/* ========== 黑料 - 植物视频社区 全站样式表 ========== */
/* 域名: hwpvek.cn | 品牌: 黑料 */

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#333;background:#f8f9fa;line-height:1.8;overflow-x:hidden}
a{color:#2d8f4e;text-decoration:none;transition:color .3s}
a:hover{color:#1a6b35}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.4;color:#1a1a1a}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.section{padding:50px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:28px;color:#1a1a1a;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,#2d8f4e,#4CAF50);border-radius:2px}
.section-title p{color:#666;margin-top:10px;font-size:15px}

/* Header / Navigation */
.site-header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000;transition:box-shadow .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo-area{display:flex;align-items:center;gap:10px}
.logo-area img{height:45px;width:auto}
.logo-area .brand-name{font-size:22px;font-weight:800;color:#2d8f4e;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{display:block;padding:0 16px;line-height:70px;font-size:15px;color:#333;font-weight:500;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#2d8f4e}
.main-nav a::after{content:'';position:absolute;bottom:15px;left:50%;transform:translateX(-50%);width:0;height:2px;background:#2d8f4e;transition:width .3s}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.mobile-menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:#333}

/* Search Bar */
.search-bar{background:#f0f7f2;padding:12px 0;border-bottom:1px solid #e0e8e2}
.search-bar .container{display:flex;align-items:center;justify-content:center;gap:10px}
.search-bar input{width:500px;max-width:70%;padding:10px 20px;border:2px solid #2d8f4e;border-radius:25px;font-size:14px;outline:none;transition:border-color .3s}
.search-bar input:focus{border-color:#1a6b35;box-shadow:0 0 8px rgba(45,143,78,.2)}
.search-bar button{padding:10px 25px;background:linear-gradient(135deg,#2d8f4e,#4CAF50);color:#fff;border:none;border-radius:25px;cursor:pointer;font-size:14px;font-weight:600;transition:transform .2s}
.search-bar button:hover{transform:scale(1.05)}

/* Banner */
.banner{position:relative;height:500px;overflow:hidden;background:#1a1a1a}
.banner img{width:100%;height:100%;object-fit:cover;opacity:.7}
.banner-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(180deg,rgba(0,0,0,.3),rgba(0,0,0,.6))}
.banner-overlay h1{font-size:42px;color:#fff;text-shadow:2px 2px 8px rgba(0,0,0,.5);margin-bottom:15px}
.banner-overlay p{font-size:18px;color:rgba(255,255,255,.9);max-width:700px;line-height:1.8}
.banner-overlay .btn-group{margin-top:25px;display:flex;gap:15px;flex-wrap:wrap;justify-content:center}

/* Buttons */
.btn{display:inline-block;padding:12px 30px;border-radius:25px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,#2d8f4e,#4CAF50);color:#fff;box-shadow:0 4px 15px rgba(45,143,78,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(45,143,78,.4);color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#2d8f4e}
.btn-sm{padding:8px 20px;font-size:13px}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:all .3s;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#000}
.video-card .thumb img{position:absolute;top:0;left:0;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%);width:60px;height:60px;background:rgba(45,143,78,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:2}
.video-card:hover .play-btn{opacity:1}
.video-card .play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:2}
.video-card .card-body{padding:15px}
.video-card .card-body h3{font-size:15px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.video-card .card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#999}
.video-card .card-meta .views{display:flex;align-items:center;gap:4px}
.video-card .card-meta .likes{display:flex;align-items:center;gap:4px}
.video-card .tag{display:inline-block;padding:2px 8px;background:#e8f5e9;color:#2d8f4e;border-radius:10px;font-size:11px;margin-right:5px;margin-bottom:5px}

/* Expert Cards */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);text-align:center;padding:30px 20px;transition:all .3s}
.expert-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.expert-card .avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 15px;object-fit:cover;border:3px solid #e8f5e9}
.expert-card h4{font-size:18px;margin-bottom:5px}
.expert-card .role{color:#2d8f4e;font-size:13px;margin-bottom:10px}
.expert-card p{font-size:13px;color:#666;line-height:1.7}
.expert-card .expert-links{margin-top:15px;display:flex;gap:10px;justify-content:center}

/* FAQ Section */
.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}
.faq-item .faq-q{padding:18px 25px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:15px;transition:background .3s}
.faq-item .faq-q:hover{background:#f0f7f2}
.faq-item .faq-q .arrow{transition:transform .3s;font-size:18px;color:#2d8f4e}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 25px;max-height:0;overflow:hidden;transition:all .4s ease;font-size:14px;color:#555;line-height:1.8}
.faq-item.open .faq-a{padding:0 25px 18px;max-height:500px}

/* Reviews */
.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 4px 15px rgba(0,0,0,.08);position:relative}
.review-card::before{content:'\201C';font-size:60px;color:#e8f5e9;position:absolute;top:10px;left:15px;font-family:Georgia,serif;line-height:1}
.review-card .stars{color:#f5a623;font-size:14px;margin-bottom:10px}
.review-card p{font-size:14px;color:#555;line-height:1.8;margin-bottom:12px;padding-top:15px}
.review-card .reviewer{display:flex;align-items:center;gap:10px;font-size:13px;color:#999}
.review-card .reviewer strong{color:#333}

/* Cooperation / Brand Wall */
.brand-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;padding:20px 0}
.brand-wall .brand-item{background:#fff;padding:15px 25px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.05);font-weight:600;color:#555;font-size:14px;transition:all .3s}
.brand-wall .brand-item:hover{box-shadow:0 4px 15px rgba(0,0,0,.12);transform:translateY(-2px)}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px;margin-top:30px}
.howto-step{background:#fff;border-radius:12px;padding:30px 20px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08);position:relative}
.howto-step .step-num{width:45px;height:45px;background:linear-gradient(135deg,#2d8f4e,#4CAF50);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;margin:0 auto 15px}
.howto-step h4{margin-bottom:10px;font-size:16px}
.howto-step p{font-size:13px;color:#666;line-height:1.7}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px}
.contact-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.contact-card h4{font-size:18px;margin-bottom:15px;color:#2d8f4e}
.contact-card p{font-size:14px;color:#555;line-height:2}

/* Share Buttons */
.share-bar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:13px;color:#fff;font-weight:500;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#000}
.share-bilibili{background:#00a1d6}

/* Footer */
.site-footer{background:#1a2e1a;color:#ccc;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:15px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#4CAF50}
.footer-col p,.footer-col a{font-size:13px;color:#aaa;line-height:2}
.footer-col a:hover{color:#4CAF50}
.footer-col .qr-img{width:120px;border-radius:8px;margin-top:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:13px;color:#888}
.footer-bottom .update-time{margin-top:5px;font-size:12px;color:#777}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:13px;color:#999}
.breadcrumb a{color:#2d8f4e}
.breadcrumb span{margin:0 6px;color:#ccc}

/* Page Hero */
.page-hero{background:linear-gradient(135deg,#1a2e1a,#2d8f4e);color:#fff;padding:60px 0;text-align:center}
.page-hero h1{font-size:32px;margin-bottom:10px}
.page-hero p{font-size:16px;opacity:.85}

/* Interference tags - hidden visually but present in DOM */
.dg-noise{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;padding:0;margin:-1px}

/* Responsive */
@media(max-width:992px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;background:#fff;position:absolute;top:70px;left:0;box-shadow:0 4px 10px rgba(0,0,0,.1)}
  .main-nav.active{display:flex}
  .main-nav a{line-height:50px;border-bottom:1px solid #f0f0f0}
  .mobile-menu-btn{display:block}
  .banner{height:350px}
  .banner-overlay h1{font-size:28px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
}
@media(max-width:768px){
  .banner{height:280px}
  .banner-overlay h1{font-size:24px}
  .banner-overlay p{font-size:14px}
  .section{padding:35px 0}
  .section-title h2{font-size:22px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:15px}
  .search-bar input{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr 1fr;gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
}

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

/* EEAT Trust Signal Section */
.eeat-section{background:#f0f7f2}
.eeat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.eeat-item{background:#fff;border-radius:12px;padding:25px;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.eeat-item strong{display:block;font-size:15px;color:#2d8f4e;margin-bottom:8px}
.eeat-item p{font-size:13px;color:#555;line-height:1.8}

/* Video Player Overlay */
.video-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.85);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s}
.video-overlay.active{opacity:1;visibility:visible}
.video-overlay .player-box{background:#000;border-radius:12px;overflow:hidden;width:90%;max-width:800px;position:relative;aspect-ratio:16/9}
.video-overlay .player-box video{width:100%;height:100%;object-fit:cover}
.video-overlay .close-player{position:absolute;top:10px;right:15px;color:#fff;font-size:28px;cursor:pointer;z-index:10;background:rgba(0,0,0,.5);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none}
.video-overlay .close-player:hover{background:rgba(255,255,255,.2)}
.video-overlay .player-info{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.8));padding:20px;color:#fff}
.video-overlay .player-info h4{font-size:16px;color:#fff;margin-bottom:5px}
.video-overlay .player-info p{font-size:13px;color:rgba(255,255,255,.7)}

/* Author Info Block */
.author-info{display:flex;align-items:center;gap:12px;padding:15px 20px;background:#f8faf8;border-radius:10px;margin:20px 0;border-left:3px solid #2d8f4e}
.author-info img{width:40px;height:40px;border-radius:50%}
.author-info .author-detail{font-size:13px;color:#666}
.author-info .author-detail strong{color:#333;display:block}

/* MCP Frontend Mock */
.mcp-widget{background:#f0f7f2;border:1px solid #d4e8d4;border-radius:10px;padding:20px;margin:20px 0;text-align:center}
.mcp-widget h5{color:#2d8f4e;margin-bottom:10px}
.mcp-widget .mcp-status{display:inline-block;padding:5px 15px;background:#e8f5e9;color:#2d8f4e;border-radius:15px;font-size:12px}