:root {
            /* 配色方案B：活力连接型 - 活力橙 + 天蓝 */
            --primary: #F97316;
            --primary-dark: #EA580C;
            --primary-light: #FB923C;
            --accent: #0EA5E9;
            --accent-dark: #0284C7;
            --accent-light: #38BDF8;
            --bg: #FFFFFF;
            --bg-secondary: #F4F4F5;
            --surface: #FFFFFF;
            --surface-light: #FAFAFA;
            --surface-dark: #F4F4F5;
            --text: #18181B;
            --text-secondary: #71717A;
            --text-muted: #A1A1AA;
            --border: #E4E4E7;
            --gradient: linear-gradient(135deg, #F97316 0%, #FB923C 100%);
            --gradient-accent: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
            --gradient-subtle: linear-gradient(135deg, rgba(249, 115, 22, 0.03) 0%, rgba(14, 165, 233, 0.03) 100%);

            /* Hero Dark Theme */
            --hero-bg: #09090B;
            --hero-surface: #18181B;
            --hero-text: #FAFAFA;
            --hero-text-secondary: #A1A1AA;
            --hero-border: rgba(255, 255, 255, 0.08);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: all 0.3s ease;
            background: transparent;
            border-bottom: none;
        }

        .nav.scrolled {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(20px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--hero-text);
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: auto;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-icon svg {
            height: 36px;
            width: auto;
        }

        .logo-text {
            display: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 32px;
            flex: 1;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .nav-link {
            color: var(--hero-text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.2s ease;
            border: none;
        }

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

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

        .btn-secondary {
            background: transparent;
            color: var(--hero-text);
            border: 1px solid var(--hero-border);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary-light);
        }

        .btn-ghost {
            background: transparent;
            color: var(--hero-text-secondary);
            padding: 8px 16px;
        }

        .btn-ghost:hover {
            color: var(--hero-text);
        }

        /* Language Switcher */
        .lang-switcher {
            position: relative;
            margin-right: 8px;
            z-index: 1001;
        }

        .lang-btn {
            display: flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1px solid var(--hero-border);
            color: var(--hero-text-secondary);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 13px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .lang-btn:hover {
            border-color: var(--primary);
            color: var(--hero-text);
        }

        .lang-dropdown {
            display: none;
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: var(--hero-surface);
            border: 1px solid var(--hero-border);
            border-radius: 8px;
            overflow: hidden;
            min-width: 120px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .lang-dropdown.show {
            display: block;
        }

        .lang-option {
            display: block;
            width: 100%;
            padding: 10px 16px;
            background: transparent;
            border: none;
            color: var(--hero-text-secondary);
            font-size: 14px;
            text-align: left;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .lang-option:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--hero-text);
        }

        .lang-option.active {
            color: var(--primary);
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 9999;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .modal.show {
            display: flex;
        }

        .modal-content {
            background: var(--bg);
            border-radius: 16px;
            padding: 32px;
            width: 100%;
            max-width: 600px;
            max-height: 95vh;
            overflow-y: auto;
            position: relative;
            text-align: center;
        }

        .modal-content h3 {
            margin: 0 0 8px;
            font-size: 24px;
            color: var(--text);
        }

        .modal-subtitle {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .modal-content iframe {
            width: 100%;
            height: 650px;
            border: none;
            border-radius: 8px;
            background: #fafafa;
        }

        .modal-error {
            padding: 40px 20px;
        }

        .modal-error p {
            margin-bottom: 20px;
            color: var(--text-secondary);
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: none;
            border: none;
            font-size: 28px;
            cursor: pointer;
            color: var(--text-secondary);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }

        .modal-close:hover {
            background: var(--bg-secondary);
            color: var(--text);
        }

        /* Contact Form Modal Styles */
        .contact-modal-content {
            max-width: 520px;
            text-align: left;
        }

        .contact-modal-content h3 {
            text-align: center;
            margin-bottom: 4px;
        }

        .contact-modal-content .modal-subtitle {
            text-align: center;
            margin-bottom: 24px;
        }

        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-row {
            display: flex;
            gap: 16px;
        }

        .form-group {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group-full {
            flex: 1 1 100%;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
        }

        .form-group .required {
            color: #EF4444;
        }

        .form-group input,
        .form-group select {
            padding: 12px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            font-family: inherit;
            color: var(--text);
            background: var(--bg);
            transition: border-color 0.2s, box-shadow 0.2s;
            width: 100%;
            box-sizing: border-box;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
        }

        .form-group input::placeholder {
            color: #9CA3AF;
        }

        .form-group input.error,
        .form-group select.error {
            border-color: #EF4444;
        }

        .form-group input.error:focus,
        .form-group select.error:focus {
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
        }

        .error-tip {
            font-size: 12px;
            color: #EF4444;
            display: none;
        }

        .form-group input.error + .error-tip,
        .form-group select.error + .error-tip {
            display: block;
        }

        .contact-submit-btn {
            margin-top: 8px;
            width: 100%;
            padding: 14px;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .contact-submit-btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }

        .loading-spinner {
            width: 18px;
            height: 18px;
            border: 2px solid rgba(255,255,255,0.3);
            border-top-color: #fff;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .form-error {
            padding: 12px;
            background: #FEF2F2;
            border: 1px solid #FECACA;
            border-radius: 8px;
            color: #DC2626;
            font-size: 14px;
            text-align: center;
        }

        .contact-success {
            text-align: center;
            padding: 40px 20px;
        }

        .success-icon {
            color: #22C55E;
            margin-bottom: 16px;
        }

        .contact-success h4 {
            font-size: 20px;
            color: var(--text);
            margin: 0 0 8px;
        }

        .contact-success p {
            color: var(--text-secondary);
            margin: 0;
        }

        /* Mobile Responsive */
        @media (max-width: 480px) {
            .contact-modal-content {
                padding: 24px 16px;
                max-height: 90vh;
            }

            .form-row {
                flex-direction: column;
                gap: 12px;
            }

            .form-group {
                flex: none;
            }
        }

        /* WeChat Modal Styles */
        .wechat-modal-content {
            max-width: 360px;
            padding: 40px 32px;
        }

        .wechat-qr-wrapper {
            background: white;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            display: inline-block;
        }

        .wechat-qr {
            width: 200px;
            height: 200px;
            display: block;
        }

        .wechat-tip {
            margin-top: 20px;
            color: var(--text-secondary);
            font-size: 16px;
        }

        /* Phone Modal Styles */
        .phone-modal-content {
            max-width: 360px;
            padding: 40px 32px;
        }

        .phone-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: var(--bg-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .phone-number {
            font-size: 28px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }

        .phone-tip {
            color: var(--text-secondary);
            font-size: 14px;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--hero-text);
            cursor: pointer;
            padding: 8px;
            margin-left: auto;
            margin-right: 0;
        }

        /* Hero Section - Dark Theme */
        .hero {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            padding: 120px 24px 0;
            background: var(--hero-bg);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse 80% 50% at 50% 0%, rgba(249, 115, 22, 0.12), transparent),
                radial-gradient(ellipse 60% 40% at 80% 20%, rgba(14, 165, 233, 0.08), transparent);
        }

        .hero-mesh {
            position: absolute;
            inset: 0;
            background-image:
                radial-gradient(circle at 30% 70%, rgba(249, 115, 22, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(14, 165, 233, 0.04) 0%, transparent 40%);
            animation: meshMove 20s ease-in-out infinite;
        }

        @keyframes meshMove {
            0%, 100% { transform: scale(1) rotate(0deg); }
            50% { transform: scale(1.05) rotate(1deg); }
        }

        .hero-grid {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
            background-size: 80px 80px;
            mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent);
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            position: relative;
            z-index: 2;
            padding-bottom: 60px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(249, 115, 22, 0.12);
            border: 1px solid rgba(249, 115, 22, 0.25);
            border-radius: 100px;
            font-size: 13px;
            color: var(--primary-light);
            margin-bottom: 68px;
            font-weight: 500;
        }

        .hero-badge-dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .hero h1 {
            font-size: clamp(24px, 4vw + 12px, 72px);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
            color: var(--hero-text);
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, #F97316 0%, #0EA5E9 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--hero-text-secondary);
            margin-bottom: 40px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: nowrap;
            max-width: 100%;
        }

        .hero-actions .btn {
            flex-shrink: 0;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 64px;
            margin-top: 80px;
            padding-top: 60px;
            border-top: 1px solid var(--hero-border);
        }

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

        .stat-value {
            font-size: 40px;
            font-weight: 700;
            color: var(--hero-text);
            line-height: 1.2;
        }

        .stat-value span {
            background: linear-gradient(135deg, #F97316 0%, #0EA5E9 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: 14px;
            color: var(--hero-text-secondary);
            margin-top: 4px;
        }

        /* Hero Image Section */
        .hero-image-section {
            width: 100%;
            max-width: 1200px;
            position: relative;
            z-index: 2;
            margin-top: auto;
        }

        .hero-image-wrapper {
            position: relative;
            width: 100%;
            background: linear-gradient(180deg, transparent 0%, rgba(26, 26, 26, 0.5) 20%, rgba(26, 26, 26, 0.9) 100%);
            padding-top: 60px;
            overflow: hidden;
        }

        .hero-image {
            width: 100%;
            height: auto;
            border-radius: 16px 16px 0 0;
            background: linear-gradient(135deg, rgba(249, 115, 22, 0.08) 0%, rgba(9, 9, 11, 0.9) 100%);
            border: 1px solid var(--hero-border);
            border-bottom: none;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 400px;
            position: relative;
            overflow: hidden;
        }

        @media (max-width: 768px) {
            .hero-image {
                overflow-x: auto;
                overflow-y: visible;
                -webkit-overflow-scrolling: touch;
            }
        }

        .dashboard-mockup {
            width: 90%;
            max-width: 1000px;
            background: #1A1A1A;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .dashboard-header {
            display: flex;
            gap: 8px;
            margin-bottom: 20px;
        }

        .dashboard-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .dashboard-dot:nth-child(1) { background: #FF4D4F; }
        .dashboard-dot:nth-child(2) { background: #FAAD14; }
        .dashboard-dot:nth-child(3) { background: #52C41A; }

        .dashboard-content {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
        }

        .dashboard-sidebar {
            background: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            padding: 16px;
            height: 280px;
        }

        .sidebar-item {
            padding: 10px 12px;
            border-radius: 6px;
            margin-bottom: 4px;
            background: rgba(249, 115, 22, 0.15);
            color: var(--primary-light);
            font-size: 13px;
        }

        .sidebar-item:nth-child(2),
        .sidebar-item:nth-child(3),
        .sidebar-item:nth-child(4) {
            background: transparent;
            color: var(--hero-text-secondary);
        }

        .dashboard-main {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .dashboard-card {
            background: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            padding: 16px;
        }

        .dashboard-card-label {
            font-size: 11px;
            color: var(--hero-text-secondary);
            margin-bottom: 8px;
        }

        .dashboard-card-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--hero-text);
        }

        .dashboard-card-value span {
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
        }

        .dashboard-chart {
            grid-column: span 3;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            padding: 20px;
            height: 120px;
            display: flex;
            align-items: flex-end;
            gap: 8px;
        }

        .chart-bar {
            flex: 1;
            background: linear-gradient(180deg, var(--primary) 0%, rgba(249, 115, 22, 0.3) 100%);
            border-radius: 4px 4px 0 0;
            min-height: 20px;
        }

        /* Section Styles */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(32px, 5vw, 42px);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Philosophy Section */
        .philosophy {
            padding: 80px 0;
            background: var(--bg);
            border-top: 1px solid var(--border);
        }

        .philosophy-text {
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 600;
            text-align: center;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        /* Features Carousel */
        .features-section {
            background: var(--bg);
        }


        .carousel-wrapper {
            position: relative;
            overflow: hidden;
        }

        .carousel {
            display: flex;
            transition: transform 0.5s ease;
        }

        .carousel-slide {
            flex: 0 0 100%;
            padding: 0 40px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 20px 16px;
            text-align: center;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .feature-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: rgba(249, 115, 22, 0.08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .feature-title {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .feature-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .carousel-nav {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
            margin-top: 40px;
        }

        .carousel-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .carousel-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        .carousel-dots {
            display: flex;
            gap: 8px;
        }

        .carousel-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .carousel-dot.active {
            width: 24px;
            border-radius: 4px;
            background: var(--primary);
        }

        /* Product Screenshots Carousel */
        .screenshots-carousel {
            margin-top: 60px;
        }

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

        .screenshot-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 16/10;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: all 0.25s ease;
        }

        .screenshot-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }

        .screenshot-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(249, 115, 22, 0.02);
        }

        .screenshot-label {
            position: relative;
            z-index: 1;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .screenshots-nav {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-top: 32px;
        }

        .screenshots-nav .carousel-btn {
            width: 40px;
            height: 40px;
        }

        /* Scenarios Section */
        .scenarios-section {
            background: var(--bg);
        }

        .scenario-item {
            display: flex;
            gap: 60px;
            align-items: center;
            margin-bottom: 120px;
        }

        .scenario-item .scenario-visual {
            flex: 1;
        }

        .scenario-item .scenario-content {
            flex: 1;
        }

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

        .scenario-item:last-child {
            margin-bottom: 0;
        }

        .scenario-visual {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .scenario-visual:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
        }

        .scenario-visual::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(249, 115, 22, 0.02);
        }

        .scenario-visual-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 40px;
        }

        .scenario-visual-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: var(--gradient);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .scenario-visual-text {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .scenario-content {
            padding: 20px 0;
        }

        .scenario-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--gradient);
            border-radius: 8px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .scenario-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .scenario-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .scenario-checklist {
            list-style: none;
        }

        .scenario-checklist li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .scenario-checklist li svg {
            flex-shrink: 0;
            color: var(--accent);
            margin-top: 2px;
        }

        /* Clients Section */
        .clients-section {
            background: var(--bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 60px 0;
        }

        .clients-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .clients-title {
            font-size: 16px;
            color: var(--text-muted);
        }

        .logo-carousel {
            overflow: hidden;
            position: relative;
        }

        .logo-track {
            display: flex;
            gap: 80px;
            animation: scroll 30s linear infinite;
        }

        .logo-track:hover {
            animation-play-state: paused;
        }

        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        .client-logo {
            flex-shrink: 0;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            filter: grayscale(100%);
            opacity: 0.5;
            transition: all 0.3s ease;
        }

        .client-logo:hover {
            filter: grayscale(0%);
            opacity: 1;
        }

        .client-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        /* Our Clients Section */
        .our-clients {
            padding: 100px 0;
        }

        .clients-showcase {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-bottom: 100px;
        }

        .client-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            aspect-ratio: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .client-card::before {
            content: '';
            position: absolute;
            inset: 0;
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .client-card:hover {
            /* 仅保留LOGO放大效果，无底色变化 */
        }

        .client-card:hover::before {
            opacity: 0;
        }

        .client-card-name {
            font-size: 16px;
            font-weight: 600;
            position: relative;
            z-index: 1;
        }

        /* Client Logo Cards */
        .client-logo-img {
            max-width: 80%;
            max-height: 60%;
            object-fit: contain;
            transition: all 0.3s ease;
        }

        .client-card:hover .client-logo-img {
            transform: scale(1.05);
        }

        /* Masonry Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-auto-rows: auto;
            gap: 20px;
            align-items: start;
        }

        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            height: auto;
        }

        .testimonial-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

        .testimonial-author {
            font-size: 14px;
            font-weight: 600;
        }

        .testimonial-company {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .testimonial-quote {
            font-size: 48px;
            color: var(--primary);
            font-family: Georgia, serif;
            line-height: 1;
            margin-bottom: 8px;
            opacity: 0.3;
        }

        .testimonial-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .testimonial-tag {
            font-size: 11px;
            padding: 4px 10px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            color: var(--text-secondary);
        }

        /* Testimonial Slider */
        .testimonials-slider {
            position: relative;
            overflow: hidden;
            padding: 20px 0;
        }

        .testimonials-track {
            display: flex;
            gap: 20px;
            transition: transform 0.5s ease;
            padding: 0 20px;
        }

        .testimonials-track .testimonial-card {
            flex: 0 0 calc(33.333% - 14px);
            min-width: 280px;
        }

        .testimonial-nav {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin-top: 24px;
        }

        .testimonial-arrow {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--surface);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .testimonial-arrow:hover {
            border-color: var(--primary);
            background: var(--primary);
            color: white;
        }

        .testimonial-arrow svg {
            width: 20px;
            height: 20px;
        }

        .testimonial-dots {
            display: flex;
            gap: 8px;
        }

        .testimonial-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .testimonial-dot.active {
            background: var(--primary);
            width: 24px;
            border-radius: 4px;
        }

        /* Special Features */
        .special-features {
            background: var(--bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .special-features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .special-feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            transition: all 0.25s ease;
        }

        .special-feature-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
        }

        .special-feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: var(--gradient);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .special-feature-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .special-feature-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* News Section */
        .news-section {
            padding: 100px 0;
        }

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

        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .news-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.05);
        }

        .news-image {
            aspect-ratio: 16/9;
            background: var(--gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .news-image-text {
            font-size: 14px;
            color: var(--text-muted);
        }

        .news-content {
            padding: 24px;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Lab Section */
        .lab-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 80px 0;
        }

        .lab-content {
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }

        .lab-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: var(--gradient);
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .lab-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .lab-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* About Section */
        .about-section {
            padding: 100px 0;
        }

        .about-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .about-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 32px;
            transition: all 0.25s ease;
        }

        .about-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .about-card-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .about-card-icon {
            width: 32px;
            height: 32px;
            background: rgba(249, 115, 22, 0.06);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .about-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* Timeline */
        .timeline-section {
            padding: 60px 0 100px;
        }

        .timeline-title {
            font-size: 20px;
            font-weight: 600;
            text-align: center;
            margin-bottom: 48px;
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 40px;
            width: 2px;
            background: var(--border);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 8px;
            width: 50%;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            top: 1px;
            width: 12px;
            height: 12px;
            background: var(--gradient);
            border-radius: 50%;
            z-index: 1;
        }

        .timeline-item.left {
            margin-left: 0;
            padding-right: 40px;
            text-align: right;
        }

        .timeline-item.left::before {
            right: -6px;
        }

        .timeline-item.right {
            margin-left: 50%;
            padding-left: 40px;
            text-align: left;
        }

        .timeline-item.right::before {
            left: -6px;
        }

        .timeline-content {
            background: var(--bg);
            padding: 12px 16px;
            border-radius: 8px;
        }

        .timeline-year {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            line-height: 12px;
        }

        .timeline-text {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Footer */
        .footer {
            background: var(--surface-dark);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand {
            max-width: 320px;
        }

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

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

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .mp-qr-wrapper {
            width: 80px;
            height: 80px;
            background: white;
            padding: 4px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .mp-qr {
            width: 100%;
            height: 100%;
            display: block;
        }

        .mp-tip {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 30px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        /* Floating Sidebar */
        .floating-sidebar {
            position: fixed;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        /* Mobile Float Button - Hidden by default on desktop */
        .mobile-float-btn {
            display: none;
        }

        .sidebar-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--surface-light);
            border: 1px solid var(--border);
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: all 0.3s ease;
        }

        .sidebar-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        .sidebar-btn:hover .sidebar-tooltip {
            opacity: 1;
            transform: translateX(0);
        }

        .sidebar-tooltip {
            position: absolute;
            right: 60px;
            background: var(--surface-light);
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13px;
            white-space: nowrap;
            opacity: 0;
            transform: translateX(10px);
            transition: all 0.3s ease;
            pointer-events: none;
            color: var(--text);
        }

        .sidebar-btn:hover .sidebar-tooltip {
            background: var(--text);
            color: white;
        }

        /* CTA Section */
        .cta-section {
            padding: 100px 0;
            background: var(--gradient-subtle);
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .cta-title {
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .cta-video-wrapper {
            max-width: 800px;
            margin: 40px auto;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
            border: 1px solid var(--border);
        }

        .cta-video {
            width: 100%;
            display: block;
            background: #000;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            flex-wrap: nowrap;
            width: 100%;
        }

        .cta-buttons .btn {
            flex-shrink: 0;
        }

        .cta-buttons .btn-secondary {
            color: var(--primary);
            border-color: var(--primary);
            background: transparent;
        }

        .cta-buttons .btn-secondary:hover {
            background: var(--primary);
            color: white;
        }

        /* Animations */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive - Tablet */
        @media (max-width: 1200px) {
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* Responsive - Tablet */
        @media (max-width: 480px) {
            .hero-badge {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .scenario-item {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .scenario-item:nth-child(even) {
                direction: ltr;
            }

            .timeline {
                max-width: 100%;
            }

            .timeline-item {
                margin-bottom: 4px;
            }

            .hero-image-section {
                max-width: 100%;
            }

            .dashboard-content {
                grid-template-columns: 1fr;
            }

            .dashboard-sidebar {
                display: none;
            }

            .dashboard-main {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .dashboard-card {
                padding: 12px;
            }

            .dashboard-chart {
                height: 100px;
            }
        }

        /* Responsive - Mobile */
        @media (max-width: 768px) {
            .nav-cta {
                display: none;
            }
            .lang-switcher {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                order: 2;
            }
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 60px 0;
            }

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

            .section-desc {
                font-size: 14px;
            }

            .nav {
                padding: 12px 0;
            }

            .nav-links {
                display: none;
            }

        .features-grid {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .hero {
            min-height: auto;
            padding: 100px 16px 0;
        }

            .hero-content {
                padding-top: 20px;
                padding-bottom: 40px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-stats {
                flex-direction: column;
                gap: 20px;
                margin-top: 40px;
                padding-top: 40px;
            }

            .stat-item {
                display: flex;
                flex-direction: column;
                align-items: center;
            }

            .stat-value {
                font-size: 32px;
            }

            .hero-image-section {
                margin-top: 20px;
            }

            .hero-image {
                min-height: 280px;
                border-radius: 12px 12px 0 0;
            }

            .dashboard-mockup {
                padding: 16px;
            }

            .dashboard-content {
                grid-template-columns: 1fr;
            }

            .dashboard-sidebar {
                display: none;
            }

            .dashboard-main {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }

            .dashboard-card {
                padding: 12px;
            }

            .dashboard-card-label {
                font-size: 10px;
            }

            .dashboard-card-value {
                font-size: 18px;
            }

            .dashboard-chart {
                height: 80px;
                padding: 12px;
            }

            .philosophy {
                padding: 48px 0;
            }

            .philosophy-text {
                font-size: 20px;
            }

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

            .feature-card {
                padding: 20px 16px;
            }

            .feature-icon {
                width: 40px;
                height: 40px;
                margin-bottom: 12px;
            }

            .feature-title {
                font-size: 13px;
            }

            .feature-desc {
                font-size: 11px;
            }

            .carousel-nav {
                margin-top: 24px;
            }

            .carousel-btn {
                width: 40px;
                height: 40px;
            }

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

            .screenshots-nav {
                margin-top: 24px;
            }

            .scenario-item {
                flex-direction: column;
                gap: 24px;
                margin-bottom: 48px;
            }

            .scenario-item:nth-child(even) {
                flex-direction: column;
            }

            .scenario-number {
                width: 28px;
                height: 28px;
                font-size: 12px;
                margin-bottom: 16px;
            }

            .scenario-title {
                font-size: 20px;
            }

            .scenario-desc {
                font-size: 14px;
            }

            .scenario-checklist li {
                font-size: 13px;
            }

            .scenario-visual {
                aspect-ratio: 4/3;
                width: 100%;
            }

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

            .clients-showcase {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .client-card {
                padding: 24px;
            }

            .client-card-name {
                font-size: 14px;
            }

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

            .testimonial-card {
                padding: 20px;
            }

            .testimonials-track .testimonial-card {
                flex: 0 0 calc(50% - 10px);
            }

            @media (max-width: 640px) {
                .testimonials-track .testimonial-card {
                    flex: 0 0 100%;
                }
                .testimonial-nav {
                    gap: 12px;
                }
                .testimonial-arrow {
                    width: 36px;
                    height: 36px;
                }
                .testimonial-arrow svg {
                    width: 16px;
                    height: 16px;
                }
                .testimonial-dots {
                    gap: 6px;
                }
                .testimonial-dot {
                    width: 6px;
                    height: 6px;
                }
                .testimonial-dot.active {
                    width: 18px;
                }
            }

            .testimonial-card:nth-child(1),
            .testimonial-card:nth-child(4),
            .testimonial-card:nth-child(7) {
                grid-row: span 1;
            }

            .special-features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .special-feature-card {
                padding: 28px 20px;
            }

            .special-feature-icon {
                width: 56px;
                height: 56px;
                margin-bottom: 16px;
            }

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

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

            .about-card {
                padding: 24px;
            }

            .about-card-title {
                font-size: 16px;
            }

            .about-card-text {
                font-size: 13px;
            }

            .timeline-section {
                padding: 40px 0 60px;
            }

            .timeline-title {
                font-size: 18px;
            }

            .timeline-year {
                font-size: 13px;
            }

            .timeline-text {
                font-size: 12px;
            }

            .timeline-item.left {
                padding-right: 24px;
            }

            .timeline-item.right {
                padding-left: 24px;
            }

            .footer {
                padding: 40px 0 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 32px;
                margin-bottom: 32px;
            }

            .footer-brand {
                grid-column: 1 / -1;
                max-width: 100%;
            }

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

            .footer-desc {
                font-size: 13px;
                line-height: 1.5;
            }

            .footer-title {
                margin-bottom: 12px;
            }

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

            .footer-contact-item {
                margin-bottom: 8px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
                font-size: 12px;
                padding-top: 20px;
            }

            .cta-section {
                padding: 60px 0;
            }

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

            .floating-sidebar {
                display: none;
            }

            .mobile-menu {
                padding: 80px 24px 24px;
            }

            .mobile-menu-links li {
                margin-bottom: 20px;
            }

            .mobile-menu-links a {
                font-size: 18px;
            }

            .mobile-menu-cta {
                margin-top: 24px;
            }

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

            /* 移动端悬浮合并按钮 */
            .mobile-float-btn {
                display: none;
                position: fixed;
                right: 16px;
                bottom: 80px;
                z-index: 999;
                opacity: 0;
                transition: opacity 0.3s ease;
            }

            .mobile-float-btn.show {
                display: block;
                opacity: 1;
            }

            .mobile-float-trigger {
                width: 56px;
                height: 56px;
                border-radius: 50%;
                background: var(--primary);
                border: none;
                color: white;
                cursor: pointer;
                display: flex;
                align-items: center;
                justify-content: center;
                box-shadow: 0 4px 20px rgba(249, 115, 22, 0.4);
                transition: transform 0.3s ease;
            }

            .mobile-float-trigger:hover {
                transform: scale(1.1);
            }

            .mobile-float-menu {
                position: absolute;
                bottom: 70px;
                right: 0;
                display: none;
                flex-direction: column;
                gap: 10px;
                background: white;
                padding: 12px;
                border-radius: 12px;
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            }

            .mobile-float-menu.show {
                display: flex;
            }

            .mobile-float-menu .float-menu-item {
                display: flex;
                align-items: center;
                gap: 10px;
                padding: 10px 14px;
                border-radius: 8px;
                text-decoration: none;
                color: var(--text);
                font-size: 14px;
                transition: background 0.2s;
                white-space: nowrap;
            }

            .mobile-float-menu .float-menu-item:hover {
                background: var(--bg-secondary);
            }

            .mobile-float-menu .float-menu-icon {
                width: 36px;
                height: 36px;
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                background: var(--surface-light);
                border: 1px solid var(--border);
                color: var(--primary);
            }

            .mobile-float-menu .float-menu-item:hover .float-menu-icon {
                background: var(--primary);
                border-color: var(--primary);
                color: white;
            }

            .carousel-wrapper {
                overflow: hidden;
            }

            .carousel {
                transition: transform 0.4s ease;
            }

            .carousel-slide {
                padding: 0;
            }

            .lab-section {
                padding: 48px 0;
            }

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

            .lab-desc {
                font-size: 14px;
            }
        }

        /* Responsive - Small Mobile */
        @media (max-width: 640px) {
            .dashboard-content {
                grid-template-columns: 1fr;
            }

            .dashboard-main {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .dashboard-card {
                padding: 10px;
            }

            .dashboard-card-value {
                font-size: 16px;
            }

            .dashboard-card-label {
                font-size: 9px;
            }

            .dashboard-chart {
                height: 60px;
                padding: 8px;
            }

            .chart-bar {
                min-height: 10px;
            }
        }

        @media (max-width: 375px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .clients-showcase {
                grid-template-columns: repeat(3, 1fr);
            }

            .philosophy-text {
                font-size: 18px;
            }

            .dashboard-main {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .dashboard-card {
                padding: 10px;
            }

            .dashboard-chart {
                grid-column: span 1;
            }
        }

        /* Mobile Menu - 与语言下拉菜单一致的样式 */
        .mobile-menu {
            position: fixed;
            top: 60px;
            left: auto;
            right: 16px;
            bottom: auto;
            width: 160px;
            background: var(--hero-surface);
            border: 1px solid var(--hero-border);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            z-index: 999;
            padding: 8px;
            transform: translateX(120%);
            transition: transform 0.3s ease;
        }

        .mobile-menu.active {
            transform: translateX(0);
        }

        .mobile-menu-links {
            list-style: none;
            margin-top: 0;
        }

        .mobile-menu-links li {
            margin-bottom: 0;
        }

        .mobile-menu-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--hero-text-secondary);
            text-decoration: none;
            display: block;
            padding: 10px 16px;
            border-radius: 0;
            transition: all 0.2s ease;
        }

        .mobile-menu-links a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--hero-text);
        }

        .mobile-lang-switcher {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 8px;
            padding-top: 8px;
            border-top: 1px solid var(--hero-border);
        }

        .mobile-lang-switcher .lang-option {
            padding: 10px 16px;
            background: transparent;
            border: none;
            border-radius: 0;
            color: var(--hero-text-secondary);
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: left;
        }

        .mobile-lang-switcher .lang-option:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--hero-text);
        }

        .mobile-lang-switcher .lang-option.active {
            color: var(--primary);
        }

        .mobile-menu-cta {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 32px;
        }