/* ============================================
   糖心vlog 原创样式表
   品牌色系：糖心粉 #E8436F / 深紫 #2D1B4E / 暖橙 #FF8C42
   ============================================ */

/* 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","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#2C2C2C;background:#FFF8F5;line-height:1.7;overflow-x:hidden}
a{color:#E8436F;text-decoration:none;transition:color .3s}
a:hover{color:#FF8C42}
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}

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

/* ============ Header / Navigation ============ */
.site-header{background:linear-gradient(135deg,#2D1B4E 0%,#1A0E2E 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: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 span{color:#fff;font-size:1.25rem;font-weight:700;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:#F5F0FF;padding:12px 16px;font-size:.95rem;transition:all .3s;border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav a.active{color:#FF8C42;border-bottom-color:#FF8C42}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Search Bar */
.search-bar{background:rgba(45,27,78,.6);padding:10px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%;border-radius:24px;overflow:hidden;box-shadow:0 2px 12px rgba(232,67,111,.2)}
.search-box input{flex:1;padding:10px 20px;border:none;font-size:.95rem;outline:none;background:#fff}
.search-box button{background:linear-gradient(135deg,#E8436F,#FF8C42);color:#fff;border:none;padding:10px 24px;cursor:pointer;font-size:.95rem;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* ============ Hero Section ============ */
.hero{position:relative;height:520px;overflow:hidden;background:#1A0E2E}
.hero-bg{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:linear-gradient(180deg,rgba(26,14,46,.3) 0%,rgba(26,14,46,.7) 100%);padding:20px}
.hero h1{color:#fff;font-size:2.8rem;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero h1 em{font-style:normal;color:#FF8C42}
.hero p{color:#F5F0FF;font-size:1.15rem;max-width:680px;margin-bottom:24px}
.hero .btn-group{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}

/* Buttons */
.btn{display:inline-block;padding:12px 28px;border-radius:24px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.btn-primary{background:linear-gradient(135deg,#E8436F,#FF8C42);color:#fff;box-shadow:0 4px 15px rgba(232,67,111,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,67,111,.5);color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:#E8436F}

/* ============ Section Common ============ */
.section{padding:60px 0}
.section-dark{background:linear-gradient(135deg,#2D1B4E,#1A0E2E);color:#F5F0FF}
.section-alt{background:#F3EBF6}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#2D1B4E;margin-bottom:8px}
.section-dark .section-title h2{color:#fff}
.section-title p{color:#666;font-size:1rem}
.section-dark .section-title p{color:#ccc}
.section-title .tag{display:inline-block;background:linear-gradient(135deg,#E8436F,#FF8C42);color:#fff;padding:4px 14px;border-radius:12px;font-size:.8rem;margin-bottom:10px}

/* ============ Stats Bar ============ */
.stats-bar{background:linear-gradient(135deg,#2D1B4E,#3D2B6E);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item{padding:20px}
.stat-num{font-size:2.4rem;font-weight:800;color:#FF8C42;margin-bottom:6px}
.stat-label{font-size:.9rem;color:#F5F0FF}

/* ============ Video Cards Grid (H5 video) ============ */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s;position:relative;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(232,67,111,.15)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;opacity:0;pointer-events:none}
.video-thumb .video-poster{width:100%;height:100%;object-fit:cover;position:relative;z-index:2;transition:transform .5s}
.video-card:hover .video-thumb .video-poster{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;z-index:3}
.video-card:hover .play-btn{opacity:1}
.play-btn span{width:56px;height:56px;background:rgba(232,67,111,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;box-shadow:0 4px 15px rgba(0,0,0,.3)}
.play-btn span::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 h3{font-size:1rem;margin-bottom:6px;color:#2D1B4E;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:.8rem;color:#999}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;background:#F3EBF6;color:#E8436F;padding:2px 8px;border-radius:4px;font-size:.75rem;margin-top:6px}

/* Duration badge */
.duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;z-index:4}

/* ============ Product Cards ============ */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s;border-top:3px solid transparent;position:relative}
.product-card:hover{border-top-color:#E8436F;transform:translateY(-4px)}
.product-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#E8436F,#FF8C42);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.product-card h3{font-size:1rem;color:#2D1B4E;margin-bottom:8px}
.product-card p{font-size:.85rem;color:#666;line-height:1.6}
.product-badge{position:absolute;top:12px;right:12px;background:linear-gradient(135deg,#E8436F,#FF8C42);color:#fff;padding:2px 10px;border-radius:10px;font-size:.7rem}

/* ============ Service Cards ============ */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:#fff;border-radius:12px;padding:30px 24px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s;border-top:3px solid transparent}
.service-card:hover{border-top-color:#E8436F;transform:translateY(-4px)}
.service-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#E8436F,#FF8C42);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.service-card h3{font-size:1.1rem;color:#2D1B4E;margin-bottom:8px}
.service-card p{font-size:.9rem;color:#666;line-height:1.6}

/* ============ Entertainment Section ============ */
.entertainment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ent-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:28px;transition:all .3s}
.ent-card:hover{background:rgba(255,255,255,.12);border-color:rgba(232,67,111,.5);transform:translateY(-4px)}
.ent-icon{width:56px;height:56px;background:linear-gradient(135deg,#E8436F,#FF8C42);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:#fff;margin-bottom:14px}
.ent-card h3{color:#FF8C42;font-size:1.1rem;margin-bottom:10px}
.ent-card p{color:#ccc;font-size:.9rem;line-height:1.7}

/* ============ AI Section ============ */
.ai-features{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ai-card{background:#fff;border:1px solid #eee;border-radius:12px;padding:28px;transition:all .3s}
.ai-card:hover{border-color:rgba(232,67,111,.5);transform:translateY(-4px);box-shadow:0 4px 20px rgba(232,67,111,.1)}
.ai-card h3{color:#E8436F;font-size:1.1rem;margin-bottom:10px}
.ai-card p{color:#666;font-size:.9rem}

/* ============ Community ============ */
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.community-card{border-radius:12px;overflow:hidden;position:relative;height:280px}
.community-card img{width:100%;height:100%;object-fit:cover}
.community-card .overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(26,14,46,.85) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:20px}
.community-card h3{color:#fff;font-size:1.2rem;margin-bottom:6px}
.community-card p{color:#ddd;font-size:.85rem}

/* ============ Expert Team ============ */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100%;aspect-ratio:1;object-fit:cover}
.expert-card .info{padding:16px}
.expert-card h3{font-size:1rem;color:#2D1B4E;margin-bottom:4px}
.expert-card .role{color:#E8436F;font-size:.85rem;margin-bottom:8px}
.expert-card p{font-size:.8rem;color:#666;margin-bottom:12px}
.expert-card .btns{display:flex;gap:8px;justify-content:center}
.expert-card .btns a{font-size:.8rem;padding:6px 14px;border-radius:16px}

/* ============ Article Cards ============ */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s}
.article-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(232,67,111,.12)}
.article-img{height:180px;overflow:hidden}
.article-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.article-card:hover .article-img img{transform:scale(1.05)}
.article-body{padding:18px}
.article-date{font-size:.75rem;color:#999;display:block;margin-bottom:6px}
.article-body h3{font-size:1rem;color:#2D1B4E;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-body p{font-size:.85rem;color:#666;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.read-more{font-size:.85rem;color:#E8436F;font-weight:600}
.read-more:hover{color:#FF8C42}

/* ============ Partner Logos ============ */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall .partner-item{background:#fff;padding:16px 28px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.06);font-size:1rem;font-weight:600;color:#2D1B4E;transition:all .3s}
.partner-wall .partner-item:hover{box-shadow:0 4px 15px rgba(232,67,111,.15)}

/* ============ FAQ ============ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#2D1B4E;transition:background .3s}
.faq-q:hover{background:#F3EBF6}
.faq-q .arrow{transition:transform .3s;color:#E8436F;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:#555;font-size:.95rem}
.faq-item.open .faq-a{padding:0 24px 18px;max-height:500px}

/* ============ Reviews ============ */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 20px rgba(0,0,0,.06)}
.review-card .stars{color:#FF8C42;font-size:1.1rem;margin-bottom:10px}
.review-card blockquote{font-size:.95rem;color:#555;line-height:1.7;margin-bottom:14px;font-style:italic}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#E8436F,#FF8C42);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-card .name{font-weight:600;color:#2D1B4E;font-size:.9rem}
.review-card .date{font-size:.8rem;color:#999}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-info{display:flex;flex-direction:column;gap:16px}
.contact-item{display:flex;align-items:flex-start;gap:12px}
.contact-icon{width:40px;height:40px;background:linear-gradient(135deg,#E8436F,#FF8C42);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;flex-shrink:0}
.contact-item h4{font-size:.95rem;color:#2D1B4E;margin-bottom:2px}
.contact-item p{font-size:.85rem;color:#666}
.section-dark .contact-item h4{color:#F5F0FF}
.section-dark .contact-item p{color:#ccc}
.qrcode-wrap{display:flex;gap:24px;justify-content:center}
.qrcode-wrap .qr-item{text-align:center}
.qrcode-wrap .qr-item img{width:140px;height:140px;border-radius:8px;margin-bottom:8px}
.qrcode-wrap .qr-item span{font-size:.85rem;color:#ccc}

/* ============ How-To Guide ============ */
.howto-steps{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;width:220px;box-shadow:0 4px 15px rgba(0,0,0,.06)}
.howto-step .num{width:40px;height:40px;background:linear-gradient(135deg,#E8436F,#FF8C42);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;margin:0 auto 12px}
.howto-step h4{font-size:.95rem;color:#2D1B4E;margin-bottom:6px}
.howto-step p{font-size:.85rem;color:#666}

/* ============ Share Buttons ============ */
.share-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:20px;color:#fff;font-size:.9rem;transition:all .3s}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* ============ Footer ============ */
.site-footer{background:#1A0E2E;color:#F5F0FF;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{font-size:1rem;margin-bottom:16px;color:#FF8C42}
.footer-col p,.footer-col a{font-size:.85rem;color:#aaa;display:block;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#FF8C42}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:.85rem;color:#888}
.footer-bottom a{color:#E8436F}

/* ============ Breadcrumb ============ */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#999}
.breadcrumb a{color:#E8436F}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ============ Inner Page ============ */
.page-banner{height:300px;position:relative;overflow:hidden;background:#2D1B4E}
.page-banner img{width:100%;height:100%;object-fit:cover;opacity:.6}
.page-banner .overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.page-banner h1{color:#fff;font-size:2.2rem;margin-bottom:8px}
.page-banner p{color:#ddd;font-size:1rem}
.page-content{padding:40px 0}
.page-content h2{font-size:1.6rem;color:#2D1B4E;margin:30px 0 16px}
.page-content h3{font-size:1.2rem;color:#2D1B4E;margin:20px 0 12px}
.page-content p{margin-bottom:16px;line-height:1.8;color:#444}

/* ============ Responsive ============ */
@media(max-width:992px){
  .video-grid,.service-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid,.product-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .ai-features,.entertainment-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2rem}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#2D1B4E;flex-direction:column;padding:10px 0;box-shadow:0 4px 20px rgba(0,0,0,.3)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 24px;border-bottom:none}
  .nav-toggle{display:block}
  .video-grid,.service-grid,.review-grid,.community-grid,.article-grid{grid-template-columns:1fr}
  .expert-grid,.product-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero{height:400px}
  .hero h1{font-size:1.6rem}
  .hero p{font-size:.95rem}
  .section{padding:40px 0}
  .howto-steps{flex-direction:column;align-items:center}
  .stat-num{font-size:1.8rem}
}
@media(max-width:480px){
  .expert-grid,.product-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .header-inner{padding:8px 16px}
  .logo-wrap span{font-size:1rem}
}