/* ============================================================
   学生管理系统 · 样式表
   设计：浅色主题 / 移动端优先适配 / 触控友好
   ============================================================ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-50: #f0f7ff;
  --success: #10b981;
  --success-light: #ecfdf5;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --info: #6366f1;
  --purple: #8b5cf6;

  --text: #111827;
  --text-2: #4b5563;
  --text-3: #9ca3af;
  --border: #e5e7eb;
  --border-2: #f3f4f6;
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #f9fafb;

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, .08);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, .14);

  --sidebar-w: 236px;
  --topbar-h: 60px;

  --sp: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

h1, h2, h3, h4, p, figure { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--primary); text-decoration: none; }
svg { flex: none; }
.hidden { display: none !important; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }
::-webkit-scrollbar-track { background: transparent; }

/* ================= 登录页 ================= */

.login-page {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, #eef4ff 0%, #f7f9fc 45%, #eefbf5 100%);
  overflow: auto;
}
.login-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(700px 400px at 12% 8%, rgba(37, 99, 235, .10), transparent 60%),
    radial-gradient(600px 400px at 88% 92%, rgba(16, 185, 129, .10), transparent 60%);
  pointer-events: none;
}
.login-card {
  position: relative;
  width: 100%; max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px 28px 24px;
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.login-logo {
  width: 46px; height: 46px; border-radius: 13px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff; display: grid; place-items: center;
  box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
}
.login-brand h1 { font-size: 19px; font-weight: 700; letter-spacing: .3px; }
.login-brand p { font-size: 11px; color: var(--text-3); letter-spacing: 1.2px; text-transform: uppercase; }

.field { margin-bottom: 16px; }
.field > label { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
.input-icon { position: relative; display: flex; align-items: center; }
.input-icon > svg:first-child { position: absolute; left: 12px; color: var(--text-3); pointer-events: none; }
.input-icon input {
  width: 100%; height: 44px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  outline: none; transition: .15s;
}
.input-icon input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.eye-btn {
  position: absolute; right: 6px;
  width: 32px; height: 32px; border: 0; background: transparent;
  color: var(--text-3); cursor: pointer; border-radius: 6px; display: grid; place-items: center;
}
.eye-btn:hover { color: var(--text-2); background: var(--surface-2); }

.login-err { min-height: 20px; color: var(--danger); font-size: 13px; margin-bottom: 6px; }
.btn-block { width: 100%; }
.btn-lg { height: 44px; font-size: 15px; }

.login-accounts { margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--border); }
.login-accounts-title { font-size: 12px; color: var(--text-3); margin-bottom: 10px; text-align: center; }
.account-chips { display: grid; gap: 8px; }
.account-chips button {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px; border: 1px solid var(--border); background: var(--surface-2);
  border-radius: var(--radius-sm); cursor: pointer; text-align: left; transition: .15s;
}
.account-chips button:hover { border-color: var(--primary); background: var(--primary-light); }
.account-chips b { font-size: 12px; color: var(--text); min-width: 44px; }
.account-chips span { font-size: 12px; color: var(--text-3); font-family: ui-monospace, Consolas, monospace; }

/* ================= 按钮 ================= */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 36px; padding: 0 14px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text-2);
  font-size: 13.5px; font-weight: 500; cursor: pointer;
  white-space: nowrap; transition: .15s; user-select: none;
}
.btn:hover { background: var(--surface-2); border-color: #d1d5db; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #059669; border-color: #059669; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; border-color: #dc2626; }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-outline-danger { color: var(--danger); border-color: #fecaca; background: var(--danger-light); }
.btn-outline-danger:hover { background: #fee2e2; border-color: #fca5a5; }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12.5px; border-radius: 7px; }

.icon-btn {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid transparent; background: transparent; color: var(--text-2);
  border-radius: var(--radius-sm); cursor: pointer; transition: .15s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.danger:hover { background: var(--danger-light); color: var(--danger); }
.icon-btn.primary:hover { background: var(--primary-light); color: var(--primary); }

/* ================= 布局 ================= */

.app { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w); flex: none;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; bottom: 0; left: 0; z-index: 60;
}
.sidebar-head { height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between; padding: 0 14px 0 16px; border-bottom: 1px solid var(--border-2); }
.brand { display: flex; align-items: center; gap: 10px; overflow: hidden; }
.brand-logo {
  width: 32px; height: 32px; flex: none; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff; display: grid; place-items: center;
}
.brand-text { font-weight: 700; font-size: 15px; white-space: nowrap; }
.sidebar-close { display: none; }

.nav { flex: 1; overflow-y: auto; padding: 12px 10px; }
.nav-group-title { font-size: 11px; color: var(--text-3); font-weight: 600; letter-spacing: .6px; padding: 14px 10px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  height: 40px; padding: 0 11px; margin-bottom: 2px;
  border-radius: var(--radius-sm); cursor: pointer;
  color: var(--text-2); font-size: 14px; font-weight: 500; transition: .15s;
  border: 0; background: transparent; width: 100%; text-align: left;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.nav-item .badge-dot { margin-left: auto; }

.sidebar-foot { padding: 10px; border-top: 1px solid var(--border-2); }
.user-chip {
  display: flex; align-items: center; gap: 10px;
  padding: 8px; border-radius: var(--radius-sm); cursor: pointer; transition: .15s;
}
.user-chip:hover { background: var(--surface-2); }
.user-chip .meta { min-width: 0; flex: 1; }
.user-chip .name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-chip .role { font-size: 11.5px; color: var(--text-3); }

.mask {
  position: fixed; inset: 0; background: rgba(17, 24, 39, .45);
  z-index: 55; opacity: 0; pointer-events: none; transition: .2s;
}
.mask.show { opacity: 1; pointer-events: auto; }

.main { flex: 1; min-width: 0; margin-left: var(--sidebar-w); display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 40;
  height: var(--topbar-h); flex: none;
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.menu-btn { display: none; }
.topbar-title { min-width: 0; flex: 1; }
.topbar-title h2 { font-size: 17px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.page-sub { font-size: 12px; color: var(--text-3); }
.topbar-actions { display: flex; align-items: center; gap: 8px; flex: none; }

.view { flex: 1; padding: 20px; min-width: 0; }

.tabbar { display: none; }

/* ================= 通用组件 ================= */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; border-bottom: 1px solid var(--border-2);
}
.card-head h3 { font-size: 14.5px; font-weight: 700; }
.card-head .sub { font-size: 12px; color: var(--text-3); font-weight: 400; }
.card-head .right { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.card-body { padding: 16px; }

.section-title { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 14px; font-weight: 700; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
  display: flex; align-items: flex-start; gap: 12px;
}
.stat-card .ico {
  width: 42px; height: 42px; flex: none; border-radius: 11px;
  display: grid; place-items: center; color: #fff;
}
.stat-card .num { font-size: 24px; font-weight: 700; line-height: 1.2; letter-spacing: -.3px; }
.stat-card .lbl { font-size: 12.5px; color: var(--text-3); margin-top: 2px; }
.stat-card .extra { font-size: 11.5px; color: var(--text-3); margin-top: 6px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stack { display: flex; flex-direction: column; gap: 16px; }

/* 表格 */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td {
  padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border-2);
  font-size: 13.5px; vertical-align: middle;
}
.tbl th {
  background: var(--surface-2); font-weight: 600; color: var(--text-2);
  font-size: 12.5px; white-space: nowrap; position: sticky; top: 0; z-index: 1;
}
.tbl th.sortable { cursor: pointer; user-select: none; }
.tbl th.sortable:hover { color: var(--primary); }
.tbl th .sort-ind { opacity: .35; margin-left: 3px; font-size: 10px; }
.tbl th.sorted .sort-ind { opacity: 1; color: var(--primary); }
.tbl tbody tr:hover { background: var(--primary-50); }
.tbl tbody tr.selected { background: #e8f1ff; }
.tbl td.nowrap, .tbl th.nowrap { white-space: nowrap; }
.tbl .row-actions { display: flex; gap: 4px; justify-content: flex-end; }

td.col-check, th.col-check { width: 40px; padding-right: 0; }

/* 复选 */
input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 17px; height: 17px; flex: none;
  border: 1.5px solid #cbd5e1; border-radius: 4px; background: #fff;
  cursor: pointer; position: relative; transition: .12s; margin: 0;
}
input[type="checkbox"]:checked { background: var(--primary); border-color: var(--primary); }
input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 5px; top: 1.5px;
  width: 4px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
input[type="checkbox"]:indeterminate { background: var(--primary); border-color: var(--primary); }
input[type="checkbox"]:indeterminate::after {
  content: ""; position: absolute; left: 3px; top: 6.5px; width: 9px; height: 0; border-top: 2px solid #fff;
}

/* 徽标 / 标签 */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 20px;
  font-size: 11.5px; font-weight: 600; line-height: 1.7; white-space: nowrap;
}
.badge.blue { background: #eff6ff; color: #1d4ed8; }
.badge.green { background: #ecfdf5; color: #047857; }
.badge.amber { background: #fffbeb; color: #b45309; }
.badge.red { background: #fef2f2; color: #b91c1c; }
.badge.gray { background: #f3f4f6; color: #4b5563; }
.badge.purple { background: #f5f3ff; color: #6d28d9; }
.badge-dot {
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--primary); color: #fff; font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}

.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 1px 7px; border-radius: 5px; font-size: 11.5px;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border);
}
.tag .dot { width: 6px; height: 6px; border-radius: 50%; }

/* 头像 */
.avatar {
  width: 36px; height: 36px; flex: none; border-radius: 50%;
  background: linear-gradient(135deg, #dbeafe, #bfdbfe); color: #1e40af;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  overflow: hidden; border: 1px solid rgba(37, 99, 235, .12);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar.sm { width: 28px; height: 28px; font-size: 11px; }
.avatar.lg { width: 64px; height: 64px; font-size: 22px; }
.avatar.xl { width: 96px; height: 96px; font-size: 30px; }
.avatar.male { background: linear-gradient(135deg, #dbeafe, #bfdbfe); color: #1e40af; }
.avatar.female { background: linear-gradient(135deg, #fce7f3, #fbcfe8); color: #9d174d; }

/* 可点击放大的头像（有照片时） */
.ph-wrap { display: inline-flex; border-radius: 50%; flex: none; }
.ph-wrap.has-photo { cursor: zoom-in; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.ph-wrap.has-photo:hover { transform: scale(1.1); box-shadow: 0 0 0 2px var(--primary); }
.ph-wrap.has-photo:active { transform: scale(1.02); }
.ph-wrap.square { border-radius: 16px; }
.ph-wrap.square.has-photo:hover { transform: scale(1.03); }

.cell-user { display: flex; align-items: center; gap: 9px; min-width: 0; }
.cell-user .nm { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cell-user .sub { font-size: 11.5px; color: var(--text-3); }

/* 空状态 */
.empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; padding: 52px 20px; color: var(--text-3); text-align: center;
}
.empty svg { opacity: .35; }
.empty .t { font-size: 14px; font-weight: 600; color: var(--text-2); }
.empty .d { font-size: 12.5px; }

/* 加载骨架 */
.skeleton { background: linear-gradient(90deg, #f1f5f9 25%, #e8eef6 37%, #f1f5f9 63%); background-size: 400% 100%; animation: sk 1.2s ease infinite; border-radius: 6px; }
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

.loading-bar { position: fixed; left: 0; right: 0; top: 0; height: 2px; background: var(--primary); z-index: 999; animation: lb .8s ease-in-out infinite; }
@keyframes lb { 0% { transform: scaleX(0); transform-origin: left; } 50% { transform: scaleX(1); transform-origin: left; } 51% { transform: scaleX(1); transform-origin: right; } 100% { transform: scaleX(0); transform-origin: right; } }

/* 分页 */
.pager { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 12px 16px; border-top: 1px solid var(--border-2); }
.pager .info { font-size: 12.5px; color: var(--text-3); }
.pager .pages { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.pg-btn {
  min-width: 30px; height: 30px; padding: 0 8px;
  border: 1px solid var(--border); background: #fff; border-radius: 7px;
  cursor: pointer; font-size: 12.5px; display: grid; place-items: center; color: var(--text-2);
}
.pg-btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.pg-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.pg-btn:disabled { opacity: .45; cursor: not-allowed; }

/* 工具栏 */
.toolbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 16px; border-bottom: 1px solid var(--border-2);
}
.toolbar .grow { flex: 1; min-width: 120px; }
.toolbar .spacer { margin-left: auto; }

.search-box { position: relative; flex: 1; max-width: 340px; min-width: 160px; }
.search-box svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--text-3); }
.search-box input {
  width: 100%; height: 36px; padding: 0 32px 0 34px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); outline: none; transition: .15s;
}
.search-box input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.search-box .clear {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; border: 0; background: transparent; color: var(--text-3);
  cursor: pointer; border-radius: 6px; display: none; place-items: center;
}
.search-box input:not(:placeholder-shown) ~ .clear { display: grid; }

select.sel, input.inp {
  height: 36px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: #fff; outline: none; transition: .15s; font-size: 13.5px;
}
select.sel { padding-right: 26px; cursor: pointer; }
select.sel:focus, input.inp:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
input.inp { width: 100%; }

/* 筛选条 */
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.filter-item { display: flex; flex-direction: column; gap: 4px; }
.filter-item label { font-size: 11.5px; color: var(--text-3); font-weight: 600; }
.filter-item .sel, .filter-item .inp { min-width: 128px; }

.active-filters { display: flex; gap: 6px; flex-wrap: wrap; padding: 10px 16px 0; }
.chip-filter {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 6px 3px 10px; border-radius: 20px; font-size: 12px;
  background: var(--primary-light); color: var(--primary); border: 1px solid #dbeafe;
}
.chip-filter button { border: 0; background: transparent; color: inherit; cursor: pointer; display: grid; place-items: center; padding: 0; opacity: .7; }
.chip-filter button:hover { opacity: 1; }

/* 批量操作条 */
.bulk-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 16px; background: var(--primary-light);
  border-bottom: 1px solid #dbeafe; font-size: 13px;
}
.bulk-bar b { color: var(--primary); }
.bulk-bar .spacer { margin-left: auto; }

/* 学生卡片（移动视图） */
.stu-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 12px; padding: 14px; }
.stu-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: #fff; padding: 12px; display: flex; gap: 12px; cursor: pointer; transition: .15s;
}
.stu-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.stu-card.selected { border-color: var(--primary); background: var(--primary-50); }
.stu-card .body { flex: 1; min-width: 0; }
.stu-card .nm-row { display: flex; align-items: center; gap: 6px; }
.stu-card .nm { font-weight: 700; font-size: 14.5px; }
.stu-card .no { font-size: 12px; color: var(--text-3); font-family: ui-monospace, Consolas, monospace; }
.stu-card .lines { margin-top: 6px; display: grid; gap: 3px; font-size: 12.5px; color: var(--text-2); }
.stu-card .lines div { display: flex; gap: 5px; }
.stu-card .lines span { color: var(--text-3); min-width: 32px; }
.stu-card .tags { margin-top: 8px; display: flex; gap: 5px; flex-wrap: wrap; }
.stu-card .card-actions { display: flex; flex-direction: column; gap: 4px; }

/* 组织架构树 */
.org-tree { padding: 8px 0; }
.org-node { border-bottom: 1px solid var(--border-2); }
.org-node:last-child { border-bottom: 0; }
.org-row { display: flex; align-items: center; gap: 10px; padding: 11px 16px; cursor: pointer; transition: .12s; }
.org-row:hover { background: var(--surface-2); }
.org-row .caret { transition: transform .2s; color: var(--text-3); display: grid; place-items: center; }
.org-row .caret.open { transform: rotate(90deg); }
.org-row .title { font-weight: 600; display: flex; align-items: center; gap: 8px; }
.org-row .code { font-size: 11.5px; color: var(--text-3); font-family: ui-monospace, Consolas, monospace; }
.org-row .meta { font-size: 12px; color: var(--text-3); margin-left: 6px; }
.org-row .right { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.org-children { background: var(--surface-2); }
.org-children .org-row { padding-left: 38px; }
.org-children .org-children .org-row { padding-left: 62px; }
.org-empty { padding: 10px 16px 14px 62px; font-size: 12.5px; color: var(--text-3); }

/* 分组卡片 */
.group-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 14px; }
.group-card {
  border: 1px solid var(--border); border-radius: var(--radius); background: #fff;
  padding: 16px; position: relative; overflow: hidden; transition: .15s;
}
.group-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.group-card .bar { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; }
.group-card .hd { display: flex; align-items: flex-start; gap: 10px; padding-left: 8px; }
.group-card .ico { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: #fff; flex: none; }
.group-card h4 { font-size: 15px; font-weight: 700; }
.group-card .desc { font-size: 12.5px; color: var(--text-3); margin-top: 2px; min-height: 19px; }
.group-card .count { font-size: 26px; font-weight: 700; letter-spacing: -.5px; }
.group-card .count-lbl { font-size: 11.5px; color: var(--text-3); }
.group-card .ft { display: flex; gap: 6px; margin-top: 14px; padding-left: 8px; }
.group-card .avatars { display: flex; margin-top: 12px; padding-left: 8px; }
.group-card .avatars .avatar { margin-right: -8px; border: 2px solid #fff; }

/* 模态框 */
.modal-root { position: fixed; inset: 0; z-index: 200; pointer-events: none; }
.modal-root.open { pointer-events: auto; }
.modal-mask { position: absolute; inset: 0; background: rgba(17, 24, 39, .5); opacity: 0; transition: .2s; }
.modal-root.open .modal-mask { opacity: 1; }
.modal {
  position: absolute; background: #fff; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); display: flex; flex-direction: column;
  max-height: 92vh; overflow: hidden;
  transition: transform .22s cubic-bezier(.2, .8, .3, 1), opacity .22s;
}
.modal.sm { width: min(420px, calc(100vw - 32px)); }
.modal.md { width: min(680px, calc(100vw - 32px)); }
.modal.lg { width: min(940px, calc(100vw - 32px)); }
.modal.center { left: 50%; top: 50%; transform: translate(-50%, -46%) scale(.97); opacity: 0; }
.modal-root.open .modal.center { transform: translate(-50%, -50%) scale(1); opacity: 1; }
.modal.bottom { left: 0; right: 0; bottom: 0; max-width: 720px; margin: 0 auto; border-radius: 18px 18px 0 0; transform: translateY(100%); }
.modal-root.open .modal.bottom { transform: translateY(0); }
.modal-head {
  display: flex; align-items: center; gap: 10px; flex: none;
  padding: 15px 16px; border-bottom: 1px solid var(--border-2);
}
.modal-head h3 { font-size: 15.5px; font-weight: 700; }
.modal-head .sub { font-size: 12px; color: var(--text-3); }
.modal-head .close { margin-left: auto; }
.modal-body { padding: 16px; overflow-y: auto; flex: 1; -webkit-overflow-scrolling: touch; }
.modal-foot {
  display: flex; gap: 8px; justify-content: flex-end; flex: none;
  padding: 12px 16px; border-top: 1px solid var(--border-2); background: var(--surface-2);
}
.modal-foot .left { margin-right: auto; }

/* 抽屉 */
.drawer-root { position: fixed; inset: 0; z-index: 210; pointer-events: none; }
.drawer-root.open { pointer-events: auto; }
.drawer-mask { position: absolute; inset: 0; background: rgba(17, 24, 39, .5); opacity: 0; transition: .2s; }
.drawer-root.open .drawer-mask { opacity: 1; }
.drawer {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: min(460px, 92vw); background: #fff; display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg); transform: translateX(100%); transition: transform .24s cubic-bezier(.2, .8, .3, 1);
}
.drawer-root.open .drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; gap: 10px; padding: 15px 16px; border-bottom: 1px solid var(--border-2); flex: none; }
.drawer-head h3 { font-size: 15.5px; font-weight: 700; }
.drawer-head .close { margin-left: auto; }
.drawer-body { flex: 1; overflow-y: auto; padding: 16px; }
.drawer-foot { padding: 12px 16px; border-top: 1px solid var(--border-2); display: flex; gap: 8px; justify-content: flex-end; background: var(--surface-2); flex: none; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-section { margin-bottom: 6px; }
.form-section-title {
  font-size: 12.5px; font-weight: 700; color: var(--primary);
  display: flex; align-items: center; gap: 6px; margin: 4px 0 10px;
}
.form-section-title::before { content: ""; width: 3px; height: 13px; background: var(--primary); border-radius: 2px; }
.form-item { display: flex; flex-direction: column; gap: 5px; }
.form-item > label { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.form-item > label .req { color: var(--danger); margin-left: 2px; }
.form-item input, .form-item select, .form-item textarea {
  height: 38px; padding: 0 10px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: #fff; outline: none; transition: .15s; width: 100%; font-size: 13.5px;
}
.form-item textarea { height: auto; min-height: 66px; padding: 8px 10px; resize: vertical; line-height: 1.5; }
.form-item select { cursor: pointer; }
.form-item input:focus, .form-item select:focus, .form-item textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
.form-item .hint { font-size: 11.5px; color: var(--text-3); }
.form-item.err input, .form-item.err select { border-color: var(--danger); }
.err-msg { color: var(--danger); font-size: 11.5px; }
.hint { font-size: 11.5px; color: var(--text-3); line-height: 1.6; }

/* 行内字段（label + 控件横排） */
.field-inline { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.field-inline > label { font-size: 12.5px; font-weight: 600; color: var(--text-2); }
.field-inline .inp { height: 34px; padding: 0 8px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; font-size: 13px; outline: none; }
.field-inline .inp:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }

/* 快捷选项片 */
.chips-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  height: 30px; padding: 0 12px; border-radius: 16px; border: 1px solid var(--border);
  background: #fff; color: var(--text-2); font-size: 12.5px; cursor: pointer; transition: .15s;
  display: inline-flex; align-items: center; gap: 5px;
}
.chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.chip.on { border-color: var(--primary); background: var(--primary); color: #fff; }

/* 策略状态标签 */
.policy-chip { display: flex; align-items: center; }
.policy-chip .badge { display: inline-flex; align-items: center; gap: 5px; }

/* 开关 */
.switch-row { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; user-select: none; margin-bottom: 4px; }
.switch-row .hint { margin-top: 2px; }
.switch { position: relative; width: 42px; height: 24px; flex: none; margin-top: 1px; }
.switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.switch i {
  position: absolute; inset: 0; border-radius: 12px; background: var(--border);
  transition: .18s; pointer-events: none;
}
.switch i::after {
  content: ""; position: absolute; left: 3px; top: 3px; width: 18px; height: 18px;
  border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .2); transition: .18s;
}
.switch input:checked + i { background: var(--primary); }
.switch input:checked + i::after { transform: translateX(18px); }

/* 照片上传 */
.photo-upload { display: flex; align-items: center; gap: 16px; }
.photo-box {
  width: 96px; height: 96px; border-radius: var(--radius);
  border: 2px dashed var(--border); background: var(--surface-2);
  display: grid; place-items: center; overflow: hidden; cursor: pointer;
  color: var(--text-3); position: relative; transition: .15s; flex: none;
}
.photo-box:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.photo-box img { width: 100%; height: 100%; object-fit: cover; }
.photo-box .ov {
  position: absolute; inset: 0; background: rgba(17, 24, 39, .55); color: #fff;
  display: grid; place-items: center; opacity: 0; transition: .15s; font-size: 11.5px;
}
.photo-box:hover .ov { opacity: 1; }

/* 详情列表 */
.detail-hero { display: flex; gap: 16px; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--border-2); margin-bottom: 4px; }
.detail-hero .nm { font-size: 19px; font-weight: 700; }
.detail-hero .sub { font-size: 12.5px; color: var(--text-3); }
.kv-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
.kv {
  display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--border-2);
  font-size: 13px; min-width: 0;
}
.kv .k { color: var(--text-3); flex: none; width: 72px; }
.kv .v { font-weight: 500; word-break: break-all; flex: 1; min-width: 0; }
.kv.full { grid-column: 1 / -1; }

/* 图表 */
.chart-box { width: 100%; }
.chart-box svg { width: 100%; height: auto; display: block; overflow: visible; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 10px; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-2); }
.legend-item .sw { width: 9px; height: 9px; border-radius: 3px; flex: none; }
.legend-item .ct { margin-left: auto; font-weight: 600; color: var(--text); }

/* Toast */
.toast-wrap { position: fixed; z-index: 500; top: 16px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 24px; font-size: 13.5px; font-weight: 500;
  background: #fff; color: var(--text); box-shadow: var(--shadow-lg);
  border: 1px solid var(--border); animation: toastIn .22s ease; max-width: 90vw;
}
.toast.success { border-color: #a7f3d0; background: var(--success-light); color: #065f46; }
.toast.error { border-color: #fecaca; background: var(--danger-light); color: #991b1b; }
.toast.info { border-color: #bfdbfe; background: var(--primary-light); color: #1e40af; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
.toast.out { animation: toastOut .2s ease forwards; }
@keyframes toastOut { to { opacity: 0; transform: translateY(-10px); } }

/* 下拉菜单 */
.menu {
  position: absolute; min-width: 168px; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 5px; z-index: 300; animation: menuIn .14s ease;
}
@keyframes menuIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.menu-item {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 8px 10px; border: 0; background: transparent; border-radius: 7px;
  cursor: pointer; font-size: 13.5px; color: var(--text-2); text-align: left;
}
.menu-item:hover { background: var(--surface-2); color: var(--text); }
.menu-item.danger { color: var(--danger); }
.menu-item.danger:hover { background: var(--danger-light); }
.menu-sep { height: 1px; background: var(--border-2); margin: 4px 0; }

/* 底部 Tab（移动端） */
@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%); transition: transform .24s cubic-bezier(.2, .8, .3, 1);
    box-shadow: var(--shadow-lg); width: 264px;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: grid; }
  .main { margin-left: 0; }
  .menu-btn { display: grid; }
  .tabbar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
    border-top: 1px solid var(--border); padding-bottom: env(safe-area-inset-bottom);
  }
  .tab-item {
    flex: 1; height: 54px; border: 0; background: transparent;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
    color: var(--text-3); font-size: 10.5px; cursor: pointer; transition: .12s; position: relative;
  }
  .tab-item.active { color: var(--primary); }
  .tab-item.active::before { content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 22px; height: 2.5px; background: var(--primary); border-radius: 0 0 3px 3px; }
  .view { padding: 14px 12px calc(72px + env(safe-area-inset-bottom)); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 13px; }
  .stat-card .ico { width: 36px; height: 36px; border-radius: 10px; }
  .stat-card .num { font-size: 20px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .topbar { padding: 0 12px; }
  .topbar-title h2 { font-size: 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .kv-list { grid-template-columns: 1fr; }
  .card-head, .toolbar, .card-body, .modal-body, .modal-foot, .pager { padding-left: 12px; padding-right: 12px; }
  .stu-cards { padding: 10px; gap: 10px; grid-template-columns: 1fr; }
  .modal.lg, .modal.md { width: 100vw; max-width: 100vw; border-radius: 0; height: 100vh; max-height: 100vh; }
  .modal.center { top: 0; left: 0; transform: none; }
  .modal-root.open .modal.center { transform: none; }
  .org-children .org-row { padding-left: 30px; }
  .org-children .org-children .org-row { padding-left: 46px; }
  .group-grid { grid-template-columns: 1fr; }
  .filter-item .sel, .filter-item .inp { min-width: 0; }
  .filter-item { flex: 1; min-width: calc(50% - 5px); }
  .search-box { max-width: none; }
  /* 日志页：时间范围在窄屏换行，快捷片可横向滚动 */
  .field-inline { width: 100%; }
  .field-inline .inp { flex: 1; min-width: 0; width: auto !important; }
  .chips-row { overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; -webkit-overflow-scrolling: touch; }
  .chip { flex: none; height: 32px; }
  .policy-chip { width: 100%; }
}

@media (max-width: 420px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .login-card { padding: 26px 20px 20px; }
}

@media (min-width: 1024px) {
  .hide-desktop { display: none !important; }
}

/* ---------------- 照片查看器 ---------------- */
.photo-viewer {
  position: fixed;
  inset: 0;
  z-index: 3000;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.photo-viewer.show { opacity: 1; }
.pv-mask { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.88); }
.pv-head {
  position: absolute; top: 0; left: 0; right: 0; z-index: 3;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 14px 16px; color: #fff;
}
.pv-info { min-width: 0; }
.pv-info .pv-title { font-size: 15px; font-weight: 600; }
.pv-info .pv-sub { font-size: 12.5px; color: rgba(255, 255, 255, 0.72); margin-top: 3px; }
.pv-actions { display: flex; gap: 6px; flex: none; }
.pv-actions .icon-btn.light {
  color: #fff; background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.2);
}
.pv-actions .icon-btn.light:hover { background: rgba(255, 255, 255, 0.26); }
.pv-stage {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  padding: 60px 72px 78px;
  overflow: auto;
}
.pv-stage .pv-img {
  max-width: 100%; max-height: 100%;
  border-radius: 10px; background: #fff;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  cursor: zoom-in;
}
.photo-viewer.zoomed .pv-stage .pv-img { max-width: 220%; max-height: 220%; cursor: zoom-out; }
.photo-viewer.loading .pv-img { visibility: hidden; }
.pv-spinner {
  position: absolute; width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.25); border-top-color: #fff;
  animation: pv-spin 0.8s linear infinite; display: none;
}
.photo-viewer.loading .pv-spinner { display: block; }
@keyframes pv-spin { to { transform: rotate(360deg); } }
.pv-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 4;
  width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: #fff; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
}
.pv-nav:hover { background: rgba(255, 255, 255, 0.28); }
.pv-nav.prev { left: 14px; }
.pv-nav.next { right: 14px; }
.pv-foot {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 12px 16px 16px; color: rgba(255, 255, 255, 0.72); font-size: 12.5px;
}
.pv-foot .pv-count { font-size: 13px; font-weight: 600; color: #fff; }
body.pv-open { overflow: hidden; }

@media (max-width: 768px) {
  .pv-stage { padding: 58px 12px 74px; }
  .pv-nav { width: 36px; height: 36px; }
  .pv-nav.prev { left: 6px; }
  .pv-nav.next { right: 6px; }
  .pv-head { padding: 10px 10px; }
  .pv-foot .pv-tip { display: none; }
}

/* 打印 */
@media print {
  .sidebar, .topbar, .tabbar, .toolbar, .pager, .row-actions { display: none !important; }
  .main { margin-left: 0; }
  .card { border: 0; box-shadow: none; }
}