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

:root {
    --primary: #1890ff;
    --primary-dark: #096dd9;
    --primary-light: #40a9ff;
    --secondary: #722ed1;
    --success: #52c41a;
    --danger: #ff4d4f;
    --warning: #faad14;
    --info: #1890ff;
    --bg: #f0f2f5;
    --bg-light: #fafafa;
    --card-bg: #ffffff;
    --text: #262626;
    --text-secondary: #595959;
    --text-light: #8c8c8c;
    --border: #d9d9d9;
    --border-light: #f0f0f0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
    --gradient-primary: linear-gradient(135deg, #1890ff 0%, #096dd9 100%);
    --gradient-hero: linear-gradient(135deg, #1890ff 0%, #722ed1 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 14px;
}

/* 导航栏 */
.navbar {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
}

.navbar-brand .logo {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.navbar-menu {
    display: flex;
    gap: 32px;
    align-items: center;
    list-style: none;
}

.navbar-menu a {
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s;
    position: relative;
}

.navbar-menu a:hover {
    color: var(--primary);
}

.navbar-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

.navbar-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 按钮 */
.btn {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

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

.btn-sm {
    padding: 6px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 32px;
    font-size: 16px;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-fluid {
    width: 100%;
    padding: 0 24px;
}

/* Hero区域 */
.hero {
    background: var(--gradient-hero);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions .btn {
    min-width: 160px;
}

/* 特性卡片 */
.features {
    padding: 80px 0;
    background: var(--card-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.feature-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border-light);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 使用场景 */
.use-cases {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
}

.section-title p {
    font-size: 16px;
    color: var(--text-secondary);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.use-case-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.use-case-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.use-case-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1890ff 0%, #722ed1 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}

.use-case-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
}

.use-case-card ul {
    list-style: none;
    padding: 0;
}

.use-case-card li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.use-case-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* 头部 */
.header {
    background: var(--gradient-hero);
    color: white;
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.header h1 {
    font-size: 28px;
    margin-bottom: 8px;
}

.header p {
    opacity: 0.9;
    font-size: 15px;
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    margin-top: 12px;
    font-weight: 500;
}

.status-badge.online {
    background: rgba(82, 196, 26, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.status-badge.offline {
    background: rgba(255, 77, 79, 0.2);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* 导航标签 */
.nav-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--card-bg);
    padding: 8px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
}

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

.tab-btn.active {
    background: var(--primary);
    color: white;
}

/* 标签内容 */
.tab-content {
    display: none;
    background: var(--card-bg);
    padding: 32px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.tab-content.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.stat-card {
    background: var(--gradient-primary);
    color: white;
    padding: 24px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.stat-card h3 {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 12px;
    font-weight: 500;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
}

/* 卡片 */
.card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    margin-bottom: 24px;
}

.card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text);
}

/* 表格 */
.data-table {
    margin-top: 24px;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
}

.table th,
.table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text);
    font-size: 14px;
}

.table tr:hover {
    background: var(--bg-light);
}

.table tr:last-child td {
    border-bottom: none;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.1);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal-content h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text);
}

/* 配置查看器 */
.config-viewer {
    margin-top: 24px;
}

.config-code {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 20px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'Courier New', 'Consolas', monospace;
    font-size: 13px;
    margin-top: 12px;
    line-height: 1.6;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge.active {
    background: rgba(82, 196, 26, 0.1);
    color: var(--success);
}

.badge.inactive {
    background: rgba(140, 140, 140, 0.1);
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: var(--card-bg);
    padding: 48px 0;
    margin-top: 80px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
    color: var(--text-light);
    font-size: 13px;
}

.footer-bottom p {
    margin: 4px 0;
    line-height: 1.6;
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .nav-tabs {
        flex-wrap: wrap;
    }
    
    .stats-grid,
    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}

/* 工具类 */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }