/* roulang page: index */
:root {
            --primary: #2F6EE1;
            --primary-light: #EAF2FF;
            --primary-soft: #D6E6FF;
            --primary-dark: #1E4FA6;
            --cta: #F0A23A;
            --cta-hover: #D98A24;
            --bg: #F6F8FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2A44;
            --text-sub: #54617A;
            --text-muted: #8896AB;
            --border: #E4EAF2;
            --success: #27A67E;
            --footer-bg: #12263A;
            --footer-text: #A9BCD0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-full: 999px;
            --shadow-card: 0 2px 12px rgba(31, 42, 68, 0.06);
            --shadow-hover: 0 10px 28px rgba(31, 42, 68, 0.12);
            --shadow-btn: 0 6px 16px rgba(47, 110, 225, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            --space-lg: 84px;
            --space-md: 48px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.2s ease;
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-block {
            padding: var(--space-lg) 0;
        }

        .section-dark {
            background-color: var(--footer-bg);
        }

        .section-light-blue {
            background-color: var(--primary-light);
        }

        .section-white {
            background-color: var(--card-bg);
        }

        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-heading .subtitle-text {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-heading h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .section-heading p {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ========== Btn ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            text-align: center;
        }

        .btn-cta {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
            box-shadow: 0 6px 16px rgba(240, 162, 58, 0.35);
        }

        .btn-cta:hover {
            background: var(--cta-hover);
            border-color: var(--cta-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(240, 162, 58, 0.4);
        }

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

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

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

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

        .btn-link {
            color: var(--primary);
            font-weight: 600;
            padding: 0;
            background: none;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            font-size: 15px;
            transition: gap 0.2s ease;
        }

        .btn-link i {
            font-size: 13px;
        }

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

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 1px 0 rgba(31, 42, 68, 0.06);
        }

        .header-brand-row {
            background: #fff;
            height: 64px;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

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

        .header-contact {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .header-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 14px;
        }

        .header-contact-item i {
            color: var(--primary);
        }

        .header-cta {
            padding: 8px 20px;
            font-size: 14px;
        }

        .header-channel-row {
            background: var(--bg);
            border-top: 1px solid var(--border);
            height: 48px;
            display: flex;
            align-items: center;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            padding: 0;
            margin: 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            width: 100%;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav li a {
            display: inline-block;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            font-size: 14px;
            color: var(--text-sub);
            background: #fff;
            border: 1px solid var(--border);
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .channel-nav li a:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary-soft);
        }

        .channel-nav li a.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: transparent;
            font-weight: 700;
        }

        .channel-nav li a i {
            margin-right: 5px;
            font-size: 12px;
        }

        /* 移动端菜单按钮 */
        .nav-toggle-mobile {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 16px;
            color: var(--text-main);
            cursor: pointer;
        }

        @media (max-width: 1024px) {
            .header-contact-item {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle-mobile {
                display: inline-flex;
            }

            .header-cta {
                display: none;
            }

            .channel-nav {
                flex-wrap: nowrap;
                padding: 4px 0;
            }

            .channel-nav li a {
                font-size: 13px;
                padding: 5px 14px;
            }
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            padding: 0;
            background: var(--primary-light);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(47, 110, 225, 0.35), rgba(234, 242, 255, 0.4)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            padding: 100px 0 80px;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(4px);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-full);
            margin-bottom: 24px;
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.05);
        }

        .hero-inner h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero-inner h1 em {
            font-style: normal;
            color: var(--primary);
            border-bottom: 3px solid var(--cta);
        }

        .hero-sub {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-trust {
            margin-top: 48px;
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.7);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            color: var(--text-sub);
            box-shadow: 0 2px 6px rgba(31, 42, 68, 0.03);
        }

        .trust-item i {
            color: var(--success);
        }

        @media (max-width: 768px) {
            .hero-inner {
                padding: 60px 0 50px;
            }

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

            .hero-sub {
                font-size: 16px;
            }

            .hero-actions .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
        }

        /* ========== 数据条 ========== */
        .stats-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }

        .stats-grid {
            display: flex;
            justify-content: space-around;
            gap: 24px;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
            min-width: 140px;
        }

        .stat-item .num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
        }

        .stat-item .num em {
            font-style: normal;
            color: var(--cta);
        }

        .stat-item .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                gap: 16px;
            }

            .stat-item {
                min-width: 45%;
            }

            .stat-item .num {
                font-size: 26px;
            }
        }

        /* ========== 卖点三连 ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            opacity: 0.15;
            transition: opacity 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-soft);
            transform: translateY(-4px);
        }

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

        .feature-card:nth-child(2)::after {
            content: "02";
            position: absolute;
            font-size: 72px;
            font-weight: 700;
            color: var(--primary-light);
            top: 8px;
            right: 16px;
            line-height: 1;
            z-index: 0;
        }

        .feature-card:nth-child(1)::after {
            content: "01";
            position: absolute;
            font-size: 60px;
            font-weight: 700;
            color: var(--primary-light);
            bottom: -6px;
            right: 12px;
            line-height: 1;
            z-index: 0;
        }

        .feature-card:nth-child(3)::after {
            content: "03";
            position: absolute;
            font-size: 48px;
            font-weight: 700;
            color: var(--primary-light);
            top: 50%;
            right: 10px;
            line-height: 1;
            z-index: 0;
            transform: translateY(-50%);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            position: relative;
            z-index: 1;
        }

        .feature-card:nth-child(2) .feature-icon {
            background: #FDF2E3;
            color: var(--cta);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: #E8F8F2;
            color: var(--success);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
            position: relative;
            z-index: 1;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

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

            .feature-card:last-child {
                grid-column: 1 / -1;
                max-width: 50%;
                margin: 0 auto;
            }
        }

        @media (max-width: 640px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }

            .feature-card:last-child {
                grid-column: auto;
                max-width: 100%;
            }
        }

        /* ========== 场景演示 ========== */
        .scenario-block {
            padding: var(--space-lg) 0;
            background: #fff;
        }

        .scenario-row {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 64px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-media {
            flex: 1;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .scenario-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            display: block;
        }

        .scenario-content {
            flex: 1;
        }

        .scenario-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 14px;
        }

        .scenario-content h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .scenario-content p {
            color: var(--text-sub);
            margin-bottom: 18px;
            font-size: 15px;
        }

        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
        }

        .scenario-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 15px;
            color: var(--text-main);
        }

        .scenario-list li i {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--success);
            color: #fff;
            font-size: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .scenario-row {
                flex-direction: column;
                gap: 28px;
            }

            .scenario-row.reverse .scenario-media {
                order: 1;
            }

            .scenario-row.reverse .scenario-content {
                order: 2;
            }

            .scenario-media img {
                height: 240px;
            }

            .scenario-content h3 {
                font-size: 22px;
            }
        }

        @media (max-width: 640px) {
            .scenario-media img {
                height: 200px;
            }

            .scenario-content h3 {
                font-size: 20px;
            }
        }

        /* ========== 社会认同 ========== */
        .testimonial-section {
            background: var(--bg);
        }

        .testimonial-card-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            position: relative;
            transition: all 0.3s ease;
        }

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

        .testimonial-quote-icon {
            font-size: 40px;
            color: var(--primary-light);
            line-height: 1;
            margin-bottom: 14px;
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        .testimonial-person {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 600;
            font-size: 16px;
            flex-shrink: 0;
        }

        .testimonial-person .name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .testimonial-person .role {
            font-size: 12px;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .testimonial-card-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .testimonial-card-wrap {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 资讯列表 ========== */
        .news-list-section {
            background: #fff;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            min-height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-soft);
        }

        .news-thumb {
            height: 160px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            color: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-thumb .img-placeholder {
            font-size: 42px;
        }

        .news-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-category {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 44px;
        }

        .news-excerpt {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        .news-empty {
            grid-column: 1 / -1;
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 20px;
            text-align: center;
            color: var(--text-muted);
        }

        .news-empty i {
            font-size: 36px;
            color: var(--primary-soft);
            margin-bottom: 12px;
            display: block;
        }

        .news-empty p {
            font-size: 14px;
        }

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

        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.2s ease;
        }

        .faq-item.active {
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            user-select: none;
            transition: color 0.2s ease;
        }

        .faq-question .faq-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ========== CTA 横幅 ========== */
        .cta-banner {
            background: var(--footer-bg);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(47, 110, 225, 0.2);
        }

        .cta-banner-inner {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .cta-banner-inner h2 {
            color: #fff;
            font-size: 28px;
            margin-bottom: 12px;
        }

        .cta-banner-inner p {
            color: var(--footer-text);
            font-size: 16px;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-bg);
            padding: 64px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-columns {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand-description {
            color: var(--footer-text);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
        }

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

        .footer-brand-logo .brand-mark {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: var(--footer-text);
            font-size: 14px;
            transition: all 0.2s ease;
        }

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

        .footer-contact-info {
            color: var(--footer-text);
            font-size: 14px;
        }

        .footer-contact-info p {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact-info i {
            color: var(--primary-soft);
            width: 18px;
        }

        .footer-qr-code {
            display: flex;
            gap: 12px;
        }

        .qr-placeholder {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--footer-text);
            font-size: 26px;
        }

        .social-icons {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }

        .social-icons a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--footer-text);
            font-size: 14px;
            transition: all 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom .back-to-top {
            font-size: 13px;
            color: var(--footer-text);
            background: none;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s ease;
        }

        .footer-bottom .back-to-top:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .footer-columns {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .footer-columns {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 固定转化条 ========== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            box-shadow: 0 -2px 10px rgba(31, 42, 68, 0.08);
            border-top: 1px solid var(--border);
            padding: 8px 0;
        }

        .fixed-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .fixed-cta-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-main);
        }

        .fixed-cta-text i {
            color: var(--cta);
        }

        .fixed-cta-bar .btn-cta {
            padding: 10px 24px;
            font-size: 14px;
        }

        body {
            padding-bottom: 64px;
        }

        @media (max-width: 640px) {
            .fixed-cta-text {
                font-size: 12px;
            }

            .fixed-cta-text i {
                font-size: 16px;
            }

            .fixed-cta-bar .btn-cta {
                padding: 8px 18px;
                font-size: 13px;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-list li a {
            color: var(--text-muted);
        }

        .breadcrumb-list li a:hover {
            color: var(--primary);
        }

        .breadcrumb-list li.separator {
            color: #ccc;
        }

        .breadcrumb-list li.current {
            color: var(--text-sub);
        }

        /* ========== 通用 ========== */
        .section-padding-sm {
            padding: 48px 0;
        }

        .text-center {
            text-align: center;
        }

        .mt-4 {
            margin-top: 24px;
        }

        .mb-4 {
            margin-bottom: 24px;
        }

        @media (max-width: 768px) {
            :root {
                --space-lg: 48px;
            }

            .section-heading h2 {
                font-size: 24px;
            }

            .section-heading p {
                font-size: 14px;
            }

            .scenario-content h3 {
                font-size: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2F6EE1;
            --primary-light: #EAF2FF;
            --primary-lighter: #D6E6FF;
            --primary-dark: #1E4FA6;
            --cta: #F0A23A;
            --cta-hover: #D98A24;
            --bg: #F6F8FB;
            --card-bg: #FFFFFF;
            --text: #1F2A44;
            --text-secondary: #54617A;
            --text-muted: #8896AB;
            --border: #E4EAF2;
            --success: #27A67E;
            --footer-bg: #12263A;
            --footer-text: #A9BCD0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-full: 999px;
            --shadow: 0 2px 12px rgba(31, 42, 68, 0.06);
            --shadow-hover: 0 10px 28px rgba(31, 42, 68, 0.12);
            --shadow-btn: 0 6px 16px rgba(47, 110, 225, 0.3);
            --space: 84px;
            --space-mobile: 48px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }

        p {
            margin: 0;
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .section-white {
            background: #fff;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-heading .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-heading h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-heading p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            line-height: 1;
            white-space: nowrap;
        }

        .btn i {
            font-size: 14px;
        }

        .btn-primary {
            background: var(--cta);
            color: #fff;
            border-color: var(--cta);
            box-shadow: 0 6px 16px rgba(240, 162, 58, 0.3);
        }

        .btn-primary:hover {
            background: var(--cta-hover);
            border-color: var(--cta-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(240, 162, 58, 0.38);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(240, 162, 58, 0.25);
        }

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

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        .btn-link {
            background: transparent;
            color: var(--primary);
            padding: 0;
            height: auto;
            font-weight: 600;
            gap: 6px;
        }

        .btn-link:hover {
            color: var(--primary-dark);
        }

        .btn-link:hover i {
            transform: translateX(4px);
        }

        .btn-link i {
            transition: transform 0.2s ease;
            font-size: 13px;
        }

        .btn-lg {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
            border-radius: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(47, 110, 225, 0.35);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            line-height: 1.6;
        }

        .badge-orange {
            background: rgba(240, 162, 58, 0.12);
            color: #D98210;
        }

        .section-muted {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            box-shadow: 0 1px 0 rgba(31, 42, 68, 0.06);
        }

        .header-brand-row {
            height: 64px;
            background: #fff;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.02em;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(47, 110, 225, 0.25);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.01em;
        }

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

        .header-contact {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .header-contact-item {
            font-size: 13px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .header-contact-item i {
            color: var(--primary);
            font-size: 14px;
        }

        .header-cta {
            height: 38px;
            padding: 0 20px;
            font-size: 14px;
            border-radius: 10px;
        }

        .header-channel-row {
            height: 48px;
            background: var(--bg);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-nav li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 34px;
            padding: 0 18px;
            border-radius: var(--radius-full);
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .channel-nav li a i {
            font-size: 13px;
            opacity: 0.85;
        }

        .channel-nav li a:hover {
            background: var(--primary-light);
            border-color: var(--primary-lighter);
            color: var(--primary);
        }

        .channel-nav li a.active {
            background: var(--primary-light);
            border-color: var(--primary-lighter);
            color: var(--primary);
            font-weight: 700;
            box-shadow: inset 0 -2px 0 var(--primary);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 84px 0 64px;
            background: linear-gradient(135deg, #EAF2FF 0%, #F6F8FB 70%);
            overflow: hidden;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            z-index: 0;
        }

        .page-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(234, 242, 255, 0.9) 0%, rgba(246, 248, 251, 0.6) 60%, rgba(246, 248, 251, 0.8) 100%);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s;
        }

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

        .breadcrumb .sep {
            color: #C3CEE0;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .page-hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-actions .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: var(--shadow-btn);
        }

        .hero-actions .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(215, 226, 242, 0.8);
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-trust-item i {
            color: var(--success);
            font-size: 15px;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            background: #fff;
            padding: var(--space) 0;
        }

        .intro-grid {
            display: flex;
            gap: 56px;
            align-items: center;
        }

        .intro-image {
            flex: 1.1;
            position: relative;
        }

        .intro-image .img-wrap {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }

        .intro-image .img-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }

        .intro-image .img-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(18, 38, 58, 0.78);
            color: #fff;
            backdrop-filter: blur(4px);
            border-radius: 12px;
            padding: 12px 18px;
            font-size: 14px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .intro-image .img-badge i {
            color: var(--cta);
        }

        .intro-content {
            flex: 1;
        }

        .intro-content .section-label {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
        }

        .intro-content h2 {
            font-size: 30px;
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .intro-content .lead {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .check-list {
            margin-bottom: 28px;
        }

        .check-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 9px 0;
            font-size: 15px;
            color: var(--text);
        }

        .check-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--success);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        /* ===== Cards Grid ===== */
        .cards-section {
            background: var(--bg);
            padding: var(--space) 0;
        }

        .news-card-grid {
            display: flex;
            flex-wrap: wrap;
            margin: -12px;
        }

        .news-card-col {
            padding: 12px;
            width: 33.3333%;
        }

        .news-card {
            background: var(--card-bg);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-lighter);
            color: inherit;
        }

        .news-card-media {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--primary-light);
        }

        .news-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .news-card-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(18, 38, 58, 0.35) 100%);
            pointer-events: none;
        }

        .news-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            backdrop-filter: blur(4px);
        }

        .news-card-body {
            padding: 22px 22px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s;
        }

        .news-card:hover .news-card-body h3 {
            color: var(--primary);
        }

        .news-card-body .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid #F0F3F9;
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-card-meta .date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-card-meta .read-more i {
            font-size: 11px;
            transition: transform 0.2s;
        }

        .news-card:hover .news-card-meta .read-more i {
            transform: translateX(3px);
        }

        /* ===== Feature Section ===== */
        .feature-section {
            background: #fff;
            padding: var(--space) 0;
        }

        .feature-grid {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .feature-col {
            flex: 1;
            min-width: 280px;
        }

        .feature-card {
            background: var(--bg);
            border-radius: 16px;
            padding: 32px 28px;
            height: 100%;
            border: 1px solid var(--border);
            position: relative;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .feature-card:hover {
            background: #fff;
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-lighter);
        }

        .feature-num {
            font-size: 14px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.06em;
            display: block;
            margin-bottom: 18px;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .feature-card:nth-child(2) .feature-icon {
            background: rgba(240, 162, 58, 0.14);
            color: var(--cta-hover);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: rgba(39, 166, 126, 0.14);
            color: var(--success);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .feature-point {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text);
            padding: 4px 0;
        }

        .feature-point i {
            color: var(--success);
            font-size: 12px;
        }

        /* ===== Process Section ===== */
        .process-section {
            background: var(--bg);
            padding: var(--space) 0;
        }

        .process-steps {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            counter-reset: step;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            background: #fff;
            border-radius: 16px;
            padding: 30px 26px;
            border: 1px solid var(--border);
            position: relative;
            transition: all 0.3s ease;
        }

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

        .process-step .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .process-step:nth-child(2) .step-num {
            background: var(--cta);
        }

        .process-step:nth-child(3) .step-num {
            background: var(--success);
        }

        .process-step:nth-child(4) .step-num {
            background: var(--primary-dark);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .process-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: #C3CEE0;
            font-size: 16px;
            z-index: 2;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: #fff;
            padding: var(--space) 0;
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.active {
            background: #fff;
            border-color: var(--primary-lighter);
            box-shadow: var(--shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
        }

        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: color 0.2s;
        }

        .faq-item.active .faq-question h3 {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.2s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            transition: max-height 0.35s ease, padding 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: var(--footer-bg);
            position: relative;
            padding: 72px 0;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(47, 110, 225, 0.18);
            filter: blur(10px);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 10%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(240, 162, 58, 0.12);
            filter: blur(8px);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner .cta-badge {
            display: inline-block;
            background: rgba(240, 162, 58, 0.18);
            color: var(--cta);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.4px;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-inner p {
            color: var(--footer-text);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .cta-banner .btn-primary {
            background: var(--cta);
            border-color: var(--cta);
            font-size: 16px;
            height: 52px;
            padding: 0 38px;
        }

        .cta-banner .btn-primary:hover {
            background: var(--cta-hover);
            border-color: var(--cta-hover);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            padding-top: 64px;
        }

        .footer-columns {
            display: flex;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
        }

        .footer-columns>div {
            flex: 1;
            min-width: 200px;
        }

        .footer-columns>div:first-child {
            flex: 1.4;
        }

        .footer-brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand-logo .brand-mark {
            width: 34px;
            height: 34px;
            font-size: 16px;
        }

        .footer-brand-description {
            color: var(--footer-text);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

        .footer-links a {
            color: var(--footer-text);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s, transform 0.2s;
            text-decoration: none;
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-links a i {
            font-size: 11px;
            color: var(--primary-lighter);
        }

        .footer-contact-info p {
            color: var(--footer-text);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact-info p i {
            color: var(--primary-lighter);
            width: 16px;
            text-align: center;
        }

        .footer-qr-code {
            display: flex;
            gap: 14px;
            align-items: center;
            margin-bottom: 16px;
        }

        .qr-placeholder {
            width: 78px;
            height: 78px;
            background: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 28px;
            flex-shrink: 0;
        }

        .social-icons {
            display: flex;
            gap: 10px;
        }

        .social-icons a {
            width: 36px;
            height: 36px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--footer-text);
            font-size: 14px;
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .social-icons a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .copyright {
            color: var(--footer-text);
            font-size: 13px;
        }

        .back-to-top {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--footer-text);
            font-size: 13px;
            height: 36px;
            padding: 0 18px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .back-to-top:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .intro-grid {
                gap: 36px;
                flex-direction: column;
            }

            .intro-image {
                width: 100%;
            }

            .intro-image .img-wrap img {
                height: 320px;
            }

            .news-card-col {
                width: 50%;
            }

            .process-arrow {
                display: none;
            }
        }

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

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

            .header-brand-row {
                height: auto;
                padding: 14px 0;
            }

            .header-brand-row .container-custom {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
            }

            .header-contact {
                width: 100%;
                justify-content: space-between;
                gap: 10px;
                flex-wrap: wrap;
            }

            .header-contact-item {
                font-size: 12px;
            }

            .header-contact .header-contact-item:nth-child(2) {
                display: none;
            }

            .header-cta {
                height: 36px;
                padding: 0 16px;
                font-size: 13px;
            }

            .header-channel-row {
                height: auto;
                padding: 8px 0;
                border-top: 1px solid var(--border);
            }

            .channel-nav {
                gap: 6px;
            }

            .channel-nav li a {
                height: 32px;
                padding: 0 14px;
                font-size: 13px;
            }

            .page-hero {
                padding: 56px 0 40px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

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

            .hero-actions .btn {
                width: 100%;
            }

            .hero-trust {
                gap: 12px;
                flex-direction: column;
            }

            .news-card-col {
                width: 100%;
            }

            .feature-col {
                min-width: 100%;
            }

            .process-steps {
                flex-direction: column;
            }

            .process-step {
                min-width: 100%;
            }

            .footer-columns {
                flex-direction: column;
                gap: 32px;
            }

            .footer-columns>div:first-child {
                flex: 1;
            }

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

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 18px;
            }

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

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }

            .hero-contact-item {
                font-size: 12px;
            }

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

            .section-heading h2 {
                font-size: 24px;
            }

            .intro-content h2 {
                font-size: 24px;
            }

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

            .cta-inner p {
                font-size: 15px;
            }

            .news-card-body {
                padding: 18px 16px 14px;
            }
        }

/* roulang page: category2 */
:root{
  --primary:#2F6EE1;
  --primary-light:#EAF2FF;
  --primary-soft:#D6E6FF;
  --primary-dark:#1E4FA6;
  --accent:#F0A23A;
  --accent-hover:#D98A24;
  --bg:#F6F8FB;
  --card-bg:#FFFFFF;
  --text-main:#1F2A44;
  --text-sub:#54617A;
  --text-muted:#8896AB;
  --border:#E4EAF2;
  --success:#27A67E;
  --footer-bg:#12263A;
  --footer-text:#A9BCD0;
  --radius-card:12px;
  --radius-btn:12px;
  --radius-tag:999px;
  --radius-input:8px;
  --shadow-card:0 2px 12px rgba(31,42,68,0.06);
  --shadow-hover:0 10px 28px rgba(31,42,68,0.12);
  --shadow-btn:0 6px 16px rgba(47,110,225,0.3);
  --space-section:84px;
  --space-section-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text-main);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;}

.container-custom{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--card-bg);
  box-shadow:0 2px 12px rgba(31,42,68,0.06);
}
.header-brand-row{
  border-bottom:1px solid var(--border);
}
.header-brand-row .container-custom{
  display:flex;align-items:center;justify-content:space-between;height:64px;
}
.brand-logo{
  display:flex;align-items:center;gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-size:20px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-btn);
}
.brand-text{
  font-size:20px;font-weight:700;color:var(--text-main);
  letter-spacing:0.5px;
}
.brand-text span{color:var(--primary);}
.header-contact{
  display:flex;align-items:center;gap:20px;
}
.header-contact-item{
  font-size:13px;color:var(--text-sub);
  display:flex;align-items:center;gap:6px;
}
.header-contact-item i{color:var(--primary);font-size:15px;}
.header-cta{
  padding:9px 20px;
}
.btn-cta{
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  padding:10px 22px;
  display:inline-flex;align-items:center;gap:6px;
  transition:all .25s ease;
  box-shadow:0 4px 12px rgba(240,162,58,0.3);
}
.btn-cta:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 6px 18px rgba(240,162,58,0.4);
}
.header-channel-row{
  background:var(--card-bg);
}
.header-channel-row .container-custom{
  height:48px;
  display:flex;align-items:center;
}
.channel-nav{
  display:flex;align-items:center;gap:8px;
}
.channel-nav li a{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 18px;
  border-radius:var(--radius-tag);
  font-size:14px;
  font-weight:500;
  color:var(--text-sub);
  border:1px solid transparent;
  transition:all .2s ease;
  background:transparent;
}
.channel-nav li a:hover{
  background:var(--primary-light);
  color:var(--primary);
}
.channel-nav li a.active{
  background:var(--primary-light);
  color:var(--primary);
  font-weight:600;
  border-color:transparent;
}
.channel-nav li a i{font-size:13px;}

/* ===== Hero ===== */
.page-hero{
  background:linear-gradient(135deg,var(--primary-light) 0%,#F0F6FF 55%,var(--bg) 100%);
  padding:72px 0 56px;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-60px;right:-40px;
  width:240px;height:240px;
  border-radius:50%;
  background:rgba(255,255,255,0.4);
  border:2px solid rgba(240,162,58,0.25);
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-80px;left:-60px;
  width:260px;height:260px;
  border-radius:50%;
  background:rgba(47,110,225,0.06);
}
.page-hero .container-custom{
  position:relative;z-index:2;
}
.breadcrumb{
  font-size:13px;color:var(--text-muted);
  margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.breadcrumb a{color:var(--text-sub);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-muted);opacity:0.6;}
.hero-title{
  font-size:40px;
  font-weight:700;
  color:var(--text-main);
  line-height:1.25;
  margin-bottom:16px;
}
.hero-title .highlight{
  color:var(--primary);
  position:relative;
}
.hero-title .highlight::after{
  content:"";
  position:absolute;
  left:0;bottom:2px;
  width:100%;height:8px;
  background:rgba(240,162,58,0.25);
  z-index:-1;
  border-radius:4px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-sub);
  max-width:620px;
  line-height:1.8;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:var(--radius-btn);
  padding:14px 32px;
  font-size:16px;
  font-weight:600;
  transition:all .25s ease;
  box-shadow:0 6px 16px rgba(240,162,58,0.35);
}
.btn-primary:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(240,162,58,0.4);
}
.btn-secondary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--card-bg);
  color:var(--primary);
  border:2px solid var(--primary);
  border-radius:var(--radius-btn);
  padding:13px 30px;
  font-size:16px;
  font-weight:600;
  transition:all .25s ease;
}
.btn-secondary:hover{
  background:var(--primary-light);
  color:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(47,110,225,0.18);
}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  transition:gap .2s ease;
}
.btn-link:hover{color:var(--primary-dark);gap:12px;}
.hero-stats{
  display:flex;align-items:center;gap:32px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,0.5);
  flex-wrap:wrap;
}
.hero-stat-item{display:flex;align-items:center;gap:10px;}
.hero-stat-item i{
  color:var(--primary);
  font-size:18px;
}
.hero-stat-item span{
  font-size:14px;
  color:var(--text-sub);
  font-weight:500;
}

/* ===== Section base ===== */
.section{padding:var(--space-section) 0;}
.section-light{
  background:var(--card-bg);
}
.section-head{
  margin-bottom:44px;
}
.section-kicker{
  display:inline-block;
  padding:5px 16px;
  background:var(--primary-light);
  color:var(--primary);
  border-radius:var(--radius-tag);
  font-size:13px;
  font-weight:600;
  margin-bottom:14px;
  letter-spacing:0.3px;
}
.section-title{
  font-size:30px;
  font-weight:700;
  color:var(--text-main);
  line-height:1.3;
  margin-bottom:12px;
}
.section-desc{
  font-size:15px;
  color:var(--text-sub);
  max-width:560px;
  line-height:1.7;
}
.text-center .section-desc{margin:0 auto;}

/* ===== Intro panel ===== */
.intro-panel{
  display:flex;
  align-items:center;
  gap:48px;
  background:var(--card-bg);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  border:1px solid var(--border);
  padding:40px;
  margin-top:24px;
}
.intro-panel .intro-text{
  flex:1.05;
}
.intro-panel .intro-text h2{
  font-size:24px;
  font-weight:700;
  margin-bottom:12px;
  color:var(--text-main);
}
.intro-panel .intro-text p{
  font-size:15px;
  color:var(--text-sub);
  line-height:1.8;
}
.intro-panel .intro-text .intro-points{
  margin-top:18px;
}
.intro-panel .intro-text .intro-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text-sub);
  margin-bottom:10px;
}
.intro-panel .intro-text .intro-points i{
  color:var(--success);
  font-size:16px;
  margin-top:3px;
}
.intro-panel .intro-media{
  flex:0.95;
}
.intro-media img{
  width:100%;
  border-radius:14px;
  object-fit:cover;
  box-shadow:0 8px 24px rgba(31,42,68,0.08);
}

/* ===== List rows ===== */
.list-section{
  background:var(--bg);
  position:relative;
}
.list-section::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:1px;
  background:linear-gradient(90deg,transparent,var(--border),transparent);
}
.list-rows{
  display:flex;
  flex-direction:column;
  gap:24px;
}
.list-row{
  display:flex;
  align-items:center;
  gap:24px;
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px;
  box-shadow:var(--shadow-card);
  transition:all .3s ease;
}
.list-row:hover{
  box-shadow:var(--shadow-hover);
  border-color:var(--primary-soft);
  transform:translateY(-3px);
}
.list-row-media{
  width:220px;
  flex-shrink:0;
  border-radius:10px;
  overflow:hidden;
}
.list-row-media img{
  width:100%;
  height:140px;
  object-fit:cover;
  transition:transform .4s ease;
}
.list-row:hover .list-row-media img{
  transform:scale(1.04);
}
.list-row-content{
  flex:1;
  min-width:0;
}
.list-row-tag{
  display:inline-block;
  padding:3px 12px;
  background:var(--primary-light);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  border-radius:var(--radius-tag);
  margin-bottom:8px;
}
.list-row-title{
  font-size:18px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:6px;
  line-height:1.4;
  transition:color .2s ease;
}
.list-row:hover .list-row-title{
  color:var(--primary);
}
.list-row-desc{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:10px;
}
.list-row-meta{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:var(--text-muted);
}
.list-row-meta i{
  font-size:13px;
  color:var(--primary);
  width:16px;
}
.list-row-arrow{
  color:var(--text-muted);
  font-size:20px;
  transition:all .25s ease;
  margin-left:8px;
  flex-shrink:0;
}
.list-row:hover .list-row-arrow{
  color:var(--primary);
  transform:translateX(6px);
}

/* ===== Banner strip ===== */
.banner-strip{
  background:var(--primary);
  border-radius:16px;
  padding:28px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin-top:48px;
  background-image:linear-gradient(135deg,var(--primary) 0%,#4A86E8 100%);
}
.banner-strip-text{
  color:#fff;
  display:flex;
  align-items:center;
  gap:14px;
}
.banner-strip-text i{
  font-size:30px;
  opacity:0.9;
}
.banner-strip-text h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:4px;
}
.banner-strip-text p{
  font-size:14px;
  opacity:0.85;
  margin:0;
}
.btn-light{
  background:#fff;
  color:var(--primary);
  border:none;
  border-radius:var(--radius-btn);
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  transition:all .25s ease;
  box-shadow:0 4px 14px rgba(0,0,0,0.12);
  display:inline-flex;align-items:center;gap:8px;
  white-space:nowrap;
}
.btn-light:hover{
  background:var(--primary-light);
  color:var(--primary-dark);
  transform:translateY(-2px);
}
/* ===== Steps ===== */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:40px;
}
.step-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:16px;
  padding:28px 24px;
  text-align:center;
  box-shadow:var(--shadow-card);
  transition:all .3s ease;
  position:relative;
}
.step-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.step-card::before{
  content:attr(data-step);
  position:absolute;
  top:16px;right:20px;
  font-size:42px;
  font-weight:800;
  color:var(--primary-light);
  line-height:1;
  z-index:0;
}
.step-icon{
  width:52px;height:52px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  font-size:22px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
  position:relative;z-index:1;
}
.step-card h3{
  font-size:17px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:8px;
  position:relative;z-index:1;
}
.step-card p{
  font-size:14px;
  color:var(--text-sub);
  margin:0;
  position:relative;z-index:1;
}

/* ===== FAQ ===== */
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow-card);
  margin-bottom:16px;
  overflow:hidden;
  transition:all .25s ease;
}
.faq-item:hover{
  border-color:var(--primary-soft);
  box-shadow:var(--shadow-hover);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  background:none;
  border:none;
  width:100%;
  text-align:left;
  transition:color .2s ease;
}
.faq-question:hover{color:var(--primary);}
.faq-icon{
  width:30px;height:30px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  flex-shrink:0;
  transition:all .3s ease;
}
.faq-item.active .faq-icon{
  background:var(--primary);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 24px 20px;
  font-size:14px;
  color:var(--text-sub);
  line-height:1.85;
  border-top:1px dashed var(--border);
  padding-top:14px;
}

/* ===== CTA ===== */
.cta-section{
  background:var(--primary-light);
  padding:64px 0;
}
.cta-box{
  background:var(--card-bg);
  border-radius:20px;
  padding:48px;
  text-align:center;
  box-shadow:var(--shadow-card);
  border:1px solid var(--border);
  max-width:860px;
  margin:0 auto;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:"";
  position:absolute;
  top:-40px;right:-40px;
  width:120px;height:120px;
  border-radius:50%;
  background:var(--primary-light);
  z-index:0;
}
.cta-box h2{
  font-size:26px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:12px;
  position:relative;z-index:1;
}
.cta-box p{
  font-size:15px;
  color:var(--text-sub);
  max-width:520px;
  margin:0 auto 28px;
  position:relative;z-index:1;
}
.cta-box .btn-primary{
  position:relative;z-index:1;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--footer-bg);
  color:var(--footer-text);
  padding-top:64px;
}
.footer-columns{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-brand-logo{
  font-size:20px;
  font-weight:700;
  color:#fff;
  display:flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.footer-brand-logo .brand-mark{
  width:32px;height:32px;border-radius:8px;
  font-size:16px;
  background:var(--primary);
}
.footer-brand-description{
  font-size:14px;
  line-height:1.7;
  color:var(--footer-text);
}
.footer-title{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links li{
  margin-bottom:8px;
}
.footer-links a{
  font-size:14px;
  color:var(--footer-text);
  transition:all .2s ease;
}
.footer-links a i{
  font-size:12px;
  margin-right:4px;
  color:var(--primary-soft);
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact-info p{
  font-size:14px;
  margin-bottom:10px;
  display:flex;align-items:center;gap:8px;
}
.footer-contact-info i{
  color:var(--primary-soft);
  width:18px;
}
.footer-qr-code{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:16px;
}
.qr-placeholder{
  width:74px;height:74px;
  background:rgba(255,255,255,0.1);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--footer-text);
  font-size:36px;
}
.social-icons{
  display:flex;gap:10px;
}
.social-icons a{
  width:38px;height:38px;
  border-radius:50%;
  background:rgba(255,255,255,0.1);
  color:var(--footer-text);
  display:flex;align-items:center;justify-content:center;
  transition:all .25s ease;
}
.social-icons a:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}
.footer-bottom{
  padding:20px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
}
.copyright{
  font-size:13px;
  color:var(--footer-text);
}
.back-to-top{
  background:none;
  border:none;
  color:var(--footer-text);
  font-size:13px;
  display:flex;align-items:center;gap:6px;
  transition:color .2s ease;
  padding:4px 8px;
  border-radius:6px;
}
.back-to-top:hover{
  color:#fff;
}

/* ===== Sticky bar ===== */
.sticky-bar{
  position:fixed;
  bottom:0;left:0;right:0;
  background:#fff;
  box-shadow:0 -4px 16px rgba(31,42,68,0.08);
  z-index:900;
  padding:10px 0;
  border-top:1px solid var(--border);
}
.sticky-bar .container-custom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.sticky-bar-text{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-main);
  font-weight:500;
}
.sticky-bar-text i{
  color:var(--primary);
  font-size:18px;
}
.sticky-bar-phone{
  color:var(--primary);
  font-weight:700;
  font-size:16px;
}
.sticky-btn{
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:var(--radius-btn);
  padding:10px 26px;
  font-size:15px;
  font-weight:600;
  transition:all .2s ease;
  box-shadow:0 4px 12px rgba(240,162,58,0.3);
  display:inline-flex;align-items:center;gap:8px;
  white-space:nowrap;
}
.sticky-btn:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-1px);
}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .hero-title{font-size:36px;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .footer-columns{grid-template-columns:1fr 1fr;}
  .intro-panel{flex-direction:column;padding:28px;}
  .header-contact-item:last-child{display:none;}
  .banner-strip{flex-direction:column;text-align:center;align-items:center;}
}
@media screen and (max-width:768px){
  .section{padding:var(--space-section-mobile) 0;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:16px;}
  .header-contact{display:none;}
  .header-brand-row .container-custom{height:60px;}
  .channel-nav{overflow-x:auto;display:flex;flex-wrap:nowrap;width:100%;}
  .channel-nav li{flex-shrink:0;}
  .channel-nav li a{white-space:nowrap;}
  .list-row{flex-direction:column;align-items:flex-start;gap:16px;padding:16px;}
  .list-row-media{width:100%;}
  .list-row-media img{height:170px;}
  .list-row-arrow{display:none;}
  .section-title{font-size:24px;}
  .steps-grid{grid-template-columns:1fr;}
  .footer-columns{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .cta-box{padding:32px 24px;}
  .cta-box h2{font-size:22px;}
  .banner-strip{padding:24px 20px;}
  .banner-strip-text{flex-direction:column;text-align:center;gap:8px;}
  .sticky-bar-text span.sticky-hide-mobile{display:none;}
  .sticky-btn{padding:10px 18px;font-size:14px;}
}
@media screen and (max-width:520px){
  .hero-title{font-size:26px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary{justify-content:center;}
  .brand-text{font-size:17px;}
  .section-head{margin-bottom:30px;}
  .intro-panel{padding:20px;}
  .footer-bottom{justify-content:center;text-align:center;}
  .back-to-top{margin-top:8px;}
  .sticky-bar-text i{font-size:16px;}
  .sticky-bar-phone{font-size:14px;}
  .sticky-btn span{display:none;}
}

/* roulang page: article */
:root {
  --primary: #2F6EE1;
  --primary-light: #EAF2FF;
  --primary-lighter: #D6E6FF;
  --primary-dark: #1E4FA6;
  --cta: #F0A23A;
  --cta-hover: #D98A24;
  --bg: #F6F8FB;
  --card-bg: #FFFFFF;
  --text-main: #1F2A44;
  --text-secondary: #54617A;
  --text-muted: #8896AB;
  --border: #E4EAF2;
  --success: #27A67E;
  --footer-bg: #12263A;
  --footer-text: #A9BCD0;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 999px;
  --shadow: 0 2px 12px rgba(31,42,68,0.06);
  --shadow-hover: 0 10px 28px rgba(31,42,68,0.12);
  --btn-shadow: 0 6px 16px rgba(47,110,225,0.3);
  --transition: all 0.3s ease;
  --space-section: 84px;
  --container-width: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--primary-lighter); outline-offset: 2px; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { cursor: pointer; font-family: inherit; }
.mr-1 { margin-right: 4px; }
.container-custom { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 800px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 22px; border-radius: var(--radius); font-size: 15px; font-weight: 600;
  line-height: 1.4; border: none; cursor: pointer; transition: var(--transition);
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--btn-shadow); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(30,79,166,0.35); }
.btn-cta { background: var(--cta); color: #fff; box-shadow: 0 6px 16px rgba(240,162,58,0.3); }
.btn-cta:hover { background: var(--cta-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(217,138,36,0.35); }
.btn-secondary { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.btn-secondary:hover { background: var(--primary-light); color: var(--primary-dark); }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.6); }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; transform: translateY(-2px); border-color: #fff; }
.btn-link { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; font-size: 15px; background: none; border: none; padding: 0; }
.btn-link i { font-size: 13px; transition: transform 0.3s; }
.btn-link:hover i { transform: translateX(4px); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: var(--radius); }

.site-header { position: sticky; top: 0; z-index: 1000; background: #fff; box-shadow: 0 2px 12px rgba(31,42,68,0.08); }
.header-brand-row { height: 64px; display: flex; align-items: center; }
.header-brand-row .container-custom { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { width: 38px; height: 38px; background: var(--primary); color: #fff; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; box-shadow: 0 4px 12px rgba(47,110,225,0.3); }
.brand-text { font-size: 21px; font-weight: 700; color: var(--text-main); letter-spacing: 0.5px; }
.brand-text span { color: var(--primary); }
.header-contact { display: flex; align-items: center; gap: 14px; }
.header-contact-item { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-secondary); }
.header-contact-item i { color: var(--primary); }
.header-cta { padding: 8px 18px; font-size: 14px; }
.header-channel-row { border-top: 1px solid var(--border); background: #fff; }
.channel-nav { display: flex; align-items: center; gap: 8px; padding: 8px 0; }
.channel-nav li a {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 18px;
  border-radius: 999px; font-size: 15px; font-weight: 500; color: var(--text-secondary);
  border: 1px solid transparent; background: transparent;
}
.channel-nav li a i { font-size: 13px; }
.channel-nav li a:hover { background: var(--primary-light); color: var(--primary); }
.channel-nav li a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.mobile-menu-btn { display: none; background: #fff; border: 1px solid var(--border); border-radius: 8px; width: 40px; height: 40px; color: var(--text-main); font-size: 18px; align-items: center; justify-content: center; transition: var(--transition); }
.mobile-menu-btn:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }

.article-hero {
  position: relative;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
  padding: 48px 0 36px;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
  opacity: 0.08;
}
.article-hero::after {
  content: '';
  position: absolute; right: 6%; top: 18%;
  width: 130px; height: 130px;
  background: url('/assets/images/coverpic/cover-2.webp') center/cover;
  border-radius: 24px; opacity: 0.2; transform: rotate(8deg);
}
.article-header-inner { position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 16px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--text-muted); font-size: 12px; }
.breadcrumb-current { color: var(--text-secondary); font-weight: 500; }
.article-category { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-light); color: var(--primary); padding: 5px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.article-title { font-size: 38px; line-height: 1.3; font-weight: 700; color: var(--text-main); margin: 16px 0 14px; letter-spacing: 0.2px; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; color: var(--text-muted); font-size: 14px; margin-top: 18px; }
.article-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta-divider { width: 4px; height: 4px; background: var(--text-muted); border-radius: 50%; }
.article-meta-item i { color: var(--primary); }

.article-main { padding-bottom: var(--space-section); }
.article-body {
  background: #fff; border-radius: 16px; box-shadow: var(--shadow);
  border: 1px solid var(--border); padding: 48px 56px; margin-top: 28px;
}
.article-body p { line-height: 1.8; font-size: 16px; color: var(--text-secondary); margin-bottom: 22px; }
.article-body h2 { font-size: 24px; font-weight: 700; color: var(--text-main); margin: 36px 0 16px; padding-top: 14px; border-top: 1px solid var(--border); }
.article-body h3 { font-size: 19px; font-weight: 600; color: var(--text-main); margin: 26px 0 12px; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-dark); }
.article-body blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 18px 22px; border-radius: 0 var(--radius) var(--radius) 0; margin: 24px 0; color: var(--text-main); font-size: 15px; }
.article-body ul, .article-body ol { padding-left: 22px; margin: 0 0 22px; }
.article-body ul { list-style: disc; }
.article-body ul li::marker { color: var(--primary); }
.article-body ol { list-style: decimal; }
.article-body ol li::marker { color: var(--primary); font-weight: 600; }
.article-body li { margin-bottom: 8px; line-height: 1.7; color: var(--text-secondary); }
.article-body img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 10px 14px; font-size: 14px; }
.article-body th { background: var(--primary-light); color: var(--text-main); font-weight: 600; }

.article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--border); }
.tags-label { font-size: 14px; font-weight: 600; color: var(--text-main); display: inline-flex; align-items: center; gap: 6px; }
.tag-item { display: inline-flex; align-items: center; gap: 4px; background: var(--bg); border: 1px solid var(--border); color: var(--text-secondary); padding: 6px 14px; border-radius: 999px; font-size: 13px; transition: var(--transition); }
.tag-item:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

.not-found { text-align: center; padding: 56px 24px; }
.not-found-icon { width: 80px; height: 80px; background: var(--primary-light); border-radius: 50%; color: var(--primary); font-size: 30px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.not-found h3 { font-size: 24px; margin-bottom: 16px; color: var(--text-main); }
.not-found a { display: inline-flex; align-items: center; gap: 8px; margin-top: 8px; }

.related-section { padding: 60px 0; background: var(--bg); border-top: 1px solid var(--border); }
.section-title-wrap { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; gap: 16px; flex-wrap: wrap; }
.section-title-wrap h2 { font-size: 28px; font-weight: 700; margin: 0; color: var(--text-main); display: flex; align-items: center; gap: 10px; }
.section-title-wrap h2 i { color: var(--primary); }
.related-card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px;
  overflow: hidden; box-shadow: var(--shadow); transition: var(--transition);
  display: block; height: 100%;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.related-card-img { height: 180px; overflow: hidden; background: var(--primary-light); position: relative; }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-card-body { padding: 20px; }
.related-card-body h3 { font-size: 17px; font-weight: 600; margin: 0 0 10px; line-height: 1.5; color: var(--text-main); }
.related-card-date { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.related-card-date i { color: var(--primary); }

.cta-banner { background: var(--footer-bg); padding: 56px 0; text-align: center; }
.cta-banner-inner h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-banner-inner p { color: var(--footer-text); font-size: 16px; max-width: 640px; margin: 0 auto 28px; line-height: 1.7; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: var(--footer-bg); color: var(--footer-text); }
.site-footer .container-custom { padding-top: 64px; padding-bottom: 24px; }
.footer-columns { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.footer-brand-logo .brand-mark { width: 34px; height: 34px; font-size: 18px; }
.footer-brand-description { font-size: 14px; line-height: 1.8; color: var(--footer-text); margin-bottom: 0; }
.footer-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--footer-text); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact-info p { margin-bottom: 10px; color: var(--footer-text); font-size: 14px; display: flex; align-items: center; gap: 8px; }
.footer-contact-info i { color: var(--primary); width: 16px; text-align: center; }
.footer-qr-code { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.qr-placeholder { width: 88px; height: 88px; background: rgba(255,255,255,0.1); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 32px; color: #fff; }
.social-icons { display: flex; gap: 10px; }
.social-icons a { width: 36px; height: 36px; background: rgba(255,255,255,0.08); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--footer-text); font-size: 15px; }
.social-icons a:hover { background: var(--primary); color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; font-size: 13px; color: var(--footer-text); gap: 16px; flex-wrap: wrap; }
.back-to-top { background: rgba(255,255,255,0.08); border: none; color: var(--footer-text); padding: 8px 16px; border-radius: 999px; font-size: 13px; display: inline-flex; align-items: center; gap: 6px; cursor: pointer; transition: var(--transition); }
.back-to-top:hover { background: var(--primary); color: #fff; }

@media (max-width: 1024px) {
  .footer-columns { grid-template-columns: 1fr 1fr; }
  .header-contact-item:first-child { display: none; }
  .channel-nav { gap: 4px; }
  .channel-nav li a { padding: 8px 14px; }
  .article-hero::after { right: 3%; width: 100px; height: 100px; }
}
@media (max-width: 768px) {
  .mobile-menu-btn { display: inline-flex; }
  .header-contact { display: none; }
  .header-channel-row { display: none; border-top: 1px solid var(--border); }
  .header-channel-row.open { display: block; box-shadow: 0 10px 20px rgba(31,42,68,0.08); }
  .channel-nav { flex-direction: column; align-items: stretch; padding: 10px 16px 14px; }
  .channel-nav li a { justify-content: flex-start; width: 100%; border-radius: 10px; }
  .article-hero { padding: 32px 0 24px; }
  .article-hero::after { display: none; }
  .article-title { font-size: 28px; }
  .article-body { padding: 24px 20px; margin-top: 16px; }
  .related-section { padding: 40px 0; }
  .section-title-wrap { margin-bottom: 24px; }
  .footer-columns { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-banner { padding: 40px 0; }
  .cta-banner-inner h2 { font-size: 24px; }
  .container-custom { padding: 0 16px; }
  .container-narrow { padding: 0 16px; }
}
@media (max-width: 520px) {
  .header-brand-row { height: 58px; }
  .brand-text { font-size: 18px; }
  .header-cta { font-size: 13px; padding: 8px 12px; }
  .article-body p { font-size: 15px; }
  .article-meta { gap: 12px; }
  .cta-btns { flex-direction: column; align-items: center; }
}