumb-wrap .breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb-list li+li::before {
            content: '/';
            color: var(--c-border);
            font-size: 13px;
            margin-right: 2px;
        }

        .breadcrumb-list a {
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-list a:hover {
            color: var(--c-copper);
        }

        .breadcrumb-list .breadcrumb-current {
            color: var(--c-text-primary);
            font-weight: 600;
        }

        /* ========== 专题封面 ========== */
        .topic-hero {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
            margin-bottom: 40px;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            background: var(--c-stone);
        }

        .topic-hero-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .topic-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26, 26, 26, 0.92) 0%, rgba(26, 26, 26, 0.45) 50%, rgba(26, 26, 26, 0.15) 100%);
            z-index: 1;
        }

        .topic-hero-content {
            position: relative;
            z-index: 2;
            padding: 48px 56px 40px;
            color: #F7F5F2;
            max-width: 820px;
        }

        .topic-hero-tag {
            display: inline-block;
            background: var(--c-copper);
            color: var(--c-ink);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .topic-hero-content h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            color: #F7F5F2;
            margin: 0 0 16px;
        }

        .topic-hero-summary {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(247, 245, 242, 0.85);
            margin: 0;
            max-width: 680px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-card);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: all var(--transition-slow);
            border: none;
            text-align: center;
            min-height: 48px;
            letter-spacing: 0.3px;
        }

        .btn--primary {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border: 1px solid var(--c-ink);
        }

        .btn--primary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
        }

        .btn--ghost {
            background: transparent;
            color: var(--c-warmwhite);
            border: 1px solid rgba(247, 245, 242, 0.55);
        }

        .btn--ghost:hover {
            background: var(--c-warmwhite);
            color: var(--c-ink);
            border-color: var(--c-warmwhite);
        }

        .btn--outline {
            background: transparent;
            color: var(--c-ink);
            border: 1px solid var(--c-copper);
        }

        .btn--outline:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
        }

        .btn--sm {
            padding: 8px 18px;
            min-height: 38px;
            font-size: 14px;
        }

        .btn--full-mobile {
            width: auto;
        }

        /* ========== 正文长文排版 ========== */
        .article-body {
            background: #FFFFFF;
            border-radius: var(--radius-large);
            padding: 48px 56px;
            box-shadow: var(--shadow-default);
            border: 1px solid var(--c-border);
            margin-bottom: 40px;
        }

        .article-body h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--c-ink);
            margin: 40px 0 16px;
            letter-spacing: -0.3px;
        }

        .article-body h2:first-child {
            margin-top: 0;
        }

        .article-body h3 {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--c-ink);
            margin: 32px 0 12px;
        }

        .article-body p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--c-text-primary);
            margin: 0 0 20px;
        }

        .article-body blockquote {
            margin: 32px 0;
            padding: 24px 28px;
            border-left: 3px solid var(--c-copper);
            background: #FAF8F5;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            font-size: 17px;
            line-height: 1.8;
            color: var(--c-text-secondary);
            font-style: normal;
        }

        .article-body blockquote p {
            margin: 0;
            color: var(--c-text-secondary);
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-body li {
            font-size: 17px;
            line-height: 1.9;
            color: var(--c-text-primary);
            margin-bottom: 8px;
        }

        .article-body .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--c-text-secondary);
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--c-border);
        }

        .article-body .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            margin-bottom: 60px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .related-card {
            background: #FFFFFF;
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-default);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .related-card-img {
            width: 100%;
            aspect-ratio: 3/2;
            object-fit: cover;
        }

        .related-card-body {
            padding: 20px 24px 24px;
        }

        .related-card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-copper);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .related-card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--c-ink);
            margin: 0 0 10px;
        }

        .related-card-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--c-text-secondary);
            margin: 0 0 16px;
        }

        .related-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }

        .related-card-link:hover {
            color: var(--c-copper);
        }

        /* ========== 页面标题块 ========== */
        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-ink);
            margin: 0 0 12px;
            letter-spacing: -0.3px;
        }

        .section-heading h2 .heading-accent {
            color: var(--c-copper);
        }

        .section-heading p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--c-text-secondary);
            margin: 0;
            max-width: 640px;
        }

        /* ========== FAQ ========== */
        .faq-wrapper {
            margin-bottom: 60px;
        }

        .custom-accordion {
            border-top: 1px solid var(--c-border);
        }

        .custom-accordion-item {
            border-bottom: 1px solid var(--c-border);
        }

        .custom-accordion-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 4px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 17px;
            font-weight: 600;
            color: var(--c-ink);
            transition: color var(--transition-fast);
            letter-spacing: 0.2px;
            line-height: 1.5;
        }

        .custom-accordion-trigger:hover {
            color: var(--c-copper);
        }

        .custom-accordion-trigger .accordion-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--c-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--c-copper);
            transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
        }

        .custom-accordion-item.is-open .custom-accordion-trigger .accordion-arrow {
            transform: rotate(180deg);
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
        }

        .custom-accordion-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

        .custom-accordion-panel-inner {
            padding: 0 4px 24px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--c-text-secondary);
        }

        .custom-accordion-panel-inner p {
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-band {
            background: var(--c-stone);
            border-radius: var(--radius-large);
            padding: 48px 56px;
            margin-bottom: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .cta-band-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-band-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: #F7F5F2;
            margin: 0 0 10px;
            letter-spacing: -0.2px;
        }

        .cta-band-text p {
            font-size: 15px;
            color: rgba(247, 245, 242, 0.75);
            margin: 0;
            line-height: 1.75;
        }

        .cta-band-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: #F7F5F2;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: #F7F5F2;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(247, 245, 242, 0.7);
            margin: 0;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #F7F5F2;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .footer-links a:hover {
            color: var(--c-copper);
        }

        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-contact li {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--c-copper);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .footer-sub-text {
            font-size: 13px;
            color: rgba(247, 245, 242, 0.65);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .footer-sub-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-sub-form input[type="email"] {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            background: rgba(247, 245, 242, 0.1);
            border: 1px solid rgba(247, 245, 242, 0.25);
            border-radius: var(--radius-card);
            color: #F7F5F2;
            font-size: 14px;
            transition: border-color var(--transition-fast);
        }

        .footer-sub-form input[type="email"]::placeholder {
            color: rgba(247, 245, 242, 0.5);
        }

        .footer-sub-form input[type="email"]:focus {
            outline: none;
            border-color: var(--c-copper);
        }

        .footer-bottom {
            border-top: 1px solid rgba(247, 245, 242, 0.15);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(247, 245, 242, 0.55);
        }

        .footer-bottom-left {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            font-size: 13px;
            color: rgba(247, 245, 242, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--c-copper);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-container {
                padding-left: 24px;
                padding-right: 24px;
            }

            .article-body {
                padding: 36px 32px;
            }

            .article-body h2 {
                font-size: 24px;
            }

            .topic-hero-content h1 {
                font-size: 32px;
            }

            .topic-hero-content {
                padding: 36px 32px 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .cta-band {
                padding: 36px 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .channel-nav a {
                padding: 12px 16px;
                font-size: 14px;
            }

            .channel-nav a.active::after {
                left: 16px;
                right: 16px;
            }

            .article-body {
                padding: 28px 20px;
                border-radius: 12px;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-body p,
            .article-body li {
                font-size: 16px;
            }

            .topic-hero {
                min-height: 320px;
                border-radius: 12px;
            }

            .topic-hero-content {
                padding: 28px 20px 24px;
            }

            .topic-hero-content h1 {
                font-size: 26px;
            }

            .cta-band {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }

            .cta-band-text h2 {
                font-size: 22px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .section-heading h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 640px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-row {
                padding: 10px 0;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .brand-action-link span:not(.sr-only) {
                display: none;
            }

            .brand-action-link {
                gap: 0;
            }

            .hamburger-toggle {
                display: block;
            }

            .channel-row {
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                display: block;
            }

            .channel-row.is-open {
                max-height: 400px;
                overflow-y: auto;
            }

            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
                overflow-x: visible;
            }

            .channel-nav li+li::before {
                display: none;
            }

            .channel-nav a {
                padding: 12px 4px;
                font-size: 15px;
                border-bottom: 1px solid var(--c-border);
            }

            .channel-nav a.active::after {
                display: none;
            }

            .channel-nav a.active {
                color: var(--c-copper);
                font-weight: 600;
            }

            .breadcrumb-wrap {
                padding: 16px 0 4px;
                font-size: 13px;
            }

            .article-body {
                padding: 22px 16px;
                border-radius: 10px;
            }

            .article-body h2 {
                font-size: 20px;
                margin-top: 28px;
            }

            .article-body blockquote {
                padding: 18px 16px;
                font-size: 15px;
            }

            .topic-hero {
                min-height: 260px;
                border-radius: 10px;
                margin-bottom: 24px;
            }

            .topic-hero-content {
                padding: 20px 16px 18px;
            }

            .topic-hero-content h1 {
                font-size: 22px;
                margin-bottom: 10px;
            }

            .topic-hero-summary {
                font-size: 14px;
                line-height: 1.7;
            }

            .topic-hero-tag {
                font-size: 12px;
                padding: 3px 10px;
                margin-bottom: 10px;
            }

            .btn--full-mobile {
                width: 100%;
            }

            .cta-band {
                padding: 24px 16px;
                border-radius: 12px;
                margin-bottom: 40px;
            }

            .cta-band-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-band-actions .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-bottom-left {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .section-heading h2 {
                font-size: 24px;
            }

            .custom-accordion-trigger {
                font-size: 15px;
                padding: 16px 2px;
            }
        }

        @media (max-width: 400px) {
            .topic-hero {
                min-height: 230px;
            }

            .topic-hero-content h1 {
                font-size: 19px;
            }

            .article-body h2 {
                font-size: 18px;
            }
        }

/* roulang page: category3 */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        a:hover, a:focus {
            color: var(--c-copper);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }
        .site-container--narrow {
            max-width: 860px;
        }
        .row {
            max-width: 100%;
        }
        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }
        .logo-text a:hover {
            color: var(--c-copper);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }
        .brand-action-link:hover {
            color: var(--c-copper);
        }
        .brand-action-link i {
            font-size: 15px;
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 4px 8px;
            transition: color var(--transition-fast);
        }
        .hamburger-toggle:hover {
            color: var(--c-copper);
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }
        .channel-nav li + li {
            margin-left: 0;
        }
        .channel-nav li + li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }
        .channel-nav a {
            display: block;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }
        .channel-nav a:hover {
            color: var(--c-ink);
        }
        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }
        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 22px;
            right: 22px;
            height: 2px;
            background: var(--c-copper);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 18px 0 0;
        }
        .breadcrumb-bar nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-bar nav ul li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-bar nav ul li + li::before {
            content: '/';
            color: var(--c-border);
            font-size: 13px;
        }
        .breadcrumb-bar nav ul a {
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-bar nav ul a:hover {
            color: var(--c-copper);
        }
        .breadcrumb-bar nav ul .current {
            color: var(--c-ink);
            font-weight: 600;
        }
        /* ========== Hero ========== */
        .ranking-hero {
            position: relative;
            padding: 80px 0 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
        }
        .ranking-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,26,26,0.72) 0%, rgba(26,26,26,0.88) 100%);
        }
        .ranking-hero .site-container {
            position: relative;
            z-index: 1;
            padding-bottom: 50px;
        }
        .ranking-hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            color: #fff;
            margin-bottom: 16px;
        }
        .ranking-hero-sub {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255,255,255,0.88);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 18px;
            background: rgba(26,26,26,0.72);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(184,145,90,0.4);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .countdown-label {
            font-size: 14px;
            color: rgba(255,255,255,0.8);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-copper);
        }
        .countdown-timer .cd-num {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }
        .countdown-timer .cd-unit {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-card);
            border: none;
            cursor: pointer;
            transition: background var(--transition-slow), color var(--transition-slow), border-color var(--transition-slow), transform var(--transition-fast), box-shadow var(--transition-base);
            letter-spacing: 0.4px;
            text-align: center;
        }
        .btn--primary {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border: 1px solid var(--c-ink);
        }
        .btn--primary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn--secondary {
            background: transparent;
            color: var(--c-ink);
            border: 1px solid var(--c-copper);
        }
        .btn--secondary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn--ghost {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.6);
        }
        .btn--ghost:hover {
            background: #fff;
            color: var(--c-ink);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn--sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        .btn--copper {
            background: var(--c-copper);
            color: var(--c-ink);
            border: 1px solid var(--c-copper);
        }
        .btn--copper:hover {
            background: var(--c-ink);
            color: #fff;
            border-color: var(--c-ink);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        /* ========== 通用Section ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section--tight {
            padding: 48px 0;
        }
        .section--dark {
            background: var(--c-stone);
            color: #fff;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-ink);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title--light {
            color: #fff;
        }
        .section-sub {
            font-size: 16px;
            color: var(--c-text-secondary);
            margin-bottom: 36px;
            max-width: 680px;
            line-height: 1.8;
        }
        .section-sub--light {
            color: rgba(255,255,255,0.75);
        }
        .section-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        /* ========== 统计条带 ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-bottom: 1px solid rgba(255,255,255,0.15);
        }
        .stat-item {
            padding: 36px 28px;
            text-align: left;
            border-right: 1px solid rgba(255,255,255,0.15);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.1;
            letter-spacing: -0.5px;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255,255,255,0.75);
            letter-spacing: 0.5px;
        }
        .stat-trend {
            font-size: 13px;
            font-weight: 600;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .stat-trend.up {
            color: #7CB342;
        }
        .stat-trend.down {
            color: #EF5350;
        }
        /* ========== 表格 ========== */
        .table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-default);
            background: #fff;
        }
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            font-size: 14px;
            min-width: 720px;
        }
        .ranking-table thead th {
            background: var(--c-ink);
            color: #fff;
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
            font-size: 13px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            border: none;
        }
        .ranking-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--c-border);
            color: var(--c-text-primary);
            vertical-align: middle;
        }
        .ranking-table tbody tr:nth-child(even) {
            background: rgba(247,245,242,0.6);
        }
        .ranking-table tbody tr:hover {
            background: rgba(184,145,90,0.08);
        }
        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }
        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 14px;
            background: var(--c-warmwhite);
            color: var(--c-ink);
            border: 1px solid var(--c-border);
        }
        .rank-badge--top1 {
            background: var(--c-copper);
            color: #fff;
            border-color: var(--c-copper);
        }
        .rank-badge--top2 {
            background: #8C8C8C;
            color: #fff;
            border-color: #8C8C8C;
        }
        .rank-badge--top3 {
            background: #A67C52;
            color: #fff;
            border-color: #A67C52;
        }
        .trend-up {
            color: var(--c-success);
            font-weight: 600;
        }
        .trend-down {
            color: var(--c-error);
            font-weight: 600;
        }
        .trend-flat {
            color: var(--c-text-secondary);
            font-weight: 600;
        }
        .table-caption {
            padding: 16px 20px;
            border-bottom: 1px solid var(--c-border);
            background: #fff;
            font-size: 14px;
            color: var(--c-text-secondary);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .table-footer {
            padding: 14px 20px;
            border-top: 1px solid var(--c-border);
            background: #fff;
            font-size: 13px;
            color: var(--c-text-secondary);
            border-radius: 0 0 var(--radius-card) var(--radius-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        /* ========== 卡片 ========== */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 28px;
        }
        .data-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-default);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-fast);
        }
        .data-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(184,145,90,0.5);
        }
        .data-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .data-card-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }
        .data-card-desc {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
        }
        .data-card-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            background: var(--c-warmwhite);
            color: var(--c-ink);
            border: 1px solid var(--c-border);
            margin-bottom: 12px;
        }
        .data-card-tag--copper {
            background: rgba(184,145,90,0.12);
            color: var(--c-copper);
            border-color: rgba(184,145,90,0.3);
        }
        /* ========== 长文排版 ========== */
        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-primary);
        }
        .article-body h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--c-ink);
            margin: 32px 0 16px;
            letter-spacing: -0.2px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 20px;
            padding: 0;
        }
        .article-body li {
            margin-bottom: 10px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--c-copper);
            padding: 16px 20px;
            margin: 24px 0;
            background: rgba(184,145,90,0.06);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            font-size: 15px;
            color: var(--c-text-secondary);
            font-style: italic;
        }
        .article-body .img-wrap {
            margin: 24px 0;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .article-body .img-wrap img {
            width: 100%;
            height: auto;
        }
        .article-body .img-caption {
            padding: 12px 16px;
            font-size: 13px;
            color: var(--c-text-secondary);
            background: #fff;
            border-top: 1px solid var(--c-border);
        }
        /* ========== FAQ ========== */
        .accordion {
            border: none;
            border-radius: 0;
            box-shadow: none;
            background: transparent;
        }
        .accordion-item {
            border-bottom: 1px solid var(--c-border);
            background: transparent;
            margin-bottom: 0;
        }
        .accordion-item:first-child {
            border-top: 1px solid var(--c-border);
        }
        .accordion-title {
            background: transparent;
            border: none;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-ink);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            width: 100%;
            text-align: left;
        }
        .accordion-title:hover {
            color: var(--c-copper);
        }
        .accordion-title .accordion-arrow {
            font-size: 14px;
            color: var(--c-copper);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .accordion-title[aria-expanded="true"] .accordion-arrow {
            transform: rotate(180deg);
        }
        .accordion-content {
            background: transparent;
            border: none;
            padding: 0 0 18px;
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.8;
        }
        /* ========== 图文区块 ========== */
        .article-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            margin: 28px 0;
        }
        .article-split .img-side {
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .article-split .img-side img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-split .text-side h3 {
            margin-top: 0;
            margin-bottom: 12px;
            font-size: 22px;
            font-weight: 700;
            color: var(--c-ink);
            letter-spacing: -0.2px;
        }
        .article-split .text-side p {
            margin-bottom: 14px;
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.85;
        }
        /* ========== CTA ========== */
        .cta-panel {
            background: var(--c-ink);
            border-radius: var(--radius-large);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            box-shadow: var(--shadow-hover);
        }
        .cta-panel h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }
        .cta-panel p {
            color: rgba(255,255,255,0.75);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-panel .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cta-panel .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cta-panel .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            background: #fff;
            color: var(--c-ink);
            font-size: 14px;
            transition: border-color var(--transition-fast);
        }
        .cta-panel .cta-form input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--c-copper);
            padding-left: 6px;
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 14px;
            color: rgba(255,255,255,0.7);
        }
        .footer-contact li {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--c-copper);
            margin-top: 4px;
            flex-shrink: 0;
        }
        .footer-sub-text {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            margin-bottom: 12px;
        }
        .footer-sub-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-sub-input-wrap {
            display: flex;
            gap: 8px;
            flex: 1;
            flex-wrap: wrap;
        }
        .footer-sub-input-wrap input {
            flex: 1;
            min-width: 140px;
            padding: 10px 14px;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-card);
            background: rgba(255,255,255,0.08);
            color: #fff;
            font-size: 13px;
            transition: border-color var(--transition-fast);
        }
        .footer-sub-input-wrap input::placeholder {
            color: rgba(255,255,255,0.45);
        }
        .footer-sub-input-wrap input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-left {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom-right {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom-right a {
            color: rgba(255,255,255,0.7);
            transition: color var(--transition-fast);
        }
        .footer-bottom-right a:hover {
            color: var(--c-copper);
        }
        /* ========== 响铃加载 ========== */
        .fade-up {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        /* ========== 移动端 ========== */
        @media (max-width: 1024px) {
            .site-container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .ranking-hero-title {
                font-size: 38px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-right: 1px solid rgba(255,255,255,0.15);
                border-bottom: 1px solid rgba(255,255,255,0.15);
            }
            .stat-item:nth-child(2n) {
                border-right: none;
            }
            .stat-item:nth-child(n+3) {
                border-bottom: none;
            }
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-split {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 640px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .ranking-hero {
                padding: 48px 0 0;
                min-height: 340px;
            }
            .ranking-hero-title {
                font-size: 30px;
            }
            .ranking-hero-sub {
                font-size: 15px;
            }
            .countdown-bar {
                padding: 10px 14px;
                gap: 10px;
            }
            .countdown-timer .cd-num {
                font-size: 16px;
            }
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.15);
                padding: 20px 16px;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .stat-number {
                font-size: 28px;
            }
            .data-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-split .text-side h3 {
                font-size: 19px;
            }
            .cta-panel {
                padding: 24px;
                gap: 20px;
            }
            .cta-panel h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom-left {
                gap: 10px;
            }
            .brand-actions .brand-action-link span:not(.sr-only) {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .channel-row {
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-base);
            }
            .channel-row.open {
                max-height: 400px;
            }
            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding: 8px 0;
                overflow-y: auto;
            }
            .channel-nav li + li::before {
                display: none;
            }
            .channel-nav a {
                padding: 12px 4px;
                border-bottom: 1px solid var(--c-border);
                font-size: 15px;
            }
            .channel-nav a:last-child {
                border-bottom: none;
            }
            .channel-nav a.active::after {
                display: none;
            }
            .channel-nav a.active {
                color: var(--c-copper);
                font-weight: 700;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-actions .btn {
                width: auto;
                flex: 1;
                min-width: 120px;
            }
        }

/* roulang page: category1 */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        a:hover, a:focus {
            color: var(--c-copper);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }
        .site-container--narrow {
            max-width: 860px;
        }
        .row {
            max-width: 100%;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }
        .logo-text a:hover {
            color: var(--c-copper);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }
        .brand-action-link:hover {
            color: var(--c-copper);
        }
        .brand-action-link i {
            font-size: 15px;
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 4px 8px;
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }
        .channel-nav li + li {
            margin-left: 0;
        }
        .channel-nav li + li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }
        .channel-nav a {
            display: block;
            padding: 13px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }
        .channel-nav a:hover {
            color: var(--c-ink);
        }
        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }
        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 20px;
            right: 20px;
            height: 2px;
            background: var(--c-copper);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 18px 0 0;
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .breadcrumb-bar a {
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-bar a:hover {
            color: var(--c-copper);
        }
        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: var(--c-border);
        }
        .breadcrumb-bar .current {
            color: var(--c-ink);
            font-weight: 500;
        }

        /* ========== Hero 大头条 ========== */
        .hero-news {
            padding: 40px 0 48px;
            border-bottom: 1px solid var(--c-border);
        }
        .hero-news-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: stretch;
        }
        .hero-news-image {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
            min-height: 420px;
            background: var(--c-stone);
        }
        .hero-news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .hero-news-image .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,26,26,0.05) 30%, rgba(26,26,26,0.65) 100%);
        }
        .hero-news-image .hero-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--c-copper);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .hero-news-image .hero-img-caption {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            color: rgba(255,255,255,0.9);
            font-size: 13px;
        }
        .hero-news-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .hero-news-kicker {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-copper);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .hero-news-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            color: var(--c-ink);
            margin: 0 0 18px;
        }
        .hero-news-summary {
            font-size: 17px;
            line-height: 1.85;
            color: var(--c-text-secondary);
            margin: 0 0 24px;
        }
        .hero-news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: var(--c-text-secondary);
            align-items: center;
            margin-bottom: 28px;
        }
        .hero-news-meta i {
            color: var(--c-copper);
            margin-right: 5px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-card);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            cursor: pointer;
            border: none;
            transition: all var(--transition-slow);
            text-align: center;
            line-height: 1.4;
        }
        .btn--primary {
            background: var(--c-ink);
            color: #fff;
            border: 1px solid var(--c-ink);
        }
        .btn--primary:hover {
            background: var(--c-copper);
            border-color: var(--c-copper);
            color: var(--c-ink);
        }
        .btn--ghost {
            background: transparent;
            color: var(--c-ink);
            border: 1px solid var(--c-copper);
        }
        .btn--ghost:hover {
            background: var(--c-copper);
            color: var(--c-ink);
        }
        .btn--sm {
            padding: 9px 20px;
            font-size: 14px;
        }
        .hero-news-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ========== 次要头条 ========== */
        .secondary-news {
            padding: 56px 0 0;
        }
        .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-ink);
            margin: 0 0 32px;
            letter-spacing: -0.3px;
        }
        .secondary-news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-large);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-card-image img {
            transform: scale(1.03);
        }
        .news-card-body {
            padding: 22px 24px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-date {
            font-size: 13px;
            color: var(--c-text-secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-card-date i {
            color: var(--c-copper);
            font-size: 12px;
        }
        .news-card-title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--c-ink);
            margin: 0 0 10px;
            transition: color var(--transition-fast);
        }
        .news-card:hover .news-card-title {
            color: var(--c-copper);
        }
        .news-card-summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--c-text-secondary);
            margin: 0 0 16px;
            flex-grow: 1;
        }
        .news-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-copper);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .news-card-link:hover {
            gap: 9px;
            color: var(--c-ink);
        }

        /* ========== 新闻列表流 + 右侧栏 ========== */
        .news-list-section {
            padding: 64px 0 0;
        }
        .news-list-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }
        .news-list-items {
            display: flex;
            flex-direction: column;
        }
        .news-list-item {
            display: flex;
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid var(--c-border);
            transition: background var(--transition-fast);
        }
        .news-list-item:first-child {
            padding-top: 0;
        }
        .news-list-item:hover {
            background: rgba(184, 145, 90, 0.03);
        }
        .news-item-date-block {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            background: var(--c-ink);
            color: #fff;
            border-radius: var(--radius-card);
            padding: 10px 6px;
            align-self: flex-start;
        }
        .news-item-date-block .day {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.2;
        }
        .news-item-date-block .month {
            font-size: 12px;
            font-weight: 500;
            color: var(--c-copper);
            letter-spacing: 1px;
        }
        .news-item-body {
            flex-grow: 1;
        }
        .news-item-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin: 0 0 8px;
            color: var(--c-ink);
            transition: color var(--transition-fast);
        }
        .news-list-item:hover .news-item-title {
            color: var(--c-copper);
        }
        .news-item-summary {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            margin: 0 0 8px;
        }
        .news-item-more {
            font-size: 13px;
            color: var(--c-copper);
            font-weight: 500;
        }
        /* 右侧栏 */
        .sidebar-widget {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-widget-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--c-copper);
            display: inline-block;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-pill {
            display: inline-block;
            padding: 5px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--c-text-secondary);
            background: var(--c-warmwhite);
            border: 1px solid var(--c-border);
            border-radius: 20px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-pill:hover {
            background: var(--c-copper);
            color: #fff;
            border-color: var(--c-copper);
        }
        .archive-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .archive-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--c-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }
        .archive-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .archive-list li:hover {
            color: var(--c-copper);
            cursor: pointer;
        }
        .archive-list .count {
            background: var(--c-warmwhite);
            border-radius: 12px;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-text-secondary);
        }

        /* ========== 数据统计条带 ========== */
        .stats-strip {
            margin-top: 72px;
            background: var(--c-stone);
            border-radius: var(--radius-large);
            padding: 44px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }
        .stat-item {
            text-align: center;
            padding: 12px 16px;
            position: relative;
        }
        .stat-item + .stat-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: rgba(255,255,255,0.15);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--c-copper);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255,255,255,0.75);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            padding: 72px 0 0;
        }
        .deep-content-inner {
            max-width: 820px;
        }
        .deep-content-inner h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--c-ink);
            margin: 40px 0 18px;
            letter-spacing: -0.3px;
        }
        .deep-content-inner h3 {
            font-size: 21px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--c-ink);
            margin: 30px 0 14px;
        }
        .deep-content-inner p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-primary);
            margin: 0 0 18px;
        }
        .deep-content-inner blockquote {
            border-left: 3px solid var(--c-copper);
            padding: 16px 20px;
            background: #fff;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            font-size: 15px;
            line-height: 1.9;
            color: var(--c-text-secondary);
            margin: 24px 0;
        }
        .deep-content-inner ul {
            margin: 0 0 18px;
            padding-left: 22px;
            list-style: none;
        }
        .deep-content-inner ul li {
            position: relative;
            padding-left: 18px;
            margin-bottom: 10px;
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
        }
        .deep-content-inner ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--c-copper);
        }
        .deep-content-divider {
            border: none;
            height: 1px;
            background: var(--c-border);
            margin: 48px 0 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 64px 0 0;
        }
        .faq-list {
            max-width: 820px;
        }
        .accordion-item {
            border-bottom: 1px solid var(--c-border);
            padding: 0;
            margin: 0;
        }
        .accordion-item:first-child {
            border-top: 1px solid var(--c-border);
        }
        .accordion-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 4px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 17px;
            font-weight: 600;
            color: var(--c-ink);
            transition: color var(--transition-fast);
            gap: 16px;
        }
        .accordion-trigger:hover {
            color: var(--c-copper);
        }
        .accordion-trigger .icon-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--c-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--c-copper);
            transition: transform var(--transition-fast), background var(--transition-fast);
        }
        .accordion-trigger[aria-expanded="true"] .icon-arrow {
            transform: rotate(180deg);
            background: var(--c-copper);
            color: #fff;
            border-color: var(--c-copper);
        }
        .accordion-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .accordion-panel-inner {
            padding: 0 4px 22px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--c-text-secondary);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 72px 0 0;
        }
        .cta-panel {
            background: var(--c-ink);
            border-radius: var(--radius-large);
            padding: 52px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-panel-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 14px;
            letter-spacing: -0.3px;
        }
        .cta-panel-left p {
            font-size: 15px;
            color: rgba(255,255,255,0.7);
            line-height: 1.85;
            margin: 0;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex-grow: 1;
            min-width: 180px;
            padding: 12px 16px;
            border-radius: var(--radius-card);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.95);
            font-size: 15px;
            color: var(--c-ink);
            transition: border-color var(--transition-fast);
        }
        .cta-form input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        .cta-form input::placeholder {
            color: #999;
        }
        .cta-form .btn {
            flex-shrink: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: rgba(255,255,255,0.75);
            margin-top: 96px;
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.9fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.85;
            color: rgba(255,255,255,0.65);
            margin: 0 0 16px;
            max-width: 280px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--c-copper);
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--c-copper);
            font-size: 14px;
            margin-top: 4px;
        }
        .footer-sub-text {
            font-size: 14px;
            color: rgba(255,255,255,0.65);
            margin: 0 0 14px;
        }
        .footer-sub-form {
            margin: 0;
        }
        .footer-sub-input-wrap {
            display: flex;
            gap: 8px;
        }
        .footer-sub-input-wrap input {
            flex-grow: 1;
            min-width: 0;
            padding: 10px 14px;
            border-radius: var(--radius-card);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            font-size: 14px;
            color: #fff;
            transition: border-color var(--transition-fast);
        }
        .footer-sub-input-wrap input::placeholder {
            color: rgba(255,255,255,0.4);
        }
        .footer-sub-input-wrap input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-left {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
        }
        .footer-bottom-left span {
            font-size: 13px;
        }
        .footer-bottom-right {
            display: flex;
            gap: 18px;
            align-items: center;
        }
        .footer-bottom-right a {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom-right a:hover {
            color: var(--c-copper);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .channel-nav a {
                padding: 13px 16px;
                font-size: 14px;
            }
            .hero-news-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-news-image {
                min-height: 300px;
            }
            .hero-news-title {
                font-size: 30px;
            }
            .news-list-layout {
                grid-template-columns: 1fr;
            }
            .sidebar-widget {
                margin-bottom: 0;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px 0;
                padding: 32px 20px;
            }
            .stat-item + .stat-item::before {
                display: none;
            }
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 36px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-actions .brand-action-link span:not(.sr-only) {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .channel-row {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--c-warmwhite);
                border-bottom: 1px solid var(--c-border);
                box-shadow: 0 8px 20px rgba(0,0,0,0.08);
            }
            .channel-row.is-open {
                display: block;
            }
            .channel-nav {
                flex-direction: column;
                overflow-y: auto;
                max-height: 60vh;
            }
            .channel-nav li + li::before {
                display: none;
            }
            .channel-nav a {
                padding: 14px 20px;
                font-size: 15px;
                border-bottom: 1px solid var(--c-border);
            }
            .channel-nav a.active::after {
                display: none;
            }
            .channel-nav a.active {
                background: rgba(184,145,90,0.1);
                border-left: 3px solid var(--c-copper);
            }
            .secondary-news-grid {
                grid-template-columns: 1fr;
            }
            .news-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item-date-block {
                width: auto;
                display: inline-flex;
                align-items: center;
                gap: 8px;
                padding: 6px 14px;
                align-self: flex-start;
            }
            .news-item-date-block .day {
                font-size: 20px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 32px;
            }
            .deep-content-inner h2 {
                font-size: 24px;
            }
            .deep-content-inner h3 {
                font-size: 19px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: auto;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom-left {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .hero-news-image {
                min-height: 220px;
            }
            .hero-news-title {
                font-size: 24px;
            }
            .section-title {
                font-size: 24px;
            }
            .stats-strip {
                grid-template-columns: 1fr;
                padding: 24px 16px;
            }
            .stat-item + .stat-item::before {
                display: none;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form .btn {
                width: 100%;
            }
            .btn {
                padding: 11px 22px;
                font-size: 14px;
            }
            .footer-sub-input-wrap {
                flex-direction: column;
            }
            .footer-sub-input-wrap .btn {
                width: 100%;
            }
        }

/* roulang page: category5 */
:root {
        --c-ink: #1A1A1A;
        --c-copper: #B8915A;
        --c-warmwhite: #F7F5F2;
        --c-stone: #2D2D2D;
        --c-text-primary: #1A1A1A;
        --c-text-secondary: #6B6B6B;
        --c-border: #E5E2DE;
        --c-error: #C0392B;
        --c-success: #2E7D32;
        --radius-card: 8px;
        --radius-large: 16px;
        --shadow-default: 0 2px 8px rgba(0,0,0,0.04);
        --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
        --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease-out;
        --transition-slow: 0.25s ease;
        --section-gap-desktop: 100px;
        --section-gap-mobile: 56px;
        --container-max: 1200px;
    }

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        font-family: var(--font-stack);
        font-size: 16px;
        line-height: 1.85;
        color: var(--c-text-primary);
        background-color: var(--c-warmwhite);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
    }

    a {
        color: var(--c-ink);
        text-decoration: none;
        transition: color var(--transition-fast), border-color var(--transition-fast);
    }
    a:hover, a:focus {
        color: var(--c-copper);
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--c-copper);
        outline-offset: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    button, input, textarea, select {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
    }

    button:focus-visible, input:focus-visible, textarea:focus-visible {
        outline: 2px solid var(--c-copper);
        outline-offset: 2px;
    }

    .site-container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 40px;
        padding-right: 40px;
    }

    .site-container--narrow {
        max-width: 860px;
    }

    .row {
        max-width: 100%;
    }

    /* ========== 导航 ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(247,245,242,0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--c-border);
        transition: box-shadow var(--transition-base);
    }
    .site-header.scrolled {
        box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    }
    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 0;
        border-bottom: 1px solid var(--c-border);
        flex-wrap: wrap;
        gap: 10px;
    }
    .logo-area {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--c-ink);
        color: var(--c-copper);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 16px;
        letter-spacing: -0.5px;
        flex-shrink: 0;
    }
    .logo-text {
        font-size: 22px;
        font-weight: 800;
        letter-spacing: -0.3px;
        color: var(--c-ink);
        line-height: 1.2;
    }
    .logo-text a {
        color: var(--c-ink);
        display: inline-block;
    }
    .logo-text a:hover {
        color: var(--c-copper);
    }
    .brand-actions {
        display: flex;
        align-items: center;
        gap: 18px;
    }
    .brand-action-link {
        font-size: 14px;
        color: var(--c-text-secondary);
        display: inline-flex;
        align-items: center;
        gap: 5px;
        transition: color var(--transition-fast);
        white-space: nowrap;
    }
    .brand-action-link:hover {
        color: var(--c-copper);
    }
    .brand-action-link i {
        font-size: 15px;
    }
    .hamburger-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 22px;
        color: var(--c-ink);
        cursor: pointer;
        padding: 4px 8px;
        border-radius: 4px;
        transition: color var(--transition-fast);
    }
    .hamburger-toggle:hover {
        color: var(--c-copper);
    }
    .channel-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0;
        position: relative;
    }
    .channel-nav {
        display: flex;
        align-items: center;
        gap: 0;
        list-style: none;
        margin: 0;
        padding: 0;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .channel-nav::-webkit-scrollbar {
        display: none;
    }
    .channel-nav li {
        flex-shrink: 0;
        position: relative;
    }
    .channel-nav li + li {
        margin-left: 0;
    }
    .channel-nav li + li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 1px;
        height: 18px;
        background: var(--c-border);
    }
    .channel-nav a {
        display: block;
        padding: 13px 22px;
        font-size: 15px;
        font-weight: 500;
        color: var(--c-text-secondary);
        position: relative;
        white-space: nowrap;
        transition: color var(--transition-fast);
        letter-spacing: 0.4px;
    }
    .channel-nav a:hover {
        color: var(--c-ink);
    }
    .channel-nav a.active {
        color: var(--c-ink);
        font-weight: 600;
    }
    .channel-nav a.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 22px;
        right: 22px;
        height: 2px;
        background: var(--c-copper);
    }

    /* ========== 面包屑 ========== */
    .breadcrumb-section {
        padding: 28px 0 0;
    }
    .breadcrumb {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 14px;
        color: var(--c-text-secondary);
    }
    .breadcrumb li {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .breadcrumb li:not(:last-child)::after {
        content: '/';
        color: var(--c-border);
        font-size: 13px;
        margin-left: 4px;
    }
    .breadcrumb a {
        color: var(--c-text-secondary);
        transition: color var(--transition-fast);
    }
    .breadcrumb a:hover {
        color: var(--c-copper);
    }
    .breadcrumb .current {
        color: var(--c-ink);
        font-weight: 600;
    }

    /* ========== Hero 品牌故事头部 ========== */
    .story-hero {
        padding: 56px 0 48px;
        border-bottom: 1px solid var(--c-border);
    }
    .story-hero .story-eyebrow {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--c-copper);
        margin-bottom: 16px;
    }
    .story-hero h1 {
        font-size: 48px;
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: -0.5px;
        color: var(--c-ink);
        margin-bottom: 20px;
        max-width: 800px;
    }
    .story-hero .story-hero-desc {
        font-size: 18px;
        line-height: 1.9;
        color: var(--c-text-secondary);
        max-width: 720px;
        margin-bottom: 0;
    }

    /* ========== 交替图文 ========== */
    .story-section {
        padding: var(--section-gap-desktop) 0;
    }
    .story-section--alt {
        background: #FFFFFF;
    }
    .story-alt-grid {
        display: flex;
        align-items: center;
        gap: 48px;
        margin-bottom: 64px;
    }
    .story-alt-grid:last-child {
        margin-bottom: 0;
    }
    .story-alt-grid.reverse {
        flex-direction: row-reverse;
    }
    .story-alt-image {
        flex: 0 0 48%;
        border-radius: var(--radius-large);
        overflow: hidden;
        box-shadow: var(--shadow-default);
    }
    .story-alt-image img {
        width: 100%;
        height: 320px;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .story-alt-image:hover img {
        transform: scale(1.02);
    }
    .story-alt-content {
        flex: 1;
    }
    .story-alt-content .story-chapter {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 1.5px;
        color: var(--c-copper);
        margin-bottom: 10px;
    }
    .story-alt-content h2 {
        font-size: 30px;
        font-weight: 700;
        line-height: 1.3;
        color: var(--c-ink);
        margin-bottom: 16px;
        letter-spacing: -0.3px;
    }
    .story-alt-content p {
        font-size: 16px;
        line-height: 1.9;
        color: var(--c-text-secondary);
        margin-bottom: 14px;
    }
    .story-alt-content p:last-child {
        margin-bottom: 0;
    }

    /* ========== 里程碑时间线 ========== */
    .timeline-section {
        background: var(--c-stone);
        padding: var(--section-gap-desktop) 0;
    }
    .timeline-section .section-head {
        text-align: left;
        margin-bottom: 48px;
    }
    .timeline-section .section-head h2 {
        font-size: 34px;
        font-weight: 700;
        color: var(--c-warmwhite);
        line-height: 1.3;
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .timeline-section .section-head p {
        color: rgba(247,245,242,0.7);
        font-size: 16px;
        line-height: 1.8;
        max-width: 640px;
    }
    .timeline {
        position: relative;
        padding-left: 40px;
    }
    .timeline::before {
        content: '';
        position: absolute;
        left: 8px;
        top: 6px;
        bottom: 6px;
        width: 2px;
        background: rgba(184,145,90,0.4);
    }
    .timeline-item {
        position: relative;
        padding-bottom: 40px;
    }
    .timeline-item:last-child {
        padding-bottom: 0;
    }
    .timeline-item::before {
        content: '';
        position: absolute;
        left: -40px;
        top: 7px;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: var(--c-copper);
        border: 3px solid var(--c-stone);
        box-shadow: 0 0 0 2px var(--c-copper);
    }
    .timeline-date {
        display: inline-block;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 1px;
        color: var(--c-copper);
        margin-bottom: 6px;
    }
    .timeline-item h3 {
        font-size: 20px;
        font-weight: 600;
        color: var(--c-warmwhite);
        line-height: 1.4;
        margin-bottom: 8px;
    }
    .timeline-item p {
        font-size: 15px;
        line-height: 1.85;
        color: rgba(247,245,242,0.75);
        max-width: 680px;
    }

    /* ========== 引用块 ========== */
    .quote-section {
        padding: var(--section-gap-desktop) 0;
    }
    .quote-block {
        max-width: 780px;
        margin: 0 auto;
        text-align: left;
        padding: 36px 40px;
        border-left: 4px solid var(--c-copper);
        background: #FFFFFF;
        border-radius: 0 var(--radius-card) var(--radius-card) 0;
        box-shadow: var(--shadow-default);
    }
    .quote-block blockquote {
        margin: 0;
        padding: 0;
        font-size: 20px;
        line-height: 1.8;
        font-weight: 500;
        color: var(--c-ink);
        font-style: italic;
        letter-spacing: 0.3px;
    }
    .quote-block .quote-author {
        margin-top: 16px;
        font-size: 14px;
        font-weight: 600;
        color: var(--c-copper);
        font-style: normal;
    }

    /* ========== 品牌理念 ========== */
    .values-section {
        padding: var(--section-gap-desktop) 0;
        background: #FFFFFF;
    }
    .values-section .section-head {
        margin-bottom: 40px;
    }
    .values-section .section-head h2 {
        font-size: 32px;
        font-weight: 700;
        color: var(--c-ink);
        line-height: 1.3;
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .values-section .section-head p {
        color: var(--c-text-secondary);
        font-size: 16px;
        line-height: 1.8;
        max-width: 680px;
    }
    .values-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .value-card {
        background: var(--c-warmwhite);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-card);
        padding: 28px 24px;
        transition: box-shadow var(--transition-base), transform var(--transition-base);
    }
    .value-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }
    .value-card .value-icon {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: var(--c-ink);
        color: var(--c-copper);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 17px;
        margin-bottom: 14px;
    }
    .value-card h3 {
        font-size: 19px;
        font-weight: 600;
        color: var(--c-ink);
        line-height: 1.4;
        margin-bottom: 10px;
    }
    .value-card p {
        font-size: 15px;
        line-height: 1.85;
        color: var(--c-text-secondary);
        margin: 0;
    }

    /* ========== CTA ========== */
    .story-cta-section {
        padding: var(--section-gap-desktop) 0;
    }
    .story-cta-box {
        background: var(--c-ink);
        border-radius: var(--radius-large);
        padding: 48px 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
    }
    .story-cta-box .cta-text h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--c-warmwhite);
        line-height: 1.3;
        margin-bottom: 8px;
        letter-spacing: -0.3px;
    }
    .story-cta-box .cta-text p {
        font-size: 15px;
        line-height: 1.8;
        color: rgba(247,245,242,0.7);
        margin: 0;
    }
    .story-cta-box .btn-group {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
        flex-shrink: 0;
    }

    /* ========== 按钮 ========== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 24px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-card);
        border: 1px solid transparent;
        cursor: pointer;
        transition: all var(--transition-slow);
        text-align: center;
        white-space: nowrap;
        letter-spacing: 0.3px;
        line-height: 1.4;
    }
    .btn--primary {
        background: var(--c-ink);
        color: var(--c-warmwhite);
        border: 1px solid var(--c-ink);
    }
    .btn--primary:hover {
        background: var(--c-copper);
        color: var(--c-ink);
        border-color: var(--c-copper);
    }
    .btn--ghost {
        background: transparent;
        color: var(--c-ink);
        border: 1px solid var(--c-copper);
    }
    .btn--ghost:hover {
        background: var(--c-copper);
        color: var(--c-ink);
    }
    .btn--ghost-light {
        background: transparent;
        color: var(--c-warmwhite);
        border: 1px solid rgba(247,245,242,0.5);
    }
    .btn--ghost-light:hover {
        background: var(--c-warmwhite);
        color: var(--c-ink);
        border-color: var(--c-warmwhite);
    }
    .btn--sm {
        padding: 9px 16px;
        font-size: 13px;
        border-radius: 6px;
    }

    /* ========== 页脚 ========== */
    .site-footer {
        background: var(--c-stone);
        color: rgba(247,245,242,0.8);
        padding: 56px 0 0;
        margin-top: 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1.2fr 1.4fr;
        gap: 36px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(247,245,242,0.12);
    }
    .footer-brand .footer-logo {
        font-size: 22px;
        font-weight: 800;
        color: var(--c-warmwhite);
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .footer-brand .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(247,245,242,0.65);
        max-width: 300px;
        margin: 0;
    }
    .footer-col h5 {
        font-size: 15px;
        font-weight: 600;
        color: var(--c-warmwhite);
        margin-bottom: 16px;
        letter-spacing: 0.4px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links li:last-child {
        margin-bottom: 0;
    }
    .footer-links a {
        color: rgba(247,245,242,0.65);
        font-size: 14px;
        transition: color var(--transition-fast);
        display: inline-block;
    }
    .footer-links a:hover {
        color: var(--c-copper);
    }
    .footer-contact {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-contact li {
        color: rgba(247,245,242,0.65);
        font-size: 14px;
        margin-bottom: 12px;
        display: flex;
        align-items: flex-start;
        gap: 10px;
        line-height: 1.6;
    }
    .footer-contact li i {
        color: var(--c-copper);
        margin-top: 4px;
        flex-shrink: 0;
    }
    .footer-sub-text {
        font-size: 14px;
        color: rgba(247,245,242,0.65);
        margin-bottom: 14px;
        line-height: 1.7;
    }
    .footer-sub-form {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-sub-input-wrap {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    .footer-sub-input-wrap input {
        flex: 1;
        min-width: 140px;
        background: rgba(247,245,242,0.08);
        border: 1px solid rgba(247,245,242,0.2);
        border-radius: 6px;
        padding: 10px 14px;
        font-size: 14px;
        color: var(--c-warmwhite);
        transition: border-color var(--transition-fast);
    }
    .footer-sub-input-wrap input::placeholder {
        color: rgba(247,245,242,0.4);
    }
    .footer-sub-input-wrap input:focus {
        border-color: var(--c-copper);
        outline: none;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding: 20px 0;
        font-size: 13px;
        color: rgba(247,245,242,0.5);
    }
    .footer-bottom-left {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px;
    }
    .footer-bottom-right {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-bottom-right a {
        color: rgba(247,245,242,0.5);
        font-size: 13px;
        transition: color var(--transition-fast);
    }
    .footer-bottom-right a:hover {
        color: var(--c-copper);
    }
    .footer-bottom-right .divider {
        color: rgba(247,245,242,0.3);
    }

    /* ========== FAQ ========== */
    .faq-section {
        padding: var(--section-gap-desktop) 0;
        background: #FFFFFF;
    }
    .faq-section .section-head {
        margin-bottom: 36px;
    }
    .faq-section .section-head h2 {
        font-size: 30px;
        font-weight: 700;
        color: var(--c-ink);
        line-height: 1.3;
        margin-bottom: 10px;
        letter-spacing: -0.3px;
    }
    .faq-section .section-head p {
        color: var(--c-text-secondary);
        font-size: 15px;
        line-height: 1.8;
        margin: 0;
    }
    .faq-list {
        border-top: 1px solid var(--c-border);
    }
    .faq-item {
        border-bottom: 1px solid var(--c-border);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 18px 0;
        background: none;
        border: none;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--c-ink);
        text-align: left;
        transition: color var(--transition-fast);
        gap: 16px;
    }
    .faq-question:hover {
        color: var(--c-copper);
    }
    .faq-question .faq-arrow {
        flex-shrink: 0;
        font-size: 14px;
        color: var(--c-copper);
        transition: transform 0.2s ease;
    }
    .faq-question[aria-expanded="true"] .faq-arrow {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease, padding 0.25s ease;
        padding: 0;
    }
    .faq-answer.open {
        max-height: 300px;
        padding: 0 0 20px;
    }
    .faq-answer p {
        font-size: 15px;
        line-height: 1.85;
        color: var(--c-text-secondary);
        margin: 0;
        max-width: 760px;
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
        .site-container {
            padding-left: 24px;
            padding-right: 24px;
        }
        .story-hero h1 {
            font-size: 38px;
        }
        .story-alt-grid {
            gap: 32px;
        }
        .story-alt-image img {
            height: 260px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
    }

    @media (max-width: 768px) {
        .channel-nav a {
            padding: 12px 16px;
            font-size: 14px;
        }
        .story-alt-grid,
        .story-alt-grid.reverse {
            flex-direction: column;
            align-items: stretch;
            gap: 20px;
        }
        .story-alt-image {
            flex: none;
            width: 100%;
        }
        .story-alt-image img {
            height: 220px;
        }
        .story-hero h1 {
            font-size: 32px;
        }
        .story-hero .story-hero-desc {
            font-size: 16px;
        }
        .values-grid {
            grid-template-columns: 1fr 1fr;
        }
        .timeline {
            padding-left: 32px;
        }
        .timeline-item::before {
            left: -32px;
            width: 14px;
            height: 14px;
        }
        .timeline::before {
            left: 6px;
        }
        .quote-block {
            padding: 24px 20px;
        }
        .quote-block blockquote {
            font-size: 17px;
        }
        .story-cta-box {
            padding: 32px 24px;
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
    }

    @media (max-width: 520px) {
        :root {
            --section-gap-desktop: 56px;
            --section-gap-mobile: 40px;
        }
        .site-container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .brand-row {
            padding: 10px 0;
        }
        .logo-text {
            font-size: 19px;
        }
        .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 14px;
        }
        .brand-actions {
            gap: 10px;
        }
        .brand-action-link span {
            display: none;
        }
        .hamburger-toggle {
            display: block;
        }
        .channel-row {
            display: none;
        }
        .channel-row.mobile-open {
            display: block;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--c-warmwhite);
            border-bottom: 1px solid var(--c-border);
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
            z-index: 999;
        }
        .channel-row.mobile-open .channel-nav {
            flex-direction: column;
            align-items: stretch;
            overflow-x: visible;
            padding: 8px 0;
        }
        .channel-row.mobile-open .channel-nav li + li::before {
            display: none;
        }
        .channel-row.mobile-open .channel-nav a {
            padding: 12px 16px;
            font-size: 15px;
            border-bottom: 1px solid var(--c-border);
        }
        .channel-row.mobile-open .channel-nav a.active::after {
            display: none;
        }
        .channel-row.mobile-open .channel-nav a.active {
            color: var(--c-copper);
        }
        .story-hero {
            padding: 32px 0 28px;
        }
        .story-hero h1 {
            font-size: 27px;
        }
        .story-alt-content h2 {
            font-size: 23px;
        }
        .values-grid {
            grid-template-columns: 1fr;
        }
        .story-cta-box {
            padding: 24px 18px;
        }
        .story-cta-box .btn-group {
            width: 100%;
            flex-direction: column;
        }
        .story-cta-box .btn-group .btn {
            width: 100%;
        }
        .quote-block {
            padding: 20px 16px;
        }
        .quote-block blockquote {
            font-size: 16px;
        }
        .footer-grid {
            gap: 20px;
        }
        .footer-bottom-left {
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }
        .btn--sm {
            padding: 8px 12px;
            font-size: 12px;
        }
        .section-head h2 {
            font-size: 24px !important;
        }
        .timeline-section .section-head h2 {
            font-size: 26px !important;
        }
    }

    /* ========== 移动端菜单JS辅助 ========== */
    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0,0,0,0);
        white-space: nowrap;
        border: 0;
    }

    /* ========== 通用section spacing ========== */
    .story-section,
    .timeline-section,
    .quote-section,
    .values-section,
    .faq-section,
    .story-cta-section {
        margin: 0;
    }
    .story-section {
        padding-bottom: var(--section-gap-desktop);
    }
    @media (max-width: 520px) {
        .story-section,
        .timeline-section,
        .quote-section,
        .values-section,
        .faq-section,
        .story-cta-section {
            padding-top: var(--section-gap-mobile);
            padding-bottom: var(--section-gap-mobile);
        }
    }

/* roulang page: category4 */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        a:hover, a:focus {
            color: var(--c-copper);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }
        .site-container--narrow {
            max-width: 860px;
        }
        .row {
            max-width: 100%;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }
        .logo-text a:hover {
            color: var(--c-copper);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }
        .brand-action-link:hover {
            color: var(--c-copper);
        }
        .brand-action-link i {
            font-size: 15px;
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 4px;
            transition: color var(--transition-fast);
        }
        .hamburger-toggle:hover {
            color: var(--c-copper);
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }
        .channel-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }
        .channel-nav a {
            display: block;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }
        .channel-nav a:hover {
            color: var(--c-ink);
        }
        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }
        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 22px;
            right: 22px;
            height: 2px;
            background: var(--c-copper);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 24px 0 0;
        }
        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-secondary);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li+li::before {
            content: '/';
            color: var(--c-border);
        }
        .breadcrumb a {
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--c-copper);
        }
        .breadcrumb .current {
            color: var(--c-ink);
            font-weight: 600;
        }

        /* ========== Hero ========== */
        .page-hero {
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--c-border);
        }
        .page-hero .hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            color: var(--c-ink);
            margin-bottom: 16px;
        }
        .page-hero .hero-subtitle {
            font-size: 18px;
            color: var(--c-text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }
        .page-hero .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .page-hero .hero-meta-item {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-hero .hero-meta-item i {
            color: var(--c-copper);
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section--tight {
            padding: 48px 0;
        }
        .section--dark {
            background: var(--c-stone);
            color: var(--c-warmwhite);
        }
        .section--dark .section-title {
            color: var(--c-warmwhite);
        }
        .section--dark .section-lead {
            color: #B5B5B5;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-ink);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-lead {
            font-size: 16px;
            color: var(--c-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .section-title-wrap {
            margin-bottom: 36px;
        }
        .section-title-wrap .section-title {
            margin-bottom: 8px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-card);
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
            transition: all var(--transition-slow);
            letter-spacing: 0.3px;
            line-height: 1.4;
        }
        .btn--primary {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border-color: var(--c-ink);
        }
        .btn--primary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
        }
        .btn--outline {
            background: transparent;
            color: var(--c-ink);
            border-color: var(--c-copper);
        }
        .btn--outline:hover {
            background: var(--c-copper);
            color: var(--c-ink);
        }
        .btn--ghost {
            background: transparent;
            color: var(--c-warmwhite);
            border-color: var(--c-warmwhite);
        }
        .btn--ghost:hover {
            background: var(--c-warmwhite);
            color: var(--c-ink);
        }
        .btn--sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn--lg {
            padding: 16px 36px;
            font-size: 16px;
        }
        .btn--block {
            display: block;
            width: 100%;
        }

        /* ========== 统计条带 ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 0;
        }
        .stat-cell {
            padding: 28px 24px;
            text-align: left;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }
        .stat-cell:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--c-copper);
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 14px;
            color: #B5B5B5;
            margin-top: 4px;
        }

        /* ========== 时间线 ========== */
        .timeline {
            position: relative;
            padding-left: 36px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--c-border);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 28px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -36px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--c-copper);
            border: 3px solid var(--c-warmwhite);
            box-shadow: 0 0 0 2px var(--c-copper);
        }
        .timeline-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .timeline-card .event-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .timeline-card .event-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-card .event-desc {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .timeline-card .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--c-text-secondary);
        }
        .timeline-card .event-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .timeline-card .event-meta i {
            color: var(--c-copper);
            font-size: 13px;
        }
        .event-status {
            display: inline-block;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .event-status--open {
            background: #E8F5E9;
            color: var(--c-success);
        }
        .event-status--soon {
            background: #FFF8E1;
            color: #F57F17;
        }
        .event-status--closed {
            background: #F5F5F5;
            color: var(--c-text-secondary);
        }
        .event-status--prep {
            background: #F3E5F5;
            color: #7B1FA2;
        }

        /* ========== 活动卡片栅格 ========== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .event-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-large);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .event-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--c-stone);
        }
        .event-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .event-card-image img {
            transform: scale(1.02);
        }
        .event-card-image .event-card-date-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(26, 26, 26, 0.85);
            color: #fff;
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .event-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .event-card-desc {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .event-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: var(--c-text-secondary);
            border-top: 1px solid var(--c-border);
            padding-top: 14px;
        }

        /* ========== FAQ ========== */
        .accordion-wrapper {
            border-top: 1px solid var(--c-border);
        }
        .faq-item {
            border-bottom: 1px solid var(--c-border);
            padding: 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            background: none;
            border: none;
            padding: 20px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-ink);
            text-align: left;
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--c-copper);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            color: var(--c-copper);
            transition: transform 0.2s ease;
            font-size: 14px;
        }
        .faq-question[aria-expanded="true"] .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease;
            padding: 0;
        }
        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--c-text-secondary);
        }

        /* ========== CTA表单 ========== */
        .cta-section {
            background: var(--c-stone);
            color: var(--c-warmwhite);
            padding: var(--section-gap-desktop) 0;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .cta-info h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--c-warmwhite);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.3px;
        }
        .cta-info p {
            color: #B5B5B5;
            line-height: 1.8;
            font-size: 15px;
            margin-bottom: 20px;
        }
        .cta-contact-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .cta-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #B5B5B5;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .cta-contact-list i {
            color: var(--c-copper);
            width: 18px;
            text-align: center;
        }
        .cta-form-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-large);
            padding: 32px;
        }
        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-warmwhite);
            display: block;
            margin-bottom: 6px;
        }
        .cta-form-card .form-input {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            color: var(--c-warmwhite);
            font-size: 15px;
            transition: border-color var(--transition-fast);
            margin-bottom: 16px;
        }
        .cta-form-card .form-input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .cta-form-card .form-input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        .cta-form-card textarea.form-input {
            min-height: 110px;
            resize: vertical;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: var(--c-warmwhite);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            font-size: 26px;
            font-weight: 800;
            color: var(--c-warmwhite);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .footer-desc {
            font-size: 14px;
            color: #B5B5B5;
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-warmwhite);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: #B5B5B5;
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--c-copper);
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #B5B5B5;
            margin-bottom: 10px;
        }
        .footer-contact i {
            color: var(--c-copper);
            width: 16px;
            text-align: center;
        }
        .footer-sub-text {
            font-size: 13px;
            color: #B5B5B5;
            margin-bottom: 12px;
        }
        .footer-sub-form {
            margin: 0;
        }
        .footer-sub-input-wrap {
            display: flex;
            gap: 8px;
        }
        .footer-sub-input-wrap input {
            flex: 1;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            color: var(--c-warmwhite);
            font-size: 14px;
            min-width: 0;
        }
        .footer-sub-input-wrap input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-sub-input-wrap input:focus {
            border-color: var(--c-copper);
            outline: none;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 12px;
            color: #999;
        }
        .footer-bottom-left {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
        }
        .footer-bottom-right {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .footer-bottom a {
            color: #B5B5B5;
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--c-copper);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .page-hero .hero-title {
                font-size: 40px;
            }
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-cell {
                border-right: 1px solid rgba(255, 255, 255, 0.1);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .stat-cell:nth-child(even) {
                border-right: none;
            }
            .stat-cell:nth-child(n+3) {
                border-bottom: none;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section {
                padding: 64px 0;
            }
        }
        @media (max-width: 768px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-row {
                padding: 10px 0;
            }
            .brand-actions .brand-action-link span:not(.sr-only) {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .channel-row {
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                flex-direction: column;
                align-items: stretch;
            }
            .channel-row.open {
                max-height: 400px;
            }
            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                overflow-x: visible;
                width: 100%;
                padding: 8px 0;
            }
            .channel-nav li+li::before {
                display: none;
            }
            .channel-nav a {
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--c-border);
            }
            .channel-nav a.active::after {
                left: 0;
                right: auto;
                width: 3px;
                height: 100%;
                bottom: 0;
                top: 0;
            }
            .page-hero {
                padding: 32px 0 24px;
            }
            .page-hero .hero-title {
                font-size: 32px;
            }
            .page-hero .hero-subtitle {
                font-size: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .event-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 32px;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline::before {
                left: 6px;
            }
            .timeline-item {
                padding-left: 18px;
                margin-bottom: 24px;
            }
            .timeline-dot {
                left: -30px;
                width: 12px;
                height: 12px;
                top: 8px;
            }
            .timeline-card {
                padding: 18px 16px;
            }
            .timeline-card .event-title {
                font-size: 17px;
            }
            .cta-form-card {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn--lg {
                padding: 14px 24px;
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .page-hero .hero-title {
                font-size: 28px;
            }
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .stat-cell {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 20px 16px;
            }
            .stat-cell:last-child {
                border-bottom: none;
            }
            .event-card-body {
                padding: 16px;
            }
            .cta-info h2 {
                font-size: 26px;
            }
        }

/* roulang page: category6 */
:root {
        --c-ink: #1A1A1A;
        --c-copper: #B8915A;
        --c-warmwhite: #F7F5F2;
        --c-stone: #2D2D2D;
        --c-text-primary: #1A1A1A;
        --c-text-secondary: #6B6B6B;
        --c-border: #E5E2DE;
        --c-error: #C0392B;
        --c-success: #2E7D32;
        --radius-card: 8px;
        --radius-large: 16px;
        --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
        --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
        --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease-out;
        --transition-slow: 0.25s ease;
        --section-gap-desktop: 100px;
        --section-gap-mobile: 56px;
        --container-max: 1200px;
    }

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        font-family: var(--font-stack);
        font-size: 16px;
        line-height: 1.85;
        color: var(--c-text-primary);
        background-color: var(--c-warmwhite);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    *, *::before, *::after {
        box-sizing: border-box;
    }

    a {
        color: var(--c-ink);
        text-decoration: none;
        transition: color var(--transition-fast), border-color var(--transition-fast);
    }
    a:hover, a:focus {
        color: var(--c-copper);
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--c-copper);
        outline-offset: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    button, input, textarea, select {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
    }
    button:focus-visible, input:focus-visible, textarea:focus-visible {
        outline: 2px solid var(--c-copper);
        outline-offset: 2px;
    }

    h1, h2, h3, h4, h5, h6 {
        color: var(--c-ink);
        margin-top: 0;
        font-weight: 700;
        line-height: 1.3;
    }

    h1 {
        font-size: 46px;
        line-height: 1.15;
        letter-spacing: -0.5px;
        font-weight: 800;
    }
    h2 {
        font-size: 32px;
        line-height: 1.25;
    }
    h3 {
        font-size: 22px;
        line-height: 1.4;
        font-weight: 600;
    }
    p {
        margin-bottom: 1.2em;
    }

    .site-container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 40px;
        padding-right: 40px;
    }
    .site-container--narrow {
        max-width: 860px;
    }
    .row {
        max-width: 100%;
    }

    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    /* ========== 导航 ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(247, 245, 242, 0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--c-border);
        transition: box-shadow var(--transition-base);
    }
    .site-header.scrolled {
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    }
    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 0;
        border-bottom: 1px solid var(--c-border);
        gap: 12px;
    }
    .logo-area {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
        min-width: 0;
    }
    .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--c-ink);
        color: var(--c-copper);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 16px;
        letter-spacing: -0.5px;
        flex-shrink: 0;
    }
    .logo-text {
        font-size: 22px;
        font-weight: 800;
        letter-spacing: -0.3px;
        color: var(--c-ink);
        line-height: 1.2;
        white-space: nowrap;
    }
    .logo-text a {
        color: var(--c-ink);
        display: inline-block;
    }
    .logo-text a:hover {
        color: var(--c-copper);
    }
    .brand-actions {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-shrink: 0;
    }
    .brand-action-link {
        font-size: 14px;
        color: var(--c-text-secondary);
        display: inline-flex;
        align-items: center;
        gap: 5px;
        transition: color var(--transition-fast);
        white-space: nowrap;
    }
    .brand-action-link:hover {
        color: var(--c-copper);
    }
    .brand-action-link i {
        font-size: 15px;
    }
    .hamburger-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 20px;
        color: var(--c-ink);
        cursor: pointer;
        padding: 6px;
        line-height: 1;
        border-radius: 4px;
        transition: color var(--transition-fast);
    }
    .hamburger-toggle:hover {
        color: var(--c-copper);
    }

    .channel-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0;
        position: relative;
    }
    .channel-nav {
        display: flex;
        align-items: center;
        gap: 0;
        list-style: none;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        margin: 0;
        padding: 0;
        width: 100%;
    }
    .channel-nav::-webkit-scrollbar {
        display: none;
    }
    .channel-nav li {
        flex-shrink: 0;
        position: relative;
        list-style: none;
    }
    .channel-nav li + li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 1px;
        height: 18px;
        background: var(--c-border);
    }
    .channel-nav a {
        display: block;
        padding: 13px 22px;
        font-size: 15px;
        font-weight: 500;
        color: var(--c-text-secondary);
        position: relative;
        white-space: nowrap;
        transition: color var(--transition-fast);
        letter-spacing: 0.4px;
    }
    .channel-nav a:hover {
        color: var(--c-ink);
    }
    .channel-nav a.active {
        color: var(--c-ink);
        font-weight: 600;
    }
    .channel-nav a.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 22px;
        right: 22px;
        height: 2px;
        background: var(--c-copper);
    }

    /* ========== 面包屑 ========== */
    .breadcrumb-wrap {
        border-bottom: 1px solid var(--c-border);
        background: #fff;
        padding: 10px 0;
    }
    .breadcrumb {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        font-size: 13px;
        color: var(--c-text-secondary);
    }
    .breadcrumb li {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .breadcrumb li + li::before {
        content: '/';
        color: var(--c-border);
        margin-right: 4px;
        font-size: 12px;
    }
    .breadcrumb a {
        color: var(--c-text-secondary);
    }
    .breadcrumb a:hover {
        color: var(--c-copper);
    }
    .breadcrumb .current {
        color: var(--c-ink);
        font-weight: 500;
    }

    /* ========== Hero ========== */
    .hero-media {
        position: relative;
        background: var(--c-stone);
        color: #fff;
        overflow: hidden;
        min-height: 460px;
        display: flex;
        align-items: center;
    }
    .hero-media::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.35;
        z-index: 1;
    }
    .hero-media::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.45) 60%, rgba(184, 145, 90, 0.25) 100%);
        z-index: 2;
    }
    .hero-media .hero-content {
        position: relative;
        z-index: 3;
        max-width: 720px;
        padding: 80px 0;
    }
    .hero-media .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border: 1px solid rgba(255, 255, 255, 0.35);
        color: #fff;
        padding: 6px 16px;
        border-radius: 20px;
        font-size: 13px;
        letter-spacing: 1px;
        margin-bottom: 24px;
        background: rgba(255, 255, 255, 0.08);
    }
    .hero-media .hero-badge i {
        color: var(--c-copper);
        font-size: 12px;
    }
    .hero-media h1 {
        color: #fff;
        font-size: 52px;
        margin-bottom: 18px;
    }
    .hero-media .hero-sub {
        font-size: 18px;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 30px;
        max-width: 600px;
        line-height: 1.8;
    }
    .hero-media .countdown-row {
        display: flex;
        gap: 18px;
        flex-wrap: wrap;
        align-items: center;
        margin-bottom: 26px;
    }
    .countdown-box {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 8px;
        padding: 12px 18px;
        text-align: center;
        min-width: 70px;
        backdrop-filter: blur(8px);
    }
    .countdown-box .cd-num {
        font-size: 28px;
        font-weight: 800;
        color: #fff;
        line-height: 1.1;
        letter-spacing: 1px;
    }
    .countdown-box .cd-label {
        font-size: 12px;
        color: rgba(255, 255, 255, 0.65);
        margin-top: 2px;
    }
    .hero-cta-group {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius-card);
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        border: 1px solid transparent;
        transition: background var(--transition-slow), color var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-base);
        white-space: nowrap;
    }
    .btn--primary {
        background: var(--c-ink);
        color: var(--c-warmwhite);
        border-color: var(--c-ink);
    }
    .btn--primary:hover {
        background: var(--c-copper);
        color: var(--c-ink);
        border-color: var(--c-copper);
    }
    .btn--ghost-light {
        background: transparent;
        color: #fff;
        border-color: rgba(255, 255, 255, 0.55);
    }
    .btn--ghost-light:hover {
        background: #fff;
        color: var(--c-ink);
        border-color: #fff;
    }
    .btn--outline-copper {
        background: transparent;
        color: var(--c-ink);
        border-color: var(--c-copper);
    }
    .btn--outline-copper:hover {
        background: var(--c-copper);
        color: var(--c-ink);
        border-color: var(--c-copper);
    }
    .btn--sm {
        padding: 8px 18px;
        font-size: 13px;
        border-radius: 6px;
    }

    /* ========== 通用 section ========== */
    .section {
        padding: var(--section-gap-desktop) 0;
    }
    .section--light {
        background: #fff;
    }
    .section--warm {
        background: var(--c-warmwhite);
    }
    .section--dark {
        background: var(--c-stone);
        color: #fff;
    }
    .section--dark h2, .section--dark h3 {
        color: #fff;
    }
    .section-head {
        margin-bottom: 48px;
    }
    .section-head .section-eyebrow {
        display: inline-block;
        font-size: 13px;
        letter-spacing: 2px;
        color: var(--c-copper);
        text-transform: uppercase;
        margin-bottom: 12px;
        font-weight: 600;
    }
    .section-head h2 {
        font-size: 36px;
        margin-bottom: 14px;
    }
    .section-head .section-desc {
        font-size: 16px;
        color: var(--c-text-secondary);
        max-width: 680px;
        line-height: 1.8;
    }
    .section--dark .section-desc {
        color: rgba(255, 255, 255, 0.7);
    }

    /* ========== 图库栅格 ========== */
    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .gallery-card {
        border-radius: var(--radius-large);
        overflow: hidden;
        background: #fff;
        border: 1px solid var(--c-border);
        transition: box-shadow var(--transition-base), transform var(--transition-base);
        position: relative;
        box-shadow: var(--shadow-default);
    }
    .gallery-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }
    .gallery-card .gallery-img-wrap {
        position: relative;
        overflow: hidden;
        aspect-ratio: 4 / 3;
        background: #f0ede9;
    }
    .gallery-card .gallery-img-wrap img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .gallery-card:hover .gallery-img-wrap img {
        transform: scale(1.03);
    }
    .gallery-card .gallery-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(26, 26, 26, 0.55) 0%, transparent 45%);
        display: flex;
        align-items: flex-end;
        padding: 16px;
        opacity: 0;
        transition: opacity var(--transition-base);
    }
    .gallery-card:hover .gallery-overlay {
        opacity: 1;
    }
    .gallery-overlay span {
        color: #fff;
        font-size: 13px;
        font-weight: 500;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .gallery-card .gallery-caption {
        padding: 14px 18px;
        font-size: 14px;
        color: var(--c-text-secondary);
        line-height: 1.5;
        min-height: 58px;
    }
    .gallery-card .gallery-tag {
        display: inline-block;
        font-size: 11px;
        color: var(--c-copper);
        font-weight: 600;
        letter-spacing: 0.5px;
        margin-right: 8px;
    }

    /* ========== 视频区 ========== */
    .video-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .video-card {
        border-radius: var(--radius-large);
        overflow: hidden;
        background: #fff;
        border: 1px solid var(--c-border);
        transition: box-shadow var(--transition-base), transform var(--transition-base);
        box-shadow: var(--shadow-default);
    }
    .video-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
    }
    .video-thumb {
        position: relative;
        aspect-ratio: 16 / 9;
        background: var(--c-stone);
        overflow: hidden;
        cursor: pointer;
    }
    .video-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.7;
        transition: opacity 0.3s ease;
    }
    .video-card:hover .video-thumb img {
        opacity: 0.55;
    }
    .video-thumb .play-btn {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.92);
        color: var(--c-ink);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        transition: background var(--transition-slow), color var(--transition-slow), transform var(--transition-slow);
        z-index: 2;
    }
    .video-card:hover .play-btn {
        background: var(--c-copper);
        color: #fff;
        transform: translate(-50%, -50%) scale(1.08);
    }
    .video-thumb .video-duration {
        position: absolute;
        bottom: 10px;
        right: 10px;
        background: rgba(26, 26, 26, 0.8);
        color: #fff;
        font-size: 12px;
        padding: 3px 10px;
        border-radius: 4px;
        z-index: 2;
    }
    .video-card .video-info {
        padding: 16px 20px;
    }
    .video-info h3 {
        font-size: 17px;
        margin-bottom: 8px;
        line-height: 1.45;
    }
    .video-info p {
        font-size: 14px;
        color: var(--c-text-secondary);
        margin-bottom: 0;
        line-height: 1.6;
    }

    /* ========== 下载资源 ========== */
    .download-list {
        background: #fff;
        border: 1px solid var(--c-border);
        border-radius: var(--radius-large);
        overflow: hidden;
        box-shadow: var(--shadow-default);
    }
    .download-item {
        display: flex;
        align-items: center;
        gap: 16px;
        padding: 18px 24px;
        border-bottom: 1px solid var(--c-border);
        transition: background var(--transition-fast);
    }
    .download-item:last-child {
        border-bottom: none;
    }
    .download-item:hover {
        background: #faf8f6;
    }
    .download-icon {
        width: 44px;
        height: 44px;
        border-radius: 8px;
        background: rgba(184, 145, 90, 0.12);
        color: var(--c-copper);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        flex-shrink: 0;
    }
    .download-info {
        flex: 1;
        min-width: 0;
    }
    .download-info h3 {
        font-size: 16px;
        margin-bottom: 4px;
        line-height: 1.4;
    }
    .download-info .download-meta {
        font-size: 13px;
        color: var(--c-text-secondary);
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }
    .download-info .download-meta span {
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    .download-action .btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    /* ========== 深度正文 ========== */
    .prose {
        max-width: 820px;
        margin: 0 auto;
    }
    .prose h2 {
        font-size: 28px;
        margin-top: 40px;
        margin-bottom: 16px;
    }
    .prose h2:first-child {
        margin-top: 0;
    }
    .prose h3 {
        font-size: 20px;
        margin-top: 28px;
        margin-bottom: 12px;
    }
    .prose p {
        font-size: 16px;
        line-height: 1.9;
        color: #3a3a3a;
        margin-bottom: 18px;
    }
    .prose blockquote {
        border-left: 3px solid var(--c-copper);
        padding: 16px 24px;
        margin: 24px 0;
        background: rgba(184, 145, 90, 0.06);
        border-radius: 0 8px 8px 0;
        color: var(--c-text-secondary);
        font-size: 15px;
        line-height: 1.8;
    }
    .prose ul, .prose ol {
        margin-bottom: 18px;
        padding-left: 24px;
    }
    .prose li {
        line-height: 1.85;
        margin-bottom: 8px;
        color: #3a3a3a;
    }

    /* ========== FAQ ========== */
    .accordion-wrapper {
        max-width: 820px;
        margin: 0 auto;
    }
    .accordion-item {
        border-bottom: 1px solid var(--c-border);
    }
    .accordion-item:first-child {
        border-top: 1px solid var(--c-border);
    }
    .accordion-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 8px;
        cursor: pointer;
        background: none;
        border: none;
        width: 100%;
        text-align: left;
        font-size: 16px;
        font-weight: 600;
        color: var(--c-ink);
        transition: color var(--transition-fast);
    }
    .accordion-header:hover {
        color: var(--c-copper);
    }
    .accordion-header .accordion-arrow {
        color: var(--c-copper);
        font-size: 14px;
        transition: transform var(--transition-fast);
        flex-shrink: 0;
    }
    .accordion-item.open .accordion-arrow {
        transform: rotate(180deg);
    }
    .accordion-content {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease, padding 0.25s ease;
        padding: 0 8px;
        color: var(--c-text-secondary);
        font-size: 15px;
        line-height: 1.8;
    }
    .accordion-item.open .accordion-content {
        max-height: 400px;
        padding: 0 8px 18px;
    }

    /* ========== CTA ========== */
    .cta-section {
        background: var(--c-ink);
        color: #fff;
        padding: 80px 0;
    }
    .cta-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }
    .cta-info h2 {
        color: #fff;
        font-size: 32px;
        margin-bottom: 14px;
    }
    .cta-info p {
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 30px;
        font-size: 15px;
    }
    .cta-contact-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .cta-contact-list li {
        display: flex;
        align-items: center;
        gap: 10px;
        color: rgba(255, 255, 255, 0.8);
        font-size: 14px;
        margin-bottom: 10px;
    }
    .cta-contact-list i {
        color: var(--c-copper);
        width: 18px;
        text-align: center;
    }
    .cta-form {
        background: #fff;
        border-radius: var(--radius-large);
        padding: 32px;
        color: var(--c-ink);
    }
    .cta-form .form-label {
        display: block;
        font-weight: 600;
        font-size: 14px;
        margin-bottom: 6px;
        color: var(--c-ink);
    }
    .cta-form .form-input {
        width: 100%;
        padding: 12px 16px;
        border: 1px solid var(--c-border);
        border-radius: var(--radius-card);
        background: var(--c-warmwhite);
        margin-bottom: 18px;
        font-size: 15px;
        transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        color: var(--c-ink);
    }
    .cta-form .form-input:focus {
        border-color: var(--c-copper);
        outline: none;
        box-shadow: 0 0 0 2px rgba(184, 145, 90, 0.15);
    }
    .cta-form .btn {
        width: 100%;
        padding: 14px 24px;
    }

    /* ========== 页脚 ========== */
    .site-footer {
        background: var(--c-stone);
        color: rgba(255, 255, 255, 0.85);
        padding: 64px 0 0;
        font-size: 14px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1.2fr 1.2fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }
    .footer-logo {
        font-size: 22px;
        font-weight: 800;
        letter-spacing: -0.3px;
        color: #fff;
        margin-bottom: 12px;
    }
    .footer-desc {
        color: rgba(255, 255, 255, 0.65);
        font-size: 13px;
        line-height: 1.7;
        max-width: 300px;
        margin-bottom: 0;
    }
    .footer-col h5 {
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-links li {
        margin-bottom: 8px;
    }
    .footer-links a {
        color: rgba(255, 255, 255, 0.65);
        font-size: 13px;
        transition: color var(--transition-fast);
    }
    .footer-links a:hover {
        color: var(--c-copper);
    }
    .footer-contact {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, 0.65);
        font-size: 13px;
        margin-bottom: 10px;
    }
    .footer-contact i {
        color: var(--c-copper);
        width: 16px;
        text-align: center;
    }
    .footer-sub-text {
        color: rgba(255, 255, 255, 0.65);
        font-size: 13px;
        margin-bottom: 12px;
    }
    .footer-sub-form {
        display: flex;
        gap: 8px;
    }
    .footer-sub-form input {
        flex: 1;
        padding: 10px 14px;
        border: 1px solid rgba(255, 255, 255, 0.25);
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.08);
        color: #fff;
        font-size: 13px;
        min-width: 0;
    }
    .footer-sub-form input::placeholder {
        color: rgba(255, 255, 255, 0.45);
    }
    .footer-sub-form input:focus {
        border-color: var(--c-copper);
        outline: none;
    }
    .footer-sub-form .btn {
        flex-shrink: 0;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding: 18px 0 24px;
        font-size: 12px;
        color: rgba(255, 255, 255, 0.5);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.5);
        transition: color var(--transition-fast);
    }
    .footer-bottom a:hover {
        color: var(--c-copper);
    }
    .footer-bottom .footer-sep {
        color: rgba(255, 255, 255, 0.3);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
        .site-container {
            padding-left: 24px;
            padding-right: 24px;
        }
        .hero-media h1 {
            font-size: 40px;
        }
        .gallery-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .video-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .cta-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        h1 {
            font-size: 36px;
        }
    }

    @media (max-width: 768px) {
        .brand-actions .brand-action-link span:not(.sr-only) {
            display: none;
        }
        .brand-actions {
            gap: 12px;
        }
        .hamburger-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .channel-row {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(247, 245, 242, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--c-border);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            z-index: 999;
        }
        .channel-row.menu-open {
            max-height: 400px;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
        }
        .channel-nav {
            flex-direction: column;
            align-items: stretch;
            padding: 12px 24px;
            gap: 0;
        }
        .channel-nav li + li::before {
            display: none;
        }
        .channel-nav a {
            padding: 11px 0;
            font-size: 15px;
            border-bottom: 1px solid var(--c-border);
        }
        .channel-nav li:last-child a {
            border-bottom: none;
        }
        .channel-nav a.active::after {
            display: none;
        }
        .channel-nav a.active {
            color: var(--c-copper);
        }

        .section {
            padding: var(--section-gap-mobile) 0;
        }
        .hero-media {
            min-height: 400px;
        }
        .hero-media .hero-content {
            padding: 60px 0;
        }
        .hero-media h1 {
            font-size: 32px;
        }
        .hero-media .hero-sub {
            font-size: 15px;
        }
        .countdown-box {
            min-width: 58px;
            padding: 10px 12px;
        }
        .countdown-box .cd-num {
            font-size: 22px;
        }
        .gallery-grid {
            grid-template-columns: 1fr;
        }
        .video-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        h2 {
            font-size: 26px;
        }
        .section-head h2 {
            font-size: 28px;
        }
        .download-item {
            flex-wrap: wrap;
            padding: 14px 16px;
        }
        .download-info {
            flex-basis: 100%;
            order: 1;
        }
        .download-action {
            order: 2;
            width: 100%;
        }
        .download-action .btn {
            width: 100%;
        }
    }

    @media (max-width: 520px) {
        .site-container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .hero-media h1 {
            font-size: 28px;
        }
        .hero-cta-group {
            flex-direction: column;
            gap: 10px;
        }
        .hero-cta-group .btn {
            width: 100%;
        }
        .countdown-row {
            gap: 8px;
        }
        .cta-form {
            padding: 20px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
        }
        h2 {
            font-size: 22px;
        }
        .prose h2 {
            font-size: 22px;
        }
    }

/* roulang page: category7 */
:root {
            --c-ink: #1A1A1A;
            --c-copper: #B8915A;
            --c-warmwhite: #F7F5F2;
            --c-stone: #2D2D2D;
            --c-text-primary: #1A1A1A;
            --c-text-secondary: #6B6B6B;
            --c-border: #E5E2DE;
            --c-error: #C0392B;
            --c-success: #2E7D32;
            --radius-card: 8px;
            --radius-large: 16px;
            --shadow-default: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.25s ease;
            --section-gap-desktop: 100px;
            --section-gap-mobile: 56px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text-primary);
            background-color: var(--c-warmwhite);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        a:hover, a:focus {
            color: var(--c-copper);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        .site-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }
        .site-container--narrow {
            max-width: 860px;
        }
        .row {
            max-width: 100%;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 245, 242, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-ink);
            color: var(--c-copper);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-ink);
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--c-ink);
            display: inline-block;
        }
        .logo-text a:hover {
            color: var(--c-copper);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .brand-action-link {
            font-size: 14px;
            color: var(--c-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color var(--transition-fast);
        }
        .brand-action-link:hover {
            color: var(--c-copper);
        }
        .brand-action-link i {
            font-size: 15px;
        }
        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 4px 8px;
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0;
            position: relative;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav li {
            flex-shrink: 0;
            position: relative;
        }
        .channel-nav li + li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: var(--c-border);
        }
        .channel-nav a {
            display: block;
            padding: 13px 22px;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text-secondary);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
            letter-spacing: 0.4px;
        }
        .channel-nav a:hover {
            color: var(--c-ink);
        }
        .channel-nav a.active {
            color: var(--c-ink);
            font-weight: 600;
        }
        .channel-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 22px;
            right: 22px;
            height: 2px;
            background: var(--c-copper);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 20px 0;
            border-bottom: 1px solid var(--c-border);
        }
        .breadcrumb-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav li + li::before {
            content: '/';
            color: var(--c-text-secondary);
        }
        .breadcrumb-nav a {
            color: var(--c-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--c-copper);
        }
        .breadcrumb-nav .current {
            color: var(--c-ink);
            font-weight: 600;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-card);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-stack);
            cursor: pointer;
            transition: background var(--transition-slow), color var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-base), transform var(--transition-base);
            border: none;
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }
        .btn--primary {
            background: var(--c-ink);
            color: var(--c-warmwhite);
        }
        .btn--primary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn--secondary {
            background: transparent;
            color: var(--c-ink);
            border: 1px solid var(--c-copper);
        }
        .btn--secondary:hover {
            background: var(--c-copper);
            color: var(--c-ink);
            border-color: var(--c-copper);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn--ghost {
            background: transparent;
            color: var(--c-warmwhite);
            border: 1px solid rgba(247, 245, 242, 0.6);
        }
        .btn--ghost:hover {
            background: var(--c-warmwhite);
            color: var(--c-ink);
            border-color: var(--c-warmwhite);
        }
        .btn--sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn--lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* ========== Hero（Bento风格） ========== */
        .help-hero {
            padding: 48px 0 56px;
            background: var(--c-warmwhite);
        }
        .help-hero .site-container {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
            align-items: stretch;
        }
        .help-hero-main {
            background: var(--c-ink);
            border-radius: var(--radius-large);
            padding: 48px 44px;
            color: var(--c-warmwhite);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 320px;
            position: relative;
            overflow: hidden;
        }
        .help-hero-main::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(184, 145, 90, 0.15);
            pointer-events: none;
        }
        .help-hero-main h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin: 0 0 16px;
            color: var(--c-warmwhite);
            position: relative;
            z-index: 1;
        }
        .help-hero-main p {
            font-size: 16px;
            color: rgba(247, 245, 242, 0.8);
            margin: 0 0 24px;
            max-width: 520px;
            position: relative;
            z-index: 1;
            line-height: 1.75;
        }
        .help-hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .help-hero-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .help-hero-side-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            flex: 1;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .help-hero-side-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .help-hero-side-card .side-icon {
            width: 42px;
            height: 42px;
            border-radius: 8px;
            background: var(--c-warmwhite);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-copper);
            font-size: 18px;
            flex-shrink: 0;
        }
        .help-hero-side-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--c-ink);
        }
        .help-hero-side-card p {
            font-size: 13px;
            color: var(--c-text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 搜索条 ========== */
        .help-search-section {
            padding: 0 0 48px;
        }
        .help-search-box {
            display: flex;
            gap: 0;
            align-items: center;
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .help-search-box:focus-within {
            border-color: var(--c-copper);
            box-shadow: 0 0 0 3px rgba(184, 145, 90, 0.12);
        }
        .help-search-box i {
            padding-left: 18px;
            color: var(--c-text-secondary);
            font-size: 16px;
            flex-shrink: 0;
        }
        .help-search-box input {
            flex: 1;
            border: none;
            padding: 14px 16px;
            font-size: 15px;
            color: var(--c-ink);
            background: transparent;
            min-width: 0;
        }
        .help-search-box input:focus {
            outline: none;
            box-shadow: none;
        }
        .help-search-box input::placeholder {
            color: var(--c-text-secondary);
        }
        .help-search-box .btn {
            border-radius: 0;
            margin: 0;
            flex-shrink: 0;
        }

        /* ========== 分类筛选标签 ========== */
        .help-filter-section {
            padding: 0 0 48px;
        }
        .help-filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .help-filter-tabs li {
            flex-shrink: 0;
        }
        .help-filter-tabs button {
            display: inline-block;
            padding: 8px 20px;
            border: 1px solid var(--c-border);
            border-radius: 24px;
            background: #fff;
            color: var(--c-text-secondary);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-family: var(--font-stack);
            letter-spacing: 0.3px;
        }
        .help-filter-tabs button:hover {
            border-color: var(--c-copper);
            color: var(--c-copper);
        }
        .help-filter-tabs button.active {
            background: var(--c-ink);
            color: var(--c-warmwhite);
            border-color: var(--c-ink);
        }
        .help-filter-tabs button:focus-visible {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
        }

        /* ========== FAQ 手风琴 ========== */
        .help-faq-section {
            padding: 0 0 56px;
        }
        .help-faq-section .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 8px;
        }
        .help-faq-section .section-title {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin: 0 0 32px;
            color: var(--c-ink);
            line-height: 1.25;
        }
        .faq-accordion {
            border-top: 1px solid var(--c-border);
        }
        .faq-item {
            border-bottom: 1px solid var(--c-border);
            padding: 0;
            margin: 0;
        }
        .faq-question-btn {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            padding: 20px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-ink);
            text-align: left;
            font-family: var(--font-stack);
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question-btn:hover {
            color: var(--c-copper);
        }
        .faq-question-btn .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-copper);
            transition: transform var(--transition-fast);
            font-size: 14px;
        }
        .faq-question-btn[aria-expanded="true"] .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease;
            padding: 0;
        }
        .faq-answer-panel.is-open {
            max-height: 400px;
        }
        .faq-answer-content {
            padding: 0 0 20px;
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            max-width: 760px;
        }
        .faq-answer-content p {
            margin: 0;
        }

        /* ========== 使用指南 ========== */
        .help-guide-section {
            padding: 56px 0;
            background: var(--c-ink);
            color: var(--c-warmwhite);
        }
        .help-guide-section .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 8px;
        }
        .help-guide-section .section-title {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin: 0 0 32px;
            color: var(--c-warmwhite);
            line-height: 1.25;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .guide-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(247, 245, 242, 0.15);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }
        .guide-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--c-copper);
            transform: translateY(-3px);
        }
        .guide-card .guide-num {
            font-size: 14px;
            color: var(--c-copper);
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .guide-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--c-warmwhite);
            line-height: 1.4;
        }
        .guide-card p {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 联系卡片 ========== */
        .help-contact-section {
            padding: 56px 0 72px;
        }
        .help-contact-section .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-copper);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 8px;
        }
        .help-contact-section .section-title {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin: 0 0 32px;
            color: var(--c-ink);
            line-height: 1.25;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .contact-card {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .contact-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .contact-card .contact-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--c-warmwhite);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-copper);
            font-size: 20px;
            flex-shrink: 0;
        }
        .contact-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--c-ink);
        }
        .contact-card p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .contact-card a {
            color: var(--c-copper);
            font-weight: 500;
            display: inline-block;
            margin-top: 4px;
            transition: color var(--transition-fast);
        }
        .contact-card a:hover {
            color: var(--c-ink);
        }

        /* ========== 底部 CTA ========== */
        .help-cta-section {
            padding: 0 0 72px;
        }
        .help-cta-box {
            background: var(--c-warmwhite);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-large);
            padding: 40px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .help-cta-box h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--c-ink);
        }
        .help-cta-box p {
            font-size: 15px;
            color: var(--c-text-secondary);
            margin: 0;
        }
        .help-cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-stone);
            color: var(--c-warmwhite);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--c-warmwhite);
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            line-height: 1.7;
            margin: 0 0 16px;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-warmwhite);
            margin: 0 0 14px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(247, 245, 242, 0.7);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--c-copper);
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--c-copper);
            width: 16px;
            flex-shrink: 0;
        }
        .footer-sub-text {
            font-size: 14px;
            color: rgba(247, 245, 242, 0.7);
            margin: 0 0 12px;
        }
        .footer-sub-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-sub-input-wrap {
            display: flex;
            gap: 8px;
            flex: 1;
            min-width: 0;
        }
        .footer-sub-form input {
            flex: 1;
            min-width: 0;
            padding: 10px 14px;
            border: 1px solid rgba(247, 245, 242, 0.2);
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.05);
            color: var(--c-warmwhite);
            font-size: 14px;
        }
        .footer-sub-form input::placeholder {
            color: rgba(247, 245, 242, 0.5);
        }
        .footer-sub-form input:focus {
            outline: 2px solid var(--c-copper);
            outline-offset: 2px;
            border-color: var(--c-copper);
        }
        .footer-bottom {
            border-top: 1px solid rgba(247, 245, 242, 0.12);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(247, 245, 242, 0.6);
        }
        .footer-bottom a {
            color: rgba(247, 245, 242, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--c-copper);
        }
        .footer-bottom-right {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .help-hero .site-container {
                grid-template-columns: 1fr;
            }
            .help-hero-main {
                min-height: auto;
                padding: 36px 32px;
            }
            .help-hero-main h1 {
                font-size: 34px;
            }
            .help-hero-side {
                flex-direction: row;
            }
            .help-hero-side-card {
                flex: 1;
                min-width: 0;
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .site-container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .channel-nav a {
                padding: 12px 14px;
                font-size: 14px;
            }
            .help-hero-main h1 {
                font-size: 28px;
            }
            .help-hero-side {
                flex-direction: column;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .help-cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .help-cta-actions {
                width: 100%;
            }
            .help-cta-actions .btn {
                flex: 1;
            }
            .faq-question-btn {
                font-size: 15px;
                padding: 16px 0;
            }
            .help-search-box .btn {
                padding: 12px 18px;
                font-size: 14px;
            }
            .help-hero-main {
                padding: 28px 22px;
            }
        }
        @media (max-width: 520px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-row {
                padding: 10px 0;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .brand-actions {
                gap: 12px;
            }
            .brand-action-link span {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .channel-nav {
                gap: 0;
            }
            .channel-nav a {
                padding: 10px 10px;
                font-size: 13px;
            }
            .help-hero-main h1 {
                font-size: 24px;
            }
            .help-hero-main p {
                font-size: 14px;
            }
            .help-filter-tabs button {
                padding: 6px 14px;
                font-size: 13px;
            }
            .help-faq-section .section-title,
            .help-guide-section .section-title,
            .help-contact-section .section-title {
                font-size: 24px;
            }
            .btn--lg {
                padding: 12px 24px;
                font-size: 15px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }