/* ============================================
   抖阴 - 原创电竞风格CSS
   配色：深蓝#0a0e1a 电竞蓝#1e90ff 皇家紫#6c3ce0 金色#d4a843 暗灰#1a1f2e
   ============================================ */
*{margin:0;padding:0;box-sizing:border-box}
:root{--bg-dark:#0a0e1a;--bg-card:#131729;--bg-section:#0f1322;--blue:#1e90ff;--purple:#6c3ce0;--gold:#d4a843;--gold-light:#f0d68a;--text:#e0e6f0;--text-muted:#8892a8;--border:#1f2940;--gradient-main:linear-gradient(135deg,#1e90ff,#6c3ce0);--gradient-gold:linear-gradient(135deg,#d4a843,#f0d68a);--radius:12px;--shadow:0 4px 24px rgba(0,0,0,.4)}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg-dark);color:var(--text);line-height:1.7;font-size:16px}
a{color:var(--blue);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}

/* === 顶部导航 === */
.site-header{background:rgba(10,14,26,.95);backdrop-filter:blur(12px);position:sticky;top:0;z-index:1000;border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:42px;width:auto}
.nav-logo span{font-size:20px;font-weight:700;background:var(--gradient-main);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-menu{display:flex;list-style:none;gap:6px}
.nav-menu li a{padding:8px 14px;border-radius:8px;font-size:14px;color:var(--text);transition:all .3s;white-space:nowrap}
.nav-menu li a:hover,.nav-menu li a.active{background:var(--gradient-main);color:#fff}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer}

/* === 搜索框 === */
.search-bar{background:var(--bg-section);padding:14px 0;border-bottom:1px solid var(--border)}
.search-wrap{max-width:640px;margin:0 auto;display:flex;gap:0;padding:0 20px}
.search-wrap input{flex:1;padding:10px 18px;background:var(--bg-card);border:1px solid var(--border);border-radius:8px 0 0 8px;color:var(--text);font-size:15px;outline:none;transition:border .3s}
.search-wrap input:focus{border-color:var(--blue)}
.search-wrap button{padding:10px 24px;background:var(--gradient-main);border:none;color:#fff;font-size:15px;border-radius:0 8px 8px 0;cursor:pointer;transition:opacity .3s}
.search-wrap button:hover{opacity:.85}

/* === Banner === */
.hero-banner{position:relative;min-height:480px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#0a0e1a}
.hero-banner .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45)}
.hero-content{position:relative;z-index:2;text-align:center;padding:60px 20px}
.hero-content h1{font-size:42px;font-weight:800;margin-bottom:16px;text-shadow:0 2px 20px rgba(30,144,255,.5)}
.hero-content h1 .brand-hl{background:var(--gradient-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-content p{font-size:18px;color:var(--text-muted);max-width:700px;margin:0 auto 24px;line-height:1.8}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:var(--gradient-main);color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:transform .3s,box-shadow .3s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(30,144,255,.4);color:#fff}
.btn-outline{display:inline-block;padding:12px 32px;border:2px solid var(--gold);color:var(--gold);border-radius:30px;font-size:16px;font-weight:600;transition:all .3s}
.btn-outline:hover{background:var(--gold);color:#0a0e1a}

/* === 通用模块 === */
.section{padding:60px 0}
.section-alt{background:var(--bg-section)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:30px;font-weight:700;margin-bottom:8px}
.section-title h2 .hl{color:var(--gold)}
.section-title p{color:var(--text-muted);font-size:16px}
.section-title h3{font-size:22px;color:var(--text-muted);margin-top:6px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:transform .3s,box-shadow .3s;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(30,144,255,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#0d1020}
.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)}
.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .3s}
.video-card:hover .video-thumb video{opacity:1}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(30,144,255,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s,transform .3s;cursor:pointer;z-index:3}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1.1)}
.video-dur{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:2}
.video-info{padding:14px}
.video-info h3{font-size:14px;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:12px;color:var(--text-muted);flex-wrap:wrap}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-tags span{padding:2px 8px;background:rgba(30,144,255,.12);color:var(--blue);border-radius:4px;font-size:11px}
.video-author{font-size:12px;color:var(--text-muted);margin-top:6px}

/* === 模块卡片 === */
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.module-card{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:all .3s;text-align:center}
.module-card:hover{border-color:var(--blue);box-shadow:0 0 20px rgba(30,144,255,.1)}
.module-icon{font-size:40px;margin-bottom:14px}
.module-card h4{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--gold)}
.module-card p{font-size:14px;color:var(--text-muted);line-height:1.6}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);text-align:center;transition:all .3s}
.expert-card:hover{border-color:var(--purple);transform:translateY(-4px)}
.expert-card img{width:90px;height:90px;border-radius:50%;margin:0 auto 14px;object-fit:cover;border:3px solid var(--gold)}
.expert-card h4{font-size:16px;font-weight:600;color:var(--gold);margin-bottom:4px}
.expert-card h5{font-size:13px;color:var(--blue);margin-bottom:10px}
.expert-card h6{font-size:12px;color:var(--text-muted);margin-bottom:8px}
.expert-card p{font-size:13px;color:var(--text-muted);line-height:1.6;text-align:left}
.expert-btns{display:flex;gap:8px;justify-content:center;margin-top:12px}
.expert-btns a{padding:6px 14px;border-radius:6px;font-size:12px;border:1px solid var(--border);color:var(--text-muted);transition:all .3s}
.expert-btns a:hover{border-color:var(--blue);color:var(--blue)}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;transition:background .3s}
.faq-q:hover{background:rgba(30,144,255,.06)}
.faq-q::after{content:'+';font-size:20px;color:var(--blue);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;font-size:14px;color:var(--text-muted);line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 16px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient-main);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.review-name{font-weight:600;font-size:14px}
.review-date{font-size:12px;color:var(--text-muted)}
.review-stars{color:var(--gold);font-size:14px;margin-bottom:8px}
.review-text{font-size:14px;color:var(--text-muted);line-height:1.6}

/* === 合作品牌墙 === */
.partner-wall{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;align-items:center}
.partner-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 28px;font-size:16px;font-weight:600;color:var(--text-muted);transition:all .3s}
.partner-item:hover{border-color:var(--gold);color:var(--gold)}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-info{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.contact-info h4{font-size:18px;font-weight:600;color:var(--gold);margin-bottom:16px}
.contact-row{display:flex;gap:10px;margin-bottom:12px;font-size:14px;color:var(--text-muted)}
.contact-row .label{color:var(--text);font-weight:600;min-width:80px}
.qr-grid{display:flex;gap:20px;justify-content:center;margin-top:16px}
.qr-item{text-align:center}
.qr-item img{width:140px;height:140px;border-radius:8px;margin-bottom:8px}
.qr-item p{font-size:13px;color:var(--text-muted)}

/* === MCP面板 === */
.mcp-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:20px}
.mcp-panel h5{font-size:15px;color:var(--blue);margin-bottom:12px}
.mcp-status{display:flex;gap:16px;flex-wrap:wrap}
.mcp-dot{width:10px;height:10px;border-radius:50%;background:#22c55e;display:inline-block;margin-right:4px}
.mcp-item{font-size:13px;color:var(--text-muted);display:flex;align-items:center}

/* === 社交分享 === */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:13px;color:#fff;transition:opacity .3s;cursor:pointer}
.share-btn:hover{opacity:.8;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* === 页脚 === */
.site-footer{background:var(--bg-section);border-top:1px solid var(--border);padding:40px 0 20px}
.footer-top{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--gold);margin-bottom:14px}
.footer-col a{display:block;font-size:13px;color:var(--text-muted);margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:var(--blue)}
.footer-col p{font-size:13px;color:var(--text-muted);line-height:1.6}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.footer-bottom a{color:var(--blue)}
.footer-links{display:flex;gap:16px;justify-content:center;margin-bottom:10px;flex-wrap:wrap}
.footer-links a{font-size:12px;color:var(--text-muted)}

/* === 面包屑 === */
.breadcrumb{padding:12px 0;font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--blue)}
.breadcrumb span{margin:0 6px}

/* === 内页通用 === */
.page-hero{background:var(--bg-section);padding:40px 0;text-align:center;border-bottom:1px solid var(--border)}
.page-hero h1{font-size:32px;font-weight:700;margin-bottom:8px}
.page-hero p{color:var(--text-muted);font-size:16px}
.page-content{padding:40px 0}
.inner-links{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.inner-link{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;transition:all .3s}
.inner-link:hover{border-color:var(--blue);transform:translateY(-3px)}
.inner-link h5{font-size:14px;color:var(--gold);margin-bottom:4px}
.inner-link p{font-size:12px;color:var(--text-muted)}

/* === How-To指南 === */
.howto-steps{max-width:700px;margin:0 auto}
.howto-step{display:flex;gap:16px;margin-bottom:20px;align-items:flex-start}
.step-num{width:36px;height:36px;border-radius:50%;background:var(--gradient-main);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0}
.step-text h5{font-size:15px;font-weight:600;margin-bottom:4px}
.step-text p{font-size:14px;color:var(--text-muted)}

/* === 标签云 === */
.tag-cloud{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:20px}
.tag-cloud a{padding:6px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:20px;font-size:13px;color:var(--text-muted);transition:all .3s}
.tag-cloud a:hover{border-color:var(--blue);color:var(--blue)}

/* === 时间线 === */
.timeline{max-width:700px;margin:0 auto;position:relative;padding-left:30px}
.timeline::before{content:'';position:absolute;left:10px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;margin-bottom:24px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--blue);border:2px solid var(--bg-dark)}
.timeline-item h5{font-size:15px;font-weight:600;color:var(--gold)}
.timeline-item p{font-size:14px;color:var(--text-muted)}

/* === 法律页面 === */
.legal-content{max-width:800px;margin:0 auto}
.legal-content h3{font-size:20px;margin:24px 0 12px;color:var(--gold)}
.legal-content p{font-size:14px;color:var(--text-muted);margin-bottom:12px;line-height:1.8}

/* === 干扰标签隐藏 === */
.4urvdj8{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* === 响应式 === */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(3,1fr)}
.module-grid,.expert-grid{grid-template-columns:repeat(2,1fr)}
.footer-top{grid-template-columns:repeat(2,1fr)}
.inner-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.nav-menu{display:none;position:absolute;top:62px;left:0;right:0;background:var(--bg-dark);flex-direction:column;padding:16px;border-bottom:1px solid var(--border)}
.nav-menu.show{display:flex}
.nav-toggle{display:block}
.hero-content h1{font-size:28px}
.hero-content p{font-size:15px}
.hero-banner{min-height:360px}
.video-grid{grid-template-columns:repeat(2,1fr)}
.module-grid,.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.footer-top{grid-template-columns:1fr}
.section{padding:40px 0}
.section-title h2{font-size:24px}
.inner-links{grid-template-columns:1fr}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.hero-content h1{font-size:22px}
.nav-logo span{font-size:16px}
}