/* roulang page: index */
:root {
            --primary: #1E3A8A;
            --primary-dark: #0F2942;
            --primary-hover: #172554;
            --secondary: #0284C7;
            --secondary-hover: #0369A1;
            --accent: #D97706;
            --accent-light: #FEF3C7;
            --dark-surface: #0F172A;
            --dark-card: #1E293B;
            --light-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-main: #0F172A;
            --text-muted: #475569;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --border-light: #F1F5F9;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
            --shadow-md: 0 10px 25px -5px rgba(15, 41, 66, 0.05), 0 8px 10px -6px rgba(15, 41, 66, 0.03);
            --shadow-lg: 0 20px 30px -10px rgba(15, 41, 66, 0.09);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --container-max: 1240px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* Typography Utilities */
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 3rem auto;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: #E0F2FE;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            margin-bottom: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.125rem;
            line-height: 1.3;
            color: var(--text-main);
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .section-intro {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Common Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            font-size: 1rem;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(30, 58, 138, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 58, 138, 0.35);
        }

        .btn-secondary {
            background-color: var(--secondary);
            color: #FFFFFF;
        }

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

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

        .btn-outline:hover {
            background-color: #EFF6FF;
            color: var(--primary-hover);
        }

        .btn-accent {
            background-color: var(--accent);
            color: #FFFFFF;
        }

        .btn-accent:hover {
            background-color: #B45309;
        }

        /* Card Styles */
        .card {
            background-color: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #BAE6FD;
        }

        /* 1. Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: #FFFFFF;
            box-shadow: var(--shadow-sm);
        }

        .header-topbar {
            background-color: var(--primary-dark);
            color: #E2E8F0;
            font-size: 0.8125rem;
            padding: 0.45rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .topbar-info {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .topbar-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .topbar-status {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
        }

        .header-main {
            padding: 0.85rem 0;
            background-color: #FFFFFF;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .brand-logo svg {
            width: 34px;
            height: 34px;
            fill: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--secondary);
        }

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

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

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-main);
            cursor: pointer;
        }

        /* 2. Hero Section (#hero) */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 58, 138, 0.85) 100%), url('/assets/images/7dc4e13f9ec67d22.webp') center/cover no-repeat;
            color: #FFFFFF;
            padding: 5rem 0 5.5rem 0;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(2, 132, 199, 0.25);
            border: 1px solid rgba(56, 189, 248, 0.4);
            color: #7DD3FC;
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
        }

        .hero-title {
            font-size: 2.65rem;
            font-weight: 800;
            line-height: 1.25;
            color: #FFFFFF;
            margin-bottom: 1.25rem;
        }

        .hero-subtitle {
            font-size: 1.075rem;
            line-height: 1.75;
            color: #CBD5E1;
            margin-bottom: 2rem;
        }

        .hero-badges-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-bottom: 2.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 1.5rem;
        }

        .hero-badge-item {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .hero-badge-icon {
            width: 24px;
            height: 24px;
            color: #38BDF8;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .hero-badge-title {
            font-size: 0.925rem;
            font-weight: 700;
            color: #F8FAFC;
        }

        .hero-badge-desc {
            font-size: 0.775rem;
            color: #94A3B8;
            margin-top: 2px;
        }

        /* Hero Booking Card */
        .hero-form-card {
            background-color: #FFFFFF;
            color: var(--text-main);
            padding: 2.25rem;
            border-radius: var(--radius-xl);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
            position: relative;
        }

        .form-card-title {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 0.35rem;
        }

        .form-card-sub {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.15rem;
        }

        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.4rem;
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 0.925rem;
            background-color: #F8FAFC;
            transition: var(--transition);
        }

        .form-control:focus {
            background-color: #FFFFFF;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        /* 3. Countdown & Capacity Bar (#capacity-status) */
        .capacity-section {
            background-color: #EFF6FF;
            border-bottom: 1px solid #DBEAFE;
            padding: 1.25rem 0;
        }

        .capacity-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .capacity-info {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .capacity-pill {
            background-color: #DC2626;
            color: #FFFFFF;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.65rem;
            border-radius: 4px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.65; }
        }

        .capacity-text {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary-dark);
        }

        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .timer-box {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
        }

        /* Section Global Padding */
        .section-py {
            padding: 5rem 0;
        }

        .bg-white {
            background-color: #FFFFFF;
        }

        .bg-slate {
            background-color: #F8FAFC;
        }

        /* 4. Inspection System (#about-service) */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .about-image-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .about-image-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }

        .about-image-wrap:hover img {
            transform: scale(1.03);
        }

        .about-floating-badge {
            position: absolute;
            bottom: 1.5rem;
            right: 1.5rem;
            background: rgba(15, 23, 42, 0.9);
            color: #FFFFFF;
            padding: 1rem 1.25rem;
            border-radius: var(--radius-lg);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .floating-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: #38BDF8;
            line-height: 1;
        }

        .floating-label {
            font-size: 0.8rem;
            color: #CBD5E1;
            margin-top: 0.25rem;
        }

        .check-list {
            list-style: none;
            margin: 1.75rem 0 2rem 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
        }

        .check-icon {
            width: 20px;
            height: 20px;
            color: var(--secondary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .check-content strong {
            display: block;
            font-size: 1.025rem;
            color: var(--text-main);
            margin-bottom: 0.2rem;
        }

        .check-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 5. Advantages Grid (#advantages) */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .adv-card {
            padding: 2.25rem 1.75rem;
            background-color: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .adv-card:hover {
            transform: translateY(-5px);
            border-color: #7DD3FC;
            box-shadow: var(--shadow-md);
        }

        .adv-icon-box {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
        }

        .adv-icon-box svg {
            width: 28px;
            height: 28px;
        }

        .adv-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.65rem;
        }

        .adv-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 6. Projects Section (#projects) */
        .project-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .project-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .project-img-box {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

        .project-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .project-card:hover .project-img-box img {
            transform: scale(1.05);
        }

        .project-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: rgba(15, 23, 42, 0.85);
            color: #FFFFFF;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 4px;
            backdrop-filter: blur(4px);
        }

        .project-body {
            padding: 1.75rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .project-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
        }

        .project-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .project-specs {
            background-color: #F8FAFC;
            border-radius: var(--radius-md);
            padding: 0.85rem 1rem;
            margin-bottom: 1.5rem;
            font-size: 0.825rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            border: 1px dashed var(--border-color);
        }

        .spec-item {
            display: flex;
            justify-content: space-between;
        }

        .spec-label {
            color: var(--text-light);
        }

        .spec-val {
            font-weight: 600;
            color: var(--text-main);
        }

        .project-btn {
            margin-top: auto;
            width: 100%;
        }

        /* 7. Workshop Deep Section (#workshop) */
        .workshop-section {
            background: linear-gradient(rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.97)), url('/assets/images/999eae7c9317db53.webp') center/cover fixed;
            color: #FFFFFF;
            padding: 6rem 0;
        }

        .workshop-header .section-title {
            color: #FFFFFF;
        }

        .workshop-header .section-intro {
            color: #94A3B8;
        }

        .workshop-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.75rem;
        }

        .workshop-item {
            background: rgba(30, 41, 59, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: var(--transition);
        }

        .workshop-item:hover {
            background: rgba(30, 41, 59, 0.9);
            border-color: #38BDF8;
            transform: translateY(-4px);
        }

        .workshop-code {
            font-family: monospace;
            font-size: 0.8rem;
            color: #38BDF8;
            margin-bottom: 0.75rem;
            display: block;
        }

        .workshop-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: #F8FAFC;
            margin-bottom: 0.65rem;
        }

        .workshop-detail {
            font-size: 0.85rem;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 8. Case Study Section (#case-study) */
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 2.5rem;
        }

        .case-card {
            display: grid;
            grid-template-columns: 1fr 1.25fr;
            background-color: #FFFFFF;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .case-card:nth-child(even) {
            grid-template-columns: 1.25fr 1fr;
        }

        .case-card:nth-child(even) .case-img-wrap {
            order: 2;
        }

        .case-card:nth-child(even) .case-content {
            order: 1;
        }

        .case-img-wrap {
            height: 100%;
            min-height: 320px;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .case-car-tag {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--secondary);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .case-heading {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 1.25rem;
        }

        .case-chain {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }

        .chain-step {
            display: grid;
            grid-template-columns: 80px 1fr;
            font-size: 0.875rem;
            line-height: 1.5;
        }

        .chain-step .step-title {
            color: var(--text-light);
            font-weight: 600;
        }

        .chain-step .step-desc {
            color: var(--text-muted);
        }

        /* 9. Workflow Section (#workflow) */
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.25rem;
            position: relative;
        }

        .step-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #FFFFFF;
            font-size: 0.95rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem auto;
        }

        .step-name {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
        }

        .step-intro {
            font-size: 0.825rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* 10. Metrics Bar (#metrics) */
        .metrics-section {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            padding: 4rem 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .metric-card {
            padding: 1rem;
        }

        .metric-value {
            font-size: 2.75rem;
            font-weight: 800;
            color: #38BDF8;
            line-height: 1.1;
            margin-bottom: 0.5rem;
            font-variant-numeric: tabular-nums;
        }

        .metric-label {
            font-size: 1rem;
            font-weight: 700;
            color: #F8FAFC;
            margin-bottom: 0.35rem;
        }

        .metric-sub {
            font-size: 0.8rem;
            color: #94A3B8;
        }

        /* 11. Testimonials Section (#testimonials) */
        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .testi-card {
            padding: 2rem;
            background-color: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testi-rating {
            color: var(--accent);
            display: flex;
            gap: 0.25rem;
            margin-bottom: 0.75rem;
            font-size: 1rem;
        }

        .testi-text {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 1.5rem;
        }

        .testi-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-light);
            padding-top: 1rem;
        }

        .testi-user {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .testi-car {
            font-size: 0.775rem;
            color: var(--text-light);
        }

        .testi-tag {
            font-size: 0.75rem;
            background-color: #F1F5F9;
            color: var(--secondary);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 12. News / Self-Diagnosis Section (#news) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .news-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .news-thumb {
            height: 190px;
            overflow: hidden;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-body {
            padding: 1.5rem;
        }

        .news-date {
            font-size: 0.775rem;
            color: var(--text-light);
            margin-bottom: 0.4rem;
        }

        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.65rem;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .news-toggle-btn {
            background: none;
            border: none;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.875rem;
            cursor: pointer;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .news-toggle-btn:hover {
            color: var(--primary);
        }

        .news-detail-box {
            display: none;
            margin-top: 1rem;
            padding: 0.85rem;
            background-color: #F8FAFC;
            border-radius: var(--radius-md);
            font-size: 0.825rem;
            color: var(--text-muted);
            border-left: 3px solid var(--secondary);
            line-height: 1.6;
        }

        .news-detail-box.show {
            display: block;
        }

        /* 13. FAQ Accordion (#faq) */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

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

        .faq-item.active {
            border-color: #BAE6FD;
            background-color: #F0F9FF;
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--primary-dark);
            user-select: none;
        }

        .faq-q-left {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .faq-num {
            font-family: monospace;
            font-size: 0.85rem;
            color: var(--secondary);
            background: #E0F2FE;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            color: var(--text-light);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background-color: #FFFFFF;
        }

        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.25rem 3.45rem;
            max-height: 300px;
        }

        .faq-answer p {
            font-size: 0.925rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 14. Guarantee Strip (#guarantee) */
        .guarantee-bar {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 2.5rem 0;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .guarantee-box {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: #EFF6FF;
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .guarantee-icon svg {
            width: 24px;
            height: 24px;
        }

        .guarantee-title {
            font-size: 0.975rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.2rem;
        }

        .guarantee-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 15. Contact & Booking (#contact) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: flex-start;
        }

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .contact-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: #EFF6FF;
            color: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-icon svg {
            width: 20px;
            height: 20px;
        }

        .contact-text strong {
            display: block;
            font-size: 1rem;
            color: var(--primary-dark);
            margin-bottom: 0.25rem;
        }

        .contact-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .contact-form-panel {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 2.25rem;
            box-shadow: var(--shadow-md);
        }

        /* Sticky Bottom Bar */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-color);
            padding: 0.75rem 0;
            z-index: 990;
            box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.05);
            display: none;
        }

        .sticky-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .sticky-left-info {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .sticky-brand {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--primary);
        }

        .sticky-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .sticky-btn-group {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        /* 16. Footer */
        .site-footer {
            background-color: var(--dark-surface);
            color: #94A3B8;
            padding: 4.5rem 0 2rem 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }

        .footer-brand-title {
            font-size: 1.3rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-brand-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: #94A3B8;
            margin-bottom: 1.5rem;
        }

        .footer-heading {
            font-size: 1.05rem;
            font-weight: 700;
            color: #F8FAFC;
            margin-bottom: 1.25rem;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.65rem;
        }

        .footer-links a:hover {
            color: #38BDF8;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.825rem;
        }

        .footer-bottom-links {
            display: flex;
            gap: 1.5rem;
        }

        /* Toast Alert */
        .toast-notice {
            position: fixed;
            top: 2rem;
            right: 2rem;
            background-color: #10B981;
            color: #FFFFFF;
            padding: 1rem 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            font-weight: 600;
            z-index: 2000;
            transform: translateY(-100px);
            opacity: 0;
            transition: all 0.4s ease;
        }

        .toast-notice.show {
            transform: translateY(0);
            opacity: 1;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .hero-title {
                font-size: 2.25rem;
            }
            .adv-grid, .project-grid, .news-grid, .testi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workshop-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .case-card, .case-card:nth-child(even) {
                grid-template-columns: 1fr;
            }
            .case-card:nth-child(even) .case-img-wrap {
                order: 1;
            }
            .case-card:nth-child(even) .case-content {
                order: 2;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-topbar {
                display: none;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-color);
            }
            .main-nav.show {
                display: flex;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-badges-row {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            .adv-grid, .project-grid, .news-grid, .testi-grid, .metrics-grid {
                grid-template-columns: 1fr;
            }
            .workshop-grid {
                grid-template-columns: 1fr;
            }
            .workflow-steps {
                grid-template-columns: 1fr;
            }
            .about-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .sticky-cta-bar {
                display: block;
            }
            body {
                padding-bottom: 60px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }