/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #1a2d4a;
            --secondary: #d4a84b;
            --secondary-light: #e8c46a;
            --secondary-dark: #b8892f;
            --bg-warm: #f7f4ef;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a111f;
            --text-dark: #0f1a2e;
            --text-body: #2d3748;
            --text-muted: #718096;
            --text-light: #a0aec0;
            --text-on-primary: #f7fafc;
            --border-light: #e2e8f0;
            --border-focus: #d4a84b;
            --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, 0.10), 0 4px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-warm);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }
        h1 {
            font-size: clamp(2.4rem, 5.5vw, 4.2rem);
        }
        h2 {
            font-size: clamp(1.8rem, 3.6vw, 2.8rem);
            margin-bottom: 12px;
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.6rem);
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin: 8px auto 0;
        }
        .section-header--left {
            text-align: left;
        }
        .section-header--left .section-subtitle {
            margin: 8px 0 0;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
            background: transparent;
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--text-dark);
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: var(--text-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 75, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-on-primary);
            border-color: rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-body);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: var(--bg-warm);
            color: var(--primary);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        .btn .fa-arrow-right {
            transition: transform var(--transition);
        }
        .btn:hover .fa-arrow-right {
            transform: translateX(4px);
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 100px;
            background: var(--bg-warm);
            color: var(--text-muted);
            letter-spacing: 0.3px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .badge-secondary {
            background: rgba(212, 168, 75, 0.15);
            color: var(--secondary-dark);
            border-color: rgba(212, 168, 75, 0.25);
        }
        .badge-primary {
            background: rgba(15, 26, 46, 0.08);
            color: var(--primary);
            border-color: rgba(15, 26, 46, 0.12);
        }
        .badge:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 75, 0.20);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            display: block;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-text {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-link {
            text-decoration: none;
            color: inherit;
        }
        .card-link:hover .card-title {
            color: var(--secondary-dark);
        }

        /* ===== Grid ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }
        .section-sm {
            padding: 48px 0;
        }

        /* ===== Navigation (分屏联动) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 26, 46, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-on-primary);
            letter-spacing: -0.5px;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .site-logo span {
            background: linear-gradient(135deg, #f7fafc 40%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-logo:hover {
            color: var(--text-on-primary);
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .site-nav a {
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 0.92rem;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .site-nav a:hover {
            color: var(--text-on-primary);
        }
        .site-nav a:hover::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--secondary);
        }
        .site-nav a.active::after {
            width: 100%;
            background: var(--secondary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 100px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .nav-search:focus-within {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--secondary);
        }
        .nav-search i {
            color: rgba(255, 255, 255, 0.40);
            font-size: 0.85rem;
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 8px 10px;
            color: var(--text-on-primary);
            font-size: 0.85rem;
            width: 140px;
            outline: none;
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-on-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }

        /* ===== Hero (分屏布局) ===== */
        .hero {
            padding-top: var(--nav-height);
            min-height: 90vh;
            display: flex;
            align-items: stretch;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .hero-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            width: 100%;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 80px 48px 80px 0;
            color: var(--text-on-primary);
            position: relative;
            z-index: 2;
        }
        .hero-content .badge {
            align-self: flex-start;
            margin-bottom: 20px;
            background: rgba(212, 168, 75, 0.18);
            color: var(--secondary-light);
            border-color: rgba(212, 168, 75, 0.25);
        }
        .hero-content h1 {
            color: var(--text-on-primary);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 20px;
        }
        .hero-content h1 .highlight {
            color: var(--secondary);
        }
        .hero-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.70);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 60vh;
            overflow: hidden;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }
        .hero-visual .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.60) 20%, transparent 70%);
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }
        .hero-stats-float {
            position: relative;
            z-index: 3;
            display: flex;
            gap: 32px;
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(12px);
            padding: 20px 32px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stats-float .stat-item {
            text-align: center;
        }
        .hero-stats-float .stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .hero-stats-float .stat-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.60);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* ===== Features / 核心说明 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 75, 0.20);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(212, 168, 75, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--secondary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--secondary);
            color: var(--text-dark);
            transform: scale(1.05);
        }
        .feature-card h3 {
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== Category Entry ===== */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover img {
            transform: scale(1.06);
        }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 26, 46, 0.80) 20%, transparent 70%);
        }
        .category-card .cat-info {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            color: var(--text-on-primary);
            width: 100%;
        }
        .category-card .cat-info h3 {
            color: var(--text-on-primary);
            font-size: 1.4rem;
            margin-bottom: 4px;
        }
        .category-card .cat-info p {
            color: rgba(255, 255, 255, 0.70);
            font-size: 0.88rem;
        }
        .category-card .cat-info .btn {
            margin-top: 12px;
        }

        /* ===== Latest Posts / 资讯列表 ===== */
        .post-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .post-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .post-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 168, 75, 0.15);
        }
        .post-item .thumb {
            width: 120px;
            min-height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .post-item .info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .post-item .info .cat-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--secondary-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
        }
        .post-item .info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .info h4 a {
            color: var(--text-dark);
        }
        .post-item .info h4 a:hover {
            color: var(--secondary-dark);
        }
        .post-item .info .excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .info .meta {
            font-size: 0.78rem;
            color: var(--text-light);
            margin-top: 6px;
            display: flex;
            gap: 12px;
        }
        .post-item .info .meta i {
            margin-right: 4px;
        }

        /* ===== Stats / 数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-card .icon {
            font-size: 1.8rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 75, 0.20);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(212, 168, 75, 0.04);
        }
        .faq-question i {
            color: var(--secondary);
            transition: transform var(--transition);
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            color: var(--text-on-primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 168, 75, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            color: var(--text-on-primary);
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.70);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
            position: relative;
        }
        .cta-section .btn {
            position: relative;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.70);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.50);
            max-width: 300px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: var(--text-on-primary);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.50);
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--text-dark);
            transform: translateY(-2px);
        }

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 36px 20px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }
        .empty-state i {
            font-size: 2rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-split {
                grid-template-columns: 1fr;
            }
            .hero-content {
                padding: 60px 24px 40px;
            }
            .hero-visual {
                min-height: 40vh;
                border-radius: 0;
            }
            .hero-visual img,
            .hero-visual .overlay {
                border-radius: 0;
            }
            .hero-stats-float {
                padding: 16px 24px;
                gap: 24px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .post-list {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .site-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 26, 46, 0.98);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .site-nav.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .hero-content {
                padding: 40px 20px 32px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 0.95rem;
            }
            .hero-visual {
                min-height: 30vh;
            }
            .hero-stats-float {
                gap: 16px;
                padding: 14px 18px;
            }
            .hero-stats-float .stat-number {
                font-size: 1.2rem;
            }
            .section {
                padding: 48px 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .number {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 40px 20px;
                border-radius: var(--radius-md);
            }
            .post-item {
                flex-direction: column;
                padding: 12px;
            }
            .post-item .thumb {
                width: 100%;
                height: 140px;
            }
            .category-card {
                aspect-ratio: 16 / 10;
            }
            .container {
                padding: 0 16px;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .number {
                font-size: 1.4rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .w-full {
            width: 100%;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #D4AF37;
            --primary-dark: #B8960F;
            --primary-light: #F0D68A;
            --primary-gradient: linear-gradient(135deg, #D4AF37 0%, #F0D68A 50%, #D4AF37 100%);
            --secondary: #1A1A2E;
            --secondary-light: #2D2D44;
            --accent: #E85D04;
            --bg-body: #F8F6F0;
            --bg-card: #FFFFFF;
            --bg-alt: #F0ECE4;
            --bg-dark: #1A1A2E;
            --text-primary: #1A1A2E;
            --text-secondary: #5A5A72;
            --text-light: #8A8AA0;
            --text-white: #FFFFFF;
            --text-muted: #B0B0C0;
            --border-color: #E8E4DC;
            --border-light: #F0ECE4;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.06);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.08);
            --shadow-glow: 0 0 30px rgba(212,175,55,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: var(--header-height);
        }
        a { color: var(--primary-dark); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
        }
        .site-logo i { color: var(--primary); font-size: 1.6rem; }
        .site-logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .site-nav { display: flex; align-items: center; gap: 8px; }
        .site-nav a {
            padding: 8px 20px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .site-nav a:hover {
            color: var(--secondary);
            background: rgba(212,175,55,0.08);
        }
        .site-nav a.active {
            color: var(--secondary);
            background: var(--primary-gradient);
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(212,175,55,0.25);
        }
        .nav-actions { display: flex; align-items: center; gap: 16px; }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 100px;
            padding: 0 16px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(212,175,55,0.15); }
        .nav-search i { color: var(--text-light); font-size: 0.9rem; }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 8px 10px;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 160px;
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-toggle { display: none; background: none; font-size: 1.4rem; color: var(--text-primary); cursor: pointer; padding: 4px; }

        /* ===== Hero / Banner 内页横幅 ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--secondary);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.4rem;
            color: var(--text-white);
            max-width: 800px;
            margin: 0 auto 16px;
            line-height: 1.35;
        }
        .page-banner .meta-line {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
        }
        .page-banner .meta-line span { display: flex; align-items: center; gap: 6px; }
        .page-banner .meta-line i { color: var(--primary); }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        .breadcrumb a { color: rgba(255,255,255,0.7); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 0.7rem; color: rgba(255,255,255,0.4); }

        /* ===== Main Content ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body .content p { margin-bottom: 1.6em; }
        .article-body .content h2 {
            font-size: 1.5rem;
            margin: 2em 0 0.8em;
            padding-bottom: 0.4em;
            border-bottom: 2px solid var(--primary-light);
        }
        .article-body .content h3 {
            font-size: 1.2rem;
            margin: 1.6em 0 0.6em;
            color: var(--secondary);
        }
        .article-body .content ul, .article-body .content ol {
            padding-left: 1.6em;
            margin-bottom: 1.6em;
        }
        .article-body .content li { margin-bottom: 0.5em; list-style: disc; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-alt);
            padding: 16px 24px;
            margin: 1.6em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content img {
            margin: 1.6em auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .article-body .content a { color: var(--primary-dark); text-decoration: underline; }
        .article-body .content a:hover { color: var(--accent); }
        .article-body .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-body .tag-list .tag {
            padding: 4px 16px;
            background: var(--bg-alt);
            border-radius: 100px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .article-body .tag-list .tag:hover { background: var(--primary-light); color: var(--secondary); }

        /* ===== Sidebar ===== */
        .article-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-card .related-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .sidebar-card .related-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-card .related-item img {
            width: 70px;
            height: 70px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-card .related-item .info { flex: 1; }
        .sidebar-card .related-item .info a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-card .related-item .info a:hover { color: var(--primary-dark); }
        .sidebar-card .related-item .info .date {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 4px;
            display: block;
        }
        .sidebar-cta {
            background: var(--primary-gradient);
            border: none;
            text-align: center;
            color: var(--secondary);
        }
        .sidebar-cta h3 { color: var(--secondary); justify-content: center; }
        .sidebar-cta p { font-size: 0.9rem; color: var(--secondary); opacity: 0.8; margin-bottom: 16px; }
        .sidebar-cta .btn {
            background: var(--secondary);
            color: var(--text-white);
            padding: 10px 28px;
            border-radius: 100px;
            font-weight: 600;
            display: inline-block;
            transition: var(--transition);
        }
        .sidebar-cta .btn:hover { background: #2D2D44; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.15); }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: var(--primary-gradient);
            color: var(--secondary);
            box-shadow: 0 4px 15px rgba(212,175,55,0.2);
        }
        .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(212,175,55,0.3); color: var(--secondary); }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary-dark);
            box-shadow: none;
        }
        .btn-outline:hover { background: var(--primary-gradient); color: var(--secondary); border-color: transparent; }

        /* ===== 文章不存在 ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-wrap i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .not-found-wrap h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-wrap .btn { display: inline-flex; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 60px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .site-footer .site-logo { color: var(--text-white); margin-bottom: 16px; }
        .site-footer .site-logo span { -webkit-text-fill-color: var(--text-white); background: none; }
        .site-footer .site-logo i { color: var(--primary); }
        .site-footer p { font-size: 0.9rem; color: rgba(255,255,255,0.6); line-height: 1.7; }
        .site-footer .footer-social { display: flex; gap: 12px; }
        .site-footer .footer-social a {
            width: 40px; height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex; align-items: center; justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover { background: var(--primary); color: var(--secondary); }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            padding: 5px 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .site-footer .footer-col a i { width: 20px; }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.45); }
        .site-footer .footer-bottom a:hover { color: var(--primary); }
        .mt-16 { margin-top: 16px; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { position: static; }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .site-nav { display: none; }
            .nav-toggle { display: block; }
            .site-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0; right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .site-nav.open a { width: 100%; }
            .nav-search input { width: 100px; }
            .page-banner { padding: 60px 0 40px; }
            .page-banner h1 { font-size: 1.6rem; }
            .article-body { padding: 24px; }
            .article-body .content { font-size: 1rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.3rem; }
            .page-banner .meta-line { font-size: 0.85rem; gap: 12px; }
            .article-body { padding: 16px; border-radius: var(--radius-md); }
            .article-body .content h2 { font-size: 1.2rem; }
            .sidebar-card { padding: 20px; }
            .sidebar-card .related-item img { width: 56px; height: 56px; }
            .site-footer { padding: 40px 0 0; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c8a44e;
            --primary-dark: #a8862e;
            --primary-light: #e8d49a;
            --secondary: #1a1a2e;
            --secondary-light: #2a2a4e;
            --accent: #e85d3a;
            --bg-body: #f8f6f2;
            --bg-card: #ffffff;
            --bg-dark: #0f0f1a;
            --bg-section-alt: #f0ede6;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-light: #8a8a8a;
            --text-inverse: #f5f0e8;
            --border-color: #e0dbd0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-gold: 0 8px 32px rgba(200, 164, 78, 0.20);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 32px;
            --spacing-xl: 64px;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 头部 & 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(200, 164, 78, 0.15);
            transition: background var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-inverse);
            letter-spacing: 1px;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .site-logo:hover {
            color: var(--primary-light);
        }
        .site-logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .site-nav a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 240, 232, 0.75);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .site-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .site-nav a:hover {
            color: var(--text-inverse);
        }
        .site-nav a:hover::after {
            width: 100%;
        }
        .site-nav a.active {
            color: var(--primary-light);
        }
        .site-nav a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 6px 16px 6px 14px;
            border: 1px solid rgba(200, 164, 78, 0.15);
            transition: border-color var(--transition), background var(--transition);
        }
        .nav-search i {
            color: var(--text-light);
            font-size: 14px;
            margin-right: 8px;
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text-inverse);
            font-size: 13px;
            width: 130px;
            padding: 4px 0;
        }
        .nav-search input::placeholder {
            color: rgba(245, 240, 232, 0.4);
        }
        .nav-search input:focus {
            outline: none;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.12);
        }

        .nav-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-inverse);
            padding: 4px;
        }

        /* ===== 分类 Banner ===== */
        .category-banner {
            margin-top: var(--header-height);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary-light) 60%, #1a1a30 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-blend-mode: overlay;
            position: relative;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 164, 78, 0.10) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .category-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.5);
            margin-bottom: 24px;
        }
        .category-banner .breadcrumb a {
            color: rgba(245, 240, 232, 0.6);
        }
        .category-banner .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .category-banner .breadcrumb i {
            font-size: 10px;
            color: rgba(245, 240, 232, 0.3);
        }
        .category-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-inverse);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .category-banner h1 i {
            color: var(--primary);
            margin-right: 12px;
        }
        .category-banner .banner-desc {
            font-size: 18px;
            color: rgba(245, 240, 232, 0.7);
            max-width: 680px;
            line-height: 1.8;
        }
        .category-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
            justify-content: center;
        }
        .category-banner .banner-tags span {
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(200, 164, 78, 0.15);
            color: var(--primary-light);
            border: 1px solid rgba(200, 164, 78, 0.20);
        }

        /* ===== 分类介绍板块 ===== */
        .section-intro {
            padding: 80px 0 60px;
            background: var(--bg-body);
        }
        .section-intro .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .intro-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .intro-content h2 span {
            color: var(--primary-dark);
        }
        .intro-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .intro-content .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }
        .intro-content .intro-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .intro-content .intro-features li i {
            color: var(--primary);
            font-size: 16px;
            width: 20px;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-image .image-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            box-shadow: var(--shadow-md);
        }

        /* ===== 攻略文章卡片列表 ===== */
        .section-articles {
            padding: 60px 0 80px;
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 12px;
            background: rgba(200, 164, 78, 0.12);
            padding: 4px 18px;
            border-radius: 20px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.25;
        }
        .section-header h2 span {
            color: var(--primary-dark);
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-light);
            margin-top: 12px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border-color);
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .article-card .card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .article-card:hover .card-image img {
            transform: scale(1.06);
        }
        .article-card .card-image .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .article-card .card-body {
            padding: 24px 22px 22px;
        }
        .article-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .article-card .card-body .card-meta i {
            margin-right: 4px;
            font-size: 11px;
        }
        .article-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .article-card:hover .card-body h3 {
            color: var(--primary-dark);
        }
        .article-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .article-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
        }
        .article-card .card-body .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .article-card .card-body .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 热门技巧板块 ===== */
        .section-tips {
            padding: 80px 0;
            background: var(--bg-body);
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .tip-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            padding: 28px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .tip-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .tip-card .tip-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(200, 164, 78, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
        }
        .tip-card .tip-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .tip-card .tip-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 数据统计板块 ===== */
        .section-stats {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary-light) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            color: var(--text-inverse);
            text-align: center;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-item .stat-number i {
            font-size: 32px;
            margin-right: 8px;
            color: var(--primary);
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(245, 240, 232, 0.7);
        }

        /* ===== FAQ 板块 ===== */
        .section-faq {
            padding: 80px 0;
            background: var(--bg-section-alt);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: background var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item summary:hover {
            background: rgba(200, 164, 78, 0.04);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            margin-top: 0;
        }

        /* ===== CTA 板块 ===== */
        .section-cta {
            padding: 80px 0;
            background: var(--bg-body);
            text-align: center;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 164, 78, 0.10) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(245, 240, 232, 0.7);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-box .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(200, 164, 78, 0.30);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            background: transparent;
            color: var(--text-inverse);
            border: 2px solid rgba(245, 240, 232, 0.30);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--primary-light);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(245, 240, 232, 0.7);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(200, 164, 78, 0.10);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand .site-logo {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(245, 240, 232, 0.55);
            max-width: 280px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 14px;
        }
        .site-footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(245, 240, 232, 0.6);
            font-size: 16px;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.55);
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer .footer-col a i {
            width: 20px;
            margin-right: 4px;
            color: var(--primary);
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.4);
        }
        .site-footer .footer-bottom a {
            color: var(--primary-light);
        }
        .site-footer .footer-bottom a:hover {
            text-decoration: underline;
        }

        .mt-16 {
            margin-top: 16px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .section-intro .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .intro-image img {
                height: 300px;
            }
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .site-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px 24px;
                transform: translateY(-110%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.4s ease;
                border-bottom: 1px solid rgba(200, 164, 78, 0.10);
                box-shadow: var(--shadow-lg);
                pointer-events: none;
            }
            .site-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .site-nav a {
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }
            .site-nav a:last-child {
                border-bottom: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .nav-actions {
                gap: 8px;
            }

            .category-banner {
                padding: 70px 0 56px;
            }
            .category-banner h1 {
                font-size: 30px;
            }
            .category-banner .banner-desc {
                font-size: 15px;
            }

            .section-intro {
                padding: 48px 0 36px;
            }
            .intro-content h2 {
                font-size: 26px;
            }
            .intro-content .intro-features {
                grid-template-columns: 1fr;
            }
            .intro-image img {
                height: 220px;
            }

            .section-articles {
                padding: 40px 0 56px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .article-card .card-image {
                height: 180px;
            }

            .section-tips {
                padding: 48px 0;
            }
            .tip-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 20px 18px;
            }

            .section-stats {
                padding: 48px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }

            .section-faq {
                padding: 48px 0;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-item .faq-answer {
                font-size: 14px;
                padding: 0 18px 16px;
            }

            .section-cta {
                padding: 48px 0;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 12px 28px;
                font-size: 14px;
            }

            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 24px;
            }
            .category-banner .banner-desc {
                font-size: 14px;
            }
            .category-banner .banner-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
            .intro-content h2 {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .cta-box h2 {
                font-size: 20px;
            }
            .cta-box p {
                font-size: 14px;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .article-card .card-body {
                padding: 18px 16px 16px;
            }
            .article-card .card-body h3 {
                font-size: 16px;
            }
            .tip-card .tip-content h4 {
                font-size: 15px;
            }
        }