/* roulang page: index */
:root {
            --primary: #0d1f3c;
            --primary-light: #1b3a6b;
            --accent: #ff6b26;
            --accent-hover: #e75f1e;
            --gold: #ffb54d;
            --dark-bg: #0a182c;
            --bg-light: #f5f7fb;
            --bg-white: #ffffff;
            --text-strong: #111a2a;
            --text-mid: #35415a;
            --text-weak: #6f7d95;
            --border: #e7ecf2;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow: 0 8px 24px rgba(13, 31, 60, 0.08);
            --shadow-hover: 0 14px 38px rgba(13, 31, 60, 0.14);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-mid);
            background-color: var(--bg-white);
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 90px 0;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(255, 107, 38, 0.1);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== Header/Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(13, 31, 60, 0.05);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: 0.5px;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(255, 107, 38, 0.3);
        }

        .navbar-nav {
            align-items: center;
            gap: 4px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-mid) !important;
            padding: 8px 20px !important;
            border-radius: 50px;
            border: 1px solid transparent;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover {
            color: var(--accent) !important;
            background: rgba(255, 107, 38, 0.06);
            border-color: rgba(255, 107, 38, 0.2);
        }

        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: var(--accent);
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(255, 107, 38, 0.35);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 38, 0.2);
        }

        .navbar-toggler-icon {
            display: inline-block;
            width: 22px;
            height: 22px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(13,31,60,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
            background-size: 18px;
            background-position: center;
            background-repeat: no-repeat;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), #ff8a3d);
            color: #fff;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            padding: 10px 26px;
            font-size: 15px;
            box-shadow: 0 4px 14px rgba(255, 107, 38, 0.3);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 107, 38, 0.4);
            color: #fff;
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(255, 107, 38, 0.3);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.8);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            padding: 10px 28px;
            font-size: 15px;
            transition: var(--transition);
            background: transparent;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            border-color: #fff;
        }

        .btn-accent-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        .btn-outline-light-lg {
            padding: 13px 34px;
            font-size: 16px;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(135deg, rgba(10, 24, 44, 0.92), rgba(13, 31, 60, 0.78)), url('/assets/images/backpic/back-1.png') no-repeat center center/cover;
            min-height: 720px;
            display: flex;
            align-items: center;
            position: relative;
            color: #fff;
            padding: 80px 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(255, 107, 38, 0.18), transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            text-align: center;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--gold);
            font-size: 14px;
            font-weight: 600;
            padding: 7px 22px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-content h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero-content h1 span {
            color: var(--gold);
        }

        .hero-content .hero-desc {
            font-size: 18px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 52px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 620px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            backdrop-filter: blur(10px);
        }

        .hero-stats .stat {
            text-align: center;
            padding: 8px;
        }

        .hero-stats .stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.3;
        }

        .hero-stats .stat span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
            display: inline-block;
        }

        /* ===== Features ===== */
        .features {
            background: var(--bg-white);
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 30px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            border-radius: 20px 20px 0 0;
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 38, 0.2);
        }

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

        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, rgba(255, 107, 38, 0.12), rgba(255, 181, 77, 0.12));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 28px;
            color: var(--accent);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            color: #fff;
            transform: scale(1.05) rotate(-3deg);
        }

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

        .feature-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

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

        .cat-card {
            display: block;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            text-decoration: none;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            border: 1px solid var(--border);
        }

        .cat-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 38, 0.25);
        }

        .cat-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .cat-img::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(13, 31, 60, 0.5));
        }

        .cat-body {
            padding: 28px 26px 30px;
            text-align: center;
        }

        .cat-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 107, 38, 0.1);
            padding: 4px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .cat-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }

        .cat-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .cat-arrow {
            display: inline-block;
            margin-top: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-light);
            border: 1px solid var(--border);
            line-height: 36px;
            color: var(--text-mid);
            font-size: 14px;
            transition: var(--transition);
        }

        .cat-card:hover .cat-arrow {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        /* ===== News ===== */
        .news {
            background: var(--bg-white);
        }

        .news-card {
            display: flex;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }

        .news-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(180deg, var(--accent), var(--gold));
            opacity: 0;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 38, 0.2);
        }

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

        .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 107, 38, 0.1);
            padding: 3px 14px;
            border-radius: 50px;
            letter-spacing: 0.5px;
        }

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

        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .news-card:hover .news-more {
            color: var(--accent);
            gap: 10px;
        }

        .empty-tip {
            text-align: center;
            background: var(--bg-light);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 60px 24px;
            color: var(--text-weak);
            font-size: 16px;
        }

        /* ===== Stats ===== */
        .stats-block {
            background: linear-gradient(rgba(10, 24, 44, 0.92), rgba(10, 24, 44, 0.92)), url('/assets/images/backpic/back-2.png') no-repeat center center/cover;
            padding: 90px 0;
            position: relative;
            color: #fff;
        }

        .stats-block .section-head h2 {
            color: #fff;
        }

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

        .stats-block .section-tag {
            background: rgba(255, 181, 77, 0.15);
            color: var(--gold);
        }

        .stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 36px 20px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .stat-item .num {
            font-size: 44px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            display: block;
        }

        .stat-item .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 10px;
            display: block;
        }

        /* ===== Process ===== */
        .process {
            background: var(--bg-white);
        }

        .process-item {
            text-align: center;
            position: relative;
            padding: 30px 20px;
        }

        .process-icon {
            width: 76px;
            height: 76px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 24px;
            margin: 0 auto 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--gold);
            box-shadow: 0 8px 22px rgba(13, 31, 60, 0.25);
            position: relative;
            z-index: 2;
        }

        .process-item .step-num {
            position: absolute;
            top: 20px;
            right: calc(50% - 60px);
            background: var(--accent);
            color: #fff;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 700;
            line-height: 26px;
            text-align: center;
            box-shadow: 0 4px 10px rgba(255, 107, 38, 0.3);
            z-index: 3;
        }

        .process-item h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }

        .process-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 220px;
            margin: 0 auto;
        }

        .process-line {
            position: absolute;
            top: 68px;
            left: calc(50% + 40px);
            right: calc(-50% + 40px);
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
            display: none;
        }

        @media (min-width: 992px) {
            .process-col:not(:last-child) .process-line {
                display: block;
            }
        }

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

        .faq-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: 0 2px 10px rgba(13, 31, 60, 0.04);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-card:hover {
            border-color: rgba(255, 107, 38, 0.18);
            box-shadow: var(--shadow);
        }

        .faq-card .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            background: transparent;
            padding: 22px 26px;
            box-shadow: none;
            border: none;
            position: relative;
            text-align: left;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }

        .faq-card .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 38, 0.12);
        }

        .faq-card .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            background: none;
            width: auto;
            height: auto;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-card .accordion-button:not(.collapsed)::after {
            content: "\f077";
            transform: none;
        }

        .faq-card .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: rgba(255, 107, 38, 0.04);
        }

        .faq-card .accordion-collapse {
            border-top: 1px solid var(--border);
        }

        .faq-card .accordion-body {
            padding: 20px 26px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-mid);
            background: var(--bg-white);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            padding: 70px 0;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 181, 77, 0.15), transparent 70%);
            pointer-events: none;
        }

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

        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-gold {
            background: linear-gradient(135deg, var(--gold), #ffcf7d);
            color: var(--primary);
            border: none;
            border-radius: 50px;
            font-weight: 700;
            padding: 14px 36px;
            font-size: 16px;
            box-shadow: 0 6px 20px rgba(255, 181, 77, 0.35);
            transition: var(--transition);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 181, 77, 0.45);
            color: var(--primary);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            padding: 14px 36px;
            font-size: 16px;
            transition: var(--transition);
        }

        .btn-ghost-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            font-size: 15px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-contact {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 2.1;
        }

        .footer-contact i {
            color: var(--gold);
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .navbar-collapse {
                background: #fff;
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow);
                border: 1px solid var(--border);
            }

            .navbar-nav {
                gap: 4px;
                width: 100%;
            }

            .navbar-nav .nav-link {
                text-align: center;
            }

            .navbar-nav .nav-item.cta-mobile {
                margin-top: 12px;
            }

            .navbar-nav .nav-item.cta-mobile .btn-accent {
                display: block;
                width: 100%;
                text-align: center;
            }

            .hero {
                min-height: 600px;
                padding: 60px 0;
            }

            .hero-content h1 {
                font-size: 38px;
            }

            .hero-content .hero-desc {
                font-size: 16px;
            }

            .section {
                padding: 70px 0;
            }

            .section-head h2 {
                font-size: 30px;
            }

            .stats-block .stat-item .num {
                font-size: 36px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .hero {
                min-height: 540px;
            }

            .hero-content h1 {
                font-size: 30px;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
                padding: 16px 12px;
            }

            .hero-stats .stat strong {
                font-size: 22px;
            }

            .hero-stats .stat span {
                font-size: 12px;
            }

            .section-head {
                margin-bottom: 36px;
            }

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

            .feature-card {
                padding: 30px 22px;
            }

            .cat-img {
                height: 180px;
            }

            .process-icon {
                width: 64px;
                height: 64px;
                font-size: 24px;
            }

            .process-item .step-num {
                right: calc(50% - 44px);
                top: 16px;
            }

            .cta-inner h2 {
                font-size: 28px;
            }

            .cta-btns {
                flex-direction: column;
                align-items: center;
            }

            .btn-gold,
            .btn-ghost-light {
                width: 100%;
                max-width: 320px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 56px 0;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 5px 14px;
            }

            .hero-btns {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }

            .hero-btns .btn {
                width: 100%;
                max-width: 300px;
                text-align: center;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }

            .hero-stats .stat {
                padding: 6px;
            }

            .hero-stats .stat:last-child {
                grid-column: span 2;
            }

            .news-card {
                padding: 20px;
            }

            .stat-item .num {
                font-size: 30px;
            }

            .faq-card .accordion-button {
                font-size: 14px;
                padding: 18px;
            }

            .faq-card .accordion-body {
                padding: 16px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d6e6e;
            --primary-dark: #0a5454;
            --primary-light: #e6f4f4;
            --secondary: #f0b429;
            --secondary-light: #fdf3d7;
            --accent: #e85d2a;
            --accent-light: #fdeadd;
            --bg-light: #f6f9f9;
            --bg-white: #ffffff;
            --text-main: #1a2b3c;
            --text-muted: #5c7285;
            --border: #dfe8e8;
            --border-light: #ecf2f2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 20px rgba(13, 110, 110, 0.07);
            --shadow-hover: 0 10px 30px rgba(13, 110, 110, 0.13);
            --shadow-header: 0 2px 16px rgba(13, 110, 110, 0.06);
            --transition: 0.3s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            color: var(--text-main);
            background: var(--bg-white);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1180px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 0.65rem 1.5rem;
            border: none;
            transition: all var(--transition);
            font-size: 15px;
        }

        .btn:focus,
        .btn:active:focus,
        .btn-ghost:focus,
        .btn-accent:focus {
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 110, 0.2);
        }

        .btn-accent {
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 0.55rem 1.4rem;
            font-size: 14px;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(13, 110, 110, 0.25);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 999px;
            padding: 0.55rem 1.4rem;
            font-size: 14px;
            font-weight: 600;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
        }

        .section-head {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-head .eyebrow {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 0.25rem 1rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-header);
            position: sticky;
            top: 0;
            z-index: 1030;
        }

        .site-header .navbar {
            padding-top: 0.7rem;
            padding-bottom: 0.7rem;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .navbar-brand:hover {
            color: var(--primary-dark);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            color: #fff;
            font-size: 16px;
        }

        .site-header .nav-link {
            color: var(--text-main);
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 999px;
            margin: 0 0.2rem;
            font-size: 15px;
            transition: all var(--transition);
        }

        .site-header .nav-link:hover,
        .site-header .nav-link:focus {
            color: var(--primary);
            background: var(--primary-light);
        }

        .site-header .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .navbar-toggler {
            border: none;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 8px;
            width: 44px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 0.2rem rgba(13, 110, 110, 0.15);
        }

        .navbar-toggler-icon {
            width: 1.1em;
            height: 1.1em;
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: var(--bg-white);
                border-radius: var(--radius);
                padding: 1rem;
                box-shadow: var(--shadow-card);
                margin-top: 0.5rem;
                border: 1px solid var(--border-light);
            }

            .site-header .nav-link {
                text-align: center;
                margin: 0.2rem 0;
            }

            .site-header .btn-accent {
                margin-top: 0.5rem;
            }
        }

        /* ===== Page Banner / Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(13, 110, 110, 0.92), rgba(10, 84, 84, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 5.5rem 0 4.5rem;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .page-hero .hero-lead {
            max-width: 720px;
            margin: 0 auto 1.2rem;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.92);
        }

        .breadcrumb-wrap {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 0.35rem 1.2rem;
            border-radius: 999px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(8px);
        }

        .breadcrumb-wrap a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb-wrap a:hover {
            color: #fff;
        }

        .breadcrumb-wrap .sep {
            opacity: 0.6;
        }

        .hero-badges {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1.2rem;
        }

        .hero-badges .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            padding: 0.4rem 1rem;
            font-size: 13px;
            backdrop-filter: blur(4px);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 3.5rem 0 2.8rem;
            }

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

        /* ===== Sections ===== */
        .section-block {
            padding: 4.5rem 0;
        }

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

        /* ===== Guide Cards ===== */
        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(13, 110, 110, 0.25);
        }

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

        .guide-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 1.2rem;
            background: var(--primary-light);
            color: var(--primary);
        }

        .guide-card:nth-child(2) .guide-icon {
            background: var(--secondary-light);
            color: #d19a22;
        }

        .guide-card:nth-child(3) .guide-icon {
            background: var(--accent-light);
            color: var(--accent);
        }

        .guide-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }

        .guide-card p {
            color: var(--text-muted);
            font-size: 14.5px;
            margin-bottom: 1rem;
        }

        .guide-tag {
            display: inline-block;
            font-size: 12.5px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            font-weight: 500;
        }

        /* ===== Steps ===== */
        .step-wrap {
            position: relative;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            padding-left: 4.2rem;
            margin-bottom: 2rem;
            counter-increment: step;
        }

        .step-item::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 0;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(13, 110, 110, 0.25);
        }

        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 24px;
            top: 52px;
            bottom: -1rem;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), transparent);
            opacity: 0.2;
        }

        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 1.5rem 1.8rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .step-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.45rem;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 14.5px;
            margin-bottom: 0;
        }

        @media (max-width: 575.98px) {
            .step-item {
                padding-left: 3.6rem;
            }

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

            .step-item:not(:last-child)::after {
                left: 20px;
            }
        }

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

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(13, 110, 110, 0.25);
        }

        .article-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .article-thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(13, 110, 110, 0.9);
            color: #fff;
            font-weight: 500;
            font-size: 12px;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .article-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
            line-height: 1.5;
        }

        .article-body h3 a {
            color: var(--text-main);
        }

        .article-body h3 a:hover {
            color: var(--primary);
        }

        .article-body p {
            color: var(--text-muted);
            font-size: 14px;
            flex: 1;
            margin-bottom: 1rem;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 0.7rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(13, 110, 110, 0.3);
            box-shadow: var(--shadow-card);
        }

        .faq-q {
            font-weight: 600;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .faq-q .faq-icon {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }

        .faq-a {
            color: var(--text-muted);
            font-size: 14.5px;
            margin-top: 0.6rem;
            margin-left: 2.1rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 3.5rem 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            left: -120px;
            top: -160px;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            right: -80px;
            bottom: -120px;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            border-radius: 999px;
            padding: 0.6rem 1.6rem;
            font-weight: 600;
            transition: all var(--transition);
        }

        .btn-white:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            color: var(--primary-dark);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .btn-ghost-light {
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            border-radius: 999px;
            padding: 0.6rem 1.6rem;
            font-weight: 600;
            transition: all var(--transition);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Quick Links ===== */
        .quick-item {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 0.9rem 1.2rem;
            transition: all var(--transition);
            height: 100%;
        }

        .quick-item:hover {
            border-color: rgba(13, 110, 110, 0.3);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .quick-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .quick-item span {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1a2b3c;
            color: #9fb3c8;
            padding-top: 3.5rem;
            font-size: 14.5px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .site-footer .footer-brand .brand-icon {
            background: linear-gradient(135deg, #2ebdbd, #0d6e6e);
        }

        .site-footer .footer-desc {
            margin-bottom: 0;
            line-height: 1.8;
            max-width: 460px;
        }

        .site-footer .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1.1rem;
        }

        .site-footer .footer-links li {
            margin-bottom: 0.45rem;
        }

        .site-footer .footer-links a {
            color: #9fb3c8;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .site-footer .footer-contact p {
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .site-footer .footer-contact i {
            color: #2ebdbd;
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.2rem 0;
            text-align: center;
            margin-top: 2.5rem;
            font-size: 13.5px;
        }

        .footer-bottom p {
            margin-bottom: 0;
        }

        .footer-bottom a {
            color: #9fb3c8;
        }

        @media (max-width: 767.98px) {
            .section-block {
                padding: 3rem 0;
            }

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

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

            .site-footer {
                padding-top: 2.5rem;
            }

            .site-footer .footer-brand {
                margin-bottom: 0.8rem;
            }
        }

/* roulang page: article */
:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f1f3a;
    --accent: #f97316;
    --accent-hover: #ea580c;
    --accent-light: #fff7ed;
    --success: #10b981;
    --body-bg: #f5f8fc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.06);
    --shadow-md: 0 8px 24px rgba(30, 41, 59, 0.08);
    --shadow-lg: 0 16px 40px rgba(30, 41, 59, 0.12);
    --transition: all 0.3s ease;
    --section-pad: 80px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Roboto, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
input, button, textarea { font-family: inherit; }
:focus-visible { outline: 3px solid rgba(249, 115, 22, 0.45); outline-offset: 2px; border-radius: 4px; }
.container { max-width: 1200px; }

/* ===== Header & Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    box-shadow: 0 2px 16px rgba(15, 31, 58, 0.05);
}
.navbar { padding: 12px 0; }
.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.navbar-brand:hover { color: var(--primary); opacity: 0.9; }
.brand-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #fb923c);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.15rem;
    box-shadow: 0 6px 16px rgba(249, 115, 22, 0.3);
    flex-shrink: 0;
}
.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-main);
    padding: 8px 16px !important;
    border-radius: 8px;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
}
.navbar-nav .nav-link:hover { color: var(--primary); background: #f1f5f9; }
.navbar-nav .nav-link.active { color: var(--accent); font-weight: 600; background: var(--accent-light); }
.navbar-toggler { border: none; padding: 6px 10px; border-radius: 10px; background: #f1f5f9; }
.navbar-toggler:focus { box-shadow: none; border: 1px solid var(--accent); }
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #fb923c);
    color: #fff;
    padding: 10px 24px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}
.btn-accent:hover { background: linear-gradient(135deg, var(--accent-hover), var(--accent)); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35); }
.btn-accent:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3); }
.cta-mobile .btn-accent { border-radius: 10px; }

/* ===== Article Hero ===== */
.article-hero {
    background: linear-gradient(100deg, rgba(15, 31, 58, 0.93) 0%, rgba(26, 54, 93, 0.85) 55%, rgba(44, 82, 130, 0.55) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    padding: 70px 0 80px;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.article-hero::after {
    content: '';
    position: absolute;
    bottom: -40px;
    right: -20px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(249, 115, 22, 0.15);
    filter: blur(50px);
}
.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
}
.breadcrumb-nav a { color: rgba(255, 255, 255, 0.8); }
.breadcrumb-nav a:hover { color: var(--accent); }
.breadcrumb-nav .sep { opacity: 0.5; font-size: 0.75rem; }
.breadcrumb-nav .current { color: #fff; font-weight: 500; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(249, 115, 22, 0.18);
    border: 1px solid rgba(249, 115, 22, 0.4);
    color: #fdba74;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
}
.article-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.35;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    max-width: 780px;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.85);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); }

/* ===== Article Main ===== */
.article-main { padding: 60px 0 70px; }
.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 42px 48px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}
.article-content { font-size: 1rem; line-height: 1.9; color: #334155; }
.article-content h2 { font-size: 1.5rem; font-weight: 700; color: var(--primary); margin: 32px 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.article-content h3 { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin: 26px 0 12px; }
.article-content p { margin-bottom: 18px; }
.article-content ul { margin-bottom: 18px; padding-left: 6px; }
.article-content ul li { position: relative; padding-left: 24px; margin-bottom: 8px; }
.article-content ul li::before { content: ''; position: absolute; left: 0; top: 11px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.article-content ol { padding-left: 24px; margin-bottom: 18px; }
.article-content ol li { margin-bottom: 8px; padding-left: 6px; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(44, 82, 130, 0.3); }
.article-content a:hover { color: var(--accent); border-color: var(--accent); }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--accent-light); padding: 14px 20px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 20px; color: #7c4a03; }
.article-content img { border-radius: var(--radius-md); margin: 20px 0; box-shadow: var(--shadow-md); }
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; border-radius: var(--radius-sm); overflow: hidden; }
.article-content table th { background: var(--primary); color: #fff; padding: 12px 16px; font-weight: 600; }
.article-content table td { padding: 10px 16px; border-bottom: 1px solid var(--border-color); }

/* Tags */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 26px; margin-top: 30px; border-top: 1px solid var(--border-color); }
.article-tags .tag-label { display: inline-flex; align-items: center; gap: 6px; font-size: 0.85rem; color: var(--text-muted); font-weight: 600; margin-right: 6px; }
.article-tags .tag {
    display: inline-block;
    background: #f1f5f9;
    color: var(--primary);
    padding: 5px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
}
.article-tags .tag:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* Share */
.article-share { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.share-btns { display: flex; gap: 8px; }
.share-btns a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #f1f5f9;
    color: var(--primary);
    font-size: 0.95rem;
    transition: var(--transition);
}
.share-btns a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); box-shadow: 0 6px 14px rgba(249, 115, 22, 0.3); }

/* Not Found */
.not-found { text-align: center; padding: 60px 20px; }
.not-found .nf-icon { font-size: 3.5rem; color: #cbd5e1; margin-bottom: 20px; }
.not-found h2 { font-size: 1.6rem; color: var(--primary); font-weight: 700; margin-bottom: 12px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }
.btn-primary-custom {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); color: #fff; padding: 11px 28px;
    border-radius: 12px; font-weight: 600; font-size: 0.95rem;
    border: none; transition: var(--transition); box-shadow: 0 4px 14px rgba(26, 54, 93, 0.25);
}
.btn-primary-custom:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(26, 54, 93, 0.3); }

/* ===== Sidebar ===== */
.sidebar-item { margin-bottom: 26px; }
.sidebar-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 240, 0.7);
    padding: 26px 24px;
    transition: var(--transition);
}
.sidebar-card:hover { box-shadow: var(--shadow-md); }
.sidebar-title { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); display: inline-block; }
.sidebar-list li { border-bottom: 1px dashed var(--border-color); }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a { display: flex; align-items: center; gap: 8px; padding: 10px 0; font-size: 0.9rem; color: var(--text-main); }
.sidebar-list a .arrow { color: var(--accent); font-size: 0.75rem; transition: transform 0.3s ease; }
.sidebar-list a:hover { color: var(--primary); }
.sidebar-list a:hover .arrow { transform: translateX(4px); }
.sidebar-help { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border-radius: var(--radius-md); padding: 28px 24px; }
.sidebar-help .sh-icon { font-size: 2rem; margin-bottom: 14px; color: #fdba74; }
.sidebar-help h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.sidebar-help p { font-size: 0.88rem; color: rgba(255, 255, 255, 0.85); margin-bottom: 18px; }
.sidebar-help .btn-light-custom { display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: #fff; padding: 8px 18px; border-radius: 10px; font-size: 0.85rem; font-weight: 600; transition: var(--transition); }
.sidebar-help .btn-light-custom:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); }
.sidebar-quick a { display: flex; align-items: center; gap: 10px; padding: 9px 0; font-size: 0.9rem; color: var(--text-main); border-bottom: 1px dashed var(--border-color); }
.sidebar-quick a:last-child { border-bottom: none; }
.sidebar-quick a:hover { color: var(--accent); padding-left: 6px; }
.sidebar-quick a i { color: var(--accent); font-size: 0.8rem; }

/* ===== Related Posts ===== */
.related-posts { padding: 0 0 70px; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: var(--accent-light); color: var(--accent); padding: 6px 16px; border-radius: 100px; font-size: 0.8rem; font-weight: 600; margin-bottom: 10px; }
.section-header h2 { font-size: 1.8rem; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.section-header p { color: var(--text-muted); font-size: 0.95rem; }
.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.7);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.related-card .rc-img { position: relative; overflow: hidden; aspect-ratio: 16 / 9; }
.related-card .rc-img img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.01); transition: transform 0.5s ease; }
.related-card:hover .rc-img img { transform: scale(1.08); }
.related-card .rc-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15, 31, 58, 0.35), transparent 70%); }
.related-card .rc-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.related-card .rc-tag { display: inline-block; background: var(--accent-light); color: var(--accent); font-size: 0.72rem; font-weight: 600; padding: 4px 10px; border-radius: 100px; margin-bottom: 12px; align-self: flex-start; }
.related-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-main); line-height: 1.5; margin-bottom: auto; transition: var(--transition); }
.related-card h3 a:hover { color: var(--accent); }
.related-card .rc-meta { display: flex; align-items: center; gap: 12px; margin-top: 16px; font-size: 0.8rem; color: var(--text-muted); }
.related-card .rc-meta i { color: var(--accent); }

/* ===== FAQ ===== */
.faq-section { padding: 70px 0; background: linear-gradient(160deg, #f0f4fa 0%, #e8eef6 100%); }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin-bottom: 16px; overflow: hidden; border: 1px solid rgba(226, 232, 240, 0.7); transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-md); }
.faq-item .faq-q { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; cursor: pointer; font-weight: 600; color: var(--primary); font-size: 0.98rem; }
.faq-item .faq-q i { color: var(--accent); transition: transform 0.3s ease; font-size: 0.85rem; }
.faq-item .faq-a { padding: 0 24px 20px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.8; display: none; }
.faq-item.open .faq-q i { transform: rotate(90deg); }
.faq-item.open .faq-a { display: block; }
.faq-item .faq-q:hover { background: var(--accent-light); }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(120deg, rgba(15, 31, 58, 0.94) 0%, rgba(26, 54, 93, 0.88) 60%, rgba(249, 115, 22, 0.55) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    padding: 80px 0;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -60px;
    left: -40px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(249, 115, 22, 0.18);
    filter: blur(60px);
}
.cta-section h2 { font-size: 1.9rem; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.5px; }
.cta-section p { font-size: 1rem; color: rgba(255, 255, 255, 0.85); max-width: 600px; margin: 0 auto 28px; }
.cta-buttons { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn-cta-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent); color: #fff; padding: 13px 34px;
    border-radius: 12px; font-weight: 700; font-size: 1rem; border: none;
    transition: var(--transition); box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}
.btn-cta-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-3px); box-shadow: 0 10px 28px rgba(249, 115, 22, 0.45); }
.btn-cta-ghost {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255, 255, 255, 0.1); color: #fff; padding: 13px 34px;
    border-radius: 12px; font-weight: 600; font-size: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.35); backdrop-filter: blur(4px);
    transition: var(--transition);
}
.btn-cta-ghost:hover { background: rgba(255, 255, 255, 0.2); color: #fff; transform: translateY(-3px); }
.cta-tips { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-top: 30px; font-size: 0.85rem; color: rgba(255, 255, 255, 0.7); }
.cta-tips span { display: inline-flex; align-items: center; gap: 6px; }
.cta-tips i { color: var(--accent); }

/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(255, 255, 255, 0.8); padding: 64px 0 28px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-brand .brand-icon { width: 40px; height: 40px; font-size: 1rem; }
.footer-desc { font-size: 0.9rem; color: rgba(255, 255, 255, 0.65); line-height: 1.8; max-width: 400px; margin-bottom: 0; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 3px; border-radius: 4px; background: var(--accent); }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 0.88rem; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links a i { font-size: 0.75rem; color: var(--accent); }
.footer-contact p { font-size: 0.88rem; color: rgba(255, 255, 255, 0.65); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--accent); width: 18px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 40px; padding-top: 20px; text-align: center; }
.footer-bottom p { font-size: 0.82rem; color: rgba(255, 255, 255, 0.5); margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    :root { --section-pad: 60px; }
    .article-card { padding: 32px 30px; }
}
@media (max-width: 768px) {
    :root { --section-pad: 50px; }
    body { font-size: 15px; }
    .article-hero { padding: 50px 0 60px; }
    .article-hero h1 { font-size: 1.5rem; }
    .article-main { padding: 40px 0 50px; }
    .article-card { padding: 24px 20px; border-radius: 16px; }
    .section-header h2 { font-size: 1.5rem; }
    .cta-section { padding: 56px 0; }
    .cta-section h2 { font-size: 1.5rem; }
    .navbar-nav { padding-top: 12px; }
}
@media (max-width: 520px) {
    .article-meta { gap: 12px; font-size: 0.8rem; }
    .article-tags .tag { margin-bottom: 4px; }
    .cta-buttons .btn-cta-primary, .cta-buttons .btn-cta-ghost { width: 100%; justify-content: center; }
    .related-card .rc-body { padding: 16px 16px 20px; }
}

/* roulang page: category2 */
/* ============ Design Variables ============ */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --accent-soft: rgba(245, 158, 11, 0.12);
            --bg-body: #f4f6fb;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-light: #eef1f7;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(13, 27, 42, 0.08);
            --shadow-lg: 0 20px 50px rgba(13, 27, 42, 0.14);
            --transition: all 0.3s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ============ Header / Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1040;
            background: rgba(13, 27, 42, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.5px;
        }

        .site-header .navbar-brand:hover {
            color: #ffffff;
        }

        .site-header .brand-icon {
            width: 40px;
            height: 40px;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            border-radius: 12px;
            color: var(--primary);
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
        }

        .site-header .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            padding: 8px 18px;
            margin: 0 2px;
            border-radius: 30px;
            position: relative;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .site-header .navbar-nav .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--accent);
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
        }

        .site-header .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 5px 10px;
        }

        .site-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.4);
        }

        .site-header .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(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 30px;
            border: none;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
        }

        .btn-outline-light-custom {
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #ffffff;
            background: transparent;
            border-radius: 30px;
            padding: 10px 28px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ============ Page Hero ============ */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0d1b2a 0%, #152e4d 60%, #1b3a5c 100%);
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 24px;
        }

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

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

        .page-hero .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
        }

        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .page-hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .page-hero .hero-badges .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
        }

        .page-hero .hero-badges .badge-custom i {
            color: var(--accent);
        }

        .page-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
        }

        .page-hero .hero-stats .stat-item {
            border-left: 3px solid var(--accent);
            padding-left: 16px;
        }

        .page-hero .hero-stats .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .page-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 16px;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        /* ============ Security Cards ============ */
        .security-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .security-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), #fbbf24);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .security-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(245, 158, 11, 0.3);
        }

        .security-card:hover::before {
            transform: scaleX(1);
        }

        .security-card .icon-wrap {
            width: 60px;
            height: 60px;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, #eef1f7, #e2e8f0);
            border-radius: 16px;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .security-card:hover .icon-wrap {
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.35);
            transform: scale(1.05);
        }

        .security-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .security-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

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

        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: rgba(245, 158, 11, 0.25);
        }

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

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

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

        .article-card .card-img-wrap .img-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(13, 27, 42, 0.85);
            backdrop-filter: blur(4px);
            color: #ffffff;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-card .card-img-wrap .img-tag i {
            color: var(--accent);
            font-size: 0.7rem;
        }

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

        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .article-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-card .card-meta i {
            color: var(--accent);
            font-size: 0.75rem;
        }

        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
        }

        .article-card h3 a {
            color: var(--text-main);
        }

        .article-card h3 a:hover {
            color: var(--accent);
        }

        .article-card .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .article-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            transition: var(--transition);
        }

        .article-card .card-link:hover {
            gap: 12px;
            color: var(--accent-hover);
        }

        /* ============ Checklist / Steps ============ */
        .safety-steps {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px dashed var(--border);
            position: relative;
        }

        .step-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .step-item:first-child {
            padding-top: 0;
        }

        .step-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            color: var(--primary);
            font-weight: 800;
            font-size: 1rem;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }

        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ Safety Checklist ============ */
        .checklist-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }

        .checklist-card:hover {
            box-shadow: var(--shadow);
            border-color: rgba(245, 158, 11, 0.25);
        }

        .checklist-card .check-icon {
            width: 44px;
            height: 44px;
            display: grid;
            place-items: center;
            background: rgba(16, 185, 129, 0.1);
            border-radius: 12px;
            color: #10b981;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .checklist-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .checklist-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ Stats Section ============ */
        .stats-section {
            background: linear-gradient(135deg, #0d1b2a 0%, #152e4d 70%, #1b3a5c 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
        }

        .stats-section .container {
            position: relative;
            z-index: 2;
        }

        .stats-section .section-title {
            color: #ffffff;
        }

        .stats-section .section-label {
            background: rgba(245, 158, 11, 0.15);
            border-color: rgba(245, 158, 11, 0.25);
        }

        .stats-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 40px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(245, 158, 11, 0.4);
            transform: translateY(-4px);
        }

        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-card .stat-name {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

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

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
            background: var(--bg-body);
        }

        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.3);
            box-shadow: var(--shadow);
        }

        .faq-header {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-weight: 600;
            font-size: 1rem;
            user-select: none;
            background: var(--bg-white);
            border-radius: var(--radius);
        }

        .faq-header .faq-icon {
            color: var(--accent);
            font-size: 1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            padding: 0 24px 20px;
            max-height: 400px;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            padding: 90px 0;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(13, 27, 42, 0.05));
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, #1b2d45 70%);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(245, 158, 11, 0.15);
            border-radius: 50%;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-box .btn-accent {
            font-size: 1rem;
            padding: 14px 40px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--primary);
            padding-top: 70px;
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            border-radius: 12px;
            color: var(--primary);
            font-size: 1.1rem;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 360px;
        }

        .site-footer .footer-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .site-footer .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 12px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .site-footer .footer-links a i {
            font-size: 0.75rem;
            color: var(--accent);
        }

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

        .site-footer .footer-contact p {
            font-size: 0.9rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 20px;
            text-align: center;
        }

        .footer-bottom {
            margin-top: 50px;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .section-padding {
                padding: 70px 0;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

            .section-title {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 768px) {
            .site-header .navbar-collapse {
                background: var(--primary);
                border-radius: var(--radius-sm);
                padding: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-lg);
            }

            .site-header .navbar-nav .nav-link {
                text-align: center;
                padding: 10px;
            }

            .page-hero {
                padding: 70px 0 60px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero .hero-subtitle {
                font-size: 1rem;
            }

            .page-hero .hero-stats {
                gap: 20px;
            }

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

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

            .cta-box {
                padding: 40px 24px;
            }

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

            .site-footer {
                padding-top: 50px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

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

            .page-hero .hero-badges .badge-custom {
                padding: 6px 14px;
                font-size: 0.78rem;
            }

            .page-hero .hero-stats {
                flex-direction: column;
                gap: 16px;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

            .stat-card .stat-num {
                font-size: 1.6rem;
            }

            .cta-box {
                padding: 32px 20px;
                border-radius: 16px;
            }

            .cta-box h2 {
                font-size: 1.3rem;
            }

            .safety-steps {
                padding: 24px;
            }

            .checklist-card {
                padding: 24px;
            }

            .faq-header {
                font-size: 0.92rem;
                padding: 16px 18px;
            }

            .faq-answer {
                padding: 0 18px;
                font-size: 0.88rem;
            }

            .site-footer .footer-bottom p {
                font-size: 0.78rem;
                line-height: 1.6;
            }
        }

        /* ============ Focus accessibility ============ */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 3px solid rgba(245, 158, 11, 0.5);
            outline-offset: 2px;
        }

        /* ============ Utility ============ */
        .text-accent {
            color: var(--accent);
        }

        .bg-light-custom {
            background: var(--bg-light);
        }

        .shadow-hover {
            transition: var(--transition);
        }

        .shadow-hover:hover {
            box-shadow: var(--shadow-lg);
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0e1c2f;
  --primary-light: #182b42;
  --primary-dark: #091420;
  --accent: #f0a63c;
  --accent-hover: #d8932e;
  --accent-light: #fdecd2;
  --bg-body: #f4f7fb;
  --bg-white: #ffffff;
  --bg-grey: #eef1f6;
  --text-main: #1c2a38;
  --text-muted: #6a7a8c;
  --text-light: #93a4b5;
  --border-color: #e4eaf1;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(14, 28, 47, 0.06);
  --shadow-md: 0 6px 24px rgba(14, 28, 47, 0.08);
  --shadow-lg: 0 12px 40px rgba(14, 28, 47, 0.12);
  --transition: all 0.3s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
ul, ol { list-style: none; padding: 0; margin: 0; }
p { margin-bottom: 0; }

/* ========== 容器 ========== */
.container { max-width: 1220px; padding-left: 20px; padding-right: 20px; }

/* ========== Header / 导航 ========== */
.site-header {
  background: rgba(14, 28, 47, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 4px 24px rgba(9, 20, 32, 0.2);
}
.navbar { padding: 14px 0; }
.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff !important;
  letter-spacing: 0.02em;
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #ffc96e);
  border-radius: 12px;
  color: var(--primary-dark);
  font-size: 1.1rem;
  margin-right: 10px;
  box-shadow: 0 4px 14px rgba(240, 166, 60, 0.4);
}
.navbar-nav { gap: 4px; }
.navbar-nav .nav-item { position: relative; }
.navbar-nav .nav-link {
  color: rgba(255,255,255,0.78);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 18px;
  border-radius: 10px;
  transition: var(--transition);
}
.navbar-nav .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.navbar-nav .nav-link.active {
  color: var(--accent) !important;
  background: rgba(240, 166, 60, 0.12);
}
.navbar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  background: var(--accent);
  border-radius: 4px;
}
.navbar-toggler {
  border: 1px solid rgba(255,255,255,0.25);
  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(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #ffc96e);
  color: var(--primary-dark) !important;
  font-weight: 700;
  border: none;
  padding: 10px 26px;
  border-radius: 12px;
  font-size: 0.92rem;
  box-shadow: 0 4px 16px rgba(240, 166, 60, 0.35);
  transition: var(--transition);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 166, 60, 0.45);
  color: var(--primary-dark) !important;
}
.btn-outline-light-custom {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.45);
  color: #fff;
  padding: 10px 26px;
  border-radius: 12px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline-light-custom:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

/* ========== Hero Banner ========== */
.page-hero {
  position: relative;
  padding: 90px 0 80px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, #1d3754 100%);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity: 0.38;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240,166,60,0.25), transparent 70%);
}
.page-hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 166, 60, 0.18);
  border: 1px solid rgba(240, 166, 60, 0.35);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 40px;
  letter-spacing: 0.05em;
  margin-bottom: 18px;
}
.page-hero h1 {
  color: #fff;
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.page-hero h1 span { color: var(--accent); }
.page-hero .lead {
  color: rgba(255,255,255,0.78);
  font-size: 1.1rem;
  max-width: 640px;
  line-height: 1.8;
}

/* ========== 板块通用 ========== */
.section {
  padding: 80px 0;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

/* ========== 分类筛选 Chips ========== */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}
.filter-tabs .filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 40px;
  background: #fff;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.filter-tabs .filter-chip i { color: var(--accent); font-size: 0.85rem; }
.filter-tabs .filter-chip:hover {
  border-color: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.filter-tabs .filter-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 6px 20px rgba(14, 28, 47, 0.3);
}
.filter-tabs .filter-chip.active i { color: var(--accent); }

/* ========== 活动卡片 ========== */
.activity-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.activity-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(240,166,60,0.3);
}
.activity-card .card-img-wrap {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.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(1.05); }
.activity-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,28,47,0.5), transparent 60%);
}
.activity-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: linear-gradient(135deg, var(--accent), #ffc96e);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 30px;
  box-shadow: 0 4px 12px rgba(240,166,60,0.35);
}
.activity-card .card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.activity-card .card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}
.activity-card .card-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 18px;
}
.activity-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--border-color);
  padding-top: 14px;
}
.activity-meta .meta-date {
  color: var(--text-light);
  font-size: 0.82rem;
}
.activity-meta .meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent-hover);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
}
.card-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
}
.card-action:hover { color: var(--accent-hover); gap: 10px; }
.card-action i { font-size: 0.75rem; }

/* ========== 数据统计区块 ========== */
.stats-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  position: relative;
  padding: 70px 0;
}
.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity: 0.12;
}
.stats-section .container { position: relative; z-index: 2; }
.stat-item {
  text-align: center;
  padding: 25px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-3px);
}
.stat-item .stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.stat-item .stat-label {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  margin-top: 6px;
  font-weight: 500;
}

/* ========== 参与流程 ========== */
.process-section { background: #fff; }
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 20px;
}
.process-item {
  position: relative;
  text-align: center;
  padding: 36px 20px 24px;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.process-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(240,166,60,0.3);
}
.process-step {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  box-shadow: 0 6px 18px rgba(14, 28, 47, 0.25);
}
.process-step i { color: var(--accent); }
.process-item h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.process-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ========== 规则区块 ========== */
.rules-section {
  background: var(--bg-body);
}
.rules-box {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 40px 40px 30px;
  box-shadow: var(--shadow-sm);
}
.rules-box h4 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text-main);
}
.rules-list li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid #f0f3f7;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}
.rules-list li:last-child { border-bottom: none; }
.rules-list li i {
  color: var(--accent);
  margin-top: 5px;
  font-size: 0.9rem;
}
.rules-tip {
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--accent-hover) !important;
  font-size: 0.9rem;
  margin-top: 20px;
  border-left: 4px solid var(--accent);
}

/* ========== FAQ ========== */
.faq-section { background: #fff; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(240,166,60,0.3); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  color: var(--text-main);
  font-size: 1rem;
}
.faq-question i {
  color: var(--accent);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  display: none;
}
.faq-item.active .faq-answer { display: block; }

/* ========== CTA 区块 ========== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark), #1d3754);
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  opacity: 0.2;
}
.cta-section::after {
  content: "";
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240,166,60,0.3), transparent 70%);
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-section p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 36px;
}
.cta-section .btn-accent { font-size: 1rem; padding: 14px 40px; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 70px 0 0;
}
.footer-brand {
  display: flex;
  align-items: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .brand-icon {
  width: 42px;
  height: 42px;
  font-size: 1.1rem;
}
.footer-desc {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 420px;
}
.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 3px;
  background: var(--accent);
  border-radius: 4px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.93rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
  gap: 12px;
}
.footer-links a i { font-size: 0.75rem; color: var(--accent); }
.footer-contact p {
  color: rgba(255,255,255,0.6);
  font-size: 0.93rem;
  margin-bottom: 12px;
  line-height: 1.8;
}
.footer-contact i { color: var(--accent); width: 22px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 0;
  margin-top: 50px;
  text-align: center;
}
.footer-bottom p {
  color: rgba(255,255,255,0.45);
  font-size: 0.85rem;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .page-hero { padding: 70px 0; }
  .page-hero h1 { font-size: 2.4rem; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .page-hero h1 { font-size: 2rem; }
  .page-hero .lead { font-size: 1rem; }
  .section-title { font-size: 1.6rem; }
  .navbar-collapse {
      background: var(--primary-light);
      border-radius: 16px;
      padding: 16px;
      margin-top: 14px;
  }
  .navbar-nav .nav-link { padding: 12px 16px; }
  .navbar-nav .nav-link.active::after { display: none; }
  .stat-item { margin-bottom: 16px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .rules-box { padding: 28px 20px; }
}

@media (max-width: 520px) {
  .page-hero { padding: 50px 0; }
  .page-hero h1 { font-size: 1.65rem; }
  .section-title { font-size: 1.4rem; }
  .filter-tabs { gap: 8px; }
  .filter-tabs .filter-chip { padding: 7px 16px; font-size: 0.82rem; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-contact p { font-size: 0.85rem; }
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-up { animation: fadeInUp 0.8s ease both; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }