:root {
            --primary: #00b894;
            --primary-light: #e8f8f5;
            --primary-dark: #009473;
            --accent: #55efc4;
            --dark: #2d3748;
            --gray: #718096;
            --light-gray: #f7fafc;
            --white: #ffffff;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--dark);
            background-color: var(--light-gray);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

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

        section {
            padding: 80px 0;
            position: relative;
        }

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

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

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

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            color: var(--dark);
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-header p {
            color: var(--gray);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 184, 148, 0.3);
        }

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

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

        /* Navigation Header */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
            border-bottom: 1px solid rgba(0, 184, 148, 0.1);
        }

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

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

        .logo-area img {
            height: 40px;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary-dark);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            align-items: center;
        }

        .nav-link {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
        }

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

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

        /* Hero Section (No images) */
        .hero {
            padding: 140px 0 100px 0;
            background: linear-gradient(135deg, #e8f8f5 0%, #ffffff 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(85,239,196,0.2) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 50%;
            height: 70%;
            background: radial-gradient(circle, rgba(0,184,148,0.1) 0%, transparent 70%);
            z-index: 1;
        }

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

        .hero-tag {
            background-color: var(--white);
            border: 1px solid var(--accent);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .hero p.lead {
            font-size: 1.2rem;
            color: var(--gray);
            margin-bottom: 35px;
        }

        .hero-btns {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin-bottom: 40px;
        }

        /* Data Indicator Cards */
        .data-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
            z-index: 2;
        }

        .data-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
            text-align: center;
            transition: var(--transition);
        }

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

        .data-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 5px;
        }

        .data-label {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* Service Cards (AIGC Services) */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid rgba(0, 184, 148, 0.05);
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

        .service-card p {
            color: var(--gray);
            font-size: 0.95rem;
        }

        /* Production (One-stop creation & features) */
        .brand-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .brand-badge {
            background-color: var(--white);
            color: var(--dark);
            border: 1px solid #e2e8f0;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .brand-badge:hover {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

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

        .solution-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .solution-content {
            padding: 25px;
        }

        .solution-tag {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            display: block;
        }

        /* Workflow Steps */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-step {
            background-color: var(--white);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: var(--shadow);
            position: relative;
            z-index: 2;
        }

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

        /* Technical Standards */
        .standard-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .standard-text ul {
            list-style: none;
            margin-top: 20px;
        }

        .standard-text li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
        }

        .standard-text li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* Cases Grid */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .case-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }

        .case-body {
            padding: 20px;
        }

        .case-body h4 {
            margin-bottom: 10px;
        }

        /* Evaluation Table */
        .table-responsive {
            overflow-x: auto;
            background-color: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            padding: 20px;
        }

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

        .eval-table th, .eval-table td {
            padding: 15px 20px;
            border-bottom: 1px solid #edf2f7;
        }

        .eval-table th {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
        }

        .eval-highlight {
            font-weight: bold;
            color: var(--primary-dark);
            background-color: rgba(85, 239, 196, 0.1);
        }

        /* Token Price Section */
        .price-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .price-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid #edf2f7;
        }

        .price-card.featured {
            border: 2px solid var(--primary);
            position: relative;
        }

        .price-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: var(--white);
            padding: 2px 15px;
            border-radius: 20px;
            font-size: 0.8rem;
        }

        .price-amount {
            font-size: 2.2rem;
            color: var(--primary-dark);
            font-weight: bold;
            margin: 15px 0;
        }

        /* Training Section */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            display: flex;
            gap: 20px;
        }

        .training-num {
            font-size: 2.5rem;
            color: rgba(0, 184, 148, 0.2);
            font-weight: 800;
            line-height: 1;
        }

        /* FAQ Section */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            color: var(--gray);
            border-top: 0 solid #edf2f7;
        }

        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 500px;
            border-top-width: 1px;
        }

        .faq-icon::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 300;
        }

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

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

        .review-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
        }

        .review-text {
            font-style: italic;
            color: var(--gray);
            margin-bottom: 20px;
        }

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

        .review-meta h5 {
            font-weight: bold;
        }

        .review-meta span {
            font-size: 0.85rem;
            color: var(--primary-dark);
        }

        /* Form & Contact */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info {
            padding-right: 30px;
        }

        .contact-item {
            margin-bottom: 25px;
        }

        .contact-label {
            font-weight: bold;
            color: var(--primary-dark);
            margin-bottom: 5px;
        }

        .contact-form {
            background-color: var(--white);
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #cbd5e0;
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(85, 239, 196, 0.25);
        }

        /* Articles & Footer Links */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .article-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--accent);
            text-decoration: none;
            color: var(--dark);
            transition: var(--transition);
        }

        .article-card:hover {
            transform: scale(1.02);
            border-left-color: var(--primary);
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #a0aec0;
            padding: 60px 0 20px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

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

        .footer-links h5 {
            color: var(--white);
            margin-bottom: 20px;
        }

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

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

        .footer-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid #4a5568;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links a {
            color: #a0aec0;
            text-decoration: none;
            margin-right: 15px;
            font-size: 0.85rem;
        }

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

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

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

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

        .float-qr {
            position: absolute;
            right: 65px;
            bottom: 0;
            background-color: var(--white);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .float-qr img {
            width: 130px;
            height: 130px;
        }

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

        /* Responsive Styles */
        @media (max-width: 1024px) {
            .solution-grid, .flow-steps, .case-grid, .review-grid, .price-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-layout {
                grid-template-columns: 1fr;
            }
            .contact-info {
                padding-right: 0;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                padding: 20px;
                box-shadow: var(--shadow);
                border-top: 1px solid #edf2f7;
            }

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

            .nav-toggle {
                display: block;
            }

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

            .hero h1 {
                font-size: 2rem;
            }

            .solution-grid, .flow-steps, .case-grid, .review-grid, .price-list, .training-grid, .footer-grid {
                grid-template-columns: 1fr;
            }

            .standard-section {
                grid-template-columns: 1fr;
            }

            section {
                padding: 50px 0;
            }
        }