/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1b2d;
            --primary-light: #1a2d4a;
            --primary-dark: #080e1a;
            --accent: #d4a84b;
            --accent-light: #e8c46a;
            --accent-dark: #b8922e;
            --accent-gradient: linear-gradient(135deg, #d4a84b 0%, #e8c46a 50%, #b8922e 100%);
            --bg-white: #ffffff;
            --bg-light: #f8f7f4;
            --bg-gray: #f0efec;
            --bg-dark: #0a1018;
            --text-dark: #1a1a2e;
            --text-body: #3d4a5c;
            --text-muted: #8899aa;
            --text-light: #f5f5f5;
            --border: #e5e3df;
            --border-light: #f0eeeb;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 27, 45, 0.06);
            --shadow: 0 4px 24px rgba(15, 27, 45, 0.08);
            --shadow-lg: 0 12px 48px rgba(15, 27, 45, 0.12);
            --shadow-accent: 0 4px 20px rgba(212, 168, 75, 0.35);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --header-top-height: 56px;
            --nav-height: 52px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Utility ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.6;
        }

        .section-header-centered {
            text-align: center;
        }
        .section-header-centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            border-radius: 100px;
            background: var(--accent);
            color: var(--primary-dark);
            text-transform: uppercase;
        }

        .badge-outline {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
        }

        .badge-sm {
            font-size: 0.65rem;
            padding: 2px 10px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: 100px;
            background: var(--bg-light);
            color: var(--text-body);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: rgba(212, 168, 75, 0.06);
        }

        .divider {
            width: 60px;
            height: 3px;
            background: var(--accent-gradient);
            border-radius: 4px;
            margin: 16px 0 24px;
        }

        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--accent-gradient);
            color: var(--primary-dark);
            border-color: var(--accent);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.45);
            color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-accent);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(212, 168, 75, 0.08);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-dark {
            background: var(--primary);
            color: var(--text-light);
            border-color: var(--primary);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            color: var(--text-light);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.8rem;
        }

        /* ===== Header & Navigation (双层) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(15, 27, 45, 0.04);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(15, 27, 45, 0.08);
        }

        /* Top row */
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: var(--accent-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 1.1rem;
            font-weight: 800;
        }
        .logo:hover {
            color: var(--primary);
        }

        .header-top-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 100px;
            padding: 0 16px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.12);
        }
        .header-search .search-icon {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 10px;
            font-size: 0.85rem;
            color: var(--text-dark);
            width: 160px;
            outline: none;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .header-cta {
            padding: 8px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 100px;
            background: var(--accent-gradient);
            color: var(--primary-dark);
            border: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
            white-space: nowrap;
        }
        .header-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(212, 168, 75, 0.4);
            color: var(--primary-dark);
        }
        .header-cta:active {
            transform: translateY(0);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* Bottom row - Channel Tabs */
        .nav-bottom {
            border-top: 1px solid var(--border-light);
            background: var(--bg-white);
        }
        .nav-bottom-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            height: var(--nav-height);
            overflow-x: auto;
            overflow-y: hidden;
            scrollbar-width: none;
            -ms-overflow-style: none;
            gap: 4px;
        }
        .nav-bottom-inner::-webkit-scrollbar {
            display: none;
        }

        .nav-channel {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 0;
        }

        .nav-channel a {
            display: flex;
            align-items: center;
            padding: 8px 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 100px;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-channel a:hover {
            color: var(--primary);
            background: var(--bg-light);
        }
        .nav-channel a.active {
            color: var(--primary-dark);
            background: var(--accent);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(212, 168, 75, 0.25);
        }
        .nav-channel a.active:hover {
            background: var(--accent-light);
        }

        /* Spacer for fixed header */
        .header-spacer {
            height: calc(var(--header-top-height) + var(--nav-height));
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 100px 0 80px;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 45, 0.88) 0%, rgba(15, 27, 45, 0.72) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            border-radius: 100px;
            background: rgba(212, 168, 75, 0.18);
            color: var(--accent-light);
            border: 1px solid rgba(212, 168, 75, 0.25);
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: 3.25rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.15;
            letter-spacing: -0.02em;
            max-width: 720px;
            margin-bottom: 20px;
        }
        .hero h1 .highlight {
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-item .number {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(212, 168, 75, 0.2);
        }

        .card-image {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 24px;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .card-text {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .card-meta .cat {
            padding: 2px 10px;
            border-radius: 100px;
            background: var(--bg-light);
            font-weight: 500;
            color: var(--text-body);
            font-size: 0.7rem;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--accent-dark);
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* Feature card */
        .feature-card {
            text-align: center;
            padding: 40px 28px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 75, 0.2);
        }
        .feature-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--accent-dark);
            transition: all var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .step-card .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.3);
        }
        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-body);
            line-height: 1.5;
        }

        /* ===== News / List ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .news-card {
            display: flex;
            gap: 18px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: rgba(212, 168, 75, 0.15);
        }
        .news-card .news-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .news-card .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-card .news-content h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-card .news-content h3 a {
            color: var(--text-dark);
        }
        .news-card .news-content h3 a:hover {
            color: var(--accent-dark);
        }
        .news-card .news-content p {
            font-size: 0.85rem;
            color: var(--text-body);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .news-card .news-meta .cat {
            padding: 2px 10px;
            border-radius: 100px;
            background: var(--bg-light);
            font-weight: 500;
            color: var(--text-body);
        }

        .empty-news {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-light);
            border-radius: var(--radius);
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 27, 45, 0.88);
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }
        .stat-item .stat-divider {
            width: 32px;
            height: 2px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 75, 0.2);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            font-size: 0.85rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item summary:hover {
            color: var(--accent-dark);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 27, 45, 0.85);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .footer-brand .logo .logo-icon {
            background: var(--accent-gradient);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.5);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.6rem;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 32px;
            }

            .header-top {
                padding: 0 16px;
            }
            .header-search {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .header-cta {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }

            .nav-bottom-inner {
                padding: 0 16px;
                gap: 2px;
            }
            .nav-channel a {
                padding: 6px 14px;
                font-size: 0.8rem;
            }

            .header-spacer {
                height: calc(52px + var(--nav-height));
            }

            .hero {
                padding: 60px 0 56px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 32px;
                padding-top: 24px;
            }
            .hero-stat-item .number {
                font-size: 1.4rem;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }

            .news-card {
                flex-direction: column;
            }
            .news-card .news-thumb {
                width: 100%;
                height: 140px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .faq-item summary {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }

            .feature-card {
                padding: 28px 20px;
            }
            .card-body {
                padding: 18px;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .header-top-right .header-cta {
                display: none;
            }
            .header-top-right .mobile-toggle {
                display: block;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== Foundation Overrides ===== */
        .row {
            max-width: var(--max-width);
        }
        .column,
        .columns {
            padding-left: 12px;
            padding-right: 12px;
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #333333;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e0e0e0;
            --border-light: #f0f0f0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-width: 1200px;
            --header-height: 130px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--container-width);
            padding-left: 20px;
            padding-right: 20px;
        }
        .grid-x {
            margin-left: -12px;
            margin-right: -12px;
        }
        .cell {
            padding: 0 12px;
        }

        /* ===== 导航 (频道 Tabs 双层) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 20px;
            max-width: var(--container-width);
            margin: 0 auto;
            width: 100%;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 2px 10px rgba(230, 57, 70, 0.4);
        }
        .logo:hover {
            color: var(--text-white);
            opacity: 0.95;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 30px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .search-box:focus-within {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .search-box input {
            background: none;
            border: none;
            outline: none;
            color: var(--text-white);
            padding: 8px 0;
            font-size: 14px;
            min-width: 160px;
            font-family: var(--font-family);
        }
        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .search-box button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            cursor: pointer;
            padding: 6px 0 6px 10px;
            font-size: 15px;
            transition: var(--transition);
        }
        .search-box button:hover {
            color: var(--text-white);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-white);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
        }
        .header-cta:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
        }
        .nav-channel {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 6px 20px;
            max-width: var(--container-width);
            margin: 0 auto;
            width: 100%;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            background: rgba(0, 0, 0, 0.15);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .nav-channel::-webkit-scrollbar {
            display: none;
        }
        .nav-channel a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            white-space: nowrap;
            transition: var(--transition);
            background: transparent;
            border: 1px solid transparent;
        }
        .nav-channel a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.15);
        }
        .nav-channel a.active {
            color: var(--text-white);
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(230, 57, 70, 0.35);
        }
        .nav-channel a i {
            font-size: 13px;
            opacity: 0.8;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 24px;
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--text-white);
            transform: translateX(3px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--text-white);
        }

        /* ===== 通用组件 ===== */
        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 36px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary);
            color: var(--text-white);
        }
        .badge-light {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font-family);
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(230, 57, 70, 0.35);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(29, 53, 87, 0.35);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-white {
            background: var(--text-white);
            color: var(--primary);
        }
        .btn-white:hover {
            background: var(--bg-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--border-light);
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .card-body .card-meta i {
            margin-right: 4px;
        }
        .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-number.light {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        /* ===== Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1a2e 100%);
            position: relative;
            padding: 80px 0 60px;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .page-banner .banner-content h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .page-banner .banner-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .page-banner .banner-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== 板块间距 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block.bg-white {
            background: var(--bg-card);
        }
        .section-block.bg-light {
            background: var(--bg-light);
        }
        .section-block.bg-dark {
            background: var(--secondary);
            color: var(--text-white);
        }
        .section-block.bg-dark .section-title {
            color: var(--text-white);
        }
        .section-block.bg-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 流程步骤 ===== */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
            max-width: 800px;
            margin: 0 auto;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            padding: 24px 28px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-left: 4px solid var(--primary);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .step-item .step-info h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .step-item .step-info p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-item .step-info .step-detail {
            margin-top: 10px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .step-item .step-info .step-detail span {
            font-size: 13px;
            color: var(--text-light);
            background: var(--bg-light);
            padding: 3px 12px;
            border-radius: 20px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== 注册方式卡片 ===== */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .method-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .method-card .method-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 26px;
            color: var(--primary);
            transition: var(--transition);
        }
        .method-card:hover .method-icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .method-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .method-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .method-card .method-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }

        /* ===== 内容卡片列表 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-family);
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-block .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ===== 安全提示 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tip-card {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            padding: 24px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            align-items: flex-start;
            border-left: 3px solid var(--accent);
            transition: var(--transition);
        }
        .tip-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(3px);
        }
        .tip-card .tip-icon {
            font-size: 22px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .tip-card .tip-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .tip-card .tip-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 资源列表 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .resource-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            padding: 18px 22px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .resource-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .resource-item .resource-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(230, 57, 70, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .resource-item .resource-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .resource-item .resource-info p {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 120px;
            }
            .header-top {
                padding: 8px 16px;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-box input {
                min-width: 100px;
                font-size: 13px;
            }
            .header-cta {
                padding: 6px 14px;
                font-size: 13px;
            }
            .nav-channel {
                padding: 4px 12px;
                gap: 2px;
            }
            .nav-channel a {
                padding: 6px 14px;
                font-size: 13px;
            }
            .page-banner {
                padding: 60px 0 40px;
                min-height: 240px;
            }
            .page-banner .banner-content h1 {
                font-size: 26px;
            }
            .page-banner .banner-content p {
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-block {
                padding: 50px 0;
            }
            .method-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-item {
                flex-direction: column;
                padding: 20px;
            }
            .step-item .step-info .step-detail {
                flex-wrap: wrap;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block h2 {
                font-size: 22px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 18px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .mobile-toggle {
                display: block;
            }
        }

        @media (max-width: 520px) {
            :root {
                --header-height: 110px;
            }
            .header-top {
                padding: 6px 12px;
            }
            .logo {
                font-size: 16px;
                gap: 6px;
            }
            .logo .logo-icon {
                width: 26px;
                height: 26px;
                font-size: 13px;
            }
            .search-box input {
                min-width: 70px;
                font-size: 12px;
                padding: 6px 0;
            }
            .search-box {
                padding: 0 10px;
            }
            .header-cta {
                padding: 4px 10px;
                font-size: 12px;
                gap: 4px;
            }
            .header-cta span {
                display: none;
            }
            .nav-channel a {
                padding: 4px 10px;
                font-size: 12px;
            }
            .page-banner {
                padding: 40px 0 30px;
                min-height: 200px;
            }
            .page-banner .banner-content h1 {
                font-size: 22px;
            }
            .page-banner .banner-content p {
                font-size: 14px;
            }
            .page-banner .banner-tags span {
                font-size: 12px;
                padding: 4px 12px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .section-block {
                padding: 36px 0;
            }
            .card-body {
                padding: 16px;
            }
            .card-body h3 {
                font-size: 16px;
            }
            .method-card {
                padding: 24px 18px;
            }
            .method-card .method-icon {
                width: 52px;
                height: 52px;
                font-size: 22px;
            }
            .step-item {
                padding: 16px;
            }
            .step-item .step-info h4 {
                font-size: 16px;
            }
            .tip-card {
                padding: 16px;
                flex-direction: column;
                gap: 8px;
            }
            .resource-item {
                padding: 14px 16px;
                flex-direction: column;
                text-align: center;
            }
            .cta-block {
                padding: 28px 18px;
                border-radius: var(--radius-md);
            }
            .cta-block h2 {
                font-size: 20px;
            }
            .cta-block .cta-actions .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-grid {
                gap: 20px;
            }
            .footer-brand p {
                font-size: 13px;
            }
            .footer-col h4 {
                font-size: 15px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a3a5c;
            --color-primary-light: #2a5a8c;
            --color-primary-dark: #0f2440;
            --color-secondary: #d4a853;
            --color-secondary-light: #e8c47a;
            --color-secondary-dark: #b88930;
            --color-accent: #e8a838;
            --color-bg: #f5f7fa;
            --color-bg-alt: #eef1f5;
            --color-bg-dark: #1a1a2e;
            --color-text: #1a1a2e;
            --color-text-light: #6b7a8f;
            --color-text-muted: #9aa8b9;
            --color-border: #dce1e8;
            --color-border-light: #e8edf2;
            --color-white: #ffffff;
            --color-success: #2ecc71;
            --color-info: #3498db;
            --color-warning: #f39c12;
            --color-danger: #e74c3c;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
            --spacing-xs: 0.25rem;
            --spacing-sm: 0.5rem;
            --spacing-md: 1rem;
            --spacing-lg: 2rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --max-width: 1200px;
            --header-top-height: 60px;
            --nav-height: 48px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--color-primary-light); }
        a:focus-visible { outline: 2px solid var(--color-secondary); outline-offset: 2px; border-radius: 2px; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-text); }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; width: 100%; }

        /* ===== 双栏导航 ===== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-height);
            padding: 0 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.3px;
        }
        .logo:hover { color: var(--color-primary); }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-white);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border-radius: var(--radius-full);
            padding: 0 16px;
            height: 38px;
            border: 1px solid var(--color-border-light);
            transition: border var(--transition), box-shadow var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--color-secondary);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
        }
        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            padding: 0 8px;
            width: 160px;
            font-size: 0.875rem;
            color: var(--color-text);
        }
        .header-search input::placeholder { color: var(--color-text-muted); }
        .header-search i { color: var(--color-text-muted); font-size: 0.9rem; }

        .nav-channel {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: var(--nav-height);
            border-top: 1px solid var(--color-border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-channel::-webkit-scrollbar { display: none; }
        .nav-channel a {
            display: inline-flex;
            align-items: center;
            padding: 6px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-full);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-channel a:hover {
            color: var(--color-primary);
            background: var(--color-bg);
        }
        .nav-channel a.active {
            color: var(--color-white);
            background: var(--color-primary);
            font-weight: 600;
        }
        .nav-channel a.active:hover {
            background: var(--color-primary-light);
        }

        /* 移动端菜单开关 */
        .menu-toggle {
            display: none;
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--color-text);
            font-size: 1.3rem;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }
        .menu-toggle:hover {
            background: var(--color-bg);
            border-color: var(--color-border);
        }

        /* ===== 页面头部（文章页） ===== */
        .page-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: var(--spacing-lg) 0 var(--spacing-xl);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--color-text-muted); }
        .breadcrumb a:hover { color: var(--color-primary); }
        .breadcrumb .sep { color: var(--color-border); }
        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.5px;
            color: var(--color-primary-dark);
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--color-text-light);
        }
        .article-meta .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 12px;
            background: var(--color-secondary-light);
            color: var(--color-primary-dark);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-meta i { margin-right: 4px; }

        /* ===== 文章正文 ===== */
        .article-body {
            background: var(--color-white);
            padding: var(--spacing-xl) 0;
        }
        .article-content {
            max-width: 780px;
            margin: 0 auto;
        }
        .article-content .featured-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-md);
        }
        .article-content .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
        }
        .article-content .content-body p {
            margin-bottom: 1.2rem;
        }
        .article-content .content-body h2 {
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: var(--color-primary-dark);
        }
        .article-content .content-body h3 {
            font-size: 1.2rem;
            margin-top: 1.5rem;
            margin-bottom: 0.6rem;
            color: var(--color-primary);
        }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
        .article-content .content-body ul li {
            list-style: disc;
            margin-bottom: 0.4rem;
        }
        .article-content .content-body ol li {
            list-style: decimal;
            margin-bottom: 0.4rem;
        }
        .article-content .content-body a {
            color: var(--color-secondary-dark);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content .content-body a:hover {
            color: var(--color-primary);
        }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--color-secondary);
            padding: 12px 20px;
            margin: 1.5rem 0;
            background: var(--color-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-light);
        }
        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body code {
            background: var(--color-bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.9em;
        }

        /* 文章标签 */
        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--color-border-light);
            flex-wrap: wrap;
        }
        .article-tags .tag {
            display: inline-flex;
            padding: 4px 14px;
            background: var(--color-bg);
            color: var(--color-text-light);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
            transition: all var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .article-tags .tag:hover {
            background: var(--color-secondary-light);
            color: var(--color-primary-dark);
            border-color: var(--color-secondary);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: var(--spacing-md);
        }
        .article-share span {
            font-size: 0.9rem;
            color: var(--color-text-light);
            font-weight: 500;
        }
        .article-share a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-bg);
            color: var(--color-text-light);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            font-size: 0.9rem;
        }
        .article-share a:hover {
            background: var(--color-primary);
            color: var(--color-white);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            background: var(--color-bg);
            padding: var(--spacing-xl) 0;
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: var(--spacing-lg);
            color: var(--color-primary-dark);
            position: relative;
            padding-left: 16px;
        }
        .related-section .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--color-secondary);
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-border);
        }
        .related-card .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 16px 18px 18px;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h3 a {
            color: var(--color-text);
        }
        .related-card .card-body h3 a:hover {
            color: var(--color-primary);
        }
        .related-card .card-body .meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: var(--spacing-xl) 0;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,58,92,0.92) 0%, rgba(15,36,64,0.88) 100%);
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-content {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-white);
            margin-bottom: var(--spacing-sm);
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: var(--spacing-lg);
        }
        .cta-content .btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-white);
            padding: var(--spacing-xl) 0;
        }
        .faq-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: var(--spacing-lg);
            color: var(--color-primary-dark);
        }
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--color-bg-alt);
        }
        .faq-question i {
            color: var(--color-secondary);
            font-size: 0.9rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 16px;
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: var(--spacing-2xl) 0;
            max-width: 520px;
            margin: 0 auto;
        }
        .not-found-box .icon {
            font-size: 3.5rem;
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-md);
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            margin-bottom: var(--spacing-sm);
            color: var(--color-primary-dark);
        }
        .not-found-box p {
            color: var(--color-text-light);
            margin-bottom: var(--spacing-lg);
        }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-secondary);
            color: var(--color-primary-dark);
            border-color: var(--color-secondary);
        }
        .btn-primary:hover {
            background: var(--color-secondary-light);
            color: var(--color-primary-dark);
            border-color: var(--color-secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-white);
            border-color: rgba(255,255,255,0.6);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            color: var(--color-white);
            border-color: var(--color-white);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.8);
            padding: var(--spacing-xl) 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand .logo {
            color: var(--color-white);
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand .logo .logo-icon {
            background: var(--color-secondary);
            color: var(--color-primary-dark);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            margin-top: var(--spacing-sm);
        }
        .footer-col h4 {
            color: var(--color-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md) 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-header h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                height: auto;
                padding: 10px 16px;
                flex-wrap: wrap;
                gap: 8px;
            }
            .header-search input {
                width: 100px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-channel {
                padding: 0 12px;
                gap: 2px;
                height: auto;
                padding-bottom: 6px;
                padding-top: 6px;
            }
            .nav-channel a {
                padding: 5px 14px;
                font-size: 0.82rem;
            }
            .page-header {
                padding: var(--spacing-md) 0 var(--spacing-lg);
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: 0 4px;
            }
            .article-content .content-body {
                font-size: 0.98rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .cta-content p {
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-meta {
                font-size: 0.82rem;
                gap: 10px;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .header-top {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }
            .header-actions {
                justify-content: space-between;
            }
            .header-search input {
                width: 100%;
            }
            .nav-channel {
                gap: 0;
                padding: 4px 8px;
                justify-content: flex-start;
                flex-wrap: nowrap;
            }
            .nav-channel a {
                font-size: 0.75rem;
                padding: 4px 10px;
            }
            .page-header h1 {
                font-size: 1.25rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-card .card-body {
                padding: 12px 14px 14px;
            }
            .cta-content .btn-group {
                flex-direction: column;
                width: 100%;
            }
            .cta-content .btn-group .btn {
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                padding: 12px 14px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 14px 12px;
                font-size: 0.88rem;
            }
            .article-share {
                flex-wrap: wrap;
            }
            .footer-grid {
                gap: 20px;
            }
            .footer-col h4 {
                margin-bottom: var(--spacing-sm);
            }
        }

        /* ===== 公用工具 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: var(--spacing-md); }
        .mt-2 { margin-top: var(--spacing-lg); }
        .mt-3 { margin-top: var(--spacing-xl); }
        .mb-1 { margin-bottom: var(--spacing-md); }
        .mb-2 { margin-bottom: var(--spacing-lg); }
        .gap-sm { gap: 8px; }
        .gap-md { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }

        /* Foundation 覆盖 */
        .grid-container { max-width: var(--max-width); padding-left: 20px; padding-right: 20px; }
        .cell { margin-bottom: 0; }
        .grid-x { margin-left: -10px; margin-right: -10px; }
        .grid-x > .cell { padding-left: 10px; padding-right: 10px; }