/* ============================================
   91植物视频社区 - 原创四合院风格CSS
   域名: tzkmo.cn | 品牌: 91
   配色: 墨绿 #1a3c2a / 翡翠绿 #2d8b56 / 金色 #c9a84c / 象牙白 #f5f0e6
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#2c2c2c;background:#f5f0e6;line-height:1.7}
a{color:#2d8b56;text-decoration:none;transition:color .25s}
a:hover{color:#c9a84c}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

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

/* === Header === */
.zw-header{background:linear-gradient(135deg,#1a3c2a 0%,#0d2618 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.3)}
.zw-header .zw-container{display:flex;align-items:center;justify-content:space-between;height:68px}
.zw-logo img{height:48px;width:auto}
.zw-nav{display:flex;gap:6px}
.zw-nav a{color:#d4cfc0;padding:8px 16px;border-radius:6px;font-size:.95rem;transition:all .25s}
.zw-nav a:hover,.zw-nav-active{color:#fff!important;background:rgba(45,139,86,.45)}
.zw-mobile-menu{display:none;background:none;border:none;color:#d4cfc0;font-size:1.6rem;cursor:pointer}

/* === 搜索栏 === */
.zw-search-bar{background:#1a3c2a;padding:12px 0;border-bottom:1px solid rgba(201,168,76,.2)}
.zw-search-wrap{display:flex;max-width:600px;margin:0 auto}
.zw-search-input{flex:1;padding:10px 18px;border:2px solid #2d8b56;border-right:none;border-radius:8px 0 0 8px;background:#0d2618;color:#f5f0e6;font-size:.95rem;outline:none}
.zw-search-input::placeholder{color:#7a9a88}
.zw-search-input:focus{border-color:#c9a84c}
.zw-search-btn{padding:10px 28px;background:linear-gradient(135deg,#2d8b56,#1e6b3e);color:#fff;border:2px solid #2d8b56;border-radius:0 8px 8px 0;cursor:pointer;font-size:.95rem;transition:all .25s}
.zw-search-btn:hover{background:linear-gradient(135deg,#c9a84c,#a88a3c)}

/* === Banner === */
.zw-banner{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden}
.zw-banner-bg{position:absolute;inset:0;z-index:0}
.zw-banner-bg img{width:100%;height:100%;object-fit:cover}
.zw-banner-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,60,42,.92) 0%,rgba(13,38,24,.75) 50%,rgba(26,60,42,.6) 100%)}
.zw-banner-content{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:60px 20px;color:#f5f0e6}
.zw-banner-content h1{font-size:2.6rem;font-weight:800;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.4);background:linear-gradient(135deg,#f5f0e6,#c9a84c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.zw-banner-subtitle{font-size:1.15rem;color:#c9a84c;margin-bottom:16px;letter-spacing:2px}
.zw-banner-desc{font-size:1rem;max-width:680px;line-height:1.8;color:#d4cfc0;margin-bottom:28px}
.zw-banner-stats{display:flex;gap:32px;margin-bottom:32px;flex-wrap:wrap}
.zw-stat-item{text-align:center}
.zw-stat-item strong{display:block;font-size:1.8rem;color:#c9a84c;font-weight:700}
.zw-stat-item span{font-size:.85rem;color:#a0b8a8}
.zw-btn-primary{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#2d8b56,#1e6b3e);color:#fff;border-radius:8px;font-size:1rem;font-weight:600;transition:all .3s;margin-right:12px}
.zw-btn-primary:hover{background:linear-gradient(135deg,#c9a84c,#a88a3c);color:#1a3c2a;transform:translateY(-2px);box-shadow:0 6px 20px rgba(201,168,76,.3)}
.zw-btn-ghost{display:inline-block;padding:12px 32px;border:2px solid #c9a84c;color:#c9a84c;border-radius:8px;font-size:1rem;transition:all .3s}
.zw-btn-ghost:hover{background:#c9a84c;color:#1a3c2a}

/* === 通用Section === */
.zw-section{padding:60px 0}
.zw-section-alt{background:#eae5d8}
.zw-section-title{font-size:1.9rem;font-weight:700;text-align:center;margin-bottom:12px;color:#1a3c2a;position:relative;padding-bottom:16px}
.zw-section-title::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#2d8b56,#c9a84c);border-radius:2px}
.zw-section-desc{text-align:center;color:#5a6b5e;max-width:750px;margin:0 auto 40px;font-size:.95rem;line-height:1.8}

/* === 视频卡片网格 === */
.zw-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.zw-video-card{background:#fff;border-radius:12px;overflow:hidden;transition:all .3s;box-shadow:0 2px 12px rgba(26,60,42,.08);border:1px solid rgba(45,139,86,.1)}
.zw-video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(26,60,42,.15)}
.zw-video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;cursor:pointer}
.zw-video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.zw-video-card:hover .zw-video-thumb img{transform:scale(1.08)}
.zw-video-tag{position:absolute;top:12px;left:12px;background:linear-gradient(135deg,#2d8b56,#1e6b3e);color:#fff;padding:3px 12px;border-radius:4px;font-size:.78rem;font-weight:600}
.zw-video-duration{position:absolute;bottom:12px;right:12px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.78rem}
.zw-play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(26,60,42,.35);opacity:0;transition:opacity .3s}
.zw-video-thumb:hover .zw-play-overlay,.zw-ent-card:hover .zw-play-overlay{opacity:1}
.zw-play-btn{width:56px;height:56px;background:rgba(201,168,76,.9);border-radius:50%;position:relative}
.zw-play-btn::after{content:'';position:absolute;top:50%;left:55%;transform:translate(-50%,-50%);border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #1a3c2a}
.zw-video-card h3{padding:14px 16px 4px;font-size:1rem;color:#1a3c2a;font-weight:600;line-height:1.4}
.zw-video-meta{padding:0 16px;font-size:.82rem;color:#7a9a88}
.zw-video-brief{padding:4px 16px 16px;font-size:.85rem;color:#5a6b5e;line-height:1.5}

/* === 娱乐专区 === */
.zw-ent-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.zw-ent-card{position:relative;border-radius:12px;overflow:hidden;cursor:pointer;min-height:200px}
.zw-ent-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.zw-ent-card:hover img{transform:scale(1.06)}
.zw-ent-large{grid-column:span 2}
.zw-ent-info{position:absolute;bottom:0;left:0;right:0;padding:20px;background:linear-gradient(transparent,rgba(26,60,42,.9));color:#f5f0e6}
.zw-ent-info h3{font-size:1.1rem;margin-bottom:6px}
.zw-ent-info p{font-size:.85rem;color:#d4cfc0;margin-bottom:4px}

/* === AI赋能 === */
.zw-ai-showcase{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.zw-ai-image{border-radius:12px;overflow:hidden;box-shadow:0 8px 30px rgba(26,60,42,.15)}
.zw-ai-image img{width:100%;height:auto}
.zw-ai-features{display:flex;flex-direction:column;gap:24px}
.zw-ai-item{display:flex;gap:16px;align-items:flex-start}
.zw-ai-icon{font-size:2rem;min-width:48px;text-align:center}
.zw-ai-text h4{font-size:1.05rem;color:#1a3c2a;margin-bottom:6px;font-weight:600}
.zw-ai-text p{font-size:.9rem;color:#5a6b5e;line-height:1.7}

/* === 社区频道 === */
.zw-community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.zw-comm-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;transition:all .3s;border:1px solid rgba(45,139,86,.1)}
.zw-comm-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(26,60,42,.12);border-color:#2d8b56}
.zw-comm-icon{font-size:2.4rem;margin-bottom:12px}
.zw-comm-card h3,.zw-comm-card h4{font-size:1.05rem;color:#1a3c2a;margin-bottom:8px}
.zw-comm-count{font-size:.85rem;color:#2d8b56;font-weight:600;margin-bottom:8px}
.zw-comm-topics{font-size:.82rem;color:#7a9a88;line-height:1.6}

/* === 专家展示 === */
.zw-expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.zw-expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;transition:all .3s;border:1px solid rgba(45,139,86,.1)}
.zw-expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(26,60,42,.12)}
.zw-expert-avatar{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid #c9a84c}
.zw-expert-card h4{font-size:1rem;color:#1a3c2a;margin-bottom:6px}
.zw-expert-tags{font-size:.78rem;color:#2d8b56;margin-bottom:10px}
.zw-expert-card p{font-size:.85rem;color:#5a6b5e;line-height:1.6;margin-bottom:12px}
.zw-expert-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.zw-btn-sm{display:inline-block;padding:6px 16px;background:#2d8b56;color:#fff;border-radius:6px;font-size:.82rem;transition:all .25s}
.zw-btn-sm:hover{background:#c9a84c;color:#1a3c2a}
.zw-btn-outline{background:transparent;border:1px solid #2d8b56;color:#2d8b56}
.zw-btn-outline:hover{background:#2d8b56;color:#fff}

/* === 合作品牌 === */
.zw-partner-grid{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.zw-partner-item{width:120px;height:120px;border-radius:12px;overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center;transition:all .3s;border:1px solid rgba(45,139,86,.1)}
.zw-partner-item:hover{transform:scale(1.08);box-shadow:0 6px 20px rgba(26,60,42,.12)}
.zw-partner-item img{width:100%;height:100%;object-fit:cover}

/* === How-To步骤 === */
.zw-howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.zw-step{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;position:relative;border:1px solid rgba(45,139,86,.1)}
.zw-step-num{width:48px;height:48px;background:linear-gradient(135deg,#2d8b56,#c9a84c);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 16px}
.zw-step h4{font-size:1rem;color:#1a3c2a;margin-bottom:8px}
.zw-step p{font-size:.85rem;color:#5a6b5e;line-height:1.6}

/* === FAQ === */
.zw-faq-list{max-width:800px;margin:0 auto}
.zw-faq-item{background:#fff;border-radius:10px;margin-bottom:12px;overflow:hidden;border:1px solid rgba(45,139,86,.1)}
.zw-faq-question{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;cursor:pointer;transition:background .25s}
.zw-faq-question:hover{background:rgba(45,139,86,.05)}
.zw-faq-question h4{font-size:.95rem;color:#1a3c2a;font-weight:600}
.zw-faq-toggle{font-size:1.4rem;color:#2d8b56;transition:transform .3s;font-weight:300}
.zw-faq-item.active .zw-faq-toggle{transform:rotate(45deg)}
.zw-faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.zw-faq-item.active .zw-faq-answer{max-height:300px}
.zw-faq-answer p{padding:0 20px 16px;font-size:.9rem;color:#5a6b5e;line-height:1.8}

/* === 评论 === */
.zw-review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.zw-review-card{background:#fff;border-radius:12px;padding:24px;border:1px solid rgba(45,139,86,.1);transition:all .3s}
.zw-review-card:hover{box-shadow:0 6px 24px rgba(26,60,42,.1)}
.zw-review-stars{color:#c9a84c;font-size:1.1rem;margin-bottom:12px}
.zw-review-text{font-size:.9rem;color:#3a4a3e;line-height:1.7;margin-bottom:12px;font-style:italic}
.zw-review-author{font-size:.82rem;color:#7a9a88;font-weight:600}

/* === 分享 === */
.zw-share-grid{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.zw-share-btn{padding:12px 28px;border-radius:8px;color:#fff;font-size:.9rem;transition:all .25s}
.zw-share-wechat{background:#07c160}
.zw-share-weibo{background:#e6162d}
.zw-share-douyin{background:#161823}
.zw-share-bilibili{background:#00a1d6}
.zw-share-btn:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.2);color:#fff}

/* === 联系 === */
.zw-contact-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.zw-contact-item{margin-bottom:16px}
.zw-contact-item h5{font-size:.9rem;color:#2d8b56;margin-bottom:4px}
.zw-contact-item p{font-size:.9rem;color:#5a6b5e}
.zw-contact-qrcodes{display:flex;gap:20px;justify-content:center}
.zw-qr-item{text-align:center}
.zw-qr-item img{border-radius:8px;border:2px solid #e0dbd0}
.zw-qr-item p{margin-top:8px;font-size:.82rem;color:#7a9a88}

/* === MCP服务 === */
.zw-mcp-box{display:flex;gap:12px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.zw-mcp-btn{padding:10px 24px;background:linear-gradient(135deg,#1a3c2a,#2d8b56);color:#c9a84c;border:1px solid #2d8b56;border-radius:8px;cursor:pointer;font-size:.9rem;transition:all .25s}
.zw-mcp-btn:hover{background:linear-gradient(135deg,#c9a84c,#a88a3c);color:#1a3c2a}

/* === 视频弹窗 === */
.zw-modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;align-items:center;justify-content:center}
.zw-modal.active{display:flex}
.zw-modal-content{background:#1a3c2a;border-radius:16px;max-width:720px;width:90%;overflow:hidden}
.zw-modal-close{position:absolute;top:16px;right:20px;color:#c9a84c;font-size:2rem;cursor:pointer;z-index:1}
.zw-modal-player{aspect-ratio:16/9;background:#0d2618;display:flex;align-items:center;justify-content:center}
.zw-modal-placeholder{text-align:center;color:#7a9a88}
.zw-play-btn-large{width:80px;height:80px;background:rgba(201,168,76,.9);border-radius:50%;margin:0 auto 16px;position:relative}
.zw-play-btn-large::after{content:'';position:absolute;top:50%;left:55%;transform:translate(-50%,-50%);border-style:solid;border-width:14px 0 14px 24px;border-color:transparent transparent transparent #1a3c2a}
.zw-modal-title{padding:16px 20px;font-size:1.05rem;color:#f5f0e6}

/* === 面包屑 === */
.zw-breadcrumb{background:#eae5d8;padding:12px 0;border-bottom:1px solid #d4cfc0}
.zw-breadcrumb a{color:#2d8b56;font-size:.85rem}
.zw-breadcrumb span{color:#7a9a88;font-size:.85rem}

/* === 关于页 === */
.zw-about-content{max-width:800px;margin:0 auto}
.zw-about-block{margin-bottom:36px}
.zw-about-block h2{font-size:1.4rem;color:#1a3c2a;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #c9a84c}
.zw-about-block p{font-size:.95rem;color:#3a4a3e;line-height:1.9;margin-bottom:10px}

/* === 筛选栏 === */
.zw-filter-bar{display:flex;align-items:center;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.zw-filter-label{font-size:.9rem;color:#5a6b5e;font-weight:600}
.zw-filter-tag{padding:6px 16px;border-radius:20px;font-size:.85rem;cursor:pointer;background:#fff;color:#5a6b5e;border:1px solid #d4cfc0;transition:all .25s}
.zw-filter-tag:hover,.zw-filter-active{background:#2d8b56;color:#fff;border-color:#2d8b56}

/* === Footer === */
.zw-footer{background:linear-gradient(135deg,#0d2618 0%,#1a3c2a 100%);color:#a0b8a8;padding:48px 0 0}
.zw-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(201,168,76,.15)}
.zw-footer-col h5{color:#c9a84c;font-size:.95rem;margin-bottom:14px}
.zw-footer-col a{display:block;color:#7a9a88;font-size:.85rem;margin-bottom:8px;transition:color .25s}
.zw-footer-col a:hover{color:#c9a84c}
.zw-footer-col p{font-size:.82rem;color:#5a7a68;margin-bottom:6px}
.zw-footer-brand img{height:40px;width:auto;margin-bottom:12px}
.zw-footer-brand p{font-size:.85rem;color:#7a9a88;line-height:1.6}
.zw-footer-bottom{padding:20px 0;text-align:center}
.zw-footer-bottom p{font-size:.82rem;color:#5a7a68;margin-bottom:4px}

/* === 响应式 === */
@media(max-width:1024px){
  .zw-video-grid,.zw-community-grid,.zw-review-grid{grid-template-columns:repeat(2,1fr)}
  .zw-expert-grid{grid-template-columns:repeat(2,1fr)}
  .zw-howto-steps{grid-template-columns:repeat(2,1fr)}
  .zw-footer-grid{grid-template-columns:1fr 1fr}
  .zw-ai-showcase{grid-template-columns:1fr}
}
@media(max-width:768px){
  .zw-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#1a3c2a;flex-direction:column;padding:16px;gap:4px;box-shadow:0 8px 24px rgba(0,0,0,.3)}
  .zw-nav.active{display:flex}
  .zw-mobile-menu{display:block}
  .zw-banner-content h1{font-size:1.8rem}
  .zw-banner-stats{gap:16px}
  .zw-stat-item strong{font-size:1.3rem}
  .zw-video-grid,.zw-community-grid,.zw-review-grid,.zw-expert-grid,.zw-howto-steps{grid-template-columns:1fr}
  .zw-ent-grid{grid-template-columns:1fr}
  .zw-ent-large{grid-column:span 1}
  .zw-contact-grid{grid-template-columns:1fr}
  .zw-footer-grid{grid-template-columns:1fr}
  .zw-section{padding:40px 0}
  .zw-section-title{font-size:1.5rem}
}
@media(max-width:480px){
  .zw-banner-content h1{font-size:1.4rem}
  .zw-banner-stats{flex-direction:column;gap:12px;align-items:flex-start}
  .zw-btn-primary,.zw-btn-ghost{display:block;text-align:center;margin-bottom:10px}
  .zw-partner-grid{gap:16px}
  .zw-partner-item{width:80px;height:80px}
}