*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#faf6f8 0%,#eef6f8 100%);color:#4a4050;line-height:1.65;min-height:100vh}
img{max-width:100%;height:auto;display:block}
a{color:#7a9aa8;text-decoration:none}
a:hover{text-decoration:underline}
ul{list-style:none}
.container{width:min(1080px,92vw);margin:0 auto}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,252,254,.92);border-bottom:1px solid rgba(184,224,232,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.75rem 0;gap:1rem}
.logo{font-weight:800;font-size:1.05rem;color:#4a4050;letter-spacing:.04em}
.logo span{background:linear-gradient(135deg,#d4a8b8,#a8d8e8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-main{display:flex;flex-wrap:wrap;gap:.35rem 1.15rem;font-size:.88rem}
.nav-main a{color:#8a7888;font-weight:600}
.nav-main a.active,.nav-main a:hover{color:#7a9aa8;text-decoration:none}
.btn-nav{display:inline-block;background:linear-gradient(135deg,#e8c8d4,#b8e0e8);color:#4a4050!important;padding:.45rem 1.15rem;font-weight:700;font-size:.85rem;border-radius:999px;text-decoration:none!important}
.btn-nav:hover{opacity:.92}

.section{padding:3.5rem 0}
.section-title{font-size:clamp(1.28rem,3vw,1.6rem);font-weight:800;margin-bottom:.45rem;color:#4a4050;text-align:center}
.section-lead{color:#8a7888;font-size:.92rem;margin-bottom:1.85rem;max-width:620px;margin-left:auto;margin-right:auto;text-align:center}

.footer{background:linear-gradient(180deg,#4a4050,#3a3040);color:#d8c8d0;padding:2.5rem 0 0;font-size:.86rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer h3{font-size:.92rem;color:#e8c8d4;margin-bottom:.7rem;font-weight:700}
.footer a{color:#a898a8}
.footer-links{display:flex;flex-wrap:wrap;gap:.4rem 1rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1rem;text-align:center;color:#887878;font-size:.78rem}

.faq-list{display:flex;flex-direction:column;gap:.55rem;max-width:720px;margin:0 auto}
.faq-item{background:#fff;border-radius:20px;overflow:hidden;border:1px solid rgba(184,224,232,.4)}
.faq-q{width:100%;text-align:left;padding:1rem 1.25rem;font-weight:700;font-size:.92rem;background:linear-gradient(135deg,rgba(245,230,234,.5),rgba(232,246,248,.5));border:none;cursor:pointer;color:#4a4050;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q::after{content:"○";font-size:.75rem;color:#b8a0b0;font-weight:400}
.faq-item.open .faq-q::after{content:"●";color:#a8c8d8}
.faq-a{display:none;padding:0 1.25rem 1rem;font-size:.88rem;color:#8a7888;line-height:1.7;background:#fff}
.faq-item.open .faq-a{display:block;padding-top:.75rem}

@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr}
}