/* ============================================
   抖阴 - 动物写真视频社区 全站样式
   品牌色: 深青 #0D6E6E  暖橙 #E8853D  浅灰 #F5F5F0
   ============================================ */

/* 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:#2D2D2D;background:#F5F5F0;line-height:1.7}
a{color:#0D6E6E;text-decoration:none;transition:color .3s}
a:hover{color:#E8853D}
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 ============ */
.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: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{font-size:1.5rem;font-weight:800;color:#0D6E6E}
.logo-wrap .brand-name span{color:#E8853D}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:10px 16px;font-size:.95rem;color:#333;font-weight:500;transition:all .3s;border-bottom:3px solid transparent}
.main-nav a:hover,.main-nav a.active{color:#0D6E6E;border-bottom-color:#E8853D}
.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#0D6E6E}

/* Search Bar */
.search-bar{background:#F0F0EA;padding:12px 0;border-bottom:1px solid #E0E0D8}
.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 #0D6E6E;border-right:none;border-radius:25px 0 0 25px;font-size:.95rem;outline:none;background:#fff}
.search-box input:focus{border-color:#E8853D}
.search-box button{padding:10px 24px;background:#0D6E6E;color:#fff;border:2px solid #0D6E6E;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-box button:hover{background:#095959}

/* ============ 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(.65)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-content h1 .brand-hl{color:#E8853D}
.hero-content p{font-size:1.2rem;max-width:700px;margin:0 auto 24px;text-shadow:1px 1px 4px rgba(0,0,0,.4)}
.hero-content .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-block;padding:12px 32px;border-radius:30px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.btn-primary{background:#E8853D;color:#fff}
.btn-primary:hover{background:#D4732E;color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#0D6E6E}
.btn-teal{background:#0D6E6E;color:#fff}
.btn-teal:hover{background:#095959;color:#fff}

/* ============ Sections ============ */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-dark{background:#1A2E2E;color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#0D6E6E;margin-bottom:8px}
.section-title .subtitle{font-size:1.05rem;color:#666}
.section-title .divider{width:60px;height:4px;background:#E8853D;margin:12px auto 0;border-radius:2px}

/* ============ 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}
.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:#1A1A1A}
.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(232,133,61,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.play-btn::after{content:"";border-style:solid;border-width:12px 0 12px 20px;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:1.05rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:16px;font-size:.85rem;color:#888}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.video-tags span{background:#E8F5F5;color:#0D6E6E;padding:3px 10px;border-radius:12px;font-size:.8rem}

/* Duration badge */
.duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.8rem}

/* ============ Category Tabs ============ */
.cat-tabs{display:flex;gap:12px;justify-content:center;margin-bottom:32px;flex-wrap:wrap}
.cat-tabs .tab{padding:8px 22px;border-radius:20px;background:#E8F5F5;color:#0D6E6E;cursor:pointer;font-size:.9rem;transition:all .3s;border:none}
.cat-tabs .tab:hover,.cat-tabs .tab.active{background:#0D6E6E;color:#fff}

/* ============ Feature Grid ============ */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.feature-card{background:#fff;padding:28px 24px;border-radius:12px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:transform .3s}
.feature-card:hover{transform:translateY(-4px)}
.feature-icon{font-size:2.5rem;margin-bottom:16px}
.feature-card h3{font-size:1.1rem;color:#0D6E6E;margin-bottom:10px}
.feature-card p{font-size:.92rem;color:#666}

/* ============ Expert Cards ============ */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);text-align:center;padding-bottom:20px}
.expert-card img{width:100%;height:260px;object-fit:cover}
.expert-card h3{font-size:1.1rem;margin:16px 0 4px;color:#0D6E6E}
.expert-card .role{font-size:.9rem;color:#E8853D;margin-bottom:8px}
.expert-card p{font-size:.88rem;color:#666;padding:0 16px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center;margin-top:12px}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:.85rem}

/* ============ 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-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;color:#1A1A1A;transition:background .3s}
.faq-q:hover{background:#F0F9F9}
.faq-q::after{content:"+";font-size:1.4rem;color:#0D6E6E;transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;font-size:.95rem;color:#555;line-height:1.8}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}

/* ============ Reviews ============ */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.review-card .stars{color:#E8853D;font-size:1.1rem;margin-bottom:10px}
.review-card .review-text{font-size:.95rem;color:#444;margin-bottom:12px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.reviewer-avatar{width:40px;height:40px;border-radius:50%;background:#0D6E6E;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}
.reviewer-info .name{font-weight:600;font-size:.9rem}
.reviewer-info .date{font-size:.8rem;color:#999}

/* ============ Community Grid ============ */
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}
.community-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:transform .3s;text-align:center}
.community-card:hover{transform:translateY(-4px)}
.community-card img{width:100%;height:160px;object-fit:cover}
.community-card h4{padding:12px;font-size:.95rem;color:#0D6E6E}

/* ============ AI Section ============ */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:28px 24px;text-align:center;transition:background .3s}
.ai-card:hover{background:rgba(255,255,255,.15)}
.ai-card .ai-icon{font-size:2.5rem;margin-bottom:16px}
.ai-card h3{font-size:1.1rem;margin-bottom:10px}
.ai-card p{font-size:.9rem;color:rgba(255,255,255,.75)}

/* ============ Share Buttons ============ */
.share-bar{display:flex;gap:12px;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;font-size:.9rem;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:#1A2E2E;color:rgba(255,255,255,.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h4{color:#E8853D;margin-bottom:16px;font-size:1rem}
.footer-col p,.footer-col a{font-size:.9rem;color:rgba(255,255,255,.7);line-height:2}
.footer-col a:hover{color:#E8853D}
.footer-col img{border-radius:8px;margin-top:8px}
.footer-qr{display:flex;gap:16px}
.footer-qr div{text-align:center}
.footer-qr img{width:120px;height:120px;border-radius:8px}
.footer-qr span{display:block;font-size:.8rem;margin-top:6px;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.85rem;color:rgba(255,255,255,.5)}
.footer-bottom .update-time{margin-top:6px}

/* ============ Breadcrumb ============ */
.breadcrumb{padding:14px 0;font-size:.9rem;color:#888}
.breadcrumb a{color:#0D6E6E}
.breadcrumb span{margin:0 8px;color:#ccc}

/* ============ How-To Guide ============ */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px}
.howto-step{background:#fff;padding:24px;border-radius:12px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.step-num{width:48px;height:48px;border-radius:50%;background:#0D6E6E;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 16px}
.howto-step h4{color:#0D6E6E;margin-bottom:8px}

/* ============ Partner Logos ============ */
.partner-wall{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;align-items:center}
.partner-wall img{height:60px;opacity:.7;transition:opacity .3s;filter:grayscale(50%)}
.partner-wall img:hover{opacity:1;filter:grayscale(0)}

/* ============ Page Content ============ */
.page-content{padding:40px 0;min-height:60vh}
.page-content h1{font-size:2rem;color:#0D6E6E;margin-bottom:20px}
.page-content h2{font-size:1.5rem;color:#0D6E6E;margin:30px 0 16px}
.page-content p{margin-bottom:16px;font-size:1rem;color:#444}
.content-img{border-radius:12px;margin:20px 0;box-shadow:0 4px 16px rgba(0,0,0,.1)}

/* ============ Contact Info ============ */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.contact-card{background:#fff;padding:28px;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.contact-card h3{color:#0D6E6E;margin-bottom:12px;font-size:1.1rem}
.contact-card p{font-size:.95rem;color:#555;line-height:2}

/* ============ Interference Tags (hidden) ============ */
.dyrb_wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none}

/* ============ Responsive ============ */
@media(max-width:968px){
  .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}
  .hero-banner{height:380px}
  .hero-content h1{font-size:2rem}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:1fr}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
}
@media(max-width:600px){
  .hero-banner{height:300px}
  .hero-content h1{font-size:1.5rem}
  .hero-content p{font-size:1rem}
  .section{padding:40px 0}
  .footer-grid{grid-template-columns:1fr}
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .search-box{max-width:100%}
}

/* Lazy load placeholder */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

/* Print */
@media print{.site-header,.site-footer,.search-bar,.share-bar{display:none}}