:root{--bg:#f2f2f7;--card-bg:#fff;--card-sub-bg:#f9f9fb;--ink:#1c1c1e;--muted:#8e8e93;--border:#e5e5ea;--border-light:#f2f2f7;--accent:#007aff;--accent-light:#eef6ff;--accent-glow:#007aff40;--lamp-lit:#fc0;--lamp-glow:#ffcc008c;--success:#34c759;--danger:#ff3b30;--ff-sans:-apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--ff-serif:"Libre Baskerville", Georgia, serif;--ff-mono:"DM Mono", "SF Mono", Menlo, Consolas, monospace}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);min-height:100vh;color:var(--ink);font-family:var(--ff-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}.mono{font-family:var(--ff-mono)}.serif{font-family:var(--ff-serif)}.back-nav{z-index:100;position:fixed;top:14px;left:14px}.back-btn{-webkit-backdrop-filter:blur(12px);color:var(--ink);background:#ffffffd9;border:1px solid #00000014;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:500;text-decoration:none;transition:all .18s;display:inline-flex;box-shadow:0 2px 8px #0000000a}.back-btn:hover{background:#fff;transform:translate(-2px);box-shadow:0 4px 12px #00000014}.back-arrow{font-size:16px;line-height:1}.app-container{max-width:1140px;margin:0 auto;padding:56px 16px 48px}.app-header{text-align:left;margin-bottom:24px}.badge{background:var(--card-bg);border:1px solid var(--border);letter-spacing:.04em;color:var(--accent);border-radius:999px;align-items:center;gap:6px;margin-bottom:10px;padding:4px 10px;font-size:11px;font-weight:600;display:inline-flex;box-shadow:0 1px 3px #00000005}.badge-dot{background:var(--success);width:6px;height:6px;box-shadow:0 0 6px 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(width>=960px){.enigma-grid{grid-template-columns:minmax(420px,1.15fr) minmax(380px,1fr)}}.card{background:var(--card-bg);border:1px solid #00000008;border-radius:20px;padding:24px;box-shadow:0 12px 36px #0000000d,0 2px 8px #00000008}.panel-inspector{flex-direction:column;gap:22px;display:flex}.drums-container{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:16px;gap:12px;margin-bottom:20px;padding:16px;display:flex;overflow-x:auto}.drum-unit{flex-direction:column;flex:1;align-items:center;gap:8px;min-width:0;transition:all .2s;display:flex}.m4-only.hidden-m4{display:none!important}.drum-header{align-items:center;gap:6px;display:flex}.drum-tier{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-size:11px;font-weight:600}.drum-id{font-size:10px;font-family:var(--ff-mono);color:var(--ink);background:#e5e5ea;border-radius:4px;padding:1px 6px;font-weight:700}.rotor-viewport{background:#0f1115;border-radius:12px;width:100%;height:84px;position:relative;overflow:hidden;box-shadow:inset 0 2px 8px #0006}.rotor-drum{will-change:transform;width:100%;transition:transform .22s cubic-bezier(.34,1.56,.64,1);position:absolute;left:0}.rotor-drum .r-letter{height:28px;font-family:var(--ff-mono);color:#ffffff40;justify-content:center;align-items:center;font-size:14px;font-weight:500;transition:color .15s,font-weight .15s;display:flex}.rotor-drum .r-letter.active{color:#0a84ff;font-size:15px;font-weight:700}.rotor-center-bar{pointer-events:none;background:#ffffff08;border-top:1px solid #ffffff14;border-bottom:1px solid #ffffff14;height:28px;position:absolute;top:50%;left:0;right:0;transform:translateY(-50%)}.drum-footer{flex-direction:column;align-items:center;gap:2px;display:flex}.drum-curr-pos{font-family:var(--ff-mono);color:var(--ink);border:1px solid var(--border);background:#f2f2f7;border-radius:999px;padding:1px 8px;font-size:13px;font-weight:700}.drum-sub{color:var(--muted);font-size:10px}.config-stack{flex-direction:column;gap:16px;display:flex}.settings-header{align-items:center;gap:12px;margin-bottom:6px;display:flex}.settings-toggle-btn{background:var(--bg);border:1px solid var(--border);color:var(--ink);cursor:pointer;border-radius:10px;padding:8px 12px;font-weight:700}.settings-toggle-btn.active{background:#fff;box-shadow:0 6px 20px #0000000f}.settings-note{color:var(--muted);font-size:12px}.settings-panel{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:12px;padding:12px;display:block}.settings-panel.hidden{display:none}.settings-panel-top{justify-content:flex-end;margin-bottom:8px;display:flex}.settings-close{color:var(--muted);cursor:pointer;background:0 0;border:none;font-weight:700}.config-group{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:14px;padding:12px 14px}.group-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.group-label{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-size:11px;font-weight:600}.hint-btn{background:var(--accent-light);width:18px;height:18px;color:var(--accent);cursor:pointer;border:1px solid #007aff33;border-radius:50%;justify-content:center;align-items:center;font-size:10px;font-weight:700;line-height:1;transition:all .14s;display:inline-flex}.hint-btn:hover{background:#dbebff;transform:scale(1.08)}.hint-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.hint-box{background:var(--accent-light);color:#0051a8;border:1px solid #007aff2e;border-radius:8px;margin-bottom:10px;padding:8px 10px;font-size:11px;line-height:1.45;animation:.15s ease-out fadeIn;display:none}.hint-box.open{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.dual-row{grid-template-columns:1fr 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var(--accent-glow)}.form-input{height:38px}.plug-preview{font-family:var(--ff-mono);color:var(--muted);white-space:nowrap;text-overflow:ellipsis;margin-top:6px;font-size:10px;overflow:hidden}.reflector-toggle{background:var(--bg);border-radius:10px;gap:4px;height:38px;padding:3px;display:flex}.toggle-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;font-size:12px;font-weight:600;transition:all .14s}.toggle-btn.active{color:var(--ink);background:#fff;box-shadow:0 2px 6px #0000000f}.form-textarea{resize:vertical;font-size:13px;line-height:1.4}.output-wrapper{position:relative}.output-textarea{color:#111827;background:#fafafa;padding-right:60px}.char-count{color:var(--muted);font-size:11px}.copy-btn{background:var(--bg);border:1px solid var(--border);color:var(--ink);cursor:pointer;border-radius:6px;padding:4px 10px;font-size:11px;font-weight:600;transition:all 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12px;font-size:12px}.inspector-section{flex-direction:column;gap:10px;display:flex}.inspector-header{justify-content:space-between;align-items:center;display:flex}.inspector-title{text-transform:uppercase;letter-spacing:.06em;color:var(--ink);align-items:center;gap:6px;font-size:12px;font-weight:600;display:flex}.dot-indicator{background:var(--accent);border-radius:50%;width:7px;height:7px}.dot-purple{background:#af52de}.dot-green{background:var(--success)}.badge-pill,.step-counter,.speed-badge{background:var(--bg);color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 8px;font-size:10px;font-weight:600}.inspector-desc{color:var(--muted);font-size:12px;line-height:1.35}.lampboard-grid{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:16px;flex-direction:column;align-items:center;gap:6px;padding:14px 10px;display:flex}.lamp-row{justify-content:center;gap:6px;width:100%;display:flex}.lamp{border:1px solid var(--border);width:32px;height:32px;font-family:var(--ff-mono);color:var(--ink);-webkit-user-select:none;user-select:none;background:#fff;border-radius:50%;justify-content:center;align-items:center;font-size:12px;font-weight:600;transition:all .12s;display:flex;box-shadow:0 1px 3px #0000000a}@media (width<=420px){.lamp{width:28px;height:28px;font-size:11px}}.lamp.active{background:var(--lamp-lit);color:#1c1c1e;box-shadow:0 0 0 3px #ffcc0059, 0 0 16px var(--lamp-glow);border-color:#f59e0b;transform:scale(1.14)}.trace-steps-container{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:12px;flex-wrap:wrap;align-items:center;gap:6px;min-height:32px;padding:10px;display:flex}.t-step{border:1px solid var(--border);color:var(--ink);font-size:11px;font-weight:500;font-family:var(--ff-mono);white-space:nowrap;background:#fff;border-radius:999px;align-items:center;padding:4px 9px;transition:all .16s cubic-bezier(.34,1.56,.64,1);display:inline-flex}.t-step.active{background:var(--accent);color:#fff;border-color:var(--accent);transform:scale(1.08);box-shadow:0 4px 10px #007aff4d}.placeholder-text{color:#b0b0b8;font-size:12px}.trace-flow-box{background:var(--bg);border:1px solid var(--border);color:var(--ink);white-space:nowrap;border-radius:12px;align-items:center;min-height:42px;padding:10px 14px;font-size:12px;display:flex;overflow-x:auto}.speed-slider-row{background:var(--card-sub-bg);border:1px solid var(--border-light);border-radius:12px;align-items:center;gap:12px;padding:10px 14px;display:flex}.speed-lbl{color:var(--muted);text-transform:uppercase;font-size:11px;font-weight:600}.speed-slider{accent-color:var(--accent);cursor:pointer;flex:1}.stepping-card{border:1px solid var(--border);background:#f2f2f7b3;border-radius:14px;padding:12px 14px}.stepping-header{align-items:center;gap:6px;margin-bottom:4px;display:flex}.stepping-icon{color:var(--muted);font-size:14px}.stepping-title{text-transform:uppercase;letter-spacing:.05em;color:var(--ink);font-size:11px;font-weight:600}.stepping-text{color:var(--muted);font-size:11px;line-height:1.45}.app-footer{text-align:center;color:var(--muted);margin-top:32px;font-size:12px}