/* 退款申请系统 - 全局样式 */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --success-dark: #15803d;
    --danger: #dc2626;
    --warning: #d97706;
    --bg: #f1f5f9;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 920px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.admin-main.container {
    max-width: 1100px;
}

.page-header {
    text-align: center;
    margin-bottom: 24px;
}

.page-header h1 {
    margin: 0 0 8px;
    font-size: 1.75rem;
}

.subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 24px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 20px;
}

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

.required {
    color: var(--danger);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input[type="file"] {
    width: 100%;
    padding: 8px 0;
    font-size: 0.95rem;
}

.hint {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 4px;
}

.field-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 4px;
}

.has-error input,
.has-error textarea {
    border-color: var(--danger);
}

.preview {
    margin-top: 10px;
}

.preview img {
    max-width: 180px;
    max-height: 180px;
    border-radius: 8px;
    border: 1px solid var(--border);
    object-fit: cover;
    display: block;
}

.preview-error {
    color: var(--danger);
    font-size: 0.875rem;
}

.form-actions {
    margin-top: 24px;
}

.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    line-height: 1.4;
    text-decoration: none !important;
    background: #e2e8f0;
    color: var(--text);
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover {
    filter: brightness(0.97);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

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

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

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

.btn-success:hover {
    background: var(--success-dark);
}

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

.btn-outline:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

.alert {
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: 0.95rem;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* 登录页 */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    margin: 0 0 4px;
    font-size: 1.5rem;
    text-align: center;
}

.login-card .subtitle {
    text-align: center;
    margin-bottom: 20px;
}

/* 后台 */
.admin-topbar {
    background: #0f172a;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    gap: 12px;
}

.admin-brand {
    font-weight: 700;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

.admin-user .btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
}

.admin-user .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 18px 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.stat-label {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.85rem;
    font-weight: 700;
}

.stat-pending .stat-value {
    color: var(--danger);
}

.stat-processed .stat-value {
    color: var(--success);
}

.stat-total .stat-value {
    color: var(--primary);
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}

.tab {
    padding: 6px 12px;
    border-radius: 999px;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none !important;
}

.tab:hover {
    background: #f1f5f9;
    color: var(--text);
}

.tab.active {
    background: #dbeafe;
    color: var(--primary-dark);
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.925rem;
}

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

.data-table th {
    background: #f8fafc;
    color: var(--muted);
    font-weight: 600;
    white-space: nowrap;
}

.data-table .empty {
    text-align: center;
    color: var(--muted);
    padding: 32px 12px;
}

.actions {
    white-space: nowrap;
}

.actions .btn {
    margin-right: 4px;
    margin-bottom: 4px;
}

.inline-form {
    display: inline;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-pending {
    background: #fee2e2;
    color: #991b1b;
}

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

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
    justify-content: center;
}

.page {
    min-width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none !important;
    font-size: 0.9rem;
    padding: 0 8px;
}

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

.page:hover:not(.current) {
    background: #f8fafc;
}

/* 详情页 */
.detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.detail-header h1 {
    margin: 0;
    font-size: 1.35rem;
}

.detail-list {
    margin: 0 0 24px;
}

.detail-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 8px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.detail-row dt {
    color: var(--muted);
    font-weight: 600;
    margin: 0;
}

.detail-row dd {
    margin: 0;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.image-grid figure {
    margin: 0;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.image-grid figcaption {
    padding: 8px 10px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
}

.image-grid img {
    display: block;
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: #fff;
}

.detail-actions {
    border-top: 1px solid var(--border);
    padding-top: 20px;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .image-grid {
        grid-template-columns: 1fr;
    }

    .detail-row {
        grid-template-columns: 1fr;
    }

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

    .card {
        padding: 20px 16px;
    }
}