/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #8B5E3C;
            --color-primary-dark: #6E4529;
            --color-primary-light: #A67B5B;
            --color-accent: #C65B4A;
            --color-accent-dark: #A84A3A;
            --color-bg: #F5F0EB;
            --color-bg-card: #FEFCFA;
            --color-bg-dark: #3D2C1B;
            --color-bg-warm: #EDE4DA;
            --color-text: #3D2C1B;
            --color-text-light: #8B7D6B;
            --color-text-inverse: #F5F0EB;
            --color-border: #D4C9BD;
            --color-border-light: #E8DFD5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(61,44,27,0.06);
            --shadow-md: 0 6px 20px rgba(61,44,27,0.10);
            --shadow-lg: 0 12px 40px rgba(61,44,27,0.14);
            --shadow-xl: 0 24px 60px rgba(61,44,27,0.18);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 32px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --max-width: 1200px;
            --nav-height: 72px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 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(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        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-accent); }
        a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: var(--radius-sm); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        button:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
        input, textarea { font-family: inherit; font-size: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 10px 14px; background: var(--color-bg-card); color: var(--color-text); transition: border-color var(--transition), box-shadow var(--transition); }
        input:focus, textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,94,60,0.15); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-text); }
        h1 { font-size: clamp(2.2rem, 5.5vw, 3.8rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; }
        ::selection { background: var(--color-primary); color: #fff; }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            pointer-events: none;
            padding: 0 20px;
        }
        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 252, 248, 0.88);
            backdrop-filter: blur(16px) saturate(1.2);
            -webkit-backdrop-filter: blur(16px) saturate(1.2);
            border: 1px solid rgba(212, 201, 189, 0.35);
            border-radius: 60px;
            padding: 0 8px 0 24px;
            height: 60px;
            max-width: 820px;
            width: 100%;
            box-shadow: 0 4px 24px rgba(61, 44, 27, 0.08);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .nav-dock:hover {
            box-shadow: 0 8px 32px rgba(61, 44, 27, 0.12);
            background: rgba(255, 252, 248, 0.95);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-logo i {
            font-size: 1.4rem;
            color: var(--color-accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: 40px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-links a i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background: var(--color-primary);
            color: #fff;
        }
        .nav-links a.active i { opacity: 1; }
        .nav-links a.active { box-shadow: 0 2px 12px rgba(139,94,60,0.3); }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-cta .btn-nav {
            padding: 8px 22px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 40px;
            background: var(--color-accent);
            color: #fff;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .nav-cta .btn-nav:hover {
            background: var(--color-accent-dark);
            transform: scale(1.03);
        }
        .nav-toggle {
            display: none;
            font-size: 1.3rem;
            color: var(--color-primary-dark);
            padding: 8px 12px;
            border-radius: 40px;
            background: transparent;
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(139,94,60,0.08); }

        /* 移动端导航 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 92px;
            left: 20px;
            right: 20px;
            background: rgba(255, 252, 248, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 16px 12px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu.open { display: flex; }
        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }
        .mobile-menu a i { width: 20px; color: var(--color-primary-light); }
        .mobile-menu a:hover,
        .mobile-menu a.active { background: rgba(139,94,60,0.08); color: var(--color-primary-dark); }

        @media (max-width: 820px) {
            .site-header { top: 12px; padding: 0 12px; }
            .nav-dock { padding: 0 6px 0 16px; height: 56px; border-radius: 40px; }
            .nav-links { display: none; }
            .nav-cta .btn-nav { display: none; }
            .nav-toggle { display: flex; align-items: center; justify-content: center; }
            .nav-cta .btn-nav-mobile {
                display: flex;
                padding: 8px 18px;
                font-size: 0.8rem;
                font-weight: 600;
                border-radius: 40px;
                background: var(--color-accent);
                color: #fff;
                white-space: nowrap;
            }
        }
        @media (min-width: 821px) {
            .nav-cta .btn-nav-mobile { display: none; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #3D2C1B 0%, #5A3F2E 40%, #7A5C44 100%);
            overflow: hidden;
            padding: 120px 24px 80px;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-bg-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(198,91,74,0.15) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 20%, rgba(139,94,60,0.20) 0%, transparent 50%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            width: 100%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,252,248,0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255,252,248,0.18);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255,252,248,0.85);
            margin-bottom: 28px;
        }
        .hero-badge i { color: var(--color-accent); }
        .hero h1 {
            color: #fff;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.2);
        }
        .hero h1 span {
            background: linear-gradient(135deg, #F5C8A0, #E8A87C);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 2vw, 1.25rem);
            color: rgba(255,252,248,0.8);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-hero-primary {
            padding: 14px 40px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 20px rgba(198,91,74,0.35);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-hero-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(198,91,74,0.45);
            color: #fff;
        }
        .btn-hero-secondary {
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255,252,248,0.10);
            color: #fff;
            border: 1px solid rgba(255,252,248,0.25);
            backdrop-filter: blur(6px);
            transition: background var(--transition), transform var(--transition);
        }
        .btn-hero-secondary:hover {
            background: rgba(255,252,248,0.20);
            transform: translateY(-2px);
            color: #fff;
        }
        .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: rgba(255,252,248,0.5);
            font-size: 0.75rem;
            letter-spacing: 0.12em;
            animation: float 2.5s ease-in-out infinite;
        }
        .hero-scroll i { font-size: 1.2rem; }
        @keyframes float {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(8px); }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto var(--spacing-xl);
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--color-text-light);
            font-size: 1.05rem;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            background: rgba(198,91,74,0.08);
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 12px;
        }

        /* ===== 核心说明 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: var(--color-bg-warm);
        }
        .intro-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-image:hover img { transform: scale(1.03); }
        .intro-text h2 { margin-bottom: 16px; }
        .intro-text p { color: var(--color-text-light); margin-bottom: 12px; }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }
        .intro-feat {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
            font-weight: 500;
        }
        .intro-feat i {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(139,94,60,0.10);
            color: var(--color-primary);
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        @media (max-width: 820px) {
            .intro-grid { grid-template-columns: 1fr; gap: 32px; }
            .intro-image img { height: 260px; }
            .intro-features { grid-template-columns: 1fr; }
        }

        /* ===== 分类入口 ===== */
        .category-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .category-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card-img {
            height: 200px;
            overflow: hidden;
            background: var(--color-bg-warm);
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-card-img img { transform: scale(1.05); }
        .category-card-body {
            padding: 24px;
        }
        .category-card-body h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        .category-card-body p {
            color: var(--color-text-light);
            font-size: 0.92rem;
            margin-bottom: 16px;
        }
        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: gap var(--transition);
        }
        .category-card-link:hover { gap: 12px; color: var(--color-accent); }

        /* ===== 最新资讯列表 (CMS) ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--color-bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .news-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .news-item-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(139,94,60,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1.1rem;
        }
        .news-item-content {
            flex: 1;
            min-width: 0;
        }
        .news-item-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item-title a {
            color: var(--color-text);
        }
        .news-item-title a:hover { color: var(--color-primary); }
        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--color-text-light);
        }
        .news-item-meta .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(139,94,60,0.08);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--color-primary);
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-light);
            font-size: 1rem;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition);
        }
        .stat-card:hover { transform: translateY(-4px); }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-number span { font-size: 1.2rem; font-weight: 600; }
        .stat-label {
            font-size: 0.92rem;
            color: var(--color-text-light);
            font-weight: 500;
        }
        .stat-icon {
            font-size: 1.8rem;
            color: var(--color-accent);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        /* ===== 使用流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition);
        }
        .step-card:hover { transform: translateY(-4px); }
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(139,94,60,0.25);
        }
        .step-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
        .step-card p { color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 0; }
        .step-card .step-icon {
            font-size: 1.6rem;
            color: var(--color-primary-light);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            color: var(--color-text);
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(139,94,60,0.04); }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--color-primary-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #3D2C1B 0%, #5A3F2E 60%, #7A5C44 100%);
            border-radius: var(--radius-xl);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-content p {
            color: rgba(255,252,248,0.75);
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-cta-primary {
            padding: 14px 40px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 20px rgba(198,91,74,0.35);
            transition: background var(--transition), transform var(--transition);
        }
        .btn-cta-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-cta-secondary {
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255,252,248,0.10);
            color: #fff;
            border: 1px solid rgba(255,252,248,0.25);
            transition: background var(--transition);
        }
        .btn-cta-secondary:hover {
            background: rgba(255,252,248,0.20);
            color: #fff;
        }
        @media (max-width: 640px) {
            .cta-section { padding: 40px 20px; border-radius: var(--radius-lg); }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(245,240,235,0.7);
            padding: 48px 0 28px;
            margin-top: var(--spacing-2xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .nav-logo {
            color: var(--color-text-inverse);
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--color-text-inverse);
            font-size: 0.95rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.88rem;
            color: rgba(245,240,235,0.6);
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--color-text-inverse); }
        .footer-bottom {
            border-top: 1px solid rgba(245,240,235,0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
        }
        .footer-bottom a { color: rgba(245,240,235,0.5); }
        .footer-bottom a:hover { color: var(--color-text-inverse); }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(245,240,235,0.06);
            color: rgba(245,240,235,0.5);
            transition: background var(--transition), color var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 通用工具 ===== */
        .text-center { text-align: center; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .mb-48 { margin-bottom: 48px; }

        /* ===== 响应式微调 ===== */
        @media (max-width: 520px) {
            .section { padding: var(--spacing-xl) 0; }
            .hero { padding: 100px 16px 60px; min-height: 90vh; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 0.95rem; }
            .news-item { flex-direction: column; padding: 16px; gap: 12px; }
            .news-item-icon { width: 40px; height: 40px; font-size: 0.9rem; }
            .stat-number { font-size: 2rem; }
            .category-card-img { height: 160px; }
            .steps { gap: 20px; }
        }

        /* ===== 平滑过渡 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #b8860b;
            --primary-light: #daa520;
            --primary-dark: #8b6508;
            --accent: #cd853f;
            --accent-light: #deb887;
            --bg-body: #1a1a1a;
            --bg-card: #2a2a2a;
            --bg-card-hover: #333333;
            --bg-surface: #222222;
            --bg-nav: rgba(30, 30, 30, 0.92);
            --text-primary: #f0e6d3;
            --text-secondary: #c4b59a;
            --text-muted: #8a7e6b;
            --border-color: #3d3529;
            --border-light: #4a4032;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 30px rgba(184,134,11,0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --header-h: 76px;
        }

        /* ===== 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);
            background-image: radial-gradient(ellipse at 20% 60%, rgba(184,134,11,0.04) 0%, transparent 70%);
            min-height: 100vh;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: #f0d080; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container { padding: 0 16px; }
        }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 14px 24px;
            background: transparent;
            pointer-events: none;
        }
        .nav-dock {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 28px;
            background: var(--bg-nav);
            backdrop-filter: blur(18px) saturate(1.3);
            -webkit-backdrop-filter: blur(18px) saturate(1.3);
            border: 1px solid var(--border-color);
            border-radius: 60px;
            box-shadow: var(--shadow-md), var(--shadow-glow);
            pointer-events: auto;
            transition: var(--transition);
        }
        .nav-dock:hover { border-color: var(--border-light); box-shadow: var(--shadow-lg), var(--shadow-glow); }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 0.5px;
        }
        .nav-logo i { font-size: 1.4rem; color: var(--accent); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a i { margin-right: 6px; font-size: 0.85rem; }
        .nav-links a:hover { color: var(--text-primary); background: rgba(184,134,11,0.12); }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            box-shadow: 0 4px 16px rgba(184,134,11,0.3);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff !important;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 16px rgba(184,134,11,0.25);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-nav:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(184,134,11,0.35); background: linear-gradient(135deg, var(--primary-light), var(--accent)); }
        .btn-nav-mobile { display: none; }
        .nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.4rem; cursor: pointer; padding: 4px 8px; border-radius: 8px; transition: var(--transition); }
        .nav-toggle:hover { background: rgba(255,255,255,0.06); }

        @media (max-width: 768px) {
            .site-header { padding: 10px 12px; }
            .nav-dock { padding: 8px 16px; border-radius: 40px; }
            .nav-links { display: none; position: absolute; top: calc(100% + 12px); left: 12px; right: 12px; background: var(--bg-nav); backdrop-filter: blur(18px); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 12px; flex-direction: column; gap: 4px; box-shadow: var(--shadow-lg); }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; padding: 10px 16px; border-radius: var(--radius-sm); }
            .nav-links a i { width: 20px; }
            .btn-nav { display: none; }
            .btn-nav-mobile { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff !important; border-radius: 30px; font-weight: 600; font-size: 0.85rem; border: none; cursor: pointer; transition: var(--transition); }
            .btn-nav-mobile:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(184,134,11,0.3); }
            .nav-toggle { display: block; }
        }
        @media (max-width: 420px) {
            .nav-logo { font-size: 1.05rem; gap: 6px; }
            .nav-logo i { font-size: 1.1rem; }
            .nav-dock { padding: 6px 12px; border-radius: 32px; }
            .btn-nav-mobile { padding: 4px 12px; font-size: 0.8rem; }
        }

        /* ===== 页面主体 ===== */
        .page-main {
            padding-top: calc(var(--header-h) + 40px);
            padding-bottom: 60px;
            min-height: 70vh;
        }

        /* ===== 文章横幅 ===== */
        .article-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            background: linear-gradient(135deg, #1e1a14 0%, #2a2218 40%, #1a1510 100%);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }
        .article-banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .article-banner .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26,26,26,0.95) 0%, rgba(26,26,26,0.3) 60%, transparent 100%);
        }
        .article-banner-content {
            position: relative;
            z-index: 2;
            padding: 48px 40px 40px;
            width: 100%;
            max-width: 860px;
        }
        .article-banner .article-category {
            display: inline-block;
            padding: 4px 18px;
            background: rgba(184,134,11,0.2);
            border: 1px solid rgba(184,134,11,0.3);
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--primary-light);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.4);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        @media (max-width: 768px) {
            .article-banner { min-height: 260px; }
            .article-banner-content { padding: 32px 20px 28px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.3rem; }
            .article-banner-content { padding: 24px 16px 20px; }
        }

        /* ===== 文章布局 ===== */
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 960px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
        }

        /* ===== 文章正文 ===== */
        .article-body {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body .content p {
            margin-bottom: 1.4em;
        }
        .article-body .content h2 {
            font-size: 1.5rem;
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            color: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }
        .article-body .content h3 {
            font-size: 1.2rem;
            margin-top: 1.4em;
            margin-bottom: 0.6em;
            color: var(--accent-light);
        }
        .article-body .content ul, .article-body .content ol {
            margin-bottom: 1.4em;
            padding-left: 24px;
        }
        .article-body .content li {
            margin-bottom: 0.5em;
            list-style: disc;
            color: var(--text-secondary);
        }
        .article-body .content ol li { list-style: decimal; }
        .article-body .content a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
        .article-body .content a:hover { color: #f0d080; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(184,134,11,0.06);
            padding: 16px 24px;
            margin: 1.4em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content code {
            background: rgba(255,255,255,0.06);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--accent-light);
        }
        .article-body .content pre {
            background: #111;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.4em 0;
            border: 1px solid var(--border-color);
        }
        .article-body .content pre code { background: transparent; padding: 0; color: #e6d5b8; }

        @media (max-width: 768px) {
            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 0.98rem; }
            .article-body .content h2 { font-size: 1.25rem; }
        }
        @media (max-width: 520px) {
            .article-body { padding: 18px 14px; }
        }

        /* ===== 侧栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.04);
            transition: var(--transition);
        }
        .sidebar-list a:last-child { border-bottom: none; }
        .sidebar-list a:hover { padding-left: 6px; }
        .sidebar-list .s-thumb {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: var(--bg-surface);
            flex-shrink: 0;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .sidebar-list .s-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .sidebar-list .s-info { flex: 1; min-width: 0; }
        .sidebar-list .s-title {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list .s-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-cta {
            text-align: center;
        }
        .sidebar-cta .btn-sidebar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 16px rgba(184,134,11,0.2);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .sidebar-cta .btn-sidebar:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(184,134,11,0.35); }

        @media (max-width: 960px) {
            .article-sidebar { flex-direction: row; flex-wrap: wrap; }
            .sidebar-card { flex: 1; min-width: 240px; }
        }
        @media (max-width: 640px) {
            .sidebar-card { min-width: 100%; }
        }

        /* ===== 文章未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .not-found-box i {
            font-size: 3.6rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.4rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(184,134,11,0.3); }

        /* ===== 相关文章 ===== */
        .related-section {
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h2 i { color: var(--accent); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-light); }
        .related-card .r-thumb {
            width: 100%;
            height: 160px;
            background: var(--bg-surface);
            overflow: hidden;
        }
        .related-card .r-thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .related-card:hover .r-thumb img { transform: scale(1.05); }
        .related-card .r-info { padding: 16px 18px 18px; }
        .related-card .r-cat {
            font-size: 0.7rem;
            color: var(--primary-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .r-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover .r-title { color: var(--primary-light); }
        .related-card .r-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        @media (max-width: 768px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-card .r-thumb { height: 140px; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #111;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .nav-logo { margin-bottom: 14px; font-size: 1.2rem; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; max-width: 380px; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; letter-spacing: 0.3px; }
        .footer-col a { display: block; font-size: 0.88rem; color: var(--text-muted); padding: 5px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary-light); }
        .footer-social { display: flex; gap: 16px; }
        .footer-social a { font-size: 1.2rem; color: var(--text-muted); transition: var(--transition); }
        .footer-social a:hover { color: var(--primary-light); transform: translateY(-2px); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-brand p { max-width: 100%; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .site-footer { padding: 32px 0 20px; }
        }

        /* ===== 通用工具 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 12px; }
        .mt-2 { margin-top: 24px; }
        .mt-3 { margin-top: 40px; }
        .mb-1 { margin-bottom: 12px; }
        .mb-2 { margin-bottom: 24px; }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-body); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

        /* ===== 选中样式 ===== */
        ::selection { background: rgba(184,134,11,0.3); color: #fff; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c47a3c;
            --primary-dark: #a05e2a;
            --primary-light: #e8c99b;
            --secondary: #2d1810;
            --accent: #d4a373;
            --bg-dark: #1a0f0a;
            --bg-card: #2c1b12;
            --bg-elevated: #3d281d;
            --bg-body: #130b07;
            --text-light: #f0e3d5;
            --text-muted: #b8a393;
            --text-dim: #8a7565;
            --border-color: #5a3f2e;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.7);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-serif: Georgia, 'Times New Roman', serif;
            --container: 1200px;
            --spacing-section: 5rem;
            --spacing-block: 2.5rem;
        }

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

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-light);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header / Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0.75rem 1.5rem;
            display: flex;
            justify-content: center;
            pointer-events: none;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(26, 15, 10, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-color);
            border-radius: 60px;
            padding: 0.4rem 1.2rem 0.4rem 1.8rem;
            max-width: 1100px;
            width: 100%;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-light);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-logo i {
            color: var(--primary);
            font-size: 1.3rem;
        }
        .nav-logo:hover {
            color: var(--text-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-links a {
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-links a i {
            font-size: 0.85rem;
        }
        .nav-links a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a.active {
            color: var(--text-light);
            background: rgba(196, 122, 60, 0.2);
            border: 1px solid rgba(196, 122, 60, 0.25);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.4rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--primary);
            color: #fff;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .btn-nav:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(196, 122, 60, 0.4);
        }
        .btn-nav:active {
            transform: translateY(0);
        }

        .btn-nav-mobile {
            display: none;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.85rem;
            background: var(--primary);
            color: #fff;
        }
        .btn-nav-mobile:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-light);
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== 移动端导航抽屉 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(10, 5, 3, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 1.8rem;
            padding: 2rem;
            opacity: 0;
            transform: scale(0.96);
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }
        .mobile-drawer.open {
            display: flex;
            opacity: 1;
            transform: scale(1);
            pointer-events: auto;
        }
        .mobile-drawer a {
            font-size: 1.6rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 0.6rem 1.2rem;
            border-radius: 12px;
            transition: var(--transition);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-drawer .btn-drawer-close {
            position: absolute;
            top: 1.2rem;
            right: 1.5rem;
            font-size: 2rem;
            color: var(--text-light);
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
        }
        .mobile-drawer .btn-drawer-close:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Hero / 分类Banner ===== */
        .category-hero {
            position: relative;
            min-height: 52vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 1.5rem 4rem;
            background: linear-gradient(135deg, rgba(26, 15, 10, 0.85), rgba(44, 27, 18, 0.9)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            pointer-events: none;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-hero-content .badge {
            display: inline-block;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            background: rgba(196, 122, 60, 0.2);
            border: 1px solid rgba(196, 122, 60, 0.3);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-light);
            letter-spacing: 0.06em;
            margin-bottom: 1.2rem;
            text-transform: uppercase;
        }
        .category-hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .category-hero-content h1 span {
            color: var(--primary);
        }
        .category-hero-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .category-hero-content .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--primary);
            color: #fff;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(196, 122, 60, 0.45);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--text-light);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--accent);
            color: var(--text-light);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.6rem;
        }
        .section-title h2 i {
            color: var(--primary);
            margin-right: 0.4rem;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0.8rem auto 1.2rem;
        }

        /* ===== 指南卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1.8rem 1.5rem 1.8rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .guide-card:hover::before {
            opacity: 1;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .guide-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(196, 122, 60, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            border: 1px solid rgba(196, 122, 60, 0.2);
        }
        .guide-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.6rem;
        }
        .guide-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.2rem;
        }
        .guide-card .card-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-dim);
            border: 1px solid var(--border-color);
        }
        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            margin-top: 0.5rem;
        }
        .guide-card .card-link:hover {
            color: var(--primary-light);
        }

        /* ===== 特色内容区块（图文交错） ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            margin-top: 1rem;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-image {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-image:hover {
            box-shadow: var(--shadow-hover);
            transform: scale(1.01);
        }
        .feature-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }
        .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .feature-text h3 i {
            color: var(--primary);
            margin-right: 0.4rem;
        }
        .feature-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 1.4rem;
        }
        .feature-text .feature-list {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .feature-text .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        .feature-text .feature-list li i {
            color: var(--primary);
            font-size: 0.9rem;
            margin-top: 0.2rem;
        }

        /* ===== 步骤流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.8rem;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .step-item .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.5;
            font-family: var(--font-serif);
            line-height: 1;
            margin-bottom: 0.6rem;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .step-item .step-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: linear-gradient(135deg, rgba(44, 27, 18, 0.9), rgba(26, 15, 10, 0.95)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 4rem 3rem;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(196, 122, 60, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.8rem;
            position: relative;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 2rem;
            line-height: 1.7;
            position: relative;
        }
        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            position: relative;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 0;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .nav-logo {
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1.2rem;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-dim);
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-dim);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-social {
            display: flex;
            gap: 1rem;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dim);
            transition: var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            color: var(--primary-light);
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .feature-image img {
                height: 280px;
            }
            .category-hero-content h1 {
                font-size: 2.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3.5rem;
            }

            .site-header {
                padding: 0.5rem 1rem;
            }
            .nav-dock {
                padding: 0.3rem 1rem;
                border-radius: 40px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta .btn-nav {
                display: none;
            }
            .btn-nav-mobile {
                display: inline-flex;
            }
            .nav-toggle {
                display: block;
            }

            .category-hero {
                min-height: 44vh;
                padding: 7rem 1.2rem 3rem;
            }
            .category-hero-content h1 {
                font-size: 2rem;
            }
            .category-hero-content p {
                font-size: 1rem;
            }

            .guide-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .cta-block {
                padding: 2.5rem 1.5rem;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .category-hero-content h1 {
                font-size: 1.6rem;
            }
            .category-hero-content .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .feature-image img {
                height: 200px;
            }
            .step-item {
                padding: 1.5rem 1rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 1rem 1.2rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }