:root{--ht-blue:#0874d1;--ht-blue-dark:#075aa3;--ht-ink:#172033;--ht-soft:#f4f8fc;--ht-line:#dbe6f0}
*{box-sizing:border-box}
body.ht-help-page{margin:0;background:#fff;color:var(--ht-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.ht-help-header{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:12px clamp(18px,4vw,56px);border-bottom:1px solid var(--ht-line);background:#fff;position:relative;z-index:10}
.ht-help-brand{display:flex;align-items:center;gap:14px;color:var(--ht-ink);font-weight:700;text-decoration:none;font-size:18px}
.ht-help-brand img{display:block;width:auto;height:42px;max-width:min(190px,42vw);object-fit:contain}
.ht-help-header nav{display:flex;align-items:center;gap:18px}
.ht-help-header nav a{color:var(--ht-blue-dark);font-weight:600;text-decoration:none;white-space:nowrap}
.ht-help-header .ht-help-support{background:var(--ht-blue);color:#fff;border-radius:9px;padding:11px 16px}
.ht-help-page main{min-height:calc(100vh - 140px)}
.ht-help-intro{text-align:center;padding:52px 20px 18px;background:linear-gradient(180deg,var(--ht-soft),#fff)}
.ht-help-intro h1{font-size:clamp(32px,5vw,52px);line-height:1.08;margin:8px 0 12px;color:var(--ht-ink)}
.ht-help-intro p{max-width:760px;margin:0 auto;color:#546176;font-size:17px;line-height:1.65}
.ht-help-intro .ht-help-kicker{color:var(--ht-blue);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
#sb-articles{max-width:1180px;margin:0 auto;padding:30px clamp(16px,3vw,38px) 64px}
.ht-kb-article{min-width:0;overflow-wrap:anywhere;word-break:normal}
.ht-kb-article img,.ht-kb-article video,.ht-kb-article iframe{max-width:100%!important;height:auto}
.ht-kb-article iframe{aspect-ratio:16/9;min-height:220px;border:0}
.ht-kb-article table{display:block;max-width:100%!important;width:100%!important;overflow-x:auto;border-collapse:collapse}
.ht-kb-article td,.ht-kb-article th{max-width:none!important}
.ht-kb-article pre,.ht-kb-article code{white-space:pre-wrap;overflow-wrap:anywhere}
.ht-kb-article a{overflow-wrap:anywhere}
.ht-help-footer{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;padding:24px;border-top:1px solid var(--ht-line);color:#657187;font-size:14px}
.ht-help-footer a{color:var(--ht-blue-dark);text-decoration:none}
@media(max-width:680px){
 .ht-help-header{min-height:64px;padding:10px 14px;gap:12px}
 .ht-help-brand{gap:9px;font-size:14px}.ht-help-brand img{height:34px;max-width:130px}
 .ht-help-header nav{gap:8px}.ht-help-header nav a:first-child{display:none}
 .ht-help-header .ht-help-support{padding:9px 11px;font-size:13px}
 .ht-help-intro{padding:38px 18px 10px}.ht-help-intro p{font-size:15px}
 #sb-articles{padding:20px 12px 44px}
 .ht-kb-article iframe{min-height:180px}
}