/*
   看片 - 修车改装视频社区原创样式表
   配色：深午夜蓝 #0B1D3A + 电光橙 #F27A1A + 钛灰 #2C3E50 + 暖白 #F8F9FA
*/
*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0B1D3A;--accent:#F27A1A;--accent-light:#FDAB5A;--dark:#1A1A2E;--gray:#2C3E50;--light:#F8F9FA;--text:#E0E0E0;--text-dark:#333;--card-bg:#111827;--border:#1E3A5F;--gradient:linear-gradient(135deg,#0B1D3A 0%,#1A1A2E 100%)}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--dark);color:var(--text);line-height:1.7}
a{color:var(--accent);text-decoration:none;transition:color .3s}
a:hover{color:var(--accent-light)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 头部导航 */
.site-header{background:rgba(11,29,58,.97);backdrop-filter:blur(12px);position:sticky;top:0;z-index:1000;border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-link img{height:48px;width:auto}
.logo-text{font-size:1.4rem;font-weight:700;color:#fff;letter-spacing:1px}
.main-nav{display:flex;gap:6px}
.main-nav a{color:#ccc;padding:8px 14px;border-radius:6px;font-size:.9rem;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:var(--accent)}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* 搜索框 */
.search-bar{background:var(--primary);padding:12px 0;border-bottom:1px solid var(--border)}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%}
.search-form input{flex:1;padding:10px 18px;border:2px solid var(--border);border-right:none;border-radius:25px 0 0 25px;background:var(--card-bg);color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-form input:focus{border-color:var(--accent)}
.search-form button{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-form button:hover{background:var(--accent-light)}

/* Hero Banner */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,rgba(11,29,58,.7),rgba(26,26,46,.85))}
.hero-content{position:relative;z-index:2;text-align:center;padding:0 20px;max-width:800px}
.hero-content h1{font-size:2.8rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-content h1 span{color:var(--accent)}
.hero-content p{font-size:1.15rem;color:rgba(255,255,255,.85);margin-bottom:24px;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:var(--accent);color:#fff;border-radius:30px;font-weight:600;transition:all .3s;border:none;cursor:pointer;font-size:1rem}
.btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 6px 20px rgba(242,122,26,.4)}
.btn-outline{display:inline-block;padding:12px 32px;border:2px solid var(--accent);color:var(--accent);border-radius:30px;font-weight:600;transition:all .3s;cursor:pointer;font-size:1rem;background:transparent}
.btn-outline:hover{background:var(--accent);color:#fff}

/* 通用板块 */
.section{padding:60px 0}
.section-dark{background:var(--dark)}
.section-alt{background:var(--card-bg)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#fff;margin-bottom:10px}
.section-title h2 span{color:var(--accent)}
.section-title p{color:var(--text);font-size:1rem;max-width:600px;margin:0 auto}

/* 视频卡片网格 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:var(--card-bg);border-radius:12px;overflow:hidden;border:1px solid var(--border);transition:all .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(242,122,26,.15);border-color:var(--accent)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb video,.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(242,122,26,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;cursor:pointer;z-index:3}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card:hover .play-btn{opacity:1}
.video-meta{padding:16px}
.video-meta h3{font-size:1.05rem;color:#fff;margin-bottom:8px;line-height:1.4}
.video-meta p{font-size:.85rem;color:#999;line-height:1.5}
.video-stats{display:flex;gap:16px;margin-top:10px;font-size:.8rem;color:#777}
.video-stats span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:rgba(242,122,26,.15);color:var(--accent);border-radius:12px;font-size:.75rem;margin-top:8px}

/* 服务模块 */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:30px 20px;text-align:center;transition:all .3s}
.service-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.service-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,var(--accent),var(--accent-light));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.service-card h3{color:#fff;font-size:1rem;margin-bottom:8px}
.service-card p{color:#999;font-size:.85rem;line-height:1.5}

/* 专家展示 */
.experts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:24px;text-align:center;transition:all .3s}
.expert-card:hover{border-color:var(--accent)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid var(--accent)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{color:#fff;font-size:1.1rem;margin-bottom:4px}
.expert-card .expert-title{color:var(--accent);font-size:.85rem;margin-bottom:10px}
.expert-card p{color:#999;font-size:.85rem;line-height:1.5}
.expert-links{display:flex;gap:10px;justify-content:center;margin-top:14px}
.expert-links a{padding:6px 16px;border:1px solid var(--accent);color:var(--accent);border-radius:20px;font-size:.8rem;transition:all .3s}
.expert-links a:hover{background:var(--accent);color:#fff}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#fff;font-weight:600;font-size:.95rem;transition:background .3s}
.faq-question:hover{background:rgba(242,122,26,.08)}
.faq-question::after{content:'+';font-size:1.3rem;color:var(--accent);transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:300px}
.faq-answer p{color:#bbb;font-size:.9rem;line-height:1.7}

/* 用户评论 */
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:24px}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-info h4{color:#fff;font-size:.95rem}
.review-info span{color:#777;font-size:.8rem}
.review-stars{color:var(--accent);margin-bottom:8px;font-size:.9rem}
.review-card p{color:#bbb;font-size:.9rem;line-height:1.6}

/* 合作品牌墙 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.brand-wall-item{width:120px;height:60px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#999;font-size:.85rem;font-weight:600;transition:all .3s}
.brand-wall-item:hover{border-color:var(--accent);color:var(--accent)}

/* 社交分享 */
.share-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.share-btn{padding:8px 20px;border-radius:20px;font-size:.85rem;color:#fff;transition:all .3s;cursor:pointer;border:none}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}
.share-btn:hover{opacity:.85;transform:translateY(-2px)}

/* 页脚 */
.site-footer{background:var(--primary);border-top:1px solid var(--border);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--accent);display:inline-block}
.footer-col p,.footer-col a{color:#999;font-size:.85rem;line-height:1.8;display:block}
.footer-col a:hover{color:var(--accent)}
.footer-qr{display:flex;gap:20px;margin-top:10px}
.footer-qr img{width:100px;height:100px;border-radius:8px;border:1px solid var(--border)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border);color:#666;font-size:.8rem}
.footer-bottom a{color:var(--accent)}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:36px}
.footer-logo span{color:#fff;font-weight:700;font-size:1.1rem}

/* 面包屑 */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#777}
.breadcrumb a{color:var(--accent)}
.breadcrumb span{margin:0 6px;color:#555}

/* 内页通用 */
.page-hero{padding:60px 0;text-align:center;background:var(--primary)}
.page-hero h1{font-size:2.2rem;color:#fff;margin-bottom:10px}
.page-hero p{color:var(--text);max-width:600px;margin:0 auto}
.content-section{padding:40px 0}
.content-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:30px;margin-bottom:24px}
.content-card h3{color:#fff;font-size:1.2rem;margin-bottom:12px}
.content-card p{color:#bbb;line-height:1.7}

/* EEAT信任徽章 */
.trust-badges{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin:20px 0}
.trust-badge{display:flex;align-items:center;gap:8px;padding:8px 18px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;color:#ccc;font-size:.85rem}
.trust-badge .badge-icon{color:var(--accent);font-size:1.1rem}

/* 联系表单 */
.contact-form{max-width:600px;margin:0 auto}
.form-group{margin-bottom:18px}
.form-group label{display:block;color:#ccc;margin-bottom:6px;font-size:.9rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;color:#fff;font-size:.9rem;outline:none;transition:border-color .3s}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent)}
.form-group textarea{min-height:120px;resize:vertical}

/* 内容更新信息 */
.update-info{display:flex;gap:20px;flex-wrap:wrap;padding:12px 20px;background:rgba(242,122,26,.06);border-radius:8px;font-size:.8rem;color:#999;margin:20px 0;border-left:3px solid var(--accent)}

/* 响应式 */
@media(max-width:992px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .experts-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .hero-content h1{font-size:2rem}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--primary);flex-direction:column;padding:16px;border-top:1px solid var(--border)}
  .main-nav.show{display:flex}
  .nav-toggle{display:block}
  .video-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .experts-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-banner{height:380px}
  .hero-content h1{font-size:1.6rem}
  .hero-btns{flex-direction:column;align-items:center}
  .header-inner{padding:8px 16px}
}
@media(max-width:480px){
  .hero-banner{height:300px}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
}