/* roulang page: index */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        :focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 64px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }

        .section-header {
            margin-bottom: 42px;
        }

        .font-number {
            font-family: var(--font-number);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }

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

        .main-nav a:hover::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }

        .nav-cta:active {
            transform: translateY(1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }

        .hamburger:hover {
            background: var(--color-bg-alt);
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition) ease, opacity var(--transition) ease;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 16px;
            box-shadow: 0 8px 24px rgba(26, 60, 52, 0.08);
        }

        .mobile-menu a {
            font-size: 15px;
            color: var(--color-text-secondary);
            padding: 6px 0;
            transition: color var(--transition) ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-primary);
        }

        .mobile-menu .nav-cta {
            display: inline-block;
            text-align: center;
            margin-left: 0;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: stretch;
            background-color: var(--color-primary);
            background-image: linear-gradient(rgba(26, 60, 52, 0.85), rgba(26, 60, 52, 0.90)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            color: #FCFAF7;
            padding: 72px 0 64px;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 480px;
            gap: 48px;
            align-items: center;
        }

        .hero-left h1 {
            font-size: 48px;
            font-weight: 700;
            color: #FCFAF7;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .hero-left .h1-highlight {
            color: var(--color-secondary);
        }

        .hero-sub {
            font-size: 17px;
            color: rgba(252, 250, 247, 0.88);
            line-height: 1.85;
            margin-bottom: 28px;
            max-width: 520px;
        }

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

        .btn-primary {
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, color var(--transition) ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary-hero {
            background: rgba(252, 250, 247, 0.15);
            color: #FCFAF7;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(252, 250, 247, 0.3);
            transition: background var(--transition) ease, border-color var(--transition) ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-hero:hover {
            background: rgba(252, 250, 247, 0.25);
            border-color: rgba(252, 250, 247, 0.5);
        }

        .hero-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .hero-metric-card {
            background: rgba(252, 250, 247, 0.92);
            border: 1px solid rgba(229, 221, 211, 0.8);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-card);
            text-align: center;
            min-height: 110px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .hero-metric-card .metric-value {
            font-family: var(--font-number);
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .hero-metric-card .metric-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }

        .hero-data-panel {
            grid-column: 1 / -1;
            background: rgba(252, 250, 247, 0.95);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(229, 221, 211, 0.8);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-data-panel .data-row {
            display: flex;
            align-items: baseline;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-secondary);
        }

        .hero-data-panel .data-row strong {
            font-family: var(--font-number);
            font-size: 20px;
            color: var(--color-primary);
        }

        /* Pain Points */
        .pain-section {
            background-color: var(--color-bg);
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .pain-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

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

        .pain-card .pain-icon {
            width: 44px;
            height: 44px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
        }

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

        .pain-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* Brand Intro */
        .brand-section {
            background-color: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .brand-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            height: 320px;
            background-image: url('/assets/images/coverpic/cover-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .brand-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(26, 60, 52, 0.6), transparent);
            pointer-events: none;
        }

        .brand-content h2 {
            font-size: 28px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .brand-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        /* Steps */
        .steps-section {
            background-color: var(--color-bg);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

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

        .step-card .step-number {
            font-family: var(--font-number);
            font-size: 44px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1;
            display: block;
            margin-bottom: 14px;
        }

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

        .step-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* Metrics Dashboard */
        .metrics-section {
            background: var(--color-bg-alt);
        }

        .metrics-dashboard {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }

        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 32px;
        }

        .metrics-item {
            text-align: center;
            padding: 16px;
            background: var(--color-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
        }

        .metrics-item .metric-num {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .metrics-item .metric-tag {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }

        .metrics-comparison {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-top: 1px solid var(--color-border);
            padding-top: 28px;
        }

        .compare-panel {
            padding: 18px 22px;
        }

        .compare-panel:first-child {
            border-right: 1px solid var(--color-border);
        }

        .compare-panel h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-panel .data-line {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            padding: 8px 0;
            border-bottom: 1px solid rgba(229, 221, 211, 0.5);
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .compare-panel .data-line:last-child {
            border-bottom: none;
        }

        .compare-panel .data-line strong {
            font-family: var(--font-number);
            font-size: 20px;
            color: var(--color-primary);
        }

        .badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: var(--color-secondary);
            color: var(--color-text);
            letter-spacing: 0.02em;
        }

        .badge-verified {
            background: rgba(192, 155, 106, 0.2);
            color: var(--color-primary);
        }

        /* Service Matrix */
        .service-section {
            background: var(--color-bg);
        }

        .service-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }

        .service-main {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

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

        .service-card .service-index {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1;
            min-width: 48px;
        }

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

        .service-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        .service-side {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

        .service-side:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
        }

        .service-side-img {
            height: 200px;
            background-image: url('/assets/images/coverpic/cover-2.webp');
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }

        .service-side-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .service-side-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .service-side-body p {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Hot Topics */
        .topics-section {
            background: var(--color-bg-alt);
        }

        .topics-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-tag {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            transition: background var(--transition) ease, border-color var(--transition) ease, color var(--transition) ease;
        }

        .topic-tag:hover {
            background: var(--color-secondary);
            border-color: var(--color-secondary);
            color: var(--color-text);
        }

        .topic-tag:active {
            transform: translateY(1px);
        }

        .topic-tag.active-tag {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FCFAF7;
        }

        /* Rewards Preview */
        .rewards-section {
            background: var(--color-bg);
        }

        .rewards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .reward-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

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

        .reward-card .reward-icon {
            font-size: 36px;
            margin-bottom: 12px;
            display: block;
        }

        .reward-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .reward-card p {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .reward-card .reward-status {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(192, 155, 106, 0.15);
            color: var(--color-primary);
        }

        /* Timeline */
        .timeline-section {
            background: var(--color-bg-alt);
        }

        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--color-border);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 3px solid var(--color-bg);
            z-index: 1;
        }

        .timeline-item .tl-time {
            font-family: var(--font-number);
            font-size: 14px;
            color: var(--color-cta);
            font-weight: 600;
            display: block;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Content Calendar */
        .calendar-section {
            background: var(--color-bg);
        }

        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .calendar-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

        .calendar-item:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
        }

        .calendar-item .cal-day {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            display: block;
            line-height: 1.2;
        }

        .calendar-item .cal-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
            display: block;
        }

        /* FAQ */
        .faq-section {
            background: var(--color-bg-alt);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }

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

        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            user-select: none;
            transition: color var(--transition) ease;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition) ease;
            position: relative;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .faq-icon::before {
            width: 10px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 10px;
            transition: opacity var(--transition) ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 20px;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 16px 20px;
            border-top-color: var(--color-border);
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* CTA Form */
        .cta-section {
            background: var(--color-primary);
            background-image: linear-gradient(rgba(26, 60, 52, 0.90), rgba(26, 60, 52, 0.94)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 56px 0;
            color: #FCFAF7;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-left h2 {
            font-size: 30px;
            font-weight: 650;
            color: #FCFAF7;
            margin-bottom: 12px;
        }

        .cta-left p {
            font-size: 15px;
            color: rgba(252, 250, 247, 0.85);
            line-height: 1.8;
        }

        .cta-form {
            background: var(--color-card);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }

        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 6px;
        }

        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            font-size: 14px;
            color: var(--color-text);
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
            margin-bottom: 16px;
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--color-primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 111, 74, 0.25);
        }

        .btn-submit {
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 0;
            width: 100%;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease;
        }

        .btn-submit:hover {
            background: var(--color-primary);
        }

        .btn-submit:active {
            transform: translateY(1px);
        }

        .cta-form-note {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 10px;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-brand .logo-text {
            color: #FCFAF7;
        }

        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }

        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }

        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(216, 206, 194, 0.7);
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FCFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--color-footer-text);
            margin-bottom: 8px;
            transition: color var(--transition) ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(192, 155, 106, 0.25);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(216, 206, 194, 0.65);
        }

        .footer-bottom a {
            color: var(--color-footer-text);
            transition: color var(--transition) ease;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-right {
                max-width: 480px;
            }

            .hero-left h1 {
                font-size: 40px;
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: flex;
            }

            .mobile-menu.hidden {
                display: none;
            }

            .hero {
                padding: 48px 0;
                min-height: auto;
            }

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

            .hero-right {
                grid-template-columns: 1fr 1fr;
                max-width: 100%;
            }

            .hero-metric-card .metric-value {
                font-size: 24px;
            }

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

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

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

            .brand-image {
                height: 220px;
            }

            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .metrics-comparison {
                grid-template-columns: 1fr;
            }

            .compare-panel:first-child {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
            }

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

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

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

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

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

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

        @media (max-width: 375px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-left h1 {
                font-size: 30px;
            }

            .hero-right {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .hero-data-panel {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .metrics-row {
                grid-template-columns: 1fr;
            }

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

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

            .logo-text {
                font-size: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition) ease;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-header {
            margin-bottom: 42px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }
        .main-nav a:hover {
            color: var(--color-primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--color-primary);
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 4px;
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease, transform var(--transition) ease;
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }
        .nav-cta:active {
            transform: translateY(1px);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 4px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition) ease;
        }
        .hamburger:hover {
            background: var(--color-bg-alt);
        }
        .hamburger:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 4px;
        }
        .hamburger:active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger:active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger:active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero - 纯暖米白 + H1居中 */
        .hero-category2 {
            padding: 72px 0 56px;
            background: var(--color-bg);
            text-align: center;
            border-bottom: 1px solid var(--color-border);
        }
        .hero-category2 h1 {
            font-size: 48px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-category2 .hero-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin: 0 auto 32px;
        }
        .hero-badge-row {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-block;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            transition: border-color var(--transition) ease, background var(--transition) ease;
        }
        .hero-badge:hover {
            border-color: var(--color-secondary);
            background: var(--color-bg-alt);
        }

        /* 左侧筛选面板 + 右侧网格卡片 */
        .filter-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 32px;
            align-items: start;
        }
        .filter-panel {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: sticky;
            top: 96px;
        }
        .filter-panel h3 {
            font-size: 18px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }
        .filter-group {
            margin-bottom: 20px;
        }
        .filter-group:last-child {
            margin-bottom: 0;
        }
        .filter-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .filter-tag {
            font-size: 12.5px;
            padding: 5px 12px;
            border-radius: 20px;
            border: 1px solid var(--color-border);
            background: var(--color-bg);
            color: var(--color-text-secondary);
            transition: all var(--transition) ease;
            cursor: default;
        }
        .filter-tag:hover {
            border-color: var(--color-secondary);
            color: var(--color-primary);
        }
        .filter-tag.active {
            background: var(--color-primary);
            color: #FCFAF7;
            border-color: var(--color-primary);
        }
        .filter-select {
            width: 100%;
            padding: 8px 12px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 13.5px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235C564D' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            cursor: pointer;
        }
        .filter-select:hover {
            border-color: var(--color-secondary);
        }
        .filter-select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px rgba(201, 111, 74, 0.25);
            outline: none;
        }
        .filter-apply {
            width: 100%;
            padding: 10px 0;
            background: var(--color-primary);
            color: #FCFAF7;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition) ease, transform var(--transition) ease;
            margin-top: 20px;
        }
        .filter-apply:hover {
            background: var(--color-cta);
        }
        .filter-apply:active {
            transform: translateY(1px);
        }
        .filter-apply:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 4px;
        }

        .card-grid-2x2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .data-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease, transform var(--transition) ease;
        }
        .data-card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-card:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .data-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 400ms ease;
        }
        .data-card:hover img {
            transform: scale(1.02);
        }
        .data-card-body {
            padding: 18px 20px 20px;
        }
        .data-card-tag {
            display: inline-block;
            font-size: 11.5px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-bg-alt);
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .data-card-body h3 {
            font-size: 17px;
            font-weight: 650;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.45;
            letter-spacing: -0.01em;
        }
        .data-card-body p {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .data-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-text-secondary);
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }
        .data-card-meta .verified-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-secondary);
            color: var(--color-text);
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
        }
        .data-card-meta .verified-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--color-primary);
            border-radius: 50%;
        }

        /* 深度内容区域 */
        .depth-block {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
        }
        .depth-block h2 {
            font-size: 26px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }
        .depth-block p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .depth-block p:last-child {
            margin-bottom: 0;
        }
        .depth-block .highlight-num {
            font-family: var(--font-number);
            color: var(--color-cta);
            font-weight: 700;
        }

        /* 统计摘要行 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 32px 0;
        }
        .stat-mini {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
        }
        .stat-mini .stat-num {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-mini .stat-label {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* CTA 表单区域 */
        .cta-section {
            background: var(--color-primary);
            padding: 56px 0;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 650;
            color: #FCFAF7;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-info p {
            font-size: 14.5px;
            color: rgba(252, 250, 247, 0.75);
            line-height: 1.75;
        }
        .cta-form-card {
            background: var(--color-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid rgba(192, 155, 106, 0.3);
        }
        .cta-form-card .form-group {
            margin-bottom: 16px;
        }
        .cta-form-card label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 6px;
        }
        .cta-form-card input,
        .cta-form-card select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 14px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }
        .cta-form-card input:hover,
        .cta-form-card select:hover {
            border-color: var(--color-secondary);
        }
        .cta-form-card input:focus,
        .cta-form-card select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px rgba(201, 111, 74, 0.25);
            outline: none;
        }
        .cta-submit {
            width: 100%;
            padding: 12px 0;
            background: var(--color-cta);
            color: #FCFAF7;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, transform var(--transition) ease;
        }
        .cta-submit:hover {
            background: var(--color-primary);
        }
        .cta-submit:active {
            transform: translateY(1px);
        }
        .cta-submit:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 4px;
        }
        .cta-form-note {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 10px;
            text-align: center;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }
        .faq-item:hover {
            border-color: var(--color-secondary);
        }
        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition) ease;
        }
        .faq-question:hover {
            background: var(--color-bg-alt);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: -2px;
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border: 1.5px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition) ease;
            position: relative;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .faq-icon::before {
            width: 10px;
            height: 1.5px;
        }
        .faq-icon::after {
            width: 1.5px;
            height: 10px;
            transition: opacity var(--transition) ease;
        }
        .faq-item.active .faq-icon::after {
            opacity: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* Footer */
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(192, 155, 106, 0.25);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand .logo-text {
            color: var(--color-footer-text);
        }
        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }
        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }
        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }
        .footer-brand .logo-icon::after {
            background: var(--color-secondary);
            border-color: var(--color-footer);
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 650;
            color: var(--color-secondary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a,
        .footer-col span {
            display: block;
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            margin-bottom: 8px;
            transition: color var(--transition) ease;
        }
        .footer-col a:hover {
            color: var(--color-secondary);
        }
        .footer-col a:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 4px;
            border-radius: 2px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(192, 155, 106, 0.25);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(216, 206, 194, 0.6);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .footer-bottom-links a {
            color: rgba(216, 206, 194, 0.7);
            transition: color var(--transition) ease;
        }
        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-category2 h1 {
                font-size: 40px;
            }
            .filter-layout {
                grid-template-columns: 240px 1fr;
                gap: 24px;
            }
            .card-grid-2x2 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero-category2 {
                padding: 48px 0 40px;
            }
            .hero-category2 h1 {
                font-size: 32px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-bg);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 24px rgba(26, 60, 52, 0.1);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 15px;
                padding: 6px 0;
                width: 100%;
            }
            .main-nav .nav-cta {
                margin-left: 0;
                text-align: center;
                width: 100%;
            }
            .hamburger {
                display: flex;
            }
            .filter-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .filter-panel {
                position: static;
                top: auto;
            }
            .card-grid-2x2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-card img {
                height: 160px;
            }
            .depth-block {
                padding: 28px 20px;
            }
            .depth-block h2 {
                font-size: 22px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-mini .stat-num {
                font-size: 24px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-category2 h1 {
                font-size: 28px;
            }
            .hero-category2 .hero-desc {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .data-card img {
                height: 140px;
            }
            .data-card-body {
                padding: 14px 16px 16px;
            }
            .data-card-body h3 {
                font-size: 15px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-mini {
                padding: 12px 10px;
            }
            .stat-mini .stat-num {
                font-size: 20px;
            }
            .cta-form-card {
                padding: 20px 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14.5px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

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

        :focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 60px 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin: 0 0 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
            margin: 0;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }

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

        .main-nav a:hover::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease, transform var(--transition) ease;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }

        .nav-cta:active {
            transform: translateY(1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }

        .hamburger:hover {
            background: var(--color-bg-alt);
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
            transition: transform var(--transition) ease, opacity var(--transition) ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 16px 24px;
            gap: 4px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition) ease, padding var(--transition) ease;
        }

        .mobile-menu.open {
            max-height: 480px;
            padding: 16px 24px;
        }

        .mobile-menu a {
            font-size: 15px;
            color: var(--color-text-secondary);
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            transition: color var(--transition) ease, padding-left var(--transition) ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-primary);
            padding-left: 8px;
        }

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

        /* Hero */
        .hero-cat1 {
            position: relative;
            padding: 90px 0 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .hero-cat1::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--color-overlay);
            z-index: 1;
        }

        .hero-cat1 .container {
            position: relative;
            z-index: 2;
        }

        .hero-cat1-content {
            max-width: 720px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 4px 14px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-cat1 h1 {
            font-size: 48px;
            font-weight: 700;
            color: #FCFAF7;
            line-height: 1.28;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .hero-cat1 .hero-sub {
            font-size: 16px;
            color: rgba(252, 250, 247, 0.85);
            line-height: 1.7;
            margin: 0 0 30px;
            max-width: 580px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, transform var(--transition) ease;
        }

        .btn-primary:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(252, 250, 247, 0.12);
            color: #FCFAF7;
            border: 1px solid rgba(252, 250, 247, 0.35);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, border-color var(--transition) ease, color var(--transition) ease;
        }

        .btn-secondary:hover {
            background: rgba(252, 250, 247, 0.2);
            border-color: rgba(252, 250, 247, 0.6);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        /* Category 1 layout: numbered list + sidebar cards */
        .cat1-main-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items-start;
        }

        .cat1-numbered-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .cat1-list-item {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition) ease;
        }

        .cat1-list-item:hover {
            background: rgba(252, 250, 247, 0.5);
        }

        .cat1-list-num {
            font-family: var(--font-number);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-secondary);
            line-height: 1;
            min-width: 70px;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .cat1-list-body {
            flex: 1;
            min-width: 0;
        }

        .cat1-list-title {
            font-size: 18px;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .cat1-list-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 10px;
        }

        .cat1-date-badge {
            display: inline-flex;
            align-items: center;
            background: var(--color-bg-alt);
            color: var(--color-text-secondary);
            padding: 3px 12px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 500;
            border: 1px solid var(--color-border);
            transition: background var(--transition) ease, color var(--transition) ease;
        }

        .cat1-date-badge:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }

        .cat1-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 90px;
        }

        .cat1-side-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

        .cat1-side-card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
        }

        .cat1-side-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .cat1-side-body {
            padding: 18px 20px;
        }

        .cat1-side-title {
            font-size: 16px;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .cat1-side-text {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
        }

        .cat1-side-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-cta);
            transition: color var(--transition) ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cat1-side-link:hover {
            color: var(--color-primary);
        }

        /* Process steps */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }

        .process-step {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

        .process-step:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
        }

        .process-step-num {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-secondary);
            display: block;
            margin-bottom: 10px;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

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

        /* Deep content area */
        .deep-content {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
        }

        .deep-content h2 {
            font-size: 24px;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 16px;
            line-height: 1.35;
        }

        .deep-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0 0 16px;
        }

        .deep-content p:last-child {
            margin-bottom: 0;
        }

        /* FAQ Accordion */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }

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

        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: color var(--transition) ease;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-toggle-icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            position: relative;
            transition: transform var(--transition) ease;
        }

        .faq-toggle-icon::before,
        .faq-toggle-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--color-primary);
            border-radius: 1px;
            transition: transform var(--transition) ease;
        }

        .faq-toggle-icon::before {
            width: 14px;
            height: 2px;
        }

        .faq-toggle-icon::after {
            width: 2px;
            height: 14px;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        /* CTA Section */
        .cta-section-cat1 {
            background: var(--color-primary);
            padding: 60px 0;
        }

        .cta-inner-cat1 {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-text-cat1 {
            max-width: 500px;
        }

        .cta-text-cat1 h2 {
            font-size: 28px;
            font-weight: 650;
            color: #FCFAF7;
            margin: 0 0 12px;
            line-height: 1.35;
        }

        .cta-text-cat1 p {
            font-size: 15px;
            color: rgba(252, 250, 247, 0.8);
            line-height: 1.7;
            margin: 0;
        }

        .cta-form-cat1 {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 26px 28px;
            width: 400px;
            max-width: 100%;
        }

        .cta-form-cat1 label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text);
            display: block;
            margin-bottom: 6px;
        }

        .cta-form-cat1 input,
        .cta-form-cat1 select {
            width: 100%;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text);
            margin-bottom: 14px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

        .cta-form-cat1 input:focus,
        .cta-form-cat1 select:focus {
            border-color: var(--color-primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(201, 111, 74, 0.3);
        }

        .btn-form-submit {
            width: 100%;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease;
        }

        .btn-form-submit:hover {
            background: var(--color-primary);
        }

        .btn-form-submit:active {
            transform: translateY(1px);
        }

        .form-helper {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin: 10px 0 0;
            line-height: 1.5;
        }

        /* Footer */
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 50px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(192, 155, 106, 0.25);
        }

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

        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }

        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }

        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }

        .footer-brand .logo-icon::after {
            border-color: var(--color-footer);
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            line-height: 1.7;
            margin: 12px 0 0;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-footer-text);
            margin: 0 0 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a,
        .footer-col span {
            display: block;
            font-size: 13.5px;
            color: rgba(216, 206, 194, 0.7);
            margin-bottom: 8px;
            transition: color var(--transition) ease;
            line-height: 1.7;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
        }

        .footer-bottom span {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.6);
        }

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

        .footer-bottom-links a {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            transition: color var(--transition) ease;
        }

        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-cat1 h1 {
                font-size: 38px;
            }

            .cat1-main-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }

            .cat1-list-num {
                font-size: 30px;
                min-width: 56px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: flex;
            }

            .hero-cat1 {
                padding: 60px 0 56px;
                min-height: 340px;
            }

            .hero-cat1 h1 {
                font-size: 32px;
            }

            .hero-cat1 .hero-sub {
                font-size: 14px;
            }

            .section {
                padding: 42px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .cat1-main-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .cat1-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .cat1-side-card {
                flex: 1;
                min-width: 240px;
            }

            .cat1-list-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px 0;
            }

            .cat1-list-num {
                font-size: 28px;
                min-width: auto;
            }

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

            .cta-inner-cat1 {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-form-cat1 {
                width: 100%;
            }

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

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

            .hero-cat1 h1 {
                font-size: 28px;
            }

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

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

            .section-title {
                font-size: 23px;
            }

            .cat1-sidebar {
                flex-direction: column;
            }

            .cat1-side-card {
                min-width: auto;
            }

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

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

/* roulang page: category3 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition) ease, background var(--transition) ease, border-color var(--transition) ease;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }
        .section-header {
            margin-bottom: 42px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }
        .main-nav a:hover {
            color: var(--color-primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--color-primary);
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease, transform var(--transition) ease;
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }
        .nav-cta:active {
            transform: translateY(1px);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }
        .hamburger:hover {
            background: var(--color-bg-alt);
        }
        .hamburger:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition) ease, opacity var(--transition) ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 0;
            padding: 16px 24px 24px;
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }
        .mobile-nav a {
            padding: 12px 0;
            font-size: 16px;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-border);
            display: block;
            position: relative;
            transition: color var(--transition) ease, padding-left var(--transition) ease;
        }
        .mobile-nav a:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }
        .mobile-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .mobile-nav .nav-cta {
            margin-top: 12px;
            text-align: center;
            padding: 10px 18px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition) ease, color var(--transition) ease, transform var(--transition) ease, box-shadow var(--transition) ease;
            cursor: pointer;
            background: var(--color-secondary);
            color: var(--color-text);
            border: none;
            box-shadow: none;
        }
        .btn:hover {
            background: var(--color-cta);
            color: #FCFAF7;
            transform: translateY(-1px);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--color-cta);
            color: #FCFAF7;
        }
        .btn-primary:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary);
            color: #FCFAF7;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
            background: var(--color-bg-alt);
            color: var(--color-text-secondary);
        }
        .badge-primary {
            background: var(--color-primary);
            color: #FCFAF7;
        }
        .badge-secondary {
            background: var(--color-secondary);
            color: var(--color-text);
        }
        .badge-verified {
            background: var(--color-secondary);
            color: var(--color-text);
        }

        .card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease, transform var(--transition) ease;
        }
        .card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .info-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 1px;
            background: var(--color-border);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 28px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-secondary);
            border: 3px solid var(--color-card);
            box-shadow: 0 0 0 1px var(--color-border);
            z-index: 1;
        }
        .timeline-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }
        .timeline-card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
        }
        .timeline-date {
            font-family: var(--font-number);
            font-size: 13px;
            color: var(--color-text-secondary);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
            display: block;
        }
        .timeline-title {
            font-size: 18px;
            font-weight: 650;
            color: var(--color-primary);
            margin: 0 0 10px 0;
            line-height: 1.4;
        }
        .timeline-summary {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .tag-pill {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: background var(--transition) ease, color var(--transition) ease, border-color var(--transition) ease, transform var(--transition) ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .tag-pill:hover {
            background: var(--color-bg-alt);
            border-color: var(--color-secondary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }
        .tag-pill:active {
            transform: translateY(0);
        }
        .tag-pill:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .tag-pill.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FCFAF7;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }
        .faq-item:hover {
            border-color: var(--color-secondary);
        }
        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            cursor: pointer;
            background: none;
            border: none;
            transition: background var(--transition) ease;
        }
        .faq-question:hover {
            background: var(--color-bg-alt);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            position: relative;
            transition: transform var(--transition) ease;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 14px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition) ease;
        }
        .faq-icon::before {
            transform: translate(-50%, -50%);
        }
        .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }
        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(0deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            transition: max-height var(--transition) ease, padding var(--transition) ease;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px 20px;
        }
        .faq-item.open .faq-question {
            border-bottom: 1px solid var(--color-border);
        }

        .form-group {
            margin-bottom: 16px;
        }
        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .form-input,
        .form-select {
            width: 100%;
            padding: 10px 14px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--color-text);
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }
        .form-input:focus,
        .form-select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px rgba(201, 111, 74, 0.25);
        }
        .form-hint {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 6px;
            line-height: 1.6;
        }

        .brand-intro {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            display: flex;
            gap: 32px;
            align-items: center;
        }
        .brand-intro-content {
            flex: 1;
        }
        .brand-intro-title {
            font-size: 22px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 12px;
        }
        .brand-intro-text {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.85;
            margin: 0;
        }
        .brand-intro-image {
            width: 280px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav a {
                font-size: 13.5px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .brand-intro {
                flex-direction: column;
                padding: 24px;
            }
            .brand-intro-image {
                width: 100%;
                max-width: 400px;
                margin: 0 auto;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline::before {
                left: 8px;
            }
            .timeline-item {
                padding-left: 16px;
            }
            .timeline-item::before {
                left: -24px;
                width: 12px;
                height: 12px;
                top: 8px;
            }
            .timeline-card {
                padding: 16px 18px;
            }
            .tag-row {
                gap: 8px;
            }
            .tag-pill {
                padding: 6px 14px;
                font-size: 13px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                gap: 12px;
            }
            .logo-text {
                font-size: 16px;
            }
            .nav-cta {
                padding: 6px 12px;
                font-size: 13px;
            }
            .section-title {
                font-size: 24px;
            }
            .brand-intro {
                padding: 16px;
            }
            .brand-intro-title {
                font-size: 20px;
            }
            .timeline {
                padding-left: 16px;
            }
            .timeline-item {
                padding-left: 12px;
                margin-bottom: 20px;
            }
            .timeline-item::before {
                left: -16px;
                width: 10px;
                height: 10px;
                top: 10px;
            }
            .timeline-card {
                padding: 12px 14px;
            }
            .timeline-title {
                font-size: 16px;
            }
            .timeline-summary {
                font-size: 14px;
            }
        }

.site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(192,155,106,0.25);
            margin-bottom: 24px;
        }
        .footer-brand .logo-text {
            color: var(--color-footer-text);
        }
        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }
        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }
        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(216,206,194,0.7);
            margin-top: 12px;
            max-width: 260px;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(216,206,194,0.8);
            margin-bottom: 10px;
            transition: color var(--transition) ease, padding-left var(--transition) ease;
        }
        .footer-col a:hover {
            color: var(--color-secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(216,206,194,0.7);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(216,206,194,0.7);
        }
        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition) ease;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }
        .section-header {
            margin-bottom: 42px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }
        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }
        .main-nav a:hover {
            color: var(--color-primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--color-primary);
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease;
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }
        .nav-cta:active {
            transform: translateY(1px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }
        .hamburger:hover,
        .hamburger:focus {
            background: var(--color-bg-alt);
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .btn-primary {
            display: inline-block;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, color var(--transition) ease, transform var(--transition) ease;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 3px;
        }
        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--color-primary);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--color-primary);
            transition: background var(--transition) ease, color var(--transition) ease, border-color var(--transition) ease;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #FCFAF7;
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 3px;
        }
        .hero-category4 {
            background-color: var(--color-primary);
            padding: 72px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .hero-category4::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-category4 .container {
            position: relative;
            z-index: 1;
        }
        .hero-category4 h1 {
            font-size: 48px;
            font-weight: 700;
            color: #FCFAF7;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 680px;
        }
        .hero-category4 .hero-sub {
            font-size: 17px;
            color: rgba(252, 250, 247, 0.85);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 32px;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(252, 250, 247, 0.7);
            margin-bottom: 24px;
        }
        .hero-breadcrumb a {
            color: rgba(252, 250, 247, 0.85);
            transition: color var(--transition) ease;
        }
        .hero-breadcrumb a:hover {
            color: var(--color-secondary);
        }
        .hero-breadcrumb .sep {
            color: rgba(252, 250, 247, 0.5);
        }
        .summary-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: -32px;
            position: relative;
            z-index: 2;
            padding: 0 24px;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .summary-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition) ease, border-color var(--transition) ease;
        }
        .summary-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-secondary);
        }
        .summary-card-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .summary-card-value {
            font-family: var(--font-number);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .summary-card-value .unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-secondary);
            margin-left: 4px;
        }
        .summary-card-note {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }
        .data-table-wrapper {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14.5px;
        }
        .data-table thead th {
            background: var(--color-primary);
            color: #FCFAF7;
            font-weight: 600;
            font-size: 14px;
            padding: 16px 20px;
            text-align: left;
            letter-spacing: 0.02em;
            border-bottom: 2px solid var(--color-secondary);
            white-space: nowrap;
        }
        .data-table tbody td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
            vertical-align: top;
        }
        .data-table tbody tr:nth-child(even) {
            background-color: var(--color-bg-alt);
        }
        .data-table tbody tr:nth-child(odd) {
            background-color: #FCFAF7;
        }
        .data-table tbody tr:hover {
            background-color: rgba(192, 155, 106, 0.14);
            transition: background var(--transition) ease;
        }
        .data-table tbody tr:active {
            background-color: rgba(192, 155, 106, 0.22);
        }
        .data-table .num-cell {
            font-family: var(--font-number);
            font-weight: 600;
            color: var(--color-primary);
            font-size: 15px;
        }
        .data-table .badge-cell {
            display: inline-block;
            background: var(--color-secondary);
            color: var(--color-text);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .data-table .badge-cell.verified {
            background: var(--color-primary);
            color: #FCFAF7;
        }
        .table-note {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            padding: 16px 20px;
            border-top: 1px solid var(--color-border);
            background: var(--color-bg-alt);
        }
        .process-step {
            display: flex;
            gap: 20px;
            margin-bottom: 28px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--color-border);
        }
        .process-step:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .process-step-num {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-secondary);
            min-width: 56px;
            line-height: 1.2;
            flex-shrink: 0;
        }
        .process-step-content h3 {
            font-size: 18px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .process-step-content p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }
        .faq-item:hover {
            border-color: var(--color-secondary);
        }
        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition) ease;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question:active {
            color: var(--color-primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border: 1.5px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: transform var(--transition) ease;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .faq-icon::before {
            width: 10px;
            height: 1.5px;
        }
        .faq-icon::after {
            width: 1.5px;
            height: 10px;
            transition: transform var(--transition) ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
            border-top: 1px solid var(--color-border);
            padding-top: 16px;
        }
        .cta-form-section {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .cta-form-left h2 {
            font-size: 28px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-form-left p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 420px;
        }
        .cta-form-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .cta-form-field {
            margin-bottom: 18px;
        }
        .cta-form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .cta-form-input,
        .cta-form-select {
            width: 100%;
            background: #FCFAF7;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 15px;
            color: var(--color-text);
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }
        .cta-form-input:hover,
        .cta-form-select:hover {
            border-color: var(--color-secondary);
        }
        .cta-form-input:focus,
        .cta-form-select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px rgba(201, 111, 74, 0.35);
        }
        .cta-form-input:active,
        .cta-form-select:active {
            border-color: var(--color-primary);
        }
        .cta-form-submit {
            width: 100%;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            transition: background var(--transition) ease, color var(--transition) ease;
            cursor: pointer;
            border: none;
        }
        .cta-form-submit:hover {
            background: var(--color-primary);
            color: #FCFAF7;
        }
        .cta-form-submit:active {
            transform: translateY(1px);
        }
        .cta-form-submit:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 3px;
        }
        .cta-form-hint {
            margin-top: 12px;
            font-size: 12px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            text-align: center;
        }
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
        }
        .highlight-box {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-top: 24px;
        }
        .highlight-box-title {
            font-size: 16px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .highlight-box p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
            border-top: 4px solid var(--color-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo-text {
            color: #FCFAF7;
        }
        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.8);
            line-height: 1.7;
            margin-top: 10px;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 650;
            color: #FCFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(216, 206, 194, 0.75);
            margin-bottom: 8px;
            transition: color var(--transition) ease;
        }
        .footer-col a:hover {
            color: var(--color-secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(192, 155, 106, 0.25);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(216, 206, 194, 0.65);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(216, 206, 194, 0.75);
            transition: color var(--transition) ease;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }
        .page-cover-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            margin-top: 20px;
        }
        .page-cover-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .main-nav a {
                font-size: 13.5px;
                white-space: nowrap;
            }
            .nav-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .hero-category4 h1 {
                font-size: 40px;
            }
            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .summary-card-value {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-bg);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 12px 24px rgba(26, 60, 52, 0.08);
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 15px;
                width: 100%;
                padding: 6px 0;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                display: inline-block;
                width: auto;
            }
            .hero-category4 {
                padding: 48px 0 40px;
            }
            .hero-category4 h1 {
                font-size: 32px;
            }
            .hero-category4 .hero-sub {
                font-size: 15px;
            }
            .summary-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: -24px;
                padding: 0 16px;
            }
            .summary-card {
                padding: 20px;
            }
            .summary-card-value {
                font-size: 28px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .data-table thead {
                display: none;
            }
            .data-table tbody tr {
                display: block;
                margin-bottom: 12px;
                border: 1px solid var(--color-border);
                border-radius: var(--radius-md);
                overflow: hidden;
            }
            .data-table tbody td {
                display: flex;
                justify-content: space-between;
                align-items: flex-start;
                padding: 10px 14px;
                border-bottom: 1px solid var(--color-border);
                font-size: 13.5px;
            }
            .data-table tbody td:last-child {
                border-bottom: none;
            }
            .data-table tbody td::before {
                content: attr(data-label);
                font-weight: 600;
                color: var(--color-primary);
                margin-right: 12px;
                min-width: 80px;
                font-size: 13px;
                flex-shrink: 0;
            }
            .process-step {
                flex-direction: column;
                gap: 8px;
            }
            .process-step-num {
                font-size: 24px;
                min-width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
            .cta-form-left h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-category4 h1 {
                font-size: 28px;
            }
            .hero-category4 .hero-sub {
                font-size: 14px;
            }
            .section-title {
                font-size: 21px;
            }
            .summary-card-value {
                font-size: 26px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-bottom-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 64px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }

        .section-header {
            margin-bottom: 42px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }

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

        .main-nav a:hover::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }

        .nav-cta:active {
            transform: translateY(1px);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }

        .hamburger:hover {
            background: var(--color-bg-alt);
        }

        .hamburger:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition) ease, opacity var(--transition) ease;
        }

        /* Breadcrumb */
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }

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

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

        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--color-secondary);
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Hero - Category 6 */
        .cat6-hero {
            background-color: var(--color-bg);
            padding: 48px 0 36px;
            border-bottom: 1px solid var(--color-border);
        }

        .cat6-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cat6-hero h1 span {
            color: var(--color-primary);
        }

        .cat6-hero .hero-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 720px;
        }

        /* Filter Tags */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition) ease;
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--color-secondary);
            color: var(--color-primary);
            background: #FCFAF7;
        }

        .filter-tag.active {
            background: var(--color-primary);
            color: #FCFAF7;
            border-color: var(--color-primary);
        }

        .filter-tag:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .filter-tag:active {
            transform: translateY(1px);
        }

        /* Card Grid */
        .card-grid-dual {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 32px;
        }

        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
            display: flex;
            flex-direction: column;
        }

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

        .service-card:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .service-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--color-bg-alt);
        }

        .service-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .service-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-bottom: 10px;
        }

        .service-card .card-meta .tag-pill {
            background: var(--color-bg-alt);
            color: var(--color-primary);
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }

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

        .service-card .card-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-cta);
            margin-top: 14px;
            transition: color var(--transition) ease;
            align-self: flex-start;
        }

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

        /* Service Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .step-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
        }

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

        .step-card .step-num {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 10px;
        }

        .step-card .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .step-card .step-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* Stats */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            margin-top: 40px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-item .stat-num {
            font-family: var(--font-number);
            font-size: 30px;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 6px;
        }

        .stat-item .stat-label {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.85);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 32px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }

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

        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition) ease;
            background: none;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition) ease;
            position: relative;
        }

        .faq-icon::before {
            content: '';
            width: 10px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            position: absolute;
            transition: transform var(--transition) ease;
        }

        .faq-icon::after {
            content: '';
            width: 2px;
            height: 10px;
            background: var(--color-primary);
            border-radius: 2px;
            position: absolute;
            transition: transform var(--transition) ease;
        }

        .faq-item.open .faq-icon::after {
            transform: rotate(90deg);
        }

        .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: none;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
            margin: 0 20px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question {
            color: var(--color-primary);
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-bg-alt);
            border-radius: var(--radius-lg);
            padding: 44px 36px;
            margin-top: 48px;
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            align-items: center;
            justify-content: space-between;
        }

        .cta-section .cta-info h2 {
            font-size: 26px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .cta-section .cta-info p {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 420px;
        }

        .cta-section .cta-btn {
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 13px 30px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition) ease, color var(--transition) ease;
            white-space: nowrap;
        }

        .cta-section .cta-btn:hover {
            background: var(--color-secondary);
            color: var(--color-text);
        }

        .cta-section .cta-btn:active {
            transform: translateY(1px);
        }

        .cta-section .cta-btn:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-footer);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
            margin-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(192, 155, 106, 0.25);
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }

        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }

        .footer-brand .logo-icon::after {
            background: var(--color-secondary);
            border-color: var(--color-footer);
        }

        .footer-brand .logo-text {
            color: #D8CEC2;
        }

        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }

        .footer-desc {
            font-size: 13.5px;
            color: rgba(216, 206, 194, 0.7);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FCFAF7;
            margin-bottom: 14px;
        }

        .footer-col a,
        .footer-col span {
            display: block;
            font-size: 13.5px;
            color: rgba(216, 206, 194, 0.7);
            margin-bottom: 8px;
            transition: color var(--transition) ease;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            font-size: 12.5px;
            color: rgba(216, 206, 194, 0.55);
        }

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

        .footer-bottom-links a {
            color: rgba(216, 206, 194, 0.55);
            transition: color var(--transition) ease;
        }

        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }

            .main-nav a {
                font-size: 13.5px;
            }

            .card-grid-dual {
                gap: 16px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .cat6-hero h1 {
                font-size: 28px;
            }

            .card-grid-dual {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .service-card .card-img {
                height: 180px;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .step-card {
                padding: 18px 14px;
            }

            .step-card .step-num {
                font-size: 26px;
            }

            .stats-bar {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 24px 18px;
            }

            .stat-item .stat-num {
                font-size: 26px;
            }

            .cta-section {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
                gap: 20px;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }

            .hamburger {
                display: flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-bg);
                border-bottom: 1px solid var(--color-border);
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                box-shadow: 0 4px 16px rgba(26, 60, 52, 0.08);
            }

            .main-nav.mobile-open {
                display: flex;
            }

            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--color-border);
            }

            .main-nav a:last-of-type {
                border-bottom: none;
            }

            .main-nav .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                text-align: center;
                display: block;
            }

            .main-nav a::after {
                display: none;
            }
        }

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

            .cat6-hero {
                padding: 32px 0 24px;
            }

            .cat6-hero h1 {
                font-size: 24px;
            }

            .filter-tags {
                gap: 6px;
            }

            .filter-tag {
                padding: 6px 12px;
                font-size: 12.5px;
            }

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

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .step-card {
                display: flex;
                align-items: center;
                gap: 14px;
                text-align: left;
                padding: 14px 16px;
            }

            .step-card .step-num {
                margin-bottom: 0;
                flex-shrink: 0;
                width: 52px;
                text-align: center;
            }

            .step-card .step-desc {
                font-size: 12.5px;
            }

            .cta-section {
                padding: 22px 16px;
            }

            .cta-section .cta-info h2 {
                font-size: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

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

            .footer-bottom-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1A3C34;
            --color-secondary: #C09B6A;
            --color-bg: #F6F1EB;
            --color-text: #221F1A;
            --color-text-secondary: #5C564D;
            --color-cta: #C96F4A;
            --color-card: #FCFAF7;
            --color-border: #E5DDD3;
            --color-bg-alt: #EDE7DF;
            --color-footer: #1E1915;
            --color-footer-text: #D8CEC2;
            --color-overlay: rgba(26, 60, 52, 0.82);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 10px;
            --font-number: "DIN Alternate", "Roboto Condensed", "Segoe UI", sans-serif;
            --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --shadow-card: 0 2px 8px rgba(26, 60, 52, 0.06);
            --shadow-card-hover: 0 4px 14px rgba(26, 60, 52, 0.10);
            --transition: 200ms ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 64px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 650;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            max-width: 680px;
        }

        .section-header {
            margin-bottom: 42px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            transition: box-shadow var(--transition) ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(26, 60, 52, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border: 2px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::before {
            content: '5';
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            font-family: var(--font-number);
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: var(--color-secondary);
            border-radius: 50%;
            border: 1.5px solid var(--color-bg);
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 14.5px;
            color: var(--color-text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition) ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: width var(--transition) ease;
        }

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

        .main-nav a:hover::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--color-secondary);
            color: var(--color-text);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition) ease, color var(--transition) ease;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: var(--color-cta);
            color: #FCFAF7;
        }

        .nav-cta:active {
            transform: translateY(1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition) ease;
        }

        .hamburger:hover {
            background: var(--color-bg-alt);
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform var(--transition) ease, opacity var(--transition) ease;
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 16px;
                flex-wrap: wrap;
            }
            .main-nav a {
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-bg);
                flex-direction: column;
                padding: 20px 24px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 24px rgba(26, 60, 52, 0.10);
                gap: 12px;
                align-items: flex-start;
                z-index: 99;
            }
            .main-nav.nav-open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 8px 0;
                font-size: 15px;
            }
            .nav-cta {
                width: 100%;
                text-align: center;
                margin-left: 0;
                margin-top: 8px;
            }
        }

        /* Hero */
        .hero-cat {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 96px 0 80px;
        }

        .hero-cat::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--color-overlay);
            z-index: 1;
        }

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

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(252, 250, 247, 0.7);
            font-size: 13px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: var(--color-secondary);
            transition: color var(--transition) ease;
        }

        .hero-breadcrumb a:hover {
            color: #FCFAF7;
        }

        .hero-breadcrumb .sep {
            color: rgba(252, 250, 247, 0.4);
        }

        .hero-cat h1 {
            font-size: 52px;
            font-weight: 700;
            color: #FCFAF7;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
            max-width: 720px;
        }

        .hero-cat .hero-subtitle {
            font-size: 17px;
            color: rgba(252, 250, 247, 0.88);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 28px;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(252, 250, 247, 0.15);
            border: 1px solid rgba(252, 250, 247, 0.3);
            color: #FCFAF7;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .hero-badge .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-secondary);
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .hero-cat {
                padding: 60px 0 48px;
            }
            .hero-cat h1 {
                font-size: 32px;
            }
            .hero-cat .hero-subtitle {
                font-size: 15px;
            }
        }

        /* Main Layout: left content + right sticky CTA */
        .cat-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .cat-main-col {
            min-width: 0;
        }

        .cat-side-col {
            position: relative;
        }

        .sticky-cta {
            position: sticky;
            top: 88px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition) ease, border-color var(--transition) ease;
        }

        .sticky-cta:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-secondary);
        }

        .sticky-cta h3 {
            font-size: 19px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .sticky-cta p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.65;
            margin-bottom: 18px;
        }

        .sticky-cta .cta-primary {
            display: block;
            width: 100%;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            transition: background var(--transition) ease, transform var(--transition) ease;
            margin-bottom: 14px;
        }

        .sticky-cta .cta-primary:hover {
            background: var(--color-primary);
        }

        .sticky-cta .cta-primary:active {
            transform: translateY(1px);
        }

        .sticky-cta .cta-secondary {
            display: block;
            width: 100%;
            background: transparent;
            color: var(--color-primary);
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 500;
            text-align: center;
            transition: border-color var(--transition) ease, color var(--transition) ease, background var(--transition) ease;
            margin-bottom: 10px;
        }

        .sticky-cta .cta-secondary:hover {
            border-color: var(--color-primary);
            background: var(--color-bg-alt);
        }

        .sticky-cta .cta-helper-links {
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
            margin-top: 4px;
        }

        .sticky-cta .cta-helper-links a {
            display: block;
            font-size: 13px;
            color: var(--color-text-secondary);
            padding: 6px 0;
            transition: color var(--transition) ease;
        }

        .sticky-cta .cta-helper-links a:hover {
            color: var(--color-cta);
        }

        .content-block {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            margin-bottom: 28px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition) ease, border-color var(--transition) ease;
        }

        .content-block:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-secondary);
        }

        .content-block .block-tag {
            display: inline-block;
            background: var(--color-bg-alt);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .content-block h2 {
            font-size: 22px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }

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

        .content-block img {
            border-radius: var(--radius-md);
            margin: 16px 0;
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        .content-block .block-list {
            list-style: none;
            padding: 0;
            margin: 12px 0 0;
        }

        .content-block .block-list li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .content-block .block-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 2px;
            background: var(--color-secondary);
            border-radius: 1px;
        }

        @media (max-width: 1024px) {
            .cat-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .cat-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cat-side-col {
                display: none;
            }
            .sticky-cta {
                position: static;
            }
            .content-block {
                padding: 24px 18px;
            }
            .content-block h2 {
                font-size: 19px;
            }
        }

        /* Mobile fixed bottom CTA bar */
        .mobile-cta-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            padding: 10px 16px;
            box-shadow: 0 -4px 16px rgba(26, 60, 52, 0.10);
            gap: 10px;
            align-items: center;
        }

        .mobile-cta-bar .m-cta-primary {
            flex: 1;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            text-align: center;
            transition: background var(--transition) ease;
        }

        .mobile-cta-bar .m-cta-primary:hover {
            background: var(--color-primary);
        }

        .mobile-cta-bar .m-cta-secondary {
            flex: 0 0 auto;
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 500;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            transition: border-color var(--transition) ease, background var(--transition) ease;
            white-space: nowrap;
        }

        .mobile-cta-bar .m-cta-secondary:hover {
            border-color: var(--color-primary);
            background: var(--color-bg-alt);
        }

        @media (max-width: 768px) {
            .mobile-cta-bar {
                display: flex;
            }
            body {
                padding-bottom: 70px;
            }
            .site-footer {
                margin-bottom: 0;
            }
        }

        /* Security Metrics */
        .sec-metrics {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .sec-metric-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition) ease, border-color var(--transition) ease;
        }

        .sec-metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-secondary);
        }

        .sec-metric-card .metric-num {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .sec-metric-card .metric-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .sec-metrics {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .sec-metric-card {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 16px;
                padding: 16px 18px;
            }
            .sec-metric-card .metric-num {
                font-size: 28px;
                margin-bottom: 0;
                min-width: 70px;
                text-align: center;
            }
        }

        /* Protocol Checklist */
        .protocol-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .protocol-item {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            transition: border-color var(--transition) ease, background var(--transition) ease;
        }

        .protocol-item:hover {
            border-color: var(--color-secondary);
            background: var(--color-card);
        }

        .protocol-item .protocol-num {
            font-family: var(--font-number);
            font-size: 14px;
            font-weight: 700;
            color: var(--color-secondary);
            display: block;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .protocol-item .protocol-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .protocol-item .protocol-desc {
            font-size: 12.5px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

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

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

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition) ease;
        }

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

        .faq-item:focus-within {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition) ease;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border: 1.5px solid var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: transform var(--transition) ease, border-color var(--transition) ease;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-primary);
            transition: transform var(--transition) ease;
        }

        .faq-icon::before {
            width: 10px;
            height: 1.5px;
        }

        .faq-icon::after {
            width: 1.5px;
            height: 10px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            border-color: var(--color-cta);
        }

        .faq-item.active .faq-icon::before,
        .faq-item.active .faq-icon::after {
            background: var(--color-cta);
        }

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

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        /* CTA Form Section */
        .cta-section {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .cta-form-left h2 {
            font-size: 30px;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .cta-form-left p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 380px;
        }

        .cta-form {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }

        .cta-form .form-group {
            margin-bottom: 16px;
        }

        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .cta-form input,
        .cta-form select {
            width: 100%;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--color-text);
            transition: border-color var(--transition) ease, box-shadow var(--transition) ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .cta-form input:focus,
        .cta-form select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 2px var(--color-cta);
        }

        .cta-form .form-submit {
            width: 100%;
            background: var(--color-cta);
            color: #FCFAF7;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            transition: background var(--transition) ease, transform var(--transition) ease;
            margin-top: 4px;
        }

        .cta-form .form-submit:hover {
            background: var(--color-primary);
        }

        .cta-form .form-submit:active {
            transform: translateY(1px);
        }

        .cta-form .form-helper {
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 12px;
            text-align: center;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-form-left h2 {
                font-size: 24px;
            }
            .cta-form {
                padding: 20px 16px;
            }
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand .logo-icon {
            border-color: var(--color-secondary);
        }

        .footer-brand .logo-icon::before {
            color: var(--color-secondary);
        }

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

        .footer-brand .logo-text span {
            color: var(--color-secondary);
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 650;
            color: #FCFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(216, 206, 194, 0.7);
            padding: 5px 0;
            transition: color var(--transition) ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(192, 155, 106, 0.25);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(216, 206, 194, 0.6);
        }

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

        .footer-bottom-links a {
            color: rgba(216, 206, 194, 0.7);
            transition: color var(--transition) ease;
        }

        .footer-bottom-links a:hover {
            color: var(--color-secondary);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom-links {
                gap: 10px;
            }
        }

        /* Button/hover/focus/active global */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-cta);
            outline-offset: 2px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }