*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:"IBM Plex Sans","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:#0d1117;color:#c9d1d9;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:#79c0ff;text-decoration:none}
a:hover{color:#fff}
ul{list-style:none}
.container{width:min(1140px,92vw);margin:0 auto}
code,pre,kbd,.mono{font-family:"IBM Plex Mono","Cascadia Code",Consolas,monospace}

.site-header{position:sticky;top:0;z-index:100;background:#0d1117;border-bottom:1px solid #21262d}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.52rem 0;gap:1rem}
.logo{font-weight:700;font-size:.82rem;color:#e6edf3;display:flex;align-items:center;gap:.4rem}
.logo-api{width:16px;height:16px;border:1px solid #58a6ff;display:grid;place-items:center;font-size:.55rem;color:#58a6ff}
.nav-main{display:flex;flex-wrap:wrap;gap:.25rem 1rem;font-size:.76rem}
.nav-main a{color:#8b949e;font-weight:600}
.nav-main a.active,.nav-main a:hover{color:#e6edf3}
.btn-nav{display:inline-block;background:#238636;color:#fff!important;padding:.3rem .75rem;font-weight:700;font-size:.72rem}

.section{padding:2.4rem 0}
.section-title{font-size:clamp(1.05rem,2.6vw,1.28rem);font-weight:700;margin-bottom:.28rem;color:#e6edf3}
.section-lead{color:#8b949e;font-size:.82rem;margin-bottom:1.15rem;max-width:640px}

.footer{border-top:1px solid #21262d;padding:2rem 0 0;font-size:.76rem;color:#8b949e}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.3rem;margin-bottom:1.1rem}
.footer h3{font-size:.78rem;color:#e6edf3;margin-bottom:.4rem;font-weight:700}
.footer a{color:#8b949e}
.footer-links{display:flex;flex-wrap:wrap;gap:.22rem .7rem}
.footer-bottom{border-top:1px solid #21262d;padding-top:.7rem;text-align:center;color:#484f58;font-size:.66rem}

.faq-list{display:flex;flex-direction:column}
.faq-item{border-bottom:1px solid #21262d}
.faq-q{width:100%;text-align:left;padding:.78rem 0;font-weight:700;font-size:.82rem;background:transparent;border:none;cursor:pointer;color:#e6edf3;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q::after{content:"+";color:#8b949e}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{display:none;padding:0 0 .78rem;font-size:.78rem;color:#8b949e}
.faq-item.open .faq-a{display:block}

.btn-api{display:inline-block;background:#238636;color:#fff;padding:.42rem .95rem;font-weight:700;font-size:.78rem}
.btn-ghost{display:inline-block;color:#c9d1d9;border:1px solid #30363d;padding:.4rem .9rem;font-weight:700;font-size:.78rem}

.method{display:inline-block;font-size:.6rem;letter-spacing:.04em;padding:.08rem .32rem;border:1px solid #30363d;color:#79c0ff;margin-right:.35rem}

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