/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #0a0e17;
    color: #e0e0e0;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 头部样式 */
header {
    background-color: #121827;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 255, 170, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #00ffaa;
}

.logo a {
    color: #00ffaa;
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #00ffaa;
}

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

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.register-btn {
    background-color: #00ffaa;
    color: #0a0e17;
}

.register-btn:hover {
    background-color: #00cc88;
    transform: translateY(-2px);
}

.download-btn {
    background-color: transparent;
    color: #00ffaa;
    border: 1px solid #00ffaa;
}

.download-btn:hover {
    background-color: rgba(0, 255, 170, 0.1);
    transform: translateY(-2px);
}

/* 面包屑导航 */
.breadcrumb {
    padding: 20px 0;
    font-size: 14px;
    color: #888;
}

.breadcrumb a {
    color: #00ffaa;
    text-decoration: none;
}

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

/* 英雄区域 */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #121827 0%, #0a0e17 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,255,170,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-text {
    flex: 1;
    padding-right: 50px;
}

.hero h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #ffffff;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #b0b0b0;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
}

/* 特色区域 */
.features {
    padding: 100px 0;
    background-color: #0a0e17;
}

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

.section-title h2 {
    font-size: 36px;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 10px;
}

.section-title p {
    font-size: 16px;
    color: #888;
}

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

.feature-card {
    background-color: #121827;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 255, 170, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
    border-color: rgba(0, 255, 170, 0.5);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(0, 255, 170, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 24px;
    color: #00ffaa;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: #b0b0b0;
    font-size: 14px;
}

/* 数据可视化区域 */
.data-visualization {
    padding: 100px 0;
    background-color: #121827;
}

.chart-container {
    background-color: #0a0e17;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 255, 170, 0.1);
}

.chart-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #ffffff;
}

.chart-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, rgba(0, 255, 170, 0.1) 0%, rgba(0, 255, 170, 0.05) 100%);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00ffaa;
    font-size: 18px;
}

/* 会员体系 */
.membership {
    padding: 100px 0;
    background-color: #0a0e17;
}

.membership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.membership-card {
    background-color: #121827;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 255, 170, 0.1);
    text-align: center;
}

.membership-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
    border-color: rgba(0, 255, 170, 0.5);
}

.membership-card.featured {
    background-color: rgba(0, 255, 170, 0.1);
    border-color: #00ffaa;
}

.membership-card h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #ffffff;
}

.membership-card .price {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #00ffaa;
}

.membership-card ul {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.membership-card ul li {
    margin-bottom: 10px;
    color: #b0b0b0;
    font-size: 14px;
}

.membership-card ul li::before {
    content: '✓';
    color: #00ffaa;
    margin-right: 10px;
}

/* 新闻区域 */
.news {
    padding: 100px 0;
    background-color: #121827;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-card {
    background-color: #0a0e17;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 255, 170, 0.1);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
    border-color: rgba(0, 255, 170, 0.5);
}

.news-image {
    width: 100%;
    height: 200px;
    background-color: #121827;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00ffaa;
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: #888;
    margin-bottom: 10px;
}

.news-card h3 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #ffffff;
}

.news-card p {
    color: #b0b0b0;
    font-size: 14px;
    margin-bottom: 20px;
}

.news-card a {
    color: #00ffaa;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    transition: color 0.3s ease;
}

.news-card a:hover {
    color: #00cc88;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: #0a0e17;
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.about-text {
    flex: 1;
    padding-right: 50px;
}

.about-text h2 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #ffffff;
}

.about-text p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #b0b0b0;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
}

/* 交易平台 */
.trading-platform {
    padding: 100px 0;
    background-color: #121827;
}

.platform-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.platform-feature {
    background-color: #0a0e17;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 255, 170, 0.1);
}

.platform-feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
    border-color: rgba(0, 255, 170, 0.5);
}

.platform-feature h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #ffffff;
}

.platform-feature p {
    color: #b0b0b0;
    font-size: 14px;
}

/* 会员中心 */
.membership-center {
    padding: 100px 0;
    background-color: #0a0e17;
}

.membership-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.benefit-card {
    background-color: #121827;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 255, 170, 0.1);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 170, 0.2);
    border-color: rgba(0, 255, 170, 0.5);
}

.benefit-card h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #ffffff;
}

.benefit-card p {
    color: #b0b0b0;
    font-size: 14px;
}

/* 网站地图 */
.sitemap {
    padding: 100px 0;
    background-color: #0a0e17;
}

.sitemap-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.sitemap-section h2 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #00ffaa;
}

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

.sitemap-section ul li {
    margin-bottom: 10px;
}

.sitemap-section ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.sitemap-section ul li a:hover {
    color: #00ffaa;
}

/* 页脚 */
footer {
    background-color: #121827;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(0, 255, 170, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #00ffaa;
}

.footer-section p {
    color: #b0b0b0;
    font-size: 14px;
    margin-bottom: 10px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #00ffaa;
}

.footer-bottom {
    border-top: 1px solid rgba(0, 255, 170, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: #888;
    font-size: 14px;
}

.footer-bottom a {
    color: #00ffaa;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .about-text {
        padding-right: 0;
        margin-bottom: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .header-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .feature-card,
    .membership-card,
    .news-card,
    .platform-feature,
    .benefit-card {
        padding: 30px;
    }
}