/* roulang page: index */
:root {
        --primary: #0f1f3a;
        --primary-light: #1a2d4e;
        --primary-dark: #091220;
        --accent: #c9a84c;
        --accent-light: #e8d07a;
        --accent-dark: #a88a30;
        --bg-light: #f8f7f4;
        --bg-card: #ffffff;
        --text-dark: #1a1a2e;
        --text-body: #2d2d3f;
        --text-muted: #6b7280;
        --text-white: #f0efe9;
        --border-light: #e5e3dc;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow-sm: 0 4px 12px rgba(15,31,58,0.06);
        --shadow-md: 0 8px 28px rgba(15,31,58,0.10);
        --shadow-lg: 0 16px 48px rgba(15,31,58,0.14);
        --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font-sans); color: var(--text-body); background: var(--bg-light); line-height: 1.6; -webkit-font-smoothing: antialiased; }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea, select { font-family: inherit; font-size: inherit; }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    .container-lg { max-width: 1100px; }
    .container-md { max-width: 960px; }

    /* === Navigation === */
    .navbar-custom {
        background: rgba(15,31,58,0.85);
        backdrop-filter: blur(16px) saturate(180%);
        -webkit-backdrop-filter: blur(16px) saturate(180%);
        border-radius: 60px;
        margin: 16px auto;
        padding: 0 8px;
        max-width: 900px;
        box-shadow: 0 8px 32px rgba(15,31,58,0.20);
        border: 1px solid rgba(201,168,76,0.15);
        transition: var(--transition);
    }
    .navbar-custom .navbar-brand {
        color: var(--accent-light);
        font-weight: 700;
        font-size: 1.25rem;
        letter-spacing: 0.5px;
        padding: 10px 16px;
        transition: var(--transition);
    }
    .navbar-custom .navbar-brand:hover { color: #fff; }
    .navbar-custom .navbar-brand i { color: var(--accent); margin-right: 8px; }
    .navbar-custom .nav-link {
        color: rgba(240,239,233,0.80);
        font-weight: 500;
        font-size: 0.95rem;
        padding: 8px 18px !important;
        border-radius: 40px;
        transition: var(--transition);
        position: relative;
    }
    .navbar-custom .nav-link:hover,
    .navbar-custom .nav-link.active {
        color: #fff;
        background: rgba(201,168,76,0.12);
    }
    .navbar-custom .nav-link.active { color: var(--accent-light); }
    .navbar-custom .nav-link i { margin-right: 6px; font-size: 0.85rem; }
    .navbar-custom .navbar-toggler {
        border: none;
        color: var(--accent-light);
        font-size: 1.4rem;
        padding: 8px 12px;
    }
    .navbar-custom .navbar-toggler:focus { box-shadow: none; }
    .navbar-custom .navbar-collapse { justify-content: center; }
    @media (max-width: 768px) {
        .navbar-custom { border-radius: 20px; margin: 12px 16px; padding: 0 4px; }
        .navbar-custom .navbar-brand { font-size: 1.05rem; padding: 10px 12px; }
        .navbar-custom .nav-link { padding: 10px 20px !important; text-align: center; }
        .navbar-custom .navbar-nav { padding: 8px 0; }
    }

    /* === Hero === */
    .hero-section {
        position: relative;
        min-height: 85vh;
        display: flex;
        align-items: center;
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
        overflow: hidden;
        margin-top: -90px;
        padding-top: 90px;
    }
    .hero-section::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-section::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 30% 40%, rgba(201,168,76,0.08) 0%, transparent 60%),
                    radial-gradient(ellipse at 70% 60%, rgba(15,31,58,0.6) 0%, transparent 50%);
    }
    .hero-content { position: relative; z-index: 2; padding: 80px 0 60px; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(201,168,76,0.12);
        border: 1px solid rgba(201,168,76,0.25);
        color: var(--accent-light);
        padding: 6px 18px;
        border-radius: 40px;
        font-size: 0.85rem;
        font-weight: 500;
        letter-spacing: 0.3px;
        margin-bottom: 24px;
    }
    .hero-badge i { font-size: 0.75rem; }
    .hero-title {
        font-size: clamp(2.4rem, 6vw, 4.2rem);
        font-weight: 800;
        line-height: 1.15;
        color: #fff;
        margin-bottom: 20px;
        letter-spacing: -0.5px;
    }
    .hero-title .highlight { color: var(--accent-light); }
    .hero-desc {
        font-size: 1.15rem;
        color: rgba(240,239,233,0.80);
        max-width: 600px;
        line-height: 1.7;
        margin-bottom: 36px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
    .btn-accent {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--accent);
        color: var(--primary-dark);
        font-weight: 700;
        font-size: 1rem;
        padding: 14px 32px;
        border-radius: 60px;
        border: none;
        transition: var(--transition);
        box-shadow: 0 4px 20px rgba(201,168,76,0.30);
    }
    .btn-accent:hover { background: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(201,168,76,0.40); }
    .btn-outline-light {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: transparent;
        color: #fff;
        font-weight: 600;
        font-size: 1rem;
        padding: 14px 32px;
        border-radius: 60px;
        border: 1.5px solid rgba(255,255,255,0.30);
        transition: var(--transition);
    }
    .btn-outline-light:hover { background: rgba(255,255,255,0.06); border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
    .hero-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 32px 48px;
        margin-top: 50px;
        padding-top: 30px;
        border-top: 1px solid rgba(255,255,255,0.08);
    }
    .hero-stat-item { text-align: left; }
    .hero-stat-number {
        font-size: 2rem;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
    }
    .hero-stat-number span { color: var(--accent-light); }
    .hero-stat-label { font-size: 0.85rem; color: rgba(240,239,233,0.60); margin-top: 2px; }
    @media (max-width: 768px) {
        .hero-section { min-height: 70vh; margin-top: -80px; padding-top: 80px; }
        .hero-content { padding: 60px 0 40px; }
        .hero-desc { font-size: 1rem; }
        .hero-stats { gap: 24px 32px; }
        .hero-stat-number { font-size: 1.6rem; }
    }

    /* === Section Common === */
    .section-padding { padding: 80px 0; }
    .section-padding-sm { padding: 56px 0; }
    .section-title {
        font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        font-weight: 800;
        color: var(--primary);
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .section-subtitle {
        font-size: 1.05rem;
        color: var(--text-muted);
        max-width: 600px;
        margin-bottom: 40px;
        line-height: 1.7;
    }
    .section-divider {
        width: 60px;
        height: 4px;
        background: var(--accent);
        border-radius: 4px;
        margin-bottom: 20px;
    }
    .bg-dark-section {
        background: var(--primary);
        color: var(--text-white);
    }
    .bg-dark-section .section-title { color: #fff; }
    .bg-dark-section .section-subtitle { color: rgba(240,239,233,0.70); }
    .bg-light-alt { background: #f0eee9; }

    /* === Cards === */
    .card-custom {
        background: var(--bg-card);
        border: none;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        overflow: hidden;
        height: 100%;
    }
    .card-custom:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .card-custom .card-body { padding: 28px 24px; }
    .card-custom .card-img-top { border-radius: var(--radius-md) var(--radius-md) 0 0; object-fit: cover; height: 200px; }
    .card-custom .card-title { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
    .card-custom .card-text { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
    .card-custom .card-tag {
        display: inline-block;
        background: rgba(201,168,76,0.10);
        color: var(--accent-dark);
        font-size: 0.75rem;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 30px;
        margin-bottom: 12px;
    }
    .card-icon-box {
        width: 52px;
        height: 52px;
        border-radius: var(--radius-sm);
        background: rgba(201,168,76,0.10);
        color: var(--accent);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        margin-bottom: 16px;
        transition: var(--transition);
    }
    .card-custom:hover .card-icon-box { background: var(--accent); color: #fff; }

    /* === Stats / Data Blocks === */
    .stat-block {
        text-align: center;
        padding: 36px 20px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
    }
    .stat-block:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
    .stat-block .stat-number { font-size: 2.6rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
    .stat-block .stat-number .accent { color: var(--accent); }
    .stat-block .stat-label { font-size: 0.95rem; color: var(--text-muted); margin-top: 6px; }
    .stat-block .stat-icon { font-size: 2rem; color: var(--accent); margin-bottom: 12px; }

    /* === Steps / Timeline === */
    .step-item {
        display: flex;
        gap: 20px;
        margin-bottom: 32px;
        position: relative;
    }
    .step-item:not(:last-child)::after {
        content: '';
        position: absolute;
        left: 22px;
        top: 56px;
        bottom: -16px;
        width: 2px;
        background: var(--border-light);
    }
    .step-number {
        flex-shrink: 0;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--accent);
        color: var(--primary-dark);
        font-weight: 800;
        font-size: 1.1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 1;
    }
    .step-content h5 { font-weight: 700; color: var(--primary); margin-bottom: 6px; }
    .step-content p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 0; }

    /* === FAQ === */
    .faq-item {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        margin-bottom: 12px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { box-shadow: var(--shadow-md); }
    .faq-question {
        padding: 20px 24px;
        font-weight: 600;
        color: var(--primary);
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        transition: var(--transition);
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        font-size: 1rem;
    }
    .faq-question:hover { color: var(--accent-dark); }
    .faq-question i { color: var(--accent); font-size: 0.85rem; transition: var(--transition); }
    .faq-answer {
        padding: 0 24px 20px;
        color: var(--text-muted);
        font-size: 0.95rem;
        line-height: 1.7;
    }

    /* === CTA === */
    .cta-section {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
        border-radius: var(--radius-lg);
        padding: 56px 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        opacity: 0.08;
        mix-blend-mode: overlay;
    }
    .cta-section .cta-content { position: relative; z-index: 1; }
    .cta-section h2 { color: #fff; font-weight: 800; font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
    .cta-section p { color: rgba(240,239,233,0.75); max-width: 560px; margin: 0 auto 28px; font-size: 1.05rem; }
    .cta-section .btn-accent { font-size: 1.05rem; padding: 16px 40px; }

    /* === Footer === */
    .footer {
        background: var(--primary-dark);
        color: rgba(240,239,233,0.70);
        padding: 48px 0 28px;
    }
    .footer h5 { color: #fff; font-weight: 700; font-size: 1.05rem; margin-bottom: 16px; }
    .footer a { color: rgba(240,239,233,0.65); }
    .footer a:hover { color: var(--accent-light); }
    .footer .footer-links { list-style: none; padding: 0; }
    .footer .footer-links li { margin-bottom: 8px; }
    .footer .footer-links a { font-size: 0.92rem; }
    .footer .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06);
        padding-top: 20px;
        margin-top: 32px;
        font-size: 0.85rem;
        text-align: center;
        color: rgba(240,239,233,0.45);
    }
    .footer .footer-brand { font-size: 1.1rem; font-weight: 700; color: var(--accent-light); margin-bottom: 8px; }

    /* === Tags / Badges === */
    .tag {
        display: inline-block;
        background: rgba(201,168,76,0.08);
        color: var(--accent-dark);
        font-size: 0.78rem;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 30px;
        border: 1px solid rgba(201,168,76,0.12);
        transition: var(--transition);
    }
    .tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

    /* === News List (CMS) === */
    .news-item {
        display: flex;
        gap: 16px;
        padding: 18px 0;
        border-bottom: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .news-item:last-child { border-bottom: none; }
    .news-item:hover { padding-left: 8px; }
    .news-item .news-category {
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--accent-dark);
        background: rgba(201,168,76,0.08);
        padding: 2px 12px;
        border-radius: 30px;
        white-space: nowrap;
    }
    .news-item .news-title { font-weight: 600; color: var(--primary); font-size: 1rem; margin-bottom: 4px; }
    .news-item .news-title a { color: var(--primary); }
    .news-item .news-title a:hover { color: var(--accent); }
    .news-item .news-meta { font-size: 0.82rem; color: var(--text-muted); }
    .news-item .news-summary { font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; }

    /* === Responsive === */
    @media (max-width: 992px) {
        .section-padding { padding: 60px 0; }
        .section-padding-sm { padding: 40px 0; }
        .cta-section { padding: 40px 28px; border-radius: var(--radius-md); }
    }
    @media (max-width: 768px) {
        .section-padding { padding: 48px 0; }
        .hero-title { font-size: 2rem; }
        .hero-desc { font-size: 0.95rem; }
        .hero-actions { flex-direction: column; align-items: stretch; }
        .hero-actions .btn { justify-content: center; }
        .stat-block .stat-number { font-size: 2rem; }
        .footer .footer-links { margin-bottom: 20px; }
        .news-item { flex-direction: column; gap: 8px; }
        .news-item .news-category { align-self: flex-start; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 14px; }
        .hero-section { min-height: 60vh; }
        .hero-title { font-size: 1.7rem; }
        .hero-stats { gap: 16px 20px; }
        .hero-stat-number { font-size: 1.3rem; }
        .card-custom .card-body { padding: 20px 16px; }
        .faq-question { padding: 16px 18px; font-size: 0.95rem; }
        .faq-answer { padding: 0 18px 16px; }
    }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #3a4a9c;
            --primary-dark: #0e1a4a;
            --secondary: #c9a84c;
            --secondary-light: #e8c96a;
            --secondary-dark: #a88830;
            --accent: #e74c3c;
            --bg-light: #f8f9fc;
            --bg-dark: #0e1a4a;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9a;
            --text-light: #f0f0f5;
            --border-color: #e2e6f0;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
            --shadow-md: 0 8px 30px rgba(26,42,108,0.10);
            --shadow-lg: 0 20px 60px rgba(26,42,108,0.15);
            --shadow-glow: 0 0 40px rgba(201,168,76,0.20);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.2rem; }
        h2 { font-size: 1.8rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        ul, ol { padding-left: 1.25rem; margin-bottom: 1rem; }

        /* ===== Container ===== */
        .container { max-width: 1140px; padding-left: 1.25rem; padding-right: 1.25rem; }

        /* ===== Navigation (胶囊悬浮) ===== */
        .navbar-custom {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 0.5rem 1.25rem;
            margin: 1rem auto;
            max-width: 1200px;
            width: calc(100% - 2rem);
            border: 1px solid rgba(255,255,255,0.6);
            transition: var(--transition);
        }
        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: -0.3px;
            padding: 0.4rem 0;
        }
        .navbar-custom .navbar-brand i { color: var(--secondary); margin-right: 0.4rem; }
        .navbar-custom .navbar-nav .nav-link {
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-body);
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-custom .navbar-nav .nav-link i { margin-right: 0.35rem; font-size: 0.85rem; opacity: 0.75; }
        .navbar-custom .navbar-nav .nav-link:hover,
        .navbar-custom .navbar-nav .nav-link:focus {
            color: var(--primary);
            background: rgba(26,42,108,0.05);
        }
        .navbar-custom .navbar-nav .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 4px 15px rgba(26,42,108,0.25);
        }
        .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            color: var(--primary);
            background: rgba(26,42,108,0.06);
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
        }
        .navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--secondary); }
        @media (max-width: 767.98px) {
            .navbar-custom { margin: 0.5rem; width: calc(100% - 1rem); padding: 0.4rem 0.8rem; }
            .navbar-custom .navbar-nav .nav-link { padding: 0.5rem 1rem; }
        }

        /* ===== Article Hero / Banner ===== */
        .article-hero {
            position: relative;
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(201,168,76,0.15) 0%, transparent 70%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb-custom {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 1.2rem;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb-custom a { color: rgba(255,255,255,0.8); }
        .article-hero .breadcrumb-custom a:hover { color: var(--secondary-light); }
        .article-hero .breadcrumb-custom .sep { opacity: 0.5; margin: 0 0.25rem; }
        .article-hero h1 {
            color: #fff;
            font-size: 2.4rem;
            font-weight: 800;
            max-width: 860px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.2);
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }
        .article-hero .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            align-items: center;
            color: rgba(255,255,255,0.85);
            font-size: 0.92rem;
        }
        .article-hero .meta-line .badge-category {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 50px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.78rem;
            letter-spacing: 0.5px;
        }
        .article-hero .meta-line i { margin-right: 0.25rem; opacity: 0.7; }
        @media (max-width: 768px) {
            .article-hero { padding: 2.5rem 0 2rem; min-height: 180px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .meta-line { gap: 0.8rem; font-size: 0.82rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.3rem; }
        }

        /* ===== Article Main Content ===== */
        .article-main {
            padding: 3rem 0 4rem;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 2.5rem 3rem;
            border: 1px solid var(--border-color);
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: var(--text-dark);
        }
        .article-body p { margin-bottom: 1.2rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.2rem; }
        .article-body img { border-radius: var(--radius-sm); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary); border-bottom: 1px solid rgba(26,42,108,0.2); }
        .article-body a:hover { border-bottom-color: var(--primary); }
        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
        }
        .article-body code {
            background: #f0f0f5;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--accent);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .article-body th, .article-body td {
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            text-align: left;
        }
        .article-body th { background: var(--primary); color: #fff; font-weight: 600; }
        .article-body td { background: #fff; }
        .article-tags {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            align-items: center;
        }
        .article-tags .tag-label { font-weight: 700; color: var(--text-muted); font-size: 0.85rem; }
        .article-tags .tag-item {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-tags .tag-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .article-nav {
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem;
        }
        .article-nav a {
            padding: 0.6rem 1.5rem;
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            color: var(--text-body);
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .article-nav a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
        .article-nav .nav-disabled { opacity: 0.4; pointer-events: none; }
        @media (max-width: 768px) {
            .article-card { padding: 1.5rem 1.2rem; }
            .article-body { font-size: 0.98rem; }
            .article-nav { flex-direction: column; align-items: stretch; }
            .article-nav a { justify-content: center; }
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .not-found-box i { font-size: 4rem; color: var(--text-muted); margin-bottom: 1.5rem; opacity: 0.4; }
        .not-found-box h2 { font-size: 1.8rem; margin-bottom: 0.8rem; }
        .not-found-box p { color: var(--text-muted); max-width: 480px; margin: 0 auto 1.5rem; }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== FAQ Section ===== */
        .section-faq {
            padding: 3rem 0 4rem;
            background: var(--bg-light);
        }
        .section-faq .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-faq .section-title h2 { font-size: 1.8rem; }
        .section-faq .section-title p { color: var(--text-muted); max-width: 600px; margin: 0.5rem auto 0; }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); border-color: var(--secondary); }
        .faq-question {
            font-weight: 700;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 1.02rem;
        }
        .faq-question i { color: var(--secondary); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding-top: 0.8rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
            border-top: 1px solid var(--border-color);
            margin-top: 0.8rem;
        }
        .faq-item.active .faq-answer { display: block; }
        @media (max-width: 768px) {
            .faq-item { padding: 1rem 1.2rem; }
            .faq-question { font-size: 0.95rem; }
        }

        /* ===== CTA Section ===== */
        .section-cta {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }
        .section-cta::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;
        }
        .section-cta .container { position: relative; z-index: 2; }
        .cta-box { text-align: center; max-width: 720px; margin: 0 auto; }
        .cta-box h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 0.8rem; }
        .cta-box p { color: rgba(255,255,255,0.8); font-size: 1.05rem; margin-bottom: 1.8rem; }
        .cta-box .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.9rem 2.8rem;
            border-radius: 50px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.05rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(201,168,76,0.35);
        }
        .cta-box .btn-cta:hover { background: var(--secondary-light); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(201,168,76,0.45); color: var(--primary-dark); }
        .cta-box .btn-cta i { font-size: 1.1rem; }
        @media (max-width: 768px) {
            .section-cta { padding: 3rem 0; }
            .cta-box h2 { font-size: 1.5rem; }
            .cta-box .btn-cta { padding: 0.8rem 2rem; font-size: 0.95rem; }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 3.5rem 0 0;
        }
        .footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .footer .footer-brand i { color: var(--secondary); }
        .footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }
        .footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer .footer-links li { margin-bottom: 0.5rem; }
        .footer .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer .footer-links a:hover { color: var(--secondary-light); transform: translateX(4px); }
        .footer .footer-links i { width: 1.2rem; color: var(--secondary); }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 1.5rem 0;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer .footer-bottom a:hover { color: var(--secondary-light); }
        @media (max-width: 768px) {
            .footer { padding: 2.5rem 0 0; }
            .footer .footer-brand { font-size: 1.3rem; }
        }

        /* ===== Utility ===== */
        .text-gold { color: var(--secondary); }
        .bg-soft { background: var(--bg-light); }
        .shadow-soft { box-shadow: var(--shadow-sm); }
        .rounded-pill-custom { border-radius: 50px; }
        .mb-section { margin-bottom: 3rem; }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 991.98px) {
            .article-hero h1 { font-size: 2rem; }
        }
        @media (max-width: 575.98px) {
            .article-card { padding: 1.2rem 1rem; border-radius: var(--radius-sm); }
            .article-hero h1 { font-size: 1.2rem; }
            .article-hero .meta-line { font-size: 0.78rem; gap: 0.5rem; }
            .cta-box h2 { font-size: 1.3rem; }
            .cta-box .btn-cta { width: 100%; justify-content: center; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a9e;
            --primary-dark: #0f1a4a;
            --accent: #f5a623;
            --accent-light: #ffc453;
            --accent-dark: #d4880f;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a4a;
            --text-primary: #1a2a6c;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 12px 40px rgba(26, 42, 108, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            font-family: var(--font-base);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            line-height: 1.3;
            font-weight: 700;
            margin-top: 0;
        }
        p {
            margin-top: 0;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-radius: 60px;
            margin: 1rem auto 0;
            max-width: calc(var(--container-max) - 2rem);
            padding: 0 0.75rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: box-shadow var(--transition);
        }
        .navbar-custom .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            padding: 0.6rem 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            letter-spacing: -0.3px;
        }
        .navbar-custom .navbar-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--primary-dark);
        }
        .navbar-custom .navbar-nav .nav-link {
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-body);
            padding: 0.5rem 1rem;
            border-radius: 40px;
            transition: background var(--transition), color var(--transition), transform 0.2s;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .navbar-custom .navbar-nav .nav-link i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .navbar-custom .navbar-nav .nav-link:hover {
            background: rgba(26, 42, 108, 0.06);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .navbar-custom .navbar-nav .nav-link:hover i {
            color: var(--primary-light);
        }
        .navbar-custom .navbar-nav .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 42, 108, 0.25);
        }
        .navbar-custom .navbar-nav .nav-link.active i {
            color: #fff;
        }
        .navbar-custom .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            color: var(--primary);
            background: rgba(26, 42, 108, 0.06);
            border-radius: 40px;
        }
        .navbar-custom .navbar-toggler:hover {
            background: rgba(26, 42, 108, 0.12);
        }
        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(26, 42, 108, 0.2);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 6rem 0 4.5rem;
            margin-top: -2.2rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-light);
            text-align: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 26, 74, 0.72);
            backdrop-filter: blur(2px);
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .category-hero h1 i {
            color: var(--accent-light);
            margin-right: 0.5rem;
        }
        .category-hero .hero-sub {
            font-size: 1.15rem;
            opacity: 0.92;
            max-width: 640px;
            margin: 0 auto 1.8rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(6px);
            padding: 0.4rem 1.4rem;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            letter-spacing: 0.3px;
        }
        .category-hero .hero-badge i {
            margin-right: 0.4rem;
            color: var(--accent-light);
        }

        /* ===== 通用板块 ===== */
        .section-pad {
            padding: 4.5rem 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            letter-spacing: -0.4px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }
        .section-sub.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-title.center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        .divider-line {
            width: 56px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 4px;
            margin: 0.6rem 0 1.2rem;
        }
        .center .divider-line {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-custom .card-body {
            padding: 1.6rem 1.5rem;
        }
        .card-custom .card-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 0.8rem;
            display: inline-block;
            background: rgba(26, 42, 108, 0.06);
            width: 52px;
            height: 52px;
            line-height: 52px;
            text-align: center;
            border-radius: var(--radius-sm);
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .card-custom .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .card-custom .card-img-top {
            height: 200px;
            object-fit: cover;
        }

        /* ===== 步骤流程 ===== */
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 2rem 1.8rem;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 技巧标签 ===== */
        .tip-tag {
            display: inline-block;
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            margin-right: 0.4rem;
            margin-bottom: 0.4rem;
            border: 1px solid rgba(245, 166, 35, 0.15);
        }
        .tip-tag i {
            margin-right: 0.25rem;
            font-size: 0.7rem;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 2rem 2rem 0.5rem;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 1.2rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
            transition: transform 0.3s;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding-top: 0.6rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.4px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 540px;
            margin: 0.6rem auto 1.8rem;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 0.8rem 2.4rem;
            border-radius: 60px;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 6px 24px rgba(245, 166, 35, 0.35);
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 10px 32px rgba(245, 166, 35, 0.45);
            background: var(--accent-light);
            color: var(--primary-dark);
        }
        .cta-section .btn-cta i {
            margin-right: 0.5rem;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 0;
            margin-top: 4rem;
        }
        .footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer .footer-brand i {
            color: var(--accent);
        }
        .footer h5 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .footer ul.footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer ul.footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer ul.footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition), padding-left 0.2s;
            display: inline-block;
        }
        .footer ul.footer-links a:hover {
            color: var(--accent-light);
            padding-left: 3px;
        }
        .footer ul.footer-links i {
            color: var(--accent-light);
            opacity: 0.7;
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.4rem 0;
            margin-top: 2.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }
        .footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .footer p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .navbar-custom {
                border-radius: 40px;
                margin: 0.6rem 0.75rem 0;
                padding: 0 0.5rem;
            }
            .navbar-custom .navbar-nav .nav-link {
                padding: 0.45rem 1rem;
                font-size: 0.88rem;
                border-radius: 30px;
            }
            .category-hero {
                padding: 4.5rem 0 3rem;
                margin-top: -1.8rem;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-sub {
                font-size: 0.98rem;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 1.8rem;
            }
            .step-card {
                padding: 1.5rem 1.2rem;
            }
            .faq-section {
                padding: 1.2rem 1.2rem 0.3rem;
            }
            .cta-section {
                padding: 2.5rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .footer {
                padding: 2.5rem 0 0;
            }
            .footer .footer-bottom {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .navbar-custom .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-custom .navbar-nav .nav-link {
                font-size: 0.82rem;
                padding: 0.35rem 0.8rem;
            }
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .category-hero .hero-sub {
                font-size: 0.88rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .card-custom .card-body {
                padding: 1.2rem 1rem;
            }
            .card-custom .card-title {
                font-size: 1rem;
            }
            .step-number {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .step-card h4 {
                font-size: 0.98rem;
            }
            .faq-question {
                font-size: 0.92rem;
            }
            .cta-section .btn-cta {
                padding: 0.6rem 1.6rem;
                font-size: 0.92rem;
            }
        }