/* roulang page: index */
:root {
            --primary: #3A7BDF;
            --primary-dark: #2F64BA;
            --teal: #0EA5A4;
            --amber: #F59E0B;
            --bg: #F5F8FC;
            --white: #FFFFFF;
            --section-alt: #EAF1F8;
            --text: #1E2A38;
            --text-light: #4B5B6B;
            --border: #D3E0F0;
            --radius-lg: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow-card: 0 10px 30px rgba(41, 82, 138, 0.08);
            --shadow-hero: 0 20px 60px rgba(41, 82, 138, 0.14);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(58, 123, 223, 0.4);
            outline-offset: 2px;
        }

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

        .row {
            --bs-gutter-x: 2rem;
        }

        section {
            padding: clamp(72px, 8vw, 100px) 0;
            position: relative;
        }

        /* ========== 按钮 ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 46px;
            padding: 10px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(58, 123, 223, 0.25);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(58, 123, 223, 0.35);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(58, 123, 223, 0.25);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 46px;
            padding: 10px 28px;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--border);
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            background: rgba(58, 123, 223, 0.04);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(30, 42, 56, 0.05);
        }

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

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text) !important;
            letter-spacing: 0.5px;
            line-height: 1;
        }

        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--teal));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 8px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 14px !important;
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(58, 123, 223, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(58, 123, 223, 0.08);
            font-weight: 600;
        }

        .btn-header {
            margin-left: 8px;
            min-height: 44px;
            padding: 8px 22px;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 223, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%233A7BDF' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: 16px;
                margin-top: 12px;
                box-shadow: var(--shadow-card);
            }

            .navbar-nav {
                gap: 4px;
            }

            .btn-header {
                margin: 12px 0 0;
                width: 100%;
            }
        }

        /* ========== Hero ========== */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, #EFF5FC 0%, #FFFFFF 60%);
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 460px;
            height: 460px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(58, 123, 223, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hero-badges .badge {
            background: #fff;
            border: 1px solid var(--border);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            line-height: 1.4;
        }

        .hero-visual {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-hero);
            background: linear-gradient(135deg, rgba(58, 123, 223, 0.08), rgba(14, 165, 164, 0.06));
        }

        .hero-visual img {
            width: 100%;
            height: 440px;
            object-fit: cover;
        }

        .hero-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(19, 42, 68, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        /* ========== 三步上手 ========== */
        .steps-section {
            background: var(--white);
        }

        .section-head {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
        }

        .step-item {
            position: relative;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            height: 100%;
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 40px rgba(41, 82, 138, 0.12);
        }

        .step-num {
            font-size: 34px;
            font-weight: 800;
            color: rgba(58, 123, 223, 0.18);
            position: absolute;
            top: 22px;
            right: 24px;
            line-height: 1;
        }

        .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--teal));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .step-item h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }

        .step-item p {
            color: var(--text-light);
            margin: 0;
            font-size: 15px;
        }

        @media (min-width: 992px) {
            .step-item::after {
                content: "";
                position: absolute;
                top: 64px;
                left: calc(100% - 5px);
                width: calc(100% - 40px);
                height: 2px;
                background: linear-gradient(90deg, rgba(58, 123, 223, 0.35), rgba(14, 165, 164, 0.35));
                z-index: 0;
                pointer-events: none;
            }

            .col-lg-4:last-child .step-item::after {
                display: none;
            }
        }

        /* ========== 案例证明 ========== */
        .proof-section {
            background: var(--bg);
        }

        .proof-banner {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-hero);
        }

        .proof-banner img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .proof-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 40px;
            background: linear-gradient(0deg, rgba(19, 42, 68, 0.85) 0%, transparent 100%);
            color: #fff;
        }

        .proof-overlay h3 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .proof-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
        }

        .stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        .proof-card {
            display: flex;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            height: 100%;
        }

        .proof-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 40px rgba(41, 82, 138, 0.12);
        }

        .proof-card img {
            width: 180px;
            min-height: 180px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .proof-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .proof-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .proof-card-body p {
            color: var(--text-light);
            margin: 0;
            font-size: 14px;
            line-height: 1.7;
        }

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

        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 12px !important;
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--primary) !important;
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: #fff;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(58, 123, 223, 0.04);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button::before {
            content: "?";
            width: 24px;
            height: 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 14px;
            flex-shrink: 0;
        }

        .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            content: "\f078";
            font-weight: 900;
            background: none;
            width: auto;
            height: auto;
            transition: transform 0.25s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-body {
            padding: 6px 20px 20px 58px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg);
        }

        .cta-box {
            background: linear-gradient(135deg, #EFF5FC 0%, #FFFFFF 100%);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 60px;
            text-align: center;
            box-shadow: var(--shadow-hero);
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .cta-box>p {
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-form {
            max-width: 560px;
            margin: 0 auto;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0 16px;
            font-size: 15px;
            background: #fff;
            color: var(--text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .cta-form input::placeholder {
            color: #9DB1C7;
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(58, 123, 223, 0.1);
        }

        .cta-form .btn {
            min-height: 48px;
        }

        /* ========== 最新资讯 ========== */
        .news-section {
            background: var(--white);
        }

        .news-card {
            display: flex;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 40px rgba(41, 82, 138, 0.12);
        }

        .news-card-img {
            width: 220px;
            min-height: 180px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

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

        .badge-tag {
            display: inline-block;
            background: rgba(58, 123, 223, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
            align-self: flex-start;
            line-height: 1.5;
        }

        .news-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-card-body h3 a {
            color: var(--text);
            transition: color 0.2s ease;
        }

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

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

        .news-meta {
            margin-top: auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
        }

        .news-meta a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-empty {
            text-align: center;
            padding: 48px;
            background: var(--bg);
            border-radius: 16px;
            color: var(--text-light);
            font-size: 15px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #132A44;
            color: #C7D6E8;
            padding: 72px 0 0;
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

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

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

        .site-footer ul a {
            color: #C7D6E8;
            transition: color 0.2s ease;
        }

        .site-footer ul a:hover {
            color: #fff;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(199, 214, 232, 0.85);
        }

        .footer-contact p {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-bottom {
            margin-top: 56px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(199, 214, 232, 0.7);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .hero-title {
                font-size: 38px;
            }

            .hero-visual img {
                height: 320px;
            }

            .proof-card {
                flex-direction: column;
            }

            .proof-card img {
                width: 100%;
                height: 200px;
            }

            .news-card {
                flex-direction: column;
            }

            .news-card-img {
                width: 100%;
                height: 200px;
            }

            .site-footer .row>div {
                margin-bottom: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .hero-section {
                padding-top: 120px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-badges .badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .step-item::after {
                display: none;
            }

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

            .proof-banner img {
                height: 260px;
            }

            .proof-overlay {
                padding: 24px;
            }

            .proof-overlay h3 {
                font-size: 18px;
            }

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

            .cta-box {
                padding: 36px 20px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form input {
                width: 100%;
                min-width: 0;
            }

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

        @media (max-width: 575.98px) {
            .hero-actions .btn {
                width: 100%;
            }

            .hero-visual img {
                height: 240px;
            }

            .proof-stats {
                gap: 20px;
            }

            .accordion-body {
                padding-left: 20px;
            }

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

/* roulang page: category1 */
:root {
            --primary: #3A7BDF;
            --primary-dark: #2F64BA;
            --secondary: #0EA5A4;
            --accent: #F59E0B;
            --bg-body: #F5F8FC;
            --bg-card: #FFFFFF;
            --bg-soft: #EAF1F8;
            --text-main: #1E2A38;
            --text-sub: #4B5B6B;
            --text-light: #7A8B9F;
            --border-color: #D3E0F0;
            --radius-lg: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-sm: 0 10px 30px rgba(41, 82, 138, 0.08);
            --shadow-lg: 0 20px 60px rgba(41, 82, 138, 0.14);
            --transition-base: all 0.25s ease;
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 15px;
            line-height: 1.75;
            background: var(--bg-body);
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .site-header {
            background: #FFFFFF;
            border-bottom: 1px solid #E8EFF5;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(41, 82, 138, 0.04);
        }

        .site-header .navbar {
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }

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

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            margin-right: 10px;
            box-shadow: 0 4px 12px rgba(58, 123, 223, 0.25);
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #35495E;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            margin: 0 2px;
            transition: var(--transition-base);
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: #F0F5FB;
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: #F0F5FB;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-header {
            min-height: 44px;
            padding: 8px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #FFFFFF;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #FFFFFF;
            box-shadow: 0 8px 20px rgba(58, 123, 223, 0.35);
            transform: translateY(-2px);
        }

        .btn-primary-custom:focus-visible {
            outline: 3px solid rgba(58, 123, 223, 0.4);
            outline-offset: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 223, 0.2);
        }

        .me-auto,
        .mx-auto {
            margin: 0 auto !important;
        }

        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #EFF5FC 0%, #FFFFFF 60%);
            padding: 70px 0 50px;
            overflow: hidden;
            border-bottom: 1px solid #E8EFF5;
        }

        .page-banner .banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }

        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .breadcrumb-nav a {
            color: var(--text-light);
        }

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

        .breadcrumb-nav .separator {
            margin: 0 8px;
            color: #C0CEDF;
        }

        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 1px;
            line-height: 1.25;
        }

        .page-banner .banner-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 640px;
            line-height: 1.8;
        }

        .page-banner .banner-meta {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .banner-meta .meta-tag {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-pill);
            padding: 5px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .banner-meta .meta-tag i {
            font-size: 12px;
            color: var(--secondary);
        }

        .section-block {
            padding: clamp(60px, 6vw, 80px) 0;
        }

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-title-wrap .section-tag {
            display: inline-block;
            background: rgba(58, 123, 223, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
        }

        .section-title-wrap h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .section-title-wrap p {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 600px;
        }

        .login-methods {
            background: var(--bg-card);
        }

        .method-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 30px 28px;
            border: 1px solid #EDF3F9;
            transition: var(--transition-base);
            height: 100%;
        }

        .method-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-4px);
            border-color: #C9DCF0;
        }

        .method-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(58, 123, 223, 0.12), rgba(14, 165, 164, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 18px;
        }

        .method-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .method-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .method-steps {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .method-steps li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            padding: 5px 0;
        }

        .method-steps li i {
            color: var(--secondary);
            font-size: 12px;
        }

        .login-steps-section {
            background: var(--bg-soft);
            border-top: 1px solid #E0E9F2;
            border-bottom: 1px solid #E0E9F2;
        }

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 30px 28px;
            position: relative;
            height: 100%;
            border: 1px solid #EDF3F9;
            transition: var(--transition-base);
        }

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

        .step-num {
            font-size: 36px;
            font-weight: 800;
            color: rgba(58, 123, 223, 0.18);
            line-height: 1;
            margin-bottom: 14px;
            display: block;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .step-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .step-card ul li {
            font-size: 14px;
            color: var(--text-sub);
            padding: 4px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .step-card ul li i {
            color: var(--secondary);
            font-size: 12px;
            margin-top: 6px;
        }

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

        .env-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            border-left: 4px solid var(--primary);
            height: 100%;
            transition: var(--transition-base);
        }

        .env-card:hover {
            border-left-color: var(--secondary);
            box-shadow: var(--shadow-sm);
        }

        .env-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .env-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .env-icon {
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 12px;
            display: block;
        }

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

        .accordion-item {
            border: 1px solid #E3EBF3 !important;
            border-radius: 12px !important;
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-button {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: #FFFFFF;
            border: 1px solid #E3EBF3;
            transition: var(--transition-base);
        }

        .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            content: "\f078";
            font-weight: 900;
            background: none;
            width: auto;
            height: auto;
            color: var(--primary);
            margin-left: auto;
        }

        .accordion-button:not(.collapsed) {
            background: #FFFFFF;
            color: var(--primary);
            box-shadow: none;
            border-color: rgba(58, 123, 223, 0.3);
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(-180deg);
            color: var(--primary);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 223, 0.15);
        }

        .accordion-body {
            padding: 18px 20px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            border-top: 1px solid #F0F4F9;
            background: #FFFFFF;
        }

        .faq-badge {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 8px;
            flex-shrink: 0;
        }

        .cta-section {
            background: linear-gradient(135deg, #EFF5FC 0%, #FFFFFF 100%);
            border-bottom: 1px solid #E8EFF5;
        }

        .cta-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 44px;
            text-align: center;
            border: 1px solid #EDF3F9;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-card p {
            font-size: 15px;
            color: var(--text-sub);
            max-width: 600px;
            margin: 0 auto 26px;
        }

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

        .btn-secondary-custom {
            min-height: 46px;
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-base);
        }

        .btn-secondary-custom:hover,
        .btn-secondary-custom:focus {
            background: rgba(58, 123, 223, 0.04);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-secondary-custom:focus-visible {
            outline: 3px solid rgba(58, 123, 223, 0.4);
            outline-offset: 2px;
        }

        .site-footer {
            background: #132A44;
            color: #C7D6E8;
            padding-top: 60px;
            border-top: 3px solid var(--secondary);
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #9FB4CB;
            max-width: 320px;
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

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

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: #C7D6E8;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .site-footer ul li a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: #C7D6E8;
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #8FA4BD;
            margin: 0;
        }

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            cursor: pointer;
            box-shadow: 0 6px 18px rgba(58, 123, 223, 0.35);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-base);
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        @media (min-width: 992px) {
            .navbar-nav .nav-link {
                padding-left: 16px !important;
                padding-right: 16px !important;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                padding-top: 10px;
            }

            .navbar-nav .nav-link {
                padding: 12px 16px !important;
                border-radius: var(--radius-sm);
                margin: 2px 0;
            }

            .navbar-nav .nav-link.active::after {
                left: 16px;
                right: auto;
                width: 24px;
            }

            .btn-header {
                margin-top: 12px;
                width: 100%;
            }

            .page-banner {
                padding: 48px 0 38px;
            }

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

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

            .cta-card {
                padding: 32px 24px;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn-primary-custom,
            .cta-actions .btn-secondary-custom {
                width: 100%;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

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

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

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

            .page-banner .banner-meta .meta-tag {
                padding: 4px 12px;
                font-size: 12px;
            }

            .method-item,
            .step-card,
            .env-card {
                padding: 24px 20px;
            }

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

            .back-to-top {
                bottom: 18px;
                right: 18px;
                width: 40px;
                height: 40px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header .navbar {
                padding-top: 8px;
                padding-bottom: 8px;
            }

            .navbar-brand {
                font-size: 20px;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }

            .page-banner {
                padding: 38px 0 32px;
            }

            .page-banner h1 {
                font-size: 24px;
                line-height: 1.3;
            }

            .page-banner .banner-desc {
                font-size: 14px;
            }

            .step-num {
                font-size: 30px;
            }

            .cta-card h2 {
                font-size: 22px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #3A7BDF;
            --primary-dark: #2F64BA;
            --teal: #0EA5A4;
            --orange: #F59E0B;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --bg-muted: #EAF1F8;
            --text-head: #1E2A38;
            --text-body: #3D4E5D;
            --text-muted: #6B7B8C;
            --border: #D3E0F0;
            --radius-lg: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 10px 30px rgba(41, 82, 138, 0.08);
            --shadow-lg: 0 20px 60px rgba(41, 82, 138, 0.14);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition: 0.25s ease;
        }

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

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

        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-head); font-weight: 700; line-height: 1.4; }

        .container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
        @media (max-width: 576px) {
            .container { padding-left: 16px; padding-right: 16px; }
        }

        .btn { border-radius: var(--radius-sm); font-weight: 600; transition: all var(--transition); }
        .btn:focus { box-shadow: 0 0 0 3px rgba(58,123,223,0.25); outline: none; }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .btn-primary-custom:hover {
            background: #2F64BA;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(58,123,223,0.35);
        }
        .btn-primary-custom:active { transform: translateY(0); box-shadow: none; }

        .btn-secondary-custom {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--border);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .btn-secondary-custom:hover {
            border-color: var(--primary);
            background: rgba(58,123,223,0.04);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-secondary-custom:active { transform: translateY(0); }

        .btn-white-custom {
            background: #fff;
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .btn-white-custom:hover {
            background: var(--bg-muted);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        }

        .btn-outline-white-custom {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255,255,255,0.8);
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            min-height: 46px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .btn-outline-white-custom:hover {
            background: rgba(255,255,255,0.15);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Header Nav ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--bg-muted);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(41,82,138,0.06);
        }

        .navbar { padding: 12px 0; }

        .navbar-brand {
            font-weight: 800;
            font-size: 22px;
            color: var(--text-head);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--teal));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-link {
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px;
            margin: 0 4px;
            border-radius: 8px;
            transition: all var(--transition);
            font-size: 15px;
        }
        .nav-link:hover { background: #F0F6FE; color: var(--primary); }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(58,123,223,0.08);
        }

        .btn-header { padding: 10px 20px; font-size: 15px; min-height: 44px; margin-left: 8px; }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(58,123,223,0.2); }
        .navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%233A7BDF' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }

        /* ===== 面包屑 ===== */
        .article-breadcrumb { padding: 28px 0 8px; }

        .breadcrumb {
            background: transparent;
            padding: 8px 0;
            margin: 0;
            font-size: 14px;
        }
        .breadcrumb-item + .breadcrumb-item::before { content: "›"; color: var(--text-muted); }
        .breadcrumb-item a { color: var(--primary); font-weight: 500; }
        .breadcrumb-item.active { color: var(--text-muted); }

        /* ===== 文章主体 ===== */
        .article-section { padding: 16px 0 72px; }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
        }

        .article-header {
            margin-bottom: 32px;
            border-bottom: 1px solid var(--bg-muted);
            padding-bottom: 24px;
        }

        .article-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-head);
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .category-badge {
            background: rgba(58,123,223,0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .meta-date { color: var(--text-muted); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }

        .article-content { font-size: 16px; line-height: 1.85; color: var(--text-body); word-wrap: break-word; }

        .article-content > *:first-child { margin-top: 0; }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-head);
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }
        .article-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-head);
            margin: 28px 0 12px;
        }
        .article-content p { margin: 16px 0; }
        .article-content ul, .article-content ol { margin: 16px 0; padding-left: 24px; }
        .article-content li { margin: 8px 0; }
        .article-content img {
            border-radius: var(--radius-lg);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
            width: auto;
            max-width: 100%;
        }
        .article-content blockquote {
            background: var(--bg-muted);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 16px 20px;
            margin: 24px 0;
            color: var(--text-body);
            font-style: normal;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content table th { background: var(--bg-muted); font-weight: 600; color: var(--text-head); }
        .article-content code {
            background: var(--bg-muted);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 14px;
            color: var(--primary-dark);
        }

        /* 内容未找到 */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--border);
            margin-bottom: 20px;
            display: block;
        }
        .not-found-box h2 { font-size: 24px; color: var(--text-head); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-muted); margin: 0 0 28px; max-width: 420px; margin-left: auto; margin-right: auto; }

        /* 正文底部导航 */
        .article-footer-nav {
            display: flex;
            gap: 12px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--bg-muted);
            flex-wrap: wrap;
        }

        /* ===== 侧边栏 ===== */
        .related-sidebar {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px;
            position: sticky;
            top: 90px;
        }

        .sidebar-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-head);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-title i { color: var(--primary); }

        .related-card {
            display: flex;
            gap: 14px;
            padding: 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            margin-bottom: 12px;
        }
        .related-card:last-child { margin-bottom: 0; }
        .related-card:hover { background: var(--bg-page); transform: translateX(4px); }

        .related-card img {
            width: 90px;
            height: 72px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .related-body h3 { font-size: 14px; font-weight: 600; color: var(--text-head); line-height: 1.5; margin: 0 0 6px; }

        .related-body .tag {
            font-size: 11px;
            color: var(--primary);
            background: rgba(58,123,223,0.1);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            display: inline-block;
        }

        /* ===== CTA ===== */
        .article-cta { padding: 72px 0 88px; }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--teal) 100%);
            border-radius: var(--radius-lg);
            padding: 52px 40px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 140px;
            height: 140px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
        }
        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 30px;
            width: 180px;
            height: 180px;
            background: rgba(255,255,255,0.05);
            border-radius: 50%;
        }
        .cta-box h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: rgba(255,255,255,0.92);
            margin-bottom: 28px;
            font-size: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #132A44;
            color: #C7D6E8;
            padding: 60px 0 0;
            border-top: 3px solid var(--orange);
        }

        .site-footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .site-footer ul { list-style: none; padding: 0; margin: 0; }
        .site-footer ul li { margin-bottom: 10px; }
        .site-footer ul li a { color: #C7D6E8; font-size: 14px; transition: all var(--transition); }
        .site-footer ul li a:hover { color: #fff; padding-left: 4px; }

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

        .footer-desc { font-size: 14px; line-height: 1.8; color: #B8C9DC; max-width: 320px; }

        .footer-contact p { font-size: 14px; margin-bottom: 8px; color: #C7D6E8; }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            margin-top: 48px;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #92A8BE;
        }
        .footer-bottom p { margin: 0; }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .container { max-width: 1140px; }
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                padding: 16px 0;
                border-top: 1px solid var(--bg-muted);
                margin-top: 12px;
            }
            .nav-link { padding: 10px 14px; }
            .btn-header { margin: 8px 0 0; width: 100%; }

            .article-card { padding: 28px 24px; }
            .related-sidebar {
                position: static;
                display: flex;
                flex-wrap: wrap;
                gap: 12px;
                margin-top: 24px;
            }
            .sidebar-title { width: 100%; }
            .related-card {
                flex: 1 1 calc(33.333% - 12px);
                flex-direction: column;
                min-width: 140px;
                margin-bottom: 0;
            }
            .related-card img { width: 100%; height: 80px; }
        }

        @media (max-width: 768px) {
            .article-title { font-size: 26px; }
            .article-card { padding: 20px 16px; }
            .article-content { font-size: 15px; }
            .cta-box { padding: 36px 24px; }
            .cta-box h2 { font-size: 22px; }
            .article-section { padding: 8px 0 56px; }
            .article-cta { padding: 56px 0 64px; }
        }

        @media (max-width: 576px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .article-breadcrumb { padding: 16px 0 4px; }
            .related-card { flex: 1 1 100%; flex-direction: row; }
            .related-card img { width: 90px; height: 72px; }
            .article-footer-nav .btn { width: 100%; }
            .cta-buttons .btn { width: 100%; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category2 */
:root {
            --primary: #3A7BDF;
            --primary-dark: #2F64BA;
            --secondary: #0EA5A4;
            --accent: #F59E0B;
            --bg: #F5F8FC;
            --card-bg: #FFFFFF;
            --section-bg: #EAF1F8;
            --text: #1B2A3B;
            --text-light: #4B5B6B;
            --border: #D3E0F0;
            --footer-bg: #132A44;
            --footer-text: #C7D6E8;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow: 0 10px 30px rgba(41, 82, 138, 0.08);
            --shadow-lg: 0 20px 60px rgba(41, 82, 138, 0.14);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 6px 20px rgba(41, 82, 138, 0.05);
        }

        .site-header .navbar {
            padding: 14px 0;
            min-height: 72px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.01em;
        }

        .navbar-brand:hover,
        .navbar-brand:focus {
            color: var(--text);
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            color: #fff;
            font-size: 17px;
            flex-shrink: 0;
            box-shadow: 0 6px 16px rgba(58, 123, 223, 0.28);
        }

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

        .navbar .nav-link {
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition), background var(--transition);
        }

        .navbar .nav-link:hover,
        .navbar .nav-link:focus {
            color: var(--primary);
            background: rgba(58, 123, 223, 0.06);
        }

        .navbar .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .navbar .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(58, 123, 223, 0.2);
            border-color: var(--primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%233A7BDF' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 22px;
            height: 22px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            min-height: 46px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 4px 12px rgba(58, 123, 223, 0.2);
        }

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 20px rgba(58, 123, 223, 0.35);
            transform: translateY(-2px);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(58, 123, 223, 0.25);
        }

        .btn-header {
            min-height: 44px;
            padding: 9px 22px;
            margin-left: 16px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            background: linear-gradient(125deg, rgba(22, 45, 78, 0.88) 0%, rgba(43, 92, 152, 0.72) 100%),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            padding: 76px 0 70px;
            color: #fff;
        }

        .page-banner .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.76);
            margin-bottom: 18px;
        }

        .page-banner .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.86);
            transition: color var(--transition);
        }

        .page-banner .breadcrumb-nav a:hover {
            color: #fff;
        }

        .page-banner .breadcrumb-nav i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .page-banner .banner-desc {
            font-size: 16px;
            line-height: 1.75;
            max-width: 640px;
            color: rgba(255, 255, 255, 0.86);
            margin-bottom: 24px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.24);
            border-radius: var(--radius-pill);
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: #fff;
            backdrop-filter: blur(6px);
        }

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

        /* ===== Section Basics ===== */
        .section-padding {
            padding: clamp(72px, 8vw, 100px) 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(58, 123, 223, 0.1);
            color: var(--primary);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            padding: clamp(72px, 8vw, 100px) 0;
            background: var(--bg);
        }

        .intro-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-media img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            object-position: center;
            border-radius: var(--radius-lg);
        }

        .intro-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(15, 34, 56, 0.55) 100%);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        .intro-media .media-caption {
            position: absolute;
            left: 20px;
            bottom: 18px;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            z-index: 2;
            background: rgba(19, 42, 68, 0.5);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
        }

        .intro-content .section-tag {
            margin-bottom: 16px;
        }

        .intro-content h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 18px;
        }

        .intro-content p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .intro-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
            padding: 7px 0;
        }

        .intro-list li i {
            color: var(--secondary);
            font-size: 14px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        /* ===== Two Column Features ===== */
        .features-section {
            padding: clamp(72px, 8vw, 100px) 0;
            background: var(--section-bg);
        }

        .feature-col {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 32px 28px;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
            border-top: 4px solid var(--primary);
        }

        .feature-col:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .feature-col-teal {
            border-top-color: var(--secondary);
        }

        .feature-col .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: rgba(58, 123, 223, 0.1);
            border-radius: 14px;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 18px;
        }

        .feature-col-teal .feature-icon {
            background: rgba(14, 165, 164, 0.1);
            color: var(--secondary);
        }

        .feature-col h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }

        .feature-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-col ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            padding: 7px 0;
            border-bottom: 1px dashed var(--border);
        }

        .feature-col ul li:last-child {
            border-bottom: none;
        }

        .feature-col ul li i {
            color: var(--primary);
            font-size: 13px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .feature-col-teal ul li i {
            color: var(--secondary);
        }

        /* ===== Resource Cards ===== */
        .resource-section {
            padding: clamp(72px, 8vw, 100px) 0;
            background: var(--bg);
        }

        .resource-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 30px 26px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(211, 224, 240, 0.6);
        }

        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(58, 123, 223, 0.4);
        }

        .resource-card .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, rgba(58, 123, 223, 0.12), rgba(14, 165, 164, 0.12));
            border-radius: 12px;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 16px;
        }

        .resource-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }

        .resource-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .resource-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 4px 0;
        }

        .resource-card .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            padding: clamp(72px, 8vw, 100px) 0;
            background: var(--section-bg);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(41, 82, 138, 0.05);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(58, 123, 223, 0.12);
        }

        .accordion-header .accordion-button {
            background: var(--card-bg);
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            padding: 20px 24px;
            min-height: 58px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            gap: 14px;
            box-shadow: none;
            position: relative;
        }

        .accordion-button::before {
            content: "?";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .accordion-button::after {
            background: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            font-size: 14px;
            color: var(--text-light);
            width: 20px;
            height: 20px;
            margin-left: auto;
            order: 2;
            transition: transform 0.3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .accordion-button:not(.collapsed) {
            background: var(--card-bg);
            color: var(--text);
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(58, 123, 223, 0.4);
            outline-offset: -2px;
        }

        .accordion-button:not(.collapsed)::before {
            background: var(--primary-dark);
        }

        .accordion-body {
            padding: 4px 24px 22px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
            border-top: 1px solid rgba(211, 224, 240, 0.5);
            margin: 0 24px 0 24px;
            padding-left: 0;
            padding-right: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: clamp(72px, 8vw, 100px) 0;
            background: linear-gradient(135deg, #132A44 0%, #1D3B60 55%, #26578F 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(14, 165, 164, 0.14) 0%, transparent 70%);
            border-radius: 50%;
        }

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

        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner .cta-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 18px;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .cta-inner p {
            font-size: 15px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 30px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 13px 30px;
            font-size: 16px;
            font-weight: 600;
            min-height: 50px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 8px 24px rgba(58, 123, 223, 0.35);
        }

        .btn-cta-primary:hover,
        .btn-cta-primary:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 10px 30px rgba(58, 123, 223, 0.5);
            transform: translateY(-2px);
        }

        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #C7D6E8;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: var(--radius-md);
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 500;
            min-height: 50px;
            transition: background var(--transition), border-color var(--transition), color var(--transition);
        }

        .btn-cta-secondary:hover,
        .btn-cta-secondary:focus {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 60px 0 0;
            border-top: 4px solid var(--primary);
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(199, 214, 232, 0.76);
            max-width: 300px;
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .site-footer ul li a {
            color: var(--footer-text);
            font-size: 14px;
            transition: color var(--transition);
        }

        .site-footer ul li a:hover,
        .site-footer ul li a:focus {
            color: #fff;
        }

        .footer-contact p {
            font-size: 14px;
            margin-bottom: 8px;
            color: rgba(199, 214, 232, 0.76);
        }

        .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(199, 214, 232, 0.6);
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar .navbar-collapse {
                padding: 14px 0 6px;
            }

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

            .navbar .nav-link {
                padding: 12px 10px;
                font-size: 16px;
            }

            .btn-header {
                margin-left: 0;
                margin-top: 14px;
                width: 100%;
            }

            .intro-media img {
                height: 320px;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-banner {
                padding: 52px 0 48px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

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

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

            .intro-content h2 {
                font-size: 26px;
            }

            .intro-media img {
                height: 220px;
            }

            .feature-col {
                padding: 26px 20px;
            }

            .resource-card {
                padding: 24px 20px;
            }

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

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-cta-primary,
            .btn-cta-secondary {
                justify-content: center;
            }

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

        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 19px;
            }

            .brand-mark {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .site-header .navbar {
                min-height: 64px;
                padding: 10px 0;
            }

            .page-banner h1 {
                font-size: 27px;
            }

            .section-tag {
                font-size: 12px;
                padding: 5px 12px;
            }

            .accordion-header .accordion-button {
                font-size: 14px;
                padding: 18px 16px;
            }

            .accordion-body {
                font-size: 14px;
            }
        }