body.help-material-page { margin:0;background:#f6f9ff;color:#142b41;font-family:"Open Sans",Arial,sans-serif; }
.help-material-shell { max-width:1240px;margin:0 auto;padding:32px 28px 60px; }
.help-material-shell nav { margin-bottom:24px;color:#6b7d94;font-size:14px; }
.help-material-shell a { color:#2a5fe7; }
.help-material-shell nav span { padding:0 12px; }
.help-material-shell header { padding:36px 42px;background:#ebf2ff;border-radius:20px; }
.help-material-shell header p { margin:0 0 12px;color:#2a5fe7;font-size:12px;font-weight:700;letter-spacing:.12em; }
.help-material-shell h1 { max-width:900px;margin:0 0 14px;font-size:clamp(26px,3vw,42px);line-height:1.2;font-weight:700; }
.help-material-shell time { color:#6b7d94; }
.help-material-actions { display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin:26px 0; }
.help-material-actions a { display:inline-flex;align-items:center;min-height:24px;line-height:24px;font-weight:600; }
.help-material-shell iframe { display:block;width:100%;height:75vh;min-height:520px;border:1px solid #dce5f2;border-radius:14px;background:#fff; }
@media(max-width:767px) { .help-material-shell { padding:18px 14px 36px; }.help-material-shell header { padding:26px 22px;border-radius:14px; }.help-material-shell iframe { height:70vh;min-height:400px; } }