/* ========================================
   免费看片 - 植物视频社区 全站样式
   kfrlrr.cn
   ======================================== */

/* Reset & Base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:#333;background:#f8faf5;line-height:1.8}
a{color:#2d8c3c;text-decoration:none;transition:color .3s}
a:hover{color:#1a6b28}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;color:#1a3a1a;line-height:1.4}
h1{font-size:2.2rem}
h2{font-size:1.8rem}
h3{font-size:1.4rem}
h4{font-size:1.2rem}
h5{font-size:1.1rem}
h6{font-size:1rem}
p{margin-bottom:1rem}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px;position:relative}
.section-title h2{display:inline-block;padding-bottom:10px;border-bottom:3px solid #2d8c3c}
.section-title p{color:#666;margin-top:10px;font-size:0.95rem}

/* Header */
.site-header{background:#fff;box-shadow:0 2px 10px 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}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:50px;width:auto}
.logo span{font-size:1.5rem;font-weight:800;color:#1a6b28}
.main-nav{display:flex;gap:5px}
.main-nav a{padding:8px 16px;border-radius:6px;font-weight:500;color:#333;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#e8f5e9;color:#1a6b28}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#333}

/* Search Bar */
.search-bar{background:#e8f5e9;padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;gap:0}
.search-form input{flex:1;padding:10px 18px;border:2px solid #2d8c3c;border-right:none;border-radius:25px 0 0 25px;font-size:0.95rem;outline:none;transition:border-color .3s}
.search-form input:focus{border-color:#1a6b28}
.search-form button{padding:10px 24px;background:#2d8c3c;color:#fff;border:2px solid #2d8c3c;border-radius:0 25px 25px 0;cursor:pointer;font-size:0.95rem;transition:background .3s}
.search-form button:hover{background:#1a6b28}

/* Banner */
.banner{position:relative;overflow:hidden;min-height:400px;display:flex;align-items:center;justify-content:center}
.banner img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}
.banner-overlay{position:relative;z-index:2;text-align:center;padding:60px 20px;background:rgba(0,0,0,.45);width:100%;min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.banner-overlay h1{color:#fff;font-size:2.8rem;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.banner-overlay p{color:#e8f5e9;font-size:1.15rem;max-width:700px;margin:0 auto 20px;text-shadow:1px 1px 4px rgba(0,0,0,.4)}
.banner-overlay .btn{display:inline-block;padding:12px 32px;background:#2d8c3c;color:#fff;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;border:2px solid transparent}
.banner-overlay .btn:hover{background:transparent;border-color:#fff;color:#fff}

/* Breadcrumb */
.breadcrumb{padding:12px 0;background:#f0f7f0;font-size:0.9rem}
.breadcrumb a{color:#2d8c3c}
.breadcrumb span{color:#999;margin:0 8px}

/* 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 15px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#000}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(45,140,60,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:3}
.video-play-btn::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card:hover .video-play-btn{opacity: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:0.8rem;z-index:3}
.video-info{padding:15px}
.video-info h3{font-size:1rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:15px;color:#999;font-size:0.85rem}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.video-tags span{background:#e8f5e9;color:#2d8c3c;padding:2px 10px;border-radius:12px;font-size:0.78rem}

/* Module Cards */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.module-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s;border:1px solid #e8f5e9}
.module-card:hover{border-color:#2d8c3c;box-shadow:0 8px 25px rgba(45,140,60,.12)}
.module-card .icon{font-size:2.5rem;margin-bottom:15px}
.module-card h3{margin-bottom:10px;color:#1a3a1a}
.module-card p{color:#666;font-size:0.9rem}

/* 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 15px rgba(0,0,0,.08);transition:all .3s;text-align:center}
.expert-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.expert-card img{width:160px;height:160px;border-radius:50%;object-fit:cover;margin:25px auto 15px;border:4px solid #e8f5e9}
.expert-card h3{margin-bottom:5px}
.expert-card .title{color:#2d8c3c;font-size:0.9rem;margin-bottom:10px}
.expert-card p{padding:0 20px;color:#666;font-size:0.88rem;margin-bottom:15px}
.expert-card .btn-group{display:flex;gap:10px;justify-content:center;padding:0 20px 25px}
.expert-card .btn-sm{padding:6px 16px;border-radius:20px;font-size:0.85rem;border:1px solid #2d8c3c;color:#2d8c3c;transition:all .3s}
.expert-card .btn-sm:hover{background:#2d8c3c;color:#fff}

/* 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,.05);overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#1a3a1a;transition:background .3s}
.faq-question:hover{background:#f0f7f0}
.faq-question::after{content:"+";font-size:1.4rem;color:#2d8c3c;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:#555}
.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 15px rgba(0,0,0,.06);border-left:4px solid #2d8c3c}
.review-card .stars{color:#f5a623;font-size:1.1rem;margin-bottom:10px}
.review-card blockquote{color:#555;font-style:italic;margin-bottom:12px;font-size:0.95rem}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer-name{font-weight:600;color:#1a3a1a}
.review-card .reviewer-date{color:#999;font-size:0.85rem}

/* Partner Logos */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall .partner-item{background:#fff;padding:20px 30px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);font-weight:700;color:#555;font-size:1.1rem;transition:all .3s}
.partner-wall .partner-item:hover{box-shadow:0 4px 20px rgba(45,140,60,.15);color:#2d8c3c}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;margin-top:30px}
.howto-step{text-align:center;padding:30px 20px;background:#fff;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.howto-step .step-num{display:inline-flex;width:50px;height:50px;border-radius:50%;background:#2d8c3c;color:#fff;align-items:center;justify-content:center;font-size:1.4rem;font-weight:700;margin-bottom:15px}
.howto-step h4{margin-bottom:8px}
.howto-step p{color:#666;font-size:0.9rem}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.contact-card .icon{font-size:2rem;color:#2d8c3c;margin-bottom:15px}
.contact-card h4{margin-bottom:8px}
.contact-card p{color:#666;font-size:0.9rem}

/* Share Buttons */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:25px;color:#fff;font-size:0.9rem;transition:opacity .3s}
.share-btn:hover{opacity:.85;color:#fff}
.share-btn.wechat{background:#07c160}
.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#000}
.share-btn.bilibili{background:#00a1d6}

/* Footer */
.site-footer{background:#1a3a1a;color:#ccc;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:30px;padding-bottom:30px}
.footer-col h4{color:#fff;margin-bottom:15px;font-size:1.1rem}
.footer-col p,.footer-col a{color:#aaa;font-size:0.9rem;line-height:2}
.footer-col a:hover{color:#2d8c3c}
.footer-col img{max-width:120px;border-radius:8px;margin-top:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:0.85rem;color:#888}
.footer-bottom a{color:#2d8c3c}

/* MCP Frontend Mock */
.mcp-widget{background:#f0f7f0;border:1px solid #d4e8d4;border-radius:10px;padding:20px;margin:20px 0;text-align:center}
.mcp-widget h4{color:#1a6b28;margin-bottom:10px}
.mcp-widget .mcp-status{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:#fff;border-radius:20px;font-size:0.9rem}
.mcp-widget .mcp-dot{width:10px;height:10px;border-radius:50%;background:#2d8c3c;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;width:100%;flex-direction:column;gap:0;padding-top:10px}
  .main-nav.active{display:flex}
  .main-nav a{padding:12px 16px;border-bottom:1px solid #f0f0f0}
  .mobile-menu-btn{display:block}
  .banner-overlay h1{font-size:1.8rem}
  .banner-overlay p{font-size:0.95rem}
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  h1{font-size:1.6rem}
  h2{font-size:1.4rem}
}
@media(max-width:480px){
  .banner{min-height:300px}
  .banner-overlay{min-height:300px;padding:40px 15px}
  .banner-overlay h1{font-size:1.5rem}
  .search-form input{padding:8px 14px}
  .search-form button{padding:8px 16px}
}

/* Lazy Load Placeholder */
img[data-src]{background:#e8f5e9;min-height:200px}

/* Interference Tags - Hidden */
.itag{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}