/* roulang page: index */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --font-family-num: Inter, "Segoe UI", Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Navigation ===== */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .navbar-brand-logo:hover {
            color: var(--brand-primary);
        }
        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }
        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .navbar-custom .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }

        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
        }

        /* ===== Hero ===== */
        .hero-kv {
            position: relative;
            min-height: 520px;
            background-image: linear-gradient(135deg, rgba(22, 35, 58, 0.82) 0%, rgba(22, 35, 58, 0.55) 55%, rgba(62, 123, 250, 0.45) 100%), url('/assets/images/fd2543d15aa19ea9.webp');
            background-size: cover;
            background-position: center;
            border-radius: 0 0 24px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 60px 24px;
            color: #fff;
            margin-bottom: 0;
            overflow: hidden;
        }
        .hero-kv::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(180deg, transparent 0%, rgba(22, 35, 58, 0.35) 100%);
            pointer-events: none;
        }
        .hero-kv-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-countdown-bar {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.28);
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #fff;
            margin-bottom: 28px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .hero-countdown-bar .countdown-num {
            font-family: var(--font-family-num);
            font-weight: 700;
            font-size: 1.2rem;
            background: var(--accent-warm);
            color: #16233A;
            border-radius: 6px;
            padding: 2px 10px;
            letter-spacing: 0.05em;
        }
        .hero-kv h1 {
            font-size: clamp(2.2rem, 4vw, 3.1rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
        }
        .hero-kv .hero-desc {
            font-size: 1.02rem;
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 32px;
            color: rgba(255, 255, 255, 0.92);
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
        }
        .hero-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(62, 123, 250, 0.35);
        }
        .btn-hero-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(62, 123, 250, 0.45);
        }
        .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: var(--radius-btn);
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 500;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all var(--transition-base);
        }
        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 767.98px) {
            .hero-kv {
                min-height: 460px;
                padding: 40px 18px;
                border-radius: 0 0 16px 16px;
            }
            .hero-kv h1 {
                font-size: 1.8rem;
            }
            .hero-kv .hero-desc {
                font-size: 0.92rem;
            }
            .hero-btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                padding: 12px 20px;
                font-size: 0.95rem;
            }
            .hero-countdown-bar {
                font-size: 0.8rem;
                padding: 8px 16px;
                gap: 8px;
            }
            .hero-countdown-bar .countdown-num {
                font-size: 1rem;
                padding: 2px 8px;
            }
        }

        /* ===== Pill Navigation ===== */
        .pill-nav-section {
            background: transparent;
            padding: 20px 0 8px;
            margin-top: -18px;
            position: relative;
            z-index: 5;
        }
        .pill-nav-container {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            padding: 4px 0 12px;
            flex-wrap: nowrap;
        }
        .pill-nav-container::-webkit-scrollbar {
            height: 4px;
        }
        .pill-nav-container::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        .pill-nav-item {
            flex-shrink: 0;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: #fff;
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-size: 0.88rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
        }
        .pill-nav-item:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .pill-nav-item.active {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px var(--shadow-focus);
        }

        /* ===== Section Base ===== */
        .section-block {
            padding: var(--section-padding);
            background: transparent;
        }
        .section-block-alt {
            background: var(--base-bg);
        }
        .section-block-white {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-primary);
            background: var(--brand-light);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 0.98rem;
            line-height: 1.75;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 40px;
        }
        .section-title-center {
            text-align: center;
        }
        .section-title-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 575.98px) {
            .section-block {
                padding: var(--section-padding-mobile);
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.9rem;
                margin-bottom: 28px;
            }
        }

        /* ===== Brand Intro ===== */
        .brand-intro-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            border-left: 4px solid var(--brand-primary);
        }
        .brand-intro-card p {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-primary);
            margin-bottom: 0;
        }

        @media (max-width: 575.98px) {
            .brand-intro-card {
                padding: 24px 18px;
                border-left: 3px solid var(--brand-primary);
            }
        }

        /* ===== KPI ===== */
        .kpi-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .kpi-item {
            padding: 28px 20px;
            text-align: center;
            border-right: 1px solid var(--border);
            transition: background var(--transition-base);
        }
        .kpi-item:last-child {
            border-right: none;
        }
        .kpi-item:hover {
            background: var(--brand-light);
        }
        .kpi-number {
            font-family: var(--font-family-num);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
            display: block;
        }
        .kpi-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 6px;
            display: block;
        }

        @media (max-width: 991.98px) {
            .kpi-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 1px;
                background: var(--border);
            }
            .kpi-item {
                background: var(--card-bg);
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .kpi-item:nth-child(odd) {
                border-right: 1px solid var(--border);
            }
            .kpi-item:nth-last-child(-n+2) {
                border-bottom: none;
            }
        }
        @media (max-width: 575.98px) {
            .kpi-row {
                grid-template-columns: 1fr 1fr;
                gap: 1px;
            }
            .kpi-number {
                font-size: 1.7rem;
            }
            .kpi-item {
                padding: 20px 14px;
            }
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .card-custom {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 24px 22px;
            transition: all var(--transition-base);
        }
        .card-custom:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--brand-light);
        }
        .card-custom .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .card-custom .card-title {
            font-size: 1.12rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-custom .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .card-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767.98px) {
            .card-grid,
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Scenario Cards ===== */
        .scenario-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 28px 22px;
            text-align: left;
            transition: all var(--transition-base);
            height: 100%;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .scenario-card .scenario-num {
            font-family: var(--font-family-num);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--brand-primary);
            background: var(--brand-light);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            display: inline-block;
            margin-bottom: 14px;
        }
        .scenario-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .scenario-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Compare Table ===== */
        .compare-table-wrapper {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .compare-table th {
            background: var(--base-bg);
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .compare-hl {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .compare-table .compare-check {
            color: var(--success-green);
            font-weight: 600;
        }
        .compare-table .compare-cross {
            color: #C0392B;
            font-weight: 600;
        }
        @media (max-width: 575.98px) {
            .compare-table th,
            .compare-table td {
                padding: 12px 10px;
                font-size: 0.82rem;
            }
        }

        /* ===== Demo / Screenshot ===== */
        .demo-panel {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .demo-panel .demo-main-img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .demo-thumbs {
            display: flex;
            gap: 12px;
            padding: 16px;
            flex-wrap: wrap;
        }
        .demo-thumb {
            width: 70px;
            height: 50px;
            border-radius: 6px;
            object-fit: cover;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all var(--transition-base);
            opacity: 0.7;
        }
        .demo-thumb:hover,
        .demo-thumb.active {
            border-color: var(--brand-primary);
            opacity: 1;
        }
        @media (max-width: 767.98px) {
            .demo-panel .demo-main-img {
                height: 220px;
            }
            .demo-thumb {
                width: 56px;
                height: 40px;
            }
        }

        /* ===== Timeline / Milestone ===== */
        .milestone-timeline {
            position: relative;
            padding-left: 32px;
        }
        .milestone-timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--brand-light);
            border-radius: 1px;
        }
        .milestone-item {
            position: relative;
            padding-bottom: 28px;
        }
        .milestone-item::before {
            content: '';
            position: absolute;
            left: -27px;
            top: 4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--brand-primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--brand-light);
        }
        .milestone-item:last-child {
            padding-bottom: 0;
        }
        .milestone-year {
            font-family: var(--font-family-num);
            font-weight: 700;
            color: var(--brand-primary);
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .milestone-title {
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .milestone-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== News List ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
        }
        .news-list-item {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 18px 20px;
            margin-bottom: 18px;
            transition: all var(--transition-base);
        }
        .news-list-item:last-child {
            margin-bottom: 0;
        }
        .news-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .news-thumb {
            width: 120px;
            height: 90px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
        }
        .news-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            margin-bottom: 6px;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--brand-primary);
            background: none;
            border: none;
            padding: 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .btn-read-more:hover {
            color: var(--brand-primary-hover);
            gap: 10px;
        }
        .hot-tags-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 24px 20px;
        }
        .hot-tags-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .hot-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--base-bg);
            border: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0 6px 8px 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .hot-tag:hover {
            background: var(--brand-light);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        @media (max-width: 991.98px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .news-list-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 14px;
            }
            .news-thumb {
                width: 100%;
                height: 150px;
            }
        }

        /* ===== Pricing ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .pricing-card.featured {
            border: 2px solid var(--brand-primary);
            box-shadow: 0 4px 20px rgba(62, 123, 250, 0.18);
            transform: translateY(-8px);
        }
        .pricing-card.featured:hover {
            transform: translateY(-12px);
        }
        .pricing-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent-warm);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .pricing-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }
        .pricing-price {
            font-family: var(--font-family-num);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .pricing-price .currency {
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .pricing-period {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            flex: 1;
        }
        .pricing-features li {
            padding: 6px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--success-green);
            font-size: 0.75rem;
        }
        .btn-pricing {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-size: 0.95rem;
            font-weight: 550;
            text-align: center;
            transition: all var(--transition-base);
            width: 100%;
        }
        .btn-pricing:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .pricing-card.featured .btn-pricing {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
        }
        .pricing-card.featured .btn-pricing:hover {
            background: var(--brand-primary-hover);
        }

        @media (max-width: 991.98px) {
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                transform: translateY(0);
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 22px 20px;
            transition: all var(--transition-base);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .testimonial-stars {
            color: var(--accent-warm);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }
        .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-primary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .testimonial-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .testimonial-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .quote-carousel {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 36px 32px;
            text-align: center;
        }
        .quote-carousel blockquote {
            font-size: 1.2rem;
            line-height: 1.75;
            color: var(--text-primary);
            font-weight: 500;
            margin-bottom: 20px;
            font-style: normal;
        }
        .quote-carousel .quote-author {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .quote-nav {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 18px;
        }
        .quote-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--border);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            padding: 0;
        }
        .quote-dot.active {
            background: var(--brand-primary);
            width: 26px;
            border-radius: var(--radius-pill);
        }

        @media (max-width: 991.98px) {
            .testimonial-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .quote-carousel blockquote {
                font-size: 1rem;
            }
        }

        /* ===== Success Cases ===== */
        .case-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .case-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .case-body {
            padding: 18px 18px 20px;
        }
        .case-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .case-text {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== Security / Guarantee ===== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .guarantee-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .guarantee-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .guarantee-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1.4rem;
            margin: 0 auto 14px;
        }
        .guarantee-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .guarantee-text {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 991.98px) {
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: none;
        }
        .faq-accordion .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: #fff;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: all var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: #F3F7FE;
            color: var(--brand-primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            filter: brightness(0) saturate(100%) invert(45%) sepia(90%) saturate(2000%) hue-rotate(210deg);
            transition: transform var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-body {
            font-size: 0.92rem;
            line-height: 1.75;
            color: var(--text-muted);
            padding: 16px 20px 20px;
            background: #FBFCFE;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: linear-gradient(120deg, #F0F5FF 0%, #E3EDFE 45%, #F7F9FC 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            border: 1px solid var(--brand-light);
        }
        .cta-banner h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .cta-banner p {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 13px 32px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(62, 123, 250, 0.3);
        }
        .btn-cta-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(62, 123, 250, 0.4);
        }
        .btn-cta-secondary {
            background: #fff;
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 13px 32px;
            font-size: 1rem;
            font-weight: 500;
            transition: all var(--transition-base);
        }
        .btn-cta-secondary:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
            transform: translateY(-2px);
        }
        @media (max-width: 575.98px) {
            .cta-banner {
                padding: 28px 18px;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-cta-primary,
            .btn-cta-secondary {
                width: 100%;
                padding: 12px 20px;
                font-size: 0.95rem;
            }
        }

        /* ===== Footer Pre-Brand ===== */
        .footer-pre-brand {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .footer-pre-brand-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-pre-brand .slogan {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .btn-brand-sm {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            transition: all var(--transition-base);
        }
        .btn-brand-sm:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        @media (max-width: 575.98px) {
            .footer-pre-brand-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Footer ===== */
        .footer-main {
            background: #16233A;
            color: #fff;
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.86rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-contact {
            font-size: 0.86rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --font-family-num: Inter, "Segoe UI", Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Navigation ===== */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .navbar-brand-logo:hover {
            color: var(--brand-primary);
        }
        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }
        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .navbar-custom .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
        }

        /* ===== Breadcrumb & Category Header ===== */
        .category-header-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 28px 0 24px;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb-custom .separator {
            color: #C9D4E6;
            font-size: 0.7rem;
        }
        .breadcrumb-custom .current {
            color: var(--text-primary);
            font-weight: 500;
        }
        .category-header-title {
            font-size: clamp(1.6rem, 3.2vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .category-header-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Main article cards grid ===== */
        .guides-list-section {
            padding: var(--section-padding);
            background: var(--base-bg);
        }
        .section-heading-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-heading-row h2 {
            font-size: clamp(1.4rem, 2.4vw, 1.9rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
        }
        .section-heading-row .section-note {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: #D4DFF2;
        }
        .guide-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.04);
        }
        .guide-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .guide-card-meta .badge-tag {
            display: inline-block;
            background: var(--brand-light);
            color: var(--brand-primary);
            font-size: 0.72rem;
            font-weight: 550;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
        }
        .guide-card-title {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 10px;
            transition: color var(--transition-base);
        }
        .guide-card:hover .guide-card-title {
            color: var(--brand-primary);
        }
        .guide-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card-link {
            align-self: flex-start;
            font-size: 0.85rem;
            font-weight: 550;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
        }
        .guide-card-link:hover {
            color: var(--brand-primary-hover);
            gap: 10px;
        }

        /* ===== Tag cloud section ===== */
        .tag-cloud-section {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .tag-cloud-title {
            font-size: 1.3rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 20px;
        }
        .tag-cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-pill-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--base-bg);
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-base);
        }
        .tag-pill-link:hover {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        /* ===== Hot reads ranking ===== */
        .hot-reads-section {
            padding: var(--section-padding);
            background: var(--base-bg);
        }
        .hot-reads-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .hot-read-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .hot-read-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .hot-read-rank {
            font-family: var(--font-family-num);
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-primary);
            opacity: 0.3;
            line-height: 1;
            margin-bottom: 10px;
        }
        .hot-read-item:nth-child(1) .hot-read-rank {
            color: var(--accent-warm);
            opacity: 0.75;
        }
        .hot-read-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 6px;
        }
        .hot-read-views {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== Scenario cards ===== */
        .scenario-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border-top: 3px solid var(--brand-primary);
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .scenario-card .scenario-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: var(--brand-light);
            color: var(--brand-primary);
            border-radius: 10px;
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .scenario-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== Subscribe section ===== */
        .subscribe-section {
            padding: var(--section-padding);
            background: linear-gradient(135deg, var(--brand-light) 0%, #F0F4FE 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .subscribe-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            max-width: 860px;
            margin: 0 auto;
            border: 1px solid var(--border);
        }
        .subscribe-card h2 {
            font-size: 1.5rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .subscribe-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"],
        .subscribe-form input[type="text"] {
            flex: 1;
            min-width: 220px;
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: #fff;
            transition: all var(--transition-base);
        }
        .subscribe-form input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px var(--shadow-focus);
            outline: none;
        }
        .subscribe-form .btn-subscribe {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 0.9rem;
            font-weight: 550;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .subscribe-form .btn-subscribe:hover {
            background: var(--brand-primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== FAQ section ===== */
        .guide-faq-section {
            padding: var(--section-padding);
            background: var(--base-bg);
        }
        .guide-faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }
        .guide-faq-section .accordion-button {
            background: #fff;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
        }
        .guide-faq-section .accordion-button:not(.collapsed) {
            background: var(--brand-light);
            color: var(--text-primary);
            border-bottom: 1px solid var(--border);
        }
        .guide-faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-radius: 10px;
        }
        .guide-faq-section .accordion-button::after {
            color: var(--brand-primary);
        }
        .guide-faq-section .accordion-body {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding: 18px 20px;
            background: #FAFBFE;
        }

        /* ===== Related categories ===== */
        .related-categories-section {
            padding: 56px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-category-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-align: center;
        }
        .related-category-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: #D4DFF2;
        }
        .related-category-card .related-icon {
            font-size: 1.3rem;
            color: var(--brand-primary);
            margin-bottom: 10px;
        }
        .related-category-card .related-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .related-category-card .related-desc {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Footer ===== */
        .footer-main {
            background: #16233A;
            color: #F0F4FE;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            color: #C5D0E0;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: #C5D0E0;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact {
            font-size: 0.82rem;
            color: #C5D0E0;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: #A0B0C8;
        }
        .footer-bottom a {
            color: #A0B0C8;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hot-reads-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 40px 0;
            }
            .guides-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .hot-reads-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-card {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn-subscribe {
                width: 100%;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-grid > div:first-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 576px) {
            .hot-reads-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid > div:first-child {
                grid-column: span 1;
            }
            .category-header-section {
                padding: 20px 0 16px;
            }
            .guides-grid {
                gap: 16px;
            }
            .guide-card-img {
                height: 150px;
            }
            .section-heading-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --font-family-num: Inter, "Segoe UI", Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Navigation ===== */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .navbar-brand-logo:hover {
            color: var(--brand-primary);
        }
        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }
        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .navbar-custom .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }

        /* ===== 分类页 H1 区（非全屏 Hero） ===== */
        .category-hero-mini {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 48px 0 40px;
        }
        .breadcrumb-custom {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb-custom .sep {
            color: #C9D4E6;
            font-size: 0.7rem;
        }
        .breadcrumb-custom .current {
            color: var(--brand-primary);
            font-weight: 500;
        }
        .category-hero-mini h1 {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .category-hero-mini .hero-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .category-hero-mini .hero-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .category-hero-mini .hero-meta-row i {
            color: var(--brand-primary);
            margin-right: 4px;
        }

        /* ===== Section 通用 ===== */
        .section-main {
            padding: var(--section-padding);
        }
        .section-main-alt {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: clamp(1.4rem, 2.5vw, 1.85rem);
            font-weight: 650;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 640px;
        }
        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .section-header-row .section-title {
            margin-bottom: 0;
        }

        /* ===== 按钮 ===== */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-brand:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-brand:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .btn-sm-brand {
            padding: 6px 14px;
            font-size: 0.82rem;
            border-radius: 6px;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-sm-brand:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== 数据速览卡 ===== */
        .data-overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-overview-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .data-overview-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--brand-light);
        }
        .data-overview-card .data-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .data-overview-card .data-value {
            font-family: var(--font-family-num);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-overview-card .data-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .data-overview-card .data-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--success-green);
            margin-top: 8px;
        }
        .data-overview-card .data-trend.down {
            color: #E05B4D;
        }

        /* ===== 列表卡片 ===== */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--brand-light);
        }
        .data-card .card-img-wrap {
            height: 160px;
            overflow: hidden;
            position: relative;
        }
        .data-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .data-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .data-card .card-img-wrap .badge-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(22, 35, 58, 0.75);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
        }
        .data-card .card-body-custom {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .data-card .card-title-custom {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .data-card .card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .data-card .card-meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .data-card .card-meta-row .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--brand-light);
            color: var(--brand-primary);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            font-size: 0.72rem;
        }
        .data-card .read-more-link {
            color: var(--brand-primary);
            font-weight: 550;
            font-size: 0.82rem;
            white-space: nowrap;
        }
        .data-card .read-more-link:hover {
            color: var(--brand-primary-hover);
        }

        /* ===== 大图分栏 ===== */
        .split-feature {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }
        .split-feature .split-text .section-title {
            margin-bottom: 16px;
        }
        .split-feature .split-text p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 14px;
        }
        .split-feature .split-text .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .split-feature .split-text .highlight-list li {
            padding: 6px 0 6px 28px;
            position: relative;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.9rem;
        }
        .split-feature .split-text .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 16px;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .split-feature .split-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .split-feature .split-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        /* ===== 标签云 ===== */
        .tag-cloud-wrap {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }
        .tag-cloud-wrap .tag-cloud-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tag-cloud-wrap .tag-cloud-title i {
            color: var(--brand-primary);
        }
        .tag-cloud-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud-flex .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--base-bg);
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 0.82rem;
            transition: all var(--transition-base);
            cursor: default;
        }
        .tag-cloud-flex .tag-pill:hover {
            background: var(--brand-light);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        .tag-cloud-flex .tag-pill.hot {
            background: #FFF4E0;
            border-color: #F5D9A8;
            color: var(--accent-warm);
            font-weight: 500;
        }

        /* ===== 表单 ===== */
        .subscribe-form-wrap {
            background: linear-gradient(135deg, #EBF1FE 0%, #F7F9FC 100%);
            border: 1px solid var(--brand-light);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .subscribe-form-wrap .subs-text {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-form-wrap .subs-text .section-title {
            margin-bottom: 6px;
            font-size: 1.3rem;
        }
        .subscribe-form-wrap .subs-text p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .subscribe-form-wrap .subs-form {
            flex: 1;
            min-width: 280px;
            display: flex;
            gap: 12px;
        }
        .subscribe-form-wrap .subs-form input {
            flex: 1;
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 0.9rem;
            font-family: var(--font-family-base);
            color: var(--text-primary);
            background: #fff;
            transition: all var(--transition-base);
        }
        .subscribe-form-wrap .subs-form input:focus {
            border-color: var(--brand-primary);
            outline: none;
            box-shadow: 0 0 0 3px var(--shadow-focus);
        }
        .subscribe-form-wrap .subs-form input::placeholder {
            color: #A0AEC0;
        }

        /* ===== FAQ/问答折叠 ===== */
        .qa-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .qa-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .qa-item:hover {
            border-color: var(--brand-light);
            box-shadow: var(--shadow-card);
        }
        .qa-item .qa-question {
            width: 100%;
            background: #fff;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition-base);
            font-family: var(--font-family-base);
        }
        .qa-item .qa-question:hover {
            color: var(--brand-primary);
            background: #FBFDFF;
        }
        .qa-item .qa-question .qa-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: transform var(--transition-base);
        }
        .qa-item .qa-question[aria-expanded="true"] .qa-icon {
            transform: rotate(180deg);
            background: var(--brand-primary);
            color: #fff;
        }
        .qa-item .qa-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.75;
            background: #FBFDFF;
        }
        .qa-item .qa-answer.show {
            max-height: 220px;
            padding: 0 22px 18px;
        }

        /* ===== 相关分类入口 ===== */
        .related-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-entry-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .related-entry-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
            transform: translateY(-2px);
        }
        .related-entry-item .entry-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .related-entry-item .entry-text {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .related-entry-item .entry-text small {
            display: block;
            font-weight: 400;
            color: var(--text-muted);
            font-size: 0.75rem;
            margin-top: 4px;
        }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--text-primary);
            color: rgba(255, 255, 255, 0.82);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 0.86rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
            max-width: 300px;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 650;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.86rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--brand-primary);
        }
        .footer-contact {
            font-size: 0.84rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0 28px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--brand-primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
            .data-overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .split-feature {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .related-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-main,
            .section-main-alt {
                padding: var(--section-padding-mobile);
            }
        }

        @media (max-width: 767.98px) {
            .data-card-grid {
                grid-template-columns: 1fr;
            }
            .data-overview-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .data-overview-card {
                padding: 16px 14px;
            }
            .data-overview-card .data-value {
                font-size: 1.5rem;
            }
            .subscribe-form-wrap {
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form-wrap .subs-form {
                flex-direction: column;
            }
            .subscribe-form-wrap .subs-form .btn-brand {
                width: 100%;
                justify-content: center;
            }
            .related-entry-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero-mini {
                padding: 32px 0 28px;
            }
        }

        @media (max-width: 575.98px) {
            .container-lg-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .data-overview-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-overview-card .data-value {
                font-size: 1.3rem;
            }
            .data-card .card-img-wrap {
                height: 140px;
            }
            .split-feature .split-img img {
                min-height: 200px;
            }
            .tag-cloud-wrap {
                padding: 20px 18px;
            }
            .section-main,
            .section-main-alt {
                padding: 36px 0;
            }
        }

        @media (min-width: 992px) {
            .navbar-custom .navbar-collapse {
                background: transparent;
                border-radius: 0;
                padding: 0;
                margin-top: 0;
                box-shadow: none;
                border: none;
            }
            .btn-nav-primary {
                width: auto;
                text-align: center;
                margin-top: 0;
            }
            .navbar-custom .nav-link.active::after {
                display: block;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', sans-serif;
            --font-family-num: Inter, 'Segoe UI', Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Navigation ===== */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

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

        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .logo-text {
            letter-spacing: 0.02em;
        }

        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }

        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }

        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }

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

        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }

        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }

        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2316233A' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Category Page Header ===== */
        .category-header {
            background-image: linear-gradient(135deg, rgba(220, 231, 251, 0.65) 0%, rgba(247, 249, 252, 0.92) 55%, rgba(255, 255, 255, 0.98) 100%), url('/assets/images/080bd04097d6d2ed.jpg');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
            padding: 36px 0 28px;
            position: relative;
        }

        .category-header::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand-primary), var(--brand-light), transparent);
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb-custom .divider {
            color: var(--border);
            font-size: 0.7rem;
        }

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

        .category-header h1 {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .category-header .category-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.75;
            margin-bottom: 0;
        }

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

        .section-title-wrap {
            margin-bottom: 36px;
        }

        .section-title-wrap h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-title-wrap p {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .section-divider {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 0;
            opacity: 0.7;
        }

        /* ===== News Card List ===== */
        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(62, 123, 250, 0.3);
        }

        .news-card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .news-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .news-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--brand-light);
            color: var(--brand-primary);
            letter-spacing: 0.02em;
        }

        .news-tag.accent {
            background: #FDF3E0;
            color: #C47D14;
        }

        .news-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }

        .news-card:hover .news-card-title {
            color: var(--brand-primary);
        }

        .news-card-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .news-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-card-link {
            font-size: 0.82rem;
            font-weight: 550;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-base);
        }

        .news-card-link i {
            transition: transform var(--transition-base);
            font-size: 0.75rem;
        }

        .news-card-link:hover {
            color: var(--brand-primary-hover);
        }

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

        /* ===== Stats Strip ===== */
        .stats-strip {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            box-shadow: var(--shadow-card);
        }

        .stat-item {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            min-width: 150px;
        }

        .stat-item .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--brand-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .stat-item .stat-value {
            font-family: var(--font-family-num);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== Tag Cloud ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .cloud-tag {
            display: inline-block;
            padding: 7px 16px;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: var(--card-bg);
            border: 1px solid var(--border);
            color: var(--text-primary);
            transition: all var(--transition-base);
            cursor: default;
        }

        .tag-cloud .cloud-tag:hover {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        .tag-cloud .cloud-tag.active-tag {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
        }

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

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(62, 123, 250, 0.3);
        }

        .topic-card-img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .topic-card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            transition: color var(--transition-base);
        }

        .topic-card:hover .topic-card-title {
            color: var(--brand-primary);
        }

        .topic-card-desc {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 10px;
        }

        .topic-card-link {
            font-size: 0.82rem;
            font-weight: 550;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .topic-card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-base);
        }

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

        /* ===== Subscribe Box ===== */
        .subscribe-box {
            background: linear-gradient(135deg, var(--brand-light) 0%, #F0F5FF 100%);
            border: 1px solid rgba(62, 123, 250, 0.2);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .subscribe-info h3 {
            font-size: 1.3rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .subscribe-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            max-width: 480px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 280px;
            max-width: 420px;
        }

        .subscribe-form .form-control-subscribe {
            flex: 1;
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 0.88rem;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }

        .subscribe-form .form-control-subscribe:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px var(--shadow-focus);
            outline: none;
        }

        .subscribe-form .btn-subscribe {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }

        .subscribe-form .btn-subscribe:hover {
            background: var(--brand-primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== FAQ Accordion ===== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }

        .accordion-custom .accordion-header {
            margin: 0;
        }

        .accordion-custom .accordion-button {
            background: #fff;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: all var(--transition-base);
            border-radius: 10px !important;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--brand-light);
            color: var(--text-primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
            border-radius: 10px 10px 0 0 !important;
        }

        .accordion-custom .accordion-button::after {
            background-size: 0.9rem;
            transition: transform var(--transition-base);
            color: var(--brand-primary);
        }

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

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
            z-index: 1;
        }

        .accordion-custom .accordion-body {
            padding: 16px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            background: #FBFCFE;
        }

        /* ===== Related Entry ===== */
        .related-entry-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .related-entry-item {
            flex: 1 1 220px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .related-entry-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(62, 123, 250, 0.3);
        }

        .related-entry-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-entry-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--brand-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .related-entry-name {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .related-entry-desc {
            font-size: 0.76rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .related-entry-arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .related-entry-item:hover .related-entry-arrow {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
        }

        /* ===== Buttons ===== */
        .btn-primary-custom {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .btn-secondary-custom {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-custom:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: transparent;
        }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--text-primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 24px;
            margin-top: 0;
        }

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

        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand-desc {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.82rem;
            transition: color var(--transition-base);
        }

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

        .footer-contact {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
            .footer-grid > div:last-child {
                grid-column: span 3;
            }
        }

        @media (max-width: 991px) {
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }

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

            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }

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

            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 28px;
            }

            .subscribe-form {
                width: 100%;
                max-width: 100%;
            }

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

            .footer-grid > div:last-child {
                grid-column: span 2;
            }
        }

        @media (max-width: 767px) {
            .section-cat {
                padding: 36px 0;
            }

            .stats-strip {
                padding: 16px 18px;
                gap: 12px;
            }

            .stat-item {
                min-width: 120px;
                gap: 10px;
            }

            .stat-item .stat-icon {
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }

            .stat-item .stat-value {
                font-size: 1.15rem;
            }

            .category-header {
                padding: 28px 0 22px;
            }

            .category-header h1 {
                font-size: 1.6rem;
            }

            .news-card-img {
                height: 150px;
            }

            .topic-card-img {
                height: 130px;
            }

            .subscribe-box {
                padding: 20px;
            }

            .subscribe-form {
                flex-direction: column;
                gap: 10px;
            }

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

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

            .footer-grid > div:last-child {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .related-entry-grid {
                flex-direction: column;
            }

            .related-entry-item {
                flex: 1 1 100%;
            }
        }

        @media (max-width: 575px) {
            .container-lg-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-header h1 {
                font-size: 1.4rem;
            }

            .news-card-img {
                height: 135px;
            }

            .stat-item {
                min-width: 100%;
                padding-bottom: 8px;
                border-bottom: 1px solid var(--border);
            }

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

            .stats-strip {
                flex-direction: column;
            }

            .tag-cloud .cloud-tag {
                padding: 6px 12px;
                font-size: 0.76rem;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --font-family-num: Inter, "Segoe UI", Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ===== Navigation ===== */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .navbar-brand-logo:hover {
            color: var(--brand-primary);
        }
        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }
        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .navbar-custom .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }
        /* ===== Category Header ===== */
        .category-header-section {
            padding: 48px 0 40px;
            background: #fff;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb-custom .separator {
            color: #C9D4E6;
        }
        .breadcrumb-custom .current {
            color: var(--brand-primary);
            font-weight: 500;
        }
        .category-header-section h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .category-header-section .category-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 820px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .category-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .category-meta-row span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-meta-row i {
            color: var(--brand-primary);
            font-size: 0.9rem;
        }
        /* ===== Section Base ===== */
        .section-base {
            padding: var(--section-padding);
            background: var(--base-bg);
        }
        .section-base.alt-bg {
            background: #fff;
        }
        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .section-heading .subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* ===== Match Schedule List ===== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .schedule-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .schedule-item:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .schedule-date-block {
            min-width: 90px;
            text-align: center;
            flex-shrink: 0;
        }
        .schedule-date-block .day {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--brand-primary);
            font-family: var(--font-family-num);
            line-height: 1.2;
        }
        .schedule-date-block .month {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .schedule-info {
            flex: 1;
            min-width: 200px;
        }
        .schedule-info .league-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-primary);
            background: var(--brand-light);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 6px;
        }
        .schedule-info h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .schedule-info .match-detail {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .schedule-actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-outline-custom {
            background: transparent;
            border: 1px solid #C9D4E6;
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            font-size: 0.85rem;
            font-weight: 550;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .btn-primary-custom {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 550;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        /* ===== Tool Cards ===== */
        .tool-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tool-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-align: left;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--brand-primary);
        }
        .tool-icon {
            width: 44px;
            height: 44px;
            background: var(--brand-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .tool-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .tool-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* ===== Featured Topics ===== */
        .topic-horizontal-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .topic-row-card {
            display: flex;
            align-items: stretch;
            gap: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .topic-row-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--brand-primary);
        }
        .topic-card-img {
            width: 200px;
            flex-shrink: 0;
            object-fit: cover;
        }
        .topic-card-content {
            padding: 20px 24px;
            flex: 1;
        }
        .topic-card-content .topic-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-warm);
            background: #FFF4E5;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 8px;
        }
        .topic-card-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .topic-card-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .topic-link {
            font-size: 0.85rem;
            font-weight: 550;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-link:hover {
            color: var(--brand-primary-hover);
        }
        /* ===== Subscribe Form ===== */
        .subscribe-panel {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
        }
        .subscribe-info {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-info h3 {
            font-size: 1.25rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .subscribe-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            min-width: 260px;
            flex: 1;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 180px;
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 0.9rem;
            font-family: var(--font-family-base);
            transition: all var(--transition-base);
        }
        .subscribe-form input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px var(--shadow-focus);
            outline: none;
        }
        /* ===== Knowledge Tips ===== */
        .tips-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .tip-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .tip-item:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-card-hover);
        }
        .tip-item summary {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            list-style: none;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }
        .tip-item summary::-webkit-details-marker {
            display: none;
        }
        .tip-item summary i {
            color: var(--brand-primary);
            font-size: 0.9rem;
            transition: transform var(--transition-base);
        }
        .tip-item[open] summary i {
            transform: rotate(180deg);
        }
        .tip-answer {
            margin-top: 12px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
            padding-left: 24px;
            border-left: 2px solid var(--brand-light);
        }
        /* ===== Related Category Entry ===== */
        .related-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-entry-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: all var(--transition-base);
        }
        .related-entry-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .related-entry-card .entry-icon {
            width: 40px;
            height: 40px;
            background: var(--brand-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 1rem;
            margin: 0 auto 10px;
        }
        .related-entry-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .related-entry-card .entry-arrow {
            font-size: 0.8rem;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        /* ===== Footer ===== */
        .footer-main {
            background: var(--text-primary);
            color: #B8C4D9;
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            padding-bottom: 36px;
        }
        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #B8C4D9;
            margin-bottom: 0;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: #B8C4D9;
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact {
            font-size: 0.85rem;
            line-height: 1.8;
            color: #B8C4D9;
            margin-bottom: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: #B8C4D9;
        }
        .footer-bottom a {
            color: #B8C4D9;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .tool-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            :root {
                --section-padding: 52px 0;
            }
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .topic-card-img {
                width: 140px;
            }
            .tool-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-padding: 40px 0;
            }
            .schedule-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 16px 18px;
            }
            .schedule-date-block {
                min-width: auto;
                text-align: left;
                display: flex;
                align-items: baseline;
                gap: 8px;
            }
            .schedule-date-block .day {
                font-size: 1.4rem;
            }
            .schedule-actions {
                width: 100%;
            }
            .schedule-actions .btn-outline-custom,
            .schedule-actions .btn-primary-custom {
                flex: 1;
                text-align: center;
            }
            .tool-grid {
                grid-template-columns: 1fr;
            }
            .topic-row-card {
                flex-direction: column;
            }
            .topic-card-img {
                width: 100%;
                height: 160px;
            }
            .subscribe-panel {
                flex-direction: column;
                padding: 24px 20px;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .subscribe-form .btn-primary-custom {
                width: 100%;
            }
            .related-entry-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-header-section {
                padding: 32px 0 28px;
            }
            .category-meta-row {
                gap: 14px;
            }
        }
        @media (max-width: 575px) {
            .container-lg-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .related-entry-grid {
                grid-template-columns: 1fr;
            }
            .schedule-item {
                padding: 14px 16px;
            }
            .tool-card {
                padding: 18px;
            }
            .topic-card-content {
                padding: 16px 18px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #3E7BFA;
            --brand-primary-hover: #2F67D8;
            --brand-light: #DCE7FB;
            --accent: #5B6B8C;
            --accent-warm: #F5A623;
            --base-bg: #F7F9FC;
            --card-bg: #FFFFFF;
            --border: #E6EBF2;
            --text-primary: #16233A;
            --text-muted: #5B6B8C;
            --success-green: #34A853;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 2px 8px rgba(22, 35, 58, 0.04), 0 12px 24px -8px rgba(22, 35, 58, 0.08);
            --shadow-card-hover: 0 4px 12px rgba(62, 123, 250, 0.12), 0 20px 32px -12px rgba(22, 35, 58, 0.18);
            --shadow-focus: rgba(62, 123, 250, 0.35);
            --font-family-base: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
            --font-family-num: Inter, "Segoe UI", Roboto, system-ui, sans-serif;
            --transition-base: 0.25s ease;
            --section-padding: 72px 0;
            --section-padding-mobile: 40px 0;
            --container-max: 1140px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family-base);
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--base-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--shadow-focus);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-lg-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Navigation */
        .navbar-brand-logo {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .navbar-brand-logo:hover {
            color: var(--brand-primary);
        }
        .logo-icon-shield {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 8px;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .navbar-custom {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            padding: 0;
        }
        .navbar-custom .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 0.6rem 1rem;
            position: relative;
            white-space: nowrap;
            border-radius: 6px;
            transition: all var(--transition-base);
        }
        .navbar-custom .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .navbar-custom .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 0.15rem;
            height: 2px;
            background: var(--brand-primary);
            border-radius: 2px;
        }
        .btn-nav-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .btn-nav-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.2rem;
            color: var(--text-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }

        /* Breadcrumb */
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb-separator {
            color: var(--border);
            font-size: 0.7rem;
            margin: 0 4px;
        }
        .breadcrumb-current {
            color: var(--brand-primary);
            font-weight: 500;
        }

        /* Classification H1 area */
        .cat-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 32px 0 24px;
        }
        .cat-header h1 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .cat-header .cat-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 680px;
            line-height: 1.7;
        }

        /* Section base */
        .section-cat {
            padding: 48px 0;
        }
        .section-cat.alt-bg {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: clamp(1.2rem, 2vw, 1.5rem);
            font-weight: 650;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        /* Discussion list cards */
        .discussion-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .discussion-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-light);
        }
        .discussion-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .discussion-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .discussion-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .discussion-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--brand-primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 550;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            z-index: 2;
        }
        .discussion-card .card-tag.hot {
            background: var(--accent-warm);
        }
        .discussion-card .card-tag.community {
            background: var(--success-green);
        }
        .card-body-custom {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body-custom h3 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .card-body-custom h3 a {
            color: var(--text-primary);
            transition: color var(--transition-base);
        }
        .card-body-custom h3 a:hover {
            color: var(--brand-primary);
        }
        .card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
            margin-top: auto;
        }
        .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .card-meta .read-more-link {
            color: var(--brand-primary);
            font-weight: 550;
            white-space: nowrap;
            transition: color var(--transition-base);
        }
        .card-meta .read-more-link:hover {
            color: var(--brand-primary-hover);
        }
        .card-meta .read-more-link i {
            font-size: 0.7rem;
            margin-left: 2px;
        }

        /* Tag cloud */
        .tag-cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 7px 16px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }
        .tag-cloud-item:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
        }
        .tag-cloud-item .tag-count {
            background: var(--brand-light);
            color: var(--brand-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 1px 8px;
            border-radius: var(--radius-pill);
            min-width: 22px;
            text-align: center;
        }

        /* Stats row */
        .stats-row-cat {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item-cat {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-item-cat:hover {
            border-color: var(--brand-light);
            box-shadow: var(--shadow-card);
        }
        .stat-number-cat {
            font-family: var(--font-family-num);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-label-cat {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* Hot read cards */
        .hot-read-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 22px 20px;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .hot-read-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-light);
        }
        .hot-read-rank {
            font-family: var(--font-family-num);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--brand-light);
            line-height: 1;
            margin-bottom: 4px;
        }
        .hot-read-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .hot-read-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Community experts */
        .expert-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
            height: 100%;
        }
        .expert-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-light);
        }
        .expert-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 1.5rem;
            color: var(--brand-primary);
        }
        .expert-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .expert-role {
            font-size: 0.78rem;
            color: var(--brand-primary);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .expert-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Subscribe form */
        .subscribe-box {
            background: linear-gradient(135deg, #F0F5FF 0%, #E8F0FE 100%);
            border: 1px solid var(--brand-light);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-info h3 {
            font-size: 1.15rem;
            font-weight: 650;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .subscribe-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            min-width: 280px;
            flex: 1;
            max-width: 420px;
        }
        .subscribe-form .form-input {
            flex: 1;
            min-width: 200px;
            border: 1px solid #C9D4E6;
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 0.88rem;
            font-family: var(--font-family-base);
            color: var(--text-primary);
            background: #fff;
            transition: all var(--transition-base);
        }
        .subscribe-form .form-input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px var(--shadow-focus);
            outline: none;
        }
        .subscribe-form .btn-submit {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            font-size: 0.88rem;
            font-weight: 550;
            white-space: nowrap;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .subscribe-form .btn-submit:hover {
            background: var(--brand-primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        /* FAQ accordion custom */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: #fff;
            box-shadow: none;
        }
        .accordion-custom .accordion-item:last-child {
            margin-bottom: 0;
        }
        .accordion-custom .accordion-header .accordion-button {
            background: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            border-radius: 10px;
            transition: all var(--transition-base);
        }
        .accordion-custom .accordion-header .accordion-button:not(.collapsed) {
            background: #F7F9FC;
            color: var(--brand-primary);
            border-bottom: 1px solid var(--border);
            border-radius: 10px 10px 0 0;
        }
        .accordion-custom .accordion-header .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--shadow-focus);
            border-color: var(--brand-primary);
        }
        .accordion-custom .accordion-header .accordion-button::after {
            background-size: 14px;
            width: 14px;
            height: 14px;
            transition: transform 0.25s ease;
            filter: invert(42%) sepia(96%) saturate(702%) hue-rotate(210deg) brightness(97%) contrast(94%);
        }
        .accordion-custom .accordion-body {
            background: #FBFCFE;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 16px 20px;
            line-height: 1.7;
        }

        /* Related categories */
        .related-cat-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .related-cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }
        .related-cat-link:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-light);
            transform: translateY(-2px);
        }
        .related-cat-link i {
            font-size: 0.75rem;
            color: var(--brand-primary);
        }

        /* Footer */
        .footer-main {
            background: #16233A;
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .footer-brand-desc {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin: 0;
        }
        .footer-col-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.82rem;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1199px) {
            .stats-row-cat {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 991px) {
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .navbar-custom .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 16px;
                margin-top: 8px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border);
            }
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                margin-top: 8px;
            }
            .section-cat {
                padding: 36px 0;
            }
            .cat-header {
                padding: 24px 0 18px;
            }
            .discussion-card .card-img-wrap {
                height: 150px;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                max-width: 100%;
                min-width: auto;
                width: 100%;
            }
        }
        @media (max-width: 767px) {
            .stats-row-cat {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number-cat {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .discussion-card .card-img-wrap {
                height: 140px;
            }
            .card-body-custom {
                padding: 16px 16px 12px;
            }
            .subscribe-box {
                padding: 24px 18px;
            }
            .subscribe-form .form-input {
                min-width: 100%;
            }
            .subscribe-form .btn-submit {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }
        @media (max-width: 575px) {
            .container-lg-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-cat {
                padding: 28px 0;
            }
            .stats-row-cat {
                grid-template-columns: 1fr;
            }
            .tag-cloud-item {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .cat-header h1 {
                font-size: 1.3rem;
            }
            .discussion-card .card-img-wrap {
                height: 120px;
            }
            .hot-read-card {
                padding: 16px 14px;
            }
            .related-cat-link {
                padding: 8px 14px;
                font-size: 0.78rem;
                width: 100%;
                justify-content: center;
            }
            .accordion-custom .accordion-header .accordion-button {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
        }

/* 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}