/* ========================================
   韩漫 - 原创样式表
   品牌色：#E8364F / #FF6B35 / #1A1A2E
   ======================================== */

/* Reset & Base */
*,*::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:#F5F5FA;line-height:1.7;overflow-x:hidden}
a{color:#E8364F;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B35}
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 12px 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:42px;width:auto}
.logo-wrap .brand-text{color:#fff;font-size:20px;font-weight:700;letter-spacing:1px}
.nav-menu{display:flex;gap:6px}
.nav-menu a{color:#ddd;padding:8px 14px;border-radius:6px;font-size:14px;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{color:#fff;background:linear-gradient(135deg,#E8364F,#FF6B35)}
.mobile-toggle{display:none;color:#fff;font-size:24px;cursor:pointer;background:none;border:none}

/* Search Bar */
.search-bar{background:linear-gradient(135deg,#1A1A2E 0%,#2a2a4a 100%);padding:14px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;position:relative}
.search-form input{flex:1;padding:10px 18px;border:2px solid #E8364F;border-radius:25px 0 0 25px;font-size:15px;outline:none;background:#fff;color:#2D2D3A}
.search-form button{padding:10px 28px;background:linear-gradient(135deg,#E8364F,#FF6B35);color:#fff;border:none;border-radius:0 25px 25px 0;cursor:pointer;font-size:15px;font-weight:600;transition:opacity .3s}
.search-form button:hover{opacity:.9}
.search-hot{display:flex;gap:10px;margin-top:8px;justify-content:center;flex-wrap:wrap}
.search-hot span{color:#aaa;font-size:12px}
.search-hot a{color:#ccc;font-size:12px;padding:2px 8px;background:rgba(255,255,255,.08);border-radius:12px}

/* Hero Banner */
.hero-banner{position:relative;overflow:hidden;height:420px;background:linear-gradient(135deg,#1A1A2E,#2a2a4a)}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px}
.hero-overlay h1{color:#fff;font-size:38px;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-overlay h1 em{font-style:normal;color:#FF6B35}
.hero-overlay p{color:#ddd;font-size:17px;max-width:650px;margin-bottom:20px}
.hero-overlay .hero-tags{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.hero-overlay .hero-tags span{background:rgba(232,54,79,.7);color:#fff;padding:5px 16px;border-radius:20px;font-size:13px}

/* Section Common */
.section{padding:50px 0}
.section-title{text-align:center;margin-bottom:36px}
.section-title h2{font-size:28px;color:#1A1A2E;margin-bottom:8px}
.section-title h2 em{font-style:normal;color:#E8364F}
.section-title p{color:#777;font-size:15px}
.section-alt{background:#fff}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:13px;color:#999}
.breadcrumb a{color:#E8364F}
.breadcrumb span{margin:0 6px;color:#ccc}

/* Video Card Grid */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;position:relative}
.video-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(0,0,0,.12)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#1A1A2E}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.video-play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.35)}
.video-card:hover .video-play-btn{opacity:1}
.video-play-btn i{width:56px;height:56px;background:rgba(232,54,79,.9);border-radius:50%;display:flex;align-items:center;justify-content:center}
.video-play-btn i::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-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;font-size:12px;padding:2px 8px;border-radius:4px}
.video-info{padding:12px 14px}
.video-info h3{font-size:14px;color:#2D2D3A;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.video-meta{display:flex;justify-content:space-between;font-size:12px;color:#999}
.video-meta .views::before{content:"▶ "}
.video-meta .likes::before{content:"♥ "}
.video-tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-tags span{font-size:11px;color:#E8364F;background:rgba(232,54,79,.08);padding:2px 8px;border-radius:10px}

/* Category Tabs */
.cat-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}
.cat-tabs a{padding:8px 22px;border-radius:25px;font-size:14px;color:#666;background:#f0f0f5;transition:all .3s}
.cat-tabs a:hover,.cat-tabs a.active{color:#fff;background:linear-gradient(135deg,#E8364F,#FF6B35)}

/* Module Cards */
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.module-card{background:#fff;border-radius:14px;padding:28px 22px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:transform .3s}
.module-card:hover{transform:translateY(-4px)}
.module-icon{width:60px;height:60px;margin:0 auto 16px;background:linear-gradient(135deg,#E8364F,#FF6B35);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff}
.module-card h3{font-size:17px;color:#1A1A2E;margin-bottom:8px}
.module-card p{font-size:13px;color:#777;line-height:1.6}

/* Expert Section */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06);text-align:center;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-avatar{width:100%;aspect-ratio:1;overflow:hidden}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-info{padding:16px}
.expert-info h4{font-size:16px;color:#1A1A2E;margin-bottom:4px}
.expert-info .role{color:#E8364F;font-size:13px;margin-bottom:8px}
.expert-info p{font-size:12px;color:#777;line-height:1.5;margin-bottom:12px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.expert-btns a{padding:6px 14px;border-radius:20px;font-size:12px;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#E8364F,#FF6B35);color:#fff}
.btn-outline{border:1px solid #E8364F;color:#E8364F}
.btn-outline:hover{background:#E8364F;color:#fff}

/* Brand Wall */
.brand-wall{display:flex;gap:30px;justify-content:center;align-items:center;flex-wrap:wrap;padding:20px 0}
.brand-wall .brand-item{width:120px;height:60px;background:#f0f0f5;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:13px;color:#999;font-weight:600;transition:all .3s}
.brand-wall .brand-item:hover{background:#E8364F;color:#fff}

/* FAQ Section */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.faq-q{padding:16px 20px;font-size:15px;font-weight:600;color:#1A1A2E;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-q:hover{background:#fafafa}
.faq-q::after{content:"+";font-size:20px;color:#E8364F;transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .4s;color:#666;font-size:14px;line-height:1.7}
.faq-item.open .faq-a{padding:0 20px 16px;max-height:300px}

/* Reviews */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:14px;padding:22px;box-shadow:0 4px 16px rgba(0,0,0,.05)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#E8364F,#FF6B35);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:700}
.review-name{font-size:15px;font-weight:600;color:#1A1A2E}
.review-date{font-size:12px;color:#999}
.review-stars{color:#FF6B35;font-size:14px;margin-bottom:8px}
.review-text{font-size:13px;color:#555;line-height:1.7}

/* Contact Section */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;align-items:start}
.contact-info{background:#fff;border-radius:14px;padding:28px;box-shadow:0 4px 16px rgba(0,0,0,.05)}
.contact-info h3{font-size:18px;color:#1A1A2E;margin-bottom:16px}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;font-size:14px;color:#555}
.contact-item strong{color:#1A1A2E;min-width:70px}
.contact-qr{display:flex;gap:24px;justify-content:center}
.contact-qr .qr-item{text-align:center}
.contact-qr .qr-item img{width:140px;height:140px;border-radius:10px;margin-bottom:8px}
.contact-qr .qr-item p{font-size:13px;color:#666}

/* Social Share */
.social-share{display:flex;gap:12px;justify-content:center;padding:20px 0}
.social-share a{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;transition:transform .3s}
.social-share a:hover{transform:scale(1.1)}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* Footer */
.site-footer{background:#1A1A2E;color:#aaa;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:14px}
.footer-col a{display:block;color:#aaa;font-size:13px;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#FF6B35}
.footer-col p{font-size:13px;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:13px}
.footer-bottom .update-time{color:#FF6B35;margin-top:6px}

/* How-To Guide */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}
.howto-step{text-align:center;padding:20px;background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.step-num{width:40px;height:40px;background:linear-gradient(135deg,#E8364F,#FF6B35);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-weight:700;font-size:18px}
.howto-step h4{font-size:15px;color:#1A1A2E;margin-bottom:6px}
.howto-step p{font-size:12px;color:#777}

/* AI Module */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(135deg,#1A1A2E,#2a2a4a);border-radius:14px;padding:28px;color:#fff;transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-card h3{font-size:17px;margin-bottom:10px;color:#FF6B35}
.ai-card p{font-size:13px;color:#ccc;line-height:1.7}

/* Community */
.community-features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.comm-card{background:#fff;border-radius:14px;padding:24px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.05);border-top:3px solid #E8364F;transition:transform .3s}
.comm-card:hover{transform:translateY(-3px)}
.comm-card h4{font-size:16px;color:#1A1A2E;margin-bottom:8px}
.comm-card p{font-size:13px;color:#777}

/* Responsive */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .nav-menu{display:none;width:100%;flex-direction:column;padding-top:10px}
  .nav-menu.show{display:flex}
  .mobile-toggle{display:block}
  .hero-banner{height:300px}
  .hero-overlay h1{font-size:26px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .module-grid,.ai-features,.community-features{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}
  .howto-steps{grid-template-columns:1fr}
  .section{padding:30px 0}
  .section-title h2{font-size:22px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .brand-wall .brand-item{width:90px;height:45px;font-size:11px}
}

/* Lazy Load Placeholder */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* Video Overlay Animation */
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
.video-card:hover .video-play-btn i{animation:pulse 1.2s infinite}