/* 91 植物视频社区 - 全站样式表 */
/* Reset & Base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:#e0e0e0;background:#0a0f0a;line-height:1.8;overflow-x:hidden}
a{color:#4caf50;text-decoration:none;transition:color .3s}
a:hover{color:#81c784}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{color:#a5d6a7;line-height:1.4;font-weight:700}
h1{font-size:2.2rem}
h2{font-size:1.8rem}
h3{font-size:1.4rem}
h4{font-size:1.2rem}
h5{font-size:1.05rem}
h6{font-size:0.95rem}
p{margin-bottom:1rem}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.section-title{text-align:center;margin-bottom:30px;position:relative;padding-bottom:15px}
.section-title::after{content:"";display:block;width:80px;height:3px;background:linear-gradient(90deg,#2e7d32,#81c784);margin:10px auto 0;border-radius:2px}

/* Header & Nav */
.site-header{background:rgba(10,15,10,0.95);position:sticky;top:0;z-index:1000;border-bottom:1px solid #1b5e20;backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:8px 15px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:50px;width:auto}
.logo-wrap .brand-name{font-size:1.5rem;font-weight:800;color:#4caf50;letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:12px 16px;color:#c8e6c9;font-size:0.95rem;font-weight:500;transition:all .3s;border-bottom:2px solid transparent;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#4caf50;border-bottom-color:#4caf50;background:rgba(76,175,80,0.08)}
.mobile-menu-btn{display:none;background:none;border:none;color:#4caf50;font-size:1.5rem;cursor:pointer}

/* Search Bar */
.search-bar{background:#111;padding:12px 0;border-bottom:1px solid #1b3a1b}
.search-bar .container{display:flex;justify-content:center}
.search-input-wrap{display:flex;max-width:600px;width:100%;border-radius:25px;overflow:hidden;border:1px solid #2e7d32}
.search-input-wrap input{flex:1;padding:10px 20px;background:#0d1a0d;border:none;color:#e0e0e0;font-size:0.95rem;outline:none}
.search-input-wrap input::placeholder{color:#666}
.search-input-wrap button{padding:10px 25px;background:linear-gradient(135deg,#2e7d32,#4caf50);border:none;color:#fff;cursor:pointer;font-size:0.95rem;font-weight:600;transition:opacity .3s}
.search-input-wrap button:hover{opacity:0.85}

/* Banner */
.banner-section{position:relative;min-height:500px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#0a0f0a}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(0.6)}
.banner-content{position:relative;z-index:2;text-align:center;padding:60px 20px;max-width:800px}
.banner-content h1{font-size:2.8rem;color:#fff;text-shadow:0 2px 20px rgba(0,0,0,0.8);margin-bottom:15px}
.banner-content .subtitle{font-size:1.2rem;color:#c8e6c9;text-shadow:0 1px 10px rgba(0,0,0,0.6);margin-bottom:25px}
.banner-content .btn-primary{display:inline-block;padding:12px 35px;background:linear-gradient(135deg,#2e7d32,#4caf50);color:#fff;border-radius:25px;font-weight:600;font-size:1rem;transition:transform .3s,box-shadow .3s}
.banner-content .btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(76,175,80,0.4)}

/* Video Card */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-top:20px}
.video-card{background:#111;border-radius:12px;overflow:hidden;transition:transform .3s,box-shadow .3s;border:1px solid #1b3a1b;position:relative;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(76,175,80,0.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#000}
.video-thumb img,.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img,.video-card:hover .video-thumb video{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(76,175,80,0.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s,transform .3s;cursor:pointer;z-index:5}
.play-btn::after{content:"";display:block;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}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.1);background:rgba(76,175,80,1)}
.video-info{padding:15px}
.video-info h4{font-size:1rem;margin-bottom:8px;color:#c8e6c9;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:0.8rem;color:#777;flex-wrap:wrap}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:rgba(76,175,80,0.15);color:#81c784;border-radius:12px;font-size:0.75rem;margin-top:8px}

/* Video Player Overlay */
.video-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.92);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.video-overlay.active{opacity:1;visibility:visible}
.video-overlay-inner{position:relative;width:90%;max-width:800px;background:#111;border-radius:16px;overflow:hidden;border:1px solid #2e7d32}
.video-overlay-close{position:absolute;top:15px;right:15px;width:36px;height:36px;background:rgba(0,0,0,0.7);border:1px solid #4caf50;border-radius:50%;color:#4caf50;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:all .3s}
.video-overlay-close:hover{background:#4caf50;color:#fff}
.video-overlay-player{width:100%;aspect-ratio:16/9;background:#000;display:flex;align-items:center;justify-content:center;position:relative}
.video-overlay-player video{width:100%;height:100%;object-fit:contain}
.video-overlay-loading{color:#4caf50;font-size:1rem;text-align:center;padding:20px}
.video-overlay-title{padding:15px 20px;color:#c8e6c9;font-size:1rem;font-weight:600;border-top:1px solid #1b3a1b}

/* Section Styles */
.section{padding:60px 0}
.section-alt{background:#0d120d}
.section-dark{background:#080c08}

/* Module Cards */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.module-card{background:linear-gradient(145deg,#111,#0d1a0d);border:1px solid #1b3a1b;border-radius:12px;padding:25px;transition:all .3s;position:relative;overflow:hidden}
.module-card:hover{border-color:#4caf50;box-shadow:0 5px 20px rgba(76,175,80,0.1)}
.module-card h4{color:#a5d6a7;margin-bottom:10px}
.module-card p{color:#999;font-size:0.9rem}
.module-icon{font-size:2rem;margin-bottom:15px;display:block}

/* Expert Section */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.expert-card{background:#111;border:1px solid #1b3a1b;border-radius:12px;overflow:hidden;transition:all .3s}
.expert-card:hover{border-color:#4caf50;transform:translateY(-3px)}
.expert-img{height:220px;overflow:hidden}
.expert-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.expert-card:hover .expert-img img{transform:scale(1.05)}
.expert-info{padding:20px}
.expert-info h4{color:#a5d6a7;margin-bottom:5px}
.expert-info .role{color:#4caf50;font-size:0.85rem;margin-bottom:10px}
.expert-info p{color:#999;font-size:0.88rem}
.expert-links{display:flex;gap:10px;margin-top:12px}
.expert-links a{padding:6px 15px;background:rgba(76,175,80,0.15);color:#81c784;border-radius:20px;font-size:0.8rem;transition:all .3s}
.expert-links a:hover{background:#4caf50;color:#fff}

/* FAQ Section */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #1b3a1b;border-radius:10px;margin-bottom:12px;overflow:hidden;background:#111}
.faq-question{padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#c8e6c9;transition:background .3s}
.faq-question:hover{background:rgba(76,175,80,0.05)}
.faq-question .arrow{transition:transform .3s;color:#4caf50;font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 20px}
.faq-item.active .faq-answer{max-height:300px;padding:0 20px 18px}
.faq-answer p{color:#999;font-size:0.92rem}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:#111;border:1px solid #1b3a1b;border-radius:12px;padding:25px;position:relative}
.review-card::before{content:"\201C";font-size:3rem;color:#2e7d32;position:absolute;top:10px;left:15px;line-height:1}
.review-text{color:#bbb;font-size:0.92rem;margin-bottom:15px;padding-top:20px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#2e7d32,#4caf50);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.9rem}
.review-name{color:#a5d6a7;font-weight:600;font-size:0.9rem}
.review-date{color:#666;font-size:0.78rem}
.review-stars{color:#ffc107;font-size:0.85rem;margin-bottom:8px}

/* Partner Logos */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center;padding:20px 0}
.partner-logo{width:120px;height:60px;background:#1a1a1a;border:1px solid #1b3a1b;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#666;font-size:0.8rem;transition:all .3s}
.partner-logo:hover{border-color:#4caf50;color:#4caf50}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px}
.contact-card{background:#111;border:1px solid #1b3a1b;border-radius:12px;padding:25px;text-align:center}
.contact-card h5{color:#a5d6a7;margin-bottom:10px}
.contact-card p{color:#999;font-size:0.9rem}
.contact-card img{max-width:150px;margin:10px auto}

/* Share Buttons */
.share-bar{display:flex;justify-content:center;gap:15px;padding:20px 0;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:20px;font-size:0.85rem;font-weight:500;transition:all .3s;border:1px solid}
.share-btn.wechat{color:#07c160;border-color:#07c160}
.share-btn.weibo{color:#e6162d;border-color:#e6162d}
.share-btn.douyin{color:#fe2c55;border-color:#fe2c55}
.share-btn.bilibili{color:#00a1d6;border-color:#00a1d6}
.share-btn:hover{color:#fff}
.share-btn.wechat:hover{background:#07c160}
.share-btn.weibo:hover{background:#e6162d}
.share-btn.douyin:hover{background:#fe2c55}
.share-btn.bilibili:hover{background:#00a1d6}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin-top:20px}
.howto-step{background:#111;border:1px solid #1b3a1b;border-radius:12px;padding:25px;text-align:center;position:relative}
.step-number{width:40px;height:40px;background:linear-gradient(135deg,#2e7d32,#4caf50);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;margin:0 auto 15px;font-size:1.1rem}
.howto-step h5{color:#c8e6c9;margin-bottom:8px}
.howto-step p{color:#999;font-size:0.88rem}

/* Footer */
.site-footer{background:#060906;border-top:1px solid #1b3a1b;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h5{color:#a5d6a7;margin-bottom:15px;font-size:1rem}
.footer-col p,.footer-col a{color:#777;font-size:0.88rem;display:block;margin-bottom:8px}
.footer-col a:hover{color:#4caf50}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #1b3a1b;color:#555;font-size:0.85rem}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:15px}
.footer-logo img{height:35px}
.footer-qr{display:flex;gap:20px;justify-content:center;margin:20px 0}
.footer-qr img{width:120px;border-radius:8px}

/* MCP Widget */
.mcp-widget{background:#111;border:1px solid #1b3a1b;border-radius:12px;padding:20px;margin:20px 0;text-align:center}
.mcp-widget h5{color:#a5d6a7;margin-bottom:10px}
.mcp-widget .mcp-status{display:inline-flex;align-items:center;gap:6px;color:#4caf50;font-size:0.85rem}
.mcp-widget .mcp-dot{width:8px;height:8px;background:#4caf50;border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:0.85rem;color:#777}
.breadcrumb a{color:#4caf50}
.breadcrumb span{margin:0 8px;color:#555}

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

/* EEAT Author Box */
.author-box{background:#111;border:1px solid #1b3a1b;border-radius:12px;padding:20px;margin:30px 0;display:flex;gap:20px;align-items:flex-start}
.author-box img{width:80px;height:80px;border-radius:50%;object-fit:cover;border:2px solid #2e7d32}
.author-box-info h5{color:#a5d6a7;margin-bottom:5px}
.author-box-info .author-title{color:#4caf50;font-size:0.85rem;margin-bottom:8px}
.author-box-info p{color:#999;font-size:0.88rem;margin-bottom:0}

/* Article Meta */
.article-meta{display:flex;gap:20px;color:#777;font-size:0.82rem;margin-bottom:20px;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid #1b3a1b}
.article-meta span{display:flex;align-items:center;gap:4px}

/* Responsive */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.active{display:flex}
  .main-nav a{padding:10px 15px;border-bottom:none;border-left:2px solid transparent}
  .main-nav a:hover,.main-nav a.active{border-left-color:#4caf50}
  .mobile-menu-btn{display:block}
  .banner-content h1{font-size:1.8rem}
  .banner-section{min-height:350px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .section{padding:40px 0}
  h1{font-size:1.6rem}
  h2{font-size:1.4rem}
  .footer-grid{grid-template-columns:1fr 1fr}
  .expert-grid{grid-template-columns:1fr}
  .author-box{flex-direction:column;align-items:center;text-align:center}
  .video-overlay-inner{width:95%}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .banner-content h1{font-size:1.5rem}
  .search-input-wrap{flex-direction:column;border-radius:12px}
  .search-input-wrap button{border-radius:0 0 12px 12px}
}

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