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

        html, body {
            height: 100%;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
            color: #333;
            line-height: 1.6;
        }

        /* 导航栏样式 */
        .vjh3-navbar-wrapper {
            background: linear-gradient(135deg, #0088cc 0%, #0077b6 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .vjh3-navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .vjh3-logo-section {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: white;
            font-weight: 700;
            font-size: 20px;
        }

        .vjh3-logo-section img {
            height: 40px;
            width: auto;
        }

        .vjh3-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .vjh3-nav-link {
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }

        .vjh3-nav-link:hover {
            opacity: 0.8;
        }

        .vjh3-nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: white;
            transition: width 0.3s ease;
        }

        .vjh3-nav-link:hover::after {
            width: 100%;
        }

        /* 响应式导航 */
        @media (max-width: 768px) {
            .vjh3-nav-menu {
                gap: 15px;
            }

            .vjh3-nav-link {
                font-size: 12px;
            }
        }

        /* 主容器 */
        .vjh3-main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 页面头部区域 */
        .vjh3-hero-section {
            background: linear-gradient(135deg, rgba(0, 136, 204, 0.1) 0%, rgba(0, 119, 182, 0.1) 100%);
            padding: 60px 20px;
            text-align: center;
            margin-bottom: 50px;
            border-radius: 10px;
        }

        .vjh3-hero-title {
            font-size: 48px;
            color: #0088cc;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .vjh3-hero-subtitle {
            font-size: 18px;
            color: #666;
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 主要内容区 */
        .vjh3-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 50px;
        }

        .vjh3-main-content {
            flex: 1;
        }

        .vjh3-sidebar {
            position: sticky;
            top: 100px;
            height: fit-content;
        }

        @media (max-width: 1024px) {
            .vjh3-content-wrapper {
                grid-template-columns: 1fr;
            }

            .vjh3-sidebar {
                position: static;
            }
        }

        /* H1标签样式 */
        .vjh3-main-title {
            font-size: 42px;
            color: #0088cc;
            margin-bottom: 30px;
            font-weight: 700;
        }

        /* 章节标题 */
        .vjh3-section-title {
            font-size: 28px;
            color: #0077b6;
            margin: 40px 0 20px 0;
            padding-bottom: 10px;
            border-bottom: 3px solid #0088cc;
            font-weight: 600;
        }

        .vjh3-subsection-title {
            font-size: 22px;
            color: #0088cc;
            margin: 25px 0 15px 0;
            font-weight: 600;
        }

        /* 步骤列表 */
        .vjh3-steps-container {
            margin: 30px 0;
        }

        .vjh3-step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 25px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid #0088cc;
            transition: all 0.3s ease;
        }

        .vjh3-step-item:hover {
            background: #f0f5fa;
            box-shadow: 0 4px 12px rgba(0, 136, 204, 0.1);
        }

        .vjh3-step-number {
            min-width: 40px;
            width: 40px;
            height: 40px;
            background: #0088cc;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }

        .vjh3-step-content {
            flex: 1;
        }

        .vjh3-step-content h3 {
            color: #0077b6;
            margin-bottom: 8px;
            font-size: 16px;
        }

        .vjh3-step-content p {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }

        /* 功能特性列表 */
        .vjh3-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }

        .vjh3-feature-card {
            padding: 20px;
            background: white;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .vjh3-feature-card:hover {
            border-color: #0088cc;
            box-shadow: 0 8px 20px rgba(0, 136, 204, 0.15);
            transform: translateY(-5px);
        }

        .vjh3-feature-card h3 {
            color: #0088cc;
            margin-bottom: 10px;
            font-size: 18px;
        }

        .vjh3-feature-card p {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }

        /* 提示框 */
        .vjh3-tip-box {
            background: #e3f2fd;
            border-left: 4px solid #0088cc;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 4px;
            font-size: 14px;
            color: #0077b6;
        }

        .vjh3-warning-box {
            background: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 4px;
            font-size: 14px;
            color: #e65100;
        }

        /* 侧边栏 */
        .vjh3-sidebar-box {
            background: white;
            border: 2px solid #0088cc;
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 20px;
        }

        .vjh3-sidebar-title {
            font-size: 18px;
            color: #0088cc;
            margin-bottom: 15px;
            font-weight: 700;
            border-bottom: 2px solid #0088cc;
            padding-bottom: 10px;
        }

        .vjh3-sidebar-list {
            list-style: none;
        }

        .vjh3-sidebar-list li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
        }

        .vjh3-sidebar-list li:last-child {
            border-bottom: none;
        }

        .vjh3-sidebar-list a {
            color: #0077b6;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
            display: block;
        }

        .vjh3-sidebar-list a:hover {
            color: #0088cc;
            padding-left: 5px;
        }

        /* CTA按钮 */
        .vjh3-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #0077b6 100%);
            color: white;
            padding: 50px;
            text-align: center;
            border-radius: 10px;
            margin: 50px 0;
        }

        .vjh3-cta-title {
            font-size: 32px;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .vjh3-cta-description {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
        }

        .vjh3-cta-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .vjh3-btn {
            padding: 14px 30px;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .vjh3-btn-primary {
            background: white;
            color: #0088cc;
        }

        .vjh3-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .vjh3-btn-secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .vjh3-btn-secondary:hover {
            background: white;
            color: #0088cc;
        }

        /* 页脚 */
        .vjh3-footer-wrapper {
            background: #1a1a1a;
            color: #ccc;
            padding: 40px 20px;
            margin-top: 80px;
        }

        .vjh3-footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid #333;
        }

        .vjh3-footer-section h3 {
            color: white;
            margin-bottom: 15px;
            font-size: 16px;
        }

        .vjh3-footer-section ul {
            list-style: none;
        }

        .vjh3-footer-section ul li {
            margin-bottom: 10px;
        }

        .vjh3-footer-section a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .vjh3-footer-section a:hover {
            color: #0088cc;
        }

        .vjh3-footer-bottom {
            max-width: 1200px;
            margin: 20px auto;
            text-align: center;
            font-size: 14px;
        }

        /* 表格样式 */
        .vjh3-comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .vjh3-comparison-table thead {
            background: #0088cc;
            color: white;
        }

        .vjh3-comparison-table th {
            padding: 15px;
            text-align: left;
            font-weight: 600;
        }

        .vjh3-comparison-table td {
            padding: 15px;
            border-bottom: 1px solid #e0e0e0;
        }

        .vjh3-comparison-table tbody tr:hover {
            background: #f8f9fa;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .vjh3-hero-title {
                font-size: 32px;
            }

            .vjh3-main-title {
                font-size: 28px;
            }

            .vjh3-section-title {
                font-size: 22px;
            }

            .vjh3-cta-section {
                padding: 30px 20px;
            }

            .vjh3-cta-title {
                font-size: 24px;
            }

            .vjh3-cta-buttons {
                flex-direction: column;
            }

            .vjh3-btn {
                width: 100%;
            }

            .vjh3-comparison-table {
                font-size: 12px;
            }

            .vjh3-comparison-table th,
            .vjh3-comparison-table td {
                padding: 10px;
            }
        }

        /* 段落样式 */
        .vjh3-paragraph {
            margin: 15px 0;
            color: #555;
            font-size: 15px;
            line-height: 1.8;
        }

        /* 强调文本 */
        .vjh3-highlight {
            color: #0088cc;
            font-weight: 600;
        }

        /* 代码块 */
        .vjh3-code-block {
            background: #f5f5f5;
            border-left: 4px solid #0088cc;
            padding: 15px;
            margin: 20px 0;
            border-radius: 4px;
            overflow-x: auto;
            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
            font-size: 14px;
            color: #333;
        }

        /* 图片容器 */
        .vjh3-image-container {
            margin: 30px 0;
            text-align: center;
        }

        .vjh3-image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .vjh3-image-caption {
            font-size: 13px;
            color: #999;
            margin-top: 10px;
        }