/* ============================================
   母狗 - 原创样式表 v1.0
   配色：深紫底 #0d0a1f + 霓虹青 #00e5ff + 品红 #ff2d78 + 金色 #ffd700
   字体：系统中文字体栈
   ============================================ */

/* === 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",sans-serif;background:#0d0a1f;color:#e8e0f0;line-height:1.7;overflow-x:hidden}
a{color:#00e5ff;text-decoration:none;transition:color .3s}
a:hover{color:#ff2d78}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 干扰标签隐藏 === */
.cg-n{position:absolute;left:-9999px;top:-9999px;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-1}

/* === 顶部导航 === */
.site-header{background:linear-gradient(180deg,#0d0a1f 0%,rgba(13,10,31,0.95) 100%);position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(0,229,255,0.15);backdrop-filter:blur(12px)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:42px;width:auto;border-radius:6px}
.nav-logo span{font-size:1.4rem;font-weight:700;background:linear-gradient(135deg,#00e5ff,#ff2d78);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-menu{display:flex;gap:24px;align-items:center}
.nav-menu a{font-size:.95rem;color:#c8c0d8;font-weight:500;padding:6px 0;position:relative}
.nav-menu a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,#00e5ff,#ff2d78);transition:width .3s}
.nav-menu a:hover{color:#fff}
.nav-menu a:hover::after{width:100%}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.mobile-toggle span{width:24px;height:2px;background:#00e5ff;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.search-bar{background:rgba(0,229,255,0.05);border-bottom:1px solid rgba(0,229,255,0.1);padding:14px 0}
.search-wrap{max-width:600px;margin:0 auto;display:flex;gap:10px;padding:0 20px}
.search-wrap input{flex:1;background:rgba(255,255,255,0.06);border:1px solid rgba(0,229,255,0.25);border-radius:25px;padding:10px 20px;color:#e8e0f0;font-size:.9rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#00e5ff}
.search-wrap input::placeholder{color:rgba(200,192,216,0.5)}
.search-wrap button{background:linear-gradient(135deg,#00e5ff,#7b2ff7);border:none;border-radius:25px;padding:10px 24px;color:#fff;font-size:.9rem;cursor:pointer;transition:transform .2s,box-shadow .3s}
.search-wrap button:hover{transform:scale(1.05);box-shadow:0 0 20px rgba(0,229,255,0.4)}

/* === Hero横幅 === */
.hero{position:relative;overflow:hidden;padding:60px 0;text-align:center;background:linear-gradient(135deg,#0d0a1f 0%,#1a0e3e 50%,#0d0a1f 100%)}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 40%,rgba(0,229,255,0.08) 0%,transparent 50%),radial-gradient(circle at 70% 60%,rgba(255,45,120,0.06) 0%,transparent 50%);animation:heroGlow 8s ease-in-out infinite alternate}
@keyframes heroGlow{0%{transform:translate(0,0)}100%{transform:translate(-3%,-3%)}}
.hero-content{position:relative;z-index:2}
.hero h1{font-size:2.6rem;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,#00e5ff 0%,#ff2d78 50%,#ffd700 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:none}
.hero p{font-size:1.15rem;color:rgba(232,224,240,0.8);max-width:700px;margin:0 auto 28px}
.hero-img{max-width:900px;margin:0 auto;border-radius:16px;overflow:hidden;box-shadow:0 8px 40px rgba(0,229,255,0.15)}
.hero-img img{width:100%;transition:transform .5s}
.hero-img:hover img{transform:scale(1.03)}

/* === 面包屑 === */
.breadcrumb{padding:12px 0;font-size:.85rem;color:rgba(200,192,216,0.6)}
.breadcrumb a{color:#00e5ff}
.breadcrumb span{margin:0 6px;color:rgba(200,192,216,0.3)}

/* === 通用区块 === */
.section{padding:50px 0}
.section-title{text-align:center;margin-bottom:36px}
.section-title h2{font-size:1.8rem;font-weight:700;color:#fff;margin-bottom:8px}
.section-title h2 em{font-style:normal;color:#00e5ff}
.section-title p{color:rgba(200,192,216,0.7);font-size:.95rem}
.section-alt{background:rgba(0,229,255,0.02)}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:rgba(255,255,255,0.04);border-radius:14px;overflow:hidden;border:1px solid rgba(0,229,255,0.1);transition:transform .3s,box-shadow .3s,border-color .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(0,229,255,0.15);border-color:rgba(0,229,255,0.3)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1a0e3e}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.video-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);width:56px;height:56px;background:rgba(0,229,255,0.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s;box-shadow:0 0 30px rgba(0,229,255,0.5)}
.video-play-btn::after{content:'';width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-card:hover .video-play-btn{opacity:1;transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}
.video-info{padding:14px 16px}
.video-info h3{font-size:1rem;font-weight:600;color:#fff;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;font-size:.8rem;color:rgba(200,192,216,0.5)}
.video-meta span{display:flex;align-items:center;gap:4px}

/* === H5视频播放器覆盖层 === */
.video-player-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.85);display:none;flex-direction:column;justify-content:flex-end;z-index:10}
.video-card:hover .video-player-overlay{display:flex}
.player-controls{padding:10px 14px;display:flex;align-items:center;gap:10px}
.player-progress{flex:1;height:3px;background:rgba(255,255,255,0.2);border-radius:3px;overflow:hidden}
.player-progress-bar{height:100%;width:0;background:linear-gradient(90deg,#00e5ff,#ff2d78);border-radius:3px;transition:width .1s linear}
.player-time{font-size:.7rem;color:rgba(255,255,255,0.7);min-width:70px;text-align:center}
.player-quality{font-size:.65rem;background:rgba(0,229,255,0.2);color:#00e5ff;padding:2px 6px;border-radius:3px}
.player-fullscreen{color:rgba(255,255,255,0.6);cursor:pointer;font-size:.8rem}

/* === 分类标签 === */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:30px}
.tag-item{background:rgba(0,229,255,0.08);border:1px solid rgba(0,229,255,0.2);border-radius:20px;padding:6px 18px;font-size:.85rem;color:#00e5ff;cursor:pointer;transition:all .3s}
.tag-item:hover,.tag-item.active{background:linear-gradient(135deg,#00e5ff,#7b2ff7);color:#fff;border-color:transparent}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:rgba(255,255,255,0.04);border-radius:14px;padding:28px 20px;text-align:center;border:1px solid rgba(0,229,255,0.1);transition:all .3s}
.expert-card:hover{border-color:rgba(255,45,120,0.3);box-shadow:0 8px 30px rgba(255,45,120,0.1)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid rgba(0,229,255,0.3)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1.1rem;color:#fff;margin-bottom:4px}
.expert-card .role{color:#00e5ff;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:rgba(200,192,216,0.6);margin-bottom:14px}
.expert-btns{display:flex;gap:10px;justify-content:center}
.btn-primary{background:linear-gradient(135deg,#00e5ff,#7b2ff7);color:#fff;border:none;padding:8px 20px;border-radius:20px;font-size:.85rem;cursor:pointer;transition:all .3s}
.btn-primary:hover{transform:scale(1.05);box-shadow:0 4px 16px rgba(0,229,255,0.3)}
.btn-outline{background:transparent;color:#00e5ff;border:1px solid rgba(0,229,255,0.3);padding:8px 20px;border-radius:20px;font-size:.85rem;cursor:pointer;transition:all .3s}
.btn-outline:hover{background:rgba(0,229,255,0.1);border-color:#00e5ff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:rgba(255,255,255,0.03);border:1px solid rgba(0,229,255,0.1);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#fff;transition:background .3s}
.faq-q:hover{background:rgba(0,229,255,0.05)}
.faq-q::after{content:'+';font-size:1.3rem;color:#00e5ff;transition:transform .3s}
.faq-item.active .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .4s;color:rgba(200,192,216,0.7);font-size:.9rem;line-height:1.8}
.faq-item.active .faq-a{padding:0 20px 16px;max-height:500px}

/* === 用户评价 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.review-card{background:rgba(255,255,255,0.03);border:1px solid rgba(0,229,255,0.08);border-radius:14px;padding:24px;position:relative}
.review-card::before{content:'\201C';position:absolute;top:12px;left:16px;font-size:3rem;color:rgba(0,229,255,0.15);font-family:serif;line-height:1}
.review-stars{color:#ffd700;font-size:.9rem;margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:.9rem;color:rgba(232,224,240,0.8);margin-bottom:14px;line-height:1.7;padding-top:8px}
.review-author{display:flex;align-items:center;gap:10px}
.review-author-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#00e5ff,#7b2ff7);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem;font-weight:700}
.review-author-info{font-size:.8rem}
.review-author-info strong{color:#fff;display:block}
.review-author-info span{color:rgba(200,192,216,0.5)}

/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.brand-wall-item{background:rgba(255,255,255,0.05);border-radius:12px;padding:16px 28px;border:1px solid rgba(0,229,255,0.08);font-size:1rem;color:rgba(200,192,216,0.6);transition:all .3s;font-weight:600}
.brand-wall-item:hover{border-color:rgba(0,229,255,0.3);color:#00e5ff;background:rgba(0,229,255,0.05)}

/* === How-To指南 === */
.howto-steps{max-width:700px;margin:0 auto}
.howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.step-num{width:44px;height:44px;min-width:44px;border-radius:50%;background:linear-gradient(135deg,#00e5ff,#7b2ff7);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.step-content h3{font-size:1rem;color:#fff;margin-bottom:4px}
.step-content p{font-size:.88rem;color:rgba(200,192,216,0.7)}

/* === 联系信息 === */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.contact-card{background:rgba(255,255,255,0.04);border-radius:14px;padding:24px;text-align:center;border:1px solid rgba(0,229,255,0.1)}
.contact-card h3{color:#00e5ff;font-size:1rem;margin-bottom:10px}
.contact-card p{font-size:.88rem;color:rgba(200,192,216,0.7);line-height:1.7}
.contact-card img{max-width:140px;margin:12px auto 0;border-radius:8px}

/* === 社交分享 === */
.share-bar{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.06);border:1px solid rgba(0,229,255,0.15);border-radius:20px;padding:8px 18px;font-size:.85rem;color:#c8c0d8;cursor:pointer;transition:all .3s}
.share-btn:hover{background:rgba(0,229,255,0.1);border-color:#00e5ff;color:#fff}

/* === 页脚 === */
.site-footer{background:linear-gradient(180deg,rgba(13,10,31,0.95),#080515);border-top:1px solid rgba(0,229,255,0.1);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:14px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:linear-gradient(90deg,#00e5ff,#ff2d78)}
.footer-col a{display:block;color:rgba(200,192,216,0.6);font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#00e5ff}
.footer-col p{font-size:.85rem;color:rgba(200,192,216,0.5);line-height:1.7}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(0,229,255,0.08);font-size:.82rem;color:rgba(200,192,216,0.4)}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:36px;border-radius:6px}
.footer-logo span{font-size:1.2rem;font-weight:700;color:#fff}

/* === 回到顶部 === */
.back-to-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:linear-gradient(135deg,#00e5ff,#7b2ff7);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;z-index:999;box-shadow:0 4px 16px rgba(0,229,255,0.3)}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:scale(1.1)}

/* === 内页通用 === */
.page-hero{padding:40px 0;text-align:center;background:linear-gradient(135deg,#0d0a1f,#1a0e3e)}
.page-hero h1{font-size:2rem;font-weight:700;color:#fff;margin-bottom:8px}
.page-hero p{color:rgba(200,192,216,0.7);font-size:1rem}
.page-content{padding:40px 0}

/* === 响应式 === */
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:100%;left:0;width:100%;background:#0d0a1f;flex-direction:column;padding:20px;gap:16px;border-bottom:1px solid rgba(0,229,255,0.15)}
  .nav-menu.active{display:flex}
  .mobile-toggle{display:flex}
  .hero h1{font-size:1.8rem}
  .hero p{font-size:1rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .search-wrap{flex-direction:column}
  .search-wrap button{width:100%}
  .section{padding:35px 0}
  .section-title h2{font-size:1.4rem}
}
@media(max-width:480px){
  .nav-logo span{font-size:1.1rem}
  .hero{padding:40px 0}
  .hero h1{font-size:1.5rem}
  .video-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}