:root {
    --admin-bg: #f4f6f9;
    --admin-sidebar: #1e293b;
    --admin-sidebar-text: #cbd5e1;
    --admin-accent: #e74c3c;
    --admin-card: #fff;
    --admin-border: #e2e8f0;
    --admin-text: #334155;
    --admin-muted: #64748b;
    --admin-radius: 10px;
    --admin-font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

body.admin-body {
    margin: 0;
    font-family: var(--admin-font);
    font-size: 14px;
    color: var(--admin-text);
    background: var(--admin-bg);
    line-height: 1.5;
}

a { color: var(--admin-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.admin-login-card {
    width: 100%;
    max-width: 400px;
    background: var(--admin-card);
    border-radius: var(--admin-radius);
    padding: 32px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.admin-login-card h1 {
    margin: 0 0 8px;
    font-size: 22px;
}

.admin-login-card p {
    margin: 0 0 24px;
    color: var(--admin-muted);
}

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

.admin-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--admin-sidebar);
    color: var(--admin-sidebar-text);
    padding: 20px 0;
}

.admin-brand {
    padding: 0 20px 20px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 12px;
}

.admin-nav a {
    display: block;
    padding: 10px 20px;
    color: var(--admin-sidebar-text);
    text-decoration: none;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    text-decoration: none;
}

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

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--admin-card);
    border-bottom: 1px solid var(--admin-border);
}

.admin-content {
    padding: 24px;
    flex: 1;
}

.admin-card {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 20px;
}

.admin-card + .admin-card { margin-top: 16px; }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.admin-stat {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 20px;
}

.admin-stat strong {
    display: block;
    font-size: 28px;
    color: var(--admin-accent);
    margin-bottom: 4px;
}

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

.admin-table th,
.admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--admin-border);
    text-align: left;
    vertical-align: top;
}

.admin-table th {
    font-weight: 600;
    background: #f8fafc;
}

.admin-form-grid {
    display: grid;
    gap: 16px;
}

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

@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .admin-form-grid.two-col { grid-template-columns: 1fr; }
}

.admin-field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.admin-field input[type="text"],
.admin-field input[type="email"],
.admin-field input[type="password"],
.admin-field input[type="url"],
.admin-field input[type="number"],
.admin-field input[type="datetime-local"],
.admin-field select,
.admin-field textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--admin-border);
    border-radius: 6px;
    font: inherit;
}

.admin-field textarea { min-height: 120px; resize: vertical; }
.admin-field textarea.tall { min-height: 240px; }

.admin-field .cke_chrome {
    border-radius: 6px !important;
    border-color: var(--admin-border) !important;
    overflow: hidden;
}

.admin-field .cke_top {
    border-bottom-color: var(--admin-border) !important;
    background: #f8fafc !important;
}

.admin-field .cke_bottom {
    background: #f8fafc !important;
    border-top-color: var(--admin-border) !important;
}

.admin-field .hint {
    margin-top: 4px;
    font-size: 12px;
    color: var(--admin-muted);
}

.admin-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 6px;
    border: 1px solid transparent;
    font: inherit;
    cursor: pointer;
    text-decoration: none;
}

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

.btn-primary:hover { filter: brightness(0.95); text-decoration: none; color: #fff; }

.btn-secondary {
    background: #fff;
    border-color: var(--admin-border);
    color: var(--admin-text);
}

.btn-danger {
    background: #fff;
    border-color: #fecaca;
    color: #b91c1c;
}

.btn-sm { padding: 4px 10px; font-size: 13px; }

.admin-alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.admin-alert-success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}

.admin-alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.admin-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.admin-page-header h1 {
    margin: 0;
    font-size: 22px;
}

.admin-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    background: #f1f5f9;
}

.admin-badge.on { background: #dcfce7; color: #166534; }
.admin-badge.off { background: #fee2e2; color: #991b1b; }
.admin-badge.warn { background: #fef3c7; color: #92400e; }

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

.admin-filter-tabs a {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    color: #475569;
    background: #f1f5f9;
    text-decoration: none;
}

.admin-filter-tabs a.active,
.admin-filter-tabs a:hover {
    color: #fff;
    background: #2563eb;
}

.admin-inline-form { display: inline; }

.admin-image-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.admin-image-field > label:first-child {
    margin-bottom: 0;
}

.admin-image-url-label {
    margin-top: 4px;
}

.admin-thumb-preview {
    margin-bottom: 2px;
}

.admin-thumb-preview[hidden] {
    display: none !important;
}

.admin-thumb-preview img {
    display: block;
    max-width: 240px;
    max-height: 140px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
    background: #f8fafc;
}

.admin-table-thumb {
    width: 72px;
    height: 48px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--admin-border);
    background: #f8fafc;
}

.admin-table-thumb img,
.admin-table-thumb .article-thumb-fallback {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.admin-table-thumb .article-thumb-fallback {
    aspect-ratio: auto;
    padding-bottom: 0;
    min-height: 48px;
}

.admin-table-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--admin-border);
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-table-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.admin-table-icon-fallback {
    font-size: 16px;
    font-weight: 700;
    color: #e11d48;
    line-height: 1;
}

/* ===== 分页 ===== */
.pagination-wrap {
    margin-top: 16px;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.pagination li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border: 1px solid var(--admin-border);
    border-radius: 6px;
    background: #fff;
    color: var(--admin-text);
    font-size: 13px;
    text-decoration: none;
    line-height: 1;
}

.pagination a:hover {
    border-color: var(--admin-accent);
    color: var(--admin-accent);
    text-decoration: none;
}

.pagination li.active span {
    background: var(--admin-accent);
    border-color: var(--admin-accent);
    color: #fff;
    font-weight: 600;
}

.pagination li.disabled span,
.pagination li span:not(.active) {
    color: var(--admin-muted);
}