/* ==========================================
   lulu鲁师傅vlog - 全站样式表
   品牌：lulu鲁师傅vlog | ovlror.cn
   ========================================== */

/* CSS Reset & Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#333;line-height:1.7;background:#f8f9fa}
a{color:#e74c3c;text-decoration:none;transition:color .3s}
a:hover{color:#c0392b}
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}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ========== Header ========== */
.site-header{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);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;padding:12px 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-name{color:#fff;font-size:1.2rem;font-weight:700;white-space:nowrap}
.logo-wrap .brand-name span{color:#e74c3c}

/* Navigation */
.main-nav ul{display:flex;gap:6px}
.main-nav a{color:#ccc;padding:8px 14px;border-radius:6px;font-size:.9rem;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(231,76,60,.8)}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Search Bar */
.search-bar{background:linear-gradient(90deg,#e74c3c,#c0392b);padding:10px 0}
.search-bar .container{display:flex;align-items:center;justify-content:center;gap:10px}
.search-bar input{width:100%;max-width:500px;padding:10px 18px;border:none;border-radius:25px;font-size:.95rem;outline:none}
.search-bar button{background:#1a1a2e;color:#fff;border:none;padding:10px 24px;border-radius:25px;cursor:pointer;font-size:.9rem;transition:background .3s}
.search-bar button:hover{background:#16213e}

/* ========== Hero Section ========== */
.hero{position:relative;overflow:hidden;background:#1a1a2e}
.hero-bg{width:100%;height:480px;object-fit:cover;opacity:.6}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px}
.hero h1{color:#fff;font-size:2.4rem;margin-bottom:12px;text-shadow:2px 2px 8px rgba(0,0,0,.6)}
.hero h1 span{color:#e74c3c}
.hero p{color:#ddd;font-size:1.1rem;max-width:700px;margin-bottom:20px}
.hero .btn-group{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}

/* Buttons */
.btn{display:inline-block;padding:12px 28px;border-radius:30px;font-size:.95rem;font-weight:600;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#e74c3c,#c0392b);color:#fff}
.btn-primary:hover{background:linear-gradient(135deg,#c0392b,#a93226);transform:translateY(-2px);box-shadow:0 6px 20px rgba(231,76,60,.4);color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#1a1a2e}

/* ========== Section Common ========== */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-dark{background:#1a1a2e;color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-header{text-align:center;margin-bottom:40px}
.section-header h2{font-size:1.8rem;margin-bottom:8px;position:relative;display:inline-block}
.section-header h2::after{content:'';display:block;width:60px;height:3px;background:#e74c3c;margin:10px auto 0}
.section-header p{color:#777;font-size:1rem;margin-top:8px}

/* ========== Video Cards ========== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:all .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.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;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.3);opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn i{width:60px;height:60px;background:rgba(231,76,60,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}
.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-info{padding:14px 16px}
.video-info h4{font-size:1rem;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:14px;color:#999;font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;background:#ffeaea;color:#e74c3c;padding:2px 8px;border-radius:10px;font-size:.75rem;margin-top:6px}

/* ========== Module Grid ========== */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.module-card{background:#fff;border-radius:12px;padding:28px 24px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s}
.module-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.module-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#e74c3c,#c0392b);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.8rem}
.module-card h4{font-size:1.05rem;margin-bottom:8px}
.module-card p{color:#777;font-size:.88rem;line-height:1.6}

/* ========== Expert Section ========== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.08);transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.12)}
.expert-card .expert-img{width:100%;height:240px;object-fit:cover}
.expert-body{padding:20px}
.expert-body h4{font-size:1.1rem;margin-bottom:4px}
.expert-body .title{color:#e74c3c;font-size:.85rem;margin-bottom:10px}
.expert-body p{color:#666;font-size:.88rem;margin-bottom:12px}
.expert-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.expert-tags span{background:#f0f0f0;padding:3px 10px;border-radius:12px;font-size:.78rem;color:#555}
.expert-btns{display:flex;gap:8px}
.expert-btns .btn{padding:8px 16px;font-size:.82rem}

/* ========== Partners ========== */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall .partner-item{width:120px;height:60px;background:#f5f5f5;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#999;font-size:.85rem;transition:all .3s}
.partner-wall .partner-item:hover{background:#e74c3c;color:#fff}

/* ========== FAQ ========== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.faq-question{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:background .3s}
.faq-question:hover{background:#fafafa}
.faq-question .arrow{transition:transform .3s;font-size:1.2rem;color:#e74c3c}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 20px}
.faq-item.active .faq-answer{max-height:300px;padding:0 20px 16px}
.faq-answer p{color:#666;font-size:.9rem;line-height:1.7}

/* ========== Reviews ========== */
.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 4px 12px rgba(0,0,0,.06)}
.review-card .stars{color:#f39c12;font-size:1rem;margin-bottom:8px;letter-spacing:2px}
.review-card blockquote{color:#555;font-size:.9rem;line-height:1.7;margin-bottom:12px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .avatar{width:36px;height:36px;border-radius:50%;background:#e74c3c;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}
.review-card .reviewer .name{font-weight:600;font-size:.88rem}
.review-card .reviewer .date{color:#999;font-size:.78rem}

/* ========== Contact ========== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#fff;border-radius:12px;padding:24px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.contact-card h4{margin-bottom:12px;font-size:1rem}
.contact-card img{max-width:180px;margin:0 auto 12px;border-radius:8px}
.contact-card p{color:#666;font-size:.88rem}

/* ========== How-To ========== */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;margin-top:20px}
.howto-step{text-align:center;padding:24px 16px}
.howto-step .step-num{width:48px;height:48px;background:linear-gradient(135deg,#e74c3c,#c0392b);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 14px}
.howto-step h4{font-size:1rem;margin-bottom:8px}
.howto-step p{color:#777;font-size:.85rem}

/* ========== Footer ========== */
.site-footer{background:#1a1a2e;color:#aaa;padding:40px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#e74c3c}
.footer-col p,.footer-col li{font-size:.85rem;line-height:1.8;color:#aaa}
.footer-col a{color:#aaa}
.footer-col a:hover{color:#e74c3c}
.footer-qr{display:flex;gap:16px;margin-top:10px}
.footer-qr img{width:100px;border-radius:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;text-align:center;font-size:.82rem}
.footer-bottom a{color:#e74c3c}

/* Social Share */
.share-bar{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:20px;font-size:.82rem;color:#fff;transition:all .3s}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#000}
.share-bilibili{background:#00a1d6}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#999}
.breadcrumb a{color:#666}
.breadcrumb a:hover{color:#e74c3c}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ========== Inner Page ========== */
.page-hero{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:50px 0;text-align:center}
.page-hero h1{color:#fff;font-size:2rem;margin-bottom:8px}
.page-hero p{color:#ccc;font-size:1rem}
.page-content{padding:40px 0}
.content-block{background:#fff;border-radius:12px;padding:30px;margin-bottom:24px;box-shadow:0 4px 12px rgba(0,0,0,.06)}
.content-block h3{font-size:1.2rem;margin-bottom:14px;color:#1a1a2e;border-left:4px solid #e74c3c;padding-left:12px}
.content-block p{color:#555;font-size:.92rem;line-height:1.8;margin-bottom:12px}

/* Tags */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag-cloud .tag{background:#ffeaea;color:#e74c3c;padding:4px 12px;border-radius:14px;font-size:.8rem;transition:all .3s}
.tag-cloud .tag:hover{background:#e74c3c;color:#fff}

/* ========== Responsive ========== */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;order:3}
  .main-nav.show{display:block}
  .main-nav ul{flex-direction:column;padding:10px 0}
  .main-nav a{display:block;padding:10px 16px}
  .mobile-menu-btn{display:block}
  .hero h1{font-size:1.6rem}
  .hero-bg{height:300px}
  .section{padding:40px 0}
  .section-header h2{font-size:1.4rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
  .expert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero h1{font-size:1.3rem}
  .hero p{font-size:.9rem}
  .btn{padding:10px 20px;font-size:.85rem}
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
}