/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a2a4a;
        --primary-light: #2a4a7a;
        --primary-dark: #0f1b33;
        --accent: #c9a84c;
        --accent-light: #e8d48b;
        --accent-dark: #a88a2e;
        --bg: #f8f6f2;
        --bg-alt: #ede8df;
        --bg-card: #ffffff;
        --bg-dark: #1a2a4a;
        --text: #2d2d2d;
        --text-light: #6b6b6b;
        --text-on-dark: #f0ece4;
        --text-muted: #99948c;
        --border: #d4cfc6;
        --border-light: #e8e3da;
        --radius-sm: 8px;
        --radius: 12px;
        --radius-lg: 20px;
        --shadow: 0 4px 20px rgba(0,0,0,0.06);
        --shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
        --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
        --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
        --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        --max-width: 1200px;
        --nav-height: 72px;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
    }
    a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
    button { cursor: pointer; background: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; margin-bottom: 0.75rem; }
    h3 { font-size: 1.4rem; }
    p { margin-bottom: 1rem; color: var(--text-light); }
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 12px 28px;
        border-radius: var(--radius);
        font-weight: 600;
        font-size: 1rem;
        transition: var(--transition);
        border: 2px solid transparent;
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--accent);
        color: var(--primary-dark);
        border-color: var(--accent);
    }
    .btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .btn-outline {
        background: transparent;
        color: var(--text-on-dark);
        border-color: var(--text-on-dark);
    }
    .btn-outline:hover { background: var(--accent); border-color: var(--accent); color: var(--primary-dark); transform: translateY(-2px); }
    .btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: var(--radius-lg); }
    .btn-sm { padding: 8px 18px; font-size: 0.875rem; border-radius: var(--radius-sm); }

    /* ===== 标签 / 徽章 ===== */
    .badge {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        background: var(--accent-light);
        color: var(--primary-dark);
        letter-spacing: 0.02em;
    }
    .badge-primary { background: var(--primary); color: var(--text-on-dark); }
    .badge-light { background: var(--bg-alt); color: var(--text-light); }

    /* ===== 卡片 ===== */
    .card {
        background: var(--bg-card);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        overflow: hidden;
        transition: var(--transition);
    }
    .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
    .card-img { width: 100%; height: 200px; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; }
    .card-body { padding: 24px; }
    .card-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
    .card-text { font-size: 0.95rem; color: var(--text-light); margin-bottom: 16px; }
    .card-meta { display: flex; gap: 16px; font-size: 0.85rem; color: var(--text-muted); align-items: center; flex-wrap: wrap; }

    /* ===== 导航 ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(26,42,74,0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        height: var(--nav-height);
        border-bottom: 1px solid rgba(255,255,255,0.06);
        transition: var(--transition);
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .logo {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--text-on-dark);
        letter-spacing: 0.02em;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .logo i { color: var(--accent); font-size: 1.6rem; }
    .logo span { color: var(--accent); }
    .logo:hover { color: var(--accent); }

    .nav-list {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-list a {
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        color: var(--text-on-dark);
        font-weight: 500;
        font-size: 0.95rem;
        transition: var(--transition);
        position: relative;
    }
    .nav-list a:hover { background: rgba(255,255,255,0.10); color: var(--accent-light); }
    .nav-list a.active {
        background: rgba(201,168,76,0.18);
        color: var(--accent);
    }
    .nav-list a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        background: var(--accent);
        border-radius: 2px;
    }
    .nav-cta .btn { padding: 8px 20px; font-size: 0.9rem; }

    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
        background: none;
        border: none;
        cursor: pointer;
    }
    .hamburger span {
        width: 26px;
        height: 2px;
        background: var(--text-on-dark);
        border-radius: 2px;
        transition: var(--transition);
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 85vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 120px 24px 80px;
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
        overflow: hidden;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        opacity: 0.20;
        mix-blend-mode: overlay;
    }
    .hero::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 120px;
        background: var(--bg);
        clip-path: ellipse(70% 100% at 50% 100%);
    }
    .hero-content { position: relative; z-index: 2; max-width: 800px; }
    .hero-badge {
        display: inline-block;
        padding: 6px 20px;
        border-radius: 20px;
        background: rgba(201,168,76,0.20);
        color: var(--accent-light);
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 24px;
        border: 1px solid rgba(201,168,76,0.25);
    }
    .hero h1 {
        font-size: 3.4rem;
        color: var(--text-on-dark);
        margin-bottom: 20px;
        line-height: 1.2;
    }
    .hero h1 span { color: var(--accent); }
    .hero p {
        font-size: 1.2rem;
        color: rgba(240,236,228,0.85);
        max-width: 600px;
        margin: 0 auto 36px;
        line-height: 1.7;
    }
    .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

    /* ===== 板块通用 ===== */
    .section { padding: 80px 0; }
    .section-alt { background: var(--bg-alt); }
    .section-dark { background: var(--bg-dark); color: var(--text-on-dark); }
    .section-title {
        text-align: center;
        margin-bottom: 16px;
    }
    .section-title h2 { font-size: 2.2rem; }
    .section-title p { font-size: 1.1rem; max-width: 600px; margin: 0 auto 8px; }
    .section-divider {
        width: 60px;
        height: 4px;
        background: var(--accent);
        border-radius: 4px;
        margin: 16px auto 40px;
    }

    /* ===== 网格 ===== */
    .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
    .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

    /* ===== 特色卡片 ===== */
    .feature-card {
        text-align: center;
        padding: 40px 28px;
        background: var(--bg-card);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid var(--border-light);
    }
    .feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
    .feature-icon {
        width: 70px;
        height: 70px;
        border-radius: 50%;
        background: var(--bg-alt);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
        font-size: 1.8rem;
        color: var(--accent);
        transition: var(--transition);
    }
    .feature-card:hover .feature-icon { background: var(--accent); color: var(--primary-dark); }
    .feature-card h3 { margin-bottom: 10px; }
    .feature-card p { font-size: 0.95rem; margin-bottom: 0; }

    /* ===== 分类入口 ===== */
    .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
    .category-item {
        position: relative;
        border-radius: var(--radius);
        overflow: hidden;
        height: 200px;
        display: flex;
        align-items: flex-end;
        padding: 24px;
        background-size: cover;
        background-position: center;
        transition: var(--transition);
        cursor: pointer;
    }
    .category-item::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(26,42,74,0.85) 0%, transparent 60%);
        transition: var(--transition);
    }
    .category-item:hover::before { background: linear-gradient(to top, rgba(26,42,74,0.92) 0%, rgba(26,42,74,0.20) 70%); }
    .category-item:hover { transform: scale(1.02); box-shadow: var(--shadow-hover); }
    .category-item .cat-label {
        position: relative;
        z-index: 2;
        color: var(--text-on-dark);
        font-weight: 700;
        font-size: 1.2rem;
    }
    .category-item .cat-count {
        position: relative;
        z-index: 2;
        color: var(--accent-light);
        font-size: 0.85rem;
        margin-top: 4px;
    }

    /* ===== 资讯列表 ===== */
    .post-list { display: flex; flex-direction: column; gap: 20px; }
    .post-item {
        display: flex;
        gap: 24px;
        background: var(--bg-card);
        border-radius: var(--radius);
        padding: 20px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid var(--border-light);
    }
    .post-item:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); }
    .post-thumb { width: 180px; min-height: 130px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
    .post-info { flex: 1; display: flex; flex-direction: column; justify-content: center; }
    .post-info h3 { font-size: 1.15rem; margin-bottom: 6px; }
    .post-info h3 a { color: var(--primary); }
    .post-info h3 a:hover { color: var(--accent); }
    .post-excerpt { font-size: 0.92rem; color: var(--text-light); margin-bottom: 10px; line-height: 1.6; }
    .post-meta { display: flex; gap: 16px; font-size: 0.82rem; color: var(--text-muted); align-items: center; flex-wrap: wrap; }
    .post-meta .badge { font-size: 0.75rem; padding: 2px 12px; }

    /* ===== 数据统计 ===== */
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .stat-item { text-align: center; padding: 32px 16px; background: rgba(255,255,255,0.06); border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.08); }
    .stat-number { font-size: 2.8rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
    .stat-label { font-size: 0.95rem; color: rgba(240,236,228,0.75); margin-top: 8px; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
        background: var(--bg-card);
        border-radius: var(--radius);
        padding: 20px 28px;
        box-shadow: var(--shadow);
        border: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .faq-item:hover { box-shadow: var(--shadow-hover); }
    .faq-question {
        font-weight: 700;
        font-size: 1.05rem;
        color: var(--primary);
        display: flex;
        align-items: center;
        gap: 12px;
        cursor: pointer;
    }
    .faq-question i { color: var(--accent); font-size: 1.1rem; width: 24px; }
    .faq-answer {
        margin-top: 12px;
        padding-left: 36px;
        color: var(--text-light);
        font-size: 0.95rem;
        line-height: 1.7;
        border-left: 3px solid var(--accent-light);
        padding-left: 20px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        padding: 80px 24px;
        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: 0.08;
        mix-blend-mode: overlay;
    }
    .cta-section .container { position: relative; z-index: 2; }
    .cta-section h2 { color: var(--text-on-dark); font-size: 2.2rem; margin-bottom: 16px; }
    .cta-section p { color: rgba(240,236,228,0.8); max-width: 600px; margin: 0 auto 32px; font-size: 1.1rem; }
    .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--primary-dark);
        color: var(--text-on-dark);
        padding: 60px 0 30px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
    .footer-brand .logo { margin-bottom: 16px; }
    .footer-brand p { font-size: 0.9rem; color: rgba(240,236,228,0.65); max-width: 320px; }
    .footer-col h4 { color: var(--text-on-dark); font-size: 1rem; margin-bottom: 16px; font-weight: 700; }
    .footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: rgba(240,236,228,0.65); }
    .footer-col a:hover { color: var(--accent); }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06);
        margin-top: 40px;
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.85rem;
        color: rgba(240,236,228,0.5);
    }
    .footer-bottom a { color: rgba(240,236,228,0.6); }
    .footer-bottom a:hover { color: var(--accent); }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255,255,255,0.06);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-on-dark);
        transition: var(--transition);
    }
    .footer-social a:hover { background: var(--accent); color: var(--primary-dark); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
        .stats-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 768px) {
        .hamburger { display: flex; }
        .nav-list {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--primary-dark);
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
            transform: translateY(-120%);
            opacity: 0;
            transition: var(--transition);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: var(--shadow-lg);
        }
        .nav-list.open { transform: translateY(0); opacity: 1; }
        .nav-list a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
        .nav-list a.active::after { display: none; }
        .nav-list a.active { background: rgba(201,168,76,0.15); }
        .nav-cta { display: none; }

        .hero h1 { font-size: 2.2rem; }
        .hero p { font-size: 1rem; }
        .hero { min-height: 70vh; padding: 100px 20px 60px; }

        h2 { font-size: 1.6rem; }
        .section { padding: 60px 0; }

        .grid-2, .grid-3 { grid-template-columns: 1fr; }
        .grid-4 { grid-template-columns: 1fr 1fr; }

        .post-item { flex-direction: column; }
        .post-thumb { width: 100%; height: 200px; }

        .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        .stat-number { font-size: 2rem; }

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

        .cta-section h2 { font-size: 1.6rem; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .hero h1 { font-size: 1.8rem; }
        .grid-4 { grid-template-columns: 1fr; }
        .stats-grid { grid-template-columns: 1fr 1fr; }
        .hero-actions .btn { width: 100%; justify-content: center; }
        .cta-actions .btn { width: 100%; justify-content: center; }
        .faq-item { padding: 16px 18px; }
        .card-body { padding: 18px; }
        .feature-card { padding: 28px 18px; }
    }

    /* ===== 工具类 ===== */
    .text-center { text-align: center; }
    .mt-16 { margin-top: 16px; }
    .mt-32 { margin-top: 32px; }
    .mb-16 { margin-bottom: 16px; }
    .mb-32 { margin-bottom: 32px; }
    .gap-16 { gap: 16px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .empty-state {
        text-align: center;
        padding: 40px 20px;
        color: var(--text-muted);
        background: var(--bg-alt);
        border-radius: var(--radius);
        font-size: 1rem;
    }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --primary-bg: #f0edff;
            --secondary: #fd79a8;
            --secondary-dark: #e84393;
            --accent: #00cec9;
            --accent-dark: #00b894;
            --bg: #f8f9ff;
            --bg-alt: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2d3436;
            --text-light: #636e72;
            --text-lighter: #b2bec3;
            --text-white: #ffffff;
            --border: #e0e0f0;
            --border-light: #f0f0f8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 20px rgba(108, 92, 231, 0.10);
            --shadow-lg: 0 12px 40px rgba(108, 92, 231, 0.15);
            --shadow-hover: 0 8px 30px rgba(108, 92, 231, 0.18);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --section-gap: 90px;
        }

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

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        .section {
            padding: var(--section-gap) 0;
        }

        .section-title {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 48px auto;
            line-height: 1.6;
        }

        .text-primary {
            color: var(--primary);
        }

        .text-accent {
            color: var(--accent);
        }

        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            transition: var(--transition);
        }

        .badge-hot {
            background: #ffe0e6;
            color: #e84393;
        }

        .badge-new {
            background: #e0f7f4;
            color: #00b894;
        }

        .badge-top {
            background: #fff3d6;
            color: #e17055;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            background: transparent;
            color: var(--text);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.30);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(108, 92, 231, 0.20);
        }

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

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 206, 201, 0.30);
            color: #fff;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            color: var(--text);
        }

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

        .nav-list>li>a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }

        .nav-list>li>a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }

        .nav-list>li>a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }

        .nav-list>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-cta .btn {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .nav-cta .btn i {
            font-size: 0.8rem;
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text);
            border-radius: 4px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* ===== Banner ===== */
        .page-banner {
            padding-top: calc(var(--nav-height) + 20px);
            min-height: 360px;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--primary-bg) 0%, #e8e5ff 50%, #fce4ec 100%);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 60px 24px;
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner p {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 28px auto;
            line-height: 1.7;
        }

        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .banner-tags .badge {
            padding: 6px 18px;
            font-size: 0.85rem;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(108, 92, 231, 0.12);
        }

        /* ===== Guide Categories ===== */
        .guide-categories {
            background: var(--bg-alt);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .category-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px auto;
            font-size: 1.6rem;
            color: #fff;
            transition: var(--transition);
        }

        .category-card:nth-child(1) .icon-wrap {
            background: linear-gradient(135deg, #6c5ce7, #a29bfe);
        }
        .category-card:nth-child(2) .icon-wrap {
            background: linear-gradient(135deg, #fd79a8, #fdcb6e);
        }
        .category-card:nth-child(3) .icon-wrap {
            background: linear-gradient(135deg, #00cec9, #00b894);
        }
        .category-card:nth-child(4) .icon-wrap {
            background: linear-gradient(135deg, #e17055, #f8a5c2);
        }

        .category-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }

        .category-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        .category-card .btn {
            margin-top: 16px;
        }

        /* ===== Popular Guides ===== */
        .popular-guides {
            background: var(--bg);
        }

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

        .guide-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .guide-card .card-image {
            height: 200px;
            background: var(--primary-bg);
            position: relative;
            overflow: hidden;
        }

        .guide-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .guide-card:hover .card-image img {
            transform: scale(1.05);
        }

        .guide-card .card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .guide-card .card-body {
            padding: 22px 24px 24px;
        }

        .guide-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-lighter);
            margin-bottom: 10px;
        }

        .guide-card .card-body .meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .guide-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .guide-card .card-body h3 a {
            color: var(--text);
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary);
        }

        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .guide-card .card-body .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .guide-card .card-body .tags .badge {
            font-size: 0.75rem;
            padding: 2px 12px;
        }

        /* ===== Expert Tips ===== */
        .expert-tips {
            background: var(--bg-alt);
        }

        .tips-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .tips-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            height: 420px;
        }

        .tips-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .tips-content h2 {
            font-size: 2rem;
            margin-bottom: 18px;
        }

        .tips-content .tip-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .tips-content .tip-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 20px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }

        .tips-content .tip-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }

        .tips-content .tip-item .num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 36px;
            line-height: 1.2;
        }

        .tips-content .tip-item .text h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .tips-content .tip-item .text p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== Update Timeline ===== */
        .update-timeline {
            background: var(--bg);
        }

        .timeline {
            max-width: 720px;
            margin: 0 auto;
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary-light), var(--secondary));
            border-radius: 4px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 36px 30px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 4px solid var(--primary-bg);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .timeline-item .date {
            font-size: 0.82rem;
            color: var(--text-lighter);
            display: block;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-alt);
        }

        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
            gap: 16px;
        }

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

        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .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;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px 24px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 80px 0;
            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;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2.4rem;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 32px auto;
            line-height: 1.6;
        }

        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }

        .cta-section .btn:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.20);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 14px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand .logo span {
            color: var(--primary-light);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            opacity: 0.7;
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 14px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.6;
        }

        .footer-bottom a {
            color: var(--primary-light);
        }
        .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guides-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .tips-layout {
                grid-template-columns: 1fr;
            }
            .tips-image {
                height: 300px;
            }
            .page-banner h1 {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 60px;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-list>li>a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1rem;
            }

            .nav-list>li>a.active::after {
                display: none;
            }

            .nav-cta {
                margin-top: 8px;
            }

            .page-banner {
                min-height: 280px;
            }

            .page-banner h1 {
                font-size: 1.9rem;
            }

            .page-banner p {
                font-size: 1rem;
            }

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

            .category-card {
                padding: 24px 16px;
            }

            .guides-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .timeline {
                padding-left: 30px;
            }

            .timeline-item {
                padding: 0 0 28px 20px;
            }

            .timeline-item::before {
                left: -24px;
                width: 12px;
                height: 12px;
            }

            .tips-content h2 {
                font-size: 1.5rem;
            }

            .cta-section h2 {
                font-size: 1.7rem;
            }

            .cta-section p {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .category-grid {
                grid-template-columns: 1fr;
            }

            .page-banner h1 {
                font-size: 1.6rem;
            }

            .page-banner .container {
                padding: 40px 16px;
            }

            .banner-tags .badge {
                font-size: 0.78rem;
                padding: 4px 14px;
            }

            .guide-card .card-image {
                height: 160px;
            }

            .guide-card .card-body {
                padding: 16px 18px 20px;
            }

            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }

            .faq-answer {
                padding: 0 18px;
            }

            .faq-item.active .faq-answer {
                padding: 0 18px 16px 18px;
            }

            .tips-image {
                height: 200px;
            }

            .tips-content .tip-item {
                padding: 12px 16px;
            }

            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .cta-section {
                padding: 50px 0;
            }

            .footer-grid {
                gap: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1e272e;
            --primary-light: #2d3436;
            --secondary: #6c5ce7;
            --secondary-light: #a29bfe;
            --accent: #fdcb6e;
            --accent-orange: #e17055;
            --bg: #f1f2f6;
            --bg-card: #ffffff;
            --bg-dark: #1e272e;
            --text: #2d3436;
            --text-light: #636e72;
            --text-white: #f1f2f6;
            --border: #dfe6e9;
            --border-light: #f0f0f0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

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

        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(30, 39, 46, 0.92);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            height: var(--nav-height);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--secondary-light); font-size: 1.4rem; }
        .logo span { color: var(--accent); font-weight: 300; }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: #fff;
            background: rgba(255,255,255,0.08);
        }
        .nav-list li a.active {
            color: #fff;
            background: rgba(108, 92, 231, 0.25);
        }
        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--secondary-light);
        }
        .nav-cta { margin-left: 12px; }
        .nav-cta .btn {
            padding: 8px 22px;
            font-size: 0.9rem;
            border-radius: 50px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: var(--transition);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: #5a4bd1;
            border-color: #5a4bd1;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--secondary-light);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            color: var(--secondary);
            border-color: var(--secondary);
        }
        .btn-outline:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
        }
        .btn-ghost {
            background: rgba(255,255,255,0.08);
            color: #fff;
            border-color: rgba(255,255,255,0.20);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.16);
            border-color: rgba(255,255,255,0.35);
            transform: translateY(-2px);
        }

        /* ===== Tag / Badge ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(108, 92, 231, 0.10);
            color: var(--secondary);
            border: 1px solid rgba(108, 92, 231, 0.15);
            transition: var(--transition);
        }
        .tag:hover { background: rgba(108, 92, 231, 0.18); }
        .tag-accent {
            background: rgba(253, 203, 110, 0.18);
            color: #b8860b;
            border-color: rgba(253, 203, 110, 0.25);
        }
        .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }
        .badge-primary { background: var(--secondary); color: #fff; }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 160px 0 80px;
            background: var(--primary);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .article-banner .bg-overlay {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .article-banner .bg-gradient {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30,39,46,0.92) 0%, rgba(108,92,231,0.40) 100%);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            max-width: 820px;
            text-align: center;
        }
        .article-banner .meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        .article-banner .meta .tag {
            background: rgba(255,255,255,0.12);
            color: #fff;
            border-color: rgba(255,255,255,0.15);
        }
        .article-banner .meta .tag:hover { background: rgba(255,255,255,0.20); }
        .article-banner h1 {
            font-size: 2.8rem;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.25;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .article-banner .meta-bottom {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-top: 8px;
        }
        .article-banner .meta-bottom i { margin-right: 6px; }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-body .author-line {
            display: flex;
            align-items: center;
            gap: 14px;
            padding-bottom: 24px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.95rem;
            color: var(--text-light);
        }
        .article-body .author-line .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .article-body .author-line .name { font-weight: 600; color: var(--text); }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body .content p { margin-bottom: 1.6em; }
        .article-body .content h2, 
        .article-body .content h3 { margin-top: 1.8em; margin-bottom: 0.8em; }
        .article-body .content img { border-radius: var(--radius-md); margin: 1.6em 0; }
        .article-body .content ul, 
        .article-body .content ol { padding-left: 1.6em; margin-bottom: 1.6em; }
        .article-body .content ul li { list-style: disc; margin-bottom: 0.4em; }
        .article-body .content ol li { list-style: decimal; margin-bottom: 0.4em; }
        .article-body .content blockquote {
            border-left: 4px solid var(--secondary);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: rgba(108,92,231,0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body .content a { color: var(--secondary); text-decoration: underline; }
        .article-body .content a:hover { color: #5a4bd1; }

        /* ===== Article Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 32px;
            margin-top: 32px;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .tag-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-light);
            margin-right: 4px;
        }

        /* ===== Article Share ===== */
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-share span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
        }
        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-light);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--secondary); }
        .sidebar-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 0.9rem;
            line-height: 1.5;
            color: var(--text);
        }
        .sidebar-list li a:hover { color: var(--secondary); }
        .sidebar-list li a .num {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-light);
        }
        .sidebar-list li a .num.top { background: var(--accent); color: var(--primary); }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--secondary) 0%, #5a4bd1 100%);
            color: #fff;
            border: none;
            text-align: center;
        }
        .sidebar-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.15); }
        .sidebar-cta h3 i { color: var(--accent); }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.85; margin-bottom: 20px; }
        .sidebar-cta .btn {
            background: #fff;
            color: var(--secondary);
            border: none;
        }
        .sidebar-cta .btn:hover { background: var(--accent); color: var(--primary); }

        /* ===== Article Nav ===== */
        .article-nav-section {
            padding: 40px 0 20px;
        }
        .article-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-nav a {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .article-nav a:hover { background: var(--bg); }
        .article-nav a .label {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-nav a .title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
        }
        .article-nav a:hover .title { color: var(--secondary); }
        .article-nav .next { text-align: right; }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-card);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .related-section .section-title h2 {
            font-size: 1.8rem;
            position: relative;
            display: inline-block;
        }
        .related-section .section-title h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            border-radius: 2px;
            background: var(--secondary);
            margin: 12px auto 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .related-card .thumb {
            aspect-ratio: 16 / 9;
            background: var(--border);
            overflow: hidden;
        }
        .related-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .thumb img { transform: scale(1.05); }
        .related-card .info {
            padding: 20px 22px 24px;
        }
        .related-card .info .tag { margin-bottom: 10px; }
        .related-card .info h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .related-card .info h3 a { color: var(--text); }
        .related-card .info h3 a:hover { color: var(--secondary); }
        .related-card .info p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .related-card .info .date {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section .bg-pattern {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            margin-bottom: 32px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: 16px; color: #fff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 340px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary-light); }

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

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .not-found-box i {
            font-size: 3.5rem;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: 0.4;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 820px) {
            .article-banner h1 { font-size: 2.2rem; }
            .article-body { padding: 32px 28px; }
            .article-nav { grid-template-columns: 1fr; gap: 16px; }
            .article-nav .next { text-align: left; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .site-footer .footer-brand p { max-width: 100%; }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-toggle { display: flex; }
            .nav-list.active {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(30,39,46,0.98);
                backdrop-filter: blur(20px);
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-list.active li a { padding: 14px 18px; }
            .nav-cta { margin-left: 0; margin-top: 8px; }
            .article-banner { padding: 130px 0 60px; min-height: 300px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-body { padding: 24px 20px; border-radius: var(--radius-md); }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner { padding: 110px 0 48px; min-height: 260px; }
            .article-banner h1 { font-size: 1.5rem; }
            .article-banner .meta { font-size: 0.8rem; gap: 10px; }
            .article-banner .meta-bottom { font-size: 0.8rem; gap: 14px; flex-wrap: wrap; }
            .article-body { padding: 20px 16px; }
            .article-body .content { font-size: 1rem; }
            .article-nav { padding: 20px 16px; }
            .related-section .section-title h2 { font-size: 1.4rem; }
            .cta-section { padding: 60px 0; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-section .btn-group .btn { width: 100%; }
            .footer-grid { gap: 24px; }
        }

        @media (max-width: 480px) {
            .article-banner h1 { font-size: 1.3rem; }
            .article-body .author-line { flex-wrap: wrap; }
            .article-share { flex-wrap: wrap; }
        }