/* 51视频 - 原创样式表 */
/* 配色：深紫黑#1a0a2e 亮紫#7b2ff7 粉红#ff6b9d 暗黑#0d0b1a 浅紫白#e8e0f0 暗紫#1e1535 */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;background:#0d0b1a;color:#e8e0f0;line-height:1.7;overflow-x:hidden}
a{color:#c9a0ff;text-decoration:none;transition:color .3s}
a:hover{color:#ff6b9d}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 头部导航 */
.site-header{background:linear-gradient(180deg,#1a0a2e 0%,#0d0b1a 100%);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(123,47,247,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{width:42px;height:42px;border-radius:8px}
.logo-wrap .brand-name{font-size:1.4rem;font-weight:700;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;gap:6px}
.main-nav a{padding:8px 16px;border-radius:20px;font-size:.9rem;color:#c9a0ff;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:rgba(123,47,247,.2);color:#fff}
.nav-toggle{display:none;background:none;border:none;color:#e8e0f0;font-size:1.5rem;cursor:pointer}

/* 搜索框 */
.search-bar{background:rgba(30,21,53,.8);padding:14px 0;border-bottom:1px solid rgba(123,47,247,.15)}
.search-wrap{max-width:600px;margin:0 auto;display:flex;gap:8px;padding:0 20px}
.search-wrap input{flex:1;padding:10px 18px;border-radius:25px;border:1px solid rgba(123,47,247,.4);background:rgba(13,11,26,.8);color:#e8e0f0;font-size:.9rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#7b2ff7}
.search-wrap button{padding:10px 24px;border-radius:25px;border:none;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);color:#fff;font-size:.9rem;cursor:pointer;transition:opacity .3s}
.search-wrap button:hover{opacity:.85}

/* Hero区域 */
.hero-section{position:relative;overflow:hidden;padding:60px 0;background:linear-gradient(135deg,#1a0a2e 0%,#0d0b1a 50%,#1e1535 100%)}
.hero-inner{display:flex;align-items:center;gap:40px;max-width:1200px;margin:0 auto;padding:0 20px}
.hero-text{flex:1;z-index:2}
.hero-text h1{font-size:2.4rem;font-weight:800;line-height:1.3;margin-bottom:16px;background:linear-gradient(135deg,#fff,#c9a0ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-text h1 em{font-style:normal;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-text p{font-size:1.05rem;color:#b8a8d4;margin-bottom:24px;max-width:520px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 28px;border-radius:25px;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);color:#fff;font-weight:600;font-size:.95rem;transition:transform .3s,box-shadow .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(123,47,247,.4);color:#fff}
.btn-outline{display:inline-block;padding:12px 28px;border-radius:25px;border:2px solid #7b2ff7;color:#c9a0ff;font-weight:600;font-size:.95rem;transition:all .3s;background:transparent;cursor:pointer}
.btn-outline:hover{background:rgba(123,47,247,.15);color:#fff}
.hero-img{flex:1;position:relative;z-index:1}
.hero-img img{border-radius:16px;box-shadow:0 20px 60px rgba(123,47,247,.3)}

/* 通用区块 */
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.8rem;font-weight:700;margin-bottom:10px;color:#fff}
.section-title h2 span{background:linear-gradient(135deg,#7b2ff7,#ff6b9d);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-title p{color:#9a8cb8;font-size:1rem;max-width:600px;margin:0 auto}
.section-alt{background:linear-gradient(180deg,#1e1535 0%,#0d0b1a 100%)}

/* 动漫视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#1e1535;border-radius:14px;overflow:hidden;transition:transform .3s,box-shadow .3s;border:1px solid rgba(123,47,247,.15)}
.video-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(123,47,247,.25)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0d0b1a}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(123,47,247,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;cursor:pointer}
.play-btn::after{content:'';width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card:hover .play-btn{opacity:1}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:14px 16px}
.video-info h3{font-size:1rem;font-weight:600;margin-bottom:6px;color:#e8e0f0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .meta{display:flex;gap:14px;font-size:.8rem;color:#8a7baa}
.video-info .meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.video-tags span{padding:2px 10px;border-radius:12px;font-size:.72rem;background:rgba(123,47,247,.15);color:#c9a0ff}

/* 角色卡片 */
.chara-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.chara-card{background:#1e1535;border-radius:14px;overflow:hidden;text-align:center;transition:transform .3s;border:1px solid rgba(123,47,247,.15)}
.chara-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(123,47,247,.2)}
.chara-card img{width:100%;aspect-ratio:3/4;object-fit:cover}
.chara-card h3{padding:12px 10px 4px;font-size:1rem;color:#fff}
.chara-card p{padding:0 10px 14px;font-size:.82rem;color:#9a8cb8}

/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#1e1535;border-radius:14px;padding:24px;text-align:center;border:1px solid rgba(123,47,247,.15);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid #7b2ff7}
.expert-card h3{font-size:1.05rem;color:#fff;margin-bottom:4px}
.expert-card .role{color:#ff6b9d;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#9a8cb8;margin-bottom:14px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:6px 16px;border-radius:16px;font-size:.8rem}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#1e1535;border-radius:12px;margin-bottom:12px;border:1px solid rgba(123,47,247,.15);overflow:hidden}
.faq-q{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#e8e0f0;transition:background .3s}
.faq-q:hover{background:rgba(123,47,247,.1)}
.faq-q::after{content:'+';font-size:1.3rem;color:#7b2ff7;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;color:#9a8cb8;font-size:.9rem}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 16px}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#1e1535;border-radius:14px;padding:24px;border:1px solid rgba(123,47,247,.15)}
.review-card .stars{color:#ff6b9d;font-size:1.1rem;margin-bottom:10px;letter-spacing:2px}
.review-card blockquote{font-size:.9rem;color:#c9a0ff;margin-bottom:14px;font-style:italic;line-height:1.6}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.85rem}
.review-card .reviewer .name{font-size:.85rem;color:#e8e0f0}
.review-card .reviewer .date{font-size:.75rem;color:#8a7baa}

/* 合作品牌 */
.partner-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.partner-wall .partner-item{background:#1e1535;border-radius:12px;padding:16px 28px;border:1px solid rgba(123,47,247,.15);color:#9a8cb8;font-size:.9rem;font-weight:600;transition:all .3s}
.partner-wall .partner-item:hover{border-color:#7b2ff7;color:#c9a0ff}

/* 联系信息 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#1e1535;border-radius:14px;padding:24px;text-align:center;border:1px solid rgba(123,47,247,.15)}
.contact-card h3{font-size:1.05rem;color:#fff;margin-bottom:12px}
.contact-card p{font-size:.88rem;color:#9a8cb8;margin-bottom:6px}
.contact-card img{max-width:160px;margin:10px auto 0;border-radius:8px}

/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{padding:8px 20px;border-radius:20px;font-size:.85rem;border:1px solid rgba(123,47,247,.3);color:#c9a0ff;transition:all .3s;cursor:pointer;background:transparent}
.share-btn:hover{background:rgba(123,47,247,.2);color:#fff;border-color:#7b2ff7}

/* 页脚 */
.site-footer{background:#0a0818;border-top:1px solid rgba(123,47,247,.2);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{font-size:1rem;color:#fff;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#7b2ff7,#ff6b9d)}
.footer-col p,.footer-col a{font-size:.85rem;color:#8a7baa;display:block;margin-bottom:6px}
.footer-col a:hover{color:#ff6b9d}
.footer-qr{display:flex;gap:20px;margin-top:10px}
.footer-qr img{width:100px;height:100px;border-radius:8px}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(123,47,247,.1);font-size:.82rem;color:#6a5c8a}

/* 面包屑 */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#8a7baa}
.breadcrumb a{color:#c9a0ff}
.breadcrumb span{margin:0 6px;color:#6a5c8a}

/* 内页详情 */
.detail-hero{display:flex;gap:30px;align-items:flex-start;margin-bottom:40px}
.detail-hero img{width:350px;border-radius:14px;flex-shrink:0}
.detail-content{flex:1}
.detail-content h1{font-size:2rem;color:#fff;margin-bottom:12px}
.detail-content .tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.detail-content .tags span{padding:4px 14px;border-radius:14px;font-size:.8rem;background:rgba(123,47,247,.2);color:#c9a0ff}
.detail-content .desc{color:#b8a8d4;font-size:.95rem;line-height:1.8;margin-bottom:20px}
.detail-stats{display:flex;gap:20px;flex-wrap:wrap}
.detail-stats .stat{text-align:center}
.detail-stats .stat .num{font-size:1.4rem;font-weight:700;color:#ff6b9d}
.detail-stats .stat .label{font-size:.78rem;color:#8a7baa}

/* 模块标题 */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.module-card{background:linear-gradient(135deg,#1e1535,#251a45);border-radius:14px;padding:24px;border:1px solid rgba(123,47,247,.15);transition:transform .3s}
.module-card:hover{transform:translateY(-4px)}
.module-card .icon{font-size:2rem;margin-bottom:12px}
.module-card h3{font-size:1.05rem;color:#fff;margin-bottom:8px}
.module-card p{font-size:.85rem;color:#9a8cb8}

/* 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}
.howto-step .step-num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#7b2ff7,#ff6b9d);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem;flex-shrink:0}
.howto-step .step-text h4{color:#fff;margin-bottom:4px}
.howto-step .step-text p{color:#9a8cb8;font-size:.88rem}

/* 响应式 */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;gap:0;padding-top:10px}
  .main-nav.show{display:flex}
  .main-nav a{padding:10px 16px;border-radius:0;border-bottom:1px solid rgba(123,47,247,.1)}
  .nav-toggle{display:block}
  .hero-inner{flex-direction:column;text-align:center;padding:30px 20px}
  .hero-text h1{font-size:1.7rem}
  .hero-text p{margin:0 auto 20px}
  .hero-btns{justify-content:center}
  .hero-img img{max-width:90%}
  .detail-hero{flex-direction:column}
  .detail-hero img{width:100%;max-width:350px}
  .section{padding:40px 0}
  .section-title h2{font-size:1.4rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .chara-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .chara-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-text h1{font-size:1.4rem}
}