/* ========================================
   涩里番植物视频社区 - 原创样式表
   配色：森林绿 #1a5c2e / 金色 #c8a951 / 暖棕 #5a3e28 / 米白 #faf6ef
   ======================================== */
*{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:#2c2c2c;background:#faf6ef;line-height:1.8}
a{color:#1a5c2e;text-decoration:none;transition:color .3s}
a:hover{color:#c8a951}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 导航 === */
.site-header{background:#1a2e1a;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.3)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto}
.logo-area{display:flex;align-items:center;gap:10px;padding:10px 0}
.logo-area img{width:42px;height:42px;border-radius:8px}
.logo-area .brand-name{font-size:1.5rem;font-weight:700;color:#c8a951;letter-spacing:2px}
.main-nav{display:flex;gap:6px;list-style:none}
.main-nav li a{display:block;padding:14px 16px;color:#d4cfc5;font-size:.95rem;border-radius:6px;transition:all .3s}
.main-nav li a:hover,.main-nav li a.active{background:#2a4a2a;color:#c8a951}
.mobile-menu-btn{display:none;background:none;border:none;color:#c8a951;font-size:1.5rem;cursor:pointer}

/* === 搜索框 === */
.search-bar{background:#f0ebe2;padding:12px 0;border-bottom:1px solid #d4cfc5}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%}
.search-box input{flex:1;padding:10px 18px;border:2px solid #1a5c2e;border-right:none;border-radius:25px 0 0 25px;font-size:.95rem;background:#fff;outline:none}
.search-box input:focus{border-color:#c8a951}
.search-box button{padding:10px 24px;background:#1a5c2e;color:#fff;border:2px solid #1a5c2e;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-box button:hover{background:#c8a951;border-color:#c8a951}

/* === Hero Banner === */
.hero{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.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;padding:20px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;text-shadow:0 3px 12px rgba(0,0,0,.5)}
.hero-content h1 .highlight{color:#c8a951}
.hero-content p{font-size:1.15rem;max-width:680px;margin:0 auto 24px;line-height:1.9;text-shadow:0 2px 6px rgba(0,0,0,.4)}
.hero-content .hero-tags{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.hero-content .hero-tags span{background:rgba(200,169,81,.25);border:1px solid rgba(200,169,81,.5);padding:6px 16px;border-radius:20px;font-size:.85rem}

/* === 通用区块 === */
.section{padding:60px 0}
.section-alt{background:#f0ebe2}
.section-dark{background:#1a2e1a;color:#e8e2d6}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#1a5c2e;margin-bottom:8px}
.section-dark .section-title h2{color:#c8a951}
.section-title p{color:#6b6255;font-size:1rem}
.section-dark .section-title p{color:#a09882}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 28px rgba(0,0,0,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-card .play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.35);opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn svg{width:56px;height:56px;fill:#fff;filter:drop-shadow(0 2px 8px rgba(0,0,0,.3))}
.video-card .card-body{padding:14px}
.video-card .card-body h3{font-size:.95rem;color:#2c2c2c;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;gap:12px;color:#8a8070;font-size:.8rem}
.video-card .card-meta span{display:flex;align-items:center;gap:3px}
.video-card .card-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-card .card-tags span{background:#e8f5e9;color:#1a5c2e;padding:2px 10px;border-radius:12px;font-size:.75rem}

/* === 三列特性 === */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-box{background:#fff;border-radius:12px;padding:32px 24px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:transform .3s}
.feature-box:hover{transform:translateY(-4px)}
.feature-box .icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#1a5c2e,#2d8a4e);border-radius:16px;display:flex;align-items:center;justify-content:center}
.feature-box .icon svg{width:32px;height:32px;fill:#fff}
.feature-box h3{font-size:1.15rem;color:#1a5c2e;margin-bottom:10px}
.feature-box p{color:#6b6255;font-size:.9rem;line-height:1.7}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);text-align:center;padding:28px 20px}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid #c8a951}
.expert-card h4{font-size:1rem;color:#1a5c2e;margin-bottom:4px}
.expert-card .role{color:#c8a951;font-size:.85rem;margin-bottom:10px}
.expert-card p{color:#6b6255;font-size:.85rem;line-height:1.6;margin-bottom:12px}
.expert-card .expert-btn{display:inline-block;padding:6px 18px;background:#1a5c2e;color:#fff;border-radius:20px;font-size:.82rem;transition:background .3s}
.expert-card .expert-btn:hover{background:#c8a951;color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.faq-item .faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#1a5c2e;font-size:1rem}
.faq-item .faq-q .arrow{transition:transform .3s;font-size:1.2rem;color:#c8a951}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#6b6255;font-size:.92rem;line-height:1.8}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}

/* === 评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.review-card .stars{color:#c8a951;font-size:1.1rem;margin-bottom:8px}
.review-card .review-text{color:#4a4a4a;font-size:.92rem;line-height:1.8;margin-bottom:12px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .name{font-weight:600;color:#1a5c2e;font-size:.9rem}
.review-card .reviewer .date{color:#8a8070;font-size:.8rem}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:20px 0}
.tag-cloud a{display:inline-block;padding:8px 20px;background:#fff;border:1px solid #d4cfc5;border-radius:25px;color:#1a5c2e;font-size:.88rem;transition:all .3s}
.tag-cloud a:hover{background:#1a5c2e;color:#fff;border-color:#1a5c2e}

/* === 统计条 === */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:40px 0}
.stat-item{text-align:center}
.stat-item .num{font-size:2.4rem;font-weight:700;color:#c8a951}
.stat-item .label{color:#a09882;font-size:.9rem;margin-top:4px}

/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;padding:20px 0}
.brand-wall .brand-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-size:1rem;color:#5a3e28;font-weight:600}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-info{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.contact-info h3{color:#1a5c2e;font-size:1.2rem;margin-bottom:16px}
.contact-info .info-item{display:flex;gap:12px;margin-bottom:14px;color:#4a4a4a;font-size:.92rem}
.contact-info .info-item strong{color:#1a5c2e;min-width:80px}
.qr-codes{display:flex;gap:24px;justify-content:center}
.qr-codes .qr-item{text-align:center}
.qr-codes .qr-item img{width:140px;height:140px;border-radius:10px;margin-bottom:8px}
.qr-codes .qr-item p{color:#6b6255;font-size:.85rem}

/* === 社交分享 === */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0}
.share-bar a{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;color:#fff;font-size:.85rem;transition:opacity .3s}
.share-bar a:hover{opacity:.85;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#fb7299}

/* === 页脚 === */
.site-footer{background:#0f1a0f;color:#8a8070;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#c8a951;font-size:1rem;margin-bottom:14px}
.footer-col a{display:block;color:#8a8070;font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#c8a951}
.footer-col p{font-size:.88rem;line-height:1.7}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #1a2e1a;font-size:.82rem}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#8a8070}
.breadcrumb a{color:#1a5c2e}
.breadcrumb span{margin:0 6px;color:#c8a951}

/* === 内页Banner === */
.page-banner{position:relative;height:300px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.page-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.page-banner .banner-content{position:relative;z-index:2;text-align:center;color:#fff}
.page-banner h1{font-size:2.2rem;text-shadow:0 3px 10px rgba(0,0,0,.5)}
.page-banner p{font-size:1rem;margin-top:8px;text-shadow:0 2px 6px rgba(0,0,0,.4)}

/* === 内容区 === */
.content-area{padding:40px 0}
.content-area h2{font-size:1.6rem;color:#1a5c2e;margin-bottom:16px}
.content-area h3{font-size:1.25rem;color:#5a3e28;margin:20px 0 10px}
.content-area p{color:#4a4a4a;margin-bottom:14px;line-height:1.9}
.content-area .article-img{border-radius:12px;margin:20px 0;box-shadow:0 4px 16px rgba(0,0,0,.1)}

/* === How-To指南 === */
.howto-steps{counter-reset:step}
.howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.howto-step::before{counter-increment:step;content:counter(step);width:40px;height:40px;min-width:40px;background:#1a5c2e;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.howto-step .step-content h4{color:#1a5c2e;font-size:1rem;margin-bottom:4px}
.howto-step .step-content p{color:#6b6255;font-size:.92rem}

/* === 干扰标签隐藏 === */
.jammer{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;opacity:0;pointer-events:none}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#1a2e1a;flex-direction:column;padding:10px}
  .main-nav.show{display:flex}
  .mobile-menu-btn{display:block}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .hero{height:400px}
  .hero-content h1{font-size:1.8rem}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:1fr}
  .hero{height:320px}
  .hero-content h1{font-size:1.5rem}
}