/* ============================================
   糖心vlog - 原创样式表
   品牌：糖心vlog | 域名：stegLy.cn
   配色：糖果粉+蜜糖金+暗紫黑
   ============================================ */

/* === 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","Hiragino Sans GB",Arial,sans-serif;color:#333;background:#FFF8F0;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s}
a:hover{color:#FF6B9D}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.site-header{background:#2D1B33;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto;height:68px}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:42px;width:auto;border-radius:6px}
.nav-logo span{color:#FFD93D;font-size:1.3rem;font-weight:700;letter-spacing:1px}
.nav-menu{display:flex;gap:6px}
.nav-menu a{color:#fff;padding:8px 16px;border-radius:20px;font-size:.95rem;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{background:#FF6B9D;color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

/* === 搜索栏 === */
.search-bar{background:linear-gradient(135deg,#FF6B9D 0%,#C44569 100%);padding:14px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%;background:#fff;border-radius:30px;overflow:hidden;box-shadow:0 4px 15px rgba(255,107,157,.3)}
.search-box input{flex:1;border:none;padding:12px 24px;font-size:1rem;outline:none;background:transparent}
.search-box button{background:#FFD93D;border:none;padding:12px 28px;cursor:pointer;font-size:1rem;font-weight:600;color:#2D1B33;transition:background .3s}
.search-box button:hover{background:#FFC107}

/* === Hero区域 === */
.hero-section{position:relative;height:520px;overflow:hidden;background:#2D1B33}
.hero-section img{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:linear-gradient(to bottom,rgba(45,27,51,.3),rgba(45,27,51,.7))}
.hero-overlay h1{font-size:2.8rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero-overlay h1 em{font-style:normal;color:#FFD93D}
.hero-overlay p{font-size:1.2rem;color:rgba(255,255,255,.9);max-width:700px;margin-bottom:24px}
.hero-btn{display:inline-block;background:#FF6B9D;color:#fff;padding:14px 40px;border-radius:30px;font-size:1.1rem;font-weight:600;transition:all .3s;box-shadow:0 4px 15px rgba(255,107,157,.4)}
.hero-btn:hover{background:#C44569;transform:translateY(-2px);color:#fff}

/* === 通用模块标题 === */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#2D1B33;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#FF6B9D,#FFD93D);border-radius:3px}
.section-title p{color:#666;font-size:1rem;margin-top:16px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;padding:60px 0}
.video-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(255,107,157,.2)}
.video-card .thumb{position:relative;padding-top:56.25%;background:#eee;overflow:hidden}
.video-card .thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}
.video-card .play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(255,107,157,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s}
.video-card .play-icon::after{content:'';border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card:hover .play-icon{background:#C44569;transform:translate(-50%,-50%) scale(1.1)}
.video-card .card-body{padding:16px}
.video-card .card-body h3{font-size:1rem;color:#2D1B33;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;gap:12px;font-size:.82rem;color:#999}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .tag{position:absolute;top:12px;left:12px;background:#FF6B9D;color:#fff;padding:3px 10px;border-radius:12px;font-size:.75rem;z-index:2}

/* === 服务模块 === */
.services-section{padding:70px 0;background:#fff}
.services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.service-card{background:linear-gradient(145deg,#FFF8F0,#fff);border:1px solid #f0e6dd;border-radius:16px;padding:32px 24px;text-align:center;transition:all .3s}
.service-card:hover{border-color:#FF6B9D;box-shadow:0 8px 25px rgba(255,107,157,.15);transform:translateY(-4px)}
.service-card .icon{width:64px;height:64px;margin:0 auto 18px;background:linear-gradient(135deg,#FF6B9D,#FFD93D);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.service-card h3{font-size:1.15rem;color:#2D1B33;margin-bottom:10px}
.service-card p{font-size:.9rem;color:#666;line-height:1.6}

/* === AI赋能模块 === */
.ai-section{padding:70px 0;background:linear-gradient(135deg,#2D1B33 0%,#4a2d5e 100%);color:#fff}
.ai-section .section-title h2{color:#FFD93D}
.ai-section .section-title p{color:rgba(255,255,255,.7)}
.ai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.ai-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:30px;backdrop-filter:blur(10px);transition:all .3s}
.ai-card:hover{background:rgba(255,255,255,.15);border-color:#FF6B9D}
.ai-card h3{color:#FFD93D;margin-bottom:12px;font-size:1.1rem}
.ai-card p{color:rgba(255,255,255,.8);font-size:.92rem;line-height:1.7}

/* === 社区功能 === */
.community-section{padding:70px 0;background:#FFF8F0}
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px}
.community-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:all .3s}
.community-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(255,107,157,.15)}
.community-card img{width:100%;height:200px;object-fit:cover}
.community-card .info{padding:20px}
.community-card h3{font-size:1.05rem;color:#2D1B33;margin-bottom:8px}
.community-card p{font-size:.88rem;color:#666;line-height:1.6}

/* === 专家展示 === */
.experts-section{padding:70px 0;background:#fff}
.experts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.expert-card{background:#FFF8F0;border-radius:16px;padding:30px;text-align:center;transition:all .3s;border:1px solid transparent}
.expert-card:hover{border-color:#FF6B9D;box-shadow:0 8px 25px rgba(255,107,157,.12)}
.expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid #FFD93D}
.expert-card h3{font-size:1.1rem;color:#2D1B33;margin-bottom:4px}
.expert-card .role{color:#FF6B9D;font-size:.88rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#666;line-height:1.6;margin-bottom:14px}
.expert-card .expert-btns{display:flex;gap:10px;justify-content:center}
.expert-card .btn-sm{padding:6px 16px;border-radius:20px;font-size:.82rem;border:1px solid #FF6B9D;color:#FF6B9D;transition:all .3s}
.expert-card .btn-sm:hover{background:#FF6B9D;color:#fff}

/* === 合作品牌 === */
.partners-section{padding:60px 0;background:#FFF8F0}
.partners-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partners-wall .partner-item{background:#fff;padding:16px 28px;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.05);font-size:1rem;font-weight:600;color:#2D1B33;transition:all .3s;border:1px solid #f0e6dd}
.partners-wall .partner-item:hover{border-color:#FF6B9D;color:#FF6B9D}

/* === 用户评价 === */
.reviews-section{padding:70px 0;background:#fff}
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.review-card{background:#FFF8F0;border-radius:14px;padding:28px;border-left:4px solid #FF6B9D;transition:all .3s}
.review-card:hover{box-shadow:0 6px 20px rgba(255,107,157,.12)}
.review-card .stars{color:#FFD93D;font-size:1.1rem;margin-bottom:10px}
.review-card p{font-size:.92rem;color:#555;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:#FF6B9D;color:#fff;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600}
.review-card .reviewer .name{font-size:.88rem;color:#2D1B33;font-weight:600}
.review-card .reviewer .date{font-size:.78rem;color:#999}

/* === FAQ === */
.faq-section{padding:70px 0;background:#FFF8F0}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:14px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.faq-item .faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#2D1B33;transition:all .3s}
.faq-item .faq-q:hover{color:#FF6B9D}
.faq-item .faq-q .arrow{transition:transform .3s;color:#FF6B9D;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#666;font-size:.92rem;line-height:1.7}
.faq-item.open .faq-a{padding:0 24px 18px;max-height:500px}

/* === 联系我们 === */
.contact-section{padding:70px 0;background:#fff}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.contact-card{background:#FFF8F0;border-radius:14px;padding:28px;text-align:center}
.contact-card h3{color:#2D1B33;margin-bottom:12px;font-size:1.05rem}
.contact-card p{color:#666;font-size:.9rem;line-height:1.7}
.contact-card img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* === How-To指南 === */
.howto-section{padding:70px 0;background:#FFF8F0}
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;max-width:1000px;margin:0 auto}
.howto-step{text-align:center;padding:24px}
.howto-step .step-num{width:48px;height:48px;background:linear-gradient(135deg,#FF6B9D,#C44569);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 h3{font-size:1rem;color:#2D1B33;margin-bottom:8px}
.howto-step p{font-size:.88rem;color:#666}

/* === 社交分享 === */
.share-bar{background:#2D1B33;padding:20px 0}
.share-bar .container{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.share-bar span{color:#fff;font-size:.95rem}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:.88rem;color:#fff;transition:all .3s}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}
.share-btn:hover{opacity:.85;transform:translateY(-2px);color:#fff}

/* === 页脚 === */
.site-footer{background:#1a0f20;color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:30px;margin-bottom:40px}
.footer-col h4{color:#FFD93D;margin-bottom:16px;font-size:1rem}
.footer-col p,.footer-col a{font-size:.88rem;color:rgba(255,255,255,.6);line-height:2}
.footer-col a:hover{color:#FF6B9D}
.footer-col img{max-width:120px;border-radius:8px;margin-top:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.4)}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#999}
.breadcrumb a{color:#FF6B9D}
.breadcrumb span{margin:0 6px;color:#ccc}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#2D1B33,#4a2d5e);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.7);font-size:1rem}
.page-content{padding:50px 0}

/* === 视频播放页 === */
.video-player-wrap{max-width:900px;margin:0 auto;background:#000;border-radius:14px;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,.2)}
.video-player-wrap video{width:100%;display:block}
.video-info{max-width:900px;margin:24px auto;padding:0 20px}
.video-info h1{font-size:1.6rem;color:#2D1B33;margin-bottom:12px}
.video-info .meta{display:flex;gap:20px;color:#999;font-size:.9rem;margin-bottom:16px;flex-wrap:wrap}
.video-info .desc{color:#555;font-size:.95rem;line-height:1.8}

/* === 响应式 === */
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:68px;left:0;right:0;background:#2D1B33;flex-direction:column;padding:20px;gap:8px}
  .nav-menu.show{display:flex}
  .nav-toggle{display:flex}
  .hero-section{height:380px}
  .hero-overlay h1{font-size:1.8rem}
  .hero-overlay p{font-size:1rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
  .section-title h2{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr 1fr}
  .reviews-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .nav-logo span{font-size:1rem}
  .hero-section{height:300px}
  .hero-overlay h1{font-size:1.4rem}
  .video-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .services-grid,.ai-grid,.community-grid,.experts-grid{grid-template-columns:1fr}
}