/* ========================================
   呦呦视频 - 影视传媒与视频社区 原创样式表
   品牌：呦呦视频 | 域名：bjbtzgg.cn
   配色：甜蜜粉 #FF6B9D / 梦幻紫 #C44DFF / 活力橙 #FF9A56
   ======================================== */

/* === 基础重置与变量 === */
:root{
  --tx-pink:#FF6B9D;--tx-purple:#C44DFF;--tx-orange:#FF9A56;
  --tx-dark:#1A1028;--tx-card:#241538;--tx-card2:#2E1B48;
  --tx-white:#F5F0FF;--tx-gray:#A89BBF;--tx-border:#3A2558;
  --tx-gradient:linear-gradient(135deg,#FF6B9D,#C44DFF);
  --tx-gradient2:linear-gradient(135deg,#C44DFF,#FF9A56);
  --tx-shadow:0 8px 32px rgba(196,77,255,.18);
  --tx-radius:12px;--tx-radius-lg:20px;
  --tx-font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--tx-font);background:var(--tx-dark);color:var(--tx-white);line-height:1.7;overflow-x:hidden}
a{color:var(--tx-pink);text-decoration:none;transition:color .3s}
a:hover{color:var(--tx-orange)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}

/* === 容器 === */
.tx-container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.tx-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(26,16,40,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--tx-border);transition:background .3s}
.tx-header .tx-container{display:flex;align-items:center;justify-content:space-between;height:68px}
.tx-logo{display:flex;align-items:center;gap:10px;font-size:0}
.tx-logo img{height:42px;width:auto}
.tx-logo span{font-size:1.25rem;font-weight:800;background:var(--tx-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-nav{display:flex;align-items:center;gap:6px}
.tx-nav a{padding:8px 16px;border-radius:8px;font-size:.9rem;color:var(--tx-gray);font-weight:500;transition:all .3s}
.tx-nav a:hover,.tx-nav a.active{color:var(--tx-white);background:rgba(255,107,157,.12)}
.tx-nav-toggle{display:none;background:none;border:none;color:var(--tx-white);font-size:1.5rem;cursor:pointer;padding:8px}

/* === 搜索框 === */
.tx-search-bar{background:var(--tx-card);border-bottom:1px solid var(--tx-border);padding:12px 0;margin-top:68px}
.tx-search-wrap{display:flex;align-items:center;max-width:680px;margin:0 auto;background:var(--tx-card2);border:1px solid var(--tx-border);border-radius:40px;overflow:hidden;padding:4px}
.tx-search-wrap input{flex:1;background:transparent;border:none;outline:none;color:var(--tx-white);padding:10px 20px;font-size:.95rem}
.tx-search-wrap input::placeholder{color:var(--tx-gray)}
.tx-search-wrap button{background:var(--tx-gradient);border:none;color:#fff;padding:10px 28px;border-radius:36px;cursor:pointer;font-size:.9rem;font-weight:600;transition:opacity .3s}
.tx-search-wrap button:hover{opacity:.85}

/* === Hero Banner === */
.tx-hero{position:relative;overflow:hidden;min-height:520px;display:flex;align-items:center}
.tx-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tx-hero-overlay{position:relative;z-index:2;width:100%;padding:80px 0;background:linear-gradient(90deg,rgba(26,16,40,.88) 0%,rgba(26,16,40,.55) 60%,transparent 100%)}
.tx-hero-content{max-width:620px;padding:0 40px}
.tx-hero h1{font-size:2.6rem;margin-bottom:16px;background:var(--tx-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-hero h1 small{display:block;font-size:1.1rem;font-weight:400;-webkit-text-fill-color:var(--tx-gray);margin-top:8px}
.tx-hero p{font-size:1.05rem;color:var(--tx-gray);margin-bottom:24px;line-height:1.8}
.tx-hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.tx-hero-tags span{background:rgba(255,107,157,.15);color:var(--tx-pink);padding:6px 16px;border-radius:20px;font-size:.82rem;border:1px solid rgba(255,107,157,.25)}

/* === 通用模块标题 === */
.tx-section{padding:60px 0}
.tx-section-head{text-align:center;margin-bottom:40px}
.tx-section-head h2{font-size:1.9rem;margin-bottom:10px}
.tx-section-head h2 em{font-style:normal;background:var(--tx-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-section-head p{color:var(--tx-gray);font-size:.95rem;max-width:600px;margin:0 auto}

/* === 视频卡片网格 === */
.tx-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tx-video-card{background:var(--tx-card);border-radius:var(--tx-radius);overflow:hidden;border:1px solid var(--tx-border);transition:transform .35s,box-shadow .35s}
.tx-video-card:hover{transform:translateY(-6px);box-shadow:var(--tx-shadow)}
.tx-video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.tx-video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tx-video-card:hover .tx-video-thumb img{transform:scale(1.06)}
.tx-video-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(26,16,40,.45);opacity:0;transition:opacity .35s}
.tx-video-card:hover .tx-video-play{opacity:1}
.tx-video-play i{width:56px;height:56px;background:var(--tx-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff;box-shadow:0 4px 20px rgba(255,107,157,.4)}
.tx-video-play i::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.tx-video-info{padding:16px}
.tx-video-info h4{font-size:1rem;margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx-video-info p{color:var(--tx-gray);font-size:.82rem;display:flex;gap:12px;flex-wrap:wrap}
.tx-video-info .tx-tag{background:rgba(196,77,255,.15);color:var(--tx-purple);padding:2px 10px;border-radius:10px;font-size:.75rem}
.tx-video-stats{display:flex;gap:14px;margin-top:8px;color:var(--tx-gray);font-size:.78rem}
.tx-video-stats span::before{margin-right:4px}
.tx-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}

/* === 影视传媒模块 === */
.tx-media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tx-media-item{background:var(--tx-card);border-radius:var(--tx-radius);padding:28px 24px;border:1px solid var(--tx-border);text-align:center;transition:all .35s}
.tx-media-item:hover{border-color:var(--tx-pink);box-shadow:var(--tx-shadow);transform:translateY(-4px)}
.tx-media-icon{width:60px;height:60px;margin:0 auto 16px;background:var(--tx-gradient);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.6rem}
.tx-media-item h4{font-size:1.05rem;margin-bottom:8px}
.tx-media-item p{color:var(--tx-gray);font-size:.85rem}

/* === AI赋能模块 === */
.tx-ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tx-ai-card{background:linear-gradient(145deg,var(--tx-card),var(--tx-card2));border-radius:var(--tx-radius-lg);padding:32px;border:1px solid var(--tx-border);position:relative;overflow:hidden;transition:all .35s}
.tx-ai-card::before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(196,77,255,.08),transparent);pointer-events:none}
.tx-ai-card:hover{border-color:var(--tx-purple);transform:translateY(-4px)}
.tx-ai-card h4{font-size:1.1rem;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.tx-ai-card h4 span{background:var(--tx-gradient2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:.75rem;font-weight:600}
.tx-ai-card p{color:var(--tx-gray);font-size:.88rem}

/* === 社区功能 === */
.tx-community-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tx-community-card{background:var(--tx-card);border-radius:var(--tx-radius);padding:24px 20px;text-align:center;border:1px solid var(--tx-border);transition:all .3s}
.tx-community-card:hover{border-color:var(--tx-orange);background:var(--tx-card2)}
.tx-community-card .cc-icon{font-size:2rem;margin-bottom:12px;display:block}
.tx-community-card h5{font-size:.95rem;margin-bottom:6px}
.tx-community-card p{color:var(--tx-gray);font-size:.8rem}

/* === 专家展示 === */
.tx-expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tx-expert-card{background:var(--tx-card);border-radius:var(--tx-radius-lg);overflow:hidden;border:1px solid var(--tx-border);text-align:center;transition:all .35s}
.tx-expert-card:hover{transform:translateY(-6px);box-shadow:var(--tx-shadow)}
.tx-expert-card img{width:100%;aspect-ratio:1;object-fit:cover}
.tx-expert-body{padding:20px 16px}
.tx-expert-body h4{font-size:1rem;margin-bottom:4px}
.tx-expert-body .ex-title{color:var(--tx-pink);font-size:.82rem;margin-bottom:8px}
.tx-expert-body p{color:var(--tx-gray);font-size:.8rem;margin-bottom:12px}
.tx-expert-btns{display:flex;gap:8px;justify-content:center}
.tx-expert-btns a{padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:600;transition:all .3s}
.tx-expert-btns .btn-contact{background:var(--tx-gradient);color:#fff}
.tx-expert-btns .btn-works{border:1px solid var(--tx-pink);color:var(--tx-pink)}
.tx-expert-btns .btn-works:hover{background:var(--tx-pink);color:#fff}

/* === 合作品牌墙 === */
.tx-brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;padding:20px 0}
.tx-brand-wall .bw-item{background:var(--tx-card);border:1px solid var(--tx-border);border-radius:var(--tx-radius);padding:16px 32px;font-size:.9rem;font-weight:600;color:var(--tx-gray);transition:all .3s;min-width:140px;text-align:center}
.tx-brand-wall .bw-item:hover{border-color:var(--tx-pink);color:var(--tx-white);background:var(--tx-card2)}

/* === How-To指南 === */
.tx-howto{background:var(--tx-card);border-radius:var(--tx-radius-lg);padding:40px;border:1px solid var(--tx-border)}
.tx-howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}
.tx-howto-step{text-align:center;position:relative}
.tx-howto-step .step-num{width:48px;height:48px;background:var(--tx-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;margin:0 auto 12px;color:#fff}
.tx-howto-step h5{font-size:.95rem;margin-bottom:6px}
.tx-howto-step p{color:var(--tx-gray);font-size:.82rem}

/* === FAQ === */
.tx-faq-list{max-width:800px;margin:0 auto}
.tx-faq-item{background:var(--tx-card);border:1px solid var(--tx-border);border-radius:var(--tx-radius);margin-bottom:12px;overflow:hidden}
.tx-faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:background .3s}
.tx-faq-q:hover{background:var(--tx-card2)}
.tx-faq-q::after{content:"+";font-size:1.3rem;color:var(--tx-pink);transition:transform .3s}
.tx-faq-item.open .tx-faq-q::after{transform:rotate(45deg)}
.tx-faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease}
.tx-faq-item.open .tx-faq-a{max-height:300px;padding:0 24px 18px}
.tx-faq-a p{color:var(--tx-gray);font-size:.88rem;line-height:1.7}

/* === 用户评论 === */
.tx-review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.tx-review-card{background:var(--tx-card);border-radius:var(--tx-radius);padding:24px;border:1px solid var(--tx-border)}
.tx-review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tx-review-head .rv-avatar{width:44px;height:44px;border-radius:50%;background:var(--tx-gradient);display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:700;color:#fff;flex-shrink:0}
.tx-review-head .rv-info h5{font-size:.9rem;margin-bottom:2px}
.tx-review-head .rv-info span{color:var(--tx-gray);font-size:.78rem}
.tx-review-stars{color:var(--tx-orange);font-size:.85rem;margin-bottom:8px;letter-spacing:2px}
.tx-review-card p{color:var(--tx-gray);font-size:.88rem;line-height:1.7}

/* === 社交分享 === */
.tx-share-bar{display:flex;justify-content:center;gap:12px;padding:20px 0;flex-wrap:wrap}
.tx-share-btn{padding:10px 22px;border-radius:24px;font-size:.85rem;font-weight:600;color:#fff;cursor:pointer;border:none;transition:all .3s}
.tx-share-btn:hover{opacity:.85;transform:translateY(-2px)}
.tx-share-btn.s-wechat{background:#07C160}
.tx-share-btn.s-weibo{background:#E6162D}
.tx-share-btn.s-douyin{background:#161823}
.tx-share-btn.s-bilibili{background:#00A1D6}
.tx-share-btn.s-qq{background:#12B7F5}

/* === 页脚 === */
.tx-footer{background:var(--tx-card);border-top:1px solid var(--tx-border);padding:48px 0 0}
.tx-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.tx-footer-brand img{height:40px;margin-bottom:12px}
.tx-footer-brand p{color:var(--tx-gray);font-size:.85rem;margin-bottom:16px}
.tx-footer h5{font-size:.95rem;margin-bottom:14px;color:var(--tx-white)}
.tx-footer a{display:block;color:var(--tx-gray);font-size:.85rem;margin-bottom:8px;transition:color .3s}
.tx-footer a:hover{color:var(--tx-pink)}
.tx-footer-qr{display:flex;gap:16px;margin-top:12px}
.tx-footer-qr img{width:100px;height:100px;border-radius:8px;border:1px solid var(--tx-border)}
.tx-footer-bottom{border-top:1px solid var(--tx-border);padding:20px 0;text-align:center}
.tx-footer-bottom p{color:var(--tx-gray);font-size:.82rem;margin-bottom:4px}
.tx-footer-bottom a{display:inline;margin:0 6px}

/* === MCP服务前端 === */
.tx-mcp{background:var(--tx-card2);border:1px solid var(--tx-border);border-radius:var(--tx-radius);padding:16px 20px;margin-top:16px}
.tx-mcp-header{font-size:.85rem;font-weight:600;margin-bottom:8px;color:var(--tx-pink)}
.tx-mcp-status{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--tx-gray)}
.tx-mcp-dot{width:8px;height:8px;border-radius:50%;background:#4ADE80;display:inline-block;animation:mcpPulse 2s infinite}
@keyframes mcpPulse{0%,100%{opacity:1}50%{opacity:.4}}

/* === 内页通用 === */
.tx-page-banner{padding:100px 0 40px;background:linear-gradient(135deg,var(--tx-card),var(--tx-dark));text-align:center}
.tx-page-banner h1{font-size:2rem;margin-bottom:10px}
.tx-page-banner .tx-breadcrumb{color:var(--tx-gray);font-size:.85rem}
.tx-page-banner .tx-breadcrumb a{color:var(--tx-pink)}
.tx-page-content{padding:48px 0}
.tx-page-content h2{font-size:1.5rem;margin:32px 0 16px;color:var(--tx-white)}
.tx-page-content h3{font-size:1.2rem;margin:24px 0 12px;color:var(--tx-pink)}
.tx-page-content p{color:var(--tx-gray);font-size:.92rem;margin-bottom:16px;line-height:1.8}
.tx-page-content ul{margin:12px 0 16px 20px}
.tx-page-content ul li{color:var(--tx-gray);font-size:.9rem;margin-bottom:8px;position:relative;padding-left:16px}
.tx-page-content ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--tx-pink)}

/* === 联系页面 === */
.tx-contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tx-contact-card{background:var(--tx-card);border:1px solid var(--tx-border);border-radius:var(--tx-radius);padding:28px}
.tx-contact-card h4{font-size:1.05rem;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.tx-contact-card p{color:var(--tx-gray);font-size:.88rem;margin-bottom:8px}

/* === 回到顶部 === */
.tx-scroll-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:var(--tx-gradient);border:none;border-radius:50%;color:#fff;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;z-index:999;display:flex;align-items:center;justify-content:center;box-shadow:var(--tx-shadow)}
.tx-scroll-top.visible{opacity:1;visibility:visible}
.tx-scroll-top:hover{transform:translateY(-3px)}

/* === 声明横幅 === */
.tx-notice{background:var(--tx-card2);border:1px solid var(--tx-border);border-radius:var(--tx-radius);padding:16px 24px;margin-bottom:24px}
.tx-notice p{color:var(--tx-gray);font-size:.82rem}
.tx-notice strong{color:var(--tx-pink)}

/* === 响应式 === */
@media(max-width:1024px){
  .tx-video-grid,.tx-media-grid,.tx-ai-grid{grid-template-columns:repeat(2,1fr)}
  .tx-expert-grid,.tx-community-grid{grid-template-columns:repeat(2,1fr)}
  .tx-footer-grid{grid-template-columns:repeat(2,1fr)}
  .tx-howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .tx-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(26,16,40,.98);flex-direction:column;padding:20px;gap:4px;transform:translateY(-120%);transition:transform .35s;border-bottom:1px solid var(--tx-border)}
  .tx-nav.open{transform:translateY(0)}
  .tx-nav a{width:100%;text-align:center;padding:12px}
  .tx-nav-toggle{display:block}
  .tx-hero h1{font-size:1.8rem}
  .tx-hero-content{padding:0 20px}
  .tx-video-grid,.tx-media-grid,.tx-ai-grid,.tx-review-grid,.tx-contact-grid{grid-template-columns:1fr}
  .tx-expert-grid,.tx-community-grid{grid-template-columns:repeat(2,1fr)}
  .tx-footer-grid{grid-template-columns:1fr}
  .tx-howto-steps{grid-template-columns:1fr}
  .tx-section{padding:40px 0}
  .tx-section-head h2{font-size:1.5rem}
  .tx-hero{min-height:400px}
}
@media(max-width:480px){
  .tx-expert-grid,.tx-community-grid{grid-template-columns:1fr}
  .tx-hero h1{font-size:1.5rem}
  .tx-search-wrap{flex-direction:column;border-radius:16px;padding:8px}
  .tx-search-wrap input{width:100%;text-align:center}
  .tx-search-wrap button{width:100%;border-radius:12px}
}