/* ============================================
   少萝 视频社区 - 全站样式表
   品牌：少萝 | 域名：Ltpyhdm.cn
   原创设计 - 深蓝黑+活力红配色方案
   ============================================ */

/* 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:#f5f5f5;line-height:1.7;overflow-x:hidden}
a{color:#e94560;text-decoration:none;transition:color .3s}
a:hover{color:#0f3460}
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:#1a1a2e}

/* Container */
.container{width:100%;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 20px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:48px;width:auto}
.logo-wrap .brand-name{color:#fff;font-size:24px;font-weight:800;letter-spacing:2px}
.logo-wrap .brand-name span{color:#e94560}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#ccc;padding:10px 16px;font-size:15px;font-weight:500;transition:all .3s;border-bottom:3px solid transparent}
.main-nav a:hover,.main-nav a.active{color:#fff;border-bottom-color:#e94560}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer}

/* Search Bar */
.search-bar{background:#151528;padding:10px 0}
.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 #0f3460;border-right:none;border-radius:25px 0 0 25px;background:#1a1a2e;color:#fff;font-size:14px;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#e94560}
.search-box input::placeholder{color:#666}
.search-box button{padding:10px 24px;background:#e94560;color:#fff;border:2px solid #e94560;border-radius:0 25px 25px 0;cursor:pointer;font-size:14px;font-weight:600;transition:background .3s}
.search-box button:hover{background:#d63050}

/* ============ Banner ============ */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner .banner-bg{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;filter:brightness(.5)}
.hero-banner .banner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(26,26,46,.85) 0%,rgba(15,52,96,.6) 50%,rgba(233,69,96,.3) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-content h1{font-size:48px;margin-bottom:16px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-content h1 .highlight{color:#e94560}
.hero-content p{font-size:18px;margin-bottom:24px;opacity:.9;line-height:1.8}
.hero-content .hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:24px}
.hero-content .hero-tags span{background:rgba(233,69,96,.25);border:1px solid rgba(233,69,96,.5);padding:6px 16px;border-radius:20px;font-size:13px}
.hero-btn{display:inline-block;padding:14px 36px;background:#e94560;color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:all .3s;box-shadow:0 4px 15px rgba(233,69,96,.4)}
.hero-btn:hover{background:#d63050;transform:translateY(-2px);box-shadow:0 6px 20px rgba(233,69,96,.5);color:#fff}

/* ============ Breadcrumb ============ */
.breadcrumb{background:#eee;padding:10px 0;font-size:13px;color:#666}
.breadcrumb a{color:#0f3460}
.breadcrumb span{margin:0 6px;color:#999}

/* ============ Section Common ============ */
.section{padding:60px 0}
.section-dark{background:#1a1a2e;color:#fff}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-alt{background:#eef2f7}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:32px;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:"";display:block;width:60px;height:4px;background:#e94560;margin:10px auto 0;border-radius:2px}
.section-title p{color:#777;font-size:15px;margin-top:8px}
.section-dark .section-title p{color:#aaa}

/* ============ Video Card ============ */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:64px;height:64px;background:rgba(233,69,96,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;cursor:pointer}
.video-play-btn::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:12px 0 12px 22px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card:hover .video-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:12px}
.video-info{padding:16px}
.video-info h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .video-meta{display:flex;align-items:center;gap:12px;color:#999;font-size:13px}
.video-info .video-meta .views::before{content:"▶ "}
.video-info .video-meta .likes::before{content:"♥ "}
.video-info .video-meta .comments::before{content:"💬 "}
.video-tag{display:inline-block;background:#f0f4ff;color:#0f3460;padding:3px 10px;border-radius:12px;font-size:12px;margin-top:8px;margin-right:4px}

/* ============ Feature Grid ============ */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s;border-top:4px solid transparent}
.feature-card:hover{border-top-color:#e94560;transform:translateY(-4px)}
.feature-card .icon{font-size:42px;margin-bottom:16px;display:block}
.feature-card h4{font-size:18px;margin-bottom:10px}
.feature-card p{color:#666;font-size:14px;line-height:1.6}

/* ============ Team ============ */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);text-align:center;transition:all .3s}
.team-card:hover{transform:translateY(-4px)}
.team-card .team-photo{width:100%;aspect-ratio:1;object-fit:cover}
.team-card .team-info{padding:20px}
.team-card .team-info h4{font-size:18px;margin-bottom:4px}
.team-card .team-info .role{color:#e94560;font-size:14px;margin-bottom:8px}
.team-card .team-info p{color:#666;font-size:13px;line-height:1.6}
.team-card .team-links{display:flex;justify-content:center;gap:10px;padding:0 20px 20px}
.team-card .team-links a{padding:6px 14px;border-radius:20px;font-size:12px;border:1px solid #e94560;color:#e94560;transition:all .3s}
.team-card .team-links a:hover{background:#e94560;color:#fff}

/* ============ FAQ ============ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq-question{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s;font-size:15px}
.faq-question:hover{background:#f8f9fa}
.faq-question::after{content:"+";font-size:22px;color:#e94560;transition:transform .3s;font-weight:700}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#666;font-size:14px;line-height:1.8}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:500px}

/* ============ Reviews ============ */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.review-card .review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-card .review-avatar{width:48px;height:48px;border-radius:50%;background:#e94560;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}
.review-card .review-name{font-weight:600;font-size:15px}
.review-card .review-date{color:#999;font-size:12px}
.review-card .review-stars{color:#ffc107;font-size:14px;margin-bottom:8px}
.review-card .review-text{color:#555;font-size:14px;line-height:1.8}

/* ============ Partners ============ */
.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:18px;font-weight:700;color:#1a1a2e;transition:all .3s}
.partner-wall .partner-item:hover{box-shadow:0 4px 20px rgba(0,0,0,.12);transform:scale(1.05)}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.contact-card .contact-icon{font-size:36px;margin-bottom:12px}
.contact-card h4{margin-bottom:8px;font-size:16px}
.contact-card p{color:#666;font-size:14px;line-height:1.8}

/* ============ Share Buttons ============ */
.share-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;color:#fff;font-size:13px;font-weight:500;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-btn.wechat{background:#07c160}
.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00a1d6}

/* ============ Footer ============ */
.site-footer{background:#0d0d1a;color:#aaa;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:3px;background:#e94560;border-radius:2px}
.footer-col p{font-size:13px;line-height:1.8;margin-bottom:8px}
.footer-col a{color:#aaa;font-size:13px;display:block;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#e94560}
.footer-col .qr-img{width:120px;border-radius:8px;margin-top:8px}
.footer-bottom{border-top:1px solid #222;padding:20px 0;text-align:center;font-size:13px}
.footer-bottom .update-time{margin-top:6px;color:#666;font-size:12px}

/* ============ MCP Widget ============ */
.mcp-widget{background:#151528;border:1px solid #2a2a4a;border-radius:12px;padding:24px;margin:20px 0}
.mcp-widget h4{color:#16c79a;margin-bottom:12px}
.mcp-widget .mcp-status{display:flex;align-items:center;gap:8px;color:#aaa;font-size:13px}
.mcp-widget .mcp-dot{width:8px;height:8px;border-radius:50%;background:#16c79a;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ============ How-To Guide ============ */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;position:relative;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.howto-step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#e94560;color:#fff;border-radius:50%;font-weight:700;font-size:18px;margin:0 auto 12px}
.howto-step h4{margin-bottom:8px;font-size:15px}
.howto-step p{color:#666;font-size:13px}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.active{display:flex}
  .nav-toggle{display:block}
  .hero-banner{height:400px}
  .hero-content h1{font-size:28px}
  .hero-content p{font-size:15px}
  .section{padding:40px 0}
  .section-title h2{font-size:24px}
  .video-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .partner-wall{gap:15px}
}

/* ============ Utilities ============ */
.text-center{text-align:center}
.text-red{color:#e94560}
.text-blue{color:#0f3460}
.text-green{color:#16c79a}
.mt-20{margin-top:20px}
.mb-20{margin-bottom:20px}
.mt-40{margin-top:40px}
.mb-40{margin-bottom:40px}
.btn-primary{display:inline-block;padding:12px 28px;background:#e94560;color:#fff;border-radius:25px;font-weight:600;transition:all .3s;border:none;cursor:pointer;font-size:14px}
.btn-primary:hover{background:#d63050;color:#fff;transform:translateY(-2px)}
.btn-outline{display:inline-block;padding:12px 28px;border:2px solid #e94560;color:#e94560;border-radius:25px;font-weight:600;transition:all .3s;cursor:pointer;font-size:14px;background:transparent}
.btn-outline:hover{background:#e94560;color:#fff}

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

/* Video overlay for inner pages */
.video-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.9);z-index:9999;display:none;align-items:center;justify-content:center}
.video-overlay.active{display:flex}
.video-overlay .close-btn{position:absolute;top:20px;right:20px;color:#fff;font-size:32px;cursor:pointer}
.video-overlay .video-placeholder{width:80%;max-width:900px;aspect-ratio:16/9;background:#000;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}