/* ============================
   抖阴 - 植物视频社区 原创CSS
   配色：森林绿 #1B5E20 / 翡翠绿 #2E7D32 / 琥珀金 #F9A825 / 暖棕 #5D4037 / 象牙白 #FAFAF5
   ============================ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#2d2d2d;background:#fafaf5;line-height:1.7}
a{color:#2E7D32;text-decoration:none;transition:color .3s}
a:hover{color:#F9A825}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:60px 0}

/* Header */
.site-header{background:linear-gradient(135deg,#1B5E20 0%,#2E7D32 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{width:42px;height:42px;border-radius:8px}
.brand-name{color:#fff;font-size:1.5rem;font-weight:700;letter-spacing:1px}
.main-nav{display:flex;gap:24px;list-style:none}
.main-nav a{color:rgba(255,255,255,.9);font-size:.95rem;font-weight:500;padding:6px 0;position:relative}
.main-nav a:hover{color:#F9A825}
.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:#F9A825;transition:width .3s}
.main-nav a:hover::after{width:100%}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Search Bar */
.search-bar{background:rgba(27,94,32,.85);padding:10px 0}
.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 rgba(255,255,255,.3);border-radius:25px;background:rgba(255,255,255,.15);color:#fff;font-size:.9rem;outline:none;transition:border-color .3s}
.search-wrap input::placeholder{color:rgba(255,255,255,.6)}
.search-wrap input:focus{border-color:#F9A825;background:rgba(255,255,255,.25)}
.search-wrap button{padding:10px 24px;background:#F9A825;color:#1B5E20;border:none;border-radius:25px;font-weight:600;cursor:pointer;transition:background .3s}
.search-wrap button:hover{background:#FBC02D}

/* Hero */
.hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(27,94,32,.85) 0%,rgba(46,125,50,.6) 50%,rgba(0,0,0,.3) 100%)}
.hero-content{position:relative;z-index:2;max-width:700px;padding:40px 20px;margin:0 auto;text-align:center;color:#fff}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.hero-content h1 .highlight{color:#F9A825}
.hero-content p{font-size:1.15rem;margin-bottom:28px;opacity:.95;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-btns .btn-primary{padding:14px 36px;background:#F9A825;color:#1B5E20;border:none;border-radius:30px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(249,168,37,.4)}
.hero-btns .btn-primary:hover{background:#FBC02D;transform:translateY(-2px)}
.hero-btns .btn-outline{padding:14px 36px;background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);border-radius:30px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s}
.hero-btns .btn-outline:hover{border-color:#F9A825;color:#F9A825}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:32px}
.stat{text-align:center}
.stat-num{font-size:2rem;font-weight:800;color:#F9A825}
.stat-label{font-size:.85rem;opacity:.8;margin-top:4px}

/* Section Titles */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#1B5E20;margin-bottom:8px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#F9A825,#2E7D32);margin:10px auto 0;border-radius:2px}
.section-title p{color:#666;font-size:1rem;margin-top:8px}
.section-alt{background:#f0f7f0}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:all .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(27,94,32,.15)}
.video-card .thumb{position:relative;overflow:hidden;aspect-ratio:3/4}
.video-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(249,168,37,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;pointer-events:none}
.video-card .play-btn::after{content:'';border-left:20px solid #1B5E20;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-card .badge{position:absolute;top:10px;left:10px;background:#F9A825;color:#1B5E20;padding:3px 10px;border-radius:12px;font-size:.75rem;font-weight:600}
.video-card .card-info{padding:14px}
.video-card .card-title{font-size:1rem;font-weight:600;color:#1B5E20;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;justify-content:space-between;color:#888;font-size:.8rem}
.video-card .duration{background:rgba(0,0,0,.7);color:#fff;position:absolute;bottom:10px;right:10px;padding:2px 8px;border-radius:4px;font-size:.75rem}

/* Feature Grid */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.feature-card{background:#fff;padding:30px;border-radius:12px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:all .3s;border:1px solid #e8f5e9}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(27,94,32,.12);border-color:#2E7D32}
.feature-card .icon{font-size:2.5rem;margin-bottom:16px}
.feature-card h3{color:#1B5E20;font-size:1.15rem;margin-bottom:10px}
.feature-card p{color:#666;font-size:.9rem;line-height:1.6}

/* AI Features */
.ai-features{background:linear-gradient(135deg,#1B5E20,#2E7D32)}
.ai-features .section-title h2{color:#fff}
.ai-features .section-title h2::after{background:linear-gradient(90deg,#F9A825,#fff)}
.ai-features .section-title p{color:rgba(255,255,255,.8)}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.ai-grid .ai-image img{border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.ai-grid .feature-card{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);backdrop-filter:blur(10px)}
.ai-grid .feature-card h3{color:#F9A825}
.ai-grid .feature-card p{color:rgba(255,255,255,.85)}

/* Experts */
.experts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);text-align:center;padding:30px 20px;transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(27,94,32,.12)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid #e8f5e9}
.expert-card h3{color:#1B5E20;font-size:1.1rem;margin-bottom:4px}
.expert-card .role{color:#F9A825;font-size:.85rem;font-weight:600;margin-bottom:10px}
.expert-card p{color:#666;font-size:.85rem;line-height:1.5;margin-bottom:12px}
.expert-tags{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.expert-tags span{background:#e8f5e9;color:#2E7D32;padding:3px 10px;border-radius:12px;font-size:.75rem}

/* Brand Wall */
.brand-wall{display:flex;flex-wrap:wrap;gap:30px;justify-content:center;align-items:center;padding:20px 0}
.brand-item{background:#fff;padding:16px 28px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-weight:600;color:#5D4037;font-size:.95rem;transition:all .3s;border:1px solid #e8f5e9}
.brand-item:hover{border-color:#2E7D32;box-shadow:0 4px 16px rgba(27,94,32,.1)}

/* HowTo */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;counter-reset:step}
.howto-step{background:#fff;padding:28px 20px;border-radius:12px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);position:relative;border-top:3px solid #2E7D32}
.howto-step .step-num{width:40px;height:40px;background:linear-gradient(135deg,#1B5E20,#2E7D32);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 16px;font-size:1.1rem}
.howto-step h3{color:#1B5E20;font-size:1rem;margin-bottom:8px}
.howto-step p{color:#666;font-size:.85rem}

/* FAQ */
.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;border:1px solid #e8f5e9}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#1B5E20;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#f0f7f0}
.faq-question::after{content:'+';font-size:1.4rem;color:#F9A825;transition:transform .3s;font-weight:700}
.faq-item.open .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#555;line-height:1.7}
.faq-item.open .faq-answer{padding:0 24px 18px;max-height:500px}

/* Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.review-card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 4px 16px rgba(0,0,0,.06);border-left:4px solid #2E7D32}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#1B5E20,#F9A825);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-info .name{font-weight:600;color:#1B5E20;font-size:.95rem}
.review-info .date{color:#999;font-size:.8rem}
.review-stars{color:#F9A825;margin-bottom:8px;font-size:.9rem}
.review-text{color:#555;font-size:.9rem;line-height:1.6}

/* Trust */
.trust-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}
.trust-item{text-align:center;padding:20px;background:#fff;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.trust-icon{font-size:2rem;margin-bottom:10px}
.trust-item h4{color:#1B5E20;font-size:.95rem;margin-bottom:4px}
.trust-item p{color:#888;font-size:.8rem}

/* Contact Grid */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 4px 16px rgba(0,0,0,.06);text-align:center}
.contact-card h3{color:#1B5E20;margin-bottom:12px;font-size:1.05rem}
.contact-card p{color:#666;font-size:.9rem;line-height:1.6}

/* Share */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{padding:10px 20px;border-radius:25px;color:#fff;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.share-btn:hover{transform:translateY(-2px);opacity:.9}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}

/* Footer */
.site-footer{background:linear-gradient(135deg,#1B3A1B,#1B5E20);color:rgba(255,255,255,.85);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-col h4{color:#F9A825;font-size:1rem;margin-bottom:16px;font-weight:600}
.footer-col p,.footer-col a{color:rgba(255,255,255,.7);font-size:.9rem;line-height:1.8}
.footer-col a:hover{color:#F9A825}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-qr{display:flex;gap:20px;margin-top:10px}
.qr-item{text-align:center}
.qr-item img{width:100px;height:100px;border-radius:8px;border:2px solid rgba(255,255,255,.2)}
.qr-item p{font-size:.75rem;margin-top:6px;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.5)}
.update-time{margin-bottom:6px}
.icp{color:rgba(255,255,255,.4)}

/* Page Hero (Inner Pages) */
.page-hero{background:linear-gradient(135deg,#1B5E20,#2E7D32);padding:60px 0 40px;text-align:center;color:#fff}
.page-hero h1{font-size:2.2rem;font-weight:700;margin-bottom:8px}
.page-hero p{opacity:.85;font-size:1rem}
.breadcrumb{padding:12px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#2E7D32}
.content-area{padding:40px 0}

/* Author Info */
.author-info{background:#f0f7f0;padding:16px 20px;border-radius:8px;margin-bottom:24px;display:flex;align-items:center;gap:12px;font-size:.85rem;color:#555}
.author-info strong{color:#1B5E20}

/* EEAT Notice */
.eeat-notice{background:#e8f5e9;border-left:4px solid #2E7D32;padding:16px 20px;border-radius:0 8px 8px 0;margin:20px 0;font-size:.9rem;color:#2E7D32}

/* Episode Grid */
.episode-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:24px 0}
.episode-grid a{display:block;padding:12px;background:#fff;border:1px solid #e8f5e9;border-radius:8px;text-align:center;font-size:.9rem;color:#1B5E20;font-weight:500;transition:all .3s}
.episode-grid a:hover{background:#2E7D32;color:#fff;border-color:#2E7D32}

/* Detail Page */
.detail-hero{position:relative;padding:80px 0 40px;background:linear-gradient(135deg,#1B5E20,#2E7D32)}
.detail-info{display:grid;grid-template-columns:300px 1fr;gap:30px;color:#fff}
.detail-info img{border-radius:12px;width:100%;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.detail-btns{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}
.detail-btns a{padding:10px 24px;border-radius:25px;font-size:.9rem;font-weight:600;transition:all .3s}

/* Recommend Grid */
.recommend-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}

/* Timeline */
.timeline{position:relative;padding:20px 0;max-width:700px;margin:0 auto}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:#e8f5e9;transform:translateX(-50%)}
.timeline-item{position:relative;padding:20px 0;display:flex;align-items:center}
.timeline-item:nth-child(odd){flex-direction:row-reverse}
.timeline-year{background:#2E7D32;color:#fff;padding:6px 16px;border-radius:20px;font-weight:700;font-size:.9rem;z-index:1;white-space:nowrap}
.timeline-content{flex:1;background:#fff;padding:16px 20px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);margin:0 20px}
.timeline-content h4{color:#1B5E20;margin-bottom:4px}
.timeline-content p{color:#666;font-size:.85rem}

/* Community Banner */
.community-banner{background:linear-gradient(135deg,#F9A825,#FBC02D);padding:40px;border-radius:16px;text-align:center;color:#1B5E20;margin:30px 0}
.community-banner h3{font-size:1.5rem;margin-bottom:10px}
.community-banner p{margin-bottom:20px;font-size:1rem}

/* Responsive */
@media(max-width:768px){
    .header-inner{flex-wrap:wrap}
    .main-nav{display:none;flex-direction:column;width:100%;gap:0;padding:10px 0}
    .main-nav.active{display:flex}
    .main-nav a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1)}
    .nav-toggle{display:block}
    .hero-content h1{font-size:1.8rem}
    .hero-stats{gap:20px}
    .stat-num{font-size:1.4rem}
    .ai-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .detail-info{grid-template-columns:1fr}
    .timeline::before{left:20px}
    .timeline-item,.timeline-item:nth-child(odd){flex-direction:row}
    .timeline-year{min-width:auto}
    .video-grid{grid-template-columns:repeat(2,1fr);gap:12px}
}
@media(max-width:480px){
    .video-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .hero{min-height:400px}
    section{padding:40px 0}
}

/* Utility - hidden noise tags */
div[class^="n_"],div[id^="n_"]{display:none!important;position:absolute;left:-9999px;overflow:hidden;width:0;height:0}