/* =============================================
   17c一起草 - 动物写真与视频社区 外部样式表
   品牌色: #1A6B4F(森林绿) #F4A623(琥珀橙)
   yiLi999.cn
   ============================================= */

/* Reset & Base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#1C2833;background:#FAFAF5;line-height:1.8;overflow-x:hidden}
a{color:#1A6B4F;text-decoration:none;transition:color .3s}
a:hover{color:#F4A623}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.4;color:#1C2833}

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

/* Header */
.site-header{background:#fff;box-shadow:0 2px 12px rgba(26,107,79,.08);position:sticky;top:0;z-index:1000;border-bottom:3px solid #1A6B4F}
.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.nav-logo{height:48px;width:auto}
.logo-wrap img.nav-icon{height:32px;width:32px;border-radius:4px}
.logo-wrap .brand-name{font-size:1.5rem;font-weight:800;color:#1A6B4F;letter-spacing:2px}
.logo-wrap .brand-sub{font-size:.75rem;color:#666;display:block;margin-top:-4px}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:12px 14px;font-size:.9rem;font-weight:600;color:#1C2833;transition:all .3s;position:relative;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#1A6B4F;background:rgba(26,107,79,.05)}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:3px;background:#F4A623;transition:all .3s;transform:translateX(-50%)}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.mobile-toggle{display:none;font-size:1.5rem;cursor:pointer;color:#1A6B4F;background:none;border:none}

/* Search Bar */
.search-bar{background:linear-gradient(135deg,#E8F0E8 0%,#f0f7f0 100%);padding:16px 0;border-bottom:1px solid #d4e8d4}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%;border-radius:30px;overflow:hidden;box-shadow:0 4px 16px rgba(26,107,79,.12)}
.search-box input{flex:1;padding:12px 24px;border:2px solid #1A6B4F;border-right:none;border-radius:30px 0 0 30px;font-size:1rem;outline:none;background:#fff;transition:border-color .3s}
.search-box input:focus{border-color:#F4A623}
.search-box button{padding:12px 28px;background:#1A6B4F;color:#fff;border:none;cursor:pointer;font-size:1rem;font-weight:600;transition:background .3s;border-radius:0 30px 30px 0}
.search-box button:hover{background:#F4A623}

/* Banner */
.banner-section{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;justify-content:center}
.banner-section>img{width:100%;height:100%;object-fit:cover;position:absolute;top:0;left:0;z-index:1}
.banner-overlay{position:relative;z-index:2;text-align:center;padding:60px 20px;background:rgba(26,107,79,.55);width:100%;min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.banner-overlay h1{font-size:2.8rem;color:#fff;margin-bottom:12px;text-shadow:2px 2px 8px rgba(0,0,0,.3)}
.banner-overlay .banner-desc{font-size:1.15rem;color:#E8F0E8;max-width:700px;margin:0 auto 20px;line-height:1.9}
.banner-overlay .banner-tags{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.banner-overlay .banner-tags span{background:rgba(244,166,35,.85);color:#fff;padding:6px 18px;border-radius:20px;font-size:.85rem;font-weight:600}

/* Section Common */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#1A6B4F;margin-bottom:8px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:#F4A623;margin:10px auto 0;border-radius:2px}
.section-title p{color:#666;font-size:1rem;margin-top:10px}

/* Video Cards Grid */
.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 20px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(26,107,79,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img,.video-thumb .video-poster{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .5s;z-index:2}
.video-thumb video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1}
.video-card:hover .video-thumb img,.video-card:hover .video-thumb .video-poster{transform:scale(1.08)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);width:60px;height:60px;background:rgba(26,107,79,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s,transform .3s;z-index:3}
.video-play-btn::after{content:'';border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card:hover .video-play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:600;z-index:3}
.video-info{padding:16px}
.video-info h3{font-size:1.05rem;margin-bottom:6px;color:#1C2833;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:16px;color:#999;font-size:.8rem;margin-top:8px}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;background:#E8F0E8;color:#1A6B4F;padding:2px 10px;border-radius:10px;font-size:.75rem;margin-top:6px;margin-right:4px;font-weight:600}
.video-date{display:block;color:#bbb;font-size:.75rem;margin-top:6px}

/* Entertainment Tabs */
.ent-tabs{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.ent-tab{background:#E8F0E8;color:#1A6B4F;padding:8px 20px;border-radius:20px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s}
.ent-tab:hover,.ent-tab.active{background:#1A6B4F;color:#fff}

/* Feature Cards */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.feature-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:transform .3s;border-top:4px solid #1A6B4F}
.feature-card:hover{transform:translateY(-4px)}
.feature-card .icon{font-size:2.5rem;margin-bottom:16px}
.feature-card h4{font-size:1.1rem;color:#1A6B4F;margin-bottom:10px}
.feature-card p{color:#666;font-size:.9rem;line-height:1.7}

/* Expert Section */
.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 20px rgba(0,0,0,.06);text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100%;height:200px;object-fit:cover}
.expert-card .expert-info{padding:20px}
.expert-card h4{color:#1A6B4F;font-size:1.1rem;margin-bottom:4px}
.expert-card .role{color:#F4A623;font-size:.85rem;font-weight:600;margin-bottom:10px}
.expert-card .expert-certs{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:10px}
.cert-badge{display:inline-block;background:linear-gradient(135deg,#f0f7f0,#E8F0E8);color:#1A6B4F;padding:3px 10px;border-radius:12px;font-size:.7rem;font-weight:600;border:1px solid rgba(26,107,79,.2)}
.expert-card p{color:#666;font-size:.85rem;line-height:1.7}
.expert-card .expert-btns{display:flex;gap:10px;justify-content:center;margin-top:14px}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600;transition:all .3s}
.btn-primary{background:#1A6B4F;color:#fff!important}
.btn-primary:hover{background:#F4A623}
.btn-outline{border:2px solid #1A6B4F;color:#1A6B4F!important}
.btn-outline:hover{background:#1A6B4F;color:#fff!important}

/* Awards Section */
.awards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.award-card{background:#fff;border-radius:12px;padding:28px 24px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);border-bottom:4px solid #F4A623;transition:transform .3s}
.award-card:hover{transform:translateY(-4px)}
.award-card .award-icon{font-size:2.5rem;margin-bottom:12px}
.award-card h5{color:#1A6B4F;font-size:1.05rem;margin-bottom:10px}
.award-card p{color:#666;font-size:.85rem;line-height:1.7}

/* 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 20px rgba(0,0,0,.05);border-left:4px solid #F4A623}
.review-card .stars{color:#F4A623;font-size:1.1rem;margin-bottom:10px}
.review-card blockquote{color:#555;font-size:.95rem;line-height:1.8;font-style:italic;margin-bottom:12px}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer-avatar{width:40px;height:40px;border-radius:50%;background:#E8F0E8;display:flex;align-items:center;justify-content:center;color:#1A6B4F;font-weight:700;font-size:1rem}
.review-card .reviewer-name{font-weight:600;color:#1C2833;font-size:.9rem}
.review-card .reviewer-date{color:#999;font-size:.75rem}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 12px rgba(0,0,0,.04);overflow:hidden}
.faq-question{padding:18px 24px;font-weight:700;color:#1C2833;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:#E8F0E8}
.faq-question .arrow{color:#1A6B4F;font-size:1.2rem;transition:transform .3s}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#555;line-height:1.8;font-size:.95rem}
.faq-item.active .faq-answer{max-height:300px;padding:0 24px 18px}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.contact-card .icon{font-size:2rem;color:#1A6B4F;margin-bottom:12px}
.contact-card h4{color:#1A6B4F;margin-bottom:8px;font-size:1rem}
.contact-card p{color:#666;font-size:.9rem}
.qr-grid{display:flex;gap:30px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.qr-item{text-align:center}
.qr-item img{width:160px;height:160px;border-radius:10px;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.qr-item p{margin-top:8px;font-weight:600;color:#1C2833;font-size:.9rem}

/* 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 20px;border-radius:20px;font-size:.85rem;font-weight:600;color:#fff;transition:transform .3s,opacity .3s;cursor:pointer}
.share-btn:hover{transform:scale(1.05);opacity:.9;color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* Partner Logo Wall */
.partner-wall{display:flex;gap:24px;flex-wrap:wrap;justify-content:center;align-items:center}
.partner-wall .partner-item{background:#fff;border-radius:10px;padding:16px 24px;box-shadow:0 2px 12px rgba(0,0,0,.04);font-weight:700;color:#1A6B4F;font-size:1rem;transition:transform .3s}
.partner-wall .partner-item:hover{transform:scale(1.05)}

/* Footer */
.site-footer{background:#1C2833;color:#ccc;padding:40px 0 20px}
.footer-inner{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:30px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#F4A623;font-size:1rem;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:3px;background:#1A6B4F;border-radius:2px}
.footer-col p,.footer-col a{color:#aaa;font-size:.85rem;line-height:2}
.footer-col a:hover{color:#F4A623}
.footer-col .footer-logo{height:40px;margin-bottom:12px}
.footer-bottom{text-align:center;padding:20px;border-top:1px solid rgba(255,255,255,.1);margin-top:30px;font-size:.8rem;color:#888}
.footer-bottom a{color:#F4A623}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#999}
.breadcrumb a{color:#1A6B4F}
.breadcrumb span{margin:0 6px;color:#ccc}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin-top:20px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.05);position:relative}
.howto-step .step-num{width:40px;height:40px;background:#1A6B4F;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;margin:0 auto 14px}
.howto-step h4{color:#1A6B4F;margin-bottom:8px;font-size:1rem}
.howto-step p{color:#666;font-size:.85rem;line-height:1.7}

/* AI Section */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:24px}
.ai-card{background:linear-gradient(135deg,#1A6B4F 0%,#2d8f6e 100%);border-radius:12px;padding:30px;color:#fff;box-shadow:0 4px 20px rgba(26,107,79,.2);transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card h4{color:#F4A623;font-size:1.15rem;margin-bottom:10px}
.ai-card p{color:rgba(255,255,255,.9);font-size:.9rem;line-height:1.8}

/* Community Tags */
.community-tags{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.community-tag{background:#E8F0E8;color:#1A6B4F;padding:8px 20px;border-radius:20px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s}
.community-tag:hover,.community-tag.active{background:#1A6B4F;color:#fff}

/* Lazy Load */
.lazy{opacity:0;transition:opacity .6s}
.lazy.loaded{opacity:1}

/* Responsive */
@media(max-width:1024px){
  .main-nav a{padding:12px 10px;font-size:.82rem}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;flex-direction:column;width:100%;background:#fff;position:absolute;top:100%;left:0;box-shadow:0 4px 12px rgba(0,0,0,.1)}
  .main-nav.show{display:flex}
  .main-nav a{padding:14px 20px;border-bottom:1px solid #f0f0f0;font-size:.95rem}
  .mobile-toggle{display:block}
  .banner-overlay h1{font-size:1.8rem}
  .banner-overlay .banner-desc{font-size:.95rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .feature-grid{grid-template-columns:1fr 1fr}
  .expert-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .awards-grid{grid-template-columns:1fr 1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
}
@media(max-width:480px){
  .search-box{flex-direction:column;border-radius:12px}
  .search-box input{border-radius:12px 12px 0 0;border-right:2px solid #1A6B4F;border-bottom:none}
  .search-box button{border-radius:0 0 12px 12px}
  .banner-overlay h1{font-size:1.4rem}
  .banner-section{min-height:320px}
  .banner-overlay{min-height:320px;padding:40px 16px}
  .video-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .awards-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}

/* Interference tags - hidden but present */
.dg-noise{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}