/* roulang page: index */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }

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

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }

        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }

        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
        }

        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
        }

        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }

        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
        }

        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.5rem;
        }

        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
        }

        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left: 4px solid var(--accent);
        }

        section {
            margin-bottom: var(--section-gap);
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--charcoal);
        }

        h2 {
            font-size: 1.875rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--charcoal);
        }

        h3 {
            font-size: 1.375rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }

        h4 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }

        .text-secondary-custom {
            color: var(--mid-gray);
        }

        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            text-decoration: none;
        }
        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(230, 98, 44, 0.35);
            text-decoration: none;
        }

        .btn-secondary-custom {
            background: transparent;
            color: var(--primary-mid);
            border: 1px solid var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
            text-decoration: none;
        }
        .btn-secondary-custom:hover,
        .btn-secondary-custom:focus {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }

        .btn-ghost-custom {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), border var(--transition-base);
            text-decoration: none;
        }
        .btn-ghost-custom:hover,
        .btn-ghost-custom:focus {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            text-decoration: none;
        }

        .text-link-custom {
            color: var(--primary-mid);
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .text-link-custom:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .text-link-accent {
            color: var(--accent-dark);
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .text-link-accent:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .badge-custom {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }

        .badge-data {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: var(--radius-badge);
        }

        .badge-amber {
            display: inline-block;
            background: rgba(201, 155, 63, 0.15);
            color: var(--amber-gold);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: var(--radius-badge);
        }

        .hero-section {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 56px 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-brand-row {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        .hero-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.125rem;
            color: #fff;
            margin-right: 14px;
            flex-shrink: 0;
        }
        .hero-brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
        }
        .hero-brand-sub {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
        }
        .hero-section h1 {
            color: #fff;
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero-section .hero-sub {
            font-size: 1.0625rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 28px;
            max-width: 560px;
        }
        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            position: relative;
            z-index: 2;
        }
        .hero-metric-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 10px;
            padding: 20px 18px;
            text-align: center;
            transition: background var(--transition-base), border var(--transition-base);
        }
        .hero-metric-card:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .hero-metric-value {
            font-family: var(--font-num);
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--amber-gold);
            line-height: 1.1;
            letter-spacing: -1px;
        }
        .hero-metric-unit {
            font-family: var(--font-num);
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-left: 4px;
        }
        .hero-metric-label {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
        }
        .hero-metric-delta {
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 6px;
            display: inline-block;
        }
        .delta-up {
            color: #6fc99a;
        }
        .delta-down {
            color: var(--accent);
        }
        .hero-trust-bar {
            position: relative;
            z-index: 2;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            flex-wrap: wrap;
            gap: 8px 18px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .hero-trust-bar span::after {
            content: '·';
            margin-left: 18px;
            color: rgba(255, 255, 255, 0.35);
        }
        .hero-trust-bar span:last-child::after {
            content: '';
            margin-left: 0;
        }

        .card-custom {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }
        .card-custom:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .service-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .service-card-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            background: #E8ECEA;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border-radius: 8px 8px 0 0;
        }
        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 350ms ease;
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.04);
        }
        .service-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .service-card-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        .service-card-desc {
            font-size: 0.875rem;
            color: var(--mid-gray);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }

        .compare-section {
            background: #EDF0ED;
            border-radius: var(--radius-card);
            padding: 48px;
        }
        .compare-divider {
            width: 1px;
            background: var(--light-gray);
            margin: 0 24px;
        }
        .compare-bar-item {
            margin-bottom: 16px;
        }
        .compare-bar-item:last-child {
            margin-bottom: 0;
        }
        .compare-bar-label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--charcoal);
            margin-bottom: 6px;
            display: flex;
            justify-content: space-between;
        }
        .compare-bar-track {
            height: 12px;
            background: #fff;
            border-radius: 6px;
            overflow: hidden;
        }
        .compare-bar-fill-primary {
            height: 100%;
            background: var(--amber-gold);
            border-radius: 6px;
            transition: width 400ms ease;
        }
        .compare-bar-fill-accent {
            height: 100%;
            background: var(--accent);
            border-radius: 6px;
            transition: width 400ms ease;
        }
        .compare-bar-fill-moss {
            height: 100%;
            background: var(--moss-green);
            border-radius: 6px;
            transition: width 400ms ease;
        }
        .result-item {
            display: flex;
            align-items: flex-start;
            padding: 14px 0;
            border-bottom: 1px solid var(--light-gray);
        }
        .result-item:last-child {
            border-bottom: none;
        }
        .result-item-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary-mid);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-right: 12px;
            font-size: 0.875rem;
        }
        .result-item-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 2px;
        }
        .result-item-desc {
            font-size: 0.8125rem;
            color: var(--mid-gray);
        }

        .deep-content-block {
            padding: 32px 0;
        }
        .deep-content-block h3 {
            margin-bottom: 20px;
            color: var(--charcoal);
        }
        .deep-content-block p {
            margin-bottom: 18px;
            font-size: 1rem;
            line-height: 1.9;
            color: var(--charcoal);
            max-width: 820px;
        }
        .deep-content-block img {
            border-radius: 6px;
            margin: 20px 0;
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .news-item {
            display: flex;
            align-items: stretch;
            padding: 20px 0;
            border-bottom: 1px solid var(--light-gray);
            gap: 20px;
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-date-box {
            width: 56px;
            height: 56px;
            background: var(--primary-darkest);
            color: #fff;
            border-radius: 6px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-num);
        }
        .news-date-day {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .news-date-mon {
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .news-item-content {
            flex: 1;
        }
        .news-item-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
        }
        .news-item-summary {
            font-size: 0.875rem;
            color: var(--mid-gray);
            line-height: 1.7;
        }
        .news-item-action {
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }

        .faq-accordion .accordion-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            border-radius: 0;
            background: transparent;
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--charcoal);
            font-size: 1.0625rem;
            font-weight: 600;
            padding: 16px 4px;
            border: none;
            box-shadow: none;
            transition: color var(--transition-base), border var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
            border-left: 4px solid var(--primary-mid);
            padding-left: 16px;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary-mid);
        }
        .faq-accordion .accordion-button::after {
            content: '+';
            background: none;
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--primary-mid);
            transform: none;
            width: auto;
            height: auto;
            line-height: 1;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '−';
            transform: none;
            color: var(--primary-mid);
        }
        .faq-accordion .accordion-body {
            padding: 0 4px 16px 20px;
            color: var(--charcoal);
            line-height: 1.8;
            font-size: 0.9375rem;
        }

        .form-section {
            background: var(--primary-light);
            border-radius: var(--radius-card);
            padding: 48px;
        }
        .form-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-medium);
            padding: 32px;
        }
        .form-control-custom {
            width: 100%;
            padding: 12px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--light-gray);
            background: #fff;
            font-size: 0.9375rem;
            font-family: var(--font-cn);
            color: var(--charcoal);
            transition: border var(--transition-base), box-shadow var(--transition-base);
            margin-bottom: 16px;
        }
        .form-control-custom:focus {
            border-color: var(--primary-mid);
            box-shadow: 0 0 0 3px rgba(42, 90, 72, 0.15);
            outline: none;
        }
        .form-label-custom {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--charcoal);
            margin-bottom: 6px;
            display: block;
        }
        .form-privacy {
            font-size: 0.8125rem;
            color: var(--mid-gray);
        }

        .trust-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 12px;
        }
        .trust-item i {
            color: var(--primary-mid);
            margin-right: 10px;
            margin-top: 4px;
            font-size: 0.875rem;
        }
        .trust-item span {
            font-size: 0.875rem;
            color: var(--charcoal);
        }

        .site-footer {
            background: var(--primary-darkest);
            color: rgba(255, 255, 255, 0.78);
            padding: 48px 40px 32px;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .site-footer h5,
        .site-footer .footer-heading {
            color: #fff;
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.8125rem;
            transition: color var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-brand-desc {
            font-size: 0.8125rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 340px;
        }
        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 24px 0;
            padding-top: 16px;
        }
        .site-footer .footer-copyright {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-beian {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 6px;
        }

        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: var(--sidebar-width);
            right: 0;
            background: var(--primary-darkest);
            color: #fff;
            z-index: 1035;
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -2px 12px rgba(20, 41, 33, 0.15);
        }
        .floating-cta-bar .cta-text {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.85);
        }

        .pricing-card {
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            background: #fff;
            padding: 28px 24px;
            text-align: center;
            transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
        }
        .pricing-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .pricing-card.recommended {
            border-color: var(--accent);
            box-shadow: var(--shadow-medium);
            position: relative;
        }
        .pricing-card.recommended::before {
            content: '推荐';
            position: absolute;
            top: -10px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 16px;
            border-radius: var(--radius-badge);
        }
        .pricing-price {
            font-family: var(--font-num);
            font-size: 2rem;
            font-weight: 700;
            color: var(--charcoal);
            margin: 12px 0;
        }
        .pricing-price span {
            font-size: 0.875rem;
            color: var(--mid-gray);
            font-weight: 400;
        }
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 16px 0 20px;
            text-align: left;
        }
        .pricing-features li {
            font-size: 0.8125rem;
            color: var(--mid-gray);
            padding: 4px 0;
            padding-left: 20px;
            position: relative;
        }
        .pricing-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary-mid);
            font-weight: 700;
        }

        .step-item {
            text-align: center;
            padding: 20px;
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 12px;
        }
        .step-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
        }
        .step-desc {
            font-size: 0.8125rem;
            color: var(--mid-gray);
            line-height: 1.6;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--light-gray);
            transition: border var(--transition-base), box-shadow var(--transition-base);
        }
        .testimonial-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
        }
        .testimonial-stars {
            color: var(--amber-gold);
            font-size: 0.8125rem;
            margin-bottom: 8px;
        }
        .testimonial-text {
            font-size: 0.875rem;
            color: var(--charcoal);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .testimonial-author {
            font-size: 0.8125rem;
            color: var(--mid-gray);
            font-weight: 500;
        }

        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            margin-bottom: 8px;
        }
        .section-header .section-sub {
            font-size: 0.9375rem;
            color: var(--mid-gray);
            max-width: 560px;
        }

        @media (max-width: 1199.98px) {
            .main-content {
                padding: 32px;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .mobile-navbar {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .main-content {
                padding: 20px;
            }
            .floating-cta-bar {
                left: 0;
            }
            .hero-section {
                padding: 40px 24px 32px;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-metrics {
                grid-template-columns: 1fr 1fr;
                margin-top: 24px;
            }
            .compare-section {
                padding: 32px 20px;
            }
            .compare-divider {
                display: none;
            }
            .form-section {
                padding: 32px 20px;
            }
            .site-footer {
                padding: 32px 20px 24px;
            }
            .floating-cta-bar {
                padding: 8px 16px;
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        @media (max-width: 767.98px) {
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .hero-metrics {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-metric-value {
                font-size: 1.75rem;
            }
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-date-box {
                width: 44px;
                height: 44px;
            }
            .news-date-day {
                font-size: 1.125rem;
            }
            .news-item-action {
                align-self: flex-start;
            }
            .btn-primary-custom,
            .btn-secondary-custom,
            .btn-ghost-custom {
                width: 100%;
                text-align: center;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            h1 {
                font-size: 1.875rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .deep-content-block p {
                font-size: 0.9375rem;
            }
            .service-card-img {
                aspect-ratio: 16 / 10;
            }
            .compare-bar-label {
                font-size: 0.8125rem;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 575.98px) {
            .hero-metric-value {
                font-size: 1.5rem;
            }
            .hero-trust-bar {
                font-size: 0.6875rem;
                gap: 4px 10px;
            }
            .hero-trust-bar span::after {
                margin-left: 10px;
            }
            .floating-cta-bar .btn-ghost-custom {
                width: auto;
                padding: 6px 12px;
                font-size: 0.8125rem;
            }
            .floating-cta-bar .cta-text {
                font-size: 0.75rem;
            }
            .site-footer {
                border-radius: 0;
            }
        }

/* roulang page: category1 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary-mid);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
        }
        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }
        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
            text-decoration: none;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }
        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }
        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
            text-decoration: none;
        }
        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            text-decoration: none;
        }
        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }
        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
            padding: 10px 16px;
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-navbar .navbar-brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.4rem;
            padding: 4px 8px;
        }
        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
            margin-top: 10px;
            border-radius: 8px;
        }
        .mobile-navbar .navbar-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
        }
        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
            text-decoration: none;
            display: block;
            border-left: 4px solid transparent;
        }
        .mobile-navbar .navbar-nav a:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            background: var(--primary-mid);
            text-decoration: none;
        }
        section {
            margin-bottom: var(--section-gap);
        }
        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--charcoal);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--mid-gray);
            max-width: 680px;
            line-height: 1.8;
        }
        .btn {
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
            text-decoration: none;
        }
        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 10px 24px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background var(--transition-base), box-shadow var(--transition-base);
            display: inline-block;
            text-decoration: none;
        }
        .btn-primary-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(198, 78, 31, 0.3);
        }
        .btn-outline-custom {
            background: transparent;
            border: 1px solid var(--primary-mid);
            color: var(--primary-mid);
            padding: 10px 20px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
            display: inline-block;
            text-decoration: none;
        }
        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }
        .btn-ghost-white {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            padding: 10px 20px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background var(--transition-base), color var(--transition-base);
            display: inline-block;
            text-decoration: none;
        }
        .btn-ghost-white:hover {
            background: #fff;
            color: var(--primary-darkest);
            text-decoration: none;
        }
        .text-link {
            color: var(--accent-dark);
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        .text-link:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .badge-custom {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .badge-primary {
            background: var(--primary-light);
            color: var(--primary-mid);
        }
        .badge-gold {
            background: #F5EFE0;
            color: #8A6A2F;
        }
        .hero-section {
            background: linear-gradient(135deg, #142921 0%, #1E3D32 55%, #2A5A48 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-bottom: var(--section-gap);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .hero-section h1 {
            color: #fff;
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-subtitle {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 600px;
            line-height: 1.8;
            position: relative;
            z-index: 2;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 28px;
            position: relative;
            z-index: 2;
        }
        .hero-badge-item {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-btn);
            padding: 8px 16px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-badge-item i {
            color: var(--amber-gold);
        }
        .news-list-section {
            margin-bottom: var(--section-gap);
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--light-gray);
            transition: background var(--transition-base);
        }
        .news-item:hover {
            background: rgba(232, 240, 236, 0.4);
        }
        .news-date-box {
            width: 56px;
            height: 56px;
            background: var(--primary-darkest);
            color: #fff;
            border-radius: 6px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-num);
        }
        .news-date-box .day {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .news-date-box .month-year {
            font-size: 0.65rem;
            font-weight: 400;
            opacity: 0.8;
            letter-spacing: 0.5px;
        }
        .news-body {
            flex: 1;
        }
        .news-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-summary {
            font-size: 0.9375rem;
            color: var(--mid-gray);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-meta {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }
        .news-tag {
            font-size: 0.75rem;
            color: var(--moss-green);
            background: var(--primary-light);
            padding: 2px 12px;
            border-radius: var(--radius-badge);
            font-weight: 500;
        }
        .news-sidebar {
            background: var(--card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--light-gray);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-widget-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary-light);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            font-size: 0.8125rem;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: var(--bg-warm);
            color: var(--mid-gray);
            text-decoration: none;
            border: 1px solid var(--light-gray);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        }
        .tag-cloud a:hover {
            background: var(--primary-light);
            color: var(--primary-mid);
            border-color: var(--primary-mid);
            text-decoration: none;
        }
        .archive-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .archive-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--light-gray);
            font-size: 0.875rem;
            color: var(--mid-gray);
        }
        .archive-list li:last-child {
            border-bottom: none;
        }
        .archive-list i {
            color: var(--moss-green);
            margin-right: 8px;
            font-size: 0.75rem;
        }
        .pagination-section {
            display: flex;
            justify-content: center;
            margin: 40px 0;
        }
        .pagination-section .page-link {
            color: var(--primary-mid);
            border: 1px solid var(--light-gray);
            padding: 8px 16px;
            margin: 0 4px;
            border-radius: var(--radius-btn);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            text-decoration: none;
        }
        .pagination-section .page-link:hover {
            background: var(--primary-light);
            border-color: var(--primary-mid);
            color: var(--primary-mid);
            text-decoration: none;
        }
        .pagination-section .page-link.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .deep-content-section {
            background: transparent;
            padding: 0;
        }
        .deep-content-block {
            margin-bottom: 36px;
        }
        .deep-content-block h3 {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .deep-content-block p {
            font-size: 1rem;
            color: var(--charcoal);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .stats-section {
            background: var(--primary-light);
            border-radius: var(--radius-card);
            padding: 36px 32px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stats-card {
            text-align: center;
            padding: 20px;
            background: var(--card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .stats-number {
            font-family: var(--font-num);
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--amber-gold);
            line-height: 1.2;
        }
        .stats-label {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin-top: 6px;
        }
        .faq-section {
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }
        .faq-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            background: transparent;
            padding: 0;
        }
        .faq-item .accordion-button {
            background: transparent;
            color: var(--charcoal);
            font-weight: 600;
            font-size: 1.125rem;
            padding: 16px 4px;
            border: none;
            box-shadow: none;
            transition: color var(--transition-base), border-left var(--transition-base);
            border-left: 4px solid transparent;
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary-mid);
            border-left: 4px solid var(--primary-mid);
        }
        .faq-item .accordion-button:focus {
            box-shadow: none;
            border-left: 4px solid var(--primary-mid);
        }
        .faq-item .accordion-button::after {
            content: '+';
            background-image: none;
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--primary-mid);
            transform: none;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item .accordion-button:not(.collapsed)::after {
            content: '−';
            transform: none;
            color: var(--primary-mid);
        }
        .faq-item .accordion-body {
            padding: 0 4px 16px 20px;
            color: var(--charcoal);
            line-height: 1.8;
            font-size: 0.9375rem;
        }
        .cta-section {
            background: var(--primary-darkest);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            justify-content: space-between;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 480px;
            line-height: 1.8;
        }
        .site-footer {
            background: var(--primary-darkest);
            color: #fff;
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-heading {
            font-size: 1.0625rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }
        .site-footer .footer-brand-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            line-height: 1.8;
            margin-top: 12px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            text-decoration: none;
            transition: color var(--transition-base);
            line-height: 2.2;
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-copyright {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-beian {
            color: rgba(255, 255, 255, 0.5);
        }
        .page-cover-img {
            border-radius: var(--radius-img);
            margin-bottom: 24px;
            width: 100%;
            height: 280px;
            object-fit: cover;
            background: #E8ECEA;
        }
        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .mobile-navbar {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .main-content {
                padding: 32px 20px;
            }
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .hero-section {
                padding: 32px 24px;
            }
            .hero-section h1 {
                font-size: 1.75rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                padding: 32px 24px;
                flex-direction: column;
                text-align: left;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-date-box {
                width: 48px;
                height: 48px;
            }
            .news-date-box .day {
                font-size: 1rem;
            }
            .news-sidebar {
                margin-top: 32px;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 767.98px) {
            .main-content {
                padding: 24px 16px;
            }
            .hero-section {
                padding: 24px 16px;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stats-card {
                padding: 16px;
            }
            .stats-number {
                font-size: 1.75rem;
            }
            .cta-section {
                padding: 24px 16px;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .pagination-section {
                flex-wrap: wrap;
            }
            .pagination-section .page-link {
                padding: 6px 12px;
                font-size: 0.8125rem;
            }
            .footer-divider {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stats-number {
                font-size: 1.5rem;
            }
            .hero-badge-row {
                gap: 8px;
            }
            .hero-badge-item {
                font-size: 0.75rem;
                padding: 6px 10px;
            }
            .news-title {
                font-size: 1rem;
            }
            .news-summary {
                font-size: 0.875rem;
            }
            .deep-content-block h3 {
                font-size: 1.15rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--charcoal);
            margin-top: 0;
            line-height: 1.4;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }

        h3 {
            font-size: 1.375rem;
            font-weight: 600;
            line-height: 1.5;
        }

        h4 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
        }

        p {
            margin-bottom: 1rem;
            color: var(--charcoal);
        }

        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }

        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }

        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
            text-decoration: none;
        }

        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
        }

        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            line-height: 1.6;
        }

        .sidebar-container {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1030;
            height: 100vh;
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }

        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
            padding: 0;
        }

        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-navbar .navbar-brand .brand-badge {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
        }

        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.5rem;
            padding: 8px;
            box-shadow: none;
        }

        .mobile-navbar .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }

        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
            border-left: 4px solid transparent;
            transition: background 150ms ease, color 150ms ease;
        }

        .mobile-navbar .navbar-nav a:hover {
            color: #fff;
            background: var(--primary);
            text-decoration: none;
        }

        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            background: var(--primary-mid);
        }

        section {
            margin-bottom: var(--section-gap);
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-dark);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--mid-gray);
            font-size: 1rem;
            max-width: 720px;
            line-height: 1.85;
        }

        .btn-primary-custom {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            line-height: 1.5;
            text-align: center;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            cursor: pointer;
        }

        .btn-primary-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(198, 78, 31, 0.25);
        }

        .btn-outline-custom {
            display: inline-block;
            background: transparent;
            color: var(--primary-mid);
            border: 1px solid var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            line-height: 1.5;
            text-align: center;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }

        .btn-ghost-light {
            display: inline-block;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            line-height: 1.5;
            text-align: center;
            transition: background var(--transition-base), border-color var(--transition-base);
            cursor: pointer;
        }

        .btn-ghost-light:hover {
            background: #fff;
            color: var(--primary-darkest);
            text-decoration: none;
            border-color: #fff;
        }

        .text-link-custom {
            color: var(--accent-dark);
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }

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

        .badge-custom {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            letter-spacing: 0.5px;
        }

        .badge-green {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-mid);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            letter-spacing: 0.5px;
        }

        .badge-gold {
            display: inline-block;
            background: #FDF3E3;
            color: var(--amber-gold);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            letter-spacing: 0.5px;
        }

        .card-custom {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            overflow: hidden;
            height: 100%;
        }

        .card-custom:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .card-img-cover {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background-color: #E8ECEA;
            border-radius: 0;
        }

        .card-body-custom {
            padding: 24px;
        }

        .hero-section {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-medium);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.03) 0%, transparent 60%),
                              radial-gradient(circle at 80% 70%, rgba(255,255,255,0.04) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-section h1 {
            color: #fff;
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .hero-section .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.0625rem;
            line-height: 1.85;
            max-width: 720px;
            position: relative;
            z-index: 1;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            margin-top: 28px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

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

        .metric-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 20px 16px;
            text-align: center;
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .metric-number {
            font-family: var(--font-num);
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--amber-gold);
            line-height: 1.2;
        }

        .metric-unit {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.8);
            margin-left: 4px;
        }

        .metric-label {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        .metric-change {
            font-size: 0.75rem;
            font-weight: 600;
            margin-top: 6px;
            display: inline-block;
            padding: 2px 8px;
            border-radius: var(--radius-badge);
        }

        .metric-change.up {
            color: #7EE0A3;
            background: rgba(126, 224, 163, 0.12);
        }

        .metric-change.down {
            color: #FF9B7A;
            background: rgba(232, 98, 44, 0.12);
        }

        .program-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .program-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .program-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .program-card .program-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background-color: #E8ECEA;
        }

        .program-card .program-body {
            padding: 20px 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .program-card .program-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .program-card .program-desc {
            font-size: 0.9375rem;
            color: var(--mid-gray);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .program-card .program-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }

        .process-strip {
            background: var(--primary-light);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            text-align: center;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 28px;
            text-align: left;
        }

        .process-step {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .process-step-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--primary-mid);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .process-step-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--charcoal);
        }

        .process-step-desc {
            font-size: 0.875rem;
            color: var(--mid-gray);
            line-height: 1.7;
        }

        .deep-content {
            background: transparent;
            padding: 0;
        }

        .deep-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .deep-content p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--charcoal);
            margin-bottom: 20px;
        }

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

        .scenario-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .scenario-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
        }

        .scenario-card .scenario-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--accent-light);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            margin-bottom: 12px;
        }

        .scenario-card .scenario-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .scenario-card .scenario-desc {
            font-size: 0.875rem;
            color: var(--mid-gray);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .faq-accordion .accordion-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            background: transparent;
            border-radius: 0;
        }

        .faq-accordion .accordion-item:first-child {
            border-top: 1px solid var(--light-gray);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            border: none;
            box-shadow: none;
            padding: 16px 4px;
            font-family: var(--font-cn);
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--charcoal);
            border-left: 4px solid transparent;
            transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base);
            border-radius: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary-mid);
            border-left-color: var(--primary-mid);
            box-shadow: none;
        }

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

        .faq-accordion .accordion-button::after {
            font-family: 'Font Awesome 6 Free';
            font-weight: 600;
            content: '\2b';
            background-image: none;
            color: var(--primary-mid);
            transition: transform var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            background-image: none;
            transform: rotate(0deg);
            color: var(--primary-mid);
        }

        .faq-accordion .accordion-body {
            padding: 0 4px 16px 20px;
            font-size: 0.9375rem;
            color: var(--charcoal);
            line-height: 1.8;
        }

        .faq-container-max {
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-section {
            background: var(--primary-darkest);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-medium);
        }

        .cta-section .cta-text h2 {
            color: #fff;
            margin-bottom: 8px;
            font-size: 1.625rem;
        }

        .cta-section .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 0;
            font-size: 0.9375rem;
            max-width: 500px;
        }

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

        .site-footer {
            background: var(--primary-darkest);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .site-footer .footer-heading {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.875rem;
            line-height: 2.2;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .site-footer .footer-brand-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .image-fallback {
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #E8ECEA;
            color: var(--mid-gray);
            font-size: 0.875rem;
            min-height: 100%;
        }

        @media (max-width: 1199.98px) {
            .main-content {
                padding: 40px 32px;
            }
            .program-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar-container {
                display: none !important;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-navbar {
                display: block;
            }
            .main-content {
                padding: 32px 24px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.625rem;
            }
            .hero-section {
                padding: 36px 28px;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 767.98px) {
            .main-content {
                padding: 24px 20px;
            }
            .program-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .hero-section {
                padding: 28px 20px;
                border-radius: 10px;
            }
            .hero-section h1 {
                font-size: 1.75rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary-custom,
            .hero-cta-group .btn-ghost-light {
                width: 100%;
                text-align: center;
            }
            .metric-number {
                font-size: 1.75rem;
            }
            .process-strip {
                padding: 24px 16px;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-section .cta-actions .btn-primary-custom,
            .cta-section .cta-actions .btn-outline-custom {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            h1 {
                font-size: 1.625rem;
            }
            h2 {
                font-size: 1.375rem;
            }
            .main-content {
                padding: 20px 16px;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .hero-section .hero-subtitle {
                font-size: 0.9375rem;
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .metric-label {
                font-size: 0.75rem;
            }
            .card-body-custom {
                padding: 16px;
            }
            .program-card .program-body {
                padding: 16px;
            }
            .footer-divider {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary-mid);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1030;
            overflow-y: auto;
        }
        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }
        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }
        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }
        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
        }
        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
        }
        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            line-height: 1.6;
        }
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }
        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1025;
            height: 56px;
        }
        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-navbar .navbar-brand .brand-ico {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            font-family: var(--font-num);
        }
        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.4rem;
            padding: 4px 8px;
        }
        .mobile-navbar .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }
        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
            max-height: calc(100vh - 56px);
            overflow-y: auto;
        }
        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
            text-decoration: none;
            border-left: 4px solid transparent;
            display: block;
        }
        .mobile-navbar .navbar-nav a:hover {
            color: #fff;
            background: var(--primary);
        }
        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left: 4px solid var(--accent);
            background: var(--primary-mid);
        }
        section {
            margin-bottom: var(--section-gap);
        }
        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        .text-secondary-custom {
            color: var(--mid-gray);
        }
        .h2-custom {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        .h3-custom {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
            margin-bottom: 6px;
        }
        .h4-custom {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }
        .lead-custom {
            font-size: 1.0625rem;
            line-height: 1.75;
            color: var(--mid-gray);
        }
        .card-custom {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }
        .card-custom:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn-primary-custom {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            text-align: center;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
            text-decoration: none;
        }
        .btn-primary-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-medium);
        }
        .btn-ghost-custom {
            display: inline-block;
            background: transparent;
            color: var(--primary-mid);
            border: 1px solid var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            text-align: center;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), text-decoration var(--transition-base);
            text-decoration: none;
        }
        .btn-ghost-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }
        .btn-block-custom {
            display: block;
            width: 100%;
        }
        .text-link-custom {
            color: var(--accent-dark);
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        .text-link-custom:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .badge-custom {
            display: inline-block;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: var(--radius-badge);
            background: var(--accent-light);
            color: var(--accent-dark);
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .badge-primary {
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-gold {
            background: #FDF3E0;
            color: #8A6D2F;
        }
        .badge-green {
            background: #E5F0E8;
            color: #2D6A4F;
        }
        .badge-gray {
            background: #EDF0ED;
            color: #5A625D;
        }
        .metric-number {
            font-family: var(--font-num);
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--amber-gold);
            letter-spacing: -0.5px;
        }
        .metric-unit {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-left: 2px;
        }
        .metric-label {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 400;
        }
        .metric-card-dark {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-btn);
            padding: 20px;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .metric-card-dark:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.28);
        }
        .metric-trend {
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .metric-trend.up {
            color: #7BC89E;
        }
        .metric-trend.down {
            color: #F5A87F;
        }
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--card-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            font-size: 0.9375rem;
        }
        .table-custom thead th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            white-space: nowrap;
            border-bottom: none;
        }
        .table-custom tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--light-gray);
            color: var(--charcoal);
            vertical-align: middle;
        }
        .table-custom tbody tr {
            transition: background var(--transition-base);
        }
        .table-custom tbody tr:hover {
            background: var(--primary-light);
        }
        .table-custom tbody tr:last-child td {
            border-bottom: none;
        }
        .status-badge {
            display: inline-block;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: var(--radius-badge);
            font-weight: 500;
            white-space: nowrap;
        }
        .status-badge.finished {
            background: #E5F0E8;
            color: #2D6A4F;
        }
        .status-badge.ongoing {
            background: #FBE8DD;
            color: #C64E1F;
        }
        .status-badge.upcoming {
            background: #EDF0ED;
            color: #5A625D;
        }
        .data-highlight {
            font-family: var(--font-num);
            font-weight: 600;
            color: var(--amber-gold);
        }
        .section-dark-bg {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 40px;
            color: #fff;
        }
        .section-light-bg {
            background: #EDF0ED;
            border-radius: var(--radius-card);
            padding: 40px;
        }
        .faq-custom .accordion-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            background: transparent;
            margin-bottom: 0;
        }
        .faq-custom .accordion-button {
            background: transparent;
            color: var(--charcoal);
            font-weight: 600;
            font-size: 1.125rem;
            padding: 16px 4px;
            border: none;
            box-shadow: none;
            transition: color var(--transition-base), border-left var(--transition-base);
            border-left: 4px solid transparent;
        }
        .faq-custom .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
            border-left: 4px solid var(--primary);
            box-shadow: none;
        }
        .faq-custom .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }
        .faq-custom .accordion-button::after {
            content: '+';
            background-image: none;
            color: var(--primary-mid);
            font-size: 1.4rem;
            font-weight: 400;
            transition: transform 200ms ease;
            transform: rotate(0deg);
            width: auto;
            height: auto;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-custom .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            content: '+';
        }
        .faq-custom .accordion-body {
            padding: 0 4px 16px 20px;
            color: var(--charcoal);
            line-height: 1.8;
        }
        .form-control-custom {
            width: 100%;
            padding: 12px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--light-gray);
            background: #fff;
            font-size: 0.9375rem;
            color: var(--charcoal);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .form-control-custom:focus {
            border-color: var(--primary-mid);
            box-shadow: 0 0 0 3px var(--primary-light);
            outline: none;
        }
        .form-label-custom {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--charcoal);
            margin-bottom: 6px;
            display: block;
        }
        .cta-section {
            background: var(--accent-light);
            border-radius: var(--radius-card);
            padding: 48px 40px;
        }
        .site-footer {
            background: var(--primary-darkest);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 48px 24px;
            margin-top: 24px;
        }
        .site-footer .footer-heading {
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.875rem;
            line-height: 2;
            transition: color var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-brand-desc {
            font-size: 0.875rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
        }
        .site-footer .footer-divider {
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.55);
            gap: 8px;
        }
        .img-placeholder {
            background: #E8ECEA;
            border-radius: var(--radius-img);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--mid-gray);
            font-size: 0.875rem;
            min-height: 180px;
            width: 100%;
            overflow: hidden;
        }
        .img-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .step-flow {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding: 24px;
            background: var(--primary-light);
            border-radius: var(--radius-card);
        }
        .step-item {
            flex: 1;
            min-width: 180px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .step-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-mid);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.875rem;
            flex-shrink: 0;
        }
        .step-text {
            font-size: 0.875rem;
            color: var(--charcoal);
            line-height: 1.6;
        }
        .step-text strong {
            display: block;
            font-weight: 600;
            font-size: 0.9375rem;
        }
        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-navbar {
                display: block;
            }
            .main-content {
                padding: 32px 32px;
            }
            .section-dark-bg,
            .section-light-bg,
            .cta-section {
                padding: 28px 24px;
            }
            .metric-number {
                font-size: 2rem;
            }
            .site-footer {
                padding: 32px 24px 20px;
            }
        }
        @media (max-width: 767.98px) {
            .main-content {
                padding: 20px;
            }
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .h2-custom {
                font-size: 1.5rem;
            }
            .h3-custom {
                font-size: 1.125rem;
            }
            .metric-number {
                font-size: 1.75rem;
            }
            .table-custom {
                font-size: 0.8125rem;
            }
            .table-custom thead th {
                padding: 10px 10px;
                font-size: 0.8125rem;
            }
            .table-custom tbody td {
                padding: 10px 10px;
            }
            .section-dark-bg {
                padding: 20px 16px;
            }
            .card-custom {
                padding: 16px;
            }
            .cta-section {
                padding: 24px 16px;
            }
            .step-flow {
                padding: 16px;
                gap: 12px;
            }
            .step-item {
                min-width: 100%;
            }
            .site-footer {
                padding: 24px 16px 16px;
            }
            .site-footer .footer-divider {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 575.98px) {
            .metric-number {
                font-size: 1.5rem;
            }
            .btn-primary-custom,
            .btn-ghost-custom {
                padding: 10px 16px;
                font-size: 0.875rem;
                width: 100%;
                text-align: center;
            }
            .lead-custom {
                font-size: 0.9375rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }

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

        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }

        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }

        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
        }

        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
        }

        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }

        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
        }

        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.5rem;
        }

        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
        }

        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left: 4px solid var(--accent);
        }

        section {
            margin-bottom: var(--section-gap);
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--charcoal);
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 1.875rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--charcoal);
        }

        h3 {
            font-size: 1.375rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }

        h4 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }

        p {
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
        }

        .text-secondary-custom {
            color: var(--mid-gray);
            font-size: 0.875rem;
            font-weight: 400;
            line-height: 1.6;
        }

        .btn-primary-custom {
            background-color: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            text-decoration: none;
            display: inline-block;
            cursor: pointer;
        }

        .btn-primary-custom:hover {
            background-color: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-card-hover);
        }

        .btn-ghost-white {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
            text-decoration: none;
            display: inline-block;
            cursor: pointer;
        }

        .btn-ghost-white:hover {
            background: #fff;
            color: var(--primary-darkest);
            border-color: #fff;
            text-decoration: none;
        }

        .btn-outline-custom {
            background: transparent;
            border: 1px solid var(--primary-mid);
            color: var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
            text-decoration: none;
            display: inline-block;
            cursor: pointer;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }

        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            padding: 2px 12px;
            font-weight: 500;
            display: inline-block;
        }

        .badge-primary-light {
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            padding: 2px 12px;
            font-weight: 500;
            display: inline-block;
        }

        .card-custom {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            overflow: hidden;
        }

        .card-custom:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .card-body-custom {
            padding: 24px;
        }

        .img-placeholder {
            background: #E8ECEA;
            border-radius: var(--radius-img);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--mid-gray);
            font-size: 0.875rem;
            min-height: 180px;
        }

        .timeline-wrapper {
            position: relative;
            padding: 20px 0;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 3px;
            background: var(--light-gray);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 42px;
            width: 100%;
            display: flex;
            align-items: flex-start;
            justify-content: flex-start;
        }

        .timeline-item:nth-child(odd) {
            flex-direction: row;
        }

        .timeline-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .timeline-node {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 16px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--primary-mid);
            top: 4px;
            z-index: 2;
        }

        .timeline-content {
            width: calc(50% - 40px);
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
            transition: border var(--transition-base), box-shadow var(--transition-base);
        }

        .timeline-content:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
        }

        .timeline-date {
            font-family: var(--font-num);
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-dark);
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .timeline-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .timeline-desc {
            font-size: 0.9375rem;
            color: var(--mid-gray);
            line-height: 1.7;
            margin: 0;
        }

        .partner-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .partner-item {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 14px 22px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--mid-gray);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: border var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
        }

        .partner-item:hover {
            border-color: var(--primary-mid);
            color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .partner-item i {
            color: var(--primary-mid);
            font-size: 1.125rem;
        }

        .stats-row-custom {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 24px;
        }

        .stat-box {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .stat-number {
            font-family: var(--font-num);
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--amber-gold);
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .stat-unit {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin-left: 4px;
            font-weight: 400;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin-top: 6px;
        }

        .cta-section {
            background: var(--primary-darkest);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: rgba(232, 98, 44, 0.15);
            border-radius: 50%;
            transform: translate(100px, -100px);
            pointer-events: none;
        }

        .cta-title {
            color: #fff;
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .cta-text {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            line-height: 1.8;
            max-width: 700px;
            margin-bottom: 24px;
        }

        .intro-banner {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .intro-banner h1 {
            color: #fff;
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .intro-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.125rem;
            line-height: 1.85;
            max-width: 800px;
            margin-bottom: 0;
        }

        .value-card {
            background: var(--primary-light);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid rgba(42, 90, 72, 0.15);
            height: 100%;
        }

        .value-card h3 {
            color: var(--primary-darkest);
            font-size: 1.125rem;
            margin-bottom: 10px;
        }

        .value-card p {
            color: var(--mid-gray);
            font-size: 0.9375rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .value-card .icon-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-mid);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            margin-bottom: 14px;
        }

        .site-footer {
            background: var(--primary-darkest);
            color: rgba(255, 255, 255, 0.85);
            padding: 40px 0 24px;
            width: 100%;
            flex-shrink: 0;
        }

        .site-footer .footer-heading {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.875rem;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-brand-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-copyright {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-beian {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .sidebar-container {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        @media (max-width: 991.98px) {
            .sidebar-container {
                display: none;
            }

            .mobile-navbar {
                display: block;
            }

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

            .main-content {
                padding: 32px 20px;
            }

            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.5rem;
            }

            .intro-banner {
                padding: 32px 22px;
            }

            .intro-banner h1 {
                font-size: 1.875rem;
            }

            .timeline-wrapper::before {
                left: 12px;
                transform: none;
            }

            .timeline-item {
                flex-direction: column !important;
                padding-left: 48px;
            }

            .timeline-node {
                left: 12px;
                transform: translateX(-50%);
            }

            .timeline-content {
                width: 100%;
                padding: 18px 16px;
            }

            .stats-row-custom {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .stat-number {
                font-size: 1.75rem;
            }

            .cta-section {
                padding: 32px 22px;
            }

            .partner-item {
                padding: 10px 16px;
                font-size: 0.8125rem;
            }

            section {
                margin-bottom: var(--section-gap-mobile);
            }
        }

        @media (max-width: 575.98px) {
            .stats-row-custom {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-box {
                padding: 16px 10px;
            }

            .stat-number {
                font-size: 1.5rem;
            }

            .timeline-content {
                padding: 14px 12px;
            }

            .timeline-title {
                font-size: 1rem;
            }

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

            .partner-list {
                gap: 10px;
            }
        }

/* roulang page: category5 */
:root {
        --primary-darkest: #142921;
        --primary: #1E3D32;
        --primary-mid: #2A5A48;
        --primary-light: #E8F0EC;
        --accent: #E8622C;
        --accent-dark: #C64E1F;
        --accent-light: #FBE8DD;
        --charcoal: #1E2420;
        --mid-gray: #5A625D;
        --light-gray: #E2E6E3;
        --bg-warm: #F7F5F0;
        --card-white: #FFFFFF;
        --amber-gold: #C99B3F;
        --moss-green: #5B7A68;
        --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
        --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-badge: 50px;
        --radius-img: 8px;
        --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
        --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
        --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
        --transition-base: 200ms ease;
        --sidebar-width: 270px;
        --section-gap: 88px;
        --section-gap-mobile: 48px;
        --content-max: 1200px;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-cn);
        font-size: 1rem;
        font-weight: 400;
        line-height: 1.85;
        color: var(--charcoal);
        background-color: var(--bg-warm);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        color: var(--primary-mid);
        text-decoration: none;
        transition: color var(--transition-base), text-decoration var(--transition-base);
    }
    a:hover {
        color: var(--primary);
        text-decoration: underline;
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--primary-mid);
        outline-offset: 2px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    h1, h2, h3, h4, h5, h6 {
        color: var(--charcoal);
        font-weight: 700;
        line-height: 1.4;
    }
    .container-page {
        max-width: var(--content-max);
        margin: 0 auto;
        padding: 0 48px;
    }
    section {
        margin-bottom: var(--section-gap);
    }
    .section-label {
        display: inline-block;
        font-size: 0.75rem;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--accent);
        background: var(--accent-light);
        padding: 4px 14px;
        border-radius: var(--radius-badge);
        margin-bottom: 12px;
    }
    .section-title {
        font-size: 1.75rem;
        font-weight: 700;
        color: var(--charcoal);
        margin-bottom: 12px;
    }
    .section-subtitle {
        font-size: 1rem;
        color: var(--mid-gray);
        margin-bottom: 32px;
        max-width: 720px;
        line-height: 1.75;
    }
    .btn-primary-custom {
        background: var(--accent);
        color: #fff;
        padding: 10px 20px;
        border-radius: var(--radius-btn);
        font-size: 0.9375rem;
        font-weight: 500;
        border: none;
        transition: background var(--transition-base), box-shadow var(--transition-base);
        display: inline-block;
        text-decoration: none;
        letter-spacing: 0.5px;
    }
    .btn-primary-custom:hover {
        background: var(--accent-dark);
        color: #fff;
        box-shadow: var(--shadow-card-hover);
        text-decoration: none;
    }
    .btn-outline-custom {
        background: transparent;
        border: 1px solid var(--primary-mid);
        color: var(--primary-mid);
        padding: 10px 20px;
        border-radius: var(--radius-btn);
        font-size: 0.9375rem;
        font-weight: 500;
        transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
        display: inline-block;
        text-decoration: none;
    }
    .btn-outline-custom:hover {
        background: var(--primary-light);
        border-color: var(--primary);
        color: var(--primary);
        text-decoration: none;
    }
    .btn-ghost-custom {
        background: transparent;
        border: 1px solid rgba(255,255,255,0.6);
        color: #fff;
        padding: 10px 20px;
        border-radius: var(--radius-btn);
        font-size: 0.9375rem;
        font-weight: 500;
        transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
        display: inline-block;
        text-decoration: none;
    }
    .btn-ghost-custom:hover {
        background: #fff;
        color: var(--primary-darkest);
        border-color: #fff;
        text-decoration: none;
    }
    .text-link-custom {
        color: var(--accent-dark);
        font-weight: 500;
        font-size: 0.875rem;
        text-decoration: none;
        transition: color var(--transition-base), text-decoration var(--transition-base);
    }
    .text-link-custom:hover {
        color: var(--accent);
        text-decoration: underline;
    }
    .badge-custom {
        display: inline-block;
        font-size: 0.75rem;
        font-weight: 500;
        padding: 2px 12px;
        border-radius: var(--radius-badge);
        letter-spacing: 0.5px;
    }
    .badge-accent {
        background: var(--accent-light);
        color: var(--accent-dark);
    }
    .badge-primary {
        background: var(--primary-light);
        color: var(--primary-mid);
    }
    .badge-gold {
        background: #f5ecd5;
        color: var(--amber-gold);
    }
    .card-custom {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        overflow: hidden;
    }
    .card-custom:hover {
        border-color: var(--primary-mid);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-2px);
    }
    /* Sidebar */
    .sidebar-desktop {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        background: var(--primary-darkest);
        display: flex;
        flex-direction: column;
        z-index: 1000;
        height: 100vh;
        overflow-y: auto;
    }
    .sidebar-brand {
        height: 80px;
        display: flex;
        align-items: center;
        padding: 0 24px;
        flex-shrink: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .sidebar-brand-icon {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: var(--accent);
        color: #fff;
        font-family: var(--font-num);
        font-weight: 700;
        font-size: 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        letter-spacing: -0.5px;
        margin-right: 12px;
        flex-shrink: 0;
    }
    .sidebar-brand-text {
        color: #fff;
        font-size: 1.25rem;
        font-weight: 700;
        letter-spacing: 1px;
        white-space: nowrap;
    }
    .sidebar-nav {
        flex: 1;
        padding: 16px 0;
        display: flex;
        flex-direction: column;
    }
    .sidebar-nav a {
        display: block;
        padding: 12px 24px;
        color: rgba(255, 255, 255, 0.85);
        font-size: 0.9375rem;
        font-weight: 400;
        text-decoration: none;
        transition: background 150ms ease, color 150ms ease, border 150ms ease;
        border-left: 4px solid transparent;
        letter-spacing: 0.5px;
    }
    .sidebar-nav a:hover {
        background: var(--primary);
        color: #fff;
        border-left-color: transparent;
        text-decoration: none;
    }
    .sidebar-nav a.active {
        background: var(--primary-mid);
        color: #fff;
        font-weight: 600;
        border-left-color: var(--accent);
    }
    .sidebar-footer {
        padding: 16px 24px;
        font-size: 0.6875rem;
        color: rgba(255, 255, 255, 0.5);
        flex-shrink: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .main-wrapper {
        margin-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }
    .main-content {
        flex: 1;
        padding: 48px;
        max-width: var(--content-max);
        width: 100%;
        margin: 0 auto;
    }
    .mobile-navbar {
        display: none;
        background: var(--primary-darkest);
    }
    .mobile-navbar .navbar-brand {
        color: #fff;
        font-weight: 700;
        font-size: 1.125rem;
    }
    .mobile-navbar .navbar-toggler {
        border: none;
        background: transparent;
        color: #fff;
        font-size: 1.5rem;
    }
    .mobile-navbar .navbar-toggler:focus {
        box-shadow: none;
    }
    .mobile-navbar .navbar-collapse {
        background: var(--primary-darkest);
    }
    .mobile-navbar .navbar-nav a {
        color: rgba(255, 255, 255, 0.85);
        padding: 14px 20px;
        font-size: 0.9375rem;
        text-decoration: none;
    }
    .mobile-navbar .navbar-nav a.active {
        color: #fff;
        font-weight: 600;
        border-left: 4px solid var(--accent);
    }
    /* Page header */
    .page-header-section {
        padding: 20px 0 36px;
        border-bottom: 1px solid var(--light-gray);
    }
    .page-header-section h1 {
        font-size: 2.5rem;
        font-weight: 700;
        color: var(--charcoal);
        margin-bottom: 12px;
        letter-spacing: 1px;
    }
    .page-header-section .lead {
        font-size: 1.0625rem;
        color: var(--mid-gray);
        max-width: 780px;
        line-height: 1.8;
    }
    /* Feature articles */
    .feature-article-card {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .feature-article-card:hover {
        border-color: var(--primary-mid);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-2px);
    }
    .feature-article-img {
        width: 100%;
        aspect-ratio: 16/9;
        object-fit: cover;
        display: block;
        background: #E8ECEA;
    }
    .feature-article-body {
        padding: 20px 22px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .feature-article-body h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 10px;
        line-height: 1.5;
        color: var(--charcoal);
    }
    .feature-article-body p {
        font-size: 0.9375rem;
        color: var(--mid-gray);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .article-meta {
        font-size: 0.8125rem;
        color: var(--mid-gray);
        margin-bottom: 8px;
    }
    /* Article list */
    .article-list-item {
        display: flex;
        align-items: flex-start;
        padding: 18px 0;
        border-bottom: 1px solid var(--light-gray);
        gap: 16px;
        transition: background var(--transition-base);
    }
    .article-list-item:hover {
        background: var(--primary-light);
    }
    .article-date-badge {
        width: 56px;
        height: 56px;
        border-radius: 6px;
        background: var(--primary-darkest);
        color: #fff;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        font-family: var(--font-num);
    }
    .article-date-badge .day {
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.2;
    }
    .article-date-badge .month {
        font-size: 0.625rem;
        opacity: 0.8;
    }
    .article-list-content {
        flex: 1;
    }
    .article-list-content h3 {
        font-size: 1.0625rem;
        font-weight: 600;
        margin-bottom: 6px;
        color: var(--charcoal);
        line-height: 1.5;
    }
    .article-list-content p {
        font-size: 0.875rem;
        color: var(--mid-gray);
        line-height: 1.7;
        margin-bottom: 4px;
    }
    /* Sidebar */
    .sidebar-widget {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        padding: 22px;
        margin-bottom: 24px;
        box-shadow: var(--shadow-card);
    }
    .sidebar-widget-title {
        font-size: 1.0625rem;
        font-weight: 700;
        color: var(--charcoal);
        margin-bottom: 16px;
        padding-bottom: 10px;
        border-bottom: 2px solid var(--primary-mid);
    }
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .tag-cloud a {
        display: inline-block;
        font-size: 0.8125rem;
        background: var(--bg-warm);
        color: var(--mid-gray);
        padding: 5px 12px;
        border-radius: 4px;
        text-decoration: none;
        border: 1px solid var(--light-gray);
        transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
    }
    .tag-cloud a:hover {
        background: var(--primary-mid);
        color: #fff;
        border-color: var(--primary-mid);
        text-decoration: none;
    }
    .hot-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .hot-list li {
        padding: 10px 0;
        border-bottom: 1px solid var(--light-gray);
        display: flex;
        align-items: baseline;
        gap: 10px;
    }
    .hot-list li:last-child {
        border-bottom: none;
    }
    .hot-list .rank-num {
        font-family: var(--font-num);
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--accent);
        flex-shrink: 0;
        width: 28px;
        text-align: center;
    }
    .hot-list a {
        color: var(--primary-mid);
        font-size: 0.9375rem;
        text-decoration: none;
        transition: color var(--transition-base);
    }
    .hot-list a:hover {
        color: var(--primary);
        text-decoration: underline;
    }
    /* Data insight section */
    .data-insight-section {
        background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
        border-radius: var(--radius-card);
        padding: 36px 32px;
        color: #fff;
    }
    .data-insight-section .section-title {
        color: #fff;
    }
    .data-insight-metric {
        text-align: center;
        padding: 16px;
    }
    .data-insight-metric .metric-number {
        font-family: var(--font-num);
        font-size: 2.5rem;
        font-weight: 700;
        color: var(--amber-gold);
        line-height: 1.2;
    }
    .data-insight-metric .metric-label {
        font-size: 0.875rem;
        color: rgba(255,255,255,0.8);
        margin-top: 4px;
    }
    /* Dimension cards */
    .dimension-card {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        padding: 24px;
        box-shadow: var(--shadow-card);
        height: 100%;
        transition: border var(--transition-base), box-shadow var(--transition-base);
    }
    .dimension-card:hover {
        border-color: var(--primary-mid);
        box-shadow: var(--shadow-card-hover);
    }
    .dimension-icon {
        width: 48px;
        height: 48px;
        border-radius: 10px;
        background: var(--primary-light);
        color: var(--primary-mid);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        margin-bottom: 16px;
    }
    .dimension-card h4 {
        font-size: 1.125rem;
        font-weight: 700;
        margin-bottom: 10px;
        color: var(--charcoal);
    }
    .dimension-card p {
        font-size: 0.9375rem;
        color: var(--mid-gray);
        line-height: 1.75;
        margin-bottom: 0;
    }
    /* Topic research */
    .topic-research-card {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        padding: 22px;
        box-shadow: var(--shadow-card);
        height: 100%;
        transition: border var(--transition-base), box-shadow var(--transition-base);
    }
    .topic-research-card:hover {
        border-color: var(--primary-mid);
        box-shadow: var(--shadow-card-hover);
    }
    .topic-research-card h4 {
        font-size: 1.0625rem;
        font-weight: 700;
        color: var(--charcoal);
        margin-bottom: 8px;
    }
    .topic-research-card p {
        font-size: 0.875rem;
        color: var(--mid-gray);
        margin-bottom: 0;
        line-height: 1.7;
    }
    /* Deep report text */
    .deep-report-section {
        background: var(--card-white);
        border: 1px solid var(--light-gray);
        border-radius: var(--radius-card);
        padding: 36px 32px;
        box-shadow: var(--shadow-card);
    }
    .deep-report-section h3 {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--charcoal);
        margin-bottom: 16px;
        line-height: 1.45;
    }
    .deep-report-section p {
        font-size: 1rem;
        color: var(--charcoal);
        line-height: 1.9;
        margin-bottom: 18px;
    }
    .deep-report-section .brand-intro {
        background: var(--bg-warm);
        border-left: 4px solid var(--accent);
        padding: 18px 22px;
        border-radius: 0 8px 8px 0;
        margin: 24px 0;
        font-size: 0.9375rem;
        color: var(--charcoal);
        line-height: 1.85;
    }
    /* FAQ */
    .faq-section .accordion-item {
        border: none;
        border-bottom: 1px solid var(--light-gray);
        background: transparent;
    }
    .faq-section .accordion-button {
        background: transparent;
        padding: 16px 4px;
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--charcoal);
        box-shadow: none;
        border-left: 4px solid transparent;
        transition: color var(--transition-base), border var(--transition-base);
    }
    .faq-section .accordion-button:not(.collapsed) {
        background: transparent;
        color: var(--primary-mid);
        border-left-color: var(--primary-mid);
        box-shadow: none;
    }
    .faq-section .accordion-button:focus {
        box-shadow: none;
        border-color: var(--primary-mid);
    }
    .faq-section .accordion-button::after {
        display: none;
    }
    .faq-section .accordion-body {
        padding: 0 4px 16px 20px;
        font-size: 0.9375rem;
        color: var(--charcoal);
        line-height: 1.8;
    }
    .faq-section .accordion-item:last-child {
        border-bottom: none;
    }
    /* Form */
    .form-section {
        background: var(--primary-light);
        border-radius: var(--radius-card);
        padding: 36px 32px;
    }
    .form-card {
        background: var(--card-white);
        border-radius: var(--radius-card);
        padding: 28px;
        box-shadow: var(--shadow-medium);
    }
    .form-control-custom {
        width: 100%;
        padding: 12px 14px;
        border-radius: var(--radius-btn);
        border: 1px solid var(--light-gray);
        background: #fff;
        font-size: 0.9375rem;
        transition: border var(--transition-base), box-shadow var(--transition-base);
    }
    .form-control-custom:focus {
        border-color: var(--primary-mid);
        box-shadow: 0 0 0 3px rgba(42, 90, 72, 0.15);
        outline: none;
    }
    .form-label {
        font-size: 0.875rem;
        font-weight: 500;
        color: var(--charcoal);
        margin-bottom: 6px;
        display: block;
    }
    .form-tip {
        font-size: 0.8125rem;
        color: var(--mid-gray);
        margin-top: 12px;
        text-align: center;
    }
    /* Footer */
    .site-footer {
        background: var(--primary-darkest);
        color: rgba(255,255,255,0.8);
        padding: 40px 32px 32px;
        margin-top: 0;
    }
    .site-footer .footer-heading {
        color: #fff;
        font-weight: 700;
        font-size: 1.0625rem;
        margin-bottom: 14px;
    }
    .site-footer .footer-brand-desc {
        font-size: 0.875rem;
        color: rgba(255,255,255,0.7);
        line-height: 1.8;
    }
    .site-footer a {
        color: rgba(255,255,255,0.7);
        font-size: 0.875rem;
        text-decoration: none;
        transition: color var(--transition-base), text-decoration var(--transition-base);
    }
    .site-footer a:hover {
        color: #fff;
        text-decoration: underline;
    }
    .footer-divider {
        border-top: 1px solid rgba(255,255,255,0.15);
        margin-top: 32px;
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
    }
    .footer-copyright, .footer-beian {
        font-size: 0.8125rem;
        color: rgba(255,255,255,0.6);
    }
    /* Responsive */
    @media (max-width: 991px) {
        .sidebar-desktop {
            display: none;
        }
        .mobile-navbar {
            display: block;
        }
        .main-wrapper {
            margin-left: 0;
        }
        .main-content {
            padding: 32px 20px;
        }
        .container-page {
            padding: 0 20px;
        }
        section {
            margin-bottom: var(--section-gap-mobile);
        }
        .page-header-section h1 {
            font-size: 1.875rem;
        }
        .data-insight-metric .metric-number {
            font-size: 2rem;
        }
        .deep-report-section {
            padding: 24px 20px;
        }
        .form-section {
            padding: 24px 20px;
        }
    }
    @media (max-width: 768px) {
        .main-content {
            padding: 24px 16px;
        }
        .container-page {
            padding: 0 16px;
        }
        .page-header-section h1 {
            font-size: 1.65rem;
        }
        .section-title {
            font-size: 1.4rem;
        }
        .article-date-badge {
            width: 44px;
            height: 44px;
        }
        .article-date-badge .day {
            font-size: 1rem;
        }
        .article-date-badge .month {
            font-size: 0.5625rem;
        }
        .data-insight-section {
            padding: 24px 20px;
        }
        .data-insight-metric .metric-number {
            font-size: 1.75rem;
        }
        .footer-divider {
            flex-direction: column;
            align-items: flex-start;
        }
    }
    @media (max-width: 576px) {
        .page-header-section h1 {
            font-size: 1.5rem;
        }
        .btn-primary-custom, .btn-outline-custom, .btn-ghost-custom {
            display: block;
            width: 100%;
            text-align: center;
            margin-bottom: 10px;
        }
        .feature-article-body {
            padding: 16px;
        }
        .dimension-card, .topic-research-card {
            padding: 18px;
        }
    }

/* roulang page: category6 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-cn);
            color: var(--charcoal);
            margin-top: 0;
            font-weight: 700;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 1px;
        }

        h2 {
            font-size: 2rem;
            line-height: 1.4;
            margin-bottom: 1rem;
        }

        h3 {
            font-size: 1.375rem;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 0.75rem;
        }

        h4 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 0.5rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--charcoal);
        }

        /* ========== Sidebar ========== */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }

        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }

        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
        }

        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
        }

        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            line-height: 1.5;
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }

        /* ========== Mobile Navbar ========== */
        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(20, 41, 33, 0.15);
        }

        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            display: flex;
            align-items: center;
            text-decoration: none;
        }

        .mobile-navbar .navbar-brand .brand-icon-mobile {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 0.8125rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 10px;
        }

        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.5rem;
            padding: 4px 8px;
        }

        .mobile-navbar .navbar-toggler:focus {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
            box-shadow: none;
        }

        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
        }

        .mobile-navbar .navbar-nav {
            padding: 8px 0 16px;
        }

        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
            text-decoration: none;
            display: block;
            border-left: 4px solid transparent;
            transition: background 150ms ease, color 150ms ease;
        }

        .mobile-navbar .navbar-nav a:hover {
            color: #fff;
            background: var(--primary);
        }

        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left: 4px solid var(--accent);
            background: var(--primary-mid);
        }

        /* ========== Buttons ========== */
        .btn-primary-custom {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 0.9375rem;
            font-weight: 600;
            line-height: 1.5;
            text-align: center;
            text-decoration: none;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            letter-spacing: 1px;
        }

        .btn-primary-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 14px rgba(200, 78, 31, 0.3);
            transform: translateY(-1px);
        }

        .btn-outline-custom {
            display: inline-block;
            background: transparent;
            color: var(--primary-mid);
            border: 1px solid var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 0.9375rem;
            font-weight: 500;
            line-height: 1.5;
            text-align: center;
            text-decoration: none;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            letter-spacing: 1px;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }

        .btn-ghost-custom {
            display: inline-block;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 0.9375rem;
            font-weight: 500;
            line-height: 1.5;
            text-align: center;
            text-decoration: none;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            letter-spacing: 1px;
        }

        .btn-ghost-custom:hover {
            background: #fff;
            color: var(--primary-darkest);
            border-color: #fff;
            text-decoration: none;
        }

        .btn-link-custom {
            display: inline-block;
            background: none;
            border: none;
            color: var(--accent-dark);
            font-size: 0.875rem;
            font-weight: 600;
            padding: 0;
            text-decoration: none;
            cursor: pointer;
            transition: color var(--transition-base), text-decoration var(--transition-base);
            letter-spacing: 0.5px;
        }

        .btn-link-custom:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .btn-block {
            display: block;
            width: 100%;
        }

        /* ========== Section Base ========== */
        section {
            margin-bottom: var(--section-gap);
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 0.9375rem;
            color: var(--mid-gray);
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .text-secondary-custom {
            color: var(--mid-gray);
        }

        .text-muted-custom {
            color: var(--mid-gray);
            font-size: 0.875rem;
        }

        /* ========== Badge ========== */
        .badge-accent {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 14px;
            letter-spacing: 0.5px;
        }

        .badge-primary-custom {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 14px;
            letter-spacing: 0.5px;
        }

        .badge-gold {
            display: inline-block;
            background: #F5EDD9;
            color: var(--amber-gold);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 14px;
            letter-spacing: 0.5px;
        }

        /* ========== Hero Community ========== */
        .community-hero {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 70%, #1a3329 100%);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: var(--section-gap);
            position: relative;
            overflow: hidden;
        }

        .community-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(232, 98, 44, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .community-hero-content {
            flex: 1;
            position: relative;
            z-index: 1;
        }

        .community-hero h1 {
            color: #fff;
            font-size: 2.75rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
            line-height: 1.25;
        }

        .community-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.0625rem;
            max-width: 520px;
            margin-bottom: 24px;
            line-height: 1.75;
        }

        .community-hero .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-group-hint {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
        }

        .hero-group-hint .hint-icon {
            color: var(--amber-gold);
            font-size: 1.125rem;
        }

        .hero-group-count {
            font-family: var(--font-num);
            color: var(--amber-gold);
            font-weight: 700;
            font-size: 1.25rem;
        }

        .community-hero-visual {
            flex: 0 0 320px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(20, 41, 33, 0.3);
            position: relative;
            z-index: 1;
        }

        .community-hero-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            display: block;
        }

        /* ========== Stats Strip ========== */
        .community-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: var(--section-gap);
        }

        .stat-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }

        .stat-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-family: var(--font-num);
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--amber-gold);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin-bottom: 8px;
        }

        .stat-card .stat-change {
            font-size: 0.75rem;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: var(--radius-badge);
        }

        .stat-change.up {
            background: #E6F2EC;
            color: var(--primary-mid);
        }

        .stat-change.hot {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        /* ========== Featured Posts ========== */
        .featured-posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .featured-post-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .featured-post-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .featured-post-card .featured-badge-row {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .featured-post-card h4 {
            margin-bottom: 8px;
        }

        .featured-post-card h4 a {
            color: var(--charcoal);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .featured-post-card h4 a:hover {
            color: var(--primary-mid);
            text-decoration: underline;
        }

        .featured-post-card .post-excerpt {
            color: var(--mid-gray);
            font-size: 0.9375rem;
            margin-bottom: 16px;
            flex: 1;
        }

        .featured-post-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
            color: var(--mid-gray);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ========== Discussion Layout ========== */
        .discussion-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        .discussion-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .discussion-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 4px;
        }

        .discussion-header h3 {
            margin-bottom: 0;
        }

        .discussion-sort {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.875rem;
            color: var(--mid-gray);
        }

        .discussion-sort a {
            color: var(--mid-gray);
            text-decoration: none;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            transition: background var(--transition-base), color var(--transition-base);
        }

        .discussion-sort a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .discussion-sort a.active-sort {
            background: var(--primary);
            color: #fff;
        }

        .post-card {
            background: #FFFFFF;
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }

        .post-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .post-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            letter-spacing: 1px;
        }

        .post-avatar.avatar-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .post-avatar.avatar-gold {
            background: #F5EDD9;
            color: var(--amber-gold);
        }

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

        .post-meta-top {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.8125rem;
            color: var(--mid-gray);
            margin-bottom: 6px;
        }

        .post-author {
            font-weight: 600;
            color: var(--charcoal);
        }

        .post-divider-dot {
            color: var(--light-gray);
        }

        .post-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .post-title a {
            color: var(--charcoal);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        .post-excerpt {
            color: var(--mid-gray);
            font-size: 0.875rem;
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .post-interactions {
            display: flex;
            gap: 20px;
            font-size: 0.8125rem;
            color: var(--mid-gray);
        }

        .post-interactions span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .post-interactions i {
            font-size: 0.875rem;
            color: var(--primary-mid);
        }

        /* ========== Sidebar ========== */
        .community-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 24px;
        }

        .sidebar-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-card .sidebar-card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card .sidebar-card-title i {
            color: var(--accent);
            font-size: 1rem;
        }

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

        .rules-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--light-gray);
            font-size: 0.875rem;
            color: var(--mid-gray);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }

        .rules-list li:last-child {
            border-bottom: none;
        }

        .rules-list li .rule-icon {
            color: var(--accent);
            font-size: 0.75rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

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

        .rank-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--light-gray);
            font-size: 0.875rem;
        }

        .rank-list li:last-child {
            border-bottom: none;
        }

        .rank-number {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 0.8125rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .rank-number.rank-top {
            background: var(--amber-gold);
            color: #fff;
        }

        .rank-name {
            flex: 1;
            font-weight: 500;
            color: var(--charcoal);
        }

        .rank-score {
            color: var(--mid-gray);
            font-size: 0.75rem;
            font-family: var(--font-num);
        }

        /* ========== Trending Topics ========== */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-tag {
            display: inline-block;
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            color: var(--primary-mid);
            border-radius: var(--radius-badge);
            padding: 8px 20px;
            font-size: 0.875rem;
            font-weight: 500;
            text-decoration: none;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }

        .topic-tag:hover {
            background: var(--primary-light);
            border-color: var(--primary-mid);
            color: var(--primary);
            text-decoration: none;
        }

        .topic-tag.topic-hot {
            background: var(--accent-light);
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        /* ========== Fan Stories ========== */
        .fan-stories-block {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
            margin-bottom: var(--section-gap);
        }

        .fan-stories-grid {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 32px;
            align-items: start;
        }

        .fan-stories-text p {
            line-height: 1.9;
            margin-bottom: 1rem;
            color: var(--charcoal);
        }

        .fan-stories-image {
            border-radius: var(--radius-img);
            overflow: hidden;
        }

        .fan-stories-image img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-img);
        }

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

        .event-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }

        .event-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .event-date {
            font-family: var(--font-num);
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .event-card h4 {
            margin-bottom: 8px;
        }

        .event-card p {
            color: var(--mid-gray);
            font-size: 0.875rem;
            margin-bottom: 12px;
            line-height: 1.7;
        }

        /* ========== Guide ========== */
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .guide-step {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .guide-step .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin: 0 auto 12px;
        }

        .guide-step .step-number {
            font-family: var(--font-num);
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
        }

        .guide-step h4 {
            margin-bottom: 6px;
            font-size: 1rem;
        }

        .guide-step p {
            color: var(--mid-gray);
            font-size: 0.8125rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-wrapper {
            max-width: 760px;
            margin: 0 auto;
        }

        .accordion-custom .accordion-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            background: transparent;
            border-radius: 0;
        }

        .accordion-custom .accordion-item:first-child {
            border-top: 1px solid var(--light-gray);
        }

        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--charcoal);
            font-weight: 600;
            font-size: 1rem;
            padding: 16px 4px;
            border: none;
            box-shadow: none;
            transition: color var(--transition-base), border-color var(--transition-base);
            border-left: 4px solid transparent;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
            border-left-color: var(--primary-mid);
            padding-left: 12px;
        }

        .accordion-custom .accordion-button:focus {
            outline: none;
            box-shadow: none;
        }

        .accordion-custom .accordion-button::after {
            content: '+';
            background-image: none;
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--primary-mid);
            width: auto;
            height: auto;
            line-height: 1;
            transform: rotate(0deg);
            transition: transform var(--transition-base);
            margin-left: auto;
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: '−';
            transform: rotate(0deg);
            color: var(--primary-mid);
        }

        .accordion-custom .accordion-body {
            padding: 0 4px 16px 20px;
            color: var(--charcoal);
            font-size: 0.9375rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .community-cta {
            background: var(--primary-darkest);
            border-radius: var(--radius-card);
            padding: 48px;
            text-align: center;
            color: #fff;
            margin-bottom: 0;
        }

        .community-cta h2 {
            color: #fff;
            margin-bottom: 12px;
        }

        .community-cta p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 24px;
        }

        .community-cta .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-darkest);
            padding: 48px 48px 24px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0;
        }

        .site-footer .footer-heading {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition-base);
            font-size: 0.875rem;
            line-height: 2;
        }

        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-brand-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-divider {
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-navbar {
                display: block;
            }
            .main-content {
                padding: 32px;
            }
            .community-hero {
                flex-direction: column;
                padding: 40px 28px;
                gap: 28px;
            }
            .community-hero h1 {
                font-size: 2.25rem;
            }
            .community-hero-visual {
                flex: 0 0 auto;
                width: 100%;
            }
            .community-hero-visual img {
                height: 220px;
            }
            .community-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .discussion-layout {
                grid-template-columns: 1fr;
            }
            .community-sidebar {
                position: static;
            }
            .featured-posts-grid {
                grid-template-columns: 1fr;
            }
            .fan-stories-grid {
                grid-template-columns: 1fr;
            }
            .events-grid {
                grid-template-columns: 1fr 1fr;
            }
            .guide-steps {
                grid-template-columns: 1fr 1fr;
            }
            section {
                margin-bottom: 56px;
            }
            .site-footer {
                padding: 32px 24px 20px;
            }
        }

        @media (max-width: 767px) {
            .main-content {
                padding: 20px;
            }
            .community-hero {
                padding: 28px 20px;
                border-radius: var(--radius-card);
            }
            .community-hero h1 {
                font-size: 1.75rem;
            }
            .community-hero .hero-subtitle {
                font-size: 0.9375rem;
            }
            .community-hero .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .community-hero .hero-cta-group .btn-primary-custom,
            .community-hero .hero-cta-group .btn-ghost-custom {
                width: 100%;
            }
            .community-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px;
            }
            .stat-card .stat-number {
                font-size: 1.75rem;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .guide-steps {
                grid-template-columns: 1fr;
            }
            .fan-stories-block {
                padding: 24px 20px;
            }
            .post-card {
                padding: 16px;
                gap: 12px;
            }
            .post-avatar {
                width: 36px;
                height: 36px;
                font-size: 0.8125rem;
            }
            .community-cta {
                padding: 32px 20px;
            }
            .community-cta .cta-buttons {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .footer-divider {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 575px) {
            .community-stats {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 12px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary-darkest: #142921;
            --primary: #1E3D32;
            --primary-mid: #2A5A48;
            --primary-light: #E8F0EC;
            --accent: #E8622C;
            --accent-dark: #C64E1F;
            --accent-light: #FBE8DD;
            --charcoal: #1E2420;
            --mid-gray: #5A625D;
            --light-gray: #E2E6E3;
            --bg-warm: #F7F5F0;
            --card-white: #FFFFFF;
            --amber-gold: #C99B3F;
            --moss-green: #5B7A68;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto Mono", monospace;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 50px;
            --radius-img: 8px;
            --shadow-card: 0 1px 3px rgba(20, 41, 33, 0.06);
            --shadow-card-hover: 0 6px 20px rgba(20, 41, 33, 0.10);
            --shadow-medium: 0 4px 16px rgba(20, 41, 33, 0.10);
            --transition-base: 200ms ease;
            --sidebar-width: 270px;
            --section-gap: 72px;
            --section-gap-mobile: 48px;
            --content-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--charcoal);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--primary-mid);
            text-decoration: none;
            transition: color var(--transition-base), text-decoration var(--transition-base);
        }
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-mid);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary-darkest);
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
        }
        .sidebar-brand {
            height: 80px;
            display: flex;
            align-items: center;
            padding: 0 24px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            margin-right: 12px;
            flex-shrink: 0;
        }
        .sidebar-brand-text {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            display: flex;
            flex-direction: column;
        }
        .sidebar-nav a {
            display: block;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9375rem;
            font-weight: 400;
            text-decoration: none;
            transition: background 150ms ease, color 150ms ease, border 150ms ease;
            border-left: 4px solid transparent;
            letter-spacing: 0.5px;
        }
        .sidebar-nav a:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: transparent;
            text-decoration: none;
        }
        .sidebar-nav a.active {
            background: var(--primary-mid);
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            text-decoration: none;
        }
        .sidebar-footer {
            padding: 16px 24px;
            font-size: 0.6875rem;
            color: rgba(255, 255, 255, 0.5);
            flex-shrink: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ===== 移动端顶栏 ===== */
        .mobile-navbar {
            display: none;
            background: var(--primary-darkest);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1045;
            padding: 12px 16px;
        }
        .mobile-navbar .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-navbar .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--accent);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-navbar .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 1.5rem;
            padding: 4px 8px;
            cursor: pointer;
        }
        .mobile-navbar .navbar-collapse {
            background: var(--primary-darkest);
            border-radius: 0 0 12px 12px;
            padding: 8px 0;
            margin-top: 8px;
            max-height: 70vh;
            overflow-y: auto;
        }
        .mobile-navbar .navbar-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
        }
        .mobile-navbar .navbar-nav a {
            color: rgba(255, 255, 255, 0.85);
            padding: 14px 20px;
            font-size: 0.9375rem;
            text-decoration: none;
            display: block;
            border-left: 4px solid transparent;
        }
        .mobile-navbar .navbar-nav a:hover {
            color: #fff;
            text-decoration: none;
        }
        .mobile-navbar .navbar-nav a.active {
            color: #fff;
            font-weight: 600;
            border-left-color: var(--accent);
            background: var(--primary-mid);
        }

        /* ===== 主布局 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            padding: 48px;
            max-width: var(--content-max);
            width: 100%;
            margin: 0 auto;
        }

        /* ===== 通用组件 ===== */
        section {
            margin-bottom: var(--section-gap);
        }
        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-dark);
            background: var(--accent-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        .page-hero-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary-mid);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--charcoal);
            margin-bottom: 16px;
        }
        h2 {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--charcoal);
            margin-bottom: 12px;
        }
        h3 {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
            margin-bottom: 8px;
        }
        h4 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--charcoal);
        }
        p {
            margin-bottom: 12px;
        }
        .text-secondary-custom {
            color: var(--mid-gray);
        }
        .lead-custom {
            font-size: 1.0625rem;
            color: var(--mid-gray);
            line-height: 1.9;
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            font-family: var(--font-cn);
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            text-decoration: none;
            display: inline-block;
        }
        .btn-primary-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-card-hover);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--primary-mid);
            border: 1px solid var(--primary-mid);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            font-family: var(--font-cn);
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
            text-decoration: none;
            display: inline-block;
        }
        .btn-outline-custom:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }
        .btn-ghost-custom {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 0.9375rem;
            font-weight: 500;
            font-family: var(--font-cn);
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), border var(--transition-base);
            text-decoration: none;
            display: inline-block;
        }
        .btn-ghost-custom:hover {
            background: #fff;
            color: var(--primary-darkest);
            border-color: #fff;
            text-decoration: none;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: border var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }
        .card-custom:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* ===== FAQ Accordion 重写 ===== */
        .faq-accordion .accordion-item {
            border: none;
            border-bottom: 1px solid var(--light-gray);
            background: transparent;
            border-radius: 0;
        }
        .faq-accordion .accordion-header {
            margin: 0;
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--charcoal);
            font-size: 1.125rem;
            font-weight: 600;
            padding: 16px 4px;
            border: none;
            border-left: 4px solid transparent;
            box-shadow: none;
            border-radius: 0;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            border-left-color: var(--primary);
            background: transparent;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary-mid);
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.875rem;
            color: var(--primary-mid);
            transition: transform var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: rotate(0deg);
        }
        .faq-accordion .accordion-body {
            padding: 0 4px 16px 20px;
            color: var(--charcoal);
            line-height: 1.8;
            font-size: 0.9375rem;
        }

        /* ===== 表单 ===== */
        .form-control-custom {
            width: 100%;
            padding: 12px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--light-gray);
            background: #fff;
            font-size: 0.9375rem;
            font-family: var(--font-cn);
            color: var(--charcoal);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .form-control-custom:focus {
            border-color: var(--primary-mid);
            box-shadow: 0 0 0 3px var(--primary-light);
            outline: none;
        }
        .form-label-custom {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--charcoal);
            margin-bottom: 6px;
            display: block;
        }

        /* ===== 徽章 ===== */
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent-dark);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            padding: 2px 12px;
            font-weight: 500;
            display: inline-block;
        }
        .badge-primary {
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            padding: 2px 12px;
            font-weight: 500;
            display: inline-block;
        }
        .badge-amber {
            background: rgba(201, 155, 63, 0.15);
            color: var(--amber-gold);
            border-radius: var(--radius-badge);
            font-size: 0.75rem;
            padding: 2px 12px;
            font-weight: 600;
            display: inline-block;
        }

        /* ===== 页头 ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--primary-darkest) 0%, var(--primary) 100%);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(232, 98, 44, 0.15);
            pointer-events: none;
        }
        .page-hero h1 {
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .page-hero .lead-custom {
            color: rgba(255, 255, 255, 0.85);
            position: relative;
            z-index: 1;
        }
        .page-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
            position: relative;
            z-index: 1;
        }
        .page-hero .hero-meta span {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.75);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-hero .hero-meta i {
            color: var(--accent);
        }

        /* ===== 快速入口 ===== */
        .quick-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: border var(--transition-base), box-shadow var(--transition-base);
            text-decoration: none;
            color: var(--charcoal);
            height: 100%;
        }
        .quick-card:hover {
            border-color: var(--primary-mid);
            box-shadow: var(--shadow-card-hover);
            text-decoration: none;
            color: var(--charcoal);
        }
        .quick-card .quick-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }
        .quick-card .quick-icon.green {
            background: var(--primary-light);
            color: var(--primary);
        }
        .quick-card .quick-icon.orange {
            background: var(--accent-light);
            color: var(--accent-dark);
        }
        .quick-card .quick-icon.amber {
            background: rgba(201, 155, 63, 0.15);
            color: var(--amber-gold);
        }
        .quick-card h4 {
            margin-bottom: 4px;
            font-size: 1rem;
        }
        .quick-card p {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 侧边栏卡片 ===== */
        .contact-card {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-medium);
            padding: 28px 24px;
            position: sticky;
            top: 24px;
        }
        .contact-card .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 16px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--light-gray);
        }
        .contact-card .contact-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .contact-card .contact-item i {
            color: var(--accent);
            font-size: 1.125rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .contact-card .contact-item .contact-label {
            font-size: 0.8125rem;
            color: var(--mid-gray);
        }
        .contact-card .contact-item .contact-value {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--charcoal);
        }

        /* ===== 流程 ===== */
        .process-step {
            background: var(--card-white);
            border: 1px solid var(--light-gray);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            text-align: center;
            position: relative;
            height: 100%;
        }
        .process-step .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 0.9375rem;
        }
        .process-step h4 {
            margin-bottom: 4px;
            font-size: 0.9375rem;
        }
        .process-step p {
            font-size: 0.8125rem;
            color: var(--mid-gray);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 服务承诺 ===== */
        .promise-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--light-gray);
        }
        .promise-item:last-child {
            border-bottom: none;
        }
        .promise-item i {
            color: var(--primary-mid);
            font-size: 1.125rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .promise-item .promise-text h4 {
            font-size: 0.9375rem;
            margin-bottom: 2px;
        }
        .promise-item .promise-text p {
            font-size: 0.875rem;
            color: var(--mid-gray);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 分割线 ===== */
        .divider-light {
            border: none;
            border-top: 1px solid var(--light-gray);
            margin: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-darkest);
            color: #fff;
            padding: 48px 48px 32px;
            margin-top: auto;
        }
        .site-footer .footer-heading {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.875rem;
            display: inline-block;
            margin-bottom: 6px;
            transition: color var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-brand-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.875rem;
            line-height: 1.8;
        }
        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-copyright {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.8125rem;
        }
        .site-footer .footer-beian {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .mobile-navbar {
                display: flex;
                flex-wrap: wrap;
                align-items: center;
                justify-content: space-between;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }
            .main-content {
                padding: 32px 20px;
            }
            h1 {
                font-size: 1.75rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .page-hero {
                padding: 32px 24px;
            }
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .contact-card {
                position: static;
                margin-top: 24px;
            }
            .site-footer {
                padding: 32px 20px 24px;
            }
        }
        @media (max-width: 767.98px) {
            .main-content {
                padding: 24px 16px;
            }
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .page-hero {
                padding: 24px 18px;
                border-radius: 8px;
            }
            .site-footer {
                padding: 24px 16px 20px;
            }
            .site-footer .footer-divider {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .btn-primary-custom,
            .btn-outline-custom,
            .btn-ghost-custom {
                width: 100%;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .page-hero .hero-meta {
                flex-direction: column;
                gap: 8px;
            }
            .quick-card {
                padding: 16px 14px;
            }
        }