:root {
            --primary: #FF6600;
            --primary-light: #FF8533;
            --primary-dark: #CC5200;
            --dark: #1A1A1A;
            --grey-dark: #333333;
            --grey-light: #F7F7F7;
            --white: #FFFFFF;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* Base Reset */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--white);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
        }

        p {
            color: var(--grey-dark);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            outline: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 102, 0, 0.45);
        }

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

        .btn-outline:hover {
            background: rgba(255, 102, 0, 0.05);
            transform: translateY(-2px);
        }

        /* Navigation */
        .nav-header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-box img {
            height: 45px;
            width: auto;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 25px;
            list-style: none;
        }

        .nav-link {
            font-weight: 500;
            font-size: 15px;
            color: var(--grey-dark);
            position: relative;
        }

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

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Section Layout */
        section {
            padding: 90px 0;
            position: relative;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 55px;
        }

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

        .section-title {
            font-size: 36px;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-desc {
            max-width: 700px;
            margin: 0 auto;
            color: var(--grey-dark);
            font-size: 16px;
        }

        /* 1. Hero Section (NO IMAGES, pure CSS gradient & graphics) */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.08) 0%, transparent 50%),
                        linear-gradient(135deg, #FFF9F5 0%, #FFFFFF 100%);
            padding: 120px 0;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }

        .hero-h1 {
            font-size: 42px;
            line-height: 1.25;
            margin-bottom: 25px;
            color: var(--dark);
        }

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

        .hero-p {
            font-size: 18px;
            color: var(--grey-dark);
            margin-bottom: 35px;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        /* Hero CSS graphics - strictly no img tag */
        .hero-visual-card {
            background: var(--white);
            border-radius: 16px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
            border: 1px solid rgba(255, 102, 0, 0.15);
            padding: 30px;
            position: relative;
        }

        .visual-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
        }

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

        .dot-red { background: #FF4D4F; }
        .dot-yellow { background: #FFC53D; }
        .dot-green { background: #52C41A; }

        .visual-bar {
            height: 8px;
            border-radius: 4px;
            background: var(--grey-light);
            width: 100%;
        }

        .visual-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 4px;
            width: 75%;
            animation: progress 2.5s ease-out infinite alternate;
        }

        @keyframes progress {
            0% { width: 30%; }
            100% { width: 90%; }
        }

        .visual-box {
            background: var(--grey-light);
            border-radius: 8px;
            padding: 15px;
            margin-top: 15px;
            font-family: monospace;
            font-size: 13px;
            color: var(--grey-dark);
            border-left: 4px solid var(--primary);
        }

        /* 2. 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 28px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .about-text p {
            margin-bottom: 20px;
            font-size: 16px;
            text-align: justify;
        }

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

        .stat-card {
            background: var(--white);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 102, 0, 0.08);
            border-color: rgba(255,102,0,0.2);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--grey-dark);
        }

        /* 3. 全平台AIGC服务 */
        .models-container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 1000px;
            margin: 0 auto;
        }

        .model-badge {
            background: var(--white);
            color: var(--dark);
            border: 1px solid rgba(255,102,0,0.2);
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

        .model-badge:hover {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(255,102,0,0.3);
        }

        /* 4. 一站式AIGC制作 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border-radius: 12px;
            padding: 35px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary);
            transform: scaleY(0);
            transition: var(--transition);
            transform-origin: bottom;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(255, 102, 0, 0.1);
        }

        .service-card:hover::before {
            transform: scaleY(1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: rgba(255, 102, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--grey-dark);
            line-height: 1.6;
        }

        /* 5. 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .solution-card {
            background: var(--white);
            border-radius: 16px;
            border: 1px solid #ECECEC;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 12px 30px rgba(0,0,0,0.08);
        }

        .solution-body {
            padding: 30px;
        }

        .solution-tag {
            background: rgba(255, 102, 0, 0.1);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 15px;
        }

        .solution-body h4 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .solution-body p {
            font-size: 14px;
            color: var(--grey-dark);
            margin-bottom: 15px;
        }

        /* 6. 全国服务网络 */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .map-placeholder {
            background: #FFF5EE;
            border: 2px dashed rgba(255, 102, 0, 0.3);
            border-radius: 16px;
            height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 30px;
        }

        .map-icon {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 15px;
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .network-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .network-item {
            background: var(--white);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

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

        .network-item p {
            font-size: 13px;
        }

        /* 7. 标准化AIGC流程 */
        .process-flow {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 40px;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            background: var(--white);
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .process-step:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(255, 102, 0, 0.08);
        }

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: 0 auto 20px auto;
        }

        .process-step h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--grey-dark);
        }

        /* 8. 技术标准 */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }

        .tech-card {
            background: var(--white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            text-align: center;
        }

        .tech-card h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .tech-card p {
            font-size: 14px;
        }

        /* 9. 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0,0,0,0.04);
            border: 1px solid rgba(0,0,0,0.05);
        }

        .case-img-container {
            position: relative;
            background: var(--grey-light);
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }

        .case-img-container img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.03);
        }

        .case-info {
            padding: 25px;
        }

        .case-info h4 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .case-info p {
            font-size: 14px;
            color: var(--grey-dark);
        }

        .asset-gallery {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
            margin-top: 40px;
        }

        .asset-main {
            background: var(--grey-light);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .asset-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .asset-sub-grid {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 20px;
        }

        .asset-sub-card {
            background: var(--grey-light);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .asset-sub-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* 10. 对比评测 */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid rgba(0,0,0,0.08);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            margin-bottom: 40px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--white);
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

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

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tr.highlight {
            background: rgba(255, 102, 0, 0.03);
        }

        .comparison-table tr.highlight td:first-child {
            border-left: 4px solid var(--primary);
        }

        .rating-badge {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 13px;
        }

        .review-banner {
            background: linear-gradient(135deg, #FFF9F5 0%, #FFF0E5 100%);
            border: 1px solid rgba(255, 102, 0, 0.25);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

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

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

        .score-stars {
            color: #FFB800;
            font-size: 20px;
            margin-top: 4px;
        }

        /* 11. 智能需求匹配 (表单) & 20. 联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: flex-start;
        }

        .contact-info-card {
            background: var(--white);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .contact-meta-item {
            margin-bottom: 25px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-meta-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255,102,0,0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }

        .contact-meta-content h5 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .contact-meta-content p {
            font-size: 14px;
            word-break: break-all;
        }

        .qr-wrapper {
            margin-top: 30px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            text-align: center;
        }

        .qr-box {
            border: 1px solid rgba(0,0,0,0.08);
            border-radius: 12px;
            padding: 15px;
            background: var(--white);
        }

        .qr-box img {
            width: 100%;
            max-width: 130px;
            height: auto;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .qr-box p {
            font-size: 12px;
            font-weight: 600;
        }

        .form-card {
            background: var(--white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.05);
            border: 1px solid rgba(255,102,0,0.1);
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--grey-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.1);
            font-size: 15px;
            color: var(--dark);
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255,102,0,0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        /* 12. Token比价参考 */
        .token-comparison-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .token-card {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid rgba(0,0,0,0.05);
            padding: 25px;
            text-align: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .token-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }

        .token-model-name {
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 15px;
        }

        .token-price {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .token-unit {
            font-size: 12px;
            color: var(--grey-dark);
            margin-bottom: 15px;
        }

        .token-status {
            background: rgba(82, 196, 26, 0.1);
            color: #52C41A;
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 12px;
            display: inline-block;
        }

        /* 13. 职业技术培训 & 14. 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background: var(--white);
            border-radius: 12px;
            padding: 25px;
            border-top: 4px solid var(--primary);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .training-card h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .training-card p {
            font-size: 13px;
        }

        /* 15. 帮助中心 */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .help-box {
            background: var(--white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
        }

        .help-box h4 {
            margin-bottom: 12px;
            font-size: 18px;
        }

        .help-box ul {
            list-style: none;
        }

        .help-box ul li {
            margin-bottom: 8px;
            font-size: 14px;
        }

        .help-box ul li a:hover {
            color: var(--primary);
        }

        /* 16. 常见用户问题 FAQ */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 15px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.08);
            background: var(--white);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px 25px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--white);
        }

        .faq-header::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-header::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            background: var(--grey-light);
        }

        .faq-content {
            padding: 20px 25px;
            font-size: 14px;
            line-height: 1.6;
            color: var(--grey-dark);
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        /* 17. 常见问题自助排查 */
        .troubleshooting-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            max-width: 900px;
            margin: 0 auto;
        }

        .trouble-card {
            background: var(--white);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .trouble-card h4 {
            margin-bottom: 12px;
            color: var(--primary);
            font-size: 16px;
        }

        .trouble-card ol {
            padding-left: 20px;
            font-size: 13px;
            color: var(--grey-dark);
        }

        .trouble-card li {
            margin-bottom: 8px;
        }

        /* 18. AI术语百科 */
        .term-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .term-card {
            background: var(--white);
            border: 1px solid rgba(0,0,0,0.05);
            border-radius: 8px;
            padding: 20px;
        }

        .term-card h4 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 16px;
        }

        .term-card p {
            font-size: 13px;
        }

        /* 19. 行业资讯 / 知识库 */
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .blog-card {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            overflow: hidden;
            transition: var(--transition);
        }

        .blog-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
            border-color: rgba(255,102,0,0.2);
        }

        .blog-info {
            padding: 25px;
        }

        .blog-date {
            font-size: 12px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 10px;
            display: block;
        }

        .blog-info h4 {
            font-size: 18px;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .blog-info p {
            font-size: 14px;
            margin-bottom: 15px;
        }

        .blog-link {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .blog-link:hover {
            color: var(--primary-dark);
        }

        /* 21. 加盟代理 */
        .agent-banner {
            background: linear-gradient(135deg, var(--dark) 0%, #2A2A2A 100%);
            border-radius: 20px;
            padding: 60px 40px;
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
        }

        .agent-text {
            max-width: 600px;
        }

        .agent-text h3 {
            color: var(--white);
            font-size: 32px;
            margin-bottom: 15px;
        }

        .agent-text p {
            color: #CCCCCC;
            font-size: 16px;
        }

        .agent-badge {
            background: var(--primary);
            color: var(--white);
            padding: 5px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 15px;
            display: inline-block;
        }

        /* User Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background: var(--white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            position: relative;
        }

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .user-avatar-placeholder {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .user-meta h4 {
            font-size: 15px;
            margin-bottom: 2px;
        }

        .user-meta span {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
        }

        .testimonial-text {
            font-size: 14px;
            line-height: 1.6;
            color: var(--grey-dark);
            font-style: italic;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #CCCCCC;
            padding: 80px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand h4 {
            color: var(--white);
            font-size: 20px;
            margin-bottom: 15px;
        }

        .footer-brand p {
            color: #999999;
            margin-bottom: 20px;
        }

        .footer-links-title {
            color: var(--white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

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

        .footer-links-list a {
            color: #999999;
        }

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

        .footer-bottom {
            border-top: 1px solid #333333;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

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

        .footer-bottom-links a {
            color: #999999;
        }

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

        /* Float Customer Service */
        .float-bar {
            position: fixed;
            bottom: 40px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--white);
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 102, 0, 0.2);
            color: var(--primary);
            position: relative;
        }

        .float-btn:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-3px);
        }

        .float-tooltip {
            position: absolute;
            right: 60px;
            background: var(--white);
            color: var(--dark);
            padding: 10px 15px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            font-size: 13px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.05);
        }

        .float-tooltip img {
            width: 120px;
            height: auto;
            display: block;
            margin-top: 5px;
        }

        .float-btn:hover .float-tooltip {
            opacity: 1;
            visibility: visible;
        }

        /* Back to Top */
        #back-to-top {
            display: none;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .hero-grid, .about-grid, .network-grid, .case-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

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

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-top: 1px solid rgba(0,0,0,0.05);
            }

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

            .nav-actions {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .section-title {
                font-size: 28px;
            }

            .hero-h1 {
                font-size: 32px;
            }

            .testimonials-grid, .help-grid, .term-grid, .troubleshooting-grid {
                grid-template-columns: 1fr;
            }

            .asset-gallery {
                grid-template-columns: 1fr;
            }

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