/* roulang page: index */
:root {
            --color-primary: #143C35;
            --color-primary-dark: #0D2B26;
            --color-accent: #D69E2E;
            --color-accent-dark: #B8860B;
            --color-bg: #F7F4EE;
            --color-card: #FFFFFF;
            --color-text: #1F2A25;
            --color-text-muted: #68756E;
            --color-border: #E5E1D8;
            --color-accent-soft: rgba(214, 158, 46, 0.5);
            --color-accent-glow: rgba(214, 158, 46, 0.15);
            --color-danger: #B34A3A;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --radius-icon: 12px;
            --shadow-card: 0 1px 2px rgba(20, 60, 53, 0.06);
            --shadow-card-hover: 0 12px 24px rgba(20, 60, 53, 0.14);
            --shadow-deep: 0 8px 20px rgba(20, 60, 53, 0.2);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "Inter", "Roboto", sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --section-padding: 64px 0;
            --section-padding-mobile: 40px 0;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ Header & Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition), background var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 60, 53, 0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 20px;
            border: 2px solid var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .logo-link:hover .logo-icon {
            transform: scale(1.05);
        }

        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }

        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 500;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            padding: 14px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(20, 60, 53, 0.05);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 28px;
        }

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

        .nav-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            line-height: 1;
            margin-top: 2px;
        }

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

        .search-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-icon-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            border: 1px solid var(--color-border);
            background: var(--color-card);
            transition: all var(--transition);
            cursor: pointer;
        }

        .search-icon-btn:hover {
            color: var(--color-accent-dark);
            border-color: var(--color-accent-soft);
            background: var(--color-bg);
        }

        .search-input-wrap {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            opacity: 0;
            overflow: hidden;
            transition: width 0.3s ease, opacity 0.3s ease;
            background: var(--color-card);
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-border);
        }

        .search-wrapper:hover .search-input-wrap,
        .search-wrapper:focus-within .search-input-wrap {
            width: 300px;
            opacity: 1;
        }

        .search-input {
            width: 100%;
            height: 42px;
            padding: 0 16px 0 40px;
            font-size: 14px;
            color: var(--color-text);
            background: transparent;
        }

        .search-input::placeholder {
            color: var(--color-text-muted);
        }

        .search-submit {
            position: absolute;
            left: 8px;
            top: 50%;
            transform: translateY(-50%);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            cursor: pointer;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary);
            border-bottom: 2px solid var(--color-primary);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(20, 60, 53, 0.25);
            color: var(--color-primary);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-secondary:hover {
            background: rgba(20, 60, 53, 0.06);
            color: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
        }

        .btn-white {
            background: #FFFFFF;
            color: var(--color-primary);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        .search-icon-btn:focus-visible {
            outline: 3px solid var(--color-accent-soft);
            outline-offset: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-border);
            background: var(--color-card);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger:hover {
            border-color: var(--color-accent-soft);
            background: var(--color-bg);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 1001;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--color-card);
            z-index: 1002;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: right 0.3s ease;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        }

        .drawer.open {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--color-text);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .drawer-nav .nav-link {
            align-items: flex-start;
            padding: 14px 16px;
            font-size: 16px;
            border-radius: var(--radius-btn);
        }

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

        .drawer-cta {
            margin-top: auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        /* ============ Announcement Bar ============ */
        .announce-bar {
            background: var(--color-primary);
            color: #FFF8E7;
            padding: 10px 0;
            font-size: 13px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .announce-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .announce-left {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
        }

        .announce-badge {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 11px;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .announce-text {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .announce-link {
            color: #FFF8E7;
            text-decoration: underline;
            text-underline-offset: 3px;
            flex-shrink: 0;
            font-weight: 500;
        }

        .announce-link:hover {
            color: var(--color-accent);
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0D2B26 0%, #143C35 55%, #1A4A41 100%);
            overflow: hidden;
            color: #FFF8E7;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/faa8eb1a5c717d5b.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 43, 38, 0.9) 0%, rgba(20, 60, 53, 0.6) 60%, rgba(22, 70, 63, 0.4) 100%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(214, 158, 46, 0.15);
            border: 1px solid var(--color-accent-soft);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            align-self: flex-start;
        }

        .hero-title {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.3px;
            color: #FFF8E7;
            margin: 0;
        }

        .hero-title em {
            font-style: normal;
            color: var(--color-accent);
        }

        .hero-subtitle {
            font-size: 16px;
            color: rgba(255, 248, 231, 0.85);
            line-height: 1.7;
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid rgba(214, 158, 46, 0.35);
            box-shadow: var(--shadow-deep);
            background: rgba(255, 255, 255, 0.05);
            min-height: 380px;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
            opacity: 0.9;
        }

        .hero-visual-label {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(13, 43, 38, 0.85);
            color: #FFF8E7;
            font-size: 12px;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 1px;
        }

        /* ============ Quick Entry ============ */
        .quick-entry {
            background: var(--color-card);
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border);
            position: relative;
            z-index: 5;
        }

        .quick-entry-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }

        .quick-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 16px 18px;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
            text-decoration: none;
            color: var(--color-text);
        }

        .quick-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .quick-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-icon);
            background: rgba(20, 60, 53, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-primary);
            font-size: 16px;
            font-weight: 700;
            border: 1px solid rgba(20, 60, 53, 0.12);
        }

        .quick-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
        }

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

        .section-alt {
            background: var(--color-card);
        }

        .section-deep {
            background: var(--color-primary-dark);
            color: #FFF8E7;
        }

        .section-header {
            margin-bottom: 36px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .section-header.center {
            text-align: center;
            align-items: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent-dark);
            background: var(--color-accent-glow);
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.35;
            color: var(--color-text);
            margin: 0;
        }

        .section-deep .section-title {
            color: #FFF8E7;
        }

        .section-desc {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 720px;
        }

        .section-deep .section-desc {
            color: rgba(255, 248, 231, 0.75);
        }

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

        .advantage-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition);
        }

        .advantage-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .advantage-num {
            font-family: var(--font-numeric);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-accent-dark);
            line-height: 1;
        }

        .advantage-label {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
        }

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

        /* ============ Route Network ============ */
        .route-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: start;
        }

        .route-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 320px;
            border: 1px solid var(--color-border);
        }

        .route-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        .route-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .route-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }

        .route-item:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card);
        }

        .route-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
        }

        .route-badges {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 11px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .badge-green {
            background: rgba(20, 60, 53, 0.1);
            color: var(--color-primary);
        }

        .badge-gold {
            background: var(--color-accent-glow);
            color: var(--color-accent-dark);
        }

        .route-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            white-space: nowrap;
        }

        .route-cta {
            margin-top: 16px;
        }

        .route-dynamic-list {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px dashed var(--color-border);
        }

        .route-dynamic-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        /* ============ Business Matrix ============ */
        .matrix-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 28px;
            align-items: stretch;
        }

        .matrix-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .matrix-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .matrix-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card);
        }

        .matrix-card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--color-text);
        }

        .matrix-card-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .matrix-card-link {
            margin-top: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
        }

        .matrix-card-link:hover {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .matrix-right {
            background: var(--color-primary-dark);
            border-radius: var(--radius-card);
            padding: 32px;
            color: #FFF8E7;
            display: flex;
            flex-direction: column;
            gap: 16px;
            box-shadow: var(--shadow-deep);
            border: 1px solid rgba(214, 158, 46, 0.3);
        }

        .matrix-right-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-accent);
        }

        .matrix-right-desc {
            font-size: 14px;
            color: rgba(255, 248, 231, 0.8);
            line-height: 1.7;
        }

        .matrix-steps {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 8px;
        }

        .matrix-step {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 248, 231, 0.9);
        }

        .matrix-step-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ============ Stats Dashboard ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .stat-block {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 24px 16px;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: all var(--transition);
        }

        .stat-block:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--color-accent-soft);
        }

        .stat-num {
            font-family: var(--font-numeric);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.1;
        }

        .stat-unit {
            font-size: 13px;
            color: rgba(255, 248, 231, 0.7);
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 248, 231, 0.85);
            font-weight: 500;
        }

        .stat-note {
            text-align: center;
            margin-top: 16px;
            font-size: 11px;
            color: rgba(255, 248, 231, 0.45);
            letter-spacing: 0.5px;
        }

        /* ============ Regional & City ============ */
        .regional-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 24px;
        }

        .regional-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            position: relative;
            min-height: 320px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }

        .regional-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card-hover);
        }

        .regional-card-light {
            background: var(--color-card);
            color: var(--color-text);
            padding: 28px;
        }

        .regional-card-dark {
            background: var(--color-primary-dark);
            color: #FFF8E7;
            padding: 28px;
            border-color: rgba(214, 158, 46, 0.3);
        }

        .regional-card-dark .regional-title {
            color: var(--color-accent);
        }

        .regional-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .regional-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .regional-card-dark .regional-desc {
            color: rgba(255, 248, 231, 0.75);
        }

        .regional-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .regional-card-light .regional-img-wrap {
            position: relative;
            margin: -28px -28px 20px -28px;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            overflow: hidden;
            height: 180px;
        }

        .regional-card-light .regional-img {
            position: relative;
            height: 100%;
            width: 100%;
        }

        .regional-inline-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 10px;
        }

        .regional-inline-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 248, 231, 0.85);
        }

        .regional-inline-item::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
        }

        .regional-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-dark);
            text-decoration: none;
            margin-top: 16px;
        }

        .regional-card-dark .regional-link {
            color: var(--color-accent);
        }

        .regional-link:hover {
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .enterprise-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition);
        }

        .enterprise-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .enterprise-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
        }

        .enterprise-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .enterprise-link {
            margin-top: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .enterprise-link:hover {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ============ Process Flow ============ */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 24px;
        }

        .process-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 10px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--color-accent-soft);
        }

        .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-numeric);
        }

        .process-label {
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 248, 231, 0.9);
        }

        .process-cta {
            text-align: center;
        }

        /* ============ News / CMS Section ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--color-border);
        }

        .news-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .news-card-tag {
            display: inline-flex;
            font-size: 11px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            background: var(--color-accent-glow);
            color: var(--color-accent-dark);
            align-self: flex-start;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
        }

        .news-card-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: auto;
        }

        .news-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-dark);
        }

        .news-empty {
            background: var(--color-card);
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 14px;
        }

        /* ============ Quality Assurance ============ */
        .qa-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .qa-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }

        .qa-item:hover {
            border-color: var(--color-accent-soft);
            box-shadow: var(--shadow-card);
        }

        .qa-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-icon);
            background: rgba(20, 60, 53, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 14px;
            flex-shrink: 0;
        }

        .qa-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
        }

        /* ============ Partners ============ */
        .partners-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .partner-name {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 14px 24px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
            min-width: 120px;
            transition: all var(--transition);
        }

        .partner-name:hover {
            border-color: var(--color-accent-soft);
            color: var(--color-text);
        }

        /* ============ Bottom CTA ============ */
        .cta-section {
            background: var(--color-primary-dark);
            padding: 48px 0;
            position: relative;
            overflow: hidden;
            border-top: 2px solid var(--color-accent-soft);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(214, 158, 46, 0.1);
            pointer-events: none;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-text {
            font-size: 20px;
            font-weight: 600;
            color: #FFF8E7;
            letter-spacing: 0.3px;
        }

        .cta-text span {
            color: var(--color-accent);
        }

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

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 248, 231, 0.8);
            padding: 48px 0 0;
            border-top: 1px solid rgba(214, 158, 46, 0.25);
        }

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

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

        .footer-brand .logo-main {
            color: #FFF8E7;
        }

        .footer-brand .logo-sub {
            color: rgba(255, 248, 231, 0.6);
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(255, 248, 231, 0.65);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-contact {
            font-size: 13px;
            color: rgba(255, 248, 231, 0.55);
            line-height: 1.8;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: #FFF8E7;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col-links a {
            font-size: 13px;
            color: rgba(255, 248, 231, 0.65);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 248, 231, 0.45);
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: rgba(255, 248, 231, 0.45);
            text-decoration: none;
        }

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

        /* ============ Responsive ============ */
        @media (max-width: 1200px) {
            .container {
                padding: 0 32px;
            }
            .main-nav {
                gap: 2px;
            }
            .nav-link {
                padding: 12px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .drawer-overlay {
                display: block;
            }
            .header-inner {
                height: 64px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .hero-visual {
                min-height: 260px;
            }
            .hero-visual img {
                min-height: 260px;
            }
            .hero-title {
                font-size: 30px;
            }
            .quick-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .route-layout {
                grid-template-columns: 1fr;
            }
            .route-visual {
                min-height: 240px;
            }
            .route-visual img {
                min-height: 240px;
            }
            .matrix-layout {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .regional-grid {
                grid-template-columns: 1fr;
            }
            .enterprise-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .qa-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: var(--section-padding-mobile);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                gap: 8px;
            }
            .logo-main {
                font-size: 16px;
            }
            .logo-sub {
                font-size: 10px;
            }
            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 17px;
            }
            .header-actions .btn-primary {
                display: none;
            }
            .search-wrapper:hover .search-input-wrap,
            .search-wrapper:focus-within .search-input-wrap {
                width: 220px;
            }
            .announce-text {
                font-size: 12px;
                white-space: normal;
                overflow: visible;
            }
            .hero {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .quick-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .quick-card {
                padding: 12px 14px;
                gap: 8px;
            }
            .quick-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .quick-label {
                font-size: 12px;
            }
            .section-title {
                font-size: 22px;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-num {
                font-size: 24px;
            }
            .enterprise-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .qa-grid {
                grid-template-columns: 1fr;
            }
            .route-item {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
            .route-meta {
                white-space: normal;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-buttons {
                width: 100%;
                justify-content: center;
            }
            .cta-buttons .btn {
                flex: 1;
                justify-content: center;
            }
            .regional-card {
                min-height: auto;
            }
            .regional-img, .regional-card-light .regional-img-wrap {
                height: 160px;
            }
            .btn {
                height: 48px;
                font-size: 14px;
                padding: 0 20px;
            }
            .drawer {
                width: 280px;
                padding: 20px;
            }
        }

        @media (max-width: 480px) {
            .hero-title {
                font-size: 23px;
                line-height: 1.4;
            }
            .section-title {
                font-size: 20px;
            }
            .quick-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
            .quick-card {
                padding: 10px 12px;
                border-radius: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-block {
                padding: 16px 10px;
                border-radius: 12px;
            }
            .stat-num {
                font-size: 20px;
            }
            .stat-unit {
                font-size: 11px;
            }
            .stat-label {
                font-size: 11px;
            }
            .badge {
                font-size: 10px;
                padding: 3px 8px;
            }
            .btn {
                padding: 0 16px;
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #143C35;
            --color-primary-dark: #0D2B26;
            --color-accent: #D69E2E;
            --color-accent-dark: #B8860B;
            --color-bg: #F7F4EE;
            --color-card: #FFFFFF;
            --color-text: #1F2A25;
            --color-text-muted: #68756E;
            --color-border: #E5E1D8;
            --color-accent-soft: rgba(214, 158, 46, 0.5);
            --color-accent-glow: rgba(214, 158, 46, 0.15);
            --color-danger: #B34A3A;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --radius-icon: 12px;
            --shadow-card: 0 1px 2px rgba(20, 60, 53, 0.06);
            --shadow-card-hover: 0 12px 24px rgba(20, 60, 53, 0.14);
            --shadow-deep: 0 8px 20px rgba(20, 60, 53, 0.2);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "Inter", "Roboto", sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --section-padding: 64px 0;
            --section-padding-mobile: 40px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea {
            font-family: var(--font-sans);
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 60, 53, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 20px;
            border: 2px solid var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .logo-link:hover .logo-icon {
            transform: scale(1.05);
        }
        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 500;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            padding: 14px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(20, 60, 53, 0.05);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 28px;
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            line-height: 1;
            margin-top: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-wrapper {
            display: flex;
            align-items: center;
            position: relative;
        }
        .search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
            background: var(--color-card);
            transition: all var(--transition);
        }
        .search-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }
        .search-input {
            width: 0;
            opacity: 0;
            padding: 0;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            height: 40px;
            transition: width var(--transition), opacity var(--transition), padding var(--transition);
            background: var(--color-card);
            position: absolute;
            right: 48px;
            top: 50%;
            transform: translateY(-50%);
        }
        .search-wrapper.open .search-input {
            width: 240px;
            opacity: 1;
            padding: 0 12px;
        }
        .search-submit {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            transition: background var(--transition);
            margin-left: 6px;
            display: none;
        }
        .search-wrapper.open .search-submit {
            display: block;
        }
        .search-submit:hover {
            background: var(--color-primary-dark);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 24px;
            height: 44px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary);
            border-color: var(--color-primary);
            box-shadow: 0 2px 6px rgba(214, 158, 46, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(20, 60, 53, 0.2);
            color: var(--color-primary);
            background: linear-gradient(135deg, #e5b648, #c99b1a);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
        }
        .btn-light {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 0 8px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-border);
            background: var(--color-card);
        }
        .nav-toggle span {
            display: block;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* Section base */
        .section-padding {
            padding: var(--section-padding);
        }
        .section-padding-sm {
            padding: 48px 0;
        }
        .section-padding-xs {
            padding: 32px 0;
        }
        .bg-light-warm {
            background: var(--color-bg);
        }
        .bg-white {
            background: var(--color-card);
        }
        .bg-dark {
            background: var(--color-primary-dark);
            color: #fff;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            max-width: 720px;
        }
        /* Breadcrumb */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li + li::before {
            content: '/';
            color: var(--color-border);
        }
        .breadcrumb-custom a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb-custom a:hover {
            color: var(--color-accent-dark);
        }
        /* Article hero */
        .article-hero {
            min-height: 320px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(20, 60, 53, 0.85), rgba(13, 43, 38, 0.9)), url('/assets/images/faa8eb1a5c717d5b.webp') center/cover no-repeat;
            color: #fff;
            padding: 64px 0;
        }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
        }
        .article-hero .article-summary {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 800px;
            line-height: 1.7;
        }
        /* Article content */
        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text);
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 32px 0 16px;
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-primary);
            margin: 24px 0 12px;
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: rgba(214, 158, 46, 0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            color: var(--color-text-muted);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin: 16px 0 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body figure {
            margin: 24px 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .article-body figcaption {
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 12px 16px;
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }
        /* Tags and meta */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            transition: all var(--transition);
        }
        .tag-chip:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }
        .category-chip {
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-primary);
            border-color: rgba(20, 60, 53, 0.2);
            font-weight: 600;
        }
        .author-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: var(--color-text-muted);
            padding: 16px 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .author-meta strong {
            color: var(--color-primary);
            font-weight: 600;
        }
        /* Related cards */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .related-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent-soft);
        }
        .related-card img {
            height: 160px;
            object-fit: cover;
            width: 100%;
        }
        .related-card .related-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .related-date {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
        }
        .related-card .related-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .related-card .related-title a {
            text-decoration: none;
            color: inherit;
        }
        .related-card .related-title a:hover {
            color: var(--color-accent-dark);
        }
        .related-card .related-excerpt {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
        }
        /* Back and CTA */
        .back-link-wrapper {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }
        .cta-strip {
            background: #f0ebe0;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .cta-strip .cta-text {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.5;
        }
        /* Footer */
        .site-footer {
            background: var(--color-primary-dark);
            color: #e6e1d5;
            padding: 64px 0 0;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #bdb9ae;
            margin: 16px 0;
        }
        .footer-contact {
            font-size: 14px;
            color: #bdb9ae;
            line-height: 1.8;
        }
        .footer-col-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            display: block;
            margin-bottom: 16px;
        }
        .footer-col-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col-links li {
            margin-bottom: 10px;
        }
        .footer-col-links a {
            color: #bdb9ae;
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col-links a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: #bdb9ae;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }
        .footer-bottom-links a {
            color: #bdb9ae;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }
        /* Responsive */
        @media (max-width: 1200px) {
            .container {
                padding: 0 32px;
            }
        }
        @media (max-width: 992px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                min-height: 72px;
                padding: 10px 0;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--color-bg);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px 24px;
                box-shadow: var(--shadow-deep);
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition);
                z-index: 999;
                border-bottom: 1px solid var(--color-border);
            }
            .main-nav.open {
                max-height: 500px;
            }
            .nav-link {
                flex-direction: row;
                justify-content: space-between;
                padding: 12px 16px;
                border-bottom: 1px solid var(--color-border);
                border-radius: 0;
            }
            .nav-link::after {
                display: none;
            }
            .nav-sub {
                margin-left: auto;
            }
            .nav-toggle {
                display: flex;
            }
            .search-wrapper .search-input {
                right: 0;
                width: 160px;
                opacity: 1;
                padding: 0 12px;
                position: static;
                transform: none;
            }
            .search-wrapper.open .search-input {
                width: 200px;
            }
            .search-submit {
                display: block;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-body {
                padding: 24px;
            }
            .article-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 40px 0;
                --section-padding-mobile: 40px 0;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-sm {
                padding: 32px 0;
            }
            .section-padding-xs {
                padding: 24px 0;
            }
            .container {
                padding: 0 16px;
            }
            .header-actions .btn {
                padding: 0 16px;
                font-size: 14px;
                height: 40px;
            }
            .article-hero {
                min-height: 240px;
                padding: 40px 0;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-summary {
                font-size: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-strip {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }
            .cta-strip .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .article-hero h1 {
                font-size: 22px;
            }
            .article-body {
                padding: 20px;
                border-radius: 12px;
            }
            .related-card {
                border-radius: 12px;
            }
            .search-wrapper .search-input {
                width: 120px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #143C35;
            --color-primary-dark: #0D2B26;
            --color-accent: #D69E2E;
            --color-accent-dark: #B8860B;
            --color-bg: #F7F4EE;
            --color-card: #FFFFFF;
            --color-text: #1F2A25;
            --color-text-muted: #68756E;
            --color-border: #E5E1D8;
            --color-accent-soft: rgba(214, 158, 46, 0.5);
            --color-accent-glow: rgba(214, 158, 46, 0.15);
            --color-danger: #B34A3A;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --radius-icon: 12px;
            --shadow-card: 0 1px 2px rgba(20, 60, 53, 0.06);
            --shadow-card-hover: 0 12px 24px rgba(20, 60, 53, 0.14);
            --shadow-deep: 0 8px 20px rgba(20, 60, 53, 0.2);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "Inter", "Roboto", sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --section-padding: 64px 0;
            --section-padding-mobile: 40px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ============ Header & Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 60, 53, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 20px;
            border: 2px solid var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .logo-link:hover .logo-icon {
            transform: scale(1.05);
        }
        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 500;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            padding: 14px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(20, 60, 53, 0.05);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 28px;
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            line-height: 1;
            margin-top: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-toggle {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
            transition: background var(--transition), color var(--transition);
            background: var(--color-card);
        }
        .search-toggle:hover {
            background: var(--color-primary);
            color: var(--color-accent);
        }
        .search-panel {
            display: none;
            position: absolute;
            right: 24px;
            top: 70px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-deep);
            padding: 12px;
            z-index: 1001;
            width: 300px;
        }
        .search-panel.show {
            display: flex;
            gap: 8px;
        }
        .search-panel input {
            flex: 1;
            height: 44px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 0 12px;
            color: var(--color-text);
        }
        .search-panel button {
            height: 44px;
            padding: 0 16px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-btn);
            transition: background var(--transition);
        }
        .search-panel button:hover {
            background: var(--color-primary-dark);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 24px;
            height: 44px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(20, 60, 53, 0.2);
            color: var(--color-primary-dark);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-accent-dark);
        }
        .btn-light {
            background: #fff;
            color: var(--color-primary);
            border-color: transparent;
        }
        .btn-light:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .search-toggle {
                display: none;
            }
        }
        /* ============ Category Hero ============ */
        .category-hero {
            background: linear-gradient(135deg, #0D2B26 0%, #143C35 100%);
            color: #fff;
            padding: 48px 0 48px;
            border-bottom: 4px solid var(--color-accent);
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .breadcrumb span {
            margin: 0 6px;
            color: rgba(255,255,255,0.6);
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .category-hero .lead {
            font-size: 17px;
            color: rgba(255,255,255,0.85);
            max-width: 700px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .category-hero h1 { font-size: 28px; }
            .category-hero .lead { font-size: 15px; }
        }
        /* ============ Sections General ============ */
        section {
            padding: var(--section-padding);
        }
        section.section-alt {
            background-color: #fff;
        }
        section.section-dark {
            background-color: var(--color-primary-dark);
            color: #fff;
        }
        .section-title {
            font-size: 28px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 20px;
            line-height: 1.4;
        }
        .section-subtext {
            color: var(--color-text-muted);
            font-size: 16px;
            max-width: 700px;
            margin-bottom: 32px;
        }
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }
        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent-soft);
        }
        .service-card .icon {
            width: 48px;
            height: 48px;
            background: var(--color-accent-glow);
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .service-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--color-primary);
        }
        .service-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        .badge-tag {
            display: inline-block;
            background: var(--color-accent-glow);
            color: var(--color-primary);
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            margin-right: 6px;
            margin-bottom: 6px;
        }
        .step-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .step-item {
            text-align: center;
            padding: 20px;
            background: var(--color-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            border: 2px solid var(--color-accent);
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-primary);
        }
        .step-item p {
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .coverage-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .coverage-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .coverage-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--color-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
        }
        .coverage-list li span:last-child {
            color: var(--color-text-muted);
            font-size: 14px;
        }
        .table-responsive {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .table {
            width: 100%;
            margin-bottom: 0;
            border-collapse: collapse;
        }
        .table th, .table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
            vertical-align: middle;
        }
        .table th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }
        .table tr:last-child td {
            border-bottom: none;
        }
        .table tr:hover td {
            background: rgba(20, 60, 53, 0.04);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .solution-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .solution-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .solution-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 12px;
        }
        .solution-card ul {
            padding-left: 20px;
            color: var(--color-text-muted);
            font-size: 14px;
        }
        .solution-card ul li {
            margin-bottom: 8px;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 24px;
        }
        .news-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent-soft);
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--color-primary);
        }
        .news-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        .news-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .empty-state {
            padding: 40px 20px;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 15px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px dashed var(--color-border);
        }
        .cta-section {
            background: var(--color-primary-dark);
            color: #fff;
            padding: 48px 0;
            border-top: 4px solid var(--color-accent);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-inner h2 {
            font-size: 26px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .cta-inner p {
            color: rgba(255,255,255,0.8);
            margin-bottom: 0;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
        }
        /* ============ Footer ============ */
        .site-footer {
            background: #0D2B26;
            color: #fff;
            padding: 48px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            line-height: 1.6;
            margin: 12px 0;
        }
        .footer-contact {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            line-height: 1.8;
        }
        .footer-col-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 12px;
            display: block;
        }
        .footer-col-links {
            list-style: none;
            padding: 0;
        }
        .footer-col-links li {
            margin-bottom: 8px;
        }
        .footer-col-links a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col-links a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: rgba(255,255,255,0.6);
        }
        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }
        @media (max-width: 992px) {
            .service-grid, .news-grid, .solution-grid {
                grid-template-columns: 1fr 1fr;
            }
            .step-flow {
                grid-template-columns: 1fr 1fr;
            }
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            section {
                padding: var(--section-padding-mobile);
            }
            .service-grid, .news-grid, .solution-grid, .step-flow {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-actions {
                width: 100%;
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .table-responsive {
                overflow-x: auto;
                display: block;
                white-space: nowrap;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .logo-main {
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #143C35;
            --color-primary-dark: #0D2B26;
            --color-accent: #D69E2E;
            --color-accent-dark: #B8860B;
            --color-bg: #F7F4EE;
            --color-card: #FFFFFF;
            --color-text: #1F2A25;
            --color-text-muted: #68756E;
            --color-border: #E5E1D8;
            --color-accent-soft: rgba(214, 158, 46, 0.5);
            --color-accent-glow: rgba(214, 158, 46, 0.15);
            --color-danger: #B34A3A;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --radius-icon: 12px;
            --shadow-card: 0 1px 2px rgba(20, 60, 53, 0.06);
            --shadow-card-hover: 0 12px 24px rgba(20, 60, 53, 0.14);
            --shadow-deep: 0 8px 20px rgba(20, 60, 53, 0.2);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "Inter", "Roboto", sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --section-padding: 64px 0;
            --section-padding-mobile: 40px 0;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ Header & Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition), background var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 60, 53, 0.1);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 20px;
            border: 2px solid var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .logo-link:hover .logo-icon {
            transform: scale(1.05);
        }

        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }

        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 500;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            padding: 14px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(20, 60, 53, 0.05);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 28px;
        }

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

        .nav-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            line-height: 1;
            margin-top: 2px;
        }

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

        .search-wrap {
            position: relative;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }

        .search-btn:hover {
            background: var(--color-accent-glow);
            border-color: var(--color-accent-soft);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
            min-height: 44px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
            color: var(--color-primary-dark);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-secondary:hover {
            background: var(--color-accent-glow);
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }

        .btn-white {
            background: #ffffff;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-white:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }

        /* ============ Breadcrumb & Category Hero ============ */
        .breadcrumb-section {
            background: var(--color-primary-dark);
            padding: 28px 0;
            color: #fff;
        }

        .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb a {
            color: #fff;
            font-weight: 500;
        }

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

        .breadcrumb span {
            color: var(--color-accent);
        }

        .category-hero {
            background: var(--color-bg);
            padding: 48px 0 24px;
        }

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

        .category-hero-text h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .category-hero-text p {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .category-hero-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }

        .category-hero-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* ============ Section General ============ */
        section {
            padding: var(--section-padding);
        }

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .section-header .section-sub {
            color: var(--color-text-muted);
            font-size: 15px;
        }

        .bg-white {
            background: var(--color-card);
        }

        .bg-light {
            background: var(--color-bg);
        }

        .bg-dark {
            background: var(--color-primary-dark);
            color: #fff;
        }

        .bg-dark .section-header h2 {
            color: #fff;
        }

        .bg-dark .section-header .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ============ Category Cards ============ */
        .category-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

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

        .category-card .card-tag {
            display: inline-block;
            background: var(--color-accent-glow);
            color: var(--color-accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
            align-self: flex-start;
        }

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

        .category-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .category-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
            margin-bottom: 12px;
        }

        .category-card .card-link {
            color: var(--color-accent-dark);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .category-card .card-link:hover {
            text-decoration: underline;
        }

        /* ============ Process Steps ============ */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .process-step {
            text-align: center;
            padding: 24px 16px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            position: relative;
        }

        .process-step .step-number {
            width: 44px;
            height: 44px;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 700;
            font-size: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            border: 2px solid var(--color-primary);
        }

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

        .process-step p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
        }

        /* ============ Coverage ============ */
        .coverage-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }

        .coverage-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .coverage-list li {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-badge);
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .coverage-list li::before {
            content: '•';
            color: var(--color-accent-dark);
            font-weight: 700;
        }

        .coverage-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .coverage-image img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        /* ============ Table ============ */
        .table-wrap {
            overflow-x: auto;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        th, td {
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--color-border);
        }

        th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }

        tr:hover td {
            background: rgba(214, 158, 46, 0.08);
        }

        /* ============ Solutions ============ */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

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

        .solution-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .solution-card ul {
            list-style: none;
            padding: 0;
        }

        .solution-card ul li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--color-border);
            font-size: 14px;
            color: var(--color-text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .solution-card ul li::before {
            content: '✓';
            color: var(--color-accent-dark);
            font-weight: 700;
        }

        /* ============ Post Cards ============ */
        .post-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .post-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .post-card .post-card-link {
            display: block;
            padding: 20px;
        }

        .post-category {
            display: inline-block;
            background: var(--color-accent-glow);
            color: var(--color-accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            margin-bottom: 10px;
        }

        .post-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .post-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .post-card time {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .view-more {
            text-align: center;
            margin-top: 24px;
        }

        .empty-state {
            background: var(--color-card);
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            color: var(--color-text-muted);
        }

        /* ============ CTA Section ============ */
        .cta-section {
            background: var(--color-primary-dark);
            border-top: 3px solid var(--color-accent);
            padding: 40px 0;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .cta-text {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
        }

        .cta-buttons {
            display: flex;
            gap: 12px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }

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

        .footer-brand .logo-link {
            margin-bottom: 16px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 12px;
        }

        .footer-contact {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            display: block;
        }

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

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

        .footer-col-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* ============ Mobile Menu ============ */
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: transparent;
        }

        .mobile-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            transition: all var(--transition);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border);
            z-index: 999;
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-card-hover);
        }

        .mobile-menu .nav-link {
            justify-content: flex-start;
            align-items: flex-start;
            text-align: left;
            padding: 12px 8px;
            border-bottom: 1px solid var(--color-border);
            width: 100%;
        }

        .mobile-menu .btn {
            margin-top: 12px;
            width: 100%;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1200px) {
            .container {
                padding: 0 32px;
            }
        }

        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .mobile-menu.open {
                display: flex;
            }

            .category-hero-inner {
                grid-template-columns: 1fr;
            }

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

            .category-card-grid,
            .post-cards {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

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

            .header-inner {
                height: 64px;
            }

            .category-card-grid,
            .post-cards,
            .process-steps,
            .solution-grid {
                grid-template-columns: 1fr;
            }

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

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

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

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

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

            .cta-buttons {
                width: 100%;
                justify-content: center;
                flex-wrap: wrap;
            }
        }

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

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

            .btn {
                width: 100%;
                justify-content: center;
            }

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

            .process-step {
                padding: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #143C35;
            --color-primary-dark: #0D2B26;
            --color-accent: #D69E2E;
            --color-accent-dark: #B8860B;
            --color-bg: #F7F4EE;
            --color-card: #FFFFFF;
            --color-text: #1F2A25;
            --color-text-muted: #68756E;
            --color-border: #E5E1D8;
            --color-accent-soft: rgba(214, 158, 46, 0.5);
            --color-accent-glow: rgba(214, 158, 46, 0.15);
            --color-danger: #B34A3A;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --radius-icon: 12px;
            --shadow-card: 0 1px 2px rgba(20, 60, 53, 0.06);
            --shadow-card-hover: 0 12px 24px rgba(20, 60, 53, 0.14);
            --shadow-deep: 0 8px 20px rgba(20, 60, 53, 0.2);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "Inter", "Roboto", sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --section-padding: 64px 0;
            --section-padding-mobile: 40px 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: var(--font-sans);
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ============ Header & Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247, 244, 238, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(20, 60, 53, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 20px;
            border: 2px solid var(--color-primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .logo-link:hover .logo-icon {
            transform: scale(1.05);
        }
        .logo-text-group {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 500;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            padding: 14px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(20, 60, 53, 0.05);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 28px;
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            line-height: 1;
            margin-top: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-wrapper {
            position: relative;
            display: flex;
            align-items: center;
        }
        .search-toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--color-primary);
            background: transparent;
            transition: background var(--transition), color var(--transition);
        }
        .search-toggle:hover {
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-accent-dark);
        }
        .search-input-group {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            overflow: hidden;
            transition: width 0.3s ease;
            display: flex;
            align-items: center;
            background: #fff;
            border-radius: 8px;
            border: 1px solid var(--color-border);
        }
        .search-wrapper.open .search-input-group {
            width: 260px;
            padding: 4px 8px;
        }
        .search-input-group input {
            flex: 1;
            height: 32px;
            padding: 0 8px;
            font-size: 14px;
            color: var(--color-text);
            background: transparent;
        }
        .search-input-group button {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            border-radius: 6px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            border: 2px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            border-color: var(--color-primary);
            box-shadow: 0 2px 6px rgba(20, 60, 53, 0.1);
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(20, 60, 53, 0.2);
            color: var(--color-primary-dark);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
        }
        .btn-light {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            border-color: var(--color-accent);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: transparent;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        /* ============ Breadcrumb & Category Hero ============ */
        .category-hero {
            background: linear-gradient(135deg, rgba(20,60,53,0.03), rgba(214,158,46,0.05));
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0 40px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-dark);
        }
        .breadcrumb .sep {
            color: var(--color-border);
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .category-hero .lead {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 860px;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 28px;
            }
        }
        /* ============ Section Base ============ */
        .section {
            padding: var(--section-padding);
            background: var(--color-bg);
        }
        .section-white {
            background: #fff;
        }
        .section-tinted {
            background: rgba(20, 60, 53, 0.03);
        }
        .section-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: 32px;
        }
        /* ============ Service Cards ============ */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent-soft);
        }
        .service-card .icon-box {
            width: 48px;
            height: 48px;
            background: rgba(20, 60, 53, 0.06);
            border-radius: var(--radius-icon);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--color-primary);
            font-size: 22px;
            font-weight: 700;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex: 1;
        }
        .service-card .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-badge);
            background: rgba(20, 60, 53, 0.08);
            color: var(--color-primary);
        }
        .badge-accent {
            background: rgba(214, 158, 46, 0.15);
            color: var(--color-accent-dark);
        }
        .service-card .link-arrow {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
            margin-top: auto;
        }
        .service-card .link-arrow:hover {
            gap: 8px;
            color: var(--color-primary);
        }
        @media (max-width: 992px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }
        /* ============ Process Steps ============ */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }
        .process-step {
            flex: 1;
            min-width: 160px;
            text-align: center;
            position: relative;
            padding: 0 8px;
        }
        .process-step .step-num {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            font-weight: 700;
            font-size: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            border: 2px solid var(--color-primary);
        }
        .process-step .step-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
        }
        .process-step .step-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .process-steps {
                flex-direction: column;
                gap: 24px;
            }
        }
        /* ============ Coverage Grid ============ */
        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .coverage-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
            text-align: center;
            font-weight: 500;
            color: var(--color-primary);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .coverage-item:hover {
            border-color: var(--color-accent-soft);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .coverage-grid {
                grid-template-columns: 1fr;
            }
        }
        /* ============ Table ============ */
        .standards-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }
        .standards-table th,
        .standards-table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
        }
        .standards-table th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            text-align: left;
        }
        .standards-table tr:last-child td {
            border-bottom: none;
        }
        .standards-table tr:hover td {
            background: rgba(20, 60, 53, 0.03);
        }
        @media (max-width: 768px) {
            .standards-table {
                display: block;
                overflow-x: auto;
            }
        }
        /* ============ Solution Cards ============ */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .solution-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .solution-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent-soft);
        }
        .solution-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .solution-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .solution-card ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--color-text-muted);
            border-bottom: 1px dashed var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .solution-card ul li::before {
            content: '▪';
            color: var(--color-accent-dark);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .solution-grid {
                grid-template-columns: 1fr;
            }
        }
        /* ============ News List ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-accent-soft);
        }
        .news-card-link {
            padding: 20px;
            flex: 1;
        }
        .news-card-category {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-accent-dark);
            background: rgba(214, 158, 46, 0.12);
            padding: 2px 8px;
            border-radius: var(--radius-badge);
            margin-bottom: 8px;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        .news-card time {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .empty-state {
            background: #fff;
            border: 1px dashed var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 15px;
        }
        @media (max-width: 992px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }
        /* ============ CTA Strip ============ */
        .cta-strip {
            background: var(--color-primary-dark);
            padding: 40px 0;
            border-top: 2px solid var(--color-accent);
        }
        .cta-strip .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .cta-strip .text {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
        }
        .cta-strip .actions {
            display: flex;
            gap: 12px;
        }
        @media (max-width: 768px) {
            .cta-strip .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-strip .actions {
                width: 100%;
            }
            .cta-strip .actions .btn {
                flex: 1;
            }
        }
        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.85);
            padding: 48px 0 24px;
            border-top: 2px solid var(--color-accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo-link {
            margin-bottom: 12px;
        }
        .footer-brand .logo-main {
            color: #fff;
        }
        .footer-brand .logo-sub {
            color: rgba(255,255,255,0.6);
        }
        .footer-brand-desc {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            max-width: 360px;
            margin-bottom: 12px;
        }
        .footer-contact {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            line-height: 1.8;
        }
        .footer-col-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 16px;
            display: block;
        }
        .footer-col-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col-links li {
            margin-bottom: 10px;
        }
        .footer-col-links a {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            transition: color var(--transition);
        }
        .footer-col-links a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        /* ============ Mobile Navigation ============ */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 24px rgba(20,60,53,0.1);
                padding: 16px 24px;
                display: none;
                z-index: 999;
            }
            .mobile-menu.open {
                display: block;
            }
            .mobile-menu .nav-link {
                display: flex;
                width: 100%;
                text-align: left;
                padding: 12px 0;
                border-bottom: 1px solid var(--color-border);
                flex-direction: row;
                align-items: center;
                gap: 8px;
            }
            .mobile-menu .nav-link .nav-sub {
                margin-left: 8px;
                margin-top: 0;
            }
            .mobile-menu .nav-link::after {
                display: none;
            }
            .mobile-menu .btn {
                margin-top: 16px;
                width: 100%;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-padding-mobile);
            }
            .category-hero {
                padding: 24px 0 32px;
            }
        }