/* roulang page: index */
:root {
            --bg-page: #F4F7FB;
            --bg-card: #FFFFFF;
            --primary: #1F4E8C;
            --primary-hover: #1A4379;
            --secondary: #2E6FBF;
            --secondary-hover: #2760A6;
            --accent: #129B6C;
            --accent-light: #E6F7F0;
            --warning: #D97706;
            --warning-light: #FEF3E2;
            --text-primary: #142A44;
            --text-secondary: #5B6B81;
            --border: #E3EAF3;
            --border-dark: #C9D6E5;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 80, 0.04);
            --shadow-md: 0 8px 24px rgba(20, 40, 80, 0.06);
            --shadow-lg: 0 14px 34px rgba(20, 40, 80, 0.10);
            --transition: all 0.22s ease;
            --nav-top-bg: #1E3A5F;
            --nav-top-text: #D5E0EC;
            --nav-main-bg: #FFFFFF;
            --footer-bg: #1E3A5F;
            --footer-text: #C7D5E6;
            --footer-heading: #FFFFFF;
            --container-max: 1180px;
            --section-pad: 72px;
            --section-pad-mobile: 44px;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-numeric: "SF Mono", "Segoe UI", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1200px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

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

        /* ========== Section Base ========== */
        .section {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
        }

        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
        }

        .section-alt {
            background-color: #EDF2F9;
        }

        .section-white {
            background-color: #FFFFFF;
        }

        .section-image-bg {
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            position: relative;
        }

        .section-image-bg::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(20, 42, 68, 0.72);
            z-index: 0;
        }

        .section-image-bg>* {
            position: relative;
            z-index: 1;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }

        .section-label::before {
            content: "";
            width: 4px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 14px 0;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 720px;
        }

        .section-header-center {
            text-align: center;
            margin-bottom: 36px;
        }

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

        @media (max-width: 576px) {
            .section-title {
                font-size: 21px;
            }
            .section-desc {
                font-size: 14px;
            }
            .section-header-center {
                margin-bottom: 24px;
            }
        }

        /* ========== Top Bar Nav ========== */
        .topbar {
            background-color: var(--nav-top-bg);
            color: var(--nav-top-text);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.02em;
        }

        .topbar .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .topbar-brand-mini {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 13px;
        }

        .topbar-brand-mini:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .topbar-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .topbar-links a {
            color: var(--nav-top-text);
            font-size: 13px;
            transition: var(--transition);
        }

        .topbar-links a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .topbar-divider {
            width: 1px;
            height: 14px;
            background: rgba(213, 224, 236, 0.3);
        }

        @media (max-width: 576px) {
            .topbar .container-custom {
                justify-content: center;
            }
            .topbar-links {
                gap: 12px;
                justify-content: center;
            }
            .topbar-divider {
                display: none;
            }
        }

        /* ========== Main Nav ========== */
        .mainnav-wrapper {
            background-color: var(--nav-main-bg);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(20, 40, 80, 0.04);
        }

        .mainnav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            position: relative;
        }

        .mainnav-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .mainnav-logo:hover {
            text-decoration: none;
            color: var(--primary-hover);
        }

        .mainnav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .mainnav-menu li {
            margin: 0;
        }

        .mainnav-menu a {
            display: block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }

        .mainnav-menu a:hover {
            color: var(--primary);
            background-color: #F0F5FB;
            text-decoration: none;
        }

        .mainnav-menu a.active {
            color: var(--primary);
            background-color: #EAF1F9;
            font-weight: 600;
        }

        .mainnav-tools {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mainnav-tools .btn-tool {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
        }

        .mainnav-tools .btn-tool:hover {
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }

        .navbar-toggler-custom {
            display: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            background: #FFFFFF;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background: #F0F5FB;
            border-color: var(--primary);
            color: var(--primary);
        }

        @media (max-width: 992px) {
            .mainnav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #FFFFFF;
                border: 1px solid var(--border);
                border-radius: 0 0 var(--radius) var(--radius);
                padding: 8px 0;
                box-shadow: var(--shadow-md);
                gap: 0;
            }
            .mainnav-menu.open {
                display: flex;
            }
            .mainnav-menu a {
                padding: 12px 20px;
                border-radius: 0;
                font-size: 15px;
            }
            .mainnav-menu a:hover {
                background-color: #F5F9FD;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .mainnav-tools {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .mainnav {
                padding: 10px 0;
            }
            .mainnav-logo {
                font-size: 19px;
            }
        }

        /* ========== Hero - 对比选型 ========== */
        .hero-section {
            padding: 64px 0 72px;
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0 0 18px 0;
            letter-spacing: -0.015em;
        }

        .hero-content h1 .highlight {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 24px 0;
        }

        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn-primary-custom {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-sm);
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            background-color: var(--primary-hover);
            color: #FFFFFF;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(31, 78, 140, 0.18);
        }

        .btn-outline-custom {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-custom:hover {
            background-color: #F0F5FB;
            color: var(--primary-hover);
            text-decoration: none;
            border-color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .hero-meta-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-secondary);
        }

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

        .hero-meta-row i {
            color: var(--accent);
            font-size: 15px;
        }

        .hero-compare-wrap {
            background-color: var(--bg-page);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }

        .hero-compare-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .compare-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 16px;
            transition: var(--transition);
            position: relative;
            cursor: default;
        }

        .compare-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-dark);
        }

        .compare-card.recommended {
            border: 2px solid var(--accent);
            box-shadow: 0 8px 24px rgba(18, 155, 108, 0.15);
            background: #FDFFFE;
        }

        .compare-badge {
            position: absolute;
            top: -10px;
            right: 12px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .compare-card h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .compare-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0 0 10px 0;
            line-height: 1.7;
        }

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

        .compare-feature-list li {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 6px;
            padding: 3px 0;
        }

        .compare-feature-list li i {
            color: var(--accent);
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        @media (max-width: 992px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 14px;
            }
        }

        @media (max-width: 576px) {
            .hero-section {
                padding: 40px 0 48px;
            }
            .hero-content h1 {
                font-size: 22px;
            }
            .compare-cards {
                grid-template-columns: 1fr;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                justify-content: center;
                width: 100%;
            }
            .hero-meta-row {
                gap: 14px;
                flex-direction: column;
            }
        }

        /* ========== Product Value ========== */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .value-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .value-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .value-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: #EAF1F9;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .value-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px 0;
        }

        .value-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 768px) {
            .value-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        @media (min-width: 768px) and (max-width: 992px) {
            .value-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ========== Feature Showcase ========== */
        .feature-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }

        .feature-card .feature-icon {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .feature-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .feature-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .feature-showcase {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .feature-showcase {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .steps-grid::before {
            content: "";
            position: absolute;
            top: 28px;
            left: 12.5%;
            right: 12.5%;
            height: 1px;
            background: var(--border-dark);
            z-index: 0;
        }

        .step-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 18px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
            z-index: 1;
            transition: var(--transition);
        }

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

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            margin: 0 auto 12px;
            font-family: var(--font-numeric);
        }

        .step-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .steps-grid::before {
                display: none;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== Multi-entry ========== */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .entry-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .entry-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }

        .entry-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #EAF1F9;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .entry-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px 0;
        }

        .entry-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .entry-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Category Matrix ========== */
        .cat-matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .cat-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .cat-card-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }

        .cat-card-body {
            padding: 18px 16px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .cat-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .cat-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0 0 12px 0;
            line-height: 1.7;
            flex-grow: 1;
        }

        .cat-card-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cat-card-link i {
            font-size: 12px;
            transition: transform 0.2s;
        }

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

        @media (max-width: 992px) {
            .cat-matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .cat-matrix-grid {
                grid-template-columns: 1fr;
            }
            .cat-card-img {
                height: 130px;
            }
        }

        /* ========== Data Metrics ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 18px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }

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

        .metric-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-numeric);
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .metric-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px 0;
        }

        .metric-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-number {
                font-size: 26px;
            }
        }

        /* ========== Scenario Wall ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .scenario-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .scenario-body {
            padding: 18px 16px;
        }

        .scenario-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .scenario-body p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Testimonials ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .testimonial-quote {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.8;
            margin: 0 0 16px 0;
            position: relative;
            padding-left: 18px;
            border-left: 3px solid var(--accent);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #EAF1F9;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .testimonial-author-info strong {
            display: block;
            font-size: 14px;
            color: var(--text-primary);
        }

        .testimonial-author-info span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== Brand Intro ========== */
        .brand-intro-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 32px;
            align-items: center;
        }

        .brand-intro-visual {
            height: 100%;
            min-height: 220px;
            border-radius: var(--radius);
            background-size: cover;
            background-position: center;
        }

        .brand-intro-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px 0;
        }

        .brand-intro-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0 0 12px 0;
        }

        .brand-intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }

        .brand-tag {
            font-size: 12px;
            color: var(--secondary);
            background: #EAF1F9;
            border-radius: 20px;
            padding: 4px 14px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .brand-intro-card {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
            .brand-intro-visual {
                min-height: 180px;
            }
            .brand-intro-content h2 {
                font-size: 20px;
            }
        }

        /* ========== Hot Matches ========== */
        .hot-match-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .hot-match-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 14px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }

        .hot-match-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }

        .hot-match-league {
            font-size: 11px;
            color: var(--secondary);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .hot-match-teams {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .hot-match-time {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }

        .hot-match-status {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            border-radius: 4px;
            padding: 3px 10px;
        }

        @media (max-width: 992px) {
            .hot-match-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .hot-match-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== News List ========== */
        .news-wrapper {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
            align-items: start;
        }

        .news-list {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 8px 20px;
            box-shadow: var(--shadow-sm);
        }

        .news-item {
            padding: 16px 0;
            border-bottom: 1px solid #F0F4F9;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
        }

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

        .news-item:hover {
            opacity: 0.85;
        }

        .news-thumb {
            width: 72px;
            height: 54px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-item-content h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px 0;
            line-height: 1.5;
        }

        .news-item-content p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item-date {
            font-size: 11px;
            color: #8A9AB0;
            margin-top: 4px;
            display: block;
        }

        .news-more-btn {
            display: block;
            text-align: center;
            padding: 12px 0;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            border-top: 1px solid #F0F4F9;
            transition: var(--transition);
        }

        .news-more-btn:hover {
            color: var(--primary-hover);
            text-decoration: none;
            background: #FAFBFD;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-tag-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px;
            box-shadow: var(--shadow-sm);
        }

        .news-tag-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 12px 0;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag-cloud .tag {
            font-size: 12px;
            color: var(--text-secondary);
            background: #F0F5FB;
            border-radius: 4px;
            padding: 4px 10px;
            transition: var(--transition);
        }

        .tag-cloud .tag:hover {
            color: var(--primary);
            background: #E4EDF7;
            text-decoration: none;
        }

        .news-hot-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px;
            box-shadow: var(--shadow-sm);
        }

        .news-hot-card h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 12px 0;
        }

        .news-hot-item {
            display: flex;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px solid #F0F4F9;
            align-items: flex-start;
        }

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

        .news-hot-rank {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            font-family: var(--font-numeric);
            flex-shrink: 0;
            width: 26px;
            text-align: center;
        }

        .news-hot-item p {
            font-size: 13px;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.6;
        }

        .news-hot-item span {
            font-size: 11px;
            color: #8A9AB0;
        }

        @media (max-width: 768px) {
            .news-wrapper {
                grid-template-columns: 1fr;
            }
            .news-thumb {
                width: 56px;
                height: 42px;
            }
        }

        /* ========== Data Sources ========== */
        .source-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .source-card {
            background: #FFFFFF;
            border: 1px dashed var(--border-dark);
            border-radius: var(--radius);
            padding: 18px 12px;
            text-align: center;
            transition: var(--transition);
        }

        .source-card:hover {
            border-color: var(--secondary);
            background: #FAFCFF;
        }

        .source-card span {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .source-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ========== Safety Strip ========== */
        .safety-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: #EDF2F9;
            border-radius: var(--radius);
            padding: 32px 24px;
        }

        .safety-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .safety-item i {
            font-size: 22px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .safety-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px 0;
        }

        .safety-item p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 992px) {
            .safety-strip {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 24px 18px;
            }
        }

        @media (max-width: 576px) {
            .safety-strip {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-custom .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            background: #FFFFFF;
            padding: 16px 20px;
            transition: var(--transition);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: #EAF1F9;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--secondary);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-button::after {
            filter: brightness(0.6);
        }

        .accordion-custom .accordion-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
            padding: 16px 20px;
        }

        /* ========== CTA Section ========== */
        .cta-card {
            background: var(--primary);
            border-radius: var(--radius);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-card h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 8px 0;
            color: #FFFFFF;
        }

        .cta-card p {
            font-size: 14px;
            margin: 0;
            color: #D5E0EC;
            line-height: 1.8;
            max-width: 520px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-cta-light {
            background: #FFFFFF;
            color: var(--primary);
            border-radius: var(--radius-sm);
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-light:hover {
            background: #EAF1F9;
            color: var(--primary-hover);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-cta-accent {
            background: var(--accent);
            color: #FFFFFF;
            border-radius: var(--radius-sm);
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-accent:hover {
            background: #0F8560;
            color: #FFFFFF;
            text-decoration: none;
            transform: translateY(-1px);
        }

        @media (max-width: 576px) {
            .cta-card {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-card p {
                max-width: 100%;
            }
            .cta-actions {
                justify-content: center;
                width: 100%;
            }
            .btn-cta-light,
            .btn-cta-accent {
                flex: 1;
                justify-content: center;
                min-width: 120px;
            }
        }

        /* ========== Footer ========== */
        .footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 52px;
            padding-bottom: 0;
            font-size: 13px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px 0;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--footer-text);
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--footer-heading);
            margin: 0 0 14px 0;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col ul li a {
            color: var(--footer-text);
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 13px;
            outline: none;
            transition: var(--transition);
        }

        .footer-subscribe input::placeholder {
            color: #A8BBCF;
        }

        .footer-subscribe input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            background: var(--accent);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background: #0F8560;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px 20px;
            font-size: 12px;
            color: #A8BBCF;
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-bottom-links a {
            color: #A8BBCF;
            font-size: 12px;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-bottom .divider-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #7A8DA3;
            display: inline-block;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .footer-subscribe {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --bg-page: #F4F7FB;
            --bg-card: #FFFFFF;
            --primary: #1F4E8C;
            --primary-hover: #1A4379;
            --secondary: #2E6FBF;
            --secondary-hover: #2760A6;
            --accent: #129B6C;
            --accent-light: #E6F7F0;
            --warning: #D97706;
            --warning-light: #FEF3E2;
            --text-primary: #142A44;
            --text-secondary: #5B6B81;
            --border: #E3EAF3;
            --border-dark: #C9D6E5;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 80, 0.04);
            --shadow-md: 0 8px 24px rgba(20, 40, 80, 0.06);
            --shadow-lg: 0 14px 34px rgba(20, 40, 80, 0.10);
            --transition: all 0.22s ease;
            --nav-top-bg: #1E3A5F;
            --nav-top-text: #D5E0EC;
            --nav-main-bg: #FFFFFF;
            --footer-bg: #1E3A5F;
            --footer-text: #C7D5E6;
            --footer-heading: #FFFFFF;
            --container-max: 1180px;
            --section-pad: 72px;
            --section-pad-mobile: 44px;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-numeric: "SF Mono", "Segoe UI", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .section {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
        }

        .section-alt {
            background-color: #EDF2F9;
        }

        .section-white {
            background-color: #FFFFFF;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }

        .section-label::before {
            content: "";
            width: 4px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 14px 0;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 720px;
        }

        .section-header-center {
            text-align: center;
            margin-bottom: 36px;
        }

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

        .topbar {
            background-color: var(--nav-top-bg);
            color: var(--nav-top-text);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.02em;
        }

        .topbar .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .topbar-brand-mini {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 13px;
        }

        .topbar-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .topbar-links a {
            color: var(--nav-top-text);
            font-size: 13px;
            text-decoration: none;
        }

        .topbar-links a:hover {
            color: #FFFFFF;
        }

        .mainnav {
            background-color: var(--nav-main-bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(20, 40, 80, 0.04);
        }

        .mainnav .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .mainnav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

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

        .mainnav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .mainnav-menu li a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            text-decoration: none;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .mainnav-menu li a:hover {
            color: var(--primary);
            border-bottom-color: var(--secondary);
        }

        .mainnav-menu li a.active {
            color: var(--primary);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .mainnav-tools {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .btn-tool {
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dark);
            color: var(--primary);
            background-color: #FFFFFF;
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-tool:hover {
            border-color: var(--primary);
            color: var(--primary-hover);
            background-color: #F5F8FC;
            text-decoration: none;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 22px;
            color: var(--text-primary);
            padding: 6px 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background-color: #F0F5FA;
            border-color: var(--border-dark);
        }

        .breadcrumb-wrap {
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
        }

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

        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 500;
        }

        .page-header-section {
            background-color: #FFFFFF;
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }

        .page-header-section h1 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px 0;
            line-height: 1.35;
        }

        .page-header-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 800px;
            margin: 0 0 20px 0;
        }

        .page-stats-row {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .stat-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: #F0F5FA;
            border-radius: 20px;
            padding: 6px 14px;
        }

        .stat-pill i {
            color: var(--accent);
            font-size: 14px;
        }

        .filter-panel {
            background-color: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
        }

        .filter-panel .form-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .filter-panel .form-select,
        .filter-panel .form-control {
            font-size: 14px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            background-color: #FFFFFF;
            transition: var(--transition);
        }

        .filter-panel .form-select:focus,
        .filter-panel .form-control:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(46, 111, 191, 0.12);
        }

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

        .match-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-dark);
        }

        .match-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background-color: #E9EEF5;
        }

        .match-card-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .match-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            gap: 8px;
            flex-wrap: wrap;
        }

        .match-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }

        .badge-live {
            background-color: var(--accent-light);
            color: var(--accent);
        }

        .badge-scheduled {
            background-color: #EAF1FA;
            color: var(--primary);
        }

        .badge-finished {
            background-color: #F0F3F7;
            color: var(--text-secondary);
        }

        .match-date {
            font-size: 12px;
            color: var(--text-secondary);
        }

        .match-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
            line-height: 1.5;
        }

        .match-score {
            font-family: var(--font-numeric);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .match-score .vs-text {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin: 0 8px;
        }

        .match-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .league-quick-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 20px;
        }

        .league-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            display: block;
            color: var(--text-primary);
            text-decoration: none;
        }

        .league-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: var(--text-primary);
            text-decoration: none;
            border-color: var(--secondary);
        }

        .league-card .league-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: #EAF1FA;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--primary);
            font-size: 22px;
        }

        .league-card h3 {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 6px 0;
            color: var(--text-primary);
        }

        .league-card p {
            font-size: 12px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .feature-match-horizontal {
            display: flex;
            align-items: center;
            gap: 20px;
            background-color: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            flex-wrap: wrap;
        }

        .feature-match-horizontal:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }

        .feature-match-img {
            width: 200px;
            height: 132px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            background-color: #E9EEF5;
        }

        .feature-match-info {
            flex: 1;
            min-width: 200px;
        }

        .feature-match-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
        }

        .feature-match-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 10px 0;
            line-height: 1.7;
        }

        .feature-match-score {
            font-family: var(--font-numeric);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            min-width: 120px;
        }

        .data-compare-box {
            background-color: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .data-compare-box h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 16px 0;
        }

        .compare-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #EFF3F8;
            font-size: 14px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-label {
            color: var(--text-secondary);
        }

        .compare-value {
            font-weight: 600;
            color: var(--text-primary);
        }

        .compare-value.highlight {
            color: var(--accent);
        }

        .rules-callout {
            background-color: var(--warning-light);
            border-left: 4px solid var(--warning);
            padding: 16px 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.8;
        }

        .rules-callout strong {
            color: var(--warning);
        }

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

        .accordion-custom .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            background-color: #FFFFFF;
            padding: 16px 20px;
            transition: var(--transition);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--primary);
            background-color: #F8FAFD;
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(46, 111, 191, 0.15);
            border-color: var(--secondary);
        }

        .accordion-custom .accordion-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 16px 20px 20px;
        }

        .cta-box {
            background: linear-gradient(135deg, #1F4E8C 0%, #2563A0 100%);
            border-radius: var(--radius);
            padding: 32px 36px;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .cta-box h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 0 0 8px 0;
            color: #FFFFFF;
        }

        .cta-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }

        .cta-box .btn-primary-custom {
            background-color: #FFFFFF;
            color: var(--primary);
            border: none;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .cta-box .btn-primary-custom:hover {
            background-color: #E8F0FB;
            transform: translateY(-1px);
        }

        .footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--footer-heading);
            margin: 0 0 12px 0;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--footer-text);
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--footer-heading);
            margin: 0 0 14px 0;
        }

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

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

        .footer-col ul li a {
            color: var(--footer-text);
            font-size: 13px;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .footer-subscribe input {
            flex: 1;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            background-color: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 13px;
            padding: 8px 12px;
            transition: var(--transition);
            min-width: 0;
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-subscribe input:focus {
            border-color: rgba(255, 255, 255, 0.5);
            outline: none;
        }

        .footer-subscribe button {
            background-color: var(--accent);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            padding: 8px 16px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background-color: #0E8A5F;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 12px;
            color: var(--footer-text);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--footer-text);
            text-decoration: none;
            font-size: 12px;
        }

        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        .divider-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.35);
            display: inline-block;
        }

        .btn-primary-custom {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            display: inline-block;
            text-decoration: none;
        }

        .btn-primary-custom:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            text-decoration: none;
            color: #FFFFFF;
        }

        .btn-outline-custom {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            display: inline-block;
            text-decoration: none;
        }

        .btn-outline-custom:hover {
            background-color: #F0F5FA;
            border-color: var(--primary-hover);
            color: var(--primary-hover);
            transform: translateY(-1px);
            text-decoration: none;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .mainnav-menu {
                gap: 16px;
            }

            .mainnav-tools {
                display: none;
            }

            .feature-match-horizontal {
                flex-direction: column;
                align-items: flex-start;
            }

            .feature-match-img {
                width: 100%;
                height: 180px;
            }

            .feature-match-score {
                text-align: left;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }

            .section-title {
                font-size: 21px;
            }

            .page-header-section h1 {
                font-size: 24px;
            }

            .mainnav .container-custom {
                flex-wrap: nowrap;
            }

            .mainnav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 16px 20px;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 99;
            }

            .mainnav-menu.show {
                display: flex;
            }

            .mainnav-menu li {
                width: 100%;
            }

            .mainnav-menu li a {
                display: block;
                padding: 10px 0;
                border-bottom: 1px solid #EFF3F8;
                white-space: normal;
            }

            .mainnav-menu li:last-child a {
                border-bottom: none;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }

            .filter-panel {
                padding: 16px;
            }

            .league-quick-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .match-card-img {
                height: 160px;
            }

            .page-header-section {
                padding: 32px 0 28px;
            }

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

            .page-stats-row {
                gap: 10px;
            }

            .stat-pill {
                font-size: 12px;
                padding: 4px 10px;
            }

            .match-score {
                font-size: 18px;
            }

            .league-quick-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category2 */
:root {
      --bg-page: #F4F7FB;
      --bg-card: #FFFFFF;
      --primary: #1F4E8C;
      --primary-hover: #1A4379;
      --secondary: #2E6FBF;
      --secondary-hover: #2760A6;
      --accent: #129B6C;
      --accent-light: #E6F7F0;
      --warning: #D97706;
      --warning-light: #FEF3E2;
      --text-primary: #142A44;
      --text-secondary: #5B6B81;
      --border: #E3EAF3;
      --border-dark: #C9D6E5;
      --radius: 8px;
      --radius-sm: 6px;
      --shadow-sm: 0 2px 8px rgba(20, 40, 80, 0.04);
      --shadow-md: 0 8px 24px rgba(20, 40, 80, 0.06);
      --shadow-lg: 0 14px 34px rgba(20, 40, 80, 0.10);
      --transition: all 0.22s ease;
      --nav-top-bg: #1E3A5F;
      --nav-top-text: #D5E0EC;
      --nav-main-bg: #FFFFFF;
      --footer-bg: #1E3A5F;
      --footer-text: #C7D5E6;
      --footer-heading: #FFFFFF;
      --container-max: 1180px;
      --section-pad: 72px;
      --section-pad-mobile: 44px;
      --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      --font-numeric: "SF Mono", "Segoe UI", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-body);
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-primary);
      background-color: var(--bg-page);
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

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

    a:focus-visible {
      outline: 2px solid var(--secondary);
      outline-offset: 2px;
      border-radius: 2px;
    }

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

    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--secondary);
      outline-offset: 2px;
    }

    .container-custom {
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 32px;
      padding-right: 32px;
    }

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

    /* ========== Section Base ========== */
    .section {
      padding-top: var(--section-pad);
      padding-bottom: var(--section-pad);
    }

    @media (max-width: 575.98px) {
      .section {
        padding-top: var(--section-pad-mobile);
        padding-bottom: var(--section-pad-mobile);
      }
    }

    .section-alt {
      background-color: #EDF2F9;
    }

    .section-white {
      background-color: #FFFFFF;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 500;
      color: var(--secondary);
      letter-spacing: 0.04em;
      margin-bottom: 10px;
    }

    .section-label::before {
      content: "";
      width: 4px;
      height: 16px;
      background: var(--accent);
      border-radius: 2px;
    }

    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.35;
      margin: 0 0 14px 0;
      letter-spacing: -0.01em;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.85;
      margin: 0 0 28px 0;
      max-width: 720px;
    }

    .section-header-center {
      text-align: center;
      margin-bottom: 36px;
    }

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

    @media (max-width: 767.98px) {
      .section-title {
        font-size: 21px;
      }
      .section-desc {
        font-size: 14px;
      }
      .section-header-center {
        margin-bottom: 24px;
      }
    }

    /* ========== Main Navigation ========== */
    .mainnav {
      background-color: var(--nav-main-bg);
      border-bottom: 1px solid var(--border);
      padding: 12px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      position: relative;
      z-index: 1000;
    }

    .mainnav-logo {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-primary);
      letter-spacing: 0.01em;
      white-space: nowrap;
    }

    .mainnav-logo span {
      color: var(--primary);
    }

    .mainnav-logo:hover {
      text-decoration: none;
      color: var(--text-primary);
    }

    .mainnav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 4px;
    }

    .mainnav-menu li a {
      display: inline-block;
      padding: 8px 16px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-primary);
      border-radius: 4px;
      transition: var(--transition);
      position: relative;
    }

    .mainnav-menu li a:hover,
    .mainnav-menu li a.active {
      background-color: #EDF2F9;
      color: var(--primary);
      text-decoration: none;
    }

    .mainnav-menu li a.active::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 4px;
      height: 2px;
      background: var(--primary);
      border-radius: 1px;
    }

    .mainnav-tools {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-tool {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: 4px;
      border: 1px solid var(--border-dark);
      color: var(--text-primary);
      background-color: #FFFFFF;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-tool:hover {
      border-color: var(--primary);
      color: var(--primary);
      text-decoration: none;
      background-color: #F5F8FC;
    }

    .navbar-toggler-custom {
      display: none;
      background: none;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
      font-size: 22px;
      color: var(--text-primary);
      padding: 4px 10px;
      cursor: pointer;
      transition: var(--transition);
    }

    .navbar-toggler-custom:hover {
      background-color: #EDF2F9;
      color: var(--primary);
    }

    @media (max-width: 991.98px) {
      .mainnav {
        padding-left: 16px;
        padding-right: 16px;
      }
      .mainnav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        background: #FFFFFF;
        border-top: 1px solid var(--border);
        padding: 8px 0;
      }
      .mainnav-menu.show {
        display: flex;
      }
      .mainnav-menu li a {
        display: block;
        padding: 10px 16px;
      }
      .mainnav-menu li a.active::after {
        display: none;
      }
      .mainnav-tools {
        display: none;
      }
      .navbar-toggler-custom {
        display: inline-block;
      }
    }

    /* ========== Breadcrumb ========== */
    .breadcrumb-section {
      padding: 16px 0;
      background-color: transparent;
    }

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

    .breadcrumb-custom li {
      display: inline-flex;
      align-items: center;
    }

    .breadcrumb-custom li + li::before {
      content: "/";
      margin: 0 8px;
      color: var(--border-dark);
    }

    .breadcrumb-custom a {
      color: var(--text-secondary);
      text-decoration: none;
    }

    .breadcrumb-custom a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    .breadcrumb-custom .active {
      color: var(--text-primary);
      font-weight: 500;
    }

    /* ========== Category Hero ========== */
    .category-hero {
      padding: 36px 0 20px;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border);
    }

    .category-hero h1 {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 10px 0;
      letter-spacing: -0.01em;
    }

    .category-hero .lead {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.85;
      margin-bottom: 24px;
      max-width: 760px;
    }

    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 24px 48px;
      margin-bottom: 8px;
    }

    .hero-stat-item {
      display: flex;
      flex-direction: column;
    }

    .hero-stat-value {
      font-family: var(--font-numeric);
      font-size: 28px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.2;
    }

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

    @media (max-width: 575.98px) {
      .category-hero h1 {
        font-size: 24px;
      }
      .category-hero .lead {
        font-size: 15px;
      }
      .hero-stat-value {
        font-size: 22px;
      }
      .hero-stats {
        gap: 16px 24px;
      }
    }

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

    .ranking-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-2px);
    }

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

    .ranking-card-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(20,42,68,0) 40%, rgba(20,42,68,0.55) 100%);
    }

    .ranking-card-body {
      padding: 20px 20px 18px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .ranking-card-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      margin: 0 0 8px 0;
      line-height: 1.4;
    }

    .ranking-card-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 16px;
      flex: 1;
    }

    .ranking-card-link {
      font-size: 14px;
      font-weight: 500;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .ranking-card-link:hover {
      color: var(--primary-hover);
      text-decoration: none;
    }

    /* ========== Hot News ========== */
    .hot-news {
      background-color: #FFFFFF;
    }

    .news-list-item {
      display: flex;
      gap: 16px;
      padding: 16px 0;
      border-bottom: 1px solid var(--border);
      transition: var(--transition);
    }

    .news-list-item:hover {
      background-color: #F8FAFD;
    }

    .news-list-thumb {
      width: 100px;
      height: 70px;
      border-radius: 4px;
      background-size: cover;
      background-position: center;
      flex-shrink: 0;
    }

    .news-list-content {
      flex: 1;
    }

    .news-list-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      margin: 0 0 4px 0;
      line-height: 1.5;
    }

    .news-list-title a {
      color: inherit;
      text-decoration: none;
    }

    .news-list-title a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    .news-list-summary {
      font-size: 13px;
      color: var(--text-secondary);
      margin: 0;
    }

    .news-side-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 8px;
    }

    .news-tag {
      display: inline-block;
      background: #EDF2F9;
      color: var(--text-secondary);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      transition: var(--transition);
    }

    .news-tag:hover {
      background: var(--primary);
      color: #fff;
      text-decoration: none;
    }

    /* ========== Data Tool ========== */
    .data-tool-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      padding: 28px;
    }

    .data-tool-form {
      display: grid;
      grid-template-columns: repeat(3, 1fr) auto;
      gap: 16px;
      align-items: end;
    }

    .data-tool-form .form-label {
      font-size: 13px;
      font-weight: 500;
      color: var(--text-primary);
      margin-bottom: 6px;
    }

    .data-tool-form .form-select,
    .data-tool-form .form-control {
      border: 1px solid var(--border-dark);
      border-radius: 4px;
      font-size: 14px;
      padding: 8px 12px;
      background-color: #FFFFFF;
      color: var(--text-primary);
      transition: var(--transition);
    }

    .data-tool-form .form-select:focus,
    .data-tool-form .form-control:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 0 2px rgba(46,111,191,0.12);
    }

    .btn-primary-custom {
      background-color: var(--primary);
      color: #FFFFFF;
      border: none;
      border-radius: 6px;
      padding: 9px 22px;
      font-size: 14px;
      font-weight: 500;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary-custom:hover {
      background-color: var(--primary-hover);
      color: #FFFFFF;
      text-decoration: none;
      transform: translateY(1px);
    }

    .btn-secondary-custom {
      background-color: #FFFFFF;
      color: var(--primary);
      border: 1px solid var(--primary);
      border-radius: 6px;
      padding: 8px 20px;
      font-size: 14px;
      font-weight: 500;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-secondary-custom:hover {
      background-color: #EDF2F9;
      text-decoration: none;
      color: var(--primary-hover);
    }

    @media (max-width: 991.98px) {
      .data-tool-form {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 575.98px) {
      .data-tool-form {
        grid-template-columns: 1fr;
      }
      .data-tool-card {
        padding: 20px;
      }
    }

    /* ========== Data Note ========== */
    .data-note-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px 32px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .data-note-item {
      flex: 1 1 220px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    .data-note-item i {
      color: var(--accent);
      font-size: 18px;
      margin-top: 2px;
    }

    /* ========== FAQ ========== */
    .accordion-custom .accordion-item {
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      background: var(--bg-card);
    }

    .accordion-custom .accordion-button {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      background-color: #FFFFFF;
      padding: 16px 20px;
      box-shadow: none;
      border: none;
    }

    .accordion-custom .accordion-button:not(.collapsed) {
      background-color: #F5F8FC;
      color: var(--primary);
      box-shadow: none;
    }

    .accordion-custom .accordion-button:focus {
      box-shadow: 0 0 0 2px rgba(46,111,191,0.12);
    }

    .accordion-custom .accordion-body {
      font-size: 14px;
      color: var(--text-secondary);
      padding: 16px 20px 20px;
      line-height: 1.75;
      border-top: 1px solid var(--border);
    }

    /* ========== Subscribe CTA ========== */
    .subscribe-cta {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border);
    }

    .subscribe-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      padding: 28px 32px;
      background: #EDF2F9;
      border-radius: var(--radius);
    }

    .subscribe-info h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 6px 0;
    }

    .subscribe-info p {
      font-size: 14px;
      color: var(--text-secondary);
      margin: 0;
    }

    .subscribe-form {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .subscribe-form input[type="email"] {
      min-width: 240px;
      padding: 9px 14px;
      border: 1px solid var(--border-dark);
      border-radius: 6px;
      font-size: 14px;
      background: #FFFFFF;
      color: var(--text-primary);
    }

    .subscribe-form input:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 0 2px rgba(46,111,191,0.12);
    }

    @media (max-width: 767.98px) {
      .subscribe-card {
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
      }
      .subscribe-form input[type="email"] {
        min-width: 100%;
      }
    }

    /* ========== Footer ========== */
    .footer {
      background-color: var(--footer-bg);
      color: var(--footer-text);
      padding: 48px 0 24px;
    }

    .footer .container-custom {
      padding-left: 32px;
      padding-right: 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 32px;
      margin-bottom: 32px;
    }

    .footer-brand h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--footer-heading);
      margin: 0 0 12px 0;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.75;
      margin: 0;
      color: var(--footer-text);
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--footer-heading);
      margin: 0 0 14px 0;
    }

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

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

    .footer-col ul li a {
      font-size: 13px;
      color: var(--footer-text);
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-col ul li a:hover {
      color: #FFFFFF;
      text-decoration: underline;
    }

    .footer-subscribe {
      display: flex;
      gap: 8px;
    }

    .footer-subscribe input {
      flex: 1;
      padding: 8px 12px;
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 4px;
      background: rgba(255,255,255,0.08);
      color: #FFFFFF;
      font-size: 13px;
    }

    .footer-subscribe input::placeholder {
      color: rgba(255,255,255,0.55);
    }

    .footer-subscribe input:focus {
      border-color: rgba(255,255,255,0.6);
      outline: none;
    }

    .footer-subscribe button {
      background: var(--primary);
      color: #FFFFFF;
      border: none;
      border-radius: 4px;
      padding: 8px 16px;
      font-size: 13px;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .footer-subscribe button:hover {
      background: var(--primary-hover);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.15);
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
      color: rgba(255,255,255,0.65);
    }

    .footer-bottom-links {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-bottom a {
      color: rgba(255,255,255,0.65);
      text-decoration: none;
    }

    .footer-bottom a:hover {
      color: #FFFFFF;
      text-decoration: underline;
    }

    .divider-dot {
      width: 3px;
      height: 3px;
      border-radius: 50%;
      background: rgba(255,255,255,0.35);
      display: inline-block;
    }

    @media (max-width: 991.98px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }
      .footer .container-custom {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    @media (max-width: 575.98px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    /* ========== Utility ========== */
    .bg-white {
      background-color: #FFFFFF;
    }

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

    .fw-semibold {
      font-weight: 600;
    }

    .fs-14 {
      font-size: 14px;
    }

    .fs-13 {
      font-size: 13px;
    }

/* roulang page: category4 */
:root {
            --bg-page: #F4F7FB;
            --bg-card: #FFFFFF;
            --primary: #1F4E8C;
            --primary-hover: #1A4379;
            --secondary: #2E6FBF;
            --secondary-hover: #2760A6;
            --accent: #129B6C;
            --accent-light: #E6F7F0;
            --warning: #D97706;
            --warning-light: #FEF3E2;
            --text-primary: #142A44;
            --text-secondary: #5B6B81;
            --border: #E3EAF3;
            --border-dark: #C9D6E5;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 80, 0.04);
            --shadow-md: 0 8px 24px rgba(20, 40, 80, 0.06);
            --shadow-lg: 0 14px 34px rgba(20, 40, 80, 0.10);
            --transition: all 0.22s ease;
            --nav-top-bg: #1E3A5F;
            --nav-top-text: #D5E0EC;
            --nav-main-bg: #FFFFFF;
            --footer-bg: #1E3A5F;
            --footer-text: #C7D5E6;
            --footer-heading: #FFFFFF;
            --container-max: 1180px;
            --section-pad: 72px;
            --section-pad-mobile: 44px;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-numeric: "SF Mono", "Segoe UI", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

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

        /* ========== Section Base ========== */
        .section {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
        }

        @media (max-width: 576px) {
            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
        }

        .section-alt {
            background-color: #EDF2F9;
        }
        .section-white {
            background-color: #FFFFFF;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }
        .section-label::before {
            content: "";
            width: 4px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 14px 0;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 720px;
        }

        .section-header-center {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 576px) {
            .section-title {
                font-size: 21px;
            }
            .section-desc {
                font-size: 14px;
            }
            .section-header-center {
                margin-bottom: 24px;
            }
        }

        /* ========== Top Bar ========== */
        .topbar {
            background-color: var(--nav-top-bg);
            color: var(--nav-top-text);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.02em;
        }
        .topbar .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .topbar-brand-mini {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 13px;
        }
        .topbar-brand-mini:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .topbar-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .topbar-links a {
            color: var(--nav-top-text);
            font-size: 13px;
            transition: var(--transition);
        }
        .topbar-links a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }

        /* ========== Main Nav ========== */
        .mainnav-wrapper {
            background-color: var(--nav-main-bg);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(20, 40, 80, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .mainnav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .mainnav-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .mainnav-logo span {
            color: var(--secondary);
        }
        .mainnav-logo:hover {
            text-decoration: none;
            color: var(--primary-hover);
        }
        .mainnav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }
        .mainnav-menu li {
            margin: 0;
        }
        .mainnav-menu a {
            display: block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }
        .mainnav-menu a:hover {
            color: var(--primary);
            background-color: #F0F4FA;
            text-decoration: none;
        }
        .mainnav-menu a.active {
            color: var(--primary);
            background-color: #E8EEF7;
            font-weight: 600;
        }
        .mainnav-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-tool {
            display: inline-block;
            padding: 7px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-tool:hover {
            background-color: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            text-decoration: none;
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            background-color: #F0F4FA;
        }

        @media (max-width: 991px) {
            .mainnav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 30px rgba(20, 40, 80, 0.08);
                padding: 10px 0;
                display: none;
                z-index: 99;
            }
            .mainnav-menu.open {
                display: flex;
            }
            .mainnav-menu a {
                padding: 12px 20px;
                border-radius: 0;
                font-size: 15px;
            }
            .mainnav-tools {
                display: none;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .mainnav-wrapper {
                position: sticky;
            }
            .mainnav {
                flex-wrap: wrap;
                min-height: 60px;
                position: relative;
            }
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            padding: 18px 0;
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb-custom .bi-chevron-right {
            font-size: 10px;
            color: var(--border-dark);
        }

        /* ========== Category Hero ========== */
        .category-hero {
            padding: 48px 0 40px;
            background-color: #FFFFFF;
            border-bottom: 1px solid var(--border);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px 0;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .category-hero .lead {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 24px 0;
            max-width: 780px;
        }
        .category-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .stat-item .stat-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-numeric);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        @media (max-width: 576px) {
            .category-hero h1 {
                font-size: 25px;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-stats {
                gap: 12px 24px;
            }
            .stat-item .stat-value {
                font-size: 18px;
            }
        }

        /* ========== Cards ========== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            height: 100%;
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-dark);
        }
        .card-custom .card-body {
            padding: 22px 22px 24px;
        }
        .card-custom .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
            background-color: var(--accent-light);
            color: var(--accent);
        }
        .card-custom .card-icon.blue {
            background-color: #E8EEF7;
            color: var(--primary);
        }
        .card-custom .card-icon.amber {
            background-color: var(--warning-light);
            color: var(--warning);
        }
        .card-custom h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px 0;
            line-height: 1.45;
        }
        .card-custom p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        /* ========== Safety Strip ========== */
        .safety-strip {
            background-color: #EDF2F9;
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
        }
        .safety-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
        }
        .safety-item .safety-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }
        .safety-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px 0;
        }
        .safety-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== Rule List ========== */
        .rule-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .rule-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.75;
        }
        .rule-list li:last-child {
            border-bottom: none;
        }
        .rule-list .rule-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-numeric);
        }
        .rule-list .rule-text strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: #FFFFFF;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-custom .accordion-item:hover {
            box-shadow: var(--shadow-md);
        }
        .accordion-custom .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 18px 20px;
            background-color: #FFFFFF;
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background-color: #F0F4FA;
            color: var(--primary);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 2px var(--secondary);
            border-radius: var(--radius);
        }
        .accordion-custom .accordion-button::after {
            filter: brightness(0.6);
        }
        .accordion-custom .accordion-body {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 16px 20px 20px;
            line-height: 1.85;
        }

        /* ========== CTA ========== */
        .cta-box {
            background-color: var(--primary);
            color: #FFFFFF;
            border-radius: var(--radius);
            padding: 40px 36px;
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px 0;
            line-height: 1.4;
        }
        .cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px 0;
            line-height: 1.75;
            max-width: 560px;
        }
        .btn-light-custom {
            display: inline-block;
            padding: 10px 26px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background-color: #FFFFFF;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
        }
        .btn-light-custom:hover {
            background-color: #F0F4FA;
            color: var(--primary-hover);
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-outline-light-custom {
            display: inline-block;
            padding: 10px 26px;
            font-size: 14px;
            font-weight: 500;
            color: #FFFFFF;
            background-color: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .btn-outline-light-custom:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            text-decoration: none;
            border-color: #FFFFFF;
        }

        @media (max-width: 576px) {
            .cta-box {
                padding: 28px 20px;
            }
            .cta-box h2 {
                font-size: 20px;
            }
        }

        /* ========== Image Card ========== */
        .img-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            height: 100%;
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .img-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .img-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .img-card .img-card-body {
            padding: 18px 20px 20px;
        }
        .img-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px 0;
            line-height: 1.45;
        }
        .img-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== Footer ========== */
        .footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 56px 0 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--footer-heading);
            margin: 0 0 12px 0;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--footer-text);
            line-height: 1.8;
            margin: 0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--footer-heading);
            margin: 0 0 14px 0;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--footer-text);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 8px 12px;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            background-color: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            min-width: 0;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-subscribe input:focus {
            outline: 2px solid var(--secondary);
            background-color: rgba(255, 255, 255, 0.12);
        }
        .footer-subscribe button {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            background-color: var(--secondary);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background-color: var(--secondary-hover);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px 16px;
            padding: 16px 0 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }
        .divider-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.35);
            display: inline-block;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer {
                padding-top: 40px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --bg-page: #F4F7FB;
            --bg-card: #FFFFFF;
            --primary: #1F4E8C;
            --primary-hover: #1A4379;
            --secondary: #2E6FBF;
            --secondary-hover: #2760A6;
            --accent: #129B6C;
            --accent-light: #E6F7F0;
            --warning: #D97706;
            --warning-light: #FEF3E2;
            --text-primary: #142A44;
            --text-secondary: #5B6B81;
            --border: #E3EAF3;
            --border-dark: #C9D6E5;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 80, 0.04);
            --shadow-md: 0 8px 24px rgba(20, 40, 80, 0.06);
            --shadow-lg: 0 14px 34px rgba(20, 40, 80, 0.10);
            --transition: all 0.22s ease;
            --nav-top-bg: #1E3A5F;
            --nav-top-text: #D5E0EC;
            --nav-main-bg: #FFFFFF;
            --footer-bg: #1E3A5F;
            --footer-text: #C7D5E6;
            --footer-heading: #FFFFFF;
            --container-max: 1180px;
            --section-pad: 72px;
            --section-pad-mobile: 44px;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-numeric: "SF Mono", "Segoe UI", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }
        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        .section {
            padding-top: var(--section-pad);
            padding-bottom: var(--section-pad);
        }
        .section-alt {
            background-color: #EDF2F9;
        }
        .section-white {
            background-color: #FFFFFF;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }
        .section-label::before {
            content: "";
            width: 4px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 14px 0;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 720px;
        }
        .section-header-center {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-header-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        /* ========== Topbar ========== */
        .topbar {
            background-color: var(--nav-top-bg);
            color: var(--nav-top-text);
            font-size: 13px;
            padding: 8px 0;
            letter-spacing: 0.02em;
        }
        .topbar .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .topbar-brand-mini {
            color: #FFFFFF;
            font-weight: 600;
            font-size: 13px;
        }
        .topbar-brand-mini:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .topbar-tools {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .topbar-tools a {
            color: var(--nav-top-text);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .topbar-tools a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        /* ========== Main Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: var(--nav-main-bg);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(20, 40, 80, 0.04);
        }
        .mainnav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 12px 0;
            flex-wrap: wrap;
            position: relative;
        }
        .mainnav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .mainnav-logo span {
            color: var(--accent);
        }
        .mainnav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }
        .mainnav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
        }
        .mainnav-menu li a {
            display: inline-block;
            padding: 6px 2px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .mainnav-menu li a:hover {
            color: var(--primary);
            text-decoration: none;
            border-bottom-color: var(--primary);
        }
        .mainnav-menu li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }
        .mainnav-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-tool {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 7px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #FFFFFF;
            border: 1px solid var(--primary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-tool:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-tool-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-tool-outline:hover {
            background: var(--primary);
            color: #FFFFFF;
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            font-size: 20px;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            background: #EDF2F9;
        }
        /* ========== Breadcrumb ========== */
        .breadcrumb-nav {
            padding: 20px 0 0;
            background: transparent;
        }
        .breadcrumb-nav .breadcrumb {
            margin-bottom: 0;
            font-size: 13px;
            --bs-breadcrumb-divider: '›';
        }
        .breadcrumb-nav .breadcrumb-item a {
            color: var(--text-secondary);
        }
        .breadcrumb-nav .breadcrumb-item a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb-nav .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
        }
        /* ========== Page Header ========== */
        .page-header {
            padding-top: 32px;
            padding-bottom: 40px;
        }
        .page-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0 0 12px 0;
        }
        .page-header .page-lead {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 780px;
            margin-bottom: 24px;
        }
        .stats-summary {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 8px;
        }
        .stat-summary-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 20px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-sm);
        }
        .stat-summary-item .stat-number {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-numeric);
            line-height: 1.2;
        }
        .stat-summary-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        /* ========== News List Section ========== */
        .news-list-section .news-main-col {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }
        .news-item-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-item-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-item-card .news-thumb {
            flex: 0 0 240px;
            max-width: 240px;
            overflow: hidden;
        }
        .news-item-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: var(--transition);
        }
        .news-item-card:hover .news-thumb img {
            transform: scale(1.03);
        }
        .news-item-card .news-body {
            flex: 1;
            padding: 18px 20px 16px 4px;
            display: flex;
            flex-direction: column;
        }
        .news-item-card .news-category {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            background: var(--accent-light);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .news-item-card .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin: 0 0 8px 0;
        }
        .news-item-card .news-title a {
            color: var(--text-primary);
        }
        .news-item-card .news-title a:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .news-item-card .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 12px 0;
            flex: 1;
        }
        .news-item-card .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .news-item-card .news-meta i {
            font-size: 13px;
            margin-right: 4px;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 14px 0;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-card .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-list a {
            font-size: 13px;
            color: var(--text-secondary);
            background: #F4F7FB;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 4px 12px;
            transition: var(--transition);
        }
        .sidebar-card .tag-list a:hover {
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
            background: #EDF2F9;
        }
        .sidebar-card .hot-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-card .hot-list li {
            padding: 9px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-primary);
        }
        .sidebar-card .hot-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-card .hot-list li .hot-index {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #EDF2F9;
            color: var(--text-secondary);
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
        }
        .sidebar-card .hot-list li .hot-index.top-1 {
            background: var(--warning-light);
            color: var(--warning);
        }
        .sidebar-card .hot-list li .hot-index.top-2 {
            background: #E8EEF6;
            color: var(--primary);
        }
        .sidebar-card .hot-list li .hot-index.top-3 {
            background: #F0E6D8;
            color: #8B5E2A;
        }
        /* ========== Hot News Strip ========== */
        .hot-news-strip .hot-news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .hot-news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: default;
        }
        .hot-news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .hot-news-card .hot-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--accent-light);
            color: var(--accent);
        }
        .hot-news-card .hot-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px 0;
        }
        .hot-news-card .hot-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        /* ========== Query Card ========== */
        .query-card-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow-sm);
        }
        .query-card-wrapper .query-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .query-card-wrapper .query-title i {
            color: var(--secondary);
        }
        .query-form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: flex-end;
        }
        .query-form-row .form-group-custom {
            flex: 1;
            min-width: 160px;
        }
        .query-form-row .form-group-custom label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        .query-form-row .form-control-custom {
            width: 100%;
            padding: 8px 12px;
            font-size: 14px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .query-form-row .form-control-custom:focus {
            border-color: var(--secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(46, 111, 191, 0.12);
        }
        .query-form-row .btn-query {
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 500;
            border: none;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #FFFFFF;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .query-form-row .btn-query:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }
        .query-result-note {
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .query-result-note i {
            color: var(--accent);
        }
        /* ========== Usage Note ========== */
        .usage-note-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .usage-note-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            box-shadow: var(--shadow-sm);
        }
        .usage-note-card .note-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            background: #EDF2F9;
            color: var(--primary);
        }
        .usage-note-card .note-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 5px 0;
        }
        .usage-note-card .note-body p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }
        /* ========== FAQ ========== */
        .faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--bg-card);
        }
        .faq-section .accordion-button {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--bg-card);
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: #F4F7FB;
            color: var(--primary);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus {
            box-shadow: none;
            border-color: var(--secondary);
        }
        .faq-section .accordion-button::after {
            background-size: 14px;
            transition: var(--transition);
        }
        .faq-section .accordion-body {
            padding: 16px 20px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: #FFFFFF;
        }
        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, #1F4E8C 0%, #1E3A5F 100%);
            border-radius: 10px;
            padding: 44px 48px;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }
        .cta-section .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 8px 0;
        }
        .cta-section .cta-text p {
            font-size: 14px;
            color: #C7D5E6;
            margin: 0;
            max-width: 480px;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cta-section .btn-cta-primary {
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .cta-section .btn-cta-primary:hover {
            background: #E8EEF6;
            transform: translateY(-1px);
        }
        .cta-section .btn-cta-secondary {
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-sm);
            background: transparent;
            color: #FFFFFF;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .cta-section .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
        }
        /* ========== Footer ========== */
        .footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding-top: 56px;
            padding-bottom: 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            padding-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--footer-heading);
            margin: 0 0 12px 0;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--footer-text);
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--footer-heading);
            margin: 0 0 14px 0;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--footer-text);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-subscribe input {
            flex: 1;
            min-width: 160px;
            padding: 8px 12px;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            transition: var(--transition);
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-subscribe input:focus {
            border-color: rgba(255, 255, 255, 0.5);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
        }
        .footer-subscribe button {
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border: none;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: #FFFFFF;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: #0E8B5F;
            transform: translateY(-1px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px 20px;
            font-size: 12px;
            color: rgba(200, 215, 235, 0.75);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(200, 215, 235, 0.85);
            font-size: 12px;
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
            text-decoration: none;
        }
        .footer-bottom .divider-dot {
            width: 3px;
            height: 3px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            display: inline-block;
        }
        /* ========== Responsive ========== */
        @media (max-width: 1199.98px) {
            .container-custom {
                padding-left: 24px;
                padding-right: 24px;
            }
            .stats-summary {
                grid-template-columns: repeat(4, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 991.98px) {
            .mainnav-menu {
                gap: 18px;
            }
            .news-item-card .news-thumb {
                flex: 0 0 180px;
                max-width: 180px;
            }
            .hot-news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 34px 28px;
            }
            .stats-summary {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767.98px) {
            .section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .navbar-toggler-custom {
                display: inline-flex;
            }
            .mainnav-menu {
                display: none;
                flex-direction: column;
                align-items: stretch;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--nav-main-bg);
                border: 1px solid var(--border);
                border-radius: 0 0 var(--radius) var(--radius);
                box-shadow: var(--shadow-lg);
                padding: 12px 16px;
                gap: 2px;
                z-index: 1050;
            }
            .mainnav-menu.show {
                display: flex;
            }
            .mainnav-menu li a {
                display: block;
                padding: 10px 8px;
                font-size: 15px;
                border-bottom: 1px dashed var(--border);
                border-radius: 0;
            }
            .mainnav-menu li a.active {
                border-bottom-color: var(--primary);
                background: #F4F7FB;
            }
            .mainnav-tools {
                display: none;
            }
            .mainnav {
                gap: 12px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .page-header .page-lead {
                font-size: 14px;
            }
            .news-item-card {
                flex-direction: column;
            }
            .news-item-card .news-thumb {
                flex: none;
                max-width: 100%;
                width: 100%;
                aspect-ratio: 16/9;
            }
            .news-item-card .news-body {
                padding: 16px 18px 16px 18px;
            }
            .hot-news-grid {
                grid-template-columns: 1fr;
            }
            .usage-note-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .cta-section .cta-text h2 {
                font-size: 20px;
            }
            .query-card-wrapper {
                padding: 20px 18px;
            }
            .query-form-row {
                flex-direction: column;
                align-items: stretch;
            }
            .query-form-row .form-group-custom {
                min-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .stats-summary {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-summary-item {
                padding: 12px 14px;
            }
            .stat-summary-item .stat-number {
                font-size: 20px;
            }
        }
        @media (max-width: 575.98px) {
            .section-title {
                font-size: 21px;
            }
            .page-header h1 {
                font-size: 22px;
            }
            .stats-summary {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-summary-item {
                padding: 10px 12px;
            }
            .stat-summary-item .stat-number {
                font-size: 18px;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                width: 100%;
                text-align: center;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}