:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}*{box-sizing:border-box}body{color:#111827;background:#f3f4f6;margin:0;font-family:Arial,sans-serif}.page{max-width:1200px;margin:0 auto;padding:24px}.hero{margin-bottom:24px}.hero h1{margin-bottom:8px;font-size:32px}.hero p{color:#4b5563;max-width:760px;line-height:1.5}.layout{grid-template-columns:1.3fr .7fr;gap:20px;margin-bottom:20px;display:grid}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:20px;box-shadow:0 2px 8px #0000000a}.panel h2{margin-top:0}.controls{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.controls.vertical{flex-direction:column;margin-top:16px}button,.fileButton{cursor:pointer;background:#fff;border:1px solid #d1d5db;border-radius:10px;padding:9px 13px;font-size:14px}button:hover,.fileButton:hover{background:#f9fafb}button:disabled{opacity:.5;cursor:not-allowed}.fileButton input{display:none}.videoBox{background:#000;border-radius:14px;width:100%;position:relative;overflow:hidden}.video{object-fit:contain;width:100%;height:100%;position:absolute;inset:0}.placeholder{color:#d1d5db;text-align:center;place-items:center;padding:30px;display:grid;position:absolute;inset:0}.overlay{cursor:crosshair;width:100%;height:100%;position:absolute;inset:0}.calibrationPoint{fill:#fff;stroke:#000;stroke-width:2px}.calibrationLine{stroke:#fff;stroke-width:3px;stroke-dasharray:8 6}.originLine{stroke:#ff0;stroke-width:3px}.measurementPoint{fill:#38bdf8;stroke:#fff;stroke-width:2px}.pointText{fill:#fff;font-size:18px;font-weight:700}.message{color:#374151;background:#f3f4f6;border-radius:12px;padding:12px;line-height:1.45}.modeButtons{grid-template-columns:repeat(3,1fr);gap:8px;margin:16px 0;display:grid}.modeButtons button.active{color:#fff;background:#111827}.inputGroup{flex-direction:column;gap:6px;margin-bottom:16px;font-size:14px;display:flex}.inputGroup input{border:1px solid #d1d5db;border-radius:8px;padding:8px 10px}.statusGrid{grid-template-columns:1fr;gap:10px;display:grid}.statusGrid div{border:1px solid #e5e7eb;border-radius:10px;justify-content:space-between;gap:12px;padding:10px;display:flex}.statusGrid span{color:#6b7280}.chartBox{height:360px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #e5e7eb;padding:8px}th{background:#f9fafb}.questions{line-height:1.8}@media (width<=900px){.layout{grid-template-columns:1fr}}.stepIndicator{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:20px;display:grid}.stepItem{color:#6b7280;background:#fff;border:1px solid #e5e7eb;border-radius:12px;align-items:center;gap:10px;padding:10px;display:flex}.stepItem.current{color:#111827;border-color:#111827;font-weight:700}.stepItem.done{color:#166534;background:#f0fdf4}.stepNumber{background:#f3f4f6;border-radius:999px;place-items:center;width:28px;height:28px;font-weight:700;display:grid}.stepItem.current .stepNumber{color:#fff;background:#111827}.welcomePanel{font-size:17px;line-height:1.6}.bigList{line-height:1.9}.primaryButton{color:#fff;background:#111827}.primaryButton:hover{background:#374151}.hintBox,.conclusionBox{background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;margin-top:16px;padding:14px;line-height:1.5}.miniChart{height:260px;margin-top:16px}.fitGrid{grid-template-columns:repeat(2,1fr);margin:16px 0}.navigationBar{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#f3f4f6eb;border-top:1px solid #e5e7eb;justify-content:space-between;gap:12px;margin-top:20px;padding:16px 0;display:flex;position:sticky;bottom:0}@media (width<=900px){.stepIndicator,.fitGrid{grid-template-columns:1fr}.navigationBar{flex-direction:column}}.axisMain{stroke:#facc15f2;stroke-width:2px;stroke-dasharray:8 6}.axisTick{stroke:#facc15f2;stroke-width:2px}.axisLabel{fill:#fff;paint-order:stroke;stroke:#000;stroke-width:3px;stroke-linejoin:round;font-size:14px;font-weight:700}.axisName{font-size:16px}.fitControls{grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0;display:grid}.sliderControl{background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;padding:12px;display:block}.sliderHeader{justify-content:space-between;gap:12px;margin-bottom:8px;font-size:14px;display:flex}.sliderControl input[type=range]{width:100%}.fitNotice{color:#166534;align-items:center;font-weight:700;display:inline-flex}@media (width<=900px){.fitControls{grid-template-columns:1fr}}