/* 基础样式 */
:root {
    /* 颜色变量 */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    --warning-color: #f97316;
    --success-color: #22c55e;
    
    /* 背景颜色 */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-modal: rgba(15, 23, 42, 0.95);
    
    /* 文字颜色 */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-accent: #60a5fa;
    
    /* 边框颜色 */
    --border-color: #334155;
    --border-light: #475569;
    --border-focus: #3b82f6;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* 过渡 */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-width: 1380px;
}

/* 粒子背景 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1600px;
    min-width: 1380px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.lang-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

.lang-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    width: 250px;
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-left: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-btn:hover {
    background: var(--primary-dark);
}

.connect-wallet-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.connect-wallet-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
}

.hero-container {
    max-width: 1600px;
    min-width: 1380px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary), var(--text-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-mono);
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-search {
    max-width: 600px;
}

.search-box {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.main-search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: var(--spacing-md);
    font-size: 1rem;
}

.main-search-input:focus {
    outline: none;
}

.main-search-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-fast);
}

.main-search-btn:hover {
    background: var(--primary-dark);
}

.search-suggestions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.suggestion-tag {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.suggestion-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.9rem;
}

.suggestion-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.hero-dashboard {
    max-width: 500px;
}

.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.network-stats {
    margin-bottom: var(--spacing-lg);
}

.network-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.network-item:last-child {
    border-bottom: none;
}

.network-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.network-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: var(--font-mono);
}

.network-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.network-change.positive {
    color: var(--success-color);
}

.network-change.negative {
    color: var(--danger-color);
}

.chart-container {
    height: 200px;
    position: relative;
}

/* 通用区域样式 */
.container {
    max-width: 1600px;
    min-width: 1380px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary), var(--text-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 区块链浏览器 */
.explorer {
    background: rgba(30, 41, 59, 0.3);
}

.explorer-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

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

.tab-content {
    display: none;
}

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

.data-table {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.table-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    align-items: center;
}

.table-cell {
    font-weight: 500;
    color: var(--text-secondary);
}

.table-body .table-row {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.table-body .table-row:hover {
    background: rgba(37, 99, 235, 0.05);
}

.table-body .table-row:last-child {
    border-bottom: none;
}

.table-body .table-cell {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.tokens-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.token-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-fast);
}

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

.gas-tracker-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.gas-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.gas-stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.gas-type {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.gas-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
}

.gas-time {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.gas-chart {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    height: 300px;
}

/* 数据分析 */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.analytics-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.analytics-card .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.time-selector {
    display: flex;
    gap: var(--spacing-sm);
}

.time-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.9rem;
}

.time-btn.active,
.time-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.market-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
}

.metric-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-value {
    color: var(--text-primary);
    font-weight: 700;
    font-family: var(--font-mono);
}

.metric-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.metric-change.positive {
    color: var(--success-color);
}

.metric-change.negative {
    color: var(--danger-color);
}

.network-selector {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
}

.activity-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
}

.activity-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.activity-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.activity-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.activity-value {
    color: var(--text-primary);
    font-weight: 700;
    font-family: var(--font-mono);
}

.refresh-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.refresh-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.contracts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contract-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.contract-item:hover {
    background: rgba(37, 99, 235, 0.1);
}

.address-input-container {
    display: flex;
    gap: var(--spacing-sm);
}

.address-input {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.address-input:focus {
    outline: none;
    border-color: var(--border-focus);
}

.analyze-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
}

.analyze-btn:hover {
    background: var(--primary-dark);
}

.address-analysis-result {
    margin-top: var(--spacing-lg);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.analysis-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.analysis-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* DeFi监控 */
.defi {
    background: rgba(30, 41, 59, 0.3);
}

.defi-overview {
    margin-bottom: var(--spacing-2xl);
}

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

.defi-stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: var(--transition-fast);
}

.defi-stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

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

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.protocols-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.protocols-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.protocol-filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.protocols-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.protocol-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-fast);
}

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

/* API服务 */
.api-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    align-items: start;
}

.api-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.api-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

.api-demo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.code-editor {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.editor-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.editor-tabs {
    display: flex;
    gap: var(--spacing-md);
}

.tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

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

.copy-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.editor-content {
    padding: var(--spacing-lg);
}

.editor-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-primary);
    overflow-x: auto;
}

.api-response {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.response-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.status-code {
    background: var(--success-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.response-content {
    padding: var(--spacing-lg);
}

.response-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-primary);
    overflow-x: auto;
}

.api-pricing h3 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-2xl);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    position: relative;
    transition: var(--transition-fast);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
}

.plan-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.plan-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xl);
    font-family: var(--font-mono);
}

.plan-price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.plan-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.feature {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.plan-btn {
    width: 100%;
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.plan-btn:hover {
    background: var(--primary-dark);
}

/* 开发工具 */
.tools {
    background: rgba(30, 41, 59, 0.3);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: var(--transition-fast);
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.tool-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto var(--spacing-lg);
}

.tool-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.tool-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.tool-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.feature-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 500;
}

.tool-btn {
    background: var(--primary-color);
    border: none;
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tool-btn:hover {
    background: var(--primary-dark);
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 400px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.brand-logo i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.brand-logo span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.link-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-modal);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .api-content {
        grid-template-columns: 1fr;
    }
    
    .gas-tracker-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .explorer-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
    }
    
    .table-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .protocols-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .main-search-btn {
        width: 100%;
        justify-content: center;
    }
    
    .analytics-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(37, 99, 235, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 通知样式 */
.notification {
    position: fixed;
    top: 90px;
    right: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1500;
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.success {
    border-left: 4px solid var(--success-color);
}

.notification.error {
    border-left: 4px solid var(--danger-color);
}

.notification.warning {
    border-left: 4px solid var(--warning-color);
}

.notification.info {
    border-left: 4px solid var(--primary-color);
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 高亮效果 */
.highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    animation: highlightPulse 2s ease-in-out infinite;
}

@keyframes highlightPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }
}

/* ============================================
   智能合约分析模块样式 (整合自 io1)
   ============================================ */
.contracts {
    background: rgba(30, 41, 59, 0.5);
    padding: 100px 0;
}

.contracts-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.contracts-features .feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contracts-features .feature-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    padding: var(--spacing-lg);
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.contracts-features .feature-item:hover {
    background: rgba(37, 99, 235, 0.1);
    transform: translateX(10px);
    border-color: var(--primary-color);
}

.contracts-features .feature-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.contracts-features .feature-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* 合约演示容器 */
.contracts-demo .demo-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.contracts-demo .demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.contracts-demo .demo-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contracts-demo .demo-tabs {
    display: flex;
    gap: var(--spacing-sm);
}

.contracts-demo .contract-tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.contracts-demo .contract-tab-btn.active,
.contracts-demo .contract-tab-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.contracts-demo .demo-content {
    padding: var(--spacing-xl);
}

.contracts-demo .contract-tab-content {
    display: none;
}

.contracts-demo .contract-tab-content.active {
    display: block;
}

/* 合约信息 */
.contracts-demo .contract-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contracts-demo .info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
}

.contracts-demo .info-row .label {
    color: var(--text-secondary);
    font-weight: 500;
}

.contracts-demo .info-row .value {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* 代码预览 */
.contracts-demo .code-preview {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.contracts-demo .code-preview pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.contracts-demo .code-preview code {
    color: #60a5fa;
}

/* 安全报告 */
.contracts-demo .security-report {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.contracts-demo .security-score {
    text-align: center;
}

.contracts-demo .score-circle {
    width: 100px;
    height: 100px;
    border: 4px solid var(--success-color);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(34, 197, 94, 0.1);
    animation: scoreGlow 2s ease-in-out infinite;
}

@keyframes scoreGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(34, 197, 94, 0.3); }
    50% { box-shadow: 0 0 40px rgba(34, 197, 94, 0.5); }
}

.contracts-demo .score-circle .score {
    font-size: 2rem;
    font-weight: 800;
    color: var(--success-color);
}

.contracts-demo .score-circle .score-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.contracts-demo .security-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contracts-demo .security-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.contracts-demo .security-item.safe {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success-color);
}

.contracts-demo .security-item.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.contracts-demo .security-item i {
    font-size: 1.1rem;
}

/* ============================================
   多链网络支持模块样式 (整合自 io1)
   ============================================ */
.networks {
    padding: 100px 0;
}

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

.network-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.network-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.network-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(37, 99, 235, 0.1);
    border-color: var(--primary-color);
}

.network-card:hover::before {
    transform: scaleX(1);
}

.network-card .network-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, #627eea, #8b5cf6);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    transition: var(--transition-normal);
}

.network-card:hover .network-icon {
    transform: scale(1.1);
}

.network-card .network-icon.bsc {
    background: linear-gradient(135deg, #f0b90b, #fcd535);
}

.network-card .network-icon.polygon {
    background: linear-gradient(135deg, #8247e5, #7b3fe4);
}

.network-card .network-icon.arbitrum {
    background: linear-gradient(135deg, #28a0f0, #1d4ed8);
}

.network-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.network-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.network-card .network-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.network-card .network-stats span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.network-card .network-stats strong {
    color: var(--primary-color);
    font-weight: 700;
}

/* ============================================
   响应式设计 - 新增模块
   ============================================ */
@media (max-width: 1024px) {
    .contracts-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .contracts-demo .security-report {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .networks-grid {
        grid-template-columns: 1fr;
    }
    
    .contracts-features .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contracts-features .feature-item:hover {
        transform: translateY(-5px);
    }
    
    .contracts-demo .demo-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .contracts-demo .demo-tabs {
        width: 100%;
        justify-content: center;
    }
    
    .contracts-demo .info-row {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .contracts-demo .score-circle {
        margin: 0 auto var(--spacing-lg);
    }
}