/* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: #1f2937;
            background-color: #fcfcfc;
        }

        /* 变量 */
        :root {
            --primary-color: #E60012; /* 艳红热烈风 */
            --primary-hover: #b8000e;
            --primary-light: #fff0f1;
            --text-main: #111827;
            --text-muted: #4b5563;
            --bg-light: #f9fafb;
            --border-color: #e5e7eb;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 全局通用容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            text-decoration: none;
            transition: var(--transition-normal);
            cursor: pointer;
            border: 2px solid transparent;
        }
        .btn-primary {
            background-color: var(--primary-color);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(230, 0, 18, 0.4);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 0, 18, 0.6);
        }
        .btn-secondary {
            background-color: transparent;
            border-color: var(--primary-color);
            color: var(--primary-color);
        }
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-box img {
            height: 40px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
        }
        .nav-links a {
            color: var(--text-main);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-normal);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary-color);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: var(--transition-normal);
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 80% 20%, rgba(230, 0, 18, 0.08) 0%, transparent 60%),
                        radial-gradient(circle at 20% 80%, rgba(230, 0, 18, 0.04) 0%, transparent 50%),
                        #0a0505; /* 暗色科技质感背景 */
            color: #ffffff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(10, 5, 5, 0.2) 0%, #0a0505 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-tag {
            display: inline-block;
            background-color: var(--primary-color);
            color: #ffffff;
            font-size: 14px;
            font-weight: bold;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 24px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }
        .hero-section h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            font-weight: 800;
            background: linear-gradient(to right, #ffffff, #ffb3b7, #ffffff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 1.25rem;
            color: #d1d5db;
            margin-bottom: 40px;
            line-height: 1.6;
        }
        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero-btn-official {
            background-color: var(--primary-color);
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(230, 0, 18, 0.6);
            border: 2px solid var(--primary-color);
        }
        .hero-btn-official:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-3px);
        }
        .hero-btn-reg {
            border: 2px solid #ffffff;
            color: #ffffff;
        }
        .hero-btn-reg:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        /* 核心版块统一样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            color: var(--text-main);
            margin-bottom: 15px;
            font-weight: 700;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary-color);
            border-radius: 2px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们与平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .about-text p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .about-feat-item {
            padding: 20px;
            background-color: #ffffff;
            border-left: 4px solid var(--primary-color);
            box-shadow: var(--shadow-sm);
            border-radius: 0 8px 8px 0;
        }
        .about-feat-item h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .about-feat-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* AIGC 服务能力卡片 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .service-card {
            background-color: #ffffff;
            padding: 40px 30px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
            text-align: center;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(230, 0, 18, 0.3);
        }
        .service-icon {
            width: 70px;
            height: 70px;
            background-color: var(--primary-light);
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin: 0 auto 24px;
        }
        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }
        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 一站式制作场景与模型聚合标签 */
        .model-聚合-box {
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            margin-top: 50px;
            border: 1px solid var(--border-color);
        }
        .model-聚合-title {
            text-align: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 30px;
            color: var(--text-main);
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .model-tag {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-normal);
        }
        .model-tag:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            background-color: var(--primary-light);
            transform: scale(1.05);
        }

        /* 行业解决方案与全国服务网络 */
        .solution-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .sol-tab {
            padding: 10px 24px;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-normal);
        }
        .sol-tab.active, .sol-tab:hover {
            background-color: var(--primary-color);
            color: #ffffff;
            border-color: var(--primary-color);
        }
        .solution-content {
            background-color: #ffffff;
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .solution-pane {
            display: none;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .solution-pane.active {
            display: grid;
        }
        .sol-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .sol-text ul {
            list-style: none;
        }
        .sol-text ul li {
            padding-left: 24px;
            position: relative;
            margin-bottom: 12px;
            font-size: 1.05rem;
            color: var(--text-muted);
        }
        .sol-text ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-weight: bold;
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }
        .network-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .network-item {
            background: #ffffff;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--primary-color);
            box-shadow: var(--shadow-sm);
        }

        /* 标准化流程 & 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 4px;
            background-color: var(--border-color);
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 60px;
            width: 50%;
            padding: 0 40px;
        }
        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }
        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }
        .timeline-badge {
            position: absolute;
            top: 0;
            left: 100%;
            transform: translate(-50%, 0);
            width: 40px;
            height: 40px;
            background-color: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            border: 4px solid #ffffff;
            box-shadow: var(--shadow-sm);
            z-index: 5;
        }
        .timeline-item:nth-child(even) .timeline-badge {
            left: 0;
        }
        .timeline-panel {
            background-color: #ffffff;
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            display: inline-block;
            max-width: 100%;
        }

        /* 客户案例中心 (包含图片展示) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        .case-card {
            background-color: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .case-image-container {
            width: 100%;
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .case-image-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-normal);
        }
        .case-card:hover .case-image-container img {
            transform: scale(1.05);
        }
        .case-info {
            padding: 24px;
        }
        .case-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-color);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }
        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .case-info p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 对比评测表格 */
        .compare-container {
            background-color: #ffffff;
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow-x: auto;
        }
        .compare-score-bar {
            display: flex;
            justify-content: space-around;
            align-items: center;
            background-color: var(--primary-light);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 30px;
            border: 1px solid rgba(230, 0, 18, 0.15);
        }
        .score-item {
            text-align: center;
        }
        .score-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
        }
        .score-label {
            font-size: 1rem;
            color: var(--text-main);
            margin-top: 5px;
            font-weight: 600;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }
        .compare-table th {
            background-color: var(--bg-light);
            font-weight: 700;
            color: var(--text-main);
        }
        .compare-table tr:hover {
            background-color: rgba(230, 0, 18, 0.02);
        }
        .highlight-col {
            color: var(--primary-color);
            font-weight: 600;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .token-card {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: var(--transition-normal);
        }
        .token-card.cheapest {
            border-color: var(--primary-color);
            box-shadow: 0 4px 20px rgba(230, 0, 18, 0.1);
        }
        .token-card.cheapest::before {
            content: '推荐商户';
            position: absolute;
            top: 15px;
            right: -30px;
            background-color: var(--primary-color);
            color: #ffffff;
            font-size: 11px;
            font-weight: bold;
            padding: 4px 30px;
            transform: rotate(45deg);
        }
        .token-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .token-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-main);
        }
        .token-price {
            font-size: 2rem;
            color: var(--primary-color);
            font-weight: 800;
            margin-bottom: 20px;
        }
        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }
        .token-features {
            list-style: none;
            margin-bottom: 24px;
            text-align: left;
        }
        .token-features li {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            padding-left: 20px;
            position: relative;
        }
        .token-features li::before {
            content: '●';
            position: absolute;
            left: 0;
            color: var(--primary-color);
        }

        /* 职业与人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .training-info h3 {
            font-size: 1.6rem;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .training-item {
            background-color: #ffffff;
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-normal);
        }
        .training-item:hover {
            border-color: var(--primary-color);
            transform: translateX(5px);
        }
        .training-item h4 {
            font-size: 1.1rem;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .training-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition-normal);
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: var(--transition-normal);
        }
        .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: var(--bg-light);
        }
        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            border-top: 1px solid var(--border-color);
        }

        /* AI 术语百科 & 行业资讯 */
        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }
        .encyclopedia-card {
            background: #ffffff;
            padding: 24px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
        }
        .encyclopedia-card:hover {
            border-color: var(--primary-color);
            box-shadow: var(--shadow-sm);
        }
        .encyclopedia-card h4 {
            color: var(--primary-color);
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .news-card {
            background-color: #ffffff;
            border-radius: 8px;
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
        }
        .news-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .news-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .news-card a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 15px;
        }

        /* 客户评论卡片 (6条) */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        .review-card {
            background-color: #ffffff;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .review-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            font-style: italic;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .user-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
        }
        .user-info h4 {
            font-size: 1rem;
            color: var(--text-main);
            margin-bottom: 2px;
        }
        .user-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 加盟代理 */
        .agent-container {
            background-color: #0d0606;
            color: #ffffff;
            border-radius: 16px;
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .agent-container h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            font-weight: 700;
        }
        .agent-container p {
            color: #d1d5db;
            max-width: 700px;
            margin: 0 auto 30px;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        .agent-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        .agent-item {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 24px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .agent-item h4 {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        /* 需求匹配与联系我们表单 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: flex-start;
        }
        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .contact-info-item {
            display: flex;
            gap: 20px;
        }
        .contact-icon {
            font-size: 24px;
            color: var(--primary-color);
        }
        .contact-detail h4 {
            font-size: 1.1rem;
            color: var(--text-main);
            margin-bottom: 5px;
        }
        .contact-detail p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .qr-card {
            background-color: #ffffff;
            padding: 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .qr-card img {
            width: 130px;
            height: 130px;
            object-fit: cover;
            margin-bottom: 8px;
        }
        .qr-card p {
            font-size: 0.85rem;
            color: var(--text-main);
            font-weight: 600;
        }
        .form-container {
            background-color: #ffffff;
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            font-size: 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--bg-light);
            color: var(--text-main);
            transition: var(--transition-normal);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: #0c0808;
            color: #d1d5db;
            padding: 60px 0 30px;
            font-size: 14px;
            border-top: 2px solid var(--primary-color);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            color: #ffffff;
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        .footer-brand p {
            line-height: 1.6;
            margin-bottom: 15px;
        }
        .footer-links h4, .footer-contact h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: #9ca3af;
            text-decoration: none;
            transition: var(--transition-normal);
        }
        .footer-links ul li a:hover {
            color: var(--primary-color);
        }
        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-bottom: 20px;
        }
        .friend-links-title {
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 10px;
            font-size: 13px;
        }
        .friend-links-box a {
            color: #9ca3af;
            text-decoration: none;
            margin-right: 15px;
            font-size: 13px;
            display: inline-block;
            transition: var(--transition-normal);
        }
        .friend-links-box a:hover {
            color: var(--primary-color);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 浮动客服入口 */
        .float-widget {
            position: fixed;
            bottom: 40px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: var(--transition-normal);
            position: relative;
        }
        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.1);
        }
        .float-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            display: none;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .float-qr img {
            width: 120px;
            height: 120px;
        }
        .float-qr p {
            color: var(--text-main);
            font-size: 12px;
            margin-top: 5px;
            white-space: nowrap;
        }
        .float-btn:hover .float-qr {
            display: block;
        }

        /* 动画关键帧 */
        @keyframes pulse {
            0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(230, 0, 18, 0.7); }
            70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(230, 0, 18, 0); }
            100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(230, 0, 18, 0); }
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .hero-section h1 { font-size: 2.2rem; }
            .about-grid, .network-grid, .training-grid, .contact-grid { grid-template-columns: 1fr; }
            .timeline::before { left: 40px; }
            .timeline-item { width: 100%; padding: 0 0 0 80px; text-align: left !important; }
            .timeline-badge { left: 40px !important; }
            .timeline-item:nth-child(even) .timeline-panel { text-align: left; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .nav-links {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                display: none;
                border-top: 1px solid var(--border-color);
            }
            .nav-links.active { display: flex; }
            .hero-btn-group { flex-direction: column; width: 100%; max-width: 300px; margin: 0 auto; }
            .solution-pane.active { grid-template-columns: 1fr; }
        }