:root{
  --cream:#FAF9F6; --cream2:#F3F0E8; --card:#FFFFFF;
  --mint:#4FA88B; --mint-d:#2F7D66; --mint-l:#E3F1EA; --mint-xl:#F2F7F3;
  --ink:#263B33; --ink2:#61736B; --line:#E3E7DF;
  --amber:#B9822F; --amber-l:#FBF3E4; --gold:#C7A75E;
  --red:#C95353; --red-l:#FBE9E7;
  --yellow:#F3DFA9;
  --forest:#103C32; --forest-text:#E2EDE7; --forest-muted:#B6CFC4;
  --shadow:0 1px 2px rgba(38,59,51,.04),0 5px 16px rgba(38,59,51,.045);
  --shadow-up:0 2px 4px rgba(38,59,51,.05),0 10px 24px rgba(38,59,51,.08);
  --r:12px;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink); line-height:1.55;background:var(--cream);
}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(79,168,139,.32);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(79,168,139,.5)}
input:focus,select:focus,textarea:focus{box-shadow:0 0 0 3px rgba(79,168,139,.18)}
.quick .num,.subj-pct,.subj-cnt,.ci-acc,.acc-badge,.dash-ta-num,.rec-meta,.stu-nums,.dash-cat-row{font-variant-numeric:tabular-nums}
#app{display:flex;min-height:100vh;align-items:flex-start}
/* ---------- 深绿侧栏（桌面） ---------- */
#sidebar{
  width:184px;flex-shrink:0;background:var(--forest);color:var(--forest-text);border-right:1px solid #1D4B40;
  padding:18px 10px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:4px;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 18px;border-bottom:1px dashed var(--line);margin-bottom:12px}
.brand svg{width:34px;height:34px;flex-shrink:0;background:var(--mint-xl);border:1px solid var(--mint-l);border-radius:10px;padding:3px}
.brand b{font-size:15px;display:block}
.brand span{font-size:11px;color:var(--ink2)}
#sidebar .brand{gap:9px;padding:8px 6px 18px;border-bottom:1px solid rgba(226,237,231,.16);margin-bottom:12px}
#sidebar .brand b{color:#FFF;font-size:16px;letter-spacing:.5px}
#sidebar .brand span{color:var(--forest-muted);letter-spacing:.5px}
.nav-btn{
  display:flex;align-items:center;gap:10px;width:100%;padding:11px 12px;border:none;background:none;
  border-radius:8px;font-size:14px;color:var(--forest-text);cursor:pointer;text-align:left;min-height:46px;
  position:relative;transition:background .15s,color .15s;
}
.nav-btn svg{width:20px;height:20px;flex-shrink:0}
.nav-btn:hover{background:rgba(226,237,231,.08);color:#FFF}
.nav-btn.active{background:rgba(185,222,208,.17);color:#FFF;font-weight:600}
.nav-btn.active::before{
  content:'';position:absolute;left:-10px;top:8px;bottom:8px;width:4px;border-radius:0 999px 999px 0;background:#B9DED0;
}
.side-foot{margin-top:auto;font-size:10px;color:var(--forest-muted);line-height:1.7;padding:12px 6px 4px;border-top:1px solid rgba(226,237,231,.16)}
/* ---------- 自适应主工作面 ---------- */
main{flex:1;min-width:0;max-width:none;padding:16px 24px 72px;margin:0}
/* 工具页头：书本图标、当前页、真实日期与账户操作在实用高度内完成 */
.topbar{
  position:relative;isolation:isolate;overflow:hidden;
  display:flex;align-items:center;gap:16px;flex-wrap:nowrap;
  min-height:64px;padding:10px 18px;margin-bottom:14px;
  background:rgba(250,249,246,.94);border:1px solid var(--line);border-radius:var(--r);
}
.topbar::before{
  content:'';position:absolute;z-index:-1;pointer-events:none;opacity:.16;
  top:0;left:15%;width:min(70%,960px);height:100%;
  background:url("../assets/header-pages.svg") center top/100% auto no-repeat;
}
.tb-left{display:flex;align-items:center;gap:10px;min-width:0}
.tb-book{display:block;width:30px;height:26px;flex-shrink:0}
.topbar h1{font-size:21px;line-height:1.25;font-weight:650;white-space:nowrap}
.tb-date{font-size:12px;color:var(--ink2);white-space:nowrap}
/* 有限工作高度下隐藏温暖短句但保留 DOM；暖金竖线样式契约保留 */
.motto{
  display:none;position:absolute;right:28%;top:38%;margin:0;padding-left:16px;max-width:280px;
  border-left:3px solid var(--amber);font-size:14px;color:var(--ink2);line-height:1.6;
}
.sample-banner{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--amber-l);
  border:1px solid #F0D9AC;border-radius:12px;padding:12px 16px;margin-bottom:14px;font-size:14px;
}
.sample-banner svg{width:20px;height:20px;flex-shrink:0}
.sample-banner .spacer{flex:1}
.backup-tip{
  display:flex;align-items:center;gap:8px;background:var(--mint-l);border:1px solid #BFE3D4;
  border-radius:12px;padding:10px 14px;margin-bottom:14px;font-size:13px;color:var(--mint-d);
}
.backup-tip .bt-close{
  margin-left:auto;flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  background:none;border:none;color:var(--mint-d);opacity:.7;cursor:pointer;border-radius:6px;
}
.backup-tip .bt-close:hover{opacity:1;background:rgba(47,125,102,.12)}
.backup-tip .bt-close svg{width:13px;height:13px}
/* 细线、轻阴影与克制金色分节标识 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px 20px;margin-bottom:14px}
@media (hover:hover){
  .card:hover{box-shadow:var(--shadow-up)}
}
.card h2{position:relative;font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:14px;padding-left:12px}
.card h2::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:999px;background:var(--gold)}
.card h2 svg{width:20px;height:20px}
.card h3{font-size:15px;font-weight:600;margin:16px 0 10px}
/* 今日要处理 */
.todo-item{
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;margin-bottom:10px;
  background:var(--mint-xl);border:1px solid var(--line);flex-wrap:wrap;
}
.todo-item.overdue{background:var(--red-l);border-color:#F0C6C2}
.todo-item .grow{flex:1;min-width:160px}
.todo-item .who{font-weight:600}
.tag{display:inline-block;font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px;margin-left:6px;vertical-align:middle}
.tag.red{background:var(--red);color:#fff}
.tag.amber{background:var(--amber);color:#fff}
.tag.mint{background:var(--mint-d);color:#fff}
.tag.sample{background:#EFE7D2;color:#8A7B52;border:1px dashed #D8C89A}
/* 今日概览：未交作业分组卡片（按学生合并，框内分科目） */
.miss-group{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:10px 12px;margin-bottom:10px}
.miss-group-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px;padding-bottom:6px;border-bottom:1px dashed var(--line)}
.miss-group-head .grow{flex:1;min-width:120px}
.miss-group-head .who{font-weight:700;font-size:15px}
.miss-group-head .cnt{font-size:12px;font-weight:700;color:var(--red);margin-left:auto}
.miss-sub{margin-bottom:6px}
.miss-sub:last-child{margin-bottom:0}
.miss-sub-name{margin-bottom:4px}
.miss-sub-name .tag{margin-left:0}
.miss-group .todo-item{margin-bottom:5px;padding:6px 10px;gap:8px}
.miss-group .todo-item .grow{min-width:150px}
.miss-group .todo-item:last-child{margin-bottom:0}
.miss-group .idx-tag{display:inline-block;font-size:10px;font-weight:700;padding:1px 6px;border-radius:999px;background:var(--red-l);color:var(--red);margin-right:5px;vertical-align:middle}
.miss-group .miss-date{font-size:12px;color:var(--ink2);margin-left:6px;vertical-align:middle}
.empty-ok{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--mint-d);font-weight:600;padding:14px 2px}
.empty-ok svg{width:26px;height:26px}
/* 今日任务中心：固定分段、独立筛选和当前页渲染 */
.today-segments{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.today-seg{
  min-height:40px;padding:7px 15px;border:1px solid var(--line);border-radius:9px;background:var(--card);
  color:var(--ink2);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;
}
.today-seg:hover{background:var(--mint-xl);border-color:#B9DED0}
.today-seg.active{background:var(--mint-l);border-color:var(--mint);color:var(--mint-d)}
.today-grp{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--card);overflow:hidden}
.today-grp-head{display:flex;align-items:center;gap:8px;padding:10px 14px;user-select:none;min-height:44px}
.today-grp-head .chev{color:var(--mint-d);font-size:12px;width:14px;flex-shrink:0}
.today-grp-head .grp-sub{font-size:12px;font-weight:400;color:var(--ink2)}
.today-grp-head .cnt{margin-left:auto;font-size:12px;font-weight:700;color:var(--ink2);white-space:nowrap}
.today-grp-body{padding:0 10px 10px}
.today-filter{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:2px 0 12px}
.today-filter select,.today-filter input,.today-pager select{
  min-height:40px;padding:8px 10px;border:1.5px solid var(--line);border-radius:9px;background:#FDFCF8;
  color:var(--ink);font-family:inherit;font-size:13px;
}
.today-filter select:focus,.today-filter input:focus,.today-pager select:focus{outline:none;border-color:var(--mint)}
.today-owner{flex:0 1 220px;min-width:150px}
/* 今日概览：助教异常统计默认可见，局部样式不影响其他筛选控件 */
.today-owner-summary{margin:0 0 12px;padding:10px;background:var(--mint-xl);border:1px solid var(--line);border-radius:10px}
.today-owner-summary-title{margin-bottom:8px;font-size:12px;color:var(--ink2)}
.today-owner-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:8px}
.today-owner-stat{display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0;min-height:40px;padding:8px 10px;border:1.5px solid var(--line);border-radius:9px;background:var(--card);color:var(--ink);font:inherit;font-size:13px;text-align:left;cursor:pointer}
.today-owner-stat:hover{border-color:var(--mint);background:#fff}
.today-owner-stat:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.today-owner-stat.active{border-color:var(--mint);background:var(--mint-l);color:var(--mint-d);font-weight:700}
.today-owner-stat.zero{opacity:.58}
.today-owner-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.today-owner-count{flex-shrink:0;font-variant-numeric:tabular-nums;font-weight:700}
.today-filter-summary{flex:1 1 100%;font-size:12px;color:var(--ink2);font-variant-numeric:tabular-nums}
.today-search{flex:1 1 240px;min-width:180px;width:auto}
.today-filter .btn{flex-shrink:0}
.today-pager{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap;padding-top:10px;border-top:1px solid var(--line);font-size:12px;color:var(--ink2)}
.today-pager label{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.today-pager select{min-height:36px;padding:5px 7px}
.today-pager .pager-meta{margin-right:auto;font-variant-numeric:tabular-nums}
.today-pager .pager-page{white-space:nowrap;font-variant-numeric:tabular-nums}
.today-pager .btn{min-height:36px;padding:6px 11px}
.today-pager .btn:disabled{opacity:.45;cursor:not-allowed}
.today-empty{padding:22px 12px;text-align:center;color:var(--ink2);font-size:13px;background:var(--mint-xl);border-radius:10px;margin-bottom:10px}
.done-filter{padding-top:4px}
.done-pager{margin-top:10px}
/* 快捷统计 */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.quick{
  background:var(--mint-xl);border:1px solid var(--line);border-radius:14px;padding:14px;text-align:center;
}
.quick .num{font-size:24px;font-weight:700;color:var(--mint-d)}
.quick .lbl{font-size:12px;color:var(--ink2);margin-top:2px}
/* 表单 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--ink2)}
.field input,.field select{
  font-size:16px;padding:10px 14px;border:1.5px solid var(--line);border-radius:12px;background:#FDFCF8;
  color:var(--ink);min-height:40px;width:100%;font-family:inherit;  /* 控件统一 40px 基准 */
}
.field input:focus,.field select:focus{outline:none;border-color:var(--mint)}
/* 密码框右侧明文切换（登录页）：默认密文，点击眼睛图标切换 */
.pwd-wrap{position:relative}
.pwd-wrap input{padding-right:46px}
.pwd-eye{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  background:none;border:none;color:var(--ink2);cursor:pointer;border-radius:8px;
}
.pwd-eye:hover{color:var(--mint-d)}
.pwd-eye svg{width:19px;height:19px}
.pwd-eye .eye-closed{display:none}
.pwd-eye.on .eye-closed{display:block}
.pwd-eye.on .eye-open{display:none}
.calc-preview{
  grid-column:1/-1;display:flex;gap:18px;flex-wrap:wrap;background:var(--cream);border-radius:12px;
  padding:12px 16px;font-size:14px;
}
.calc-preview b{color:var(--mint-d)}
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;
  border-radius:12px;font-size:14px;padding:9px 16px;min-height:40px;font-weight:600;font-family:inherit;  /* 控件统一 40px 基准 */
  transition:transform .1s,box-shadow .15s,background .15s,border-color .15s;
}
.btn:active{transform:scale(.98)}  /* 按下微缩反馈 */
.btn svg{width:16px;height:16px}
.btn.mint{background:var(--mint-d);color:#fff;box-shadow:0 2px 6px rgba(47,125,102,.18)}
.btn.mint:hover{background:#276B56;box-shadow:0 3px 10px rgba(47,125,102,.24)}
.btn.ghost{background:var(--card);border:1.5px solid var(--line);color:var(--ink)}
.btn.ghost:hover{background:var(--mint-xl);border-color:#B9DED0}
.btn.danger{background:var(--red-l);color:var(--red);border:1px solid #F0C6C2}
.btn.danger:hover{background:#F8E0DD}
.btn.sm{min-height:38px;padding:7px 14px;font-size:13px;border-radius:10px}
.btn.big{width:100%;font-size:16px;padding:14px}
/* 图片上传 */
.img-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.img-thumb{
  width:72px;height:72px;border-radius:10px;object-fit:cover;border:1px solid var(--line);cursor:pointer;position:relative;
}
.img-wrap{position:relative}
.img-wrap .del{
  position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:50%;background:var(--red);color:#fff;
  border:none;font-size:12px;cursor:pointer;line-height:1;
}
.dropzone{
  border:2px dashed #C9BFA4;border-radius:14px;background:#FDFCF8;padding:22px 16px;text-align:center;
  cursor:pointer;color:var(--ink2);font-size:14px;transition:all .15s;min-height:96px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
}
.dropzone svg{width:30px;height:30px}
.dropzone.over{border-color:var(--mint);background:var(--mint-xl);color:var(--mint-d)}
.dropzone b{color:var(--mint-d)}
.dropzone .types{font-size:12px;color:#A89B7E}
.pdf-thumb{
  width:72px;height:72px;border-radius:10px;border:1px solid var(--line);background:var(--red-l);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;cursor:pointer;
  color:var(--red);font-size:10px;font-weight:700;padding:4px;text-align:center;word-break:break-all;overflow:hidden;
}
.pdf-thumb svg{width:22px;height:22px;flex-shrink:0}
/* 记录列表 */
.rec-card{
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:12px;background:#FDFCF8;
}
.rec-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.rec-head .who{font-weight:700;font-size:15px}
.rec-head .when{font-size:13px;color:var(--ink2)}
.rec-head .grow{flex:1}
.acc-badge{
  font-weight:700;font-size:14px;padding:4px 12px;border-radius:999px;
}
.acc-good{background:var(--mint-l);color:var(--mint-d)}
.acc-mid{background:var(--amber-l);color:#B9802A}
.acc-low{background:var(--red-l);color:var(--red)}
.rec-meta{font-size:14px;color:var(--ink2);display:flex;gap:14px;flex-wrap:wrap}
.rec-meta b{color:var(--ink)}
.wrong-chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.wchip{
  background:var(--red-l);color:var(--red);font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
}
.rec-actions{display:flex;gap:8px;margin-top:10px}
/* 历史记录分组折叠 */
.rec-group{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:#FDFCF8;overflow:hidden}
.rec-group summary{
  display:flex;align-items:center;gap:10px;padding:12px 16px;cursor:pointer;font-weight:700;
  font-size:15px;list-style:none;user-select:none;min-height:48px;flex-wrap:wrap;
}
.rec-group summary::-webkit-details-marker{display:none}
.rec-group summary .g-avatar{
  width:32px;height:32px;border-radius:50%;background:var(--mint-l);color:var(--mint-d);
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.rec-group summary .g-meta{font-weight:400;font-size:12px;color:var(--ink2)}
.rec-group summary .chev{margin-left:auto;width:18px;height:18px;transition:transform .15s;flex-shrink:0;color:var(--ink2)}
.rec-group[open] summary .chev{transform:rotate(180deg)}
.rec-group .g-body{padding:2px 14px 14px}
/* 统计 */
.stu-card{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:10px;background:#FDFCF8}  /* 紧凑化 */
.stu-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.stu-head .avatar{
  width:42px;height:42px;border-radius:50%;background:var(--mint-l);color:var(--mint-d);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;
}
.stu-head .grow{flex:1}
.stu-ta-select-label{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:12px;color:var(--ink2)}
.stu-ta-select-label select{min-height:40px;max-width:280px;flex:1;padding:8px 10px;border:1.5px solid var(--line);border-radius:9px;background:#FDFCF8;color:var(--ink);font-family:inherit;font-size:13px}
.stu-split{display:grid;grid-template-columns:286px minmax(0,1fr);gap:16px;align-items:start}
#stu-rows,#stu-workspace{min-width:0}
.stu-row{
  display:flex;align-items:center;gap:10px;width:100%;min-height:72px;padding:10px 11px;margin-bottom:7px;
  border:1px solid var(--line);border-radius:10px;background:#FDFCF8;color:var(--ink);font-family:inherit;text-align:left;cursor:pointer;
}
.stu-row:hover{border-color:#B9DED0;background:var(--mint-xl)}
.stu-row.active{border-color:var(--mint);background:var(--mint-l);box-shadow:inset 3px 0 0 var(--mint-d)}
.stu-row-avatar{display:flex;align-items:center;justify-content:center;flex:0 0 36px;width:36px;height:36px;border-radius:50%;background:var(--mint-l);color:var(--mint-d);font-weight:700}
.stu-row-main{flex:1;min-width:0}
.stu-row-main>b{display:block;font-size:15px;line-height:1.4;overflow-wrap:anywhere}
.stu-row-meta{display:block;margin-top:2px;font-size:11px;line-height:1.45;color:var(--ink2);overflow-wrap:anywhere}
.stu-row-go{flex-shrink:0;color:var(--mint-d);font-size:18px}
.stu-workspace-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:180px;padding:24px;border:1.5px dashed #BFE3D4;border-radius:12px;background:var(--mint-xl);text-align:center;color:var(--ink2)}
.stu-workspace-empty b{color:var(--mint-d);font-size:17px}
.stu-workspace-empty p{max-width:360px;margin-top:8px;font-size:13px}
.stu-workspace .stu-card{margin-bottom:0}
.stu-workspace .stu-head .grow,.stu-workspace .qe-title{min-width:0;overflow-wrap:anywhere}
.stu-workspace .sub-chip{max-width:100%;height:auto}
.stu-workspace .sub-chip .sub-name{white-space:normal;overflow-wrap:anywhere}
@media (max-width:1000px){
  .stu-split{grid-template-columns:1fr}
  .stu-workspace-empty{min-height:120px}
}
.stu-nums{display:flex;gap:20px;flex-wrap:wrap;margin-top:12px;font-size:14px;color:var(--ink2);align-items:baseline}
.stu-nums b{color:var(--ink);font-size:16px}
/* 学生卡「最近录入」：弱色小字纯文本，无徽章底色（不抢视觉焦点），与统计行基线对齐 */
.stu-nums .last-rec{font-size:12px;color:var(--ink2);opacity:.75}
.missed-list{font-size:13px;color:var(--red);margin-top:6px}
/* 分科目正确率徽章 */
.sub-acc{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.sub-chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--mint-xl);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;
}
.sub-chip .sub-name{font-weight:600}
.sub-chip .sub-cnt{font-size:11px;color:var(--ink2)}
/* 逾期未交≥2次时科目名后的红色感叹号 */
.sub-alert{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:15px;height:15px;padding:0 3px;border-radius:50%;
  background:var(--red);color:#fff;font-size:11px;font-weight:800;line-height:1;
  margin-left:1px;box-shadow:0 1px 3px rgba(222,107,107,.5);
}
/* 各科目平均正确率：横向条形列表（flex gap 统一行距，避免 margin 折叠导致间距不一致；表头禁止折行） */
.chart-wrap{display:flex;flex-direction:column;gap:10px}
.subj-cat{font-size:13px;font-weight:700;color:var(--mint-d);margin:6px 0 0;white-space:nowrap;line-height:1.4}
.subj-cat:first-child{margin-top:0}
.subj-row{display:flex;align-items:center;gap:12px}
.chart-wrap > .hint{margin:0}
.subj-name{
  flex:0 0 132px;font-size:13px;font-weight:600;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;
}
.subj-bar{flex:1;background:var(--mint-xl);border-radius:999px;height:26px;position:relative;overflow:hidden}
.subj-bar::after{content:'';position:absolute;left:60%;top:0;bottom:0;border-left:1.5px dashed #F0C6C2}
.subj-fill{height:100%;border-radius:999px;min-width:2px}
.subj-pct{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:12px;font-weight:700;color:var(--ink);
}
.subj-cnt{flex:0 0 46px;text-align:right;font-size:12px;color:var(--ink2)}
/* 可点击的学生姓名 */
.stu-name-link{cursor:pointer;color:var(--mint-d);border-bottom:1.5px dashed #BFE3D4;padding-bottom:1px}
.stu-name-link:hover{color:var(--mint)}
/* 科目徽章作为 Tab + 卡内快速录入 */
.sub-chip{cursor:pointer;user-select:none;transition:border-color .15s,transform .15s,background .15s}
.sub-chip:hover{border-color:var(--mint);transform:translateY(-1px)}
.sub-chip.active{outline:2px solid var(--mint);background:var(--mint-l)}
.qe-panel{margin-top:12px;border:1.5px dashed #BFE3D4;border-radius:14px;padding:14px;background:var(--mint-xl)}
.qe-title{font-size:14px;font-weight:700;color:var(--mint-d);margin-bottom:10px}
/* 面板标题吸顶：按实际筛选区高度偏移，保留学生名+科目且不与搜索区互挡 */
.qe-title-sticky{position:sticky;top:calc(var(--stu-filter-height,88px) + 8px);z-index:10;background:var(--mint-xl);margin:-6px -6px 6px;padding:6px;border-radius:8px}
.qe-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.qe-grid input{
  font-size:16px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;
  background:#fff;min-height:44px;width:100%;font-family:inherit;color:var(--ink);
}
.qe-grid input:focus{outline:none;border-color:var(--mint)}
.qe-calc{grid-column:1/-1;font-size:13px;color:var(--ink2)}
.qe-calc b{color:var(--mint-d)}
.qe-full{grid-column:1/-1}
.qe-grid .btn{min-height:44px}
/* 应完成次数 + 作业打卡格子（合并作业录入与详细记录） */
.plan-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.plan-row input{
  font-size:16px;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;
  background:#fff;min-height:44px;width:110px;font-family:inherit;color:var(--ink);
}
.plan-row input:focus{outline:none;border-color:var(--mint)}
.plan-hint{font-size:12px;color:var(--ink2)}
.ci-title{font-size:13px;font-weight:700;color:var(--mint-d);margin:2px 0 8px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
/* 生成报告：离屏渲染区（html2canvas 截图用）+ 打印兜底 */
#reportArea{position:fixed;left:-20000px;top:0;width:794px;background:#fff;z-index:-1}
@media print{
  body > *:not(#reportArea){display:none !important}
  #reportArea{position:static !important;width:auto !important;box-shadow:none !important;background:#fff}
}
.ci-grid{display:flex;flex-wrap:wrap;gap:8px}
.ci-slot{
  flex:0 0 108px;border-radius:12px;padding:8px 10px;font-size:12px;cursor:pointer;
  border:1.5px solid var(--line);background:#fff;user-select:none;
  transition:border-color .15s,transform .1s,background .15s,box-shadow .15s;line-height:1.5;
}
.ci-slot:hover{border-color:var(--mint);transform:translateY(-1px);box-shadow:0 3px 10px rgba(62,90,78,.1)}
.ci-slot .ci-top{display:flex;align-items:center;gap:5px}
.ci-idx{font-weight:700;color:var(--ink)}
.ci-mark{font-size:15px;font-weight:900;line-height:1}
.ci-slot.done{border-color:#BFE3D4;background:var(--mint-xl)}
.ci-slot.done .ci-mark{color:var(--mint-d)}
.ci-slot.miss{border-color:#F0C6C2;background:#FDF3F2}
.ci-slot.miss .ci-mark{color:var(--red)}
.ci-slot.todo{border-color:#D5DDE5;background:#F4F7F9}
.ci-slot.todo .ci-acc{color:var(--ink2)!important}
/* 无作业格子（第四次态）：中性灰蓝，不参与正确率统计；标记「无作业」+ 日期，不显示百分比与错题 */
.ci-slot.nohw{border-color:#D5DDE5;background:#F4F7F9}
.ci-slot.nohw .ci-mark{color:#7A8CA0;font-size:12px}
.ci-date{color:var(--ink2);font-size:11px}
.ci-acc{font-weight:800;font-size:13px;color:var(--mint-d)}
.ci-acc.mid{color:#B9802A}
.ci-acc.bad{color:var(--red)}
.ci-wrongs{color:var(--ink2);font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slot-edit{margin-top:10px;border:1.5px solid var(--mint);border-radius:12px;padding:12px;background:#fff}
.slot-edit .se-title{font-size:13px;font-weight:700;color:var(--mint-d);margin-bottom:8px}
.slot-edit .se-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.slot-edit input{
  font-size:15px;padding:9px 11px;border:1.5px solid var(--line);border-radius:10px;
  background:#fff;min-height:42px;width:100%;font-family:inherit;color:var(--ink);
}
.slot-edit input:focus{outline:none;border-color:var(--mint)}
.slot-edit .se-full{grid-column:1/-1}
.slot-edit .se-field{display:flex;flex-direction:column;gap:3px;min-width:0}
.slot-edit .se-field input{height:42px;min-height:42px}
.slot-edit .se-field>span{font-size:12px;font-weight:600;color:var(--ink2)}
.slot-edit .se-err{grid-column:1/-1;font-size:12px;color:var(--red);font-weight:600;margin-top:2px}
.slot-edit .se-actions{display:flex;align-items:center;gap:8px;margin-top:10px;flex-wrap:wrap}
@media (min-width:769px){
  .slot-edit .se-actions{position:sticky;bottom:8px;z-index:12;background:#fff;border-top:1px solid var(--line);padding:8px 0;box-shadow:0 -6px 12px rgba(26,53,45,.06)}
}
.slot-edit .se-calc{margin-top:5px;font-size:12px;color:var(--ink2)}
/* 老师评语（科目级） */
.qe-comment{margin-top:12px;border-top:1.5px dashed #BFE3D4;padding-top:12px}
.qe-comment textarea{
  width:100%;min-height:64px;font-size:14px;padding:10px 12px;border:1.5px solid var(--line);
  border-radius:10px;background:#fff;font-family:inherit;color:var(--ink);resize:vertical;line-height:1.5;
}
.qe-comment textarea:focus{outline:none;border-color:var(--mint)}
.qe-comment-actions{display:flex;align-items:center;gap:10px;margin-top:8px}
.qe-saved-tip{font-size:12px;color:var(--mint-d);font-weight:600}
/* 保存状态四态（v1.8.2 UI-01）：未保存/保存中/已保存（时间）/保存失败可重试 */
.qe-save-st{font-size:12px;font-weight:600}
.qe-save-st.dirty{color:#B9802A}
.qe-save-st.saving{color:var(--ink2)}
.qe-save-st.saved{color:var(--mint-d)}
.qe-save-st.fail{color:var(--red)}
.sub-cmt-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);flex-shrink:0}
/* 模考预约与分数 */
.qe-mock{margin-top:12px;border-top:1.5px dashed #BFE3D4;padding-top:12px}
.mock-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:6px}
.mock-row input[type=date],.mock-row input[type=number],.mock-row .btn{
  font-size:14px;padding:8px 10px;border:1.5px solid var(--line);border-radius:10px;
  background:#fff;font-family:inherit;color:var(--ink);height:40px;min-height:40px;
}
.mock-row .btn{background:var(--mint-d);color:#fff;border-color:var(--mint-d)}
.mock-row .btn.ghost{background:var(--card);color:var(--ink);border-color:var(--line)}
.mock-row .btn.danger{background:var(--red-l);color:var(--red);border-color:#F0C6C2}
.mock-row input:focus{outline:none;border-color:var(--mint)}
.mock-booked{
  display:inline-flex;align-items:center;gap:6px;background:var(--mint-l);color:var(--mint-d);
  font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;border:1px solid #BFE3D4;
}
.mock-score-shown{font-size:14px;color:var(--ink)}
.mock-score-shown b{color:#B9802A;font-size:19px;margin:0 2px}
/* 「已绑定家长」弹窗：满 2 名家长上限提示（未满员时此处为「+ 绑定新家长」入口） */
.bind-limit-tip{background:#FDF3E3;border:1px solid #F0DCB4;color:#8A6420;font-size:13px;line-height:1.6;padding:8px 12px;border-radius:10px}
.mock-tag{display:inline-block;font-size:11px;font-weight:700;padding:2px 7px;border-radius:999px;line-height:1.5}
.mock-tag.booked{background:var(--amber-l);color:#B9802A;border:1px solid #F0D9AC}
.mock-tag.score{background:var(--mint-l);color:var(--mint-d);border:1px solid #BFE3D4}
/* 学生明细筛选区 sticky（搜索框 + 首字母条常驻顶部；背景不透明防透视；z-index 低于弹窗 300） */
#stu-filter-card{position:sticky;top:0;z-index:20;background:var(--card);padding:10px 14px}
.stu-filter-row{display:grid;grid-template-columns:minmax(220px,1fr) minmax(170px,260px) auto;gap:8px;align-items:center}
.stu-filter-row .search-box input{min-height:40px;padding:8px 10px;font-size:14px}
.stu-filter-row .stu-ta-select-label{margin-top:0;gap:6px;white-space:nowrap}
.stu-filter-row .stu-ta-select-label select{min-height:40px;width:100%;max-width:none;font-size:13px}
#stu-letter-bar{min-width:0;overflow:hidden}
#stu-letter-bar .letter-bar{margin-top:0;padding:0;max-width:100%}
#stu-filter-meta{grid-column:1/-1;min-width:0}
#stu-filter-meta:empty,#alumni-filter-meta:empty{display:none}
#alumni-filter-meta{min-width:0;margin-top:8px;font-size:13px}
/* 历史筛选桌面紧凑网格：搜索/助教/归档范围一行，字母与摘要自然换行 */
.alumni-filter-card{display:grid;grid-template-columns:minmax(220px,1fr) minmax(170px,240px) auto;gap:8px 12px;align-items:center}
.alumni-filter-card .search-box{margin:0;min-width:0}
.alumni-filter-card .search-box input{min-height:40px;padding:8px 10px;font-size:14px}
.alumni-filter-card #alumni-ta-filter{min-width:0}
.alumni-filter-card .stu-ta-select-label{display:flex;align-items:center;gap:6px;margin-top:0;white-space:nowrap}
.alumni-filter-card .stu-ta-select-label select{min-height:40px;width:100%;max-width:none;font-size:13px}
.alumni-filter-card .alumni-range-filter{margin-top:0!important;display:flex;gap:8px;white-space:nowrap}
.alumni-filter-card #alumni-letter-bar{grid-column:1/-1;min-width:0}
.alumni-filter-card #alumni-letter-bar .letter-bar{margin-top:0;padding:0}
.alumni-filter-card #alumni-filter-meta{grid-column:1/-1;margin-top:0}
@media(max-width:768px){
  .alumni-filter-card{grid-template-columns:1fr}
  .alumni-filter-card .alumni-range-filter{white-space:normal;flex-wrap:wrap}
  .alumni-filter-card #alumni-letter-bar,.alumni-filter-card #alumni-filter-meta{grid-column:1}
  .alumni-filter-card .search-box input,.alumni-filter-card .stu-ta-select-label select{min-height:50px}
}
@media (max-width:1100px){
  .stu-filter-row{grid-template-columns:minmax(0,1fr) minmax(150px,220px)}
  #stu-letter-bar{grid-column:1/-1}
}
@media (max-width:768px){
  .stu-filter-row{grid-template-columns:1fr}
  #stu-letter-bar,#stu-filter-meta{grid-column:1}
  .stu-filter-row .search-box input,.stu-filter-row .stu-ta-select-label select{min-height:50px}
}
/* 模考预约已过期（灰色）：徽章与打卡面板共用 */
.mock-tag.expired{background:#EFEAE0;color:#9A9280;border:1px solid #DCD4C2}
.mock-booked.expired{background:#EFEAE0;color:#9A9280;border-color:#DCD4C2}
/* 模考输入框固定左侧 label（不再只有 placeholder） */
.mock-lbl{font-size:13px;color:var(--ink2);font-weight:600;white-space:nowrap;align-self:center}
/* 教务管理页危险操作区：红框独立卡片（不可恢复操作集中） */
.danger-card{border-color:#F0C6C2;background:#FFFDFB}
.danger-card h2{color:var(--red)}
/* 新增科目面板 */
.add-subj-panel{margin-top:10px;border:1.5px dashed #BFE3D4;border-radius:14px;padding:14px;background:var(--mint-xl)}
.add-subj-title{font-size:13px;font-weight:700;color:var(--mint-d);margin-bottom:8px}
/* 科目重命名：徽章内 ✎ 图标 + 内联编辑框 */
.sub-chip .edit-ico{
  cursor:pointer;font-size:12px;color:var(--ink2);opacity:.5;padding:1px 2px;line-height:1;
  border-radius:6px;user-select:none;
}
.sub-chip .edit-ico:hover{opacity:1;color:var(--mint-d);background:var(--mint-l)}
.chip-edit{
  display:inline-flex;align-items:center;gap:8px;background:#fff;
  border:1.5px solid var(--mint);border-radius:12px;padding:5px 10px;font-size:13px;
}
.chip-edit input{
  font-size:13px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;
  min-width:220px;font-family:inherit;color:var(--ink);
}
.chip-edit input:focus{outline:none;border-color:var(--mint)}
.chart-wrap{overflow-x:auto}
/* 搜索框 */
.search-box{display:flex;align-items:center;gap:10px}
.search-box svg{width:20px;height:20px;flex-shrink:0;color:var(--ink2)}
.search-box input{
  flex:1;font-size:16px;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;
  background:#FDFCF8;min-height:48px;font-family:inherit;color:var(--ink);
}
.search-box input:focus{outline:none;border-color:var(--mint)}
/* 首字母筛选条：A–Z + # 横排可横滚（沿用 sub-chip 风格），有选中时末尾「清除筛选」 */
.letter-bar{display:flex;gap:6px;overflow-x:auto;padding:2px 2px 6px;margin-top:10px}
.letter-bar .sub-chip{flex-shrink:0;min-width:30px;justify-content:center;padding:5px 0;text-align:center;font-weight:600}
.letter-bar .letter-clear{min-width:0;padding:5px 12px;color:var(--red);border-color:#F0C6C2}
/* 三级联动科目 */
.subject-row{display:flex;gap:10px;flex-wrap:wrap}
.subject-row select,.subject-row input{flex:1;min-width:130px}
/* 学生详细记录折叠 */
.stu-detail{margin-top:12px;border-top:1px dashed var(--line);padding-top:10px}
.stu-detail summary{
  cursor:pointer;font-size:13px;font-weight:600;color:var(--mint-d);list-style:none;
  display:flex;align-items:center;gap:6px;min-height:44px;
}
.stu-detail summary::-webkit-details-marker{display:none}
.stu-detail summary::before{content:'▸';display:inline-block;transition:transform .15s;color:var(--mint)}
.stu-detail[open] summary::before{transform:rotate(90deg)}
.d-item{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 12px;margin-bottom:8px;
  background:var(--mint-xl);border:1px solid var(--line);border-radius:10px;font-size:13px;
}
.d-item .d-date{font-weight:600;min-width:92px}
.d-item .d-meta{color:var(--ink2)}
/* 底部 Tab（手机） */
#bottombar{
  display:none;position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:50;
}
#bottombar .tabs{display:flex}
#bottombar .tab-btn{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;border:none;background:none;
  padding:8px 0;font-size:11px;color:var(--ink2);cursor:pointer;min-height:50px;border-radius:10px;
}
#bottombar .tab-btn svg{width:22px;height:22px}
#bottombar .tab-btn.active{color:var(--mint-d);font-weight:700}
/* 弹窗（z-index 需高于登录屏 #login-screen 的 200，否则首登强制改密弹窗会被登录屏盖住） */
.modal-mask{
  display:none;position:fixed;inset:0;background:rgba(40,50,45,.5);z-index:300;
  align-items:center;justify-content:center;padding:20px;
}
.modal-mask.show{display:flex}
/* 确认弹窗是最高决策层：z-index 400 高于一切业务弹窗（300），
   否则绑定管理等弹窗内的「解绑」二次确认会被压在下面点不到（已踩过）；
   输入弹窗同理（绑定管理弹窗内的「备注」输入框也会被压，已踩过） */
#confirm-modal,#input-modal{z-index:400}
.modal{background:var(--card);border-radius:18px;padding:24px;max-width:420px;width:100%;box-shadow:0 12px 40px rgba(0,0,0,.2)}
.modal h3{font-size:16px;margin-bottom:10px}
#cf-text{white-space:pre-line}
#cf-ok:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.modal p{font-size:14px;color:var(--ink2);margin-bottom:18px}
.modal .row{display:flex;gap:10px;justify-content:flex-end}
#img-modal img{max-width:100%;max-height:80vh;border-radius:12px;display:block;margin:0 auto}
/* 报告预览弹窗：宽版 modal + A4 白底可滚动预览区（块级 + margin:auto，避免 flex 居中裁切左缘） */
.report-modal{max-width:860px}
.report-preview{
  max-height:62vh;overflow:auto;background:#E9E2D0;border-radius:12px;padding:16px;
  margin-bottom:16px;
}
.report-preview > div{box-shadow:0 4px 18px rgba(62,90,78,.18);margin:0 auto}
/* 产品内 toast（替代浏览器原生 alert）：顶部居中白底卡片，3 秒自动消失，多条依次向下堆叠；
   z-index 高于弹窗（300）；支持 \n 多行（pre-line）；移动端宽度自适应 */
#toast-zone{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:400;pointer-events:none;
  display:flex;flex-direction:column;align-items:center;gap:8px;max-width:calc(100vw - 32px);
}
.toast{
  display:flex;align-items:flex-start;gap:8px;background:var(--card);border:1px solid var(--line);
  border-radius:12px;box-shadow:0 8px 28px rgba(62,90,78,.18);padding:11px 16px;
  font-size:14px;color:var(--ink);line-height:1.5;white-space:pre-line;text-align:left;
  max-width:min(420px, calc(100vw - 32px));animation:toast-in .18s ease-out;
  transition:opacity .25s,transform .25s;
}
.toast::before{
  content:'✓';flex-shrink:0;width:18px;height:18px;border-radius:50%;margin-top:1px;
  background:var(--mint-d);color:#fff;font-size:12px;font-weight:700;line-height:18px;text-align:center;
}
.toast.out{opacity:0;transform:translateY(-6px)}
@keyframes toast-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
/* 页签 */
.tab-pane{display:none}
.tab-pane.active{display:block}
.hint{font-size:12px;color:var(--ink2);margin-top:8px}
.divider{height:1px;background:var(--line);margin:16px 0}
/* 科目管理树编辑（仅教务，数据管理页）：一级为分区卡片（标题行右侧操作按钮，与二级系列行同款排布），
   二级一行一个系列（名居左按钮居右），三级标签流 */
.st-cat{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:12px;background:#FDFCF8}
/* 微信自动推送开关（教务管理页）：薄荷绿 toggle */
.push-cfg-row{display:flex;align-items:center;gap:10px;padding:10px 2px;border-bottom:1px dashed var(--line);font-size:14px}
.push-cfg-row:last-child{border-bottom:none}
.push-cfg-row > span:first-child{flex:1}
.push-cfg-row small{color:var(--ink2);font-weight:400}
/* 每类型限流步进器（1–10 次/10 分钟） */
.push-max{flex:0 0 auto;display:inline-flex;align-items:center;gap:6px}
.push-max-btn{width:26px;height:26px;border-radius:8px;border:1.5px solid var(--line);background:#FDFCF8;color:var(--ink);cursor:pointer;font-size:14px;line-height:1;padding:0}
.push-max-btn:hover{border-color:var(--mint);color:var(--mint-d)}
.push-max-num{font-weight:700;min-width:16px;text-align:center;font-variant-numeric:tabular-nums}
.push-max-unit{font-size:11px;color:var(--ink2);margin-right:6px}
/* 通知投递结果：只读列表，失败项可就近定位学生 */
.push-delivery-filter{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:4px 0 10px}
.push-delivery-filter select{min-height:38px;padding:7px 10px;border:1.5px solid var(--line);border-radius:9px;background:#FDFCF8;color:var(--ink);font-family:inherit;font-size:13px}
.push-delivery-count{font-size:12px;color:var(--ink2);margin-left:auto}
.push-delivery-item{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 2px;border-bottom:1px dashed var(--line);font-size:13px}
.push-delivery-item:last-child{border-bottom:none}
.push-delivery-item .grow{flex:1;min-width:220px}
.push-delivery-item .hint{font-size:12px;color:var(--ink2);margin-top:3px;overflow-wrap:anywhere}
@media (max-width:768px){ .push-cfg-row{flex-wrap:wrap} .push-delivery-count{margin-left:0} }
.switch{width:46px;height:26px;border-radius:999px;border:none;background:#D8D0BC;position:relative;cursor:pointer;transition:background .15s;flex-shrink:0;padding:0}
.switch::after{content:'';position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2);transition:left .15s}
.switch.on{background:var(--mint)}
.switch.on::after{left:23px}
.st-l1row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:4px 2px 7px}
.st-l1row b{font-size:15px;font-weight:700;color:var(--mint-d)}
.st-l2{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:7px 2px;border-top:1px dashed var(--line)}
.st-l1row + .st-l2{border-top:none}
.st-l2 b{font-size:14px;font-weight:600}
.st-l3s{display:flex;flex-wrap:wrap;gap:6px;padding:2px 2px 8px}
.st-ops{display:inline-flex;gap:6px;margin-left:auto;flex-shrink:0}
.st-x{cursor:pointer;opacity:.55;font-style:normal;padding:0 2px}
.st-x:hover{opacity:1;color:var(--red)}
.st-edit{color:var(--mint-d)}
.st-edit:hover{color:var(--mint-d)}
.st-add{padding:8px 0 2px;border-top:1px dashed var(--line);margin-top:4px}
/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  #sidebar{display:none}
  #bottombar{display:block}
  main{width:100%;padding:12px 12px calc(90px + env(safe-area-inset-bottom))}
  .tb-left{gap:8px;flex-wrap:wrap}
  .tb-book{width:28px;height:24px}
  .topbar h1{font-size:20px}
  .tb-date{font-size:11px}
  .form-grid{grid-template-columns:1fr}
  .subj-name{flex-basis:96px;font-size:12px}
  .subj-row{gap:8px}
}
/* ---------- 登录屏与账号体系 ---------- */
#login-screen{
  display:none;position:fixed;inset:0;z-index:200;overflow:hidden;
  align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(160deg,#FAF5E9 0%,#F4EDD9 55%,#E9F3EC 100%);  /* 极淡奶油→薄荷渐变装饰 */
}
.login-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  box-shadow:0 2px 6px rgba(62,90,78,.06),0 18px 48px rgba(62,90,78,.13);  /* 分层阴影 */
  padding:28px 26px;max-width:380px;width:100%;position:relative;overflow:hidden;
}
/* 卡片顶部极淡薄荷渐变装饰带 */
.login-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:110px;pointer-events:none;
  background:linear-gradient(180deg,rgba(95,184,154,.09),transparent);
}
.login-card .brand{padding:0 0 16px;margin-bottom:16px;position:relative}
.login-card .field{margin-bottom:14px;position:relative}
.login-tag{
  display:inline-block;background:var(--amber-l);color:#B9802A;font-size:12px;
  font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:16px;position:relative;
}
.login-demo{
  margin-top:14px;font-size:12px;color:var(--ink2);background:var(--mint-xl);
  border-radius:10px;padding:10px 12px;line-height:1.8;
}
.login-ver{text-align:center;font-size:11px;color:var(--ink2);opacity:.55;margin-top:12px}
.role-seg{display:flex;gap:8px}
.role-opt{
  flex:1;padding:10px 0;border:1.5px solid var(--line);border-radius:12px;background:#FDFCF8;
  font-size:15px;font-family:inherit;color:var(--ink2);cursor:pointer;min-height:44px;
  transition:background .15s,border-color .15s,color .15s;
}
.role-opt.active{background:var(--mint-l);border-color:var(--mint);color:var(--mint-d);font-weight:600}
.user-area{margin-left:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.user-chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--mint-xl);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:14px;font-weight:600;
}
.role-badge{background:var(--mint-d);color:#fff;font-size:11px;padding:2px 8px;border-radius:999px}
.role-badge.admin{background:var(--amber)}
.acct-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 2px;border-bottom:1px dashed var(--line)}  /* 紧凑化 */
.acct-row:last-child{border-bottom:none}
.acct-row .grow{flex:1;min-width:200px}
.owner-tag{cursor:pointer}
.owner-tag:hover{background:var(--mint-d);color:#fff}
/* 可点标签的常驻可点提示：尾部 ›（纯展示标签无此符号；不依赖 hover，手机端也可见） */
.owner-tag .tag-go{opacity:.6;margin-left:2px;font-weight:700}
.owner-tag:hover .tag-go{opacity:1}
/* ---------- 教务数据看板 ---------- */
.dash-filter{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.dash-filter .role-seg{flex:0 1 340px}
.dash-filter select{
  font-size:14px;padding:8px 10px;border:1.5px solid var(--line);border-radius:10px;
  background:#FDFCF8;font-family:inherit;color:var(--ink);min-height:40px;
}
.dash-current{font-size:12px;color:var(--ink2)}
.dash-trend{display:block;padding-top:0}
.dash-trend-bars{display:flex;align-items:flex-end;gap:3px;height:110px;padding-top:6px}
.dash-trend-toggle{margin-top:8px}
.dash-table-wrap{max-height:360px;overflow:auto;margin-top:10px;border:1px solid var(--line);border-radius:10px}
.dash-table{width:100%;border-collapse:collapse;font-size:12px;background:var(--card)}
.dash-table th,.dash-table td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:left;font-variant-numeric:tabular-nums}
.dash-table th{position:sticky;top:0;background:var(--mint-xl);color:var(--ink2);z-index:1}
.dash-table tr:last-child td{border-bottom:none}
.dash-alert-total{margin-bottom:6px;font-size:12px;color:var(--ink2)}
.dash-alert-toggle{margin-top:2px}
.dash-alert-pager{gap:6px}
.dash-alert-pager .pager-meta{flex:1 1 100%;margin-right:0}
.dash-alert-pager .pager-page{display:none}
.dash-alert-pager label{font-size:11px}
.dash-first-toggle{margin-top:6px}
.dash-first-item{background:var(--mint-xl)}
.dash-sub-filter{margin-top:12px}
/* 学科维度专属：细条、独立数值列与阈值参考线；不影响学生页共用 subj 组件 */
.dash-subject-list{display:flex;flex-direction:column;gap:4px}
.dash-subject-guide{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 0 7px;border-bottom:1px solid var(--line);font-size:12px;color:var(--ink2)}
.dash-subject-guide > span:last-child{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.dash-subject-guide i{display:inline-block;width:12px;height:0;margin-left:8px}
.dash-subject-guide .dash-ref-60{border-top:1px dashed #D8A7A2}
.dash-subject-guide .dash-ref-85{border-top:1px solid #8FC5B2}
#dash-subject-results .dash-subject-row{display:grid;grid-template-columns:132px minmax(0,1fr) 48px 96px;gap:12px;min-height:28px}
#dash-subject-results .subj-name{min-width:0;font-size:13px}
#dash-subject-results .subj-bar{height:10px;min-width:0;border-radius:5px;background:#EDF4EF}
#dash-subject-results .subj-bar::after{left:60%;border-left:1px dashed #D8A7A2;opacity:.8}
#dash-subject-results .subj-bar::before{content:'';position:absolute;left:85%;top:0;bottom:0;border-left:1px solid #8FC5B2;opacity:.75;z-index:1}
#dash-subject-results .subj-fill{border-radius:5px}
#dash-subject-results .subj-pct{position:static;transform:none;text-align:right;font-size:13px;line-height:1.2}
#dash-subject-results .subj-cnt{min-width:0;text-align:right;font-size:12px;white-space:nowrap}
@media(max-width:640px){
  .dash-subject-guide{align-items:flex-start;flex-direction:column;gap:3px}
  .dash-subject-guide > span:last-child{white-space:normal}
  #dash-subject-results .dash-subject-row{grid-template-columns:96px minmax(60px,1fr) 40px 80px;gap:6px}
  #dash-subject-results .subj-name{font-size:12px}
  #dash-subject-results .subj-pct{font-size:12px}
  #dash-subject-results .subj-cnt{font-size:11px}
}
@media(max-width:359px){
  /* 极窄屏改为两行：名称/百分比/数量在上，细条占下一整行，不再裁切右列 */
  #dash-subject-results .dash-subject-row{grid-template-columns:minmax(0,1fr) 44px 84px;gap:5px 6px;min-height:40px}
  #dash-subject-results .subj-name{grid-column:1;grid-row:1}
  #dash-subject-results .subj-pct{grid-column:2;grid-row:1}
  #dash-subject-results .subj-cnt{grid-column:3;grid-row:1}
  #dash-subject-results .subj-bar{grid-column:1/-1;grid-row:2;width:100%}
}
.dash-sub-pager{margin-top:12px}
.dash-return-btn{margin-bottom:12px}
.dash-bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;height:100%;min-width:0}
.dash-bar-track{flex:0 0 86px;display:flex;align-items:flex-end;justify-content:center;width:100%}
.dash-bar{width:100%;max-width:22px;border-radius:4px 4px 0 0;min-height:2px;display:block}
.dash-bar-lbl{width:100%;height:14px;line-height:14px;text-align:center;font-size:9px;color:var(--ink2);margin-top:4px;white-space:nowrap;overflow:hidden}
.dash-ta-current{display:flex;align-items:center;gap:10px;margin:0 0 8px;padding:8px 10px;border-radius:10px;background:var(--mint-l);font-size:13px;color:var(--mint-d)}
.dash-ta-current b{color:var(--ink)}
.dash-ta-current .btn{margin-left:auto}
.dash-ta-row{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 8px;border:0;border-bottom:1px dashed var(--line);
  width:100%;font:inherit;color:inherit;text-align:left;background:transparent;
  cursor:pointer;border-radius:10px;
}
.dash-ta-row:last-child{border-bottom:none}
.dash-ta-row:hover{background:var(--mint-xl)}
.dash-ta-row.active{background:var(--mint-l)}
.dash-ta-row:focus-visible{outline:2px solid var(--mint-d);outline-offset:2px}
.dash-ta-row .grow{flex:1;min-width:140px;display:block}
.dash-ta-bar{flex:0 1 160px;background:var(--mint-xl);border-radius:999px;height:10px;overflow:hidden;display:block}
.dash-ta-fill{height:100%;background:var(--mint);border-radius:999px;min-width:0;display:block}
.dash-ta-num{font-size:13px;color:var(--ink2);white-space:nowrap}
.dash-cat-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 2px;border-bottom:1px dashed var(--line);font-size:14px}
.dash-cat-row:last-child{border-bottom:none}
.dash-cat-row .cat-name{font-weight:700;color:var(--mint-d);flex:0 0 64px}
.dash-alerts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.dash-alert-item{
  display:block;width:100%;text-align:left;border:1px solid var(--line);border-radius:12px;background:#FDFCF8;
  padding:10px 12px;margin-bottom:8px;cursor:pointer;font-size:13px;font-family:inherit;color:var(--ink);
}
.dash-alert-item:hover{border-color:var(--mint);background:var(--mint-xl)}
.dash-alert-item .meta{color:var(--ink2);font-size:12px;margin-top:2px}
.subj-name.low{color:var(--red)}
/* 待审批红点徽章（仅教务可见，0 时不显示） */
.nav-badge{
  display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;
  padding:0 5px;border-radius:999px;background:var(--red);color:#fff;font-size:11px;font-weight:700;
}
.nav-btn .nav-badge{margin-left:auto}
#bottombar .tab-btn{position:relative}
.tab-btn .nav-badge{position:absolute;top:3px;right:calc(50% - 22px)}
/* 学生明细：助教维度筛选 chips（仅教务可见，移动端横向滚动；四周留出内边距避免选中态 outline 被滚动容器裁切） */
.ta-chips{display:flex;gap:8px;overflow-x:auto;margin-bottom:12px;padding:2px 2px 8px}
.ta-chips .sub-chip{flex-shrink:0}
.ta-chips .chip-cnt{font-size:11px;color:var(--ink2)}
.ta-group-head{display:flex;align-items:baseline;gap:8px;margin:16px 0 10px;font-size:14px;font-weight:700;color:var(--mint-d)}
.ta-group-head .cnt{font-size:12px;font-weight:400;color:var(--ink2)}
/* 「各科目平均正确率」图表卡片：默认折叠，点击标题展开 */
#stats-chart-card > h2{cursor:pointer;user-select:none;margin-bottom:0}
#stats-chart-card:not(.collapsed) > h2{margin-bottom:14px}
#stats-chart-card.collapsed .chart-wrap{display:none}
#stats-chart-card .chev{font-size:12px;color:var(--ink2);transition:transform .15s}
#stats-chart-card.collapsed .chev{transform:rotate(-90deg)}
/* 操作记录（审计日志） */
/* 日志行单行化：时间/人/动作/对象一行（对象超长省略号），detail 另起一行折行 */
.audit-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:6px 2px;border-bottom:1px dashed var(--line);font-size:13px}
.audit-row:last-child{border-bottom:none}
.audit-target{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}
.audit-ts{color:var(--ink2);flex:0 0 88px;font-variant-numeric:tabular-nums}
.audit-user{font-weight:600}
.audit-user .role-badge{margin-left:4px}
.audit-detail{width:100%;color:var(--ink2);font-size:12px;line-height:1.5}
@media (max-width:768px){
  .user-area{width:100%;margin-left:0;gap:8px}
  .dash-alerts{grid-template-columns:1fr}
  .dash-ta-bar{flex-basis:100%}
  .topbar{gap:8px;flex-wrap:wrap;margin-bottom:12px;padding:12px 14px;min-height:0}
  .topbar::before{display:none}
  .card{padding:16px;margin-bottom:12px}
  .field input,.field select,.search-box input,.qe-grid input,.plan-row input,.slot-edit input,
  .mock-row input[type=date],.mock-row input[type=number],.chip-edit input,.dash-filter select,
  .subject-row select,.subject-row input{min-height:50px}
  .btn,.btn.sm,.role-opt{min-height:48px}
  .stu-ta-select-label select{min-height:50px;max-width:none}
  .slot-edit .se-field input{height:50px;min-height:50px}
  .mock-row .btn{height:48px;min-height:48px}
  .sub-chip{min-height:44px}
  .today-grp-head,.stu-detail summary{min-height:50px}
  .today-grp-head{flex-wrap:wrap}
  .today-grp-head .grp-sub{flex:1 1 100%;order:3}
  .today-seg{min-height:44px}
  .today-filter select,.today-filter input,.today-pager select{min-height:50px}
  .today-owner,.today-search{flex:1 1 100%;width:100%}
  .today-owner-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .today-owner-stat{min-height:44px;padding:8px}
  .today-pager .btn{min-height:44px}
  .today-pager .pager-meta{flex:1 1 100%;margin-right:0}
  /* 学生卡头部：头像+姓名一行占满，徽章在 grow 内自然换行；趋势折线固定 120x40 与「新增科目」按钮落到下一行，禁止拉伸 */
  .stu-head .grow{flex:1 1 calc(100% - 52px);min-width:0}
  .stu-head > svg{flex:0 0 120px;width:120px;height:40px}
  .stu-nums{gap:12px 16px}
  .dash-bar-col:last-child .dash-bar-lbl{transform:translateX(-55%)}
  .acct-row .btn{flex-shrink:0}
}
@media (min-width:1600px){
  main{padding-left:32px;padding-right:32px}
}
/* ---------- 装饰与动效（克制版：只做氛围层/奖励感时刻） ---------- */
/* 登录页背景装饰圆斑（薄荷/琥珀，大幅模糊，角落绝对定位，卡片浮于其上） */
.login-blob{position:absolute;border-radius:50%;pointer-events:none;filter:blur(70px);z-index:0}
.login-blob.b1{width:340px;height:340px;background:rgba(95,184,154,.26);top:-90px;left:-70px}
.login-blob.b2{width:300px;height:300px;background:rgba(232,169,76,.22);bottom:-80px;right:-60px}
.login-blob.b3{width:200px;height:200px;background:rgba(95,184,154,.16);bottom:12%;left:8%}
.login-card{z-index:1}  /* 浮于装饰圆斑之上 */
/* 登录页品牌区小铅笔装饰（与 topbar 插画呼应） */
.login-card .brand-deco{width:22px;height:22px;margin-left:auto;flex-shrink:0;opacity:.85}
/* 空状态小插画（对勾气泡/空书本，纯装饰） */
.empty-tip{display:flex !important;flex-direction:column;align-items:center;gap:8px;text-align:center;padding:20px 0}
.empty-tip svg{width:44px;height:44px;flex-shrink:0}
/* 打卡格子 ✓ 内联 SVG 尺寸 */
.ci-mark svg{width:15px;height:15px;vertical-align:-2px}
@keyframes pop-in{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:none}}
@keyframes grow-x{from{width:0}}
@keyframes draw-check{to{stroke-dashoffset:0}}
@keyframes modal-in{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: no-preference){
  .tag{animation:pop-in .2s ease-out}                                  /* 徽章弹入 */
  .subj-fill{animation:grow-x .6s ease-out}                            /* 正确率条从 0 生长到目标宽度 */
  .ci-slot.done .ci-mark path{stroke-dasharray:20;stroke-dashoffset:20;animation:draw-check .4s ease-out .05s forwards}  /* ✓ 描边动画（仅首次渲染） */
  .modal-mask.show .modal{animation:modal-in .15s ease-out}            /* 弹窗 scale 弹入 */
}
/* 克制微动效：卡片进入 fade-up、页签切换淡入；系统开减动效时自动关闭 */
@keyframes fade-up{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes fade-in{from{opacity:0}to{opacity:1}}
@media (prefers-reduced-motion: no-preference){
  .card{animation:fade-up .25s ease-out}
  .tab-pane.active{animation:fade-in .2s ease-out}
}