/* ===========================================================
   英语教师工作台 · 样式
   可爱 / 温馨 / 粉色 / 圆角卡片
   =========================================================== */

:root{
  --bg:#fdf6fa;
  --panel:#ffffff;
  --panel-2:#fff8fb;
  --panel-3:#fff2f8;
  --sidebar-bg:#fff0f6;
  --line:#f6e0ea;
  --line-strong:#eed0de;
  --text:#3b2a33;
  --text-2:#8b727e;
  --text-3:#b39dab;
  --primary:#ef6f9e;
  --primary-strong:#e0568b;
  --primary-soft:#ffe4ef;
  --primary-ghost:#fff3f8;
  --ok:#3fae8b;
  --ok-soft:#e4f6ef;
  --warn:#dd9b31;
  --warn-soft:#fdf1da;
  --danger:#e0568b;
  --danger-soft:#ffe3ee;
  --danger-ink:#b8335f;
  --info:#7d8cdd;
  --info-soft:#ececfb;
  --shadow:0 8px 26px rgba(224,86,139,.08);
  --shadow-sm:0 2px 10px rgba(224,86,139,.06);
  --shadow-lg:0 18px 48px rgba(120,60,90,.16);
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:24px;
  --chart-grid:#f4e2ea;
}

html[data-theme="dark"]{
  --bg:#181018;
  --panel:#241a25;
  --panel-2:#2b1f2c;
  --panel-3:#332331;
  --sidebar-bg:#1f1620;
  --line:#3b2a38;
  --line-strong:#4b3546;
  --text:#f8eaf2;
  --text-2:#c3a8b7;
  --text-3:#907787;
  --primary:#f58cb1;
  --primary-strong:#ffa1c0;
  --primary-soft:#42283a;
  --primary-ghost:#2e1f2d;
  --ok:#57c39f;
  --ok-soft:#1f3b34;
  --warn:#e5b45f;
  --warn-soft:#3b3122;
  --danger:#f58cb1;
  --danger-soft:#432634;
  --danger-ink:#ffa8c5;
  --info:#9aa4ec;
  --info-soft:#2b2b46;
  --shadow:0 8px 26px rgba(0,0,0,.34);
  --shadow-sm:0 2px 10px rgba(0,0,0,.28);
  --shadow-lg:0 18px 48px rgba(0,0,0,.5);
  --chart-grid:#3b2a38;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:14px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--primary-strong);text-decoration:none}
.hidden{display:none !important}
html.no-anim *,html.no-anim *::before,html.no-anim *::after{transition:none !important}
.muted{color:var(--text-2)}
.tiny{font-size:12px}

/* ============================ 登录 ============================ */
.login{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:24px;
  background:
    radial-gradient(900px 460px at 12% 4%, #ffe4f0 0%, rgba(255,228,240,0) 62%),
    radial-gradient(760px 420px at 92% 96%, #ffe9f4 0%, rgba(255,233,244,0) 60%),
    var(--bg);
}
html[data-theme="dark"] .login{
  background:
    radial-gradient(900px 460px at 12% 4%, #35202f 0%, rgba(53,32,47,0) 62%),
    radial-gradient(760px 420px at 92% 96%, #2c1d2b 0%, rgba(44,29,43,0) 60%),
    var(--bg);
}
.login-card{
  width:100%;
  max-width:372px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  padding:40px 32px 30px;
  display:flex;
  flex-direction:column;
  gap:16px;
  text-align:center;
}
.login-title{
  font-size:22px;
  letter-spacing:1px;
  margin-bottom:8px;
  color:var(--text);
}
.login-input{
  width:100%;
  height:48px;
  border-radius:14px;
  border:1.5px solid var(--line);
  background:var(--panel-2);
  padding:0 16px;
  text-align:center;
  letter-spacing:2px;
  outline:none;
  transition:.18s;
}
.login-input::placeholder{letter-spacing:0;color:var(--text-3)}
.login-input:focus{border-color:var(--primary);background:var(--panel);box-shadow:0 0 0 4px var(--primary-soft)}
.login-btn{height:46px;width:100%;font-size:15px;letter-spacing:4px}
.login-err{min-height:18px;font-size:12.5px;color:var(--danger)}

/* ============================ 布局 ============================ */
.app{display:flex;min-height:100vh;align-items:stretch}

.sidebar{
  width:236px;
  flex:0 0 236px;
  background:var(--sidebar-bg);
  border-right:1px solid var(--line);
  padding:20px 14px 16px;
  display:flex;
  flex-direction:column;
  gap:18px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  z-index:40;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 6px 0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#f9a3c0);
  color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 6px 14px rgba(239,111,158,.32);
  flex:0 0 36px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:10.5px;color:var(--text-3);letter-spacing:.4px}

.class-switch{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:10px 10px 8px;
}
.switch-label{font-size:11.5px;color:var(--text-3);margin-bottom:4px;padding-left:2px}
.select-wrap{position:relative}
.class-select{
  width:100%;height:36px;border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel-2);
  padding:0 26px 0 10px;
  font-weight:600;font-size:13.5px;
  appearance:none;outline:none;cursor:pointer;
}
.class-select:focus{border-color:var(--primary)}
.select-caret{position:absolute;right:9px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--text-3);font-size:11px}
.add-class{
  margin-top:6px;width:100%;height:30px;border-radius:9px;
  color:var(--primary-strong);font-size:12.5px;
  border:1px dashed var(--line-strong);background:transparent;transition:.16s;
}
.add-class:hover{background:var(--primary-ghost);border-color:var(--primary)}

.nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;
  color:var(--text-2);font-size:13.5px;font-weight:600;
  text-align:left;transition:.16s;width:100%;
}
.nav-item:hover{background:var(--panel);color:var(--text)}
.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(239,111,158,.28)}
.nav-item.active .nav-icon{stroke:#fff}
.nav-icon{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 17px}
.sidebar-foot{padding-top:8px;border-top:1px solid var(--line)}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  height:64px;
  flex:0 0 64px;
  display:flex;align-items:center;gap:14px;
  padding:0 24px;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.page-title h1{font-size:16.5px;line-height:1.2}
.page-title p{font-size:11.5px;color:var(--text-3);margin-top:2px}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.theme-btn{
  display:flex;align-items:center;gap:6px;
  height:34px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);
  font-size:12.5px;color:var(--text-2);transition:.16s;
}
.theme-btn:hover{border-color:var(--primary);color:var(--primary-strong)}
.theme-icon{width:14px;height:14px;display:inline-block}
.theme-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.user-chip{
  display:flex;align-items:center;gap:8px;
  height:34px;padding:0 12px 0 4px;border-radius:999px;
  background:var(--panel-3);border:1px solid var(--line);
  font-size:12.5px;font-weight:600;
}
.user-avatar{
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#f9a8c4);
  color:#fff;font-size:12px;font-weight:700;
}
.menu-btn{display:none}
.icon-btn{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  color:var(--text-2);transition:.16s;flex:0 0 32px;
}
.icon-btn:hover{background:var(--primary-ghost);color:var(--primary-strong)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.page{padding:22px 24px 46px;max-width:1280px;width:100%;margin:0 auto}

/* ============================ 通用组件 ============================ */
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:18px;
}
.card.flush{padding:0;overflow:hidden}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.card-head h3{font-size:14.5px}
.card-head .more{margin-left:auto;font-size:12.5px;color:var(--text-3)}
.card-head .more:hover{color:var(--primary-strong)}

.page-head{display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.page-head h2{font-size:19px}
.page-head .sub{font-size:12.5px;color:var(--text-2);margin-top:3px}
.head-actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:34px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);
  font-size:13px;font-weight:600;color:var(--text);transition:.16s;white-space:nowrap;
}
.btn:hover{border-color:var(--primary);color:var(--primary-strong);background:var(--primary-ghost)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(239,111,158,.24)}
.btn.primary:hover{background:var(--primary-strong);border-color:var(--primary-strong);color:#fff}
.btn.ghost{background:transparent}
.btn.soft-danger{background:var(--danger-soft);border-color:transparent;color:var(--danger-ink);font-weight:700}
.btn.soft-danger:hover{background:var(--danger-soft);border-color:var(--danger);color:var(--danger)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.danger:hover{filter:brightness(.95);color:#fff}
.btn.sm{height:28px;padding:0 11px;font-size:12px}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

.tag{
  display:inline-flex;align-items:center;gap:4px;
  padding:1px 8px;border-radius:999px;
  font-size:11.5px;font-weight:600;line-height:1.7;
  background:var(--primary-soft);color:var(--primary-strong);
  white-space:nowrap;
}
.tag.gray{background:var(--panel-3);color:var(--text-2)}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.warn{background:var(--warn-soft);color:var(--warn)}
.tag.bad{background:var(--danger-soft);color:var(--danger)}
.tag.info{background:var(--info-soft);color:var(--info)}
.tag.plain{background:transparent;border:1px solid var(--line);color:var(--text-2)}

.chipbar{display:flex;gap:6px;flex-wrap:wrap}
.chip{
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);font-weight:600;
  background:var(--panel-2);border:1px solid var(--line);transition:.16s;
}
.chip:hover{border-color:var(--primary);color:var(--primary-strong)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}

.field{display:flex;flex-direction:column;gap:5px}
.field > label,.field-label{font-size:12px;color:var(--text-2);font-weight:600}
.input,.select,.textarea{
  height:36px;border-radius:11px;border:1px solid var(--line);
  background:var(--panel-2);padding:0 11px;outline:none;transition:.16s;width:100%;
}
.textarea{height:auto;padding:9px 11px;line-height:1.6;resize:vertical;min-height:70px}
.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);background:var(--panel);box-shadow:0 0 0 3px var(--primary-soft)}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 14px) 15px,calc(100% - 9px) 15px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:28px;cursor:pointer}

.search{position:relative;flex:1;min-width:180px;max-width:320px}
.search input{
  height:36px;width:100%;border-radius:999px;border:1px solid var(--line);
  background:var(--panel-2);padding:0 14px 0 34px;outline:none;transition:.16s;
}
.search input:focus{border-color:var(--primary);background:var(--panel);box-shadow:0 0 0 3px var(--primary-soft)}
.search::before{
  content:"";position:absolute;left:13px;top:50%;width:12px;height:12px;
  transform:translateY(-50%);
  border:1.8px solid var(--text-3);border-radius:50%;
}
.search::after{
  content:"";position:absolute;left:23px;top:calc(50% + 4px);width:6px;height:1.8px;
  background:var(--text-3);transform:rotate(45deg);
}

.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.toolbar .spacer{flex:1}

.table-wrap{overflow-x:auto;border-radius:var(--radius-sm);margin:-4px -4px 0;padding:4px}
.tbl{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;min-width:560px}
.tbl thead th{
  text-align:left;font-size:11.5px;font-weight:700;color:var(--text-3);
  letter-spacing:.3px;padding:8px 10px;background:var(--panel-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.tbl thead th:first-child{border-left:1px solid var(--line);border-radius:10px 0 0 10px}
.tbl thead th:last-child{border-right:1px solid var(--line);border-radius:0 10px 10px 0}
.tbl tbody td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle;white-space:nowrap}
.tbl tbody tr{cursor:pointer;transition:.14s}
.tbl tbody tr:hover td{background:var(--primary-ghost)}
.tbl tbody tr:last-child td{border-bottom:none}
.tbl .num{font-variant-numeric:tabular-nums;font-weight:600}
.tbl .col-name{display:flex;align-items:center;gap:9px;font-weight:600;white-space:nowrap}
.mini-avatar{
  width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary-strong);
  font-size:12px;font-weight:700;flex:0 0 28px;
}

.progress{height:7px;border-radius:999px;background:var(--panel-3);overflow:hidden}
.progress > i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#f9a7c3);transition:width .4s}

.empty{
  padding:38px 16px;text-align:center;color:var(--text-3);font-size:13px;
}
.empty strong{display:block;color:var(--text-2);font-size:13.5px;margin-bottom:4px;font-weight:600}

.tabs{display:inline-flex;gap:4px;padding:4px;background:var(--panel-2);border:1px solid var(--line);border-radius:999px;margin-bottom:16px}
.tab{
  height:30px;padding:0 16px;border-radius:999px;font-size:12.8px;font-weight:600;color:var(--text-2);transition:.16s;
}
.tab.active{background:var(--panel);color:var(--primary-strong);box-shadow:var(--shadow-sm)}
.tab:hover:not(.active){color:var(--text)}

/* ============================ 工作台 ============================ */
.dash-head{
  display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;
  margin-bottom:18px;
}
.dash-head .greet{font-size:19px;font-weight:700}
.dash-head .greet small{font-size:12.5px;font-weight:400;color:var(--text-2);margin-left:8px}
.dash-head .today{font-size:12.5px;color:var(--text-2);margin-top:2px}
.dash-metrics{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.metric{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:8px 14px;min-width:84px;box-shadow:var(--shadow-sm);
}
.metric b{display:block;font-size:17px;line-height:1.2}
.metric span{font-size:11.5px;color:var(--text-3)}

.dash-grid{display:grid;grid-template-columns:minmax(0,1.62fr) minmax(0,1fr);gap:16px;align-items:start}

.feed{display:flex;flex-direction:column;gap:8px}
.feed-item{
  display:flex;align-items:flex-start;gap:11px;
  padding:12px 13px;border-radius:14px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-left:3px solid var(--line-strong);
  transition:.16s;
}
.feed-item:hover{background:var(--panel);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.feed-item.prio-high{border-left-color:var(--danger)}
.feed-item.prio-mid{border-left-color:var(--warn)}
.feed-item.prio-low{border-left-color:var(--ok)}
.feed-check{
  width:19px;height:19px;border-radius:7px;border:1.8px solid var(--line-strong);
  flex:0 0 19px;margin-top:2px;display:grid;place-items:center;transition:.16s;background:var(--panel);
}
.feed-check:hover{border-color:var(--primary);background:var(--primary-ghost)}
.feed-check svg{width:11px;height:11px;fill:none;stroke:#fff;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;opacity:0}
.feed-item .i-ico{
  width:19px;height:19px;border-radius:7px;flex:0 0 19px;margin-top:2px;display:grid;place-items:center;
  font-size:11px;font-weight:700;
}
.feed-main{min-width:0;flex:1}
.feed-title{font-size:13.2px;font-weight:600;line-height:1.5;word-break:break-word}
.feed-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:4px;font-size:11.5px;color:var(--text-3)}
.feed-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.feed-go{align-self:center;font-size:12px;color:var(--text-3);white-space:nowrap;padding:2px 6px;border-radius:8px}
.feed-go:hover{color:var(--primary-strong);background:var(--primary-soft)}
.feed-names{font-size:11.5px;color:var(--text-2);margin-top:3px;line-height:1.5}
.feed-names b{font-weight:600;color:var(--text-2)}

.lesson-list{display:flex;flex-direction:column;gap:8px}
.lesson{
  display:flex;gap:11px;align-items:center;
  padding:11px 12px;border-radius:14px;
  background:var(--panel-2);border:1px solid var(--line);
  transition:.16s;
}
.lesson .time{
  font-size:11.5px;color:var(--text-3);font-variant-numeric:tabular-nums;
  flex:0 0 82px;line-height:1.45;
}
.lesson .time b{display:block;color:var(--text-2);font-size:12px}
.lesson .body{min-width:0;flex:1}
.lesson .body strong{font-size:13.2px;display:block}
.lesson .body span{font-size:11.5px;color:var(--text-2)}
.lesson.is-now{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 6px 16px rgba(239,111,158,.14)}
.lesson.is-now .time b{color:var(--primary-strong)}
.lesson.is-next{border-style:dashed;border-color:var(--primary)}
.badge-now{
  font-size:10.5px;font-weight:700;color:#fff;background:var(--primary);
  border-radius:999px;padding:1px 8px;
}

/* ============================ 学生 ============================ */
.stu-grid{display:grid;gap:16px}
.stu-row-actions{display:flex;gap:6px;justify-content:flex-end}

/* 详情抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:120;
  background:rgba(58,32,45,.28);
  display:flex;justify-content:flex-end;
  opacity:0;transition:opacity .2s;
  backdrop-filter:blur(2px);
}
.drawer-mask.in{opacity:1}
.drawer{
  width:100%;max-width:520px;height:100%;
  background:var(--panel);
  border-left:1px solid var(--line);
  display:flex;flex-direction:column;
  transform:translateX(26px);transition:transform .24s cubic-bezier(.2,.8,.3,1);
  box-shadow:var(--shadow-lg);
}
.drawer-mask.in .drawer{transform:none}
.drawer-head{
  padding:16px 18px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
}
.drawer-head h3{font-size:15px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drawer-body{padding:16px 18px 26px;overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:18px}
.drawer-foot{padding:12px 18px;border-top:1px solid var(--line);display:flex;gap:8px;flex:0 0 auto;background:var(--panel-2)}
.section-title{
  display:flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;color:var(--text-2);
  margin-bottom:10px;
}
.section-title::before{content:"";width:3px;height:12px;border-radius:2px;background:var(--primary)}
.section-title .r{margin-left:auto;font-weight:500;font-size:12px;color:var(--text-3)}
.profile{display:flex;gap:12px;align-items:center}
.profile .big-avatar{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#f9a8c4);color:#fff;font-size:19px;font-weight:700;
  flex:0 0 52px;box-shadow:0 8px 18px rgba(239,111,158,.26);
}
.profile h4{font-size:16px}
.profile .meta{font-size:12px;color:var(--text-2);display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:2px}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.info-cell{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:8px 10px}
.info-cell span{font-size:11px;color:var(--text-3);display:block}
.info-cell b{font-size:13.5px}

.chart{width:100%;height:auto;display:block;overflow:visible}
.chart-wrap{background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:8px 6px 2px}

/* 成绩录入 */
.entry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px}
.entry-item{
  display:flex;align-items:center;gap:9px;
  padding:8px 10px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--line);
  transition:.14s;
}
.entry-item:focus-within{border-color:var(--primary);background:var(--panel);box-shadow:0 0 0 3px var(--primary-soft)}
.entry-item .nm{flex:1;min-width:0;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.entry-item .nm small{display:block;font-size:10.5px;color:var(--text-3);font-weight:400}
.entry-item input{
  width:62px;height:32px;text-align:center;border-radius:9px;
  border:1px solid var(--line);background:var(--panel);
  font-weight:700;font-variant-numeric:tabular-nums;outline:none;transition:.14s;
}
.entry-item input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.entry-item input::-webkit-outer-spin-button,.entry-item input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-bottom:16px}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow-sm);
}
.stat span{font-size:11.5px;color:var(--text-3);display:block}
.stat b{font-size:19px;line-height:1.35;font-variant-numeric:tabular-nums}
.stat b em{font-size:12px;font-style:normal;color:var(--text-3);font-weight:500;margin-left:2px}

/* 小组 */
.group-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.group-card .g-head{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.group-card .g-head strong{font-size:13.5px}
.group-card .g-head .cnt{font-size:11.5px;color:var(--text-3)}
.group-card .g-head .select{height:28px;font-size:12px;width:auto;margin-left:auto;padding:0 26px 0 9px}
.g-member{
  display:flex;align-items:center;gap:8px;padding:7px 0;border-top:1px dashed var(--line);
}
.g-member:first-of-type{border-top:none}
.g-member .nm{font-size:13px;font-weight:600;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.g-member .select{height:26px;font-size:11.5px;width:auto;padding:0 24px 0 8px}

/* ============================ 计划 ============================ */
.plan-grid{display:grid;grid-template-columns:minmax(0,0.95fr) minmax(0,1.05fr);gap:16px;align-items:start}
.todo-add{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}
.todo-add .full{grid-column:1/-1}
.todo-list{display:flex;flex-direction:column;gap:7px}
.todo{
  display:flex;align-items:flex-start;gap:10px;padding:10px 11px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--line);transition:.16s;
}
.todo:hover{background:var(--panel);box-shadow:var(--shadow-sm)}
.todo.done{opacity:.55}
.todo.done .t-text{text-decoration:line-through;color:var(--text-3)}
.check{
  width:19px;height:19px;border-radius:7px;border:1.8px solid var(--line-strong);
  flex:0 0 19px;margin-top:2px;display:grid;place-items:center;transition:.16s;background:var(--panel);
}
.check:hover{border-color:var(--primary)}
.check svg{width:11px;height:11px;fill:none;stroke:#fff;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;opacity:0}
.check.on{background:var(--primary);border-color:var(--primary)}
.check.on svg{opacity:1}
.t-body{flex:1;min-width:0}
.t-text{font-size:13.2px;font-weight:600;word-break:break-word}
.t-meta{display:flex;gap:7px;flex-wrap:wrap;align-items:center;font-size:11.5px;color:var(--text-3);margin-top:3px}
.del-btn{color:var(--text-3);width:24px;height:24px;border-radius:7px;display:grid;place-items:center;flex:0 0 24px}
.del-btn:hover{background:var(--danger-soft);color:var(--danger)}
.del-btn svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}

.tt-wrap{overflow-x:auto;padding-bottom:4px}
.tt{width:100%;border-collapse:separate;border-spacing:3px;min-width:524px;font-size:12px}
.tt th{font-size:11.5px;color:var(--text-3);font-weight:700;padding:2px 0 6px;text-align:center;white-space:nowrap}
.tt th.rowh{width:52px;text-align:left;padding-left:4px}
.tt td{padding:0}
.tt .p-label{font-size:11.5px;color:var(--text-2);font-weight:600;white-space:nowrap;padding-left:2px}
.tt-cell{
  min-height:46px;border-radius:10px;border:1px dashed var(--line);
  display:flex;flex-direction:column;gap:1px;padding:4px 5px;
  transition:.14s;cursor:pointer;align-items:stretch;justify-content:center;
  background:var(--panel-2);
}
.tt-cell:hover{border-color:var(--primary);background:var(--primary-ghost)}
.tt-cell.filled{border-style:solid;background:var(--primary-soft);border-color:transparent}
.tt-cell .c-cls{font-size:9.5px;color:var(--text-2);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tt-cell .c-course{font-size:11.2px;font-weight:700;color:var(--primary-strong);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tt-cell .c-plus{font-size:14px;color:var(--text-3);text-align:center;line-height:1}
.temp-list{display:flex;flex-direction:column;gap:7px;margin-top:14px}
.temp-item{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:11px;background:var(--panel-2);border:1px solid var(--line);font-size:12.5px}

/* ============================ 作业 ============================ */
.hw-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.hw-card{display:flex;flex-direction:column;gap:10px;transition:.18s}
.hw-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.hw-top{display:flex;align-items:flex-start;gap:10px}
.hw-top h3{font-size:14.5px;line-height:1.4}
.hw-top .sub{font-size:11.5px;color:var(--text-3);margin-top:3px}
.hw-top .tag{margin-left:auto;flex:0 0 auto}
.hw-bar{display:flex;align-items:center;gap:9px}
.hw-bar .progress{flex:1}
.hw-bar b{font-size:12.5px;font-variant-numeric:tabular-nums;color:var(--primary-strong)}
.hw-stats{display:flex;gap:12px;flex-wrap:wrap;font-size:11.8px;color:var(--text-2)}
.hw-actions{display:flex;gap:8px;margin-top:2px}
.hw-actions .btn{flex:1}

.hw-detail-head{display:flex;flex-direction:column;gap:4px;align-items:flex-start}
.hw-detail-head h2{font-size:19px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.meta-line{font-size:12.5px;color:var(--text-2);display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.summary{
  display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:12px;margin:16px 0;
}
.summary .s-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow-sm)}
.summary .s-box span{font-size:11.5px;color:var(--text-3);display:block;margin-bottom:5px}
.summary .s-box b{font-size:16px;font-variant-numeric:tabular-nums}
.summary .s-box .progress{margin-top:8px}

.stu-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(196px,1fr));gap:10px}
.stu-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:10px;
  display:flex;flex-direction:column;gap:8px;transition:.16s;
}
.stu-card:hover{box-shadow:var(--shadow-sm);background:var(--panel)}
.stu-card.st-missing{border-left:3px solid var(--danger)}
.stu-card.st-late{border-left:3px solid var(--warn)}
.stu-card.st-submitted{border-left:3px solid var(--ok)}
.stu-card-head{display:flex;align-items:center;gap:8px;cursor:pointer}
.stu-card-head .who{min-width:0;flex:1}
.stu-card-head strong{font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stu-card-head small{font-size:10.5px;color:var(--text-3)}
.seg{display:flex;gap:3px;background:var(--panel-3);border-radius:9px;padding:3px}
.seg button{
  flex:1;height:24px;border-radius:7px;font-size:11.5px;font-weight:600;color:var(--text-2);transition:.14s;
}
.seg button:hover{color:var(--text)}
.seg button.on{background:var(--panel);color:var(--text);box-shadow:var(--shadow-sm)}
.seg button.on[data-status="submitted"]{color:var(--ok)}
.seg button.on[data-status="late"]{color:var(--warn)}
.seg button.on[data-status="missing"]{color:var(--danger)}
.pass-row{display:flex;gap:4px}
.pass-row button{
  flex:1;height:24px;border-radius:7px;font-size:11.3px;font-weight:600;
  border:1px solid var(--line);color:var(--text-2);background:var(--panel);
}
.pass-row button.on[data-v="1"]{background:var(--ok-soft);border-color:transparent;color:var(--ok)}
.pass-row button.on[data-v="0"]{background:var(--danger-soft);border-color:transparent;color:var(--danger)}
.pass-row button:disabled{opacity:.42;cursor:not-allowed}

/* ============================ 设置 ============================ */
.set-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.set-form{display:flex;flex-direction:column;gap:12px}
.set-form .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.export-item{
  display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:13px;
  background:var(--panel-2);border:1px solid var(--line);margin-bottom:8px;
}
.export-item .x-ico{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--ok-soft);color:var(--ok);font-size:11px;font-weight:700;flex:0 0 34px;
}
.export-item .x-body{flex:1;min-width:0}
.export-item .x-body strong{font-size:13px;display:block}
.export-item .x-body span{font-size:11.5px;color:var(--text-3)}
.hint{font-size:11.5px;color:var(--text-3);line-height:1.6}

/* ============================ 提示 / 弹窗 ============================ */
.toasts{position:fixed;top:18px;right:18px;z-index:300;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{
  display:flex;align-items:center;gap:8px;
  min-width:170px;max-width:330px;
  padding:10px 15px;border-radius:13px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-lg);font-size:13px;font-weight:600;
  transform:translateX(20px);opacity:0;transition:.24s cubic-bezier(.2,.8,.3,1);
}
.toast.in{transform:none;opacity:1}
.toast-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);flex:0 0 7px}
.toast.err .toast-dot{background:var(--danger)}
.toast.warn .toast-dot{background:var(--warn)}
.toast.info .toast-dot{background:var(--info)}

.modal-mask{
  position:fixed;inset:0;z-index:200;background:rgba(58,32,45,.3);
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;transition:opacity .18s;backdrop-filter:blur(2px);
}
.modal-mask.in{opacity:1}
.modal{
  width:100%;max-width:430px;max-height:88vh;
  background:var(--panel);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);border:1px solid var(--line);
  display:flex;flex-direction:column;
  transform:translateY(8px) scale(.985);transition:transform .2s cubic-bezier(.2,.8,.3,1);
}
.modal-mask.in .modal{transform:none}
.modal.wide{max-width:660px}
.modal-head{padding:16px 18px 10px;display:flex;align-items:center;gap:10px}
.modal-head h3{font-size:15px;flex:1}
.modal-body{padding:0 18px 4px;overflow-y:auto;display:flex;flex-direction:column;gap:10px}
.modal-foot{padding:14px 18px 16px;display:flex;gap:8px;justify-content:flex-end}
.confirm-text{font-size:13.5px;color:var(--text-2);line-height:1.7}
.danger-tip{
  background:var(--danger-soft);color:var(--danger);border-radius:12px;
  padding:9px 12px;font-size:12.5px;font-weight:600;
}
.modal .field{margin-bottom:2px}
.modal-form{display:flex;flex-direction:column;gap:11px}

/* ============================ 批量操作 / 考试分析 ============================ */
.class-actions{display:flex;gap:6px;margin-top:6px}
.class-actions .add-class{margin-top:0;flex:1}

input[type="checkbox"]{accent-color:var(--primary);width:15px;height:15px;cursor:pointer;margin:0}
.pick-cell{width:34px !important;padding-right:0 !important}
.pick-cell input{display:block;margin:0 auto}

.batch-bar{
  display:flex;align-items:center;gap:10px;
  padding:8px 12px;margin-bottom:12px;border-radius:12px;
  background:var(--panel-2);border:1px dashed var(--line-strong);
  font-size:12.5px;color:var(--text-2);
}
.batch-bar b{color:var(--primary-strong);font-size:13.5px}
.batch-bar .spacer{flex:1}
.batch-bar.active{background:var(--primary-ghost);border-color:var(--primary);border-style:solid}

.bands{display:flex;align-items:flex-end;gap:10px;height:180px;padding-top:24px}
.band{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:6px;min-width:0}
.band .bar{
  width:100%;max-width:72px;border-radius:10px 10px 5px 5px;
  background:linear-gradient(180deg,var(--primary),#f9a7c3);
  position:relative;min-height:4px;transition:height .35s ease;
}
.band .bar.low{background:linear-gradient(180deg,#eaa0a0,#f3c2c2)}
.band .bar span{
  position:absolute;top:-21px;left:50%;transform:translateX(-50%);
  font-size:12px;font-weight:700;color:var(--text-2);white-space:nowrap;
}
.band .bl{font-size:11px;color:var(--text-3);white-space:nowrap;text-align:center}

.an-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:16px;align-items:start}

.cmp-row{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:12.8px}
.cmp-row .nm{width:92px;flex:0 0 92px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmp-row .progress{flex:1}
.cmp-row b{width:54px;text-align:right;font-variant-numeric:tabular-nums}
.cmp-row.me .nm{color:var(--primary-strong)}
.delta{font-size:11.5px;font-weight:700;padding:0 7px;border-radius:999px;line-height:1.7}
.delta.up{background:var(--ok-soft);color:var(--ok)}
.delta.down{background:var(--danger-soft);color:var(--danger)}
.delta.flat{background:var(--panel-3);color:var(--text-3)}

.mini-list{display:flex;flex-direction:column;gap:1px}
.mini-row{display:flex;align-items:center;gap:8px;padding:5px 2px;font-size:12.5px;border-bottom:1px dashed var(--line)}
.mini-row:last-child{border-bottom:none}
.mini-row .nm{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini-row .v{font-variant-numeric:tabular-nums;font-weight:600}

.cm-list{display:flex;flex-direction:column;gap:6px;max-height:52vh;overflow:auto}
.cm-row{
  display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:11px;
  background:var(--panel-2);border:1px solid var(--line);cursor:pointer;transition:.14s;
}
.cm-row:hover{border-color:var(--primary);background:var(--panel)}
.cm-row .nm{font-size:13px;font-weight:600;flex:1;min-width:0}
.cm-row.current{background:var(--primary-ghost);border-color:var(--primary)}

/* ============================ 响应式 ============================ */
@media (max-width:1080px){
  .dash-grid{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .summary{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .menu-btn{display:grid}
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;height:100vh;
    transform:translateX(-104%);transition:transform .24s cubic-bezier(.2,.8,.3,1);
    box-shadow:var(--shadow-lg);
  }
  .sidebar.open{transform:none}
  .sidebar-mask{
    position:fixed;inset:0;background:rgba(58,32,45,.32);z-index:35;display:none;
    backdrop-filter:blur(1px);
  }
  .sidebar-mask.show{display:block}
  .topbar{padding:0 14px;height:58px;flex:0 0 58px}
  .page{padding:16px 14px 44px}
  .page-title h1{font-size:15px}
  .page-title p{display:none}
  .theme-text{display:none}
  .theme-btn{padding:0 10px}
  .user-name{display:none}
  .user-chip{padding:0 5px}
  .dash-metrics{margin-left:0;width:100%}
  .metric{flex:1;min-width:0;padding:8px 10px}
  .tbl{min-width:470px}
  .tbl thead th,.tbl tbody td{padding-left:7px;padding-right:7px}
  .set-grid{grid-template-columns:1fr}
  .summary{grid-template-columns:1fr}
  .stu-cards{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .drawer{max-width:none !important}
  .login-card{padding:32px 22px 24px}
  .todo-add{grid-template-columns:1fr}
  .head-actions{width:100%}
  .head-actions .btn{flex:1}
}
@media (max-width:520px){
  .hw-list{grid-template-columns:1fr}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .page-head h2{font-size:17px}
  .entry-grid{grid-template-columns:1fr 1fr}
  .set-form .row{grid-template-columns:1fr}
  .stu-tbl th:last-child,.stu-tbl td:last-child{display:none}
  .stu-tbl{min-width:0}
}

@media (max-width:1080px){
  .an-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .bands{height:150px;gap:6px}
  .band .bl{font-size:9.5px}
  .band .bar span{font-size:11px}
  .batch-bar{flex-wrap:wrap}
}

/* 提醒批量已读 */
.feed-pick{width:16px;height:16px;margin-top:3px;flex:0 0 16px;cursor:pointer}
.feed-selall{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--text-2);cursor:pointer;user-select:none}
.feed-selall input{width:15px;height:15px}
.feed-x{width:22px;height:22px;flex:0 0 22px;border-radius:7px;display:grid;place-items:center;
  color:var(--text-3);font-size:11px;line-height:1;align-self:center;transition:.14s}
.feed-x:hover{background:var(--danger-soft);color:var(--danger)}