/* ============================================
   国产视频植物视频社区 - 全站样式表
   品牌：国产视频 | 域名：kpkhLh.cn
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#333;background:#faf8f5;line-height:1.8;overflow-x:hidden}
a{text-decoration:none;color:#2d6a4f;transition:color .3s}
a:hover{color:#1b4332}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;color:#1b4332;line-height:1.4}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-wrap{padding:60px 0}

/* === 顶部导航 === */
.site-header{background:linear-gradient(135deg,#1b4332 0%,#2d6a4f 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px 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{height:50px;width:auto}
.logo-wrap .brand-name{color:#d4a843;font-size:24px;font-weight:800;letter-spacing:2px}
.main-nav{display:flex;gap:0}
.main-nav a{color:#e8e0d0;padding:10px 16px;font-size:15px;font-weight:500;transition:all .3s;border-radius:4px}
.main-nav a:hover,.main-nav a.active{color:#d4a843;background:rgba(255,255,255,.1)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.nav-toggle span{display:block;width:25px;height:3px;background:#e8e0d0;border-radius:2px;transition:.3s}

/* === 搜索框 === */
.search-bar{background:linear-gradient(90deg,#2d6a4f,#40916c);padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;position:relative}
.search-form input{flex:1;padding:12px 20px;border:2px solid #d4a843;border-radius:25px 0 0 25px;font-size:15px;outline:none;background:#fff;color:#333}
.search-form input::placeholder{color:#999}
.search-form button{padding:12px 30px;background:#d4a843;color:#fff;border:2px solid #d4a843;border-radius:0 25px 25px 0;cursor:pointer;font-size:15px;font-weight:600;transition:background .3s}
.search-form button:hover{background:#b8922e}

/* === Banner === */
.hero-banner{position:relative;height:70vh;min-height:500px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-banner .banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(27,67,50,.7) 0%,rgba(27,67,50,.4) 50%,rgba(27,67,50,.8) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-content h1{font-size:48px;margin-bottom:15px;text-shadow:2px 2px 8px rgba(0,0,0,.5);color:#d4a843}
.hero-content h2{font-size:24px;margin-bottom:10px;font-weight:400;text-shadow:1px 1px 4px rgba(0,0,0,.5)}
.hero-content p{font-size:18px;line-height:1.8;margin-bottom:25px;text-shadow:1px 1px 3px rgba(0,0,0,.3)}
.hero-content .btn-group{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}

/* === 按钮 === */
.btn{display:inline-block;padding:12px 30px;border-radius:25px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-align:center}
.btn-primary{background:#d4a843;color:#fff}
.btn-primary:hover{background:#b8922e;color:#fff;transform:translateY(-2px);box-shadow:0 5px 15px rgba(212,168,67,.4)}
.btn-secondary{background:transparent;color:#d4a843;border:2px solid #d4a843}
.btn-secondary:hover{background:#d4a843;color:#fff}
.btn-outline{background:transparent;color:#2d6a4f;border:2px solid #2d6a4f}
.btn-outline:hover{background:#2d6a4f;color:#fff}

/* === 区块标题 === */
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:36px;color:#1b4332;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:"";display:block;width:60px;height:4px;background:#d4a843;margin:12px auto 0;border-radius:2px}
.section-title h3{font-size:20px;color:#52796f;margin-bottom:8px;font-weight:400}
.section-title p{font-size:16px;color:#666;max-width:700px;margin:0 auto}

/* === 视频卡片 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,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}
.video-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;cursor:pointer}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-thumb .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(212,168,67,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-thumb:hover .play-btn{opacity:1}
.play-btn::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-thumb .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-thumb .badge{position:absolute;top:8px;left:8px;background:#d4a843;color:#fff;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:600}
.video-info{padding:15px}
.video-info h4{font-size:16px;color:#1b4332;margin-bottom:8px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;gap:15px;font-size:13px;color:#888}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-tags span{background:#e8f5e9;color:#2d6a4f;padding:2px 10px;border-radius:12px;font-size:12px}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,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,.12)}
.expert-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 15px;border:4px solid #d4a843}
.expert-card h4{font-size:18px;color:#1b4332;margin-bottom:5px}
.expert-card .title{color:#d4a843;font-size:14px;margin-bottom:10px}
.expert-card p{font-size:14px;color:#666;margin-bottom:15px;line-height:1.6}
.expert-card .social-links{display:flex;justify-content:center;gap:10px}
.expert-card .social-links a{display:inline-flex;width:36px;height:36px;border-radius:50%;background:#e8f5e9;color:#2d6a4f;align-items:center;justify-content:center;transition:all .3s;font-size:14px}
.expert-card .social-links a:hover{background:#2d6a4f;color:#fff}

/* === 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}
.faq-item .faq-q{padding:18px 25px;font-size:16px;font-weight:600;color:#1b4332;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-item .faq-q:hover{background:#f0f7f4}
.faq-item .faq-q::after{content:"+";font-size:22px;color:#d4a843;font-weight:700;transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 25px;max-height:0;overflow:hidden;transition:all .3s;color:#555;line-height:1.8}
.faq-item.active .faq-a{padding:0 25px 18px;max-height:500px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.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";position:absolute;top:10px;left:15px;font-size:60px;color:#d4a843;opacity:.3;font-family:Georgia,serif;line-height:1}
.review-card .stars{color:#d4a843;font-size:16px;margin-bottom:10px;letter-spacing:2px}
.review-card p{font-size:14px;color:#555;line-height:1.8;margin-bottom:15px;padding-top:10px}
.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;color:#2d6a4f;font-weight:700;font-size:16px}
.review-card .reviewer .name{font-weight:600;color:#1b4332;font-size:14px}
.review-card .reviewer .date{font-size:12px;color:#999}

/* === 合作品牌墙 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{background:#fff;padding:20px 30px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);transition:all .3s;min-width:150px;text-align:center}
.brand-wall .brand-item:hover{transform:translateY(-3px);box-shadow:0 5px 20px rgba(0,0,0,.1)}
.brand-wall .brand-item span{font-size:18px;font-weight:700;color:#2d6a4f}

/* === 联系信息 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}
.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;color:#1b4332;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #e8f5e9}
.contact-card p{font-size:14px;color:#555;margin-bottom:8px;line-height:1.8}
.contact-card .highlight{color:#d4a843;font-weight:600}

/* === 分享按钮 === */
.share-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:14px;color:#fff;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-btn.wechat{background:#07c160}
.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00a1d6}

/* === 页脚 === */
.site-footer{background:linear-gradient(135deg,#1b4332 0%,#0d2818 100%);color:#c8d6c5;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}
.footer-col h4{color:#d4a843;font-size:18px;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:40px;height:3px;background:#d4a843;border-radius:2px}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:8px}
.footer-col a{color:#a8c5a0;font-size:14px;display:block;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#d4a843}
.footer-col .qr-wrap{display:flex;gap:15px;margin-top:10px}
.footer-col .qr-wrap img{width:120px;height:120px;border-radius:8px;border:2px solid rgba(212,168,67,.3)}
.footer-col .qr-label{font-size:12px;color:#a8c5a0;text-align:center;margin-top:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:#7a9a74}
.footer-bottom a{color:#d4a843}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:15px}
.footer-logo img{height:40px}
.footer-logo span{color:#d4a843;font-size:20px;font-weight:700}

/* === 面包屑 === */
.breadcrumb{padding:15px 0;font-size:14px;color:#888}
.breadcrumb a{color:#2d6a4f}
.breadcrumb span{margin:0 8px;color:#ccc}

/* === 内容区 === */
.content-section{background:#fff;border-radius:12px;padding:40px;margin-bottom:30px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.content-section h3{font-size:24px;color:#1b4332;margin-bottom:20px}
.content-section h4{font-size:20px;color:#2d6a4f;margin-bottom:15px}
.content-section p{margin-bottom:15px;color:#555;line-height:1.8}
.content-section ul{margin-bottom:15px}
.content-section ul li{padding:5px 0 5px 20px;position:relative;color:#555}
.content-section ul li::before{content:"●";position:absolute;left:0;color:#d4a843;font-size:10px;top:8px}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:15px 0}
.tag-cloud a{background:#f0f7f4;color:#2d6a4f;padding:5px 15px;border-radius:15px;font-size:13px;transition:all .3s}
.tag-cloud a:hover{background:#2d6a4f;color:#fff}

/* === 数据统计 === */
.stats-bar{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;padding:30px 0}
.stat-item{text-align:center}
.stat-item .num{font-size:36px;font-weight:800;color:#d4a843;display:block}
.stat-item .label{font-size:14px;color:#666;margin-top:5px}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:25px}
.howto-step{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.08);position:relative}
.howto-step .step-num{width:50px;height:50px;background:#d4a843;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin:0 auto 15px}
.howto-step h4{font-size:18px;color:#1b4332;margin-bottom:10px}
.howto-step p{font-size:14px;color:#666}

/* === MCP服务区 === */
.mcp-section{background:linear-gradient(135deg,#f0f7f4,#e8f5e9);border-radius:12px;padding:40px;margin:30px 0}
.mcp-section h3{color:#1b4332;text-align:center;margin-bottom:20px}
.mcp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:15px}
.mcp-item{background:#fff;border-radius:8px;padding:20px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.mcp-item .icon{font-size:32px;margin-bottom:10px}
.mcp-item h5{font-size:14px;color:#1b4332;margin-bottom:5px}
.mcp-item p{font-size:12px;color:#888}

/* === 干扰标签隐藏 === */
.itf-wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* === 响应式 === */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .nav-toggle{display:flex}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.active{display:flex}
  .main-nav a{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.05)}
  .hero-banner{height:50vh;min-height:350px}
  .hero-content h1{font-size:28px}
  .hero-content h2{font-size:18px}
  .hero-content p{font-size:15px}
  .section-title h2{font-size:26px}
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .stats-bar{gap:20px}
  .stat-item .num{font-size:28px}
  .content-section{padding:25px}
  .container{padding:0 15px}
  .section-wrap{padding:40px 0}
  .search-form{margin:0 15px}
}
@media(max-width:480px){
  .hero-content h1{font-size:24px}
  .btn{padding:10px 20px;font-size:14px}
  .video-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
}

/* === 懒加载 === */
img[loading="lazy"]{opacity:0;transition:opacity .5s}
img[loading="lazy"].loaded,img[loading="lazy"][src]{opacity:1}

/* === 页面内容区背景 === */
.page-hero{background:linear-gradient(135deg,#1b4332,#2d6a4f);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:36px;color:#d4a843;margin-bottom:10px}
.page-hero p{font-size:16px;color:#c8d6c5}

/* === 侧边栏推荐 === */
.sidebar-rec{background:#f0f7f4;border-radius:12px;padding:25px;margin-bottom:20px}
.sidebar-rec h4{font-size:16px;color:#1b4332;margin-bottom:15px;padding-bottom:8px;border-bottom:2px solid #d4a843}
.sidebar-rec .rec-item{display:flex;gap:10px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid #e0e0e0}
.sidebar-rec .rec-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.sidebar-rec .rec-item img{width:80px;height:50px;object-fit:cover;border-radius:6px}
.sidebar-rec .rec-item h5{font-size:13px;color:#333;line-height:1.4}
.sidebar-rec .rec-item .meta{font-size:11px;color:#999;margin-top:4px}

/* === 页脚信任链接 === */
.footer-links{text-align:center;padding:15px 0;border-top:1px solid rgba(255,255,255,.1);margin-top:20px}
.footer-links a{color:#a8c5a0;font-size:13px;margin:0 5px;transition:color .3s}
.footer-links a:hover{color:#d4a843}

/* === 专家成就标签 === */
.expert-achievements{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.expert-achievements span{background:#e8f5e9;color:#2d6a4f;padding:3px 10px;border-radius:12px;font-size:12px}

/* === 品牌合作墙 === */
.brand-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.brand-item{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:20px;text-align:center;transition:all .3s}
.brand-item:hover{border-color:#d4a843;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.brand-item span{color:#333;font-weight:600;font-size:14px}
@media(max-width:768px){
  .brand-wall{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .brand-wall{grid-template-columns:1fr}
}

/* === 作者信息模块 === */
.author-box{display:flex;align-items:center;gap:15px;background:#f0f7f4;padding:20px;border-radius:12px;margin:25px 0;border-left:4px solid #d4a843}
.author-box img{width:60px;height:60px;border-radius:50%;object-fit:cover}
.author-box .author-info h5{color:#1b4332;font-size:15px;margin-bottom:4px}
.author-box .author-info p{color:#666;font-size:13px;line-height:1.5}