/* ============================================
   糖心vlog - 原创样式表
   品牌色系：糖心粉红 #E8456B / 暖橘 #FF7E5F
   ============================================ */

/* === 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","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#333;background:#FFF5F7;line-height:1.7;overflow-x:hidden}
a{color:#E8456B;text-decoration:none;transition:color .3s}
a:hover{color:#FF7E5F}
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}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px;position:relative}
.section-title h2{font-size:32px;color:#1A1A2E;display:inline-block;position:relative;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,#E8456B,#FF7E5F);border-radius:2px}
.section-title p{color:#666;margin-top:10px;font-size:15px}

/* === 顶部导航 === */
.top-header{background:linear-gradient(135deg,#1A1A2E 0%,#2D2D4E 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.15)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:42px;width:auto}
.nav-logo span{color:#fff;font-size:22px;font-weight:700;letter-spacing:1px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{color:rgba(255,255,255,.85);padding:8px 16px;border-radius:6px;font-size:15px;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{color:#fff;background:linear-gradient(135deg,#E8456B,#FF7E5F)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.search-bar{background:linear-gradient(90deg,#E8456B,#FF7E5F);padding:12px 0}
.search-wrap{display:flex;justify-content:center;align-items:center;gap:10px}
.search-wrap input{width:420px;max-width:70%;padding:10px 20px;border:none;border-radius:25px;font-size:15px;outline:none;background:#fff;color:#333}
.search-wrap input::placeholder{color:#999}
.search-wrap button{padding:10px 28px;border:none;border-radius:25px;background:#1A1A2E;color:#fff;font-size:15px;cursor:pointer;transition:all .3s}
.search-wrap button:hover{background:#333;transform:scale(1.05)}

/* === Hero区域 === */
.hero-section{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-section .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.6)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.hero-content h1{font-size:48px;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.hero-content h1 em{font-style:normal;color:#FFD700}
.hero-content p{font-size:20px;opacity:.9;margin-bottom:28px;text-shadow:0 1px 5px rgba(0,0,0,.3)}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(232,69,107,.4);color:#fff}
.btn-outline{display:inline-block;padding:14px 36px;border:2px solid #fff;color:#fff;border-radius:30px;font-size:16px;font-weight:600;transition:all .3s;background:transparent}
.btn-outline:hover{background:#fff;color:#E8456B}

/* === 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 4px 15px rgba(0,0,0,.08);transition:all .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(232,69,107,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img,.video-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img,.video-card:hover .video-thumb video{transform:scale(1.08)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(232,69,107,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s;opacity:0}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}
.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}
.video-info{padding:14px}
.video-info h4{font-size:15px;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;color:#999;font-size:13px}
.video-meta span{display:flex;align-items:center;gap:3px}
.video-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.video-tag{display:inline-block;padding:2px 8px;background:#FFF0F3;color:#E8456B;border-radius:4px;font-size:12px}
.video-label{position:absolute;top:8px;left:8px;background:linear-gradient(135deg,#E8456B,#FF7E5F);color:#fff;padding:2px 10px;border-radius:4px;font-size:12px;font-weight:600;z-index:3}

/* === 服务模块 === */
.services-section{padding:70px 0;background:#fff}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{padding:36px 28px;border-radius:16px;background:linear-gradient(135deg,#FFF5F7,#FFF0F3);text-align:center;transition:all .3s;border:1px solid rgba(232,69,107,.08)}
.service-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(232,69,107,.12);border-color:rgba(232,69,107,.2)}
.service-icon{width:72px;height:72px;margin:0 auto 18px;background:linear-gradient(135deg,#E8456B,#FF7E5F);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff}
.service-card h4{font-size:20px;margin-bottom:10px;color:#1A1A2E}
.service-card p{color:#666;font-size:14px;line-height:1.8}

/* === 娱乐专区 === */
.entertainment-section{padding:70px 0;background:linear-gradient(180deg,#FFF5F7,#fff)}
.ent-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ent-card{border-radius:12px;overflow:hidden;position:relative;height:280px}
.ent-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ent-card:hover img{transform:scale(1.1)}
.ent-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(26,26,46,.85) 0%,transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:20px;color:#fff}
.ent-overlay h4{font-size:18px;margin-bottom:4px}
.ent-overlay p{font-size:13px;opacity:.8}

/* === AI赋能 === */
.ai-section{padding:70px 0;background:#1A1A2E;color:#fff}
.ai-section .section-title h2{color:#fff}
.ai-section .section-title p{color:rgba(255,255,255,.7)}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ai-card{padding:32px 24px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);text-align:center;transition:all .3s}
.ai-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px);border-color:rgba(232,69,107,.4)}
.ai-card .ai-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:16px;background:linear-gradient(135deg,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;font-size:28px}
.ai-card h4{font-size:18px;margin-bottom:8px;color:#fff}
.ai-card p{color:rgba(255,255,255,.65);font-size:14px}

/* === 社区功能 === */
.community-section{padding:70px 0;background:#fff;position:relative;overflow:hidden}
.community-bg{position:absolute;inset:0;opacity:.05;background-size:cover;background-position:center}
.comm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;position:relative;z-index:2}
.comm-card{display:flex;align-items:center;gap:20px;padding:24px;border-radius:14px;background:#FFF5F7;border:1px solid rgba(232,69,107,.08);transition:all .3s}
.comm-card:hover{box-shadow:0 8px 25px rgba(232,69,107,.1);transform:translateX(4px)}
.comm-icon{flex-shrink:0;width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff}
.comm-text h4{font-size:17px;margin-bottom:4px;color:#1A1A2E}
.comm-text p{color:#666;font-size:14px}

/* === 专家展示 === */
.expert-section{padding:70px 0;background:linear-gradient(180deg,#fff,#FFF5F7)}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{text-align:center;padding:28px 20px;border-radius:16px;background:#fff;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(232,69,107,.12)}
.expert-card img{width:100px;height:100px;border-radius:50%;margin:0 auto 14px;object-fit:cover;border:3px solid #E8456B}
.expert-card h4{font-size:17px;margin-bottom:4px}
.expert-card .expert-title{color:#E8456B;font-size:14px;margin-bottom:8px}
.expert-card p{color:#666;font-size:13px;margin-bottom:12px}
.expert-links{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.expert-links a{padding:6px 14px;border-radius:20px;font-size:13px;border:1px solid #E8456B;color:#E8456B;transition:all .3s}
.expert-links a:hover{background:#E8456B;color:#fff}

/* === 信任信号 === */
.trust-section{padding:60px 0;background:#FFF5F7}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.trust-item{text-align:center;padding:24px 16px;border-radius:12px;background:#fff;border:1px solid rgba(232,69,107,.08);transition:all .3s}
.trust-item:hover{border-color:#E8456B;box-shadow:0 4px 15px rgba(232,69,107,.1)}
.trust-icon{font-size:36px;margin-bottom:10px}
.trust-item h5{font-size:14px;color:#1A1A2E;font-weight:600}

/* === 合作品牌 === */
.partner-section{padding:60px 0;background:#fff}
.partner-logos{display:flex;justify-content:center;align-items:center;gap:40px;flex-wrap:wrap;opacity:.7}
.partner-logos span{font-size:24px;font-weight:700;color:#999;padding:16px 28px;border:2px solid #eee;border-radius:12px;transition:all .3s}
.partner-logos span:hover{color:#E8456B;border-color:#E8456B;opacity:1}

/* === 用户评论 === */
.review-section{padding:70px 0;background:linear-gradient(180deg,#FFF5F7,#fff)}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{padding:24px;border-radius:14px;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.05);transition:all .3s}
.review-card:hover{box-shadow:0 6px 20px rgba(232,69,107,.1)}
.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,#E8456B,#FF7E5F);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px}
.review-name{font-weight:600;font-size:15px}
.review-date{color:#999;font-size:12px}
.review-stars{color:#FFD700;font-size:14px;margin-bottom:8px}
.review-text{color:#555;font-size:14px;line-height:1.8}

/* === FAQ === */
.faq-section{padding:70px 0;background:#fff}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{margin-bottom:12px;border:1px solid #f0e0e5;border-radius:10px;overflow:hidden;transition:all .3s}
.faq-item:hover{border-color:#E8456B}
.faq-q{padding:18px 24px;background:#FFF5F7;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;color:#1A1A2E;transition:all .3s}
.faq-q:hover{background:#FFE8EE}
.faq-q::after{content:'+';font-size:22px;color:#E8456B;transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#666;font-size:14px;line-height:1.8}
.faq-item.active .faq-a{padding:16px 24px;max-height:300px}

/* === 联系我们 === */
.contact-section{padding:70px 0;background:linear-gradient(135deg,#1A1A2E,#2D2D4E);color:#fff}
.contact-section .section-title h2{color:#fff}
.contact-section .section-title p{color:rgba(255,255,255,.7)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.contact-card{padding:28px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);text-align:center}
.contact-card h4{font-size:18px;margin-bottom:14px;color:#FFD700}
.contact-card p{color:rgba(255,255,255,.75);font-size:14px;line-height:2}
.contact-card img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* === 社交分享 === */
.share-bar{padding:24px 0;background:#FFF5F7;text-align:center}
.share-bar span{margin-right:12px;color:#666;font-size:14px}
.share-btns{display:inline-flex;gap:10px}
.share-btns a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;color:#fff;font-size:16px;transition:all .3s}
.share-btns a:hover{transform:scale(1.15)}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#111}
.share-bilibili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:#0D0D1A;color:rgba(255,255,255,.6);padding:40px 0 20px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer-brand h3{color:#fff;font-size:20px;margin-bottom:10px}
.footer-brand p{font-size:13px;line-height:1.8}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#E8456B}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:13px;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#E8456B}
.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,.08);padding-top:18px;text-align:center;font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.6)}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;background:#FFF0F3;font-size:14px;color:#666}
.breadcrumb a{color:#E8456B}
.breadcrumb span{margin:0 6px;color:#ccc}

/* === 内页通用 === */
.page-hero{height:320px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.page-hero .hero-content{position:relative;z-index:2;text-align:center;color:#fff}
.page-hero h1{font-size:38px;margin-bottom:8px}
.page-hero p{font-size:16px;opacity:.85}
.page-content{padding:50px 0}
.content-text{max-width:800px;margin:0 auto;font-size:15px;line-height:2;color:#555}
.content-text h3{color:#1A1A2E;margin:28px 0 12px;font-size:22px}
.content-text p{margin-bottom:16px}

/* === 内页视频列表 === */
.inner-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid,.ent-grid,.expert-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid,.ai-grid,.contact-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .inner-video-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:70px;left:0;right:0;background:#1A1A2E;flex-direction:column;padding:20px;gap:4px}
  .nav-menu.show{display:flex}
  .nav-toggle{display:flex}
  .hero-content h1{font-size:30px}
  .hero-section{height:380px}
  .video-grid,.ent-grid{grid-template-columns:1fr 1fr}
  .service-grid,.ai-grid,.expert-grid,.contact-grid,.comm-grid,.review-grid,.trust-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .search-wrap input{width:60%}
  .section-title h2{font-size:24px}
  .inner-video-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .video-grid,.ent-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:24px}
  .hero-btns{flex-direction:column;align-items:center}
  .partner-logos{gap:16px}
  .partner-logos span{font-size:16px;padding:10px 16px}
}

/* === 懒加载 === */
img[loading="lazy"]{opacity:0;transition:opacity .5s}
img.loaded,img[loading="lazy"]{opacity:1}

/* === 动画 === */
.fade-in{opacity:0;transform:translateY(20px);transition:all .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}