/* ============================================
   福利姬植物视频社区 - 庄园风格原创CSS
   配色：翡翠绿 #2d5a27 / 金色 #c8a951 / 象牙白 #faf8f0
   ============================================ */
*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#2d5a27;--primary-light:#3e7c35;--primary-dark:#1a3d18;--gold:#c8a951;--gold-light:#dfc476;--ivory:#faf8f0;--cream:#f0ead6;--bark:#5c3d2e;--text:#2c2c2c;--text-light:#5a5a5a;--bg:#fdfcf8;--shadow:0 4px 20px rgba(45,90,39,0.1);--radius:12px}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;color:var(--text);background:var(--bg);line-height:1.8;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:color .3s}
a:hover{color:var(--gold)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

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

/* ===== 顶部导航 ===== */
.site-header{background:linear-gradient(135deg,var(--primary-dark),var(--primary));padding:0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 15px rgba(0,0,0,0.15)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:0 20px;height:68px}
.nav-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:1.4rem;font-weight:700}
.nav-brand img{width:42px;height:42px;border-radius:8px}
.nav-links{display:flex;list-style:none;gap:6px}
.nav-links a{color:rgba(255,255,255,0.85);padding:8px 14px;border-radius:6px;font-size:.9rem;transition:all .3s}
.nav-links a:hover,.nav-links a.active{background:rgba(255,255,255,0.15);color:#fff}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* ===== 搜索框 ===== */
.search-bar{background:var(--cream);padding:14px 0;border-bottom:1px solid rgba(45,90,39,0.1)}
.search-inner{max-width:600px;margin:0 auto;display:flex;gap:8px;padding:0 20px}
.search-inner input{flex:1;padding:10px 16px;border:2px solid var(--primary-light);border-radius:25px;font-size:.95rem;outline:none;background:#fff;transition:border-color .3s}
.search-inner input:focus{border-color:var(--gold)}
.search-inner button{padding:10px 24px;background:var(--primary);color:#fff;border:none;border-radius:25px;cursor:pointer;font-size:.9rem;transition:background .3s}
.search-inner button:hover{background:var(--gold)}

/* ===== Banner ===== */
.hero-banner{position:relative;height:520px;overflow:hidden;background:#1a3d18}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:0.7}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(to bottom,rgba(26,61,24,0.3),rgba(26,61,24,0.7))}
.hero-overlay h1{color:#fff;font-size:2.8rem;margin-bottom:12px;text-shadow:0 2px 10px rgba(0,0,0,0.4)}
.hero-overlay p{color:rgba(255,255,255,0.9);font-size:1.15rem;max-width:700px;line-height:1.9}
.hero-stats{display:flex;gap:40px;margin-top:28px}
.hero-stats .stat{text-align:center;color:#fff}
.hero-stats .stat-num{font-size:2rem;font-weight:700;color:var(--gold-light)}
.hero-stats .stat-label{font-size:.85rem;opacity:0.85;margin-top:2px}

/* ===== 通用模块标题 ===== */
.section{padding:60px 0}
.section-alt{background:var(--cream)}
.section-dark{background:var(--primary-dark);color:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.9rem;color:var(--primary-dark);position:relative;display:inline-block;padding-bottom:12px}
.section-dark .section-title h2{color:#fff}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:var(--gold);border-radius:2px}
.section-title p{color:var(--text-light);margin-top:10px;font-size:.95rem}
.section-dark .section-title p{color:rgba(255,255,255,0.7)}

/* ===== 视频卡片网格 ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(45,90,39,0.18)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#e8e0d0}
.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(1.06)}
.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(45,90,39,0.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:14px 16px}
.video-info h3{font-size:1rem;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;color:var(--text-light);font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.video-tags span{background:var(--cream);color:var(--primary);padding:2px 10px;border-radius:12px;font-size:.75rem}

/* ===== 分类模块 ===== */
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:18px}
.category-card{background:#fff;border-radius:var(--radius);padding:24px 16px;text-align:center;box-shadow:var(--shadow);transition:all .3s;border:2px solid transparent}
.category-card:hover{border-color:var(--gold);transform:translateY(-4px)}
.category-card .cat-icon{font-size:2.2rem;margin-bottom:10px}
.category-card h3{font-size:1rem;color:var(--primary-dark);margin-bottom:4px}
.category-card p{font-size:.8rem;color:var(--text-light)}

/* ===== AI赋能 ===== */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.15);border-radius:var(--radius);padding:30px 24px;text-align:center;transition:all .3s}
.ai-card:hover{background:rgba(255,255,255,0.15);transform:translateY(-4px)}
.ai-card .ai-icon{font-size:2.5rem;margin-bottom:14px}
.ai-card h3{font-size:1.1rem;margin-bottom:8px}
.ai-card p{font-size:.88rem;opacity:0.8;line-height:1.7}

/* ===== 专家展示 ===== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-card .expert-img{width:100%;height:200px;object-fit:cover}
.expert-card .expert-body{padding:18px}
.expert-card h3{font-size:1.05rem;color:var(--primary-dark);margin-bottom:4px}
.expert-card .expert-role{color:var(--gold);font-size:.85rem;margin-bottom:8px}
.expert-card p{font-size:.85rem;color:var(--text-light);line-height:1.6}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center;margin-top:12px}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;border:1px solid var(--primary);color:var(--primary);transition:all .3s}
.expert-card .expert-btns a:hover{background:var(--primary);color:#fff}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid rgba(45,90,39,0.12);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;background:#fff}
.faq-q{padding:16px 20px;cursor:pointer;font-weight:600;display:flex;justify-content:space-between;align-items:center;font-size:.95rem;transition:background .3s}
.faq-q:hover{background:var(--cream)}
.faq-q::after{content:'+';font-size:1.3rem;color:var(--gold);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s;font-size:.9rem;color:var(--text-light);line-height:1.8}
.faq-item.open .faq-a{padding:0 20px 16px;max-height:500px}

/* ===== 用户评价 ===== */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.review-card::before{content:'\201C';position:absolute;top:10px;left:16px;font-size:3rem;color:var(--gold);opacity:0.3;font-family:Georgia,serif}
.review-card .stars{color:var(--gold);font-size:.9rem;margin-bottom:8px}
.review-card p{font-size:.9rem;color:var(--text-light);line-height:1.7;margin-bottom:10px}
.review-card .reviewer{font-weight:600;font-size:.85rem;color:var(--primary-dark)}

/* ===== 合作品牌 ===== */
.brand-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.brand-wall .brand-item{background:#fff;padding:16px 28px;border-radius:8px;box-shadow:var(--shadow);font-size:.95rem;font-weight:600;color:var(--primary-dark);transition:all .3s}
.brand-wall .brand-item:hover{transform:scale(1.05);box-shadow:0 6px 25px rgba(45,90,39,0.15)}

/* ===== HowTo指南 ===== */
.howto-steps{max-width:700px;margin:0 auto;counter-reset:step}
.howto-step{display:flex;gap:18px;margin-bottom:24px;align-items:flex-start}
.howto-step::before{counter-increment:step;content:counter(step);flex-shrink:0;width:40px;height:40px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.howto-step .step-content h3{font-size:1rem;color:var(--primary-dark);margin-bottom:4px}
.howto-step .step-content p{font-size:.88rem;color:var(--text-light)}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center}
.contact-card h3{font-size:1.05rem;color:var(--primary-dark);margin-bottom:12px}
.contact-card p{font-size:.88rem;color:var(--text-light);line-height:1.7}
.contact-card img{width:140px;height:140px;margin:12px auto 0;border-radius:8px}

/* ===== 社交分享 ===== */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:25px;font-size:.85rem;color:#fff;transition:opacity .3s}
.share-btn:hover{opacity:0.85;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* ===== 页脚 ===== */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--gold)}
.footer-col p,.footer-col li{font-size:.85rem;line-height:2;color:rgba(255,255,255,0.65)}
.footer-col ul{list-style:none}
.footer-col a{color:rgba(255,255,255,0.65);transition:color .3s}
.footer-col a:hover{color:var(--gold)}
.footer-col .footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-col .footer-logo img{width:40px;height:40px;border-radius:8px}
.footer-col .footer-logo span{color:#fff;font-size:1.2rem;font-weight:700}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);margin-top:35px;padding:18px 20px;text-align:center;font-size:.8rem;color:rgba(255,255,255,0.45)}

/* ===== 面包屑 ===== */
.breadcrumb{padding:12px 0;font-size:.85rem;color:var(--text-light)}
.breadcrumb a{color:var(--primary)}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ===== 文章EEAT元素 ===== */
.article-meta{display:flex;gap:16px;align-items:center;padding:12px 0;border-bottom:1px solid var(--cream);margin-bottom:20px;font-size:.85rem;color:var(--text-light)}
.article-meta .author{font-weight:600;color:var(--primary-dark)}

/* ===== 内页内容 ===== */
.page-content{padding:40px 0 60px}
.page-content h2{font-size:1.5rem;color:var(--primary-dark);margin:28px 0 14px}
.page-content p{margin-bottom:14px;font-size:.95rem;line-height:1.9}

/* ===== 响应式 ===== */
@media(max-width:992px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .ai-features{grid-template-columns:1fr}
  .hero-banner{height:400px}
  .hero-overlay h1{font-size:2rem}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--primary-dark);flex-direction:column;padding:16px;gap:4px}
  .nav-links.show{display:flex}
  .mobile-toggle{display:block}
  .hero-banner{height:320px}
  .hero-overlay h1{font-size:1.6rem}
  .hero-overlay p{font-size:.9rem}
  .hero-stats{gap:20px}
  .hero-stats .stat-num{font-size:1.5rem}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{flex-direction:column;gap:10px}
}