/* roulang page: index */
:root {
            --primary: #1A3C34;
            --primary-dark: #0F2A24;
            --primary-light: #2A5248;
            --accent: #C8A05C;
            --accent-hover: #B58E4A;
            --bg: #F8F6F2;
            --card-bg: #FFFFFF;
            --text-primary: #1F1F1F;
            --text-secondary: #5A5A5A;
            --text-muted: #8A8A8A;
            --border: #E5E0D8;
            --border-dark: #D5CFC4;
            --dark-text: #F0EEE8;
            --dark-bg: #142D26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }
        :focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        :focus:not(:focus-visible) {
            outline: none;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* Container */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /*========== HEADER NAV ==========*/
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            height: 72px;
            transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--border-dark);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon .accent-text {
            color: var(--accent);
        }
        .site-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .site-logo .logo-text .dot {
            color: var(--accent);
        }
        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 24px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-cta-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 60, 52, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 60, 52, 0.32);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 60, 52, 0.2);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(26, 60, 52, 0.06);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--accent);
            color: #FFFFFF;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(200, 160, 92, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 160, 92, 0.4);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 9px 16px;
            font-size: 14px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 10px;
        }
        .btn-block {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--primary);
            padding: 4px 8px;
            cursor: pointer;
        }

        /* Mobile nav */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            padding: 20px 24px 24px;
            z-index: 999;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            max-height: calc(100vh - 72px);
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: block;
        }
        .mobile-nav-panel .mobile-nav-link {
            display: block;
            padding: 12px 0;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border);
            transition: color var(--transition), padding-left var(--transition);
        }
        .mobile-nav-panel .mobile-nav-link:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .mobile-nav-panel .mobile-nav-link.active {
            color: var(--primary);
            font-weight: 600;
            border-left: 3px solid var(--accent);
            padding-left: 10px;
        }
        .mobile-nav-panel .mobile-cta-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        /*========== HERO ==========*/
        .hero-section {
            padding-top: 72px;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
            position: relative;
            overflow: hidden;
            min-height: 620px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 50px 0 60px;
        }
        .hero-content {
            flex: 1 1 55%;
            max-width: 600px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(200, 160, 92, 0.12);
            color: var(--accent-hover);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            border: 1px solid rgba(200, 160, 92, 0.3);
        }
        .hero-badge i {
            font-size: 12px;
        }
        .hero-content h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            margin: 0 0 18px 0;
            letter-spacing: -0.5px;
        }
        .hero-content h1 .highlight {
            color: var(--accent);
            position: relative;
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 540px;
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            transition: color var(--transition);
        }
        .text-link i {
            transition: transform var(--transition);
        }
        .text-link:hover {
            color: var(--accent-hover);
        }
        .text-link:hover i {
            transform: translateX(4px);
        }
        .hero-data-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-data-item .hero-data-num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-data-item .hero-data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .hero-visual {
            flex: 1 1 40%;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .progress-ring-card {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 28px;
            color: var(--dark-text);
            display: flex;
            align-items: center;
            gap: 24px;
            box-shadow: var(--shadow-lg);
        }
        .progress-ring {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: conic-gradient(var(--accent) 0deg, var(--accent) 331.2deg, rgba(255, 255, 255, 0.12) 331.2deg, rgba(255, 255, 255, 0.12) 360deg);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .progress-ring::after {
            content: '';
            position: absolute;
            inset: 10px;
            background: var(--dark-bg);
            border-radius: 50%;
        }
        .progress-ring .ring-value {
            position: relative;
            z-index: 1;
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
        }
        .progress-ring .ring-value small {
            font-size: 14px;
            color: var(--accent);
        }
        .ring-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 8px;
            color: #FFFFFF;
        }
        .ring-info p {
            font-size: 14px;
            color: rgba(240, 238, 232, 0.75);
            line-height: 1.6;
            margin: 0;
        }
        .ring-info .ring-progress-label {
            display: inline-block;
            background: rgba(200, 160, 92, 0.2);
            color: var(--accent);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .hero-tier-preview {
            display: flex;
            gap: 12px;
        }
        .tier-mini-card {
            flex: 1;
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition);
            cursor: default;
        }
        .tier-mini-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .tier-mini-card .tier-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .tier-mini-card .tier-point {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .tier-mini-card .tier-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }
        .tier-mini-card.recommended {
            border-color: var(--accent);
            background: rgba(200, 160, 92, 0.06);
            position: relative;
        }
        .tier-mini-card.recommended::before {
            content: '推荐';
            position: absolute;
            top: -8px;
            right: 12px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 10px;
        }

        /*========== SECTION COMMON ==========*/
        .section-block {
            padding: var(--section-pad) 0;
        }
        .section-block.bg-white {
            background: #FFFFFF;
        }
        .section-block.bg-light {
            background: var(--bg);
        }
        .section-block.bg-muted-light {
            background: #F2EFEA;
        }
        .section-block.bg-dark {
            background: var(--dark-bg);
            color: var(--dark-text);
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }
        .section-title.text-light {
            color: var(--dark-text);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 36px;
            max-width: 700px;
        }
        .section-subtitle.text-light {
            color: rgba(240, 238, 232, 0.75);
        }
        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }
        .section-header-row .left-col {
            max-width: 700px;
        }
        .section-header-row .right-col {
            flex-shrink: 0;
        }
        .section-tag {
            display: inline-block;
            background: rgba(200, 160, 92, 0.12);
            color: var(--accent-hover);
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            border: 1px solid rgba(200, 160, 92, 0.3);
        }
        .section-tag.light {
            background: rgba(200, 160, 92, 0.18);
            color: var(--accent);
            border-color: rgba(200, 160, 92, 0.35);
        }

        /*========== SERIES NAV ==========*/
        .series-nav-section {
            padding: 0 0 48px;
        }
        .series-nav-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }
        .series-nav-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 14px;
            text-align: center;
            transition: all var(--transition);
            display: block;
            text-decoration: none;
        }
        .series-nav-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .series-nav-card .sn-icon {
            width: 40px;
            height: 40px;
            border: 2px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            color: var(--primary);
            font-size: 16px;
            transition: all var(--transition);
        }
        .series-nav-card:hover .sn-icon {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .series-nav-card .sn-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }
        .series-nav-card .sn-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin: 4px 0 0;
            line-height: 1.4;
        }

        /*========== METRICS ==========*/
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }
        .metric-card:hover::before {
            transform: scaleX(1);
        }
        .metric-num {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .metric-num .metric-unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--accent);
            margin-left: 2px;
        }
        .metric-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .metric-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        /*========== BRAND INTRO ==========*/
        .brand-intro-section {
            background: #FFFFFF;
        }
        .brand-intro-inner {
            display: flex;
            gap: 40px;
            align-items: flex-start;
        }
        .brand-intro-text {
            flex: 1 1 65%;
        }
        .brand-intro-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }
        .brand-intro-text p:last-child {
            margin-bottom: 0;
        }
        .brand-intro-quote {
            flex: 1 1 30%;
            background: var(--bg);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 24px 28px;
        }
        .brand-intro-quote p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            font-style: italic;
        }
        .brand-intro-quote .quote-author {
            display: block;
            margin-top: 12px;
            font-style: normal;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
        }

        /*========== SERVICE MATRIX ==========*/
        .service-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
        }
        .service-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .service-card .sc-icon-wrapper {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            font-size: 18px;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .service-card:hover .sc-icon-wrapper {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .service-card .sc-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.4;
        }
        .service-card .sc-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex-grow: 1;
        }
        .service-card .sc-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
        }
        .service-card .sc-link i {
            transition: transform var(--transition);
        }
        .service-card:hover .sc-link {
            color: var(--accent-hover);
        }
        .service-card:hover .sc-link i {
            transform: translateX(4px);
        }

        /*========== DEEP CONTENT ==========*/
        .deep-content {
            max-width: 840px;
        }
        .deep-content h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin: 32px 0 12px;
            line-height: 1.4;
        }
        .deep-content h3:first-child {
            margin-top: 0;
        }
        .deep-content p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }
        .deep-content .data-inline-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 20px 0;
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            align-items: center;
        }
        .deep-content .data-inline-card .dic-item .dic-num {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }
        .deep-content .data-inline-card .dic-item .dic-label {
            font-size: 13px;
            color: var(--text-muted);
        }
        .deep-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .deep-content table th {
            background: var(--primary);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            padding: 12px 16px;
            text-align: left;
        }
        .deep-content table td {
            padding: 10px 16px;
            font-size: 14px;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
        }
        .deep-content table tr:last-child td {
            border-bottom: none;
        }
        .deep-content table tr:hover td {
            background: rgba(200, 160, 92, 0.05);
        }

        /*========== COMPARISON ==========*/
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .comparison-col {
            padding: 36px 32px;
        }
        .comparison-col.dark {
            background: var(--primary);
            color: var(--dark-text);
        }
        .comparison-col.light {
            background: #FFFFFF;
            color: var(--text-primary);
            border: 1px solid var(--border);
            border-left: none;
        }
        .comparison-col h4 {
            font-size: 19px;
            font-weight: 600;
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .comparison-col.dark h4 {
            color: #FFFFFF;
        }
        .comparison-col.light h4 {
            color: var(--primary);
        }
        .comparison-col ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .comparison-col ul li {
            font-size: 14px;
            line-height: 1.7;
            padding: 8px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .comparison-col.dark ul li {
            border-bottom-color: rgba(255, 255, 255, 0.1);
            color: rgba(240, 238, 232, 0.85);
        }
        .comparison-col.light ul li {
            color: var(--text-secondary);
        }
        .comparison-col ul li i {
            color: var(--accent);
            margin-top: 3px;
            flex-shrink: 0;
        }
        .comparison-col .highlight-conclusion {
            font-weight: 600;
            font-size: 15px;
            margin: 0;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
        }
        .comparison-col.dark .highlight-conclusion {
            background: rgba(200, 160, 92, 0.15);
            color: var(--accent);
        }
        .comparison-col.light .highlight-conclusion {
            background: rgba(26, 60, 52, 0.06);
            color: var(--primary);
        }

        /*========== HOT PICKS / SHOWCASE ==========*/
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .showcase-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }
        .showcase-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .showcase-card .showcase-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .showcase-card .showcase-img .showcase-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 14px;
        }
        .showcase-card .showcase-body {
            padding: 20px 22px;
        }
        .showcase-card .showcase-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .showcase-card .showcase-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 14px;
        }
        .showcase-card .showcase-body .sc-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }
        .showcase-card:hover .showcase-body .sc-link {
            color: var(--accent-hover);
        }

        /*========== NEWS ==========*/
        .news-list {
            max-width: 900px;
        }
        .news-item {
            display: flex;
            gap: 24px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-date {
            flex-shrink: 0;
            width: 80px;
            text-align: center;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
            height: fit-content;
        }
        .news-date .nd-day {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .news-date .nd-month {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .news-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .news-content .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 10px;
        }
        .news-content .news-read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition);
        }
        .news-content .news-read-more i {
            transition: transform var(--transition);
        }
        .news-content .news-read-more:hover {
            color: var(--accent-hover);
        }
        .news-content .news-read-more:hover i {
            transform: translateX(4px);
        }

        /*========== MEMBERSHIP / PRICING ==========*/
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .pricing-card.featured {
            border-color: var(--accent);
            background: rgba(200, 160, 92, 0.04);
            box-shadow: var(--shadow-md);
        }
        .pricing-card .pc-badge {
            position: absolute;
            top: -10px;
            right: 20px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 12px;
        }
        .pricing-card .pc-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }
        .pricing-card .pc-price {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin: 12px 0 4px;
        }
        .pricing-card .pc-price small {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .pricing-card .pc-unit {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .pricing-card ul.pc-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            flex-grow: 1;
        }
        .pricing-card ul.pc-features li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-card ul.pc-features li i {
            color: var(--accent);
            font-size: 13px;
        }
        .pricing-card .pc-cta {
            width: 100%;
            margin-top: auto;
        }

        /*========== TRUST BAR ==========*/
        .trust-bar {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            transition: all var(--transition);
        }
        .trust-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .trust-item i {
            color: var(--accent);
            font-size: 18px;
        }
        .trust-item span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
        }

        /*========== FAQ ==========*/
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion {
            border: none;
            background: transparent;
        }
        .accordion-item {
            border: none;
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }
        .accordion-item:last-child {
            border-bottom: 1px solid var(--border);
        }
        .accordion-title {
            background: transparent;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 40px 18px 0;
            border: none;
            position: relative;
            cursor: pointer;
            transition: color var(--transition);
        }
        .accordion-title:hover {
            color: var(--primary);
        }
        .accordion-title::after {
            content: '+';
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }
        .accordion-item.is-active .accordion-title::after {
            content: '−';
            transform: translateY(-50%) rotate(180deg);
            color: var(--accent);
        }
        .accordion-content {
            background: transparent;
            border: none;
            padding: 0 0 18px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            border-left: 3px solid transparent;
        }
        .accordion-item.is-active .accordion-content {
            border-left-color: var(--accent);
            background: rgba(200, 160, 92, 0.04);
            padding-left: 16px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        /*========== CTA FORM ==========*/
        .cta-form-section {
            background: var(--dark-bg);
            color: var(--dark-text);
            padding: 64px 0;
        }
        .cta-form-inner {
            display: flex;
            gap: 48px;
            align-items: center;
        }
        .cta-form-left {
            flex: 1 1 45%;
        }
        .cta-form-left h3 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .cta-form-left p {
            font-size: 15px;
            color: rgba(240, 238, 232, 0.7);
            line-height: 1.7;
            margin: 0;
        }
        .cta-form-right {
            flex: 1 1 50%;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
        }
        .cta-form-right label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            display: block;
            margin-bottom: 6px;
        }
        .cta-form-right input,
        .cta-form-right select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-primary);
            background: #FFFFFF;
            transition: border-color var(--transition), box-shadow var(--transition);
            margin-bottom: 16px;
        }
        .cta-form-right input:focus,
        .cta-form-right select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(200, 160, 92, 0.25);
            outline: none;
        }
        .cta-form-right input::placeholder {
            color: var(--text-muted);
        }
        .cta-form-right .form-row {
            display: flex;
            gap: 14px;
        }
        .cta-form-right .form-row .form-group {
            flex: 1;
        }

        /*========== FOOTER ==========*/
        .site-footer {
            background: #0F2A24;
            color: rgba(240, 238, 232, 0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand .fb-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .footer-brand .fb-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(240, 238, 232, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(240, 238, 232, 0.7);
            font-size: 14px;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copyright {
            font-size: 13px;
            color: rgba(240, 238, 232, 0.55);
        }
        .footer-bottom .beian-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .footer-bottom .beian-links a {
            color: rgba(240, 238, 232, 0.55);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-bottom .beian-links a:hover {
            color: var(--accent);
        }

        /*========== RESPONSIVE ==========*/
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .nav-links-wrapper {
                gap: 18px;
                margin: 0 14px;
            }
            .nav-link {
                font-size: 14px;
            }
            .site-logo .logo-text {
                font-size: 18px;
            }
            .hero-content h1 {
                font-size: 40px;
            }
            .series-nav-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .service-matrix-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .showcase-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .hero-inner {
                gap: 36px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
            .site-header {
                height: 60px;
            }
            .site-header .container-custom {
                height: 60px;
            }
            .site-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
                border-radius: 8px;
            }
            .site-logo .logo-text {
                font-size: 16px;
            }
            .nav-links-wrapper,
            .nav-cta-wrapper {
                display: none;
            }
            .mobile-toggle {
                display: block;
                font-size: 22px;
                padding: 2px 6px;
            }
            .mobile-nav-panel {
                top: 60px;
                max-height: calc(100vh - 60px);
            }
            .hero-section {
                padding-top: 60px;
                min-height: auto;
            }
            .hero-inner {
                flex-direction: column;
                gap: 32px;
                padding: 36px 0 40px;
            }
            .hero-content h1 {
                font-size: 32px;
                letter-spacing: -0.3px;
            }
            .hero-subtitle {
                font-size: 15px;
                margin-bottom: 20px;
            }
            .hero-cta-group {
                gap: 14px;
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-data-row {
                gap: 20px;
            }
            .hero-visual {
                width: 100%;
            }
            .progress-ring-card {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .progress-ring {
                width: 96px;
                height: 96px;
            }
            .hero-tier-preview {
                flex-direction: column;
            }
            .section-title {
                font-size: 24px;
            }
            .section-header-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 24px;
            }
            .series-nav-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 20px 22px;
            }
            .metric-num {
                font-size: 28px;
            }
            .brand-intro-inner {
                flex-direction: column;
                gap: 24px;
            }
            .brand-intro-quote {
                width: 100%;
                padding: 18px 20px;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card {
                padding: 22px 20px;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .showcase-card .showcase-img {
                height: 160px;
            }
            .comparison-col {
                padding: 24px 20px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .pricing-card {
                padding: 24px 20px;
            }
            .cta-form-inner {
                flex-direction: column;
                gap: 24px;
            }
            .cta-form-right {
                padding: 24px 20px;
                width: 100%;
            }
            .cta-form-right .form-row {
                flex-direction: column;
                gap: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
                gap: 8px;
            }
            .footer-bottom .beian-links {
                justify-content: center;
                gap: 10px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
            }
            .news-date {
                width: 100%;
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 8px;
                padding: 6px 10px;
            }
            .news-date .nd-day {
                font-size: 20px;
            }
            .trust-bar {
                flex-direction: column;
            }
            .trust-item {
                justify-content: center;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
            }
            .deep-content .data-inline-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .hero-content h1 {
                font-size: 28px;
            }
            .series-nav-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .series-nav-card {
                display: flex;
                align-items: center;
                gap: 12px;
                text-align: left;
                padding: 12px 16px;
            }
            .series-nav-card .sn-icon {
                margin: 0;
                width: 36px;
                height: 36px;
                font-size: 14px;
                flex-shrink: 0;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 24px;
            }
            .deep-content h3 {
                font-size: 19px;
                margin: 24px 0 10px;
            }
            .deep-content p {
                font-size: 15px;
            }
            .deep-content table th,
            .deep-content table td {
                padding: 8px 10px;
                font-size: 13px;
            }
            .showcase-card .showcase-img {
                height: 140px;
            }
            .pricing-card .pc-price {
                font-size: 30px;
            }
            .cta-form-section {
                padding: 40px 0;
            }
            .cta-form-left h3 {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A3C34;
            --primary-dark: #0F2A24;
            --primary-light: #2A5248;
            --accent: #C8A05C;
            --accent-hover: #B58E4A;
            --bg: #F8F6F2;
            --card-bg: #FFFFFF;
            --text-primary: #1F1F1F;
            --text-secondary: #5A5A5A;
            --text-muted: #8A8A8A;
            --border: #E5E0D8;
            --border-dark: #D5CFC4;
            --dark-text: #F0EEE8;
            --dark-bg: #142D26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --section-pad: 56px;
            --section-pad-mobile: 40px;
            --max-width: 1200px;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }

        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }

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

        /*========== HEADER NAV ==========*/
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            height: 72px;
            transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--border-dark);
        }

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

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

        .site-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

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

        .site-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

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

        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 24px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }

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

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

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

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

        .nav-cta-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 60, 52, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            box-shadow: 0 6px 18px rgba(26, 60, 52, 0.3);
            transform: translateY(-1px);
        }

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

        .btn-outline:hover {
            background: rgba(26, 60, 52, 0.06);
            color: var(--primary);
            border-color: var(--primary-dark);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(200, 160, 92, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary-dark);
            box-shadow: 0 6px 18px rgba(200, 160, 92, 0.4);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 24px;
            padding: 8px;
            cursor: pointer;
        }

        /* Mobile nav */
        @media (max-width: 1023px) {
            .nav-links-wrapper {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
                margin: 0;
            }

            .nav-links-wrapper.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }

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

            .nav-cta-wrapper {
                display: none;
            }

            .nav-links-wrapper.open .nav-cta-wrapper {
                display: flex;
                flex-direction: column;
                width: 100%;
                gap: 10px;
                margin-top: 16px;
            }

            .nav-links-wrapper.open .nav-cta-wrapper .btn {
                width: 100%;
            }

            .mobile-toggle {
                display: block;
            }
        }

        @media (max-width: 767px) {
            .site-header {
                height: 60px;
            }

            .site-logo .logo-text {
                font-size: 17px;
            }

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

            .nav-links-wrapper {
                top: 60px;
            }
        }

        /*========== BREADCRUMB ==========*/
        .breadcrumb-section {
            padding-top: 96px;
            padding-bottom: 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb-nav .separator {
            color: var(--border-dark);
        }

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

        /*========== CATEGORY HERO ==========*/
        .category-hero {
            padding: 40px 0 48px;
            background: var(--bg);
        }

        .category-hero .hero-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 48px 52px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }

        .category-hero .hero-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 70%, transparent 100%);
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(26, 60, 52, 0.06);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .category-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin: 0 0 16px;
        }

        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 0 24px;
        }

        .category-hero .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .category-hero .hero-actions .text-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-hero .hero-actions .text-link:hover {
            color: var(--accent-hover);
        }

        /*========== SUMMARY STRIP ==========*/
        .summary-strip {
            padding: 32px 0 0;
        }

        .summary-strip .strip-card {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 32px;
            align-items: center;
        }

        .summary-strip .strip-title {
            color: var(--dark-text);
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0;
        }

        .summary-strip .strip-title .highlight {
            color: var(--accent);
        }

        .summary-strip .strip-text {
            color: rgba(240, 238, 232, 0.82);
            font-size: 15px;
            line-height: 1.8;
            margin: 0;
        }

        /*========== DATA CARDS ==========*/
        .data-cards-section {
            padding: 48px 0 32px;
        }

        .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-hover);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0 0 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 32px;
            max-width: 680px;
        }

        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .data-card .card-value {
            font-size: 36px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .data-card .card-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .data-card .card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /*========== FULL TEXT SECTION ==========*/
        .full-text-section {
            padding: 48px 0 56px;
        }

        .full-text-section .text-panel {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow-sm);
        }

        .full-text-section .text-panel h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin: 0 0 24px;
        }

        .full-text-section .text-panel h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
        }

        .full-text-section .text-panel p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 16px;
        }

        /*========== LIST SECTION ==========*/
        .list-section {
            padding: 32px 0 56px;
        }

        .list-item-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .list-item-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .list-item-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }

        .list-item-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .list-item-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .list-item-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .list-item-card .card-img-wrap .img-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(26, 60, 52, 0.04) 0%, rgba(26, 60, 52, 0.4) 100%);
        }

        .list-item-card .card-body {
            padding: 24px 24px 28px;
        }

        .list-item-card .card-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .list-item-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .list-item-card .card-body .item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .list-item-card .card-body .item-meta .tag {
            background: rgba(26, 60, 52, 0.06);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 500;
        }

        /*========== COMPARISON STRIP ==========*/
        .comparison-strip {
            padding: 32px 0 56px;
        }

        .comparison-strip .comp-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
        }

        .comparison-strip .comp-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .comparison-strip .comp-col {
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .comparison-strip .comp-col.dark {
            background: var(--dark-bg);
            color: var(--dark-text);
        }

        .comparison-strip .comp-col.light {
            background: rgba(26, 60, 52, 0.04);
            color: var(--text-primary);
        }

        .comparison-strip .comp-col h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .comparison-strip .comp-col.dark h4 {
            color: var(--accent);
        }

        .comparison-strip .comp-col.light h4 {
            color: var(--primary);
        }

        .comparison-strip .comp-col ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .comparison-strip .comp-col ul li {
            padding: 8px 0;
            font-size: 15px;
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .comparison-strip .comp-col ul li i {
            margin-top: 4px;
            font-size: 14px;
        }

        .comparison-strip .comp-col.dark ul li {
            color: rgba(240, 238, 232, 0.85);
            border-bottom: 1px solid rgba(240, 238, 232, 0.12);
        }

        .comparison-strip .comp-col.light ul li {
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
        }

        .comparison-strip .comp-col ul li:last-child {
            border-bottom: none;
        }

        .comparison-strip .comp-col .comp-conclusion {
            font-size: 14px;
            font-weight: 600;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
        }

        .comparison-strip .comp-col.dark .comp-conclusion {
            background: rgba(200, 160, 92, 0.15);
            color: var(--accent);
        }

        .comparison-strip .comp-col.light .comp-conclusion {
            background: rgba(26, 60, 52, 0.08);
            color: var(--primary);
        }

        /*========== FAQ ==========*/
        .faq-section {
            padding: 32px 0 56px;
        }

        .faq-section .faq-panel {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 0;
            transition: all var(--transition);
        }

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            font-family: var(--font-cn);
            transition: color var(--transition);
            gap: 16px;
        }

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

        .faq-item .faq-icon {
            font-size: 20px;
            font-weight: 300;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            line-height: 1;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0;
        }

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

        .faq-item .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
            padding-left: 0;
        }

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

        .faq-item.open {
            border-left: 3px solid var(--accent);
            padding-left: 16px;
        }

        /*========== CTA ==========*/
        .cta-section {
            padding: 32px 0 64px;
        }

        .cta-section .cta-card {
            background: var(--dark-bg);
            border-radius: var(--radius-xl);
            padding: 48px 52px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }

        .cta-section .cta-title {
            color: var(--dark-text);
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 12px;
        }

        .cta-section .cta-title .highlight {
            color: var(--accent);
        }

        .cta-section .cta-desc {
            color: rgba(240, 238, 232, 0.75);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }

        .cta-section .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 28px;
        }

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

        .cta-section .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: rgba(240, 238, 232, 0.7);
            margin-bottom: 6px;
        }

        .cta-section .cta-form input {
            width: 100%;
            padding: 12px 16px;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-primary);
            background: #FFFFFF;
            outline: none;
            transition: box-shadow var(--transition);
        }

        .cta-section .cta-form input:focus {
            box-shadow: 0 0 0 2px var(--accent);
        }

        .cta-section .cta-form input::placeholder {
            color: var(--text-muted);
        }

        /*========== FOOTER ==========*/
        .site-footer {
            background: var(--dark-bg);
            color: var(--dark-text);
            padding: 56px 0 0;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
        }

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

        .site-footer .footer-brand .fb-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .site-footer .footer-brand .fb-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark-text);
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(240, 238, 232, 0.7);
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }

        .site-footer .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-text);
            margin: 0 0 16px;
        }

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

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul li a {
            color: rgba(240, 238, 232, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(240, 238, 232, 0.12);
            padding: 20px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .site-footer .footer-bottom .copyright {
            font-size: 13px;
            color: rgba(240, 238, 232, 0.6);
        }

        .site-footer .footer-bottom .beian-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(240, 238, 232, 0.6);
        }

        .site-footer .footer-bottom .beian-links a {
            color: rgba(240, 238, 232, 0.6);
            font-size: 13px;
        }

        .site-footer .footer-bottom .beian-links a:hover {
            color: var(--accent);
        }

        /*========== RESPONSIVE ==========*/
        @media (max-width: 1024px) {
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .category-hero .hero-card {
                padding: 36px 32px;
            }

            .category-hero h1 {
                font-size: 36px;
            }

            .full-text-section .text-panel {
                padding: 36px 32px;
            }

            .comparison-strip .comp-row {
                grid-template-columns: 1fr;
            }

            .cta-section .cta-card {
                grid-template-columns: 1fr;
                padding: 36px 32px;
            }

            .summary-strip .strip-card {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 28px 24px;
            }

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

        @media (max-width: 767px) {
            :root {
                --section-pad: 40px;
            }

            .breadcrumb-section {
                padding-top: 76px;
            }

            .category-hero {
                padding: 28px 0 32px;
            }

            .category-hero .hero-card {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }

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

            .category-hero .hero-desc {
                font-size: 15px;
            }

            .data-card-grid {
                grid-template-columns: 1fr;
            }

            .data-card {
                padding: 20px;
            }

            .data-card .card-value {
                font-size: 28px;
            }

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

            .full-text-section .text-panel {
                padding: 28px 20px;
            }

            .full-text-section .text-panel h2 {
                font-size: 22px;
            }

            .full-text-section .text-panel p {
                font-size: 15px;
            }

            .comparison-strip .comp-col {
                padding: 18px;
            }

            .faq-section .faq-panel {
                padding: 24px 20px;
            }

            .cta-section .cta-card {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }

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

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

            .site-footer {
                padding: 40px 0 0;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

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

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 24px;
            }

            .container-custom {
                padding: 0 16px;
            }

            .btn {
                padding: 10px 16px;
                font-size: 14px;
            }

            .category-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .category-hero .hero-actions .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #1A3C34;
  --primary-dark: #0F2A24;
  --primary-light: #2A5248;
  --accent: #C8A05C;
  --accent-hover: #B58E4A;
  --bg: #F8F6F2;
  --card-bg: #FFFFFF;
  --text-primary: #1F1F1F;
  --text-secondary: #5A5A5A;
  --text-muted: #8A8A8A;
  --border: #E5E0D8;
  --border-dark: #D5CFC4;
  --dark-text: #F0EEE8;
  --dark-bg: #142D26;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
  --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
  --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --section-pad: 72px;
  --section-pad-mobile: 40px;
  --max-width: 1200px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.75;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--accent-hover);
}
button {
  cursor: pointer;
  font-family: var(--font-cn);
}
input,
select,
textarea {
  font-family: var(--font-cn);
}
.container-custom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section-pad {
  padding: var(--section-pad) 0;
}
.bg-white {
  background: #FFFFFF;
}
.bg-light {
  background: #F4F0EA;
}
.bg-dark {
  background: var(--dark-bg);
  color: var(--dark-text);
}
h1, h2, h3, h4, h5, h6 {
  color: inherit;
  margin: 0 0 16px;
  line-height: 1.3;
  font-weight: 700;
}
p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  line-height: 1.85;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.7;
}
.section-head {
  margin-bottom: 36px;
}
.section-head.center {
  text-align: center;
}
.section-head.center .section-subtitle {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.accent {
  color: var(--accent);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--primary);
  transition: color var(--transition);
}
.text-link i {
  font-size: 13px;
  transition: transform var(--transition);
}
.text-link:hover {
  color: var(--accent-hover);
}
.text-link:hover i {
  transform: translateX(4px);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(26, 60, 52, 0.22);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(26, 60, 52, 0.3);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--border-dark);
}
.btn-outline:hover {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--accent);
  color: #1F1F1F;
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(200, 160, 92, 0.3);
}
.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #1F1F1F;
  box-shadow: 0 8px 20px rgba(200, 160, 92, 0.4);
  transform: translateY(-2px);
}
.btn-lg {
  padding: 15px 30px;
  font-size: 16px;
}
/* HEADER NAV */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  height: 72px;
  transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-nav);
  border-bottom-color: var(--border-dark);
}
.site-header .container-custom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--primary);
}
.site-logo .logo-icon {
  width: 42px;
  height: 42px;
  background: var(--primary);
  color: #FFFFFF;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.site-logo .logo-icon .accent-text {
  color: var(--accent);
}
.site-logo .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.site-logo .logo-text .dot {
  color: var(--accent);
}
.nav-links-wrapper {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 24px;
  list-style: none;
  padding: 0;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  width: 100%;
}
.nav-cta-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.desktop-cta {
  display: flex;
}
.mobile-cta {
  display: none;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  border-radius: 8px;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--bg);
}
.nav-panel {
  display: none;
}
.nav-overlay {
  display: none;
}
/* BREADCRUMB */
.breadcrumb-section {
  padding-top: 100px;
  padding-bottom: 0;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb-nav a {
  color: var(--text-secondary);
}
.breadcrumb-nav a:hover {
  color: var(--accent-hover);
}
.breadcrumb-nav .separator {
  color: var(--border-dark);
}
/* HERO */
.category-hero {
  padding-top: 28px;
  padding-bottom: 60px;
}
.hero-copy {
  padding-right: 24px;
}
.hero-tag {
  display: inline-block;
  background: rgba(200, 160, 92, 0.14);
  color: #9A7B3B;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
}
.hero-copy h1 {
  font-size: 46px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta i {
  color: var(--accent);
}
.hero-data-panel {
  background: var(--dark-bg);
  color: var(--dark-text);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.hero-data-panel::after {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(200, 160, 92, 0.12);
}
.hero-data-panel .panel-label {
  font-size: 13px;
  color: #B8B2A6;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-data-panel .main-time {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #FFFFFF;
  font-family: var(--font-num);
  margin-bottom: 10px;
}
.hero-data-panel .main-time small {
  font-size: 16px;
  font-weight: 500;
  color: #D8D2C6;
  letter-spacing: 0;
}
.hero-data-panel .panel-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #CBE1D8;
  margin-bottom: 28px;
}
.hero-data-panel .panel-status .dot {
  width: 8px;
  height: 8px;
  background: #5BBF9E;
  border-radius: 50%;
  display: inline-block;
}
.hero-data-mini-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-data-mini-list .mini-item {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: #D8D2C6;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 10px;
}
.hero-data-mini-list .mini-item span:last-child {
  color: #FFFFFF;
  font-weight: 600;
  font-family: var(--font-num);
}
/* METRICS */
.metrics-section {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow-lg);
}
.metric-card:hover::before {
  transform: scaleX(1);
}
.metric-number {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.7px;
  color: var(--primary);
  font-family: var(--font-num);
  margin-bottom: 8px;
}
.metric-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.metric-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}
/* CONTENT SPLIT */
.content-split .split-text h2 {
  font-size: 30px;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.content-split .split-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 18px;
}
.split-text .lead {
  font-size: 17px;
  color: var(--text-primary);
  font-weight: 500;
}
.data-card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.data-card {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 20px 22px;
  transition: all var(--transition);
}
.data-card:hover {
  background: #FFFFFF;
  border-left-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.data-card .dc-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.data-card .dc-content {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}
/* TIME TABLE */
.time-table-section {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.time-table-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.time-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}
.time-table th {
  background: var(--primary);
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  padding: 16px 20px;
  letter-spacing: 0.3px;
}
.time-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  color: var(--text-secondary);
  vertical-align: top;
}
.time-table tr:last-child td {
  border-bottom: none;
}
.time-table tr:hover td {
  background: #FDFBF7;
}
.time-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
.time-table .highlight {
  color: var(--primary);
  font-weight: 600;
}
.time-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 16px;
}
.time-img-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 24px;
  border: 1px solid var(--border);
}
.time-img-card img {
  object-fit: cover;
  width: 100%;
  height: auto;
}
/* RELATED ENTRIES */
.related-entry-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  height: 100%;
  transition: all var(--transition);
}
.related-entry-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}
.related-entry-card .entry-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(26, 60, 52, 0.06);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.related-entry-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.related-entry-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
/* LONG CONTENT */
.long-content {
  background: var(--bg);
}
.long-content .section-title {
  margin-bottom: 24px;
}
.long-content .long-text h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
}
.long-content .long-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 18px;
}
.long-content .long-text .quote-block {
  background: #FFFFFF;
  border-left: 4px solid var(--accent);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 500;
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}
/* FAQ */
.faq-section {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.accordion {
  margin: 0;
  list-style: none;
  padding: 0;
}
.accordion-item {
  border-bottom: 1px solid var(--border);
}
.accordion-item:first-child {
  border-top: 1px solid var(--border);
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 18px 8px;
  position: relative;
  cursor: pointer;
}
.accordion-title:hover {
  color: var(--primary);
}
.accordion-title::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--accent);
  transition: transform var(--transition);
  min-width: 22px;
  text-align: center;
}
.accordion-item.is-active .accordion-title::after {
  content: '−';
  transform: rotate(180deg);
}
.accordion-content {
  display: none;
  padding: 0 8px 18px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.accordion-item.is-active .accordion-content {
  display: block;
  animation: fadeSlide 0.28s ease;
}
.accordion-item.is-active {
  border-left: 3px solid var(--accent);
  background: #FDFBF7;
  padding-left: 5px;
}
@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
/* CTA */
.cta-section {
  background: var(--dark-bg);
  color: var(--dark-text);
}
.cta-section .cta-title {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  color: #FFFFFF;
}
.cta-section .cta-sub {
  font-size: 16px;
  color: #D8D2C6;
  line-height: 1.8;
  max-width: 480px;
}
.cta-form-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-primary);
  background: #FFFFFF;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(200, 160, 92, 0.25);
}
.form-input::placeholder {
  color: #B8B2A6;
}
.form-row {
  margin-bottom: 18px;
}
/* FOOTER */
.site-footer {
  background: #142D26;
  color: #D8D2C6;
  padding: 56px 0 24px;
  font-size: 15px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  color: #B8B2A6;
  font-size: 14px;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 280px;
}
.fb-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.fb-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary-light);
  color: #FFFFFF;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 17px;
}
.fb-logo .logo-text {
  font-size: 19px;
  font-weight: 700;
  color: #FFFFFF;
}
.footer-col h5 {
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: #B8B2A6;
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #9C958A;
}
.beian-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.beian-links a {
  color: #B8B2A6;
}
.beian-links a:hover {
  color: var(--accent);
}
.beian-links span {
  color: #9C958A;
}
/* RESPONSIVE */
@media (max-width: 1023px) {
  .nav-links-wrapper,
  .desktop-cta {
    display: none;
  }
  .mobile-cta {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-panel {
    display: block;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #FFFFFF;
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 998;
    padding: 20px 24px 32px;
    overflow-y: auto;
  }
  .nav-panel.nav-open {
    transform: translateX(0);
  }
  .nav-overlay {
    display: block;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.38);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    z-index: 997;
  }
  .nav-overlay.visible {
    opacity: 1;
    pointer-events: auto;
  }
  .nav-panel .nav-links-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin: 0 0 24px;
  }
  .nav-panel .nav-link {
    font-size: 17px;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .nav-panel .nav-link::after {
    display: none;
  }
  .mobile-cta {
    flex-direction: column;
    gap: 12px;
  }
  .mobile-cta .btn {
    width: 100%;
  }
  .site-header {
    height: 60px;
  }
  .breadcrumb-section {
    padding-top: 84px;
  }
  .section-pad {
    padding: var(--section-pad-mobile) 0;
  }
  .hero-copy {
    padding-right: 0;
    margin-bottom: 24px;
  }
  .hero-copy h1 {
    font-size: 36px;
  }
  .hero-data-panel {
    margin-top: 10px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}
@media (max-width: 767px) {
  .container-custom {
    padding: 0 18px;
  }
  .hero-copy h1 {
    font-size: 32px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions {
    gap: 12px;
  }
  .btn {
    padding: 11px 18px;
    font-size: 14px;
  }
  .btn-lg {
    padding: 13px 22px;
    font-size: 15px;
  }
  .section-title {
    font-size: 25px;
  }
  .metric-card {
    padding: 20px;
  }
  .metric-number {
    font-size: 30px;
  }
  .content-split .split-text h2 {
    font-size: 25px;
  }
  .time-table th,
  .time-table td {
    padding: 12px 14px;
    font-size: 13px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}
@media (max-width: 520px) {
  .hero-copy h1 {
    font-size: 28px;
  }
  .section-title {
    font-size: 22px;
  }
  .long-content .long-text h3 {
    font-size: 18px;
  }
}

/* roulang page: category4 */
:root {
            --primary: #1A3C34;
            --primary-dark: #0F2A24;
            --primary-light: #2A5248;
            --accent: #C8A05C;
            --accent-hover: #B58E4A;
            --bg: #F8F6F2;
            --card-bg: #FFFFFF;
            --text-primary: #1F1F1F;
            --text-secondary: #5A5A5A;
            --text-muted: #8A8A8A;
            --border: #E5E0D8;
            --border-dark: #D5CFC4;
            --dark-text: #F0EEE8;
            --dark-bg: #142D26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --section-pad: 64px;
            --section-pad-mobile: 36px;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }

        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }

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

        /* ========== HEADER NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            height: 72px;
            transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--border-dark);
        }

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

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

        .site-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .site-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

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

        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 24px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }

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

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

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

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

        .nav-cta-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 60, 52, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 60, 52, 0.35);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(26, 60, 52, 0.2);
        }

        .btn-accent {
            background: var(--accent);
            color: #1F1F1F;
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(200, 160, 92, 0.35);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1F1F1F;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(200, 160, 92, 0.45);
        }

        .btn-sm {
            padding: 9px 16px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 30px;
            font-size: 16px;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            transition: all var(--transition);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            padding-top: 104px;
            padding-bottom: 12px;
            background: var(--bg);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb-nav .separator {
            color: var(--border-dark);
            font-size: 12px;
        }

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

        /* ========== CATEGORY HERO ========== */
        .cat-hero {
            padding: 36px 0 48px;
            background: var(--bg);
        }

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

        .cat-hero-text h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cat-hero-text h1 .accent-underline {
            color: var(--primary);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 2px;
        }

        .cat-hero-text .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 24px;
        }

        .cat-hero-text .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .cat-hero-text .hero-tags .tag {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .cat-hero-text .hero-tags .tag.tag-accent {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .cat-hero-image {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .cat-hero-image .hero-img-wrap {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }

        .cat-hero-image .hero-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .cat-hero-image .floating-badge {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-md);
        }

        /* ========== SUMMARY SECTION ========== */
        .summary-section {
            padding: 36px 0 28px;
            background: var(--bg);
        }

        .summary-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 32px 36px;
            box-shadow: var(--shadow-sm);
        }

        .summary-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .summary-card p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ========== PARAM LIST SECTION ========== */
        .param-list-section {
            padding: 28px 0 48px;
            background: var(--bg);
        }

        .param-list-section .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .param-list-section .section-heading h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .param-list-section .section-heading .heading-note {
            font-size: 15px;
            color: var(--text-muted);
        }

        .param-list-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .param-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .param-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .param-item .param-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

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

        .param-item p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .param-item .param-meta {
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== DEEP CONTENT SECTION ========== */
        .deep-content-section {
            padding: 48px 0 64px;
            background: #FFFFFF;
        }

        .deep-content-section .container-custom {
            max-width: 860px;
        }

        .deep-content-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .deep-content-section h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 28px;
            margin-bottom: 10px;
        }

        .deep-content-section p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }

        .deep-content-section .inline-highlight {
            background: #FFF8E8;
            border-left: 3px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--text-secondary);
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-section {
            padding: 48px 0 64px;
            background: var(--bg);
        }

        .comparison-table-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .param-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--card-bg);
            box-shadow: var(--shadow-sm);
        }

        .param-table-wrap table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 640px;
        }

        .param-table-wrap thead th {
            background: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 14px;
            padding: 14px 18px;
            text-align: left;
            border-bottom: 2px solid var(--primary-dark);
        }

        .param-table-wrap tbody td {
            padding: 13px 18px;
            border-bottom: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 14px;
        }

        .param-table-wrap tbody tr:nth-child(even) {
            background: #FBFAF8;
        }

        .param-table-wrap tbody tr:hover {
            background: #F5F3EE;
            transition: background 0.2s ease;
        }

        .param-table-wrap tbody tr:last-child td {
            border-bottom: none;
        }

        .param-table-wrap .param-name {
            font-weight: 600;
            color: var(--text-primary);
        }

        .param-table-wrap .badge-cell {
            display: inline-block;
            background: #F0EDE6;
            border-radius: 20px;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 56px 0;
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -20%;
            width: 70%;
            height: 220%;
            background: radial-gradient(ellipse, rgba(200, 160, 92, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .container-custom {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--dark-text);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .cta-section .cta-sub {
            font-size: 16px;
            color: #C8C4BA;
            max-width: 380px;
        }

        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-section .btn-accent {
            font-size: 16px;
            padding: 15px 28px;
        }

        .cta-section .btn-outline-light {
            background: transparent;
            color: var(--dark-text);
            border: 2px solid #4A5A52;
            font-size: 16px;
            padding: 15px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
        }

        .cta-section .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--dark-bg);
            color: var(--dark-text);
            padding: 48px 0 24px;
            border-top: 1px solid #2A3A34;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 32px;
            border-bottom: 1px solid #2A3A34;
        }

        .footer-brand .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .fb-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        .footer-brand .fb-logo .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
        }

        .footer-brand p {
            font-size: 14px;
            color: #A8A49A;
            line-height: 1.7;
            max-width: 240px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: #A8A49A;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: #8A8A8A;
        }

        .footer-bottom .copyright {
            color: #A8A49A;
        }

        .beian-links {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .beian-links a {
            color: #A8A49A;
            font-size: 13px;
            transition: color var(--transition);
        }

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

        .beian-links span {
            color: #8A8A8A;
            font-size: 13px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-links-wrapper {
                gap: 18px;
                margin: 0 16px;
            }

            .nav-link {
                font-size: 14px;
            }

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

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

            .cta-section .container-custom {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-grid {
                grid-template-columns: 1.2fr 1fr 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }

            .site-header {
                height: 60px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-links-wrapper {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                gap: 0;
                margin: 0;
                padding: 12px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                display: none;
                z-index: 999;
            }

            .nav-links-wrapper.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 0;
                width: 100%;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }

            .nav-link:last-child {
                border-bottom: none;
            }

            .nav-cta-wrapper {
                display: none;
            }

            .cat-hero .container-custom {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

            .summary-card {
                padding: 22px 24px;
            }

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

            .param-list-section .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .deep-content-section {
                padding: 36px 0 44px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }

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

            .site-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }

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

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

            .cat-hero-text .hero-subtitle {
                font-size: 15px;
            }

            .summary-section,
            .param-list-section {
                padding: 20px 0 28px;
            }

            .param-item {
                padding: 18px 20px;
            }

            .comparison-table-section {
                padding: 28px 0 40px;
            }

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

            .btn {
                padding: 11px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1A3C34;
            --primary-dark: #0F2A24;
            --primary-light: #2A5248;
            --accent: #C8A05C;
            --accent-hover: #B58E4A;
            --bg: #F8F6F2;
            --card-bg: #FFFFFF;
            --text-primary: #1F1F1F;
            --text-secondary: #5A5A5A;
            --text-muted: #8A8A8A;
            --border: #E5E0D8;
            --border-dark: #D5CFC4;
            --dark-text: #F0EEE8;
            --dark-bg: #142D26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 28px rgba(0,0,0,0.08);
            --shadow-nav: 0 4px 18px rgba(26,60,52,0.1);
            --font-cn: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-num: 'SF Pro Display','Inter',system-ui,sans-serif;
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input, select, textarea {
            font-family: var(--font-cn);
        }
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            height: 72px;
            transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--border-dark);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon .accent-text {
            color: var(--accent);
        }
        .site-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .site-logo .logo-text .dot {
            color: var(--accent);
        }
        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 24px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-cta-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26,60,52,0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26,60,52,0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: #F0EDE7;
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1F1F1F;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(200,160,92,0.25);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1F1F1F;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200,160,92,0.35);
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding-top: 100px;
            padding-bottom: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent-hover);
        }
        .breadcrumb .separator {
            color: var(--border-dark);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* Hero */
        .hero-section {
            padding: 40px 0 64px;
            background: var(--bg);
        }
        .hero-grid {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1 1 50%;
            min-width: 300px;
        }
        .hero-text h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            margin: 0 0 16px;
            letter-spacing: -0.5px;
        }
        .hero-text .subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.6;
            max-width: 500px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-visual {
            flex: 1 1 45%;
            min-width: 280px;
            position: relative;
        }
        .hero-visual .data-panel {
            background: var(--dark-bg);
            border-radius: var(--radius-xl);
            padding: 24px;
            color: var(--dark-text);
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .hero-visual .data-panel::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(200,160,92,0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-visual .data-panel img {
            border-radius: var(--radius-md);
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.3);
            position: relative;
            z-index: 1;
        }
        .hero-visual .data-stats {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .hero-visual .stat-item {
            flex: 1;
            min-width: 80px;
        }
        .hero-visual .stat-number {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-visual .stat-label {
            font-size: 13px;
            color: #C5C0B8;
        }
        /* Data comparison strip */
        .data-comparison-section {
            padding: var(--section-pad) 0;
            background: #FFFDF9;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 32px;
        }
        .comparison-strip-grid {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 12px;
        }
        .comparison-card {
            flex: 0 0 280px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .comparison-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
        }
        .comparison-card .card-period {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-hover);
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .comparison-card .top-frequency {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .comparison-card .freq-number {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            background: #F0EDE7;
            padding: 4px 10px;
            border-radius: 6px;
        }
        .comparison-card .stat-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* Content columns */
        .content-columns-section {
            padding: var(--section-pad) 0;
        }
        .columns-layout {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .left-content {
            flex: 1 1 60%;
            min-width: 300px;
        }
        .left-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .left-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .right-data-card {
            flex: 1 1 35%;
            min-width: 260px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
        }
        .right-data-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 10px;
            display: inline-block;
        }
        .data-metric {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .data-metric:last-child {
            border-bottom: none;
        }
        .data-metric .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .data-metric .metric-value {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }
        /* Deep content */
        .deep-content-section {
            padding: var(--section-pad) 0;
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .deep-content-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .deep-content-section p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .deep-content-section .highlight-box {
            background: #F6F3ED;
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            font-size: 15px;
            color: var(--text-primary);
        }
        /* Related list */
        .related-list-section {
            padding: var(--section-pad) 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .related-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .related-item:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
            box-shadow: var(--shadow-lg);
        }
        .related-item .item-icon {
            width: 48px;
            height: 48px;
            background: #F0EDE7;
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .related-item h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* Knowledge tip */
        .knowledge-tip-section {
            padding: var(--section-pad) 0;
            background: #FFFDF9;
            border-top: 1px solid var(--border);
        }
        .knowledge-tip-grid {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .knowledge-card {
            flex: 1 1 220px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .knowledge-card:hover {
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .knowledge-card .tip-value {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .knowledge-card .tip-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        /* FAQ */
        .faq-section {
            padding: var(--section-pad) 0;
            background: #FFFFFF;
            border-top: 1px solid var(--border);
        }
        .custom-accordion .accordion-item {
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .custom-accordion .accordion-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 8px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            list-style: none;
            transition: color var(--transition);
        }
        .custom-accordion .accordion-question:hover {
            color: var(--primary-dark);
        }
        .custom-accordion .accordion-question .icon {
            font-size: 20px;
            transition: transform var(--transition);
            color: var(--accent);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .custom-accordion .accordion-item.active .accordion-question .icon {
            transform: rotate(45deg);
        }
        .custom-accordion .accordion-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 8px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            border-left: 3px solid transparent;
        }
        .custom-accordion .accordion-item.active .accordion-answer {
            max-height: 500px;
            padding: 16px 8px 16px 24px;
            border-left-color: var(--accent);
            background: #FAF9F7;
        }
        /* CTA */
        .cta-section {
            padding: var(--section-pad) 0;
            background: var(--dark-bg);
            color: var(--dark-text);
        }
        .cta-grid {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .cta-left {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .cta-left h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 16px;
            color: #C5C0B8;
            max-width: 400px;
        }
        .cta-right {
            flex: 1 1 45%;
            min-width: 280px;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(4px);
        }
        .cta-form .form-group {
            margin-bottom: 16px;
        }
        .cta-form label {
            font-size: 13px;
            font-weight: 500;
            color: #D5CFC4;
            display: block;
            margin-bottom: 6px;
        }
        .cta-form input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid transparent;
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition);
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--accent);
        }
        .cta-form .btn-accent {
            width: 100%;
            margin-top: 8px;
        }
        /* Footer */
        .site-footer {
            background: #142D26;
            color: #D5CFC4;
            padding: 64px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .fb-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: #1F1F1F;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }
        .footer-brand .fb-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.6;
            color: #A9A59E;
            max-width: 260px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #A9A59E;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: #8A857E;
        }
        .footer-bottom .beian-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-bottom .beian-links a,
        .footer-bottom .beian-links span {
            color: #8A857E;
        }
        .footer-bottom .beian-links a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid, .columns-layout, .cta-grid {
                gap: 32px;
            }
            .hero-text h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 56px;
            }
            .site-header {
                height: 60px;
            }
            .nav-links-wrapper {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 20px 24px;
                box-shadow: var(--shadow-nav);
                gap: 16px;
                border-bottom: 1px solid var(--border);
            }
            .nav-links-wrapper.mobile-open {
                display: flex;
            }
            .nav-cta-wrapper {
                gap: 8px;
            }
            .btn {
                padding: 10px 16px;
                font-size: 14px;
            }
            .site-logo .logo-text {
                font-size: 18px;
            }
            .hero-grid, .columns-layout, .cta-grid {
                flex-direction: column;
            }
            .hero-text h1 {
                font-size: 32px;
            }
            .hero-visual .data-panel {
                min-height: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .comparison-strip-grid {
                gap: 16px;
            }
            .comparison-card {
                flex: 0 0 240px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --section-pad: 40px;
            }
            .container-custom {
                padding: 0 16px;
            }
            .hero-text h1 {
                font-size: 28px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 24px;
            }
            .right-data-card,
            .cta-right {
                padding: 20px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1A3C34;
            --primary-dark: #0F2A24;
            --primary-light: #2A5248;
            --accent: #C8A05C;
            --accent-hover: #B58E4A;
            --bg: #F8F6F2;
            --card-bg: #FFFFFF;
            --text-primary: #1F1F1F;
            --text-secondary: #5A5A5A;
            --text-muted: #8A8A8A;
            --border: #E5E0D8;
            --border-dark: #D5CFC4;
            --dark-text: #F0EEE8;
            --dark-bg: #142D26;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --section-pad: 72px;
            --section-pad-mobile: 40px;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }

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

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            height: 72px;
            transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--border-dark);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .site-logo .logo-icon .accent-text {
            color: var(--accent);
        }
        .site-logo .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .site-logo .logo-text .dot {
            color: var(--accent);
        }
        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: 24px;
            margin: 0 20px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-cta-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 60, 52, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 60, 52, 0.32);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(26, 60, 52, 0.06);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1A1A1A;
            border-color: var(--accent);
            font-weight: 700;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #1A1A1A;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 160, 92, 0.35);
        }
        .btn-small {
            padding: 9px 16px;
            font-size: 13px;
        }
        .btn-text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            padding: 0;
            background: none;
            border: none;
        }
        .btn-text-link i {
            transition: transform var(--transition);
            font-size: 12px;
        }
        .btn-text-link:hover {
            color: var(--accent-hover);
        }
        .btn-text-link:hover i {
            transform: translateX(4px);
        }

        /* Mobile nav */
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(26, 60, 52, 0.06);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding-top: 100px;
            padding-bottom: 16px;
            background: var(--bg);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-hover);
        }
        .breadcrumb-nav .sep {
            color: var(--border-dark);
            font-size: 12px;
        }
        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Page Hero */
        .page-hero {
            padding: 28px 0 48px;
            background: var(--bg);
        }
        .page-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .page-hero-content h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin: 0 0 16px;
            letter-spacing: -0.3px;
        }
        .page-hero-content .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 24px;
            max-width: 520px;
        }
        .hero-action-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .page-hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .page-hero-visual img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            max-height: 360px;
            object-fit: cover;
            width: 100%;
        }

        /* Section common */
        .section {
            padding: var(--section-pad) 0;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin: 0 0 12px;
            letter-spacing: -0.2px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0 0 36px;
            line-height: 1.7;
            max-width: 600px;
        }

        /* Dual column with left text + right data cards */
        .dual-column-section {
            padding: var(--section-pad) 0;
            background: #FFFFFF;
        }
        .dual-column-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: start;
        }
        .left-rich-text {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .left-rich-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 20px;
            line-height: 1.3;
        }
        .left-rich-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
        }
        .left-rich-text p {
            margin-bottom: 20px;
        }
        .left-rich-text .highlight-box {
            background: #F5F2EB;
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
        }
        .right-data-cards {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: 100px;
        }
        .data-card-sm {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
        }
        .data-card-sm:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .data-card-sm .dc-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .data-card-sm .dc-value {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .data-card-sm .dc-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .data-card-sm .dc-trend {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-top: 10px;
        }
        .dc-trend.up {
            background: rgba(26, 60, 52, 0.08);
            color: var(--primary);
        }
        .dc-trend.down {
            background: rgba(200, 100, 80, 0.08);
            color: #C06450;
        }
        .dc-trend i {
            font-size: 11px;
        }

        /* Stat strip */
        .stat-strip-section {
            padding: 48px 0;
            background: var(--dark-bg);
        }
        .stat-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-strip-item {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .stat-strip-item .ss-value {
            font-family: var(--font-num);
            font-size: 38px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-strip-item .ss-label {
            font-size: 14px;
            color: var(--dark-text);
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        /* Analysis dimension cards */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 36px;
        }
        .dimension-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition);
        }
        .dimension-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .dimension-card .dc-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .dimension-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 10px;
        }
        .dimension-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Deep text section */
        .deep-text-section {
            padding: var(--section-pad) 0;
            background: var(--bg);
        }
        .deep-text-section .inner-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .deep-text-section .inner-wrap h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 20px;
            line-height: 1.3;
        }
        .deep-text-section .inner-wrap p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
            margin-bottom: 20px;
        }
        .deep-text-section .inner-wrap .data-inline-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            margin: 24px 0;
        }
        .deep-text-section .inner-wrap .data-inline-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 12px;
        }
        .deep-text-section .inner-wrap .data-inline-card p {
            font-size: 14px;
            margin-bottom: 10px;
            color: var(--text-secondary);
        }

        /* Related items list */
        .related-list-section {
            padding: var(--section-pad) 0;
            background: #FFFFFF;
        }
        .related-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 36px;
        }
        .related-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .related-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .related-item .ri-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .related-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
        }
        .related-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            padding: var(--section-pad) 0;
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 4px 0;
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 12px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-cn);
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question .faq-icon {
            font-size: 16px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
            padding: 0 12px;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 12px 20px;
            border-left: 3px solid var(--accent);
            margin-left: 12px;
            background: rgba(200, 160, 92, 0.04);
        }

        /* CTA section */
        .cta-section {
            padding: var(--section-pad) 0;
            background: var(--primary);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cta-left h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            line-height: 1.7;
            max-width: 420px;
        }
        .cta-form-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }
        .cta-form-card .form-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
            display: block;
        }
        .cta-form-card .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-primary);
            background: #FDFCFA;
            transition: border-color var(--transition), box-shadow var(--transition);
            margin-bottom: 16px;
            outline: none;
        }
        .cta-form-card .form-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(200, 160, 92, 0.2);
        }
        .cta-form-card .form-input::placeholder {
            color: var(--text-muted);
        }
        .cta-form-card .btn-submit {
            width: 100%;
            padding: 14px;
            background: var(--accent);
            color: #1A1A1A;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .cta-form-card .btn-submit:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 160, 92, 0.35);
        }

        /* Footer */
        .site-footer {
            background: #1A2824;
            color: rgba(240, 238, 232, 0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .fb-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .fb-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-light);
            color: #FFFFFF;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .footer-brand .fb-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(240, 238, 232, 0.6);
            max-width: 280px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(240, 238, 232, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(240, 238, 232, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copyright {
            font-size: 13px;
            color: rgba(240, 238, 232, 0.55);
        }
        .footer-bottom .beian-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(240, 238, 232, 0.55);
        }
        .footer-bottom .beian-links a {
            color: rgba(240, 238, 232, 0.55);
        }
        .footer-bottom .beian-links a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero-content h1 {
                font-size: 34px;
            }
            .dual-column-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .right-data-cards {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-strip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-pad: 40px;
            }
            .site-header {
                height: 60px;
            }
            .site-logo .logo-text {
                font-size: 17px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links-wrapper {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-nav);
                margin: 0;
                z-index: 999;
            }
            .nav-links-wrapper.mobile-open {
                display: flex;
            }
            .nav-links-wrapper .nav-link {
                padding: 14px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }
            .nav-links-wrapper .nav-link:last-child {
                border-bottom: none;
            }
            .nav-cta-wrapper .btn {
                padding: 10px 14px;
                font-size: 13px;
            }
            .breadcrumb-bar {
                padding-top: 76px;
            }
            .page-hero {
                padding: 20px 0 36px;
            }
            .page-hero-content h1 {
                font-size: 28px;
            }
            .page-hero-content .hero-desc {
                font-size: 15px;
            }
            .section-title {
                font-size: 24px;
            }
            .right-data-cards {
                grid-template-columns: 1fr;
            }
            .stat-strip-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .dimension-grid {
                grid-template-columns: 1fr;
            }
            .related-list-grid {
                grid-template-columns: 1fr;
            }
            .dual-column-grid {
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }
            .page-hero-content h1 {
                font-size: 24px;
            }
            .hero-action-group {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .cta-form-card {
                padding: 20px;
            }
            .nav-cta-wrapper .btn-outline {
                display: none;
            }
            .nav-cta-wrapper .btn-primary {
                padding: 8px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category6 */
:root {
  --primary: #1A3C34;
  --primary-dark: #0F2A24;
  --primary-light: #2A5248;
  --accent: #C8A05C;
  --accent-hover: #B58E4A;
  --bg: #F8F6F2;
  --card-bg: #FFFFFF;
  --text-primary: #1F1F1F;
  --text-secondary: #5A5A5A;
  --text-muted: #8A8A8A;
  --border: #E5E0D8;
  --border-dark: #D5CFC4;
  --dark-text: #F0EEE8;
  --dark-bg: #142D26;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
  --shadow-nav: 0 4px 18px rgba(26, 60, 52, 0.1);
  --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-num: 'SF Pro Display', 'Inter', system-ui, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --section-pad: 72px;
  --section-pad-mobile: 40px;
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.75;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  box-sizing: border-box;
}

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

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

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

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

button {
  cursor: pointer;
  font-family: var(--font-cn);
}

input, select, textarea {
  font-family: var(--font-cn);
}

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

/* ========== HEADER NAV ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  height: 72px;
  transition: box-shadow var(--transition), height var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-nav);
  border-bottom-color: var(--border-dark);
}

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

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

.site-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #FFFFFF;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.site-logo .logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.nav-links-wrapper {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 24px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

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

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

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

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

.nav-cta-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(26, 60, 52, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(26, 60, 52, 0.32);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(26, 60, 52, 0.2);
}

.btn-accent {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(200, 160, 92, 0.3);
}

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(200, 160, 92, 0.4);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 14px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  padding: 8px;
  cursor: pointer;
}

/* ========== BREADCRUMB ========== */
.breadcrumb-section {
  padding-top: 96px;
  padding-bottom: 12px;
  background: var(--bg);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

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

.breadcrumb-nav .sep {
  color: var(--border-dark);
}

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

/* ========== HERO ========== */
.hero-section {
  padding: 48px 0 48px;
  background: var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-content .hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .text-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.hero-actions .text-link:hover {
  color: var(--accent-hover);
  gap: 10px;
}

.hero-visual {
  position: relative;
}

.hero-panel {
  background: var(--dark-bg);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  box-shadow: var(--shadow-lg);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-panel .panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.hero-panel .panel-header span {
  color: var(--dark-text);
  font-size: 13px;
  font-weight: 500;
  opacity: 0.8;
}

.hero-panel .panel-header .badge {
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

.hero-panel .number-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.hero-panel .number-ball {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-text);
  font-family: var(--font-num);
  transition: all var(--transition);
}

.hero-panel .number-ball.highlight {
  background: var(--accent);
  color: var(--primary-dark);
}

.hero-panel .panel-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 12px;
}

.hero-panel .panel-footer strong {
  color: var(--accent);
  font-size: 16px;
}

/* ========== SUMMARY SECTION ========== */
.summary-section {
  padding: 48px 0 28px;
  background: var(--bg);
}

.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  box-shadow: var(--shadow-sm);
}

.summary-card h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.35;
}

.summary-card p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.summary-card p:last-child {
  margin-bottom: 0;
}

/* ========== COMPARISON STRIP ========== */
.comparison-strip {
  padding: 28px 0 48px;
  background: var(--bg);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.comparison-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  text-align: center;
  transition: all var(--transition);
}

.comparison-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.comparison-item .ci-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(26, 60, 52, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--primary);
  font-size: 18px;
}

.comparison-item .ci-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.comparison-item .ci-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-num);
}

.comparison-item .ci-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ========== TOOLS LIST SECTION ========== */
.tools-list-section {
  padding: 48px 0 56px;
  background: #F1EEE8;
}

.tools-list-section .section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.tools-list-section .section-heading h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin: 0;
}

.tools-list-section .section-heading .hint {
  font-size: 14px;
  color: var(--text-muted);
}

.tools-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.tool-list-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all var(--transition);
}

.tool-list-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.tool-list-item .tool-index {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.tool-list-item .tool-info {
  flex: 1;
}

.tool-list-item .tool-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px;
  line-height: 1.4;
}

.tool-list-item .tool-info p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

.tool-list-item .tool-action {
  flex-shrink: 0;
}

.tool-list-item .tool-action a {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-hover);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
}

.tool-list-item .tool-action a:hover {
  color: var(--primary);
  gap: 8px;
}

/* ========== LONG CONTENT SECTION ========== */
.long-content-section {
  padding: 56px 0;
  background: var(--bg);
}

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

.long-content-wrap h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1.35;
}

.long-content-wrap h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin: 24px 0 12px;
  line-height: 1.4;
}

.long-content-wrap p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
}

.long-content-wrap .content-highlight {
  background: rgba(200, 160, 92, 0.08);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.8;
}

/* ========== RELATED ENTRIES ========== */
.related-section {
  padding: 48px 0 56px;
  background: #F1EEE8;
}

.related-section h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  text-align: center;
}

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

.related-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.related-card .rc-image {
  height: 160px;
  overflow: hidden;
  position: relative;
}

.related-card .rc-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

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

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

.related-card .rc-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.45;
}

.related-card .rc-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 12px;
}

.related-card .rc-body a {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-hover);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
}

.related-card .rc-body a:hover {
  color: var(--primary);
  gap: 8px;
}

/* ========== CTA SECTION ========== */
.cta-section {
  padding: 56px 0;
  background: var(--dark-bg);
}

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

.cta-left h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 12px;
  line-height: 1.35;
}

.cta-left p {
  font-size: 15px;
  color: rgba(240, 238, 232, 0.7);
  line-height: 1.7;
  max-width: 400px;
  margin: 0;
}

.cta-form-wrapper {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.cta-form-wrapper form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cta-form-wrapper label {
  font-size: 13px;
  color: var(--dark-text);
  font-weight: 500;
  display: block;
  margin-bottom: 4px;
}

.cta-form-wrapper input,
.cta-form-wrapper select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.95);
  font-size: 14px;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.cta-form-wrapper input:focus,
.cta-form-wrapper select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(200, 160, 92, 0.35);
}

.cta-form-wrapper .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.cta-form-wrapper .btn-submit {
  background: var(--accent);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: all var(--transition);
  width: 100%;
}

.cta-form-wrapper .btn-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(200, 160, 92, 0.35);
}

/* ========== FOOTER ========== */
.site-footer {
  background: #101E1A;
  color: rgba(240, 238, 232, 0.75);
  padding: 48px 0 24px;
}

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

.footer-brand .fb-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand .fb-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #FFFFFF;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.footer-brand .fb-logo .logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-text);
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(240, 238, 232, 0.55);
  margin: 0;
  max-width: 280px;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark-text);
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

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

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

.footer-col ul li a {
  font-size: 13px;
  color: rgba(240, 238, 232, 0.55);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
}

.footer-bottom .copyright {
  color: rgba(240, 238, 232, 0.5);
}

.footer-bottom .beian-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-bottom .beian-links a,
.footer-bottom .beian-links span {
  color: rgba(240, 238, 232, 0.45);
  font-size: 12px;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 1023px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-content h1 {
    font-size: 36px;
  }
  .comparison-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 767px) {
  .site-header {
    height: 60px;
  }
  .site-header .container-custom {
    padding: 0 16px;
  }
  .site-logo .logo-text {
    font-size: 17px;
  }
  .nav-links-wrapper {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    gap: 0;
    padding: 16px 24px;
    box-shadow: var(--shadow-nav);
    border-bottom: 1px solid var(--border);
    z-index: 999;
  }
  .nav-links-wrapper.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    width: 100%;
  }
  .nav-link:last-child {
    border-bottom: none;
  }
  .nav-cta-wrapper {
    display: none;
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.08);
    z-index: 999;
  }
  .nav-cta-wrapper.open {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-content .hero-subtitle {
    font-size: 15px;
  }
  .hero-panel {
    min-height: 260px;
    padding: 20px 16px;
  }
  .hero-panel .number-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 6px;
  }
  .hero-panel .number-ball {
    font-size: 14px;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .summary-card {
    padding: 20px 18px;
  }
  .tool-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
  }
  .cta-form-wrapper .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  :root {
    --section-pad: 40px;
  }
}