/* ========================================
   糖心vlog - 原创样式表
   品牌色系：糖心粉 #FF6B9D / 梦幻紫 #C44DFF / 暖橙 #FFB347
   ======================================== */

/* === 基础重置 === */
*,*::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:#2D2D3F;background:#F8F0FF;line-height:1.7;overflow-x:hidden}
a{color:#C44DFF;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B9D}
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}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#1A1A2E;position:relative;display:inline-block;padding-bottom:12px}
.section-title h2::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#FF6B9D,#C44DFF);border-radius:2px}
.section-title p{color:#8E8EA0;margin-top:10px;font-size:1rem}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(26,26,46,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,107,157,.15);transition:background .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1200px;margin:0 auto;padding:0 20px}
.site-logo{display:flex;align-items:center;gap:8px}
.site-logo img{height:38px;width:auto}
.site-logo span{color:#fff;font-size:1.2rem;font-weight:700}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{color:rgba(255,255,255,.85);font-size:.9rem;padding:6px 14px;border-radius:6px;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:linear-gradient(135deg,#FF6B9D,#C44DFF);box-shadow:0 2px 12px rgba(196,77,255,.3)}
.nav-search{position:relative;margin-left:12px}
.nav-search input{width:180px;height:34px;border:1px solid rgba(255,107,157,.3);border-radius:17px;background:rgba(255,255,255,.08);color:#fff;padding:0 34px 0 14px;font-size:.85rem;outline:none;transition:all .3s}
.nav-search input::placeholder{color:rgba(255,255,255,.4)}
.nav-search input:focus{border-color:#FF6B9D;background:rgba(255,255,255,.12);width:220px}
.nav-search button{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:28px;height:28px;border:none;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;color:#fff;cursor:pointer;font-size:.8rem;display:flex;align-items:center;justify-content:center}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.mobile-toggle span{width:24px;height:2px;background:#fff;border-radius:1px;transition:all .3s}

/* === Hero区域 === */
.hero-section{position:relative;height:80vh;min-height:500px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:64px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.6)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,26,46,.3) 0%,rgba(26,26,46,.7) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:3rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.4)}
.hero-content h1 em{font-style:normal;background:linear-gradient(90deg,#FF6B9D,#FFB347);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:1.2rem;opacity:.9;max-width:600px;margin:0 auto 30px}
.hero-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff;border-radius:30px;font-size:1.05rem;font-weight:600;box-shadow:0 4px 20px rgba(196,77,255,.4);transition:all .3s}
.hero-btn:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(196,77,255,.55);color:#fff}
.hero-btn svg{width:20px;height:20px}

/* === 面包屑 === */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#8E8EA0}
.breadcrumb a{color:#C44DFF}
.breadcrumb span{margin:0 6px}

/* === 视频卡片 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 2px 16px rgba(26,26,46,.08);transition:all .35s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(196,77,255,.18)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-thumb img{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;background:rgba(26,26,46,.35);opacity:0;transition:opacity .3s}
.video-card:hover .video-play-btn{opacity:1}
.video-play-btn span{width:56px;height:56px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(196,77,255,.5)}
.video-play-btn span::after{content:"";border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-info{padding:14px 16px}
.video-info h3{font-size:.95rem;color:#1A1A2E;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.video-meta{display:flex;gap:12px;font-size:.8rem;color:#8E8EA0}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tag{display:inline-block;padding:2px 8px;background:linear-gradient(135deg,rgba(255,107,157,.1),rgba(196,77,255,.1));color:#C44DFF;border-radius:4px;font-size:.75rem;margin-top:6px}

/* === 栏目模块 === */
.section-block{padding:60px 0}
.section-block:nth-child(even){background:#fff}
.section-block.dark-bg{background:#1A1A2E;color:#fff}
.section-block.dark-bg .section-title h2{color:#fff}
.section-block.dark-bg .section-title p{color:rgba(255,255,255,.6)}

/* === 影视传媒模块 === */
.media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.media-item{text-align:center;padding:30px 20px;background:#fff;border-radius:14px;box-shadow:0 2px 16px rgba(26,26,46,.06);transition:all .3s}
.media-item:hover{transform:translateY(-4px);box-shadow:0 6px 24px rgba(196,77,255,.12)}
.media-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.media-item h4{font-size:1.05rem;color:#1A1A2E;margin-bottom:8px}
.media-item p{font-size:.85rem;color:#8E8EA0;line-height:1.6}

/* === 娱乐专区 === */
.ent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ent-card{position:relative;border-radius:14px;overflow:hidden;height:260px}
.ent-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.ent-card:hover img{transform:scale(1.08)}
.ent-card-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(26,26,46,.85) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:20px}
.ent-card-overlay h4{color:#fff;font-size:1.1rem;margin-bottom:4px}
.ent-card-overlay p{color:rgba(255,255,255,.7);font-size:.85rem}

/* === AI赋能 === */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,107,157,.15);border-radius:14px;padding:30px 24px;text-align:center;transition:all .3s}
.ai-card:hover{border-color:#C44DFF;background:rgba(196,77,255,.08);transform:translateY(-4px)}
.ai-card .ai-icon{font-size:2.5rem;margin-bottom:16px}
.ai-card h4{font-size:1.1rem;margin-bottom:10px}
.ai-card p{font-size:.85rem;color:rgba(255,255,255,.65);line-height:1.6}

/* === 社区功能 === */
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:center}
.community-img{border-radius:14px;overflow:hidden}
.community-img img{width:100%;height:auto}
.community-list{display:flex;flex-direction:column;gap:16px}
.community-item{display:flex;gap:16px;align-items:flex-start;padding:16px;background:#fff;border-radius:12px;box-shadow:0 2px 12px rgba(26,26,46,.06);transition:all .3s}
.community-item:hover{box-shadow:0 4px 20px rgba(196,77,255,.12)}
.community-item .ci-icon{flex-shrink:0;width:48px;height:48px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff}
.community-item h4{font-size:1rem;color:#1A1A2E;margin-bottom:4px}
.community-item p{font-size:.85rem;color:#8E8EA0}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{text-align:center;background:#fff;border-radius:14px;padding:30px 20px;box-shadow:0 2px 16px rgba(26,26,46,.06);transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 6px 24px rgba(196,77,255,.12)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(135deg,#FF6B9D,#C44DFF);background-origin:border-box;background-clip:padding-box,border-box}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:1.05rem;color:#1A1A2E;margin-bottom:4px}
.expert-card .expert-role{color:#C44DFF;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.82rem;color:#8E8EA0;line-height:1.5;margin-bottom:14px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600;transition:all .3s}
.expert-btns .btn-primary{background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff}
.expert-btns .btn-outline{border:1px solid #C44DFF;color:#C44DFF}
.expert-btns .btn-outline:hover{background:#C44DFF;color:#fff}

/* === 合作品牌 === */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;padding:20px 0}
.partner-wall .partner-item{width:140px;height:70px;background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(26,26,46,.06);padding:10px;transition:all .3s;filter:grayscale(.5);opacity:.7}
.partner-wall .partner-item:hover{filter:grayscale(0);opacity:1;box-shadow:0 4px 20px rgba(196,77,255,.15)}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.howto-step{position:relative;padding:30px 20px 20px;background:#fff;border-radius:14px;box-shadow:0 2px 16px rgba(26,26,46,.06);text-align:center;counter-increment:step}
.howto-step::before{content:counter(step);position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:36px;height:36px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;color:#fff;font-size:1rem;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(196,77,255,.3)}
.howto-step h4{font-size:1rem;color:#1A1A2E;margin:12px 0 8px}
.howto-step p{font-size:.85rem;color:#8E8EA0;line-height:1.5}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#fff;border-radius:14px;padding:24px;box-shadow:0 2px 16px rgba(26,26,46,.06)}
.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,#FF6B9D,#C44DFF);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.review-name{font-weight:600;color:#1A1A2E;font-size:.95rem}
.review-date{font-size:.8rem;color:#8E8EA0}
.review-stars{color:#FFB347;font-size:.9rem;margin-bottom:8px}
.review-text{font-size:.9rem;color:#2D2D3F;line-height:1.7}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 2px 12px rgba(26,26,46,.05);overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#1A1A2E;font-size:1rem;transition:background .3s}
.faq-question:hover{background:rgba(196,77,255,.04)}
.faq-question .faq-toggle{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-toggle{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:#8E8EA0;font-size:.9rem;line-height:1.7}
.faq-item.open .faq-answer{padding:0 24px 18px;max-height:300px}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#fff;border-radius:14px;padding:30px 24px;text-align:center;box-shadow:0 2px 16px rgba(26,26,46,.06)}
.contact-card .cc-icon{font-size:2rem;margin-bottom:12px}
.contact-card h4{font-size:1.05rem;color:#1A1A2E;margin-bottom:8px}
.contact-card p{font-size:.85rem;color:#8E8EA0;line-height:1.6}

/* === 社交分享 === */
.share-bar{display:flex;justify-content:center;gap:12px;padding:20px 0}
.share-btn{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:translateY(-3px)}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#1A1A2E}
.share-btn.bilibili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:#1A1A2E;color:rgba(255,255,255,.7);padding:40px 0 20px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-brand .footer-logo img{height:32px}
.footer-brand .footer-logo span{color:#fff;font-weight:700;font-size:1.1rem}
.footer-brand p{font-size:.85rem;line-height:1.6;color:rgba(255,255,255,.5)}
.footer-col h5{color:#fff;font-size:.95rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h5::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#FF6B9D,#C44DFF);border-radius:1px}
.footer-col a{display:block;color:rgba(255,255,255,.5);font-size:.85rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B9D}
.footer-qrcodes{display:flex;gap:20px;justify-content:center;margin:20px 0}
.footer-qrcodes .qr-item{text-align:center}
.footer-qrcodes .qr-item img{width:120px;height:120px;border-radius:8px;margin-bottom:6px}
.footer-qrcodes .qr-item span{font-size:.8rem;color:rgba(255,255,255,.5)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;text-align:center;font-size:.82rem;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5)}

/* === 内页通用 === */
.page-hero{height:320px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;margin-top:64px}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.page-hero .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,26,46,.2),rgba(26,26,46,.7))}
.page-hero-content{position:relative;z-index:2;text-align:center;color:#fff}
.page-hero-content h1{font-size:2.4rem;margin-bottom:8px}
.page-hero-content p{font-size:1.05rem;opacity:.85}

/* === 内页内容区 === */
.page-content{padding:40px 0 60px}
.content-article{max-width:900px;margin:0 auto}
.content-article h2{font-size:1.6rem;color:#1A1A2E;margin:30px 0 16px;padding-left:14px;border-left:4px solid #C44DFF}
.content-article h3{font-size:1.3rem;color:#2D2D3F;margin:24px 0 12px}
.content-article p{margin-bottom:16px;line-height:1.8;color:#2D2D3F}
.content-article img{border-radius:12px;margin:20px 0;box-shadow:0 4px 20px rgba(26,26,46,.1)}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-cloud span{padding:4px 14px;background:linear-gradient(135deg,rgba(255,107,157,.08),rgba(196,77,255,.08));color:#C44DFF;border-radius:20px;font-size:.82rem;transition:all .3s;cursor:default}
.tag-cloud span:hover{background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:64px;left:0;width:100%;background:rgba(26,26,46,.98);flex-direction:column;padding:16px;gap:4px}
  .main-nav.open{display:flex}
  .main-nav a{padding:10px 16px}
  .mobile-toggle{display:flex}
  .nav-search{display:none}
  .hero-content h1{font-size:2rem}
  .hero-section{height:60vh;min-height:380px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .media-grid{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:1fr}
  .ai-features{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .section-block{padding:40px 0}
  .page-hero{height:240px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:1.6rem}
  .section-title h2{font-size:1.5rem}
}

/* === 动画（渐进增强，默认可见） === */
.fade-in{opacity:1;transform:translateY(0);transition:all .6s ease-out}
.fade-in.animate-ready{opacity:0;transform:translateY(20px)}
.fade-in.visible{opacity:1;transform:translateY(0)}