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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 5px;
    transition: all 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255,255,255,0.2);
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

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

.btn {
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 18px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: #ff6b6b;
    color: white;
}

.btn-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255,107,107,0.4);
}

.btn-secondary {
    background: white;
    color: #667eea;
}

.btn-secondary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #333;
}

.section-title span {
    color: #667eea;
}

.features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    font-size: 15px;
}

.markets {
    background: white;
}

.market-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.market-table th,
.market-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.market-table th {
    background: #667eea;
    color: white;
    font-weight: bold;
}

.market-table tr:hover {
    background: #f8f9ff;
}

.price-up {
    color: #00c853;
}

.price-down {
    color: #ff5252;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.news-image {
    height: 180px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.news-content {
    padding: 25px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.news-content p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.news-meta {
    color: #999;
    font-size: 13px;
}

.download-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.download-section h2 {
    color: white;
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
}

.download-btn {
    background: white;
    color: #667eea;
    padding: 20px 40px;
    border-radius: 10px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s;
}

.download-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.download-btn span {
    font-size: 30px;
}

footer {
    background: #1a1a2e;
    color: white;
    padding: 60px 0 30px;
}

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

.footer-about h3 {
    font-size: 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-about p {
    color: #aaa;
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: white;
}

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

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

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #888;
}

.about-content {
    background: white;
    padding: 60px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.about-content h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 28px;
}

.about-content p {
    margin-bottom: 20px;
    line-height: 2;
    color: #555;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-card ul {
    list-style: none;
    margin-top: 20px;
}

.product-card li {
    padding: 10px 0;
    color: #666;
    border-bottom: 1px solid #eee;
}

.product-card li:before {
    content: "✓";
    color: #00c853;
    margin-right: 10px;
    font-weight: bold;
}

.contact-form {
    background: white;
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #eee;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

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

.contact-info {
    margin-top: 50px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.info-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.info-card .icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.info-card h4 {
    margin-bottom: 10px;
    color: #333;
}

.info-card p {
    color: #666;
}

.breadcrumb {
    background: white;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
}

.breadcrumb span {
    color: #999;
}

@media (max-width: 992px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}