/* 哔咔mv网红视频 - 全站样式 */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#222;background:#fafafa;line-height:1.65;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;height:auto;display:block}
a{color:#15a554;text-decoration:none;transition:.2s}
a:hover{color:#ff7a45}

/* 顶部信息条 */
.topbar{background:#15a554;color:#fff;font-size:13px}
.topbar-inner{max-width:1200px;margin:0 auto;padding:6px 16px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.topbar a{color:#fff;opacity:.95}

/* 头部 */
.site-header{background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:99;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.header-inner{max-width:1200px;margin:0 auto;padding:12px 16px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:46px;height:46px;border-radius:50%}
.brand-name{font-size:20px;font-weight:700;color:#15a554;letter-spacing:.5px}
.brand-name .sub{display:block;font-size:11px;color:#999;font-weight:400;letter-spacing:1px}

/* 导航 */
.nav{display:flex;gap:4px;flex-wrap:wrap;flex:1;justify-content:center}
.nav a{padding:8px 14px;border-radius:6px;color:#333;font-size:15px;font-weight:500}
.nav a:hover,.nav a.active{background:#eafbf1;color:#15a554}

/* 搜索框 */
.search{display:flex;background:#f3f5f7;border-radius:24px;overflow:hidden;height:38px;min-width:240px}
.search input{flex:1;border:0;background:transparent;padding:0 16px;font-size:14px;outline:none;color:#333}
.search button{border:0;background:#15a554;color:#fff;padding:0 18px;cursor:pointer;font-size:14px}

/* 面包屑 */
.crumb{max-width:1200px;margin:14px auto 0;padding:0 16px;font-size:13px;color:#888}
.crumb a{color:#888}
.crumb span{color:#15a554}

/* 主体容器 */
.container{max-width:1200px;margin:0 auto;padding:24px 16px}

/* Hero */
.hero{position:relative;border-radius:14px;overflow:hidden;margin-bottom:30px;background:#000}
.hero img{width:100%;display:block;opacity:.92}
.hero-text{position:absolute;left:0;right:0;bottom:0;padding:32px 30px;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#fff}
.hero-text h1{font-size:30px;margin-bottom:10px;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.hero-text p{font-size:15px;opacity:.95;max-width:760px}
.hero-tags{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.hero-tags span{background:rgba(255,255,255,.2);backdrop-filter:blur(6px);padding:4px 12px;border-radius:14px;font-size:12px}

/* 标题 */
.section{margin:40px 0}
.section-title{display:flex;justify-content:space-between;align-items:flex-end;border-left:4px solid #15a554;padding-left:12px;margin-bottom:20px}
.section-title h2{font-size:22px;color:#222}
.section-title .more{font-size:13px;color:#888}
.section-title small{display:block;color:#999;font-size:12px;font-weight:400;margin-top:4px}

/* 哔咔MV网格 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.video-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.05);transition:transform .25s,box-shadow .25s}
.video-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,.1)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.7);width:64px;height:64px;border-radius:50%;background:rgba(21,165,84,.9);display:flex;align-items:center;justify-content:center;opacity:0;transition:.3s;cursor:pointer}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.play-btn::after{content:"";display:block;width:0;height:0;border:14px solid transparent;border-left:22px solid #fff;margin-left:6px}
.video-meta{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:2px 8px;border-radius:3px}
.video-info{padding:12px 14px}
.video-info h3{font-size:15px;color:#222;margin-bottom:6px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .stat{font-size:12px;color:#999;display:flex;gap:14px}

/* 通用卡片栅格 */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.card{background:#fff;border-radius:10px;padding:20px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.card h3{color:#15a554;margin-bottom:10px;font-size:17px}
.card p{color:#555;font-size:14px}
.card ul{margin-top:8px;padding-left:18px;color:#555;font-size:14px}
.card ul li{margin:4px 0}

/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.expert-card{background:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.expert-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 12px;border:3px solid #eafbf1}
.expert-card h3{font-size:17px;margin-bottom:4px}
.expert-card .role{color:#15a554;font-size:13px;margin-bottom:8px}
.expert-card .desc{font-size:13px;color:#666;margin-bottom:12px;min-height:54px}
.expert-card .award{font-size:12px;color:#888;margin-bottom:10px}
.expert-card .actions a{display:inline-block;margin:0 4px;padding:6px 12px;border-radius:18px;font-size:12px;border:1px solid #15a554;color:#15a554}
.expert-card .actions a:hover{background:#15a554;color:#fff}

/* 合作品牌墙 */
.partners{background:#fff;border-radius:10px;padding:24px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.partners img{margin:0 auto;border-radius:8px}

/* FAQ */
.faq{background:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq details{border-bottom:1px solid #f0f0f0;padding:14px 20px}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;font-weight:600;font-size:15px;color:#222;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:#15a554}
.faq details[open] summary::after{content:"−"}
.faq p{margin-top:10px;color:#555;font-size:14px}

/* 评价 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.review-card{background:#fff;border-radius:10px;padding:18px 20px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.review-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.review-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#15a554,#56e09f);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.review-card .name{font-weight:600;font-size:14px}
.review-card .stars{color:#ffb43a;font-size:13px}
.review-card p{font-size:14px;color:#555;line-height:1.6}

/* How-to步骤 */
.howto{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.step{background:#fff;border-radius:10px;padding:20px;box-shadow:0 2px 10px rgba(0,0,0,.05);position:relative}
.step .num{position:absolute;top:-14px;left:18px;width:32px;height:32px;border-radius:50%;background:#15a554;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.step h3{margin:6px 0 8px;font-size:16px}
.step p{font-size:13px;color:#666}

/* 联系信息 */
.contact-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
@media (max-width:768px){.contact-grid{grid-template-columns:1fr}}
.contact-info{background:#fff;border-radius:10px;padding:24px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.contact-info p{margin:6px 0;font-size:14px;color:#555}
.contact-info strong{color:#222}
.qr-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.qr-item{background:#fff;border-radius:10px;padding:14px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,.05);width:150px}
.qr-item img{width:120px;height:120px;margin:0 auto 6px;border-radius:6px}
.qr-item span{font-size:12px;color:#666}

/* 分享 */
.share{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.share a{padding:6px 14px;border-radius:18px;background:#fff;border:1px solid #eee;font-size:12px;color:#555}
.share a:hover{background:#15a554;color:#fff;border-color:#15a554}

/* 底部 */
.site-footer{background:#1c1f23;color:#bbb;padding:36px 16px 18px;margin-top:50px;font-size:13px}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.footer-inner h4{color:#fff;font-size:15px;margin-bottom:10px}
.footer-inner a{color:#bbb}
.footer-inner a:hover{color:#fff}
.footer-inner ul{list-style:none}
.footer-inner ul li{margin:5px 0}
.footer-bottom{max-width:1200px;margin:24px auto 0;border-top:1px solid #333;padding-top:14px;text-align:center;color:#777;font-size:12px;line-height:1.8}
.footer-bottom .update-time{color:#15a554}
.footer-qr{display:flex;gap:12px;margin-top:8px}
.footer-qr img{width:90px;height:90px;border-radius:6px;background:#fff;padding:4px}

/* 内页文章 */
.article{background:#fff;padding:30px;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.article h1{font-size:26px;color:#222;margin-bottom:8px}
.article .meta{color:#999;font-size:13px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid #f0f0f0}
.article p{margin:12px 0;color:#444;font-size:15px}
.article h2{font-size:19px;color:#15a554;margin-top:22px;border-left:3px solid #15a554;padding-left:10px}
.article h3{font-size:16px;color:#333;margin-top:18px}
.article ul,.article ol{margin:12px 0 12px 28px;color:#444}
.article li{margin:6px 0}
.article blockquote{border-left:4px solid #15a554;background:#f6fef9;padding:12px 16px;margin:14px 0;color:#555;font-size:14px}
.article img{margin:14px 0;border-radius:8px}
.article table{border-collapse:collapse;width:100%;margin:14px 0;font-size:14px}
.article th,.article td{border:1px solid #eee;padding:8px 12px;text-align:left}
.article th{background:#eafbf1;color:#15a554}

/* 响应式 */
@media (max-width:768px){
  .header-inner{padding:10px 12px}
  .brand-name{font-size:17px}
  .nav a{padding:6px 10px;font-size:14px}
  .search{min-width:100%;order:3}
  .hero-text{padding:18px;}
  .hero-text h1{font-size:20px}
  .hero-text p{font-size:13px}
  .section{margin:28px 0}
  .article{padding:18px}
}