/* CSS Reset & Variables */
        :root {
            --primary: #E91E63;       /* 桃红 */
            --primary-hover: #D81B60;
            --secondary: #9C27B0;     /* 艳紫 */
            --dark: #2C0E37;          /* 暗紫黑 */
            --light-bg: #FFF5F7;      /* 浅粉白 */
            --card-bg: #FFFFFF;
            --text-main: #333333;
            --text-muted: #666666;
            --border-color: #F8BBD0;  /* 浅粉边框 */
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--light-bg);
        }

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

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

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

        h2 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 10px;
            position: relative;
        }

        h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 12px auto 0;
            border-radius: 2px;
        }

        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.05rem;
        }

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

        a:hover {
            color: var(--secondary);
        }

        /* Header & Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(233, 30, 99, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

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

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

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

        .brand-name {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            font-size: 0.95rem;
            color: var(--dark);
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
        }

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

        .btn-nav-action {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white !important;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(233, 30, 99, 0.2);
        }

        .btn-nav-action:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(233, 30, 99, 0.3);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 6px;
        }

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

        /* Hero Section (No Images) */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, rgba(255, 182, 193, 0.3), transparent), 
                        radial-gradient(circle at 10% 80%, rgba(156, 39, 176, 0.15), transparent),
                        linear-gradient(180deg, #FFFFFF, var(--light-bg));
            padding: 100px 0 80px;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-tag {
            display: inline-block;
            background-color: rgba(233, 30, 99, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(233, 30, 99, 0.2);
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--dark), var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

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

        .btn-main {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 14px 32px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 30px;
            box-shadow: 0 8px 20px rgba(233, 30, 99, 0.3);
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(233, 30, 99, 0.4);
            color: white;
        }

        .btn-secondary {
            background-color: white;
            color: var(--dark);
            border: 2px solid var(--border-color);
            padding: 12px 30px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: var(--light-bg);
            border-color: var(--primary);
        }

        /* Stats Cards in Hero */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: white;
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(233, 30, 99, 0.05);
            border: 1px solid rgba(233, 30, 99, 0.1);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(233, 30, 99, 0.1);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 5px;
        }

        /* Section Global Settings */
        section {
            padding: 80px 0;
        }

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

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

        /* Platform Introduction */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-content {
            padding-right: 20px;
        }

        .intro-title {
            font-size: 2.2rem;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .intro-text {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .intro-features {
            list-style: none;
        }

        .intro-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-weight: 500;
            color: var(--dark);
        }

        .intro-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
        }

        .intro-media-wrapper {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(156, 39, 176, 0.15);
            border: 4px solid white;
        }

        .intro-media-wrapper img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* AIGC Services Cards */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: white;
            border-radius: 16px;
            padding: 35px 25px;
            border: 1px solid rgba(233, 30, 99, 0.08);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            text-align: center;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(233, 30, 99, 0.12);
            border-color: var(--border-color);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--light-bg), rgba(248, 187, 208, 0.4));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary);
            font-size: 1.8rem;
            font-weight: bold;
        }

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

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

        /* Model Brand Wall */
        .model-marquee-wrapper {
            margin-top: 40px;
            overflow: hidden;
            background: white;
            padding: 25px 0;
            border-radius: 12px;
            border: 1px dashed var(--border-color);
        }

        .model-marquee {
            display: flex;
            gap: 40px;
            animation: marquee 30s linear infinite;
            width: max-content;
        }

        .model-item {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            background-color: var(--light-bg);
            padding: 8px 18px;
            border-radius: 20px;
            white-space: nowrap;
            border: 1px solid rgba(233, 30, 99, 0.1);
        }

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

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

        .scenario-card {
            background: white;
            border-radius: 12px;
            padding: 25px 20px;
            border: 1px solid rgba(233, 30, 99, 0.05);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
        }

        .scenario-card:hover {
            transform: scale(1.03);
            box-shadow: 0 10px 25px rgba(233, 30, 99, 0.1);
        }

        .scenario-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .scenario-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .solution-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            box-shadow: 0 8px 25px rgba(0,0,0,0.03);
            border: 1px solid rgba(233, 30, 99, 0.06);
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 35px rgba(233, 30, 99, 0.1);
        }

        .solution-img-box {
            width: 40%;
            min-height: 200px;
            background-color: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .solution-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .solution-info {
            width: 60%;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .solution-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .solution-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        /* Timeline Flow Section */
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: white;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -10px;
        }

        .timeline-content {
            padding: 20px 30px;
            background-color: white;
            position: relative;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            border: 1px solid rgba(233, 30, 99, 0.08);
        }

        .timeline-content h3 {
            font-size: 1.15rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* Comparison Board */
        .comparison-table-wrapper {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(156, 39, 176, 0.08);
            border: 1px solid var(--border-color);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 18px 22px;
            border-bottom: 1px solid rgba(233, 30, 99, 0.1);
        }

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

        .comparison-table tr:hover {
            background-color: rgba(255, 245, 247, 0.5);
        }

        .badge-pro {
            background-color: var(--primary);
            color: white;
            padding: 2px 8px;
            border-radius: 10px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .rating-box {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 30px;
            border-radius: 16px;
            text-align: center;
            margin-bottom: 40px;
            box-shadow: 0 10px 25px rgba(233, 30, 99, 0.2);
        }

        .rating-title {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .rating-stars {
            font-size: 2.2rem;
            color: #FFD700;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 950;
        }

        /* Token Price Box */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background: white;
            border-radius: 12px;
            padding: 25px;
            border: 1px solid rgba(233, 30, 99, 0.1);
            text-align: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
        }

        .token-model-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 800;
            margin-bottom: 15px;
        }

        .token-features {
            list-style: none;
            font-size: 0.9rem;
            color: var(--text-muted);
            text-align: left;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px dashed rgba(233, 30, 99, 0.1);
        }

        .token-features li {
            margin-bottom: 8px;
            padding-left: 18px;
            position: relative;
        }

        .token-features li::before {
            content: '●';
            color: var(--primary);
            position: absolute;
            left: 0;
            font-size: 0.8rem;
        }

        /* Training Program */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: white;
            border-radius: 12px;
            padding: 20px 15px;
            text-align: center;
            border: 1px solid rgba(233, 30, 99, 0.08);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 8px 20px rgba(233, 30, 99, 0.08);
        }

        .training-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        .training-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .training-badge {
            display: inline-block;
            font-size: 0.75rem;
            background-color: var(--light-bg);
            color: var(--secondary);
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 600;
        }

        /* Testimonials Section */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .testimonial-card {
            background: white;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.02);
            border: 1px solid rgba(233, 30, 99, 0.06);
            position: relative;
        }

        .testimonial-content {
            font-style: italic;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            position: relative;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Knowledge Base / Articles */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .article-card {
            background: white;
            border-radius: 10px;
            padding: 20px;
            border: 1px solid rgba(233, 30, 99, 0.08);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .article-tag {
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .article-title {
            font-size: 0.95rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .article-link {
            font-size: 0.85rem;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            color: var(--primary);
        }

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

        .faq-item {
            background: white;
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
            border: 1px solid rgba(233, 30, 99, 0.06);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 25px;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question:hover {
            background-color: rgba(255, 245, 247, 0.5);
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            font-weight: 400;
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 20px;
        }

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

        .glossary-card {
            background: white;
            padding: 20px;
            border-radius: 8px;
            border: 1px solid rgba(233, 30, 99, 0.05);
        }

        .glossary-word {
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .glossary-def {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Lead Generation Form */
        .form-section-wrapper {
            background: linear-gradient(135deg, #FFF0F3, #FFF5F7);
            border-radius: 20px;
            padding: 50px 40px;
            border: 1px solid var(--border-color);
            max-width: 1000px;
            margin: 0 auto;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .form-box h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

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

        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: white;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
        }

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

        .contact-info-list {
            list-style: none;
            margin-bottom: 30px;
        }

        .contact-info-list li {
            margin-bottom: 15px;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-info-list strong {
            color: var(--dark);
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .qr-item {
            background: white;
            padding: 15px;
            border-radius: 12px;
            border: 1px solid rgba(233, 30, 99, 0.1);
            text-align: center;
            width: 140px;
        }

        .qr-item img {
            width: 110px;
            height: 110px;
            object-fit: cover;
            margin-bottom: 8px;
        }

        .qr-item span {
            font-size: 0.75rem;
            font-weight: bold;
            color: var(--text-muted);
            display: block;
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #F8BBD0;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-desc h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

        .footer-col h5 {
            color: white;
            font-size: 1rem;
            margin-bottom: 20px;
            position: relative;
        }

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

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

        .footer-links a {
            color: #F8BBD0;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }

        .friend-links-area {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links-area span {
            font-weight: bold;
            color: white;
        }

        .friend-links-area a {
            color: #F8BBD0;
            font-size: 0.85rem;
        }

        .friend-links-area a:hover {
            color: white;
        }

        .copyright-area {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(248, 187, 208, 0.6);
        }

        /* Floating Sidebar Customer Service */
        .floating-kefu {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kefu-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(233, 30, 99, 0.3);
            cursor: pointer;
            font-weight: bold;
            font-size: 0.8rem;
            text-align: center;
            line-height: 1.2;
            transition: var(--transition);
            position: relative;
        }

        .kefu-btn:hover {
            background-color: var(--secondary);
            transform: scale(1.05);
        }

        .kefu-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
            padding: 15px;
            display: none;
            width: 160px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .kefu-btn:hover .kefu-popover {
            display: block;
        }

        .kefu-popover img {
            width: 130px;
            height: 130px;
            object-fit: cover;
            border-radius: 4px;
        }

        .back-to-top {
            width: 50px;
            height: 50px;
            background-color: var(--dark);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .back-to-top:hover {
            background-color: var(--primary);
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: white;
                box-shadow: 0 8px 15px rgba(0,0,0,0.1);
                padding: 20px;
                gap: 15px;
            }

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

            .menu-toggle {
                display: flex;
            }

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

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 45px;
                padding-right: 0;
            }

            .timeline-item::after {
                left: 10px;
                right: auto;
            }

            .right {
                left: 0;
            }

            .contact-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

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

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

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .glossary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }