:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --text: #1f2937;
  --muted: #667085;
  --line: #d9e0ea;
  --primary: #1769aa;
  --primary-2: #0e558f;
  --success: #147d64;
  --warning: #b76e00;
  --danger: #ba2f3f;
  --shadow: 0 8px 24px rgba(31, 41, 55, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 14px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(23, 105, 170, 0.92), rgba(20, 125, 100, 0.86)),
    url("data:image/svg+xml,%3Csvg width='160' height='160' viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.22'%3E%3Cpath d='M12 28h136M12 80h136M12 132h136M28 12v136M80 12v136M132 12v136'/%3E%3Ccircle cx='28' cy='28' r='4' fill='%23fff' fill-opacity='.28'/%3E%3Ccircle cx='80' cy='80' r='4' fill='%23fff' fill-opacity='.28'/%3E%3Ccircle cx='132' cy='132' r='4' fill='%23fff' fill-opacity='.28'/%3E%3C/g%3E%3C/svg%3E");
}

.login-panel {
  width: min(920px, 100%);
  min-height: 420px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  padding: 40px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  border-radius: 8px;
}

.login-panel h1 {
  margin: 0;
  font-size: 36px;
  line-height: 1.2;
}

.login-note {
  max-width: 440px;
  color: var(--muted);
  line-height: 1.8;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.login-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: none;
}

textarea {
  min-height: 84px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 105, 170, 0.13);
}

.primary,
.secondary,
.ghost,
.danger,
.success,
.small-btn {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
}

.primary {
  color: #fff;
  background: var(--primary);
}

.primary:hover {
  background: var(--primary-2);
}

.secondary {
  color: var(--primary);
  background: #e9f3fb;
}

.login-link {
  text-decoration: none;
}

.ghost {
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
}

.danger {
  color: #fff;
  background: var(--danger);
}

.success {
  color: #fff;
  background: var(--success);
}

.small-btn {
  min-height: 28px;
  padding: 0 9px;
  font-size: 12px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
}

.form-error {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  min-height: 100vh;
  background: #243447;
  color: #fff;
  overflow-y: auto;
}

.brand {
  min-height: 74px;
  display: grid;
  align-content: center;
  padding: 18px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand strong {
  font-size: 17px;
}

.brand span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
}

.side-nav {
  padding: 12px;
}

.nav-group {
  margin-bottom: 14px;
}

.nav-group-title {
  padding: 8px 10px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
}

.nav-item {
  width: 100%;
  min-height: 34px;
  justify-content: flex-start;
  padding: 0 10px;
  color: rgba(255, 255, 255, 0.82);
  background: transparent;
  border-radius: 6px;
  text-align: left;
}

.nav-item.active,
.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.main {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  min-height: 74px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.topbar h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.25;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.content {
  min-width: 0;
  padding: 18px 22px 32px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(31, 41, 55, 0.04);
}

.metric-card {
  min-height: 96px;
  padding: 16px;
  display: grid;
  align-content: center;
  gap: 8px;
}

.metric-card span {
  color: var(--muted);
  font-size: 13px;
}

.metric-card strong {
  font-size: 24px;
  line-height: 1.1;
}

.grid-2 {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.panel {
  min-width: 0;
}

.panel-head {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}

.panel-head h3 {
  margin: 0;
  font-size: 16px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.search {
  width: min(360px, 100vw - 48px);
}

.table-wrap {
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

th {
  color: var(--muted);
  background: #f8fafc;
  font-size: 12px;
  font-weight: 700;
}

tr:last-child td {
  border-bottom: 0;
}

.row-actions {
  display: flex;
  gap: 6px;
}

.status-pill {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 8px;
  border-radius: 999px;
  color: var(--text);
  background: #eef2f6;
  font-size: 12px;
}

.status-pill.warn {
  color: #7a4a00;
  background: #fff2d8;
}

.status-pill.danger {
  color: #8d1f2e;
  background: #ffe5e8;
}

.status-pill.ok {
  color: #0f604d;
  background: #daf3ec;
}

.empty-state {
  padding: 36px;
  color: var(--muted);
  text-align: center;
}

.pagination {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(17, 24, 39, 0.52);
}

.modal-card {
  width: min(980px, 100%);
  max-height: calc(100vh - 40px);
  display: grid;
  grid-template-rows: auto 1fr;
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-head {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.modal-head h3 {
  margin: 0;
}

.icon-btn {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 6px;
  color: var(--muted);
  background: #f2f5f8;
  font-size: 22px;
}

.modal-body {
  padding: 16px;
  overflow-y: auto;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.form-grid label.wide {
  grid-column: 1 / -1;
}

.form-actions {
  position: sticky;
  bottom: -16px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 16px -16px -16px;
  padding: 12px 16px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.settings-grid .panel {
  padding: 14px;
}

.settings-grid h3 {
  margin: 0 0 12px;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 40;
  max-width: min(360px, calc(100vw - 40px));
  padding: 12px 14px;
  color: #fff;
  background: #1f2937;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

@media (max-width: 1100px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-2,
  .settings-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .login-panel {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .login-panel h1 {
    font-size: 28px;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    min-height: 0;
    max-height: 280px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .cards,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 14px;
  }
}