.fh-support-page{margin:0;background:#f6f8fb;color:#172033;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.fh-support{max-width:1120px;margin:0 auto;padding:32px 24px 56px}
.fh-support a{color:#2864bd;text-decoration:none}.fh-support a:hover{text-decoration:underline}.fh-support a:focus-visible{outline:3px solid #8bb8ff;outline-offset:4px}
.fh-support-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.fh-support-nav a{padding:10px 16px;border-radius:8px;background:white;border:1px solid #e0e6ef;font-size:15px}.fh-support-nav a[aria-current]{background:#2864bd;color:white;border-color:#2864bd}
.fh-support-hero{padding:32px 0;border-top:3px solid #4678c8}.fh-support-brand{font-size:14px;color:#2864bd;font-weight:700;margin:0 0 12px}.fh-support h1{font-size:clamp(30px,4vw,44px);line-height:1.25;margin:0 0 20px}.fh-support-lead{max-width:860px;font-size:18px;line-height:1.9;color:#4e5d72;margin:0}.fh-support-date{font-size:14px;color:#65738a;margin:16px 0 0}
.fh-support-layout{display:flex;align-items:flex-start;gap:32px}.fh-support-toc{width:235px;flex-shrink:0;background:white;border:1px solid #e0e6ef;border-radius:12px;padding:20px;box-sizing:border-box;font-size:14px;line-height:1.6}.fh-support-toc ol{list-style:none;padding:0;margin:12px 0 0}.fh-support-toc li+li{margin-top:10px}
.fh-support-content{min-width:0;flex:1;background:white;border:1px solid #e0e6ef;border-radius:16px;padding:32px}.fh-support-content section{scroll-margin-top:175px}.fh-support-content section+section{margin-top:28px;padding-top:28px;border-top:1px solid #edf0f5}.fh-support h2{font-size:21px;line-height:1.5;margin:0 0 14px}.fh-support-content p,.fh-support-content li{font-size:16px;line-height:1.95;color:#425067;overflow-wrap:anywhere}.fh-support-content p{margin:10px 0}.fh-support-content ul{padding-left:24px;margin:12px 0}.fh-support-content li+li{margin-top:8px}.fh-support-footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px;margin-top:32px;color:#64748b}
@media(max-width:760px){.fh-support{padding:22px 16px 36px}.fh-support-layout{display:block}.fh-support-toc{width:100%;margin-bottom:20px}.fh-support-toc ol{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}.fh-support-toc li+li{margin:0}.fh-support-content{padding:22px 18px}.fh-support-hero{padding:24px 0}.fh-support-nav{gap:6px}.fh-support-nav a{padding:9px 12px}.fh-support-lead{font-size:16px}}
@media(max-width:400px){.fh-support-toc ol{grid-template-columns:1fr}}