@font-face{font-family:SimHei;src:url(../fonts/simhei.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:Arial;src:url(../fonts/arial.ttf) format("truetype");font-weight:400;font-style:normal}:root{--bg-primary: #0d0d12;--bg-secondary: #16161d;--bg-tertiary: #1e1e28;--bg-hover: #262633;--bg-active: #2d2d3d;--text-primary: #f0f0f5;--text-secondary: #a0a0b0;--text-muted: #606070;--accent-primary: #00d4aa;--accent-secondary: #00a3ff;--accent-warning: #ffaa00;--accent-danger: #ff4466;--border-color: #2a2a38;--border-light: #3a3a4a;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--font-sans: "DM Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--transition-fast: .1s ease;--transition-normal: .2s ease}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}.app{display:grid;grid-template-columns:260px 1fr 280px;grid-template-rows:52px 1fr;height:100vh;background:var(--bg-primary)}.header{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;padding:0 var(--spacing-md);background:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:100}.header-left{display:flex;align-items:center;gap:var(--spacing-md)}.logo{display:flex;align-items:center;gap:var(--spacing-sm);font-weight:700;font-size:15px;color:var(--text-primary)}.logo svg{width:24px;height:24px}.project-name{background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);padding:4px 8px;color:var(--text-primary);font-size:13px;font-weight:500;width:140px;transition:all var(--transition-fast)}.project-name:hover{border-color:var(--border-color)}.project-name:focus{outline:none;border-color:var(--accent-primary);background:var(--bg-tertiary)}.header-center,.header-right{display:flex;align-items:center;gap:var(--spacing-sm)}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-color);overflow-y:auto;display:flex;flex-direction:column}.sidebar-section{padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color)}.sidebar-section-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:var(--spacing-sm)}.element-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.element-item{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:10px 6px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);min-height:60px}.element-item:hover{background:var(--bg-hover);border-color:var(--accent-primary);transform:translateY(-1px)}.element-item:active{transform:scale(.98)}.element-item .preview{margin-bottom:4px;display:flex;align-items:center;justify-content:center}.element-item span{font-size:10px;color:var(--text-secondary);text-align:center}.line-badge-preview{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:20px;padding:0 6px;border-radius:4px;font-weight:700;font-size:12px;color:#fff}.line-badge-preview-square{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:4px;font-weight:700;font-size:11px;color:#fff}.exit-preview{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:#ffcd00;color:#000;font-weight:700;font-size:14px;border:2px solid #000}.canvas-area{position:relative;background:var(--bg-primary);background-image:radial-gradient(circle at 1px 1px,var(--border-color) 1px,transparent 0);background-size:24px 24px;overflow:auto;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-lg)}.canvas-controls{display:flex;align-items:center;gap:var(--spacing-md);margin-bottom:var(--spacing-md);padding:6px 12px;background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border-color)}.zoom-controls{display:flex;align-items:center;gap:4px}.zoom-value{min-width:44px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums}.signage-container{transform-origin:center top}.signage-board{background:#fff;border-radius:4px;box-shadow:var(--shadow-lg);overflow:hidden}.signage-row{display:flex;align-items:center;position:relative}.empty-hint{width:100%;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:13px;padding:8px 0}.signage-element{display:flex;align-items:center;justify-content:center;flex-shrink:0;cursor:grab;position:relative;transition:transform var(--transition-fast);-webkit-user-select:none;user-select:none}.signage-element:active{cursor:grabbing}.signage-element.selected{z-index:10}.signage-element.selected:after{content:"";position:absolute;top:-3px;right:-3px;bottom:-3px;left:-3px;border:2px solid var(--accent-primary);border-radius:4px;pointer-events:none}.signage-element.dragging{opacity:.4;transform:scale(1.02)}.signage-element.drag-over-left:before{content:"";position:absolute;left:-7px;top:2px;bottom:2px;width:2px;background:var(--accent-primary);border-radius:1px}.signage-element.drag-over-right:before{content:"";position:absolute;right:-7px;top:2px;bottom:2px;width:2px;background:var(--accent-primary);border-radius:1px}.el-exit{display:flex;align-items:center;justify-content:center;border-radius:50%;font-weight:700;border-style:solid;line-height:1}.el-line-badge{display:flex;align-items:center;justify-content:center;padding:0 8px;font-weight:700;color:#fff;line-height:1}.el-text{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;line-height:1.15}.el-text .cn{font-weight:600;line-height:1}.el-text .en{letter-spacing:.3px;font-weight:500;line-height:1}.el-direction{display:flex;align-items:center;gap:4px}.el-direction .arrow{line-height:1;font-weight:300}.el-direction .text{display:flex;flex-direction:column;line-height:1.15}.el-direction .text .cn{font-weight:500}.el-direction .text .en{text-transform:uppercase;letter-spacing:.2px;font-weight:500}.el-arrow{display:flex;align-items:center;justify-content:center}.el-arrow svg{display:block}.el-icon{display:flex;align-items:center;justify-content:center}.el-icon svg{display:block}.el-divider{opacity:.25;border-radius:1px}.el-transfer{display:flex;align-items:center;gap:4px}.el-transfer .badge{display:flex;align-items:center;justify-content:center;padding:0 6px;font-weight:700;color:#fff;line-height:1}.el-transfer .text{font-weight:500}.properties-panel{background:var(--bg-secondary);border-left:1px solid var(--border-color);overflow-y:auto;display:flex;flex-direction:column}.properties-section{padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color)}.properties-section-title{font-size:11px;font-weight:600;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.property-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.property-label{font-size:11px;color:var(--text-muted)}input[type=text],input[type=number],select,textarea{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:6px 10px;color:var(--text-primary);font-size:12px;font-family:var(--font-sans);transition:border-color var(--transition-fast)}input[type=text]:focus,input[type=number]:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent-primary)}input[type=number]{width:60px;text-align:right}input[type=color]{width:28px;height:28px;padding:0;border:2px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;background:none}input[type=color]::-webkit-color-swatch-wrapper{padding:2px}input[type=color]::-webkit-color-swatch{border-radius:2px;border:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:6px 12px;border:1px solid transparent;border-radius:var(--radius-sm);font-size:12px;font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-primary);color:var(--bg-primary)}.btn-primary:hover:not(:disabled){background:#00e8bb;transform:translateY(-1px)}.btn-secondary{background:var(--bg-tertiary);border-color:var(--border-color);color:var(--text-primary)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--border-light)}.btn-icon{padding:6px;background:transparent;border:none;color:var(--text-secondary);border-radius:var(--radius-sm)}.btn-icon:hover:not(:disabled){color:var(--text-primary);background:var(--bg-hover)}.btn-icon.active{color:var(--accent-primary);background:var(--bg-active)}.select-menu{position:relative}.select-menu select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:24px;min-width:110px}.select-menu:after{content:"";position:absolute;right:10px;top:50%;transform:translateY(-50%);width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:4px solid var(--text-secondary);pointer-events:none}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-lg);color:var(--text-muted);text-align:center}.empty-state svg{width:40px;height:40px;margin-bottom:var(--spacing-sm);opacity:.5}.empty-state p{font-size:12px}.toolbar{display:flex;align-items:center;gap:2px;padding:4px;background:var(--bg-tertiary);border-radius:var(--radius-md)}.toolbar-divider{width:1px;height:20px;background:var(--border-color);margin:0 4px}.gap-selector{display:flex;gap:4px}.gap-option{padding:4px 8px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:10px;cursor:pointer;background:var(--bg-tertiary);color:var(--text-secondary);transition:all var(--transition-fast)}.gap-option:hover{border-color:var(--accent-primary)}.gap-option.active{background:var(--accent-primary);color:var(--bg-primary);border-color:var(--accent-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--bg-active)}.settings-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000}.settings-panel{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:560px;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md);border-bottom:1px solid var(--border-color)}.settings-header h2{font-size:16px;font-weight:600;color:var(--text-primary)}.settings-header-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.settings-content{padding:var(--spacing-md);overflow-y:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-md)}.settings-section{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md)}.settings-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--accent-primary);margin-bottom:var(--spacing-sm);padding-bottom:var(--spacing-xs);border-bottom:1px solid var(--border-color)}.setting-item{display:flex;align-items:center;justify-content:space-between;padding:4px 0}.setting-label{font-size:12px;color:var(--text-secondary)}.setting-control{display:flex;align-items:center;gap:4px}.setting-control input[type=number]{width:56px;padding:4px 6px;font-size:11px;text-align:right}.setting-unit{font-size:10px;color:var(--text-muted);width:18px}.custom-icon-controls{margin-bottom:var(--spacing-sm);padding:0 4px;display:flex;flex-direction:column;gap:8px}.custom-icon-input{width:100%;padding:8px 10px;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-tertiary);color:var(--text-primary);font-size:12px;transition:all var(--transition-fast)}.custom-icon-input:focus{outline:none;border-color:var(--accent-primary);background:var(--bg-hover)}.custom-icon-input::placeholder{color:var(--text-muted)}.custom-icon-upload-btn{width:100%;padding:8px 10px;border-radius:var(--radius-sm);border:1px dashed var(--border-color);background:transparent;color:var(--text-secondary);font-size:12px;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:6px}.custom-icon-upload-btn:hover{background:var(--bg-hover);border-color:var(--text-secondary);color:var(--text-primary)}.custom-icon-upload-btn:active{background:var(--bg-active);transform:scale(.98)}.mobile-warning-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg)}.mobile-warning-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-xl);max-width:400px;width:100%;text-align:center;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mobile-warning-icon{color:var(--accent-primary);margin-bottom:var(--spacing-xs)}.mobile-warning-content h2{font-size:20px;font-weight:600;color:var(--text-primary)}.mobile-warning-content p{color:var(--text-secondary);font-size:14px;line-height:1.6;margin-bottom:var(--spacing-sm)}.mobile-warning-btn{background:var(--accent-primary);color:#000;border:none;border-radius:var(--radius-md);padding:12px 24px;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);width:100%}.mobile-warning-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}.mobile-warning-btn:active{transform:translateY(1px)}