/* 91植物视频社区 - 全站样式 uba998.cn */
*{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;line-height:1.8;background:#f8faf5}
a{color:#2d7d32;text-decoration:none;transition:color .3s}
a:hover{color:#1b5e20}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,h5,h6{color:#1a3c1a;line-height:1.4;margin-bottom:12px}
h1{font-size:2.2rem}h2{font-size:1.8rem}h3{font-size:1.4rem}h4{font-size:1.2rem}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 头部导航 */
.site-header{background:linear-gradient(135deg,#1a3c1a 0%,#2d7d32 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.2)}
.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 span{color:#fff;font-size:1.5rem;font-weight:bold}
.main-nav{display:flex;gap:0}
.main-nav a{color:#e8f5e9;padding:12px 16px;font-size:.95rem;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:#a5d6a7}
.nav-toggle{display:none;color:#fff;font-size:1.5rem;cursor:pointer;background:none;border:none}
/* 搜索框 */
.search-bar{background:#e8f5e9;padding:12px 0;border-bottom:1px solid #c8e6c9}
.search-wrap{max-width:600px;margin:0 auto;display:flex;gap:8px;padding:0 20px}
.search-wrap input{flex:1;padding:10px 16px;border:2px solid #a5d6a7;border-radius:25px;font-size:.95rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#2d7d32}
.search-wrap button{padding:10px 24px;background:#2d7d32;color:#fff;border:none;border-radius:25px;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-wrap button:hover{background:#1b5e20}
/* Banner */
.hero-banner{position:relative;height:500px;overflow:hidden;background:#1a3c1a}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(to bottom,rgba(0,0,0,.3),rgba(0,0,0,.5))}
.hero-overlay h1{color:#fff;font-size:2.8rem;text-shadow:2px 2px 8px rgba(0,0,0,.5);margin-bottom:16px}
.hero-overlay p{color:#e8f5e9;font-size:1.2rem;max-width:700px;text-shadow:1px 1px 4px rgba(0,0,0,.5)}
/* 面包屑 */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#666}
.breadcrumb a{color:#2d7d32}
.breadcrumb span{margin:0 6px;color:#999}
/* 区块通用 */
.section{padding:50px 0}
.section-alt{background:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{position:relative;display:inline-block;padding-bottom:12px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#2d7d32,#a5d6a7)}
.section-title p{color:#666;margin-top:8px;font-size:.95rem}
/* 视频卡片 */
.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%;background:#1a3c1a;overflow:hidden}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.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(45,125,50,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.play-btn::after{content:'';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:16px}
.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:12px;font-size:.8rem;color:#888}
.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:#2d7d32;padding:2px 10px;border-radius:12px;font-size:.75rem}
/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:4px solid #a5d6a7}
.expert-card h4{color:#1a3c1a;margin-bottom:4px}
.expert-card .role{color:#2d7d32;font-size:.85rem;margin-bottom:8px}
.expert-card p{font-size:.9rem;color:#666;margin-bottom:12px}
.expert-card .btn-group{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:8px 20px;border-radius:25px;font-size:.85rem;cursor:pointer;transition:all .3s;border:none}
.btn-primary{background:#2d7d32;color:#fff}.btn-primary:hover{background:#1b5e20;color:#fff}
.btn-outline{border:2px solid #2d7d32;color:#2d7d32;background:transparent}.btn-outline:hover{background:#2d7d32;color:#fff}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:8px;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.05);overflow:hidden}
.faq-q{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:bold;color:#1a3c1a;transition:background .3s}
.faq-q:hover{background:#e8f5e9}
.faq-q::after{content:'+';font-size:1.4rem;color:#2d7d32;transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#555;font-size:.95rem}
.faq-item.active .faq-a{max-height:300px;padding:0 20px 16px}
/* 评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08);border-left:4px solid #2d7d32}
.review-card .stars{color:#f9a825;font-size:1.1rem;margin-bottom:8px}
.review-card p{font-size:.95rem;color:#555;font-style:italic;margin-bottom:12px}
.review-card .reviewer{font-weight:bold;color:#1a3c1a;font-size:.85rem}
/* 合作品牌 */
.brand-wall{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center}
.brand-wall .brand-item{background:#fff;padding:16px 24px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.05);font-weight:bold;color:#1a3c1a;font-size:1rem}
/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.contact-card h4{color:#1a3c1a;margin-bottom:12px;border-bottom:2px solid #e8f5e9;padding-bottom:8px}
.contact-card p{font-size:.9rem;color:#555;margin-bottom:6px}
/* 社交分享 */
.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:10px 20px;border-radius:25px;color:#fff;font-size:.85rem;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}
/* 页脚 */
.site-footer{background:linear-gradient(135deg,#1a3c1a 0%,#0d2b0d 100%);color:#c8e6c9;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#a5d6a7;margin-bottom:16px;font-size:1rem}
.footer-col p,.footer-col a{color:#c8e6c9;font-size:.85rem;line-height:2}
.footer-col a:hover{color:#fff}
.footer-col img{max-width:120px;border-radius:8px;margin-top:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:.8rem;color:#81c784}
.footer-bottom .update-time{margin-top:6px;font-size:.75rem;color:#66bb6a}
/* MCP前端 */
.mcp-widget{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:16px;margin-top:20px}
.mcp-widget h5{color:#a5d6a7;margin-bottom:8px;font-size:.9rem}
.mcp-widget .mcp-status{display:flex;gap:8px;align-items:center;font-size:.8rem}
.mcp-widget .mcp-dot{width:8px;height:8px;border-radius:50%;background:#4caf50;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
/* How-To */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.howto-step .step-num{width:48px;height:48px;background:#2d7d32;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:bold;margin:0 auto 12px}
/* AI模块 */
.ai-features{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.ai-card{background:linear-gradient(135deg,#e8f5e9,#fff);border-radius:12px;padding:24px;box-shadow:0 4px 15px rgba(0,0,0,.08);border:1px solid #c8e6c9}
.ai-card h4{color:#1a3c1a;margin-bottom:8px}
.ai-card p{font-size:.9rem;color:#555}
/* 响应式 */
@media(max-width:768px){
.header-inner{flex-wrap:wrap}
.main-nav{display:none;width:100%;flex-direction:column;background:#1a3c1a}
.main-nav.show{display:flex}
.nav-toggle{display:block}
.hero-banner{height:350px}
.hero-overlay h1{font-size:1.8rem}
.hero-overlay p{font-size:1rem}
.video-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
h1{font-size:1.6rem}h2{font-size:1.4rem}
}
@media(max-width:480px){
.hero-banner{height:280px}
.hero-overlay h1{font-size:1.4rem}
.search-wrap{flex-direction:column}
.search-wrap button{width:100%}
}
/* 文章元信息 */
.article-meta{padding:12px 16px;background:#f0f7f0;border-radius:8px;border-left:3px solid #2d7d32}
.article-meta span{white-space:nowrap}
/* 内容声明 */
.content-disclaimer{margin-top:20px;padding:16px;background:#e8f5e9;border-radius:8px;font-size:.85rem;color:#555}
/* 干扰标签隐藏 */
.gt-noise{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}
/* 懒加载占位 */
img[data-src]{background:#e8f5e9;min-height:100px}