/* ===== 免费看片 修车改装视频社区 - 全站样式 ===== */
/* 品牌色: 深蓝 #1a3a5c | 亮橙 #ff6b35 | 深灰 #2d2d2d | 浅灰 #f5f5f5 */

/* 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:#2d2d2d;background:#fff;line-height:1.7;overflow-x:hidden}
a{color:#1a3a5c;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:#1a3a5c}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px;font-size:2rem;position:relative;padding-bottom:15px}
.section-title::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:4px;background:linear-gradient(90deg,#1a3a5c,#ff6b35);border-radius:2px}
.section-subtitle{text-align:center;color:#666;font-size:1.1rem;margin-bottom:30px;max-width:700px;margin-left:auto;margin-right:auto}

/* Header & Navigation */
.site-header{background:#1a3a5c;position:sticky;top:0;z-index:1000;box-shadow:0 2px 15px rgba(0,0,0,.2)}
.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:50px;width:auto}
.logo-text{color:#fff;font-size:1.5rem;font-weight:800;letter-spacing:1px}
.logo-text span{color:#ff6b35}

/* Nav */
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;gap:5px;align-items:center}
.nav-list li a{color:#fff;padding:8px 14px;border-radius:6px;font-size:.9rem;font-weight:500;transition:all .3s;white-space:nowrap}
.nav-list li a:hover,.nav-list li a.active{background:#ff6b35;color:#fff}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:5px}

/* Search Bar */
.search-bar{background:#15304d;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;gap:0}
.search-form input{flex:1;padding:10px 18px;border:2px solid #ff6b35;border-right:none;border-radius:25px 0 0 25px;font-size:.95rem;outline:none;background:#fff;color:#333}
.search-form button{padding:10px 25px;background:#ff6b35;color:#fff;border:2px solid #ff6b35;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;font-weight:600;transition:background .3s}
.search-form button:hover{background:#e55a2b}

/* Breadcrumb */
.breadcrumb{padding:15px 0;font-size:.9rem;color:#666}
.breadcrumb a{color:#1a3a5c}
.breadcrumb span{margin:0 8px;color:#999}

/* Banner */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(26,58,92,.85),rgba(255,107,53,.6))}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:20px;max-width:800px}
.hero-content h1{font-size:2.8rem;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.3)}
.hero-content p{font-size:1.2rem;margin-bottom:25px;line-height:1.8;opacity:.95}
.hero-btn{display:inline-block;padding:14px 35px;background:#ff6b35;color:#fff;border-radius:30px;font-size:1.1rem;font-weight:700;transition:all .3s;box-shadow:0 4px 15px rgba(255,107,53,.4)}
.hero-btn:hover{background:#e55a2b;transform:translateY(-2px);color:#fff;box-shadow:0 6px 20px rgba(255,107,53,.5)}

/* Section Spacing */
.section{padding:60px 0}
.section-alt{background:#f8f9fa}
.section-dark{background:#1a3a5c;color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark .section-title::after{background:linear-gradient(90deg,#ff6b35,#ffa07a)}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:25px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s;position:relative}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#111}
.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)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(255,107,53,.9);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-left:22px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:4px}
.video-card:hover .play-btn{opacity:1}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:.8rem;z-index:3}
.video-stats{position:absolute;bottom:8px;left:8px;display:flex;gap:10px;z-index:3}
.video-stats span{background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:15px}
.video-info h3{font-size:1.05rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#2d2d2d}
.video-info .meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:#888}
.video-info .tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-info .tags span{background:#f0f4f8;color:#1a3a5c;padding:3px 10px;border-radius:15px;font-size:.78rem}

/* Tag Labels */
.tag-video{background:#ff6b35!important;color:#fff!important}
.tag-hot{background:#e74c3c!important;color:#fff!important}

/* Team Grid */
.team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:30px}
.team-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);text-align:center;transition:all .3s}
.team-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.team-card img{width:100%;height:280px;object-fit:cover}
.team-card .info{padding:20px}
.team-card h3{font-size:1.2rem;margin-bottom:5px;color:#1a3a5c}
.team-card .role{color:#ff6b35;font-size:.9rem;font-weight:600;margin-bottom:10px}
.team-card p{font-size:.9rem;color:#666;line-height:1.6}
.team-card .social-links{display:flex;justify-content:center;gap:10px;margin-top:12px}
.team-card .social-links a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#f0f4f8;color:#1a3a5c;font-size:.9rem;transition:all .3s}
.team-card .social-links a:hover{background:#ff6b35;color:#fff}
.team-btn{display:inline-block;margin-top:12px;padding:8px 20px;border:2px solid #ff6b35;color:#ff6b35;border-radius:20px;font-size:.85rem;font-weight:600;transition:all .3s}
.team-btn:hover{background:#ff6b35;color:#fff}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #e8e8e8;border-radius:10px;margin-bottom:12px;overflow:hidden;transition:all .3s}
.faq-item:hover{border-color:#ff6b35}
.faq-question{padding:18px 20px;background:#fff;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;color:#1a3a5c;transition:all .3s}
.faq-question:hover{background:#f8f9fa}
.faq-question::after{content:'+';font-size:1.4rem;color:#ff6b35;transition:transform .3s;font-weight:700}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .4s ease;background:#f8f9fa}
.faq-item.active .faq-answer{padding:15px 20px;max-height:500px}
.faq-answer p{color:#555;line-height:1.8;font-size:.95rem}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.review-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 4px 20px rgba(0,0,0,.08);position:relative;transition:all .3s}
.review-card:hover{transform:translateY(-3px);box-shadow:0 6px 25px rgba(0,0,0,.12)}
.review-card::before{content:'\201C';position:absolute;top:10px;left:15px;font-size:3rem;color:#ff6b35;opacity:.3;font-family:serif}
.review-stars{color:#f4a623;font-size:1rem;margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:.95rem;color:#555;line-height:1.7;margin-bottom:15px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:#1a3a5c;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.review-name{font-weight:600;color:#1a3a5c;font-size:.9rem}
.review-date{font-size:.8rem;color:#999}

/* Partner Logos */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall .partner-item{background:#fff;padding:20px 30px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);font-size:1.1rem;font-weight:700;color:#1a3a5c;transition:all .3s;border:2px solid transparent}
.partner-wall .partner-item:hover{border-color:#ff6b35;transform:translateY(-3px)}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px;counter-reset:step}
.howto-step{background:#fff;border-radius:12px;padding:30px 25px;box-shadow:0 4px 20px rgba(0,0,0,.08);text-align:center;position:relative;counter-increment:step}
.howto-step::before{content:counter(step);display:flex;align-items:center;justify-content:center;width:50px;height:50px;background:linear-gradient(135deg,#1a3a5c,#ff6b35);color:#fff;border-radius:50%;font-size:1.3rem;font-weight:800;margin:0 auto 15px}
.howto-step h4{color:#1a3a5c;margin-bottom:10px;font-size:1.1rem}
.howto-step p{color:#666;font-size:.9rem;line-height:1.6}

/* Contact Info */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}
.contact-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 20px rgba(0,0,0,.08);text-align:center}
.contact-card h3{color:#1a3a5c;margin-bottom:15px;font-size:1.2rem}
.contact-card p{color:#666;font-size:.95rem;line-height:1.8}
.contact-card .icon{font-size:2.5rem;margin-bottom:15px;color:#ff6b35}

/* Share Buttons */
.share-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;color:#fff;font-size:.85rem;font-weight:600;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);opacity:.9;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* Footer */
.site-footer{background:#111;color:#ccc;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:1.1rem;margin-bottom:15px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:3px;background:#ff6b35;border-radius:2px}
.footer-col p,.footer-col li{font-size:.9rem;line-height:2;color:#aaa}
.footer-col a{color:#aaa;transition:color .3s}
.footer-col a:hover{color:#ff6b35}
.footer-col img{border-radius:8px;margin-top:5px}
.footer-bottom{border-top:1px solid #333;padding:20px 0;text-align:center;font-size:.85rem;color:#888}
.footer-bottom a{color:#ff6b35}

/* AI Section */
.ai-features{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px}
.ai-card{background:linear-gradient(135deg,#1a3a5c,#2a5a8c);border-radius:12px;padding:30px;color:#fff;transition:all .3s}
.ai-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(26,58,92,.4)}
.ai-card h3{color:#ff6b35;margin-bottom:12px;font-size:1.15rem}
.ai-card p{color:rgba(255,255,255,.85);font-size:.95rem;line-height:1.7}
.ai-card .ai-icon{font-size:2rem;margin-bottom:12px}

/* Community Tags */
.community-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}
.community-tags a{display:inline-block;padding:8px 20px;background:rgba(255,255,255,.15);color:#fff;border-radius:25px;font-size:.9rem;transition:all .3s;border:1px solid rgba(255,255,255,.2)}
.community-tags a:hover{background:#ff6b35;border-color:#ff6b35;color:#fff}

/* Community Tags Light (for light background) */
.community-tags-light{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}
.community-tags-light a{display:inline-block;padding:8px 20px;background:#1a3a5c;color:#fff;border-radius:25px;font-size:.9rem;transition:all .3s;border:1px solid #1a3a5c}
.community-tags-light a:hover{background:#ff6b35;border-color:#ff6b35;color:#fff}

/* Trust Grid (EEAT) */
.trust-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.trust-item{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 20px rgba(0,0,0,.08);text-align:center;transition:all .3s;border:2px solid transparent}
.trust-item:hover{transform:translateY(-3px);box-shadow:0 6px 25px rgba(0,0,0,.12);border-color:#ff6b35}
.trust-item .trust-icon{font-size:2.5rem;margin-bottom:15px}
.trust-item h4{color:#1a3a5c;font-size:1.1rem;margin-bottom:10px}
.trust-item p{color:#666;font-size:.9rem;line-height:1.7}

/* Page Header */
.page-header{background:linear-gradient(135deg,#1a3a5c,#2a5a8c);padding:60px 0;text-align:center;color:#fff;position:relative;overflow:hidden}
.page-header h1{font-size:2.2rem;color:#fff;margin-bottom:10px}
.page-header p{font-size:1.1rem;opacity:.9;max-width:600px;margin:0 auto}

/* Content Sections */
.content-block{margin-bottom:40px}
.content-block h2{font-size:1.6rem;margin-bottom:15px;color:#1a3a5c}
.content-block p{color:#555;line-height:1.9;font-size:1rem;margin-bottom:15px}

/* Info Grid */
.info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}
.info-item{background:#f8f9fa;border-radius:10px;padding:25px;text-align:center;transition:all .3s}
.info-item:hover{background:#fff;box-shadow:0 4px 15px rgba(0,0,0,.1)}
.info-item .num{font-size:2rem;font-weight:800;color:#ff6b35;margin-bottom:5px}
.info-item .label{font-size:.9rem;color:#666}

/* QR Code Section */
.qr-section{display:flex;justify-content:center;gap:40px;flex-wrap:wrap}
.qr-item{text-align:center}
.qr-item img{width:160px;height:160px;border-radius:10px;margin-bottom:10px}
.qr-item p{font-size:.9rem;color:#666;font-weight:600}

/* Responsive */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;order:3}
  .main-nav.active{display:block}
  .nav-list{flex-direction:column;padding:10px 0}
  .nav-list li a{display:block;padding:10px 15px}
  .mobile-toggle{display:block}
  .hero-banner{height:400px}
  .hero-content h1{font-size:1.8rem}
  .hero-content p{font-size:1rem}
  .section-title{font-size:1.5rem}
  .video-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .search-form{max-width:100%;padding:0 10px}
  .contact-grid{grid-template-columns:1fr}
  .ai-features{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero-banner{height:320px}
  .hero-content h1{font-size:1.5rem}
  .container{padding:0 15px}
  .section{padding:40px 0}
}