/* roulang page: index */
:root {
            --primary: #1a4fd0;
            --primary-dark: #0e2f8f;
            --primary-light: #e8f0ff;
            --accent: #ffb830;
            --accent-dark: #e69c00;
            --dark: #0c1222;
            --light: #f4f7fc;
            --white: #ffffff;
            --text: #1c2434;
            --muted: #657086;
            --border: #e4e9f2;
            --radius: 20px;
            --radius-sm: 12px;
            --shadow: 0 16px 50px rgba(12, 20, 40, 0.10);
            --shadow-sm: 0 6px 20px rgba(12, 20, 40, 0.06);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.35, 1);
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--light);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ==================== Header ==================== */
        .topbar {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.78);
            font-size: 13px;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .topbar a {
            color: rgba(255, 255, 255, 0.78);
            margin-left: 16px;
        }

        .topbar a:hover {
            color: var(--accent);
        }

        .main-nav {
            background: var(--white);
            padding: 0;
            box-shadow: 0 2px 18px rgba(12, 20, 40, 0.04);
            position: sticky;
            top: 0;
            z-index: 999;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 0;
        }

        .brand-badge {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            letter-spacing: 1px;
            box-shadow: 0 6px 16px rgba(26, 79, 208, 0.25);
        }

        .brand-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--dark);
            line-height: 1.2;
        }

        .brand-text small {
            display: block;
            font-weight: 400;
            font-size: 12px;
            color: var(--muted);
        }

        .main-nav .navbar-nav {
            gap: 4px;
        }

        .main-nav .nav-link {
            font-weight: 500;
            color: var(--text);
            padding: 22px 16px !important;
            border-bottom: 3px solid transparent;
            font-size: 15px;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .btn-brand,
        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(26, 79, 208, 0.22);
        }

        .btn-brand:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(26, 79, 208, 0.32);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: #fff;
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(20,30,50,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
        }

        /* ==================== Hero ==================== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #fff;
            background: var(--dark);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            transform: scale(1.05);
            animation: heroZoom 18s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            from {
                transform: scale(1.05);
            }
            to {
                transform: scale(1.12);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 10, 26, 0.92) 0%, rgba(10, 20, 50, 0.72) 50%, rgba(26, 79, 208, 0.55) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 90px 20px;
            max-width: 860px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 22px;
        }

        .hero-section h1 {
            font-size: clamp(34px, 5.5vw, 60px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 2px;
            margin-bottom: 18px;
            text-shadow: 0 6px 30px rgba(0, 0, 0, 0.25);
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.86);
            max-width: 620px;
            margin: 0 auto 34px;
            line-height: 1.8;
        }

        .hero-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 42px;
        }

        .hero-btn-group .btn {
            min-width: 160px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.88);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-meta i {
            color: var(--accent);
        }

        /* ==================== Section ==================== */
        .section {
            padding: 90px 0;
        }

        .section-alt {
            background: var(--white);
        }

        .section-sub {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-head {
            text-align: center;
            max-width: 620px;
            margin: 0 auto 50px;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
        }

        /* ==================== Feature Cards ==================== */
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 36px 30px;
            height: 100%;
            border: 1px solid var(--border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: var(--primary-light);
            position: absolute;
            right: -26px;
            top: -26px;
            opacity: 0.6;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 26px;
            margin-bottom: 22px;
            box-shadow: 0 10px 24px rgba(26, 79, 208, 0.28);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .feature-card p {
            color: var(--muted);
            font-size: 14px;
            margin: 0;
        }

        /* ==================== Category Cards ==================== */
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            display: block;
            height: 100%;
            min-height: 320px;
            color: #fff;
            background: var(--dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow);
            color: #fff;
        }

        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform 0.6s ease;
        }

        .category-card:hover img {
            transform: scale(1.08);
        }

        .category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.1) 0%, rgba(10, 15, 30, 0.85) 78%, rgba(10, 15, 30, 0.92) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px;
        }

        .category-overlay .badge {
            background: var(--accent);
            color: var(--dark);
            font-weight: 700;
            font-size: 12px;
            padding: 5px 14px;
            border-radius: 50px;
            width: fit-content;
            margin-bottom: 12px;
        }

        .category-overlay h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .category-overlay p {
            font-size: 14px;
            opacity: 0.85;
            margin-bottom: 16px;
        }

        .category-link {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 1px;
        }

        /* ==================== Flow / Process ==================== */
        .flow-section {
            background: linear-gradient(135deg, #0c1222 0%, #14213d 100%);
            color: #fff;
        }

        .flow-section .section-head h2,
        .flow-section .section-head p {
            color: #fff;
        }

        .flow-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .flow-card {
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        .flow-step {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 2px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            margin: 0 auto 20px;
            position: relative;
            z-index: 1;
        }

        .flow-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .flow-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin: 0;
        }

        .flow-card::after {
            content: "";
            position: absolute;
            top: 50px;
            right: -16%;
            width: 32%;
            height: 2px;
            background: linear-gradient(90deg, rgba(255, 184, 48, 0.6), transparent);
        }

        .flow-card:last-child::after {
            display: none;
        }

        /* ==================== News / List ==================== */
        .news-card {
            display: block;
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow);
            color: inherit;
            border-color: transparent;
        }

        .news-thumb {
            position: relative;
            height: 190px;
            overflow: hidden;
            background: var(--dark);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.08);
        }

        .news-content {
            padding: 24px;
        }

        .news-content .badge {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            font-size: 12px;
            padding: 5px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .news-content h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-content p {
            color: var(--muted);
            font-size: 14px;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-meta i {
            color: var(--primary);
        }

        .empty-news {
            text-align: center;
            padding: 60px 20px;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--muted);
            font-size: 16px;
            width: 100%;
        }

        /* ==================== FAQ ==================== */
        .faq-wrap .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-wrap .accordion-button {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            font-size: 16px;
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(26, 79, 208, 0.12);
            border-color: transparent;
        }

        .faq-wrap .accordion-body {
            padding: 20px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ==================== CTA ==================== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 90px 0;
            color: #fff;
            text-align: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(12, 18, 34, 0.92) 0%, rgba(26, 79, 208, 0.72) 100%);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 17px;
            margin-bottom: 30px;
        }

        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-btns .btn {
            padding: 13px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
        }

        .btn-accent,
        .btn-accent:hover {
            background: var(--accent);
            color: var(--dark);
            border: none;
            box-shadow: 0 8px 24px rgba(255, 184, 48, 0.35);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        /* ==================== Footer ==================== */
        .site-footer {
            background: #0a0f1e;
            color: rgba(255, 255, 255, 0.72);
            padding-top: 70px;
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul a:hover {
            color: var(--accent);
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            margin-top: 50px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ==================== Responsive ==================== */
        @media (max-width: 1024px) {
            .section {
                padding: 70px 0;
            }
            .flow-card::after {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .topbar {
                font-size: 12px;
            }
            .topbar-right a {
                margin-left: 10px;
            }
            .main-nav .nav-link {
                padding: 14px 16px !important;
                border-bottom: none;
                border-left: 3px solid transparent;
            }
            .main-nav .nav-link.active {
                border-left-color: var(--primary);
            }
            .navbar-brand {
                padding: 12px 0;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 70px 20px;
            }
            .hero-section h1 {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .flow-card {
                padding: 24px 12px;
            }
            .cta-section {
                padding: 60px 0;
                background-attachment: scroll;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
            .site-footer {
                padding-top: 50px;
            }
            .footer-bottom {
                margin-top: 30px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-btn-group .btn {
                min-width: 100%;
            }
            .hero-meta {
                gap: 14px;
                font-size: 13px;
            }
            .category-card {
                min-height: 250px;
            }
            .section {
                padding: 55px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .news-thumb {
                height: 160px;
            }
            .cta-btns .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d1f3c;
            --primary-light: #16294a;
            --primary-dark: #081527;
            --accent: #d4af37;
            --accent-dark: #b8932e;
            --accent-light: #f3e8c0;
            --bg: #f5f7fb;
            --card-bg: #ffffff;
            --text: #17233b;
            --text-weak: #5e6b81;
            --border: #e4e9f2;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 12px 32px rgba(13, 31, 60, 0.08);
            --shadow-hover: 0 18px 44px rgba(13, 31, 60, 0.15);
            --transition: all 0.35s ease;
        }

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

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        .section {
            padding: 90px 0;
            position: relative;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-dark);
            background: rgba(212, 175, 55, 0.1);
            border: 1px solid rgba(212, 175, 55, 0.25);
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 18px;
        }

        .section-title {
            font-size: clamp(28px, 3.6vw, 40px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-weak);
            max-width: 680px;
            margin-bottom: 0;
        }

        .text-gold {
            color: var(--accent-dark) !important;
        }

        .btn-brand {
            background: var(--accent);
            color: #fff !important;
            border: none;
            border-radius: 12px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
            transition: var(--transition);
        }

        .btn-brand:hover,
        .btn-brand:focus {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(184, 147, 46, 0.35);
        }

        .btn-outline-light-custom {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.45);
            color: #fff !important;
            border-radius: 12px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .btn-outline-light-custom:hover,
        .btn-outline-light-custom:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* Topbar */
        .topbar {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .topbar a {
            color: rgba(255, 255, 255, 0.75);
            margin-left: 18px;
        }

        .topbar a:hover {
            color: var(--accent);
        }

        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* Main Nav */
        .main-nav {
            background: #fff;
            box-shadow: 0 4px 24px rgba(13, 31, 60, 0.06);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1040;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-badge {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            padding: 8px 14px;
            border-radius: 12px;
            letter-spacing: 0.02em;
            box-shadow: 0 6px 16px rgba(212, 175, 55, 0.3);
        }

        .brand-text {
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }

        .brand-text small {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-weak);
            letter-spacing: 0.08em;
        }

        .main-nav .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 10px 16px;
            margin: 0 2px;
            border-radius: 10px;
            position: relative;
        }

        .main-nav .navbar-nav .nav-link:hover,
        .main-nav .navbar-nav .nav-link:focus {
            color: var(--accent-dark);
            background: rgba(212, 175, 55, 0.06);
        }

        .main-nav .navbar-nav .nav-link.active {
            color: var(--accent-dark);
            font-weight: 700;
        }

        .main-nav .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            box-shadow: none !important;
        }

        .navbar-toggler-icon {
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%230d1f3c' stroke-width='2.5' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(110deg, rgba(8, 21, 39, 0.92) 0%, rgba(13, 31, 60, 0.78) 50%, rgba(22, 41, 74, 0.55) 100%);
            overflow: hidden;
            padding: 110px 0;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
            z-index: -1;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 20%, rgba(212, 175, 55, 0.15) 0%, transparent 50%);
            z-index: -1;
        }

        .page-hero .breadcrumb-holder {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .page-hero .breadcrumb-holder a {
            color: rgba(255, 255, 255, 0.7);
        }

        .page-hero .breadcrumb-holder a:hover {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: clamp(32px, 4.6vw, 54px);
            font-weight: 800;
            color: #fff;
            line-height: 1.18;
            margin-bottom: 20px;
            letter-spacing: -0.015em;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 720px;
            margin-bottom: 34px;
            line-height: 1.8;
        }

        .hero-badges {
            display: flex;
            gap: 18px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .hero-badge-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 8px 16px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }

        .hero-badge-item i {
            color: var(--accent);
        }

        /* Login Ways Cards */
        .login-ways {
            background: var(--bg);
        }

        .way-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 30px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .way-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-dark));
            opacity: 0;
            transition: var(--transition);
        }

        .way-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(212, 175, 55, 0.35);
        }

        .way-card:hover::before {
            opacity: 1;
        }

        .way-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 22px;
            box-shadow: 0 8px 20px rgba(13, 31, 60, 0.2);
        }

        .way-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .way-card p {
            color: var(--text-weak);
            font-size: 15px;
            margin-bottom: 18px;
        }

        .way-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(212, 175, 55, 0.08);
            border: 1px solid rgba(212, 175, 55, 0.2);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
        }

        /* Steps Timeline */
        .steps-section {
            background: var(--primary);
            color: #fff;
        }

        .steps-section .section-title {
            color: #fff;
        }

        .steps-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .step-line {
            position: relative;
            padding-left: 30px;
            margin-bottom: 36px;
        }

        .step-line::before {
            content: "";
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(255, 255, 255, 0.15);
        }

        .step-line:last-child::before {
            bottom: auto;
            height: 60px;
        }

        .step-dot {
            position: absolute;
            left: 0;
            top: 4px;
            width: 22px;
            height: 22px;
            background: var(--accent);
            border: 3px solid var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
            z-index: 1;
        }

        .step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .step-line h3 {
            font-size: 21px;
            color: #fff;
            font-weight: 700;
            margin: 6px 0 10px;
        }

        .step-line p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            line-height: 1.75;
            max-width: 720px;
        }

        .step-tip {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-sm);
            padding: 14px 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            display: inline-flex;
            gap: 10px;
            align-items: flex-start;
            margin-top: 12px;
        }

        .step-tip i {
            color: var(--accent);
            margin-top: 3px;
        }

        /* Security Tips */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .security-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .security-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .security-item i {
            font-size: 30px;
            color: var(--accent-dark);
            margin-bottom: 16px;
            display: inline-block;
        }

        .security-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .security-item p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 0;
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(13, 31, 60, 0.04);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(212, 175, 55, 0.3);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--accent-dark);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item details[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item details[open] summary {
            color: var(--accent-dark);
        }

        .faq-body {
            padding: 0 24px 22px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        /* Related Cards */
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(212, 175, 55, 0.35);
        }

        .related-card .rc-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .related-card:hover .rc-img img {
            transform: scale(1.06);
        }

        .related-card .rc-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(13, 31, 60, 0.3));
        }

        .related-card .rc-body {
            padding: 26px 26px 10px;
            flex: 1;
        }

        .related-card .rc-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .related-card .rc-body p {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 14px;
        }

        .related-card .rc-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .rc-link:hover {
            gap: 10px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            padding: 60px 0;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 30px;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 62px 0 0;
            font-size: 15px;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .footer-about {
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

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

        .site-footer ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 22px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .page-hero {
                padding: 80px 0;
            }

            .topbar .container {
                flex-direction: column;
                gap: 4px;
                text-align: center;
            }

            .topbar-right {
                display: none;
            }

            .brand-text {
                font-size: 17px;
            }

            .navbar-brand {
                gap: 8px;
            }

            .brand-badge {
                font-size: 14px;
                padding: 6px 10px;
            }

            .main-nav .navbar-nav .nav-link {
                padding: 10px 18px;
            }

            .main-nav .navbar-nav .nav-link.active::after {
                left: 18px;
            }
        }

        @media (max-width: 520px) {
            .security-grid {
                grid-template-columns: 1fr;
            }

            .hero-badges {
                gap: 10px;
            }

            .hero-badge-item {
                font-size: 13px;
                padding: 6px 12px;
            }

            .btn-brand,
            .btn-outline-light-custom {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #0b1526;
            --primary-light: #14243c;
            --accent: #c9a45c;
            --accent-2: #e5c776;
            --accent-dark: #a9863f;
            --bg: #f4f6fb;
            --bg-alt: #ffffff;
            --text: #1d2b3a;
            --muted: #6d7a8c;
            --border: #e7ebf2;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(10, 20, 40, .08);
            --shadow-lg: 0 20px 50px rgba(10, 20, 40, .14);
            --transition: all .25s ease;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--accent-dark);
        }

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

        .container {
            max-width: 1200px;
        }

        .btn {
            border-radius: 50px;
            font-weight: 600;
            padding: 12px 28px;
            transition: var(--transition);
        }

        .btn-brand {
            background: linear-gradient(135deg, var(--accent-2), var(--accent));
            color: #14233b;
            border: none;
            box-shadow: 0 6px 20px rgba(201, 164, 92, .3);
        }

        .btn-brand:hover,
        .btn-brand:focus {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #0b1526;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 164, 92, .4);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .8);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .14);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus,
        .form-control:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 164, 92, .25);
        }

        /* ===== Header ===== */
        .site-header {
            background: #fff;
            box-shadow: 0 2px 14px rgba(10, 20, 40, .04);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .topbar {
            background: var(--primary);
            color: rgba(255, 255, 255, .85);
            font-size: 13px;
            padding: 8px 0;
        }

        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .topbar a {
            color: rgba(255, 255, 255, .8);
            margin-left: 18px;
        }

        .topbar a:hover {
            color: var(--accent-2);
        }

        .main-nav {
            padding: 14px 0;
            background: #fff;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0;
        }

        .brand-badge {
            background: linear-gradient(135deg, var(--accent-2), var(--accent));
            color: #0b1526;
            font-size: 18px;
            font-weight: 800;
            border-radius: 12px;
            padding: 8px 14px;
            letter-spacing: 1px;
            box-shadow: 0 4px 14px rgba(201, 164, 92, .25);
        }

        .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .brand-text small {
            display: block;
            font-size: 11px;
            color: var(--muted);
            font-weight: 400;
            letter-spacing: 2px;
        }

        .main-nav .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 8px 16px;
            border-radius: 30px;
            margin: 0 2px;
            position: relative;
        }

        .main-nav .navbar-nav .nav-link:hover {
            color: var(--accent-dark);
            background: rgba(201, 164, 92, .08);
        }

        .main-nav .navbar-nav .nav-link.active {
            color: var(--accent-dark);
            background: rgba(201, 164, 92, .12);
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(11,21,38,0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Banner ===== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 120px 0 64px;
            color: #fff;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 21, 38, .78) 0%, rgba(11, 21, 38, .38) 100%);
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-custom {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, .85);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-2);
        }

        .page-hero h1 {
            font-size: 2.7rem;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.28;
            max-width: 900px;
            margin: 0 0 12px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, .3);
        }

        .page-hero .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            letter-spacing: 1px;
        }

        /* ===== Article Section ===== */
        .article-section {
            padding: 64px 0;
            background: var(--bg);
        }

        .article-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 42px 44px;
            box-shadow: var(--shadow);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--muted);
            padding-bottom: 18px;
            margin-bottom: 26px;
            border-bottom: 1px solid var(--border);
        }

        .badge-cate {
            display: inline-flex;
            align-items: center;
            background: rgba(201, 164, 92, .14);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 13px;
            border-radius: 30px;
            padding: 5px 14px;
        }

        .article-content {
            font-size: 16px;
            color: #2a3648;
        }

        .article-content p {
            margin-bottom: 1.25rem;
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--primary);
            margin-top: 1.8rem;
            margin-bottom: .9rem;
            font-weight: 700;
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 1.25rem;
            padding-left: 1.25rem;
        }

        .article-content li {
            margin-bottom: .4rem;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.5rem 0;
        }

        .article-content blockquote {
            background: rgba(201, 164, 92, .08);
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--primary);
            margin: 1.5rem 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 12px 14px;
        }

        .article-content th {
            background: rgba(201, 164, 92, .1);
            font-weight: 600;
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--muted);
            font-size: 14px;
        }

        .article-share a {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--primary);
        }

        .article-share a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .not-found {
            text-align: center;
            padding: 50px 20px;
            color: var(--muted);
        }

        .not-found h3 {
            color: var(--primary);
            margin: 18px 0 10px;
            font-weight: 700;
        }

        .not-found .btn {
            margin-top: 18px;
        }

        /* ===== Sidebar ===== */
        .article-sidebar .side-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 26px;
            margin-bottom: 24px;
        }

        .side-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            border-bottom: 2px solid rgba(201, 164, 92, .35);
            padding-bottom: 14px;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
        }

        .side-nav {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .side-nav li {
            border-bottom: 1px dashed var(--border);
        }

        .side-nav li:last-child {
            border-bottom: none;
        }

        .side-nav a {
            display: flex;
            align-items: center;
            padding: 11px 4px;
            color: var(--text);
            font-size: 15px;
        }

        .side-nav a:hover {
            color: var(--accent-dark);
            padding-left: 10px;
        }

        .side-card-dark {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            border: none;
            color: #fff;
            overflow: hidden;
        }

        .side-card-dark::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(11, 21, 38, .82), rgba(11, 21, 38, .5));
        }

        .side-card-dark h4,
        .side-card-dark p {
            position: relative;
            z-index: 1;
        }

        .side-card-dark p {
            color: rgba(255, 255, 255, .82);
            font-size: 14px;
            margin-bottom: 16px;
        }

        .side-card-dark .btn {
            position: relative;
            z-index: 1;
        }

        .safe-tips li {
            font-size: 14px;
            color: var(--muted);
            padding: 7px 0;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 72px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .section-head {
            text-align: center;
            margin-bottom: 42px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(201, 164, 92, .14);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            border-radius: 30px;
            padding: 5px 16px;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }

        .section-head p {
            color: var(--muted);
            font-size: 15px;
            max-width: 560px;
            margin: 8px auto 0;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .related-card .card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .related-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 21, 38, .18));
        }

        .related-card .card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-body h5 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .related-card .card-body p {
            font-size: 14px;
            color: var(--muted);
            flex: 1;
        }

        .related-card .card-link {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .card-link:hover {
            color: var(--primary);
            gap: 10px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            padding: 90px 0;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 21, 38, .88), rgba(11, 21, 38, .55));
        }

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

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .82);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 0;
        }

        .site-footer .footer-brand {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .footer-about {
            font-size: 14px;
            line-height: 1.8;
            margin: 14px 0;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

        .site-footer ul li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .site-footer ul a {
            color: rgba(255, 255, 255, .7);
        }

        .site-footer ul a:hover {
            color: var(--accent-2);
        }

        .footer-bottom {
            margin-top: 44px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, .1);
            text-align: center;
            font-size: 13px;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .page-hero {
                padding: 90px 0 50px;
            }

            .page-hero h1 {
                font-size: 2.1rem;
            }

            .article-card {
                padding: 28px;
            }

            .main-nav .navbar-nav {
                margin-top: 12px;
            }

            .main-nav .navbar-nav .nav-link {
                padding: 10px 14px;
            }
        }

        @media (max-width: 767.98px) {
            .topbar .container {
                justify-content: center;
            }

            .topbar-right a {
                margin-left: 12px;
            }

            .page-hero h1 {
                font-size: 1.7rem;
            }

            .article-section {
                padding: 42px 0;
            }

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

            .cta-section {
                padding: 60px 0;
            }

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

            .article-card {
                padding: 20px;
            }
        }

        @media (max-width: 575.98px) {
            .brand-text {
                font-size: 14px;
            }

            .brand-text small {
                font-size: 10px;
            }

            .brand-badge {
                font-size: 15px;
                padding: 6px 10px;
            }

            .page-hero {
                padding: 70px 0 36px;
            }

            .page-hero h1 {
                font-size: 1.5rem;
            }

            .hero-sub {
                font-size: 14px;
            }

            .breadcrumb-custom {
                font-size: 13px;
                gap: 6px;
            }

            .side-card {
                padding: 20px;
            }

            .related-card .card-img {
                height: 170px;
            }

            .cta-buttons .btn {
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a1a2e;
            --primary-rgb: 26, 26, 46;
            --secondary: #16213e;
            --accent: #e94560;
            --accent2: #f5a623;
            --light: #f8f9fc;
            --dark: #0f1021;
            --text: #2d3436;
            --muted: #6c7a8a;
            --border: #e9edf2;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            background: var(--white);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--white);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
        }

        .topbar {
            background: var(--dark);
            padding: 8px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
        }

        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .topbar a {
            color: rgba(255, 255, 255, 0.85);
            margin-left: 20px;
            font-size: 13px;
        }

        .topbar a:hover {
            color: var(--accent2);
        }

        .main-nav {
            padding: 14px 0;
            background: var(--white);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
        }

        .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--white);
            font-size: 14px;
            font-weight: 800;
            padding: 8px 14px;
            border-radius: 12px;
            letter-spacing: 1px;
            box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
        }

        .brand-text small {
            font-size: 11px;
            font-weight: 500;
            color: var(--muted);
            letter-spacing: 1px;
        }

        .main-nav .nav-link {
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            padding: 8px 16px !important;
            border-radius: 8px;
            position: relative;
        }

        .main-nav .nav-link:hover {
            color: var(--accent);
            background: rgba(233, 69, 96, 0.05);
        }

        .main-nav .nav-link.active {
            color: var(--accent) !important;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .btn-brand {
            background: var(--accent);
            color: var(--white);
            border: none;
            padding: 10px 22px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 14px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(233, 69, 96, 0.3);
        }

        .btn-brand:hover {
            background: #d63950;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(233, 69, 96, 0.4);
            color: var(--white);
        }

        .btn-brand:focus {
            outline: 3px solid rgba(233, 69, 96, 0.4);
            outline-offset: 2px;
        }

        .btn-outline-brand {
            background: transparent;
            border: 2px solid var(--accent);
            color: var(--accent);
            padding: 8px 20px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
        }

        .btn-outline-brand:hover {
            background: var(--accent);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(233, 69, 96, 0.25);
        }

        .navbar-toggler {
            border: none;
            padding: 6px 10px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,26,46,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Hero / Banner ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 16, 33, 0.92), rgba(26, 26, 46, 0.85)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0 110px;
            color: var(--white);
            text-align: center;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to bottom, transparent, rgba(15, 16, 33, 0.6));
            border-bottom-left-radius: 50% 20%;
            border-bottom-right-radius: 50% 20%;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 13px;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: 1px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 28px;
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-meta i {
            color: var(--accent2);
        }

        /* ===== Section ===== */
        .section-block {
            padding: 80px 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(233, 69, 96, 0.08);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--muted);
            font-size: 16px;
            max-width: 600px;
            margin-bottom: 40px;
        }

        .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Activity Cards ===== */
        .activity-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .activity-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .activity-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .activity-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .activity-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .activity-card .card-img-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.35));
        }

        .activity-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .activity-card .card-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 10px;
        }

        .activity-card .card-date i {
            color: var(--accent);
        }

        .activity-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .activity-card .card-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
        }

        .activity-card .card-footer {
            background: transparent;
            border-top: 1px solid var(--border);
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .activity-card .card-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .activity-card .card-link:hover {
            gap: 10px;
        }

        .badge-hot {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--white);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            z-index: 2;
            box-shadow: 0 4px 10px rgba(233, 69, 96, 0.4);
        }

        .badge-new {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent2);
            color: var(--white);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            z-index: 2;
            box-shadow: 0 4px 10px rgba(245, 166, 35, 0.4);
        }

        /* ===== Notice List ===== */
        .notice-list {
            background: var(--light);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid var(--border);
        }

        .notice-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px dashed var(--border);
            transition: var(--transition);
        }

        .notice-item:last-child {
            border-bottom: none;
        }

        .notice-item:hover {
            padding-left: 10px;
        }

        .notice-item .notice-type {
            flex-shrink: 0;
            background: rgba(233, 69, 96, 0.08);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            margin-top: 4px;
        }

        .notice-item:nth-child(2n) .notice-type {
            background: rgba(245, 166, 35, 0.12);
            color: #b97e12;
        }

        .notice-item:nth-child(3n) .notice-type {
            background: rgba(26, 26, 46, 0.06);
            color: var(--primary);
        }

        .notice-item .notice-content {
            flex: 1;
        }

        .notice-item .notice-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .notice-item .notice-content p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 0;
        }

        .notice-item .notice-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--muted);
            white-space: nowrap;
            margin-top: 4px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark), var(--secondary));
            padding: 70px 0;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(233, 69, 96, 0.15);
        }

        .stats-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.08);
        }

        .stat-item {
            text-align: center;
            padding: 20px;
            position: relative;
            z-index: 2;
        }

        .stat-item .stat-icon {
            font-size: 36px;
            color: var(--accent2);
            margin-bottom: 12px;
        }

        .stat-item .stat-num {
            font-size: 42px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--white), rgba(255, 255, 255, 0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* ===== Timeline ===== */
        .timeline-wrap {
            padding: 20px 0;
        }

        .timeline-item {
            display: flex;
            gap: 24px;
            margin-bottom: 36px;
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 39px;
            top: 50px;
            bottom: -36px;
            width: 2px;
            background: var(--border);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-item .timeline-dot {
            width: 80px;
            height: 80px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent), var(--accent2));
            font-size: 24px;
            font-weight: 800;
            color: var(--white);
            box-shadow: 0 6px 18px rgba(233, 69, 96, 0.3);
            flex-shrink: 0;
        }

        .timeline-dot.phase-2 {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
        }

        .timeline-dot.phase-3 {
            background: linear-gradient(135deg, var(--accent2), #e08b1a);
        }

        .timeline-item .timeline-body {
            flex: 1;
            background: var(--light);
            border-radius: var(--radius);
            padding: 24px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .timeline-item .timeline-body:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .timeline-item .timeline-body h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-item .timeline-body p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--light);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid var(--border);
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 14px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(233, 69, 96, 0.3);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }

        .faq-item h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 0;
        }

        .faq-item h5::before {
            content: 'Q';
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            background: var(--accent);
            color: var(--white);
            font-size: 13px;
            font-weight: 800;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--muted);
            margin-top: 12px;
            margin-bottom: 0;
            padding-left: 36px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(15, 16, 33, 0.94), rgba(26, 26, 46, 0.88)),
                url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 80px 0;
            color: var(--white);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 480px;
            margin: 0 auto 28px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 64px;
        }

        .site-footer h4 {
            color: var(--white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .site-footer h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .site-footer ul li {
            padding: 5px 0;
            font-size: 14px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--accent2);
            padding-left: 4px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 14px;
        }

        .footer-about {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            text-align: center;
            margin-top: 40px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            background: var(--accent);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 6px 16px rgba(233, 69, 96, 0.4);
            transition: var(--transition);
            z-index: 999;
            border: none;
        }

        .back-top:hover {
            transform: translateY(-4px);
            background: #d63950;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 38px;
            }

            .section-block {
                padding: 64px 0;
            }

            .section-title {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .topbar .container {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }

            .topbar a {
                margin-left: 10px;
                font-size: 12px;
            }

            .navbar-brand {
                flex-wrap: wrap;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-badge {
                font-size: 12px;
                padding: 6px 10px;
            }

            .main-nav .nav-link.active::after {
                display: none;
            }

            .main-nav .navbar-nav {
                padding: 14px 0;
            }

            .main-nav .nav-link {
                padding: 10px 16px !important;
            }

            .btn-brand.ms-lg-3 {
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
                text-align: center;
            }

            .page-hero {
                padding: 60px 0 80px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .hero-meta {
                gap: 16px;
                font-size: 13px;
                flex-direction: column;
            }

            .section-block {
                padding: 48px 0;
            }

            .section-title {
                font-size: 24px;
            }

            .section-desc {
                font-size: 14px;
            }

            .activity-card .card-img-wrap {
                height: 160px;
            }

            .notice-list {
                padding: 24px;
            }

            .notice-item {
                flex-direction: column;
                gap: 8px;
            }

            .notice-item .notice-date {
                white-space: normal;
            }

            .timeline-item {
                flex-direction: column;
                gap: 12px;
            }

            .timeline-item::before {
                display: none;
            }

            .timeline-dot {
                width: 60px;
                height: 60px;
                font-size: 18px;
            }

            .faq-section {
                padding: 24px;
            }

            .faq-item p {
                padding-left: 0;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-section h2 {
                font-size: 26px;
            }

            .back-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .topbar-left {
                font-size: 12px;
            }

            .topbar a {
                font-size: 11px;
            }

            .navbar-brand .brand-text small {
                font-size: 10px;
            }

            .page-hero h1 {
                font-size: 22px;
            }

            .page-hero p {
                font-size: 14px;
            }

            .section-title {
                font-size: 20px;
            }

            .hero-meta {
                font-size: 12px;
            }

            .activity-card .card-title {
                font-size: 16px;
            }

            .notice-item .notice-content h4 {
                font-size: 15px;
            }

            .stats-section {
                padding: 48px 0;
            }

            .stat-item .stat-num {
                font-size: 32px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0a1936;
            --primary-light: #132a52;
            --primary-dark: #050f22;
            --accent: #c9a86a;
            --accent-light: #e0c88f;
            --accent-dark: #a8874a;
            --body-bg: #f7f5f1;
            --body-text: #22304a;
            --muted: #6b7a90;
            --border: #e4e0d8;
            --white: #ffffff;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(10,25,54,0.06);
            --shadow-md: 0 8px 30px rgba(10,25,54,0.10);
            --shadow-lg: 0 20px 50px rgba(10,25,54,0.14);
            --transition: all 0.3s ease;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--body-bg);
            color: var(--body-text);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        a:hover { color: var(--accent); }
        ul { list-style: none; padding: 0; margin: 0; }
        .container { max-width: 1220px; padding-left: 24px; padding-right: 24px; }
        .section { padding: 90px 0; position: relative; }
        .section-sm { padding: 60px 0; }
        .bg-white { background: var(--white); }
        .text-accent { color: var(--accent); }
        .text-muted-2 { color: var(--muted); }

        /* ===== Header / Nav ===== */
        .site-header { position: sticky; top: 0; z-index: 1060; background: var(--white); box-shadow: 0 4px 24px rgba(10,25,54,0.07); }
        .topbar {
            background: var(--primary);
            color: rgba(255,255,255,0.9);
            font-size: 13px;
            padding: 6px 0;
        }
        .topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px 20px; }
        .topbar a { color: rgba(255,255,255,0.85); margin-left: 16px; transition: var(--transition); }
        .topbar a:hover { color: var(--accent-light); }
        .main-nav {
            padding: 12px 0;
            background: var(--white);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 28px;
        }
        .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            color: var(--white);
            font-size: 16px;
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 8px;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 12px rgba(201,168,106,0.4);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .brand-text small {
            font-size: 12px;
            color: var(--muted);
            font-weight: 400;
            letter-spacing: 1px;
        }
        .main-nav .nav-link {
            font-size: 15px;
            color: var(--body-text);
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
        }
        .main-nav .nav-link:hover { color: var(--accent); background: rgba(201,168,106,0.08); }
        .main-nav .nav-link.active { color: var(--accent); background: rgba(201,168,106,0.12); font-weight: 600; }
        .btn-brand {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--white);
            border: none;
            border-radius: 50px;
            padding: 9px 26px;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 14px rgba(201,168,106,0.35);
            transition: var(--transition);
        }
        .btn-brand:hover { color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 22px rgba(201,168,106,0.5); }
        .btn-brand-outline {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            border-radius: 50px;
            padding: 8px 24px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
        }
        .btn-brand-outline:hover { background: var(--accent); color: var(--white); }
        .navbar-toggler { border: none; padding: 6px 10px; border-radius: 8px; }
        .navbar-toggler:focus { box-shadow: none; border: 1px solid var(--border); }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(10,25,54,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 100px 0 110px;
            background: linear-gradient(rgba(5,15,34,0.82), rgba(10,25,54,0.72)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--white);
            text-align: center;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201,168,106,0.15);
            border: 1px solid rgba(201,168,106,0.4);
            color: var(--accent-light);
            padding: 7px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 22px;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .page-hero p.lead {
            font-size: 18px;
            color: rgba(255,255,255,0.85);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .page-hero .hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .page-hero .breadcrumb-nav {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            background: rgba(255,255,255,0.1);
            border-radius: 50px;
            padding: 6px 22px;
            backdrop-filter: blur(4px);
        }
        .page-hero .breadcrumb-nav a { color: var(--accent-light); }

        /* ===== Stats Strip ===== */
        .stats-strip {
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }
        .stats-strip .stat-card {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 26px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stats-strip .stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .stat-card .num { font-size: 34px; font-weight: 800; color: var(--primary); line-height: 1.2; }
        .stat-card .num span { color: var(--accent); }
        .stat-card .label { font-size: 14px; color: var(--muted); margin-top: 8px; }

        /* ===== Feature Blocks ===== */
        .section-head { max-width: 720px; margin: 0 auto 50px; text-align: center; }
        .section-head .eyebrow {
            display: inline-block;
            background: rgba(201,168,106,0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: 5px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
        }
        .section-head h2 { font-size: 34px; font-weight: 700; color: var(--primary); margin-bottom: 14px; }
        .section-head p { color: var(--muted); font-size: 16px; }

        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .feature-card:hover::after { transform: scaleX(1); }
        .feature-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(201,168,106,0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .feature-card h3 { font-size: 18px; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
        .feature-card p { color: var(--muted); font-size: 14px; margin-bottom: 16px; line-height: 1.7; }
        .feature-card .tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent-dark);
            background: rgba(201,168,106,0.12);
            padding: 3px 12px;
            border-radius: 50px;
        }

        /* ===== Cover Cards ===== */
        .cover-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .cover-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
        .cover-card .cover-img { height: 190px; overflow: hidden; position: relative; }
        .cover-card .cover-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .cover-card:hover .cover-img img { transform: scale(1.05); }
        .cover-card .cover-img .mask {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(5,15,34,0.5));
        }
        .cover-card .cover-body { padding: 22px; }
        .cover-card .cover-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(201,168,106,0.1);
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            border: 1px solid rgba(201,168,106,0.25);
        }
        .cover-card h3 { font-size: 18px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .cover-card p { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
        .cover-card .meta { font-size: 13px; color: var(--muted); }

        /* ===== Tier / Level Cards ===== */
        .tier-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 2px solid var(--border);
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .tier-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            background: linear-gradient(180deg, var(--white), rgba(201,168,106,0.05));
        }
        .tier-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .tier-card .tier-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin: 0 auto 16px;
            background: rgba(201,168,106,0.12);
            color: var(--accent);
        }
        .tier-card.featured .tier-icon { background: var(--accent); color: var(--white); }
        .tier-card h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
        .tier-card .tier-desc { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
        .tier-card ul { text-align: left; margin: 0 0 20px; }
        .tier-card ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--body-text);
            border-bottom: 1px dashed var(--border);
        }
        .tier-card ul li:last-child { border-bottom: none; }
        .tier-card ul li i { color: var(--accent); margin-right: 8px; font-size: 13px; }
        .tier-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent);
            color: var(--white);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
        }

        /* ===== Process Steps ===== */
        .process-section { background: var(--primary); color: var(--white); }
        .process-section .section-head h2 { color: var(--white); }
        .process-section .section-head p { color: rgba(255,255,255,0.7); }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--white);
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 16px rgba(201,168,106,0.4);
        }
        .process-step h4 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
        .process-step p { color: rgba(255,255,255,0.65); font-size: 14px; }
        .process-step::after {
            content: '\f105';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            color: rgba(255,255,255,0.25);
            font-size: 22px;
            z-index: 2;
        }
        .process-step:last-child::after { display: none; }

        /* ===== FAQ ===== */
        .faq-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-card:hover { box-shadow: var(--shadow-md); }
        .faq-card .faq-q {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-card .faq-q span:last-child {
            color: var(--accent);
            font-size: 18px;
            transition: transform 0.3s ease;
        }
        .faq-card.open .faq-q span:last-child { transform: rotate(45deg); }
        .faq-card .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-card.open .faq-a {
            padding: 0 24px 20px;
            max-height: 400px;
        }
        .faq-card .faq-a p { color: var(--muted); font-size: 14px; line-height: 1.8; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(rgba(5,15,34,0.85), rgba(10,25,54,0.85)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            color: var(--white);
            text-align: center;
            padding: 88px 0;
            position: relative;
        }
        .cta-section h2 { font-size: 34px; font-weight: 700; margin-bottom: 14px; }
        .cta-section p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 30px; font-size: 16px; }
        .cta-section .btn-brand { font-size: 16px; padding: 12px 38px; }

        /* ===== Footer ===== */
        .site-footer { background: var(--primary-dark); color: #b7c1d4; font-size: 14px; }
        .site-footer .footer-brand { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 16px; }
        .site-footer .footer-about { font-size: 14px; line-height: 1.8; color: #8895aa; margin-bottom: 14px; }
        .site-footer h4 { color: var(--white); font-size: 16px; font-weight: 600; margin-bottom: 18px; }
        .site-footer ul li { padding: 5px 0; }
        .site-footer ul li a { color: #8895aa; transition: var(--transition); }
        .site-footer ul li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            margin-top: 50px;
        }
        .footer-bottom p { margin: 0; font-size: 13px; color: #78859a; text-align: center; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-hero { padding: 80px 0 90px; }
            .page-hero h1 { font-size: 36px; }
            .section { padding: 70px 0; }
            .process-step::after { display: none; }
        }
        @media (max-width: 768px) {
            .topbar { display: none; }
            .page-hero { padding: 70px 0 80px; }
            .page-hero h1 { font-size: 30px; }
            .page-hero p.lead { font-size: 16px; }
            .section { padding: 55px 0; }
            .section-head h2 { font-size: 28px; }
            .stats-strip { margin-top: -30px; }
            .stat-card .num { font-size: 28px; }
            .navbar-collapse { padding: 16px 0; }
            .navbar-nav .nav-link { padding: 10px 0 !important; }
            .btn-brand.ms-lg-3 { margin-left: 0; margin-top: 12px; display: inline-block; }
        }
        @media (max-width: 520px) {
            .page-hero h1 { font-size: 25px; }
            .page-hero p.lead { font-size: 15px; }
            .hero-actions .btn { width: 100%; }
            .section-head h2 { font-size: 24px; }
            .brand-text { font-size: 15px; }
            .brand-text small { font-size: 11px; }
            .brand-badge { font-size: 13px; padding: 5px 10px; }
            .stat-card .num { font-size: 24px; }
            .cta-section h2 { font-size: 24px; }
        }