/* 陈美娇植物视频社区 - sedyqm.cn 全站样式 */
*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#00c853;--primary-dark:#009624;--secondary:#1a237e;--dark:#0a0e1a;--darker:#060810;--card:#111827;--text:#e0e0e0;--text-muted:#9ca3af;--accent:#00e676;--radius:12px}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',sans-serif;background:var(--dark);color:var(--text);line-height:1.8;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color .3s}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 干扰标签隐藏 */
.noise-wrap{display:none!important;visibility:hidden!important;width:0!important;height:0!important;overflow:hidden!important;position:absolute!important;left:-9999px!important;top:-9999px!important;opacity:0!important;pointer-events:none!important;font-size:0!important;line-height:0!important}
/* 导航 */
.site-header{background:rgba(10,14,26,.95);backdrop-filter:blur(10px);position:fixed;top:0;left:0;right:0;z-index:1000;border-bottom:1px solid rgba(0,200,83,.1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:40px;width:auto}
.nav-logo span{font-size:1.2rem;font-weight:700;color:#fff}
.nav-menu{display:flex;gap:24px;list-style:none}
.nav-menu a{color:var(--text);font-size:.9rem;padding:6px 0;border-bottom:2px solid transparent;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{color:var(--accent);border-bottom-color:var(--accent)}
.nav-search{position:relative}
.nav-search input{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:20px;padding:6px 35px 6px 14px;color:#fff;font-size:.85rem;width:180px;transition:all .3s}
.nav-search input:focus{outline:none;border-color:var(--accent);width:220px}
.nav-search button{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
/* Hero Banner */
.hero{position:relative;min-height:85vh;display:flex;align-items:center;justify-content:center;text-align:center;margin-top:65px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('../images/hero-banner.jpg') center/cover no-repeat;z-index:0}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,26,.4) 0%,rgba(10,14,26,.85) 100%)}
.hero-content{position:relative;z-index:2;padding:40px 20px;max-width:800px}
.hero h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;color:#fff;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero h1 .brand{color:var(--accent)}
.hero p{font-size:1.15rem;color:rgba(255,255,255,.85);margin-bottom:24px;line-height:1.9}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .num{font-size:2rem;font-weight:800;color:var(--accent)}
.hero-stat .label{font-size:.85rem;color:var(--text-muted);margin-top:4px}
/* Section */
.section{padding:70px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:2rem;font-weight:700;color:#fff;margin-bottom:10px}
.section-title p{color:var(--text-muted);font-size:1rem}
/* 视频卡片网格 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:var(--card);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,200,83,.15)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.video-thumb .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(0,200,83,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;box-shadow:0 4px 20px rgba(0,200,83,.4)}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-thumb .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-thumb .tag{position:absolute;top:8px;left:8px;background:var(--accent);color:#000;padding:3px 10px;border-radius:4px;font-size:.75rem;font-weight:600}
.video-info{padding:14px 16px}
.video-info h3{font-size:.95rem;font-weight:600;color:#fff;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:14px;color:var(--text-muted);font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:4px}
/* 特色模块 */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:var(--card);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:all .3s;border:1px solid rgba(255,255,255,.05)}
.feature-card:hover{border-color:var(--accent);transform:translateY(-4px)}
.feature-card .icon{font-size:2.5rem;margin-bottom:14px}
.feature-card h4{color:#fff;font-size:1rem;margin-bottom:8px}
.feature-card p{color:var(--text-muted);font-size:.85rem;line-height:1.6}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;border:1px solid rgba(255,255,255,.05)}
.faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#fff;font-weight:500;transition:background .3s}
.faq-q:hover{background:rgba(0,200,83,.05)}
.faq-q::after{content:'+';font-size:1.3rem;color:var(--accent);transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:var(--text-muted);line-height:1.8}
.faq-item.active .faq-a{padding:0 24px 18px;max-height:300px}
/* 评论 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:var(--card);border-radius:var(--radius);padding:24px;border:1px solid rgba(255,255,255,.05)}
.review-card .stars{color:#ffc107;margin-bottom:10px;font-size:1.1rem}
.review-card .text{color:var(--text);font-size:.9rem;line-height:1.7;margin-bottom:12px}
.review-card .author{color:var(--text-muted);font-size:.8rem}
/* 专家 */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.expert-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid rgba(255,255,255,.05);transition:all .3s}
.expert-card:hover{border-color:var(--accent)}
.expert-card .avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.expert-card h4{color:#fff;margin-bottom:4px}
.expert-card .role{color:var(--accent);font-size:.8rem;margin-bottom:8px}
.expert-card p{color:var(--text-muted);font-size:.8rem;line-height:1.5}
/* 合作伙伴 */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.partner-item{background:var(--card);border-radius:var(--radius);padding:20px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.05);transition:all .3s;min-height:80px}
.partner-item:hover{border-color:var(--accent)}
.partner-item span{color:var(--text-muted);font-size:.85rem;font-weight:500}
/* 页脚 */
.site-footer{background:var(--darker);border-top:1px solid rgba(255,255,255,.05);padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h4{color:#fff;margin-bottom:16px;font-size:1rem}
.footer-col p,.footer-col a{color:var(--text-muted);font-size:.85rem;line-height:2}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.05);color:var(--text-muted);font-size:.8rem}
/* 面包屑 */
.breadcrumb{padding:80px 0 10px;font-size:.85rem;color:var(--text-muted)}
.breadcrumb a{color:var(--accent)}
/* 内页 */
.page-hero{padding:100px 0 40px;text-align:center;background:linear-gradient(180deg,rgba(0,200,83,.05),transparent)}
.page-hero h1{font-size:2.2rem;color:#fff;margin-bottom:10px}
.page-hero p{color:var(--text-muted)}
.content-section{padding:40px 0}
.content-section h2{color:#fff;font-size:1.5rem;margin-bottom:16px}
.content-section p{color:var(--text);line-height:1.9;margin-bottom:16px}
/* 联系表单 */
.contact-form{max-width:600px}
.form-group{margin-bottom:20px}
.form-group label{display:block;color:var(--text);margin-bottom:6px;font-size:.9rem}
.form-group input,.form-group textarea{width:100%;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:12px 16px;color:#fff;font-size:.9rem;transition:border-color .3s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent)}
.form-group textarea{min-height:120px;resize:vertical}
.btn{display:inline-block;background:var(--accent);color:#000;padding:12px 28px;border-radius:8px;font-weight:600;font-size:.9rem;border:none;cursor:pointer;transition:all .3s}
.btn:hover{background:var(--primary);transform:translateY(-2px)}
/* 响应式 */
@media(max-width:1024px){
.feature-grid{grid-template-columns:repeat(2,1fr)}
.expert-grid{grid-template-columns:repeat(2,1fr)}
.partner-grid{grid-template-columns:repeat(3,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.nav-menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--darker);flex-direction:column;padding:20px;gap:12px}
.nav-menu.active{display:flex}
.mobile-toggle{display:block}
.hero h1{font-size:1.8rem}
.hero-stats{gap:20px}
.video-grid{grid-template-columns:repeat(2,1fr)}
.review-grid{grid-template-columns:1fr}
.feature-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.partner-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.hero{min-height:70vh}
}