/* ============================================
   抖阴 - 植物视频社区 原创样式
   配色：翡翠绿 #0d6b3d / 金蝶黄 #c9a227 / 象牙白 #faf8f2 / 墨绿 #0a2e1a / 暖棕 #5c3d2e
   ============================================ */
*{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:#2d2d2d;background:#faf8f2;line-height:1.7}
a{color:#0d6b3d;text-decoration:none;transition:color .2s}
a:hover{color:#c9a227}
img{max-width:100%;height:auto;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* 顶部通知条 */
.topbar{background:linear-gradient(135deg,#0a2e1a 0%,#0d6b3d 100%);color:#e8e4d9;font-size:13px;padding:6px 0;text-align:center;letter-spacing:.5px}
.topbar a{color:#c9a227}

/* 导航栏 */
.navbar{background:#fff;border-bottom:2px solid #0d6b3d;position:sticky;top:0;z-index:999;box-shadow:0 2px 12px rgba(10,46,26,.08)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:#0d6b3d}
.brand img{width:40px;height:40px;border-radius:8px}
.nav-links{display:flex;gap:24px;list-style:none;font-size:15px;font-weight:500}
.nav-links a{color:#2d2d2d;padding:6px 0;border-bottom:2px solid transparent;transition:all .25s}
.nav-links a:hover,.nav-links a.active{color:#0d6b3d;border-bottom-color:#c9a227}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:#0d6b3d}

/* 搜索栏 */
.search-bar{background:#f0ede4;padding:12px 0;border-bottom:1px solid #e0ddd4}
.search-bar form{display:flex;max-width:560px;margin:0 auto}
.search-bar input{flex:1;padding:10px 16px;border:2px solid #0d6b3d;border-right:none;border-radius:8px 0 0 8px;font-size:14px;background:#fff;outline:none}
.search-bar input:focus{border-color:#c9a227}
.search-bar button{padding:10px 24px;background:#0d6b3d;color:#fff;border:2px solid #0d6b3d;border-radius:0 8px 8px 0;cursor:pointer;font-size:14px;font-weight:600;transition:background .2s}
.search-bar button:hover{background:#095a32}

/* Hero Banner */
.hero{position:relative;height:480px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:700px;padding:0 20px}
.hero-content h1{font-size:42px;font-weight:800;margin-bottom:12px;text-shadow:0 3px 16px rgba(0,0,0,.5)}
.hero-content h2{font-size:20px;font-weight:400;margin-bottom:20px;opacity:.92;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.hero-content p{font-size:15px;opacity:.85;line-height:1.8}

/* 通用板块 */
.section{padding:56px 0}
.section-alt{background:#f0ede4}
.section-dark{background:linear-gradient(135deg,#0a2e1a,#0d6b3d);color:#fff}
.section-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:8px;color:#0a2e1a}
.section-dark .section-title{color:#c9a227}
.section-sub{text-align:center;font-size:14px;color:#6b6b6b;margin-bottom:36px}
.section-dark .section-sub{color:#c9c9c9}

/* 视频卡片网格 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(10,46,26,.08);transition:transform .25s,box-shadow .25s;cursor:pointer}
.video-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(10,46,26,.15)}
.video-thumb{position:relative;padding-top:56.25%;background:#e0ddd4;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);width:56px;height:56px;background:rgba(13,107,61,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s}
.play-btn::after{content:"";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;transform:translate(-50%,-50%) scale(1)}
.video-info{padding:14px 16px}
.video-info h3{font-size:15px;font-weight:600;margin-bottom:6px;color:#0a2e1a;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:12px;color:#888}
.video-tag{display:inline-block;background:#e8f5e9;color:#0d6b3d;font-size:11px;padding:2px 8px;border-radius:4px;margin-top:6px}

/* 模块卡片 */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.module-card{background:#fff;border-radius:12px;padding:28px 22px;text-align:center;border:1px solid #e0ddd4;transition:all .25s}
.module-card:hover{border-color:#0d6b3d;box-shadow:0 6px 20px rgba(13,107,61,.1)}
.module-icon{font-size:36px;margin-bottom:12px}
.module-card h4{font-size:16px;font-weight:600;color:#0a2e1a;margin-bottom:8px}
.module-card p{font-size:13px;color:#666;line-height:1.6}

/* 专家展示 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.expert-card{background:#fff;border-radius:12px;padding:24px;text-align:center;border:1px solid #e0ddd4;transition:all .25s}
.expert-card:hover{border-color:#c9a227;box-shadow:0 6px 20px rgba(201,162,39,.12)}
.expert-avatar{width:72px;height:72px;border-radius:50%;background:#e8f5e9;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:28px}
.expert-card h4{font-size:15px;font-weight:600;color:#0a2e1a;margin-bottom:4px}
.expert-card .role{font-size:12px;color:#0d6b3d;margin-bottom:8px}
.expert-card p{font-size:12px;color:#888;line-height:1.5}
.expert-btn{display:inline-block;margin-top:10px;padding:6px 16px;font-size:12px;border:1px solid #0d6b3d;color:#0d6b3d;border-radius:6px;transition:all .2s}
.expert-btn:hover{background:#0d6b3d;color:#fff}

/* 品牌墙 */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:20px;margin-top:20px}
.brand-item{background:#fff;border:1px solid #e0ddd4;border-radius:10px;padding:16px 24px;font-size:14px;font-weight:500;color:#5c3d2e;transition:all .2s}
.brand-item:hover{border-color:#c9a227;color:#c9a227}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid #e0ddd4;padding:18px 0}
.faq-q{font-size:15px;font-weight:600;color:#0a2e1a;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";font-size:20px;color:#0d6b3d;transition:transform .2s}
.faq-q.open::after{transform:rotate(45deg)}
.faq-a{font-size:14px;color:#555;padding-top:10px;display:none;line-height:1.7}
.faq-a.show{display:block}

/* 评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:#fff;border-radius:12px;padding:22px;border:1px solid #e0ddd4}
.review-stars{color:#c9a227;font-size:14px;margin-bottom:8px}
.review-card p{font-size:13px;color:#555;line-height:1.6;margin-bottom:10px}
.review-author{font-size:12px;color:#888;font-weight:500}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:24px;border:1px solid #e0ddd4;text-align:center}
.contact-card h4{font-size:16px;color:#0a2e1a;margin-bottom:12px}
.contact-card p,.contact-card li{font-size:13px;color:#555;line-height:1.8}
.contact-card ul{list-style:none}
.contact-card img{margin:0 auto;border-radius:8px}

/* How-To */
.howto-steps{max-width:680px;margin:0 auto;counter-reset:step}
.howto-step{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start}
.step-num{flex-shrink:0;width:40px;height:40px;background:#0d6b3d;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.step-content h4{font-size:15px;font-weight:600;color:#0a2e1a;margin-bottom:4px}
.step-content p{font-size:13px;color:#666}

/* 分享按钮 */
.share-bar{display:flex;justify-content:center;gap:12px;margin-top:20px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;font-size:13px;color:#fff;font-weight:500;transition:opacity .2s}
.share-btn:hover{opacity:.85;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* 页脚 */
.footer{background:#0a2e1a;color:#c9c9c9;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:32px}
.footer h4{color:#c9a227;font-size:15px;margin-bottom:14px}
.footer p,.footer li{font-size:13px;line-height:1.8}
.footer ul{list-style:none}
.footer a{color:#c9c9c9;transition:color .2s}
.footer a:hover{color:#c9a227}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:12px;color:#888}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{width:36px;height:36px;border-radius:6px}
.footer-logo span{font-size:18px;font-weight:700;color:#fff}

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

/* 面包屑 */
.breadcrumb{padding:12px 0;font-size:13px;color:#888}
.breadcrumb a{color:#0d6b3d}
.breadcrumb span{margin:0 6px;color:#ccc}

/* 滚动通知 */
.notice-bar{background:#fffbe6;border-bottom:1px solid #f0e6b8;padding:8px 0;overflow:hidden}
.notice-inner{display:flex;align-items:center;gap:10px;animation:scrollNotice 20s linear infinite;white-space:nowrap}
.notice-tag{background:#c9a227;color:#fff;font-size:11px;padding:2px 8px;border-radius:4px;flex-shrink:0}
.notice-inner span{font-size:13px;color:#5c3d2e}
@keyframes scrollNotice{0%{transform:translateX(100%)}100%{transform:translateX(-200%)}}

/* 响应式 */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;border-bottom:2px solid #0d6b3d;box-shadow:0 8px 20px rgba(0,0,0,.1)}
  .nav-links.show{display:flex}
  .nav-toggle{display:block}
  .hero{height:360px}
  .hero-content h1{font-size:28px}
  .hero-content h2{font-size:16px}
  .section{padding:36px 0}
  .section-title{font-size:22px}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .module-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}