/*
 * 管理后台只负责页面布局与业务组件外观。
 * 颜色、阴影和动效沿用全站基础令牌，避免后台再次形成独立主题。
 */
:root {
    --admin-sidebar-width: 248px;
    --admin-content-width: 1440px;
    --primary-color: var(--primary);
    --primary-dark: var(--primary-strong);
    --success-color: var(--success);
    --warning-color: var(--warning);
    --danger-color: var(--danger);
    --bg-primary: var(--surface-muted);
    --bg-secondary: var(--surface);
    --bg-tertiary: var(--surface-strong);
    --text-primary: var(--text);
    --text-secondary: var(--text-muted);
    --border-color: var(--border);
    --shadow-sm: var(--shadow-small);
    --shadow-md: var(--shadow-soft);
    --shadow-lg: var(--shadow-raised);
}

body {
    min-width: 320px;
    overflow: hidden;
}

button,
a,
.nav-item {
    -webkit-tap-highlight-color: transparent;
}

.admin-container {
    display: grid;
    grid-template-columns: var(--admin-sidebar-width) minmax(0, 1fr);
    min-height: 100vh;
}

/* 桌面端侧栏保持可见，业务视图滚动时导航不会离开屏幕。 */
.sidebar {
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
    display: flex;
    width: var(--admin-sidebar-width);
    height: 100vh;
    min-height: 0;
    flex-direction: column;
    margin: 0;
    overflow: hidden;
    border-right: 1px solid var(--border);
    color: var(--text);
    background: var(--surface);
    box-shadow: none;
}

.sidebar-header {
    padding: 28px 24px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-strong);
    font-size: 1.05rem;
    font-weight: 750;
    letter-spacing: -0.015em;
}

.logo .icon {
    width: 28px;
    height: 28px;
    padding: 5px;
    border-radius: 10px;
    background: var(--primary-soft);
    box-shadow: var(--shadow-small);
}

.sidebar-nav {
    min-height: 0;
    flex: 1;
    padding: 12px 14px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.sidebar-nav ul {
    display: grid;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.nav-item {
    display: flex;
    min-height: 48px;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: 0.92rem;
    font-weight: 650;
    cursor: pointer;
    transition: color var(--ease), background-color var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.nav-item .icon {
    width: 20px;
    height: 20px;
}

@media (hover: hover) and (pointer: fine) {
    .nav-item:hover {
        color: var(--text);
        background: var(--surface-strong);
        box-shadow: var(--shadow-small);
        transform: translateY(-1px);
    }
}

.nav-item:active {
    transform: translateY(1px);
    box-shadow: var(--shadow-inset);
}

.nav-item.active {
    border-color: color-mix(in srgb, var(--primary) 26%, transparent);
    color: var(--primary-strong);
    background: var(--primary-soft);
    box-shadow: var(--shadow-inset);
}

.sidebar-footer {
    display: grid;
    gap: 10px;
    padding: 16px 18px 20px;
    border-top: 1px solid var(--border);
}

.btn-theme-toggle,
.btn-logout {
    width: 100%;
    justify-content: center;
}

.btn-theme-toggle {
    position: relative;
}

.theme-icon {
    display: inline-grid;
    place-items: center;
}

.theme-icon .icon {
    width: 18px;
    height: 18px;
}

.moon-icon {
    display: none;
}

:root[data-theme="dark"] .sun-icon {
    display: none;
}

:root[data-theme="dark"] .moon-icon {
    display: inline-grid;
}

.main-content {
    min-width: 0;
    height: 100vh;
    overflow: hidden;
}

/* 登录态隐藏侧栏时，主内容必须跨越整个网格，不能遗留空白列。 */
.sidebar[style*="display: none"] + .main-content {
    grid-column: 1 / -1;
}

.view {
    width: min(100%, var(--admin-content-width));
    height: 100%;
    padding: clamp(20px, 3vw, 36px);
    margin: 0 auto;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 24px;
}

.view-header h1,
.security-section h2,
.quick-actions-section h2,
.system-info-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    color: var(--text);
}

.view-header h1 {
    font-size: clamp(1.45rem, 2.4vw, 2rem);
    line-height: 1.2;
    letter-spacing: -0.03em;
}

.view-header h1 .icon,
.security-section h2 .icon,
.quick-actions-section h2 .icon,
.system-info-section h2 .icon {
    color: var(--primary);
}

.view-actions,
.config-actions,
.modal-actions,
.modal-footer,
.result-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

/* 登录采用纯色留白，减少装饰对凭据输入的干扰。 */
.login-view {
    position: relative;
    align-items: center;
    justify-content: center;
    isolation: isolate;
    overflow: hidden;
}

.login-container {
    width: min(100%, 460px);
    margin: auto;
}

.login-card,
.register-card,
.setting-group,
.security-section,
.sub-admins-content,
.quick-actions-section,
.system-info-section {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface);
    box-shadow: var(--shadow-soft);
}

.login-card {
    padding: clamp(26px, 5vw, 44px);
}

.login-header {
    margin-bottom: 28px;
    text-align: center;
}

.login-header > .icon {
    width: 58px;
    height: 58px;
    padding: 14px;
    margin-bottom: 16px;
    border-radius: 20px;
    color: var(--primary-strong);
    background: var(--primary-soft);
    box-shadow: var(--shadow-soft);
}

.login-header h1 {
    margin: 0 0 8px;
    font-size: 1.65rem;
    letter-spacing: -0.025em;
}

.login-header p,
.login-footer p {
    color: var(--text-muted);
}

.login-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.86rem;
}

.login-footer p {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
}

/* 以边框和聚焦环明确输入区域，不依赖拟态阴影。 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 8px;
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 700;
}

.form-group input:not([type="checkbox"]):not([type="radio"]),
.form-group textarea,
.form-group select,
.search-box input,
.source-filter select,
.page-size-selector select {
    width: 100%;
    min-height: 46px;
    padding: 11px 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    outline: 0;
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-inset);
    transition: border-color var(--ease), box-shadow var(--ease), background-color var(--ease);
}

.form-group textarea {
    min-height: 90px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus,
.search-box input:focus,
.source-filter select:focus,
.page-size-selector select:focus {
    border-color: var(--primary);
    outline: 2px solid var(--focus);
    outline-offset: 3px;
    box-shadow: none;
}

.form-group input:disabled,
.form-group textarea:disabled,
.form-group select:disabled {
    color: var(--text-faint);
    background: var(--surface-muted);
}

.form-group small {
    display: block;
    margin-top: 7px;
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

input[type="checkbox"],
input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

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

.text-muted {
    color: var(--text-muted);
}

.error-message {
    display: none;
    padding: 12px 14px;
    margin-top: 16px;
    border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
    border-radius: var(--radius-md);
    color: var(--danger);
    background: var(--danger-soft);
}

/* 交互使用短促的边框和色彩反馈，忙碌状态保留布局尺寸。 */
.btn,
.btn-preset,
.filter-btn,
.quick-action-card {
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-small);
}

.btn {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
}

.btn-primary {
    border-color: transparent;
    color: var(--on-primary);
    background: var(--primary);
}

.btn-success {
    border-color: transparent;
    color: var(--on-primary);
    background: var(--primary);
}

.btn-warning {
    color: var(--warning);
    background: var(--warning-soft);
}

.btn-danger {
    border-color: transparent;
    color: var(--danger);
    background: var(--danger-soft);
}

.btn-secondary,
.btn-theme-toggle,
.btn-logout {
    color: var(--text);
    background: var(--surface);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    min-height: 44px;
    padding: 7px 11px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.btn-icon,
.modal-close,
.close-btn {
    display: inline-grid;
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    background: var(--surface);
    box-shadow: var(--shadow-small);
    transition: color var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.btn-icon .icon,
.modal-close .icon,
.close-btn .icon {
    width: 18px;
    height: 18px;
}

.btn-icon.btn-danger {
    color: var(--danger);
    background: var(--danger-soft);
}

@media (hover: hover) and (pointer: fine) {
    .btn-icon:hover,
    .modal-close:hover,
    .close-btn:hover,
    .btn-preset:hover,
    .filter-btn:hover,
    .quick-action-card:hover {
        border-color: var(--border-strong);
        color: var(--primary-strong);
        box-shadow: none;
        transform: translateY(-1px);
    }

    .btn-logout:hover {
        border-color: color-mix(in srgb, var(--danger) 40%, transparent);
        color: var(--danger);
        background: var(--danger-soft);
    }
}

.btn-icon:active,
.modal-close:active,
.close-btn:active,
.btn-preset:active,
.filter-btn:active,
.quick-action-card:active {
    transform: translateY(1px);
    box-shadow: var(--shadow-inset);
}

/* 仪表盘使用紧凑 Bento 网格，但数值与标题保持高对比。 */
.dashboard-content-scroll {
    min-height: 100%;
}

.welcome-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 8px 0 28px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    background: transparent;
    box-shadow: var(--shadow-soft);
}

.welcome-content h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 5px;
    color: var(--text);
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    letter-spacing: -0.035em;
}

.welcome-content p {
    margin: 0;
    color: var(--text-muted);
}

.welcome-time {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-inset);
    font-variant-numeric: tabular-nums;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-small);
    transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}


.stat-icon,
.quick-action-icon,
.info-icon {
    display: grid;
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    place-items: center;
    border-radius: 12px;
    color: var(--primary-strong);
    background: var(--primary-soft);
    box-shadow: var(--shadow-inset);
}

.stat-icon .icon,
.quick-action-icon .icon,
.info-icon .icon {
    width: 22px;
    height: 22px;
}

.stat-content,
.stat-info,
.info-content,
.quick-action-content {
    min-width: 0;
}

.stat-value {
    color: var(--text);
    font-size: clamp(1.45rem, 2.8vw, 2rem);
    font-weight: 800;
    line-height: 1.15;
    font-variant-numeric: tabular-nums;
}

.stat-label,
.info-label {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 650;
}

.quick-actions-section,
.system-info-section {
    padding: 22px;
}

.dashboard-panels {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(250px, 1fr);
    align-items: start;
    gap: 20px;
}

.quick-actions-section h2,
.system-info-section h2 {
    margin-bottom: 16px;
}

.quick-actions-grid,
.info-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.quick-action-card {
    display: flex;
    min-width: 0;
    min-height: 84px;
    align-items: center;
    gap: 14px;
    padding: 15px;
    border-radius: var(--radius-lg);
    text-align: left;
    transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.quick-action-title {
    margin: 0 0 3px;
    color: var(--text);
    font-size: 0.95rem;
}

.quick-action-content p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.78rem;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
}

.info-card .info-icon {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
    border-radius: 13px;
}

.info-value {
    color: var(--text);
    font-weight: 700;
}

/* 筛选区允许自然换行，避免在中等屏幕压缩表单标签。 */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-small);
}

.search-box {
    position: relative;
    min-width: min(100%, 260px);
    flex: 1 1 280px;
}

.search-box > .icon {
    position: absolute;
    top: 50%;
    left: 14px;
    z-index: 1;
    color: var(--text-muted);
    transform: translateY(-50%);
}

.search-box input {
    padding-left: 42px;
}

.filter-buttons {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
}

.filter-btn,
.btn-preset {
    min-height: 44px;
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 700;
    transition: color var(--ease), background-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.filter-btn.active,
.btn-preset:focus-visible {
    border-color: color-mix(in srgb, var(--primary) 30%, transparent);
    color: var(--primary-strong);
    background: var(--primary-soft);
    box-shadow: var(--shadow-inset);
}

.source-filter,
.page-size-selector {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 650;
}

.source-filter label,
.page-size-selector label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.source-filter select,
.page-size-selector select {
    width: auto;
    min-width: 88px;
    min-height: 44px;
    padding: 7px 32px 7px 11px;
}

/* 所有数据表格使用实色表面和明确分隔线，数据可读性优先于拟态效果。 */
.mailbox-list-container,
.audit-log-container,
.blocked-ips-container,
.table-container {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    background: var(--surface-flat);
    box-shadow: var(--shadow-small);
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
}

.mailbox-table,
.audit-table,
.security-table,
.data-table {
    width: 100%;
    min-width: 820px;
    border-collapse: separate;
    border-spacing: 0;
    color: var(--text);
    background: var(--surface-flat);
}

.mailbox-table {
    min-width: 1040px;
}

.data-table {
    min-width: 1120px;
}

.mailbox-table thead,
.audit-table thead,
.security-table thead,
.data-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
    color: var(--text);
    background: var(--surface-strong);
}

.mailbox-table th,
.mailbox-table td,
.audit-table th,
.audit-table td,
.security-table th,
.security-table td,
.data-table th,
.data-table td {
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
    font-size: 0.84rem;
    overflow-wrap: anywhere;
}

.mailbox-table th,
.audit-table th,
.security-table th,
.data-table th {
    color: var(--text);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.mailbox-table tbody tr,
.audit-table tbody tr,
.security-table tbody tr,
.data-table tbody tr {
    background: var(--surface-flat);
    transition: background-color var(--ease);
}

.mailbox-table tbody tr:hover,
.audit-table tbody tr:hover,
.security-table tbody tr:hover,
.data-table tbody tr:hover {
    background: var(--primary-soft);
}

.mailbox-table tbody tr:last-child td,
.audit-table tbody tr:last-child td,
.security-table tbody tr:last-child td,
.data-table tbody tr:last-child td {
    border-bottom: 0;
}

.actions-cell {
    min-width: 138px;
    text-align: right !important;
    white-space: nowrap;
}

.action-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 7px;
}

.mailbox-address {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 7px;
}

.mailbox-address-text {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mailbox-shield-indicator {
    display: inline-flex;
    flex: 0 0 auto;
    color: var(--primary);
}

.mailbox-shield-icon {
    width: 17px;
    height: 17px;
}

.loading-row,
.loading-cell,
.empty-row,
.empty-cell,
.error-row {
    padding: 40px 18px !important;
    color: var(--text-muted);
    text-align: center !important;
}

.error-row {
    color: var(--danger);
    background: var(--danger-soft) !important;
}

.loading-row .icon,
.loading-cell .icon,
.empty-cell > .icon {
    margin-right: 6px;
    vertical-align: -0.18em;
}

.is-spinning {
    animation: admin-spin 0.8s linear infinite;
}

@keyframes admin-spin {
    to { transform: rotate(360deg); }
}

.status-badge,
.source-badge,
.action-badge,
.domain-tag {
    display: inline-flex;
    min-height: 28px;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    font-size: 0.74rem;
    font-weight: 750;
    line-height: 1.2;
    white-space: nowrap;
}

.status-badge.active,
.status-active {
    border-color: color-mix(in srgb, var(--success) 35%, transparent);
    color: var(--success);
    background: var(--success-soft);
}

.status-badge.expired,
.status-inactive {
    border-color: color-mix(in srgb, var(--danger) 35%, transparent);
    color: var(--danger);
    background: var(--danger-soft);
}

.status-badge.disabled {
    border-color: var(--border);
    color: var(--text-muted);
    background: var(--surface-muted);
}

.source-admin,
.source-register,
.source-api,
.source-unknown {
    color: var(--primary-strong);
    background: var(--primary-soft);
}

.source-register {
    color: var(--success);
    background: var(--success-soft);
}

.source-api {
    color: var(--info);
    background: var(--info-soft);
}

.source-unknown {
    color: var(--text-muted);
    background: var(--surface-muted);
}

.action-badge {
    border-color: var(--border);
    color: var(--text);
    background: var(--surface-muted);
}

.domain-tag {
    border-color: var(--border);
    color: var(--text);
    background: var(--surface-strong);
}

.domains-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 22px;
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-wrap: wrap;
}

.pagination-buttons .btn.active {
    border-color: transparent;
    color: var(--on-primary);
    background: var(--primary);
    box-shadow: var(--shadow-inset);
}

/* 邮箱创建、安全与设置页面复用同一种大卡片，不再各自维护渐变。 */
.register-content {
    width: min(100%, 860px);
    margin: 0 auto;
}

.register-card {
    padding: clamp(20px, 4vw, 32px);
}

.register-mode-toggle {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.mode-option,
.checkbox-label {
    display: flex;
    min-height: 44px;
    align-items: center;
    gap: 9px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    cursor: pointer;
    transition: border-color var(--ease), background-color var(--ease), box-shadow var(--ease);
}

.mode-option:has(input:checked),
.checkbox-label:has(input:checked) {
    border-color: color-mix(in srgb, var(--primary) 40%, transparent);
    background: var(--primary-soft);
    box-shadow: var(--shadow-inset);
}

.email-input-group {
    display: grid;
    grid-template-columns: minmax(120px, 1fr) auto minmax(150px, 1fr) 46px;
    align-items: center;
    gap: 9px;
}

.at-symbol {
    color: var(--text-muted);
    font-weight: 800;
}

.input-with-presets {
    display: grid;
    gap: 10px;
}

.preset-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.register-result {
    margin-top: 18px;
}

/* 预览弱化视觉层级，让管理员先核对地址再执行批量创建。 */
.batch-preview {
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    box-shadow: var(--shadow-inset);
}

.batch-preview-header,
.batch-progress-copy {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.batch-preview-header label,
.batch-preview-header small {
    margin: 0;
}

.batch-preview-list {
    display: grid;
    gap: 8px;
    padding-left: 24px;
    margin: 12px 0 0;
}

.batch-preview-list li {
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
    overflow-wrap: anywhere;
}

.batch-preview-list .batch-preview-empty {
    color: var(--text-muted);
    font-family: inherit;
}

.batch-progress {
    display: grid;
    gap: 10px;
    padding: 14px;
    margin-bottom: 16px;
    border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent);
    border-radius: var(--radius-md);
    background: var(--primary-soft);
}

.batch-progress progress {
    width: 100%;
    height: 10px;
    accent-color: var(--primary-strong);
}

.success-message {
    display: grid;
    justify-items: center;
    gap: 10px;
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid color-mix(in srgb, var(--success) 30%, transparent);
    border-radius: var(--radius-lg);
    color: var(--success);
    background: var(--success-soft);
}

.success-message .icon {
    width: 40px;
    height: 40px;
}

.success-message h2 {
    margin: 0;
}

/* 批量部分失败和全部失败使用对应状态色，防止管理员把失败结果误判为成功。 */
.batch-completion-message.warning {
    border-color: color-mix(in srgb, var(--warning) 34%, transparent);
    color: var(--warning);
    background: var(--warning-soft);
}

.batch-completion-message.error {
    border-color: color-mix(in srgb, var(--danger) 34%, transparent);
    color: var(--danger);
    background: var(--danger-soft);
}

.mailbox-info,
.batch-result-list,
.quick-access-box {
    display: grid;
    gap: 14px;
    padding: 18px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-strong);
    box-shadow: var(--shadow-inset);
}

/* 大批量结果固定在卡片内滚动，避免 100 条结果把页面无限拉长。 */
.batch-result-list {
    max-height: 340px;
    align-content: start;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.batch-completion-text {
    margin: 0;
    color: var(--text-muted);
}

.info-item {
    display: grid;
    gap: 6px;
}

.info-item label,
.quick-access-label {
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 750;
}

.info-item .info-value,
.token-box,
.token-display-inline,
.quick-access-url {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-inset);
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
    word-break: break-all;
}

.token-box,
.token-display-inline {
    display: flex;
    align-items: center;
    gap: 9px;
}

.token-box code,
.token-display-inline code {
    min-width: 0;
    flex: 1;
    word-break: break-all;
}

.warning-alert,
.alert,
.config-note {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    padding: 12px 14px;
    border: 1px solid color-mix(in srgb, var(--warning) 32%, transparent);
    border-radius: var(--radius-md);
    color: var(--warning);
    background: var(--warning-soft);
}

.warning-text {
    color: var(--warning);
}

.access-link {
    color: var(--primary-strong);
    word-break: break-all;
}

.batch-result-item {
    display: grid;
    gap: 10px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.batch-result-item.success {
    border-color: color-mix(in srgb, var(--success) 35%, transparent);
}

.batch-result-item.error {
    border-color: color-mix(in srgb, var(--danger) 35%, transparent);
}

.batch-result-summary,
.batch-result-item .address {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.security-section,
.sub-admins-content {
    padding: clamp(18px, 3vw, 26px);
    margin-bottom: 20px;
}

.security-section > h2 {
    margin-bottom: 16px;
}

.config-form {
    display: grid;
    gap: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.source-stats-container .stats-grid {
    margin-bottom: 0;
}

.settings-content {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.setting-group {
    padding: 22px;
}

.setting-group h2 {
    margin: 0 0 6px;
}

.setting-description {
    margin: 0 0 18px;
    color: var(--text-muted);
}

.domains-checkbox-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 9px;
    max-height: 280px;
    padding: 12px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-muted);
}

/* 模态框保留 show 兼容类，但新交互统一由共享组件的 is-open 管理焦点。 */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-dialog);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
    background: rgba(10, 22, 19, 0.48);
    backdrop-filter: blur(5px);
}

.modal.show,
.modal.is-open {
    display: flex;
}

.modal-content {
    width: min(100%, 560px);
    max-height: min(84vh, 720px);
    max-height: min(84dvh, 720px);
    overflow-y: auto;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl);
    color: var(--text);
    background: var(--surface);
    box-shadow: var(--shadow-raised);
    animation: admin-dialog-in var(--ease-state) both;
}

/* 根据内容密度分档，短确认不再继承表单或详情的大尺寸。 */
.modal-content--compact {
    width: min(100%, 420px);
    max-height: min(76vh, 560px);
    max-height: min(76dvh, 560px);
}

.modal-content--medium {
    width: min(100%, 560px);
    max-height: min(84vh, 720px);
    max-height: min(84dvh, 720px);
}

.modal-content--wide,
.modal-content.modal-large {
    width: min(100%, 760px);
    max-height: min(88vh, 800px);
    max-height: min(88dvh, 800px);
}

.modal-header,
.modal-body,
.modal-footer,
.modal-content > form {
    padding: 18px clamp(18px, 3vw, 22px);
}

.modal-header {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.modal-header h2,
.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 0;
    font-size: 1.15rem;
}

.modal-footer {
    position: sticky;
    bottom: 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.modal-actions {
    margin-top: 22px;
}

.modal-message {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.65;
}

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

.detail-item {
    display: grid;
    min-width: 0;
    gap: 6px;
}

.detail-item.full-width {
    grid-column: 1 / -1;
}

.detail-item label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.76rem;
    font-weight: 750;
}

.detail-item > div:not(.token-box):not(.token-display-inline),
.detail-item pre,
.audit-log-content {
    min-width: 0;
    padding: 10px 12px;
    margin: 0;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    background: var(--surface-strong);
    word-break: break-word;
}

.json-viewer,
code {
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.storage-info {
    display: grid;
    gap: 7px;
}

.storage-bar {
    height: 12px;
    overflow: hidden;
    border-radius: var(--radius-pill);
    background: var(--surface-muted);
    box-shadow: var(--shadow-inset);
}

.storage-used {
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
    transition: width var(--ease);
}

.storage-text {
    color: var(--text-muted);
    font-size: 0.78rem;
}

@keyframes admin-dialog-in {
    from { opacity: 0; transform: translateY(12px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 共享 Toast 负责行为，页面只补充位置与语义色。 */
.toast-container,
.ui-toast-region {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: var(--z-toast);
    display: grid;
    width: min(380px, calc(100vw - 32px));
    gap: 10px;
    pointer-events: none;
}

.ui-toast {
    border-left: 4px solid var(--info);
}

.ui-toast[data-type="success"] {
    border-left-color: var(--success);
}

.ui-toast[data-type="warning"] {
    border-left-color: var(--warning);
}

.ui-toast[data-type="error"] {
    border-left-color: var(--danger);
}

.ui-toast-icon {
    width: 20px;
    height: 20px;
}

.ui-toast-message {
    min-width: 0;
    overflow-wrap: anywhere;
}

/* 大屏略收窄侧栏，中屏改为两列统计，避免内容突然拥挤。 */
@media (max-width: 1180px) {
    :root {
        --admin-sidebar-width: 232px;
    }

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

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

/* 移动端导航横向吸顶；品牌和退出入口仍保留，避免功能消失。 */
@media (max-width: 820px) {
    body {
        overflow: auto;
    }

    .admin-container {
        display: block;
    }

    .sidebar {
        position: sticky;
        top: 0;
        width: 100%;
        height: auto;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-rows: auto auto;
        border-right: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: none;
    }

    /* 登录逻辑会写入 display:flex；仅在侧栏未隐藏时覆盖为移动网格。 */
    .sidebar:not([style*="display: none"]) {
        display: grid !important;
    }

    .sidebar-header {
        grid-column: 1;
        grid-row: 1;
        padding: 10px 14px;
    }

    .logo {
        min-height: 44px;
        font-size: 0.92rem;
    }

    .logo .icon {
        width: 24px;
        height: 24px;
        padding: 4px;
    }

    .sidebar-footer {
        display: flex;
        grid-column: 2;
        grid-row: 1;
        gap: 7px;
        padding: 10px 14px 10px 0;
        border: 0;
    }

    .btn-theme-toggle,
    .btn-logout {
        width: 44px;
        min-width: 44px;
        padding: 0;
    }

    .theme-text,
    .btn-logout span {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .sidebar-nav {
        grid-column: 1 / -1;
        grid-row: 2;
        padding: 8px 12px 10px;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .sidebar-nav ul {
        display: flex;
        width: max-content;
        gap: 7px;
    }

    .nav-item {
        min-height: 44px;
        flex: 0 0 auto;
        padding: 9px 12px;
        white-space: nowrap;
    }

    .main-content {
        height: auto;
        min-height: calc(100vh - 116px);
        overflow: visible;
    }

    .view {
        min-height: calc(100vh - 116px);
        height: auto;
        overflow: visible;
    }

    .login-view {
        min-height: 100vh;
    }

    .welcome-banner,
    .view-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .view-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .quick-actions-grid,
    .settings-content,
    .dashboard-panels {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 560px) {
    .view {
        padding: 16px 12px 28px;
    }


    .sidebar-nav {
        grid-row: 2;
    }

    .register-mode-toggle,
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .detail-item.full-width {
        grid-column: auto;
    }

    .welcome-time {
        width: 100%;
        justify-content: center;
    }

    .filter-bar {
        align-items: stretch;
    }

    .filter-buttons,
    .source-filter,
    .page-size-selector {
        width: 100%;
    }

    .source-filter select,
    .page-size-selector select {
        flex: 1;
    }

    .email-input-group {
        grid-template-columns: 1fr;
    }

    .batch-preview-header,
    .batch-progress-copy {
        align-items: flex-start;
        flex-direction: column;
    }

    .at-symbol {
        display: none;
    }

    .token-box,
    .token-display-inline {
        align-items: stretch;
        flex-direction: column;
    }

    .result-actions,
    .modal-footer,
    .modal-actions,
    .config-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .result-actions .btn,
    .modal-footer .btn,
    .modal-actions .btn,
    .config-actions .btn {
        width: 100%;
    }

    .modal {
        align-items: center;
        padding: 12px;
    }

    .modal-content,
    .modal-content--compact,
    .modal-content--medium,
    .modal-content--wide,
    .modal-content.modal-large {
        width: calc(100vw - 24px);
        max-height: 88vh;
        max-height: 88dvh;
        border-radius: var(--radius-xl);
    }

    /* 短确认保留并排操作，避免两个按钮纵向堆叠后反而拉高弹窗。 */
    .modal-content--compact .modal-footer {
        flex-direction: row;
    }

    .modal-content--compact .modal-footer .btn {
        flex: 1;
        width: auto;
    }

    .toast-container,
    .ui-toast-region {
        top: auto;
        right: 12px;
        bottom: max(12px, env(safe-area-inset-bottom));
        left: 12px;
        width: auto;
    }
}

@media (forced-colors: active) {
    .nav-item.active,
    .filter-btn.active,
    .status-badge,
    .source-badge {
        border: 1px solid currentColor;
    }
}

@media (prefers-reduced-motion: reduce) {
    .is-spinning {
        animation: none !important;
    }
}

/* 原生导航保持整行点击；单列信息用分隔线而不是卡片再套卡片。 */
.nav-item { width: 100%; text-align: left; background: transparent; }
.sidebar-nav li { min-width: 0; }
.info-cards-grid { grid-template-columns: 1fr; gap: 0; }
.info-card { padding: 14px 0; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; background: transparent; }
.info-card:last-child { border-bottom: 0; }
.info-value { font-size: 14px; }
.quick-action-title { display: block; font-weight: 700; }
.quick-actions-section h2, .system-info-section h2, .security-section h2, .setting-group h2 { font-size: 18px; }
.welcome-content p { font-size: 14px; }
.welcome-time { font: 12px var(--font-mono); }
.mailbox-list-container, .audit-log-container, .blocked-ips-container, .table-container { max-width: 100%; min-width: 0; }
.logo .icon { padding: 0; background: transparent; }
.login-view { overflow-y: auto; }
@media (max-width: 820px) { .nav-item { width: auto; } }

/* 紧凑筛选器仍保持 16px 字号，避免移动设备自动放大表单。 */
.source-filter select, .page-size-selector select { font-size: 16px; }

/* 表格复选框保留原尺寸，标签提供 44px 点击区域。 */
.table-select { display: grid; width: 44px; min-height: 44px; place-items: center; cursor: pointer; }

/* 小屏概览保持两列，提高信息效率；长数值和放大文字允许自然换行。 */
.stat-value { overflow-wrap: anywhere; }
@media (max-width: 560px) {
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
    .stat-card { padding: 14px; gap: 10px; min-height: 94px; }
    .stat-icon { width: 32px; height: 32px; flex-basis: 32px; border-radius: 8px; }
    .stat-icon .icon { width: 18px; height: 18px; }
    .stat-value { font-size: 24px; }
    .stat-label { font-size: 12px; }
}

/* 滚动提示只在窄屏显示，宽屏不增加无用说明。 */
.table-hint { display: none; }
@media (max-width: 820px) { .table-hint { display: block; margin: 0 0 12px; color: var(--text-muted); font-size: 12px; line-height: 1.7; } }

/* 域名设置：沿用现有分区卡片，列表按数据列收敛最小宽度。 */
.domains-table { min-width: 700px; }
.domain-name { font-family: var(--font-mono); font-size: 0.85rem; }
.domain-add-form { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.domain-add-field { flex: 1 1 260px; margin-bottom: 0; }
.domain-add-form .btn { flex: 0 0 auto; }
.domain-add-field textarea { font-family: var(--font-mono); line-height: 1.6; }

/* 批量添加实时计数与超上限提示放在表单内，提交前管理员即可看到结果。 */
.domain-add-count { margin: 7px 0 0; color: var(--text-muted); font-size: 0.78rem; line-height: 1.5; }
.domain-add-limit { margin: 7px 0 0; color: var(--warning); font-size: 0.78rem; line-height: 1.5; font-weight: 700; }

/* 批量操作结果面板常驻到手动关闭，状态色区分成功、部分跳过与整体失败。 */
.domain-result {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    margin-bottom: 20px;
    border: 1px solid color-mix(in srgb, var(--success) 34%, transparent);
    border-radius: var(--radius-md);
    color: var(--success);
    background: var(--success-soft);
}
.domain-result[hidden] { display: none; }
.domain-result.is-warning {
    border-color: color-mix(in srgb, var(--warning) 34%, transparent);
    color: var(--warning);
    background: var(--warning-soft);
}
.domain-result.is-error {
    border-color: color-mix(in srgb, var(--danger) 34%, transparent);
    color: var(--danger);
    background: var(--danger-soft);
}
.domain-result-body { flex: 1 1 auto; min-width: 0; display: grid; gap: 8px; color: var(--text); }
.domain-result-title { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 700; }
.domain-result-title .icon { width: 18px; height: 18px; flex: 0 0 auto; }
.domain-result-subtitle { margin: 0; color: var(--text-muted); font-size: 0.78rem; font-weight: 700; }
.domain-result-list {
    display: grid;
    gap: 6px;
    margin: 0;
    padding: 0 0 0 4px;
    max-height: 220px;
    overflow-y: auto;
    overscroll-behavior: contain;
    list-style: none;
}
.domain-result-list li { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.domain-result-list code { font-family: var(--font-mono); font-size: 0.85rem; word-break: break-all; }
.domain-result-reason { color: var(--text-muted); font-size: 0.78rem; }
.domain-result-close { flex: 0 0 auto; }

/* 批量删除工具条：计数文本与危险操作保持相邻，窄屏自动折行。 */
.domains-batch-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.domains-selected-summary { color: var(--text-muted); font-size: 0.82rem; }
.domain-select-heading { width: 52px; }
.domain-checkbox { cursor: pointer; }

/* 启停开关保持 44px 触控区域，内部轨道只表达状态。 */
.domain-switch-track {
    display: inline-block; position: relative;
    width: 36px; height: 20px;
    border: 1px solid var(--border-strong); border-radius: var(--radius-pill);
    background: var(--surface-strong);
    transition: background var(--ease), border-color var(--ease);
}
.domain-switch-thumb {
    position: absolute; top: 2px; left: 2px;
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--text-muted);
    transition: transform var(--ease), background var(--ease);
}
.domain-switch.is-on .domain-switch-track { border-color: var(--primary); background: var(--primary); }
.domain-switch.is-on .domain-switch-thumb { transform: translateX(16px); background: #ffffff; }
.domain-switch:disabled { cursor: progress; }

@media (max-width: 768px) {
    .domain-add-form { flex-direction: column; align-items: stretch; }
}

/* 匿名访客首开即隐藏后台侧栏，避免脚本就位前的框架闪现与首开重排；一旦脚本写入内联 display（登录/退出），此规则让位于内联样式。 */
html:not(.admin-session) .sidebar:not([style]) {
    display: none !important;
}