/* ============================================
   母狗 - 原创样式表
   品牌色系：糖心粉 #FF6B9D / 深玫红 #C44569 / 梦幻紫 #7C5CFC
   背景色系：深夜蓝黑 #0D0B1A / 暗紫灰 #1A1730
   文字色系：淡紫白 #EEEAF6 / 灰紫 #9B95B0
   ============================================ */

/* === 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;background:#0D0B1A;color:#EEEAF6;line-height:1.7;overflow-x:hidden}
a{color:#FF6B9D;text-decoration:none;transition:color .3s}
a:hover{color:#7C5CFC}
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:#EEEAF6}

/* === 容器 === */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,11,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(124,92,252,.15);transition:background .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{height:42px;width:auto}
.site-logo span{font-size:1.25rem;font-weight:800;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 14px;border-radius:8px;font-size:.9rem;color:#EEEAF6;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{background:rgba(255,107,157,.12);color:#FF6B9D}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#EEEAF6;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.search-bar{position:relative;width:100%;max-width:600px;margin:0 auto;padding:12px 20px}
.search-bar-wrapper{background:rgba(26,23,48,.8);border:1px solid rgba(124,92,252,.25);border-radius:50px;display:flex;align-items:center;padding:4px 4px 4px 20px;transition:border-color .3s}
.search-bar-wrapper:focus-within{border-color:#FF6B9D;box-shadow:0 0 20px rgba(255,107,157,.15)}
.search-bar input{flex:1;background:transparent;border:none;outline:none;color:#EEEAF6;font-size:.95rem;padding:8px 0}
.search-bar input::placeholder{color:#9B95B0}
.search-bar button{background:linear-gradient(135deg,#FF6B9D,#7C5CFC);border:none;color:#fff;padding:10px 22px;border-radius:50px;cursor:pointer;font-size:.9rem;transition:opacity .3s}
.search-bar button:hover{opacity:.85}

/* === Banner区域 === */
.hero-banner{position:relative;width:100%;min-height:520px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:68px}
.hero-banner .banner-bg{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.hero-banner .banner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(180deg,rgba(13,11,26,.3) 0%,rgba(13,11,26,.85) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;padding:40px 20px;max-width:800px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:1.1rem;color:#c8c3d8;margin-bottom:24px;line-height:1.8}
.hero-content .hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.hero-content .hero-tags span{background:rgba(124,92,252,.18);border:1px solid rgba(124,92,252,.3);padding:6px 16px;border-radius:20px;font-size:.85rem;color:#c8c3d8}

/* === 通用区块 === */
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);margin:12px auto 0;border-radius:3px}
.section-title p{color:#9B95B0;font-size:.95rem;margin-top:8px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.video-card{background:#1A1730;border-radius:14px;overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(124,92,252,.2)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb img{transform:scale(1.05)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:60px;height:60px;background:rgba(255,107,157,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;z-index:3}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-card .play-btn::after{content:'';display:block;width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card .card-body{padding:16px}
.video-card .card-body h3{font-size:1rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-meta{display:flex;align-items:center;gap:14px;color:#9B95B0;font-size:.8rem}
.video-card .card-meta span{display:flex;align-items:center;gap:4px}
.video-card .card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.video-card .card-tags span{background:rgba(124,92,252,.12);color:#b8b0d0;padding:3px 10px;border-radius:12px;font-size:.75rem}
.video-card .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:2}

/* === 模块卡片 === */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.module-card{background:#1A1730;border-radius:14px;padding:28px;transition:transform .3s,box-shadow .3s;border:1px solid rgba(124,92,252,.08)}
.module-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(124,92,252,.15);border-color:rgba(255,107,157,.2)}
.module-card .icon{width:52px;height:52px;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:16px}
.module-card h3{font-size:1.1rem;margin-bottom:10px}
.module-card p{color:#9B95B0;font-size:.9rem;line-height:1.6}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.expert-card{background:#1A1730;border-radius:16px;padding:28px;text-align:center;transition:transform .3s;border:1px solid rgba(124,92,252,.08)}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(124,92,252,.15)}
.expert-card .avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid rgba(255,107,157,.3)}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1.05rem;margin-bottom:4px}
.expert-card .title{color:#FF6B9D;font-size:.85rem;margin-bottom:12px}
.expert-card p{color:#9B95B0;font-size:.85rem;line-height:1.6;margin-bottom:16px}
.expert-card .awards{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:16px}
.expert-card .awards span{background:rgba(255,107,157,.1);color:#FF6B9D;padding:3px 10px;border-radius:12px;font-size:.75rem}
.expert-card .expert-btns{display:flex;gap:10px;justify-content:center}
.expert-card .expert-btns a{padding:8px 18px;border-radius:20px;font-size:.82rem;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff!important}
.btn-primary:hover{opacity:.85}
.btn-outline{border:1px solid rgba(124,92,252,.4);color:#7C5CFC!important}
.btn-outline:hover{background:rgba(124,92,252,.1)}

/* === 合作品牌Logo墙 === */
.brand-wall{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center}
.brand-wall .brand-item{background:#1A1730;border-radius:12px;padding:20px 30px;min-width:160px;text-align:center;border:1px solid rgba(124,92,252,.08);transition:all .3s;font-size:1rem;font-weight:600;color:#9B95B0}
.brand-wall .brand-item:hover{border-color:rgba(255,107,157,.3);color:#FF6B9D}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#1A1730;border-radius:12px;margin-bottom:12px;overflow:hidden;border:1px solid rgba(124,92,252,.08)}
.faq-item .faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:color .3s}
.faq-item .faq-q:hover{color:#FF6B9D}
.faq-item .faq-q .arrow{transition:transform .3s;color:#7C5CFC;font-size:1.2rem}
.faq-item.active .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s;color:#9B95B0;font-size:.9rem;line-height:1.7}
.faq-item.active .faq-a{max-height:300px;padding:0 24px 18px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.review-card{background:#1A1730;border-radius:14px;padding:24px;border:1px solid rgba(124,92,252,.08)}
.review-card .review-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-card .review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;color:#fff;flex-shrink:0}
.review-card .review-info h4{font-size:.95rem;margin-bottom:2px}
.review-card .review-info .stars{color:#FFD700;font-size:.85rem;letter-spacing:2px}
.review-card .review-text{color:#c8c3d8;font-size:.9rem;line-height:1.7}
.review-card .review-date{color:#9B95B0;font-size:.78rem;margin-top:10px}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:#1A1730;border-radius:14px;padding:24px;border:1px solid rgba(124,92,252,.08)}
.contact-card h3{font-size:1rem;margin-bottom:14px;color:#FF6B9D}
.contact-card p{color:#9B95B0;font-size:.9rem;margin-bottom:8px;line-height:1.6}
.contact-card .qr-img{width:160px;height:160px;margin:12px auto;border-radius:10px;overflow:hidden}
.contact-card .qr-img img{width:100%;height:100%;object-fit:cover}

/* === 社交分享 === */
.share-bar{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:25px;font-size:.88rem;color:#fff;transition:all .3s;cursor:pointer;border:none}
.share-btn:hover{transform:translateY(-2px);opacity:.9}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px;max-width:1000px;margin:0 auto}
.howto-step{background:#1A1730;border-radius:14px;padding:28px;text-align:center;border:1px solid rgba(124,92,252,.08);position:relative}
.howto-step .step-num{width:40px;height:40px;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;margin:0 auto 16px}
.howto-step h4{font-size:1rem;margin-bottom:8px}
.howto-step p{color:#9B95B0;font-size:.85rem;line-height:1.6}

/* === 页脚 === */
.site-footer{background:#0a0819;border-top:1px solid rgba(124,92,252,.1);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{font-size:1rem;margin-bottom:14px;color:#FF6B9D}
.footer-col p,.footer-col a{color:#9B95B0;font-size:.88rem;line-height:1.8;display:block}
.footer-col a:hover{color:#FF6B9D}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(124,92,252,.08);color:#9B95B0;font-size:.82rem}
.footer-bottom .qr-row{display:flex;gap:30px;justify-content:center;margin:20px 0}
.footer-bottom .qr-box{text-align:center}
.footer-bottom .qr-box img{width:120px;height:120px;border-radius:8px;margin-bottom:6px}
.footer-bottom .qr-box p{font-size:.78rem;color:#9B95B0}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#9B95B0}
.breadcrumb a{color:#FF6B9D}
.breadcrumb span{margin:0 8px;color:#9B95B0}

/* === 内页Banner === */
.page-banner{position:relative;width:100%;min-height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:68px}
.page-banner .banner-bg{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;filter:brightness(.4)}
.page-banner .banner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(180deg,rgba(13,11,26,.2) 0%,rgba(13,11,26,.9) 100%)}
.page-banner .banner-text{position:relative;z-index:2;text-align:center;padding:40px 20px}
.page-banner .banner-text h1{font-size:2.2rem;margin-bottom:10px}
.page-banner .banner-text p{color:#c8c3d8;font-size:1rem}

/* === 标签列表 === */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-list .tag{background:rgba(124,92,252,.12);color:#b8b0d0;padding:5px 14px;border-radius:20px;font-size:.82rem;transition:all .3s}
.tag-list .tag:hover{background:rgba(255,107,157,.15);color:#FF6B9D}

/* === 数据统计条 === */
.stats-bar{display:flex;flex-wrap:wrap;gap:30px;justify-content:center;padding:30px 0}
.stat-item{text-align:center}
.stat-item .num{font-size:2rem;font-weight:800;background:linear-gradient(135deg,#FF6B9D,#7C5CFC);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .label{color:#9B95B0;font-size:.85rem;margin-top:4px}

/* === 懒加载占位 === */
.lazy-img{opacity:0;transition:opacity .5s}
.lazy-img.loaded{opacity:1}

/* === 按钮通用 === */
.btn{display:inline-block;padding:12px 28px;border-radius:25px;font-size:.92rem;font-weight:600;transition:all .3s;cursor:pointer;border:none;text-align:center}
.btn-gradient{background:linear-gradient(135deg,#FF6B9D,#7C5CFC);color:#fff}
.btn-gradient:hover{opacity:.85;transform:translateY(-2px)}

/* === MCP前端占位 === */
.mcp-widget{background:#1A1730;border-radius:14px;padding:20px;border:1px solid rgba(124,92,252,.08);margin:20px 0;text-align:center;color:#9B95B0;font-size:.88rem}

/* === 响应式 === */
@media(max-width:768px){
  .main-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(13,11,26,.97);flex-direction:column;padding:20px;gap:4px;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid rgba(124,92,252,.15)}
  .main-nav.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .hero-content h1{font-size:1.8rem}
  .hero-banner{min-height:400px}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .stats-bar{gap:20px}
  .stat-item .num{font-size:1.5rem}
  .page-banner{min-height:200px}
  .page-banner .banner-text h1{font-size:1.6rem}
}
@media(max-width:480px){
  .hero-content h1{font-size:1.5rem}
  .hero-content p{font-size:.95rem}
  .container{padding:0 14px}
  .site-header .container{height:56px}
  .hero-banner{margin-top:56px;min-height:320px}
  .page-banner{margin-top:56px}
  .site-logo img{height:34px}
  .site-logo span{font-size:1.05rem}
}