/* =============================================
   午夜大片 - 动物写真与视频社区 全站样式表
   品牌色: #00B4AA (主色) #008B8B (深色) #E8F8F5 (浅色)
   域名: yuanzunxs.com.cn
   ============================================= */

/* 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;line-height:1.7;background:#fff}
a{color:#00B4AA;text-decoration:none;transition:color .3s}
a:hover{color:#008B8B}
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:#1a1a1a}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header / Nav ===== */
.site-header{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{height:42px;width:auto}
.site-logo span{font-size:22px;font-weight:800;color:#00B4AA}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 14px;font-size:15px;color:#333;border-radius:6px;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#E8F8F5;color:#00B4AA}

/* Search Box */
.search-box{position:relative;margin-left:12px}
.search-box input{width:200px;padding:8px 36px 8px 14px;border:2px solid #e0e0e0;border-radius:20px;font-size:14px;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#00B4AA}
.search-box button{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:#00B4AA;border:none;color:#fff;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center}

/* Mobile Nav Toggle */
.nav-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:#333}

/* ===== Banner ===== */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#1a1a1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.75}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(180deg,rgba(0,0,0,.2),rgba(0,0,0,.5))}
.hero-overlay h1{font-size:42px;color:#fff;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-overlay p{font-size:18px;color:rgba(255,255,255,.9);max-width:700px;line-height:1.8;text-shadow:0 1px 4px rgba(0,0,0,.4)}

/* ===== Section Common ===== */
.section{padding:60px 0}
.section-alt{background:#F7FFFE}
.section-dark{background:#1a2332;color:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:32px;color:#1a1a1a;margin-bottom:8px}
.section-dark .section-title h2{color:#fff}
.section-title p{font-size:16px;color:#666}
.section-dark .section-title p{color:rgba(255,255,255,.7)}

/* ===== Video Card Grid ===== */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,180,170,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#eee}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.3)}
.video-card:hover .play-btn{opacity:1}
.play-btn span{width:56px;height:56px;background:rgba(0,180,170,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;box-shadow:0 4px 16px rgba(0,180,170,.4)}
.video-info{padding:14px 16px}
.video-info h3{font-size:15px;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.video-meta{display:flex;gap:14px;font-size:13px;color:#999}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 8px;background:#E8F8F5;color:#00B4AA;border-radius:4px;font-size:12px;margin-top:6px}

/* ===== Feature Cards ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{padding:32px 24px;background:#fff;border-radius:12px;box-shadow:0 4px 16px rgba(0,0,0,.06);text-align:center;transition:transform .3s}
.feature-card:hover{transform:translateY(-4px)}
.feature-icon{width:64px;height:64px;margin:0 auto 16px;background:#E8F8F5;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;color:#00B4AA}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{font-size:14px;color:#666}

/* ===== Expert Section ===== */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06);text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100%;height:220px;object-fit:cover}
.expert-card-body{padding:20px}
.expert-card h3{font-size:18px;margin-bottom:4px}
.expert-card .role{color:#00B4AA;font-size:14px;margin-bottom:8px}
.expert-card p{font-size:13px;color:#666;margin-bottom:12px}
.btn{display:inline-block;padding:8px 20px;border-radius:6px;font-size:14px;transition:all .3s;border:none;cursor:pointer}
.btn-primary{background:#00B4AA;color:#fff}
.btn-primary:hover{background:#008B8B;color:#fff}
.btn-outline{border:1px solid #00B4AA;color:#00B4AA}
.btn-outline:hover{background:#00B4AA;color:#fff}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #eee;border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-question{padding:16px 20px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:#fafafa;transition:background .3s}
.faq-question:hover{background:#E8F8F5}
.faq-question .arrow{transition:transform .3s;font-size:14px;color:#00B4AA}
.faq-item.open .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;font-size:14px;color:#555;line-height:1.8}
.faq-item.open .faq-answer{max-height:300px;padding:12px 20px 20px}

/* ===== Reviews ===== */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:#E8F8F5;display:flex;align-items:center;justify-content:center;font-size:20px;color:#00B4AA;font-weight:700}
.review-name{font-weight:600;font-size:15px}
.review-date{font-size:12px;color:#999}
.review-stars{color:#FFB800;font-size:14px;margin-bottom:8px}
.review-text{font-size:14px;color:#555;line-height:1.8}

/* ===== Community Grid ===== */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{position:relative;border-radius:12px;overflow:hidden;height:240px}
.community-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.community-card:hover img{transform:scale(1.05)}
.community-card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.6),transparent);display:flex;flex-direction:column;justify-content:flex-end;padding:20px}
.community-card h3{color:#fff;font-size:18px;margin-bottom:4px}
.community-card p{color:rgba(255,255,255,.8);font-size:13px}

/* ===== Contact Info ===== */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.contact-info-list{display:flex;flex-direction:column;gap:16px}
.contact-item{display:flex;align-items:flex-start;gap:12px;padding:16px;background:#F7FFFE;border-radius:10px}
.contact-item .icon{width:40px;height:40px;background:#00B4AA;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;flex-shrink:0}
.contact-item h4{font-size:15px;margin-bottom:2px}
.contact-item p{font-size:13px;color:#666}
.qrcode-group{display:flex;gap:24px;justify-content:center}
.qrcode-item{text-align:center}
.qrcode-item img{width:160px;height:160px;border-radius:8px;margin-bottom:8px}
.qrcode-item p{font-size:13px;color:#666}

/* ===== Share Buttons ===== */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:20px;font-size:13px;color:#fff;transition:opacity .3s}
.share-btn:hover{opacity:.85;color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#1a1a1a}
.share-bilibili{background:#00A1D6}

/* ===== Footer ===== */
.site-footer{background:#1a2332;color:rgba(255,255,255,.7);padding:40px 0 20px}
.footer-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:14px;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#00B4AA}
.footer-col p{font-size:13px;line-height:1.8}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:36px}
.footer-logo span{font-size:20px;font-weight:800;color:#00B4AA}
.footer-bottom{text-align:center;padding:20px 0 0;margin-top:30px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.footer-bottom a{color:#00B4AA}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:14px 0;font-size:14px;color:#999}
.breadcrumb a{color:#00B4AA}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ===== Page Header ===== */
.page-header{background:linear-gradient(135deg,#00B4AA,#008B8B);padding:50px 0;text-align:center;color:#fff}
.page-header h1{font-size:36px;color:#fff;margin-bottom:8px}
.page-header p{font-size:16px;opacity:.85}

/* ===== Article Content ===== */
.article-content{max-width:900px;margin:0 auto;padding:40px 20px}
.article-content h2{font-size:24px;margin:30px 0 14px;color:#1a1a1a;border-left:4px solid #00B4AA;padding-left:12px}
.article-content h3{font-size:20px;margin:24px 0 10px;color:#333}
.article-content p{margin-bottom:16px;font-size:15px;line-height:1.9;color:#444}
.article-content img{border-radius:10px;margin:20px 0}

/* ===== How-To Guide ===== */
.howto-steps{max-width:800px;margin:0 auto}
.howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.step-num{width:48px;height:48px;background:#00B4AA;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:700;flex-shrink:0}
.step-content h3{font-size:17px;margin-bottom:6px}
.step-content p{font-size:14px;color:#666}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .footer-inner{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.show{display:flex}
  .nav-toggle{display:block}
  .search-box{width:100%;margin:10px 0 0}
  .search-box input{width:100%}
  .hero-banner{height:360px}
  .hero-overlay h1{font-size:28px}
  .hero-overlay p{font-size:15px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .section{padding:40px 0}
  .section-title h2{font-size:24px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .qrcode-group{flex-direction:column;align-items:center}
}

/* ===== Lazy Load Placeholder ===== */
img[data-src]{background:#f0f0f0;min-height:120px}

/* ===== MCP Frontend Placeholder ===== */
.mcp-widget{background:#F7FFFE;border:1px dashed #00B4AA;border-radius:10px;padding:20px;text-align:center;color:#666;font-size:14px}