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var(--lab-border);border-radius:12px;background:var(--lab-surface)}.tut-axis-label{font-size:12px;color:var(--lab-dim)}.tut-axis-btn{padding:7px 10px;border-radius:9px;border:1px solid var(--lab-border);background:#fff;color:#0f172a;font-size:12.5px;cursor:pointer}.tut-axis-btn.is-on{background:#0f766e;border-color:#0f766e;color:#fff}.tut-axis-hint{grid-column:1 / -1;margin:2px 0 0;font-size:11.5px;color:var(--lab-dim)}.tut-mirror{margin:2px 0 8px;padding:8px 10px;border-radius:8px;background:#fdf3e7;border:1px solid #f3d9b5;font-size:12.5px;line-height:1.6}.tut-mirror-label{color:#8a8f98;margin-right:8px}.tut-mirror-state{font-weight:600;color:#b45309}.tut-mirror-hint{display:block;margin-top:2px;color:#8a8f98;font-size:11.5px}.tut-mirror.is-ok{background:#eef7f1;border-color:#bfe3cd}.tut-mirror.is-ok .tut-mirror-state{color:#2f8f5b}.tut-stage .lab-stage-scope{position:absolute;top:104px;right:12px;left:auto;width:188px;height:284px;z-index:4}.tut-align-badge{position:absolute;top:14px;left:50%;transform:translate(-50%);z-index:6;padding:6px 16px;border-radius:999px;border:2px solid #2f8f5b;background:#eaf7ef;color:#1f7a4c;font-size:13px;font-weight:600;letter-spacing:.5px;width:auto;height:auto;box-shadow:0 6px 16px #1f7a4c2e;pointer-events:none}.tut-diag{margin:10px 0 4px;padding:10px 12px;border:1px solid #e2e6ea;border-radius:10px;background:#fbfcfd;font-size:11.5px;color:var(--lab-dim)}.tut-diag-h{font-weight:600;color:#111827;margin-bottom:6px}.tut-diag table{width:100%;border-collapse:collapse}.tut-diag th{text-align:left;font-weight:500;color:#6b7280;white-space:nowrap;padding:2px 8px 2px 0;vertical-align:top}.tut-diag td{color:#111827;padding:2px 0;font-variant-numeric:tabular-nums}.tut-diag i{color:#9ca3af;font-style:normal}.lab-optic-rail{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 3px;border-radius:10px;background:linear-gradient(180deg,#081a28f7,#06121efa);border:1px solid rgba(72,226,255,.38);box-shadow:0 0 14px #38d6ff38,inset 0 0 10px #38d6ff1a;color:#9fe9ff;font-size:9.5px;letter-spacing:.04em;-webkit-user-select:none;-moz-user-select:none;user-select:none;cursor:ns-resize;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.lab-optic-rail.is-h{flex-direction:row;cursor:ew-resize}.lab-optic-label{font-variant-numeric:tabular-nums;white-space:nowrap;text-shadow:0 0 6px rgba(80,226,255,.55)}.lab-optic-track{position:relative;width:3px;height:96px;border-radius:2px;background:linear-gradient(180deg,#3cdcff1a,#3cdcff6b,#3cdcff1a);box-shadow:inset 0 0 6px #3cdcff73}.lab-optic-rail.is-h .lab-optic-track{width:96px;height:4px;background:linear-gradient(90deg,#3cdcff1a,#3cdcff6b,#3cdcff1a)}.lab-optic-knob{position:absolute;left:50%;top:50%;width:11px;height:11px;margin:0;border-radius:50%;background:#eafcff;box-shadow:0 0 10px #35e5ff,0 0 3px #fff}.lab-optic-rail.is-h .lab-optic-knob{left:50%;top:50%}.tut-card .lab-read-input{font:600 15px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;padding:6px 8px;border-radius:8px}.tut-table{margin-top:8px;border:1px solid var(--lab-line);border-radius:10px}.tut-table .lab-table-sm{font-size:11.5px}.tut-table .lab-table-sm th,.tut-table .lab-table-sm td{padding:4px 3px}.tut-table .lab-table-sm td{font-variant-numeric:tabular-nums}.mic-zero-row{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin:4px 0 8px}.tut-preload{margin-bottom:10px}.tut-preload svg{display:block;width:100%;height:auto}.tut-preload-bg{fill:#fbe3e1;stroke:#efc4c0;stroke-width:1;transition:fill .5s ease,stroke .5s ease}.tut-preload.is-done .tut-preload-bg{fill:#ddf3e4;stroke:#b6e0c5}.tut-preload-clamp{fill:#6b7280}.tut-preload-wire{fill:none;stroke:#b91c1c;stroke-width:2.6;stroke-linecap:round;transition:d .6s ease,stroke .4s ease}.tut-preload.is-done .tut-preload-wire{stroke:#15803d}.tut-preload-pan{fill:#9ca3af}.tut-preload-weight{fill:#4b5563;animation:tut-preload-pop .45s ease-out}@keyframes tut-preload-pop{0%{transform:scale(.4);opacity:.2}to{transform:scale(1);opacity:1}}.tut-preload-tip{display:inline-block;margin-top:4px;font-size:11.5px;color:#b91c1c}.tut-preload.is-done .tut-preload-tip{color:#15803d}.tut-substep{margin:0;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--lab-accent);text-transform:none}