* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        :root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --success: #2ecc71;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --vh: 1vh;
        }
        
        body {
            min-height: 100vh;
            background-color: #f9f9f9;
            color: #333;
            overflow-x: hidden;
        }
        
        /* 移动端顶部导航条 */
        .mobile-nav-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: linear-gradient(135deg, var(--primary), #1a2530);
            color: white;
            z-index: 1001;
            box-shadow: var(--shadow);
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
        }
        
        .mobile-logo h1 {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(to right, #3498db, #2ecc71);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: var(--transition);
        }
        
        .mobile-nav-bar.hide-logo .mobile-logo {
            opacity: 0;
            visibility: hidden;
        }
        
        .mobile-nav-toggle {
            background: none;
            color: white;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 5px;
            transition: var(--transition);
        }
        
        .mobile-nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        
        /* 左侧导航样式 */
        .sidebar {
            width: 280px;
            background: linear-gradient(135deg, var(--primary), #1a2530);
            color: white;
            height: 100vh;
            position: fixed;
            overflow-y: auto;
            box-shadow: var(--shadow);
            z-index: 1000;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .logo {
            padding: 25px 20px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        
        .logo h1 {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(to right, #3498db, #2ecc71);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }
        
        .logo p {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        
        .nav-menu {
            padding: 20px 0;
            flex: 1;
            overflow-y: auto;
        }
        
        .nav-item {
            position: relative;
        }
        
        .nav-link {
            display: flex;
            align-items: center;
            padding: 15px 25px;
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            border-left: 4px solid transparent;
        }
        
        .nav-link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: white;
            border-left-color: var(--secondary);
        }
        
        .nav-link.active {
            background: rgba(52, 152, 219, 0.1);
            color: white;
            border-left-color: var(--secondary);
        }
        
        .nav-link i {
            margin-right: 12px;
            font-size: 1.1rem;
            width: 20px;
            text-align: center;
        }
        
        .submenu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
            background: rgba(0, 0, 0, 0.2);
        }
        
        .submenu.active {
            max-height: 500px;
        }
        
        .submenu .nav-link {
            padding-left: 60px;
            font-size: 0.9rem;
        }
        
        .contact-card {
            margin: 20px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 15px;
            flex-shrink: 0;
        }
        
        .contact-info {
            flex: 1;
        }
        
        .contact-info h3 {
            margin-bottom: 5px;
            font-size: 1.1rem;
        }
        
        .contact-info p {
            font-size: 0.8rem;
            opacity: 0.8;
            margin-bottom: 10px;
        }
        
        .qrcode {
            width: 80px;
            height: 80px;
            background: white;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #333;
            text-align: center;
            flex-shrink: 0;
        }
        
        /* PC端左侧导航子目录滚动条隐藏 */
        @media (min-width: 769px) {
            .sidebar {
                scrollbar-width: none; /* Firefox */
                -ms-overflow-style: none; /* IE and Edge */
            }
            
            .sidebar::-webkit-scrollbar {
                display: none; /* Chrome, Safari and Opera */
            }
            
            /* 确保导航菜单内部滚动条也隐藏 */
            .nav-menu {
                scrollbar-width: none;
                -ms-overflow-style: none;
            }
            
            .nav-menu::-webkit-scrollbar {
                display: none;
            }
            
            /* 子菜单滚动条隐藏 */
            .submenu {
                scrollbar-width: none;
                -ms-overflow-style: none;
            }
            
            .submenu::-webkit-scrollbar {
                display: none;
            }
        }
        
        /* 右侧内容样式 */
        .main-content {
            flex: 1;
            margin-left: 280px;
            padding: 0;
            transition: var(--transition);
        }
        
        .section {
            padding: 50px 0;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 50px;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--secondary), var(--success));
            border-radius: 2px;
        }
        
        .section-title p {
            color: #666;
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* Banner样式 */
        .banner {
               height: 420px;
    background: linear-gradient(rgb(8 8 8 / 25%), rgb(24 129 235 / 90%)), url(../tyong.png) center / cover no-repeat;
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    z-index: 1;
        }
        
        .banner-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .banner h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .banner p {
            font-size: 1.3rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .btn {
            display: inline-block;
            padding: 14px 35px;
            background: linear-gradient(to right, var(--secondary), var(--success));
            color: white;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.6);
        }
        
        /* 服务项目样式 */
        .services-intro {
            text-align: center;
            max-width: 900px;
            margin: 0 auto 50px;
            font-size: 1.1rem;
            line-height: 1.7;
            color: #555;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .service-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--secondary), var(--success));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.8rem;
        }
        
        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .service-card p {
            color: #666;
            line-height: 1.6;
        }
        
        /* 服务理念样式 */
        .philosophy {
            background: var(--light);
        }
        
        .philosophy-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .philosophy-text {
            flex: 1;
        }
        
        .philosophy-text h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .philosophy-text p {
            margin-bottom: 20px;
            line-height: 1.7;
            color: #555;
        }
        
        .philosophy-visual {
            flex: 1;
            display: flex;
            justify-content: center;
            height: 350;
        }
        
        .stats-card {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            min-width: 250px;
        }
        
        .stats-card h4 {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 10px;
        }
        
        .stats-card p {
            color: #666;
            font-size: 1.1rem;
        }
        
        /* 优势部分样式 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: flex-start;
            gap: 20px;
            transition: var(--transition);
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .advantage-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--secondary), var(--success));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        
        .advantage-text h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .advantage-text p {
            color: #666;
            line-height: 1.6;
        }
        
        /* 案例部分样式 */
        .cases {
            background: var(--light);
        }
        
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .case-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .case-image {
            height: 200px;
            background-size: cover;
            background-position: center;
        }
        
        .case-content {
            padding: 25px;
        }
        
        .case-content h3 {
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .case-content p {
            color: #666;
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .case-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
        }
        
        .stat {
            text-align: center;
        }
        
        .stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: #666;
        }
        
        /* FAQ样式 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: white;
            border-radius: 10px;
            margin-bottom: 20px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        
        .faq-question {
            padding: 20px 25px;
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            background: rgba(52, 152, 219, 0.05);
        }
        
        .faq-answer {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease;
            color: #555;
            line-height: 1.7;
        }
        
        .faq-answer.active {
            padding: 0 25px 25px;
            max-height: 500px;
        }
        
        /* 教程部分样式 */
        .tutorials {
            background: var(--light);
        }
        
        .tutorials-grid {
            display: grid;
         
            gap: 30px;
        }
        
        .tutorial-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .tutorial-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .tutorial-image {
            height: 180px;
            background-size: cover;
            background-position: center;
        }
        
        .tutorial-content {
            padding: 25px;
        }
        
        .tutorial-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .tutorial-content p {
            color: #666;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .tutorial-meta {
            display: flex;
            justify-content: space-between;
            color: #888;
            font-size: 0.9rem;
        }
        
        /* 百度竞价板块样式 */
        .baidu-section {
            background: white;
        }
        
        .baidu-content {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .baidu-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        
        .baidu-content p {
            font-size: 1.1rem;
            line-height: 1.7;
            color: #555;
            margin-bottom: 30px;
        }
        
        /* 页脚样式 */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        
        /* 1200px以上大屏幕优化 */
        @media (min-width: 1200px) {
            .cases-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            
            
            /* 可选：优化卡片在更大屏幕上的显示 */
            .case-card, .tutorial-card {
                transition: var(--transition);
            }
            
            .case-card:hover, .tutorial-card:hover {
                transform: translateY(-5px);
                box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .sidebar {
                width: 240px;
            }
            
            .main-content {
                margin-left: 240px;
            }
            
            .banner h1 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-nav-bar {
                display: flex;
            }
            .logo{
                display:none;
            }
            
            /* 修复移动端导航溢出问题 */
            .sidebar {
                width: 280px;
                transform: translateX(-100%);
                top: 70px;
                height: calc(var(--vh, 1vh) * 100 - 70px);
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }
            
            .sidebar.active {
                transform: translateX(0);
            }
            
            .main-content {
                margin-left: 0;
                margin-top: 70px;
            }
            
            .main-content.sidebar-active {
                overflow: hidden;
            }
            
            /* 修复联系卡片显示问题 */
            .sidebar {
                display: flex;
                flex-direction: column;
                justify-content: space-between;
            }
            
            .nav-menu {
                flex: 1;
                overflow-y: auto;
                max-height: calc(100% - 180px); /* 为联系卡片留出空间 */
            }
            
            .contact-card {
                margin-top: auto; /* 将联系卡片推到底部 */
                margin-bottom: 20px;
            }
            
            .philosophy-content {
                flex-direction: column;
            }
            
            .banner {
                height: 310px;
            }
            
            .banner h1 {
                font-size: 2.2rem;
            }
            
            .banner p {
                font-size: 1.1rem;
            }
            
            .contact-card {
                flex-direction: column;
                text-align: center;
            }
            
            .container {
                padding: 0 20px;
            }
            .section-title {
                text-align: center;
                margin-bottom: 40px;
            }
            .section {
                padding: 35px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .services-grid {
                grid-template-columns: 1fr;
            }
            
            .advantages-grid {
                grid-template-columns: 1fr;
            }
            
            .cases-grid {
                grid-template-columns: 1fr;
            }
            
            .tutorials-grid {
                grid-template-columns: 1fr;
            }
            
            /* 添加底部安全区域支持 */
            @supports(padding: max(0px)) {
                .sidebar {
                    padding-bottom: max(20px, env(safe-area-inset-bottom));
                }
            }
        }

        /* 文章列表页专用样式 */
        .articles-banner {
            background: linear-gradient(135deg, #2c3e50 0%, #4a6491 100%);
            color: white;
            padding: 40px 0;
            margin-bottom: 30px;
        }
        
        .articles-banner-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            text-align: center;
        }
        
        .articles-banner h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .articles-banner p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.6;
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            max-width: 1200px;
            margin: 0 auto 30px;
            padding: 0 20px;
        }
        
        .breadcrumb ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        
        .breadcrumb li {
            margin-right: 10px;
            font-size: 0.9rem;
        }
        
        .breadcrumb li:not(:last-child):after {
            content: ">";
            margin-left: 10px;
            opacity: 0.6;
        }
        
        .breadcrumb a {
            color: #4a6491;
            text-decoration: none;
        }
        
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        
        .breadcrumb span {
            color: #666;
        }
        
        /* 文章分类导航 */
        .category-nav {
            max-width: 1200px;
            margin: 0 auto 30px;
            padding: 0 20px;
        }
        
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        
        .category-tab {
            padding: 6px 10px;
            background: #f5f7fa;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
            border: 1px solid #e1e5eb;
        }
        
        .category-tab:hover {
            background: #eef2f7;
            transform: translateY(-2px);
        }
        
        .category-tab.active {
            background: #4a6491;
            color: white;
            border-color: #4a6491;
        }
        
        .category-info {
            background: #c5e2ff;
            padding: 20px;
            border-radius: 8px;
            margin-top: 10px;
            border-left: 4px solid #4a6491;
        }
        
        .category-info h3 {
            margin-top: 0;
            color: #2c3e50;
        }
        
        .category-info p {
            margin-bottom: 0;
            color: #555;
            line-height: 1.6;
        }
        
        /* 文章列表 */
        .articles-container {
            max-width: 1200px;
            margin: 0 auto 50px;
            padding: 0 20px;
        }
        
        .articles-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .articles-header h2 {
            margin: 0;
            color: #2c3e50;
            font-size: 1.8rem;
        }
        
        .articles-count {
            color: #666;
            font-size: 0.95rem;
        }
        
        .articles-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 25px;
        }
        
        .article-item {
            display: flex;
            background: white;
            border-radius: 8px;
            margin-bottom:10px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .article-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .article-image {
            width: 250px;
            min-height: 200px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }
        
        .article-content {
            padding: 25px;
            flex-grow: 1;
        }
        
        .article-meta {
            display: flex;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: #666;
        }
        
        .article-meta span {
            margin-right: 20px;
            display: flex;
            align-items: center;
        }
        
        .article-meta i {
            margin-right: 5px;
            font-size: 0.9rem;
        }
        
        .article-content h3 {
            margin-top: 0;
            margin-bottom: 15px;
            font-size: 1.4rem;
        }
        
        .article-content h3 a {
            color: #2c3e50;
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .article-content h3 a:hover {
            color: #4a6491;
        }
        
        .article-excerpt {
            color: #555;
            line-height: 1.6;
            margin-bottom: 15px;
        }
        
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }
        
        .tag {
            background: #f0f4f8;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #4a6491;
        }
        
        /* 分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }
        
        .pagination ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .pagination li {
            margin: 0 5px;
        }
        
        .pagination a, .pagination span {
            display: inline-block;
            padding: 8px 15px;
            border-radius: 4px;
            text-decoration: none;
            color: #4a6491;
            border: 1px solid #e1e5eb;
            transition: all 0.3s;
        }
        
        .pagination a:hover {
            background: #f5f7fa;
        }
        
        .pagination .active {
            background: #4a6491;
            color: white;
            border-color: #4a6491;
        }
        
        .pagination .prev-next {
            font-weight: 600;
        }
        
        /* 移动端适配 */
        @media (max-width: 992px) {
            .article-item {
                flex-direction: column;
            }
            
            .article-image {
                width: 100%;
                height: 200px;
            }
        }
        
        @media (max-width: 768px) {
            .articles-banner h1 {
                font-size: 2rem;
            }
            
            .articles-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .articles-count {
                margin-top: 10px;
            }
            
            .category-tabs {
                justify-content: center;
            }
        }
        
        @media (max-width: 576px) {
            .category-tabs {
                gap: 8px;
            }
            
            .category-tab {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
            
            .article-meta {
                flex-wrap: wrap;
            }
        }


/*文章页*/
:root {
            --primary-color: #4a6491;
            --primary-dark: #2c3e50;
            --primary-light: #6c8bb9;
            --secondary-color: #f8b739;
            --accent-color: #e74c3c;
            --light-bg: #f8f9fa;
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            --card-hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            line-height: 1.6;
        }
        
        .article-container {
            max-width: 1100px;
            margin: 0 auto 60px;
            padding: 0 20px;
        }
        
        /* 面包屑导航美化 */
        .breadcrumb {
            margin-bottom: 30px;
            padding: 15px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .breadcrumb ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        
        .breadcrumb li {
            margin-right: 10px;
            font-size: 0.9rem;
            position: relative;
        }
        
        .breadcrumb li:not(:last-child):after {
            content: "›";
            margin-left: 12px;
            color: #aaa;
            font-size: 1.1rem;
        }
        
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }
        
        .breadcrumb span {
            color: #777;
            font-weight: 500;
            padding: 4px 8px;
        }
        
        /* 文章头部美化 */
        .article-header {
            margin-bottom: 15px;
            border-bottom: 2px solid #f0f4f8;
        }
        
        .article-title {
            font-size: 1.8rem;
            line-height: 1.2;
            color: var(--primary-dark);
            font-weight: 700;
            position: relative;
            padding-bottom: 20px;
        }
        
        .article-title:after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 25px;
        }
        
        .article-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            width: 100%;
        }
        
        .stat-item {
            display: flex;
            align-items: center;
            color: #666;
            font-size: 0.95rem;
            padding: 8px 0;
        }
        
        .stat-item i {
            margin-right: 10px;
            color: var(--primary-color);
            font-size: 1.1rem;
        }
        
        /* 文章摘要美化 */
        .article-abstract {
            background: linear-gradient(135deg, #f8f9fa 0%, #f0f4f8 100%);
            padding: 30px;
            border-radius: 12px;
            border-left: 5px solid var(--primary-color);
            position: relative;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            margin-bottom: 40px;
        }
        
        .article-abstract:before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary-color), var(--primary-light));
        }
        
        .abstract-title {
            display: flex;
            align-items: center;
            margin-bottom: 18px;
            color: var(--primary-dark);
        }
        
        .abstract-title i {
            margin-right: 12px;
            color: var(--primary-color);
            font-size: 1.3rem;
        }
        
        .abstract-title h3 {
            margin: 0;
            font-size: 1.4rem;
        }
        
        .abstract-content p {
            margin: 0;
            line-height: 1.7;
            color: #555;
            font-size: 1.05rem;
        }
        
        /* 正文内容美化 - 更换为article-body */
        .article-body {
            line-height: 1.8;
            color: #444;
            font-size: 1.08rem;
        }
        
        .article-body h2 {
            color: var(--primary-dark);
            margin-top: 50px;
            margin-bottom: 25px;
            padding-bottom: 12px;
            border-bottom: 2px solid #f0f4f8;
            font-size: 1.8rem;
            position: relative;
        }
        
        .article-body h2:after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background: var(--primary-color);
        }
        
        .article-body h3 {
            color: #3a506b;
            margin-top: 35px;
            margin-bottom: 18px;
            font-size: 1.4rem;
            padding-left: 15px;
            border-left: 4px solid var(--secondary-color);
        }
        
        .article-body p {
            margin-bottom: 24px;
        }
        
        .article-body ul, .article-body ol {
            margin-bottom: 25px;
            padding-left: 30px;
        }
        
        .article-body li {
            margin-bottom: 12px;
            position: relative;
        }
        
        .article-body ul li:before {
            
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: -18px;
        }
        
        .article-body ol {
            counter-reset: list-counter;
        }
        
        .article-body ol li {
            counter-increment: list-counter;
        }
        
        .article-body ol li:before {
           
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: -25px;
        }
        
        .article-body blockquote {
            border-left: 4px solid var(--primary-color);
            padding: 25px 30px;
            margin: 35px 0;
            background: linear-gradient(to right, #f8f9fa, #f0f4f8);
            font-style: italic;
            color: #555;
            border-radius: 0 10px 10px 0;
            position: relative;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .article-body figure {
            margin: 35px 0;
        }
        
        .article-body figcaption {
            text-align: center;
            font-size: 0.95rem;
            color: #777;
            margin-top: 12px;
            font-style: italic;
        }
        
        .highlight-box {
            background: linear-gradient(to right, #f0f7ff, #e6f0ff);
            padding: 28px 30px;
            border-radius: 10px;
            margin: 35px 0;
            border-left: 5px solid var(--primary-color);
            position: relative;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .highlight-box h4 {
            margin-top: 0;
            color: var(--primary-dark);
            font-size: 1.2rem;
            display: flex;
            align-items: center;
        }
        
        .highlight-box h4 i {
            margin-right: 10px;
            color: var(--primary-color);
        }
        
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-radius: 10px;
            overflow: hidden;
        }
        
        thead {
            background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
            color: white;
        }
        
        th {
            padding: 18px 15px;
            text-align: left;
            font-weight: 600;
        }
        
        tbody tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        
        td {
            padding: 15px;
            border-bottom: 1px solid #eee;
        }
        
        /* 文章标签美化 */
        .article-tags {
            margin-top: 60px;
            padding-top: 35px;
            border-top: 2px solid #f0f4f8;
        }
        
        .article-tags h4 {
            margin-bottom: 20px;
            color: var(--primary-dark);
            font-size: 1.3rem;
            display: flex;
            align-items: center;
        }
        
        .article-tags h4:before {
            content: "\f02c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-right: 12px;
            color: var(--primary-color);
        }
        
        .tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .tag {
                background: #f0f4f8;
    padding: 3px 18px;
    border-radius: 6px;
    font-size: 0.95rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid #e1e8f0;
        }
        
        /* 文章导航美化 */
        .article-navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 60px;
            padding-top: 35px;
            border-top: 2px solid #f0f4f8;
        }
        
        .nav-prev, .nav-next {
            display: flex;
            align-items: center;
            max-width: 48%;
            padding: 20px;
            border-radius: 12px;
            background: var(--light-bg);
        }
        
        .nav-prev {
            text-align: left;
        }
        
        .nav-next {
            text-align: right;
            flex-direction: row-reverse;
            margin-left: auto;
        }
        
        .nav-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            border-radius: 50%;
            margin: 0 20px;
            color: white;
            flex-shrink: 0;
            font-size: 1.2rem;
            box-shadow: 0 5px 15px rgba(74, 100, 145, 0.3);
        }
        
        .nav-text {
            color: #777;
            font-size: 0.9rem;
            margin-bottom: 8px;
            font-weight: 500;
        }
        
        .nav-title {
            color: var(--primary-dark);
            font-weight: 600;
            text-decoration: none;
            font-size: 1.1rem;
            line-height: 1.4;
        }
        
        /* 猜你喜欢美化 - 2行3列布局 */
        .related-articles {
            margin-top: 40px;
            padding-top: 50px;
            border-top: 2px solid #f0f4f8;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2:after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        
        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr); /* 3列布局 */
            grid-template-rows: repeat(2, auto); /* 2行布局 */
            gap: 35px;
        }
        
        .related-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .related-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }
        
        .related-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .related-content h3 {
            margin-top: 0;
            margin-bottom: 15px;
            font-size: 1.3rem;
            line-height: 1.4;
           
        }
        
        .related-content h3 a {
            color: var(--primary-dark);
            text-decoration: none;
        }
        
        .related-excerpt {
            color: #666;
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }
        
        .related-meta {
            display: flex;
            justify-content: space-between;
            color: #888;
            font-size: 0.9rem;
            padding-top: 18px;
            border-top: 1px solid #f0f0f0;
            margin-top: auto;
        }
        
        /* 页脚美化 */
        footer {
            background: linear-gradient(135deg, var(--primary-dark), #1a2536);
            color: white;
            padding: 60px 0 30px;
            
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .footer-column h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
            position: relative;
        }
        
        .footer-column h3:after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--secondary-color);
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 15px;
        }
        
        .footer-links a, .footer-links li {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .footer-links i {
            margin-right: 10px;
            width: 20px;
            text-align: center;
        }
        
        .footer-bottom {
            text-align: center;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        
        /* 移动端适配 */
        @media (max-width: 1200px) {
            .related-grid {
                gap: 25px;
            }
        }
        
        @media (max-width: 992px) {
            .article-title {
                font-size: 2.3rem;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 30px;
            }
            
            .related-grid {
                grid-template-columns: repeat(2, 1fr); /* 平板端改为2列 */
                grid-template-rows: repeat(3, auto); /* 3行布局 */
            }
            
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .article-stats {
                width: 100%;
                flex-wrap: wrap;
                gap: 20px;
            }
            
            .stat-item {
                font-size: 0.9rem;
            }
        }
        
        @media (max-width: 768px) {

            .article-title {
                font-size: 2rem;
            }
            
            .related-grid {
                grid-template-columns: 1fr; /* 手机端改为1列 */
                grid-template-rows: repeat(6, auto); /* 6行布局 */
            }
            
            .article-navigation {
                flex-direction: column;
                gap: 20px;
            }
            
            .nav-prev, .nav-next {
                max-width: 100%;
                width: 100%;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            /* 移动端作者阅读量显示在一行，尽量不换行 */
            .article-stats {
                display: flex;
                flex-wrap: nowrap; /* 不换行 */
                gap: 15px;
                overflow-x: auto;
                padding-bottom: 10px;
                -webkit-overflow-scrolling: touch;
            }
            
            .stat-item {
                flex-shrink: 0; /* 不收缩 */
                white-space: nowrap; /* 文本不换行 */
                font-size: 0.85rem;
                padding: 6px 10px;
                background: #f0f4f8;
                border-radius: 6px;
                min-width: auto;
            }
            
            .stat-item i {
                font-size: 1rem;
                margin-right: 6px;
            }
            
            /* 简化移动端文本显示 */
            .stat-item:nth-child(1) span {
                max-width: 80px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }
            
            .stat-item:nth-child(2) span {
                max-width: 120px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }
            
            .stat-item:nth-child(3) span {
                max-width: 80px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }
            
            /* 移动端去除.article-body元素的margin */
            .article-body {
                margin: 0;
            }
            
            .article-body h2 {
                margin-top: 20px;
                margin-bottom: 15px;
                font-size: 1.6rem;
            }
            
            .article-body h3 {
                margin-top: 18px;
                margin-bottom: 12px;
                font-size: 1.3rem;
                padding-left: 10px;
            }
            
            .article-body p {
                margin-bottom: 15px;
            }
            
            .article-body ul, .article-body ol {
                margin-bottom: 18px;
                padding-left: 20px;
            }
            
            .article-body li {
                margin-bottom: 8px;
            }
            
            .article-body blockquote {
                padding: 15px 20px;
                margin: 20px 0;
            }
            
            .article-body img {
                margin: 20px 0;
            }
            
            .article-body figure {
                margin: 20px 0;
            }
            
            .highlight-box {
                padding: 20px;
                margin: 20px 0;
            }
            
            table {
                margin: 20px 0;
            }
        }
        
        @media (max-width: 576px) {
            .article-title {
                font-size: 1.7rem;
            }
            
            .article-stats {
                gap: 10px;
                padding-bottom: 8px;
            }
            
            .stat-item {
                font-size: 0.8rem;
                padding: 5px 8px;
            }
            
            .stat-item i {
                font-size: 0.9rem;
                margin-right: 5px;
            }
            
            /* 超小屏幕优化 */
            .stat-item:nth-child(1) span {
                max-width: 60px;
            }
            
            .stat-item:nth-child(2) span {
                max-width: 90px;
            }
            
            .stat-item:nth-child(3) span {
                max-width: 60px;
            }
            
            .article-abstract {
                padding: 25px 20px;
                margin-bottom: 30px;
            }
            
            .article-body h2 {
                font-size: 1.5rem;
            }
            
            .article-body h3 {
                font-size: 1.2rem;
            }
            
            .section-title h2 {
                font-size: 1.6rem;
            }
            
            .section-title p {
                font-size: 1rem;
            }
            
            /* 更小的屏幕进一步简化文本 */
            @media (max-width: 400px) {
                .article-stats {
                    gap: 8px;
                }
                
                .stat-item {
                    font-size: 0.75rem;
                    padding: 4px 6px;
                }
                
                .stat-item i {
                    font-size: 0.85rem;
                }
                
                /* 进一步缩短文本 */
                .stat-item:nth-child(1) span:after {
                    content: "xxx"; /* 简化为作者名 */
                }
                
                .stat-item:nth-child(1) span:before {
                    content: "作者:";
                }
                
                .stat-item:nth-child(1) span {
                    max-width: 50px;
                }
                
                .stat-item:nth-child(2) span {
                    max-width: 70px;
                }
                
                .stat-item:nth-child(3) span {
                    max-width: 50px;
                }
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .article-header, .article-abstract, .article-body, .article-tags, .article-navigation, .related-articles {
            animation: fadeInUp 0.6s ease-out forwards;
        }
        
        .article-abstract { animation-delay: 0.1s; }
        .article-body { animation-delay: 0.2s; }
        .article-tags { animation-delay: 0.3s; }
        .article-navigation { animation-delay: 0.4s; }
        .related-articles { animation-delay: 0.5s; }
        
        /* 回到顶部按钮 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            box-shadow: 0 5px 20px rgba(74, 100, 145, 0.3);
            z-index: 1000;
        }
        
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        
        /* 文章元数据横向滚动条样式 */
        .article-stats::-webkit-scrollbar {
            height: 3px;
        }
        
        .article-stats::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 2px;
        }
        
        .article-stats::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 2px;
        }
        
        /*seo*/
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .process-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        
        .process-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .process-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--secondary), var(--success));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.8rem;
        }
        
        .process-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .process-card p {
            color: #666;
            line-height: 1.6;
        }
        
        /* SEO优化部分 */
        .seo-optimization {
            background: white;
        }
        
        .seo-content {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }
        
        .seo-text-content {
            flex: 1;
            min-width: 300px;
        }
        
        .seo-chart-content {
            flex: 1;
            min-width: 300px;
        }
        
        .seo-problems, .seo-solutions {
            background: var(--light);
            padding: 30px;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        
        .seo-problems h3, .seo-solutions h3 {
            font-size: 1.6rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .seo-problems ul, .seo-solutions ul {
            list-style: none;
            padding-left: 20px;
        }
        
        .seo-problems li, .seo-solutions li {
            margin-bottom: 12px;
            padding-left: 25px;
            position: relative;
            line-height: 1.6;
        }
        
        .seo-problems li::before, .seo-solutions li::before {
            content: '•';
            color: var(--secondary);
            font-size: 1.5rem;
            position: absolute;
            left: 0;
            top: -5px;
        }
        
        .seo-solutions {
            background: white;
            box-shadow: var(--shadow);
        }
        
        /* 表格部分样式 */
        .chart-container {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            
        }
        
        .chart-title {
            text-align: center;
            margin-bottom: 30px;
            font-size: 1.5rem;
            color: var(--primary);
        }
        
        .performance-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            border-radius: 10px;
            overflow: hidden;
        }
        
        .performance-table th {
            background: linear-gradient(to right, var(--secondary), var(--success));
            color: white;
            padding: 15px;
            text-align: center;
            font-weight: 600;
            font-size: 1.1rem;
        }
        
        .performance-table td {
            padding: 15px;
            text-align: center;
            border-bottom: 1px solid #eee;
            transition: var(--transition);
        }
        
        .performance-table tr:hover td {
            background-color: rgba(52, 152, 219, 0.05);
        }
        
        .performance-table tr:last-child td {
            border-bottom: none;
        }
        
        .month-label {
            font-weight: 600;
            color: var(--primary);
        }
        
        .before-value {
            color: #e74c3c;
            font-weight: 600;
        }
        
        .after-value {
            color: var(--success);
            font-weight: 600;
        }
        
        .growth-value {
            color: var(--secondary);
            font-weight: 700;
            font-size: 1.1rem;
        }
        
        .growth-high {
            background-color: rgba(46, 204, 113, 0.1);
        }
        
        /* 效果提升描述部分 */
        .improvement-description {
            margin-top: 40px;
            padding: 30px;
            background: var(--light);
            border-radius: 10px;
        }
        
        .improvement-description h3 {
            font-size: 1.6rem;
            margin-bottom: 20px;
            color: var(--primary);
            text-align: center;
        }
        
        .improvement-description p {
            color: #555;
            line-height: 1.8;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        .improvement-description ul {
            padding-left: 20px;
            
        }
        
        .improvement-description li {
            margin-bottom: 12px;
            position: relative;
            line-height: 1.6;
            color: #555;
        }
        

        .cooperation-process {
            background: white;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 50px;
        }
        
        .process-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--light);
            z-index: 1;
        }
        
        .step {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .step-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--secondary), var(--success));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.8rem;
            margin-bottom: 20px;
            box-shadow: var(--shadow);
        }
        
        .step-content {
            text-align: center;
            padding: 0 15px;
        }
        
        .step-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .step-content p {
            color: #666;
            line-height: 1.6;
        }
        
        /* 百度算法部分 */
        .algorithms {
            background: var(--light);
        }
        
        .algorithms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .algorithm-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .algorithm-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .algorithm-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        
        .algorithm-card h3 i {
            margin-right: 10px;
            color: var(--secondary);
        }
        
        .algorithm-card p {
            color: #666;
            line-height: 1.6;
        }
        .seo-knowledge {
            background: var(--light);
        }
        
        .knowledge-content {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            padding: 25px 25px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            line-height: 1.7;
        }
        
        .knowledge-content h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        
        .knowledge-content h2:first-child {
            margin-top: 0;
        }
        
        .knowledge-content h3 {
            font-size: 1.5rem;
            color: var(--secondary);
            margin: 30px 0 15px;
        }
        
        .knowledge-content p {
            color: #555;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        /* 页脚样式 */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
.diqv{
    display: block;
    float: left;
    padding: 7px 15px;
    background: #bbd3ff;
    border-radius: 8px;
    margin-right: 8px;
    margin-bottom: 8px;
}
.city-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.city-list-grid .diqv {
    margin: 0;
    padding: 0;
}

.city-list-grid .diqv h3 {
    margin: 0;
    padding: 8px 5px;
    text-align: center;
    background: #e5e5e5;
    border-radius: 4px;
    transition: all 0.3s;
}

.city-list-grid .diqv h3:hover {
    background: #e0e0e0;
    transform: translateY(-2px);
}

.city-list-grid .diqv a {
    text-decoration: none;
    color: #333;
    display: block;
    width: 100%;

}