/* ============================================
   抖阴 - 植物视频社区 全站样式表
   品牌: 抖阴 | 域名: mbhnao.cn
   ============================================ */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:#333;line-height:1.8;background:#f8faf5}
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:1.05rem}
h6{font-size:0.95rem}

/* 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:0 30px;position:relative;z-index:1}
.section-title h2::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#2d8c3c,#5cb85c);border-radius:2px}
.section-title p{color:#666;margin-top:15px;font-size:1rem}

/* 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:12px 20px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:48px;width:auto}
.logo span{font-size:1.5rem;font-weight:800;color:#1a6b28}
.main-nav{display:flex;gap:5px}
.main-nav a{padding:8px 14px;font-size:.95rem;color:#333;border-radius:6px;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#e8f5e9;color:#1a6b28}
.nav-toggle{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:.95rem;outline:none;transition:border-color .3s}
.search-form input:focus{border-color:#1a6b28}
.search-form button{padding:10px 25px;background:#2d8c3c;color:#fff;border:2px solid #2d8c3c;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-form button:hover{background:#1a6b28}

/* Banner */
.banner{position:relative;overflow:hidden;max-height:500px}
.banner img{width:100%;object-fit:cover;min-height:300px}
.banner-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(26,58,26,.75),rgba(45,140,60,.55));display:flex;align-items:center;justify-content:center;text-align:center;padding:30px}
.banner-content{color:#fff;max-width:800px}
.banner-content h1{font-size:2.8rem;margin-bottom:15px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}
.banner-content p{font-size:1.15rem;line-height:1.8;text-shadow:1px 1px 2px rgba(0,0,0,.2)}
.banner-content .btn{display:inline-block;margin-top:20px;padding:12px 35px;background:#fff;color:#1a6b28;border-radius:30px;font-weight:700;font-size:1rem;transition:all .3s}
.banner-content .btn:hover{background:#e8f5e9;transform:translateY(-2px)}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.9rem;color:#666}
.breadcrumb a{color:#2d8c3c}
.breadcrumb span{margin:0 8px;color:#999}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 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;overflow:hidden;padding-top:56.25%}
.video-thumb video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:0}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s;z-index:1}
.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(45,140,60,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:2}
.play-btn::after{content:'';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 .play-btn{opacity:1}
.video-info{padding:15px}
.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:15px;font-size:.85rem;color:#888}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:#e8f5e9;color:#2d8c3c;border-radius:12px;font-size:.8rem;margin-top:8px}

/* Feature Grid */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.feature-card{background:#fff;border-radius:12px;padding:30px 25px;text-align:center;box-shadow:0 3px 15px rgba(0,0,0,.06);transition:transform .3s}
.feature-card:hover{transform:translateY(-5px)}
.feature-icon{width:70px;height:70px;margin:0 auto 20px;background:linear-gradient(135deg,#e8f5e9,#c8e6c9);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem}
.feature-card h3{margin-bottom:10px;font-size:1.1rem}
.feature-card p{color:#666;font-size:.95rem}

/* Expert Section */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:30px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 15px rgba(0,0,0,.08);text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-avatar{width:120px;height:120px;border-radius:50%;margin:25px auto 15px;overflow:hidden;border:3px solid #e8f5e9}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{color:#1a3a1a;margin-bottom:5px}
.expert-card .role{color:#2d8c3c;font-size:.9rem;margin-bottom:10px}
.expert-card p{padding:0 20px;color:#666;font-size:.9rem;margin-bottom:15px}
.expert-card .btn-sm{display:inline-block;padding:8px 20px;background:#2d8c3c;color:#fff;border-radius:20px;font-size:.85rem;margin-bottom:20px;transition:background .3s}
.expert-card .btn-sm:hover{background:#1a6b28}

/* 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 25px;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:1.3rem;color:#2d8c3c;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:all .3s ease;color:#555}
.faq-item.active .faq-answer{padding:0 25px 18px;max-height:500px}

/* Review Section */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.review-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 3px 15px rgba(0,0,0,.06)}
.review-card .stars{color:#f5a623;font-size:1.1rem;margin-bottom:10px}
.review-card p{color:#555;font-style:italic;margin-bottom:12px;line-height:1.7}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer-name{font-weight:600;color:#1a3a1a}
.review-card .reviewer-date{font-size:.85rem;color:#999}

/* Partner Logos */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall img{height:60px;filter:grayscale(100%);opacity:.6;transition:all .3s}
.partner-wall img:hover{filter:grayscale(0);opacity:1}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.contact-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 3px 15px rgba(0,0,0,.06);text-align:center}
.contact-card h4{margin-bottom:12px;color:#1a3a1a}
.contact-card p{color:#666;margin-bottom:8px}
.contact-card img{max-width:180px;margin:10px auto}

/* 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 18px;border-radius:20px;color:#fff;font-size:.9rem;transition:opacity .3s}
.share-btn:hover{opacity:.85;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-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;margin-bottom:30px}
.footer-col h4{color:#fff;margin-bottom:15px;font-size:1.05rem}
.footer-col p,.footer-col a{color:#aaa;font-size:.9rem;line-height:2}
.footer-col a:hover{color:#5cb85c}
.footer-col img{max-width:140px;border-radius:8px;margin-top:8px}
.footer-trust{border-top:1px solid rgba(255,255,255,.1);padding:25px 0;margin-top:20px;font-size:.85rem;color:#999;line-height:1.8}
.footer-trust p{margin-bottom:8px}
.footer-trust strong{color:#ccc}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.85rem;color:#888}
.footer-bottom a{color:#5cb85c}

/* MCP Frontend Mock */
.mcp-widget{background:#f0f7f0;border:1px dashed #2d8c3c;border-radius:10px;padding:20px;margin:20px 0;text-align:center}
.mcp-widget h5{color:#1a6b28;margin-bottom:10px}
.mcp-widget p{color:#666;font-size:.9rem}

/* Lazy Load Placeholder */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* Tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:15px 0}
.tag-cloud a{display:inline-block;padding:5px 15px;background:#e8f5e9;color:#2d8c3c;border-radius:15px;font-size:.85rem;transition:all .3s}
.tag-cloud a:hover{background:#2d8c3c;color:#fff}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;counter-reset:step}
.howto-step{background:#fff;border-radius:12px;padding:25px;text-align:center;box-shadow:0 3px 15px rgba(0,0,0,.06);position:relative;counter-increment:step}
.howto-step::before{content:counter(step);position:absolute;top:-15px;left:50%;transform:translateX(-50%);width:35px;height:35px;background:#2d8c3c;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.howto-step h4{margin-top:10px;margin-bottom:8px}
.howto-step p{color:#666;font-size:.9rem}

/* Interference tags - hidden but present for SEO */
.dy-noise{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;opacity:0;pointer-events:none}

/* 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 15px;border-bottom:1px solid #f0f0f0}
  .nav-toggle{display:block}
  .banner-content h1{font-size:1.8rem}
  .banner-content p{font-size:.95rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .section{padding:40px 0}
  h1{font-size:1.8rem}
  h2{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr}
  .search-form{flex-direction:row}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .banner-content h1{font-size:1.5rem}
}