/* 黑料网 - 外部CSS样式文件 */
/* 域名: dtzj.com.cn */
/* 版本: v3.0 */

/* ========== 基础重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

a:hover {
    color: #8b5cf6;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* ========== 布局容器 ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 60px 0;
}

.section-light {
    background: #fff;
}

.section-dark {
    background: #f8f9fa;
}

/* ========== 头部导航 ========== */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 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;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
}

.logo h1 {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: rgba(255,255,255,0.9);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

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

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.2);
    border-radius: 25px;
    padding: 8px 16px;
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    width: 150px;
    font-size: 14px;
}

.search-box input::placeholder {
    color: rgba(255,255,255,0.7);
}

.search-box button {
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: #fff;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #8b5cf6;
}

.breadcrumb span {
    color: #999;
}

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

.banner h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

.banner p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

.banner-btn {
    display: inline-block;
    background: #fff;
    color: #8b5cf6;
    padding: 14px 36px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.banner-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    color: #764ba2;
}

/* ========== 模块标题 ========== */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 视频卡片 ========== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 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 ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px 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 ease;
}

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

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(139, 92, 246, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.video-info {
    padding: 18px;
}

.video-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.video-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========== 专家团队 ========== */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
}

.expert-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

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

.expert-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid #f0e6ff;
}

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

.expert-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.expert-card .title {
    font-size: 14px;
    color: #8b5cf6;
    margin-bottom: 12px;
}

.expert-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* ========== 用户评价 ========== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

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

.testimonial-content {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-author .avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
}

.testimonial-author .info h5 {
    font-size: 15px;
    font-weight: 600;
    color: #333;
}

.testimonial-author .info span {
    font-size: 13px;
    color: #999;
}

.stars {
    color: #fbbf24;
    margin-bottom: 15px;
}

/* ========== 数据统计 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

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

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: #8b5cf6;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 15px;
    color: #666;
}

/* ========== 合作品牌 ========== */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    align-items: center;
}

.partner-item {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.partner-item:hover {
    transform: scale(1.05);
}

.partner-item img {
    max-height: 60px;
    margin: 0 auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.partner-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ========== FAQ常见问题 ========== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.faq-question {
    padding: 20px 25px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: #8b5cf6;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

/* ========== 社交分享 ========== */
.share-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 40px 0;
    text-align: center;
}

.share-title {
    color: #fff;
    font-size: 20px;
    margin-bottom: 20px;
}

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

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.share-btn:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

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

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

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

.share-btn.bilibili {
    background: #fb7299;
}

/* ========== 二维码区域 ========== */
.qrcode-section {
    padding: 50px 0;
    background: #fff;
}

.qrcode-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.qrcode-item img {
    width: 150px;
    height: 150px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.qrcode-item h5 {
    font-size: 15px;
    color: #333;
    margin-bottom: 5px;
}

.qrcode-item p {
    font-size: 13px;
    color: #999;
}

/* ========== 页脚 ========== */
.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 60px 0 30px;
}

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

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo h3 {
    color: #fff;
    font-size: 20px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

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

.footer-links ul li a {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #8b5cf6;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-bottom .links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-left: 20px;
}

.footer-bottom .links a:hover {
    color: #8b5cf6;
}

/* ========== MCP服务按钮 ========== */
.mcp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 999;
}

.mcp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(139, 92, 246, 0.6);
}

/* ========== 工具卡片 ========== */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.tool-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

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

.tool-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #fff;
}

.tool-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.tool-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* ========== 社区帖子 ========== */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

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

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

.post-image {
    height: 180px;
    overflow: hidden;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.post-content {
    padding: 20px;
}

.post-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.post-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: #999;
}

/* ========== 内页横幅 ========== */
.page-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 60px 0;
    text-align: center;
    color: #fff;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-banner p {
    font-size: 16px;
    opacity: 0.9;
}

/* ========== 关于我们 ========== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-image img {
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .header-inner {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .banner h2 {
        font-size: 28px;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .video-grid,
    .expert-grid,
    .testimonial-grid,
    .tool-grid,
    .post-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom .links a {
        margin: 0 10px;
    }
    
    .qrcode-grid {
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .banner {
        padding: 50px 0;
    }
    
    .banner h2 {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .share-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .share-btn {
        width: 200px;
        justify-content: center;
    }
}