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.h2{margin:8px 0 10px;font-size:clamp(1.6rem,5vw,2.2rem)}.panel p{margin:0 0 16px}.panel__fine{color:var(--muted);font-size:.8rem;margin-top:18px!important}.notice{background:#c8f23a4d;border:1px solid #a6cf1280;border-radius:12px;padding:12px 14px;font-size:.92rem}.notice--error{background:var(--signal-soft);color:#8a2508;border-color:#ff6a3d59}.notice a{word-break:break-all}.student-page{flex:1;justify-content:center;padding:12px 12px 16px;display:flex}.student-page .chat{max-width:760px;height:calc(100dvh - 84px);min-height:480px;box-shadow:var(--shadow)}.chat__head-btn{border:1px solid var(--line-on-ink);min-height:38px;color:var(--on-ink);cursor:pointer;background:0 0;border-radius:10px;flex:none;margin-left:auto;padding:0 12px;font-size:.82rem;font-weight:600}.chat__head-btn[aria-expanded=true]{background:var(--volt);color:var(--volt-ink);border-color:var(--volt)}.lessons-panel{background:var(--paper);border-bottom:1px solid var(--line);max-height:45%;padding:10px 14px 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10px;font-size:.88rem}.empty{color:var(--muted);margin:0;font-size:.92rem}.recent-q{gap:8px;margin:0;padding:0;list-style:none;display:grid}.recent-q li{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px;font-size:.92rem}.admin-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:8px 0 20px;display:flex}.admin-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.admin-item{border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);gap:8px;padding:18px;display:grid}.admin-item__links{flex-wrap:wrap;gap:8px 16px;font-size:.9rem;display:flex}.admin-item__meta{font-family:var(--font-mono);color:var(--muted);font-size:.75rem}.editor{gap:18px;display:grid}.editor__row{gap:14px;display:grid}@media (min-width:760px){.editor__row{grid-template-columns:1fr 1fr}}.editor textarea{border:1.5px solid 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12px;font-size:.8rem}.lesson-now__done{font-family:var(--font-mono);flex:none;font-size:.75rem}.link-btn{color:var(--ink);cursor:pointer;font:inherit;background:0 0;border:0;padding:0;text-decoration:underline}.widget-root{flex-direction:column;height:100dvh;display:flex}.widget-root .chat{height:100%;min-height:0;box-shadow:none;border:0;border-radius:0}.widget-signin{background:var(--paper);height:100%;padding:20px 18px;overflow-y:auto}.widget-signin .h3{margin:6px 0 8px}.widget-signin p{margin:0 0 14px;font-size:.92rem}body:has(.widget-root){background:0 0}.install{border-radius:var(--radius-lg);background:var(--paper);border:1px solid var(--line);margin:0 0 16px}.install>summary{cursor:pointer;padding:16px 18px;font-weight:650}.install__body{gap:14px;padding:0 18px 18px;font-size:.92rem;display:grid}.install__body ol{gap:8px;margin:0;padding-left:20px;display:grid}.install__body p{margin:0}.copy-field{background:var(--ink);color:var(--on-ink);border-radius:12px;align-items:center;gap:10px;padding:10px 12px;display:flex}.copy-field code{white-space:nowrap;min-width:0;font-family:var(--font-mono);flex:1;font-size:.78rem;overflow-x:auto}.copy-field .btn--ink{background:var(--volt);color:var(--volt-ink);flex:none}.import-box{border-radius:var(--radius);border:1.5px dashed var(--line-strong);background:var(--paper);justify-items:start;gap:8px;padding:14px 16px;font-size:.88rem;display:grid}.import-box label.btn{cursor:pointer}.import-notes{margin:0;padding-left:18px;font-size:.85rem}.notice--wait{background:#e0940024;border-color:#e0940066}.onboarding-main{max-width:1080px}.onb{grid-template-columns:minmax(0,1fr);gap:20px;display:grid}.onb__head{gap:12px;display:grid}.onb-resume{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 16px;margin:0;display:flex}.onb-resume form{margin:0}.onb-steps{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;margin:0;padding:0;list-style:none;display:grid}.onb-steps__item{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);width:100%;min-height:52px;color:var(--ink);font:inherit;text-align:left;cursor:pointer;grid-template-columns:auto minmax(0,1fr);grid-template-areas:"nr label""nr min";align-items:center;gap:0 10px;padding:8px 10px;display:grid}.onb-steps__item:disabled{cursor:default;opacity:.55}.onb-steps__item.is-current{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.onb-steps__nr{background:var(--chalk-2);border-radius:50%;grid-area:nr;place-items:center;width:28px;height:28px;font-size:.82rem;font-weight:700;display:grid}.onb-steps__item.is-current .onb-steps__nr{background:var(--ink);color:var(--on-ink)}.onb-steps__item.is-done 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var(--line-strong);background:#fff;margin-top:6px;padding:20px}.onb-price__amount{letter-spacing:-.01em;margin:0 0 8px;font-size:1.6rem;font-weight:700}.onb-price ul{gap:6px;margin:0 0 10px;padding-left:18px;display:grid}.onb-install{grid-template-columns:minmax(0,1fr);gap:22px;margin-top:18px;display:grid}@media (min-width:900px){.onb-install{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);align-items:start}}.onb-install .h3{margin:0 0 8px}.onb-guide{gap:8px;margin:0;padding-left:20px;display:grid}.onb-detect{border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:#fff;padding:20px}.onb-detect.is-ok{background:#2c8c5714;border-color:#2c8c5773}.onb-detect p{margin:0}.onb-detect code{overflow-wrap:anywhere}.onb-detect__dot{background:var(--volt-deep);border-radius:50%;width:10px;height:10px;margin-right:4px;animation:1.2s ease-in-out infinite onb-pulse;display:inline-block}@keyframes onb-pulse{50%{opacity:.25}}@media (prefers-reduced-motion:reduce){.onb-detect__dot,.onb-test__loading{animation:none}}.onb-price__per{color:var(--muted);font-size:1rem;font-weight:500}.onb-price__note{color:#1f6b42;margin:-4px 0 12px;font-size:.9rem;font-weight:550}.cycle-switch{background:var(--chalk-2);border-radius:999px;gap:4px;margin-bottom:14px;padding:4px;display:inline-flex}.cycle-switch__opt{min-height:38px;color:var(--ink);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;align-items:center;gap:8px;padding:0 14px;font-size:.9rem;font-weight:600;display:inline-flex}.cycle-switch__opt.is-on{background:var(--ink);color:var(--on-ink)}.cycle-switch__badge{background:var(--volt);color:var(--volt-ink);border-radius:999px;padding:2px 8px;font-size:.72rem;font-weight:700}