/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary-900: #0f1724;
            --primary-800: #162240;
            --primary-700: #1e3a5f;
            --primary-600: #2a5298;
            --primary-500: #3b82f6;
            --primary-400: #60a5fa;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --neutral-900: #0f172a;
            --neutral-800: #1e293b;
            --neutral-700: #334155;
            --neutral-600: #475569;
            --neutral-500: #64748b;
            --neutral-400: #94a3b8;
            --neutral-300: #cbd5e1;
            --neutral-200: #e2e8f0;
            --neutral-100: #f1f5f9;
            --neutral-50: #f8fafc;
            --white: #ffffff;
            --shadow-sm: 0 1px 3px rgba(15, 23, 36, 0.08);
            --shadow-md: 0 4px 16px rgba(15, 23, 36, 0.10);
            --shadow-lg: 0 10px 40px rgba(15, 23, 36, 0.14);
            --shadow-xl: 0 20px 60px rgba(15, 23, 36, 0.18);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.25s ease;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 基础重置 ===== */
        *, *::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(--neutral-800);
            background: var(--neutral-50);
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--neutral-900); }
        h1 { font-size: clamp(2.2rem, 5.5vw, 4rem); }
        h2 { font-size: clamp(1.6rem, 3.2vw, 2.6rem); }
        h3 { font-size: clamp(1.15rem, 1.8vw, 1.5rem); }
        h4 { font-size: 1.15rem; }
        p { color: var(--neutral-600); margin-bottom: 0.75rem; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 56px 0; } }
        @media (max-width: 520px) { .section-padding { padding: 40px 0; } }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--primary-900);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--white);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo .logo-accent { color: var(--accent); }
        .logo-icon { font-size: 1.5rem; color: var(--accent); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--neutral-300);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links a i { font-size: 0.85rem; opacity: 0.7; }
        .nav-links a:hover {
            color: var(--white);
            background: rgba(255,255,255,0.08);
        }
        .nav-links a.active {
            color: var(--white);
            background: var(--primary-600);
            box-shadow: 0 2px 12px rgba(59,130,246,0.3);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary-900);
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 4px 16px rgba(245,158,11,0.35);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245,158,11,0.45);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--white);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* 移动端导航面板 */
        .mobile-nav {
            display: none;
            background: var(--primary-800);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 16px 24px 24px;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .mobile-nav.open { display: block; }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--neutral-300);
            font-weight: 500;
            transition: var(--transition);
        }
        .mobile-nav a:hover { background: rgba(255,255,255,0.06); color: var(--white); }
        .mobile-nav a.active { color: var(--white); background: var(--primary-600); }
        .mobile-nav .nav-cta-mobile {
            display: flex;
            justify-content: center;
            margin-top: 16px;
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-900);
            font-weight: 700;
            border-radius: 100px;
        }

        @media (max-width: 900px) {
            .nav-links, .nav-cta { display: none; }
            .hamburger { display: flex; }
        }
        @media (min-width: 901px) {
            .mobile-nav { display: none !important; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--primary-900);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,36,0.92) 0%, rgba(30,58,95,0.75) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            padding: 60px 0 80px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 100px;
            background: rgba(245,158,11,0.15);
            border: 1px solid rgba(245,158,11,0.25);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero-title {
            color: var(--white);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
        }
        .hero-title .highlight { color: var(--accent); }
        .hero-sub {
            font-size: 1.2rem;
            color: var(--neutral-300);
            max-width: 640px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary-900);
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 6px 24px rgba(245,158,11,0.35);
            transition: var(--transition);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245,158,11,0.45);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--white);
            border: 2px solid rgba(255,255,255,0.25);
            transition: var(--transition);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245,158,11,0.08);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
        }
        .hero-stat-item .num span { color: var(--accent); }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--neutral-400);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .hero { min-height: 70vh; }
            .hero-content { padding: 40px 0 60px; }
            .hero-sub { font-size: 1rem; }
            .hero-stats { gap: 20px 32px; }
            .hero-stat-item .num { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero-stats { flex-direction: column; gap: 16px; }
        }

        /* ===== 板块通用 ===== */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            border-radius: 100px;
            background: rgba(59,130,246,0.08);
            color: var(--primary-600);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .section-label i { font-size: 0.7rem; }
        .section-title {
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--neutral-900);
        }
        .section-desc {
            font-size: 1.1rem;
            color: var(--neutral-500);
            max-width: 640px;
            margin: 0 auto 48px;
            text-align: center;
            line-height: 1.7;
        }
        .text-center { text-align: center; }
        .bg-white { background: var(--white); }
        .bg-light { background: var(--neutral-50); }
        .bg-dark { background: var(--primary-900); }
        .text-white { color: var(--white); }
        .text-white h2, .text-white h3, .text-white p { color: var(--white); }
        .text-white .section-label { background: rgba(255,255,255,0.1); color: var(--accent-light); }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body { padding: 20px 24px 24px; }
        .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.3px;
            background: rgba(245,158,11,0.12);
            color: var(--accent-dark);
            margin-bottom: 10px;
        }
        .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--neutral-900);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--neutral-500);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--neutral-400);
        }
        .card-meta i { font-size: 0.7rem; margin-right: 4px; }

        /* ===== 分类入口卡片 ===== */
        .cat-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            height: 100%;
        }
        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .cat-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .cat-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15,23,36,0.7) 0%, transparent 60%);
            z-index: 1;
        }
        .cat-card-body {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            z-index: 2;
        }
        .cat-card-body h3 { color: var(--white); font-weight: 700; margin-bottom: 6px; }
        .cat-card-body p { color: rgba(255,255,255,0.8); font-size: 0.85rem; margin-bottom: 0; }
        .cat-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: 10px;
            transition: var(--transition);
        }
        .cat-card-link:hover { gap: 12px; color: var(--accent-light); }

        /* ===== 网格 ===== */
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        @media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 18px; } }

        /* ===== 优势/数据 ===== */
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .stat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .stat-card .icon {
            font-size: 2.2rem;
            color: var(--primary-500);
            margin-bottom: 16px;
        }
        .stat-card .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary-700);
            line-height: 1.2;
        }
        .stat-card .num span { color: var(--accent); }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--neutral-500);
            font-weight: 500;
            margin-top: 6px;
        }

        /* ===== 流程 ===== */
        .step-card {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            align-items: flex-start;
        }
        .step-card:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
        .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
            color: var(--white);
            font-weight: 800;
            font-size: 1.2rem;
        }
        .step-content h4 { font-weight: 700; margin-bottom: 6px; color: var(--neutral-900); }
        .step-content p { font-size: 0.9rem; color: var(--neutral-500); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--neutral-200);
            padding: 20px 0;
        }
        .faq-item:last-child { border-bottom: none; }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--neutral-800);
            padding: 4px 0;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary-600); }
        .faq-question i {
            font-size: 0.85rem;
            transition: var(--transition);
            color: var(--neutral-400);
        }
        .faq-question.open i { transform: rotate(180deg); color: var(--primary-500); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--neutral-600);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 400px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-900);
            position: relative;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 0;
        }
        .cta-content h2 { color: var(--white); font-weight: 800; margin-bottom: 16px; }
        .cta-content p { color: var(--neutral-300); font-size: 1.1rem; max-width: 560px; margin: 0 auto 32px; }
        .cta-content .btn-primary { font-size: 1.05rem; padding: 16px 44px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-800);
            color: var(--neutral-300);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo { margin-bottom: 16px; font-size: 1.1rem; }
        .footer-brand p { font-size: 0.9rem; color: var(--neutral-400); max-width: 320px; }
        .footer-col h4 { color: var(--white); font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            color: var(--neutral-400);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--neutral-500);
        }
        .footer-bottom a { color: var(--neutral-400); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-socials { display: flex; gap: 12px; }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: var(--neutral-300);
            transition: var(--transition);
            font-size: 1rem;
        }
        .footer-socials a:hover { background: var(--accent); color: var(--primary-900); }

        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            color: var(--neutral-400);
        }
        .empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
        .empty-state p { font-size: 1rem; }

        /* ===== 其他工具类 ===== */
        .gap-4 { gap: 16px; }
        .gap-6 { gap: 24px; }
        .mt-8 { margin-top: 32px; }
        .mb-8 { margin-bottom: 32px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }
        .w-full { width: 100%; }

        /* ===== 响应式补丁 ===== */
        @media (max-width: 768px) {
            .section-desc { font-size: 1rem; margin-bottom: 32px; }
            .hero-title { font-size: clamp(1.8rem, 7vw, 2.8rem); }
            .hero-stat-item .num { font-size: 1.4rem; }
            .stat-card .num { font-size: 2rem; }
        }
        @media (max-width: 520px) {
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline { width: 100%; justify-content: center; }
            .logo { font-size: 1rem; }
            .cta-content { padding: 48px 0; }
            .cta-content .btn-primary { width: 100%; justify-content: center; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-lighter: #4a8abf;
            --primary-dark: #0f2440;
            --accent: #f0a030;
            --accent-light: #f5b84a;
            --accent-dark: #d48a20;
            --bg-body: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-section-alt: #eef2f7;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-white: #f0f4f8;
            --border-light: #e2e8f0;
            --border-mid: #c8d4e0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.14);
            --transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
        }
        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px; line-height: 1.7; color: var(--text-primary); background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button, input, select, textarea { font-family: inherit; font-size: 1rem; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }
        /* ===== Header / Nav ===== */
        .site-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 0 24px; position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 20px rgba(0,0,0,0.25);
        }
        .header-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.35rem; font-weight: 700; letter-spacing: 0.5px; }
        .logo-icon { font-size: 1.7rem; color: var(--accent); }
        .logo-accent { color: var(--accent); }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a {
            display: flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: 40px;
            color: rgba(255,255,255,0.75); font-size: 0.92rem; font-weight: 500; transition: var(--transition);
            background: transparent; border: 1px solid transparent;
        }
        .nav-links a i { font-size: 0.95rem; }
        .nav-links a:hover { color: #fff; background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.15); }
        .nav-links a.active {
            color: #fff; background: var(--accent); border-color: var(--accent); box-shadow: 0 4px 14px rgba(240,160,48,0.35);
        }
        .nav-links a.active i { color: #fff; }
        .nav-cta {
            background: var(--accent); color: #fff !important; border-radius: 40px; padding: 10px 24px !important;
            font-weight: 600; border: none; box-shadow: 0 4px 14px rgba(240,160,48,0.3);
        }
        .nav-cta:hover { background: var(--accent-light) !important; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(240,160,48,0.4); }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
        .hamburger span { width: 26px; height: 3px; background: #fff; border-radius: 4px; transition: var(--transition); }
        @media (max-width: 768px) {
            .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
                background: var(--primary-dark); padding: 16px 20px; gap: 8px; box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; padding: 12px 18px; border-radius: 10px; }
            .hamburger { display: flex; }
        }
        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 60px 0 50px; position: relative; overflow: hidden;
        }
        .page-banner::before {
            content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.10; mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 { color: #fff; font-size: 2.4rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.5px; }
        .page-banner p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 640px; line-height: 1.7; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.6); font-size: 0.88rem; margin-bottom: 18px; }
        .breadcrumb a { color: rgba(255,255,255,0.7); }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .sep { color: rgba(255,255,255,0.35); }
        @media (max-width: 768px) {
            .page-banner { padding: 40px 0 34px; }
            .page-banner h1 { font-size: 1.7rem; }
            .page-banner p { font-size: 0.95rem; }
        }
        /* ===== Section共用 ===== */
        .section { padding: 70px 0; }
        .section-alt { background: var(--bg-section-alt); }
        .section-title { text-align: center; margin-bottom: 12px; font-size: 2rem; font-weight: 800; letter-spacing: -0.3px; }
        .section-subtitle { text-align: center; color: var(--text-secondary); font-size: 1.05rem; max-width: 620px; margin: 0 auto 44px; }
        .section-title i { color: var(--accent); margin-right: 8px; }
        @media (max-width: 768px) { .section { padding: 48px 0; } .section-title { font-size: 1.5rem; } .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; } }
        /* ===== 新闻卡片 ===== */
        .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .news-card {
            background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden;
            box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-light);
        }
        .news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--border-mid); }
        .news-card .card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .news-card .card-body { padding: 20px 22px 24px; }
        .news-card .tag { display: inline-block; padding: 3px 12px; border-radius: 40px; font-size: 0.78rem; font-weight: 600; background: var(--accent); color: #fff; margin-bottom: 10px; }
        .news-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
        .news-card h3 a { color: var(--text-primary); }
        .news-card h3 a:hover { color: var(--primary-light); }
        .news-card .excerpt { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card .meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; font-size: 0.82rem; color: var(--text-muted); }
        .news-card .meta i { margin-right: 4px; }
        @media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; } }
        /* ===== 特色卡片 ===== */
        .feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .feature-card {
            background: var(--bg-card); border-radius: var(--radius-md); padding: 32px 22px 28px; text-align: center;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: var(--transition);
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .feature-card .icon-circle {
            width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 1.6rem; color: #fff;
        }
        .feature-card h4 { font-size: 1.05rem; margin-bottom: 6px; }
        .feature-card p { font-size: 0.88rem; color: var(--text-secondary); }
        @media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .feature-grid { grid-template-columns: 1fr; } }
        /* ===== 数据统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
        .stat-item { text-align: center; padding: 24px 12px; background: rgba(255,255,255,0.06); border-radius: var(--radius-md); backdrop-filter: blur(4px); border: 1px solid rgba(255,255,255,0.08); }
        .stat-number { font-size: 2.4rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
        .stat-label { color: rgba(255,255,255,0.75); font-size: 0.92rem; margin-top: 4px; }
        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2,1fr); } .stat-number { font-size: 1.8rem; } }
        /* ===== 热门排行 ===== */
        .rank-list { display: flex; flex-direction: column; gap: 12px; }
        .rank-item {
            display: flex; align-items: center; gap: 16px; padding: 14px 20px; background: var(--bg-card);
            border-radius: var(--radius-sm); border: 1px solid var(--border-light); transition: var(--transition);
        }
        .rank-item:hover { background: #fafcff; border-color: var(--border-mid); }
        .rank-num { width: 32px; height: 32px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; flex-shrink: 0; }
        .rank-item:nth-child(1) .rank-num { background: var(--accent); }
        .rank-item:nth-child(2) .rank-num { background: #b8860b; }
        .rank-item:nth-child(3) .rank-num { background: #8a8a8a; }
        .rank-info { flex: 1; }
        .rank-info h4 { font-size: 0.98rem; font-weight: 600; }
        .rank-info .rank-meta { font-size: 0.82rem; color: var(--text-muted); }
        .rank-hot { font-size: 0.82rem; color: var(--accent); font-weight: 600; white-space: nowrap; }
        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border-light); overflow: hidden; }
        .faq-q {
            padding: 16px 24px; font-weight: 600; font-size: 1rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
            background: var(--bg-card); transition: var(--transition); color: var(--text-primary);
        }
        .faq-q:hover { background: #fafcff; }
        .faq-q i { transition: var(--transition); color: var(--text-muted); }
        .faq-q.open i { transform: rotate(180deg); color: var(--accent); }
        .faq-a {
            padding: 0 24px; max-height: 0; overflow: hidden; transition: var(--transition);
            color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7;
        }
        .faq-a.open { padding: 0 24px 18px; max-height: 300px; }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 60px 0; text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.08; mix-blend-mode: overlay; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.05rem; max-width: 560px; margin: 0 auto 28px; }
        .cta-btn { display: inline-block; background: var(--accent); color: #fff; padding: 16px 44px; border-radius: 60px; font-weight: 700; font-size: 1.1rem; box-shadow: 0 8px 30px rgba(240,160,48,0.35); transition: var(--transition); }
        .cta-btn:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(240,160,48,0.45); }
        /* ===== Footer ===== */
        .site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 56px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 40px; }
        .footer-brand .logo { margin-bottom: 14px; font-size: 1.2rem; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 340px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 14px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 4px 0; }
        .footer-col a:hover { color: var(--accent); }
        .footer-socials { display: flex; gap: 12px; }
        .footer-socials a { width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); font-size: 1.1rem; transition: var(--transition); padding: 0; }
        .footer-socials a:hover { background: var(--accent); color: #fff; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); margin-top: 40px; padding: 20px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.84rem; color: rgba(255,255,255,0.4); }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }
        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; align-items: center; text-align: center; } }
        /* ===== 分页 ===== */
        .pagination { display: flex; justify-content: center; gap: 8px; margin-top: 44px; }
        .pagination a, .pagination span { display: flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; border-radius: 10px; font-size: 0.9rem; font-weight: 500; border: 1px solid var(--border-light); background: var(--bg-card); color: var(--text-primary); transition: var(--transition); }
        .pagination a:hover { border-color: var(--primary-light); color: var(--primary); }
        .pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
        .pagination .disabled { opacity: 0.4; pointer-events: none; }
        /* ===== 标签云 ===== */
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
        .tag-cloud a { padding: 6px 18px; border-radius: 40px; background: var(--bg-card); border: 1px solid var(--border-light); font-size: 0.88rem; color: var(--text-secondary); transition: var(--transition); }
        .tag-cloud a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        /* ===== 辅助 ===== */
        .text-accent { color: var(--accent); }
        .bg-accent { background: var(--accent); }
        .gap-2 { gap: 8px; }
        .gap-4 { gap: 16px; }
        .mt-2 { margin-top: 8px; }
        .mt-4 { margin-top: 16px; }
        .mb-4 { margin-bottom: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .text-center { text-align: center; }
        .fade-in { animation: fadeUp 0.6s ease both; }
        @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --accent: #ef4444;
            --accent-dark: #dc2626;
            --bg-body: #f1f5f9;
            --bg-surface: #f8fafc;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --radius: 0.875rem;
            --radius-sm: 0.625rem;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-hover: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .container-narrow {
            max-width: 820px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            color: #0f172a;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2rem;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: var(--bg-surface);
            color: var(--text-muted);
            border: 1px solid var(--border-light);
            transition: all 0.2s;
        }
        .badge-primary {
            background: #eff6ff;
            color: #1d4ed8;
            border-color: #bfdbfe;
        }
        .badge-accent {
            background: #fef2f2;
            color: #dc2626;
            border-color: #fecaca;
        }
        .badge:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-card);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.625rem 1.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.25s;
            background: var(--bg-surface);
            color: var(--text-body);
            border: 1px solid var(--border-light);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 0.4rem 1rem;
            font-size: 0.8rem;
        }
        .btn-lg {
            padding: 0.875rem 2.25rem;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }
        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .divider {
            border: none;
            height: 1px;
            background: var(--border-light);
            margin: 2.5rem 0;
        }
        .tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            font-size: 0.7rem;
            font-weight: 500;
            border-radius: 9999px;
            background: #e2e8f0;
            color: #475569;
            transition: all 0.2s;
        }
        .tag:hover {
            background: var(--primary);
            color: #fff;
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-light);
            color: #0f172a;
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.75rem;
            margin-bottom: 0.75rem;
            color: #1e293b;
        }
        .article-content p {
            margin-bottom: 1.25rem;
            font-size: 1rem;
            line-height: 1.8;
            color: #334155;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
            color: #334155;
        }
        .article-content li {
            margin-bottom: 0.4rem;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: #f1f5f9;
            padding: 0.75rem 1.25rem;
            margin: 1.5rem 0;
            border-radius: 0 0.5rem 0.5rem 0;
            color: #334155;
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-card);
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--primary-dark);
        }
        .article-content .wp-caption {
            max-width: 100%;
            text-align: center;
            margin: 1.5rem 0;
        }
        .article-content .wp-caption-text {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }
        .article-content th,
        .article-content td {
            padding: 0.6rem 1rem;
            border: 1px solid var(--border-light);
            text-align: left;
        }
        .article-content th {
            background: #f1f5f9;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .container,
            .container-narrow {
                padding: 0 1rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .article-content h3 {
                font-size: 1.05rem;
            }
            .article-content p {
                font-size: 0.95rem;
            }
            .btn-lg {
                padding: 0.7rem 1.5rem;
                font-size: 0.95rem;
            }
            .card-body {
                padding: 1rem 1.15rem 1.25rem;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.15rem;
            }
            .badge {
                font-size: 0.65rem;
                padding: 0.2rem 0.6rem;
            }
            .article-content p {
                font-size: 0.9rem;
            }
        }
        .nav-blur {
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .hero-overlay {
            position: relative;
        }
        .hero-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.3) 100%);
            z-index: 1;
            border-radius: inherit;
        }
        .hero-overlay>* {
            position: relative;
            z-index: 2;
        }
        .animate-fade-up {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeUp 0.6s ease forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }
        .progress-bar {
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            transition: width 0.5s ease;
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .mobile-menu-open {
            overflow: hidden;
        }
        .footer a:hover {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .related-card .card {
            height: 100%;
        }
        .related-card .card-body {
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body .btn {
            margin-top: auto;
            align-self: flex-start;
        }
        .article-header-bg {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
        }
        .article-header-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #f1f5f9;
            color: #475569;
            transition: all 0.25s;
            border: 1px solid var(--border-light);
        }
        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .author-card {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem;
            background: #f8fafc;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
        }
        .author-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        @media (max-width: 640px) {
            .author-card {
                flex-direction: column;
                text-align: center;
            }
            .share-buttons {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #fae1e3;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-input: #16213e;
            --text: #f1f1f6;
            --text-light: #a8a8b8;
            --text-muted: #6c6c80;
            --border: #2a2a40;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 48px rgba(230, 57, 70, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            transition: var(--transition);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* ===== Header & Nav ===== */
        .site-header {
            background: rgba(15, 15, 26, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 20px;
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-icon {
            color: var(--primary);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px rgba(230, 57, 70, 0.4));
        }
        .logo span {
            background: linear-gradient(135deg, var(--text) 60%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo-accent {
            color: var(--primary);
            -webkit-text-fill-color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 10px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-links a i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border);
        }
        .nav-links a:hover i {
            color: var(--primary);
        }
        .nav-links a.active {
            color: #fff;
            background: rgba(230, 57, 70, 0.15);
            border-color: rgba(230, 57, 70, 0.3);
        }
        .nav-links a.active i {
            color: var(--primary);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            border: none !important;
            padding: 8px 22px !important;
            border-radius: 10px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .nav-cta i {
            color: #fff !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.4) !important;
            background: linear-gradient(135deg, var(--primary-dark), #a4161a) !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        /* ===== Hero Banner ===== */
        .category-hero {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #0f0f1a 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(230, 57, 70, 0.08), transparent 70%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, 0.12);
            border: 1px solid rgba(230, 57, 70, 0.25);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.82rem;
            color: var(--primary);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fff 50%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat strong {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .hero-stat strong i {
            color: var(--primary);
            font-size: 1.2rem;
            margin-right: 6px;
        }
        .hero-stat span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* ===== Section ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-header p {
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1rem;
        }
        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.1);
            border: 1px solid rgba(230, 57, 70, 0.2);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        /* ===== Guide Steps ===== */
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .step-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .step-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);
        }
        .step-card:hover::before {
            opacity: 1;
        }
        .step-card:hover {
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.3);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            border: 2px solid rgba(230, 57, 70, 0.2);
            transition: var(--transition);
        }
        .step-card:hover .step-number {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.05);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .step-card .step-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        /* ===== Guide Cards ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .guide-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-4px);
            border-color: rgba(230, 57, 70, 0.25);
            box-shadow: var(--shadow-hover);
        }
        .guide-card-img {
            height: 180px;
            background: var(--bg-input);
            position: relative;
            overflow: hidden;
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.03);
        }
        .guide-card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 15, 26, 0.8), transparent 60%);
        }
        .guide-card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .guide-card-body {
            padding: 22px 20px 24px;
        }
        .guide-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .guide-card-body h3 a:hover {
            color: var(--primary);
        }
        .guide-card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .guide-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .guide-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .guide-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 14px;
        }
        .guide-tags span {
            display: inline-block;
            background: rgba(69, 123, 157, 0.1);
            border: 1px solid rgba(69, 123, 157, 0.2);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            color: var(--secondary-light);
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 500;
            font-size: 1rem;
            gap: 16px;
            user-select: none;
            background: none;
            border: none;
            color: var(--text);
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question .arrow {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), #0f1a2e);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-box {
            text-align: center;
            padding: 60px 20px;
        }
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .cta-box p {
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            outline: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.05);
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 0.88rem;
        }
        /* ===== Footer (reuse) ===== */
        .site-footer {
            background: #0a0a14;
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            color: var(--text);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-socials {
            display: flex;
            gap: 10px;
        }
        .footer-socials a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 1rem;
            padding: 0;
        }
        .footer-socials a:hover {
            background: rgba(230, 57, 70, 0.1);
            border-color: rgba(230, 57, 70, 0.3);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 99;
                align-items: stretch;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: 8px;
                justify-content: flex-start;
            }
            .nav-links a.nav-cta {
                margin-top: 6px;
                justify-content: center;
            }
            .category-hero {
                padding: 50px 0 44px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat strong {
                font-size: 1.4rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .guide-steps {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                gap: 12px;
            }
            .logo {
                font-size: 1.05rem;
            }
            .logo-icon {
                font-size: 1.2rem;
            }
            .category-hero h1 {
                font-size: 1.45rem;
            }
            .guide-steps {
                grid-template-columns: 1fr;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
        }