/* ========== 麻豆传媒植物视频社区 - 全站样式 ========== */
/* 域名: ywsxqc.cn */

/* ---------- Reset & Base ---------- */
*,*::before,*::after{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","WenQuanYi Micro Hei",sans-serif;color:#333;line-height:1.7;background:#f8faf5}
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 20px}

/* ---------- Header ---------- */
.site-header{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:48px;width:auto}
.logo-wrap .brand-name{font-size:1.5rem;font-weight:700;color:#1a6b28}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:6px;font-size:.95rem;font-weight:500;color:#444;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#e8f5e9;color:#1a6b28}
.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#333}

/* ---------- Search Bar ---------- */
.search-bar{background:#e8f5e9;padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%;background:#fff;border-radius:30px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.search-box input{flex:1;border:none;padding:12px 24px;font-size:1rem;outline:none;background:transparent}
.search-box button{background:#2d8c3c;color:#fff;border:none;padding:12px 28px;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-box button:hover{background:#1a6b28}

/* ---------- Hero Banner ---------- */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner .banner-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.65)}
.hero-banner .banner-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-banner h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,.4)}
.hero-banner .subtitle{font-size:1.2rem;line-height:1.8;text-shadow:0 1px 6px rgba(0,0,0,.3)}
.hero-banner .hero-tags{margin-top:20px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.hero-banner .hero-tags span{background:rgba(255,255,255,.2);backdrop-filter:blur(4px);padding:6px 18px;border-radius:20px;font-size:.9rem}

/* ---------- Section Common ---------- */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;font-weight:700;color:#1a3a1a;margin-bottom:8px}
.section-title p{color:#666;font-size:1rem}
.section-title h3{font-size:1.3rem;color:#2d8c3c;margin-top:4px}

/* ---------- Video Cards Grid ---------- */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 28px rgba(0,0,0,.14)}
.video-card .thumb-wrap{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb-wrap img{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(45,140,60,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:"";width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card .card-body{padding:14px 16px}
.video-card .card-body h4{font-size:1rem;font-weight:600;color:#222;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:.82rem}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.78rem}

/* ---------- Plant Media Section ---------- */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 12px rgba(0,0,0,.06);transition:transform .3s}
.media-card:hover{transform:translateY(-4px)}
.media-card img{width:100%;height:200px;object-fit:cover}
.media-card .media-body{padding:16px}
.media-card h4{font-size:1.05rem;font-weight:600;color:#1a3a1a;margin-bottom:8px}
.media-card p{font-size:.9rem;color:#666;line-height:1.6}

/* ---------- AI Section ---------- */
.ai-section{background:linear-gradient(135deg,#0a2e1a 0%,#1a5c2e 100%);color:#fff;padding:80px 0}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.ai-content h2{font-size:2rem;font-weight:700;margin-bottom:16px}
.ai-content p{font-size:1rem;line-height:1.8;opacity:.9;margin-bottom:12px}
.ai-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.ai-feature-item{background:rgba(255,255,255,.1);padding:20px;border-radius:10px;backdrop-filter:blur(4px)}
.ai-feature-item h5{font-size:1rem;font-weight:600;margin-bottom:6px}
.ai-feature-item p{font-size:.88rem;opacity:.8}
.ai-image{border-radius:16px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.ai-image img{width:100%;display:block}

/* ---------- Expert Section ---------- */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.06);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid #e8f5e9}
.expert-card h4{font-size:1.05rem;font-weight:600;color:#1a3a1a;margin-bottom:4px}
.expert-card .role{color:#2d8c3c;font-size:.88rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#666;line-height:1.6;margin-bottom:12px}
.expert-card .expert-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin-bottom:14px}
.expert-card .expert-tags span{background:#e8f5e9;color:#2d8c3c;padding:3px 10px;border-radius:12px;font-size:.78rem}
.expert-card .btn-sm{display:inline-block;padding:6px 18px;background:#2d8c3c;color:#fff;border-radius:20px;font-size:.85rem;transition:background .3s}
.expert-card .btn-sm:hover{background:#1a6b28}

/* ---------- Partner Logos ---------- */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center;padding:20px 0}
.partner-logo{width:120px;height:60px;background:#f0f0f0;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.85rem;color:#888;font-weight:500}

/* ---------- Reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 3px 12px rgba(0,0,0,.06)}
.review-card .stars{color:#f5a623;font-size:1.1rem;margin-bottom:10px}
.review-card blockquote{font-size:.95rem;color:#555;line-height:1.7;margin-bottom:14px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:40px;height:40px;border-radius:50%;background:#e8f5e9;display:flex;align-items:center;justify-content:center;font-weight:700;color:#2d8c3c;font-size:.9rem}
.review-card .reviewer .info{font-size:.85rem}
.review-card .reviewer .info strong{color:#333}
.review-card .reviewer .info span{color:#999;display:block;font-size:.78rem}

/* ---------- 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,.04);overflow:hidden}
.faq-item .faq-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;color:#1a3a1a;transition:background .3s}
.faq-item .faq-q:hover{background:#f0f8f0}
.faq-item .faq-q::after{content:"+";font-size:1.4rem;color:#2d8c3c;transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}
.faq-item .faq-a p{font-size:.92rem;color:#666;line-height:1.7}

/* ---------- Community Section ---------- */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.community-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 3px 12px rgba(0,0,0,.06);transition:transform .3s}
.community-card:hover{transform:translateY(-4px)}
.community-card .card-icon{width:100%;height:160px;background:linear-gradient(135deg,#2d8c3c,#4caf50);display:flex;align-items:center;justify-content:center;font-size:3rem;color:#fff}
.community-card .card-content{padding:20px}
.community-card h4{font-size:1.05rem;font-weight:600;color:#1a3a1a;margin-bottom:8px}
.community-card p{font-size:.88rem;color:#666;line-height:1.6}

/* ---------- Contact Section ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h3{font-size:1.4rem;font-weight:700;color:#1a3a1a;margin-bottom:20px}
.contact-item{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start}
.contact-item .icon{width:44px;height:44px;background:#e8f5e9;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#2d8c3c;flex-shrink:0}
.contact-item .text h5{font-size:.95rem;font-weight:600;color:#333;margin-bottom:2px}
.contact-item .text p{font-size:.88rem;color:#666}
.contact-qrcodes{display:flex;gap:24px;margin-top:24px}
.contact-qrcodes .qr-item{text-align:center}
.contact-qrcodes .qr-item img{width:140px;height:140px;border-radius:8px;border:2px solid #e8f5e9}
.contact-qrcodes .qr-item p{font-size:.82rem;color:#888;margin-top:6px}

/* ---------- Social Share ---------- */
.share-bar{display:flex;justify-content:center;gap:16px;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:20px;font-size:.88rem;color:#fff;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}

/* ---------- Footer ---------- */
.site-footer{background:#1a3a1a;color:#ccc;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-col h5{color:#fff;font-size:1.05rem;font-weight:600;margin-bottom:16px}
.footer-col p{font-size:.88rem;line-height:1.7;color:#aaa}
.footer-col a{display:block;color:#aaa;font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#4caf50}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:.82rem;color:#888}
.footer-bottom .update-time{margin-top:6px;color:#999}

/* ---------- Back to Top ---------- */
.back-to-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:#2d8c3c;color:#fff;border:none;border-radius:50%;font-size:1.3rem;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.2);transition:background .3s;z-index:999}
.back-to-top:hover{background:#1a6b28}
.back-to-top.show{display:flex}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#888}
.breadcrumb a{color:#2d8c3c}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ---------- How-To Guide ---------- */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.06)}
.howto-step .step-num{width:48px;height:48px;background:#2d8c3c;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 14px}
.howto-step h5{font-size:1rem;font-weight:600;color:#1a3a1a;margin-bottom:8px}
.howto-step p{font-size:.88rem;color:#666}

/* ---------- Lazy Load ---------- */
img[data-src]{opacity:0;transition:opacity .5s}
img[data-src].loaded,img:not([data-src]){opacity:1}

/* ---------- Interference Tags (hidden) ---------- */
.dyz-noise{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)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .ai-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .media-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .hero-banner{height:400px}
  .hero-banner h1{font-size:1.8rem}
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding-top:10px}
  .main-nav.open{display:flex}
  .nav-toggle{display:block}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-banner{height:320px}
  .hero-banner h1{font-size:1.5rem}
  .section{padding:40px 0}
}

/* ---------- Video Player Section ---------- */
.video-player-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-player-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.video-wrapper{position:relative;background:#000;border-radius:12px 12px 0 0;overflow:hidden}
.video-wrapper video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.video-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(0,0,0,.4);cursor:pointer;transition:opacity .3s}
.video-overlay:hover{background:rgba(0,0,0,.3)}
.play-circle{width:64px;height:64px;background:rgba(45,140,60,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff;margin-bottom:10px;transition:transform .3s}
.video-overlay:hover .play-circle{transform:scale(1.1)}
.video-overlay p{color:#fff;font-size:.9rem;opacity:.9}
.video-info{padding:16px}
.video-info h4{font-size:1rem;font-weight:600;color:#222;margin-bottom:6px}
.video-info .video-date{font-size:.82rem;color:#2d8c3c;margin-bottom:8px}
.video-info .video-desc{font-size:.88rem;color:#666;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Video Badge ---------- */
.video-card[data-badge]::before{content:attr(data-badge);position:absolute;top:10px;left:10px;background:linear-gradient(135deg,#ff6b35,#f7c948);color:#fff;padding:3px 12px;border-radius:12px;font-size:.75rem;font-weight:600;z-index:5;letter-spacing:1px}
.video-card{position:relative}

@media(max-width:768px){
  .video-player-grid{grid-template-columns:1fr}
}