/* 91植物视频社区 - 主样式表 */
/* 812762.cn */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--brand-primary:#1a0533;--brand-secondary:#0d7377;--brand-accent:#14ffec;--brand-purple:#6c3483;--brand-dark:#0a0a1a;--brand-light:#e8e8f0;--brand-green:#27ae60;--brand-gold:#f39c12;--text-primary:#e0e0e0;--text-secondary:#a0a0b0;--card-bg:rgba(26,5,51,0.85);--glass-bg:rgba(255,255,255,0.05);--border-color:rgba(255,255,255,0.1);--shadow:0 8px 32px rgba(0,0,0,0.3);--radius:12px;--transition:all 0.3s ease}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;background:var(--brand-dark);color:var(--text-primary);line-height:1.8;overflow-x:hidden}
a{color:var(--brand-accent);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--brand-gold);text-decoration:underline}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,h5,h6{color:#fff;font-weight:700;line-height:1.4;margin-bottom:0.5em}
h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.1rem}h6{font-size:1rem}
p{margin-bottom:1em;color:var(--text-secondary)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* 头部导航 */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(10,10,26,0.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);transition:var(--transition)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1400px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:50px;width:auto}
.logo-wrap .brand-name{font-size:1.5rem;font-weight:800;color:#fff;letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:10px 16px;color:var(--text-primary);font-size:0.95rem;font-weight:500;transition:var(--transition);position:relative;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:var(--brand-accent);text-decoration:none}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:2px;background:var(--brand-accent);transition:var(--transition);transform:translateX(-50%)}
.main-nav a:hover::after,.main-nav a.active::after{width:70%}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:8px}

/* 搜索框 */
.search-bar{background:rgba(26,5,51,0.6);padding:15px 0;border-bottom:1px solid var(--border-color);margin-top:70px}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%}
.search-box input{flex:1;padding:12px 20px;background:rgba(255,255,255,0.08);border:1px solid var(--border-color);border-radius:var(--radius) 0 0 var(--radius);color:#fff;font-size:1rem;outline:none;transition:var(--transition)}
.search-box input:focus{border-color:var(--brand-accent);background:rgba(255,255,255,0.12)}
.search-box input::placeholder{color:var(--text-secondary)}
.search-box button{padding:12px 24px;background:linear-gradient(135deg,var(--brand-purple),var(--brand-secondary));border:none;border-radius:0 var(--radius) var(--radius) 0;color:#fff;font-size:1rem;cursor:pointer;transition:var(--transition);white-space:nowrap}
.search-box button:hover{opacity:0.9}

/* Banner */
.hero-banner{position:relative;min-height:70vh;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;z-index:0}
.hero-banner .banner-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,26,0.3) 0%,rgba(10,10,26,0.7) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;padding:60px 20px;max-width:800px}
.hero-content h1{font-size:3rem;margin-bottom:0.3em;background:linear-gradient(135deg,#fff,var(--brand-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content h2{font-size:1.5rem;color:var(--text-secondary);font-weight:400;margin-bottom:1em}
.hero-content p{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto 1.5em}
.btn-primary{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,var(--brand-purple),var(--brand-secondary));color:#fff;border-radius:50px;font-size:1rem;font-weight:600;transition:var(--transition);border:none;cursor:pointer;text-decoration:none}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(108,52,131,0.4);text-decoration:none;color:#fff}
.btn-outline{display:inline-block;padding:12px 30px;border:2px solid var(--brand-accent);color:var(--brand-accent);border-radius:50px;font-size:0.95rem;font-weight:600;transition:var(--transition);text-decoration:none;margin-left:15px}
.btn-outline:hover{background:var(--brand-accent);color:var(--brand-dark);text-decoration:none}

/* 通用区块 */
.section{padding:80px 0}
.section-dark{background:var(--brand-dark)}
.section-alt{background:linear-gradient(180deg,rgba(26,5,51,0.3),rgba(10,10,26,1))}
.section-header{text-align:center;margin-bottom:50px}
.section-header h2{font-size:2.2rem;margin-bottom:0.3em}
.section-header h3{font-size:1.1rem;color:var(--text-secondary);font-weight:400}
.section-header .divider{width:60px;height:3px;background:linear-gradient(90deg,var(--brand-purple),var(--brand-accent));margin:15px auto 0;border-radius:2px}

/* 视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:25px}
.video-card{background:var(--card-bg);border-radius:var(--radius);overflow:hidden;transition:var(--transition);border:1px solid var(--border-color);position:relative}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--brand-purple)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img,.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.video-card:hover .video-thumb img,.video-card:hover .video-thumb video{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(108,52,131,0.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition);cursor:pointer;z-index:3}
.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:hover .play-btn{opacity:1}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:0.8rem;z-index:3}
.video-info{padding:15px}
.video-info h4{font-size:1rem;margin-bottom:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .meta{display:flex;gap:15px;color:var(--text-secondary);font-size:0.85rem;flex-wrap:wrap}
.video-info .meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.video-tags span{padding:2px 10px;background:rgba(108,52,131,0.3);border-radius:20px;font-size:0.75rem;color:var(--brand-accent)}

/* 模块卡片 */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.module-card{background:var(--card-bg);border-radius:var(--radius);padding:30px;border:1px solid var(--border-color);transition:var(--transition);text-align:center}
.module-card:hover{transform:translateY(-3px);border-color:var(--brand-purple);box-shadow:var(--shadow)}
.module-card .icon{font-size:2.5rem;margin-bottom:15px}
.module-card h4{margin-bottom:10px}
.module-card p{font-size:0.9rem;color:var(--text-secondary)}

/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.expert-card{background:var(--card-bg);border-radius:var(--radius);padding:25px;border:1px solid var(--border-color);text-align:center;transition:var(--transition)}
.expert-card:hover{border-color:var(--brand-accent);box-shadow:var(--shadow)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 15px;background:linear-gradient(135deg,var(--brand-purple),var(--brand-secondary));display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff;overflow:hidden}
.expert-card h4{margin-bottom:5px}
.expert-card .role{color:var(--brand-accent);font-size:0.9rem;margin-bottom:10px}
.expert-card .bio{font-size:0.85rem;color:var(--text-secondary);margin-bottom:15px}
.expert-card .credentials{font-size:0.8rem;color:var(--brand-gold);margin-bottom:10px;font-style:italic}
.expert-links{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.expert-links a{padding:6px 16px;border:1px solid var(--brand-accent);border-radius:20px;font-size:0.8rem;color:var(--brand-accent);transition:var(--transition)}
.expert-links a:hover{background:var(--brand-accent);color:var(--brand-dark);text-decoration:none}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card-bg);border-radius:var(--radius);margin-bottom:12px;border:1px solid var(--border-color);overflow:hidden}
.faq-question{padding:18px 25px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#fff;transition:var(--transition)}
.faq-question:hover{color:var(--brand-accent)}
.faq-question .arrow{transition:var(--transition);font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:max-height 0.3s ease,padding 0.3s ease}
.faq-item.active .faq-answer{max-height:300px;padding:0 25px 18px}
.faq-answer p{color:var(--text-secondary);font-size:0.95rem}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.review-card{background:var(--card-bg);border-radius:var(--radius);padding:25px;border:1px solid var(--border-color);transition:var(--transition)}
.review-card:hover{border-color:var(--brand-gold)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:45px;height:45px;border-radius:50%;background:linear-gradient(135deg,var(--brand-purple),var(--brand-green));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;color:#fff}
.review-date{font-size:0.8rem;color:var(--text-secondary)}
.review-stars{color:var(--brand-gold);margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:0.9rem;color:var(--text-secondary);line-height:1.7}

/* 合作品牌 */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-item{padding:15px 30px;background:var(--glass-bg);border-radius:var(--radius);border:1px solid var(--border-color);font-size:1.1rem;font-weight:600;color:var(--text-secondary);transition:var(--transition)}
.partner-item:hover{border-color:var(--brand-accent);color:#fff}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}
.contact-card{background:var(--card-bg);border-radius:var(--radius);padding:30px;border:1px solid var(--border-color)}
.contact-card h4{margin-bottom:15px;color:var(--brand-accent)}
.contact-info-item{display:flex;gap:10px;margin-bottom:10px;color:var(--text-secondary);font-size:0.95rem}

/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.share-btn{padding:10px 20px;border-radius:25px;font-size:0.9rem;font-weight:500;transition:var(--transition);border:1px solid var(--border-color);color:#fff;cursor:pointer;background:var(--glass-bg)}
.share-btn:hover{transform:translateY(-2px);border-color:var(--brand-accent)}
.share-btn.wechat{border-color:#07c160}.share-btn.weibo{border-color:#e6162d}
.share-btn.douyin{border-color:#fe2c55}.share-btn.bilibili{border-color:#00a1d6}

/* 页脚 */
.site-footer{background:rgba(5,5,15,0.95);border-top:1px solid var(--border-color);padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h5{color:#fff;margin-bottom:15px;font-size:1rem}
.footer-col p,.footer-col a{color:var(--text-secondary);font-size:0.9rem;display:block;margin-bottom:8px}
.footer-col a:hover{color:var(--brand-accent)}
.footer-qr{display:flex;gap:20px;justify-content:center;margin:30px 0}
.footer-qr .qr-item{text-align:center}
.footer-qr .qr-item img{width:120px;height:120px;border-radius:8px;margin-bottom:8px}
.footer-qr .qr-item span{font-size:0.85rem;color:var(--text-secondary)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border-color);font-size:0.85rem;color:var(--text-secondary)}

/* 面包屑 */
.breadcrumb{padding:15px 0;font-size:0.9rem;color:var(--text-secondary)}
.breadcrumb a{color:var(--brand-accent)}
.breadcrumb span{margin:0 8px;color:var(--text-secondary)}

/* How-To指南 */
.howto-steps{max-width:800px;margin:0 auto}
.howto-step{display:flex;gap:20px;margin-bottom:30px;align-items:flex-start}
.step-number{width:50px;height:50px;min-width:50px;border-radius:50%;background:linear-gradient(135deg,var(--brand-purple),var(--brand-secondary));display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;color:#fff}
.step-number-gold{background:var(--brand-gold)}
.step-content h4{margin-bottom:5px}
.step-content p{font-size:0.95rem;color:var(--text-secondary)}

/* MCP区块 */
.mcp-section{background:var(--card-bg);border-radius:var(--radius);padding:25px;border:1px solid var(--border-color);margin-top:30px}
.mcp-section pre{background:rgba(0,0,0,0.5);padding:15px;border-radius:8px;overflow-x:auto;font-size:0.85rem;color:var(--brand-accent);line-height:1.6}

/* 内页通用 */
.page-hero{padding:120px 0 60px;text-align:center;background:linear-gradient(180deg,rgba(26,5,51,0.5),var(--brand-dark));margin-top:70px}
.page-hero p{color:var(--text-secondary);max-width:600px;margin:0 auto}
.page-hero-bg{background-size:cover;background-position:center}
.content-section{padding:60px 0}

/* EEAT信任标记 */
.trust-badges{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.trust-badge{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--glass-bg);border:1px solid var(--border-color);border-radius:20px;font-size:0.85rem;color:var(--text-secondary)}
.trust-badge .badge-icon{font-size:1.2rem}

/* 懒加载 */
.lazy{opacity:0;transition:opacity 0.5s ease}
.lazy.loaded{opacity:1}

/* 响应式 */
@media(max-width:992px){
  .main-nav{display:none;position:absolute;top:100%;left:0;width:100%;background:rgba(10,10,26,0.98);flex-direction:column;padding:20px 0;border-top:1px solid var(--border-color)}
  .main-nav.active{display:flex}
  .main-nav a{padding:12px 30px;width:100%}
  .nav-toggle{display:block}
  .hero-content h1{font-size:2rem}
  .hero-banner{min-height:50vh}
  h1{font-size:2rem}h2{font-size:1.6rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .header-inner{padding:8px 15px}
  .logo-wrap .brand-name{font-size:1.2rem}
  .hero-content h1{font-size:1.6rem}
  .hero-content h2{font-size:1.1rem}
  .section{padding:50px 0}
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn-outline{margin-left:0;margin-top:10px}
  .search-box{flex-direction:column}
  .search-box input{border-radius:var(--radius) var(--radius) 0 0}
  .search-box button{border-radius:0 0 var(--radius) var(--radius)}
}

/* 干扰标签隐藏 - 保持不破坏布局 */
.noise-wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}