:root {
            --primary-color: #FFD200; /* 耀眼鲜黄 */
            --primary-hover: #E6BD00;
            --dark-color: #121212;
            --dark-light: #1E1E1E;
            --light-bg: #F8F9FA;
            --white: #FFFFFF;
            --text-dark: #2D3748;
            --text-muted: #718096;
            --border-color: #E2E8F0;
            --accent-color: #FF5A5F;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 2px solid var(--primary-color);
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .logo-text {
            color: var(--white);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--primary-color);
        }

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

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

        .nav-menu a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary-color);
            background-color: rgba(255, 210, 0, 0.1);
        }

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-nav {
            background-color: var(--primary-color);
            color: var(--dark-color);
            padding: 8px 16px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .btn-nav:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
        }

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

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

        /* 首屏 Hero Section (无图片) */
        .hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: linear-gradient(135deg, var(--dark-color) 0%, #202020 100%);
            color: var(--white);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 210, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-badge {
            background-color: rgba(255, 210, 0, 0.1);
            border: 1px solid var(--primary-color);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-title span {
            color: var(--primary-color);
            background: linear-gradient(90deg, var(--primary-color), #FFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-description {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 800px;
            margin: 0 auto 35px;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background-color: var(--primary-color);
            color: var(--dark-color);
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid var(--primary-color);
            box-shadow: 0 4px 15px rgba(255, 210, 0, 0.3);
        }

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

        .btn-secondary {
            background-color: transparent;
            color: var(--white);
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--white);
            transform: translateY(-2px);
        }

        /* 核心优势亮点 */
        .hero-highlights {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 50px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 40px;
        }

        .highlight-item {
            padding: 15px;
        }

        .highlight-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            margin-bottom: 5px;
        }

        .highlight-text {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
        }

        /* 通用区块样式 */
        section {
            padding: 80px 0;
        }

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

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

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

        .section-subtitle {
            color: var(--primary-hover);
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            display: block;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

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

        .section-description {
            max-width: 600px;
            margin: 15px auto 0;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .section-dark .section-description {
            color: rgba(255, 255, 255, 0.6);
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .about-content p {
            margin-bottom: 20px;
            color: var(--text-muted);
        }

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

        .about-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary-hover);
            font-weight: 900;
        }

        .about-media {
            border: 5px solid var(--primary-color);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }

        .about-media img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .about-media:hover img {
            transform: scale(1.03);
        }

        /* 全平台AIGC服务 / 一站式制作 */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

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

        .card-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--primary-color);
            transform: scaleY(0);
            transform-origin: bottom;
            transition: var(--transition);
        }

        .card-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        .card-item:hover::before {
            transform: scaleY(1);
        }

        .card-icon {
            font-size: 2rem;
            margin-bottom: 20px;
            background-color: rgba(255, 210, 0, 0.1);
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--dark-color);
        }

        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* 标签组展示 */
        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .tag-pill {
            background-color: rgba(255, 210, 0, 0.1);
            color: var(--dark-color);
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 全行业解决方案 & 服务网络 */
        .solutions-tabs {
            margin-top: 30px;
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .network-info h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

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

        .network-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
        }

        .network-list span {
            font-weight: 600;
        }

        /* 标准化流程 & 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            width: 2px;
            height: 100%;
            background-color: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding: 0 30px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: var(--dark-color);
            position: absolute;
            top: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            box-shadow: 0 0 0 4px var(--white);
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -20px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -20px;
        }

        .timeline-content {
            background-color: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }

        .timeline-content h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            font-weight: 700;
        }

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

        /* 对比评测 */
        .review-panel {
            background: linear-gradient(135deg, var(--dark-color) 0%, #2a2a2a 100%);
            color: var(--white);
            border-radius: 16px;
            padding: 40px;
            margin-bottom: 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            border: 2px solid var(--primary-color);
        }

        .review-score-area {
            text-align: center;
            flex: 1;
            min-width: 200px;
        }

        .review-score-big {
            font-size: 4rem;
            font-weight: 900;
            color: var(--primary-color);
            line-height: 1;
        }

        .review-stars {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin: 10px 0;
        }

        .review-desc {
            font-size: 0.95rem;
            opacity: 0.8;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
            background: var(--white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

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

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

        .comparison-table tr:nth-child(even) {
            background-color: var(--light-bg);
        }

        .comparison-table td strong {
            color: var(--primary-hover);
        }

        /* 价格比价参考 */
        .pricing-section {
            background-color: var(--white);
        }

        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .price-card {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px 30px;
            text-align: center;
            position: relative;
            background-color: var(--white);
            transition: var(--transition);
        }

        .price-card.popular {
            border: 2px solid var(--primary-color);
            box-shadow: 0 10px 30px rgba(255, 210, 0, 0.15);
            transform: scale(1.03);
        }

        .price-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: var(--primary-color);
            color: var(--dark-color);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
        }

        .price-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .price-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark-color);
            margin-bottom: 25px;
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            padding: 10px 0;
            border-bottom: 1px solid var(--light-bg);
            font-size: 0.9rem;
            color: var(--text-dark);
        }

        .price-features li::before {
            content: "• ";
            color: var(--primary-hover);
            font-weight: 900;
        }

        /* 案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-wrap img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 20px;
        }

        .case-tag {
            background-color: rgba(255, 210, 0, 0.1);
            color: var(--dark-color);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 10px;
        }

        .case-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* 培训体系 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

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

        .training-item-box {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 15px;
            display: flex;
            gap: 15px;
            align-items: center;
            transition: var(--transition);
        }

        .training-item-box:hover {
            border-color: var(--primary-color);
            transform: translateX(5px);
        }

        .training-icon-num {
            background-color: var(--primary-color);
            color: var(--dark-color);
            font-size: 1.25rem;
            font-weight: 800;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .training-text h4 {
            font-weight: 700;
            margin-bottom: 4px;
        }

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

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

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            padding: 10px 0;
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 0.95rem;
            padding: 0 10px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 10px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        .faq-icon-arrow {
            transition: var(--transition);
        }

        .faq-item.active .faq-icon-arrow {
            transform: rotate(180deg);
        }

        /* 用户评论 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .testimonial-card {
            background-color: var(--light-bg);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .testimonial-card::after {
            content: '"';
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 5rem;
            color: rgba(0, 0, 0, 0.05);
            font-family: Georgia, serif;
            line-height: 1;
        }

        .testimonial-content {
            font-style: italic;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: var(--text-dark);
            position: relative;
            z-index: 2;
        }

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

        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

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

        /* 需求表单与加盟 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .form-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            background-color: var(--light-bg);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            background-color: var(--white);
            box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .btn-submit {
            width: 100%;
            background-color: var(--primary-color);
            color: var(--dark-color);
            border: none;
            padding: 14px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 10px rgba(255, 210, 0, 0.3);
        }

        .btn-submit:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .contact-method {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
        }

        .contact-icon {
            width: 48px;
            height: 48px;
            background-color: rgba(255, 210, 0, 0.1);
            color: var(--dark-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
        }

        .contact-text h4 {
            font-size: 1rem;
            font-weight: 700;
        }

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

        /* 资讯与友情链接 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }

        .news-item {
            background: var(--white);
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--primary-color);
            box-shadow: var(--shadow);
        }

        .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .news-title-link {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 700;
            font-size: 0.95rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .friend-links-area {
            background-color: var(--light-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            margin-top: 30px;
        }

        .friend-links-area h4 {
            font-size: 0.9rem;
            margin-bottom: 12px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        /* 浮动组件与页脚 */
        .float-kefu {
            position: fixed;
            right: 20px;
            bottom: 80px;
            background-color: var(--primary-color);
            color: var(--dark-color);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            z-index: 999;
            transition: var(--transition);
        }

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

        .float-kefu-box {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 200px;
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            box-shadow: var(--shadow);
            display: none;
            text-align: center;
        }

        .float-kefu-box img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .float-kefu-box p {
            font-size: 0.8rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        footer {
            background-color: var(--dark-color);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 20px;
            font-size: 0.85rem;
            border-top: 4px solid var(--primary-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-logo-desc h3 {
            color: var(--white);
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: var(--white);
            margin-bottom: 15px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-links h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary-color);
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .network-grid, .training-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                left: 0 !important;
                text-align: left !important;
                padding-left: 50px;
            }
            .timeline-badge {
                left: 0 !important;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                border-bottom: 2px solid var(--primary-color);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-btn-group {
                display: none;
            }
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 210, 0, 0.4); }
            70% { box-shadow: 0 0 0 10px rgba(255, 210, 0, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 210, 0, 0); }
        }