/* 网站样式表 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #fff;
}

.logo img {
    border-radius: 8px;
    margin-right: 10px;
}

.logo-text {
    font-size: 18px;
    font-weight: bold;
}

.nav {
    display: flex;
    gap: 25px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* 搜索区域 */
.search-section {
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    padding: 20px 0 40px;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.search-box input {
    flex: 1;
    padding: 15px 25px;
    border: none;
    font-size: 16px;
    outline: none;
}

.search-box button {
    padding: 15px 30px;
    background: #ff6b9d;
    color: #fff;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.search-box button:hover {
    background: #c44569;
}

/* Banner区域 */
.banner-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.banner-content h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

/* 面包屑 */
.breadcrumb {
    background: #fff;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb a {
    color: #ff6b9d;
    text-decoration: none;
}

/* 视频区域 */
.video-section {
    padding: 60px 0;
    background: #fff;
}

.video-section h2, .video-section h1 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
    color: #333;
}

.section-desc {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

.video-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.video-tabs a, .tab {
    padding: 10px 25px;
    border: 2px solid #ff6b9d;
    border-radius: 25px;
    color: #ff6b9d;
    text-decoration: none;
    transition: all 0.3s;
}

.video-tabs a:hover, .video-tabs a.active, .tab.active {
    background: #ff6b9d;
    color: #fff;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.video-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.video-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    color: #fff;
}

.video-badge.live {
    background: #ff4757;
}

.video-badge.hot {
    background: #ff6b9d;
}

.video-badge.featured {
    background: #2ed573;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255,107,157,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-card:hover .play-btn {
    opacity: 1;
}

.video-card h3 {
    padding: 15px;
    font-size: 15px;
    color: #333;
}

.video-stats {
    padding: 0 15px 15px;
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: #999;
}

/* 服务区域 */
.services-section {
    padding: 60px 0;
    background: #f9f9f9;
}

.services-section h2 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

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

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.service-card p {
    color: #666;
    font-size: 14px;
}

/* AI服务区域 */
.ai-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.ai-section h3 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.ai-section .section-desc {
    color: rgba(255,255,255,0.8);
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.ai-card {
    background: rgba(255,255,255,0.1);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.ai-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.ai-card h4 {
    font-size: 18px;
    margin-bottom: 15px;
}

.ai-card p {
    opacity: 0.9;
    font-size: 14px;
}

/* 专家区域 */
.experts-section {
    padding: 60px 0;
    background: #fff;
}

.experts-section h4 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.expert-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.expert-card img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
}

.expert-card h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.expert-title {
    color: #ff6b9d;
    font-size: 14px;
    margin-bottom: 10px;
}

.expert-card p {
    color: #666;
    font-size: 13px;
    margin-bottom: 15px;
}

.btn-contact {
    display: inline-block;
    padding: 8px 20px;
    background: #ff6b9d;
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
}

/* 评价区域 */
.reviews-section {
    padding: 60px 0;
    background: #f9f9f9;
}

.reviews-section h5 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.review-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.review-card h5 {
    font-size: 16px;
    margin-bottom: 10px;
    text-align: left;
}

.stars {
    color: #ffc107;
    margin-bottom: 15px;
}

.review-card p {
    color: #666;
    font-size: 14px;
}

/* FAQ区域 */
.faq-section {
    padding: 60px 0;
    background: #fff;
}

.faq-section h6 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.faq-list {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    border: 1px solid #eee;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    background: #f9f9f9;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
}

.faq-answer {
    padding: 20px;
    display: none;
    color: #666;
}

.faq-item.active .faq-answer {
    display: block;
}

/* 联系区域 */
.contact-section {
    padding: 60px 0;
    background: #f9f9f9;
}

.contact-section h2 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

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

.contact-info p {
    margin-bottom: 15px;
    color: #666;
}

.contact-info .icon {
    margin-right: 10px;
}

.contact-qrcode {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.qrcode-item {
    text-align: center;
}

.qrcode-item img {
    width: 150px;
    height: 150px;
    border-radius: 8px;
    margin-bottom: 10px;
}

/* 分享区域 */
.share-section {
    padding: 40px 0;
    background: #fff;
    text-align: center;
}

.share-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    transition: transform 0.3s;
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-btn.wechat {
    background: #07c160;
}

.share-btn.weibo {
    background: #e6162d;
}

.share-btn.douyin {
    background: #000;
}

.share-btn.bilibili {
    background: #00a1d6;
}

/* 页脚 */
.footer {
    background: #2d3436;
    color: #fff;
    padding: 60px 0 30px;
}

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

.footer-brand img {
    border-radius: 8px;
    margin-right: 10px;
    vertical-align: middle;
}

.footer-brand span {
    font-size: 18px;
    font-weight: bold;
}

.footer-brand p {
    margin-top: 15px;
    color: #aaa;
    font-size: 14px;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    color: #aaa;
    text-decoration: none;
    margin-bottom: 10px;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #ff6b9d;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    text-align: center;
    color: #aaa;
    font-size: 14px;
}

.footer-bottom a {
    color: #ff6b9d;
    text-decoration: none;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a, .pagination span {
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #333;
    text-decoration: none;
}

.pagination .current {
    background: #ff6b9d;
    color: #fff;
    border-color: #ff6b9d;
}

/* 页面通用 */
.page-section {
    padding: 60px 0;
    background: #fff;
}

.page-section h1 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 10px;
}

.content-grid, .tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.content-card, .tool-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 12px;
}

.content-card h3, .tool-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.content-card p, .tool-card p {
    color: #666;
    margin-bottom: 20px;
}

.btn, .btn-primary {
    display: inline-block;
    padding: 10px 25px;
    background: #ff6b9d;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    transition: background 0.3s;
}

.btn:hover, .btn-primary:hover {
    background: #c44569;
}

.creator-section {
    margin-top: 60px;
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    border-radius: 12px;
    color: #fff;
}

.creator-section h2 {
    margin-bottom: 15px;
}

.benefits-list {
    list-style: none;
    margin: 30px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.benefits-list li {
    background: rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 20px;
}

.community-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.feature-card {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.hot-topics {
    margin-top: 60px;
    text-align: center;
}

.hot-topics h2 {
    margin-bottom: 20px;
}

.topics-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.topic-tag {
    padding: 10px 20px;
    background: #ff6b9d;
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    transition: background 0.3s;
}

.topic-tag:hover {
    background: #c44569;
}

.tool-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

/* 响应式 */
@media (max-width: 992px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .services-grid, .ai-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid, .ai-grid, .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .experts-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .banner-content h1 {
        font-size: 24px;
    }
    
    .content-grid, .tools-grid, .community-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .video-tabs {
        flex-direction: column;
        align-items: center;
    }
}