*,*::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:#fff;color:#37352f;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:#2eaadc;text-decoration:none}
a:hover{text-decoration:underline}
ul{list-style:none}
.container{width:min(1100px,92vw);margin:0 auto}

.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid #e9e9e7}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.55rem 0;gap:1rem}
.logo{font-weight:700;font-size:.9rem;color:#37352f;display:flex;align-items:center;gap:.4rem}
.logo-ico{width:18px;height:18px;background:#eb5757;border-radius:3px}
.nav-main{display:flex;flex-wrap:wrap;gap:.25rem 1rem;font-size:.8rem}
.nav-main a{color:#787774;font-weight:600}
.nav-main a.active,.nav-main a:hover{color:#37352f;text-decoration:none}
.btn-nav{display:inline-block;background:#37352f;color:#fff!important;padding:.36rem .85rem;font-weight:700;font-size:.76rem;text-decoration:none!important;border-radius:4px}

.crumb{border-bottom:1px solid #e9e9e7;font-size:.72rem;padding:.32rem 0;color:#787774}
.crumb .container{display:flex;flex-wrap:wrap;gap:.3rem .8rem}
.crumb em{color:#37352f;font-style:normal;font-weight:700}

.section{padding:2.6rem 0}
.section-title{font-size:clamp(1.15rem,3vw,1.45rem);font-weight:800;margin-bottom:.35rem;color:#37352f}
.section-lead{color:#787774;font-size:.86rem;margin-bottom:1.3rem;max-width:640px}

.callout{background:#f7f6f3;border-left:3px solid #2eaadc;padding:.75rem .95rem;border-radius:0 4px 4px 0}
.block{background:#fff;border:1px solid #e9e9e7;border-radius:4px}

.footer{border-top:1px solid #e9e9e7;padding:2rem 0 0;font-size:.8rem;color:#787774}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.5rem;margin-bottom:1.2rem}
.footer h3{font-size:.82rem;color:#37352f;margin-bottom:.45rem;font-weight:800}
.footer a{color:#787774}
.footer-links{display:flex;flex-wrap:wrap;gap:.3rem .75rem}
.footer-bottom{border-top:1px solid #e9e9e7;padding-top:.8rem;text-align:center;color:#9b9a97;font-size:.7rem}

.faq-list{display:flex;flex-direction:column;gap:.4rem}
.faq-item{border:1px solid #e9e9e7;border-radius:4px}
.faq-q{width:100%;text-align:left;padding:.8rem .95rem;font-weight:700;font-size:.84rem;background:transparent;border:none;cursor:pointer;color:#37352f;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q::after{content:"+";color:#787774}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{display:none;padding:0 .95rem .8rem;font-size:.8rem;color:#787774}
.faq-item.open .faq-a{display:block}

.btn-nt{display:inline-block;background:#37352f;color:#fff;padding:.48rem 1rem;font-weight:700;font-size:.82rem;text-decoration:none!important;border-radius:4px}
.btn-ghost{display:inline-block;color:#37352f;border:1px solid #e9e9e7;padding:.46rem .95rem;font-weight:700;font-size:.82rem;text-decoration:none!important;background:#fff;border-radius:4px}

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