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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #00f5d4;
}

.header-actions {
    display: flex;
    gap: 10px;
}

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

.btn-primary {
    background: linear-gradient(135deg, #00f5d4 0%, #00b8a9 100%);
    color: #1a1a2e;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,245,212,0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 1px solid #00f5d4;
}

.btn-secondary:hover {
    background: rgba(0,245,212,0.1);
}

/* 导航样式 */
nav {
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 10px;
}

.nav-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
}

.nav-list li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 10px 15px;
    border-radius: 5px;
}

.nav-list li a:hover {
    color: #00f5d4;
    background: rgba(0,245,212,0.1);
}

/* 面包屑导航 */
.breadcrumb {
    margin: 20px 0;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #00b8a9;
    text-decoration: none;
}

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

/* 主内容区 */
main {
    padding: 40px 0;
    min-height: 600px;
}

.section-title {
    font-size: 32px;
    font-weight: bold;
    color: #1a1a2e;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #00f5d4, #00b8a9);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    margin-bottom: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #00f5d4;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

/* 特色区块 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.feature-card p {
    color: #666;
    margin-bottom: 20px;
}

/* 产品区块 */
.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card-content {
    padding: 20px;
}

.product-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #1a1a2e;
}

.product-card p {
    color: #666;
    margin-bottom: 15px;
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 40px 0;
}

.news-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.news-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #1a1a2e;
}

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

.news-item h3 a:hover {
    color: #00b8a9;
}

.news-meta {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
}

.news-excerpt {
    color: #666;
    margin-bottom: 15px;
}

/* 新闻详情 */
.news-detail {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-detail h1 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #1a1a2e;
}

.news-detail-meta {
    font-size: 14px;
    color: #999;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.news-content {
    line-height: 1.8;
    color: #333;
}

.news-content p {
    margin-bottom: 20px;
}

.news-content h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: #1a1a2e;
}

/* 关于页面 */
.about-content {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 40px;
}

.about-content h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: #1a1a2e;
}

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

/* 联系页面 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 40px 0;
}

.contact-info {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-info h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #1a1a2e;
}

.contact-item {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #1a1a2e;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

/* 页脚 */
footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #00f5d4;
}

.footer-section p,
.footer-section li {
    margin-bottom: 10px;
    color: rgba(255,255,255,0.8);
}

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

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #00f5d4;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .news-detail {
        padding: 20px;
    }
    
    .about-content {
        padding: 20px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,245,212,0.3);
    border-radius: 50%;
    border-top-color: #00f5d4;
    animation: spin 1s ease-in-out infinite;
}

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

/* 强调文本 */
.highlight {
    color: #00f5d4;
    font-weight: bold;
}

/* 卡片阴影效果 */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* 按钮样式增强 */
.btn-lg {
    padding: 15px 30px;
    font-size: 18px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* 响应式导航菜单 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-list {
        display: none;
        flex-direction: column;
        gap: 10px;
        margin-top: 15px;
    }
    
    .nav-list.active {
        display: flex;
    }
}