/* 香蕉视频植物视频社区 - 全站样式表 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;color:#333;line-height:1.8;background:#f8fdf5}
a{color:#2d8c3c;text-decoration:none;transition:color .3s}
a:hover{color:#1a6b28}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 15px}

/* 头部导航 */
.site-header{background:#1a3a1a;color:#fff;position:sticky;top:0;z-index:999;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 15px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{width:45px;height:45px;border-radius:50%}
.logo-wrap h1{font-size:22px;color:#7cfc00;margin:0}
.logo-wrap h1 span{color:#fff;font-size:14px;display:block;font-weight:normal}
.main-nav{display:flex;gap:5px;flex-wrap:wrap}
.main-nav a{color:#ddd;padding:8px 14px;border-radius:4px;font-size:14px;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#2d8c3c;color:#fff}

/* 搜索框 */
.search-bar{background:#145214;padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;width:100%;max-width:600px}
.search-box input{flex:1;padding:10px 16px;border:2px solid #2d8c3c;border-radius:25px 0 0 25px;outline:none;font-size:15px}
.search-box button{padding:10px 25px;background:#2d8c3c;color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:15px}
.search-box button:hover{background:#1a6b28}

/* Banner区域 */
.banner-section{position:relative;height:500px;overflow:hidden}
.banner-section img{width:100%;height:100%;object-fit:cover}
.banner-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to right,rgba(0,0,0,.7) 0%,rgba(0,0,0,.3) 100%);display:flex;align-items:center}
.banner-content{max-width:1200px;margin:0 auto;padding:0 40px;color:#fff}
.banner-content h2{font-size:42px;margin-bottom:15px;text-shadow:2px 2px 4px rgba(0,0,0,.5)}
.banner-content p{font-size:18px;max-width:600px;line-height:1.8;text-shadow:1px 1px 2px rgba(0,0,0,.5)}

/* 视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;padding:20px 0}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.1);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.2)}
.video-thumb{position:relative;padding-top:56.25%;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(45,140,60,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.play-btn::after{content:'';border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:5px}
.video-card:hover .play-btn{opacity:1}
.video-info{padding:15px}
.video-info h3{font-size:16px;margin-bottom:8px;color:#1a3a1a;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:15px;font-size:12px;color:#888}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tag{display:inline-block;background:#e8f5e9;color:#2d8c3c;padding:2px 8px;border-radius:10px;font-size:11px;margin-top:8px}

/* 栏目区块 */
.section-block{padding:50px 0}
.section-block:nth-child(even){background:#fff}
.section-title{text-align:center;margin-bottom:35px}
.section-title h2{font-size:28px;color:#1a3a1a;position:relative;display:inline-block;padding-bottom:10px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:#2d8c3c}
.section-title p{color:#666;margin-top:10px;font-size:15px}

/* 专家展示 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px}
.expert-card{background:#fff;border-radius:12px;padding:25px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.08);transition:transform .3s}
.expert-card:hover{transform:translateY(-3px)}
.expert-card img{width:100px;height:100px;border-radius:50%;margin:0 auto 15px;object-fit:cover;border:3px solid #2d8c3c}
.expert-card h4{color:#1a3a1a;margin-bottom:5px}
.expert-card .role{color:#2d8c3c;font-size:13px;margin-bottom:10px}
.expert-card p{font-size:13px;color:#666}
.expert-card .btn{display:inline-block;margin-top:12px;padding:6px 16px;background:#2d8c3c;color:#fff;border-radius:20px;font-size:13px}
.expert-card .btn:hover{background:#1a6b28;color:#fff}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:8px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.faq-item summary{padding:18px 20px;cursor:pointer;font-weight:bold;color:#1a3a1a;font-size:15px;list-style:none;position:relative;padding-right:40px}
.faq-item summary::after{content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;color:#2d8c3c}
.faq-item[open] summary::after{content:'-'}
.faq-item .faq-answer{padding:0 20px 18px;color:#555;font-size:14px;line-height:1.8}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 3px 12px rgba(0,0,0,.08)}
.review-card .stars{color:#ffc107;margin-bottom:10px;font-size:16px}
.review-card p{font-size:14px;color:#555;line-height:1.7;margin-bottom:12px}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer-name{font-weight:bold;color:#1a3a1a;font-size:13px}
.review-card .reviewer-date{color:#999;font-size:12px}

/* 合作品牌 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center;padding:20px 0}
.brand-wall span{background:#f0f7f0;padding:15px 25px;border-radius:8px;font-size:14px;color:#2d8c3c;font-weight:bold}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px}
.contact-card{background:#fff;border-radius:12px;padding:25px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.08)}
.contact-card h4{color:#1a3a1a;margin-bottom:10px}
.contact-card p{font-size:14px;color:#555}
.contact-card img{width:150px;height:150px;margin:10px auto;border-radius:8px}

/* 社交分享 */
.share-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;padding:20px 0}
.share-btns a{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:25px;color:#fff;font-size:14px;transition:opacity .3s}
.share-btns a:hover{opacity:.8;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#000}
.share-bilibili{background:#fb7299}

/* 页脚 */
.site-footer{background:#1a3a1a;color:#ccc;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#7cfc00;margin-bottom:15px;font-size:16px}
.footer-col p,.footer-col a{font-size:13px;color:#aaa;display:block;margin-bottom:8px}
.footer-col a:hover{color:#7cfc00}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #2a4a2a;font-size:13px;color:#888}
.footer-qr{display:flex;justify-content:center;gap:30px;margin:20px 0}
.footer-qr img{width:120px;height:120px;border-radius:8px}
.footer-qr p{text-align:center;font-size:12px;color:#aaa;margin-top:5px}

/* How-To指南 */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.howto-step{background:#fff;border-radius:12px;padding:25px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.08)}
.howto-step .step-num{width:40px;height:40px;background:#2d8c3c;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-weight:bold}
.howto-step h4{color:#1a3a1a;margin-bottom:8px}
.howto-step p{font-size:13px;color:#666}

/* AI赋能区块 */
.ai-features{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px}
.ai-card{background:linear-gradient(135deg,#e8f5e9,#f1f8e9);border-radius:12px;padding:30px;box-shadow:0 3px 12px rgba(0,0,0,.08)}
.ai-card h4{color:#1a3a1a;margin-bottom:10px;font-size:18px}
.ai-card p{font-size:14px;color:#555;line-height:1.7}

/* 面包屑 */
.breadcrumb{padding:12px 0;font-size:13px;color:#888}
.breadcrumb a{color:#2d8c3c}
.breadcrumb span{margin:0 5px}

/* 响应式 */
@media(max-width:768px){
.header-inner{flex-direction:column;gap:10px}
.main-nav{justify-content:center}
.banner-section{height:300px}
.banner-content h2{font-size:24px}
.banner-content p{font-size:14px}
.video-grid{grid-template-columns:1fr}
.section-title h2{font-size:22px}
.footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
.main-nav a{padding:6px 10px;font-size:12px}
.banner-section{height:220px}
.banner-content h2{font-size:20px}
}