/* roulang page: index */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2,16,45,0.06);
            --shadow-card-hover: 0 12px 28px rgba(2,16,45,0.12);
            --shadow-float: 0 8px 32px rgba(2,16,45,0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }

        /* Sidebar Navigation */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2,16,45,0.04);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }

        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }

        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }

        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }

        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }

        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }

        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }

        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }

        .sidebar-nav-item:hover i {
            color: var(--brand);
        }

        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }

        .sidebar-nav-item.active i {
            color: var(--brand);
        }

        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }

        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }

        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }

        /* Main content area */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }

        /* Mobile top bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }

        .hamburger-btn:hover {
            background: #f8fafc;
        }

        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
        }

        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
        }

        /* Mobile drawer */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.4);
            z-index: 1101;
            transition: opacity var(--transition);
        }

        .drawer-overlay.open {
            display: block;
        }

        /* Bottom fixed CTA bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--brand-border);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -4px 20px rgba(2,16,45,0.06);
        }

        .bottom-cta-info {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--brand-text);
            font-weight: 500;
        }

        .bottom-cta-info .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        .bottom-cta-btn {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition), transform var(--transition);
        }

        .bottom-cta-btn:hover {
            background: var(--brand-dark);
            transform: translateY(-1px);
        }

        /* Hero section */
        .hero-section {
            background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%);
            padding: 60px 40px 60px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(11,95,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
            max-width: 1200px;
            margin: 0 auto;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 420px;
            box-shadow: var(--shadow-float);
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: flex-end;
            justify-content: flex-start;
            padding: 24px;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(2,16,45,0.6) 0%, rgba(2,16,45,0.2) 60%, rgba(2,16,45,0.5) 100%);
            border-radius: var(--radius-card);
        }

        .hero-floating-card {
            position: relative;
            z-index: 2;
            background: #ffffff;
            border-radius: 12px;
            padding: 18px 20px;
            box-shadow: 0 10px 36px rgba(2,16,45,0.18);
            display: flex;
            align-items: center;
            gap: 14px;
            min-width: 260px;
            max-width: 320px;
            border: 1px solid var(--brand-border);
        }

        .hero-floating-card .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #22c55e;
            animation: pulse-dot 2s infinite;
            flex-shrink: 0;
        }

        .hero-floating-card .hfc-text {
            font-size: 13px;
            color: var(--brand-text);
            font-weight: 500;
            line-height: 1.4;
        }

        .hero-floating-card .hfc-sub {
            font-size: 12px;
            color: var(--brand-muted);
        }

        /* Cards */
        .card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #d0ddee;
        }

        /* Custom buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.2;
        }

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

        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(11,95,255,0.3);
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--brand-text);
            border: 1px solid var(--brand-border);
        }

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

        .btn-amber {
            background: var(--brand-amber);
            color: #fff;
        }

        .btn-amber:hover {
            background: #e67a00;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,138,0,0.3);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.3;
        }

        .badge-blue {
            background: var(--brand-light);
            color: var(--brand);
        }

        .badge-amber {
            background: #FFF4E6;
            color: #CC6D00;
        }

        .badge-green {
            background: #E8F9EF;
            color: #16a34a;
        }

        /* Section headings */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand-text);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 680px;
        }

        /* FAQ accordion */
        .faq-item {
            background: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-question {
            width: 100%;
            background: #ffffff;
            border: none;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-text);
            cursor: pointer;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--brand-muted);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            padding: 0 20px 16px;
            max-height: 300px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 0 0 40px rgba(0,0,0,0.15);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .hero-section {
                padding-top: 80px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                min-height: 300px;
            }
            .mobile-topbar-spacer {
                height: var(--navbar-height);
                display: block;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 80px;
            }
            .hero-section {
                padding: 70px 20px 40px;
            }
            .section-title {
                font-size: 22px;
            }
            .bottom-cta-bar {
                padding: 8px 12px;
                gap: 10px;
            }
            .bottom-cta-info {
                font-size: 12px;
            }
            .bottom-cta-btn {
                padding: 10px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .hero-visual {
                min-height: 220px;
                padding: 14px;
            }
            .hero-floating-card {
                min-width: 200px;
                padding: 12px 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .bottom-cta-bar {
                flex-direction: row;
                gap: 8px;
            }
            .bottom-cta-info span:not(.hidden-mobile) {
                display: none;
            }
        }

        /* Container helper */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 40px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 20px;
            }
        }

        /* Info cards grid */
        .info-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

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

        /* Asymmetric selling points */
        .selling-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .selling-grid .large-card {
            grid-row: 1 / span 2;
        }

        @media (max-width: 768px) {
            .selling-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .selling-grid .large-card {
                grid-row: auto;
            }
        }

        /* Review card */
        .review-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--brand-border);
            box-shadow: 0 4px 12px rgba(2,16,45,0.04);
            transition: all var(--transition);
        }

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

        /* Partner badges */
        .partner-badge {
            background: #ffffff;
            border-radius: 12px;
            padding: 16px 18px;
            border: 1px solid var(--brand-border);
            text-align: center;
            transition: all var(--transition);
        }

        .partner-badge:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow-card-hover);
        }

        /* Data metric */
        .data-metric-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 22px 16px;
            border: 1px solid var(--brand-border);
            text-align: center;
            transition: all var(--transition);
        }

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

        .data-metric-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .data-metric-label {
            font-size: 13px;
            color: var(--brand-muted);
            font-weight: 500;
        }

        /* Footer */
        .footer {
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 0 20px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 28px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

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

        /* Preloader animation */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .fade-in-up {
            animation: fadeInUp 0.5s ease forwards;
        }

        /* Misc */
        .text-gradient-blue {
            background: linear-gradient(135deg, #0B5FFF 0%, #3B82F6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .scrollbar-hide::-webkit-scrollbar {
            display: none;
        }
        .scrollbar-hide {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

/* roulang page: category2 */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2, 16, 45, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(2, 16, 45, 0.12);
            --shadow-float: 0 8px 32px rgba(2, 16, 45, 0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2, 16, 45, 0.04);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }

        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }

        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }

        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }

        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }

        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }

        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }

        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }

        .sidebar-nav-item:hover i {
            color: var(--brand);
        }

        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }

        .sidebar-nav-item.active i {
            color: var(--brand);
        }

        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }

        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }

        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }

        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }

        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }

        .hamburger-btn:hover {
            background: #f8fafc;
        }

        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
        }

        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(2, 16, 45, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .drawer-overlay.show {
            display: block;
            opacity: 1;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            line-height: 1.4;
        }

        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 95, 255, 0.25);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand-text);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            line-height: 1.4;
        }

        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            color: var(--brand);
        }

        .btn-outline:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--brand-light);
            color: var(--brand);
            line-height: 1.5;
        }

        .badge-amber {
            background: #FFF3E0;
            color: #B65A00;
        }

        .section-block {
            padding: 64px 0;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--brand-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--brand-border);
            color: var(--brand-muted);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--brand-light);
        }

        .filter-pill.active {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
        }

        .score-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }

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

        .score-card .score-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-bottom: 1px solid var(--brand-border);
            background: #FAFCFF;
        }

        .score-card .score-body {
            padding: 16px;
        }

        .score-team {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .score-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-text);
            min-width: 48px;
            text-align: center;
        }

        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22C55E;
            animation: pulse 1.5s ease-in-out infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.2);
            }
        }

        .data-panel {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .data-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            border-bottom: 1px solid var(--brand-border);
            background: #FAFCFF;
        }

        .data-panel-body {
            padding: 20px;
        }

        .stat-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #F1F5F9;
        }

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

        .stat-row .stat-label {
            font-size: 14px;
            color: var(--brand-muted);
        }

        .stat-row .stat-value {
            font-size: 16px;
            font-weight: 600;
            color: var(--brand-text);
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 10px;
            margin-bottom: 12px;
            transition: all var(--transition);
        }

        .faq-item.open {
            border-color: var(--brand);
            box-shadow: 0 6px 16px rgba(11, 95, 255, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-text);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }

        .faq-question .fa-chevron-down {
            transition: transform var(--transition);
            color: var(--brand-muted);
            flex-shrink: 0;
            font-size: 12px;
        }

        .faq-item.open .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--brand);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
            background: #FAFCFF;
        }

        .footer {
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 0;
            margin-left: var(--sidebar-width);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--brand-border);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--brand-muted);
        }

        .footer a {
            color: var(--brand-muted);
            transition: color var(--transition);
        }

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

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 0 0 50px rgba(2, 16, 45, 0.2);
                width: 280px;
            }

            .sidebar.show {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .main-content .container-custom {
                padding-top: 76px;
            }

            .footer {
                margin-left: 0;
            }

            .section-block {
                padding: 40px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }

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

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

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

            .score-num {
                font-size: 22px;
                min-width: 36px;
            }

            .filter-pills-wrap {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
            }
        }

        .hero-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            border-radius: 0 0 24px 24px;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.94) 0%, rgba(244, 247, 251, 0.88) 50%, rgba(232, 240, 255, 0.85) 100%);
        }

        .hero-banner .hero-inner {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--brand-muted);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--brand-muted);
        }

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

        .data-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            padding: 16px 20px;
            box-shadow: var(--shadow-card);
        }

        .data-bar-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--brand-muted);
        }

        .data-bar-item strong {
            color: var(--brand-text);
            font-weight: 700;
            font-size: 15px;
        }

        .scenario-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

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

/* roulang page: category1 */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2, 16, 45, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(2, 16, 45, 0.12);
            --shadow-float: 0 8px 32px rgba(2, 16, 45, 0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--brand-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        /* Sidebar Navigation */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2, 16, 45, 0.04);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }
        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }
        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }
        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }
        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }
        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }
        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }
        .sidebar-nav-item:hover i {
            color: var(--brand);
        }
        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }
        .sidebar-nav-item.active i {
            color: var(--brand);
        }
        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }
        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        /* Main content area */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }
        /* Mobile top bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .hamburger-btn:hover {
            background: #f8fafc;
        }
        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }
        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            transition: background var(--transition);
            white-space: nowrap;
        }
        .mobile-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        /* Drawer overlay */
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 1001;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .drawer-overlay.show {
            opacity: 1;
        }
        /* Container */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--brand-muted);
            padding: 20px 0 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand);
        }
        .breadcrumb a:hover {
            color: var(--brand-dark);
            text-decoration: underline;
        }
        .breadcrumb-separator {
            color: var(--brand-muted);
        }
        .breadcrumb-current {
            color: var(--brand-text);
            font-weight: 500;
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            background: #fff;
            color: var(--brand);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }
        .btn-secondary:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            color: var(--brand);
            transform: translateY(-1px);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        /* Tags */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: var(--brand-light);
            color: var(--brand);
            white-space: nowrap;
        }
        .tag-amber {
            background: #FFF3E0;
            color: var(--brand-amber);
        }
        .tag-outline {
            background: transparent;
            border: 1px solid var(--brand-border);
            color: var(--brand-muted);
        }
        /* Progress ring */
        .progress-ring-container {
            position: relative;
            width: 180px;
            height: 180px;
        }
        .progress-ring-container svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }
        .progress-ring-bg {
            fill: none;
            stroke: var(--brand-border);
            stroke-width: 12;
        }
        .progress-ring-fg {
            fill: none;
            stroke: var(--brand);
            stroke-width: 12;
            stroke-linecap: round;
            stroke-dasharray: 0 1000;
            transition: stroke-dasharray 1.2s ease;
        }
        .progress-ring-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            font-weight: 700;
            color: var(--brand);
        }
        .progress-ring-label {
            font-size: 12px;
            font-weight: 500;
            color: var(--brand-muted);
        }
        /* Filter bar */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 14px 18px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }
        .filter-tab {
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: #fff;
            color: var(--brand-muted);
            border: 1px solid var(--brand-border);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tab:hover {
            background: #f8fafc;
            color: var(--brand);
            border-color: var(--brand-light);
        }
        .filter-tab.active {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
        }
        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--brand-muted);
        }
        .filter-sort select {
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-text);
            font-size: 13px;
            cursor: pointer;
        }
        .filter-sort select:focus {
            border-color: var(--brand);
        }
        /* Data card grid */
        .data-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .data-card-image {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .data-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .data-card:hover .data-card-image img {
            transform: scale(1.04);
        }
        .data-card-image-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .data-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .data-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .data-card-desc {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .data-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }
        .data-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 16px;
            background: var(--brand-light);
            color: var(--brand);
            border: none;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition);
        }
        .data-card-btn:hover {
            background: var(--brand);
            color: #fff;
        }
        /* Tier card */
        .tier-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            padding: 24px 22px;
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .tier-card.highlight {
            border-color: var(--brand);
            box-shadow: 0 0 0 2px rgba(11, 95, 255, 0.08), var(--shadow-card);
        }
        .tier-card.highlight:before {
            content: '推荐';
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--brand-amber);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
        }
        .tier-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 6px;
        }
        .tier-desc {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .tier-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .tier-tag {
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 16px;
            background: #f8fafc;
            color: var(--brand-text);
            border: 1px solid var(--brand-border);
        }
        .tier-price {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 14px;
        }
        .tier-price small {
            font-size: 13px;
            font-weight: 400;
            color: var(--brand-muted);
        }
        /* Stats bar */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 34px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.4;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            padding: 20px 18px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .step-content h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-text);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.5;
        }
        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            margin-bottom: 10px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: var(--brand-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-text);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-question i {
            color: var(--brand);
            transition: transform var(--transition);
            font-size: 14px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
            background: #fbfcfe;
        }
        /* CTA Section */
        .cta-section {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-section-text {
            flex: 1;
            min-width: 240px;
        }
        .cta-section-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
        }
        .cta-section-text p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
        }
        /* Load more button */
        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 28px;
            background: #fff;
            color: var(--brand);
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .load-more-btn:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            color: var(--brand);
        }
        /* Section titles */
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            max-width: 680px;
        }
        .section-header {
            margin-bottom: 24px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-subtitle {
            margin: 0 auto;
        }
        /* Section spacing */
        .section-space {
            padding: 56px 0;
        }
        /* Hero section */
        .hero-section {
            padding: 40px 0 32px;
            background: linear-gradient(180deg, #f0f5fd 0%, #f4f7fb 100%);
            border-bottom: 1px solid var(--brand-border);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .hero-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-side-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-float);
            padding: 16px 18px;
            min-width: 180px;
            max-width: 220px;
        }
        .hero-side-card .label {
            font-size: 12px;
            color: var(--brand-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-side-card .value {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 4px;
        }
        .hero-side-card .trend {
            font-size: 12px;
            color: var(--brand);
        }
        .hero-side-card .trend.negative {
            color: #E53935;
        }
        .dot-indicator {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4CAF50;
            animation: pulse-dot 1.5s infinite;
        }
        @keyframes pulse-dot {
            0% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4); }
            50% { box-shadow: 0 0 0 6px rgba(76, 175, 80, 0); }
            100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
        }
        /* Footer */
        .footer {
            background: #fff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 0 24px;
            margin-top: 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }
        .footer-bottom {
            border-top: 1px solid var(--brand-border);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: var(--brand-muted);
            line-height: 1.8;
        }
        .footer-bottom a {
            color: var(--brand);
        }
        .footer-bottom a:hover {
            color: var(--brand-dark);
            text-decoration: underline;
        }
        .hover-text-brand:hover {
            color: var(--brand) !important;
        }
        /* Fixed bottom CTA */
        .fixed-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--brand-border);
            z-index: 900;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -4px 20px rgba(2, 16, 45, 0.06);
        }
        .fixed-bottom-cta-left {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--brand-text);
            font-weight: 500;
        }
        .fixed-bottom-cta-left .logo-mini {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 12px;
            flex-shrink: 0;
        }
        .fixed-bottom-cta .btn-primary {
            padding: 10px 22px;
            font-size: 14px;
            white-space: nowrap;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 0 0 30px rgba(2, 16, 45, 0.15);
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--navbar-height);
            }
            .mobile-topbar {
                display: flex;
            }
            .drawer-overlay.show {
                display: block;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-visual {
                justify-content: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section-space {
                padding: 40px 0;
            }
            .container-custom {
                padding: 0 20px;
            }
            .fixed-bottom-cta {
                padding: 10px 16px;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 24px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .filter-bar {
                padding: 10px 14px;
                gap: 8px;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 12px;
            }
            .filter-sort {
                margin-left: 0;
                width: 100%;
                justify-content: flex-start;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .cta-section {
                padding: 24px 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-section-text h2 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .fixed-bottom-cta {
                padding: 8px 12px;
                gap: 8px;
            }
            .fixed-bottom-cta-left {
                font-size: 11px;
                gap: 6px;
            }
            .fixed-bottom-cta .btn-primary {
                padding: 8px 14px;
                font-size: 12px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .hero-cta-row .btn-primary,
            .hero-cta-row .btn-secondary {
                width: 100%;
            }
            .progress-ring-container {
                width: 140px;
                height: 140px;
            }
            .progress-ring-text {
                font-size: 24px;
            }
            .hero-visual {
                justify-content: center;
            }
            .hero-side-card {
                min-width: 140px;
                max-width: 160px;
                padding: 12px 14px;
            }
            .hero-side-card .value {
                font-size: 18px;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding: 0 14px;
            }
            .section-space {
                padding: 32px 0;
            }
            .hero-section {
                padding: 24px 0 24px;
            }
            .hero-title {
                font-size: 21px;
            }
            .data-card-image {
                height: 150px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 26px;
            }
            .tier-card {
                padding: 18px 16px;
            }
            .tier-card.highlight:before {
                top: 8px;
                right: 8px;
                font-size: 10px;
                padding: 3px 8px;
            }
            .fixed-bottom-cta-left span {
                display: none;
            }
            .fixed-bottom-cta .btn-primary {
                padding: 8px 12px;
                font-size: 12px;
                flex: 1;
            }
            .breadcrumb {
                font-size: 12px;
                padding: 12px 0 8px;
            }
        }

/* roulang page: category3 */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2,16,45,0.06);
            --shadow-card-hover: 0 12px 28px rgba(2,16,45,0.12);
            --shadow-float: 0 8px 32px rgba(2,16,45,0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--brand-dark);
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2,16,45,0.04);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }
        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }
        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }
        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }
        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }
        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }
        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }
        .sidebar-nav-item:hover i {
            color: var(--brand);
        }
        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }
        .sidebar-nav-item.active i {
            color: var(--brand);
        }
        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }
        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .hamburger-btn:hover {
            background: #f8fafc;
        }
        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
        }
        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
        }
        .mobile-drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(2,16,45,0.45);
            z-index: 998;
            display: none;
            transition: opacity var(--transition);
        }
        .mobile-drawer-overlay.open {
            display: block;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--brand-muted);
            flex-wrap: wrap;
            padding: 12px 0;
        }
        .breadcrumb a {
            color: var(--brand-muted);
        }
        .breadcrumb a:hover {
            color: var(--brand);
        }
        .breadcrumb .current {
            color: var(--brand-text);
            font-weight: 500;
        }
        .hero-category {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, #f0f5ff 0%, #e8f0ff 50%, #d9e7ff 100%);
            border: 1px solid var(--brand-border);
        }
        .hero-category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.75) 45%, rgba(232,240,255,0.45) 100%);
        }
        .stat-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--brand-muted);
            margin-top: 4px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            background: var(--brand-light);
            color: var(--brand);
            white-space: nowrap;
        }
        .badge-amber {
            background: #FFF4E5;
            color: #FF8A00;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 13px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(11,95,255,0.28);
        }
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .sidebar-footer-cta:focus-visible {
            outline: 2px solid rgba(11,95,255,0.4);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand-text);
            border: 1px solid var(--brand-border);
            padding: 13px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: var(--brand-light);
            border-color: #c0d4ff;
            color: var(--brand);
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--brand-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .preview-panel {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 16px;
            box-shadow: var(--shadow-float);
            overflow: hidden;
        }
        .preview-panel-header {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            border-bottom: 1px solid var(--brand-border);
            background: #fafcff;
        }
        .preview-panel-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #52c41a;
        }
        .preview-panel-dot.orange {
            background: var(--brand-amber);
        }
        .preview-panel-dot.blue {
            background: var(--brand);
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #c0d4ff;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 15px 18px;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-text);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-question i {
            color: var(--brand-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 18px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 18px 16px;
        }
        .footer {
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 24px 32px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .footer-bottom {
            max-width: 1000px;
            margin: 24px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--brand-border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--brand-muted);
        }
        .container-custom {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .flow-step {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--brand-border);
        }
        .flow-step:last-child {
            border-bottom: none;
        }
        .flow-step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding: 14px 16px;
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            margin-bottom: 20px;
        }
        .filter-tag {
            padding: 7px 14px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 500;
            background: #fff;
            border: 1px solid var(--brand-border);
            color: var(--brand-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: #c0d4ff;
            color: var(--brand);
        }
        .filter-tag.active {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
        }
        .rank-row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-bottom: 1px solid #f0f4fa;
            font-size: 14px;
        }
        .rank-row:last-child {
            border-bottom: none;
        }
        .rank-position {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: #f4f7fb;
            color: var(--brand-muted);
            font-weight: 600;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .rank-position.top {
            background: var(--brand-light);
            color: var(--brand);
        }
        .rank-position.amber {
            background: #FFF4E5;
            color: var(--brand-amber);
        }
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--navbar-height);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-title {
                font-size: 19px;
            }
            .stat-number {
                font-size: 26px;
            }
            .container-custom {
                padding: 0 16px;
            }
            .filter-bar {
                padding: 10px 12px;
                gap: 6px;
            }
            .filter-tag {
                font-size: 12px;
                padding: 6px 10px;
            }
            .btn-primary, .btn-secondary {
                padding: 11px 18px;
                font-size: 14px;
            }
            .footer {
                padding: 28px 16px 24px;
            }
        }

/* roulang page: category4 */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2, 16, 45, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(2, 16, 45, 0.12);
            --shadow-float: 0 8px 32px rgba(2, 16, 45, 0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }
        :root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2, 16, 45, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(2, 16, 45, 0.12);
            --shadow-float: 0 8px 32px rgba(2, 16, 45, 0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--brand-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2, 16, 45, 0.04);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }
        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }
        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }
        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }
        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }
        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }
        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }
        .sidebar-nav-item:hover i {
            color: var(--brand);
        }
        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }
        .sidebar-nav-item.active i {
            color: var(--brand);
        }
        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }
        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .hamburger-btn:hover {
            background: #f8fafc;
        }
        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
        }
        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .mobile-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.active {
            opacity: 1;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--brand-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand-muted);
        }
        .breadcrumb a:hover {
            color: var(--brand);
        }
        .breadcrumb .separator {
            color: var(--brand-border);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--brand);
            font-weight: 500;
        }
        .hero-banner {
            background: linear-gradient(135deg, #f0f5ff 0%, #f8fafc 100%);
            border-bottom: 1px solid var(--brand-border);
            padding: 40px 0 32px;
            position: relative;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(11, 95, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-banner-content {
            position: relative;
            z-index: 1;
        }
        .hero-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-text);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .hero-banner .subtitle {
            font-size: 16px;
            color: var(--brand-muted);
            max-width: 680px;
            line-height: 1.7;
        }
        .section-block {
            padding: 48px 0;
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--brand-muted);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--brand-light);
            color: var(--brand);
            white-space: nowrap;
        }
        .badge-amber {
            background: #FFF3E6;
            color: #B36500;
        }
        .badge-green {
            background: #E6F7EE;
            color: #1A7F4B;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            line-height: 1.4;
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(11, 95, 255, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            border: 1px solid var(--brand-border);
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            line-height: 1.4;
            text-align: center;
        }
        .btn-secondary:hover {
            background: var(--brand-light);
            border-color: rgba(11, 95, 255, 0.3);
            color: var(--brand);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        .device-card {
            padding: 24px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            height: 100%;
        }
        .device-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .device-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 14px;
        }
        .faq-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--brand-border);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-color: rgba(11, 95, 255, 0.3);
            background: #FAFCFF;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 16px 20px;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-text);
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--brand);
        }
        .faq-question .faq-icon {
            transition: transform var(--transition);
            flex-shrink: 0;
            color: var(--brand-muted);
            font-size: 14px;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--brand);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .fixed-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--brand-border);
            z-index: 950;
            padding: 12px 0;
            display: flex;
            align-items: center;
            box-shadow: 0 -4px 20px rgba(2, 16, 45, 0.06);
        }
        .fixed-bottom-cta .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }
        .fixed-bottom-cta .cta-text {
            font-size: 14px;
            color: var(--brand-text);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer {
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 40px 0 24px;
            margin-top: 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 14px;
        }
        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer ul li a {
            font-size: 14px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }
        .footer ul li a:hover {
            color: var(--brand);
        }
        .footer-bottom {
            border-top: 1px solid var(--brand-border);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: var(--brand-muted);
        }
        .footer-bottom a {
            color: var(--brand-muted);
        }
        .footer-bottom a:hover {
            color: var(--brand);
        }
        .device-feature-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .device-feature-list .feature-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 6px;
            background: #F8FAFC;
            border: 1px solid var(--brand-border);
            color: var(--brand-text);
        }
        .feature-chip i {
            font-size: 11px;
            color: var(--brand);
        }
        .step-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--brand-border);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .step-content {
            flex: 1;
        }
        .step-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--brand-text);
            margin-bottom: 4px;
        }
        .step-content p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.active {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-content {
                padding-top: var(--navbar-height);
            }
            .hero-banner {
                padding: 28px 0 24px;
            }
            .hero-banner h1 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section-block {
                padding: 36px 0;
            }
        }
        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
            .hero-banner h1 {
                font-size: 22px;
            }
            .hero-banner .subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .fixed-bottom-cta .cta-text {
                font-size: 12px;
            }
            .fixed-bottom-cta .btn-primary {
                padding: 10px 16px;
                font-size: 13px;
            }
            .fixed-bottom-cta .cta-text .hidden-mobile {
                display: none;
            }
        }

/* roulang page: category5 */
:root {
            --brand: #0B5FFF;
            --brand-dark: #0A4FDC;
            --brand-light: #E8F0FF;
            --brand-bg: #F4F7FB;
            --brand-text: #1B2A3A;
            --brand-muted: #66788B;
            --brand-border: #E9EEF5;
            --brand-amber: #FF8A00;
            --radius-card: 14px;
            --radius-btn: 10px;
            --shadow-card: 0 6px 18px rgba(2, 16, 45, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(2, 16, 45, 0.12);
            --shadow-float: 0 8px 32px rgba(2, 16, 45, 0.10);
            --sidebar-width: 240px;
            --navbar-height: 60px;
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 90px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--brand);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--brand-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #ffffff;
            border-right: 1px solid var(--brand-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
            box-shadow: 0 0 30px rgba(2, 16, 45, 0.04);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 20px 18px;
            border-bottom: 1px solid var(--brand-border);
            min-height: 68px;
        }
        .sidebar-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .sidebar-logo-text {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: 0.3px;
        }
        .sidebar-logo-text span {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--brand-muted);
        }
        .sidebar-nav {
            flex: 1;
            padding: 14px 0;
        }
        .sidebar-nav-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 8px 18px 6px;
        }
        .sidebar-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 18px;
            color: var(--brand-text);
            font-size: 14px;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .sidebar-nav-item i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: var(--brand-muted);
            transition: color var(--transition);
        }
        .sidebar-nav-item:hover {
            background: #f8fafc;
            color: var(--brand);
        }
        .sidebar-nav-item:hover i {
            color: var(--brand);
        }
        .sidebar-nav-item.active {
            background: var(--brand-light);
            border-left-color: var(--brand);
            color: var(--brand);
            font-weight: 600;
        }
        .sidebar-nav-item.active i {
            color: var(--brand);
        }
        .sidebar-footer {
            padding: 16px 18px;
            border-top: 1px solid var(--brand-border);
        }
        .sidebar-footer-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 11px;
            background: var(--brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .sidebar-footer-cta:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            transition: margin var(--transition);
        }
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--navbar-height);
            background: #ffffff;
            border-bottom: 1px solid var(--brand-border);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 22px;
            color: var(--brand-text);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .hamburger-btn:hover {
            background: #f8fafc;
        }
        .mobile-logo {
            font-weight: 700;
            font-size: 15px;
            color: var(--brand-text);
            flex: 1;
        }
        .mobile-cta {
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .mobile-cta:hover {
            background: var(--brand-dark);
        }
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(2, 16, 45, 0.45);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
            border: none;
            padding: 0;
        }
        .drawer-overlay.show {
            opacity: 1;
        }
        .drawer-close-btn {
            background: none;
            border: none;
            font-size: 20px;
            color: var(--brand-text);
            padding: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
        }
        .drawer-close-btn:hover {
            background: #f8fafc;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .card-hover {
            transition: all var(--transition);
        }
        .card-hover:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .badge-amber {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 138, 0, 0.1);
            color: #C46A00;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
        }
        .badge-blue {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            border: none;
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition);
            text-align: center;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand-text);
            border: 1px solid var(--brand-border);
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
        }
        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand);
            color: var(--brand);
        }
        .btn-outline:focus-visible {
            outline: 2px solid rgba(11, 95, 255, 0.4);
            outline-offset: 2px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-text);
            line-height: 1.3;
            letter-spacing: -0.2px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin-top: 8px;
        }
        .hero-banner {
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: 0 0 24px 24px;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(244, 247, 251, 0.95) 0%, rgba(244, 247, 251, 0.88) 100%);
            border-radius: 0 0 24px 24px;
        }
        .hero-banner-content {
            position: relative;
            z-index: 1;
            padding: 52px 32px 44px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: var(--brand-muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--brand);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--brand-dark);
        }
        .breadcrumb-sep {
            color: var(--brand-muted);
            font-size: 10px;
        }
        .faq-card {
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            background: #fff;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-card summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-card summary::-webkit-details-marker {
            display: none;
        }
        .faq-card summary:hover {
            background: #fafbfd;
        }
        .faq-card summary .fa-chevron-down {
            font-size: 13px;
            color: var(--brand-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-card[open] summary {
            background: var(--brand-light);
            color: var(--brand);
        }
        .faq-card[open] summary .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--brand);
        }
        .faq-card .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.75;
        }
        .inline-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            flex-shrink: 0;
        }
        .icon-blue {
            background: var(--brand-light);
            color: var(--brand);
        }
        .icon-amber {
            background: rgba(255, 138, 0, 0.12);
            color: #C46A00;
        }
        .icon-green {
            background: #E4F7EC;
            color: #1E8E4E;
        }
        .divider-light {
            height: 1px;
            background: var(--brand-border);
            width: 100%;
        }
        .footer {
            background: #ffffff;
            border-top: 1px solid var(--brand-border);
            padding: 48px 32px 32px;
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--brand-border);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--brand-muted);
        }
        .safety-bar {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition);
        }
        .safety-bar:hover {
            box-shadow: var(--shadow-card);
        }
        .safety-bar-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }
        .safety-bar-text {
            flex: 1;
            min-width: 0;
        }
        .safety-bar-title {
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-text);
            line-height: 1.4;
        }
        .safety-bar-desc {
            font-size: 12px;
            color: var(--brand-muted);
            line-height: 1.5;
            margin-top: 2px;
        }
        .safety-bar-badge {
            font-size: 12px;
            font-weight: 600;
            color: #1E8E4E;
            background: #E4F7EC;
            padding: 3px 8px;
            border-radius: 6px;
            flex-shrink: 0;
        }
        .step-card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card);
        }
        .step-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .step-number.amber {
            background: var(--brand-amber);
        }
        .step-title {
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.4;
        }
        .step-desc {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-top: 4px;
        }
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .drawer-overlay.show {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--navbar-height);
            }
            .container-custom {
                padding: 0 20px;
            }
            .hero-banner-content {
                padding: 36px 20px 32px;
            }
            .section-title {
                font-size: 24px;
            }
            .footer {
                padding: 36px 20px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
            .hero-banner-content {
                padding: 28px 16px 24px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-sub {
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .safety-bar {
                flex-wrap: wrap;
            }
            .safety-bar-badge {
                margin-left: auto;
            }
        }
        @media (min-width: 1025px) {
            .drawer-overlay {
                display: none !important;
            }
        }