.help-fab{position:fixed;right:20px;bottom:20px;z-index:30;width:auto;padding:11px 15px;border-radius:999px;box-shadow:0 8px 28px #3c292936}.help-fab span{display:inline-grid;place-items:center;width:22px;height:22px;margin-right:6px;border:1px solid #fff8;border-radius:50%}.help-modal[hidden],.device-guide[hidden]{display:none}.help-modal{position:fixed;inset:0;z-index:120;display:grid;place-items:center;padding:20px;background:#1b1416c9}.help-panel{position:relative;width:min(720px,100%);max-height:calc(100vh - 40px);overflow:auto;padding:clamp(22px,5vw,40px);border-radius:22px;background:var(--paper);box-shadow:0 25px 80px #0007}.help-close{position:absolute;right:13px;top:13px;width:44px;height:44px;padding:0;border-radius:50%;font-size:28px}.help-panel h2{margin:4px 0 18px;font-size:clamp(28px,5vw,42px)}.help-tabs{display:flex;gap:8px;margin-bottom:20px}.help-tabs button{width:auto;background:#d9ced0;color:var(--ink)}.help-tabs button.active{background:var(--rose);color:#fff}.device-guide{display:grid;grid-template-columns:220px 1fr;gap:26px;align-items:center}.device-guide ol{margin:0;padding-left:22px;display:grid;gap:15px;line-height:1.5}.guide-shot{overflow:hidden;width:210px;aspect-ratio:9/14;border:7px solid #211d1e;border-radius:25px;background:#fff;box-shadow:0 10px 30px #3b2b2b25}.shot-top{padding:17px 10px 12px;text-align:center;font-weight:700;border-bottom:1px solid #ddd}.shot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;padding:3px}.shot-grid i{display:block;aspect-ratio:1;background:linear-gradient(145deg,#c9d9d0,#889f96)}.shot-grid i:nth-child(2n){background:linear-gradient(145deg,#e5cfc0,#b48a75)}.shot-bottom{display:flex;justify-content:space-between;padding:18px 10px;color:#236bc6}.android-shot{border-radius:16px}.android-shot .shot-bottom{color:#4268bd}.help-note{margin:22px 0 0;color:var(--muted);font-size:13px}@media(max-width:620px){.help-fab{right:12px;bottom:12px}.device-guide{grid-template-columns:1fr}.guide-shot{width:180px;margin:auto}.help-tabs{padding-right:40px}.help-tabs button{font-size:13px;padding:10px}}