/* ========================================
   全局样式
======================================== */
:root {
    /* 主色调 */
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #7f9cf5;
    
    /* 辅助色 */
    --secondary-color: #f093fb;
    --accent-color: #4fd1c5;
    
    /* 功能色 */
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --info-color: #4299e1;
    
    /* 中性色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --bg-dark: #1a202c;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --text-light: #a0aec0;
    
    /* 边框 */
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   导航栏
======================================== */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.nav-link.active {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(240, 147, 251, 0.1));
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* ========================================
   Hero 区域
======================================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    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"><rect width="100" height="100" fill="none"/><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
}

.hero-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.hero-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.hero-card i {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.hero-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.hero-card p {
    opacity: 0.9;
    font-size: 0.95rem;
}

/* ========================================
   Section 通用样式
======================================== */
.section {
    padding: var(--spacing-xl) 0;
}

.section.bg-alt {
    background: var(--bg-primary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
}

.section-title i {
    color: var(--primary-color);
}

/* ========================================
   内容卡片
======================================== */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.info-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.info-icon.checkin-color {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.info-icon.snipe-color {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.info-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

.feature-list i {
    color: var(--success-color);
    font-size: 0.85rem;
}

/* ========================================
   步骤卡片
======================================== */
.step-container {
    display: grid;
    gap: var(--spacing-lg);
}

.step-card {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.instruction-list {
    list-style: none;
    padding-left: 0;
}

.instruction-list li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.instruction-list li::before {
    content: '→';
    color: var(--primary-color);
    font-weight: bold;
}

.instruction-list code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--primary-dark);
}

/* ========================================
   代码块
======================================== */
.code-block {
    background: var(--bg-dark);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-lg);
}

.code-header {
    background: #2d3748;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-language {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.copy-btn {
    background: rgba(79, 209, 197, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--accent-color);
    color: var(--bg-dark);
}

.copy-btn.copied {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.code-block pre {
    margin: 0;
    padding: var(--spacing-md);
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    color: #e2e8f0;
    display: block;
}

/* ========================================
   流程图
======================================== */
.flow-diagram {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.flow-diagram h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.flow-chart {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) 0;
}

.flow-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.flow-box {
    background: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    min-width: 200px;
    justify-content: center;
    transition: all 0.3s ease;
}

.flow-box:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.flow-box.trigger {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: #667eea;
}

.flow-box.logic {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
    border-color: #f093fb;
}

.flow-box.action {
    background: linear-gradient(135deg, #4fd1c5, #3182ce);
    color: white;
    border-color: #4fd1c5;
}

.flow-box.api {
    background: linear-gradient(135deg, #ed8936, #dd6b20);
    color: white;
    border-color: #ed8936;
}

.flow-box.result {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    border-color: #48bb78;
}

.flow-box.cron {
    background: linear-gradient(135deg, #9f7aea, #805ad5);
    color: white;
    border-color: #9f7aea;
}

.flow-box.success {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    border-color: #48bb78;
}

.flow-box.warning {
    background: linear-gradient(135deg, #ed8936, #dd6b20);
    color: white;
    border-color: #ed8936;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: var(--spacing-xs) 0;
}

.flow-branches {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.branch-item {
    flex: 1;
    min-width: 180px;
}

/* ========================================
   节点配置
======================================== */
.node-configs {
    margin-top: var(--spacing-xl);
}

.node-configs h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.config-tabs {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

.tab-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
    transition: all 0.3s ease;
    position: relative;
}

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

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

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   命令配置
======================================== */
.command-config {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
}

.command-config h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.command-config h3 i {
    color: #0088cc;
}

.command-config > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.command-list {
    display: grid;
    gap: var(--spacing-sm);
}

.command-item {
    background: var(--bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-left: 3px solid var(--primary-color);
}

.command-item code {
    background: var(--bg-dark);
    color: var(--accent-color);
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-mono);
    font-weight: 600;
    min-width: 120px;
}

.command-item span {
    color: var(--text-secondary);
    flex: 1;
}

/* ========================================
   安全配置
======================================== */
.security-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.security-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.security-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.security-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.security-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.security-list {
    list-style: none;
    padding-left: 0;
}

.security-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

.security-list i {
    color: var(--success-color);
    margin-top: 3px;
    flex-shrink: 0;
}

/* ========================================
   部署步骤
======================================== */
.deployment-steps {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.deploy-step {
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.deploy-step:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.deploy-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.deploy-content {
    flex: 1;
}

.deploy-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.deploy-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.deploy-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--primary-dark);
}

.deploy-list {
    list-style: none;
    padding-left: 0;
}

.deploy-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

.deploy-list i {
    color: var(--primary-color);
}

.deploy-action {
    margin-top: var(--spacing-sm);
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   工作流特性
======================================== */
.workflow-features {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.workflow-features h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.feature-tag {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(240, 147, 251, 0.1));
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
    border: 1px solid var(--primary-light);
}

.feature-tag i {
    color: var(--success-color);
}

/* ========================================
   页脚
======================================== */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: var(--text-light);
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--text-light);
}

/* ========================================
   回到顶部按钮
======================================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.back-to-top.show {
    display: flex;
}

/* ========================================
   响应式设计
======================================== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cards {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-branches {
        flex-direction: column;
    }
    
    .config-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .tab-btn {
        white-space: nowrap;
    }
    
    .code-block pre {
        font-size: 0.8rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .step-card,
    .deploy-step {
        flex-direction: column;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

/* ========================================
   打印样式
======================================== */
@media print {
    .navbar,
    .back-to-top,
    .footer {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
    
    .code-block {
        page-break-inside: avoid;
    }
}