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.form-group-hint{margin-bottom:0!important}.library-category-group{border:1px solid var(--border-color);border-radius:8px;padding:16px;margin-bottom:20px}.category-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.category-name-input{flex-grow:1;background:none;border:none;color:var(--primary-color);font-size:16px;font-weight:500;padding:4px 0;border-bottom:1px solid transparent}.category-name-input:focus{outline:none;border-bottom-color:var(--primary-color)}.library-edit-item{display:flex;align-items:center;gap:12px;margin-bottom:8px}.library-edit-item .abbr-input{width:80px;flex-shrink:0;text-align:center;font-family:Roboto Mono,monospace}.library-edit-item .name-input{flex-grow:1}.library-edit-item .hint-input{flex-grow:2}.library-edit-item input{flex-grow:1}.button-add-item,.button-add-category{background-color:transparent;border:1px dashed var(--border-color);color:var(--subtle-text-color);padding:8px 12px;border-radius:6px;cursor:pointer;transition:all .2s;font-size:14px;margin-top:12px}.button-add-item:hover,.button-add-category:hover{border-color:var(--primary-color);color:var(--primary-color)}.button-add-category{width:100%;padding:12px}.help-modal{max-width:800px;height:80vh;padding:0}.help-section{margin-bottom:24px}.help-section:last-child{margin-bottom:0}.help-section h3{font-size:18px;color:var(--primary-color);margin-bottom:12px;border-bottom:1px solid var(--border-color);padding-bottom:8px}.help-section p,.help-section li{font-size:14px;line-height:1.6;color:var(--text-color)}.help-section ul,.help-section ol{margin-top:12px;margin-left:20px;padding-left:10px}.help-section li{margin-bottom:8px}.help-section code{background-color:var(--background-color);padding:2px 6px;border-radius:4px;font-family:Roboto Mono,monospace;color:var(--selected-color);font-size:13px}.file-viewer-modal{max-width:800px;height:80vh;padding:0}.file-content-display{background-color:var(--background-color);padding:16px;border-radius:8px;border:1px solid var(--border-color);font-family:Roboto Mono,monospace;font-size:13px;white-space:pre-wrap;word-break:break-all;max-height:calc(80vh - 150px);overflow-y:auto}.log-panel{background-color:var(--surface-color);border-top:1px solid var(--border-color);flex-shrink:0;display:flex;flex-direction:column;transition:height .3s ease-in-out}.log-panel-resizer{width:100%;height:5px;background-color:transparent;cursor:row-resize;position:absolute;top:-2px;left:0;z-index:10}.log-panel-header{display:flex;justify-content:space-between;align-items:center;padding:0 16px;height:40px;cursor:pointer;-webkit-user-select:none;user-select:none;flex-shrink:0}.log-panel-header h3{font-size:14px;font-weight:500;color:var(--subtle-text-color)}.log-panel-header .chevron{width:10px;height:10px;border-style:solid;border-color:var(--subtle-text-color);border-width:0 2px 2px 0;transform:rotate(45deg);transition:transform .3s ease-in-out}.log-panel.open .log-panel-header .chevron{transform:rotate(-135deg)}.log-content{flex-grow:1;overflow-y:auto;padding:0 16px 16px;font-family:Roboto Mono,monospace;font-size:13px;background-color:var(--background-color)}.log-entry{padding:4px 0;display:flex;gap:12px;white-space:pre-wrap;border-bottom:1px solid var(--border-color)}.log-timestamp{color:var(--subtle-text-color)}.log-message{color:var(--text-color)}.log-entry-error .log-message{color:var(--error-color)}.log-entry-success .log-message{color:var(--success-color)}.log-details{margin-top:8px;padding:8px;background-color:#0003;border-radius:4px;color:var(--subtle-text-color);white-space:pre-wrap;word-break:break-all}.component-legend,.operation-principle{flex-shrink:0;background-color:var(--surface-color);border-top:1px solid var(--border-color)}.collapsible-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none;padding:12px 16px}.collapsible-header h4{font-size:14px;color:var(--subtle-text-color);margin:0}.collapsible-header .chevron{width:10px;height:10px;border-style:solid;border-color:var(--subtle-text-color);border-width:0 2px 2px 0;transform:rotate(45deg);transition:transform .3s ease-in-out}.component-legend.open .collapsible-header .chevron,.operation-principle.open .collapsible-header .chevron{transform:rotate(-135deg)}.collapsible-content{max-height:0;overflow-y:auto;transition:max-height .3s ease-out,padding-bottom .3s ease-out;padding:0 16px}.component-legend.open .collapsible-content{max-height:250px;padding-bottom:16px}.operation-principle.open .collapsible-content{max-height:400px;padding-bottom:16px}.operation-principle .collapsible-content h2,.operation-principle .collapsible-content h3,.operation-principle .collapsible-content h4{margin-top:1em;margin-bottom:.5em;color:var(--text-color)}.operation-principle .collapsible-content h3{font-size:1.1em;color:var(--primary-color);border-bottom:1px solid var(--border-color);padding-bottom:4px}.operation-principle .collapsible-content p{font-size:14px;line-height:1.6;margin-bottom:1em;word-wrap:break-word}.operation-principle .collapsible-content ul,.operation-principle .collapsible-content ol{margin-left:20px;margin-bottom:1em;padding-left:10px}.operation-principle .collapsible-content li{margin-bottom:.5em;line-height:1.5}.operation-principle .collapsible-content strong{color:var(--selected-color);font-weight:500}.operation-principle .collapsible-content em{color:var(--primary-color);font-style:italic}.component-legend ul{list-style:none;margin-bottom:16px;font-size:14px;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:4px 16px}.component-legend li{padding:2px 0;display:flex}.component-legend li strong{flex-shrink:0;width:60px;font-family:Roboto Mono,monospace;color:var(--primary-color)}.component-legend .copy-button,.operation-principle .copy-button{width:100%;max-width:300px;padding:8px;margin-top:1em}