:root{--bg-app: #0f1419;--bg-panel: #161c24;--bg-panel-2: #1c2430;--bg-input: #0d1117;--bg-hover: #222b38;--border: #2d3a4d;--border-light: #3d4f66;--text: #e6edf3;--text-secondary: #9aa8b8;--text-muted: #6b7a8f;--accent: #f59e0b;--accent-dim: rgba(245, 158, 11, .15);--accent-hover: #fbbf24;--accent-blue: #38bdf8;--accent-blue-dim: rgba(56, 189, 248, .12);--danger: #f87171;--danger-dim: rgba(248, 113, 113, .12);--success: #4ade80;--success-dim: rgba(74, 222, 128, .1);--radius: 3px;--font-mono: "Consolas", "SF Mono", "Cascadia Code", monospace;--shadow-panel: 0 4px 24px rgba(0, 0, 0, .35)}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;height:100vh;overflow:hidden;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg-app);color:var(--text)}button,input,select{font:inherit}button{cursor:pointer}::selection{background:var(--accent-dim);color:var(--accent-hover)}.app{display:grid;grid-template-columns:340px 1fr;height:100vh;overflow:hidden}.sidebar{background:var(--bg-panel);border-right:1px solid var(--border);padding:0 16px;overflow:hidden;display:flex;flex-direction:column;height:100vh;box-shadow:var(--shadow-panel);z-index:2}.sidebar>.part-library{flex:1;min-height:0}.main{display:flex;flex-direction:column;height:100vh;overflow:hidden;min-width:0;background:var(--bg-app)}.header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;background:linear-gradient(180deg,#1a222c 0%,var(--bg-panel) 100%);border-bottom:1px solid var(--border);position:relative}.header:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent) 0%,#ea580c 50%,var(--accent) 100%)}.header-brand{display:flex;align-items:center;gap:14px}.header-logo{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2a3544,#1a222c);border:1px solid var(--border-light);border-radius:var(--radius);font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:-.5px;box-shadow:inset 0 1px #ffffff0f}.header h1{margin:0;font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text)}.header p{margin:3px 0 0;font-size:12px;color:var(--text-muted)}.header-badge{flex-shrink:0;padding:6px 12px;border:1px solid var(--border-light);border-radius:var(--radius);background:var(--bg-input);font-family:var(--font-mono);font-size:10px;font-weight:600;letter-spacing:.12em;color:var(--text-secondary)}.header-marquee{flex:1;min-width:0;overflow:hidden;padding:0 12px;-webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%);mask-image:linear-gradient(90deg,transparent 0%,#000 12%,#000 88%,transparent 100%)}.header-marquee-track{display:flex;width:max-content;gap:4rem;animation:header-marquee-scroll 22s linear infinite}.header-marquee-track span{flex-shrink:0;white-space:nowrap;font-size:15px;font-weight:600;letter-spacing:.06em;color:var(--accent);text-shadow:0 0 24px rgba(245,158,11,.35)}@keyframes header-marquee-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}@media(prefers-reduced-motion:reduce){.header-marquee-track{animation:none;justify-content:center;width:100%}.header-marquee-track span:last-child{display:none}}.viewer-wrap{flex:1;min-height:0;position:relative;touch-action:none;background:linear-gradient(rgba(56,189,248,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.03) 1px,transparent 1px),linear-gradient(180deg,#121820,#0a0e14);background-size:40px 40px,40px 40px,100% 100%;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.viewer-hint{position:absolute;bottom:14px;left:14px;display:flex;align-items:center;gap:8px;padding:8px 14px;background:#0f1419e0;border:1px solid var(--border-light);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:var(--text-secondary);pointer-events:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.viewer-hint-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 8px var(--success);animation:pulse-live 2s ease-in-out infinite}@keyframes pulse-live{0%,to{opacity:1}50%{opacity:.45}}.bom-panel{background:var(--bg-panel);border-top:1px solid var(--border);padding:12px 24px 16px;max-height:240px;flex-shrink:0;overflow-y:auto}.section-title{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.form-group{margin-bottom:14px}.form-group label{display:block;margin-bottom:6px;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-secondary)}.form-group input,.form-group select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);color:var(--text);transition:border-color .15s,box-shadow .15s}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-dim)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.checkbox-group{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;padding:10px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius)}.checkbox-group input{width:auto;margin-top:2px;accent-color:var(--accent)}.checkbox-group label{font-size:13px;color:var(--text-secondary);line-height:1.45}.bom-table{width:100%;border-collapse:collapse;font-size:13px}.bom-table th,.bom-table td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--border)}.bom-table th{background:var(--bg-input);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.bom-table tbody tr:hover{background:var(--bg-hover)}.bom-table td.num{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums}.bom-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -4px;padding:0 4px}.bom-note{font-size:11px;color:var(--text-muted);margin-top:2px}.bom-total{display:flex;justify-content:flex-end;align-items:center;gap:16px;margin-top:12px;padding-top:12px;border-top:2px solid var(--accent)}.bom-total-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.bom-total-value{font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--accent)}.summary-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.summary-tag{padding:4px 10px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;color:var(--text-secondary)}@media(max-width:900px){.header-badge{display:none}}@media(max-width:768px){html,body,#root{height:100dvh}.app--mobile{display:flex;flex-direction:column;height:100dvh;overflow:hidden}.app--mobile .sidebar{display:none}.main--mobile{flex:1;min-height:0;display:flex;flex-direction:column;height:auto;padding-bottom:calc(56px + env(safe-area-inset-bottom,0px))}.header{padding:10px 14px;flex-shrink:0}.header-logo{width:36px;height:36px;font-size:11px}.header h1{font-size:15px}.header p{font-size:11px}.header-marquee{padding:0 6px}.header-marquee-track span{font-size:12px;letter-spacing:.04em}.main--mobile .viewer-wrap{flex:1 1 auto;min-height:38dvh;border-top:none}.main--mobile.main--with-panel .viewer-wrap{flex:0 0 34dvh;min-height:200px;max-height:38dvh}.viewer-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:13px;letter-spacing:.06em}.mobile-panel-area{flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;border-top:2px solid var(--accent);background:var(--bg-panel);padding:10px 14px 12px}.mobile-panel-area .shelf-template,.mobile-panel-area .part-library,.mobile-panel-area .bom-panel,.mobile-panel-area .export-share-panel{max-height:none;overflow:visible;padding-bottom:8px}.mobile-panel-area .bom-panel{border-top:none;padding:0}.mobile-panel-area .export-share-panel{margin:0;padding:0;border:none;background:transparent}.mobile-panel-tip{margin:0 0 10px;padding:8px 10px;border-radius:var(--radius);background:var(--accent-dim);border:1px solid rgba(245,158,11,.35);color:var(--accent);font-size:12px;line-height:1.45}.viewer-hint{left:10px;right:10px;bottom:10px;font-size:10px;padding:6px 10px}.mobile-reset-view-btn{position:absolute;top:10px;right:10px;z-index:5;padding:8px 14px;min-height:44px;border:1px solid var(--border-light);border-radius:var(--radius);background:#0f1419e0;color:var(--accent);font-size:12px;font-weight:600;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:100;display:flex;align-items:stretch;padding-bottom:env(safe-area-inset-bottom,0px);background:var(--bg-panel-2);border-top:1px solid var(--border);box-shadow:0 -4px 20px #00000059}.mobile-nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;padding:6px 4px;border:none;background:transparent;color:var(--text-muted);font-size:10px;font-weight:600;letter-spacing:.04em;transition:color .15s,background .15s}.mobile-nav-btn.active{color:var(--accent);background:var(--accent-dim)}.mobile-nav-icon{font-size:16px;line-height:1}.mobile-nav-label{line-height:1.2}.form-row{grid-template-columns:1fr}.tier-height-row{grid-template-columns:48px 1fr auto}.form-group input,.form-group select,.search-input,.export-share-btn,.generate-btn,.tool-btn{min-height:44px;font-size:16px}.slot-check{min-height:40px;padding:8px 10px}.toolbar--compact{padding:8px 0;margin-bottom:8px;border-bottom:1px solid var(--border)}.toolbar--compact .tool-buttons{margin-bottom:0}.bom-table{min-width:520px}.bom-total-value{font-size:20px}.template-preview{font-size:11px}}@media(max-width:768px)and (orientation:landscape){.main--mobile.main--with-panel .viewer-wrap{flex:0 0 45dvh;max-height:50dvh}}.part-library{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden;padding-bottom:16px}.library-hint{margin:0 0 12px;font-size:12px;color:var(--text-muted);line-height:1.5}.search-input{width:100%;padding:8px 10px;margin-bottom:12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);color:var(--text)}.search-input:focus{outline:none;border-color:var(--accent)}.category-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.category-tab{padding:5px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);font-size:12px;color:var(--text-secondary);transition:all .15s}.category-tab.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.part-list{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding-right:6px;margin-right:-6px}.part-list::-webkit-scrollbar,.sidebar-scroll::-webkit-scrollbar,.shelf-template::-webkit-scrollbar,.bom-panel::-webkit-scrollbar{width:6px}.part-list::-webkit-scrollbar-thumb,.sidebar-scroll::-webkit-scrollbar-thumb,.shelf-template::-webkit-scrollbar-thumb,.bom-panel::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}.part-group-title{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid var(--border)}.part-card{padding:10px 12px;margin-bottom:8px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);cursor:grab;transition:border-color .15s,background .15s}.part-card:hover{border-color:var(--accent);background:var(--bg-hover)}.part-card.selected{border-color:var(--accent);background:var(--accent-dim);box-shadow:inset 3px 0 0 var(--accent)}.part-card-id{font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--accent-blue)}.part-card-name{font-size:12px;color:var(--text);margin-top:2px}.part-card-desc,.part-card-price{font-size:11px;color:var(--text-muted);margin-top:2px}.toolbar{padding:10px 24px;background:var(--bg-panel-2);border-bottom:1px solid var(--border)}.tool-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.tool-btn{padding:6px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);font-size:12px;color:var(--text-secondary);transition:all .15s}.tool-btn:hover:not(:disabled){border-color:var(--border-light);color:var(--text)}.tool-btn.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.tool-btn.danger{color:var(--danger);border-color:#f8717166}.tool-btn:disabled{opacity:.4;cursor:not-allowed}.axis-label{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);align-self:center;margin-right:4px}.toolbar-status{font-size:12px;color:var(--text-secondary)}.toolbar-selected{font-size:11px;font-family:var(--font-mono);color:var(--text-muted);margin-top:4px}.toolbar-error{font-size:12px;color:var(--danger);margin-top:6px;padding:8px 10px;background:var(--danger-dim);border-radius:var(--radius);border:1px solid rgba(248,113,113,.3)}.empty-bom{font-size:13px;color:var(--text-muted);margin:0}.sidebar-tabs{display:flex;gap:0;margin:0 -16px;padding:0 16px;border-bottom:1px solid var(--border);flex-shrink:0;background:var(--bg-panel-2)}.sidebar-tab{flex:1;padding:12px 8px;border:none;border-bottom:2px solid transparent;background:transparent;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);cursor:pointer;transition:color .15s,border-color .15s}.sidebar-tab:hover{color:var(--text-secondary)}.sidebar-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.sidebar-scroll{flex:1;min-height:0;overflow-y:auto;padding:12px 0 8px}.shelf-template{flex:1;min-height:0;overflow-y:auto;padding-bottom:16px}.template-badge{display:inline-block;padding:4px 10px;margin-bottom:12px;background:var(--accent-dim);color:var(--accent);border:1px solid rgba(245,158,11,.35);border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.06em}.template-section-title{margin:16px 0 8px;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary);padding-top:12px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px}.inline-link-btn{border:none;background:none;color:var(--accent-blue);font-size:11px;cursor:pointer;padding:0;font-weight:400;letter-spacing:normal;text-transform:none}.tier-height-row{display:grid;grid-template-columns:56px 1fr auto;align-items:center;gap:8px}.tier-height-row label{margin:0;font-size:12px;color:var(--text-secondary)}.tier-height-row input{width:100%;padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);color:var(--text)}.unit-hint{font-size:11px;color:var(--text-muted);white-space:nowrap}.slot-grid-label{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);margin:8px 0 6px}.slot-grid{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.slot-check{display:flex;align-items:center;gap:4px;padding:4px 8px;border:1px solid var(--border);border-radius:var(--radius);font-size:12px;font-family:var(--font-mono);cursor:pointer;background:var(--bg-input);color:var(--text-secondary);transition:all .15s}.slot-check:has(input:checked){border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}.slot-check input{width:auto;margin:0;accent-color:var(--accent)}.template-preview{padding:12px 14px;margin:12px 0;background:var(--bg-input);border:1px solid var(--border);border-left:3px solid var(--accent-blue);border-radius:var(--radius);font-size:12px;font-family:var(--font-mono);color:var(--text-secondary);line-height:1.65}.template-warning{color:var(--danger);font-weight:600}.generate-btn{width:100%;padding:12px;border:1px solid var(--accent);border-radius:var(--radius);background:linear-gradient(180deg,#f59e0b,#d97706);color:#0f1419;font-size:13px;font-weight:700;letter-spacing:.04em;cursor:pointer;transition:filter .15s,transform .1s}.generate-btn:hover{filter:brightness(1.08)}.generate-btn.secondary-btn{margin-top:8px;background:transparent;color:var(--accent-blue);border-color:var(--border-light)}.generate-btn.secondary-btn:hover{background:var(--accent-blue-dim);border-color:var(--accent-blue)}.export-share-panel{flex-shrink:0;border-top:1px solid var(--border);background:var(--bg-panel-2);margin:0 -16px;padding:14px 16px 16px}.export-share-desc{margin:0 0 10px;font-size:11px;line-height:1.5;color:var(--text-muted)}.export-share-actions{display:flex;flex-direction:column;gap:8px}.export-share-btn{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);color:var(--text-secondary);font-size:12px;font-weight:600;transition:all .15s}.export-share-btn:hover:not(:disabled){border-color:var(--accent-blue);color:var(--accent-blue);background:var(--accent-blue-dim)}.export-share-btn.primary{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.export-share-btn.primary:hover:not(:disabled){background:#f59e0b40;color:var(--accent-hover)}.export-share-btn:disabled{opacity:.5;cursor:not-allowed}.export-share-file-input{display:none}.export-share-hint{margin-top:8px;padding:8px 10px;border-radius:var(--radius);background:var(--success-dim);border:1px solid rgba(74,222,128,.35);color:var(--success);font-size:12px;line-height:1.4}.part-group{margin-bottom:16px}