/* ============================================================
   sx-grid.css — 表格操作台（Excel 风格网格）专属样式
   20260917 自 app_pages_misc.js _sheetEnsureCss() 机器提取原样搬运（零改动）。
   20260908 表格操作台改版：Excel 风格网格——全网格线 + 14px 字体 + 表头吸顶
   + 键盘导航（Enter/方向键）+ 右键行列菜单（插删行列）+ 列宽拖拽
   ============================================================ */
/* 20260917 冻结修复：主题CSS的#pageContent table(overflow:hidden)会破坏sticky冻结列，用更高特异度兜底 */
/* B111 备注标签按钮 + 表尾合计行 */
/* 20260916 出勤表左右固定列：日期区横向滚动时，学员/教师信息和统计列始终可见 */
/* B113 A1 空行压实折叠缝 + A2 分组条 */
/* B115e G：缺必要信息课表行标红（浅红底+行号红底+悬浮原因；展示态不落库，数据一改自动更新） */
/* B115f 交接表：状态整行着色（未完成淡红 / 跟进中淡黄 / 已完成淡绿 / 已转交淡灰） */
/* B115g/B116 缴费角标：跟随名字右侧（left 按文字宽度动态），胶囊醒目，不挡输入 */
.sx-wrap{background:#fff;border:1px solid #c9d3e4;border-radius:8px;overflow:auto;height:540px;box-shadow:0 1px 3px rgba(16,24,40,.06);}.sx-wrap.sx-drag-scroll{cursor:grab;}table.sx-grid{border-collapse:separate;border-spacing:0;table-layout:fixed;display:table;width:auto;min-width:100%;font-size:14px;color:var(--text);overflow:visible;}#pageContent table.sx-grid{overflow:visible;}.sx-grid th{position:sticky;top:0;z-index:5;background:#eef2f8;border-right:1px solid #d7deea;border-bottom:1px solid #c9d3e4;padding:7px 9px;font-size:13px;font-weight:600;color:#3a4a63;text-align:left;user-select:none;overflow:hidden;white-space:nowrap;}.sx-grid th.sx-att{text-align:center;cursor:pointer;}.sx-grid th.sx-rn{left:0;z-index:6;text-align:center;width:46px;min-width:46px;max-width:46px;background:#e8edf5;cursor:context-menu;}.sx-grid td{border-right:1px solid #e3e8f1;border-bottom:1px solid #e3e8f1;padding:0;vertical-align:middle;background:#fff;}.sx-grid 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#c9d3e4;background:#f6f8fc;font-size:12px;cursor:pointer;color:#3a4a63;white-space:nowrap;}.sx-tagbtn:hover{background:#eaf2ff;border-color:var(--primary);color:var(--primary);}.sx-grid tfoot td{position:sticky;bottom:0;background:#eef2f8;border-top:2px solid #c9d3e4;border-right:1px solid #d7deea;padding:7px 9px;font-size:13px;color:#1d3557;}.sx-grid tfoot td.sx-rn{left:0;z-index:6;text-align:center;font-weight:700;color:#1d3557;background:#e8edf5;}.sx-grid th.sx-locked-left{position:-webkit-sticky;position:sticky !important;top:0;z-index:8;background:#e3ecf9;box-shadow:inset -1px 0 0 #c9d3e4;}.sx-grid th.sx-locked-right{position:-webkit-sticky;position:sticky !important;top:0;z-index:8;background:#e3ecf9;box-shadow:inset 1px 0 0 #c9d3e4;}.sx-grid td.sx-locked-left{position:-webkit-sticky;position:sticky !important;z-index:5;background:#fff;box-shadow:inset -1px 0 0 #d7deea;}.sx-grid td.sx-locked-right{position:-webkit-sticky;position:sticky 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