/* ==========================================
   抖阴 - 植物视频社区 全站样式表
   域名: fs2tn7.cn
   ========================================== */

/* CSS 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;background:#f8f9fa;line-height:1.8;overflow-x:hidden}
a{color:#2d8f4e;text-decoration:none;transition:color .3s}
a:hover{color:#1a6b35}
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:#1a1a1a}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-wrap{padding:60px 0}
.section-wrap:nth-child(even){background:#fff}

/* Header & Navigation */
.site-header{background:linear-gradient(135deg,#0d3320 0%,#1a5c38 50%,#2d8f4e 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.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{height:50px;width:auto}
.logo-wrap .brand-name{color:#fff;font-size:24px;font-weight:700;letter-spacing:2px}
.main-nav{display:flex;gap:0}
.main-nav a{color:#e0f0e6;padding:12px 16px;font-size:14px;font-weight:500;transition:all .3s;border-bottom:3px solid transparent}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.1);border-bottom-color:#7cfc00}

/* Mobile Nav Toggle */
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.nav-toggle span{width:25px;height:3px;background:#fff;transition:.3s}

/* Search Bar */
.search-bar{background:rgba(0,0,0,.15);padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%}
.search-box input{flex:1;padding:10px 20px;border:2px solid #2d8f4e;border-right:none;border-radius:25px 0 0 25px;font-size:15px;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#7cfc00}
.search-box button{padding:10px 25px;background:#2d8f4e;color:#fff;border:2px solid #2d8f4e;border-radius:0 25px 25px 0;cursor:pointer;font-size:15px;transition:background .3s}
.search-box button:hover{background:#1a6b35}

/* Breadcrumb */
.breadcrumb{padding:15px 0;font-size:13px;color:#888}
.breadcrumb a{color:#2d8f4e}
.breadcrumb span{margin:0 8px;color:#ccc}

/* Banner / Hero */
.hero-banner{position:relative;height:500px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to bottom,rgba(0,0,0,.4),rgba(0,0,0,.6))}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:20px}
.hero-content h1{font-size:42px;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-content p{font-size:18px;max-width:700px;margin:0 auto 25px;text-shadow:1px 1px 4px rgba(0,0,0,.5)}
.hero-content .btn-group{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-block;padding:12px 30px;border-radius:25px;font-size:15px;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:#2d8f4e;color:#fff}
.btn-primary:hover{background:#1a6b35;transform:translateY(-2px);box-shadow:0 5px 15px rgba(45,143,78,.4)}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#2d8f4e}
.btn-sm{padding:8px 20px;font-size:13px}

/* Section Titles */
.section-title{text-align:center;margin-bottom:45px}
.section-title h2{font-size:32px;color:#1a1a1a;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#2d8f4e,#7cfc00);margin:10px auto 0}
.section-title p{color:#777;font-size:16px;max-width:600px;margin:0 auto}

/* Video Card Grid */
.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 15px rgba(0,0,0,.08);transition:all .3s}
.video-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;cursor:pointer}
.video-thumb img,.video-thumb video{position:absolute;top:0;left: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(45,143,78,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:3}
.video-card:hover .play-btn{opacity:1}
.play-btn::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:15px}
.video-info h3,.video-info h4{font-size:15px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:15px;font-size:12px;color:#999;flex-wrap:wrap}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:#e8f5e9;color:#2d8f4e;border-radius:10px;font-size:11px;margin-top:8px;margin-right:4px}
.duration-badge{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:2}

/* Feature Cards */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.feature-card{background:#fff;padding:30px;border-radius:12px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,.12)}
.feature-icon{width:70px;height:70px;background:linear-gradient(135deg,#2d8f4e,#7cfc00);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:30px;color:#fff}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{color:#777;font-size:14px}

/* Expert Section */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:all .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-avatar{width:100%;height:250px;object-fit:cover}
.expert-info{padding:20px}
.expert-info h3{font-size:18px;margin-bottom:5px}
.expert-info .role{color:#2d8f4e;font-size:13px;margin-bottom:10px}
.expert-info p{color:#777;font-size:14px;margin-bottom:15px}
.expert-social{display:flex;gap:10px}
.expert-social a{width:32px;height:32px;background:#e8f5e9;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#2d8f4e;font-size:14px;transition:all .3s}
.expert-social a:hover{background:#2d8f4e;color:#fff}

/* Advisor Cards (社区顾问) */
.advisor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:30px}
.advisor-card{background:linear-gradient(135deg,#f5f0ff,#fff);padding:25px;border-radius:12px;border:1px solid #e8e0f5;text-align:center;transition:all .3s}
.advisor-card:hover{border-color:#7c5cbf;box-shadow:0 8px 25px rgba(124,92,191,.12)}
.advisor-card .advisor-icon{width:70px;height:70px;background:linear-gradient(135deg,#7c5cbf,#a78bfa);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;font-size:28px;color:#fff}
.advisor-card h3{font-size:16px;margin-bottom:5px}
.advisor-card .role{color:#7c5cbf;font-size:13px;margin-bottom:10px}
.advisor-card p{color:#777;font-size:13px}

/* FAQ Section */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 10px 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;font-size:15px;transition:background .3s}
.faq-question:hover{background:#f0f7f2}
.faq-question .arrow{transition:transform .3s;font-size:18px;color:#2d8f4e}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:all .3s;color:#666;font-size:14px;line-height:1.8}
.faq-item.active .faq-answer{padding:0 25px 18px;max-height:500px}

/* Reviews / Testimonials */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;padding:25px;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,.06);position:relative}
.review-card::before{content:'\201C';position:absolute;top:10px;left:15px;font-size:60px;color:#e8f5e9;font-family:serif;line-height:1}
.review-content{position:relative;z-index:1;padding-top:10px}
.review-content p{color:#555;font-size:14px;line-height:1.8;margin-bottom:15px}
.review-author{display:flex;align-items:center;gap:12px}
.review-avatar{width:45px;height:45px;border-radius:50%;background:#e8f5e9;display:flex;align-items:center;justify-content:center;color:#2d8f4e;font-weight:700;font-size:18px}
.review-author-info .name{font-weight:600;font-size:14px}
.review-author-info .date{color:#999;font-size:12px}
.stars{color:#ffc107;font-size:14px;margin-bottom:8px}

/* Partner / Cooperation */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;align-items:center}
.partner-item{background:#fff;padding:20px;border-radius:10px;display:flex;align-items:center;justify-content:center;min-height:80px;box-shadow:0 2px 10px rgba(0,0,0,.05);transition:all .3s;font-weight:600;color:#555;font-size:14px;text-align:center}
.partner-item:hover{box-shadow:0 5px 20px rgba(0,0,0,.1);transform:translateY(-3px)}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-card{background:#fff;padding:30px;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.contact-card h3{font-size:20px;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid #e8f5e9}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:15px;font-size:14px}
.contact-item .label{font-weight:600;min-width:80px;color:#333}
.contact-item .value{color:#666}

/* Share Buttons */
.share-bar{display:flex;gap:10px;align-items:center;padding:15px 0}
.share-bar span{font-size:14px;color:#666}
.share-btn{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:scale(1.1)}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#000}
.share-bilibili{background:#00a1d6}

/* Footer */
.site-footer{background:linear-gradient(135deg,#0d3320,#1a5c38);color:#ccc;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.15)}
.footer-col a{display:block;color:#aaa;font-size:13px;padding:5px 0;transition:color .3s}
.footer-col a:hover{color:#7cfc00}
.footer-col p{font-size:13px;line-height:1.8}
.footer-qr{display:flex;gap:20px;margin-top:15px}
.footer-qr img{width:100px;height:100px;border-radius:8px;border:2px solid rgba(255,255,255,.2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px}
.footer-bottom a{color:#7cfc00}
.update-time{color:#888;font-size:12px;margin-top:5px}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.howto-step{text-align:center;padding:25px;background:#fff;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.step-number{width:50px;height:50px;background:linear-gradient(135deg,#2d8f4e,#7cfc00);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:700;margin:0 auto 15px}
.howto-step h4{font-size:16px;margin-bottom:8px}
.howto-step p{color:#777;font-size:13px}

/* Community Tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.tag-cloud a{padding:6px 18px;background:#e8f5e9;color:#2d8f4e;border-radius:20px;font-size:13px;transition:all .3s}
.tag-cloud a:hover{background:#2d8f4e;color:#fff}

/* Community Feature Cards */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-bottom:30px}
.community-card{background:#fff;padding:25px;border-radius:12px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s;border:1px solid #e8f5e9}
.community-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,.12);border-color:#2d8f4e}
.community-card .comm-icon{width:60px;height:60px;background:linear-gradient(135deg,#2d8f4e,#7cfc00);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;font-size:26px;color:#fff}
.community-card h3{font-size:16px;margin-bottom:8px}
.community-card p{color:#777;font-size:13px}

/* AI Feature Cards */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.ai-card{background:linear-gradient(135deg,#f0f7f2,#fff);padding:30px;border-radius:12px;border:1px solid #e0f0e6;transition:all .3s}
.ai-card:hover{border-color:#2d8f4e;box-shadow:0 8px 25px rgba(45,143,78,.12)}
.ai-card h3{font-size:18px;margin-bottom:12px;color:#1a5c38}
.ai-card p{color:#666;font-size:14px}

/* About Page Styles */
.about-story{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:50px}
.about-story p{color:#555;line-height:2}
.about-story p+p{margin-top:15px}
.about-story img{border-radius:12px;width:100%;height:auto}
.about-subtitle{margin-bottom:20px}
.about-metrics{margin-bottom:50px}
.about-metrics .metric-number{font-size:36px;font-weight:700;color:#2d8f4e;margin-bottom:10px}
.about-timeline{margin-bottom:50px}
.random-section-title{margin-bottom:8px}
.random-section-desc{color:#777;margin-bottom:20px}
.random-video-grid{margin-bottom:40px}

/* Store Gallery */
.store-gallery{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:50px}
.store-gallery img{border-radius:12px;width:100%;height:300px;object-fit:cover}

/* QR Code Row */
.qrcode-row{display:flex;gap:20px;margin-top:20px}
.qrcode-item{text-align:center}
.qrcode-item img{border-radius:8px}
.qrcode-item p{font-size:12px;color:#888;margin-top:5px}

/* MCP Service Embed */
.mcp-embed{background:#f5f5f5;border-radius:12px;padding:30px;margin-top:30px;text-align:center}
.mcp-embed h3{margin-bottom:15px}
.mcp-embed .mcp-placeholder{background:#fff;border:2px dashed #ddd;border-radius:8px;padding:40px;color:#999;font-size:14px}

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

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

/* Responsive Design */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .feature-grid,.expert-grid,.ai-grid,.community-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .advisor-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .nav-toggle{display:flex}
  .main-nav{display:none;width:100%;flex-direction:column;background:#0d3320;position:absolute;top:100%;left:0;z-index:999}
  .main-nav.active{display:flex}
  .main-nav a{padding:15px 20px;border-bottom:1px solid rgba(255,255,255,.05)}
  .hero-banner{height:350px}
  .hero-content h1{font-size:28px}
  .hero-content p{font-size:15px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.expert-grid,.ai-grid,.community-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:1fr}
  .advisor-grid{grid-template-columns:1fr}
  .section-wrap{padding:40px 0}
  .section-title h2{font-size:24px}
  .about-story{grid-template-columns:1fr}
  .store-gallery{grid-template-columns:1fr}
  .store-gallery img{height:200px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .hero-banner{height:280px}
  .hero-content h1{font-size:22px}
}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp .6s ease forwards}

/* Print Styles */
@media print{
  .site-header,.site-footer,.search-bar,.share-bar,.nav-toggle{display:none}
  body{color:#000;background:#fff}
}