/* ============================================
   里番网 - 原创样式表
   品牌定位：国内影视传媒公司 + 视频社区
   配色方案：糖心粉红 + 梦幻紫 + 深夜蓝黑
   ============================================ */

/* === 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;background:#0d0d1a;color:#e0e0e0;line-height:1.7;overflow-x:hidden}
a{color:#ff6b9d;text-decoration:none;transition:color .3s}
a:hover{color:#e8436f}
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:#fff}

/* === 通用容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:2rem;background:linear-gradient(135deg,#e8436f,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;margin-bottom:12px}
.section-title p{color:#b0b0c0;font-size:1rem;max-width:600px;margin:0 auto}
.8iwmd{display:inline-block;background:linear-gradient(135deg,#e8436f,#7c3aed);color:#fff;font-size:.75rem;padding:4px 14px;border-radius:20px;margin-bottom:12px;letter-spacing:1px}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,13,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,67,111,.15);transition:background .3s}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:42px;width:auto}
.nav-logo span{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,#e8436f,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-menu{display:flex;gap:28px;align-items:center}
.nav-menu a{color:#ccc;font-size:.95rem;position:relative;padding:4px 0;transition:color .3s}
.nav-menu a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,#e8436f,#7c3aed);transition:width .3s}
.nav-menu a:hover,.nav-menu a.active{color:#fff}
.nav-menu a:hover::after,.nav-menu a.active::after{width:100%}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;transition:transform .3s}

/* === 搜索框 === */
.search-bar{background:rgba(22,33,62,.6);border-bottom:1px solid rgba(232,67,111,.1);padding:10px 0}
.search-wrap{display:flex;justify-content:center;align-items:center;gap:10px}
.search-wrap input{width:420px;max-width:70vw;padding:10px 20px;border:1px solid rgba(232,67,111,.3);border-radius:24px;background:rgba(15,52,96,.5);color:#fff;font-size:.9rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#e8436f}
.search-wrap input::placeholder{color:#777}
.search-wrap button{padding:10px 24px;border:none;border-radius:24px;background:linear-gradient(135deg,#e8436f,#7c3aed);color:#fff;font-size:.9rem;cursor:pointer;transition:opacity .3s}
.search-wrap button:hover{opacity:.85}

/* === Hero 区域 === */
.hero{position:relative;height:520px;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;margin-top:68px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.3) 0%,rgba(13,13,26,.85) 100%)}
.hero-content{position:relative;z-index:2;padding:0 20px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(232,67,111,.4)}
.hero-content h1 em{font-style:normal;background:linear-gradient(135deg,#e8436f,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:1.15rem;color:#ccc;max-width:600px;margin:0 auto 28px}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;border-radius:28px;background:linear-gradient(135deg,#e8436f,#7c3aed);color:#fff;font-size:1rem;font-weight:600;transition:transform .3s,box-shadow .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(232,67,111,.4);color:#fff}
.btn-outline{display:inline-block;padding:12px 32px;border-radius:28px;border:2px solid #e8436f;color:#e8436f;font-size:1rem;font-weight:600;transition:all .3s;background:transparent;cursor:pointer}
.btn-outline:hover{background:#e8436f;color:#fff}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:80px 0}
.video-card{position:relative;border-radius:14px;overflow:hidden;background:#16213e;transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(232,67,111,.25)}
.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 .4s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .p5oq7{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(232,67,111,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;z-index:3}
.video-card:hover .p5oq7{transform:translate(-50%,-50%) scale(1)}
.p5oq7::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 .wh2gzec4{padding:16px 18px}
.video-card .wh2gzec4 h3{font-size:1.05rem;margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.video-card .wh2gzec4 p{font-size:.85rem;color:#888;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .ryg56s{display:flex;gap:16px;font-size:.8rem;color:#666}
.video-card .ryg56s span{display:flex;align-items:center;gap:4px}
.dyl7s{position:absolute;top:12px;left:12px;background:linear-gradient(135deg,#e8436f,#7c3aed);color:#fff;font-size:.7rem;padding:3px 10px;border-radius:12px;z-index:3}
.j8404b{position:absolute;bottom:12px;right:12px;background:rgba(0,0,0,.7);color:#fff;font-size:.75rem;padding:2px 8px;border-radius:4px;z-index:3}

/* === 服务模块 === */
.services{padding:80px 0;background:linear-gradient(180deg,#0d0d1a 0%,#111128 100%)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-item{background:linear-gradient(145deg,#16213e,#1a1a3e);border:1px solid rgba(232,67,111,.1);border-radius:16px;padding:36px 28px;text-align:center;transition:transform .3s,border-color .3s}
.service-item:hover{transform:translateY(-4px);border-color:rgba(232,67,111,.4)}
.service-icon{width:64px;height:64px;margin:0 auto 20px;background:linear-gradient(135deg,rgba(232,67,111,.15),rgba(124,58,237,.15));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.service-item h3{font-size:1.15rem;margin-bottom:10px}
.service-item p{font-size:.9rem;color:#999;line-height:1.6}

/* === AI赋能区 === */
.ai-section{padding:80px 0;position:relative}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.ai-image{border-radius:16px;overflow:hidden;box-shadow:0 8px 32px rgba(124,58,237,.2)}
.ai-image img{width:100%;transition:transform .4s}
.ai-image:hover img{transform:scale(1.03)}
.ai-text h3{font-size:1.5rem;margin-bottom:16px}
.ai-text p{color:#b0b0c0;margin-bottom:16px;line-height:1.8}
.ai-features{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.ai-features span{background:rgba(124,58,237,.15);border:1px solid rgba(124,58,237,.3);color:#c4a8ff;padding:6px 16px;border-radius:20px;font-size:.85rem}

/* === 社区模块 === */
.community-section{padding:80px 0;background:#111128}
.community-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.community-features{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.i20v4loa{background:rgba(22,33,62,.8);border:1px solid rgba(232,67,111,.1);border-radius:12px;padding:20px;transition:border-color .3s}
.i20v4loa:hover{border-color:rgba(232,67,111,.4)}
.i20v4loa h4{font-size:1rem;margin-bottom:6px;color:#ff6b9d}
.i20v4loa p{font-size:.85rem;color:#999}

/* === 专家团队 === */
.expert-section{padding:80px 0}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.vdbyd3ao{background:#16213e;border-radius:16px;overflow:hidden;text-align:center;transition:transform .3s}
.vdbyd3ao:hover{transform:translateY(-4px)}
.opf3fv{width:100%;aspect-ratio:1;overflow:hidden}
.opf3fv img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.vdbyd3ao:hover .opf3fv img{transform:scale(1.05)}
.58uddhr{padding:20px 16px}
.58uddhr h3{font-size:1.05rem;margin-bottom:4px}
.58uddhr .role{color:#e8436f;font-size:.85rem;margin-bottom:8px}
.58uddhr p{font-size:.8rem;color:#999;margin-bottom:12px}
.dsbxy{display:flex;gap:10px;justify-content:center}
.dsbxy a{padding:6px 14px;border-radius:16px;font-size:.8rem;border:1px solid rgba(232,67,111,.3);color:#ff6b9d;transition:all .3s}
.dsbxy a:hover{background:#e8436f;color:#fff;border-color:#e8436f}

/* === 合作品牌 === */
.partners{padding:60px 0;background:#111128}
.partner-logos{display:flex;justify-content:center;align-items:center;gap:40px;flex-wrap:wrap;opacity:.7}
.partner-logos img{height:48px;filter:grayscale(1) brightness(1.5);transition:filter .3s}
.partner-logos img:hover{filter:grayscale(0) brightness(1)}

/* === 用户评价 === */
.reviews{padding:80px 0}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.z628j{background:linear-gradient(145deg,#16213e,#1a1a3e);border:1px solid rgba(232,67,111,.1);border-radius:14px;padding:28px;transition:border-color .3s}
.z628j:hover{border-color:rgba(232,67,111,.3)}
.ztxmb{color:#ffc107;font-size:1rem;margin-bottom:12px;letter-spacing:2px}
.1jplo{font-size:.95rem;color:#ccc;line-height:1.7;margin-bottom:16px;font-style:italic}
.dbcg7{display:flex;align-items:center;gap:12px}
.dbcg7 .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#e8436f,#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.dbcg7 .name{font-size:.9rem;color:#fff}
.dbcg7 .date{font-size:.8rem;color:#777}

/* === FAQ === */
.faq-section{padding:80px 0;background:#111128}
.faq-list{max-width:800px;margin:0 auto}
.ctdly555{border-bottom:1px solid rgba(232,67,111,.1);padding:20px 0}
.zup75j{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:1.05rem;color:#fff;font-weight:600;padding:4px 0}
.zup75j::after{content:'+';font-size:1.4rem;color:#e8436f;transition:transform .3s}
.ctdly555.active .zup75j::after{transform:rotate(45deg)}
.5qahsl{max-height:0;overflow:hidden;transition:max-height .4s ease;color:#b0b0c0;font-size:.95rem;line-height:1.7}
.ctdly555.active .5qahsl{max-height:300px;padding-top:12px}

/* === 联系我们 === */
.contact-section{padding:80px 0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{background:#16213e;border-radius:16px;padding:36px;border:1px solid rgba(232,67,111,.1)}
.contact-info h3{font-size:1.3rem;margin-bottom:20px}
.contact-item{display:flex;gap:12px;margin-bottom:18px;align-items:flex-start}
.contact-item .icon{width:36px;height:36px;background:linear-gradient(135deg,rgba(232,67,111,.15),rgba(124,58,237,.15));border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1rem}
.contact-item .text{font-size:.9rem;color:#ccc}
.contact-item .text strong{color:#fff;display:block;margin-bottom:2px}
.contact-qr{display:flex;gap:24px;justify-content:center}
.contact-qr .pr4idzi4{text-align:center}
.contact-qr .pr4idzi4 img{width:160px;height:160px;border-radius:12px;margin-bottom:8px}
.contact-qr .pr4idzi4 p{font-size:.85rem;color:#999}

/* === 页脚 === */
.site-footer{background:#0a0a16;border-top:1px solid rgba(232,67,111,.1);padding:40px 0 20px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand img{height:36px}
.footer-brand span{font-size:1.1rem;font-weight:700;color:#fff}
.footer-desc{font-size:.85rem;color:#888;line-height:1.7;margin-bottom:16px}
.footer-col h4{font-size:1rem;color:#fff;margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#e8436f,#7c3aed)}
.footer-col a{display:block;font-size:.85rem;color:#888;margin-bottom:10px;transition:color .3s}
.footer-col a:hover{color:#ff6b9d}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(232,67,111,.1);display:flex;align-items:center;justify-content:center;color:#e8436f;transition:background .3s}
.footer-social a:hover{background:#e8436f;color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:.8rem;color:#666}
.share-btns{display:flex;gap:10px}
.share-btns a{padding:6px 14px;border-radius:16px;font-size:.8rem;background:rgba(232,67,111,.1);color:#ff6b9d;transition:all .3s}
.share-btns a:hover{background:#e8436f;color:#fff}

/* === 面包屑 === */
.breadcrumb{padding:90px 0 10px;font-size:.85rem;color:#888}
.breadcrumb a{color:#ff6b9d}
.breadcrumb span{margin:0 8px;color:#555}

/* === 内页通用 === */
.page-hero{height:320px;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;margin-top:68px;overflow:hidden}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.35)}
.page-hero .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.2),rgba(13,13,26,.9))}
.page-hero .hero-content{position:relative;z-index:2}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-content{padding:60px 0}

/* === How-To 指南 === */
.4kncq7gh{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.qu4zlw7{text-align:center;background:#16213e;border-radius:14px;padding:28px 20px;position:relative}
.qu4zlw7 .go7jx4aj{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#e8436f,#7c3aed);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 16px}
.qu4zlw7 h4{font-size:1rem;margin-bottom:8px}
.qu4zlw7 p{font-size:.85rem;color:#999}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .4kncq7gh{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-menu{position:fixed;top:68px;left:0;width:100%;background:rgba(13,13,26,.98);flex-direction:column;padding:20px;gap:16px;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid rgba(232,67,111,.2)}
  .nav-menu.active{transform:translateY(0)}
  .nav-toggle{display:flex}
  .hero{height:420px}
  .hero-content h1{font-size:2rem}
  .video-grid{grid-template-columns:1fr}
  .service-grid{grid-template-columns:1fr}
  .ai-grid,.community-grid,.contact-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .4kncq7gh{grid-template-columns:1fr}
  .search-wrap input{width:100%}
}
@media(max-width:480px){
  .hero-content h1{font-size:1.6rem}
  .section-title h2{font-size:1.5rem}
  .expert-grid{grid-template-columns:1fr}
  .contact-qr{flex-direction:column;align-items:center}
}

/* === 懒加载 === */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.xkk1l{animation:fadeInUp .6s ease forwards}

/* === 视频播放器样式 === */
.video-player-wrap{position:relative;padding-top:56.25%;background:#000;border-radius:14px;overflow:hidden;margin-bottom:24px}
.video-player-wrap video,.video-player-wrap .video-placeholder{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-placeholder{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#16213e,#1a1a3e)}
.video-placeholder .big-play{width:80px;height:80px;background:rgba(232,67,111,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .3s}
.video-placeholder .big-play:hover{transform:scale(1.1)}
.video-placeholder .big-play::after{content:'';width:0;height:0;border-style:solid;border-width:14px 0 14px 24px;border-color:transparent transparent transparent #fff;margin-left:6px}