/* 91植物视频社区 - 全站样式表 */
/* Reset & Base */
*{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:#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}
.container{max-width:1200px;margin:0 auto;padding:0 15px}

/* Header */
.site-header{background:linear-gradient(135deg,#1a3a1a 0%,#2d5a2d 50%,#1a4a2a 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 15px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 0;flex-wrap:wrap}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{height:50px;width:auto}
.site-logo h1{color:#fff;font-size:1.5rem;white-space:nowrap}
.site-logo h1 span{color:#7cfc00}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#e0f0e0;padding:12px 16px;font-size:.95rem;transition:all .3s;border-bottom:3px solid transparent;display:block}
.main-nav a:hover,.main-nav a.active{color:#7cfc00;background:rgba(255,255,255,.08);border-bottom-color:#7cfc00}
.nav-toggle{display:none;color:#fff;font-size:1.8rem;cursor:pointer;background:none;border:none;padding:8px}

/* Search Bar */
.search-bar{background:#1a3a1a;padding:10px 0;border-bottom:1px solid #2d5a2d}
.search-bar form{display:flex;max-width:600px;margin:0 auto}
.search-bar input{flex:1;padding:10px 18px;border:2px solid #3a7a3a;border-radius:25px 0 0 25px;outline:none;font-size:.95rem;background:#f0f8f0}
.search-bar button{padding:10px 25px;background:#2d8c3c;color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-bar button:hover{background:#1a6b28}

/* Banner */
.hero-banner{position:relative;height:500px;overflow:hidden;background:#1a3a1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.85}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,rgba(0,0,0,.3),rgba(0,0,0,.6));display:flex;align-items:center;justify-content:center;text-align:center;padding:20px}
.hero-content{max-width:800px;color:#fff}
.hero-content h2{font-size:2.5rem;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-content h2 span{color:#7cfc00}
.hero-content p{font-size:1.15rem;line-height:1.8;text-shadow:1px 1px 4px rgba(0,0,0,.5)}
.hero-content .btn-primary{display:inline-block;margin-top:20px;padding:12px 35px;background:#2d8c3c;color:#fff;border-radius:30px;font-size:1.05rem;transition:all .3s;box-shadow:0 4px 15px rgba(45,140,60,.4)}
.hero-content .btn-primary:hover{background:#1a6b28;transform:translateY(-2px)}

/* Section Common */
.section{padding:60px 0}
.section-alt{background:#eef5ee}
.section-dark{background:#1a3a1a;color:#e0f0e0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#1a3a1a;position:relative;display:inline-block;padding-bottom:12px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:3px;background:linear-gradient(90deg,#2d8c3c,#7cfc00)}
.section-title h2 span{color:#2d8c3c}
.section-title p{color:#666;margin-top:10px;font-size:1.05rem}
.section-dark .section-title h2{color:#e0f0e0}
.section-dark .section-title h2::after{background:linear-gradient(90deg,#7cfc00,#2d8c3c)}

/* 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 3px 15px rgba(0,0,0,.08);transition:all .3s;position:relative}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;background:#1a3a1a;overflow:hidden}
.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)}
.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;cursor:pointer}
.play-btn::after{content:'';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}
.video-info{padding:15px}
.video-info h3{font-size:1rem;margin-bottom:8px;color:#1a3a1a;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;color:#888;font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tag{display:inline-block;padding:2px 8px;background:#e8f5e8;color:#2d8c3c;border-radius:10px;font-size:.75rem;margin-top:6px}
.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}

/* Module Cards */
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.module-card{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 3px 15px rgba(0,0,0,.06);transition:all .3s;border:1px solid #e8f5e8}
.module-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(45,140,60,.12);border-color:#2d8c3c}
.module-icon{width:70px;height:70px;margin:0 auto 15px;background:linear-gradient(135deg,#2d8c3c,#7cfc00);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff}
.module-card h3{font-size:1.15rem;color:#1a3a1a;margin-bottom:10px}
.module-card p{color:#666;font-size:.9rem;line-height:1.7}

/* Expert Cards */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 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-avatar{width:100%;height:200px;object-fit:cover}
.expert-info{padding:20px}
.expert-info h3{font-size:1.1rem;color:#1a3a1a;margin-bottom:5px}
.expert-info .role{color:#2d8c3c;font-size:.85rem;margin-bottom:10px}
.expert-info p{color:#666;font-size:.85rem;line-height:1.6;margin-bottom:12px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.expert-btns a{padding:6px 15px;border-radius:20px;font-size:.8rem;transition:all .3s}
.btn-contact{background:#2d8c3c;color:#fff}
.btn-contact:hover{background:#1a6b28;color:#fff}
.btn-works{background:#e8f5e8;color:#2d8c3c}
.btn-works:hover{background:#d0ecd0}

/* 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;border:1px solid #e8f5e8}
.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:#f0f8f0}
.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 .4s;color:#555;line-height:1.8}
.faq-item.active .faq-answer{padding:0 25px 18px;max-height:500px}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 3px 15px rgba(0,0,0,.06);border-left:4px solid #2d8c3c}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:45px;height:45px;border-radius:50%;background:linear-gradient(135deg,#2d8c3c,#7cfc00);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;color:#1a3a1a}
.review-date{color:#999;font-size:.8rem}
.review-stars{color:#f5a623;margin-bottom:8px;font-size:.9rem}
.review-text{color:#555;font-size:.9rem;line-height:1.7}

/* 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,.05);transition:all .3s;min-width:150px;text-align:center}
.partner-wall .partner-item:hover{transform:translateY(-3px);box-shadow:0 5px 20px rgba(0,0,0,.1)}
.partner-wall .partner-item span{font-size:1.1rem;font-weight:600;color:#1a3a1a}

/* 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 3px 15px rgba(0,0,0,.06);position:relative}
.step-num{width:45px;height:45px;background:#2d8c3c;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 15px}
.howto-step h4{color:#1a3a1a;margin-bottom:8px}
.howto-step p{color:#666;font-size:.85rem}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{padding:30px;background:#fff;border-radius:12px;box-shadow:0 3px 15px rgba(0,0,0,.06)}
.contact-info h3{color:#1a3a1a;margin-bottom:20px;font-size:1.3rem}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid #eee}
.contact-item:last-child{border-bottom:none}
.contact-icon{width:40px;height:40px;background:#e8f5e8;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#2d8c3c;font-weight:700;flex-shrink:0}
.contact-item .label{font-weight:600;color:#1a3a1a;margin-bottom:3px}
.contact-item .value{color:#666;font-size:.9rem}
.qrcode-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.qrcode-item{text-align:center;padding:20px;background:#fff;border-radius:12px;box-shadow:0 3px 15px rgba(0,0,0,.06)}
.qrcode-item img{width:180px;margin:0 auto 10px;border-radius:8px}
.qrcode-item p{font-weight:600;color:#1a3a1a}

/* Share Buttons */
.share-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.share-btn{padding:8px 20px;border-radius:25px;color:#fff;font-size:.85rem;transition:all .3s;cursor:pointer;border:none}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}
.share-btn:hover{opacity:.85;transform:translateY(-2px)}

/* Footer */
.site-footer{background:#0d1f0d;color:#a0b0a0;padding:40px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:30px;border-bottom:1px solid #1a3a1a}
.footer-col h4{color:#7cfc00;margin-bottom:15px;font-size:1.05rem}
.footer-col p{font-size:.85rem;line-height:1.8;margin-bottom:8px}
.footer-col a{color:#a0b0a0;font-size:.85rem;display:block;padding:3px 0;transition:color .3s}
.footer-col a:hover{color:#7cfc00}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:15px}
.footer-logo img{height:40px}
.footer-logo span{color:#fff;font-size:1.3rem;font-weight:700}
.footer-bottom{text-align:center;padding:20px 0;font-size:.8rem;color:#607060}
.footer-bottom a{color:#7cfc00}
.update-time{margin-top:5px;color:#506050;font-size:.75rem}

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

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

/* Responsive */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(3,1fr)}
.module-grid{grid-template-columns:repeat(2,1fr)}
.expert-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.header-inner{flex-wrap:wrap}
.nav-toggle{display:block}
.main-nav{display:none;width:100%;flex-direction:column}
.main-nav.active{display:flex}
.main-nav a{padding:12px 15px;border-bottom:1px solid rgba(255,255,255,.1)}
.hero-banner{height:350px}
.hero-content h2{font-size:1.6rem}
.hero-content p{font-size:.95rem}
.video-grid{grid-template-columns:repeat(2,1fr)}
.module-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
.section{padding:40px 0}
.section-title h2{font-size:1.5rem}
.qrcode-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.hero-banner{height:280px}
.hero-content h2{font-size:1.3rem}
}

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

/* MCP Service Frontend */
.mcp-panel{background:#f0f8f0;border:1px solid #d0e8d0;border-radius:10px;padding:20px;margin-top:20px}
.mcp-panel h4{color:#1a3a1a;margin-bottom:10px}
.mcp-panel .mcp-status{display:inline-block;padding:4px 12px;background:#2d8c3c;color:#fff;border-radius:15px;font-size:.8rem}
.mcp-panel .mcp-info{color:#666;font-size:.85rem;margin-top:8px}

/* Tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:15px}
.tag-cloud a{padding:5px 15px;background:#e8f5e8;color:#2d8c3c;border-radius:20px;font-size:.8rem;transition:all .3s}
.tag-cloud a:hover{background:#2d8c3c;color:#fff}

/* Scroll to top */
.scroll-top{position:fixed;bottom:30px;right:30px;width:45px;height:45px;background:#2d8c3c;color:#fff;border-radius:50%;display:none;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;z-index:999;transition:all .3s;border:none;box-shadow:0 3px 10px rgba(0,0,0,.2)}
.scroll-top:hover{background:#1a6b28;transform:translateY(-3px)}
.scroll-top.show{display:flex}

/* Video Author Info */
.video-author{display:flex;justify-content:space-between;align-items:center;margin-top:6px;font-size:.78rem;color:#888}
.video-author .author-name{color:#2d8c3c;font-weight:500}
.video-author .pub-date{color:#aaa}

/* Video Preview (H5 video tag) */
.video-preview{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1;display:none}
.video-card:hover .video-preview{display:block}
.video-thumb .play-btn{z-index:2}
.video-thumb .video-duration{z-index:2}

/* Timeline */
.timeline{position:relative;padding-left:30px;margin:20px 0}
.timeline::before{content:'';position:absolute;left:10px;top:0;bottom:0;width:3px;background:linear-gradient(to bottom,#2d8c3c,#7cfc00)}
.timeline-item{position:relative;margin-bottom:25px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:6px;width:12px;height:12px;background:#2d8c3c;border-radius:50%;border:3px solid #e8f5e8}
.timeline-item h6{color:#2d8c3c;font-size:.95rem;margin-bottom:5px}
.timeline-item p{color:#666;font-size:.9rem;line-height:1.7}

/* Legal Content */
.legal-content{max-width:800px;margin:0 auto}
.legal-content h3{color:#1a3a1a;margin:25px 0 12px;font-size:1.2rem;border-left:4px solid #2d8c3c;padding-left:12px}
.legal-content p{color:#555;line-height:1.8;margin-bottom:12px}

/* About Content */
.about-content h3{color:#1a3a1a;margin:30px 0 15px;font-size:1.3rem;border-bottom:2px solid #e8f5e8;padding-bottom:8px}
.about-content h5{color:#2d8c3c;margin:10px 0}
.about-content p{color:#555;line-height:1.8;margin-bottom:15px}

/* Footer Links */
.footer-links{padding:15px 0;border-bottom:1px solid #1a3a1a;display:flex;flex-wrap:wrap;align-items:center;gap:15px}
.footer-links h4{color:#7cfc00;margin-right:10px;font-size:.9rem}
.footer-links a{color:#607060;font-size:.8rem;transition:color .3s}
.footer-links a:hover{color:#7cfc00}

/* Recommend Section */
.recommend-section .btn-primary{display:inline-block;background:#2d8c3c;color:#fff;border-radius:20px;text-decoration:none;transition:all .3s}
.recommend-section .btn-primary:hover{background:#1a6b28;transform:translateY(-2px)}

/* Section Title H4/H5/H6 */
.section-title h4{color:#555;font-size:.95rem;margin-top:8px;font-weight:normal}
.section-title h5{color:#666;font-size:.9rem;margin-top:6px;font-weight:normal}
.section-title h6{color:#888;font-size:.82rem;margin-top:4px;font-weight:normal}
.module-card h6{color:#888;font-size:.78rem;margin-bottom:8px;font-weight:normal}
.expert-info h6{color:#2d8c3c;font-size:.82rem;margin:10px 0 5px;font-weight:600}