/* 基础样式复位 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }

        :root {
            --primary: #0F52BA; /* 宝蓝 */
            --primary-hover: #003893;
            --accent: #00F0FF; /* 明艳青/霓虹蓝 */
            --highlight: #FFD700; /* 亮金 */
            --bg-light: #F8FAFC;
            --bg-dark: #0A192F;
            --text-dark: #1E293B;
            --text-light: #F8FAFC;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --transition: all 0.3s ease;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

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

        ul {
            list-style: none;
        }

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

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

        .section-padding {
            padding: 80px 0;
        }

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

        .section-title h2 {
            font-size: 2rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-title p {
            margin-top: 15px;
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            z-index: 1000;
        }

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

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

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

        .logo-text {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            gap: 25px;
            align-items: center;
        }

        .nav-item {
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .nav-item:hover {
            color: var(--primary);
        }

        .btn-register {
            background-color: var(--primary);
            color: white !important;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-register:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(15,82,186,0.3);
        }

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

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

        /* Hero首屏 - 严禁出现图片 */
        .hero {
            background: linear-gradient(135deg, #0A192F 0%, #0D2C54 50%, #0F52BA 100%);
            color: var(--text-light);
            padding: 120px 0 90px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0,240,255,0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-badge {
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 25px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(to right, #FFFFFF, #B2D8FF, #00F0FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }

        .hero-desc {
            font-size: 1.25rem;
            max-width: 800px;
            margin: 0 auto 40px;
            color: #A0AEC0;
            line-height: 1.8;
        }

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

        .btn-primary {
            background: linear-gradient(90deg, var(--primary), #1E88E5);
            color: white;
            padding: 14px 35px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.1rem;
            box-shadow: 0 4px 15px rgba(15,82,186,0.4);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,240,255,0.4);
        }

        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: white;
            padding: 12px 33px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            background: rgba(0,240,255,0.05);
            color: var(--accent);
        }

        /* 平台核心优势 / 数据指标 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 35px 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(15,82,186,0.15);
        }

        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 关于我们与软件介绍 */
        .about-section {
            background-color: white;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

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

        .about-text {
            color: var(--text-dark);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 25px;
        }

        .brand-tag {
            background: #E2E8F0;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-dark);
            font-weight: 500;
        }

        .about-visual {
            background: linear-gradient(135deg, rgba(15,82,186,0.05) 0%, rgba(0,240,255,0.05) 100%);
            border: 1px dashed var(--primary);
            border-radius: 16px;
            padding: 40px;
            position: relative;
        }

        .platform-capabilities {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .cap-item {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            border-left: 3px solid var(--accent);
        }

        .cap-item h4 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1.05rem;
        }

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

        /* AIGC服务体系 & 支撑平台 */
        .service-section {
            background: var(--bg-light);
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 25px;
        }

        .scene-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px 25px;
            transition: var(--transition);
        }

        .scene-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 25px rgba(0,0,0,0.05);
            transform: translateY(-3px);
        }

        .scene-badge {
            background: rgba(15, 82, 186, 0.1);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            display: inline-block;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .scene-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

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

        /* 模型聚合矩阵 */
        .matrix-box {
            margin-top: 50px;
            background: white;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 35px rgba(0,0,0,0.04);
        }

        .matrix-title {
            text-align: center;
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 30px;
            font-weight: 700;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
            gap: 12px;
        }

        .matrix-item {
            background: var(--bg-light);
            border: 1px solid #E2E8F0;
            padding: 10px 5px;
            text-align: center;
            border-radius: 6px;
            font-size: 0.85rem;
            color: var(--text-dark);
            font-weight: 500;
            transition: var(--transition);
        }

        .matrix-item:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* 自动化制作流程 */
        .process-flow {
            position: relative;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

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

        .process-step:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.06);
            border-color: var(--primary);
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
        }

        .process-step h4 {
            font-size: 1.15rem;
            margin-bottom: 12px;
        }

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

        /* 行业解决方案与全国服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

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

        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(15,82,186,0.1);
        }

        .solution-header {
            background: linear-gradient(135deg, var(--primary) 0%, #1E88E5 100%);
            color: white;
            padding: 25px;
        }

        .solution-header h3 {
            font-size: 1.3rem;
            margin-bottom: 8px;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-list li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 12px;
            font-size: 0.9rem;
        }

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

        /* 全国网络与技术标准数据面板 */
        .network-section {
            background: #0A192F;
            color: var(--text-light);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .network-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-box {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 30px 20px;
            text-align: center;
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #A0AEC0;
        }

        /* 对比评测 - 突出9.9评分 */
        .compare-section {
            background: white;
        }

        .compare-box {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

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

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

        .score-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .score-stars {
            color: var(--highlight);
            font-size: 1.5rem;
        }

        .score-label {
            background: var(--primary);
            color: white;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .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: rgba(15, 82, 186, 0.05);
            color: var(--primary);
            font-weight: 700;
        }

        .compare-table tr:hover {
            background-color: rgba(0,0,0,0.02);
        }

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

        .badge-success {
            background: #DEF7EC;
            color: #03543F;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .badge-danger {
            background: #FDE8E8;
            color: #9B1C1C;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* Token 比价参考 */
        .token-section {
            background: var(--bg-light);
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .token-card {
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 25px;
            transition: var(--transition);
        }

        .token-card:hover {
            border-color: var(--accent);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
        }

        .token-model {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .token-price-list {
            margin-bottom: 20px;
        }

        .token-price-item {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.9rem;
        }

        /* 案例展示 - 引入指定图片 */
        .case-section {
            background: white;
        }

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

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

        .case-card:hover {
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }

        .case-img-wrap {
            height: 250px;
            overflow: hidden;
            background: #E2E8F0;
        }

        .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-info {
            padding: 25px;
        }

        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--primary);
        }

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

        /* 职业与人工智能培训 */
        .training-section {
            background: linear-gradient(135deg, #0F52BA 0%, #1E88E5 100%);
            color: white;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 30px 20px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .training-card:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-5px);
        }

        .training-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            color: var(--highlight);
        }

        /* 智能需求匹配与联系我们 (表单及二维码) */
        .contact-section {
            background: white;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 50px;
        }

        .form-wrap {
            background: var(--bg-light);
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            background: white;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15,82,186,0.15);
        }

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

        .btn-submit {
            background: var(--primary);
            color: white;
            border: none;
            width: 100%;
            padding: 14px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-submit:hover {
            background-color: var(--primary-hover);
        }

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

        .info-card {
            background: var(--bg-light);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            margin-bottom: 30px;
        }

        .info-item {
            margin-bottom: 20px;
        }

        .info-item:last-child {
            margin-bottom: 0;
        }

        .info-item h4 {
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .info-item p {
            color: var(--text-dark);
            font-weight: 500;
        }

        .qrcode-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            text-align: center;
        }

        .qrcode-box {
            background: white;
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .qrcode-box img {
            width: 120px;
            height: 120px;
            margin-bottom: 10px;
            border: 1px solid #eee;
        }

        .qrcode-box p {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        /* 客户评论卡片 */
        .reviews-section {
            background: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            color: var(--text-dark);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

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

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

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

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

        /* 自助排查工具 & 百科 */
        .diagnostic-section {
            background: white;
        }

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

        .troubleshoot-box {
            background: var(--bg-light);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

        .diag-buttons {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 20px;
        }

        .diag-btn {
            background: white;
            border: 1px solid var(--border-color);
            padding: 12px 20px;
            border-radius: 6px;
            text-align: left;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .diag-btn:hover, .diag-btn.active {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(15,82,186,0.05);
        }

        .diag-result {
            background: white;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 6px;
            min-height: 100px;
            font-size: 0.9rem;
        }

        .encyclopedia-box {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .term-card {
            border-left: 4px solid var(--primary);
            padding-left: 15px;
        }

        .term-card h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--primary);
        }

        .term-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 常见问题 FAQ 折叠面板 */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

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

        .faq-header {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-dark);
            user-select: none;
            transition: var(--transition);
        }

        .faq-header:hover {
            color: var(--primary);
            background-color: rgba(15, 82, 186, 0.01);
        }

        .faq-icon {
            transition: transform 0.3s;
            font-size: 1.2rem;
            font-weight: bold;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: white;
        }

        .faq-content {
            padding: 0 20px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-body {
            max-height: 1000px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

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

        .faq-item.active .faq-content {
            border-top-color: var(--border-color);
        }

        /* 行业资讯 & 知识库 */
        .blog-section {
            background: white;
        }

        .blog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .blog-card {
            background: var(--bg-light);
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .blog-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .blog-content {
            padding: 25px;
        }

        .blog-tag {
            background: rgba(15,82,186,0.1);
            color: var(--primary);
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .blog-content h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .blog-content h3 a {
            color: var(--text-dark);
            transition: var(--transition);
        }

        .blog-content h3 a:hover {
            color: var(--primary);
        }

        .blog-content p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .blog-footer {
            padding: 15px 25px;
            border-top: 1px solid var(--border-color);
            background: white;
        }

        .btn-text {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .btn-text:hover {
            color: var(--primary-hover);
        }

        /* 友情链接与页脚 */
        footer {
            background: #0A192F;
            color: #90A4AE;
            padding: 60px 0 30px;
            border-top: 5px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-about h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }

        .footer-about p {
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .footer-links h3 {
            color: white;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-contact h3 {
            color: white;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-contact-list {
            font-size: 0.9rem;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 25px;
            margin-top: 25px;
        }

        .friend-links-title {
            font-size: 0.9rem;
            color: white;
            margin-bottom: 15px;
            font-weight: 600;
        }

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

        .friend-links-flex a {
            font-size: 0.85rem;
            color: #90A4AE;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 浮动组件 */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

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

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background: white;
            color: var(--text-dark);
            padding: 8px 15px;
            border-radius: 4px;
            font-size: 0.85rem;
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
            font-weight: 600;
            border: 1px solid var(--border-color);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
        }

        .float-qrcode-box {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            border: 1px solid var(--border-color);
            display: none;
            text-align: center;
        }

        .float-qrcode-box img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .float-qrcode-box p {
            font-size: 0.8rem;
            color: var(--text-dark);
            margin: 0;
            font-weight: 600;
        }

        .float-btn-kefu:hover .float-qrcode-box {
            display: block;
        }

        /* 移动端适配 */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid var(--border-color);
            }

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

            .menu-toggle {
                display: flex;
            }

            .about-grid, .network-grid, .contact-grid, .diag-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .case-grid {
                grid-template-columns: 1fr;
            }

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

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }