:root {
  --navy: #16223d;
  --navy-2: #0f1a32;
  --gold: #ffbc3b;
  --blue: #2457d6;
  --green: #1f9b68;
  --red: #d64545;
  --ink: #172033;
  --muted: #657084;
  --line: #e1e7f0;
  --paper: #f5f6fa;
  --white: #ffffff;
  --shadow: 0 14px 36px rgba(26, 39, 68, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", Arial, sans-serif;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px;
  color: var(--white);
  background: var(--navy);
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
  color: inherit;
  text-decoration: none;
}

.admin-brand span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--navy);
  background: var(--gold);
  border-radius: 8px;
  font-weight: 800;
}

.sidebar nav {
  display: grid;
  gap: 8px;
}

.sidebar nav a {
  padding: 12px 14px;
  color: #dce4f3;
  border-radius: 8px;
  text-decoration: none;
}

.sidebar nav a:hover {
  color: var(--navy);
  background: var(--gold);
}

.admin-main {
  padding: 28px;
}

.admin-topbar,
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.admin-topbar {
  margin-bottom: 24px;
}

.admin-topbar p,
.section-title h2 {
  margin: 0;
}

.admin-topbar p {
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
}

.admin-topbar h1 {
  margin: 4px 0 0;
  font-size: 34px;
}

.view-site,
button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  color: var(--navy);
  background: var(--gold);
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.secondary-btn {
  background: var(--blue);
  color: var(--white);
}

.danger-btn {
  color: var(--white);
  background: var(--red);
}

.panel {
  margin-bottom: 24px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.stat-grid article {
  padding: 22px;
  background: var(--paper);
  border-left: 5px solid var(--gold);
  border-radius: 8px;
}

.stat-grid span,
.empty {
  color: var(--muted);
}

.stat-grid strong {
  display: block;
  margin-top: 8px;
  color: var(--navy);
  font-size: 34px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--navy);
  background: var(--paper);
}

.editor-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
  padding: 18px;
  background: var(--paper);
  border-radius: 8px;
}

.editor-form label {
  display: grid;
  gap: 8px;
  color: var(--navy);
  font-weight: 800;
}

.editor-form .full,
.editor-form button {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

textarea {
  resize: vertical;
}

.card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.admin-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.admin-card small {
  color: var(--blue);
  font-weight: 800;
}

.admin-card h3 {
  margin: 8px 0;
}

.admin-card p {
  color: var(--muted);
}

.card-actions {
  display: flex;
  gap: 8px;
}

.card-actions button {
  min-height: 36px;
}

@media (max-width: 960px) {
  body {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .stat-grid,
  .card-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .admin-main,
  .sidebar {
    padding: 18px;
  }

  .admin-topbar,
  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .stat-grid,
  .card-list,
  .editor-form {
    grid-template-columns: 1fr;
  }
}