:root {
            --primary-pink: #ff7675;
            --primary-yellow: #ffeaa7;
            --primary-mint: #55efc4;
            --primary-cyan: #74b9ff;
            --primary-purple: #a29bfe;
            --dark-color: #2d3436;
            --light-bg: #fdfaf6;
            --card-shadow: 0 10px 30px rgba(116, 185, 255, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        /* Base Resets */
        * {
            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-color);
            background-color: var(--light-bg);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Vibrant Typography */
        h1, h2, h3, h4 {
            font-weight: 800;
            color: var(--dark-color);
            line-height: 1.3;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 10%;
            width: 80%;
            height: 8px;
            background: linear-gradient(90deg, var(--primary-pink), var(--primary-cyan));
            border-radius: 4px;
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.1rem;
            color: #636e72;
            margin-bottom: 3.5rem;
        }

        .tag-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-weight: bold;
            font-size: 0.85rem;
            text-transform: uppercase;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .bg-pink { background-color: var(--primary-pink); color: #fff; }
        .bg-yellow { background-color: var(--primary-yellow); color: var(--dark-color); }
        .bg-mint { background-color: var(--primary-mint); color: var(--dark-color); }
        .bg-cyan { background-color: var(--primary-cyan); color: #fff; }
        .bg-purple { background-color: var(--primary-purple); color: #fff; }

        /* Navigation Header */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(253, 250, 246, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 3px solid var(--dark-color);
            padding: 10px 0;
        }

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

        .logo-container {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .ai-page-logo {
            max-height: 45px;
            width: auto;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 900;
            letter-spacing: 1px;
        }

        nav ul {
            display: flex;
            list-style: none;
            align-items: center;
        }

        nav a {
            font-weight: 700;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 8px;
            transition: var(--transition);
        }

        nav a:hover {
            background-color: var(--primary-yellow);
            color: var(--dark-color);
            transform: translateY(-2px);
        }

        .btn-nav-action {
            background-color: var(--primary-pink);
            color: white !important;
            border: 2px solid var(--dark-color);
            box-shadow: 3px 3px 0px var(--dark-color);
            padding: 8px 18px !important;
        }
        .btn-nav-action:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--dark-color);
            background-color: var(--primary-pink);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 6px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark-color);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* Hero Area - NO IMAGES */
        .hero {
            padding: 100px 0 80px;
            background: radial-gradient(circle at 10% 20%, rgba(255, 118, 117, 0.1) 0%, rgba(116, 185, 255, 0.1) 90%);
            border-bottom: 3px solid var(--dark-color);
            position: relative;
            overflow: hidden;
        }

        .hero::before, .hero::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            z-index: 1;
            opacity: 0.8;
        }

        .hero::before {
            width: 300px;
            height: 300px;
            background-color: var(--primary-yellow);
            top: -100px;
            right: -100px;
            filter: blur(80px);
        }

        .hero::after {
            width: 400px;
            height: 400px;
            background-color: var(--primary-purple);
            bottom: -150px;
            left: -150px;
            filter: blur(100px);
        }

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

        .hero-badge {
            margin-bottom: 20px;
            border: 2px solid var(--dark-color);
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 25px;
            color: var(--dark-color);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .hero h1 span {
            background: linear-gradient(120deg, var(--primary-pink) 0%, var(--primary-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: #4f5b66;
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            font-size: 1.1rem;
            font-weight: 800;
            border-radius: 50px;
            border: 3px solid var(--dark-color);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--primary-mint);
            color: var(--dark-color);
            box-shadow: 4px 4px 0 var(--dark-color);
        }

        .btn-primary:hover {
            transform: translate(-3px, -3px);
            box-shadow: 7px 7px 0 var(--dark-color);
        }

        .btn-secondary {
            background-color: white;
            color: var(--dark-color);
            box-shadow: 4px 4px 0 var(--dark-color);
        }

        .btn-secondary:hover {
            transform: translate(-3px, -3px);
            box-shadow: 7px 7px 0 var(--dark-color);
            background-color: var(--primary-yellow);
        }

        /* Generic Section Styles */
        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--dark-color);
        }

        /* Metrics Data Cards */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }

        .metric-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(255, 118, 117, 0.25);
        }

        .metric-card.pink { border-top: 8px solid var(--primary-pink); }
        .metric-card.yellow { border-top: 8px solid var(--primary-yellow); }
        .metric-card.mint { border-top: 8px solid var(--primary-mint); }
        .metric-card.cyan { border-top: 8px solid var(--primary-cyan); }

        .metric-number {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--dark-color) 30%, #555 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-label {
            font-size: 1rem;
            font-weight: bold;
            color: #636e72;
        }

        /* About Us Section */
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .about-text p {
            font-size: 1.1rem;
            color: #4f5b66;
            margin-bottom: 25px;
            line-height: 1.8;
        }

        .about-points {
            list-style: none;
        }

        .about-points li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
            font-weight: bold;
        }

        .about-points li::before {
            content: '✦';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary-pink);
            font-size: 1.2rem;
        }

        .about-features {
            background-color: var(--primary-yellow);
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: 6px 6px 0 var(--dark-color);
        }

        .feature-item-small {
            margin-bottom: 20px;
        }
        .feature-item-small:last-child {
            margin-bottom: 0;
        }

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

        .platform-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 35px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .platform-card:hover {
            transform: translateY(-5px) rotate(1deg);
            box-shadow: 6px 6px 0 var(--dark-color);
        }

        .platform-card h3 {
            font-size: 1.5rem;
            margin: 15px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .platform-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            border: 2px solid var(--dark-color);
        }

        .platform-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .platform-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid var(--dark-color);
            background-color: #fff;
            font-weight: bold;
        }

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

        .step-card {
            background-color: #fff;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 30px;
            position: relative;
            box-shadow: var(--card-shadow);
        }

        .step-number {
            position: absolute;
            top: -20px;
            left: 20px;
            width: 45px;
            height: 45px;
            background-color: var(--primary-pink);
            color: #fff;
            border: 3px solid var(--dark-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 900;
        }

        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 12px;
            font-size: 1.3rem;
        }

        /* Solutions Area */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 40px;
        }

        .solution-card {
            background-color: #fff;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: translateY(-8px);
            box-shadow: 8px 8px 0 var(--dark-color);
        }

        .solution-header {
            padding: 25px;
            color: var(--dark-color);
            border-bottom: 3px solid var(--dark-color);
            font-size: 1.4rem;
            font-weight: bold;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-list {
            list-style: none;
            margin-bottom: 20px;
        }

        .solution-list li {
            padding: 8px 0;
            border-bottom: 1px dashed #ddd;
            font-weight: 500;
        }

        /* Network & Service Points */
        .network-section {
            background-color: #e2f9e1;
        }
        .network-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .network-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .network-point-card {
            background: white;
            border: 2px solid var(--dark-color);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 4px 4px 0 var(--dark-color);
        }
        .network-point-card h4 {
            color: var(--primary-pink);
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        /* Standards */
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .standard-card {
            background: #fff;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: left;
            position: relative;
        }
        .standard-card::before {
            content: "✓";
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 2rem;
            color: var(--primary-mint);
            font-weight: bold;
        }

        /* Cases & Gallery */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: scale(1.02);
        }

        .case-img-container {
            border-bottom: 3px solid var(--dark-color);
            position: relative;
            background: #fff;
        }

        .case-img-container img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .case-info {
            padding: 25px;
        }

        /* Evaluation Block */
        .evaluation-box {
            background: linear-gradient(135deg, var(--primary-yellow) 0%, #fff7d6 100%);
            border: 4px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 50px;
            box-shadow: 8px 8px 0 var(--dark-color);
        }

        .eval-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            border-bottom: 2px solid var(--dark-color);
            padding-bottom: 25px;
            margin-bottom: 30px;
        }

        .eval-rating {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .eval-score {
            font-size: 4rem;
            font-weight: 900;
            color: var(--dark-color);
        }

        .eval-stars {
            font-size: 2rem;
            color: #f1c40f;
        }

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

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

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--dark-color);
        }

        .eval-table th {
            background-color: var(--dark-color);
            color: white;
            font-weight: bold;
        }

        .eval-table td {
            background-color: white;
            font-weight: 500;
        }

        .eval-highlight {
            background-color: #fff2cc !important;
            font-weight: bold;
        }

        /* Token Pricing */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .token-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }
        .token-price {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary-pink);
            margin: 15px 0;
        }

        /* Training Sections */
        .training-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .training-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .training-card h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--primary-pink);
        }

        .course-list {
            list-style: none;
        }

        .course-list li {
            padding: 12px 0;
            border-bottom: 1px dashed #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .course-tag {
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 50px;
            background-color: var(--primary-mint);
            font-weight: bold;
        }

        /* Form Container */
        .form-section {
            background-color: #ffd6e8;
        }
        .form-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .form-info h3 {
            font-size: 2.2rem;
            margin-bottom: 20px;
        }
        .form-info p {
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .form-card {
            background-color: white;
            border: 4px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: 8px 8px 0 var(--dark-color);
        }

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

        .form-group label {
            display: block;
            font-weight: bold;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 18px;
            border: 2px solid var(--dark-color);
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            outline: none;
            background-color: #fafafa;
        }

        .form-control:focus {
            background-color: white;
            border-color: var(--primary-cyan);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232d3436' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 18px center;
            background-size: 16px;
        }

        /* FAQ Accordion */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 4px 4px 0 rgba(0,0,0,0.05);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 22px 30px;
            background: none;
            border: none;
            font-size: 1.15rem;
            font-weight: bold;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            outline: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.8rem;
            font-weight: normal;
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #fafafa;
        }

        .faq-answer-inner {
            padding: 0 30px 25px;
            font-size: 1rem;
            color: #4f5b66;
            line-height: 1.8;
            border-top: 1px dashed #ddd;
            padding-top: 20px;
        }

        /* Troubleshooting & Glossary */
        .trouble-glossary-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .trouble-box, .glossary-box {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 35px;
            box-shadow: var(--card-shadow);
        }
        .glossary-list dt {
            font-weight: bold;
            color: var(--primary-pink);
            margin-top: 15px;
        }
        .glossary-list dd {
            margin-bottom: 10px;
            color: #555;
            font-size: 0.95rem;
        }

        /* Review Cards */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .review-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .review-card::before {
            content: "“";
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 5rem;
            color: rgba(255, 118, 117, 0.15);
            font-family: Georgia, serif;
            line-height: 1;
        }

        .review-content {
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
            color: #4f5b66;
        }

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

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-yellow);
            border: 2px solid var(--dark-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .author-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }

        .author-info p {
            font-size: 0.8rem;
            color: #777;
        }

        /* Knowledge Base Articles */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .article-card {
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 25px;
            transition: var(--transition);
        }

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

        .article-card h4 {
            font-size: 1.15rem;
            margin-bottom: 12px;
        }

        .article-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: bold;
            color: var(--primary-pink);
            margin-top: 15px;
        }

        /* Contact Details & QR Section */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .contact-info-list {
            margin-top: 30px;
        }

        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-cyan);
            border: 2px solid var(--dark-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .qr-wrapper {
            display: flex;
            gap: 40px;
            justify-content: center;
            flex-wrap: wrap;
            background: #fff;
            border: 3px solid var(--dark-color);
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: 6px 6px 0 var(--dark-color);
        }

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

        .qr-box img {
            width: 150px;
            height: 150px;
            border: 2px solid var(--dark-color);
            border-radius: 8px;
            margin-bottom: 15px;
        }

        /* Footer & Friend Links */
        footer {
            background-color: var(--dark-color);
            color: #f7f9fc;
            padding: 60px 0 30px;
            border-top: 3px solid var(--dark-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 15px;
            color: white;
        }

        .friend-links-box {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links-box h4 {
            color: white;
            margin-bottom: 15px;
        }

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

        .friend-links a {
            color: #b2bec3;
            transition: var(--transition);
            font-size: 0.9rem;
        }

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

        .copyright-bar {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #b2bec3;
            font-size: 0.9rem;
        }

        /* Float Sidebar WeChat Service */
        .float-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--primary-mint);
            border: 3px solid var(--dark-color);
            box-shadow: 3px 3px 0 var(--dark-color);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-weight: bold;
            font-size: 1.5rem;
            position: relative;
        }

        .float-btn:hover {
            transform: translate(-3px, -3px);
            box-shadow: 6px 6px 0 var(--dark-color);
        }

        .float-qr-hover {
            position: absolute;
            bottom: 75px;
            right: 0;
            background-color: white;
            border: 3px solid var(--dark-color);
            border-radius: 12px;
            padding: 15px;
            display: none;
            box-shadow: var(--card-shadow);
            width: 180px;
            text-align: center;
        }

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

        .float-qr-hover img {
            width: 100%;
            height: auto;
            border-radius: 6px;
            margin-bottom: 5px;
        }

        .float-qr-hover span {
            font-size: 0.8rem;
            color: var(--dark-color);
            font-weight: bold;
        }

        /* Animations */
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .about-content, .training-container, .form-layout, .contact-layout, .network-layout, .trouble-glossary-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--light-bg);
                border-bottom: 3px solid var(--dark-color);
                padding: 20px;
                gap: 15px;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
        }

        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 2rem;
            }
            .qr-wrapper {
                flex-direction: column;
            }
        }