/* roulang page: index */
:root {
            --primary: #6A0DAD;
            --primary-light: #8B3AFF;
            --secondary: #FF6B35;
            --secondary-light: #FF8A5C;
            --bg-dark: #0F0F0F;
            --bg-card: #1C1C1E;
            --bg-input: #2C2C2E;
            --text-primary: #FFFFFF;
            --text-secondary: #F5F5F5;
            --text-muted: #9E9E9E;
            --border-color: rgba(255,255,255,0.08);
            --border-hover: rgba(106,13,173,0.6);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
            --transition: all 0.3s ease;
            --gradient-main: linear-gradient(135deg, #6A0DAD, #FF6B35);
            --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            background: var(--bg-dark);
            color: var(--text-secondary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; }
        button, input, textarea, select { font-family: inherit; transition: var(--transition); }
        .container { max-width: 1200px; padding: 0 20px; margin: 0 auto; }

        /* header / nav */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .site-logo span { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-menu { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
        .nav-menu a {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 4px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-main);
            transition: var(--transition);
            border-radius: 2px;
        }
        .nav-menu a:hover, .nav-menu a.active { color: var(--text-primary); }
        .nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
        .nav-menu a.active { color: var(--text-primary); }
        .nav-right { display: flex; align-items: center; gap: 1rem; }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border-radius: 20px;
            padding: 0 12px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(106,13,173,0.2); }
        .search-box i { color: var(--text-muted); font-size: 0.9rem; margin-right: 8px; }
        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.9rem;
            padding: 8px 0;
            width: 160px;
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .nav-cta {
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.5rem 1.5rem;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        .nav-cta:hover { background: var(--gradient-main); box-shadow: 0 0 20px rgba(106,13,173,0.4); transform: translateY(-1px); }
        .navbar-toggler {
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            color: var(--text-primary);
            font-size: 1.2rem;
            cursor: pointer;
            display: none;
        }

        /* hero */
        #hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 120px 0 80px;
            overflow: hidden;
        }
        #hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,15,15,0.75);
            z-index: 1;
        }
        #hero::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(106,13,173,0.15), transparent 60%), radial-gradient(circle at 70% 50%, rgba(255,107,53,0.1), transparent 60%);
            z-index: 0;
            animation: heroGlow 12s ease-in-out infinite alternate;
        }
        @keyframes heroGlow { 0% { transform: translate(0,0); } 100% { transform: translate(-2%,-2%); } }
        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 820px; }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light) 70%, var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content .subtitle {
            font-size: 1.4rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            font-weight: 400;
        }
        .hero-content .subtitle span { color: var(--secondary); font-weight: 600; }
        .hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .btn-primary-custom {
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.8rem 2.4rem;
            font-size: 1.05rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-custom:hover { background: var(--gradient-main); box-shadow: 0 0 30px rgba(106,13,173,0.5); transform: translateY(-2px); color: #fff; }
        .btn-secondary-custom {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-md);
            padding: 0.8rem 2.4rem;
            font-size: 1.05rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-secondary-custom:hover { border-color: var(--primary); color: var(--text-primary); background: rgba(106,13,173,0.15); transform: translateY(-2px); }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 3rem;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item { text-align: center; }
        .hero-stats .stat-number { font-size: 2rem; font-weight: 700; color: var(--text-primary); }
        .hero-stats .stat-label { font-size: 0.9rem; color: var(--text-muted); }

        /* section common */
        section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 3rem; }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .section-title p { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--gradient-main);
            border-radius: 3px;
            margin: 0.75rem auto 0;
        }

        /* timeline */
        #timeline {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .timeline-list {
            display: flex;
            justify-content: space-between;
            list-style: none;
            padding: 0;
            margin: 0;
            position: relative;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 5%;
            right: 5%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
            opacity: 0.3;
            border-radius: 2px;
        }
        .timeline-list li {
            flex: 1;
            min-width: 120px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding-top: 0.5rem;
        }
        .timeline-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-dark);
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.4rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .timeline-list li:hover .timeline-icon { border-color: var(--secondary); box-shadow: 0 0 20px rgba(255,107,53,0.3); }
        .timeline-list .step-label { font-weight: 600; color: var(--text-primary); font-size: 1rem; }
        .timeline-list .step-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

        /* highlights */
        #highlights .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        #highlights .card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        #highlights .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        #highlights .card:hover .card-img-top { transform: scale(1.05); }
        #highlights .card-body { padding: 1.25rem; }
        #highlights .card-title { font-size: 1.15rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.5rem; }
        #highlights .card-text { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        /* pricing */
        #pricing { background: var(--bg-card); }
        .pricing-card {
            background: var(--bg-dark);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .pricing-card.featured {
            border-color: var(--secondary);
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(255,107,53,0.15);
        }
        .pricing-card.featured:hover { transform: scale(1.05) translateY(-4px); }
        .pricing-card .plan-name { font-size: 1.3rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.5rem; }
        .pricing-card .plan-price { font-size: 2.5rem; font-weight: 700; color: var(--secondary); margin-bottom: 0.25rem; }
        .pricing-card .plan-price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
        .pricing-card .plan-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
        .pricing-card .plan-features { list-style: none; padding: 0; margin: 0 0 1.5rem; text-align: left; flex: 1; }
        .pricing-card .plan-features li { padding: 0.5rem 0; color: var(--text-secondary); font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
        .pricing-card .plan-features li i { color: var(--secondary); width: 18px; }
        .pricing-card .plan-features li i.fa-times { color: var(--text-muted); }
        .pricing-card .btn-pricing {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.7rem 2rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            width: 100%;
        }
        .pricing-card .btn-pricing:hover { background: var(--gradient-main); box-shadow: 0 0 20px rgba(106,13,173,0.4); }
        .pricing-card.featured .btn-pricing { background: var(--secondary); }
        .pricing-card.featured .btn-pricing:hover { background: var(--gradient-main); }

        /* cta */
        #signup-cta {
            background: linear-gradient(135deg, rgba(106,13,173,0.2), rgba(255,107,53,0.15)), var(--bg-dark);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 60px 0;
        }
        #signup-cta h2 { font-size: 2rem; color: var(--text-primary); margin-bottom: 0.75rem; }
        #signup-cta p { color: var(--text-muted); max-width: 600px; margin: 0 auto 2rem; font-size: 1.05rem; }
        #signup-cta .btn-cta {
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 1rem 3rem;
            font-size: 1.15rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        #signup-cta .btn-cta:hover { background: var(--gradient-main); box-shadow: 0 0 40px rgba(106,13,173,0.5); transform: translateY(-2px); }

        /* news */
        #news { background: var(--bg-dark); }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover { border-color: var(--border-hover); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
        .news-card .news-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(106,13,173,0.2);
            color: var(--primary-light);
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }
        .news-card .news-title { font-size: 1.05rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.5rem; line-height: 1.4; }
        .news-card .news-excerpt { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; flex: 1; margin-bottom: 1rem; }
        .news-card .news-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--text-muted); border-top: 1px solid var(--border-color); padding-top: 0.75rem; }
        .empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); font-size: 1rem; }

        /* faq */
        #faq { background: var(--bg-card); }
        .accordion-item {
            background: var(--bg-dark);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
        }
        .accordion-header button {
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            padding: 1rem 1.25rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .accordion-header button:hover { background: rgba(106,13,173,0.08); }
        .accordion-header button i { transition: transform 0.3s ease; color: var(--secondary); }
        .accordion-header button[aria-expanded="true"] i { transform: rotate(180deg); }
        .accordion-body { padding: 0 1.25rem 1.25rem; color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; }

        /* footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(106,13,173,0.2);
            padding: 60px 0 30px;
        }
        .site-footer .footer-brand { font-size: 1.2rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.75rem; display: flex; align-items: center; gap: 8px; }
        .site-footer .footer-brand i { color: var(--secondary); }
        .site-footer .footer-desc { color: var(--text-muted); font-size: 0.9rem; max-width: 300px; line-height: 1.7; }
        .site-footer h5 { color: var(--text-primary); font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }
        .site-footer ul { list-style: none; padding: 0; margin: 0; }
        .site-footer ul li { margin-bottom: 0.5rem; }
        .site-footer ul li a { color: var(--text-muted); font-size: 0.9rem; transition: var(--transition); }
        .site-footer ul li a:hover { color: var(--secondary); }
        .site-footer .social-links { display: flex; gap: 0.75rem; margin-top: 1rem; }
        .site-footer .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .social-links a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .footer-bottom { border-top: 1px solid var(--border-color); padding-top: 1.5rem; margin-top: 2rem; text-align: center; color: var(--text-muted); font-size: 0.85rem; }

        /* responsive */
        @media (max-width: 991px) {
            .nav-menu { display: none; }
            .navbar-toggler { display: block; }
            .nav-menu.show { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-dark); border-bottom: 1px solid var(--border-color); padding: 1rem 2rem; gap: 1rem; align-items: flex-start; }
            .search-box input { width: 120px; }
            .hero-content h1 { font-size: 2.4rem; }
            .hero-content .subtitle { font-size: 1.1rem; }
            .timeline-list::before { display: none; }
            .timeline-list { flex-direction: column; }
            .timeline-list li { display: flex; align-items: center; gap: 1rem; text-align: left; padding: 0.5rem 0; }
            .timeline-icon { width: 48px; height: 48px; font-size: 1rem; margin: 0; flex-shrink: 0; }
            .pricing-card.featured { transform: scale(1); }
            .pricing-card.featured:hover { transform: translateY(-4px); }
        }
        @media (max-width: 767px) {
            .hero-content h1 { font-size: 1.8rem; }
            .hero-content .subtitle { font-size: 1rem; }
            .hero-stats { gap: 1.5rem; }
            .hero-stats .stat-number { font-size: 1.5rem; }
            section { padding: 60px 0; }
            .section-title h2 { font-size: 1.6rem; }
            .search-box input { width: 100px; }
            .nav-cta { padding: 0.4rem 1rem; font-size: 0.8rem; }
            .site-footer .col-md-3 { margin-bottom: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero-content h1 { font-size: 1.5rem; }
            .hero-content .subtitle { font-size: 0.9rem; }
            .hero-buttons .btn-primary-custom, .hero-buttons .btn-secondary-custom { padding: 0.6rem 1.5rem; font-size: 0.9rem; width: 100%; justify-content: center; }
            .site-logo { font-size: 1rem; }
            .search-box { display: none; }
        }

/* roulang page: article */
:root {
            --primary: #6A0DAD;
            --primary-dark: #4B0A7A;
            --secondary: #FF6B35;
            --secondary-light: #FF8A55;
            --bg-dark: #0F0F0F;
            --bg-card: #1C1C1E;
            --bg-input: #2C2C2E;
            --border-color: #3A3A3C;
            --text-main: #F5F5F5;
            --text-muted: #9E9E9E;
            --text-title: #FFFFFF;
            --border-radius: 8px;
            --border-radius-lg: 12px;
            --box-shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --box-shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
            --transition: all 0.3s ease;
            --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

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

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover { color: var(--secondary); }

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

        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15,15,15,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-title);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo i { color: var(--secondary); font-size: 1.6rem; }
        .site-logo:hover { color: var(--secondary); }

        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            color: var(--text-title);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .navbar-toggler:hover { background: rgba(255,255,255,0.05); }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 6px;
            margin: 0;
            padding: 0;
            align-items: center;
        }
        .nav-menu li a {
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--text-title);
            background: rgba(106,13,173,0.15);
        }
        .nav-menu li a.active { color: var(--secondary); }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border-radius: 20px;
            padding: 0 14px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(106,13,173,0.2);
        }
        .search-box i { color: var(--text-muted); font-size: 0.9rem; margin-right: 8px; }
        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-main);
            padding: 8px 0;
            width: 140px;
            font-size: 0.9rem;
        }
        .search-box input::placeholder { color: var(--text-muted); }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 0 20px rgba(106,13,173,0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            min-height: 260px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            isolation: isolate;
            padding: 60px 0;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,15,15,0.75);
            z-index: 0;
        }
        .page-banner .container { position: relative; z-index: 1; }
        .page-banner h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 10px;
            list-style: none;
            padding: 0;
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .page-banner .breadcrumb a { color: var(--text-muted); }
        .page-banner .breadcrumb a:hover { color: var(--secondary); }
        .page-banner .breadcrumb .separator { color: var(--text-muted); }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-wrapper {
            max-width: 780px;
            margin: 0 auto;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .article-meta .category-tag {
            background: rgba(106,13,173,0.2);
            color: var(--secondary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-meta .date {
            color: var(--text-muted);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .date i { font-size: 0.8rem; }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-main);
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--text-title);
            margin: 36px 0 16px;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-title);
            margin: 28px 0 12px;
        }
        .article-body p {
            margin-bottom: 1.2em;
        }
        .article-body ul, .article-body ol {
            margin: 1em 0;
            padding-left: 1.5em;
        }
        .article-body li { margin-bottom: 0.5em; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 24px 0;
            background: rgba(106,13,173,0.08);
            border-radius: 0 8px 8px 0;
            color: var(--text-muted);
        }
        .article-body img {
            border-radius: 12px;
            margin: 24px 0;
            width: 100%;
            box-shadow: var(--box-shadow-lg);
        }
        .article-body a { color: var(--secondary); text-decoration: underline; }
        .article-body a:hover { color: var(--secondary-light); }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-title); margin-bottom: 16px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 8px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 0 20px rgba(106,13,173,0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 0 0 60px;
        }
        .related-section h3 {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section h3 i { color: var(--secondary); }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--border-radius-lg);
            border: 1px solid rgba(255,255,255,0.06);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: rgba(106,13,173,0.5);
            transform: translateY(-4px);
            box-shadow: var(--box-shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .related-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }
        .related-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .card-body .card-meta .tag {
            background: rgba(106,13,173,0.15);
            color: var(--secondary);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0B0B0B;
            border-top: 1px solid rgba(106,13,173,0.2);
            padding: 60px 0 30px;
            margin-top: 20px;
        }
        .site-footer h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 18px;
        }
        .site-footer ul { list-style: none; padding: 0; margin: 0; }
        .site-footer ul li { margin-bottom: 10px; }
        .site-footer ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 16px;
        }
        .footer-brand i { color: var(--secondary); font-size: 1.5rem; }
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .social-links { display: flex; gap: 12px; }
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--primary);
            color: var(--text-title);
            transform: translateY(-3px);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            margin-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .site-header { height: auto; padding: 12px 0; }
            .site-header .container { flex-wrap: wrap; }
            .navbar-toggler { display: block; order: 3; }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding: 16px 0 8px;
                order: 4;
            }
            .nav-menu.show { display: flex; }
            .nav-menu li a { width: 100%; padding: 10px 16px; }
            .nav-right { order: 2; margin-left: auto; }
            .search-box input { width: 100px; }
            .nav-cta .fa-download { display: none; }
            .page-banner { min-height: 200px; padding: 40px 0; }
            .page-banner h1 { font-size: 1.8rem; }
            .article-main { padding: 40px 0 60px; }
            .article-body { font-size: 1rem; }
        }

        @media (max-width: 767px) {
            .site-header .container { gap: 10px; }
            .site-logo { font-size: 1.1rem; }
            .site-logo i { font-size: 1.3rem; }
            .search-box { display: none; }
            .nav-cta { padding: 8px 14px; font-size: 0.85rem; }
            .nav-cta .fa-download { display: inline; }
            .page-banner { min-height: 160px; padding: 30px 0; }
            .page-banner h1 { font-size: 1.4rem; }
            .article-meta { gap: 12px; }
            .article-body h2 { font-size: 1.35rem; }
            .article-body h3 { font-size: 1.1rem; }
            .related-card .card-img { height: 140px; }
            .site-footer { padding: 40px 0 20px; }
            .footer-brand { font-size: 1.1rem; }
        }

        @media (max-width: 575px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.2rem; }
            .article-body { font-size: 0.95rem; }
            .article-not-found i { font-size: 3rem; }
            .article-not-found h2 { font-size: 1.4rem; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6A0DAD;
            --primary-dark: #4B0082;
            --primary-light: #8B2FC9;
            --secondary: #FF6B35;
            --secondary-light: #FF8A5C;
            --bg-dark: #0F0F0F;
            --bg-card: #1C1C1E;
            --bg-card-hover: #252528;
            --bg-input: #2C2C2E;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.05);
            --text-primary: #FFFFFF;
            --text-body: #F5F5F5;
            --text-muted: #9E9E9E;
            --text-dim: #6B6B6B;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 10px rgba(106, 13, 173, 0.4), 0 0 20px rgba(106, 13, 173, 0.2);
            --transition: all 0.3s ease;
            --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-dark);
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--text-body);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--secondary);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            transition: var(--transition);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 1rem;
            padding-right: 1rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 64px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

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

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        .site-logo i {
            color: var(--primary-light);
            font-size: 1.4rem;
        }

        .site-logo span {
            background: linear-gradient(135deg, var(--text-primary) 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .site-logo:hover span {
            background: linear-gradient(135deg, var(--secondary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 汉堡按钮 */
        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 0.25rem 0.5rem;
            cursor: pointer;
            border-radius: var(--radius-sm);
        }

        .navbar-toggler:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* 导航菜单 */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: inline-block;
            padding: 0.5rem 1rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            position: relative;
            transition: var(--transition);
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-menu li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-menu li a:hover::after {
            width: 60%;
        }

        .nav-menu li a.active {
            color: var(--text-primary);
            background: rgba(106, 13, 173, 0.15);
        }

        .nav-menu li a.active::after {
            width: 60%;
        }

        /* 右侧区域 */
        .nav-right {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border-radius: 20px;
            padding: 0.35rem 1rem 0.35rem 0.85rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(106, 13, 173, 0.2);
        }

        .search-box i {
            color: var(--text-dim);
            font-size: 0.9rem;
            margin-right: 0.5rem;
        }

        .search-box input {
            background: none;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.9rem;
            width: 100%;
        }

        .search-box input::placeholder {
            color: var(--text-dim);
            font-size: 0.85rem;
        }

        .nav-cta {
            background: var(--secondary);
            color: var(--text-primary);
            border: none;
            border-radius: var(--radius-md);
            padding: 0.5rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-cta i {
            font-size: 0.95rem;
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
        }

        /* ===== 内页 Banner ===== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 15, 15, 0.75);
            backdrop-filter: blur(2px);
            -webkit-backdrop-filter: blur(2px);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 2rem 1rem;
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: 1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .page-banner h1 span {
            background: linear-gradient(135deg, var(--secondary), #FFD700);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 5rem 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            text-align: center;
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 3rem auto;
            line-height: 1.7;
        }

        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0 auto 1.5rem auto;
        }

        /* ===== 攻略特色/卖点板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: rgba(106, 13, 173, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            background: var(--bg-card-hover);
        }

        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(106, 13, 173, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem auto;
            font-size: 1.6rem;
            color: var(--secondary);
            transition: var(--transition);
        }

        .feature-card:hover .icon-wrap {
            background: rgba(106, 13, 173, 0.25);
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 热门攻略卡片 ===== */
        .guide-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

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

        .guide-card:hover {
            border-color: rgba(106, 13, 173, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .guide-card .card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

        .guide-card:hover .card-img {
            transform: scale(1.03);
        }

        .guide-card .card-body {
            padding: 1.3rem 1.4rem 1.5rem;
        }

        .guide-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--secondary);
            background: rgba(255, 107, 53, 0.12);
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.6rem;
        }

        .guide-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .guide-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0.8rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        .guide-card .card-meta i {
            margin-right: 0.3rem;
        }

        .guide-card .card-link {
            color: var(--primary-light);
            font-weight: 500;
            font-size: 0.88rem;
        }

        .guide-card .card-link:hover {
            color: var(--secondary);
        }

        /* ===== 攻略创作流程 ===== */
        .process-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--secondary), transparent);
            border-radius: 4px;
        }

        .process-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 3rem;
            position: relative;
        }

        .process-item:nth-child(odd) {
            flex-direction: row;
        }

        .process-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .process-item .process-content {
            width: 42%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.8rem;
            transition: var(--transition);
        }

        .process-item .process-content:hover {
            border-color: rgba(106, 13, 173, 0.4);
            box-shadow: var(--shadow-sm);
        }

        .process-item .process-step {
            width: 16%;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .process-item .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 auto;
            box-shadow: 0 0 0 4px var(--bg-dark), 0 0 0 6px rgba(106, 13, 173, 0.2);
        }

        .process-item .process-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }

        .process-item .process-content p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(106, 13, 173, 0.3);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.4rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

        .faq-item .faq-question i {
            color: var(--text-dim);
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-item .faq-answer {
            padding: 0 1.4rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(106, 13, 173, 0.2), rgba(255, 107, 53, 0.15));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 4.5rem 0;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 2rem auto;
        }

        .cta-section .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.8rem 2.2rem;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .cta-section .cta-button:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #fff;
        }

        .cta-section .cta-button:active {
            transform: translateY(0);
        }

        .cta-section .cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.8rem 2rem;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            margin-left: 1rem;
            transition: var(--transition);
        }

        .cta-section .cta-secondary:hover {
            border-color: var(--primary);
            color: var(--text-primary);
            background: rgba(106, 13, 173, 0.1);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(106, 13, 173, 0.2);
            padding: 4rem 0 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 0.8rem;
        }

        .site-footer .footer-brand i {
            color: var(--primary-light);
        }

        .site-footer .footer-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .site-footer .social-links {
            display: flex;
            gap: 0.8rem;
        }

        .site-footer .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }

        .site-footer .social-links a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .site-footer h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .site-footer ul li a:hover {
            color: var(--secondary);
            padding-left: 3px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding: 1.5rem 0;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-dim);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .guide-cards {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-timeline::before {
                left: 24px;
            }

            .process-item,
            .process-item:nth-child(even) {
                flex-direction: row !important;
                padding-left: 56px;
            }

            .process-item .process-content {
                width: 70%;
            }

            .process-item .process-step {
                width: 48px;
                position: absolute;
                left: 0;
                top: 0;
            }

            .process-item .step-number {
                width: 40px;
                height: 40px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 767.98px) {
            .site-header {
                height: auto;
                padding: 0.6rem 0;
            }

            .site-header>.container {
                flex-wrap: wrap;
                gap: 0.5rem;
            }

            .navbar-toggler {
                display: block;
                order: 3;
            }

            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 4;
                background: var(--bg-dark);
                border-top: 1px solid var(--border-light);
                padding: 0.5rem 0 1rem;
                gap: 0;
            }

            .nav-menu.show {
                display: flex;
            }

            .nav-menu li a {
                padding: 0.6rem 0;
                display: block;
                border-bottom: 1px solid var(--border-light);
            }

            .nav-menu li a::after {
                display: none;
            }

            .nav-right {
                order: 2;
                gap: 0.5rem;
                flex: 1;
                justify-content: flex-end;
            }

            .search-box {
                width: 140px;
            }

            .nav-cta span {
                display: none;
            }

            .page-banner {
                min-height: 240px;
            }

            .page-banner h1 {
                font-size: 2rem;
            }

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

            .section {
                padding: 3rem 0;
            }

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

            .features-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .guide-cards {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .process-item .process-content {
                width: 100%;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .cta-section .cta-secondary {
                margin-left: 0;
                margin-top: 0.8rem;
            }

            .site-footer .col-md-4,
            .site-footer .col-md-2,
            .site-footer .col-md-3 {
                margin-bottom: 1.5rem;
            }
        }

        @media (max-width: 575.98px) {
            .search-box {
                width: 100px;
            }

            .search-box input {
                font-size: 0.8rem;
            }

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

            .section-title {
                font-size: 1.35rem;
            }

            .feature-card {
                padding: 1.5rem 1.2rem;
            }

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

            .cta-section .cta-button {
                width: 100%;
                justify-content: center;
            }

            .cta-section .cta-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn {
            border-radius: var(--radius-md) !important;
            font-weight: 600 !important;
        }

        .btn-primary {
            background: var(--secondary) !important;
            border-color: var(--secondary) !important;
            color: #fff !important;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
            border-color: var(--primary) !important;
            box-shadow: var(--shadow-glow) !important;
            transform: translateY(-1px);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.2) !important;
            color: var(--text-body) !important;
        }

        .btn-outline-light:hover {
            background: rgba(106, 13, 173, 0.15) !important;
            border-color: var(--primary) !important;
            color: #fff !important;
        }

        .row.g-4>[class*="col-"] {
            padding-top: 0;
        }

/* roulang page: category2 */
:root {
            --primary: #6A0DAD;
            --primary-dark: #4B0A7A;
            --primary-light: #8B2FC9;
            --secondary: #FF6B35;
            --secondary-dark: #E55A2B;
            --secondary-light: #FF8F5E;
            --bg-dark: #0F0F0F;
            --bg-card: #1C1C1E;
            --bg-card-hover: #262628;
            --text-primary: #F5F5F5;
            --text-secondary: #9E9E9E;
            --text-muted: #6B6B6B;
            --text-white: #FFFFFF;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(106, 13, 173, 0.6);
            --border-radius-sm: 6px;
            --border-radius-md: 8px;
            --border-radius-lg: 12px;
            --border-radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 10px rgba(106, 13, 173, 0.4), 0 0 20px rgba(106, 13, 173, 0.2);
            --transition: all 0.3s ease;
            --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            font-size: 1rem;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-white);
            font-weight: 600;
            line-height: 1.3;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            display: flex;
            align-items: center;
        }

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

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white) !important;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.4rem;
        }
        .site-logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transition: var(--transition);
            border-radius: 2px;
        }
        .nav-menu li a:hover {
            color: var(--text-white);
        }
        .nav-menu li a:hover::after {
            width: 100%;
        }
        .nav-menu li a.active {
            color: var(--text-white);
        }
        .nav-menu li a.active::after {
            width: 100%;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #2C2C2E;
            border-radius: 20px;
            padding: 0.35rem 1rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
            width: 180px;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(106, 13, 173, 0.2);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-right: 0.5rem;
        }
        .search-box input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .nav-cta {
            background: var(--secondary);
            color: var(--text-white);
            border: none;
            border-radius: var(--border-radius-md);
            padding: 0.5rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ===== Hero ===== */
        .page-hero {
            margin-top: 64px;
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            position: relative;
            padding: 4rem 0;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 15, 15, 0.75);
            backdrop-filter: blur(4px);
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff, var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 1.5rem;
            line-height: 1.8;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
            margin-top: 1.5rem;
        }
        .hero-tags span {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 0.3rem 1rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .hero-tags span i {
            color: var(--secondary);
        }

        /* ===== Section common ===== */
        .section-block {
            padding: 5rem 0;
        }
        .section-block .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-block .section-title h2 {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }
        .section-block .section-title p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            font-size: 1rem;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 3px;
            margin: 0.75rem auto 1.5rem;
        }

        /* ===== Benefits / 卖点卡片 ===== */
        .benefit-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .benefit-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            background: var(--bg-card-hover);
        }
        .benefit-card:hover::before {
            opacity: 1;
        }
        .benefit-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.5rem;
            background: rgba(106, 13, 173, 0.15);
            color: var(--primary-light);
            transition: var(--transition);
        }
        .benefit-card:hover .icon-wrap {
            background: rgba(106, 13, 173, 0.25);
            box-shadow: 0 0 20px rgba(106, 13, 173, 0.2);
        }
        .benefit-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }
        .benefit-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
        .benefit-card .badge-hot {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 12px;
            margin-top: 0.75rem;
            letter-spacing: 0.3px;
        }

        /* ===== Steps / 流程 ===== */
        .steps-section {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .step-item {
            text-align: center;
            padding: 1.5rem 1rem;
            position: relative;
        }
        .step-item .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .step-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1.4rem;
        }

        /* ===== Promo Cards / 活动卡片 ===== */
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .promo-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .promo-card .promo-img {
            height: 180px;
            background: var(--bg-card-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }
        .promo-card .promo-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .promo-card:hover .promo-img img {
            transform: scale(1.05);
        }
        .promo-card .promo-tag {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: var(--secondary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .promo-card .promo-body {
            padding: 1.25rem;
        }
        .promo-card .promo-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .promo-card .promo-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
            line-height: 1.5;
        }
        .promo-card .promo-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .promo-card .promo-meta .promo-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--border-radius-sm);
            padding: 0.3rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        .promo-card .promo-meta .promo-btn:hover {
            background: var(--primary-light);
            box-shadow: 0 0 12px rgba(106, 13, 173, 0.3);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            margin-bottom: 0.75rem;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(106, 13, 173, 0.3);
        }
        .faq-question {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 500;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--text-muted);
            transition: transform 0.3s ease;
            font-size: 1.1rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, rgba(106, 13, 173, 0.2), rgba(255, 107, 53, 0.15));
            border-top: 1px solid rgba(106, 13, 173, 0.2);
            border-bottom: 1px solid rgba(106, 13, 173, 0.2);
            text-align: center;
            padding: 4rem 0;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--border-radius-md);
            padding: 0.85rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        .cta-block .cta-btn:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #fff;
        }
        .cta-block .cta-btn i {
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(106, 13, 173, 0.2);
            padding: 3.5rem 0 2rem;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
            color: var(--text-white);
        }
        .site-footer .footer-brand i {
            color: var(--secondary);
        }
        .site-footer .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }
        .site-footer .social-links {
            display: flex;
            gap: 0.75rem;
        }
        .site-footer .social-links a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .site-footer .social-links a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .site-footer h5 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--text-white);
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .site-footer ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .search-box {
                width: 140px;
            }
            .nav-menu {
                gap: 1.25rem;
            }
            .page-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 767px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 1.5rem 2rem;
                gap: 1rem;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.35s ease;
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }
            .nav-menu.show {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-menu li a {
                font-size: 1.05rem;
            }
            .nav-right {
                gap: 0.6rem;
            }
            .search-box {
                width: 120px;
            }
            .nav-cta span {
                display: none;
            }
            .nav-cta i {
                margin: 0;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .hero-tags span {
                font-size: 0.75rem;
                padding: 0.2rem 0.8rem;
            }

            .section-block {
                padding: 3rem 0;
            }
            .section-block .section-title h2 {
                font-size: 1.5rem;
            }

            .step-arrow {
                transform: rotate(90deg);
                padding: 0.5rem 0;
            }

            .cta-block h2 {
                font-size: 1.5rem;
            }
            .cta-block .cta-btn {
                padding: 0.7rem 1.8rem;
                font-size: 1rem;
            }

            .site-footer .footer-brand {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding: 0 1rem;
            }
            .page-hero {
                min-height: 40vh;
                padding: 3rem 0;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .search-box {
                width: 100px;
            }
            .search-box input {
                font-size: 0.75rem;
            }
            .benefit-card {
                padding: 1.5rem 1rem;
            }
            .benefit-card .icon-wrap {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
            .promo-card .promo-img {
                height: 140px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1.1rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
        }

        /* ===== Bootstrap overrides ===== */
        .btn-primary,
        .btn-secondary,
        .btn-outline-primary {
            border-radius: var(--border-radius-md) !important;
            font-weight: 600 !important;
            transition: var(--transition) !important;
        }
        .btn-primary {
            background: var(--secondary) !important;
            border-color: var(--secondary) !important;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
            border-color: var(--primary) !important;
            box-shadow: var(--shadow-glow) !important;
        }
        .btn-outline-primary {
            color: var(--text-white) !important;
            border-color: var(--primary) !important;
        }
        .btn-outline-primary:hover {
            background: var(--primary) !important;
            border-color: var(--primary) !important;
        }
        .row.g-4>[class*="col-"] {
            padding: 0.75rem;
        }
        .bg-dark {
            background-color: var(--bg-dark) !important;
        }
        .text-muted {
            color: var(--text-muted) !important;
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-grid {
            background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 40px 40px;
        }
        .mb-gap {
            margin-bottom: 1.5rem;
        }