.register__th{z-index:1;text-align:left;padding:var(--space-3);background:var(--color-surface);color:var(--color-text-dim);font-size:var(--text-xs);font-weight:var(--weight-semibold);text-transform:uppercase;letter-spacing:.03em;white-space:nowrap;border-bottom:1px solid var(--color-border);position:sticky;top:0}.register__th--sortable{cursor:pointer;-webkit-user-select:none;user-select:none}.register__th--sortable:hover{color:var(--color-text)}.register__th--num{text-align:right}@media (width<=1024px){.register__th{padding:var(--space-2)}}.is-resizable th.register__th{position:sticky;top:0}.ftable__th-sort{align-items:baseline;gap:var(--space-1);cursor:pointer;-webkit-user-select:none;user-select:none;background:0 0;border:none;padding:0;display:inline-flex}.ftable__th-label{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:.07em;text-transform:uppercase;color:var(--color-text-muted);transition:color var(--duration-fast)}.ftable__th-sort:hover .ftable__th-label{color:var(--color-text)}.ftable__th--num .ftable__th-sort{flex-direction:row-reverse}.ftable__th--sorted .ftable__th-label{color:var(--color-text)}.ftable__th-arrow{font-size:var(--text-2xs);color:var(--color-accent)}.ftable__th-filter{margin-left:var(--space-1);border-radius:var(--radius-sm);color:var(--color-text-dim);cursor:pointer;opacity:.4;transition:opacity var(--duration-fast), color var(--duration-fast);vertical-align:middle;background:0 0;border:none;padding:2px}.ftable__th:hover .ftable__th-filter{opacity:.8}.ftable__th-filter:hover{color:var(--color-text);opacity:1}.ftable__th-filter.is-active{opacity:1;color:var(--color-accent)}.ftable__th--filtered{color:var(--color-accent)}.ftable__filter-pop{top:var(--pop-top);left:var(--pop-left);z-index:var(--z-popover,1000);background:var(--color-surface);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-md);width:220px;max-height:320px;box-shadow:var(--shadow-lg);padding:var(--space-2);gap:var(--space-2);flex-direction:column;display:flex;position:fixed}.ftable__filter-head{font-size:var(--text-2xs);font-weight:var(--weight-semi);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted);justify-content:space-between;align-items:center;display:flex}.ftable__filter-clear{font-size:var(--text-2xs);font-weight:var(--weight-semi);color:var(--color-accent);cursor:pointer;text-transform:none;letter-spacing:0;background:0 0;border:none;padding:0}.ftable__filter-input{width:100%;padding:var(--space-1) var(--space-2);border:var(--border-width) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);color:var(--color-text);font-size:var(--text-sm)}.ftable__filter-list{flex-direction:column;gap:1px;display:flex;overflow-y:auto}.ftable__filter-opt{align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-1);border-radius:var(--radius-sm);font-size:var(--text-sm);color:var(--color-text);cursor:pointer;display:flex}.ftable__filter-opt:hover{background:var(--color-surface-hover)}.ftable__filter-opt input{cursor:pointer}.ftable__filter-empty{font-size:var(--text-xs);color:var(--color-text-dim);padding:var(--space-1)}