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

/* 基础样式 */
body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部通知条 */
.top-bar {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

.top-bar p {
    font-size: 14px;
}

/* 页头样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo img {
    max-height: 60px;
}

/* 导航样式 */
.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 40px;
}

.nav ul li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav ul li a:hover,
.nav ul li a.active {
    color: #e63946;
}

.nav ul li a.active::after,
.nav ul li a:hover::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #e63946;
    transition: width 0.3s ease;
}

/* 移动端菜单切换按钮 */
.mobile-menu-toggle {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 30px;
    height: 3px;
    background-color: #333;
    margin: 6px 0;
    transition: all 0.3s ease;
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: #fff;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
    transition: right 0.3s ease;
    padding-top: 100px;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu ul li {
    padding: 15px 20px;
}

.mobile-menu ul li a {
    text-decoration: none;
    color: #333;
    font-size: 18px;
    display: block;
    transition: color 0.3s ease;
}

.mobile-menu ul li a:hover,
.mobile-menu ul li a.active {
    color: #e63946;
}

/* 首页大图 */
.hero {
    position: relative;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

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

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #e63946;
}

.section-header p {
    color: #666;
    font-size: 16px;
}

/* 产品介绍样式 */
.products {
    padding: 100px 0;
    background-color: #fff;
}

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

.product-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.product-image {
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 20px;
    text-align: center;
}

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

.product-info p {
    font-size: 14px;
    color: #666;
}

/* 产品特色样式 */
.features {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.features-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    max-width: 40px;
    max-height: 40px;
}

.feature-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.feature-content p {
    font-size: 14px;
    color: #666;
}

/* 新闻资讯样式 */
.news {
    padding: 100px 0;
    background-color: #fff;
}

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

.news-article {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-article:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-article:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

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

.news-meta {
    margin-bottom: 15px;
    font-size: 12px;
    color: #999;
}

.news-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    flex-grow: 1;
}

/* 用户评价样式 */
.reviews {
    padding: 100px 0;
    background-color: #f8f9fa;
}

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

.review-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: flex-start;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.reviewer-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    flex-shrink: 0;
}

.reviewer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-content {
    flex-grow: 1;
}

.reviewer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reviewer-info h4 {
    font-size: 16px;
    color: #333;
}

.review-rating {
    font-size: 14px;
    color: #ffd700;
}

.review-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

/* 友情链接样式 */
.links {
    padding: 50px 0;
    background-color: #fff;
    border-top: 1px solid #eee;
}

.links h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #333;
}

.links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.links-container a {
    text-decoration: none;
    color: #666;
    font-size: 14px;
    transition: color 0.3s ease;
}

.links-container a:hover {
    color: #e63946;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-info p {
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .products-container,
    .features-container,
    .news-container,
    .reviews-container {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .hero {
        height: 60vh;
        min-height: 400px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .products,
    .features,
    .news,
    .reviews {
        padding: 80px 0;
    }
    
    .products-container,
    .features-container,
    .news-container,
    .reviews-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 576px) {
    .hero {
        height: 50vh;
        min-height: 300px;
    }
    
    .hero-content h1 {
        font-size: 24px;
    }
    
    .hero-content p {
        font-size: 14px;
    }
    
    .section-header h2 {
        font-size: 20px;
    }
    
    .products-container,
    .features-container,
    .news-container,
    .reviews-container {
        grid-template-columns: 1fr;
    }
    
    .review-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .reviewer-avatar {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .reviewer-info {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
}