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

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.8;
    color: #333;
    background: #f5f5f5;
}

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

.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #f39c12;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span {
    font-size: 32px;
}

.nav {
    display: flex;
    gap: 40px;
}

.nav a {
    color: #ecf0f1;
    text-decoration: none;
    font-size: 16px;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav a:hover {
    background: #f39c12;
    color: #1a1a2e;
}

.banner {
    background: linear-gradient(135deg, #f39c12 0%, #e74c3c 100%);
    padding: 80px 0;
    text-align: center;
    color: white;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.banner p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 30px;
}

.banner-btn {
    display: inline-block;
    background: #1a1a2e;
    color: #f39c12;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.banner-btn:hover {
    transform: scale(1.05);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    color: #1a1a2e;
    margin-bottom: 15px;
}

.section-title p {
    color: #666;
    font-size: 18px;
}

.bg-white {
    background: white;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    color: #1a1a2e;
    margin-bottom: 15px;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

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

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

.product-card:hover {
    transform: translateY(-5px);
}

.product-img {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
}

.product-content {
    padding: 30px;
}

.product-content h3 {
    font-size: 22px;
    color: #1a1a2e;
    margin-bottom: 15px;
}

.product-content p {
    color: #666;
    margin-bottom: 20px;
}

.product-btn {
    display: inline-block;
    background: #f39c12;
    color: white;
    padding: 10px 25px;
    border-radius: 25px;
    text-decoration: none;
    transition: background 0.3s ease;
}

.product-btn:hover {
    background: #e67e22;
}

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

.news-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    display: flex;
    gap: 30px;
    transition: transform 0.3s ease;
}

.news-item:hover {
    transform: translateX(10px);
}

.news-date {
    background: #f39c12;
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    text-align: center;
    min-width: 100px;
}

.news-date .day {
    font-size: 28px;
    font-weight: bold;
}

.news-date .month {
    font-size: 14px;
}

.news-info h3 {
    font-size: 22px;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.news-info h3 a {
    color: #1a1a2e;
    text-decoration: none;
}

.news-info h3 a:hover {
    color: #f39c12;
}

.news-info p {
    color: #666;
    margin-bottom: 10px;
}

.news-meta {
    color: #999;
    font-size: 14px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 20px;
}

.about-text p {
    color: #666;
    margin-bottom: 20px;
    line-height: 2;
}

.about-img {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    height: 400px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
}

.contact-info {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.contact-info h3 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.contact-item span {
    font-size: 40px;
}

.contact-item div h4 {
    color: #1a1a2e;
    font-size: 18px;
    margin-bottom: 5px;
}

.contact-item div p {
    color: #666;
}

.contact-form {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.contact-form h3 {
    font-size: 28px;
    color: #1a1a2e;
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #1a1a2e;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #f39c12;
}

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

.submit-btn {
    background: #f39c12;
    color: white;
    padding: 15px 50px;
    border: none;
    border-radius: 30px;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: #e67e22;
}

.footer {
    background: #1a1a2e;
    padding: 60px 0 30px;
    color: #ecf0f1;
}

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

.footer-section h4 {
    font-size: 20px;
    color: #f39c12;
    margin-bottom: 20px;
}

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

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

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #f39c12;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    color: #7f8c8d;
}

.stats-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 80px 0;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item span {
    font-size: 60px;
}

.stat-item h3 {
    font-size: 48px;
    color: #f39c12;
    margin: 20px 0 10px;
}

.stat-item p {
    font-size: 18px;
    color: #bdc3c7;
}

.article-content {
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.article-header {
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 30px;
    margin-bottom: 30px;
}

.article-header h1 {
    font-size: 36px;
    color: #1a1a2e;
    margin-bottom: 20px;
}

.article-meta {
    color: #999;
    font-size: 14px;
}

.article-body {
    font-size: 18px;
    line-height: 2;
    color: #333;
}

.article-body p {
    margin-bottom: 25px;
}

.article-body h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin: 40px 0 20px;
}

.breadcrumb {
    padding: 20px 0;
    background: #f8f9fa;
    margin-bottom: 40px;
}

.breadcrumb .container a {
    color: #666;
    text-decoration: none;
}

.breadcrumb .container a:hover {
    color: #f39c12;
}

.breadcrumb .container span {
    color: #999;
    margin: 0 10px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 30px;
    color: #ecf0f1;
    cursor: pointer;
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .banner h1 {
        font-size: 32px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .news-item {
        flex-direction: column;
    }

    .article-content {
        padding: 30px 20px;
    }

    .contact-info,
    .contact-form {
        padding: 30px;
    }
}

.page-hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 60px 0;
    text-align: center;
    color: white;
}

.page-hero h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.page-hero p {
    font-size: 18px;
    color: #bdc3c7;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}