/* ============================================
   懂片帝 - 修车改装视频社区 全站样式表
   品牌：懂片帝 | 域名：uyhpuo.cn
   ============================================ */

/* === CSS Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#333;background:#0a0a0a;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:#00b4ff;text-decoration:none;transition:color .3s}
a:hover{color:#ff6b35}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#fff}

/* === Layout === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-dark{background:#111}
.section-light{background:#1a1a2e}
.section-gradient{background:linear-gradient(135deg,#0a0a0a 0%,#1a1a2e 50%,#0a0a0a 100%)}

/* === Header / Navigation === */
.site-header{background:rgba(10,10,10,.95);backdrop-filter:blur(10px);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:45px;width:auto}
.logo-text{font-size:20px;font-weight:800;color:#fff;letter-spacing:1px}
.logo-text span{color:#00b4ff}

.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#ccc;padding:10px 16px;font-size:14px;font-weight:500;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#00b4ff}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:#00b4ff;transition:width .3s}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}

.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.mobile-toggle span{width:25px;height:2px;background:#fff;transition:all .3s}

/* === Search Bar === */
.search-bar{background:#111;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%}
.search-box input{flex:1;padding:10px 18px;border:1px solid #333;border-right:none;border-radius:25px 0 0 25px;background:#1a1a1a;color:#fff;font-size:14px;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#00b4ff}
.search-box button{padding:10px 24px;background:linear-gradient(135deg,#00b4ff,#0066cc);color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:14px;font-weight:600;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* === Banner === */
.banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.3) 0%,rgba(0,0,0,.7) 100%)}
.banner-content{position:relative;z-index:2;text-align:center;padding:20px;max-width:800px}
.banner-content h1{font-size:42px;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.8)}
.banner-content h1 span{color:#00b4ff}
.banner-content p{font-size:18px;color:#ddd;margin-bottom:25px;text-shadow:1px 1px 4px rgba(0,0,0,.6)}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.banner-tags span{background:rgba(0,180,255,.15);border:1px solid rgba(0,180,255,.3);color:#00b4ff;padding:6px 16px;border-radius:20px;font-size:13px}

/* === Breadcrumb === */
.breadcrumb{padding:15px 0;font-size:13px;color:#888}
.breadcrumb a{color:#00b4ff}
.breadcrumb span{margin:0 8px;color:#555}

/* === Video Card Grid === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#1a1a1a;border-radius:10px;overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,180,255,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.4)}
.video-card:hover .video-play-btn{opacity:1}
.video-play-btn svg{width:50px;height:50px;fill:#fff;filter:drop-shadow(0 2px 8px rgba(0,0,0,.5))}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-info{padding:14px}
.video-info h3{font-size:15px;color:#eee;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.video-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:#888}
.video-meta .views::before{content:'▶ '}
.video-meta .likes::before{content:'♥ '}
.video-meta .comments::before{content:'💬 '}
.video-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.video-tags span{font-size:11px;color:#00b4ff;background:rgba(0,180,255,.1);padding:2px 8px;border-radius:10px}

/* === Section Headers === */
.section-header{text-align:center;margin-bottom:45px}
.section-header h2{font-size:32px;margin-bottom:12px}
.section-header h2 span{color:#00b4ff}
.section-header p{color:#999;font-size:16px;max-width:600px;margin:0 auto}
.section-header .line{width:60px;height:3px;background:linear-gradient(90deg,#00b4ff,#ff6b35);margin:15px auto 0;border-radius:2px}

/* === Expert / Team Cards === */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.team-card{background:#1a1a1a;border-radius:12px;padding:25px;text-align:center;transition:transform .3s,box-shadow .3s}
.team-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,180,255,.1)}
.team-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 15px;border:3px solid #00b4ff}
.team-card h4{color:#fff;font-size:18px;margin-bottom:5px}
.team-card .role{color:#00b4ff;font-size:13px;margin-bottom:10px}
.team-card p{color:#999;font-size:13px;line-height:1.6}
.team-card .team-links{margin-top:12px;display:flex;gap:10px;justify-content:center}
.team-card .team-links a{padding:6px 14px;border:1px solid #00b4ff;color:#00b4ff;border-radius:20px;font-size:12px;transition:all .3s}
.team-card .team-links a:hover{background:#00b4ff;color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#1a1a1a;border-radius:10px;margin-bottom:12px;overflow:hidden;border:1px solid rgba(255,255,255,.05)}
.faq-question{padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#eee;font-weight:600;font-size:15px;transition:background .3s}
.faq-question:hover{background:rgba(0,180,255,.05)}
.faq-question .icon{color:#00b4ff;font-size:20px;transition:transform .3s}
.faq-item.active .faq-question .icon{transform:rotate(45deg)}
.faq-answer{padding:0 22px;max-height:0;overflow:hidden;transition:all .4s ease;color:#999;font-size:14px;line-height:1.8}
.faq-item.active .faq-answer{padding:0 22px 18px;max-height:500px}

/* === Reviews / Testimonials === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#1a1a1a;border-radius:12px;padding:25px;border:1px solid rgba(255,255,255,.05)}
.review-card .stars{color:#ffd700;margin-bottom:10px;font-size:16px}
.review-card p{color:#ccc;font-size:14px;line-height:1.8;margin-bottom:12px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:40px;height:40px;border-radius:50%;background:#333;display:flex;align-items:center;justify-content:center;color:#00b4ff;font-weight:700;font-size:16px}
.review-card .reviewer .name{color:#eee;font-weight:600;font-size:14px}
.review-card .reviewer .date{color:#666;font-size:12px}

/* === Partner Logos === */
.ldzaq{display:flex;flex-wrap:wrap;gap:25px;justify-content:center;align-items:center}
.ldzaq .g6igyqe{background:#1a1a1a;padding:20px 30px;border-radius:10px;color:#888;font-size:16px;font-weight:700;border:1px solid rgba(255,255,255,.05);transition:all .3s}
.ldzaq .g6igyqe:hover{border-color:#00b4ff;color:#00b4ff}

/* === How-To Guide === */
.lyupml{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.2476p{background:#1a1a1a;border-radius:12px;padding:30px 20px;text-align:center;position:relative}
.2476p .k2z3mfo8{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#00b4ff,#0066cc);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;margin:0 auto 15px}
.2476p h4{color:#fff;margin-bottom:8px;font-size:16px}
.2476p p{color:#999;font-size:13px}

/* === Contact Info === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-card{background:#1a1a1a;border-radius:12px;padding:30px}
.contact-card h3{color:#fff;font-size:20px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1)}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:15px;color:#ccc;font-size:14px}
.contact-item .label{color:#00b4ff;font-weight:600;min-width:80px}
.qrcode-row{display:flex;gap:30px;margin-top:20px}
.qrcode-item{text-align:center}
.qrcode-item img{width:150px;height:150px;border-radius:8px;margin-bottom:8px}
.qrcode-item p{color:#999;font-size:13px}

/* === Social Share === */
.focfl8se{display:flex;gap:12px;flex-wrap:wrap}
.3utgzc{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:13px;font-weight:600;color:#fff;transition:opacity .3s;cursor:pointer}
.3utgzc:hover{opacity:.8;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#fb7299}

/* === Footer === */
.site-footer{background:#080808;padding:50px 0 0;border-top:1px solid rgba(255,255,255,.05)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#00b4ff}
.footer-col p{color:#888;font-size:13px;line-height:1.8}
.footer-col a{display:block;color:#888;font-size:13px;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#00b4ff}
.footer-col .footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:15px}
.footer-col .footer-logo img{height:35px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding:20px 0;text-align:center}
.footer-bottom p{color:#666;font-size:13px}
.footer-bottom .update-time{color:#888;font-size:12px;margin-top:5px}

/* === AI Module === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ai-card{background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:12px;padding:30px;border:1px solid rgba(0,180,255,.1);transition:all .3s}
.ai-card:hover{border-color:#00b4ff;box-shadow:0 5px 25px rgba(0,180,255,.1)}
.ai-card .ai-icon{font-size:36px;margin-bottom:15px}
.ai-card h4{color:#fff;font-size:18px;margin-bottom:10px}
.ai-card p{color:#999;font-size:13px;line-height:1.7}

/* === Community Topics === */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.topic-card{background:#1a1a1a;border-radius:10px;padding:20px;border-left:3px solid #00b4ff;transition:all .3s}
.topic-card:hover{background:#222;transform:translateX(5px)}
.topic-card h4{color:#eee;font-size:15px;margin-bottom:6px}
.topic-card .topic-meta{color:#888;font-size:12px}

/* === Buttons === */
.btn{display:inline-block;padding:12px 28px;border-radius:25px;font-size:14px;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#00b4ff,#0066cc);color:#fff}
.btn-primary:hover{box-shadow:0 5px 20px rgba(0,180,255,.3);color:#fff;transform:translateY(-2px)}
.btn-outline{border:1px solid #00b4ff;color:#00b4ff;background:transparent}
.btn-outline:hover{background:#00b4ff;color:#fff}

/* === Inner Page Banner === */
.inner-banner{position:relative;height:300px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.inner-banner .banner-bg{filter:brightness(.35)}
.inner-banner .banner-content h1{font-size:36px}

/* === Content Area === */
.content-area{padding:40px 0}
.content-area article{color:#ccc;font-size:15px;line-height:2}
.content-area article h2{color:#fff;font-size:24px;margin:30px 0 15px;padding-left:12px;border-left:3px solid #00b4ff}
.content-area article h3{color:#eee;font-size:20px;margin:25px 0 12px}
.content-area article p{margin-bottom:15px}

/* === Sidebar Modules === */
.page-layout{display:grid;grid-template-columns:1fr 300px;gap:30px}
.sidebar .widget{background:#1a1a1a;border-radius:10px;padding:20px;margin-bottom:20px}
.sidebar .widget h4{color:#fff;font-size:16px;margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}
.sidebar .widget a{display:block;color:#ccc;font-size:13px;padding:6px 0;transition:color .3s}
.sidebar .widget a:hover{color:#00b4ff}

/* === Responsive === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .page-layout{grid-template-columns:1fr}
  .lyupml{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#111;flex-direction:column;padding:15px 0;border-top:1px solid rgba(255,255,255,.05)}
  .main-nav.active{display:flex}
  .mobile-toggle{display:flex}
  .banner{height:380px}
  .banner-content h1{font-size:28px}
  .section-header h2{font-size:24px}
  .header-inner{padding:10px 15px}
  .footer-grid{grid-template-columns:1fr}
  .lyupml{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .banner{height:320px}
  .banner-content h1{font-size:22px}
}

/* === Lazy Load === */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

/* === MCP Placeholder === */
.9a8fk2y{background:#1a1a2e;border:1px dashed rgba(0,180,255,.3);border-radius:10px;padding:20px;text-align:center;color:#666;font-size:13px}

/* === EEAT Trust Signals === */
.x6zb1mg{background:#0d1117;border:1px solid rgba(0,180,255,.12);border-radius:10px;padding:20px 25px;margin:20px 0;display:flex;align-items:center;gap:15px;flex-wrap:wrap}
.x6zb1mg .80vqf{display:inline-flex;align-items:center;gap:6px;background:rgba(0,180,255,.08);border:1px solid rgba(0,180,255,.2);padding:6px 14px;border-radius:20px;color:#00b4ff;font-size:12px;font-weight:600}
.x6zb1mg .80vqf .icon{font-size:14px}
.06s9ykcj{background:#0d1117;border-left:3px solid #00b4ff;padding:15px 20px;margin:20px 0;border-radius:0 8px 8px 0;color:#999;font-size:13px;line-height:1.8}
.06s9ykcj strong{color:#ccc}

/* === Author Info Box === */
.author-box{background:#1a1a1a;border-radius:12px;padding:20px;display:flex;align-items:center;gap:18px;margin:25px 0;border:1px solid rgba(255,255,255,.05)}
.author-box img{width:70px;height:70px;border-radius:50%;object-fit:cover;border:2px solid #00b4ff}
.author-box .author-info h4{color:#fff;font-size:16px;margin-bottom:4px}
.author-box .author-info .author-title{color:#00b4ff;font-size:12px;margin-bottom:4px}
.author-box .author-info .author-cred{color:#888;font-size:12px;line-height:1.6}

/* === Time Freshness Tags === */
.aqdxl{display:inline-flex;align-items:center;gap:4px;background:rgba(0,180,255,.1);border:1px solid rgba(0,180,255,.2);color:#00b4ff;padding:4px 12px;border-radius:15px;font-size:11px;font-weight:600}
.aqdxl.hot{background:rgba(255,107,53,.1);border-color:rgba(255,107,53,.2);color:#ff6b35}
.publish-date{color:#666;font-size:12px;margin-top:6px}
.publish-date time{color:#888}

/* === Video Modal === */
.video-modal{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.9);align-items:center;justify-content:center}
.video-modal.active{display:flex}
.video-modal-inner{background:#111;border-radius:12px;padding:20px;max-width:800px;width:90%;position:relative}
.video-modal-close{position:absolute;top:-15px;right:-15px;width:36px;height:36px;border-radius:50%;background:#333;color:#fff;border:none;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s}
.video-modal-close:hover{background:#ff4444}
.video-modal-player{width:100%;aspect-ratio:16/9;background:#000;border-radius:8px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.video-modal-player img{width:100%;height:100%;object-fit:cover;filter:brightness(.6)}
.video-modal-player .play-icon{position:absolute;width:70px;height:70px;fill:#fff;filter:drop-shadow(0 2px 10px rgba(0,0,0,.5));cursor:pointer;transition:transform .3s}
.video-modal-player .play-icon:hover{transform:scale(1.1)}
.video-modal-info{padding:15px 0 0}
.video-modal-info h3{color:#fff;font-size:18px;margin-bottom:8px}
.video-modal-info p{color:#999;font-size:13px;line-height:1.6}

/* === Compliance Footer === */
.lxl9txg{background:#080808;border-top:1px solid rgba(255,255,255,.03);padding:15px 0;text-align:center}
.lxl9txg a{color:#666;font-size:12px;margin:0 12px;transition:color .3s}
.lxl9txg a:hover{color:#00b4ff}
.lxl9txg .icp{color:#555;font-size:11px;margin-top:8px;display:block}

/* === Update Ticker === */
.fc6m0{background:linear-gradient(90deg,rgba(0,180,255,.05),rgba(0,180,255,.1),rgba(0,180,255,.05));padding:10px 0;overflow:hidden;border-bottom:1px solid rgba(0,180,255,.08)}
.5klseqm{display:flex;align-items:center;gap:20px;animation:tickerScroll 30s linear infinite}
.5klseqm span{white-space:nowrap;color:#888;font-size:13px}
.5klseqm span strong{color:#00b4ff}
@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* === Stats Counter === */
.qbdx5y{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:30px 0}
.29y47{text-align:center;padding:25px;background:rgba(0,180,255,.05);border:1px solid rgba(0,180,255,.1);border-radius:12px}
.29y47 .krln4mti{font-size:32px;font-weight:800;color:#00b4ff;margin-bottom:5px}
.29y47 .303mi165{color:#888;font-size:13px}
@media(max-width:768px){.qbdx5y{grid-template-columns:repeat(2,1fr)}.x6zb1mg{flex-direction:column;align-items:flex-start}}
@media(max-width:480px){.qbdx5y{grid-template-columns:1fr}}