/* 黄色仓库修车改装视频社区 - 原创样式表 */
/* 配色方案：深炭黑#1a1a2e + 深红#c0392b + 钢蓝#2c3e6b + 暖橙#e67e22 + 浅灰#ecf0f1 */

*{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:#e8e8e8;background:#0d0d1a;line-height:1.8}
a{color:#e67e22;text-decoration:none;transition:color .3s}
a:hover{color:#f39c12}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 头部导航 - 原创赛道风格 */
.site-header{background:linear-gradient(180deg,#0d0d1a 0%,#1a1a2e 100%);border-bottom:3px solid #c0392b;position:sticky;top:0;z-index:1000;padding:0}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:50px;width:auto}
.logo-wrap .brand-text{font-size:1.6rem;font-weight:900;color:#fff;letter-spacing:2px}
.logo-wrap .brand-text span{color:#c0392b}

/* 导航菜单 */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#ccc;padding:15px 14px;font-size:.9rem;font-weight:500;transition:all .3s;border-bottom:3px solid transparent;display:block}
.main-nav a:hover,.main-nav a.active{color:#fff;border-bottom-color:#c0392b;background:rgba(192,57,43,.1)}
.mobile-menu-btn{display:none;background:none;border:2px solid #c0392b;color:#fff;font-size:1.4rem;padding:6px 12px;cursor:pointer;border-radius:4px}

/* 搜索框 */
.search-bar{background:#1a1a2e;padding:12px 0;border-bottom:1px solid #2c3e6b}
.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:2px solid #2c3e6b;border-right:none;border-radius:25px 0 0 25px;background:#0d0d1a;color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#c0392b}
.search-box button{padding:10px 28px;background:linear-gradient(135deg,#c0392b,#e74c3c);color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;font-weight:600;transition:background .3s}
.search-box button:hover{background:linear-gradient(135deg,#e74c3c,#c0392b)}

/* Banner区域 - 原创斜切设计 */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#0d0d1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;filter:brightness(.6)}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(13,13,26,.9) 0%,rgba(26,26,46,.5) 50%,rgba(192,57,43,.2) 100%);display:flex;align-items:center}
.hero-content{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
.hero-content h1{font-size:3rem;font-weight:900;color:#fff;margin-bottom:15px;text-shadow:0 2px 20px rgba(192,57,43,.5)}
.hero-content h1 .hl{color:#c0392b}
.hero-content p{font-size:1.15rem;color:#ccc;max-width:650px;margin-bottom:25px;line-height:1.9}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{background:rgba(192,57,43,.25);border:1px solid rgba(192,57,43,.5);color:#f5a623;padding:5px 16px;border-radius:20px;font-size:.85rem}

/* 区块标题 - 原创引擎线条风格 */
.section-title{text-align:center;margin-bottom:40px;position:relative}
.section-title h2{font-size:2rem;font-weight:800;color:#fff;display:inline-block;position:relative;padding-bottom:12px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:4px;background:linear-gradient(90deg,#c0392b,#e67e22);border-radius:2px}
.section-title h2 .hl{color:#c0392b}
.section-title p{color:#999;margin-top:12px;font-size:1rem}

/* 通用区块 */
.section{padding:60px 0}
.section-dark{background:#0d0d1a}
.section-alt{background:#111128}
.section-gradient{background:linear-gradient(180deg,#1a1a2e 0%,#0d0d1a 100%)}

/* H5视频播放器展示区 */
.video-showcase{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:30px}
.video-player-wrap{position:relative;border-radius:12px;overflow:hidden;background:#000;aspect-ratio:16/9;border:2px solid #2c3e6b}
.video-player-wrap video{width:100%;height:100%;object-fit:cover}
.video-player-wrap .video-poster{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1}
.video-player-wrap .play-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);z-index:2;opacity:0;transition:opacity .4s;cursor:pointer}
.video-player-wrap:hover .play-overlay{opacity:1}
.play-overlay .play-btn{width:70px;height:70px;background:rgba(192,57,43,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s}
.play-overlay .play-btn::after{content:'';border-style:solid;border-width:14px 0 14px 24px;border-color:transparent transparent transparent #fff;margin-left:4px}
.play-overlay:hover .play-btn{transform:scale(1.15)}
.video-info{padding:15px 0}
.video-info h4{color:#fff;font-size:1.05rem;margin-bottom:6px}
.video-info .meta{color:#888;font-size:.85rem;display:flex;gap:15px}
.video-info .meta span{display:flex;align-items:center;gap:4px}

/* 视频卡片网格 */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.video-card{background:#1a1a2e;border-radius:10px;overflow:hidden;transition:transform .3s,box-shadow .3s;border:1px solid #2c3e6b}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(192,57,43,.2)}
.video-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .thumb .play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:50px;height:50px;background:rgba(192,57,43,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .thumb .play-icon{opacity:1}
.video-card .thumb .play-icon::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card .thumb .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-card .thumb .tag{position:absolute;top:8px;left:8px;background:#c0392b;color:#fff;padding:2px 10px;border-radius:4px;font-size:.75rem}
.video-card .card-body{padding:14px}
.video-card .card-body h3{font-size:.95rem;color:#fff;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-body .stats{display:flex;gap:12px;color:#888;font-size:.8rem}

/* 分类模块 - 原创六边形风格 */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.category-card{background:linear-gradient(145deg,#1a1a2e,#111128);border:1px solid #2c3e6b;border-radius:12px;padding:30px;text-align:center;transition:all .3s;position:relative;overflow:hidden}
.category-card::before{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(192,57,43,.1) 0%,transparent 70%);transition:all .5s}
.category-card:hover::before{top:0;right:0}
.category-card:hover{border-color:#c0392b;transform:translateY(-4px)}
.category-card .icon{font-size:2.5rem;margin-bottom:15px}
.category-card h3{color:#fff;font-size:1.15rem;margin-bottom:10px}
.category-card p{color:#999;font-size:.9rem;line-height:1.7}
.category-card .link{display:inline-block;margin-top:12px;color:#e67e22;font-size:.9rem;font-weight:600}

/* 专家团队 */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.team-card{background:#1a1a2e;border-radius:12px;overflow:hidden;text-align:center;border:1px solid #2c3e6b;transition:all .3s}
.team-card:hover{border-color:#e67e22;transform:translateY(-4px)}
.team-card .avatar{width:100%;aspect-ratio:1;object-fit:cover}
.team-card .info{padding:18px}
.team-card .info h4{color:#fff;font-size:1.05rem;margin-bottom:4px}
.team-card .info .role{color:#e67e22;font-size:.85rem;margin-bottom:8px}
.team-card .info p{color:#999;font-size:.85rem;line-height:1.6}
.team-card .actions{padding:0 18px 18px;display:flex;gap:10px;justify-content:center}
.team-card .actions a{padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600;transition:all .3s}
.btn-primary{background:#c0392b;color:#fff;border:1px solid #c0392b}
.btn-primary:hover{background:#e74c3c;color:#fff}
.btn-outline{background:transparent;color:#e67e22;border:1px solid #e67e22}
.btn-outline:hover{background:#e67e22;color:#fff}

/* FAQ手风琴 */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #2c3e6b;border-radius:8px;margin-bottom:12px;overflow:hidden;background:#1a1a2e}
.faq-item .faq-q{padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#fff;font-weight:600;font-size:1rem;transition:background .3s}
.faq-item .faq-q:hover{background:rgba(192,57,43,.1)}
.faq-item .faq-q .arrow{transition:transform .3s;color:#c0392b;font-size:1.2rem}
.faq-item.active .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:all .4s;color:#bbb;font-size:.95rem;line-height:1.8}
.faq-item.active .faq-a{padding:0 22px 18px;max-height:500px}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px}
.review-card{background:#1a1a2e;border:1px solid #2c3e6b;border-radius:12px;padding:25px;position:relative}
.review-card::before{content:'\201C';position:absolute;top:10px;left:18px;font-size:3rem;color:rgba(192,57,43,.3);font-family:Georgia,serif}
.review-card .stars{color:#f39c12;margin-bottom:10px;font-size:1.1rem}
.review-card .text{color:#ccc;font-size:.95rem;line-height:1.8;margin-bottom:15px;padding-left:10px}
.review-card .author{display:flex;align-items:center;gap:12px}
.review-card .author .avatar-sm{width:40px;height:40px;border-radius:50%;background:#2c3e6b;display:flex;align-items:center;justify-content:center;color:#e67e22;font-weight:700;font-size:1rem}
.review-card .author .name{color:#fff;font-weight:600;font-size:.9rem}
.review-card .author .date{color:#888;font-size:.8rem}

/* 合作品牌墙 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.brand-wall .brand-item{background:#1a1a2e;border:1px solid #2c3e6b;border-radius:10px;padding:20px 30px;color:#999;font-size:1rem;font-weight:600;transition:all .3s}
.brand-wall .brand-item:hover{border-color:#e67e22;color:#e67e22}

/* How-To指南 */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.step-card{text-align:center;padding:25px 15px;background:#1a1a2e;border-radius:12px;border:1px solid #2c3e6b}
.step-card .step-num{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#c0392b,#e67e22);color:#fff;font-size:1.3rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 15px}
.step-card h4{color:#fff;margin-bottom:8px;font-size:1rem}
.step-card p{color:#999;font-size:.85rem;line-height:1.6}

/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{padding:10px 22px;border-radius:25px;color:#fff;font-size:.9rem;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.share-wechat{background:#07c160}.share-weibo{background:#e6162d}.share-douyin{background:#161823}.share-bilibili{background:#00a1d6}
.share-btn:hover{transform:translateY(-2px);filter:brightness(1.15)}

/* 页脚 - 原创赛道终点线风格 */
.site-footer{background:#0a0a18;border-top:4px solid #c0392b;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:1.05rem;margin-bottom:18px;padding-bottom:10px;border-bottom:2px solid #c0392b;display:inline-block}
.footer-col p{color:#999;font-size:.9rem;line-height:1.8;margin-bottom:8px}
.footer-col a{color:#999;font-size:.9rem;display:block;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#e67e22}
.footer-col .qr-img{width:120px;border-radius:8px;border:2px solid #2c3e6b;margin-top:8px}
.footer-bottom{border-top:1px solid #1a1a2e;padding:20px 0;text-align:center;color:#666;font-size:.85rem}
.footer-bottom .update-time{color:#888;margin-top:6px}

/* EEAT作者信息 */
.author-box{display:flex;align-items:center;gap:15px;background:#1a1a2e;border:1px solid #2c3e6b;border-radius:10px;padding:18px 22px;margin:20px 0}
.author-box .author-avatar{width:55px;height:55px;border-radius:50%;background:#2c3e6b;display:flex;align-items:center;justify-content:center;color:#e67e22;font-size:1.3rem;font-weight:700;flex-shrink:0}
.author-box .author-info .name{color:#fff;font-weight:700;font-size:1rem}
.author-box .author-info .title{color:#e67e22;font-size:.85rem}
.author-box .author-info .bio{color:#999;font-size:.85rem;margin-top:4px}
.publish-date{color:#888;font-size:.85rem;margin:10px 0}
.publish-date time{color:#e67e22}

/* 面包屑 */
.breadcrumb{padding:12px 0;color:#888;font-size:.85rem}
.breadcrumb a{color:#e67e22}
.breadcrumb span{margin:0 6px;color:#555}

/* AI赋能区块 */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.ai-card{background:linear-gradient(145deg,#111128,#1a1a2e);border:1px solid #2c3e6b;border-radius:12px;padding:30px;transition:all .3s}
.ai-card:hover{border-color:#e67e22;box-shadow:0 0 30px rgba(230,126,34,.1)}
.ai-card .ai-icon{font-size:2.2rem;margin-bottom:15px}
.ai-card h3{color:#fff;font-size:1.1rem;margin-bottom:10px}
.ai-card p{color:#999;font-size:.9rem;line-height:1.7}

/* 联系信息 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.contact-card{background:#1a1a2e;border:1px solid #2c3e6b;border-radius:12px;padding:30px}
.contact-card h3{color:#fff;margin-bottom:15px;font-size:1.15rem}
.contact-card .info-item{display:flex;gap:12px;margin-bottom:12px;color:#ccc;font-size:.95rem}
.contact-card .info-item .label{color:#e67e22;font-weight:600;min-width:80px}

/* 干扰标签隐藏 */
.drgn{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* 响应式 */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .team-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .mobile-menu-btn{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#1a1a2e;flex-direction:column;border-top:1px solid #2c3e6b;box-shadow:0 10px 30px rgba(0,0,0,.5)}
  .main-nav.active{display:flex}
  .main-nav a{padding:14px 20px;border-bottom:1px solid #0d0d1a}
  .hero-banner{height:380px}
  .hero-content h1{font-size:1.8rem}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .video-showcase{grid-template-columns:1fr}
  .category-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .brand-wall{gap:15px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .hero-banner{height:300px}
  .hero-content h1{font-size:1.5rem}
}