/* CSS Reset & Variables */
        :root {
            --primary: #ff2a74; /* 桃红 */
            --primary-gradient: linear-gradient(135deg, #ff2a74 0%, #ff5e97 50%, #9c27b0 100%);
            --secondary: #9c27b0; /* 艳丽紫 */
            --accent: #c2185b; /* 深桃红（用于高对比度文本） */
            --text-main: #2d3748;
            --text-dark: #1a202c;
            --text-muted: #718096;
            --bg-light: #fff5f8; /* 浅桃红色调底色 */
            --bg-white: #ffffff;
            --border-color: #ffd2e1;
            --shadow-sm: 0 2px 4px rgba(255, 42, 116, 0.05);
            --shadow-md: 0 8px 24px rgba(255, 42, 116, 0.08);
            --shadow-lg: 0 16px 36px rgba(255, 42, 116, 0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --container-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, "Noto Sans CJK SC", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
        }

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

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

        ul {
            list-style: none;
        }

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

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

        .section-padding {
            padding: 100px 0;
        }

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

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 42, 116, 0.1);
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            border-radius: 50px;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
            border: 1px solid rgba(255, 42, 116, 0.15);
        }

        .section-title {
            font-size: 36px;
            color: var(--text-dark);
            font-weight: 800;
            margin-bottom: 20px;
            position: relative;
        }

        .section-title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: var(--bg-white);
            box-shadow: 0 4px 15px rgba(255, 42, 116, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 42, 116, 0.4);
        }

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

        .btn-outline:hover {
            background: rgba(255, 42, 116, 0.05);
            transform: translateY(-2px);
        }

        /* Header Navigation */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

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

        .ai-page-logo {
            height: 48px;
            width: auto;
            object-fit: contain;
        }

        .brand-name {
            font-size: 22px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav ul {
            display: flex;
            gap: 25px;
        }

        nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 5px 0;
        }

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

        nav a:hover {
            color: var(--primary);
        }

        nav a:hover::after {
            width: 100%;
        }

        .nav-btn {
            padding: 10px 20px;
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
        }

        /* Hero Section (No Images!) */
        .hero {
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(255, 240, 245, 1) 0%, rgba(255, 255, 255, 1) 90%);
            padding: 120px 0 100px;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        /* CSS Geometric Decorations for Hero */
        .hero::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 42, 116, 0.08) 0%, rgba(156, 39, 176, 0.03) 70%);
            border-radius: 50%;
            top: -100px;
            right: -100px;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(156, 39, 176, 0.06) 0%, rgba(255, 42, 116, 0.02) 70%);
            border-radius: 50%;
            bottom: -200px;
            left: -200px;
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-title {
            font-size: 54px;
            line-height: 1.15;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 25px;
            letter-spacing: -1px;
        }

        .hero-title h1 {
            font-size: inherit;
            display: inline;
        }

        .hero-title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 20px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        /* Data Indicators */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-white);
            border-radius: 16px;
            padding: 30px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

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

        .stat-val {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
            font-variant-numeric: tabular-nums;
        }

        .stat-lbl {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* About Us Section */
        .about {
            background-color: var(--bg-white);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 26px;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-text p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feat-card {
            padding: 20px;
            background: var(--bg-light);
            border-radius: 12px;
            border-left: 4px solid var(--primary);
        }

        .about-feat-card h4 {
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .about-feat-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* Service Cards Grid */
        .services {
            background-color: var(--bg-light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 35px 25px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .service-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-gradient);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .service-card:hover::after {
            transform: scaleX(1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: rgba(255, 42, 116, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
        }

        .service-icon svg {
            width: 32px;
            height: 32px;
            fill: currentColor;
        }

        .service-card h3 {
            font-size: 20px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 15px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .model-list-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .model-tag {
            font-size: 12px;
            padding: 4px 10px;
            background: var(--bg-light);
            color: var(--accent);
            border-radius: 4px;
            font-weight: 500;
        }

        /* One-stop creation flow */
        .one-stop {
            background-color: var(--bg-white);
        }

        .creation-flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }

        .flow-card {
            background: var(--bg-light);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .flow-step {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 32px;
            font-weight: 900;
            color: rgba(255, 42, 116, 0.15);
        }

        .flow-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .flow-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* Industry Solutions & Service Network */
        .solutions {
            background-color: var(--bg-light);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .solution-card h3 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 15px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .solution-card h3::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--primary-gradient);
            border-radius: 2px;
            display: inline-block;
        }

        .solution-card ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .solution-card li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-card li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        /* Network & Standard Steps */
        .network {
            background-color: var(--bg-white);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 50px;
            align-items: center;
        }

        .network-map-visual {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .network-dots {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .network-dot {
            background: var(--bg-white);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .network-dot .city {
            font-weight: 700;
            color: var(--text-dark);
        }

        .network-dot .status {
            font-size: 12px;
            color: #2ec4b6;
            margin-top: 5px;
            display: block;
        }

        /* Timeline Flow */
        .timeline {
            background-color: var(--bg-light);
        }

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

        .timeline-steps::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 4px;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            position: absolute;
            top: 25px;
            width: 24px;
            height: 24px;
            background: var(--primary-gradient);
            border-radius: 50%;
            z-index: 5;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -12px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -12px;
        }

        .timeline-content {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            display: inline-block;
            max-width: 100%;
        }

        .timeline-content h4 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .timeline-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* Technical Standards */
        .standards {
            background-color: var(--bg-white);
        }

        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .standard-card {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            transition: var(--transition);
        }

        .standard-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .standard-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        /* Cases Center (Image Gallery - Responsive Layout) */
        .cases {
            background-color: var(--bg-light);
        }

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

        .case-card {
            background: var(--bg-white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-container {
            width: 100%;
            height: 220px;
            overflow: hidden;
            background: #eaeaea;
        }

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

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .case-tag {
            align-self: flex-start;
            font-size: 12px;
            padding: 4px 10px;
            background: rgba(255, 42, 116, 0.08);
            color: var(--accent);
            border-radius: 4px;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .case-title {
            font-size: 18px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Comparison Board */
        .evaluation {
            background-color: var(--bg-white);
        }

        .eval-container {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 50px;
            align-items: center;
        }

        .rating-box {
            background: var(--primary-gradient);
            border-radius: 20px;
            padding: 40px;
            color: var(--bg-white);
            text-align: center;
            box-shadow: var(--shadow-lg);
        }

        .rating-score {
            font-size: 72px;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-scale {
            font-size: 18px;
            opacity: 0.85;
            margin-bottom: 20px;
            display: block;
        }

        .rating-stars {
            font-size: 24px;
            color: #ffd700;
            margin-bottom: 15px;
        }

        .rating-label {
            font-size: 16px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 50px;
            display: inline-block;
        }

        .eval-table-wrapper {
            overflow-x: auto;
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            font-weight: 700;
            color: var(--text-dark);
            background: var(--bg-light);
        }

        .eval-table td strong {
            color: var(--accent);
        }

        /* Token 比价参考 Table */
        .token-pricing {
            background-color: var(--bg-light);
        }

        .table-responsive {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .pricing-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

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

        .pricing-table th {
            background: var(--bg-white);
            font-weight: 700;
            color: var(--text-dark);
        }

        .pricing-table tbody tr:hover {
            background: rgba(255, 42, 116, 0.02);
        }

        .pricing-table .cheapest {
            color: #2ec4b6;
            font-weight: 700;
        }

        /* Training Certifications */
        .training {
            background-color: var(--bg-white);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }

        .cert-card {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .cert-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .cert-icon {
            width: 50px;
            height: 50px;
            margin: 0 auto 20px;
            background: var(--primary-gradient);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .cert-card h3 {
            font-size: 16px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cert-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* FAQ Section Accordion */
        .faq {
            background-color: var(--bg-light);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: 12px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-question {
            font-weight: 700;
            color: var(--text-dark);
            font-size: 16px;
        }

        .faq-icon {
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(255, 42, 116, 0.01);
        }

        .faq-answer {
            padding: 0 25px 20px;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-content {
            max-height: 200px;
        }

        /* Self Troubleshooting & AI Glossary */
        .troubleshoot {
            background-color: var(--bg-white);
        }

        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .diagnose-list, .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .diag-item, .gloss-item {
            background: var(--bg-light);
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--border-color);
        }

        .diag-item h4, .gloss-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .diag-item p, .gloss-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* Customer Reviews */
        .reviews {
            background-color: var(--bg-light);
        }

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

        .review-card {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .review-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-main);
            margin-bottom: 20px;
            position: relative;
        }

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

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

        .review-meta h4 {
            font-size: 15px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .review-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Smart Matching Form & Agent Section */
        .form-agent-section {
            background-color: var(--bg-white);
        }

        .form-agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .matching-form-wrap {
            background: var(--bg-light);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .matching-form-wrap h3 {
            font-size: 22px;
            color: var(--text-dark);
            margin-bottom: 25px;
            font-weight: 800;
        }

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

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

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
            color: var(--text-main);
            font-size: 14px;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 42, 116, 0.1);
        }

        .btn-submit {
            width: 100%;
            margin-top: 10px;
        }

        .agent-wrap {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .agent-badge {
            background: rgba(156, 39, 176, 0.1);
            color: var(--secondary);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 13px;
            font-weight: 700;
            align-self: flex-start;
            margin-bottom: 15px;
        }

        .agent-wrap h3 {
            font-size: 28px;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-weight: 800;
        }

        .agent-features {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 30px;
        }

        .agent-feat-item {
            display: flex;
            gap: 15px;
        }

        .agent-feat-icon {
            width: 24px;
            height: 24px;
            background: var(--primary-gradient);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 12px;
        }

        .agent-feat-desc h4 {
            font-size: 16px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 5px;
        }

        .agent-feat-desc p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* News & Knowledge base */
        .knowledge {
            background-color: var(--bg-light);
        }

        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .news-card {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-date {
            font-size: 12px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 25px;
            flex-grow: 1;
        }

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

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

        /* Footer & Contact Section */
        .contact-footer-section {
            background-color: #1a0b1f; /* 深色艳丽底色，高对比度 */
            color: #e2d9e6;
            padding-top: 100px;
            border-top: 5px solid var(--primary);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
            margin-bottom: 80px;
        }

        .contact-info h3 {
            font-size: 32px;
            color: var(--bg-white);
            margin-bottom: 25px;
            font-weight: 800;
        }

        .contact-info p {
            margin-bottom: 30px;
            line-height: 1.8;
            font-size: 16px;
        }

        .contact-methods {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }

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

        .contact-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 42, 116, 0.15);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-detail h4 {
            color: var(--bg-white);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .contact-detail p {
            font-size: 14px;
            margin-bottom: 0;
            word-break: break-all;
        }

        .contact-qrs {
            display: flex;
            gap: 30px;
            justify-content: flex-end;
        }

        .qr-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            max-width: 180px;
        }

        .qr-card img {
            width: 100%;
            border-radius: 8px;
            margin-bottom: 12px;
        }

        .qr-card span {
            font-size: 13px;
            color: var(--bg-white);
            font-weight: 600;
            display: block;
        }

        .qr-card small {
            font-size: 11px;
            opacity: 0.7;
            display: block;
            margin-top: 4px;
        }

        /* Footer Bottom */
        footer {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 40px 0;
            background: #110515;
            color: #b1a7b6;
        }

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

        .footer-copyright {
            font-size: 14px;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            font-size: 14px;
        }

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

        .friend-links {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 25px;
            margin-top: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 13px;
        }

        .friend-links span {
            color: var(--bg-white);
            font-weight: 600;
        }

        .friend-links a {
            color: #928797;
        }

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

        /* Floating customer service widget */
        .floating-widget {
            position: fixed;
            bottom: 40px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 55px;
            height: 55px;
            background: var(--bg-white);
            border-radius: 50%;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            color: var(--primary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--primary);
            color: var(--bg-white);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-qr-popup {
            position: absolute;
            right: 70px;
            bottom: 0;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 15px;
            box-shadow: var(--shadow-lg);
            display: none;
            width: 160px;
            text-align: center;
        }

        .float-qr-popup img {
            width: 100%;
            margin-bottom: 8px;
        }

        .float-qr-popup span {
            font-size: 12px;
            color: var(--text-dark);
            font-weight: 600;
        }

        .float-btn:hover .float-qr-popup {
            display: block;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 42px;
            }
            .about-grid, .network-grid, .eval-container, .form-agent-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .contact-qrs {
                justify-content: flex-start;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: var(--shadow-md);
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-steps::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-badge {
                left: 8px !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .cases-grid, .reviews-grid, .solutions-grid {
                grid-template-columns: 1fr;
            }
            .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
        }