/* CryptoXchange - 专业数字货币交易所样式表 */
/* SEO优化 - 响应式设计 - 币圈风格 */

:root {
    --primary-color: #00d4ff;
    --secondary-color: #0066ff;
    --accent-color: #ff6b35;
    --dark-bg: #0a0e1a;
    --darker-bg: #050810;
    --card-bg: #111827;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0066ff 100%);
    --gradient-dark: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);
    --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--darker-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 20px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow);
}

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 16px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--darker-bg);
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    color: var(--primary-color);
    font-size: 14px;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* 行情展示区域 */
.ticker-section {
    background: var(--card-bg);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    padding: 20px 0;
    overflow: hidden;
}

.ticker-wrap {
    display: flex;
    animation: ticker 30s linear infinite;
}

.ticker-item {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 0 30px;
    white-space: nowrap;
}

.ticker-coin {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ticker-coin-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
}

.ticker-coin-info {
    display: flex;
    flex-direction: column;
}

.ticker-coin-name {
    font-weight: 600;
    font-size: 14px;
}

.ticker-coin-price {
    font-size: 16px;
    font-weight: 700;
}

.ticker-coin-change {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
}

.ticker-coin-change.up {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.ticker-coin-change.down {
    color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

@keyframes ticker {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* 通用区块样式 */
.section {
    padding: 100px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50px;
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 特性卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow-card);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 25px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 产品卡片 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow-card);
}

.product-image {
    width: 100%;
    height: 200px;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.product-content {
    padding: 30px;
}

.product-tag {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50px;
    color: var(--primary-color);
    font-size: 12px;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.product-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-features {
    list-style: none;
    margin-bottom: 25px;
}

.product-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
}

/* 新闻卡片 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow-card);
}

.news-image {
    width: 100%;
    height: 200px;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.news-content {
    padding: 25px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--text-secondary);
}

.news-category {
    color: var(--primary-color);
}

.news-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-card h3 a:hover {
    color: var(--primary-color);
}

.news-excerpt {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.3s ease;
}

.read-more:hover {
    gap: 10px;
}

/* CTA区域 */
.cta-section {
    background: var(--gradient-primary);
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 100px 100px;
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta-section .btn {
    background: white;
    color: var(--secondary-color);
}

.cta-section .btn:hover {
    background: var(--dark-bg);
    color: white;
}

/* 页脚 */
.footer {
    background: var(--darker-bg);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    padding: 80px 20px 30px;
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin: 20px 0;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 25px;
    color: var(--text-primary);
}

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

.footer-links li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
}

.footer-bottom-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

/* 面包屑导航 */
.breadcrumb {
    background: var(--card-bg);
    padding: 20px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.breadcrumb-container {
    max-width: 1400px;
    margin: 0 auto;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 10px;
    flex-wrap: wrap;
}

.breadcrumb-list li {
    color: var(--text-secondary);
}

.breadcrumb-list a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-list a:hover {
    text-decoration: underline;
}

/* 页面标题 */
.page-header {
    background: var(--gradient-dark);
    padding: 150px 20px 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 15px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 18px;
}

/* 内容区域 */
.content-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 20px;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.main-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-widget {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(0, 212, 255, 0.1);
}

.sidebar-widget h3 {
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.sidebar-widget a {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s ease;
}

.sidebar-widget a:hover {
    color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud a {
    padding: 8px 15px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
}

.tag-cloud a:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
}

/* 文章样式 */
.article-content h2 {
    font-size: 28px;
    margin: 40px 0 20px;
    color: var(--primary-color);
}

.article-content h3 {
    font-size: 22px;
    margin: 30px 0 15px;
}

.article-content p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
    color: var(--text-secondary);
    margin-bottom: 20px;
    padding-left: 25px;
}

.article-content li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.article-content img {
    width: 100%;
    border-radius: 10px;
    margin: 30px 0;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    flex-wrap: wrap;
}

.article-meta span {
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.data-table th {
    background: rgba(0, 212, 255, 0.05);
    font-weight: 600;
    color: var(--primary-color);
}

.data-table tr:hover {
    background: rgba(0, 212, 255, 0.02);
}

/* 联系表单 */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 15px;
    background: var(--dark-bg);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.pagination a,
.pagination span {
    padding: 12px 18px;
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination .current {
    background: var(--primary-color);
    color: var(--dark-bg);
    border-color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 42px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-buttons {
        display: none;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-value {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .features-grid,
    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .section {
        padding: 60px 15px;
    }
    
    .feature-card,
    .product-card,
    .news-card,
    .main-content,
    .sidebar-widget {
        padding: 25px;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* 延迟动画类 */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* 内链样式 */
.internal-link {
    color: var(--primary-color);
    text-decoration: underline;
    text-decoration-color: rgba(0, 212, 255, 0.3);
    transition: all 0.3s ease;
}

.internal-link:hover {
    text-decoration-color: var(--primary-color);
}

/* 强调文字 */
.highlight {
    background: rgba(0, 212, 255, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--primary-color);
}

/* 引用块 */
blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 20px;
    margin: 30px 0;
    color: var(--text-secondary);
    font-style: italic;
}