.sheet-list-shell{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:20px 24px;}
  .sheet-list-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--border);font-size:14px;}
  .sheet-list-item:last-child{border-bottom:none;}
  .sheet-list-num{font-family:var(--mono);color:var(--amber);font-weight:700;flex-shrink:0;width:22px;}
  .sheet-list-date{font-family:var(--mono);color:var(--teal);font-size:11.5px;flex-shrink:0;width:80px;}
  .sheet-list-empty{color:var(--text-muted);font-size:13px;font-style:italic;}
  .sheet-list-loading{color:var(--text-muted);font-size:13px;}