/* ============================================
   人兽 - 原创样式表
   品牌色系：蜜桃粉 #FF6B8A | 深夜蓝 #1A1A2E | 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','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:#0D0D1A;color:#E8E8F0;line-height:1.7;overflow-x:hidden}
a{color:#FF6B8A;text-decoration:none;transition:color .3s}
a:hover{color:#FFB347}
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:#fff}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#fff;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#FF6B8A,#FFB347);margin:12px auto 0;border-radius:2px}
.section-title p{color:#a0a0b8;font-size:1rem;margin-top:8px}

/* === 头部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(13,13,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,107,138,.15);transition:all .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:42px;width:auto}
.logo span{font-size:1.25rem;font-weight:700;color:#fff;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{padding:8px 16px;font-size:.95rem;color:#c8c8d8;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#FF6B8A}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:2px;background:#FF6B8A;transition:all .3s;transform:translateX(-50%)}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;transition:all .3s}

/* === 搜索栏 === */
.search-bar{background:rgba(30,30,53,.8);border-bottom:1px solid rgba(255,107,138,.1);padding:12px 0;margin-top:68px}
.search-bar .container{display:flex;justify-content:center}
.search-wrap{position:relative;width:100%;max-width:560px}
.search-wrap input{width:100%;padding:10px 48px 10px 20px;border-radius:25px;border:1px solid rgba(255,107,138,.3);background:rgba(13,13,26,.6);color:#E8E8F0;font-size:.95rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#FF6B8A}
.search-wrap input::placeholder{color:#666}
.search-wrap button{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#FF6B8A,#FFB347);border:none;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;transition:opacity .3s}
.search-wrap button:hover{opacity:.85}

/* === Hero Banner === */
.hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;background:#0D0D1A}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,13,26,.3) 0%,rgba(13,13,26,.85) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;width:100%;padding:80px 20px 60px}
.hero-content h1{font-size:2.8rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero-content h1 .brand{color:#FF6B8A}
.hero-content p{font-size:1.15rem;color:#c8c8d8;max-width:680px;margin:0 auto 28px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px}
.hero-tags span{background:rgba(255,107,138,.15);color:#FF6B8A;padding:5px 16px;border-radius:20px;font-size:.85rem;border:1px solid rgba(255,107,138,.25)}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;background:linear-gradient(135deg,#FF6B8A,#e8527a);color:#fff;border-radius:28px;font-size:1rem;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,138,.4);color:#fff}
.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;border:2px solid rgba(255,107,138,.5);color:#FF6B8A;border-radius:28px;font-size:1rem;font-weight:600;transition:all .3s;background:transparent;cursor:pointer}
.btn-outline:hover{background:rgba(255,107,138,.1);border-color:#FF6B8A;color:#FF6B8A}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#1E1E35;transition:all .4s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(255,107,138,.2)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.35)}
.video-card:hover .play-btn{opacity:1}
.play-btn i{width:56px;height:56px;background:rgba(255,107,138,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff;box-shadow:0 4px 15px rgba(255,107,138,.5)}
.play-btn i::before{content:'';display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-info{padding:14px 16px}
.video-info h3{font-size:.95rem;color:#fff;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;gap:12px;font-size:.8rem;color:#888}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{position:absolute;top:10px;left:10px;background:rgba(255,107,138,.85);color:#fff;padding:3px 10px;border-radius:4px;font-size:.75rem;z-index:2}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;z-index:2}

/* === 服务模块 === */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:linear-gradient(145deg,#1E1E35,#252545);border-radius:16px;padding:32px 24px;text-align:center;transition:all .4s;border:1px solid rgba(255,107,138,.08)}
.service-card:hover{transform:translateY(-5px);border-color:rgba(255,107,138,.3);box-shadow:0 10px 30px rgba(255,107,138,.12)}
.service-icon{width:64px;height:64px;margin:0 auto 18px;background:linear-gradient(135deg,rgba(255,107,138,.2),rgba(255,179,71,.2));border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.service-card h3{font-size:1.1rem;margin-bottom:10px;color:#fff}
.service-card p{font-size:.9rem;color:#a0a0b8;line-height:1.6}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#1E1E35;border-radius:16px;overflow:hidden;text-align:center;transition:all .4s;border:1px solid rgba(255,107,138,.08)}
.expert-card:hover{transform:translateY(-5px);border-color:rgba(255,107,138,.25)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:24px auto 14px;overflow:hidden;border:3px solid rgba(255,107,138,.3)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:1rem;color:#fff;margin-bottom:4px}
.expert-card .role{color:#FF6B8A;font-size:.85rem;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:#a0a0b8;padding:0 16px;line-height:1.6}
.expert-links{display:flex;justify-content:center;gap:10px;padding:16px}
.expert-links a{padding:6px 16px;border-radius:20px;font-size:.8rem;transition:all .3s}
.expert-links .btn-sm-primary{background:linear-gradient(135deg,#FF6B8A,#e8527a);color:#fff}
.expert-links .btn-sm-outline{border:1px solid rgba(255,107,138,.4);color:#FF6B8A}
.expert-links .btn-sm-outline:hover{background:rgba(255,107,138,.1)}

/* === 品牌墙 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{background:rgba(30,30,53,.6);padding:18px 28px;border-radius:12px;border:1px solid rgba(255,107,138,.1);font-size:1rem;color:#888;font-weight:600;transition:all .3s;min-width:140px;text-align:center}
.brand-wall .brand-item:hover{border-color:rgba(255,107,138,.3);color:#FF6B8A}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#1E1E35;border-radius:12px;margin-bottom:12px;overflow:hidden;border:1px solid rgba(255,107,138,.08);transition:border-color .3s}
.faq-item:hover{border-color:rgba(255,107,138,.2)}
.faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#fff;font-size:.95rem;transition:color .3s}
.faq-q:hover{color:#FF6B8A}
.faq-q .arrow{transition:transform .3s;color:#FF6B8A;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}
.faq-a p{color:#a0a0b8;font-size:.9rem;line-height:1.7}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#1E1E35;border-radius:12px;padding:24px;border:1px solid rgba(255,107,138,.08);transition:all .3s}
.review-card:hover{border-color:rgba(255,107,138,.2)}
.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,#FF6B8A,#FFB347);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.review-name{font-weight:600;color:#fff;font-size:.95rem}
.review-date{font-size:.8rem;color:#666}
.review-stars{color:#FFB347;margin-bottom:8px;font-size:.9rem;letter-spacing:2px}
.review-text{color:#a0a0b8;font-size:.9rem;line-height:1.7}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#1E1E35;border-radius:16px;padding:28px;text-align:center;border:1px solid rgba(255,107,138,.08)}
.contact-card h4{color:#fff;margin-bottom:14px;font-size:1.05rem}
.contact-card p{color:#a0a0b8;font-size:.9rem;line-height:1.8}
.contact-card .highlight{color:#FF6B8A;font-weight:600}
.qr-img{width:160px;height:160px;margin:12px auto;border-radius:8px;overflow:hidden}
.qr-img img{width:100%;height:100%;object-fit:cover}

/* === 社交分享 === */
.share-bar{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:25px;font-size:.9rem;color:#fff;transition:all .3s;border:1px solid rgba(255,255,255,.15)}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-btn.wechat{background:rgba(7,193,96,.2);border-color:rgba(7,193,96,.4)}
.share-btn.weibo{background:rgba(230,73,45,.2);border-color:rgba(230,73,45,.4)}
.share-btn.douyin{background:rgba(0,0,0,.3);border-color:rgba(255,255,255,.2)}
.share-btn.bilibili{background:rgba(0,174,236,.2);border-color:rgba(0,174,236,.4)}

/* === 页脚 === */
.site-footer{background:#0a0a16;border-top:1px solid rgba(255,107,138,.1);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{color:#888;font-size:.9rem;line-height:1.7}
.footer-col h5{color:#fff;font-size:1rem;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h5::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:#FF6B8A}
.footer-col a{display:block;color:#888;font-size:.9rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B8A}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:20px 0;text-align:center}
.footer-bottom p{color:#666;font-size:.85rem}
.footer-qr{display:flex;gap:20px;justify-content:center;margin-top:20px}
.footer-qr-item{text-align:center}
.footer-qr-item img{width:100px;height:100px;border-radius:8px;margin-bottom:6px}
.footer-qr-item span{font-size:.8rem;color:#888}

/* === 面包屑 === */
.breadcrumb{padding:15px 0;font-size:.85rem;color:#888}
.breadcrumb a{color:#FF6B8A}
.breadcrumb span{margin:0 8px;color:#555}

/* === 内页通用 === */
.page-hero{padding:100px 0 40px;text-align:center;background:linear-gradient(180deg,rgba(255,107,138,.08),transparent)}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-hero p{color:#a0a0b8;font-size:1rem}

/* === How-To 指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.howto-step{background:#1E1E35;border-radius:12px;padding:24px;text-align:center;position:relative}
.step-num{width:40px;height:40px;background:linear-gradient(135deg,#FF6B8A,#FFB347);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;margin:0 auto 14px;font-size:1.1rem}
.howto-step h4{color:#fff;margin-bottom:8px;font-size:.95rem}
.howto-step p{color:#a0a0b8;font-size:.85rem;line-height:1.6}

/* === 社区功能 === */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.community-card{background:linear-gradient(145deg,#1E1E35,#252545);border-radius:16px;padding:28px;text-align:center;border:1px solid rgba(255,107,138,.08);transition:all .4s}
.community-card:hover{border-color:rgba(255,107,138,.25);transform:translateY(-4px)}
.community-icon{font-size:2.2rem;margin-bottom:14px}
.community-card h4{color:#fff;margin-bottom:8px}
.community-card p{color:#a0a0b8;font-size:.88rem;line-height:1.6}

/* === AI赋能 === */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(145deg,rgba(255,107,138,.05),rgba(255,179,71,.05));border:1px solid rgba(255,107,138,.12);border-radius:16px;padding:30px;text-align:center;transition:all .4s}
.ai-card:hover{border-color:rgba(255,107,138,.3);transform:translateY(-4px);box-shadow:0 8px 25px rgba(255,107,138,.1)}
.ai-icon{font-size:2.5rem;margin-bottom:16px}
.ai-card h4{color:#fff;margin-bottom:10px;font-size:1.05rem}
.ai-card p{color:#a0a0b8;font-size:.9rem;line-height:1.6}

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

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate{animation:fadeInUp .6s ease forwards;opacity:0}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .site-header .container{padding:0 16px}
  .main-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(13,13,26,.98);flex-direction:column;padding:20px;transform:translateY(-120%);transition:transform .3s;gap:0}
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.05);width:100%}
  .nav-toggle{display:flex}
  .hero-content h1{font-size:1.8rem}
  .hero-content p{font-size:1rem}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .service-grid,.community-grid,.ai-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}
  .section{padding:40px 0}
  .section-title h2{font-size:1.5rem}
  .brand-wall .brand-item{min-width:100px;padding:12px 16px;font-size:.85rem}
  .howto-steps{grid-template-columns:1fr}
  .hero{min-height:420px}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-content h1{font-size:1.5rem}
  .hero-btns{flex-direction:column;align-items:center}
}