/* Base Variables & Reset */
        :root {
            --primary-color: #FF5E13; /* 炽橙 */
            --primary-gradient: linear-gradient(135deg, #FF8C00 0%, #FF2E00 100%);
            --secondary-color: #FF2E00;
            --dark-color: #1E1E24;
            --text-main: #333333;
            --text-muted: #666666;
            --bg-light: #FAF9F6; /* 暖白/浅灰底 */
            --bg-white: #FFFFFF;
            --border-color: #EAEAEA;
            --container-max: 1200px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

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

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        section:nth-child(even) {
            background-color: var(--bg-white);
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            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 {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition-smooth);
            cursor: pointer;
            border: none;
            outline: none;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #FFFFFF;
            box-shadow: 0 4px 15px rgba(255, 94, 19, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 94, 19, 0.4);
        }

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

        .btn-outline:hover {
            background: var(--primary-gradient);
            color: #FFFFFF;
            border-color: transparent;
            transform: translateY(-2px);
        }

        /* Header & Navigation */
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            width: 100%;
        }

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

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

        .ai-page-logo {
            height: 40px;
            display: block;
        }

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

        .nav-links {
            display: flex;
            list-style: none;
            gap: 20px;
            margin: 0;
            padding: 0;
        }

        .nav-links a, .ai-page-home-link {
            text-decoration: none;
            color: var(--text-main);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition-smooth);
        }

        .nav-links a:hover, .ai-page-home-link:hover {
            color: var(--primary-color);
        }

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

        .menu-toggle span {
            width: 25px;
            height: 30px;
            height: 3px;
            background-color: var(--dark-color);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

        /* Hero Section (No Images allowed here) */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(255, 94, 19, 0.05) 0%, rgba(255, 255, 255, 1) 90%);
            padding: 100px 0 80px 0;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        /* Background graphics utilizing pure CSS shapes */
        .hero-decoration-1 {
            position: absolute;
            top: 20%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,94,19,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-decoration-2 {
            position: absolute;
            bottom: 10%;
            right: -5%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,46,0,0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 94, 19, 0.1);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--dark-color);
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero-content p {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* Data Metrics Grid */
        .data-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .metric-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            transition: var(--transition-smooth);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 94, 19, 0.3);
            box-shadow: 0 8px 25px rgba(255, 94, 19, 0.1);
        }

        .metric-card .number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

        .metric-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* General Card Grid Layouts */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

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

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        /* About Section */
        .about-wrapper {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .about-text {
            flex: 1;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--dark-color);
            margin-bottom: 15px;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .about-features {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }

        .about-features li {
            position: relative;
            padding-left: 25px;
            color: var(--text-main);
            font-weight: 500;
        }

        .about-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary-color);
            font-weight: bold;
        }

        .about-highlight-box {
            flex: 1;
            background: linear-gradient(135deg, rgba(255, 94, 19, 0.05) 0%, rgba(255, 46, 0, 0.05) 100%);
            border: 2px dashed rgba(255, 94, 19, 0.3);
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }

        .about-highlight-box h4 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 10px;
        }

        /* Service Cards */
        .service-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: rgba(255, 94, 19, 0.4);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }

        .service-card .icon-box {
            width: 60px;
            height: 60px;
            background: rgba(255, 94, 19, 0.1);
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 1.8rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--dark-color);
        }

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

        /* Platform Tag Cloud */
        .tag-cloud-wrapper {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            margin-top: 30px;
            text-align: center;
        }

        .tag-cloud-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--dark-color);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .tag {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-main);
            transition: var(--transition-smooth);
        }

        .tag:hover {
            background: var(--primary-gradient);
            color: #FFFFFF;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* Step Timeline */
        .steps-container {
            position: relative;
            margin-top: 40px;
        }

        .steps-container::before {
            content: '';
            position: absolute;
            top: 50px;
            left: 5%;
            right: 5%;
            height: 4px;
            background: var(--border-color);
            z-index: 1;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .step-item {
            text-align: center;
            background: var(--bg-white);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .step-number {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            font-size: 1.5rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 10px rgba(255, 94, 19, 0.3);
        }

        .step-item h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--dark-color);
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Solutions Layout */
        .solution-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition-smooth);
        }

        .solution-card:hover {
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border-color: var(--primary-color);
        }

        .solution-card h3 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
        }

        .solution-card ul {
            list-style: none;
        }

        .solution-card ul li {
            padding: 8px 0;
            font-size: 0.95rem;
            border-bottom: 1px dashed var(--border-color);
        }

        .solution-card ul li:last-child {
            border-bottom: none;
        }

        /* Network & Flow Standard */
        .network-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
            margin-top: 30px;
        }

        .network-node {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            padding: 8px 24px;
            font-size: 0.95rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .network-node::before {
            content: '';
            width: 8px;
            height: 8px;
            background-color: #2ECC71;
            border-radius: 50%;
        }

        /* Media / Image Cards */
        .media-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .media-card {
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .media-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

        .media-img-container {
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #ECECEC;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .media-card-square .media-img-container {
            aspect-ratio: 1 / 1;
        }

        .media-info {
            padding: 20px;
        }

        .media-info h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--dark-color);
        }

        .media-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Comparison Table & Rating */
        .rating-box {
            background: var(--primary-gradient);
            color: white;
            border-radius: 16px;
            padding: 40px;
            text-align: center;
            box-shadow: 0 8px 30px rgba(255, 94, 19, 0.2);
        }

        .rating-score {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-stars {
            font-size: 1.8rem;
            color: #FFD700;
            margin-bottom: 15px;
        }

        .rating-text {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

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

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

        th {
            background-color: var(--bg-light);
            color: var(--dark-color);
            font-weight: 600;
        }

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

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

        .highlight-td {
            font-weight: 600;
            color: var(--primary-color);
            background-color: rgba(255, 94, 19, 0.02);
        }

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

        .price-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            text-align: center;
            transition: var(--transition-smooth);
        }

        .price-card.featured {
            border: 2px solid var(--primary-color);
            position: relative;
            transform: scale(1.03);
        }

        .price-card.featured::after {
            content: '全网推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary-gradient);
            color: white;
            font-size: 0.75rem;
            font-weight: bold;
            padding: 3px 12px;
            border-radius: 20px;
        }

        .price-value {
            font-size: 1.8rem;
            color: var(--dark-color);
            margin: 15px 0;
            font-weight: bold;
        }

        .price-value span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        /* Form Layout */
        .form-wrapper {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            max-width: 800px;
            margin: 0 auto;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group-full {
            grid-column: span 2;
        }

        label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--dark-color);
        }

        input, select, textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            color: var(--text-main);
            background-color: var(--bg-light);
            outline: none;
            transition: var(--transition-smooth);
        }

        input:focus, select:focus, textarea:focus {
            border-color: var(--primary-color);
            background-color: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(255, 94, 19, 0.1);
        }

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

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: var(--transition-smooth);
            color: var(--primary-color);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            padding-bottom: 18px;
        }

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

        /* Testimonials / User Comments */
        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            transition: var(--transition-smooth);
        }

        .testimonial-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border-color: rgba(255, 94, 19, 0.2);
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .user-meta h4 {
            font-size: 0.95rem;
            color: var(--dark-color);
            margin: 0;
        }

        .user-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--text-main);
            line-height: 1.5;
        }

        /* Article List & Footer Links */
        .articles-wrapper {
            margin-top: 30px;
        }

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

        .articles-list li {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 15px 20px;
            border-radius: 8px;
            transition: var(--transition-smooth);
        }

        .articles-list li:hover {
            border-color: var(--primary-color);
            transform: translateX(4px);
        }

        .articles-list a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

        .articles-list .date {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Contact Details & QR Code */
        .contact-info-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            margin-top: 40px;
        }

        .contact-details {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

        .contact-item .icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 94, 19, 0.1);
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .contact-item h5 {
            font-size: 0.95rem;
            color: var(--dark-color);
            margin-bottom: 4px;
        }

        .contact-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .qrcode-container {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
        }

        .qrcode-container img {
            width: 90px;
            height: 90px;
            border-radius: 4px;
            object-fit: cover;
        }

        /* Footer Styles */
        footer {
            background-color: var(--dark-color);
            color: #FFFFFF;
            padding: 60px 0 30px;
            border-top: 5px solid var(--primary-color);
        }

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

        .footer-brand p {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-top: 15px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            display: block;
            width: 30px;
            height: 2px;
            background-color: var(--primary-color);
            margin-top: 8px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition-smooth);
        }

        .footer-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
        }

        .friend-links {
            margin-bottom: 15px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .friend-links a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
            transition: var(--transition-smooth);
        }

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

        /* Floating Sidebar Customer Service */
        .floating-sidebar {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary-gradient);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            cursor: pointer;
            text-decoration: none;
            transition: var(--transition-smooth);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.05);
        }

        .float-btn .tooltip-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: white;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-btn .tooltip-qr img {
            width: 120px;
            height: 120px;
            display: block;
            margin-bottom: 5px;
        }

        .float-btn .tooltip-qr span {
            color: var(--text-main);
            font-size: 0.75rem;
            font-weight: bold;
        }

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

        /* Responsive Design */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4, .token-price-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .steps-container::before {
                display: none;
            }
            .about-wrapper {
                flex-direction: column;
            }
            .contact-info-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 50px 0;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 300px;
            }
            .data-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .grid-3, .grid-2, .grid-4, .media-grid, .token-price-grid, .steps-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
            .price-card.featured {
                transform: scale(1);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .articles-list {
                grid-template-columns: 1fr;
            }
        }