/* 通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 1rem;
    opacity: 0.9;
}

/* 导航样式 */
nav {
    background: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

nav a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

nav a:hover {
    background: #667eea;
    color: white;
}

/* 主要内容样式 */
main {
    padding: 2rem 0;
}

.content {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

h1, h2, h3, h4, h5, h6 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    border-bottom: 3px solid #667eea;
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 2rem;
    margin-top: 2rem;
    color: #667eea;
}

h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    color: #5a67d8;
}

h4 {
    font-size: 1.2rem;
    margin-top: 1rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* 代码样式 */
code {
    background: #f1f3f4;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    color: #e91e63;
}

pre {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin: 1rem 0;
    border-left: 4px solid #667eea;
}

pre code {
    background: none;
    padding: 0;
    color: #333;
}

/* 列表样式 */
ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* 链接样式 */
a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #5a67d8;
    text-decoration: underline;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

/* 警告框样式 */
.alert {
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 5px;
    border-left: 4px solid;
}

.alert-info {
    background: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.alert-warning {
    background: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert-danger {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

/* 面包屑导航 */
.breadcrumb {
    background: #e9ecef;
    padding: 0.75rem 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: #6c757d;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #495057;
}

/* 侧边栏样式 */
.sidebar {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.sidebar ul {
    list-style: none;
    margin-left: 0;
}

.sidebar li {
    margin-bottom: 0.5rem;
}

.sidebar a {
    color: #6c757d;
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
    transition: color 0.3s ease;
}

.sidebar a:hover {
    color: #667eea;
}

/* 两列布局 */
.two-column {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 2rem;
}

/* 页脚样式 */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .two-column {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        order: -1;
    }
    
    .content {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #5a67d8;
    color: white;
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 高亮样式 */
.highlight {
    background: #fff3cd;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #667eea;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.back-to-top:hover {
    opacity: 1;
    color: white;
} 

/* 工具卡片网格 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.tool-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    transition: box-shadow 0.3s ease;
}

.tool-card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.tool-card h4 {
    color: #4285f4;
    margin-top: 0;
}

/* 流程图样式 */
.flow-diagram {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin: 20px 0;
}

.flow-step {
    background: #f8f9fa;
    border-left: 4px solid #4285f4;
    padding: 15px;
    border-radius: 0 8px 8px 0;
}

.flow-step h3 {
    color: #4285f4;
    margin-top: 0;
}

/* 优势卡片网格 */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.benefit-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

.benefit-card h3 {
    color: #4285f4;
    margin-top: 0;
}

/* 方法卡片 */
.method-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin: 15px 0;
}

/* 配置文件网格 */
.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.profile-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
}

.profile-card h4 {
    color: #4285f4;
    margin-top: 0;
}

/* 故障排除样式 */
.troubleshooting-section {
    background: #fff5f5;
    border: 1px solid #fed7d7;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
}

.troubleshooting-section h4 {
    color: #e53e3e;
    margin-top: 0;
}

.troubleshooting-item {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
}

.troubleshooting-item h4 {
    color: #dc3545;
    margin-top: 0;
}

/* 最佳实践样式 */
.best-practice {
    background: #f0f8ff;
    border-left: 4px solid #4285f4;
    padding: 15px;
    margin: 15px 0;
    border-radius: 0 8px 8px 0;
}

.best-practice h3 {
    color: #4285f4;
    margin-top: 0;
}

/* 安全注意事项 */
.security-notes {
    margin: 20px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tool-grid,
    .benefit-grid,
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-diagram {
        grid-template-columns: 1fr;
    }
}