/* ========== 主题色 ========== */
:root {
  --bg: #f4f5f1;
  --bg-soft: #f7f7f3;
  --paper: #ffffff;
  --ink: #1f2a26;
  --ink-soft: #5a6660;
  --ink-mute: #8a948f;
  --line: #e6e8e2;
  --line-soft: #eff0eb;
  --green: #2f5d4a;
  --green-2: #3a6f59;
  --green-soft: #e8efe9;
  --green-tag: #d8e5dc;
  --green-tag-ink: #2f5d4a;
  --accent: #c97b3a;
  --accent-soft: #f1e0ce;
  --warn: #b85c3a;
  --warn-soft: #f5e0d3;
  --shadow: 0 1px 2px rgba(20, 30, 25, 0.04), 0 4px 14px rgba(20, 30, 25, 0.04);
  --radius: 14px;
  --radius-sm: 10px;
  --sidebar-w: 240px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; cursor: pointer; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 14px; }

/* ========== 整体布局 ========== */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ========== 侧边栏 ========== */
.sidebar {
  background: #1c2922;
  color: #d8e0db;
  display: flex;
  flex-direction: column;
  padding: 20px 16px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.logo { display: flex; align-items: center; gap: 10px; padding: 4px 6px 18px; border-radius: 8px; cursor: pointer; transition: background 0.15s; }
.logo:hover { background: rgba(255, 255, 255, 0.06); }
.logo-mark {
  width: 36px; height: 36px;
  background: var(--green);
  color: #fff;
  display: grid; place-items: center;
  font-size: 18px; font-weight: 600;
  border-radius: 8px;
  letter-spacing: 1px;
}
.logo-title { color: #fff; font-size: 16px; font-weight: 600; }
.logo-sub { color: #8a948f; font-size: 10px; letter-spacing: 2px; }

.class-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
  margin-bottom: 18px;
}
.class-label { font-size: 11px; color: #8a948f; margin-bottom: 4px; }
.class-name { color: #fff; font-size: 18px; font-weight: 600; }
.class-meta { font-size: 12px; color: #8a948f; margin-top: 4px; }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  color: #c2cac5;
  font-size: 14px;
  position: relative;
  transition: all 0.15s;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.04); color: #fff; }
.nav-item.active {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px; width: 3px;
  background: var(--green-tag-ink);
  border-radius: 2px;
}
.nav-icon {
  width: 22px; height: 22px;
  background: rgba(255, 255, 255, 0.08);
  color: #d8e0db;
  border-radius: 6px;
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 500;
}
.nav-item.active .nav-icon { background: var(--green); color: #fff; }
.nav-badge {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.1);
  color: #d8e0db;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
}
.nav-badge-warn { background: var(--green-tag-ink); color: #fff; }

.sidebar-foot {
  font-size: 11px;
  color: #6e7a74;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 6px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 12px;
  position: relative;
  flex-wrap: wrap;
}
.dot { width: 6px; height: 6px; background: #4d8b6e; border-radius: 50%; }
.sidebar-foot-hint { flex: 1; min-width: 0; }
.sidebar-foot-row { display: flex; gap: 6px; width: 100%; margin-top: 8px; }
.sidebar-btn {
  flex: 1;
  color: #cdd5d0;
  font-size: 12px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  transition: background 0.15s, color 0.15s;
}
.sidebar-btn:hover { background: rgba(255, 255, 255, 0.10); color: #fff; }
/* 底部「设置」下拉菜单（向上弹出） */
.settings-menu {
  position: absolute;
  left: 6px;
  right: 6px;
  bottom: calc(100% + 6px);
  background: #1c2922;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 8px;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.28);
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  z-index: 50;
}
.settings-menu[hidden] { display: none; }
.settings-item {
  display: block;
  width: 100%;
  padding: 9px 14px;
  color: #e2e7e3;
  font-size: 13px;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
  box-sizing: border-box;
  line-height: 1.4;
}
.settings-item:hover { background: rgba(255, 255, 255, 0.08); }
.settings-sep { height: 1px; background: rgba(255, 255, 255, 0.08); margin: 4px 8px; }
.settings-item-danger { color: #c47b6b; }
.settings-item-danger:hover { background: rgba(196, 123, 107, 0.14); }

/* ========== 顶部栏 ========== */
.main { background: var(--bg); display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 36px 14px;
  background: var(--bg);
  position: sticky; top: 0; z-index: 5;
}
.topbar-date { display: flex; flex-direction: column; gap: 2px; }
.date-line { font-size: 12px; color: var(--ink-mute); }
.page-title { font-size: 22px; font-weight: 600; margin: 0; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }

.btn-ghost, .btn-primary, .btn-ai {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
}
.btn-ghost:hover { border-color: #cdd2c8; }
.btn-primary {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}
.btn-primary:hover { background: var(--green-2); border-color: var(--green-2); }
.btn-ai { background: var(--paper); border-color: #d8e5dc; color: var(--green); }
.btn-ai:hover { background: var(--green-soft); }
.ai-tag {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

/* ========== 视图切换 ========== */
.view { display: none; padding: 6px 36px 60px; }
.view.active { display: block; }

/* ========== 今日班级 ========== */
.hero {
  background: linear-gradient(140deg, #2f5d4a 0%, #234c3c 100%);
  color: #fff;
  border-radius: 18px;
  padding: 30px 36px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 28px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -120px; top: -120px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255,255,255,0.06), transparent 70%);
  border-radius: 50%;
}
.hero-left { display: flex; flex-direction: column; justify-content: center; }
.hero-tag {
  font-size: 12px;
  color: #b8d4c4;
  letter-spacing: 1.5px;
  margin-bottom: 14px;
}
.hero-title { font-size: 36px; line-height: 1.25; margin: 0 0 16px; font-weight: 600; }
.hero-desc { color: #b8d4c4; font-size: 14px; margin: 0; }

.hero-right { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.hero-item {
  display: grid;
  grid-template-columns: 36px 1fr 20px;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all 0.15s;
}
.hero-item:hover { background: rgba(255, 255, 255, 0.1); transform: translateX(2px); }
.hero-num { font-size: 20px; color: #7fc4a3; font-weight: 500; }
.hero-item-title { font-size: 16px; font-weight: 500; margin-bottom: 4px; }
.hero-item-sub { font-size: 12px; color: #b8d4c4; }
.hero-item-sub b { color: #fff; }
.hero-arrow { color: #7fc4a3; font-size: 18px; }

/* KPI */
.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.kpi {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border: 1px solid var(--line-soft);
}
.kpi-num { font-size: 36px; font-weight: 600; line-height: 1; }
.kpi-label { font-size: 14px; color: var(--ink-soft); }
.kpi-sub { font-size: 11px; color: var(--ink-mute); width: 100%; text-align: right; margin-top: 4px; position: absolute; right: 22px; }
.kpi { position: relative; }

/* 三栏卡 */
.grid-3 {
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 0.9fr;
  gap: 14px;
  margin-top: 14px;
}
.card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 18px 20px;
  border: 1px solid var(--line-soft);
}
.card-head { display: flex; align-items: center; justify-content: space-between; }
.card-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.card-sub { font-size: 12px; color: var(--ink-mute); margin-top: 2px; margin-bottom: 12px; }
.link { color: var(--green); font-size: 12px; cursor: pointer; }
.link:hover { text-decoration: underline; }

.todo-list, .focus-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.todo-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  background: var(--bg-soft);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.todo-item:hover { background: #efefea; }
.todo-item.done { opacity: 0.55; }
.todo-item.done .todo-title { text-decoration: line-through; }
.todo-check {
  width: 18px; height: 18px;
  border: 1.5px solid #c2cabc;
  border-radius: 5px;
  display: grid; place-items: center;
  background: var(--paper);
  margin-top: 2px;
  flex-shrink: 0;
}
.todo-item.done .todo-check {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}
.todo-body { flex: 1; min-width: 0; }
.todo-title { font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.todo-meta { display: flex; gap: 6px; align-items: center; font-size: 11px; color: var(--ink-mute); }
.tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 4px;
  font-size: 11px;
  background: var(--green-soft);
  color: var(--green);
}
.tag-warn { background: var(--warn-soft); color: var(--warn); }
.tag-accent { background: var(--accent-soft); color: var(--accent); }
.tag-soft { background: #eceeed; color: var(--ink-soft); }

.focus-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-soft);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.focus-item:hover { background: #efefea; }
.focus-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}
.focus-body { flex: 1; min-width: 0; }
.focus-name { font-size: 13px; font-weight: 500; }
.focus-text { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.focus-foot { font-size: 11px; color: var(--ink-mute); margin-top: 4px; }
.focus-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--green-soft);
  color: var(--green);
}
.focus-status.warn { background: var(--warn-soft); color: var(--warn); }
.focus-status.accent { background: var(--accent-soft); color: var(--accent); }

/* AI 卡片 */
.ai-card { background: var(--green-soft); border: 1px solid #d8e5dc; }
.ai-head { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--green); margin-bottom: 14px; }
.ai-title { font-size: 20px; line-height: 1.4; margin: 0 0 10px; color: var(--ink); }
.ai-desc { font-size: 13px; color: var(--ink-soft); margin: 0 0 14px; line-height: 1.6; }
.ai-link { color: var(--green); font-weight: 500; }

/* ========== 学生页 ========== */
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.page-head h2 { margin: 0 0 2px; font-size: 20px; font-weight: 600; }
.muted { color: var(--ink-mute); font-size: 12px; }
.page-head-actions { display: flex; gap: 8px; align-items: center; }
.input {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 8px 12px;
  border-radius: 10px;
  outline: none;
  min-width: 240px;
  color: var(--ink);
}
.input:focus { border-color: var(--green); }

.students-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 16px;
}
.student-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background: var(--paper);
  border-radius: var(--radius);
  padding: 14px;
  border: 1px solid var(--line-soft);
}
.student-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 10px;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  position: relative;
}
.student-cell:hover { background: var(--bg-soft); }
.student-cell.active {
  background: var(--green-soft);
  border-color: #cfe1d6;
}
.student-cell.active::after {
  content: '';
  position: absolute;
  left: -1px; top: 12px; bottom: 12px;
  width: 3px;
  background: var(--green);
  border-radius: 0 2px 2px 0;
}
.s-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}
.s-info { flex: 1; min-width: 0; }
.s-name { font-size: 14px; font-weight: 500; }
.s-meta { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }
.s-status { font-size: 11px; }

.student-detail {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid var(--line-soft);
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
}
.detail-head { display: flex; gap: 14px; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--line-soft); }
.detail-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
  font-size: 18px;
  font-weight: 500;
}
.detail-name { font-size: 18px; font-weight: 600; }
.detail-sub { font-size: 12px; color: var(--ink-mute); margin-top: 2px; }
.detail-remove { margin-left: auto; font-size: 12px; color: var(--ink-mute); cursor: pointer; }
.detail-remove:hover { color: var(--warn); }
.detail-tabs { display: flex; gap: 2px; margin-top: 16px; border-bottom: 1px solid var(--line-soft); }
.detail-tab {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--ink-mute);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
}
.detail-tab.active { color: var(--green); border-color: var(--green); }
.detail-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; }
.stat-box { text-align: center; padding: 10px; background: var(--bg-soft); border-radius: 8px; }
.stat-num { font-size: 22px; font-weight: 600; }
.stat-label { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }
.timeline { margin-top: 18px; position: relative; padding-left: 18px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 5px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--line);
}
.t-item { position: relative; padding-bottom: 16px; }
.t-item::before {
  content: '';
  position: absolute;
  left: -16px; top: 4px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--green);
}
.t-item.support::before { background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.t-item.comm::before { background: #6b8aa3; box-shadow: 0 0 0 1px #6b8aa3; }
.t-time { font-size: 11px; color: var(--ink-mute); }
.t-title { font-size: 13px; font-weight: 500; margin-top: 2px; }
.t-desc { font-size: 12px; color: var(--ink-soft); margin-top: 4px; line-height: 1.6; }
.detail-section h4 { font-size: 13px; margin: 18px 0 8px; color: var(--ink-soft); font-weight: 500; }
.support-mini {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 12px;
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.support-mini b { color: var(--ink); }
.empty { padding: 60px 20px; text-align: center; color: var(--ink-mute); font-size: 13px; }

/* ========== 班级事务 ========== */
.page-head-banner {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-top: 6px;
  margin-bottom: 16px;
  border: 1px solid var(--line-soft);
}
.banner-tag {
  font-size: 11px;
  color: var(--green);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}
.page-head-banner h2 { margin: 0 0 4px; font-size: 22px; }
.page-head-banner p { margin: 0; }

.table {
  background: var(--paper);
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
}
.table-head { border-radius: var(--radius) var(--radius) 0 0; }
.table-row:last-child { border-radius: 0 0 var(--radius) var(--radius); }
.table-head, .table-row {
  display: grid;
  grid-template-columns: 44px 1fr 90px 110px 130px 110px 90px;
  align-items: center;
  padding: 14px 20px;
  font-size: 13px;
}
.table-head { background: var(--bg-soft); color: var(--ink-mute); font-size: 12px; }
.table-row { border-top: 1px solid var(--line-soft); }
.table-row:hover { background: var(--bg-soft); }
.table-row .t-check {
  width: 18px; height: 18px;
  border: 1.5px solid #c2cabc;
  border-radius: 5px;
  display: grid; place-items: center;
  background: var(--paper);
  cursor: pointer;
}
.table-row .t-check.done { background: var(--green); border-color: var(--green); color: #fff; }
.task-status-select {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 12px;
  background: var(--paper);
  color: var(--ink-soft);
  outline: none;
  cursor: pointer;
}
.task-status-select:focus { border-color: var(--green); }
.task-status-select.done { background: var(--green-soft); color: var(--green); border-color: transparent; }
.task-status-select.doing { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.task-status-select.todo { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.t-ops { position: relative; }
.t-ops-btn {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  border-radius: 6px;
  width: 28px; height: 24px;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.t-ops-btn:hover { border-color: #cdd2c8; color: var(--ink); background: var(--bg-soft); }
.t-ops-menu {
  display: none;
  position: absolute;
  right: 0; top: calc(100% + 4px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(20, 30, 25, 0.12);
  min-width: 92px;
  padding: 4px;
  z-index: 20;
}
.t-ops.open .t-ops-menu { display: block; }
.t-ops.open .t-ops-btn { border-color: var(--green); color: var(--green); background: var(--green-soft); }
.t-ops-menu .mi {
  padding: 7px 12px;
  font-size: 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--ink-soft);
  white-space: nowrap;
}
.t-ops-menu .mi:hover { background: var(--green-soft); color: var(--green); }
.t-ops-menu .mi.del:hover { background: var(--warn-soft); color: var(--warn); }
.status-pill { font-size: 11px; padding: 2px 8px; border-radius: 4px; display: inline-block; }
.status-pill.todo { background: var(--warn-soft); color: var(--warn); }
.status-pill.done { background: var(--green-soft); color: var(--green); }
.status-pill.doing { background: var(--accent-soft); color: var(--accent); }

/* ========== 关注与支持 ========== */
.support-list { display: flex; flex-direction: column; gap: 10px; }
.support-row {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: grid;
  grid-template-columns: 200px 1fr 1.2fr 120px;
  gap: 16px;
  align-items: center;
  border: 1px solid var(--line-soft);
  cursor: pointer;
  transition: all 0.15s;
}
.support-row:hover { border-color: #cfe1d6; background: #fbfcfa; box-shadow: var(--shadow); }
.support-row.has-plan { border-left: 3px solid var(--green); }
.support-row:not(.has-plan) .support-name { color: var(--ink-soft); }
.support-row:not(.has-plan) .s-avatar { opacity: 0.55; }
.support-row .muted { font-size: 12px; }
.support-student { display: flex; align-items: center; gap: 10px; }
.support-name { font-size: 14px; font-weight: 500; }
.support-date { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }
.support-col h5 { font-size: 11px; color: var(--ink-mute); margin: 0 0 4px; font-weight: 400; }
.support-col p { font-size: 13px; margin: 0; color: var(--ink); }
.support-select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 10px;
  background: var(--paper);
  font-size: 12px;
  color: var(--ink-soft);
  outline: none;
  cursor: pointer;
}

/* ========== 沟通与协同 ========== */
.comm-picker {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 14px;
}
.comm-picker-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.comm-picker-head h4 { margin: 0; font-size: 14px; font-weight: 600; }
.comm-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.comm-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  padding: 4px 12px 4px 5px;
  cursor: pointer;
  transition: all 0.15s;
}
.comm-chip:hover { border-color: var(--green); background: var(--green-soft); transform: translateY(-1px); }
.comm-chip .s-avatar { width: 26px; height: 26px; font-size: 12px; }
.comm-chip-name { font-size: 13px; color: var(--ink); }
.comm-chip-count {
  font-size: 10px;
  background: #eceeed;
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 1px 7px;
}
.comm-chip-count.draft { background: var(--accent-soft); color: var(--accent); }
.comm-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 4px 2px 10px;
}
.picker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.picker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 13px;
}
.picker-item:hover { border-color: var(--green); background: var(--green-soft); }
.comm-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.comm-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 18px 20px;
  border: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.comm-head { display: flex; align-items: center; gap: 12px; }
.comm-avatar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: #fff; }
.comm-name { font-size: 15px; font-weight: 500; }
.comm-topic { font-size: 12px; color: var(--ink-mute); }
.comm-pill {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}
.comm-pill.draft { background: var(--accent-soft); color: var(--accent); }
.comm-pill.sent { background: var(--green-soft); color: var(--green); }
.comm-pill.follow { background: #e3e8ee; color: #4a627a; }
.comm-body {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.7;
  max-height: 160px;
  overflow-y: auto;
  white-space: pre-wrap;
}
.comm-foot { display: flex; align-items: center; justify-content: space-between; }
.comm-foot .follow { font-size: 11px; color: var(--ink-mute); }
.comm-actions { display: flex; gap: 6px; }
.btn-mini {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
}
.btn-mini:hover { border-color: #cdd2c8; color: var(--ink); }
.btn-mini.primary { background: var(--green-soft); border-color: #d8e5dc; color: var(--green); }
.btn-mini.primary:hover { background: #d8e5dc; }

/* ========== 周报 ========== */
.weekly-card {
  background: var(--paper);
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}
.weekly-head {
  padding: 18px 24px;
  background: linear-gradient(140deg, #2f5d4a 0%, #234c3c 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.weekly-title { font-size: 16px; font-weight: 600; }
.weekly-range { font-size: 12px; color: #b8d4c4; }
.weekly-body { padding: 24px; font-size: 14px; line-height: 1.8; }
.weekly-body h3 { font-size: 15px; margin: 18px 0 8px; color: var(--green); }
.weekly-body h3:first-child { margin-top: 0; }
.weekly-body ul { padding-left: 20px; margin: 6px 0; }
.weekly-body li { margin-bottom: 4px; }

/* ========== 模态框 ========== */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  align-items: center;
  justify-content: center;
}
.modal.show { display: flex; }
.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(20, 30, 25, 0.4);
  backdrop-filter: blur(2px);
}
.modal-panel {
  position: relative;
  background: var(--paper);
  border-radius: 16px;
  width: 640px;
  max-width: 92vw;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; border-bottom: 1px solid var(--line-soft); }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-close { background: none; border: none; font-size: 22px; color: var(--ink-mute); cursor: pointer; }
.modal-body { padding: 20px 24px; overflow-y: auto; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 12px; color: var(--ink-soft); margin-bottom: 6px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  outline: none;
  background: var(--paper);
  color: var(--ink);
}
.form-row textarea { resize: vertical; min-height: 80px; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--green); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.imp-mode { display: flex; flex-direction: column; gap: 8px; }
.imp-mode-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.imp-mode-item:hover { border-color: #cdd2c8; }
.imp-mode-item:has(input:checked) { border-color: var(--green); background: var(--green-soft); }
.imp-mode-item input { margin-top: 3px; accent-color: var(--green); }
.imp-mode-title { font-size: 13px; font-weight: 500; color: var(--ink); }
.imp-mode-sub { font-size: 11px; color: var(--ink-mute); margin-top: 2px; line-height: 1.5; }
.form-foot { display: flex; gap: 8px; justify-content: flex-end; padding-top: 12px; border-top: 1px solid var(--line-soft); margin-top: 12px; }
.info-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--ink-soft);
  margin-right: 6px;
  margin-bottom: 6px;
}
.info-pill b { color: var(--ink); }

/* AI 生成区 */
.ai-gen {
  background: var(--green-soft);
  border: 1px solid #d8e5dc;
  border-radius: 10px;
  padding: 12px 14px;
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ai-gen .ai-tag { flex-shrink: 0; }
.ai-gen-text { font-size: 12px; color: var(--ink-soft); flex: 1; }
.ai-gen button { flex-shrink: 0; }

.ai-output {
  margin-top: 0;
  background: var(--paper);
  border: 1px dashed #cfe1d6;
  border-radius: 10px;
  padding: 14px;
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-wrap;
  color: var(--ink);
  min-height: 160px;
  position: relative;
  width: 100%;
  display: block;
  font-family: inherit;
  resize: vertical;
  outline: none;
  box-sizing: border-box;
}
.ai-output:focus { border-color: var(--green); background: #fdfefd; }
.ai-output::before { content: none; }
.ai-output-hint {
  display: inline-block;
  background: var(--green);
  color: #fff;
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 12px;
  margin-bottom: -6px;
  position: relative;
  z-index: 1;
}

/* ========== AI 侧边栏 ========== */
.ai-panel {
  position: fixed;
  top: 0; right: -420px;
  width: 400px;
  height: 100vh;
  background: var(--paper);
  border-left: 1px solid var(--line);
  z-index: 30;
  display: flex;
  flex-direction: column;
  transition: right 0.3s ease;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.04);
}
.ai-panel.show { right: 0; }
.ai-panel-head {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ai-panel-title { font-size: 15px; font-weight: 600; margin-left: 4px; }
.ai-head-row { display: flex; align-items: center; justify-content: space-between; flex: 1; min-width: 0; }
.ai-head-title { display: flex; align-items: center; min-width: 0; }
.ai-drag { display: none; }
.ai-panel-head button { background: none; border: none; font-size: 20px; color: var(--ink-mute); cursor: pointer; }
.ai-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 18px;
  background: var(--bg-soft);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ai-msg { display: flex; flex-direction: column; max-width: 88%; }
.ai-msg-role { font-size: 11px; color: var(--ink-mute); margin-bottom: 4px; }
.ai-msg-text {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
}
.ai-msg.user { align-self: flex-end; }
.ai-msg.user .ai-msg-text {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}
.ai-msg.user .ai-msg-role { text-align: right; }
.ai-panel-foot {
  border-top: 1px solid var(--line-soft);
  padding: 12px 14px;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: var(--paper);
}
.ai-panel-foot textarea {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  outline: none;
  resize: none;
  background: var(--paper);
  color: var(--ink);
}
.ai-panel-foot textarea:focus { border-color: var(--green); }

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  .grid-3 { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; }
  .students-layout { grid-template-columns: 1fr; }
  .student-detail { position: static; max-height: none; }
  .student-grid { grid-template-columns: repeat(2, 1fr); }
  .comm-grid { grid-template-columns: 1fr; }
  .picker-grid { grid-template-columns: repeat(2, 1fr); }
  .support-row { grid-template-columns: 1fr; }
  .table-head, .table-row { grid-template-columns: 36px 1fr 110px 100px 80px; }
  .table-head > div:nth-child(3), .table-row > div:nth-child(3),
  .table-head > div:nth-child(4), .table-row > div:nth-child(4) { display: none; }
}
@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .student-grid { grid-template-columns: 1fr; }
  .view { padding: 6px 18px 60px; }
  .topbar { padding: 16px 18px 8px; }
  .hero { padding: 22px; }
  .hero-title { font-size: 28px; }
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d4d8d2; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #b8beb8; }

/* ========== 协作与同组教师 ========== */
.collab-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}
.board-cell {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.board-cell.warn { border-color: #e8cbb8; background: #fdf9f5; }
.board-num { font-size: 26px; font-weight: 600; line-height: 1; }
.board-cell.warn .board-num { color: var(--warn); }
.board-label { font-size: 12px; color: var(--ink-soft); }
.board-sub { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }

.collab-wait { margin-bottom: 14px; }
.wait-row {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  font-size: 13px;
}
.wait-teacher { font-weight: 500; white-space: nowrap; }
.wait-topic { color: var(--ink-soft); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wait-date { font-size: 11px; color: var(--ink-mute); white-space: nowrap; }

.collab-cols {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 14px;
  align-items: start;
}
.teacher-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.teacher-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-soft);
  border-radius: 10px;
  transition: background 0.15s;
}
.teacher-row:hover { background: #efefea; }
.teacher-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
  font-size: 14px;
  flex-shrink: 0;
}
.teacher-info { flex: 1; min-width: 0; }
.teacher-name { font-size: 14px; font-weight: 500; }
.teacher-meta { font-size: 11px; color: var(--ink-mute); margin-top: 2px; }
.teacher-ops { display: flex; gap: 4px; }
.teacher-ops .op {
  font-size: 11px;
  color: var(--ink-mute);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.teacher-ops .op:hover { color: var(--green); background: var(--green-soft); }
.teacher-ops .op.del:hover { color: var(--warn); background: var(--warn-soft); }

.collab-list { display: flex; flex-direction: column; gap: 10px; }
.collab-item {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 12px 14px;
  background: var(--bg-soft);
}
.collab-item-head { display: flex; align-items: center; gap: 10px; }
.collab-item-title { font-size: 13px; font-weight: 500; flex: 1; min-width: 0; }
.collab-item-body {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-top: 8px;
  white-space: pre-wrap;
  max-height: 110px;
  overflow-y: auto;
}
.collab-item-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  color: var(--ink-mute);
}
.collab-item-foot .ops { display: flex; gap: 6px; }

@media (max-width: 1100px) {
  .collab-board { grid-template-columns: repeat(2, 1fr); }
  .collab-cols { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .collab-board { grid-template-columns: 1fr; }
  .wait-topic { white-space: normal; }
}

/* ---------- 出勤与交接 ---------- */
.att-grid { display:grid; grid-template-columns:1.25fr 1fr; gap:16px; }
@media(max-width:800px){ .att-grid{ grid-template-columns:1fr; } }
.att-list { display:flex; flex-direction:column; gap:2px; }
.att-row { display:flex; align-items:center; gap:10px; padding:8px 6px; border-bottom:1px solid var(--line); }
.att-name { flex:1; font-weight:600; color:#1a2230; }
.att-status { display:flex; gap:6px; }
.att-btn { border:1px solid #d8dee6; background:#fff; color:#5a6678; border-radius:6px; padding:4px 10px; font-size:12px; cursor:pointer; }
.att-btn:hover { border-color:#2f5d4a; color:#2f5d4a; }
.att-btn.active { background:#2f5d4a; color:#fff; border-color:#2f5d4a; }
.att-note { width:160px; font-size:12px; color:#5a6678; text-align:right; }
.leave-row { padding:8px 6px; border-bottom:1px solid var(--line); color:#1a2230; }

/* ---------- 事件与风险 ---------- */
.risk-board { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:16px; }
@media(max-width:800px){ .risk-board{ grid-template-columns:repeat(2,1fr); } }
.board-cell.danger { background:#fdecec; border-color:#f0c9c0; }
.board-cell.danger .board-num, .board-cell.danger .board-label { color:#cf5b4a; }
.risk-list { display:flex; flex-direction:column; gap:12px; }
.risk-card { background:#fff; border:1px solid var(--line); border-radius:12px; padding:14px; border-left:4px solid #3a6f59; }
.risk-card.urgent { border-left-color:#cf5b4a; background:#fff7f6; }
.risk-card-head { display:flex; align-items:center; gap:10px; }
.risk-level { font-size:12px; padding:2px 8px; border-radius:999px; color:#fff; }
.lv-normal { background:#3a6f59; } .lv-warn { background:#c97b3a; } .lv-danger { background:#cf5b4a; }
.risk-title { font-weight:700; flex:1; color:#1a2230; }
.risk-stu { margin-top:6px; color:#5a6678; font-size:13px; }
.risk-desc { margin-top:8px; color:#1a2230; }
.risk-urgent-box { margin-top:10px; background:#fff; border:1px dashed #f0c9c0; border-radius:10px; padding:10px 12px; font-size:13px; color:#1a2230; display:flex; flex-direction:column; gap:4px; }
.risk-foot { margin-top:10px; display:flex; gap:8px; }

/* ---------- 班级运行 ---------- */
.run-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
@media(max-width:800px){ .run-grid{ grid-template-columns:1fr; } }
.run-pre { white-space:pre-wrap; background:#f6f8fa; border-radius:8px; padding:10px; font-family:monospace; font-size:13px; color:#1a2230; }
.seat-grid { display:flex; flex-direction:column; gap:8px; }
.seat-row { display:flex; gap:8px; flex-wrap:wrap; }
.seat { background:#eef2f0; border:1px solid #d8dee6; border-radius:8px; padding:8px 12px; font-size:13px; color:#1a2230; }
.role-list { display:flex; flex-direction:column; gap:8px; }
.role-row { display:flex; gap:10px; padding:8px; border-bottom:1px solid var(--line); }
.role-name { font-weight:700; color:#1a2230; min-width:90px; }
.role-holder { color:#3a6f59; min-width:80px; }
.role-duty { color:#5a6678; flex:1; }

/* ---------- 合规检查 ---------- */
.compliance-warn { margin-top:10px; background:#fff7ed; border:1px solid #f0c89a; border-radius:10px; padding:10px 12px; font-size:13px; color:#8a5a1f; }
.compliance-warn ul { margin:6px 0 0; padding-left:18px; }

/* ---------- 学生详情操作 ---------- */
.detail-ops { display:flex; gap:10px; }
.detail-edit, .detail-remove { font-size:12px; cursor:pointer; padding:4px 8px; border-radius:6px; }
.detail-edit { color:#3a6f59; background:#eef2f0; }
.detail-remove { color:#cf5b4a; background:#fdecec; }
.detail-edit:hover, .detail-remove:hover { opacity:.8; }

/* ---------- 首页出勤异常卡片 ---------- */
.att-alert { display:flex; align-items:center; gap:14px; background:#fff7f6; border:1px solid #f0c9c0; border-radius:12px; padding:14px 18px; margin-bottom:16px; }
.att-alert-icon { width:34px; height:34px; border-radius:9px; background:#cf5b4a; color:#fff; display:grid; place-items:center; font-size:14px; font-weight:600; }
.att-alert-body { flex:1; }
.att-alert-title { font-weight:700; color:#1a2230; }
.att-alert-sub { color:#8a5a1f; font-size:13px; margin-top:2px; }
.att-alert-sub b { color:#cf5b4a; }

/* ---------- 模块筛选与统计卡 ---------- */
.hw-filter { display:flex; align-items:center; gap:10px; margin:16px 0 12px; font-size:13px; color:#5a6678; }
.hw-filter select { padding:6px 10px; border:1px solid var(--line); border-radius:8px; }
.hw-subcards { display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:10px; margin-bottom:16px; }
.stat-card { background:var(--paper); border:1px solid var(--line-soft); border-radius:10px; padding:10px 12px; }
.stat-name { font-weight:600; color:#1a2230; font-size:13px; }
.stat-card .stat-num { font-size:13px; font-weight:400; color:#5a6678; margin-top:4px; }
.stat-card .stat-num b { font-size:15px; color:#1a2230; margin:0 2px; }
.stat-card .ok { color:#3a6f59; }
.stat-card .danger { color:#cf5b4a; }
.stat-card .warn { color:#c97b3a; }

/* ---------- CSV 模板勾选 ---------- */
.tpl-chks { display:flex; flex-direction:column; gap:2px; margin:8px 0; }

/* ---------- 模块表格列宽 ---------- */
.tbl-perf .table-head, .tbl-perf .table-row { grid-template-columns: 44px 1fr 120px 100px 1.6fr 90px; }
.tbl-grade .table-head, .tbl-grade .table-row { grid-template-columns: 44px 1fr 100px 120px 90px 120px 90px; }

/* ---------- 模块设置勾选 ---------- */
.tpl-chk { display:flex; align-items:center; gap:8px; padding:7px 10px; border:1px solid var(--line); border-radius:8px; font-size:13px; color:#1a2230; cursor:pointer; }
.tpl-chk:hover { background:#f6f8fa; }

/* ---------- 周报脱敏提示 ---------- */
.wk-scope { display:inline-block; font-size:12px; font-weight:600; padding:4px 10px; border-radius:999px; margin-bottom:8px; }
.wk-scope-public { background:#eef2f0; color:#3a6f59; }
.wk-scope-internal { background:#fff7ed; color:#8a5a1f; border:1px solid #f0c89a; }
.wk-hr { border:none; border-top:1px dashed var(--line); margin:18px 0; }

/* =========================================================
 * 手机本地版（移动端响应式 · 断点 ≤820px）
 * 桌面端完全不受影响：以下规则仅在窄屏生效。
 * ========================================================= */
.btn-menu { display:none; }
.sidebar-close { display:none; }
.bottom-nav { display:none; }
.drawer-mask { display:none; }

@media (max-width: 820px) {
  /* 1. 单列布局：侧边栏脱离文档流，主区占满 */
  .app { grid-template-columns: 1fr; }

  /* 2. 侧边栏变为左侧抽屉 */
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: 82%; max-width: 330px; z-index: 60;
    transform: translateX(-100%); transition: transform .25s ease;
    box-shadow: 2px 0 20px rgba(0,0,0,.25);
    padding: 16px 14px 12px;
    overflow: hidden; /* 抽屉容器不滚动，由内部 .nav 滚动；让 footer 始终可见 */
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close {
    display: block; position: absolute; top: 12px; right: 12px;
    width: 34px; height: 34px; border-radius: 9px; border: none;
    background: rgba(255,255,255,.12); color: #fff; font-size: 22px; line-height: 1;
    cursor: pointer;
  }
  /* 中间导航可滚动，底部"设置/退出"始终可见 */
  .nav { flex: 1 1 auto; min-height: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; }
  .sidebar-foot { flex: 0 0 auto; margin-top: auto; }
  .drawer-mask {
    display: none; position: fixed; inset: 0; z-index: 55;
    background: rgba(0,0,0,.45);
  }
  .drawer-mask.show { display: block; }

  /* 3. 顶栏加汉堡按钮，按钮缩小防溢出 */
  .topbar { padding: 10px 12px; gap: 8px; flex-wrap: wrap; }
  .btn-menu {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line);
    background: #fff; color: #2f5d4a; font-size: 20px; cursor: pointer; margin-right: 4px;
  }
  .topbar-actions { gap: 6px; flex-wrap: wrap; }
  .topbar-actions .btn-primary,
  .topbar-actions .btn-ghost,
  .topbar-actions .btn-ai { font-size: 12px; padding: 8px 10px; }
  .page-title { font-size: 18px; }

  /* 4. 底部固定导航 Tab */
  .bottom-nav {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    background: #fff; border-top: 1px solid var(--line);
    padding: 6px 2px calc(6px + env(safe-area-inset-bottom));
  }
  .bn-item {
    flex: 1; background: none; border: none; cursor: pointer;
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 5px 2px; color: #5a6678; font-size: 11px; -webkit-tap-highlight-color: transparent;
  }
  .bn-ico {
    width: 28px; height: 28px; border-radius: 9px; background: #eef2f0; color: #3a6f59;
    display: grid; place-items: center; font-size: 14px; font-weight: 600;
  }
  .bn-item.active { color: #2f5d4a; }
  .bn-item.active .bn-ico { background: #2f5d4a; color: #fff; }
  .bn-ai .bn-ico { background: #2f5d4a; color: #fff; }

  /* 5. 内容区单列 + 底部留白避开 Tab */
  .view { padding: 12px 14px calc(92px + env(safe-area-inset-bottom)); }
  .grid-3,
  .students-layout,
  .hero,
  .collab-cols,
  .att-grid,
  .run-grid,
  .hw-subcards,
  .grade-subcards,
  .comm-picker,
  .teacher-grid { grid-template-columns: 1fr !important; }
  .kpis { grid-template-columns: repeat(2, 1fr) !important; }
  .page-head { flex-wrap: wrap; gap: 10px; }
  .page-head-actions { flex-wrap: wrap; }
  .hero-left { padding: 4px 0 12px; }
  .hero-title { font-size: 22px; }

  /* 6. 多列表格 → 卡片（依赖 JS 注入的 data-label） */
  .table { background: transparent; border: none; }
  .table-head { display: none; }
  .table-row {
    display: block; padding: 12px; margin-bottom: 10px;
    border: 1px solid var(--line); border-radius: 12px; background: #fff;
  }
  .table-row > div {
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    padding: 5px 0; font-size: 13px; text-align: right;
  }
  .table-row > div::before {
    content: attr(data-label); color: var(--ink-mute); font-size: 12px;
    text-align: left; flex: 0 0 auto; max-width: 42%;
  }
  .table-row > div:first-child { justify-content: flex-start; padding-top: 0; }
  .table-row > div:first-child::before { display: none; }
  .table-row .t-ops { justify-content: flex-end; }

  /* 7. 弹窗 → 底部抽屉 */
  .modal-panel {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto;
    width: 100%; max-width: 100%; max-height: 90vh; margin: 0;
    border-radius: 16px 16px 0 0; animation: sheetUp .25s ease;
  }
  @keyframes sheetUp { from { transform: translateY(20px); opacity: .6; } to { transform: translateY(0); opacity: 1; } }

  /* 8. AI 面板 → 全屏底部抽屉（z 高于底栏/抽屉/弹窗；transform 切换，杜绝 right 偏移错乱） */
  .ai-panel {
    top: auto; left: 0; right: 0; bottom: 0;
    width: 100%; max-width: 100%;
    height: 100vh; height: 100dvh;
    z-index: 80;
    border-left: none;
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.18);
    transform: translateY(100%);
    transition: transform 0.28s ease;
  }
  .ai-panel.show { right: 0; transform: translateY(0); }
  .ai-panel-head {
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: calc(10px + env(safe-area-inset-top)) 16px 8px;
    border-bottom: none;
  }
  .ai-drag {
    display: block; width: 40px; height: 4px; border-radius: 2px;
    background: #d8dee6; margin: 0 auto 6px;
  }
  .ai-panel-head button {
    width: 44px; height: 44px; font-size: 22px; border-radius: 10px;
    display: grid; place-items: center; margin-right: -8px;
  }
  .ai-panel-head button:active { background: #eef2f0; }
  .ai-panel-body { padding: 6px 16px 12px; }
  .ai-panel-foot { padding: 12px 14px calc(12px + env(safe-area-inset-bottom)); }
  /* 面板打开时隐藏底部 Tab，避免遮挡输入区 */
  body.ai-open .bottom-nav { display: none; }

  /* 9. 通用触控目标与间距 */
  .btn-primary, .btn-ghost, .btn-ai, .sidebar-btn { min-height: 40px; }
  .nav-item { min-height: 44px; }
  input, textarea, select { font-size: 16px; } /* 防 iOS 聚焦缩放 */
  .form-row { flex-direction: column; align-items: stretch; gap: 6px; }
  .form-row label { min-width: 0; }
}

/* ========== 学生积分 ========== */
.pts-summary { display: flex; gap: 12px; margin: 14px 0; flex-wrap: wrap; }
.pts-stat { flex: 1; min-width: 120px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.pts-stat-num { font-size: 24px; font-weight: 500; color: var(--green); }
.pts-stat-label { font-size: 12px; color: var(--ink-mute); margin-top: 2px; }
.pts-hint { font-size: 12px; color: var(--ink-mute); margin: 0 0 12px; }
.pts-rank { display: flex; flex-direction: column; gap: 8px; }
.pts-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 14px;
}
.pts-rankno { width: 26px; height: 26px; border-radius: 8px; background: var(--bg-soft); color: var(--ink-mute); display: grid; place-items: center; font-size: 13px; font-weight: 500; flex-shrink: 0; }
.pts-row:first-child .pts-rankno { background: #2f5d4a; color: #fff; }
.pts-row:nth-child(2) .pts-rankno { background: #5e6e7a; color: #fff; }
.pts-row:nth-child(3) .pts-rankno { background: #c97b3a; color: #fff; }
.pts-ava { width: 34px; height: 34px; border-radius: 50%; color: #fff; display: grid; place-items: center; font-size: 15px; flex-shrink: 0; }
.pts-info { flex: 1; min-width: 0; }
.pts-name { font-size: 14px; font-weight: 500; color: var(--ink); }
.pts-group { font-size: 11px; color: var(--ink-mute); }
.pts-num { font-size: 18px; font-weight: 500; color: var(--green); min-width: 44px; text-align: right; }
.pts-num.pts-neg { color: #c0392b; }
.pts-week { font-size: 11px; color: var(--ink-mute); min-width: 64px; text-align: right; }
.pts-ops { display: flex; gap: 6px; }
.pts-btn {
  min-width: 40px; height: 32px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; font-size: 13px; cursor: pointer; padding: 0 8px;
}
.pts-btn.pts-add { color: #2f5d4a; border-color: #cfe3da; background: #f2f8f5; }
.pts-btn.pts-sub { color: #c0392b; border-color: #f0d4d0; background: #fdf5f4; }
.pts-btn.pts-more { color: var(--ink-mute); }
.pts-btn:active { transform: scale(0.96); }

/* 加减分弹窗 */
.pts-modal .pts-cur { font-size: 13px; color: var(--ink-soft); margin-bottom: 12px; }
.pts-modal .pts-cur b { font-size: 18px; color: var(--green); margin: 0 2px; }
.pts-modal .pts-cur b.pts-neg { color: #c0392b; }
.pts-mode { display: flex; gap: 8px; margin-bottom: 12px; }
.pts-mode-btn {
  flex: 1; height: 40px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; font-size: 14px; cursor: pointer; color: var(--ink-mute);
}
.pts-mode-btn.active { border-color: #2f5d4a; background: #2f5d4a; color: #fff; }
.pts-quick { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.pts-qbtn {
  min-width: 56px; height: 40px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg-soft); font-size: 15px; font-weight: 500; color: var(--green); cursor: pointer;
}
.pts-qbtn:active { background: #e3f0ea; }
.pts-custom-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 13px; color: var(--ink-mute); }
.pts-custom-row input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 15px; }
.pts-reasons { display: flex; gap: 8px; flex-wrap: wrap; }
.pts-reason {
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; font-size: 12px; color: var(--ink); cursor: pointer;
}
.pts-reason.active { border-color: #2f5d4a; background: #2f5d4a; color: #fff; }

/* 我的学生卡片积分 */
.student-cell .s-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.s-pts {
  font-size: 13px; font-weight: 500; color: var(--green);
  background: #f2f8f5; border: 1px solid #cfe3da; border-radius: 999px;
  padding: 2px 10px; min-width: 40px; text-align: center;
}
.s-pts.pts-neg { color: #c0392b; background: #fdf5f4; border-color: #f0d4d0; }

/* 学生积分：移动端适配 */
@media (max-width: 820px) {
  .pts-row { flex-wrap: wrap; gap: 8px 10px; padding: 12px; }
  .pts-info { flex: 1 1 auto; }
  .pts-num { min-width: 0; }
  .pts-week { min-width: 0; }
  .pts-ops { width: 100%; justify-content: flex-end; }
  .pts-btn { min-width: 44px; height: 36px; }
  .pts-stat { min-width: 100px; padding: 12px; }
  .pts-stat-num { font-size: 20px; }
}