/* 国产主播 - 汽车改装视频社区 主样式表 */
/* boschmall.cn */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#333;background:#f8f9fa;line-height:1.8}
a{color:#1a5dc8;text-decoration:none;transition:color .3s}
a:hover{color:#e8530e}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 头部导航 */
.site-header{background:#1a1a2e;position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{height:48px;width:auto}
.site-logo span{color:#fff;font-size:1.3rem;font-weight:700}
.main-nav{display:flex;gap:0}
.main-nav a{color:#ddd;padding:12px 16px;font-size:.95rem;transition:all .3s;border-bottom:3px solid transparent}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.08);border-bottom-color:#e8530e}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
/* 搜索框 */
.search-bar{background:#16213e;padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;position:relative}
.search-form input[type="text"]{flex:1;padding:10px 18px;border:2px solid #2a3a5c;border-radius:25px 0 0 25px;background:#1a1a2e;color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-form input[type="text"]:focus{border-color:#e8530e}
.search-form button{padding:10px 28px;background:#e8530e;color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-form button:hover{background:#d04500}
/* Hero Banner */
.hero-section{position:relative;height:520px;overflow:hidden;background:#1a1a2e}
.hero-section img{width:100%;height:100%;object-fit:cover;opacity:.6}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px}
.hero-overlay h1{color:#fff;font-size:2.8rem;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.7)}
.hero-overlay p{color:#e0e0e0;font-size:1.2rem;max-width:700px;text-shadow:1px 1px 4px rgba(0,0,0,.5)}
.hero-overlay .hero-tags{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.hero-overlay .hero-tags span{background:rgba(232,83,14,.85);color:#fff;padding:6px 18px;border-radius:20px;font-size:.85rem}
/* 面包屑 */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#666}
.breadcrumb a:hover{color:#e8530e}
/* 区块标题 */
.section-title{text-align:center;margin:50px 0 30px;position:relative}
.section-title h2{font-size:1.8rem;color:#1a1a2e;display:inline-block;position:relative;padding-bottom:12px}
.section-title h2::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:#e8530e}
.section-title p{color:#888;margin-top:10px;font-size:.95rem}
/* 视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;padding:10px 0}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#222}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(232,83,14,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .video-play-btn{opacity:1}
.video-play-btn::after{content:"";border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:14px}
.video-info h3{font-size:1rem;color:#222;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;justify-content:space-between;font-size:.8rem;color:#999}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tags{padding:0 14px 14px;display:flex;gap:6px;flex-wrap:wrap}
.video-tags span{background:#f0f2f5;color:#666;padding:2px 10px;border-radius:12px;font-size:.75rem}
/* 专家展示 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s}
.expert-card:hover{transform:translateY(-3px)}
.expert-avatar{width:90px;height:90px;border-radius:50%;margin:0 auto 15px;background:#e8530e;display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;font-weight:700}
.expert-card h4{font-size:1.1rem;color:#1a1a2e;margin-bottom:4px}
.expert-card .expert-role{color:#e8530e;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#666;line-height:1.6}
.expert-card .expert-btns{margin-top:15px;display:flex;gap:10px;justify-content:center}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;border:1px solid #e8530e;color:#e8530e;transition:all .3s}
.expert-card .expert-btns a:hover{background:#e8530e;color:#fff}
/* FAQ */
.faq-section{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.faq-item{border-bottom:1px solid #eee;padding:18px 0}
.faq-item:last-child{border-bottom:none}
.faq-question{font-weight:600;color:#1a1a2e;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem}
.faq-question::after{content:"+";font-size:1.4rem;color:#e8530e;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;color:#666;font-size:.9rem;line-height:1.8}
.faq-item.active .faq-answer{max-height:300px;padding-top:12px}
/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:45px;height:45px;border-radius:50%;background:#1a5dc8;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.review-name{font-weight:600;color:#222}
.review-date{font-size:.8rem;color:#999}
.review-stars{color:#f5a623;margin-bottom:8px;font-size:1rem}
.review-text{font-size:.9rem;color:#555;line-height:1.7}
/* 合作品牌 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center;padding:20px 0}
.brand-wall .brand-item{width:120px;height:60px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.06);padding:10px;font-weight:700;color:#555;font-size:.85rem}
/* 联系我们 */
.contact-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.contact-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.contact-card h4{color:#1a1a2e;margin-bottom:15px;font-size:1.1rem;border-left:4px solid #e8530e;padding-left:12px}
.contact-item{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:.9rem;color:#555}
.contact-item strong{color:#333;min-width:70px}
/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:25px;color:#fff;font-size:.85rem;transition:opacity .3s}
.share-btn:hover{opacity:.85;color:#fff}
.share-btn.wechat{background:#07c160}
.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#fb7299}
/* How-To */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.howto-step .step-num{width:50px;height:50px;border-radius:50%;background:#e8530e;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:700;margin:0 auto 15px}
.howto-step h4{color:#1a1a2e;margin-bottom:8px}
.howto-step p{font-size:.85rem;color:#666}
/* AI赋能 */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.ai-card{background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:12px;padding:28px;color:#fff;box-shadow:0 4px 20px rgba(0,0,0,.15);transition:transform .3s}
.ai-card:hover{transform:translateY(-3px)}
.ai-card h4{font-size:1.1rem;margin-bottom:10px;color:#e8530e}
.ai-card p{font-size:.9rem;line-height:1.7;color:#ccc}
/* 页脚 */
.site-footer{background:#1a1a2e;color:#aaa;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;margin-bottom:15px;font-size:1rem}
.footer-col p,.footer-col a{font-size:.85rem;color:#aaa;line-height:2}
.footer-col a:hover{color:#e8530e}
.footer-qr{display:flex;gap:20px;margin-top:10px}
.footer-qr img{width:100px;height:100px;border-radius:8px}
.footer-bottom{border-top:1px solid #2a2a4e;padding-top:20px;text-align:center;font-size:.8rem}
.footer-bottom a{color:#aaa}
/* 分类标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:15px 0}
.tag-cloud a{background:#f0f2f5;color:#555;padding:6px 16px;border-radius:20px;font-size:.85rem;transition:all .3s}
.tag-cloud a:hover{background:#e8530e;color:#fff}
/* 统计数据 */
.stats-bar{display:flex;justify-content:center;gap:50px;padding:30px 0;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-item .stat-num{font-size:2.2rem;font-weight:700;color:#e8530e}
.stat-item .stat-label{font-size:.85rem;color:#888;margin-top:4px}
/* 内页通用 */
.page-hero{background:#1a1a2e;padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2rem;margin-bottom:10px}
.page-hero p{color:#aaa;font-size:1rem}
.content-section{padding:40px 0}
.content-section h2{font-size:1.5rem;color:#1a1a2e;margin-bottom:20px}
.content-section p{font-size:.95rem;color:#555;line-height:1.9;margin-bottom:15px}
.article-list{display:grid;gap:20px}
.article-item{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 10px rgba(0,0,0,.06);display:flex;gap:20px;align-items:flex-start}
.article-item img{width:200px;height:130px;object-fit:cover;border-radius:8px;flex-shrink:0}
.article-item h3{font-size:1.05rem;color:#222;margin-bottom:8px}
.article-item p{font-size:.85rem;color:#666;line-height:1.7}
/* 社区功能模块 */
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;padding:10px 0}
.community-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s;border-left:4px solid #e8530e}
.community-card:hover{transform:translateY(-3px)}
.community-card h4{font-size:1.05rem;color:#1a1a2e;margin-bottom:8px}
.community-card p{font-size:.85rem;color:#666;line-height:1.6;margin-bottom:10px}
.community-stats{display:flex;gap:15px;font-size:.8rem;color:#e8530e;font-weight:600}
.video-author{font-size:.8rem;color:#888;margin-top:4px}
/* 干扰标签隐藏 */
.n57b8s8{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;opacity:0;pointer-events:none}
/* 响应式 */
@media(max-width:768px){
.community-grid{grid-template-columns:1fr}
.header-inner{flex-wrap:wrap}
.main-nav{display:none;flex-direction:column;width:100%;background:#16213e}
.main-nav.show{display:flex}
.mobile-menu-btn{display:block}
.hero-section{height:350px}
.hero-overlay h1{font-size:1.8rem}
.hero-overlay p{font-size:1rem}
.video-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.contact-section{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.stats-bar{gap:25px}
.stat-item .stat-num{font-size:1.6rem}
.article-item{flex-direction:column}
.article-item img{width:100%;height:180px}
.search-form{max-width:100%}
}
@media(max-width:480px){
.hero-section{height:280px}
.hero-overlay h1{font-size:1.4rem}
.section-title h2{font-size:1.4rem}
.main-nav a{padding:10px 15px}
}