/* ========================================
   国产精品 - 动物写真与视频社区 主样式表
   品牌色: #1a6b2a (深绿) #2d8c3c (主绿) #4caf50 (亮绿)
   辅助色: #f5f5dc (米白) #333 (深灰) #fff (白)
   ======================================== */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#333;background:#fafaf5;line-height:1.7}
a{color:#2d8c3c;text-decoration:none;transition:color .3s}
a:hover{color:#1a6b2a}
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}

/* Utility */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.text-center{text-align:center}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.clearfix::after{content:"";display:table;clear:both}

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

/* ========== Header & Navigation ========== */
.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{width:42px;height:42px;border-radius:8px}
.site-logo span{font-size:1.4rem;font-weight:800;color:#1a6b2a;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{display:block;padding:12px 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:#2d8c3c;border-bottom-color:#2d8c3c}
.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#333;padding:8px}

/* Search Bar */
.search-bar{background:#f0f7f0;padding:12px 0;border-bottom:1px solid #e0e8e0}
.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 #2d8c3c;border-right:none;border-radius:25px 0 0 25px;font-size:.95rem;outline:none;background:#fff;transition:border-color .3s}
.search-box input:focus{border-color:#1a6b2a}
.search-box button{padding:10px 24px;background:#2d8c3c;color:#fff;border:2px solid #2d8c3c;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;font-weight:600;transition:background .3s}
.search-box button:hover{background:#1a6b2a}

/* ========== Banner / Hero ========== */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#1a1a1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.85}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:linear-gradient(180deg,rgba(0,0,0,.2) 0%,rgba(0,0,0,.55) 100%);padding:20px}
.hero-overlay h1{font-size:2.8rem;color:#fff;text-shadow:2px 2px 8px rgba(0,0,0,.5);margin-bottom:12px}
.hero-overlay p{font-size:1.15rem;color:#e8e8e8;max-width:700px;text-shadow:1px 1px 4px rgba(0,0,0,.4)}
.hero-overlay .hero-tags{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.hero-overlay .hero-tags span{background:rgba(45,140,60,.85);color:#fff;padding:6px 16px;border-radius:20px;font-size:.85rem}

/* ========== Section Common ========== */
.section{padding:50px 0}
.section-alt{background:#f0f7f0}
.section-dark{background:#1a2e1a;color:#e8e8e8}
.section-dark h2,.section-dark h3{color:#fff}
.section-title{font-size:1.9rem;text-align:center;margin-bottom:10px;color:#1a6b2a;position:relative}
.section-title::after{content:"";display:block;width:60px;height:3px;background:#2d8c3c;margin:10px auto 0}
.section-desc{text-align:center;color:#666;margin-bottom:35px;font-size:1rem;max-width:700px;margin-left:auto;margin-right:auto}

/* ========== Video Cards ========== */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.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%;background:#e0e0e0;overflow:hidden}
.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(1.05)}
.video-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 .video-play-btn{opacity:1}
.video-play-btn span{width:56px;height:56px;background:rgba(45,140,60,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}
.video-play-btn span::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-info{padding:14px 16px}
.video-info h3,.video-info h4{font-size:.95rem;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:.8rem;color:#888}
.video-meta span{display:flex;align-items:center;gap:3px}
.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}

/* ========== Category Tabs ========== */
.cat-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:30px;flex-wrap:wrap}
.cat-tabs span{padding:8px 20px;border-radius:20px;background:#e8f5e9;color:#2d8c3c;cursor:pointer;font-size:.9rem;font-weight:500;transition:all .3s}
.cat-tabs span:hover,.cat-tabs span.active{background:#2d8c3c;color:#fff}

/* ========== Expert Cards ========== */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);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:30px 20px;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 15px;border:3px solid #2d8c3c}
.expert-card h4{font-size:1.05rem;margin-bottom:4px}
.expert-card .expert-role{color:#2d8c3c;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#666;margin-bottom:15px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:6px 14px;border-radius:20px;font-size:.8rem;font-weight:500}
.btn-primary{background:#2d8c3c;color:#fff !important;border:1px solid #2d8c3c}
.btn-primary:hover{background:#1a6b2a}
.btn-outline{background:transparent;color:#2d8c3c !important;border:1px solid #2d8c3c}
.btn-outline:hover{background:#2d8c3c;color:#fff !important}

/* ========== AI Studio Section ========== */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card .ai-icon{width:64px;height:64px;background:linear-gradient(135deg,#2d8c3c,#4caf50);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:1.8rem;color:#fff}
.ai-card h4{font-size:1.1rem;margin-bottom:8px}
.ai-card p{font-size:.9rem;color:#666}

/* ========== FAQ Section ========== */
.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,.06);overflow:hidden}
.faq-question{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#f0f7f0}
.faq-question::after{content:"+";font-size:1.4rem;color:#2d8c3c;transition:transform .3s}
.faq-item.open .faq-question::after{transform:rotate(45deg)}
.faq-answer{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-answer{max-height:300px;padding:0 24px 18px}

/* ========== 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,.08)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:#e8f5e9;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#2d8c3c;font-weight:700}
.review-name{font-weight:600;font-size:.95rem}
.review-date{font-size:.8rem;color:#999}
.review-stars{color:#f5a623;margin-bottom:8px;font-size:.9rem}
.review-text{font-size:.9rem;color:#555;line-height:1.7}

/* ========== Community Section ========== */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s}
.community-card:hover{transform:translateY(-4px)}
.community-card img{width:100%;height:180px;object-fit:cover}
.community-card .card-body{padding:16px}
.community-card h4{font-size:1rem;margin-bottom:6px}
.community-card p{font-size:.85rem;color:#666}
.community-card .card-tags{margin-top:10px;display:flex;gap:6px;flex-wrap:wrap}
.community-card .card-tags span{background:#e8f5e9;color:#2d8c3c;padding:3px 10px;border-radius:12px;font-size:.75rem}

/* ========== Contact Section ========== */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.contact-info{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.contact-info h3{font-size:1.3rem;margin-bottom:20px;color:#1a6b2a}
.contact-item{display:flex;gap:12px;margin-bottom:16px;align-items:flex-start}
.contact-item .ci-icon{width:40px;height:40px;background:#e8f5e9;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#2d8c3c;font-weight:700;flex-shrink:0;font-size:.85rem}
.contact-item .ci-text{font-size:.9rem}
.contact-item .ci-text strong{display:block;margin-bottom:2px}
.qrcode-wrap{display:flex;gap:20px;margin-top:20px}
.qrcode-wrap .qr-item{text-align:center}
.qrcode-wrap .qr-item img{width:140px;height:140px;border-radius:8px;border:1px solid #e0e0e0}
.qrcode-wrap .qr-item p{font-size:.8rem;color:#666;margin-top:6px}

/* ========== Contact Form ========== */
.contact-form{max-width:800px;margin:0 auto}
.contact-form .form-row{display:flex;gap:20px;margin-bottom:16px}
.contact-form .form-group{flex:1}
.contact-form label{display:block;font-size:.9rem;font-weight:600;color:#333;margin-bottom:6px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:10px 14px;border:2px solid #e0e8e0;border-radius:8px;font-size:.9rem;font-family:inherit;outline:none;transition:border-color .3s;background:#fff}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:#2d8c3c}
.contact-form textarea{resize:vertical;min-height:100px}
.contact-form select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}

/* ========== How-To Guide ========== */
.howto-steps{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.howto-step{flex:1;min-width:220px;max-width:280px;background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.08);position:relative}
.howto-step .step-num{width:40px;height:40px;background:#2d8c3c;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 12px;font-size:1.1rem}
.howto-step h4{font-size:1rem;margin-bottom:8px}
.howto-step p{font-size:.85rem;color:#666}

/* ========== Share Buttons ========== */
.share-bar{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.share-btn{padding:8px 18px;border-radius:20px;font-size:.85rem;font-weight:500;color:#fff;cursor:pointer;transition:opacity .3s;border:none}
.share-btn:hover{opacity:.85}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* ========== Trust Badges ========== */
.trust-badges{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.trust-badge{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #e0e8e0;border-radius:8px;padding:8px 16px;font-size:.85rem;color:#555}
.trust-badge .badge-icon{width:28px;height:28px;background:#e8f5e9;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#2d8c3c;font-weight:700;font-size:.8rem}

/* ========== Footer ========== */
.site-footer{background:#1a2e1a;color:#ccc;padding:40px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;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:2px;background:#2d8c3c}
.footer-col p,.footer-col a{font-size:.85rem;color:#aaa;display:block;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#4caf50}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{width:36px;height:36px;border-radius:6px}
.footer-logo span{font-size:1.2rem;font-weight:700;color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;text-align:center;font-size:.8rem;color:#888}
.footer-bottom a{color:#4caf50}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#2d8c3c}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ========== Inner Page ========== */
.page-header{background:linear-gradient(135deg,#1a6b2a,#2d8c3c);padding:40px 0;text-align:center;color:#fff}
.page-header h1{font-size:2.2rem;color:#fff;margin-bottom:8px}
.page-header p{font-size:1rem;opacity:.9}
.content-area{padding:40px 0}
.content-area article{background:#fff;border-radius:12px;padding:36px;box-shadow:0 4px 16px rgba(0,0,0,.08);margin-bottom:24px}
.content-area article h2{font-size:1.5rem;color:#1a6b2a;margin-bottom:16px}
.content-area article h3{font-size:1.2rem;color:#333;margin:20px 0 10px}
.content-area article p{margin-bottom:14px;font-size:.95rem;line-height:1.8;color:#444}
.content-area article img{border-radius:8px;margin:16px 0;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.sidebar{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.sidebar h3{font-size:1.1rem;color:#1a6b2a;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #e8f5e9}
.sidebar ul li{margin-bottom:10px}
.sidebar ul li a{font-size:.9rem;color:#555;display:block;padding:6px 0;border-bottom:1px solid #f5f5f5;transition:color .3s}
.sidebar ul li a:hover{color:#2d8c3c}
.two-col{display:grid;grid-template-columns:1fr 300px;gap:30px}

/* ========== Partner Logos ========== */
.partner-wall{display:flex;gap:30px;justify-content:center;align-items:center;flex-wrap:wrap;padding:20px 0}
.partner-wall .partner-item{background:#fff;border-radius:10px;padding:16px 24px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-weight:600;color:#555;font-size:.95rem}

/* ========== Lazy Load Placeholder ========== */
.lazy-img{background:#e8e8e8;min-height:200px;position:relative}
.lazy-img::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#e8e8e8 25%,#f5f5f5 50%,#e8e8e8 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ========== MCP Frontend (Decorative) ========== */
.mcp-widget{background:#f8faf8;border:1px solid #e0e8e0;border-radius:10px;padding:20px;margin-top:20px}
.mcp-widget h4{font-size:.95rem;color:#1a6b2a;margin-bottom:10px}
.mcp-widget .mcp-status{display:flex;align-items:center;gap:8px;font-size:.85rem;color:#666}
.mcp-widget .mcp-dot{width:8px;height:8px;border-radius:50%;background:#4caf50;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ========== Back to Top ========== */
.back-to-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:#2d8c3c;color:#fff;border:none;border-radius:50%;cursor:pointer;font-size:1.2rem;display:none;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.2);z-index:999;transition:opacity .3s,background .3s}
.back-to-top:hover{background:#1a6b2a}
.back-to-top.show{display:flex}

/* ========== Data Stats Bar ========== */
.stats-bar{display:flex;justify-content:center;gap:40px;padding:30px 0;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-item .stat-num{font-size:2rem;font-weight:800;color:#2d8c3c;display:block}
.stat-item .stat-label{font-size:.85rem;color:#666;margin-top:4px}

/* ========== Responsive ========== */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .ai-features{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;box-shadow:0 8px 20px rgba(0,0,0,.1);padding:10px 0}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 24px;border-bottom:1px solid #f0f0f0}
  .nav-toggle{display:block}
  .hero-banner{height:360px}
  .hero-overlay h1{font-size:1.8rem}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .section-title{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{flex-direction:column;align-items:center}
  .contact-form .form-row{flex-direction:column;gap:12px}
  .stats-bar{gap:20px}
  .stat-item .stat-num{font-size:1.5rem}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .header-inner{padding:8px 12px}
  .site-logo span{font-size:1.1rem}
  .hero-banner{height:280px}
  .hero-overlay h1{font-size:1.4rem}
  .section{padding:30px 0}
  .back-to-top{bottom:16px;right:16px;width:38px;height:38px}
}