* {
  box-sizing: border-box;
}

body.admin-body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  background: #f4f7fb;
  color: #1e2939;
}

.admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.admin-sidebar {
  background: linear-gradient(180deg, #101828 0%, #172337 100%);
  color: #fff;
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
}

.admin-brand-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.admin-brand-subtitle {
  color: rgba(255, 255, 255, 0.72);
  margin-top: 6px;
  font-size: 0.92rem;
}

.admin-nav {
  margin-top: 32px;
  display: grid;
  gap: 10px;
}

.admin-nav-link {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 14px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

.admin-sidebar-footer {
  margin-top: auto;
  padding-top: 24px;
}

.admin-user {
  font-weight: 600;
  margin-bottom: 10px;
}

.admin-ghost-link {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}

.admin-main {
  padding: 32px;
}

.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}

.admin-topbar h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}

.admin-topbar p {
  margin: 0;
  color: #64748b;
}

.admin-content,
.admin-form {
  display: grid;
  gap: 24px;
}

.admin-grid {
  display: grid;
  gap: 20px;
}

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

.admin-grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-card {
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  padding: 24px;
}

.admin-card h2,
.admin-card h3 {
  margin: 0 0 16px;
}

.admin-stat-value {
  font-size: 2rem;
  font-weight: 700;
}

.admin-stat-label,
.admin-help {
  color: #64748b;
}

.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.admin-field {
  display: grid;
  gap: 8px;
}

.admin-field input,
.admin-field textarea,
.admin-field select {
  width: 100%;
  border: 1px solid #d7deea;
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
}

.admin-field textarea {
  min-height: 160px;
  resize: vertical;
}

.admin-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.admin-button,
.admin-outline-button,
.admin-danger-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
}

.admin-button {
  background: linear-gradient(90deg, #fe6e00 0%, #e30076 100%);
  color: #fff;
}

.admin-outline-button {
  border: 1px solid #cdd7e5;
  color: #1e2939;
  background: #fff;
}

.admin-danger-button {
  background: #fff1f2;
  color: #be123c;
}

.admin-alert {
  border-radius: 16px;
  padding: 14px 18px;
}

.admin-alert.is-success {
  background: #dcfce7;
  color: #166534;
}

.admin-alert.is-error {
  background: #ffe4e6;
  color: #be123c;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 14px 12px;
  border-bottom: 1px solid #eef2f8;
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  font-size: 0.86rem;
  color: #64748b;
  font-weight: 700;
}

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.admin-badge.success {
  background: #dcfce7;
  color: #166534;
}

.admin-badge.muted {
  background: #e2e8f0;
  color: #475569;
}

.admin-thumb {
  width: 92px;
  height: 72px;
  object-fit: cover;
  border-radius: 12px;
  background: #f1f5f9;
}

.admin-image-preview {
  width: 100%;
  max-width: 360px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
}

.admin-image-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.admin-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-toolbar button {
  border: 1px solid #d7deea;
  background: #fff;
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

.admin-rich-editor {
  border: 1px solid #d7deea;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
}

.admin-rich-editor.is-empty .admin-rich-surface::before {
  content: attr(data-placeholder);
  color: #94a3b8;
}

.admin-rich-toolbar {
  padding: 12px;
  border-bottom: 1px solid #e2e8f0;
  background: #f8fafc;
}

.admin-rich-surface {
  min-height: 320px;
  padding: 18px;
  outline: none;
  line-height: 1.8;
}

.admin-rich-surface p,
.admin-rich-surface ul,
.admin-rich-surface ol,
.admin-rich-surface blockquote,
.admin-rich-surface h2,
.admin-rich-surface h3 {
  margin: 0 0 1rem;
}

.admin-rich-surface h2 {
  font-size: 1.6rem;
}

.admin-rich-surface h3 {
  font-size: 1.28rem;
}

.admin-rich-surface blockquote {
  margin-left: 0;
  padding-left: 14px;
  border-left: 4px solid #fdba74;
  color: #475569;
}

.admin-rich-surface ul,
.admin-rich-surface ol {
  padding-left: 1.4rem;
}

.admin-rich-surface img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1rem auto;
  border-radius: 12px;
}

.admin-rich-source,
.admin-toolbar-file {
  display: none;
}

.admin-rich-status {
  min-height: 22px;
  padding: 0 18px 14px;
  color: #64748b;
  font-size: 0.9rem;
}

.admin-rich-status.is-error {
  color: #be123c;
}

.admin-rich-status.is-success {
  color: #166534;
}

.admin-html-preview {
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 18px;
  background: #fff;
  min-height: 140px;
}

.admin-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.admin-login-card {
  width: 100%;
  max-width: 480px;
  background: #fff;
  padding: 32px;
  border-radius: 24px;
  box-shadow: 0 24px 54px rgba(15, 23, 42, 0.12);
}

@media (max-width: 1024px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .admin-main {
    padding: 20px;
  }

  .admin-form-grid,
  .admin-grid.cols-2,
  .admin-grid.cols-3 {
    grid-template-columns: 1fr;
  }

  .admin-topbar {
    flex-direction: column;
  }
}