* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--app-bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; }

/* ---------- Layout ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--paper-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  z-index: 20;
}
.sidebar.collapsed { width: 64px; flex-basis: 64px; }
/* 侧栏底部账户区：头像 + 用户名 + 角色 */
.sidebar-foot { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-top: 1px solid var(--border); cursor: pointer; transition: background .12s; }
.sidebar-foot:hover { background: var(--paper); }
.sidebar-foot .avatar { width: 30px; height: 30px; font-size: 12px; flex: 0 0 30px; }
.sidebar-foot .sidebar-name { font-size: 13px; font-weight: 500; color: var(--text); line-height: 1.3; }
.sidebar-foot .sidebar-role { font-size: 12px; color: var(--text-weak); margin-top: 2px; }
.sidebar.collapsed .sidebar-foot { justify-content: center; padding: 12px 8px; }
.sidebar.collapsed .sidebar-foot .sidebar-user { display: none; }
.sidebar.collapsed .sidebar-foot .avatar { margin: 0; }
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px; height: var(--topbar-h);
  border-bottom: 1px solid var(--border);
  font-weight: 700; font-size: 16px;
}
.brand .logo {
  width: 30px; height: 30px; border-radius: 9px; flex: 0 0 30px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff; display: grid; place-items: center; font-weight: 800;
}
.brand .name { white-space: nowrap; overflow: hidden; letter-spacing: 2px; }
.brand .brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand .brand-sub { font-size: 10px; color: var(--text-faint); letter-spacing: 2px; margin-top: 2px; white-space: nowrap; }
.sidebar.collapsed .brand .name, .sidebar.collapsed .brand-sub, .sidebar.collapsed .nav-label { display: none; }

.nav { padding: 10px; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: var(--radius-sm);
  color: var(--text-weak); cursor: pointer; margin-bottom: 4px;
  font-weight: 500; white-space: nowrap; transition: .15s;
  border: 1px solid transparent; position: relative;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--accent-weak); color: var(--accent-strong); font-weight: 700; }
/* active 项左侧指示条：强化当前位置的视觉锚点 */
.nav-item.active::before {
  content: ''; position: absolute; left: -10px; top: 22%; bottom: 22%; width: 2px;
  border-radius: 2px; background: var(--accent-strong);
}
.nav-item { letter-spacing: .5px; }
.nav-item .ic { width: 20px; text-align: center; flex: 0 0 20px; font-size: 16px; }
.sidebar.collapsed .nav-item { justify-content: center; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: var(--topbar-h); flex: 0 0 var(--topbar-h);
  background: var(--app-bg); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 14px; padding: 0 20px;
  position: sticky; top: 0; z-index: 15;
}
.topbar .search {
  flex: 1; max-width: 420px; position: relative;
}
.topbar .search input {
  width: 100%; padding: 9px 12px 9px 34px; border-radius: 999px;
  border: 1px solid var(--input-border, var(--border)); background: var(--surface-2); color: var(--text);
  outline: none;
}
.topbar .search input:focus { border-color: var(--accent); background: var(--surface); }
.topbar .search .si { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-faint); }
.topbar .spacer { flex: 1; }
.topbar .user { display: flex; align-items: center; gap: 8px; cursor: pointer; position: relative; }
.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px;
}
.icon-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-weak); cursor: pointer; font-size: 16px;
  display: grid; place-items: center; transition: color .15s, border-color .15s, background .15s, transform .12s;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--surface-2); }
.icon-btn:active { transform: scale(.92); }
/* 顶栏文字链接（轻奢编辑风：刷新/账户） */
.topbar-link { background: transparent; border: none; color: var(--text-weak); font-size: 13px; cursor: pointer; padding: 8px 12px; letter-spacing: .5px; transition: color .15s; }
.topbar-link:hover { color: var(--text); }

.content { padding: 24px; flex: 1; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.page-head h1 { font-size: 20px; margin: 0; letter-spacing: 1.5px; }
.page-head .sub { color: var(--text-faint); font-size: 12px; margin-top: 4px; letter-spacing: .5px; }

/* ---------- Cards & stats ---------- */
.grid { display: grid; gap: 16px; }
.stat-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 6px;
  position: relative; overflow: hidden;
}
.stat .label { color: var(--text-weak); font-size: 13px; }
.stat .value { font-size: 26px; font-weight: 800; font-variant-numeric: tabular-nums; }
.stat .value small { font-size: 14px; font-weight: 600; color: var(--text-weak); }
.stat .bar { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent); }
.stat.warn .bar { background: var(--warn); }
.stat.ok .bar { background: var(--ok); }
.stat.danger .bar { background: var(--danger); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 9px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; font-weight: 600; font-size: 13px;
  transition: background .15s, border-color .15s, color .15s, box-shadow .15s, transform .12s, filter .15s;
}
.btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.btn:active { transform: scale(.97); }
/* 轻奢编辑风：主按钮为墨色（浅色主题深墨底 / 深色主题亮墨底深字） */
.btn.primary { background: var(--ink); border-color: var(--ink); color: var(--ink-contrast); }
.btn.primary:hover { filter: brightness(1.18); }
[data-theme="dark"] .btn.primary:hover { filter: brightness(1.08); }
.btn.primary:active { transform: scale(.97); }
.btn.danger { background: var(--danger-strong); border-color: var(--danger-strong); color: #fff; }
.btn.danger:hover { background: var(--danger-strong); filter: brightness(.94); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--surface-2); border-color: var(--border); }
.btn.warn { background: var(--warn-strong); border-color: var(--warn-strong); color: #fff; }
.btn.warn:hover { background: var(--warn-strong); filter: brightness(.94); }
/* 粉色按钮：与班级管理按钮同尺寸，粉底白字（学员管理「＋ 新增学员」） */
.btn.pink { background: #c2507c; border-color: #c2507c; color: #fff; }
.btn.pink:hover { background: #b0446f; border-color: #b0446f; }
.btn.sm { padding: 6px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Forms ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-weak); margin-bottom: 6px; font-weight: 600; }
.input, select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--input-border, var(--border)); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--input-text, var(--text)); outline: none; font-family: inherit; font-size: 13px;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: var(--focus-ring); }
.input::placeholder { color: var(--text-faint); }
/* 轻奢编辑风（浅色主题）：输入框改下划线式，聚焦底线变品牌粉；深色主题保持描边保证清晰 */
[data-theme="light"] .input, [data-theme="light"] select, [data-theme="light"] textarea {
  border: none; border-bottom: 1px solid var(--line-strong); border-radius: 0;
  background: transparent; padding: 9px 2px;
}
[data-theme="light"] .input:focus, [data-theme="light"] select:focus, [data-theme="light"] textarea:focus {
  border-bottom-color: var(--accent); box-shadow: none;
}
[data-theme="light"] .pwd-wrap .input { padding-right: 58px; padding-left: 2px; }
/* 密码框（带显示/隐藏切换） */
.pwd-wrap { position: relative; display: flex; align-items: center; }
.pwd-wrap .input { padding-right: 58px; }
.pwd-toggle { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: transparent; border: none; color: var(--text-weak); cursor: pointer; font-size: 12px; padding: 4px 8px; line-height: 1; border-radius: var(--radius-sm); }
.pwd-toggle:hover { color: var(--accent); background: var(--surface-2); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ---------- Table ---------- */
.table-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.tbl th { background: var(--paper); color: var(--text-weak); font-weight: 700; font-size: 12px; white-space: nowrap; cursor: default; }
.tbl th.no-sort { cursor: default; }
.tbl tbody tr:hover { background: var(--paper-2); }
.tbl tbody tr { transition: background .12s; }
.tbl tr:last-child td { border-bottom: none; }

/* 操作日志（z82）：表头冻结——容器内纵向滚动时「时间/用户/动作…」表头行固定 */
.audit-wrap { max-height: 65vh; overflow: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.audit-tbl { width: 100%; font-size: 13px; border-collapse: separate; border-spacing: 0; }
.audit-tbl th, .audit-tbl td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.audit-tbl th { position: sticky; top: 0; z-index: 2; background: var(--paper); color: var(--text-weak); font-weight: 700; font-size: 12px; box-shadow: 0 1px 0 var(--border); }
.audit-tbl tbody tr:hover { background: var(--paper-2); }
.audit-tbl tbody tr:last-child td { border-bottom: none; }

/* ---------- Badges（轻奢编辑风：细线描边 + 淡字） ---------- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: transparent; border: 1px solid; }
.badge.accent { border-color: var(--accent-line); color: var(--accent-strong); }
.badge.warn { border-color: var(--warn-line); color: var(--warn); }
.badge.danger { border-color: var(--danger-line); color: var(--danger); }
.badge.ok { border-color: var(--ok-line); color: var(--ok); }
.badge.weak { border-color: var(--border-strong); color: var(--text-weak); }

.low-flag { color: var(--danger); font-weight: 800; }

/* ---------- 用户与权限：按角色分组折叠 ---------- */
.group { border: 1px solid var(--input-border, var(--border)); border-radius: 10px; margin-bottom: 10px; overflow: hidden; background: var(--surface); }
.group-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; cursor: pointer; background: var(--paper); user-select: none; transition: background .15s; }
.group-head:hover { background: var(--paper-2); }
.caret { display: inline-block; width: 14px; text-align: center; color: var(--text-weak); font-size: 13px; }
.group-title { font-weight: 600; font-size: 15px; }
.count-badge { margin-left: auto; background: var(--surface); color: var(--text-weak); border-radius: 999px; padding: 2px 11px; font-size: 13px; font-weight: 600; }
.group-body { padding: 4px 10px 10px; }
.group-row { display: flex; align-items: center; gap: 10px; padding: 10px 6px; border-bottom: 1px dashed var(--border); }
.group-row:last-child { border-bottom: none; }
.group-row .grow { flex: 1; min-width: 0; }
.group-row .nowrap { display: inline-flex; align-items: center; gap: 8px; }
.uname { font-weight: 600; }
.role-tag { margin-left: 8px; font-size: 12px; font-weight: 600; padding: 1px 8px; border-radius: 999px; background: var(--danger-weak); color: var(--danger); }
.status-tag { margin-left: 8px; font-size: 12px; color: var(--text-weak); }
.danger-warn { background: var(--danger-weak); border: 1px solid var(--danger); color: var(--danger); border-radius: 8px; padding: 10px 12px; font-size: 13px; line-height: 1.6; margin-bottom: 12px; }
.form-err { color: var(--danger); min-height: 16px; margin-top: 6px; font-size: 13px; }

/* ---------- Modal & Toast ---------- */
#modal-root:empty { display: none; }
.modal-mask { position: fixed; top: 0; right: 0; bottom: 0; left: 0; background: rgba(20, 20, 40, .45); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; overflow: auto; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg); width: 560px; max-width: 100%;
  max-height: 90vh; overflow: auto; box-shadow: var(--shadow-lg); animation: pop .15s ease;
}
.modal.wide { width: 820px; max-width: 100%; }
@keyframes pop { from { transform: translateY(8px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

#toast-root { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--accent); box-shadow: var(--shadow); padding: 12px 16px; border-radius: var(--radius-sm); min-width: 220px; animation: slidein .2s; }
.toast.ok { border-left-color: var(--ok); }
.toast.warn { border-left-color: var(--warn); }
.toast.danger { border-left-color: var(--danger); }
@keyframes slidein { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- Misc ---------- */
.empty { text-align: center; color: var(--text-faint); padding: 50px 20px; }
.empty .big { font-size: 40px; margin-bottom: 8px; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .spacer { flex: 1; }
.muted { color: var(--text-weak); }
.tag-input { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; font-size: 12px; display: inline-flex; gap: 6px; align-items: center; }
.pill .x { cursor: pointer; color: var(--text-faint); }
.img-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.img-grid img { width: 100%; height: 150px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.img-grid .img-item { position: relative; }
.img-grid .img-item .del { position: absolute; top: 4px; right: 4px; background: rgba(0,0,0,.55); color: #fff; border: none; border-radius: 6px; cursor: pointer; width: 24px; height: 24px; }
.img-grid.big { grid-template-columns: 1fr; }
.img-grid.big .img-item img { height: auto; max-height: 68vh; object-fit: contain; }
.view-toggle { display: flex; gap: 6px; }
.stu-check-list { max-height: 220px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
.stu-check { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; padding: 3px 6px; border-radius: 6px; }
.stu-check:hover { background: var(--paper-2); }
.lightbox { position: fixed; top: 0; right: 0; bottom: 0; left: 0; background: rgba(0, 0, 0, .82); display: flex; align-items: center; justify-content: center; z-index: 9999; }
.lb-img { max-width: 92vw; max-height: 88vh; border-radius: 4px; }
.lb-btn { position: absolute; border: none; background: rgba(255, 255, 255, .16); color: #fff; width: 40px; height: 40px; border-radius: 50%; font-size: 22px; cursor: pointer; line-height: 1; }
.lb-close { top: 16px; right: 16px; font-size: 16px; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); }
.lb-btn:hover { background: rgba(255, 255, 255, .3); }
.rich-toolbar { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 6px; }
.re-btn { border: 1px solid var(--border); background: var(--paper); border-radius: 6px; font-size: 12px; padding: 3px 8px; cursor: pointer; min-width: 30px; }
.re-btn:hover { background: var(--paper-2); border-color: var(--accent-strong); color: var(--accent-strong); }
.re-color-wrap { position: relative; display: inline-block; }
.re-palette { position: absolute; top: 100%; left: 0; z-index: 20; display: flex; flex-wrap: wrap; gap: 4px; width: 136px; padding: 6px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow-sm); }
.re-color-cell { width: 20px; height: 20px; border-radius: 4px; border: 1px solid rgba(0, 0, 0, .15); cursor: pointer; padding: 0; line-height: 1; font-size: 12px; color: var(--text-weak); }
.re-color-cell:hover { transform: scale(1.18); }
.re-color-cell.clear { background: var(--paper-2); }
.rich-editor { border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 10px 12px; min-height: 96px; font-size: 14px; line-height: 1.7; background: var(--surface); outline: none; }
.rich-editor:focus { border-color: var(--accent-strong); box-shadow: 0 0 0 2px rgba(212, 83, 126, .12); }
.rich-body { white-space: pre-wrap; line-height: 1.8; word-break: break-word; }
.danger-box { background: var(--danger-weak, rgba(226, 75, 74, .08)); border: 1px solid var(--danger); color: var(--danger); border-radius: 8px; padding: 12px 14px; font-size: 13px; line-height: 1.7; }

/* schedule grid */
.sched-grid { display: grid; grid-template-columns: 70px repeat(7, 1fr); gap: 8px; }
.sched-grid .slot { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px; min-height: 56px; }
.sched-grid .head { background: var(--surface-2); font-weight: 700; text-align: center; display: grid; place-items: center; }
.sched-grid .time-col { display: grid; place-items: center; color: var(--text-weak); font-size: 12px; }
.sched-cell { background: var(--accent-weak); border: 1px solid var(--accent); border-radius: var(--radius-sm); padding: 6px 8px; font-size: 12px; cursor: pointer; }
.sched-cell .cn { font-weight: 700; }
.sched-cell .sb { color: var(--accent-strong); }

/* charts */
.chart-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-sm); }
.chart-box h4 { margin: 0 0 12px; font-size: 14px; }

/* login（轻奢编辑风：顶部条 + 左右分栏 + 底部页脚；注册卡仍居中） */
.login-wrap {
  min-height: 100vh; display: flex; flex-direction: column;
  background: var(--login-bg); position: relative; overflow: hidden;
}
.login-wrap > .login-card { margin: auto; }
.login-editorial { flex: 1; display: flex; flex-direction: column; color: var(--text); }
.le-top { display: flex; align-items: center; justify-content: space-between; padding: 16px 28px; border-bottom: 1px solid var(--line); }
.le-brand { font-size: 13px; font-weight: 700; letter-spacing: 2px; }
.le-nav { display: flex; gap: 18px; font-size: 12px; color: var(--text-weak); }
.le-main { flex: 1; display: grid; grid-template-columns: 1.2fr 1fr; min-height: 0; }
.le-left { padding: 44px 36px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; text-align: center; border-right: 1px solid var(--line); }
.le-logo { width: 128px; height: 128px; border-radius: 50%; background: var(--surface); border: 2px solid var(--accent-strong); display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(168, 71, 106, .14); overflow: hidden; }
.le-logo img { width: 100%; height: 100%; object-fit: cover; }
.le-slogan { font-size: 32px; font-weight: 800; line-height: 1.55; letter-spacing: 4px; color: var(--text); }
.le-slogan div:nth-child(2) { color: var(--accent-strong); font-size: 18px; font-weight: 600; letter-spacing: 3px; margin-top: 6px; }
.le-desc { color: var(--text-weak); font-size: 13px; line-height: 1.9; letter-spacing: 1.5px; margin-top: 4px; }
.le-right { padding: 48px 40px; display: flex; flex-direction: column; justify-content: center; }
/* 右栏表单整体限宽，避免输入框过长、与左栏留白不协调 */
.le-right .le-form-title,
.le-right .le-form-sub,
.le-right .le-input,
.le-right .le-submit,
.le-right .recent-accounts,
.le-right .link-btn { max-width: 340px; }
.le-form-title { font-size: 17px; font-weight: 700; letter-spacing: 1px; }
.le-form-sub { font-size: 13px; color: var(--text-weak); margin: 6px 0 26px; }
.le-input { border-bottom: 1px solid var(--line); margin-bottom: 18px; transition: border-color .15s ease; }
.le-input:focus-within { border-bottom-color: var(--accent-strong); }
.le-input .input, .le-input .pwd-wrap .input {
  border: none; background: transparent; box-shadow: none !important; border-radius: 0;
  padding: 10px 2px; font-size: 14px; width: 100%;
}
.le-input .pwd-wrap { display: flex; }
.le-input .pwd-toggle { right: 2px; }
.le-submit { background: var(--accent-strong); border-color: var(--accent-strong); color: #fff; padding: 12px; font-size: 14px; border-radius: 6px; }
.le-submit:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.le-right .recent-accounts { margin-top: 14px; }
.le-foot { display: flex; justify-content: space-between; align-items: center; padding: 14px 28px; border-top: 1px solid var(--line); font-size: 11px; color: var(--text-faint); letter-spacing: 1px; }
.le-foot-inner { }
@media (max-width: 720px) {
  .le-main { grid-template-columns: 1fr; }
  .le-left { display: none; }
  .le-top { padding: 14px 16px; }
  .le-right { padding: 36px 24px; }
  .le-foot { flex-direction: column; gap: 4px; padding: 12px 16px; }
}
.login-card {
  width: min(400px, 100%); background: var(--surface); border: 1px solid var(--border);
  border-radius: 22px; padding: 40px 36px 26px; box-shadow: var(--shadow-lg);
  text-align: center; animation: loginUp .38s ease;
}
@keyframes loginUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.login-card .logo {
  width: 84px; height: 84px; margin: 0 auto 18px; border-radius: 50%;
  background: #fff; box-shadow: 0 8px 24px rgba(201, 106, 139, .22); overflow: hidden;
  display: grid; place-items: center;
}
.login-card .logo img { width: 100%; height: 100%; object-fit: contain; }
.login-card h2 { margin: 0 0 8px; font-size: 23px; font-weight: 800; letter-spacing: 1px; }
.login-card .desc { color: var(--text-weak); margin-bottom: 26px; font-size: 14px; }
.login-card .field { margin-bottom: 16px; text-align: center; }
.login-card .field label { text-align: center; font-size: 12px; letter-spacing: 2px; color: var(--text-faint); margin-bottom: 8px; }
.login-card .input { text-align: center; padding: 12px 14px; font-size: 14px; border-radius: 12px; }
.login-card .pwd-wrap .input { padding-left: 46px; padding-right: 46px; }
.login-card .btn.primary.login-btn {
  width: 100%; padding: 12px 16px; font-size: 15px; border-radius: 12px; margin-top: 6px;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-deep));
  border: none; box-shadow: 0 6px 16px rgba(168, 71, 106, 0.35);
  transition: transform .12s, box-shadow .15s, filter .15s;
}
.login-card .btn.primary.login-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(168, 71, 106, 0.42); filter: brightness(1.05); }
.login-card .btn.primary.login-btn:active { transform: translateY(0); box-shadow: 0 4px 10px rgba(168, 71, 106, 0.3); }
.login-card .btn.primary.login-btn:disabled { opacity: .75; cursor: wait; }
.login-card .input { text-align: center; padding: 12px 14px; font-size: 14px; border-radius: 12px; transition: border-color .15s, box-shadow .15s; }
.login-card .input:focus { border-color: var(--accent); box-shadow: var(--focus-ring); }
.login-card .link-btn { margin-top: 14px; font-size: 13px; }
.login-card .login-foot { margin-top: 22px; font-size: 11px; color: var(--text-faint); }

/* share page */
.share-page { max-width: 760px; margin: 0 auto; padding: 24px; }
.share-page .hero { background: linear-gradient(135deg, var(--accent), var(--accent-strong)); color: #fff; border-radius: var(--radius-lg); padding: 26px; }
.share-page .hero .type { background: rgba(255,255,255,.22); padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; display: inline-block; }

.section-title { font-size: 14px; font-weight: 700; margin: 16px 0 10px; letter-spacing: 1px; }
.checklist { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-sm); }
.checklist .item { padding: 10px 0; border-bottom: 1px dashed var(--border); }
.checklist .item:last-child { border-bottom: none; }
.checklist .item .t { font-weight: 700; }
.checklist .item .meta { color: var(--text-weak); font-size: 12px; margin-top: 2px; white-space: pre-wrap; }

.flex { display: flex; gap: 10px; align-items: center; }
.wrap { flex-wrap: wrap; }
.mt { margin-top: 14px; }
.mb { margin-bottom: 14px; }
.nowrap { white-space: nowrap; }
.text-center { text-align: center; }
@media (max-width: 720px) {
  .sidebar { position: fixed; transform: translateX(-100%); transition: .2s; }
  .sidebar.open { transform: none; }
  .row2 { grid-template-columns: 1fr; }
}

/* 家长端 / 消息中心 */
.nav-badge { display: inline-block; min-width: 18px; height: 18px; line-height: 18px; padding: 0 5px; margin-left: 6px; text-align: center; border-radius: 999px; background: var(--danger); color: #fff; font-size: 11px; font-weight: 700; vertical-align: middle; }
.link-btn { background: none; border: none; color: var(--accent-strong); cursor: pointer; font-size: 13px; }
.link-btn:hover { text-decoration: underline; }
.msg-list { display: flex; flex-direction: column; gap: 8px; }
.msg-item { border: 1px solid var(--border); border-radius: var(--radius, 10px); padding: 12px 14px; cursor: pointer; background: var(--surface); }
.msg-item:hover { border-color: var(--accent); }
.msg-item.unread { background: var(--accent-weak); border-color: var(--accent); }
.msg-top { display: flex; align-items: center; gap: 8px; }
.msg-title { font-weight: 600; flex: 1; }
.msg-sub { font-size: 12px; margin-top: 4px; }
.msg-time { margin-left: auto; font-size: 12px; white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--danger); flex: 0 0 8px; }

/* ---------- 建议落地：新手引导 / 批量操作 / 可访问性 / 窄屏 ---------- */
/* 新手引导三步卡片 */
.guide-steps { display: grid; gap: 10px; }
.guide-step { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.guide-num { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-contrast, #fff); display: grid; place-items: center; font-weight: 800; flex: 0 0 30px; }
.guide-title { font-weight: 600; }

/* 批量选择操作栏 */
.batch-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 10px 14px; border: 1px solid var(--input-border, var(--border)); border-radius: 10px; background: var(--accent-weak); margin-bottom: 10px; }
.row-check { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; flex: 0 0 16px; }

/* 可访问性：键盘焦点可见环 */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button { -webkit-tap-highlight-color: transparent; }

/* 窄屏适配：表格横向滚动、操作换行、网格单列 */
@media (max-width: 720px) {
  .table-wrap { overflow-x: auto; }
  .group-row { flex-wrap: wrap; }
  .group-row .nowrap { flex-wrap: wrap; }
  .grid { grid-template-columns: 1fr !important; }
  .content { padding: 14px; }
  .toolbar { flex-wrap: wrap; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}

/* 打印样式：隐藏侧栏/顶栏/按钮，内容区全宽无阴影，表格去背景，保证打印整洁 */
@media print {
  .sidebar, .topbar, .toolbar, .btn, .icon-btn, .link-btn, .nav-badge, .no-print { display: none !important; }
  .app-shell, .main, .content { display: block !important; padding: 0 !important; }
  body { background: #fff !important; color: #000 !important; }
  .card, .stat, .table-wrap { box-shadow: none !important; border-color: #ccc !important; background: #fff !important; }
  .table-wrap { overflow: visible !important; }
  .card, .stat { page-break-inside: avoid; }
}

/* 全局搜索下拉面板（已随顶栏搜索框移除，样式保留为空壳避免残留引用报错） */

/* 密码强度条 */
.pwd-strength { margin-top: 6px; }
.pwd-strength-bar { height: 5px; border-radius: 3px; background: var(--surface-3); overflow: hidden; }
.pwd-strength-bar .fill { height: 100%; width: 0; border-radius: 3px; transition: width .2s, background .2s; }
.pwd-strength-label { display: inline-block; margin-top: 3px; font-size: 12px; }

/* 家长端课时预警卡片 */
.card-warn { border-color: var(--danger); }

/* 头像：顶栏/账户弹窗/切换账号列表 */
.avatar-img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; display: block; }
.avatar.sm { width: 28px; height: 28px; font-size: 12px; flex: 0 0 28px; }
.account-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; cursor: pointer; border: 1px solid var(--border); margin-bottom: 8px; background: var(--surface); }
.account-item:hover { border-color: var(--accent); background: var(--accent-weak); }
.account-item .grow { flex: 1; font-weight: 600; }

/* 登录页：最近账号快速选择 */
.recent-accounts { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 2px 0 12px; }
.recent-accounts .pill { cursor: pointer; font-size: 12px; padding: 3px 10px; }

/* 深色主题：亮色底按钮/未读徽章改用深色文字，保证对比度 ≥ 4.5:1 */
[data-theme="dark"] .btn.danger,
[data-theme="dark"] .btn.warn,
[data-theme="dark"] .nav-badge { color: var(--accent-contrast); }

/* ---------- 学员管理 · 轻奢细线信息行 ---------- */
.member-tabs { display: flex; gap: 18px; align-items: center; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.member-tabs .tab { padding: 8px 2px; font-size: 13px; color: var(--text-weak); cursor: pointer; position: relative; letter-spacing: .5px; background: transparent; border: none; }
.member-tabs .tab:hover { color: var(--text); }
.member-tabs .tab.active { color: var(--text); font-weight: 700; }
.member-tabs .tab.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--ink); }
.member-tabs .tab .tab-count { color: var(--danger); margin-left: 4px; }

.member-toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
/* 学员管理：标题区+工具栏(搜索/下拉)+标签行 整体吸顶（top:60px=顶栏高度），保留表头之上的数据 */
.member-sticky { position: sticky; top: 60px; z-index: 5; background: var(--surface); margin: 0 -24px; padding: 0 24px; }
.member-sticky .page-head { margin-bottom: 12px; }

.member-list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.member-row { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-bottom: 1px solid var(--border); transition: background .12s; }
.member-row:last-child { border-bottom: none; }
.member-row:hover { background: var(--paper-2); }
.member-avatar { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 500; font-size: 14px; flex: 0 0 40px; }
.member-avatar.accent { background: var(--accent-weak); color: var(--accent-strong); }
.member-avatar.info { background: #eaf3fa; color: var(--info); }
.member-avatar.ok { background: var(--ok-weak); color: var(--ok); }
.member-avatar.danger { background: var(--danger-weak); color: var(--danger); }
[data-theme="dark"] .member-avatar.info { background: rgba(111, 155, 240, .15); color: var(--info); }
.member-avatar.pink { background: #fde6f0; color: #c2507c; }
[data-theme="dark"] .member-avatar.pink { background: rgba(194, 80, 124, .18); color: #f2a9ca; }

.member-info { flex: 1; min-width: 0; }
.member-line { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.member-name { font-size: 14px; font-weight: 600; min-width: 4em; display: inline-block; color: var(--text); }
.member-progress-row { display: flex; align-items: center; gap: 12px; margin-top: 8px; }
.member-progress-bar { width: 160px; max-width: 100%; height: 4px; background: var(--paper); border-radius: 2px; overflow: hidden; flex: 0 1 160px; }
.member-progress-fill { height: 100%; border-radius: 2px; transition: width .25s ease; }
.member-progress-fill.danger { background: var(--danger); }
.member-progress-fill.accent { background: var(--accent); }
.member-progress-fill.ok { background: var(--ok); }
.member-progress-sub { font-size: 12px; color: var(--text-faint); font-variant-numeric: tabular-nums; }
.member-no { font-size: 12px; color: var(--text-faint); font-variant-numeric: tabular-nums; letter-spacing: .5px; margin-right: 2px; }
/* 班级显示字段统一等宽（预留 4 个文字长度，超长截断省略号，保证页面和谐） */
.badge.member-cls { width: 4.6em; text-align: center; display: inline-block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; vertical-align: middle; }
/* 退学学员：灰化头像与文字 */
.member-avatar.muted { background: var(--paper-2); color: var(--text-faint); }
.badge.muted { border-color: var(--border-strong); color: var(--text-faint); }
.member-actions { display: flex; gap: 8px; align-items: center; flex: 0 0 auto; }
.member-actions .btn { padding: 7px 16px; letter-spacing: 1px; }
.member-actions .btn-renew { border: 1px solid var(--border-strong); background: transparent; color: var(--text); }
.member-actions .btn-renew:hover { background: var(--paper); border-color: var(--ink); }
.member-actions .btn-detail { background: transparent; border: 1px solid var(--border); color: var(--text-weak); }
.member-actions .btn-detail:hover { background: var(--paper); color: var(--text); }

/* ---------- 工作台高级版（轻奢纸感层次面 + 迷你趋势线） ---------- */
.dash-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.dash-card { background: var(--paper); border-radius: var(--radius); padding: 16px 18px; transition: transform .12s ease, background .15s ease; }
.dash-card:hover { transform: translateY(-1px); background: var(--paper-2); }
/* 可点击跳转的数据概览卡 */
.dash-card.clickable { cursor: pointer; }
.dash-card.clickable:hover { box-shadow: var(--shadow-sm); }
.dash-label { font-size: 13px; color: var(--text-weak); }
.dash-value { font-size: 26px; font-weight: 800; margin: 6px 0 2px; font-variant-numeric: tabular-nums; }
.dash-card.danger .dash-value { color: var(--danger); }
.dash-card.ok .dash-value { color: var(--ok); }
.dash-sub { font-size: 12px; color: var(--text-faint); }
.dash-spark { margin-top: 8px; }
.dash-cols { grid-template-columns: 1.4fr 1fr; }
.quick-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.quick-card { background: var(--paper); border-radius: var(--radius-sm); padding: 12px 14px; cursor: pointer; transition: transform .12s ease, box-shadow .15s ease, background .15s ease; }
.quick-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); background: var(--paper-2); }
.qc-title { font-weight: 700; font-size: 14px; }
.qc-sub { font-size: 12px; color: var(--text-weak); margin-top: 3px; }
.todo-list { display: flex; flex-direction: column; gap: 12px; }
.todo-item { display: flex; gap: 10px; align-items: flex-start; }
.todo-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex: 0 0 8px; }
.todo-dot.danger { background: var(--danger); }
.todo-dot.warn { background: var(--warn); }
.todo-dot.ok { background: var(--ok); }
.todo-dot.info { background: var(--info); }
.todo-dot.muted { background: var(--text-faint); }
.todo-text { font-size: 13px; font-weight: 600; }
.todo-sub { font-size: 12px; color: var(--text-weak); margin-top: 2px; }
.todo-item.clickable { cursor: pointer; padding: 6px 8px; margin: -6px -8px; border-radius: 8px; transition: background .15s ease; }
.todo-item.clickable:hover { background: var(--paper-2); }
.todo-arrow { color: var(--text-faint); font-size: 16px; line-height: 1; margin-top: 2px; }
.act-card { padding: 0; position: relative; }
.act-cover { width: 100%; height: 150px; overflow: hidden; background: var(--paper-2); }
.act-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.act-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 6px; opacity: 0; transition: opacity .15s ease; }
.act-card:hover .act-actions, .act-card:focus-within .act-actions { opacity: 1; }
.act-btn { border: none; background: rgba(0, 0, 0, .55); color: #fff; font-size: 12px; padding: 4px 9px; border-radius: 6px; cursor: pointer; }
.act-btn:hover { background: rgba(0, 0, 0, .78); }
.act-btn.danger:hover { background: var(--danger); }
.img-pick { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.img-pick-item { position: relative; width: 84px; height: 84px; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); background: var(--paper); display: flex; align-items: center; justify-content: center; }
.img-pick-item img { width: 100%; height: 100%; object-fit: cover; }
.img-pick-item.pending { padding: 6px; box-sizing: border-box; }
.img-pick-item .del { position: absolute; top: 2px; right: 2px; width: 18px; height: 18px; border-radius: 50%; background: rgba(0,0,0,.55); color: #fff; font-size: 11px; line-height: 1; border: none; cursor: pointer; }
@media (max-width: 900px) { .dash-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .dash-cols { grid-template-columns: 1fr; } }

/* ---------- 家长端清新治愈风 ---------- */
.child-card { background: var(--surface); border: 1px solid #f2e3ea; border-radius: 20px; padding: 18px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 14px; }
[data-theme="dark"] .child-card { border-color: var(--border); }
.child-card.child-warn { border-color: var(--danger); }
.child-head { display: flex; align-items: center; gap: 12px; }
.child-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--accent-weak); color: var(--accent-strong); display: grid; place-items: center; font-weight: 800; font-size: 18px; flex: 0 0 48px; }
.child-name { font-weight: 700; font-size: 15px; }
.child-class { font-size: 12px; color: var(--text-weak); margin-top: 3px; }
.child-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.child-stat { background: var(--paper); border-radius: 12px; padding: 12px 8px; text-align: center; }
.cs-label { font-size: 12px; color: var(--text-weak); }
.cs-value { font-size: 18px; font-weight: 800; margin-top: 6px; font-variant-numeric: tabular-nums; }
.cp-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-weak); margin-bottom: 6px; }
.cp-bar { height: 8px; border-radius: 4px; background: var(--surface-3); overflow: hidden; }
.cp-fill { height: 100%; border-radius: 4px; background: var(--accent); transition: width .3s ease; }
.cp-fill.warn { background: var(--warn); }
.child-events-title { font-size: 14px; font-weight: 700; margin: 2px 0 4px; }
.child-events { display: flex; flex-direction: column; gap: 10px; }
.ce-item { display: flex; gap: 10px; align-items: flex-start; }
.ce-dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 5px; flex: 0 0 10px; }
.ce-dot.ok { background: var(--ok); }
.ce-dot.warn { background: var(--warn); }
.ce-dot.info { background: var(--info); }
.ce-dot.danger { background: var(--danger); }
.ce-dot.muted { background: var(--text-faint); }
.ce-text { font-size: 13px; }
.ce-sub { font-size: 12px; color: var(--text-weak); margin-top: 2px; }

/* ---------- 课程收费标准（生成"雅馨舞蹈收费标准"汇总，高级粉色风格） ---------- */
.fee-doc {
  border: 2px solid #efc3d4;
  border-radius: 14px;
  background: #fffdfe;
  color: #3a2b33;
  padding: 26px 28px 22px;
  box-shadow: 0 6px 24px rgba(201, 106, 139, .12);
}
.fee-head { text-align: center; margin-bottom: 6px; padding-bottom: 14px; position: relative; }
.fee-head::after { content: ''; display: block; width: 150px; height: 3px; margin: 12px auto 0; background: linear-gradient(to right, transparent, #e58bb0, transparent); border-radius: 3px; }
.fee-title { font-size: 26px; font-weight: 800; letter-spacing: 6px; color: #c2507c; }
.fee-sub { color: #c98aa4; font-size: 12px; margin-top: 8px; letter-spacing: 10px; }
.fee-doc .section-title { color: #b04070; text-align: center; margin-top: 18px; }
.fee-tbl { margin-top: 10px; border-collapse: collapse; }
.fee-tbl th, .fee-tbl td { border: 1px solid #efc9d9; padding: 10px 12px; }
.fee-tbl thead th { background: #fdeef4; color: #b04070; font-weight: 700; text-align: center; letter-spacing: 1px; }
.fee-tbl tbody tr:hover { background: transparent; }
.fee-tbl tr:last-child td { border-bottom: 1px solid #efc9d9; }
.fee-notes { margin: 10px 0 0 4px; line-height: 1.95; color: #4a3a42; }
.fee-note { display: flex; align-items: baseline; margin-bottom: 3px; }
.fee-num { flex: 0 0 auto; min-width: 24px; font-weight: 700; color: #d1709c; }
.fee-note-text { flex: 1 1 auto; }
/* 班级管理弹窗表格：冻结表头行 */
/* 班级管理：弹窗内滚动时「工具栏行 + 表头」整体冻结（工具栏在上，表头紧随其下，含表头之上的数据） */
.class-tbl-toolbar { position: sticky; top: 0; z-index: 2; background: var(--surface); padding-bottom: 14px; margin-bottom: 0; }
.class-tbl thead th { position: sticky; top: 52px; z-index: 1; }
/* 打印：仅输出弹窗中的收费标准正文（隐藏编辑区/按钮/其他页面内容） */
@media print {
  body * { visibility: hidden !important; }
  #modal-root, #modal-root * { visibility: visible !important; }
  #modal-root { position: absolute !important; left: 0; top: 0; width: 100%; padding: 20px; }
  #modal-root .modal { max-height: none !important; overflow: visible !important; box-shadow: none !important; border: 1px solid #ccc; border-radius: 0; }
  #modal-root .modal-head, #modal-root .modal-foot, #modal-root .fee-edit-area { display: none !important; }
}

/* ---------- 考勤汇总在线浏览表（att-sum-tbl） ---------- */
.att-sum-tbl { border-collapse: separate; border-spacing: 0; white-space: nowrap; }
.att-sum-tbl thead th { position: sticky; top: 0; z-index: 2; background: var(--surface); border-bottom: 2px solid var(--border-strong); text-align: center; }
.att-sum-tbl td:first-child, .att-sum-tbl thead th:first-child { position: sticky; left: 0; z-index: 3; background: var(--surface); font-weight: 600; }
.att-sum-tbl tbody td { border-bottom: 1px solid var(--border); padding: 6px 10px; }
.att-sum-tbl tbody tr:hover td { background: var(--paper-2); }