/* ============================================
   兄妹乱伦 - 原创样式表
   品牌色系：兄妹乱伦粉 #FF6B8A / 深紫 #2D1B69 / 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","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;background:#0F0A1E;color:#E8E0F0;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{padding:70px 0}

/* === 头部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,10,30,.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}
.header-logo{display:flex;align-items:center;gap:10px}
.header-logo img{height:42px;width:auto}
.header-logo span{font-size:1.25rem;font-weight:700;color:#fff;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:8px;font-size:.9rem;color:#B8A9D4;font-weight:500;transition:all .3s}
.main-nav a:hover,.main-nav a.active{color:#fff;background:linear-gradient(135deg,rgba(255,107,138,.2),rgba(255,179,71,.15))}
.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}

/* === 搜索框 === */
.search-bar{background:linear-gradient(135deg,#1A1230,#2D1B69);padding:14px 0;border-bottom:1px solid rgba(255,107,138,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-wrapper{position:relative;width:100%;max-width:600px}
.search-wrapper input{width:100%;padding:12px 50px 12px 20px;border:2px solid rgba(255,107,138,.3);border-radius:30px;background:rgba(15,10,30,.6);color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-wrapper input::placeholder{color:#7B6B9E}
.search-wrapper input:focus{border-color:#FF6B8A}
.search-wrapper button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:38px;height:38px;border:none;border-radius:50%;background:linear-gradient(135deg,#FF6B8A,#FFB347);color:#fff;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .3s}
.search-wrapper button:hover{transform:translateY(-50%) scale(1.08)}

/* === Hero Banner === */
.8wsumb{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;margin-top:68px}
.27cg0m{position:absolute;inset:0;z-index:0}
.27cg0m img{width:100%;height:100%;object-fit:cover;filter:brightness(.55)}
.04bhgn{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,10,30,.3) 0%,rgba(15,10,30,.85) 100%);z-index:1}
.v919z{position:relative;z-index:2;text-align:center;width:100%;padding:60px 20px}
.v919z h1{font-size:2.8rem;margin-bottom:16px;background:linear-gradient(135deg,#FF6B8A,#FFB347);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.v919z p{font-size:1.15rem;color:#D4C8E8;max-width:680px;margin:0 auto 28px}
.zquf5xs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px}
.zquf5xs span{padding:6px 16px;border-radius:20px;font-size:.82rem;background:rgba(255,107,138,.15);color:#FF6B8A;border:1px solid rgba(255,107,138,.25)}
.btn-primary{display:inline-block;padding:14px 36px;border-radius:30px;background:linear-gradient(135deg,#FF6B8A,#E8527A);color:#fff;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 20px rgba(255,107,138,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(255,107,138,.5);color:#fff}
.btn-outline{display:inline-block;padding:12px 30px;border-radius:30px;border:2px solid #FF6B8A;color:#FF6B8A;font-size:.95rem;font-weight:500;transition:all .3s}
.btn-outline:hover{background:#FF6B8A;color:#fff}

/* === 区块标题 === */
.section-header{text-align:center;margin-bottom:45px}
.section-header h2{font-size:2rem;margin-bottom:12px;position:relative;display:inline-block}
.section-header h2::after{content:"";display:block;width:60px;height:3px;background:linear-gradient(90deg,#FF6B8A,#FFB347);margin:12px auto 0;border-radius:3px}
.section-header p{color:#9B8BBF;font-size:1rem;max-width:600px;margin:0 auto}

/* === 视频卡片网格 === */
.ws4xkyfm{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.etlhi2{position:relative;border-radius:14px;overflow:hidden;background:#1A1230;transition:transform .35s,box-shadow .35s;cursor:pointer}
.etlhi2:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(255,107,138,.2)}
.etlhi2 .thumb{position:relative;aspect-ratio:3/4;overflow:hidden}
.etlhi2 .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.etlhi2:hover .thumb img{transform:scale(1.06)}
.etlhi2 .y3hdm2{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:rgba(255,107,138,.85);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .35s;box-shadow:0 4px 20px rgba(255,107,138,.4)}
.etlhi2:hover .y3hdm2{opacity:1}
.y3hdm2::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.etlhi2 .cn9q3{padding:14px 16px}
.etlhi2 .cn9q3 h4{font-size:.95rem;margin-bottom:6px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.etlhi2 .lwhyhr{display:flex;align-items:center;gap:12px;font-size:.78rem;color:#8B7BAE}
.etlhi2 .lwhyhr span{display:flex;align-items:center;gap:4px}
.etlhi2 .duration{position:absolute;bottom:10px;right:10px;padding:3px 8px;border-radius:4px;background:rgba(0,0,0,.7);color:#fff;font-size:.75rem}

/* === 服务模块 === */
.p5491bb{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.v9tnr{background:linear-gradient(145deg,#1A1230,#231845);border-radius:16px;padding:32px 24px;text-align:center;border:1px solid rgba(255,107,138,.1);transition:all .35s}
.v9tnr:hover{border-color:rgba(255,107,138,.35);transform:translateY(-4px);box-shadow:0 8px 30px rgba(45,27,105,.4)}
.rl9olp{width:64px;height:64px;margin:0 auto 18px;border-radius:16px;background:linear-gradient(135deg,rgba(255,107,138,.2),rgba(255,179,71,.15));display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.v9tnr h4{font-size:1.1rem;margin-bottom:10px;color:#fff}
.v9tnr p{font-size:.88rem;color:#9B8BBF;line-height:1.6}

/* === AI赋能 === */
.nsjs7{background:linear-gradient(180deg,rgba(45,27,105,.3),rgba(15,10,30,1))}
.j1k0wn{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.j1k0wn img{border-radius:16px;box-shadow:0 8px 30px rgba(0,0,0,.4)}
.y23cxl{display:flex;flex-direction:column;gap:20px}
.24xd58p4{display:flex;gap:16px;padding:18px;border-radius:12px;background:rgba(26,18,48,.6);border:1px solid rgba(255,107,138,.08);transition:all .3s}
.24xd58p4:hover{border-color:rgba(255,107,138,.25);background:rgba(26,18,48,.9)}
.24xd58p4 .icon{flex-shrink:0;width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#FF6B8A,#FFB347);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff}
.24xd58p4 h5{font-size:1rem;color:#fff;margin-bottom:4px}
.24xd58p4 p{font-size:.85rem;color:#9B8BBF}

/* === 社区模块 === */
.5unep8{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.hag6zki{border-radius:14px;overflow:hidden;background:#1A1230;border:1px solid rgba(255,107,138,.08);transition:all .35s}
.hag6zki:hover{border-color:rgba(255,107,138,.3);transform:translateY(-4px)}
.hag6zki img{width:100%;height:200px;object-fit:cover}
.hag6zki .card-body{padding:20px}
.hag6zki h4{font-size:1.05rem;margin-bottom:8px;color:#fff}
.hag6zki p{font-size:.87rem;color:#9B8BBF;margin-bottom:14px}
.hag6zki .tag{display:inline-block;padding:4px 12px;border-radius:12px;font-size:.75rem;background:rgba(255,179,71,.15);color:#FFB347}

/* === 专家展示 === */
.27iyqka7{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.drv02x{background:#1A1230;border-radius:16px;padding:28px 20px;text-align:center;border:1px solid rgba(255,107,138,.08);transition:all .35s}
.drv02x:hover{border-color:rgba(255,107,138,.3);transform:translateY(-4px)}
.drv02x .avatar{width:90px;height:90px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid rgba(255,107,138,.3)}
.drv02x .avatar img{width:100%;height:100%;object-fit:cover}
.drv02x h4{font-size:1.05rem;color:#fff;margin-bottom:4px}
.drv02x .title{font-size:.82rem;color:#FF6B8A;margin-bottom:10px}
.drv02x p{font-size:.82rem;color:#9B8BBF;margin-bottom:14px;line-height:1.5}
.drv02x .expert-btns{display:flex;gap:8px;justify-content:center}
.drv02x .expert-btns a{padding:6px 14px;border-radius:16px;font-size:.78rem;border:1px solid rgba(255,107,138,.3);color:#FF6B8A;transition:all .3s}
.drv02x .expert-btns a:hover{background:#FF6B8A;color:#fff}

/* === 合作品牌 === */
.ap3l7c{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.ap3l7c .q8soe{width:140px;height:70px;background:rgba(26,18,48,.8);border-radius:12px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,107,138,.1);transition:all .3s;padding:12px}
.ap3l7c .q8soe:hover{border-color:rgba(255,107,138,.3);transform:scale(1.05)}
.ap3l7c .q8soe span{color:#9B8BBF;font-size:.85rem;font-weight:600}

/* === 用户评论 === */
.vdpy5{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.2wcgh9m{background:#1A1230;border-radius:14px;padding:24px;border:1px solid rgba(255,107,138,.08);transition:all .3s}
.2wcgh9m:hover{border-color:rgba(255,107,138,.25)}
.2wcgh9m .stars{color:#FFB347;font-size:.9rem;margin-bottom:10px;letter-spacing:2px}
.2wcgh9m p{font-size:.9rem;color:#D4C8E8;line-height:1.7;margin-bottom:14px;font-style:italic}
.2wcgh9m .reviewer{display:flex;align-items:center;gap:10px}
.2wcgh9m .reviewer-avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#FF6B8A,#FFB347);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem;font-weight:700}
.2wcgh9m .reviewer-info .name{font-size:.88rem;color:#fff;font-weight:600}
.2wcgh9m .reviewer-info .date{font-size:.75rem;color:#7B6B9E}

/* === FAQ === */
.k1an7{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.7n1m07{background:#1A1230;border-radius:12px;border:1px solid rgba(255,107,138,.08);overflow:hidden;transition:border-color .3s}
.7n1m07:hover{border-color:rgba(255,107,138,.2)}
.7n1m07 .ahkppsh{padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:.95rem;color:#fff;font-weight:600;transition:background .3s}
.7n1m07 .ahkppsh:hover{background:rgba(255,107,138,.05)}
.7n1m07 .ahkppsh .arrow{transition:transform .3s;color:#FF6B8A;font-size:1.1rem}
.faq-item.open .ahkppsh .arrow{transform:rotate(180deg)}
.7n1m07 .ijmu39{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s;padding:0 22px}
.faq-item.open .ijmu39{max-height:300px;padding:0 22px 18px}
.7n1m07 .ijmu39 p{font-size:.88rem;color:#9B8BBF;line-height:1.7}

/* === 联系我们 === */
.o3l9wyj{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.q6onh{display:flex;flex-direction:column;gap:18px}
.i7xnfiz3{display:flex;gap:14px;align-items:flex-start}
.i7xnfiz3 .icon{flex-shrink:0;width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,rgba(255,107,138,.2),rgba(255,179,71,.15));display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:#FF6B8A}
.i7xnfiz3 h5{font-size:.92rem;color:#fff;margin-bottom:2px}
.i7xnfiz3 p{font-size:.85rem;color:#9B8BBF}
.3iw34pig{display:flex;gap:30px;justify-content:center;align-items:flex-start}
.ubnf2{text-align:center}
.ubnf2 img{width:160px;height:160px;border-radius:12px;border:2px solid rgba(255,107,138,.2);margin-bottom:8px}
.ubnf2 p{font-size:.82rem;color:#9B8BBF}

/* === 社交分享 === */
.zvz7teu{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:20px}
.r8vwc{display:flex;align-items:center;gap:6px;padding:10px 20px;border-radius:24px;font-size:.85rem;font-weight:500;border:1px solid rgba(255,107,138,.2);color:#D4C8E8;transition:all .3s;cursor:pointer;background:transparent}
.r8vwc:hover{background:rgba(255,107,138,.15);border-color:#FF6B8A;color:#fff}

/* === 页脚 === */
.site-footer{background:#0A0618;border-top:1px solid rgba(255,107,138,.1);padding:50px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:40px;border-bottom:1px solid rgba(255,107,138,.08)}
.4ev1rta .h7aqh{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.4ev1rta .h7aqh img{height:36px}
.4ev1rta .h7aqh span{font-size:1.1rem;font-weight:700;color:#fff}
.4ev1rta p{font-size:.85rem;color:#7B6B9E;line-height:1.6;margin-bottom:16px}
.q4xci h5{font-size:.95rem;color:#fff;margin-bottom:16px;position:relative;padding-bottom:8px}
.q4xci h5::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:#FF6B8A;border-radius:2px}
.q4xci a{display:block;font-size:.85rem;color:#7B6B9E;padding:4px 0;transition:color .3s}
.q4xci a:hover{color:#FF6B8A}
.footer-bottom{padding:20px 0;text-align:center}
.footer-bottom p{font-size:.82rem;color:#5A4D75}
.footer-bottom .oor9q{margin-top:6px;font-size:.78rem;color:#4A3D65}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#7B6B9E}
.breadcrumb a{color:#9B8BBF}
.breadcrumb a:hover{color:#FF6B8A}
.breadcrumb span{margin:0 8px;color:#5A4D75}

/* === 内页通用 === */
.page-hero{padding:100px 0 50px;text-align:center;background:linear-gradient(180deg,rgba(45,27,105,.4),rgba(15,10,30,1))}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-hero p{color:#9B8BBF;font-size:1rem}
.content-section{padding:50px 0}
.content-section h2{font-size:1.6rem;margin-bottom:18px}
.content-section h3{font-size:1.25rem;margin-bottom:12px;color:#FF6B8A}
.content-section p{font-size:.92rem;color:#B8A9D4;line-height:1.8;margin-bottom:16px}
.content-section article{background:#1A1230;border-radius:14px;padding:30px;margin-bottom:24px;border:1px solid rgba(255,107,138,.08)}

/* === How-To 指南 === */
.rn7kftcp{display:flex;flex-direction:column;gap:18px;max-width:700px;margin:0 auto}
.ll8jqgp{display:flex;gap:18px;align-items:flex-start;padding:20px;background:#1A1230;border-radius:12px;border:1px solid rgba(255,107,138,.08)}
.ll8jqgp .1dyz09{flex-shrink:0;width:40px;height:40px;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}
.ll8jqgp h5{font-size:.95rem;color:#fff;margin-bottom:4px}
.ll8jqgp p{font-size:.85rem;color:#9B8BBF}

/* === 响应式 === */
@media(max-width:1024px){
  .ws4xkyfm{grid-template-columns:repeat(3,1fr)}
  .27iyqka7{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .j1k0wn{grid-template-columns:1fr}
  .o3l9wyj{grid-template-columns:1fr}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:68px;left:0;width:100%;background:rgba(15,10,30,.98);flex-direction:column;padding:20px;gap:4px;transform:translateY(-120%);transition:transform .35s;border-bottom:1px solid rgba(255,107,138,.15)}
  .main-nav.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .ws4xkyfm{grid-template-columns:repeat(2,1fr)}
  .p5491bb{grid-template-columns:1fr}
  .5unep8{grid-template-columns:1fr}
  .27iyqka7{grid-template-columns:1fr}
  .vdpy5{grid-template-columns:1fr}
  .v919z h1{font-size:1.8rem}
  .section-header h2{font-size:1.5rem}
  .footer-top{grid-template-columns:1fr}
  .3iw34pig{flex-direction:column;align-items:center}
}
@media(max-width:480px){
  .ws4xkyfm{grid-template-columns:1fr 1fr;gap:12px}
  .v919z h1{font-size:1.5rem}
  .container{padding:0 14px}
  .section-padding{padding:45px 0}
}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s,transform .6s}
.fade-in.visible{opacity:1;transform:translateY(0)}

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

/* === 视频标签 === */
.e5gini{position:absolute;top:10px;left:10px;padding:4px 10px;border-radius:6px;font-size:.72rem;font-weight:600;background:linear-gradient(135deg,#FF6B8A,#E8527A);color:#fff;z-index:2}

/* === 统计数字 === */
.vhncw{background:linear-gradient(135deg,#2D1B69,#1A1230);padding:40px 0;border-top:1px solid rgba(255,107,138,.08);border-bottom:1px solid rgba(255,107,138,.08)}
.z8nysdj{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.n3w3ecp .num{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg,#FF6B8A,#FFB347);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.n3w3ecp .label{font-size:.85rem;color:#9B8BBF;margin-top:4px}

@media(max-width:768px){
  .z8nysdj{grid-template-columns:repeat(2,1fr);gap:16px}
  .n3w3ecp .num{font-size:1.6rem}
}

/* === 专家资质标签 === */
.dez9x{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:8px}
.ql424j{display:inline-block;padding:3px 10px;border-radius:10px;font-size:.72rem;background:rgba(255,179,71,.12);color:#FFB347;border:1px solid rgba(255,179,71,.2)}

/* === 视频卡片描述 === */
.zue4h5t{font-size:.82rem;color:#9B8BBF;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* === HTML5 Video 在卡片中 === */
.etlhi2 .thumb video{width:100%;height:100%;object-fit:cover;position:absolute;top:0;left:0}
.etlhi2 .thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#0F0A1E}

/* === 视频卡片链接 === */
.etlhi2 .cn9q3 h4 a{color:#fff;transition:color .3s}
.etlhi2 .cn9q3 h4 a:hover{color:#FF6B8A}