*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:#efe8dc;color:#3d3a36;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:#5c6b5a;text-decoration:none}
a:hover{color:#2c2a27}
ul{list-style:none}
.container{width:min(1040px,92vw);margin:0 auto}

.site-header{position:sticky;top:0;z-index:100;background:#efe8dc;border-bottom:1px solid #d9d0c4}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.7rem 0;gap:1rem}
.logo{font-weight:650;font-size:.9rem;color:#2c2a27;letter-spacing:.02em}
.nav-main{display:flex;flex-wrap:wrap;gap:.3rem 1.1rem;font-size:.8rem}
.nav-main a{color:#6b6560}
.nav-main a.active,.nav-main a:hover{color:#2c2a27}
.btn-nav{display:inline-block;background:#5c6b5a;color:#f6f1e8!important;padding:.38rem .9rem;border-radius:999px;font-weight:650;font-size:.76rem}

.section{padding:2.5rem 0}
.section-title{font-size:clamp(1.15rem,2.6vw,1.4rem);font-weight:650;margin-bottom:.3rem;color:#2c2a27}
.section-lead{color:#6b6560;font-size:.86rem;margin-bottom:1.2rem;max-width:560px}

.footer{border-top:1px solid #d9d0c4;padding:2rem 0 0;font-size:.78rem;color:#6b6560}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.3rem;margin-bottom:1.1rem}
.footer h3{font-size:.8rem;color:#2c2a27;margin-bottom:.4rem;font-weight:650}
.footer a{color:#6b6560}
.footer-links{display:flex;flex-wrap:wrap;gap:.25rem .7rem}
.footer-bottom{border-top:1px solid #d9d0c4;padding-top:.75rem;text-align:center;color:#8a847c;font-size:.68rem}

.faq-list{display:flex;flex-direction:column;gap:.45rem}
.faq-item{background:#f6f1e8;border-radius:16px;padding:0 1rem}
.faq-q{width:100%;text-align:left;padding:.85rem 0;font-weight:650;font-size:.86rem;background:transparent;border:none;cursor:pointer;color:#2c2a27;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q::after{content:"+";color:#8a847c}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{display:none;padding:0 0 .85rem;font-size:.8rem;color:#6b6560}
.faq-item.open .faq-a{display:block}

.btn-nd{display:inline-block;background:#5c6b5a;color:#f6f1e8;padding:.48rem 1.05rem;border-radius:999px;font-weight:650;font-size:.8rem}
.btn-ghost{display:inline-block;color:#3d3a36;border:1px solid #cfc6b8;padding:.44rem 1rem;border-radius:999px;font-weight:650;font-size:.8rem}

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