/* ========================================
   会议室偷情影视传媒 - 全站样式表
   品牌色: #C41E3A (会议室偷情红) 
   辅助色: #1A1A2E (深夜蓝) #16213E (暗蓝) #0F3460 (海军蓝)
   点缀色: #E94560 (玫瑰红) #FFD700 (金色)
   ======================================== */

/* === Reset & Base === */
*,*::before,*::after{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","Helvetica Neue",Arial,sans-serif;color:#333;background:#fafafa;line-height:1.7;overflow-x:hidden}
a{color:#C41E3A;text-decoration:none;transition:color .3s}
a:hover{color:#E94560}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === Header === */
.site-header{background:#1A1A2E;position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:45px;width:auto}
.logo-wrap .brand-text{color:#fff;font-size:1.4rem;font-weight:700;letter-spacing:2px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#ddd;padding:12px 16px;font-size:.95rem;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#FFD700}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:#C41E3A;transition:width .3s}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.mobile-menu-btn{display:none;color:#fff;font-size:1.5rem;cursor:pointer;background:none;border:none}

/* === Search Bar === */
.search-bar{background:#16213E;padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%}
.search-box input{flex:1;padding:10px 18px;border:2px solid #0F3460;border-right:none;border-radius:25px 0 0 25px;background:#1A1A2E;color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#C41E3A}
.search-box input::placeholder{color:#888}
.search-box button{padding:10px 25px;background:#C41E3A;color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:.95rem;transition:background .3s}
.search-box button:hover{background:#E94560}

/* === Hero Banner === */
.hero-section{position:relative;height:520px;overflow:hidden;background:#1A1A2E}
.hero-section .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.hero-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:15px;text-shadow:0 2px 15px rgba(0,0,0,.5)}
.hero-content h1 .brand-highlight{color:#FFD700}
.hero-content p{font-size:1.2rem;max-width:700px;margin-bottom:25px;opacity:.9}
.hero-btns{display:flex;gap:15px;flex-wrap:wrap;justify-content:center}
.btn{display:inline-block;padding:12px 30px;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:#C41E3A;color:#fff}
.btn-primary:hover{background:#E94560;color:#fff;transform:translateY(-2px);box-shadow:0 5px 20px rgba(196,30,58,.4)}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#1A1A2E}

/* === Section Common === */
.section{padding:60px 0}
.section-dark{background:#1A1A2E;color:#fff}
.section-gray{background:#f0f0f5}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;font-weight:700;color:#1A1A2E;margin-bottom:10px}
.section-dark .section-title h2{color:#FFD700}
.section-title p{color:#666;font-size:1.05rem;max-width:600px;margin:0 auto}
.section-dark .section-title p{color:#ccc}
.section-title .tag{display:inline-block;background:#C41E3A;color:#fff;padding:3px 12px;border-radius:15px;font-size:.8rem;margin-bottom:8px}

/* === Video Cards Grid === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.15)}
.video-card .thumb{position:relative;padding-top:133%;overflow:hidden}
.video-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .thumb img{transform:scale(1.05)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(196,30,58,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:3}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:'';border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card .card-info{padding:12px 15px}
.video-card .card-title{font-size:.95rem;font-weight:600;color:#1A1A2E;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;justify-content:space-between;font-size:.8rem;color:#999}
.video-card .card-meta span{display:flex;align-items:center;gap:3px}
.video-card .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;z-index:2}
.video-card .tag-label{position:absolute;top:8px;left:8px;background:#C41E3A;color:#fff;padding:2px 10px;border-radius:4px;font-size:.75rem;z-index:2}

/* === Feature Grid === */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.feature-card{background:#fff;border-radius:12px;padding:30px 25px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,.12)}
.feature-card .icon{width:65px;height:65px;margin:0 auto 15px;background:linear-gradient(135deg,#C41E3A,#E94560);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.feature-card h3{font-size:1.15rem;color:#1A1A2E;margin-bottom:8px}
.feature-card p{font-size:.9rem;color:#666;line-height:1.6}

/* === Expert Section === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:transform .3s}
.expert-card:hover{transform:translateY(-5px)}
.expert-card .avatar{width:100%;aspect-ratio:1;object-fit:cover}
.expert-card .info{padding:15px;text-align:center}
.expert-card .name{font-size:1.1rem;font-weight:700;color:#1A1A2E;margin-bottom:4px}
.expert-card .role{font-size:.85rem;color:#C41E3A;margin-bottom:8px}
.expert-card .desc{font-size:.82rem;color:#666;line-height:1.5;margin-bottom:10px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:5px 14px;border-radius:20px;font-size:.8rem}

/* === Partner Logos === */
.partner-logos{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:40px;padding:20px 0}
.partner-logos .partner-item{display:flex;flex-direction:column;align-items:center;gap:8px;opacity:.7;transition:opacity .3s;filter:grayscale(100%)}
.partner-logos .partner-item:hover{opacity:1;filter:grayscale(0)}
.partner-logos .partner-icon{width:60px;height:60px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.partner-logos .partner-name{font-size:.8rem;color:#999}

/* === FAQ Section === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq-question{padding:18px 25px;font-size:1rem;font-weight:600;color:#1A1A2E;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:#f8f8fa}
.faq-question .arrow{transition:transform .3s;font-size:.8rem;color:#C41E3A}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;font-size:.92rem;color:#555;line-height:1.7}
.faq-item.active .faq-answer{max-height:300px;padding:0 25px 18px}

/* === Reviews === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:12px;padding:25px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:45px;height:45px;border-radius:50%;background:#C41E3A;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;color:#1A1A2E}
.review-date{font-size:.8rem;color:#999}
.review-stars{color:#FFD700;margin-bottom:8px;font-size:.9rem}
.review-text{font-size:.92rem;color:#555;line-height:1.6}

/* === Contact Section === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.contact-info-card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.contact-info-card h3{font-size:1.2rem;color:#1A1A2E;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #C41E3A}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:15px;font-size:.92rem;color:#555}
.contact-item .ci-label{font-weight:600;color:#1A1A2E;min-width:80px}
.qrcode-grid{display:flex;gap:25px;justify-content:center;margin-top:15px}
.qrcode-item{text-align:center}
.qrcode-item img{width:150px;height:150px;border-radius:8px;margin-bottom:8px}
.qrcode-item p{font-size:.85rem;color:#666}

/* === Social Share === */
.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 20px;border-radius:25px;font-size:.9rem;color:#fff;transition:transform .3s,opacity .3s}
.share-btn:hover{transform:translateY(-2px);opacity:.9;color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* === Footer === */
.site-footer{background:#0d0d1a;color:#aaa;padding:40px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:30px;border-bottom:1px solid #222}
.footer-brand .footer-logo{height:40px;margin-bottom:12px}
.footer-brand p{font-size:.88rem;line-height:1.6;color:#888}
.footer-col h4{color:#FFD700;font-size:1rem;margin-bottom:15px}
.footer-col a{display:block;color:#888;font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#C41E3A}
.footer-bottom{text-align:center;padding:20px 0;font-size:.85rem;color:#666}
.footer-bottom .update-time{margin-top:5px;font-size:.8rem;color:#555}

/* === Breadcrumb === */
.breadcrumb{padding:12px 0;font-size:.88rem;color:#999}
.breadcrumb a{color:#C41E3A}
.breadcrumb span{margin:0 6px;color:#ccc}

/* === How-To Guide === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:20px}
.howto-step{text-align:center;padding:25px 15px;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.howto-step .step-num{width:45px;height:45px;background:#C41E3A;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 12px}
.howto-step h4{font-size:1rem;color:#1A1A2E;margin-bottom:6px}
.howto-step p{font-size:.85rem;color:#666}

/* === Community Features === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{background:linear-gradient(135deg,#1A1A2E,#16213E);border-radius:12px;padding:25px;text-align:center;color:#fff;transition:transform .3s}
.community-card:hover{transform:translateY(-5px)}
.community-card .comm-icon{font-size:2.5rem;margin-bottom:12px}
.community-card h4{font-size:1.05rem;margin-bottom:8px;color:#FFD700}
.community-card p{font-size:.88rem;color:#ccc;line-height:1.5}

/* === AI Section === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.ai-card{background:#fff;border-radius:12px;padding:25px;border-left:4px solid #C41E3A;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:transform .3s}
.ai-card:hover{transform:translateY(-3px)}
.ai-card h4{font-size:1.05rem;color:#1A1A2E;margin-bottom:8px}
.ai-card p{font-size:.9rem;color:#666;line-height:1.6}
.ai-card .ai-tag{display:inline-block;background:#f0f0f5;color:#C41E3A;padding:2px 10px;border-radius:10px;font-size:.78rem;margin-top:8px}

/* === Entertainment Grid === */
.ent-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.ent-item{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:3/4}
.ent-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ent-item:hover img{transform:scale(1.08)}
.ent-overlay{position:absolute;inset:0;background:linear-gradient(transparent 50%,rgba(0,0,0,.7));display:flex;flex-direction:column;justify-content:flex-end;padding:15px;color:#fff}
.ent-overlay h4{font-size:.95rem;margin-bottom:3px}
.ent-overlay span{font-size:.8rem;opacity:.8}

/* === Responsive === */
@media(max-width:1024px){
  .video-grid,.expert-grid,.ent-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#1A1A2E;flex-direction:column;padding:10px 0;box-shadow:0 5px 20px rgba(0,0,0,.3)}
  .main-nav.show{display:flex}
  .mobile-menu-btn{display:block}
  .hero-content h1{font-size:1.8rem}
  .hero-section{height:400px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.ai-grid,.community-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:1fr}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:1.4rem}
}

/* === Animations === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* === MCP Frontend Placeholder === */
.mcp-widget{background:#16213E;border-radius:8px;padding:15px;margin-top:20px;text-align:center;color:#ccc;font-size:.85rem;border:1px dashed #333}