/* ============================================
   涩里番 - 影视传媒视频社区 官方网站样式
   品牌色系：深紫黑 + 樱粉 + 霓虹紫
   ============================================ */

/* CSS 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;background:#0D0D1A;color:#E8E0F0;line-height:1.8;overflow-x:hidden}
a{color:#FF6B9D;text-decoration:none;transition:color .3s}
a:hover{color:#C850C0}
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}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-padding{padding:60px 0}
.section-alt{background:rgba(26,10,46,.2)}

/* ========== Header ========== */
.site-header{background:rgba(13,13,26,.95);backdrop-filter:blur(12px);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(200,80,192,.2)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo .logo-img{height:42px;width:auto}
.site-logo .logo-icon{height:32px;width:32px;display:none}
.site-logo span{font-size:22px;font-weight:800;background:linear-gradient(135deg,#FF6B9D,#C850C0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Navigation */
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:6px;font-size:15px;color:#E8E0F0;font-weight:500;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:linear-gradient(135deg,rgba(255,107,157,.15),rgba(200,80,192,.15));color:#FF6B9D}
.mobile-menu-btn{display:none;background:none;border:none;color:#FF6B9D;font-size:24px;cursor:pointer}

/* Search Bar */
.search-bar{background:rgba(26,10,46,.6);border-bottom:1px solid rgba(200,80,192,.15);padding:12px 20px}
.search-bar-inner{display:flex;gap:10px;align-items:center;max-width:600px;margin:0 auto}
.search-bar input{flex:1;background:rgba(255,255,255,.08);border:1px solid rgba(200,80,192,.3);border-radius:20px;padding:8px 18px;color:#E8E0F0;font-size:14px;outline:none;transition:border-color .3s}
.search-bar input:focus{border-color:#FF6B9D}
.search-bar input::placeholder{color:rgba(232,224,240,.4)}
.search-bar button{background:linear-gradient(135deg,#FF6B9D,#C850C0);border:none;border-radius:20px;padding:8px 22px;color:#fff;font-size:14px;cursor:pointer;transition:opacity .3s;white-space:nowrap}
.search-bar button:hover{opacity:.85}

/* ========== Hero Banner ========== */
.hero-section{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center}
.hero-section .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.6)}
.hero-section .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;text-align:center;padding:60px 20px}
.hero-content h1{font-size:clamp(28px,5vw,48px);margin-bottom:16px;text-shadow:0 2px 20px rgba(200,80,192,.5)}
.hero-content h1 .brand-highlight{background:linear-gradient(135deg,#FF6B9D,#C850C0,#FF6B9D);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:clamp(14px,2vw,18px);color:rgba(232,224,240,.85);max-width:700px;margin:0 auto 24px}
.hero-cta{display:inline-flex;gap:12px;flex-wrap:wrap;justify-content:center}
.btn-primary{background:linear-gradient(135deg,#FF6B9D,#C850C0);color:#fff;padding:12px 32px;border-radius:25px;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:transform .3s,box-shadow .3s;display:inline-block}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,157,.4);color:#fff}
.btn-outline{border:2px solid #FF6B9D;color:#FF6B9D;padding:10px 30px;border-radius:25px;font-size:16px;font-weight:600;transition:all .3s;display:inline-block}
.btn-outline:hover{background:#FF6B9D;color:#fff}

/* ========== Section Headers ========== */
.section-header{text-align:center;margin-bottom:40px}
.section-header h2,.section-header h3{font-size:clamp(22px,3.5vw,32px);margin-bottom:10px}
.section-header h2 .brand-text,.section-header h3 .brand-text{color:#FF6B9D}
.section-header .section-desc{color:rgba(232,224,240,.7);font-size:15px;max-width:650px;margin:0 auto}
.section-line{width:60px;height:3px;background:linear-gradient(90deg,#FF6B9D,#C850C0);margin:12px auto 0;border-radius:2px}

/* ========== Video Cards ========== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:rgba(26,10,46,.5);border-radius:12px;overflow:hidden;border:1px solid rgba(200,80,192,.15);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(200,80,192,.2)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none;z-index:1}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(13,13,26,.4);z-index:5}
.video-card:hover .play-btn{opacity:1}
.play-btn span{width:56px;height:56px;background:rgba(255,107,157,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0;transition:transform .2s}
.play-btn span:hover{transform:scale(1.1)}
.play-btn span::after{content:"";border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;z-index:3}
.video-stats{position:absolute;top:8px;left:8px;display:flex;gap:8px;z-index:3}
.video-stats .stat-tag{background:rgba(0,0,0,.65);color:#FF6B9D;padding:2px 8px;border-radius:4px;font-size:11px}
.video-info{padding:14px 16px}
.video-info h3{font-size:15px;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .video-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:rgba(232,224,240,.5)}
.video-info .video-meta time{color:rgba(232,224,240,.5)}
.video-info .video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-info .video-tags span{background:rgba(200,80,192,.15);color:#C850C0;padding:2px 10px;border-radius:12px;font-size:11px}

/* ========== Category Tabs ========== */
.category-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}
.category-tabs .tab{padding:8px 20px;border-radius:20px;font-size:14px;color:#E8E0F0;background:rgba(26,10,46,.5);border:1px solid rgba(200,80,192,.2);cursor:pointer;transition:all .3s}
.category-tabs .tab:hover,.category-tabs .tab.active{background:linear-gradient(135deg,#FF6B9D,#C850C0);color:#fff;border-color:transparent}

/* ========== Expert Section ========== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:rgba(26,10,46,.5);border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(200,80,192,.15);transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card .expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid #C850C0}
.expert-card .expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:18px;margin-bottom:4px}
.expert-card .expert-title{color:#FF6B9D;font-size:13px;margin-bottom:6px}
.expert-card .expert-cert{font-size:11px;color:#FFD700;margin-bottom:10px;padding:4px 12px;background:rgba(255,215,0,.08);border:1px solid rgba(255,215,0,.2);border-radius:6px;display:inline-block}
.expert-card p{font-size:13px;color:rgba(232,224,240,.6);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:12px}

/* ========== AI Feature Cards ========== */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.ai-card{background:linear-gradient(135deg,rgba(26,10,46,.6),rgba(200,80,192,.08));border:1px solid rgba(200,80,192,.2);border-radius:12px;padding:28px;transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card .ai-icon{font-size:36px;margin-bottom:14px}
.ai-card h4{font-size:17px;margin-bottom:8px}
.ai-card p{font-size:13px;color:rgba(232,224,240,.6)}

/* ========== FAQ Section ========== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.15);border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-question{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;transition:background .3s}
.faq-question:hover{background:rgba(200,80,192,.08)}
.faq-question .faq-icon{font-size:20px;color:#FF6B9D;transition:transform .3s;flex-shrink:0;margin-left:10px}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s;font-size:14px;color:rgba(232,224,240,.7);line-height:1.8}
.faq-item.active .faq-answer{padding:0 20px 16px;max-height:500px}

/* ========== Reviews ========== */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.review-card{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:12px;padding:20px}
.review-card .review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-card .review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#C850C0);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px;flex-shrink:0}
.review-card .review-name{font-weight:600;font-size:14px}
.review-card .review-date{font-size:11px;color:rgba(232,224,240,.4);display:block}
.review-card .review-stars{color:#FFD700;font-size:14px;margin-bottom:8px;letter-spacing:2px}
.review-card .review-text{font-size:13px;color:rgba(232,224,240,.7);line-height:1.7}

/* ========== Partners ========== */
.partner-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.partner-wall .partner-item{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:10px;padding:16px 28px;font-size:16px;font-weight:700;color:rgba(232,224,240,.6);transition:all .3s}
.partner-wall .partner-item:hover{border-color:#C850C0;color:#FF6B9D}

/* ========== How-To Guide ========== */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px;counter-reset:step}
.howto-step{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:12px;padding:24px;position:relative;counter-increment:step}
.howto-step::before{content:counter(step);position:absolute;top:-12px;left:20px;width:32px;height:32px;background:linear-gradient(135deg,#FF6B9D,#C850C0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px}
.howto-step h4{margin-top:8px;margin-bottom:8px;font-size:16px}
.howto-step p{font-size:13px;color:rgba(232,224,240,.6)}

/* ========== Live/Community Features ========== */
.feature-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.feature-item{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:10px;padding:20px;text-align:center;transition:all .3s}
.feature-item:hover{border-color:#C850C0;background:rgba(200,80,192,.08)}
.feature-item .feat-icon{font-size:32px;margin-bottom:10px}
.feature-item h5{font-size:14px;margin-bottom:4px}
.feature-item p{font-size:12px;color:rgba(232,224,240,.5)}

/* ========== Contact Section ========== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.contact-card{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:12px;padding:24px;text-align:center}
.contact-card h4{font-size:16px;margin-bottom:12px;color:#FF6B9D}
.contact-card p{font-size:13px;color:rgba(232,224,240,.6);margin-bottom:6px}
.contact-card img{max-width:140px;margin:10px auto 0;border-radius:8px}

/* ========== Social Share ========== */
.social-share{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.social-share a{width:44px;height:44px;border-radius:50%;background:rgba(26,10,46,.6);border:1px solid rgba(200,80,192,.2);display:flex;align-items:center;justify-content:center;font-size:18px;transition:all .3s}
.social-share a:hover{background:linear-gradient(135deg,#FF6B9D,#C850C0);border-color:transparent;color:#fff}

/* ========== Footer ========== */
.site-footer{background:rgba(10,6,20,.95);border-top:1px solid rgba(200,80,192,.15);padding:40px 0 20px}
.footer-logo{margin-bottom:16px}
.footer-logo img{height:36px;width:auto}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h5{font-size:16px;margin-bottom:14px;color:#FF6B9D}
.footer-col a{display:block;font-size:13px;color:rgba(232,224,240,.6);padding:3px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B9D}
.footer-col p{font-size:13px;color:rgba(232,224,240,.5);line-height:1.7}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(200,80,192,.1);font-size:12px;color:rgba(232,224,240,.4)}
.footer-qr{display:flex;gap:20px;justify-content:center;margin:20px 0}
.footer-qr .qr-item{text-align:center}
.footer-qr .qr-item img{width:120px;height:120px;border-radius:8px;margin-bottom:6px}
.footer-qr .qr-item span{font-size:11px;color:rgba(232,224,240,.5)}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:12px 0;font-size:13px;color:rgba(232,224,240,.5)}
.breadcrumb a{color:#FF6B9D}
.breadcrumb span{margin:0 6px}

/* ========== Inner Page Styles ========== */
.page-hero{position:relative;min-height:260px;display:flex;align-items:center;overflow:hidden}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45)}
.page-hero .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.2),rgba(13,13,26,.9))}
.page-hero-content{position:relative;z-index:2;padding:40px 20px}
.page-hero-content h1{font-size:clamp(24px,4vw,38px)}
.page-hero-content p{color:rgba(232,224,240,.7);margin-top:10px;font-size:15px}

.content-section{padding:40px 0}
.content-section h2{font-size:24px;margin-bottom:16px}
.content-section h3{font-size:20px;margin-bottom:12px;color:#FF6B9D}
.content-section p{margin-bottom:16px;font-size:15px;color:rgba(232,224,240,.75);line-height:1.9}

.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.article-card{background:rgba(26,10,46,.4);border:1px solid rgba(200,80,192,.12);border-radius:12px;overflow:hidden;transition:transform .3s}
.article-card:hover{transform:translateY(-4px)}
.article-card .article-thumb{height:180px;overflow:hidden}
.article-card .article-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.article-card:hover .article-thumb img{transform:scale(1.05)}
.article-card .article-body{padding:16px}
.article-card .article-body h3{font-size:16px;margin-bottom:8px}
.article-card .article-body p{font-size:13px;color:rgba(232,224,240,.6)}

/* ========== 404 Page ========== */
.error-page{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-page h1{font-size:72px;background:linear-gradient(135deg,#FF6B9D,#C850C0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}
.error-page h2{font-size:24px;margin-bottom:12px}
.error-page p{color:rgba(232,224,240,.6);margin-bottom:24px}

/* ========== Responsive ========== */
@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(200,80,192,.1)}
  .mobile-menu-btn{display:block}
  .site-logo .logo-img{display:none}
  .site-logo .logo-icon{display:block}
  .hero-content{padding:40px 16px}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .search-bar-inner{max-width:100%}
  .category-tabs{gap:6px}
  .category-tabs .tab{padding:6px 14px;font-size:13px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-qr{flex-direction:column;align-items:center}
  .contact-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
}

/* ========== Animations ========== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeInUp .6s ease forwards;opacity:0}