/* ============================================
   强上 - 原创样式表
   品牌色系：糖心粉红 #E8456B / 暖橙 #FF7E5F / 深邃夜空 #1A1A2E
   ============================================ */

/* === 基础重置 === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#2D2D3A;background:#F5F0FF;line-height:1.7;overflow-x:hidden}
a{color:#E8456B;text-decoration:none;transition:color .3s}
a:hover{color:#FF7E5F}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#1A1A2E}

/* === 通用容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px;position:relative;padding-bottom:15px}
.section-title::after{content:"";display:block;width:80px;height:4px;background:linear-gradient(90deg,#E8456B,#FF7E5F);margin:12px auto 0;border-radius:2px}
.section-title h2{font-size:28px;color:#1A1A2E}
.section-title p{color:#666;font-size:15px;margin-top:8px}
.section-padding{padding:60px 0}

/* === 顶部导航 === */
.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;height:68px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap span{color:#fff;font-size:20px;font-weight:700;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav>li{position:relative}
.main-nav>li>a{color:#ddd;font-size:15px;padding:10px 14px;display:block;border-radius:6px;transition:all .3s}
.main-nav>li>a:hover,.main-nav>li.active>a{color:#fff;background:linear-gradient(135deg,#E8456B,#FF7E5F);box-shadow:0 2px 12px rgba(232,69,107,.4)}
.nav-dropdown{position:absolute;top:100%;left:0;background:#1A1A2E;border-radius:0 0 8px 8px;min-width:160px;display:none;box-shadow:0 8px 24px rgba(0,0,0,.3);padding:8px 0}
.main-nav>li:hover .nav-dropdown{display:block}
.nav-dropdown a{display:block;color:#ccc;padding:8px 20px;font-size:14px;transition:all .3s}
.nav-dropdown a:hover{color:#fff;background:rgba(232,69,107,.2);padding-left:26px}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer}

/* === 搜索框 === */
.search-bar{background:linear-gradient(135deg,#1A1A2E 0%,#2D1B4E 100%);padding:16px 0}
.search-wrap{display:flex;max-width:600px;margin:0 auto;border-radius:30px;overflow:hidden;box-shadow:0 4px 20px rgba(232,69,107,.2)}
.search-wrap input{flex:1;border:none;padding:12px 24px;font-size:15px;outline:none;background:#fff;color:#333}
.search-wrap input::placeholder{color:#999}
.search-wrap button{background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border:none;padding:12px 28px;font-size:15px;cursor:pointer;transition:opacity .3s;font-weight:600}
.search-wrap button:hover{opacity:.9}

/* === Banner区域 === */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero-banner .banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,26,46,.3) 0%,rgba(26,26,46,.85) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px;padding:0 20px}
.hero-content h1{font-size:42px;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero-content h1 span{color:#FF7E5F}
.hero-content p{font-size:18px;line-height:1.8;opacity:.92;margin-bottom:24px}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:all .3s;box-shadow:0 4px 16px rgba(232,69,107,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(232,69,107,.5);color:#fff}
.btn-outline{display:inline-block;padding:12px 32px;border:2px solid #fff;color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:all .3s}
.btn-outline:hover{background:#fff;color:#1A1A2E}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(232,69,107,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;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(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn::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:4px}
.video-card .card-info{padding:16px}
.video-card .card-info h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;gap:16px;color:#999;font-size:13px}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .tag{position:absolute;top:12px;left:12px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;z-index:2}
.video-card .duration{position:absolute;bottom:12px;right:12px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:2}

/* === 明星传媒模块 === */
.star-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.star-card{position:relative;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.1);transition:all .4s}
.star-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 16px 40px rgba(232,69,107,.2)}
.star-card img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .5s}
.star-card:hover img{transform:scale(1.06)}
.star-card .star-info{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(26,26,46,.9));padding:40px 16px 16px;color:#fff}
.star-card .star-info h3{font-size:18px;margin-bottom:4px}
.star-card .star-info p{font-size:13px;opacity:.85}

/* === 娱乐专区 === */
.entertainment-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ent-card{background:#fff;border-radius:12px;padding:30px 20px;text-align:center;transition:all .3s;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.ent-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(232,69,107,.12)}
.ent-card .ent-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff}
.ent-card h4{font-size:16px;margin-bottom:8px}
.ent-card p{font-size:13px;color:#666;line-height:1.6}

/* === AI赋能模块 === */
.ai-section{background:linear-gradient(135deg,#1A1A2E 0%,#2D1B4E 100%);color:#fff}
.ai-section .section-title h2{color:#fff}
.ai-section .section-title p{color:#bbb}
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-feature-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:32px 24px;text-align:center;transition:all .3s;backdrop-filter:blur(10px)}
.ai-feature-card:hover{background:rgba(232,69,107,.15);border-color:rgba(232,69,107,.3);transform:translateY(-4px)}
.ai-feature-card .ai-icon{width:72px;height:72px;margin:0 auto 20px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px}
.ai-feature-card h4{font-size:18px;margin-bottom:10px}
.ai-feature-card p{font-size:14px;color:#bbb;line-height:1.7}

/* === 社区功能 === */
.community-banner{position:relative;border-radius:16px;overflow:hidden;margin-bottom:30px}
.community-banner img{width:100%;height:300px;object-fit:cover}
.community-features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.comm-card{background:#fff;border-radius:12px;padding:24px;text-align:center;transition:all .3s;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.comm-card:hover{box-shadow:0 8px 28px rgba(232,69,107,.12);transform:translateY(-4px)}
.comm-card h4{font-size:16px;margin:12px 0 8px;color:#1A1A2E}
.comm-card p{font-size:13px;color:#666}
.comm-icon{width:56px;height:56px;margin:0 auto;background:linear-gradient(135deg,#E8456B22,#FF7E5F22);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(232,69,107,.12)}
.expert-card .expert-photo{width:100%;aspect-ratio:1;object-fit:cover}
.expert-card .expert-info{padding:20px}
.expert-card .expert-info h4{font-size:18px;margin-bottom:4px}
.expert-card .expert-info .expert-title{color:#E8456B;font-size:14px;margin-bottom:10px}
.expert-card .expert-info p{font-size:13px;color:#666;line-height:1.6;margin-bottom:12px}
.expert-card .expert-btns{display:flex;gap:10px}
.expert-card .expert-btns a{flex:1;text-align:center;padding:8px;border-radius:8px;font-size:13px;font-weight:600;transition:all .3s}
.expert-card .expert-btns .btn-contact{background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff}
.expert-card .expert-btns .btn-works{border:1px solid #E8456B;color:#E8456B}
.expert-card .expert-btns .btn-works:hover{background:#E8456B;color:#fff}

/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{width:140px;height:70px;background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(0,0,0,.06);transition:all .3s;padding:10px;font-size:14px;color:#666;font-weight:600}
.brand-wall .brand-item:hover{box-shadow:0 6px 20px rgba(232,69,107,.15);transform:scale(1.05)}

/* === FAQ模块 === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq-item .faq-q{padding:18px 24px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s;color:#1A1A2E}
.faq-item .faq-q:hover{background:#F5F0FF}
.faq-item .faq-q .arrow{transition:transform .3s;font-size:20px;color:#E8456B}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:#555;font-size:14px;line-height:1.8}
.faq-item.open .faq-a{padding:0 24px 18px;max-height:500px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .3s}
.review-card:hover{box-shadow:0 8px 24px rgba(232,69,107,.1);transform:translateY(-3px)}
.review-card .review-stars{color:#FFD93D;font-size:16px;margin-bottom:10px}
.review-card .review-text{font-size:14px;color:#555;line-height:1.7;margin-bottom:14px;font-style:italic}
.review-card .review-author{display:flex;align-items:center;gap:10px}
.review-card .review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700}
.review-card .review-name{font-size:14px;font-weight:600}
.review-card .review-date{font-size:12px;color:#999}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.contact-info-card{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.contact-info-card h3{font-size:20px;margin-bottom:20px;color:#1A1A2E}
.contact-item{display:flex;gap:12px;margin-bottom:16px;align-items:flex-start}
.contact-item .ci-icon{width:40px;height:40px;background:linear-gradient(135deg,#E8456B22,#FF7E5F22);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.contact-item .ci-text h5{font-size:14px;font-weight:600;margin-bottom:2px}
.contact-item .ci-text p{font-size:13px;color:#666}
.contact-qr{display:flex;gap:20px;margin-top:20px}
.contact-qr .qr-item{text-align:center}
.contact-qr .qr-item img{width:140px;height:140px;border-radius:8px;margin-bottom:8px}
.contact-qr .qr-item p{font-size:12px;color:#666}

/* === 社交分享 === */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:24px;font-size:14px;font-weight:600;color:#fff;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:#1A1A2E;color:#ccc;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";display:block;width:30px;height:3px;background:linear-gradient(90deg,#E8456B,#FF7E5F);position:absolute;bottom:0;left:0;border-radius:2px}
.footer-col p{font-size:13px;line-height:1.8;color:#999}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:#999;font-size:13px;transition:all .3s}
.footer-col ul li a:hover{color:#E8456B;padding-left:4px}
.footer-col .footer-logo{height:36px;margin-bottom:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:#777}
.footer-bottom a{color:#E8456B}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:13px;color:#999}
.breadcrumb a{color:#E8456B}
.breadcrumb span{margin:0 6px;color:#ccc}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#1A1A2E,#2D1B4E);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:36px;color:#fff;margin-bottom:10px}
.page-hero p{font-size:16px;opacity:.85}
.content-section{padding:40px 0}
.content-section h2{font-size:24px;margin-bottom:20px;color:#1A1A2E}
.content-section p{font-size:15px;line-height:1.8;color:#555;margin-bottom:16px}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06);position:relative}
.howto-step .step-num{width:40px;height:40px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;margin:0 auto 14px}
.howto-step h4{font-size:16px;margin-bottom:8px}
.howto-step p{font-size:13px;color:#666}

/* === 懒加载占位 === */
.lazy-img{opacity:0;transition:opacity .5s}
.lazy-img.loaded{opacity:1}

/* === 响应式 === */
@media(max-width:1024px){
  .entertainment-grid{grid-template-columns:repeat(2,1fr)}
  .ai-features{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .community-features{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;flex-direction:column;width:100%;padding:10px 0;background:#1A1A2E}
  .main-nav.show{display:flex}
  .mobile-menu-btn{display:block}
  .hero-banner{height:400px}
  .hero-content h1{font-size:28px}
  .hero-content p{font-size:15px}
  .video-grid{grid-template-columns:1fr}
  .star-grid{grid-template-columns:repeat(2,1fr)}
  .entertainment-grid{grid-template-columns:1fr}
  .ai-features{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .community-features{grid-template-columns:1fr}
  .section-padding{padding:40px 0}
  .section-title h2{font-size:22px}
}
@media(max-width:480px){
  .hero-banner{height:320px}
  .hero-content h1{font-size:22px}
  .star-grid{grid-template-columns:1fr}
  .search-wrap{flex-direction:column;border-radius:12px}
  .search-wrap button{border-radius:0 0 12px 12px}
}

/* === 视频模态框 === */
.video-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px}
.video-modal{background:#1A1A2E;border-radius:16px;width:100%;max-width:800px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.video-modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1);color:#fff}
.video-modal-header span{font-size:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:calc(100% - 40px)}
.video-modal-close{background:none;border:none;color:#fff;font-size:28px;cursor:pointer;transition:color .3s;line-height:1}
.video-modal-close:hover{color:#E8456B}
.video-modal-body{position:relative}
.video-player-mock{position:relative;padding-top:56.25%;background:#000}
.video-player-mock img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.7}
.video-player-controls{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.8));padding:12px 16px;display:flex;align-items:center;gap:12px}
.vp-play-btn{width:32px;height:32px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;cursor:pointer;transition:background .3s;flex-shrink:0}
.vp-play-btn:hover{background:#E8456B}
.vp-progress{flex:1;height:4px;background:rgba(255,255,255,.2);border-radius:2px;overflow:hidden;cursor:pointer}
.vp-progress-bar{height:100%;background:linear-gradient(90deg,#E8456B,#FF7E5F);width:0;border-radius:2px;transition:width .1s linear}
.vp-time{color:#ccc;font-size:12px;white-space:nowrap}
.vp-fullscreen{color:#ccc;font-size:16px;cursor:pointer;transition:color .3s}
.vp-fullscreen:hover{color:#fff}
.vp-center-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:72px;height:72px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;cursor:pointer;transition:all .3s;box-shadow:0 4px 20px rgba(232,69,107,.4)}
.vp-center-play:hover{background:#E8456B;transform:translate(-50%,-50%) scale(1.1)}

/* === 返回顶部 === */
.back-to-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;z-index:999;opacity:0;transform:translateY(20px);transition:all .3s;box-shadow:0 4px 16px rgba(232,69,107,.3)}
.back-to-top.show{opacity:1;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-3px);box-shadow:0 6px 24px rgba(232,69,107,.5)}

/* === 滚动动画 === */
.video-card,.star-card,.ent-card,.ai-feature-card,.comm-card,.expert-card,.review-card,.howto-step,.faq-item{opacity:0;transform:translateY(30px);transition:all .6s ease-out}
.animate-in{opacity:1!important;transform:translateY(0)!important}

/* === 导航滚动效果 === */
.site-header.scrolled{box-shadow:0 4px 30px rgba(0,0,0,.4);background:rgba(26,26,46,.97)}

/* === 播放按钮可见状态 === */
.play-btn.visible{opacity:1!important}

/* === 懒加载图片src为空时的占位 === */
img.lazy-img:not([src]){background:#eee}
img.lazy-img[data-src]{background:linear-gradient(135deg,#f0f0f0,#e0e0e0)}