/* ============================================
   暗网 - 植物视频社区 原创样式表
   配色：翡翠绿 #0a6e3a / 古铜金 #c8952e / 墨玉黑 #1a1e24 / 云雾白 #f4f1eb / 竹青 #2d8f5e
   ============================================ */
*{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:#2c2c2c;background:#f4f1eb;line-height:1.75}
a{color:#0a6e3a;text-decoration:none;transition:color .3s}
a:hover{color:#c8952e}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.site-header{background:linear-gradient(135deg,#1a1e24 0%,#0d2818 100%);position:sticky;top:0;z-index:999;box-shadow:0 2px 12px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:10px 20px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:40px;width:auto}
.logo-wrap .brand-text{color:#c8952e;font-size:1.4rem;font-weight:700;letter-spacing:2px}
.main-nav{display:flex;gap:4px}
.main-nav a{color:#e8e4dc;padding:8px 14px;border-radius:6px;font-size:.92rem;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:rgba(200,149,46,.2);color:#c8952e}
.search-box{display:flex;align-items:center;background:rgba(255,255,255,.1);border-radius:20px;padding:4px 4px 4px 16px;max-width:280px}
.search-box input{background:none;border:none;color:#e8e4dc;outline:none;font-size:.88rem;width:160px}
.search-box input::placeholder{color:#8a8a7a}
.search-box button{background:#c8952e;color:#fff;border:none;border-radius:16px;padding:6px 16px;cursor:pointer;font-size:.85rem;transition:background .3s}
.search-box button:hover{background:#0a6e3a}
.mobile-toggle{display:none;background:none;border:none;color:#e8e4dc;font-size:1.5rem;cursor:pointer}

/* === Hero Banner === */
.hero-section{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#1a1e24}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:40px 20px}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;text-shadow:0 3px 12px rgba(0,0,0,.5);line-height:1.3}
.hero-content h1 .hl{color:#c8952e}
.hero-content p{font-size:1.15rem;margin-bottom:28px;opacity:.92;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{background:linear-gradient(135deg,#0a6e3a,#2d8f5e);color:#fff;padding:12px 32px;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;border:none;cursor:pointer;display:inline-block}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(10,110,58,.4);color:#fff}
.btn-secondary{background:transparent;color:#c8952e;padding:12px 32px;border-radius:30px;font-size:1rem;font-weight:600;border:2px solid #c8952e;transition:all .3s;display:inline-block}
.btn-secondary:hover{background:#c8952e;color:#fff;transform:translateY(-2px)}

/* === 通用区块 === */
.section{padding:60px 0}
.section-dark{background:linear-gradient(180deg,#1a1e24,#0d2818);color:#e8e4dc}
.section-alt{background:#eae6dd}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;font-weight:700;color:#0a6e3a;margin-bottom:8px}
.section-dark .section-title h2{color:#c8952e}
.section-title p{color:#6b6b5e;font-size:1rem}
.section-dark .section-title p{color:#a8a89a}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#6b6b5e}
.breadcrumb a{color:#0a6e3a}
.breadcrumb span{margin:0 6px;color:#999}

/* === 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(0,0,0,.08);transition:all .35s;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(10,110,58,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#1a1e24}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:56px;height:56px;background:rgba(200,149,46,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .35s;z-index:3}
.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{transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.78rem;z-index:3}
.video-info{padding:14px 16px}
.video-info h3{font-size:1rem;font-weight:600;margin-bottom:6px;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:.82rem;color:#8a8a7a}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tag{display:inline-block;background:#e8f5ee;color:#0a6e3a;padding:2px 10px;border-radius:12px;font-size:.78rem;margin-top:6px}

/* === 服务/功能模块 === */
.service-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.service-card{background:#fff;border-radius:14px;padding:32px 24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:all .35s;border-top:4px solid transparent}
.service-card:hover{transform:translateY(-4px);border-top-color:#0a6e3a;box-shadow:0 8px 28px rgba(10,110,58,.12)}
.service-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#e8f5ee,#d4edda);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.service-card h3{font-size:1.15rem;font-weight:600;margin-bottom:10px;color:#1a1e24}
.service-card p{font-size:.92rem;color:#6b6b5e;line-height:1.7}

/* === 专家团队 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.expert-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:all .35s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(10,110,58,.12)}
.expert-avatar{width:100%;height:240px;object-fit:cover}
.expert-info{padding:20px}
.expert-info h3{font-size:1.1rem;font-weight:600;margin-bottom:4px}
.expert-info .title{color:#c8952e;font-size:.88rem;margin-bottom:10px}
.expert-info p{font-size:.9rem;color:#6b6b5e;line-height:1.7;margin-bottom:12px}
.expert-actions{display:flex;gap:10px}
.expert-actions a{padding:6px 16px;border-radius:20px;font-size:.85rem;font-weight:500}

/* === 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-question{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#f0ede6}
.faq-question .arrow{transition:transform .3s;font-size:1.2rem;color:#0a6e3a}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;font-size:.92rem;color:#6b6b5e;line-height:1.8}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:500px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 12px rgba(0,0,0,.06);transition:all .3s}
.review-card:hover{box-shadow:0 6px 20px rgba(10,110,58,.1)}
.review-stars{color:#c8952e;font-size:1.1rem;margin-bottom:10px}
.review-text{font-size:.92rem;color:#4a4a4a;line-height:1.7;margin-bottom:12px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#0a6e3a,#2d8f5e);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-name{font-weight:600;font-size:.9rem}
.review-date{font-size:.8rem;color:#8a8a7a}

/* === 合作伙伴 === */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:32px;align-items:center}
.partner-wall .partner-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-weight:600;color:#6b6b5e;font-size:1rem;transition:all .3s}
.partner-wall .partner-item:hover{color:#0a6e3a;box-shadow:0 4px 16px rgba(10,110,58,.1)}

/* === 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:28px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.contact-card h4{font-size:1.05rem;margin-bottom:8px;color:#1a1e24}
.contact-card p{font-size:.9rem;color:#6b6b5e}

/* === 社交分享 === */
.social-share{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.social-share a{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:.88rem;color:#fff;transition:all .3s}
.social-share a:hover{transform:translateY(-2px);color:#fff}
.social-wechat{background:#07c160}
.social-weibo{background:#e6162d}
.social-douyin{background:#161823}
.social-bilibili{background:#00a1d6}

/* === 页脚 === */
.site-footer{background:linear-gradient(135deg,#1a1e24 0%,#0d2818 100%);color:#a8a89a;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:32px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#c8952e;font-size:1rem;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;color:#a8a89a;padding:4px 0;font-size:.9rem;transition:color .3s}
.footer-col a:hover{color:#c8952e}
.footer-col p{font-size:.88rem;line-height:1.7}
.footer-qr{display:flex;gap:16px;margin-top:12px}
.footer-qr img{width:100px;height:100px;border-radius:8px;border:2px solid rgba(200,149,46,.3)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:36px;padding:20px;text-align:center;font-size:.85rem}
.footer-bottom a{color:#c8952e}

/* === 内页Banner === */
.page-banner{background:linear-gradient(135deg,#1a1e24,#0d2818);padding:60px 0 40px;text-align:center;color:#fff}
.page-banner h1{font-size:2.2rem;font-weight:700;margin-bottom:8px}
.page-banner p{color:#a8a89a;font-size:1rem}

/* === 内页内容 === */
.page-content{padding:40px 0 60px}
.page-content h2{font-size:1.6rem;color:#0a6e3a;margin:32px 0 16px;font-weight:700}
.page-content h3{font-size:1.25rem;color:#1a1e24;margin:24px 0 12px;font-weight:600}
.page-content p{margin-bottom:16px;line-height:1.8;color:#4a4a4a}
.content-img{border-radius:12px;margin:20px 0;box-shadow:0 4px 16px rgba(0,0,0,.1)}

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

/* === 响应式 === */
@media(max-width:900px){
  .main-nav{display:none;position:absolute;top:60px;left:0;right:0;background:#1a1e24;flex-direction:column;padding:16px;gap:4px;box-shadow:0 8px 24px rgba(0,0,0,.3)}
  .main-nav.show{display:flex}
  .mobile-toggle{display:block}
  .search-box{max-width:200px}
  .search-box input{width:100px}
  .hero-content h1{font-size:1.8rem}
  .hero-section{min-height:380px}
  .section{padding:40px 0}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .header-inner{padding:8px 12px}
  .search-box{display:none}
  .hero-content h1{font-size:1.5rem}
  .hero-content p{font-size:.95rem}
  .video-grid{grid-template-columns:1fr 1fr;gap:12px}
  .service-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
}