/* CSS Variables - 艳色潮流风 */
        :root {
            --primary-gradient: linear-gradient(135deg, #6C5CE7 0%, #FF7675 50%, #00CEC9 100%);
            --secondary-gradient: linear-gradient(90deg, #FF7675 0%, #6C5CE7 100%);
            --dark-color: #2D3436;
            --mid-color: #636E72;
            --light-bg: #FAF9FE;
            --card-bg: #FFFFFF;
            --border-color: #E2E8F0;
            --accent-pink: #FF7675;
            --accent-purple: #6C5CE7;
            --accent-teal: #00CEC9;
            --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --max-width: 1200px;
        }

        /* Reset & Base Styles */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            background-color: var(--light-bg);
            color: var(--dark-color);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        a {
            color: var(--accent-purple);
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        a:hover {
            color: var(--accent-pink);
        }

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

        /* Layout Container */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Custom Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition-smooth);
            border: none;
            outline: none;
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2);
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #FFFFFF;
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(135deg, #FF7675 0%, #00CEC9 50%, #6C5CE7 100%);
            border-radius: 50px;
            opacity: 0;
            z-index: -1;
            transition: var(--transition-smooth);
        }

        .btn-primary:hover::before {
            opacity: 1;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 118, 117, 0.4);
            color: #FFFFFF;
        }

        .btn-secondary {
            background: #FFFFFF;
            color: var(--dark-color);
            border: 2px solid var(--accent-purple);
        }

        .btn-secondary:hover {
            background: var(--accent-purple);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(108, 92, 231, 0.25);
        }

        /* Typography & Header styles */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark-color);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--mid-color);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Header Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

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

        .nav-links {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        .nav-links a {
            color: var(--dark-color);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-links a:hover {
            color: var(--accent-purple);
            background-color: rgba(108, 92, 231, 0.05);
        }

        /* Hero Section (No Image, Neon Colors) */
        .hero {
            position: relative;
            padding: 120px 0 100px;
            background-color: #FFFFFF;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.1) 0%, rgba(255, 118, 117, 0.05) 50%, rgba(0, 206, 201, 0) 100%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -300px;
            left: -200px;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(0, 206, 201, 0.08) 0%, rgba(108, 92, 231, 0.03) 60%, rgba(255, 255, 255, 0) 100%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(108, 92, 231, 0.1);
            color: var(--accent-purple);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 25px;
            border: 1px solid rgba(108, 92, 231, 0.2);
        }

        /* H1 Constraint: Under 20 chars */
        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 25px;
            color: var(--dark-color);
        }

        .hero h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--mid-color);
            margin-bottom: 40px;
            line-height: 1.8;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .model-scroller {
            margin-top: 60px;
            overflow: hidden;
            white-space: nowrap;
            position: relative;
            padding: 15px 0;
            border-top: 1px dashed var(--border-color);
            border-bottom: 1px dashed var(--border-color);
        }

        .model-list {
            display: inline-block;
            animation: scroll-left 30s linear infinite;
        }

        .model-tag {
            display: inline-block;
            padding: 8px 18px;
            margin: 0 10px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: var(--transition-smooth);
        }

        .model-tag:hover {
            border-color: var(--accent-pink);
            transform: translateY(-2px);
        }

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

        /* General Section Layout */
        section {
            padding: 90px 0;
            position: relative;
            z-index: 10;
        }

        .section-white {
            background-color: #FFFFFF;
        }

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

        /* About Section */
        .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(--dark-color);
        }

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

        /* Feature Cards Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .feature-card {
            background-color: var(--card-bg);
            border-radius: 20px;
            padding: 40px 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.03);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 4px; height: 100%;
            background: var(--primary-gradient);
            opacity: 0;
            transition: var(--transition-smooth);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(108, 92, 231, 0.12);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(108, 92, 231, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            font-size: 28px;
        }

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

        .feature-card p {
            color: var(--mid-color);
            font-size: 15px;
            line-height: 1.6;
        }

        /* Process Steps */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
        }

        .process-step {
            text-align: center;
            background: #FFFFFF;
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .step-num {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: -50px auto 20px;
            box-shadow: 0 4px 10px rgba(108, 92, 231, 0.3);
        }

        .process-step h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark-color);
        }

        .process-step p {
            font-size: 14px;
            color: var(--mid-color);
        }

        /* Comparison Table Section */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 16px;
            box-shadow: 0 15px 40px rgba(0,0,0,0.04);
            background: #FFFFFF;
            border: 1px solid var(--border-color);
        }

        table.comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 20px 25px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: rgba(108, 92, 231, 0.05);
            font-weight: 700;
            color: var(--dark-color);
        }

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

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

        .tag-highlight {
            background: var(--secondary-gradient);
            color: #FFFFFF;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
        }

        /* Showcase / Gallery Grid */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .showcase-item {
            background: #FFFFFF;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 10px 35px rgba(0,0,0,0.04);
            border: 1px solid var(--border-color);
        }

        .showcase-img-container {
            position: relative;
            background: var(--light-bg);
            aspect-ratio: 16/10;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .showcase-item:hover img {
            transform: scale(1.05);
        }

        .showcase-body {
            padding: 25px;
        }

        .showcase-body h4 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark-color);
        }

        .showcase-body p {
            color: var(--mid-color);
            font-size: 14px;
        }

        /* Token Price Comparison Area */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 25px;
        }

        .price-card {
            background: #FFFFFF;
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
        }

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

        .price-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 15px; right: 15px;
            background: var(--accent-pink);
            color: white;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 700;
        }

        .price-card h4 {
            font-size: 20px;
            margin-bottom: 15px;
        }

        .price-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-purple);
            margin-bottom: 20px;
        }

        .price-value span {
            font-size: 14px;
            color: var(--mid-color);
            font-weight: 400;
        }

        .price-list {
            list-style: none;
            text-align: left;
            margin-bottom: 25px;
            font-size: 14px;
            color: var(--mid-color);
        }

        .price-list li {
            margin-bottom: 8px;
            position: relative;
            padding-left: 20px;
        }

        .price-list li::before {
            content: '✓';
            color: var(--accent-teal);
            position: absolute;
            left: 0;
        }

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

        .form-card {
            background: #FFFFFF;
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 15px 45px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
        }

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

        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--dark-color);
        }

        .form-control {
            width: 100%;
            padding: 14px 18px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: var(--light-bg);
            font-size: 14px;
            outline: none;
            transition: var(--transition-smooth);
        }

        .form-control:focus {
            border-color: var(--accent-purple);
            background-color: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
        }

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

        .info-block {
            margin-bottom: 30px;
        }

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

        .info-block p {
            color: var(--mid-color);
        }

        .kefu-qrcode {
            margin-top: 20px;
            background: #FFFFFF;
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            display: inline-block;
            text-align: center;
        }

        .kefu-qrcode img {
            width: 130px;
            height: 130px;
            margin: 0 auto 10px;
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

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

        .faq-header {
            padding: 22px 30px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            color: var(--dark-color);
            transition: var(--transition-smooth);
        }

        .faq-header:hover {
            background-color: rgba(108, 92, 231, 0.02);
            color: var(--accent-purple);
        }

        .faq-icon {
            font-size: 20px;
            font-weight: 300;
            transition: transform 0.3s;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 30px;
            color: var(--mid-color);
            font-size: 15px;
        }

        .faq-item.active .faq-body {
            padding-bottom: 22px;
        }

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

        /* Client Testimonials */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .review-card {
            background: #FFFFFF;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 20px rgba(0,0,0,0.02);
        }

        .review-rating {
            color: #FFD700;
            font-size: 18px;
            margin-bottom: 15px;
        }

        .review-text {
            font-size: 14px;
            color: var(--mid-color);
            margin-bottom: 20px;
            line-height: 1.6;
        }

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

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 18px;
        }

        .author-info h5 {
            font-size: 15px;
            color: var(--dark-color);
        }

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

        /* Article List / Blog */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .article-card {
            background: #FFFFFF;
            border-radius: 16px;
            padding: 25px;
            border: 1px solid var(--border-color);
            transition: var(--transition-smooth);
        }

        .article-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-purple);
        }

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

        .article-card h4 {
            font-size: 18px;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .article-card h4 a {
            color: var(--dark-color);
        }

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

        .article-card p {
            font-size: 14px;
            color: var(--mid-color);
        }

        /* Footer */
        footer {
            background-color: #1E272E;
            color: #A4B0BE;
            padding: 60px 0 30px;
            border-top: 5px solid var(--accent-purple);
        }

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

        .footer-col h5 {
            color: #FFFFFF;
            font-size: 16px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h5::after {
            content: '';
            position: absolute;
            left: 0; bottom: 0;
            width: 30px; height: 2px;
            background: var(--accent-pink);
        }

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

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

        .footer-col ul li a {
            color: #A4B0BE;
            font-size: 14px;
        }

        .footer-col ul li a:hover {
            color: #FFFFFF;
            padding-left: 5px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
            margin-top: 15px;
        }

        .friend-links a {
            color: #A4B0BE;
            font-size: 13px;
        }

        .friend-links a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            border-top: 1px solid #2F3542;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        .footer-socials {
            display: flex;
            gap: 15px;
        }

        .social-item {
            color: #A4B0BE;
            font-size: 14px;
        }

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

        .float-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
            cursor: pointer;
            transition: var(--transition-smooth);
            position: relative;
        }

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

        .float-btn .tooltip {
            position: absolute;
            right: 70px;
            background: #FFFFFF;
            color: var(--dark-color);
            padding: 10px 15px;
            border-radius: 8px;
            font-size: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition-smooth);
            border: 1px solid var(--border-color);
        }

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

        .float-btn .qrcode-hover {
            position: absolute;
            right: 70px;
            bottom: 0;
            background: #FFFFFF;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition-smooth);
            width: 160px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .float-btn .qrcode-hover img {
            width: 130px;
            height: 130px;
            margin-bottom: 5px;
        }

        .float-btn .qrcode-hover span {
            font-size: 11px;
            color: var(--dark-color);
            display: block;
        }

        .float-btn:hover .qrcode-hover {
            opacity: 1;
        }

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

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

        /* Responsive Design */
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .contact-layout {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: #FFFFFF;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

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

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

            .hero-cta {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }

            .btn {
                width: 100%;
                max-width: 300px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }