:root {
            --primary: #2563EB; /* 皇家宝蓝 */
            --accent: #FF5A1F; /* 活力亮橙 */
            --dark: #0F172A; /* 深蓝黑 */
            --light: #F8FAFC; /* 淡灰 */
            --white: #FFFFFF;
            --gray: #64748B;
            --border: #E2E8F0;
            --success: #10B981;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--dark);
            background-color: var(--white);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Container */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 2px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .nav-links .cta-btn {
            background-color: var(--accent);
            color: var(--white);
            padding: 8px 16px;
            border-radius: 4px;
            font-weight: bold;
            border: 2px solid var(--accent);
            transition: all 0.3s;
        }

        .nav-links .cta-btn:hover {
            background-color: transparent;
            color: var(--accent);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: none;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 3px;
        }

        /* Hero Section (No Images) */
        .hero {
            background: linear-gradient(135deg, #EFF6FF 0%, #FFF7ED 100%);
            padding: 100px 0 80px;
            text-align: center;
            border-bottom: 4px solid var(--accent);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,90,31,0.05) 0%, rgba(37,99,235,0.05) 100%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background-color: var(--primary);
            color: var(--white);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: bold;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 38px;
            font-weight: 900;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 20px;
        }

        .hero h1 span {
            color: var(--accent);
        }

        .hero p {
            font-size: 18px;
            color: var(--gray);
            margin-bottom: 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            text-decoration: none;
            padding: 15px 32px;
            font-size: 16px;
            font-weight: bold;
            border-radius: 6px;
            transition: all 0.3s;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.4);
        }

        .btn-primary:hover {
            background-color: #e04b14;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-secondary:hover {
            background-color: #1d4ed8;
            transform: translateY(-2px);
        }

        /* Stats Section */
        .stats {
            padding: 50px 0;
            background-color: var(--white);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-card {
            background: var(--light);
            padding: 30px 20px;
            border-radius: 8px;
            border-top: 4px solid var(--primary);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-card:nth-child(even) {
            border-top-color: var(--accent);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .stat-card:nth-child(odd) .stat-number {
            color: var(--primary);
        }

        .stat-card:nth-child(even) .stat-number {
            color: var(--accent);
        }

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

        /* Common Section Layout */
        .section {
            padding: 80px 0;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-tag {
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--dark);
        }

        /* Service Cards Section */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid var(--border);
            padding: 40px 30px;
            border-radius: 12px;
            transition: all 0.3s;
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
            border-color: var(--primary);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 25px;
        }

        .service-card:nth-child(2n) .service-icon {
            background: rgba(255, 90, 31, 0.1);
            color: var(--accent);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--gray);
            font-size: 14px;
            margin-bottom: 20px;
        }

        .service-features {
            list-style: none;
        }

        .service-features li {
            font-size: 13px;
            color: var(--dark);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .service-features li::before {
            content: '✓';
            color: var(--success);
            font-weight: bold;
        }

        /* Model Integration Grid */
        .model-list-wrapper {
            margin-top: 40px;
            background: var(--white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .model-list-title {
            text-align: center;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-tag {
            background: var(--light);
            border: 1px solid var(--border);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--dark);
            transition: all 0.3s;
        }

        .model-tag:hover {
            background: var(--accent);
            color: var(--white);
            border-color: var(--accent);
        }

        /* Creation Scenes (One-stop creation) */
        .creation-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }

        .creation-text h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .creation-text p {
            color: var(--gray);
            margin-bottom: 25px;
        }

        .creation-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .feature-box {
            background: var(--white);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--accent);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .feature-box h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .feature-box p {
            font-size: 13px;
            margin: 0;
        }

        .creation-visual {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .creation-visual img {
            border-radius: 12px;
            width: 100%;
            height: auto;
            object-fit: cover;
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            border: 2px solid var(--border);
        }

        /* Solutions (Tabs / Grid) */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .solution-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 25px;
            transition: all 0.3s;
        }

        .solution-card:hover {
            border-color: var(--accent);
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }

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

        .solution-card p {
            font-size: 13px;
            color: var(--gray);
        }

        /* Process Steps */
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-bottom: 40px;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 5%;
            width: 90%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }

        .step-item {
            position: relative;
            z-index: 2;
            text-align: center;
            width: 20%;
        }

        .step-number {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 15px;
            border: 4px solid var(--white);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }

        .step-item:nth-child(even) .step-number {
            background: var(--accent);
        }

        .step-item h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 12px;
            color: var(--gray);
            padding: 0 10px;
        }

        /* Compare Section */
        .compare-box {
            background: var(--white);
            border-radius: 12px;
            border: 2px solid var(--primary);
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }

        .compare-header {
            background: var(--primary);
            color: var(--white);
            padding: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .compare-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-big {
            font-size: 48px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
        }

        .score-details {
            font-size: 14px;
        }

        .score-stars {
            color: #FBBF24;
            font-size: 18px;
            margin-top: 5px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
        }

        .compare-table th {
            background: var(--light);
            font-weight: 700;
        }

        .compare-table tr:hover {
            background: #F8FAFC;
        }

        .compare-table td:nth-child(2) {
            font-weight: 700;
            color: var(--primary);
            background: rgba(37, 99, 235, 0.02);
        }

        .text-success-bold {
            color: var(--success);
            font-weight: bold;
        }

        /* Token Matrix (Price) */
        .price-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .price-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 35px 30px;
            text-align: center;
            transition: all 0.3s;
            position: relative;
        }

        .price-card.popular {
            border: 2px solid var(--accent);
            box-shadow: 0 10px 25px rgba(255,90,31,0.1);
        }

        .price-card.popular::before {
            content: '首选推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: var(--white);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: bold;
        }

        .price-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
        }

        .price-value {
            font-size: 32px;
            font-weight: 900;
            color: var(--dark);
            margin-bottom: 25px;
        }

        .price-value span {
            font-size: 14px;
            color: var(--gray);
            font-weight: normal;
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .price-features li::before {
            content: '●';
            color: var(--accent);
            font-size: 10px;
        }

        /* Training Section */
        .training-wrapper {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 40px;
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .training-info {
            flex: 1;
        }

        .training-info h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }

        .training-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 20px 0;
        }

        .training-tag-item {
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: bold;
            padding: 6px 12px;
            border-radius: 4px;
        }

        .training-visual {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .training-visual img {
            border-radius: 8px;
            width: 100%;
            height: auto;
            border: 1px solid var(--border);
        }

        /* Case Section */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }

        .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .case-content {
            padding: 20px;
        }

        .case-tag {
            font-size: 11px;
            font-weight: bold;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-content h4 {
            font-size: 16px;
            margin-bottom: 10px;
        }

        .case-content p {
            font-size: 13px;
            color: var(--gray);
        }

        /* Review Section */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px;
            position: relative;
        }

        .review-quote {
            font-size: 40px;
            color: rgba(255, 90, 31, 0.1);
            position: absolute;
            top: 15px;
            left: 20px;
            line-height: 1;
            font-family: serif;
        }

        .review-text {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .review-card:nth-child(even) .user-avatar {
            background: var(--accent);
        }

        .user-info h5 {
            font-size: 14px;
            margin-bottom: 2px;
        }

        .user-info span {
            font-size: 12px;
            color: var(--gray);
        }

        /* Form (Interactive) */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-details {
            margin-bottom: 30px;
        }

        .contact-item {
            margin-bottom: 20px;
        }

        .contact-item h4 {
            font-size: 16px;
            margin-bottom: 5px;
            color: var(--primary);
        }

        .contact-item p {
            font-size: 14px;
            color: var(--dark);
        }

        .form-box {
            background: var(--white);
            border: 2px solid var(--dark);
            border-radius: 12px;
            padding: 40px;
            box-shadow: 8px 8px 0px var(--dark);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 6px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            border-color: var(--accent);
        }

        textarea.form-control {
            resize: vertical;
            height: 100px;
        }

        /* Help Center / FAQ / Troubleshoot */
        .help-layout {
            display: grid;
            grid-template-columns: 1.8fr 1.2fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--white);
            overflow: hidden;
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 20px;
            text-align: left;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--dark);
        }

        .faq-trigger::after {
            content: '+';
            font-size: 18px;
            color: var(--primary);
        }

        .faq-item.active .faq-trigger::after {
            content: '-';
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--light);
        }

        .faq-content-inner {
            padding: 20px;
            font-size: 14px;
            color: var(--gray);
            border-top: 1px solid var(--border);
        }

        /* Troubleshooting Tool */
        .trouble-box {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px;
        }

        .trouble-box h3 {
            font-size: 18px;
            margin-bottom: 20px;
        }

        .trouble-tabs {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }

        .tab-btn {
            flex: 1;
            padding: 10px;
            font-size: 12px;
            font-weight: 700;
            background: var(--light);
            border: 1px solid var(--border);
            border-radius: 4px;
            cursor: pointer;
            text-align: center;
        }

        .tab-btn.active {
            background: var(--accent);
            color: var(--white);
            border-color: var(--accent);
        }

        .trouble-panels {
            min-height: 120px;
        }

        .panel-content {
            display: none;
        }

        .panel-content.active {
            display: block;
        }

        .panel-content h4 {
            font-size: 14px;
            margin-bottom: 8px;
        }

        .panel-content p {
            font-size: 13px;
            color: var(--gray);
            margin-bottom: 12px;
        }

        .trouble-btn {
            font-size: 12px;
            color: var(--primary);
            text-decoration: none;
            font-weight: bold;
        }

        /* Articles & Glossary */
        .knowledge-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .articles-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 20px;
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .article-info {
            flex: 1;
        }

        .article-info h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .article-info h4 a {
            color: var(--dark);
            text-decoration: none;
            transition: color 0.3s;
        }

        .article-info h4 a:hover {
            color: var(--accent);
        }

        .article-info p {
            font-size: 13px;
            color: var(--gray);
        }

        .glossary-box {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 25px;
        }

        .glossary-box h3 {
            font-size: 16px;
            margin-bottom: 15px;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 8px;
        }

        .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .glossary-item h5 {
            font-size: 13px;
            margin-bottom: 4px;
            color: var(--primary);
        }

        .glossary-item p {
            font-size: 12px;
            color: var(--gray);
        }

        /* Footer & Partners */
        footer {
            background-color: var(--dark);
            color: #94A3B8;
            padding: 60px 0 30px;
            border-top: 5px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h3 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-col p {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 15px;
        }

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

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

        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s;
        }

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

        .qr-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .qr-item {
            text-align: center;
            font-size: 11px;
        }

        .qr-item img {
            width: 100%;
            max-width: 90px;
            height: auto;
            border-radius: 4px;
            margin-bottom: 5px;
            border: 2px solid var(--white);
        }

        .friendly-links {
            border-top: 1px solid #1E293B;
            border-bottom: 1px solid #1E293B;
            padding: 20px 0;
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 12px;
        }

        .friendly-links a {
            color: #64748B;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .ai-page-home-link {
            color: var(--accent);
            text-decoration: none;
            font-weight: bold;
        }

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 1001;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--accent);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            cursor: pointer;
            position: relative;
            transition: transform 0.3s;
        }

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

        .float-btn.qq-btn {
            background: var(--primary);
        }

        .float-btn-pop {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--white);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            border: 1px solid var(--border);
            width: 150px;
            text-align: center;
        }

        .float-btn-pop img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        .float-btn-pop p {
            font-size: 12px;
            color: var(--dark);
            margin-top: 8px;
            font-weight: bold;
        }

        .float-btn:hover .float-btn-pop {
            display: block;
        }

        .back-to-top {
            display: none;
            background: var(--dark);
            font-weight: bold;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .services-grid, .price-matrix-grid, .reviews-grid, .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-wrapper {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--white);
                padding: 20px;
                border-bottom: 2px solid var(--border);
                box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            }

            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

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

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

            .creation-grid, .contact-layout, .help-layout, .knowledge-grid {
                grid-template-columns: 1fr;
            }

            .process-steps {
                flex-direction: column;
                gap: 30px;
            }

            .process-steps::before {
                display: none;
            }

            .step-item {
                width: 100%;
            }

            .services-grid, .price-matrix-grid, .reviews-grid, .cases-grid, .solutions-grid {
                grid-template-columns: 1fr;
            }

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