/* ============================================
   抖阴 - 动物写真与视频社区 全站样式
   品牌色: #0d5c63 (深青) #14919b (青绿) #45b7aa (浅青)
   辅助色: #f0f7f4 (浅背景) #1a1a2e (深色) #e8f4f2 (卡片背景)
   ============================================ */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#333;background:#f0f7f4;line-height:1.7}
a{color:#0d5c63;text-decoration:none;transition:color .3s}
a:hover{color:#14919b}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{color:#1a1a2e;line-height:1.3;font-weight:700}

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

/* ===== Header & Navigation ===== */
.site-header{background:#0d5c63;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{width:42px;height:42px;border-radius:8px}
.logo-wrap .brand-name{color:#fff;font-size:22px;font-weight:800;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:rgba(255,255,255,.9);padding:12px 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;background:rgba(255,255,255,.1);border-bottom-color:#45b7aa}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* Search Bar */
.search-bar{background:#0a4a50;padding:10px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%;border-radius:24px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.search-box input{flex:1;padding:10px 20px;border:none;font-size:15px;outline:none;background:#fff;color:#333}
.search-box button{padding:10px 24px;background:#14919b;color:#fff;border:none;font-size:15px;cursor:pointer;font-weight:600;transition:background .3s}
.search-box button:hover{background:#45b7aa}

/* ===== Banner ===== */
.hero-banner{position:relative;height:480px;overflow:hidden;background:#0d5c63}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(180deg,rgba(13,92,99,.3) 0%,rgba(13,92,99,.7) 100%)}
.hero-overlay h1{color:#fff;font-size:42px;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.hero-overlay p{color:rgba(255,255,255,.92);font-size:18px;max-width:680px;line-height:1.8}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:14px 0;font-size:14px;color:#666}
.breadcrumb a{color:#14919b}
.breadcrumb span{margin:0 6px;color:#999}

/* ===== Section Titles ===== */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:32px;color:#0d5c63;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:#45b7aa;margin:10px auto 0;border-radius:2px}
.section-title p{color:#666;font-size:16px;margin-top:8px}

/* ===== Sections ===== */
.section{padding:60px 0}
.section:nth-child(even){background:#fff}
.section-alt{background:#e8f4f2}

/* ===== Video Cards ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;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 28px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#1a1a2e}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.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(13,92,99,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.play-btn::after{content:'';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 .play-btn{opacity:1}
.video-info{padding:16px}
.video-info h3{font-size:16px;margin-bottom:8px;color:#1a1a2e;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:14px;font-size:13px;color:#888}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:#e8f4f2;color:#0d5c63;border-radius:12px;font-size:12px;margin-top:8px}

/* ===== Expert Cards ===== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-avatar{width:90px;height:90px;border-radius:50%;margin:0 auto 16px;background:#e8f4f2;overflow:hidden;border:3px solid #45b7aa}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:18px;color:#0d5c63;margin-bottom:6px}
.expert-card .role{color:#14919b;font-size:14px;margin-bottom:10px}
.expert-card p{font-size:14px;color:#666;line-height:1.6;margin-bottom:14px}
.expert-btns{display:flex;gap:10px;justify-content:center}
.btn-sm{padding:6px 16px;border-radius:20px;font-size:13px;border:1px solid #14919b;color:#14919b;transition:all .3s;background:transparent;cursor:pointer}
.btn-sm:hover{background:#14919b;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 8px rgba(0,0,0,.05);overflow:hidden}
.faq-question{padding:18px 24px;font-size:16px;font-weight:600;color:#0d5c63;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:#f0f7f4}
.faq-question::after{content:'+';font-size:22px;color:#14919b;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;color:#555;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(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:#e8f4f2;display:flex;align-items:center;justify-content:center;font-size:20px;color:#0d5c63;font-weight:700}
.review-name{font-weight:600;color:#1a1a2e;font-size:15px}
.review-date{font-size:12px;color:#999}
.review-stars{color:#f5a623;font-size:14px;margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:14px;color:#555;line-height:1.7}

/* ===== Contact Section ===== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.contact-card h4{color:#0d5c63;margin-bottom:12px;font-size:17px}
.contact-card p{color:#555;font-size:14px;line-height:1.7}

/* ===== Share Buttons ===== */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{padding:8px 20px;border-radius:20px;font-size:14px;color:#fff;cursor:pointer;border:none;transition:opacity .3s}
.share-btn:hover{opacity:.85}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#1a1a2e}
.share-bilibili{background:#00a1d6}

/* ===== Footer ===== */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;margin-bottom:40px}
.footer-col h4{color:#45b7aa;font-size:17px;margin-bottom:16px;font-weight:600}
.footer-col p,.footer-col a{color:rgba(255,255,255,.65);font-size:14px;line-height:2}
.footer-col a:hover{color:#45b7aa}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo img{width:48px;height:48px;border-radius:8px}
.footer-logo .brand-name{color:#fff;font-size:20px;font-weight:700}
.footer-qr{display:flex;gap:20px;margin-top:16px}
.footer-qr img{width:110px;height:110px;border-radius:8px;border:2px solid rgba(255,255,255,.1)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:#45b7aa}

/* ===== How-To Guide ===== */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px;margin-top:30px}
.howto-step{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.06);position:relative}
.step-number{width:44px;height:44px;background:#14919b;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin:0 auto 16px}
.howto-step h4{color:#0d5c63;margin-bottom:10px;font-size:17px}
.howto-step p{color:#666;font-size:14px;line-height:1.6}

/* ===== Category Grid ===== */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}
.cat-card{background:#fff;border-radius:12px;overflow:hidden;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.06);transition:transform .3s}
.cat-card:hover{transform:translateY(-4px)}
.cat-card img{width:100%;height:130px;object-fit:cover}
.cat-card h4{padding:14px 10px;color:#0d5c63;font-size:15px}

/* ===== Buttons ===== */
.btn-primary{display:inline-block;padding:12px 32px;background:#14919b;color:#fff;border-radius:24px;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:all .3s}
.btn-primary:hover{background:#0d5c63;transform:translateY(-2px)}
.btn-outline{display:inline-block;padding:10px 28px;border:2px solid #14919b;color:#14919b;border-radius:24px;font-size:15px;font-weight:600;transition:all .3s;background:transparent}
.btn-outline:hover{background:#14919b;color:#fff}

/* ===== Page Content ===== */
.page-hero{background:#0d5c63;padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:36px;color:#fff;margin-bottom:12px}
.page-hero p{color:rgba(255,255,255,.85);font-size:17px;max-width:600px;margin:0 auto}
.page-content{padding:50px 0}
.page-content p{margin-bottom:18px;font-size:15px;line-height:1.8;color:#444}
.page-content h2{font-size:26px;color:#0d5c63;margin:30px 0 16px}
.page-content h3{font-size:20px;color:#14919b;margin:24px 0 12px}

/* ===== Partner Logos ===== */
.partner-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;padding:30px 0}
.partner-logo{width:140px;height:70px;background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.06);padding:10px;font-size:14px;color:#0d5c63;font-weight:600}

/* ===== MCP Frontend ===== */
.mcp-widget{background:#1a1a2e;border-radius:12px;padding:24px;margin:20px 0;color:#fff}
.mcp-widget h4{color:#45b7aa;margin-bottom:12px}
.mcp-widget .mcp-status{display:flex;align-items:center;gap:8px;font-size:14px}
.mcp-dot{width:8px;height:8px;border-radius:50%;background:#45b7aa;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ===== Responsive ===== */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;flex-direction:column;width:100%;padding:10px 0}
  .main-nav.show{display:flex}
  .main-nav a{padding:12px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-toggle{display:block}
  .hero-banner{height:320px}
  .hero-overlay h1{font-size:28px}
  .hero-overlay p{font-size:15px}
  .section{padding:40px 0}
  .section-title h2{font-size:24px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .footer-grid{grid-template-columns:1fr}
  .footer-qr{justify-content:center}
}
@media(max-width:480px){
  .hero-banner{height:240px}
  .hero-overlay h1{font-size:22px}
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .search-box{margin:0 10px}
}

/* Interference tags - hidden but present */
div[aria-hidden="true"]{position:absolute;width:0;height:0;overflow:hidden;clip:rect(0,0,0,0);opacity:0;pointer-events:none;margin:0;padding:0;border:0}