/* ===== 海角 Auto Video Media - Main Stylesheet ===== */
/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;color:#333;background:#f8f9fa;line-height:1.8;overflow-x:hidden}
a{color:#e63946;text-decoration:none;transition:color .3s}
a:hover{color:#c1121f}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:#1a1a2e;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px 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}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-link img,.logo-link svg{height:50px;width:auto}
.logo-text{color:#fff;font-size:22px;font-weight:bold;letter-spacing:1px}
.logo-sub{color:#aaa;font-size:11px;display:block}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#ddd;padding:14px 16px;font-size:14px;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#e63946;background:rgba(230,57,70,.08)}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:2px;background:#e63946;transition:all .3s;transform:translateX(-50%)}
.main-nav a:hover::after{width:70%}
.mobile-toggle{display:none;color:#fff;font-size:24px;cursor:pointer;background:none;border:none}

/* Search Bar */
.search-bar{background:#16213e;padding:10px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;border-radius:25px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.search-form input{flex:1;padding:10px 20px;border:none;font-size:14px;outline:none;background:#fff}
.search-form button{padding:10px 24px;background:#e63946;color:#fff;border:none;cursor:pointer;font-size:14px;transition:background .3s}
.search-form button:hover{background:#c1121f}

/* Banner */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#1a1a2e}
.hero-banner>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;background:linear-gradient(180deg,rgba(26,26,46,.3) 0%,rgba(26,26,46,.7) 100%)}
.hero-overlay h1{color:#fff;font-size:42px;margin-bottom:12px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-overlay h2{color:#e63946;font-size:22px;margin-bottom:8px}
.hero-overlay p{color:#ccc;font-size:16px;max-width:700px;line-height:1.8}
.sldxj{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;justify-content:center}
.sldxj span{background:rgba(230,57,70,.85);color:#fff;padding:6px 16px;border-radius:20px;font-size:13px}
.tztqn{font-size:12px;color:#999;margin-top:8px}

/* Publish Info */
.tbvtcs{font-size:12px;color:#999;margin-top:4px}

/* Section Common */
.section{padding:50px 0}
.section-dark{background:#1a1a2e;color:#fff}
.section-gray{background:#f0f0f5}
.section-title{text-align:center;margin-bottom:36px}
.section-title h2{font-size:30px;color:#1a1a2e;margin-bottom:8px;position:relative;display:inline-block}
.section-dark .section-title h2{color:#fff}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:#e63946;margin:8px auto 0}
.section-title p{color:#888;font-size:14px;margin-top:6px}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 3px 15px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;position:relative;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#222}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-thumb .fjtcfzle{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;display:none;z-index:1}
.xpaez{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(230,57,70,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;cursor:pointer;z-index:2}
.xpaez::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .xpaez,.community-card:hover .xpaez{opacity:1}
.p7we6c{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:2}
.video-info{padding:14px}
.video-info h3{font-size:15px;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kd58o2k{display:flex;justify-content:space-between;color:#999;font-size:12px}
.kd58o2k span{display:flex;align-items:center;gap:4px}
.sninbin1{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.sninbin1 span{background:#f0f0f5;color:#666;padding:2px 10px;border-radius:12px;font-size:11px}
.p30xuas3{font-size:12px;color:#999;margin-top:6px;font-style:italic}

/* Expert Cert */
.mwefl1{font-size:12px;color:#e63946;margin-top:6px;padding:5px 10px;background:#fff5f5;border-radius:4px;border-left:3px solid #e63946;line-height:1.5}

/* Expert / Team Cards */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-card{background:#fff;border-radius:12px;overflow:hidden;text-align:center;box-shadow:0 3px 15px rgba(0,0,0,.08);transition:transform .3s}
.team-card:hover{transform:translateY(-5px)}
.team-card img{width:100%;aspect-ratio:1;object-fit:cover}
.team-card-info{padding:16px}
.team-card-info h4{font-size:16px;margin-bottom:4px}
.team-card-info .role{color:#e63946;font-size:13px;margin-bottom:6px}
.team-card-info p{font-size:13px;color:#666;line-height:1.6}
.team-card-info .btn-sm{display:inline-block;margin-top:10px;padding:6px 16px;background:#e63946;color:#fff;border-radius:20px;font-size:12px;transition:background .3s}
.team-card-info .btn-sm:hover{background:#c1121f}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:8px;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.05);overflow:hidden}
.faq-q{padding:16px 20px;font-weight:bold;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:15px;transition:background .3s}
.faq-q:hover{background:#f9f9f9}
.faq-q::after{content:'+';font-size:20px;color:#e63946;transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s;color:#666;font-size:14px;line-height:1.8}
.faq-item.active .faq-a{padding:0 20px 16px;max-height:500px}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:10px;padding:24px;box-shadow:0 3px 12px rgba(0,0,0,.06)}
.review-card .stars{color:#f4a261;font-size:16px;margin-bottom:8px}
.review-card p{font-size:14px;color:#555;line-height:1.8;margin-bottom:10px;font-style:italic}
.review-card .reviewer{font-size:13px;color:#999}

/* Brand Wall */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{background:#fff;padding:16px 28px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-size:16px;font-weight:bold;color:#333;transition:transform .3s}
.brand-wall .brand-item:hover{transform:scale(1.05)}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#fff;border-radius:10px;padding:24px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.06)}
.contact-card h4{font-size:16px;margin-bottom:10px;color:#1a1a2e}
.contact-card p{font-size:14px;color:#666;line-height:1.8}
.contact-card img{width:160px;height:160px;margin:10px auto;border-radius:8px}

/* Share Buttons */
.nex5x{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.uklp7a7x{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;color:#fff;font-size:13px;transition:opacity .3s;cursor:pointer}
.uklp7a7x:hover{opacity:.85;color:#fff}
.c99qwlq6{background:#07c160}
.a3brobux{background:#e6162d}
.dvojpxr{background:#161823}
.gbmkngw{background:#00a1d6}

/* Footer */
.site-footer{background:#0f0f23;color:#aaa;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:15px;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#e63946}
.footer-col p,.footer-col a{font-size:13px;color:#888;line-height:2}
.footer-col a:hover{color:#e63946}
.footer-col img{width:120px;border-radius:6px;margin-top:6px}
.footer-bottom{border-top:1px solid #222;padding-top:16px;text-align:center;font-size:12px;color:#666}
.footer-bottom a{color:#888}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:13px;color:#888}
.breadcrumb a{color:#e63946}
.breadcrumb span{margin:0 6px;color:#ccc}

/* AI Module */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);border-radius:12px;padding:28px;color:#fff;transition:transform .3s}
.ai-card:hover{transform:translateY(-5px)}
.ai-card h4{font-size:18px;margin-bottom:10px;color:#e63946}
.ai-card p{font-size:14px;color:#ccc;line-height:1.8}

/* Community */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 3px 12px rgba(0,0,0,.06);transition:transform .3s}
.community-card:hover{transform:translateY(-4px)}
.community-card .card-body{padding:16px}
.community-card h4{font-size:15px;margin-bottom:6px}
.community-card p{font-size:13px;color:#666}
.community-card .stats{display:flex;gap:14px;margin-top:8px;font-size:12px;color:#999}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:20px}
.howto-step{text-align:center;padding:24px;background:#fff;border-radius:10px;box-shadow:0 3px 12px rgba(0,0,0,.06)}
.howto-step .nlmb49vz{width:48px;height:48px;background:#e63946;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:bold;margin:0 auto 12px}
.howto-step h4{font-size:15px;margin-bottom:6px}
.howto-step p{font-size:13px;color:#666}

/* Buttons */
.btn{display:inline-block;padding:10px 28px;border-radius:25px;font-size:14px;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:#e63946;color:#fff}
.btn-primary:hover{background:#c1121f;color:#fff}
.btn-outline{border:2px solid #e63946;color:#e63946;background:transparent}
.btn-outline:hover{background:#e63946;color:#fff}

/* Video Modal */
.k5hgd{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:9999;align-items:center;justify-content:center}
.k5hgd.active{display:flex}
.k5hgd-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.88);cursor:pointer}
.k5hgd-content{position:relative;z-index:1;width:90%;max-width:800px;background:#111;border-radius:12px;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.5)}
.k5hgd-close{position:absolute;top:10px;right:14px;background:none;border:none;color:#fff;font-size:32px;cursor:pointer;z-index:2;line-height:1;transition:color .2s}
.k5hgd-close:hover{color:#e63946}
.k5hgd-player{padding:0}
.k5hgd-player video{width:100%;display:block;background:#000;aspect-ratio:16/9}
.k5hgd-info{padding:16px;color:#ccc}
.k5hgd-info h3{font-size:16px;color:#fff;margin-bottom:6px}
.k5hgd-info p{font-size:13px}

/* MCP Widget Placeholder */
.haqzpqa9{background:#16213e;border-radius:10px;padding:20px;text-align:center;color:#aaa;border:1px dashed #333}

/* Lazy Load Placeholder */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* Back to Top */
.nr2oeu3q{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:#e63946;color:#fff;border:none;border-radius:50%;font-size:20px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.2);z-index:999;transition:background .2s}
.nr2oeu3q:hover{background:#c1121f}
.nr2oeu3q.show{display:flex}

/* Responsive */
@media(max-width:992px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;flex-direction:column;position:absolute;top:70px;left:0;right:0;background:#1a1a2e;box-shadow:0 4px 12px rgba(0,0,0,.3)}
  .main-nav.show{display:flex}
  .main-nav a{padding:12px 20px;border-bottom:1px solid #222}
  .mobile-toggle{display:block}
  .hero-banner{height:380px}
  .hero-overlay h1{font-size:28px}
  .hero-overlay h2{font-size:18px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .header-inner{flex-wrap:wrap}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .hero-banner{height:300px}
  .hero-overlay h1{font-size:22px}
  .review-grid{grid-template-columns:1fr}
}