/* roulang page: index */
:root {
            --primary: #5EB8D8;
            --primary-dark: #0B3B52;
            --accent: #FF7A45;
            --accent-light: #FF9B73;
            --ice-white: #EAF5F9;
            --ink: #0B1E2A;
            --text: #2C3E4C;
            --text-secondary: #5A6B76;
            --border: #D8E3E9;
            --card-white: #FFFFFF;
            --deep-cyan: #0E4B64;
            --light-orange: #FFF0E8;
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-badge: 6px;
            --radius-img: 12px;
            --shadow: 0 4px 16px rgba(11,59,82,0.08);
            --shadow-hover: 0 8px 24px rgba(11,59,82,0.12);
            --shadow-dark: 0 4px 16px rgba(0,0,0,0.18);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 112px;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--ice-white);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-family);
            color: var(--ink);
            line-height: 1.3;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--card-white);
            box-shadow: 0 1px 4px rgba(11, 59, 82, 0.04);
        }

        .header-brand-row {
            height: 64px;
            background: var(--card-white);
            border-bottom: 1px solid var(--border);
        }

        .header-brand-row .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-text .logo-mg {
            color: var(--accent);
        }

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

        .header-search {
            position: relative;
            width: 220px;
        }

        .header-search .form-control {
            height: 36px;
            border-radius: 50px;
            border: 1px solid var(--border);
            padding-left: 14px;
            padding-right: 36px;
            font-size: 13px;
            background: var(--ice-white);
            color: var(--text);
            box-shadow: none;
        }

        .header-search .form-control:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(94, 184, 216, 0.2);
        }

        .header-search .search-icon {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 13px;
            pointer-events: none;
        }

        .btn-header-consult {
            height: 36px;
            padding: 0 20px;
            border-radius: 50px;
            background: var(--ice-white);
            border: 1px solid var(--primary);
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header-consult:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-header-consult:active {
            transform: translateY(0);
        }

        .btn-header-consult:focus-visible,
        .header-search .form-control:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .header-channel-row {
            height: 48px;
            background: rgba(234, 245, 249, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-channel-row .container {
            height: 100%;
            display: flex;
            align-items: center;
            gap: 0;
            padding-left: 24px;
            padding-right: 24px;
            max-width: 1200px;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .channel-nav .nav-item-wrapper {
            height: 100%;
            display: flex;
            align-items: center;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            height: 100%;
            padding: 0 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            position: relative;
            white-space: nowrap;
            transition: color 0.3s;
        }

        .channel-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .channel-link:hover::after {
            width: 40%;
        }

        .channel-link.active::after {
            width: 100%;
        }

        .channel-link:hover,
        .channel-link.active {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .nav-divider {
            width: 1px;
            height: 20px;
            background: var(--border);
            margin: 0 12px;
            flex-shrink: 0;
        }

        .nav-category-link {
            display: inline-flex;
            align-items: center;
            padding: 0 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            height: 100%;
            white-space: nowrap;
            position: relative;
        }

        .nav-category-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }

        .nav-category-link:hover::after {
            width: 100%;
        }

        .nav-category-link:hover {
            color: var(--accent);
        }

        .nav-category-link .fa-angle-right {
            font-size: 10px;
            margin-left: 4px;
            opacity: 0.8;
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            border-radius: 8px;
            color: var(--ink);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .mobile-toggle:hover {
            background: var(--ice-white);
        }

        .mobile-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--card-white);
            box-shadow: 0 8px 24px rgba(11, 59, 82, 0.15);
            padding: 12px;
            z-index: 1049;
            border-bottom: 1px solid var(--border);
            max-height: calc(100vh - 64px);
            overflow-y: auto;
        }

        .mobile-nav .mobile-nav-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: 8px;
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
        }

        .mobile-nav .mobile-nav-link:hover {
            background: var(--ice-white);
            color: var(--primary-dark);
        }

        .mobile-nav .mobile-nav-link.active {
            background: var(--ice-white);
            color: var(--primary-dark);
            font-weight: 700;
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0A2C3F 55%, #08212E 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0 60px;
            position: relative;
            min-height: 700px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(11, 59, 82, 0.92) 0%, rgba(10, 44, 63, 0.78) 100%);
            pointer-events: none;
        }

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

        .hero-content {
            padding: 20px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(94, 184, 216, 0.15);
            border: 1px solid rgba(94, 184, 216, 0.3);
            color: var(--primary);
            border-radius: 50px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
        }

        .hero-badge .fa-circle {
            font-size: 6px;
            color: var(--accent);
        }

        .hero-title {
            font-size: 52px;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
        }

        .hero-title .text-accent {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 480px;
            margin-bottom: 32px;
        }

        .btn-hero {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.35);
        }

        .btn-hero:hover {
            background: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 69, 0.4);
        }

        .btn-hero:active {
            transform: translateY(0);
        }

        .btn-hero:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        .hero-meta {
            margin-top: 24px;
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .hero-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }

        .hero-meta .meta-item .fa-circle-check {
            color: var(--primary);
        }

        .hero-image-col {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-image-wrapper {
            position: relative;
            max-width: 500px;
            width: 100%;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .hero-image-wrapper::before {
            content: "";
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(135deg, rgba(94, 184, 216, 0.3), rgba(255, 122, 69, 0.2));
            border-radius: 22px;
            z-index: 0;
        }

        .hero-image-wrapper img {
            position: relative;
            z-index: 1;
            width: 100%;
            height: auto;
            display: block;
            border-radius: 20px;
        }

        .hero-image-caption {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(11, 30, 42, 0.85);
            backdrop-filter: blur(6px);
            border-radius: 10px;
            padding: 12px 16px;
            color: #fff;
            font-size: 13px;
            z-index: 2;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-scroll-down {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, 0.6);
            font-size: 20px;
            animation: scrollDown 2s ease-in-out infinite;
            z-index: 2;
            transition: color 0.3s;
        }

        .hero-scroll-down:hover {
            color: #fff;
        }

        @keyframes scrollDown {
            0% {
                transform: translate(-50%, 0);
                opacity: 0.6;
            }
            50% {
                transform: translate(-50%, 8px);
                opacity: 1;
            }
            100% {
                transform: translate(-50%, 0);
                opacity: 0.6;
            }
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 100px 0;
        }

        .section-title-lg {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }

        .section-heading-center {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-heading-center .section-subtitle {
            margin: 0 auto;
        }

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

        .feature-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid rgba(216, 227, 233, 0.6);
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
        }

        .feature-card.card-blue::before {
            background: var(--primary);
        }

        .feature-card.card-orange::before {
            background: var(--accent);
        }

        .feature-card.card-cyan::before {
            background: var(--deep-cyan);
        }

        .feature-card.card-light-orange::before {
            background: #FFB98A;
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            border: 1.5px solid;
        }

        .card-blue .feature-icon {
            background: rgba(94, 184, 216, 0.1);
            color: var(--primary);
            border-color: rgba(94, 184, 216, 0.4);
        }

        .card-orange .feature-icon {
            background: rgba(255, 122, 69, 0.1);
            color: var(--accent);
            border-color: rgba(255, 122, 69, 0.4);
        }

        .card-cyan .feature-icon {
            background: rgba(14, 75, 100, 0.08);
            color: var(--deep-cyan);
            border-color: rgba(14, 75, 100, 0.3);
        }

        .card-light-orange .feature-icon {
            background: rgba(255, 185, 138, 0.15);
            color: #E07A3D;
            border-color: rgba(255, 185, 138, 0.5);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            transition: var(--transition);
        }

        .feature-link:hover {
            gap: 8px;
            color: var(--accent);
        }

        .feature-link .fa-arrow-right {
            font-size: 12px;
        }

        /* ===== Demo ===== */
        .demo-section {
            background: var(--card-white);
        }

        .demo-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }

        .demo-content .section-title-lg {
            margin-bottom: 16px;
        }

        .demo-intro {
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 460px;
        }

        .demo-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .demo-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .demo-step-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            min-width: 48px;
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
        }

        .demo-step h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .demo-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .demo-image-block {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            height: 380px;
            box-shadow: var(--shadow);
        }

        .demo-image-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .demo-image-caption {
            position: absolute;
            bottom: 12px;
            left: 12px;
            right: 12px;
            background: rgba(11, 30, 42, 0.85);
            backdrop-filter: blur(6px);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 13px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .demo-image-caption .fa-circle-info {
            color: var(--primary);
        }

        .demo-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 14px;
            margin-top: 12px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
        }

        .demo-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }

        /* ===== Evidence ===== */
        .evidence-section {
            background: var(--primary-dark);
            color: #fff;
        }

        .evidence-section .section-title-lg {
            color: #fff;
        }

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

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 64px;
            text-align: center;
        }

        .stat-number {
            font-size: 60px;
            font-weight: 800;
            line-height: 1;
            color: #fff;
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
            display: block;
            margin-bottom: 8px;
        }

        .stat-number .suffix {
            font-size: 36px;
            color: var(--accent);
            margin-left: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        .evidence-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .evidence-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            box-shadow: var(--shadow-dark);
        }

        .evidence-card::before {
            content: "\201C";
            font-size: 48px;
            color: var(--primary);
            font-family: Georgia, serif;
            line-height: 1;
            display: block;
            margin-bottom: 12px;
        }

        .evidence-card blockquote {
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 16px;
            border-left: none;
            padding: 0;
        }

        .evidence-card .evidence-author {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-secondary);
        }

        .evidence-card .evidence-author .fa-user-circle {
            color: var(--primary);
            font-size: 24px;
        }

        /* ===== Pricing ===== */
        .pricing-section {
            background: var(--ice-white);
        }

        .pricing-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            height: 100%;
            position: relative;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .pricing-card.featured {
            border: 2px solid var(--accent);
            box-shadow: 0 8px 24px rgba(255, 122, 69, 0.15);
        }

        .pricing-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--text-secondary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 20px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .pricing-card.featured .pricing-tag {
            background: var(--accent);
        }

        .pricing-name {
            font-size: 24px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 14px;
            margin-top: 8px;
        }

        .pricing-price {
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
            font-size: 42px;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1;
            margin-bottom: 24px;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .pricing-price .currency {
            font-size: 20px;
            font-weight: 700;
        }

        .pricing-price .period {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-secondary);
            font-family: var(--font-family);
        }

        .pricing-card.featured .pricing-price {
            color: var(--accent);
        }

        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
            flex-grow: 1;
        }

        .pricing-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text);
        }

        .pricing-features li .fa-circle-check {
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }

        .pricing-features li .fa-circle-minus {
            color: var(--text-secondary);
            font-size: 14px;
            flex-shrink: 0;
        }

        .btn-pricing {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px 24px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-pricing-primary {
            background: var(--accent);
            color: #fff;
            border: 2px solid var(--accent);
        }

        .btn-pricing-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 122, 69, 0.3);
        }

        .btn-pricing-secondary {
            background: transparent;
            color: var(--primary-dark);
            border: 2px solid var(--primary-dark);
        }

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

        .btn-pricing:active {
            transform: translateY(0);
        }

        .btn-pricing:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .faq-left-col {
            position: sticky;
            top: 130px;
            align-self: start;
        }

        .faq-left-col .section-title-lg {
            margin-bottom: 16px;
        }

        .faq-left-col .faq-desc {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .faq-contact-card {
            background: var(--ice-white);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border);
            margin-top: 24px;
        }

        .faq-contact-card h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .faq-contact-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .faq-contact-card .btn-contact {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-dark);
            color: #fff;
            border-radius: 50px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .faq-contact-card .btn-contact:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-1px);
        }

        .accordion-custom {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 12px !important;
            overflow: hidden;
            background: var(--card-white);
            box-shadow: none;
        }

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

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

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

        .accordion-custom .accordion-button::after {
            background-image: none;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            font-size: 14px;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--ice-white);
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: "\f068";
            color: var(--accent);
            transform: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(94, 184, 216, 0.25);
            border: none;
        }

        .accordion-custom .accordion-body {
            padding: 0 20px 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            max-width: 660px;
        }

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

        .news-section .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
        }

        .news-section .section-title-lg {
            margin-bottom: 0;
        }

        .view-all-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            padding-bottom: 4px;
            border-bottom: 2px solid transparent;
        }

        .view-all-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }

        .news-card {
            display: flex;
            gap: 16px;
            background: var(--card-white);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .news-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.3s;
            border-radius: 0 3px 3px 0;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

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

        .news-date {
            width: 60px;
            height: 70px;
            border-radius: 12px;
            background: var(--primary-dark);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .news-date .date-day {
            font-size: 22px;
            font-weight: 800;
            line-height: 1.2;
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
        }

        .news-date .date-month {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.4;
        }

        .news-content {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .news-category {
            display: inline-flex;
            align-items: center;
            background: rgba(94, 184, 216, 0.15);
            color: var(--primary-dark);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 8px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }

        .news-content h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: var(--primary-dark);
            font-weight: 600;
        }

        .news-link:hover .fa-arrow-right {
            transform: translateX(4px);
        }

        .news-link:hover {
            color: var(--accent);
        }

        .news-empty {
            border: 2px dashed var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            background: rgba(255, 255, 255, 0.6);
        }

        .news-empty .fa-newspaper {
            font-size: 36px;
            color: var(--border);
            margin-bottom: 12px;
        }

        .news-empty p {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 0;
        }

        /* ===== CTA Banner ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0A2C3F 55%, var(--ink) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(94, 184, 216, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255, 122, 69, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

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

        .cta-title {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 480px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.3);
        }

        .btn-cta:hover {
            background: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 69, 0.4);
        }

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

        .btn-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink);
            padding-top: 64px;
            padding-bottom: 0;
        }

        .footer-widgets {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
        }

        .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .footer-logo .logo-text .logo-mg {
            color: var(--accent);
        }

        .footer-about p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 260px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            line-height: 1.6;
        }

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

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

        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .footer-contact-list li i {
            color: var(--primary);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }

        .footer-icp {
            display: block;
            margin-top: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-copyright {
            padding: 24px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

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

        /* ===== Floating CTA ===== */
        .floating-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 2000;
        }

        .floating-cta .btn-floating {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 160px;
            height: 52px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.35);
            transition: var(--transition);
        }

        .floating-cta .btn-floating:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(255, 122, 69, 0.45);
        }

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

        .floating-cta .btn-floating:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrapper {
            background: var(--ice-white);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb-wrapper .breadcrumb {
            margin-bottom: 0;
            font-size: 13px;
        }

        .breadcrumb-wrapper .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb-wrapper .breadcrumb-item.active {
            color: var(--ink);
        }

        .breadcrumb-wrapper .breadcrumb-item + .breadcrumb-item::before {
            color: var(--border);
        }

        /* ===== Article ===== */
        .article-page-main {
            background: var(--card-white);
            padding: 40px 0 80px;
        }

        .article-container {
            max-width: 720px;
            margin: 0 auto;
        }

        .article-header {
            margin-bottom: 32px;
        }

        .article-header h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--ink);
        }

        .article-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-secondary);
            font-size: 14px;
        }

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

        .article-meta .separator {
            color: var(--border);
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
            color: var(--ink);
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--ink);
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--ice-white);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            font-style: normal;
            color: var(--text);
        }

        .article-body ul {
            padding-left: 20px;
            margin-bottom: 24px;
        }

        .article-body ul li {
            margin-bottom: 8px;
        }

        .article-body img {
            border-radius: 12px;
            margin: 24px 0;
        }

        .article-body .img-caption {
            font-size: 13px;
            color: var(--text-secondary);
            text-align: center;
            margin-top: -16px;
            margin-bottom: 24px;
        }

        .article-body .code-block {
            background: var(--ice-white);
            border-radius: 8px;
            padding: 20px;
            font-family: "SFMono-Regular", Consolas, monospace;
            font-size: 13px;
            color: var(--ink);
            margin: 24px 0;
            overflow-x: auto;
            border: 1px solid var(--border);
        }

        .article-body .highlight-block {
            background: var(--ice-white);
            border-left: 4px solid var(--accent);
            border-radius: 0 8px 8px 0;
            padding: 16px 20px;
            margin: 24px 0;
        }

        .article-tags {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-tags .tag {
            display: inline-block;
            background: var(--ice-white);
            color: var(--primary-dark);
            border-radius: 6px;
            padding: 4px 12px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .article-cta-banner {
            background: linear-gradient(90deg, var(--primary-dark) 0%, var(--deep-cyan) 100%);
            border-radius: 16px;
            padding: 32px 36px;
            margin-top: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            color: #fff;
        }

        .article-cta-banner h3 {
            color: #fff;
            font-size: 20px;
            margin-bottom: 4px;
        }

        .article-cta-banner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            margin: 0;
        }

        .article-cta-banner .btn-article-cta {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(255, 122, 69, 0.3);
        }

        .article-cta-banner .btn-article-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 122, 69, 0.4);
        }

        .related-section {
            background: var(--ice-white);
            padding: 80px 0;
        }

        .related-section .section-title-lg {
            margin-bottom: 48px;
        }

        .related-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: block;
            color: var(--text);
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            color: var(--text);
        }

        .related-card .related-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

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

        .related-card .related-body {
            padding: 20px;
        }

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card .related-date {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid var(--primary-dark);
            color: var(--primary-dark);
            background: transparent;
            border-radius: 50px;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

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

        .btn-back:active {
            transform: translateY(0);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0A2C3F 60%, var(--ink) 100%);
            padding: 72px 0 56px;
            position: relative;
            overflow: hidden;
        }

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

        .category-hero .category-hero-title {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .category-hero .category-hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 480px;
            line-height: 1.7;
        }

        .category-hero-img {
            border-radius: 16px;
            overflow: hidden;
            max-height: 260px;
            box-shadow: var(--shadow-dark);
        }

        .category-hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .category-section {
            padding: 80px 0;
            background: var(--card-white);
        }

        .category-section.alternate {
            background: var(--ice-white);
        }

        .category-section .section-title-lg {
            margin-bottom: 16px;
        }

        .category-section .section-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .category-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin: 24px 0;
        }

        .category-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: var(--ice-white);
            border-radius: 12px;
            padding: 16px 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .category-list-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .category-list-item .fa-circle-check {
            color: var(--primary);
            margin-top: 3px;
            font-size: 16px;
            flex-shrink: 0;
        }

        .category-list-item span {
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }

        .category-img-block {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            min-height: 280px;
            position: relative;
        }

        .category-img-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .category-cta-wrap {
            text-align: center;
            padding: 24px 0 0;
        }

        .category-cta-wrap .btn-hero {
            display: inline-flex;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .channel-link {
                padding: 0 12px;
                font-size: 13px;
            }

            .nav-category-link {
                padding: 0 10px;
                font-size: 13px;
            }

            .hero-title {
                font-size: 44px;
            }
        }

        @media (max-width: 991.98px) {
            .site-header {
                position: sticky;
                top: 0;
            }

            .header-brand-row {
                height: 64px;
            }

            .header-channel-row {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .mobile-nav {
                display: block;
                top: 64px;
            }

            .header-search {
                display: none;
            }

            .hero-section {
                padding: 60px 0 40px;
                min-height: auto;
            }

            .hero-title {
                font-size: 34px;
            }

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

            .hero-image-col {
                margin-top: 40px;
            }

            .hero-scroll-down {
                display: none;
            }

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

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

            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .stat-number {
                font-size: 48px;
            }

            .stat-number .suffix {
                font-size: 30px;
            }

            .evidence-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .faq-left-col {
                position: relative;
                top: auto;
                margin-bottom: 40px;
            }

            .footer-widgets .col-lg-3 {
                margin-bottom: 32px;
            }

            .section-heading-center {
                margin-bottom: 40px;
            }
        }

        @media (max-width: 767.98px) {
            .hero-title {
                font-size: 30px;
            }

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

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

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .feature-card {
                padding: 24px;
            }

            .pricing-card {
                padding: 28px 20px;
            }

            .stat-grid {
                gap: 24px;
            }

            .stat-number {
                font-size: 40px;
            }

            .stat-label {
                font-size: 13px;
            }

            .news-section .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                margin-bottom: 32px;
            }

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

            .news-date {
                width: 56px;
                height: 64px;
            }

            .category-hero-title {
                font-size: 28px;
            }

            .category-list {
                grid-template-columns: 1fr;
            }

            .floating-cta {
                right: 0;
                bottom: 0;
                left: 0;
                width: 100%;
                padding: 8px 16px;
                background: rgba(255, 255, 255, 0.95);
                backdrop-filter: blur(8px);
                box-shadow: 0 -4px 16px rgba(11, 59, 82, 0.1);
            }

            .floating-cta .btn-floating {
                width: 100%;
                height: 48px;
            }

            body {
                padding-bottom: 64px;
            }

            .footer-copyright {
                padding: 16px 0;
            }

            .footer-widgets .col-lg-3 {
                margin-bottom: 28px;
            }

            .footer-widgets .col-lg-3:last-child {
                margin-bottom: 0;
            }

            .article-header h1 {
                font-size: 26px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }

            .article-cta-banner .btn-article-cta {
                width: 100%;
                justify-content: center;
            }

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

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

            .category-hero {
                padding: 48px 0 40px;
            }

            .category-hero-img {
                margin-top: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 27px;
            }

            .btn-hero {
                width: 100%;
                padding: 14px 20px;
            }

            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .stat-number {
                font-size: 32px;
            }

            .evidence-cards {
                grid-template-columns: 1fr;
            }

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

            .pricing-price {
                font-size: 36px;
            }

            .news-card {
                padding: 16px;
            }

            .footer-title::after {
                width: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #5EB8D8;
            --primary-dark: #0B3B52;
            --accent: #FF7A45;
            --ice: #EAF5F9;
            --ink: #0B1E2A;
            --text: #2C3E4C;
            --text-secondary: #5A6B76;
            --border: #D8E3E9;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 50px;
            --shadow: 0 4px 16px rgba(11, 59, 82, 0.08);
            --shadow-hover: 0 8px 24px rgba(11, 59, 82, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--white);
            color: var(--text);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: var(--primary-dark);
            transition: color .2s ease;
        }

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

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

        .site-header {
            position: relative;
            z-index: 1030;
        }

        .header-brand-row {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            height: 64px;
        }

        .header-brand-row .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary-dark);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 18px;
            box-shadow: var(--shadow);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-mg {
            color: var(--accent);
        }

        .login-meta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            position: relative;
            width: 260px;
        }

        .header-search .form-control {
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 36px 8px 18px;
            font-size: 14px;
            background: var(--ice);
            color: var(--text);
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(94, 184, 216, .15);
            outline: none;
            background: var(--white);
        }

        .search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 14px;
            pointer-events: none;
        }

        .btn-header-consult {
            background: var(--ice);
            color: var(--primary-dark);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 22px;
            font-size: 14px;
            font-weight: 600;
            transition: background .2s, box-shadow .2s, transform .2s;
            white-space: nowrap;
        }

        .btn-header-consult:hover {
            background: var(--primary);
            color: var(--white);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }

        .btn-header-consult:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--white);
            color: var(--primary-dark);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }

        .mobile-toggle:hover {
            background: var(--ice);
        }

        .header-channel-row {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(234, 245, 249, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(11, 59, 82, 0.04);
        }

        .channel-nav {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            height: 48px;
            gap: 0;
        }

        .nav-item-wrapper {
            margin: 0;
        }

        .channel-link,
        .nav-category-link {
            display: inline-block;
            position: relative;
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            border-bottom: 2px solid transparent;
            transition: color .2s;
        }

        .channel-link::after,
        .nav-category-link::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width .25s ease, left .25s ease;
        }

        .channel-link:hover,
        .nav-category-link:hover {
            color: var(--primary-dark);
        }

        .channel-link:hover::after,
        .nav-category-link:hover::after {
            width: 40%;
            left: 30%;
        }

        .channel-link.active,
        .nav-category-link.active {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .channel-link.active::after,
        .nav-category-link.active::after {
            width: 100%;
            left: 0;
        }

        .nav-divider {
            width: 1px;
            height: 22px;
            background: var(--border);
            margin: 0 6px;
            flex-shrink: 0;
        }

        /* 文章页 */
        .article-page-main {
            background: var(--white);
        }

        .breadcrumb-area {
            background: var(--ice);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            margin: 0;
            font-size: 13px;
            background: transparent;
        }

        .breadcrumb a {
            color: var(--primary-dark);
            font-weight: 500;
        }

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

        .breadcrumb-item+.breadcrumb-item::before {
            color: var(--border);
            content: "›";
        }

        .breadcrumb-item.active {
            color: var(--text-secondary);
            max-width: 420px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-head {
            padding: 56px 0 28px;
            background: var(--ice);
            border-bottom: 1px solid var(--border);
        }

        .article-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--ink);
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--text-secondary);
        }

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

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

        .article-meta .category-badge {
            background: rgba(94, 184, 216, .15);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 6px;
        }

        .article-body-wrap {
            padding: 48px 0 32px;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            word-break: break-word;
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--ice);
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            margin: 32px 0 12px;
        }

        .article-body a {
            color: var(--primary-dark);
            font-weight: 500;
            border-bottom: 1px solid var(--primary);
        }

        .article-body a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }

        .article-body blockquote {
            background: var(--ice);
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            padding: 18px 24px;
            margin: 24px 0;
            color: var(--primary-dark);
            font-size: 16px;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body img {
            border-radius: 12px;
            max-width: 100%;
            height: auto;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body code {
            background: var(--ice);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 14px;
            color: var(--accent);
        }

        .article-body pre {
            background: var(--ice);
            border-radius: 12px;
            padding: 20px;
            margin: 24px 0;
            overflow-x: auto;
            border: 1px solid var(--border);
        }

        .article-body pre code {
            background: transparent;
            color: var(--text);
            padding: 0;
        }

        .article-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
            background: var(--ice);
            border: 2px dashed var(--border);
            border-radius: var(--radius-card);
        }

        .article-empty p {
            font-size: 18px;
            margin-bottom: 20px;
        }

        .btn-rounded {
            border-radius: 50px;
            padding: 10px 32px;
            font-weight: 600;
        }

        .btn-outline-primary {
            border: 2px solid var(--primary-dark);
            color: var(--primary-dark);
            background: transparent;
        }

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

        .btn-outline-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .article-tags-section {
            padding: 16px 0 40px;
            border-bottom: 1px solid var(--border);
        }

        .article-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .article-tag {
            background: var(--ice);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 16px;
            border-radius: 50px;
            transition: background .2s, color .2s;
        }

        .article-tag:hover {
            background: var(--primary);
            color: var(--white);
        }

        .related-section {
            padding: 56px 0;
            background: var(--white);
        }

        .related-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            text-align: center;
            margin-bottom: 36px;
        }

        .related-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow);
            transition: transform .25s ease, box-shadow .25s ease;
            display: block;
            height: 100%;
        }

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

        .related-card-img {
            height: 160px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .related-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 30, 42, .18), transparent 70%);
        }

        .related-card-body {
            padding: 18px 20px;
        }

        .related-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }

        .related-card-body .related-date {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .article-bottom-cta {
            padding: 56px 0;
            background: var(--ice);
        }

        .cta-banner {
            background: linear-gradient(120deg, var(--primary-dark) 0%, #0E4C66 60%, #166B88 100%);
            border-radius: 24px;
            padding: 48px 40px;
            color: var(--white);
            position: relative;
            overflow: hidden;
            text-align: center;
            box-shadow: 0 8px 30px rgba(11, 59, 82, .2);
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(94, 184, 216, .25) 0%, transparent 70%);
        }

        .cta-banner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 16px;
            opacity: .85;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white);
            border: none;
            border-radius: 50px;
            padding: 12px 36px;
            font-size: 16px;
            font-weight: 600;
            transition: background .2s, transform .2s, box-shadow .2s;
            position: relative;
            z-index: 1;
        }

        .btn-accent:hover {
            background: #ff8c5f;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 69, .35);
        }

        .btn-accent:focus-visible {
            outline: 2px solid var(--white);
            outline-offset: 3px;
        }

        .back-to-list {
            text-align: center;
            padding: 16px 0 64px;
            background: var(--white);
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, .8);
            padding-top: 64px;
        }

        .footer-widgets {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            background: var(--primary);
            color: var(--ink);
        }

        .footer-logo .logo-text {
            color: var(--white);
            font-size: 20px;
        }

        .footer-logo .logo-mg {
            color: var(--accent);
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 260px;
        }

        .footer-about p {
            margin-bottom: 20px;
        }

        .footer-title {
            color: var(--white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

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

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 10px;
        }

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

        .footer-icp {
            display: inline-block;
            margin-top: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 6px;
            padding: 4px 14px;
        }

        .footer-copyright {
            padding: 24px 0;
            text-align: center;
        }

        .footer-copyright p {
            margin: 0;
            font-size: 14px;
            color: rgba(255, 255, 255, .35);
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            .channel-link,
            .nav-category-link {
                padding: 12px 12px;
                font-size: 14px;
            }

            .header-search {
                width: 220px;
            }
        }

        @media (max-width: 991px) {
            .header-brand-row {
                height: auto;
                padding: 8px 0;
            }

            .header-brand-row .container {
                height: auto;
                flex-wrap: wrap;
                gap: 8px;
            }

            .header-search {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .header-channel-row {
                display: none;
                position: relative;
                top: auto;
                background: var(--white);
                border-top: 1px solid var(--border);
            }

            .header-channel-row.open {
                display: block;
            }

            .channel-nav {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 4px;
            }

            .channel-link,
            .nav-category-link {
                padding: 8px 14px;
                font-size: 15px;
            }

            .nav-divider {
                display: none;
            }

            .article-head {
                padding: 36px 0 20px;
            }

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

            .related-card {
                margin-bottom: 20px;
            }
        }

        @media (max-width: 767px) {
            .logo-text {
                font-size: 17px;
            }

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

            .btn-header-consult {
                padding: 7px 14px;
                font-size: 13px;
            }

            .breadcrumb-item.active {
                max-width: 200px;
            }

            .article-head {
                padding: 28px 0 16px;
            }

            .article-title {
                font-size: 24px;
                line-height: 1.35;
            }

            .article-meta {
                font-size: 13px;
                gap: 8px;
            }

            .article-body-wrap {
                padding: 32px 0 20px;
            }

            .article-body p {
                font-size: 15px;
            }

            .cta-banner {
                padding: 36px 20px;
                border-radius: 18px;
            }

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

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

            .footer-widgets {
                padding-bottom: 24px;
            }

            .site-footer {
                padding-top: 40px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-channel-row.open .channel-nav {
                gap: 2px;
            }

            .channel-link,
            .nav-category-link {
                padding: 8px 10px;
                font-size: 14px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-meta {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }

            .related-card-img {
                height: 140px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #5EB8D8;
            --primary-dark: #0B3B52;
            --accent: #FF7A45;
            --accent-hover: #FF9268;
            --ice-white: #EAF5F9;
            --ink: #0B1E2A;
            --text: #2C3E4C;
            --text-secondary: #5A6B76;
            --border: #D8E3E9;
            --white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-badge: 6px;
            --radius-img: 14px;
            --shadow: 0 4px 16px rgba(11, 59, 82, 0.08);
            --shadow-hover: 0 8px 24px rgba(11, 59, 82, 0.12);
            --section-padding: 90px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: color .2s ease;
        }

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

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--white);
            box-shadow: 0 2px 10px rgba(11, 59, 82, 0.04);
        }

        .header-brand-row {
            height: 64px;
            border-bottom: 1px solid var(--border);
            background: var(--white);
            display: flex;
            align-items: center;
        }

        .header-brand-row .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-dark), #0E4D6E);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            box-shadow: var(--shadow);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .logo-mg {
            color: var(--accent);
            font-weight: 800;
        }

        .login-meta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            position: relative;
            width: 220px;
        }

        .header-search .form-control {
            height: 38px;
            border-radius: 50px;
            border: 1px solid var(--border);
            background: var(--ice-white);
            padding: 0 36px 0 16px;
            font-size: 13px;
            color: var(--text);
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(94, 184, 216, 0.15);
            background: var(--white);
        }

        .header-search .search-icon {
            position: absolute;
            right: 13px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 13px;
            pointer-events: none;
        }

        .btn-header-consult {
            height: 38px;
            padding: 0 20px;
            border-radius: 50px;
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .25s ease;
        }

        .btn-header-consult:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--white);
            transform: translateY(-1px);
        }

        .btn-header-consult:active {
            transform: translateY(0);
        }

        .mobile-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--ice-white);
            color: var(--primary-dark);
            font-size: 16px;
            align-items: center;
            justify-content: center;
            transition: background .2s;
        }

        .mobile-toggle:hover {
            background: var(--primary);
            color: var(--white);
        }

        .header-channel-row {
            height: 48px;
            background: rgba(234, 245, 249, 0.85);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s;
        }

        .header-channel-row.scrolled {
            box-shadow: 0 4px 12px rgba(11, 59, 82, 0.08);
        }

        .header-channel-row .container {
            height: 100%;
        }

        .channel-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            height: 100%;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-item-wrapper {
            height: 100%;
            display: flex;
            align-items: center;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            height: 100%;
            padding: 0 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            position: relative;
            transition: color .2s;
            white-space: nowrap;
        }

        .channel-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transition: width .3s ease;
        }

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

        .channel-link:hover::after {
            width: 40%;
        }

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

        .channel-link.active::after {
            width: 100%;
        }

        .nav-divider {
            width: 1px;
            height: 22px;
            background: var(--border);
            margin: 0 8px;
        }

        .nav-category-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            height: 100%;
            padding: 0 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            position: relative;
            transition: color .2s;
            white-space: nowrap;
        }

        .nav-category-link i {
            font-size: 11px;
            transition: transform .2s;
        }

        .nav-category-link:hover {
            color: var(--accent);
        }

        .nav-category-link:hover i {
            transform: translateX(3px);
        }

        .nav-category-link.active {
            color: var(--accent);
        }

        .nav-category-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* ---------- Category Hero ---------- */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0E4D6E 55%, #14708F 100%);
            padding: 80px 0 70px;
            overflow: hidden;
            isolation: isolate;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.16;
            z-index: -2;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 59, 82, 0.45) 0%, transparent 50%, rgba(11, 59, 82, 0.3) 100%);
            z-index: -1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 40px;
            padding: 5px 16px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--primary);
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            color: var(--white);
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .category-hero .lead {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin-bottom: 30px;
        }

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

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--white);
            border-radius: 50px;
            padding: 12px 32px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 14px rgba(255, 122, 69, 0.35);
            transition: all .25s ease;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 122, 69, 0.4);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 122, 69, 0.3);
        }

        .btn-accent:focus-visible,
        .btn-outline:focus-visible,
        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: 50px;
            padding: 10px 28px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-1px);
        }

        .hero-img-wrap {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        }

        .hero-img-wrap img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        .hero-img-caption {
            position: absolute;
            bottom: 14px;
            left: 14px;
            right: 14px;
            background: rgba(11, 30, 42, 0.75);
            backdrop-filter: blur(6px);
            border-radius: 12px;
            padding: 12px 16px;
            color: var(--white);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-img-caption i {
            color: var(--primary);
        }

        /* ---------- Section 通用 ---------- */
        .section-padding {
            padding: var(--section-padding) 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 0;
        }

        /* ---------- 介绍区块 ---------- */
        .intro-section {
            background: var(--white);
            padding: 90px 0;
        }

        .intro-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
            transition: all .3s ease;
        }

        .intro-card:nth-child(2) {
            border-top-color: var(--accent);
        }

        .intro-card:nth-child(3) {
            border-top-color: #158F8F;
        }

        .intro-card:nth-child(4) {
            border-top-color: #FFB347;
        }

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

        .intro-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: var(--ice-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary-dark);
            margin-bottom: 18px;
            transition: all .3s;
        }

        .intro-card:hover .intro-icon {
            background: var(--primary-dark);
            color: var(--primary);
            transform: scale(1.05);
        }

        .intro-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 10px;
        }

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

        .intro-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-top: 14px;
            transition: color .2s;
        }

        .intro-link i {
            transition: transform .2s;
        }

        .intro-link:hover {
            color: var(--accent);
        }

        .intro-link:hover i {
            transform: translateX(3px);
        }

        /* ---------- 演示区块 ---------- */
        .demo-section {
            background: var(--ice-white);
            padding: 90px 0;
        }

        .demo-step {
            display: flex;
            gap: 20px;
            margin-bottom: 28px;
            padding: 22px 24px;
            background: var(--white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow);
            border-left: 4px solid var(--accent);
            transition: all .3s;
        }

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

        .demo-num {
            font-size: 40px;
            font-weight: 800;
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
            color: var(--accent);
            line-height: 1;
            min-width: 56px;
            text-align: center;
            padding-top: 4px;
        }

        .demo-step h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .demo-step p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .demo-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow);
            height: 400px;
        }

        .demo-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .demo-img-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(11, 30, 42, 0.8);
            backdrop-filter: blur(5px);
            color: var(--white);
            border-radius: 12px;
            padding: 10px 18px;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ---------- 数据证明 ---------- */
        .evidence-section {
            background: var(--primary-dark);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .evidence-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(94, 184, 216, 0.08);
        }

        .evidence-section .section-tag {
            color: var(--primary);
        }

        .evidence-section .section-title {
            color: var(--white);
        }

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

        .data-grid {
            margin-top: 50px;
        }

        .data-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            transition: all .3s;
        }

        .data-item:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-3px);
        }

        .data-num {
            font-size: 56px;
            font-weight: 800;
            font-family: "Bahnschrift", "DIN Alternate", sans-serif;
            color: var(--white);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .data-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .quote-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            position: relative;
            height: 100%;
            transition: all .3s;
        }

        .quote-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .quote-card::before {
            content: '\201C';
            font-size: 60px;
            font-family: Georgia, serif;
            color: var(--primary);
            position: absolute;
            top: 10px;
            left: 22px;
            line-height: 1;
            opacity: 0.4;
        }

        .quote-card p {
            font-size: 14px;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 14px;
            padding-top: 24px;
        }

        .quote-author {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .quote-author i {
            color: var(--primary);
            font-size: 12px;
        }

        /* ---------- CTA 区块 ---------- */
        .cta-section {
            padding: 0;
        }

        .cta-banner {
            background: linear-gradient(120deg, var(--primary-dark), #0E4D6E, var(--primary-dark));
            border-radius: 24px;
            padding: 60px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 0 90px;
            box-shadow: 0 20px 50px rgba(11, 59, 82, 0.2);
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 122, 69, 0.1);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(94, 184, 216, 0.08);
        }

        .cta-banner h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }

        .cta-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .cta-banner .btn-accent {
            position: relative;
            z-index: 2;
            padding: 14px 44px;
            font-size: 16px;
        }

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

        .footer-widgets {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            background: rgba(255, 255, 255, 0.1);
        }

        .footer-logo .logo-text {
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
        }

        .footer-about p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

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

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

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

        .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: all .2s;
        }

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

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

        .footer-contact-list li {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .footer-contact-list i {
            color: var(--primary);
            margin-top: 3px;
            font-size: 12px;
        }

        .footer-icp {
            display: inline-block;
            margin-top: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-copyright {
            padding: 24px 0;
            text-align: center;
        }

        .footer-copyright p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1199.98px) {
            .channel-link {
                padding: 0 10px;
                font-size: 13px;
            }

            .nav-category-link {
                padding: 0 10px;
                font-size: 13px;
            }

            .category-hero h1 {
                font-size: 44px;
            }

            .data-num {
                font-size: 44px;
            }
        }

        @media (max-width: 991.98px) {
            .section-padding {
                padding: 50px 0;
            }

            .header-brand-row {
                height: 60px;
            }

            .header-search {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .header-channel-row {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                height: auto;
                background: var(--white);
                box-shadow: 0 8px 20px rgba(11, 59, 82, 0.12);
                border-bottom: 1px solid var(--border);
            }

            .header-channel-row.mobile-open {
                display: block;
            }

            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0;
                height: auto;
                gap: 0;
            }

            .nav-item-wrapper {
                height: auto;
            }

            .channel-link,
            .nav-category-link {
                height: 44px;
                padding: 0 20px;
                width: 100%;
                justify-content: flex-start;
                border-bottom: 1px solid rgba(216, 227, 233, 0.6);
            }

            .channel-link::after {
                display: none;
            }

            .nav-divider {
                display: none;
            }

            .category-hero {
                padding: 50px 0;
            }

            .category-hero h1 {
                font-size: 34px;
            }

            .hero-img-wrap {
                margin-top: 30px;
            }

            .hero-img-wrap img {
                height: 280px;
            }

            .demo-img-wrap {
                margin-top: 30px;
                height: 300px;
            }

            .data-item {
                margin-bottom: 20px;
            }

            .cta-banner {
                padding: 40px 24px;
                margin-bottom: 50px;
            }
        }

        @media (max-width: 767.98px) {
            .logo-text {
                font-size: 17px;
            }

            .btn-header-consult {
                padding: 0 14px;
                font-size: 12px;
            }

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

            .category-hero .lead {
                font-size: 14px;
            }

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

            .demo-step {
                flex-direction: row;
                gap: 14px;
                padding: 18px;
            }

            .demo-num {
                font-size: 30px;
                min-width: 40px;
            }

            .data-num {
                font-size: 38px;
            }

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

            .cta-banner p {
                font-size: 14px;
            }

            .btn-accent,
            .btn-outline {
                padding: 10px 24px;
                font-size: 14px;
            }

            .intro-card {
                margin-bottom: 16px;
            }

            .quote-card {
                margin-bottom: 16px;
            }
        }

        @media (max-width: 520px) {
            .header-brand-row .container {
                gap: 8px;
            }

            .logo-text {
                font-size: 15px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .btn-header-consult span {
                display: none;
            }

            .btn-header-consult {
                width: 38px;
                padding: 0;
                justify-content: center;
                gap: 0;
            }

            .btn-header-consult i {
                font-size: 15px;
                margin: 0;
            }

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

            .demo-step {
                flex-direction: column;
            }

            .demo-num {
                font-size: 30px;
                text-align: left;
            }

            .hero-img-wrap img {
                height: 220px;
            }

            .footer-widgets {
                padding-bottom: 20px;
            }
        }

        /* 锚点滚动偏移 */
        .anchor-spacer {
            scroll-margin-top: 120px;
        }

/* roulang page: category2 */
:root {
            --ice-blue: #5EB8D8;
            --deep-blue: #0B3B52;
            --accent-orange: #FF7A45;
            --ice-white: #EAF5F9;
            --ink-blue: #0B1E2A;
            --body-text: #2C3E4C;
            --secondary-text: #5A6B76;
            --border-color: #D8E3E9;
            --card-white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 50px;
            --radius-badge: 6px;
            --shadow-soft: 0 4px 16px rgba(11, 59, 82, 0.08);
            --shadow-hover: 0 8px 24px rgba(11, 59, 82, 0.12);
            --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 120px;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.8;
            background: var(--ice-white);
            color: var(--body-text);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--ice-blue);
            text-decoration: none;
            transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        a:hover {
            color: var(--deep-blue);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-main);
            font-weight: 700;
            color: var(--ink-blue);
            line-height: 1.3;
            margin-top: 0;
            letter-spacing: -0.3px;
        }

        h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
        }

        h3 {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.4;
        }

        p {
            margin-bottom: 16px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--card-white);
            box-shadow: 0 2px 8px rgba(11, 59, 82, 0.06);
        }

        .header-brand-row {
            height: 64px;
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--ice-blue), var(--deep-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink-blue);
            letter-spacing: -0.3px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .logo-mg {
            color: var(--accent-orange);
        }

        .login-meta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search {
            position: relative;
            width: 220px;
        }

        .header-search .form-control {
            height: 38px;
            border-radius: 50px;
            padding-left: 36px;
            padding-right: 14px;
            font-size: 13px;
            border-color: var(--border-color);
            background: var(--ice-white);
            box-shadow: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .header-search .form-control:focus {
            border-color: var(--ice-blue);
            box-shadow: 0 0 0 0.2rem rgba(94, 184, 216, 0.15);
            background: #fff;
        }

        .header-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 13px;
            color: var(--secondary-text);
            pointer-events: none;
        }

        .btn-header-consult {
            height: 38px;
            padding: 0 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: var(--accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
            box-shadow: var(--shadow-soft);
            white-space: nowrap;
        }

        .btn-header-consult:hover {
            background: #ff8c5e;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-header-consult:active {
            transform: translateY(0);
        }

        .btn-header-consult:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background: var(--ice-white);
            color: var(--ink-blue);
            font-size: 16px;
            align-items: center;
            justify-content: center;
            transition: background 0.25s, color 0.25s;
        }

        .mobile-toggle:hover {
            background: var(--ice-blue);
            color: #fff;
        }

        .header-channel-row {
            background: rgba(234, 245, 249, 0.92);
            backdrop-filter: blur(6px);
            border-bottom: 1px solid var(--border-color);
            transition: box-shadow 0.3s;
        }

        .header-channel-row.scrolled {
            box-shadow: 0 4px 12px rgba(11, 59, 82, 0.08);
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            margin: 0;
            padding: 0;
            list-style: none;
            height: 48px;
            flex-wrap: nowrap;
        }

        .nav-item-wrapper {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .channel-link,
        .nav-category-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body-text);
            padding: 0 16px;
            height: 100%;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s;
            text-decoration: none;
        }

        .channel-link::after,
        .nav-category-link::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent-orange);
            transform: translateX(-50%);
            transition: width 0.3s ease;
        }

        .channel-link:hover,
        .nav-category-link:hover {
            color: var(--deep-blue);
        }

        .channel-link:hover::after,
        .nav-category-link:hover::after {
            width: 40%;
        }

        .channel-link.active,
        .nav-category-link.active {
            color: var(--deep-blue);
            font-weight: 600;
        }

        .channel-link.active::after,
        .nav-category-link.active::after {
            width: 100%;
        }

        .nav-divider {
            width: 1px;
            height: 22px;
            background: var(--border-color);
            margin: 0 8px;
            flex-shrink: 0;
        }

        .nav-category-link {
            color: var(--deep-blue);
            font-weight: 600;
        }

        .nav-category-link i {
            font-size: 11px;
            opacity: 0.6;
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            display: none;
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu .mobile-menu-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mobile-menu .mobile-menu-list li {
            border-bottom: 1px solid rgba(216, 227, 233, 0.6);
        }

        .mobile-menu .mobile-menu-list li:last-child {
            border-bottom: none;
        }

        .mobile-menu .mobile-menu-list a {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--body-text);
            font-weight: 500;
        }

        .mobile-menu .mobile-menu-list a:hover {
            background: var(--ice-white);
            color: var(--deep-blue);
        }

        .mobile-menu .mobile-menu-list a.active {
            color: var(--accent-orange);
            font-weight: 600;
        }

        /* ===== Page Hero (分类页) ===== */
        .page-hero {
            background: linear-gradient(135deg, #0B1E2A 0%, #0B3B52 55%, #175E7A 100%);
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0 90px;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 1;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 50%;
            background: radial-gradient(ellipse at right center, rgba(94, 184, 216, 0.18) 0%, transparent 70%);
            z-index: 2;
        }

        .page-hero .container {
            position: relative;
            z-index: 5;
        }

        .page-hero .row {
            align-items: center;
        }

        .hero-breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-breadcrumb a:hover {
            color: var(--ice-blue);
        }

        .hero-breadcrumb .sep {
            margin: 0 8px;
            opacity: 0.5;
        }

        .page-hero h1 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 48px;
            position: relative;
            display: inline-block;
        }

        .page-hero h1::after {
            content: none;
        }

        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 20px;
        }

        .hero-stat-item {
            border-left: 2px solid rgba(255, 255, 255, 0.25);
            padding-left: 14px;
        }

        .hero-stat-item .stat-num {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-img-wrap {
            position: relative;
            text-align: right;
            z-index: 5;
        }

        .hero-img-wrap img {
            border-radius: 20px;
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
            max-height: 380px;
            width: auto;
            margin-left: auto;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ===== Content Sections ===== */
        .content-section {
            padding: 90px 0;
        }

        .content-section .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--ice-blue);
            background: rgba(94, 184, 216, 0.12);
            border-radius: var(--radius-badge);
            padding: 4px 14px;
            letter-spacing: 0.3px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .content-section .section-title {
            margin-bottom: 20px;
            max-width: 600px;
        }

        .content-section .section-lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--secondary-text);
            max-width: 760px;
            margin-bottom: 32px;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            background: var(--card-white);
            border-bottom: 1px solid var(--border-color);
        }

        .intro-media {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            height: 100%;
            min-height: 340px;
        }

        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .intro-list {
            list-style: none;
            margin: 28px 0 0;
            padding: 0;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        .intro-list li:last-child {
            border-bottom: none;
        }

        .intro-list .list-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            flex-shrink: 0;
            background: rgba(94, 184, 216, 0.14);
            color: var(--ice-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .intro-list .list-text {
            font-size: 15px;
            line-height: 1.6;
            color: var(--body-text);
        }

        .intro-list .list-text strong {
            color: var(--ink-blue);
            font-weight: 600;
        }

        /* ===== Pricing Section ===== */
        .pricing-section {
            background: var(--ice-white);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 40px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 36px 30px 30px;
            box-shadow: var(--shadow-soft);
            display: flex;
            flex-direction: column;
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
        }

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

        .pricing-card.recommended {
            border-color: var(--ice-blue);
            box-shadow: 0 8px 30px rgba(11, 59, 82, 0.12);
            transform: scale(1.03);
            z-index: 2;
            background: linear-gradient(180deg, #fff 0%, #f7fbfd 100%);
        }

        .pricing-card.recommended:hover {
            transform: scale(1.03) translateY(-4px);
        }

        .pricing-card .plan-tag {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
            padding: 4px 18px;
            border-radius: 30px;
            white-space: nowrap;
            box-shadow: 0 4px 10px rgba(255, 122, 69, 0.3);
        }

        .pricing-card .plan-tag.default {
            background: #C4D2DA;
            box-shadow: none;
            color: var(--body-text);
        }

        .plan-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-blue);
            margin-bottom: 6px;
            text-align: center;
        }

        .plan-desc {
            font-size: 13px;
            color: var(--secondary-text);
            text-align: center;
            margin-bottom: 20px;
        }

        .plan-price {
            text-align: center;
            margin-bottom: 24px;
            padding-bottom: 22px;
            border-bottom: 1px solid var(--border-color);
        }

        .plan-price .price-num {
            font-size: 44px;
            font-weight: 800;
            color: var(--deep-blue);
            font-family: "Bahnschrift", "DIN Alternate", var(--font-main);
            line-height: 1;
        }

        .plan-price .price-unit {
            font-size: 14px;
            color: var(--secondary-text);
            margin-left: 4px;
        }

        .plan-features {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
            flex-grow: 1;
        }

        .plan-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--body-text);
            padding: 7px 0;
            line-height: 1.5;
        }

        .plan-features li i {
            color: var(--ice-blue);
            font-size: 13px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .plan-btn {
            display: block;
            width: 100%;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.25s, box-shadow 0.25s;
            text-decoration: none;
        }

        .plan-btn.btn-primary-plan {
            background: var(--accent-orange);
            color: #fff;
            box-shadow: var(--shadow-soft);
            border: 2px solid var(--accent-orange);
        }

        .plan-btn.btn-primary-plan:hover {
            background: #ff8c5e;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }

        .plan-btn.btn-primary-plan:active {
            transform: translateY(0);
        }

        .plan-btn.btn-outline-plan {
            background: transparent;
            color: var(--deep-blue);
            border: 2px solid var(--ice-blue);
        }

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

        .plan-btn.btn-outline-plan:active {
            transform: translateY(0);
        }

        .plan-btn:focus-visible {
            outline: 2px solid var(--accent-orange);
            outline-offset: 2px;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(120deg, rgba(11, 59, 82, 0.97) 0%, rgba(11, 30, 42, 0.98) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(94, 184, 216, 0.12);
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 122, 69, 0.1);
        }

        .cta-banner .container {
            position: relative;
            z-index: 5;
        }

        .cta-banner h2 {
            color: #fff;
            font-size: 32px;
            margin-bottom: 14px;
        }

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

        .cta-banner .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-orange);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 14px 42px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 6px 20px rgba(255, 122, 69, 0.3);
            transition: background 0.3s, transform 0.25s, box-shadow 0.3s;
        }

        .cta-banner .btn-cta-large:hover {
            background: #ff8c5e;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 122, 69, 0.35);
            color: #fff;
        }

        .cta-banner .btn-cta-large:active {
            transform: translateY(0);
        }

        .cta-banner .btn-cta-large:focus-visible {
            outline: 2px solid var(--ice-blue);
            outline-offset: 3px;
        }

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

        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-white);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item:hover {
            border-color: var(--ice-blue);
        }

        .faq-item.open {
            border-color: var(--ice-blue);
            box-shadow: var(--shadow-soft);
            background: var(--ice-white);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--ice-blue);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.35s ease, background 0.3s;
        }

        .faq-item.open .faq-icon {
            background: var(--accent-orange);
            transform: rotate(45deg);
        }

        .faq-question h3 {
            margin: 0;
            font-size: 17px;
            font-weight: 600;
            color: var(--ink-blue);
            flex: 1;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px 0 66px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--body-text);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Bottom CTA ===== */
        .bottom-cta {
            background: var(--ink-blue);
            padding: 64px 0;
        }

        .bottom-cta h2 {
            color: #fff;
            text-align: center;
            font-size: 28px;
            margin-bottom: 12px;
        }

        .bottom-cta p {
            color: rgba(255, 255, 255, 0.6);
            text-align: center;
            font-size: 15px;
            margin-bottom: 28px;
        }

        .bottom-cta .btn-bottom-cta {
            display: block;
            width: max-content;
            margin: 0 auto;
            background: var(--accent-orange);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 14px 46px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 6px 20px rgba(255, 122, 69, 0.25);
            transition: background 0.3s, transform 0.25s, box-shadow 0.3s;
        }

        .bottom-cta .btn-bottom-cta:hover {
            background: #ff8c5e;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(255, 122, 69, 0.3);
            color: #fff;
        }

        .bottom-cta .btn-bottom-cta:focus-visible {
            outline: 2px solid var(--ice-blue);
            outline-offset: 3px;
        }

        /* ===== Float CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 1080;
        }

        .float-cta .btn-float {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 13px 26px;
            font-size: 14px;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.35);
            transition: transform 0.25s, box-shadow 0.3s, background 0.3s;
        }

        .float-cta .btn-float:hover {
            background: #ff8c5e;
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(255, 122, 69, 0.4);
            color: #fff;
        }

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

        .float-cta .btn-float:focus-visible {
            outline: 2px solid var(--ice-blue);
            outline-offset: 2px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-blue);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-widgets {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .site-footer .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 14px;
        }

        .site-footer .footer-logo .logo-text {
            font-size: 18px;
            color: #fff;
            font-weight: 700;
        }

        .site-footer .footer-logo .logo-mg {
            color: var(--accent-orange);
        }

        .site-footer .footer-about p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 260px;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

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

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

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.25s, padding-left 0.25s;
        }

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

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

        .site-footer .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer .footer-contact-list i {
            color: var(--ice-blue);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .site-footer .footer-icp {
            display: inline-block;
            margin-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 4px;
            padding: 2px 10px;
        }

        .site-footer .footer-copyright {
            padding: 22px 0;
            text-align: center;
            margin-top: 40px;
            background: rgba(0, 0, 0, 0.25);
        }

        .site-footer .footer-copyright p {
            margin: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .channel-link,
            .nav-category-link {
                font-size: 14px;
                padding: 0 12px;
            }
            .page-hero h1 {
                font-size: 42px;
            }
        }

        @media (max-width: 991px) {
            .mobile-toggle {
                display: flex;
            }
            .header-search {
                display: none;
            }
            .header-channel-row {
                display: none;
            }
            .page-hero {
                padding: 56px 0 64px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .page-hero .hero-img-wrap {
                margin-top: 36px;
                text-align: center;
            }
            .page-hero .hero-img-wrap img {
                max-height: 240px;
                margin: 0 auto;
            }
            .hero-stats {
                gap: 20px;
            }
            .content-section {
                padding: 56px 0;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }
            .pricing-card.recommended {
                transform: none;
            }
            .pricing-card.recommended:hover {
                transform: translateY(-4px);
            }
            .intro-media {
                margin-top: 28px;
                min-height: 240px;
            }
            .cta-banner {
                padding: 50px 0;
            }
            .cta-banner h2 {
                font-size: 26px;
            }
            .faq-question h3 {
                font-size: 16px;
            }
        }

        @media (max-width: 576px) {
            .logo-text {
                font-size: 17px;
            }
            .btn-header-consult span {
                display: none;
            }
            .btn-header-consult {
                padding: 0 14px;
            }
            .page-hero {
                padding: 42px 0 50px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 16px;
            }
            .content-section {
                padding: 44px 0;
            }
            .content-section .section-title {
                font-size: 24px;
            }
            .plan-price .price-num {
                font-size: 34px;
            }
            .faq-answer {
                padding: 0 18px 0 50px;
            }
            .faq-question {
                padding: 16px 18px;
            }
            .cta-banner .btn-cta-large {
                width: calc(100% - 32px);
                max-width: 320px;
                justify-content: center;
            }
            .float-cta {
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                padding: 10px 16px 14px;
                background: linear-gradient(180deg, rgba(11, 30, 42, 0) 0%, rgba(11, 30, 42, 0.75) 100%);
                text-align: center;
            }
            .float-cta .btn-float {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                max-width: 480px;
                margin: 0 auto;
            }
            body {
                padding-bottom: 70px;
            }
            .site-footer {
                padding-top: 44px;
            }
        }