/* ==========================================================================
   Knowledge DB Admin - Enterprise Design System & Modern Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. 全局设计令牌 (Design Tokens & Reset)
   -------------------------------------------------------------------------- */
:root {
    --adm-primary: #2563eb;
    --adm-primary-hover: #1d4ed8;
    --adm-primary-light: #eff6ff;
    --adm-bg-surface: #ffffff;
    --adm-bg-subtle: #f8fafc;
    --adm-bg-muted: #f1f5f9;
    --adm-border-color: #cbd5e1;
    --adm-border-light: #e2e8f0;
    --adm-text-main: #0f172a;
    --adm-text-body: #1e293b;
    --adm-text-muted: #64748b;
    --adm-radius-sm: 4px;
    --adm-radius-md: 6px;
    --adm-radius-lg: 8px;
    --adm-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --adm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --adm-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

/* 全局字体平滑与排版 */
body, .main-sidebar, .card, .table, input, select, textarea, button {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: #f1f5f9 !important;
    color: var(--adm-text-body);
}

/* --------------------------------------------------------------------------
   1. 顶部导航栏 (Navbar)
   -------------------------------------------------------------------------- */
#jazzy-navbar,
.app-header.navbar,
.main-header.navbar {
    background-color: #ffffff !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
    box-shadow: var(--adm-shadow-sm) !important;
}

#jazzy-navbar .navbar-nav {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
}

#jazzy-navbar .navbar-nav .nav-link,
.app-header .navbar-nav .nav-link,
.main-header .navbar-nav .nav-link {
    color: var(--adm-text-main) !important;
    font-weight: 600 !important;
    font-size: 0.92rem !important;
    padding: 0.5rem 0.85rem !important;
    white-space: nowrap !important;
    transition: color 0.15s ease-in-out;
}

#jazzy-navbar .navbar-nav .nav-link:hover,
.app-header .navbar-nav .nav-link:hover {
    color: var(--adm-primary) !important;
}

#jazzy-navbar .nav-link i,
.app-header .nav-link i,
.main-header .nav-link i {
    color: var(--adm-text-main) !important;
    font-size: 1.15rem !important;
}

#jazzy-navbar .nav-link:hover i,
.app-header .nav-link:hover i {
    color: var(--adm-primary) !important;
}

#jazzy-navbar .form-control-navbar,
.app-header .form-control-navbar {
    background-color: #f8fafc !important;
    border: 1px solid var(--adm-border-color) !important;
    color: var(--adm-text-main) !important;
    font-weight: 500 !important;
    font-size: 0.88rem !important;
    border-radius: 6px 0 0 6px !important;
    padding: 0.35rem 0.75rem !important;
}

#jazzy-navbar .form-control-navbar::placeholder,
.app-header .form-control-navbar::placeholder {
    color: var(--adm-text-muted) !important;
    opacity: 1 !important;
}

#jazzy-navbar .form-control-navbar:focus,
.app-header .form-control-navbar:focus {
    background-color: #ffffff !important;
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15) !important;
}

#jazzy-navbar .btn-navbar,
.app-header .btn-navbar {
    background-color: #f8fafc !important;
    border: 1px solid var(--adm-border-color) !important;
    border-left: none !important;
    color: var(--adm-text-main) !important;
    border-radius: 0 6px 6px 0 !important;
}

#jazzy-navbar .btn-navbar:hover,
.app-header .btn-navbar:hover {
    background-color: var(--adm-border-light) !important;
    color: var(--adm-primary) !important;
}

#jazzy-usermenu {
    border: 1px solid var(--adm-border-light) !important;
    box-shadow: var(--adm-shadow-lg) !important;
    border-radius: 8px !important;
}

#jazzy-usermenu .dropdown-item {
    color: var(--adm-text-main) !important;
    font-weight: 500 !important;
    padding: 0.5rem 1rem !important;
}

#jazzy-usermenu .dropdown-item:hover {
    background-color: var(--adm-primary-light) !important;
    color: var(--adm-primary) !important;
}

.content-header .breadcrumb-item,
.content-header .breadcrumb-item a {
    color: var(--adm-text-muted) !important;
    font-weight: 500 !important;
}

.content-header .breadcrumb-item.active {
    color: var(--adm-text-main) !important;
    font-weight: 600 !important;
}

/* --------------------------------------------------------------------------
   2. 卡片与折叠面板 (Cards & Fieldset Headers)
   -------------------------------------------------------------------------- */
.card {
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: var(--adm-shadow-sm) !important;
    background-color: #ffffff !important;
    margin-bottom: 1.25rem !important;
}

.card-header {
    background-color: #ffffff !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
    font-weight: 700 !important;
    font-size: 0.98rem !important;
    color: var(--adm-text-main) !important;
    padding: 0.85rem 1.25rem !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header .card-title {
    font-weight: 700 !important;
    font-size: 0.98rem !important;
    color: var(--adm-text-main) !important;
    margin-bottom: 0 !important;
}

/* --------------------------------------------------------------------------
   3. 表单排版与现代化栅格系统 (Form Controls & Grid)
   -------------------------------------------------------------------------- */
.card-body .form-group {
    padding: 12px 18px !important;
    border-bottom: 1px dashed var(--adm-border-light);
    margin-bottom: 0 !important;
}

.card-body .form-group:last-child {
    border-bottom: none !important;
}

/* 字段标签 */
.card-body .form-group label {
    color: var(--adm-text-main) !important;
    font-weight: 600 !important;
    font-size: 0.9rem !important;
    margin-bottom: 6px !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
}

/* 多字段同一行 (fieldBox) 自动平分宽度与弹性撑开 */
.card-body .form-group .row {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: flex-start !important;
    gap: 16px !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.form-group .row > label.col-sm-3,
.form-group .row > label.col-auto {
    flex: 0 0 auto !important;
    width: 140px !important;
    min-width: 120px !important;
    padding-left: 0 !important;
    padding-right: 12px !important;
    padding-top: 6px !important;
}

.form-group .row > .col-auto.fieldBox,
.form-group .row > .col-sm-9.fieldBox,
.form-group .row > .fieldBox {
    flex: 1 1 260px !important;
    max-width: 100% !important;
    min-width: 220px !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

/* 单字段占满整行的情况 */
.form-group .row > .col-sm-9:not(.fieldBox) {
    flex: 1 1 0% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

/* 通用输入框与选择框 */
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group select:not([multiple]) {
    width: 100% !important;
    min-height: 38px !important;
    height: 38px !important;
    padding: 6px 12px !important;
    font-size: 0.9rem !important;
    color: var(--adm-text-main) !important;
    background-color: #ffffff !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out !important;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="date"]:focus,
.form-group select:focus {
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
    outline: none !important;
}

/* 帮助提示文本 */
.help-block {
    color: var(--adm-text-muted) !important;
    font-size: 0.82rem !important;
    margin-top: 5px !important;
    line-height: 1.4 !important;
}

/* --------------------------------------------------------------------------
   4. Select2 / Autocomplete 下拉选框与 Related Widget 图标
   -------------------------------------------------------------------------- */
.related-widget-wrapper {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    width: 100% !important;
    gap: 6px !important;
}

.related-widget-wrapper > .select2,
.related-widget-wrapper > .select2-container,
.related-widget-wrapper > .admin-autocomplete,
.related-widget-wrapper > select {
    flex: 1 1 0% !important;
    width: 100% !important;
    min-width: 180px !important;
    max-width: 100% !important;
}

.select2-container {
    width: 100% !important;
    min-width: 180px !important;
    display: block !important;
}

.select2-container .select2-selection--single {
    height: 38px !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    background-color: #ffffff !important;
    display: flex !important;
    align-items: center !important;
    padding: 0 8px !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--adm-text-main) !important;
    font-size: 0.9rem !important;
    line-height: 36px !important;
    padding-left: 4px !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 36px !important;
    right: 8px !important;
}

.select2-container--default.select2-container--open .select2-selection--single,
.select2-container--default.select2-container--focus .select2-selection--single {
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
}

.select2-dropdown {
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: var(--adm-shadow-lg) !important;
    z-index: 9999 !important;
}

.select2-results__option {
    padding: 8px 12px !important;
    font-size: 0.9rem !important;
    color: var(--adm-text-body) !important;
}

.select2-results__option--highlighted[aria-selected] {
    background-color: var(--adm-primary-light) !important;
    color: var(--adm-primary-hover) !important;
    font-weight: 500 !important;
}

.select2-results__option[aria-selected="true"] {
    background-color: #dbeafe !important;
    color: #1e40af !important;
    font-weight: 600 !important;
}

/* 操作图标小按钮（➕ ✏️ ❌ 👁️） */
.related-widget-wrapper-link {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    border-radius: var(--adm-radius-md) !important;
    background-color: var(--adm-bg-muted) !important;
    border: 1px solid var(--adm-border-color) !important;
    transition: all 0.15s ease !important;
    padding: 0 !important;
    text-decoration: none !important;
}

.related-widget-wrapper-link img {
    width: 15px !important;
    height: 15px !important;
    opacity: 0.8 !important;
    transition: opacity 0.15s ease !important;
}

.related-widget-wrapper-link:hover {
    background-color: #e2e8f0 !important;
    border-color: #94a3b8 !important;
    transform: translateY(-1px);
    box-shadow: var(--adm-shadow-sm);
}

.related-widget-wrapper-link:hover img {
    opacity: 1 !important;
}

.related-widget-wrapper-link.add-related:hover {
    background-color: #dcfce7 !important;
    border-color: #86efac !important;
}

.related-widget-wrapper-link.delete-related:hover {
    background-color: #fee2e2 !important;
    border-color: #fca5a5 !important;
}

.related-widget-wrapper-link.change-related:hover,
.related-widget-wrapper-link.view-related:hover {
    background-color: #e0f2fe !important;
    border-color: #7dd3fc !important;
}

/* --------------------------------------------------------------------------
   5. 多对多穿梭选框 (FilterHorizontal / .selector)
   -------------------------------------------------------------------------- */
.selector {
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
    width: 100% !important;
    max-width: 960px !important;
    gap: 16px !important;
    margin: 8px 0 !important;
}

.selector-available,
.selector-chosen {
    flex: 1 1 0% !important;
    min-width: 260px !important;
    background: var(--adm-bg-subtle) !important;
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    padding: 12px !important;
    box-shadow: var(--adm-shadow-sm) !important;
    display: flex !important;
    flex-direction: column !important;
}

.selector-available h2,
.selector-chosen h2 {
    font-size: 0.92rem !important;
    font-weight: 700 !important;
    color: var(--adm-text-main) !important;
    background: transparent !important;
    padding: 0 0 8px 0 !important;
    margin: 0 0 8px 0 !important;
    border-bottom: 2px solid var(--adm-border-light) !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
}

.selector-available h2::before {
    content: "📋";
    font-size: 14px;
}

.selector-chosen h2::before {
    content: "✅";
    font-size: 14px;
}

.selector-filter {
    margin-bottom: 8px !important;
    padding: 0 !important;
}

.selector-filter input {
    width: 100% !important;
    height: 34px !important;
    padding: 4px 10px !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    font-size: 0.88rem !important;
    background-color: #ffffff !important;
}

.selector-filter input:focus {
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15) !important;
    outline: none !important;
}

.selector select[multiple],
.selector select.filtered {
    width: 100% !important;
    height: 220px !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    background-color: #ffffff !important;
    padding: 6px !important;
    font-size: 0.88rem !important;
    line-height: 1.6 !important;
    color: var(--adm-text-main) !important;
    flex: 1 1 auto !important;
}

.selector select option {
    padding: 5px 8px !important;
    border-radius: 4px !important;
    margin-bottom: 2px !important;
    word-break: break-all !important;
    white-space: normal !important;
}

.selector select option:hover {
    background-color: var(--adm-primary-light) !important;
}

.selector select option:checked {
    background-color: var(--adm-primary) !important;
    color: #ffffff !important;
}

.selector-chooser {
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 0 !important;
    margin: 0 !important;
    list-style: none !important;
}

.selector-chooser li {
    margin: 0 !important;
    padding: 0 !important;
}

.selector-chooser a.selector-add,
.selector-chooser a.selector-remove {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    background-color: #ffffff !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: 50% !important;
    box-shadow: var(--adm-shadow-sm) !important;
    color: var(--adm-text-body) !important;
    font-size: 14px !important;
    text-decoration: none !important;
    transition: all 0.2s ease !important;
}

.selector-chooser a.selector-add:hover {
    background-color: var(--adm-primary) !important;
    border-color: var(--adm-primary-hover) !important;
    color: #ffffff !important;
    transform: translateX(2px) scale(1.05);
    box-shadow: 0 4px 8px rgba(37, 99, 235, 0.25) !important;
}

.selector-chooser a.selector-remove:hover {
    background-color: #ef4444 !important;
    border-color: #dc2626 !important;
    color: #ffffff !important;
    transform: translateX(-2px) scale(1.05);
    box-shadow: 0 4px 8px rgba(239, 68, 68, 0.25) !important;
}

.selector-chooseall,
.selector-clearall {
    display: inline-block !important;
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    color: var(--adm-primary) !important;
    text-decoration: none !important;
    margin-top: 8px !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    background-color: #e0f2fe !important;
    text-align: center !important;
    transition: background-color 0.15s ease !important;
}

.selector-chooseall:hover {
    background-color: #bae6fd !important;
    color: #0369a1 !important;
}

.selector-clearall {
    color: #dc2626 !important;
    background-color: #fee2e2 !important;
}

.selector-clearall:hover {
    background-color: #fca5a5 !important;
    color: #991b1b !important;
}

/* --------------------------------------------------------------------------
   6. 吸底悬浮保存工具栏 (Sticky Save Toolbar)
   -------------------------------------------------------------------------- */
.card-footer.form-group,
.submit-row {
    position: sticky !important;
    bottom: 0 !important;
    z-index: 1020 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border-top: 1px solid var(--adm-border-color) !important;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.08) !important;
    padding: 12px 20px !important;
    margin-top: 20px !important;
    border-radius: 0 0 var(--adm-radius-lg) var(--adm-radius-lg) !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    flex-wrap: wrap !important;
}

.submit-row .btn,
.card-footer .btn {
    height: 38px !important;
    padding: 6px 18px !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    border-radius: var(--adm-radius-md) !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    transition: all 0.15s ease !important;
}

.submit-row .btn:hover,
.card-footer .btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--adm-shadow-md);
}

/* --------------------------------------------------------------------------
   7. 列表数据表格与批量操作 (Changelist & Table)
   -------------------------------------------------------------------------- */
.card-body.table-responsive {
    padding: 0 !important;
    border-radius: 0 0 var(--adm-radius-lg) var(--adm-radius-lg);
    overflow-x: auto;
}

#result_list {
    margin-bottom: 0 !important;
    width: 100% !important;
    border-collapse: separate !important;
    border-spacing: 0 !important;
}

#result_list thead th {
    background-color: var(--adm-bg-muted) !important;
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    font-size: 0.88rem !important;
    border-bottom: 2px solid var(--adm-border-color) !important;
    border-top: none !important;
    padding: 10px 12px !important;
    white-space: nowrap;
    vertical-align: middle;
}

#result_list thead th a {
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    text-decoration: none !important;
}

#result_list thead th.sorted {
    background-color: #e2e8f0 !important;
}

#result_list tbody tr {
    transition: background-color 0.12s ease-in-out;
}

#result_list tbody tr:nth-of-type(even) {
    background-color: var(--adm-bg-subtle);
}

#result_list tbody tr:hover {
    background-color: var(--adm-primary-light) !important;
}

#result_list tbody td {
    padding: 8px 12px !important;
    vertical-align: middle !important;
    border-top: 1px solid var(--adm-border-light) !important;
    font-size: 0.88rem;
    color: var(--adm-text-body);
}

.text-ellipsis-cell {
    max-width: 320px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-block;
    vertical-align: middle;
    color: var(--adm-text-main);
    font-weight: 500;
}

.table-img-thumb {
    height: 44px;
    width: auto;
    max-width: 90px;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid var(--adm-border-light);
    background: #ffffff;
    box-shadow: var(--adm-shadow-sm);
    transition: transform 0.2s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.2s ease;
    cursor: pointer;
}

.table-img-thumb:hover {
    transform: scale(3.2);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    z-index: 9999;
    position: relative;
}

/* 顶部批量操作栏 Actions */
.actions {
    background-color: var(--adm-bg-subtle) !important;
    padding: 10px 14px !important;
    border-radius: var(--adm-radius-lg) !important;
    border: 1px solid var(--adm-border-light) !important;
    margin-bottom: 14px !important;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.actions select {
    min-height: 34px !important;
    height: 34px !important;
    padding: 4px 10px !important;
    font-size: 0.88rem !important;
    border-radius: var(--adm-radius-md) !important;
    border: 1px solid var(--adm-border-color) !important;
    max-width: 300px;
}

.actions .btn {
    height: 34px !important;
    padding: 4px 14px !important;
    font-size: 0.88rem !important;
    font-weight: 600 !important;
    border-radius: var(--adm-radius-md) !important;
}

.actions .action-counter {
    font-size: 0.85rem !important;
    color: var(--adm-text-muted) !important;
    font-weight: 500;
}

/* 分页器 Pagination */
.paginator {
    background-color: #ffffff !important;
    padding: 12px 16px !important;
    border-top: 1px solid var(--adm-border-light) !important;
    font-size: 0.88rem !important;
    color: #475569 !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.paginator a {
    color: var(--adm-primary) !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    padding: 4px 10px;
    border-radius: 4px;
    background-color: var(--adm-bg-muted);
    border: 1px solid var(--adm-border-light);
    transition: all 0.15s ease;
}

.paginator a:hover {
    background-color: #e0f2fe;
    border-color: #7dd3fc;
}

.paginator .this-page {
    font-weight: 700 !important;
    color: var(--adm-text-main) !important;
    padding: 4px 10px;
}

/* --------------------------------------------------------------------------
   8. 文本域代码字体 (LaTeX / Markdown / Formulas)
   -------------------------------------------------------------------------- */
textarea#id_content,
textarea#id_answer,
textarea#id_analysis,
textarea#id_trap_analysis,
textarea#id_core_formulas,
textarea#id_summary_notes,
textarea#id_examiner_style,
textarea#id_custom_content,
textarea#id_custom_answer,
textarea#id_my_mistake_detail,
textarea#id_takeaway_notes,
textarea#id_completed_tasks,
textarea#id_blockers_and_questions,
textarea#id_tomorrow_plan,
textarea#id_options,
textarea#id_sub_questions,
textarea#id_crop_coords {
    font-family: "Fira Code", "JetBrains Mono", "Cascadia Code", Consolas, Monaco, "Courier New", monospace !important;
    font-size: 13.5px !important;
    line-height: 1.65 !important;
    background-color: #fafbfc !important;
    color: var(--adm-text-main) !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    padding: 10px 12px !important;
    transition: border-color 0.2s, box-shadow 0.2s;
}

textarea#id_content:focus,
textarea#id_answer:focus,
textarea#id_analysis:focus,
textarea#id_trap_analysis:focus,
textarea#id_core_formulas:focus {
    background-color: #ffffff !important;
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
    outline: none !important;
}

/* 原题扫描大图预览卡片 */
.scan-preview-wrapper {
    display: inline-block;
    background: var(--adm-bg-subtle);
    border: 1px solid var(--adm-border-light);
    border-radius: var(--adm-radius-lg);
    padding: 12px;
    max-width: 100%;
    box-shadow: var(--adm-shadow-sm);
    margin-bottom: 8px;
}

.scan-preview-img {
    max-width: 100%;
    max-height: 380px;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid var(--adm-border-color);
    background: #ffffff;
}

/* --------------------------------------------------------------------------
   9. 高对比度徽章与标签体系 (Badges & Tags)
   -------------------------------------------------------------------------- */
.badge, .badge-custom, span.badge {
    color: var(--adm-text-main) !important;
    background-color: var(--adm-bg-muted) !important;
    border: 1px solid var(--adm-border-color) !important;
    font-weight: 600 !important;
    letter-spacing: 0.3px;
    border-radius: 5px !important;
    padding: 0.3em 0.65em !important;
    line-height: 1.25 !important;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    vertical-align: middle;
}

.tag-year, span.badge.tag-year {
    background-color: #e0f2fe !important;
    color: #0369a1 !important;
    border: 1px solid #7dd3fc !important;
    font-weight: 700 !important;
    font-size: 11.5px !important;
}

.tag-page, span.badge.tag-page {
    background-color: var(--adm-bg-muted) !important;
    color: #334155 !important;
    border: 1px solid var(--adm-border-color) !important;
    font-weight: 600 !important;
    font-size: 11px !important;
}

.tag-qnum {
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    font-size: 13.5px !important;
}

.tag-subject, span.badge.tag-subject {
    background-color: #f3e8ff !important;
    color: #6b21a8 !important;
    border: 1px solid #d8b4fe !important;
    font-weight: 600 !important;
}

.sub-chapter-text {
    color: var(--adm-text-muted) !important;
    font-weight: 500 !important;
    font-size: 12px !important;
}

.tag-count, span.badge.tag-count {
    background-color: #e0f2fe !important;
    color: #0284c7 !important;
    border: 1px solid #bae6fd !important;
    font-weight: 600 !important;
}

.tag-freq, span.badge.tag-freq {
    background-color: var(--adm-bg-subtle) !important;
    color: #334155 !important;
    border: 1px solid var(--adm-border-color) !important;
    font-weight: 600 !important;
}

.badge-calc, span.badge.badge-calc {
    background-color: #dbeafe !important;
    color: #1e40af !important;
    border: 1px solid #93c5fd !important;
    font-weight: 700 !important;
}

.badge-choice, span.badge.badge-choice {
    background-color: #fef3c7 !important;
    color: #92400e !important;
    border: 1px solid #fde68a !important;
    font-weight: 700 !important;
}

.badge-fill, span.badge.badge-fill {
    background-color: #fae8ff !important;
    color: #86198f !important;
    border: 1px solid #f5d0fe !important;
    font-weight: 700 !important;
}

.badge-proof, span.badge.badge-proof {
    background-color: #f0fdf4 !important;
    color: #166534 !important;
    border: 1px solid #bbf7d0 !important;
    font-weight: 700 !important;
}

.badge-judge, span.badge.badge-judge, span.badge-judge {
    background-color: #dcfce7 !important;
    color: #15803d !important;
    border: 1px solid #86efac !important;
    font-weight: 700 !important;
}

.badge-short, span.badge.badge-short {
    background-color: var(--adm-bg-muted) !important;
    color: #1e293b !important;
    border: 1px solid var(--adm-border-color) !important;
    font-weight: 700 !important;
}

.tag-crosspage {
    background-color: #ffedd5 !important;
    color: #c2410c !important;
    border: 1px solid #fdba74 !important;
    font-weight: 700 !important;
    font-size: 11px !important;
}

.tag-truncated {
    background-color: #fee2e2 !important;
    color: #b91c1c !important;
    border: 1px solid #fca5a5 !important;
    font-weight: 700 !important;
    font-size: 11px !important;
}

.badge-reason-concept { background-color: #fee2e2 !important; color: #991b1b !important; border: 1px solid #fca5a5 !important; }
.badge-reason-calc { background-color: #ffedd5 !important; color: #9a3412 !important; border: 1px solid #fdba74 !important; }
.badge-reason-trap { background-color: #fef2f2 !important; color: #b91c1c !important; border: 1px solid #f87171 !important; }
.badge-reason-method { background-color: #e0f2fe !important; color: #075985 !important; border: 1px solid #7dd3fc !important; }
.badge-reason-reading { background-color: var(--adm-bg-muted) !important; color: #334155 !important; border: 1px solid var(--adm-border-color) !important; }
.badge-reason-time { background-color: #fefce8 !important; color: #854d0e !important; border: 1px solid #fde047 !important; }

.badge-mastery-0 { background-color: #fee2e2 !important; color: #991b1b !important; border: 1px solid #fca5a5 !important; }
.badge-mastery-1 { background-color: #fef3c7 !important; color: #92400e !important; border: 1px solid #fcd34d !important; }
.badge-mastery-2 { background-color: #dbeafe !important; color: #1e40af !important; border: 1px solid #93c5fd !important; }
.badge-mastery-3 { background-color: #dcfce7 !important; color: #166534 !important; border: 1px solid #86efac !important; }

.badge-mood-excellent { background-color: #fee2e2 !important; color: #b91c1c !important; border: 1px solid #fca5a5 !important; }
.badge-mood-focused { background-color: #fef3c7 !important; color: #b45309 !important; border: 1px solid #fcd34d !important; }
.badge-mood-steady { background-color: #e0f2fe !important; color: #0369a1 !important; border: 1px solid #7dd3fc !important; }
.badge-mood-struggling { background-color: var(--adm-bg-muted) !important; color: var(--adm-text-muted) !important; border: 1px solid var(--adm-border-color) !important; }
.badge-mood-tired { background-color: #f5f3ff !important; color: #6d28d9 !important; border: 1px solid #ddd6fe !important; }

.badge-spark-intuition { background-color: #fef9c3 !important; color: #854d0e !important; border: 1px solid #fde047 !important; }
.badge-spark-analogy { background-color: #e0e7ff !important; color: #3730a3 !important; border: 1px solid #a5b4fc !important; }
.badge-spark-mnemonic { background-color: #fae8ff !important; color: #86198f !important; border: 1px solid #f5d0fe !important; }
.badge-spark-trick { background-color: #ffedd5 !important; color: #9a3412 !important; border: 1px solid #fdba74 !important; }
.badge-spark-eureka { background-color: #dcfce7 !important; color: #15803d !important; border: 1px solid #86efac !important; }
.badge-spark-question { background-color: var(--adm-bg-muted) !important; color: #334155 !important; border: 1px solid var(--adm-border-color) !important; }

.badge-status-draft { background-color: #fef3c7 !important; color: #92400e !important; border: 1px solid #fde68a !important; }
.badge-status-verified { background-color: #dcfce7 !important; color: #166534 !important; border: 1px solid #86efac !important; }
.badge-status-crystallized { background-color: #e0f2fe !important; color: #0369a1 !important; border: 1px solid #7dd3fc !important; font-weight: 700 !important; }

.difficulty-stars { color: #d97706; font-weight: bold; letter-spacing: 1px; }
.difficulty-stars-empty { color: var(--adm-border-color); }

/* --------------------------------------------------------------------------
   10. Inline 内联子表单统一美化 (StackedInline & TabularInline)
   -------------------------------------------------------------------------- */
/* 内联分组容器 */
.inline-group {
    margin-top: 20px !important;
    margin-bottom: 20px !important;
}

/* 内联区域标题栏 (如 "🔗 关联的跨页接续片段") */
.inline-group h2,
.inline-group .inline-heading {
    font-size: 0.95rem !important;
    font-weight: 700 !important;
    color: var(--adm-text-main) !important;
    background-color: var(--adm-bg-muted) !important;
    padding: 10px 16px !important;
    margin: 0 !important;
    border: 1px solid var(--adm-border-light) !important;
    border-bottom: 2px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-lg) var(--adm-radius-lg) 0 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
}

/* 每条内联记录卡片 */
.inline-related {
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    margin-bottom: 12px !important;
    background-color: #ffffff !important;
    box-shadow: var(--adm-shadow-sm) !important;
    overflow: hidden !important;
}

.inline-related:last-child {
    margin-bottom: 0 !important;
}

/* 内联记录标题栏 (StackedInline 的子卡片头) */
.inline-related h3 {
    background-color: var(--adm-bg-subtle) !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
    padding: 8px 14px !important;
    margin: 0 !important;
    font-size: 0.88rem !important;
    font-weight: 600 !important;
    color: var(--adm-text-main) !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
}

.inline-related h3 .inline_label {
    font-weight: 700 !important;
    color: var(--adm-primary) !important;
}

/* 内联记录内容区 */
.inline-related fieldset {
    padding: 12px 16px !important;
    margin: 0 !important;
    border: none !important;
}

.inline-related .form-row,
.inline-related .form-group {
    padding: 8px 0 !important;
    border-bottom: 1px dashed var(--adm-border-light) !important;
    margin-bottom: 0 !important;
}

.inline-related .form-row:last-child,
.inline-related .form-group:last-child {
    border-bottom: none !important;
}

/* 内联删除 checkbox 行 */
.inline-deletelink,
.inline-related .delete {
    color: #dc2626 !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.inline-deletelink:hover,
.inline-related .delete:hover {
    opacity: 1;
    color: #b91c1c !important;
}

/* "新增另一条" 按钮行 */
.inline-group .add-row,
.inline-group .add-row a {
    padding: 10px 16px !important;
    font-size: 0.88rem !important;
    font-weight: 600 !important;
    color: var(--adm-primary) !important;
}

.inline-group .add-row a:hover {
    color: var(--adm-primary-hover) !important;
    text-decoration: underline !important;
}

/* --------------------------------------------------------------------------
   11. TabularInline 表格美化 (SubChapterInline 等)
   -------------------------------------------------------------------------- */
.tabular .module,
.inline-group .tabular {
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    overflow: hidden !important;
    box-shadow: var(--adm-shadow-sm) !important;
}

.tabular .module table,
.inline-group .tabular table {
    width: 100% !important;
    border-collapse: separate !important;
    border-spacing: 0 !important;
    margin-bottom: 0 !important;
}

.tabular .module table thead th,
.inline-group .tabular table thead th {
    background-color: var(--adm-bg-muted) !important;
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    font-size: 0.86rem !important;
    padding: 8px 12px !important;
    border-bottom: 2px solid var(--adm-border-color) !important;
    border-top: none !important;
    white-space: nowrap !important;
    text-align: left !important;
}

.tabular .module table tbody tr {
    transition: background-color 0.12s ease-in-out;
}

.tabular .module table tbody tr:nth-of-type(even) {
    background-color: var(--adm-bg-subtle) !important;
}

.tabular .module table tbody tr:hover {
    background-color: var(--adm-primary-light) !important;
}

.tabular .module table tbody td {
    padding: 8px 12px !important;
    vertical-align: middle !important;
    border-top: 1px solid var(--adm-border-light) !important;
    font-size: 0.88rem !important;
    color: var(--adm-text-body) !important;
}

.tabular .module table tbody td input,
.tabular .module table tbody td select {
    min-height: 34px !important;
    height: 34px !important;
    padding: 4px 8px !important;
    font-size: 0.86rem !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-sm) !important;
}

/* 删除列 (Tabular) */
.tabular .module table .delete input[type="checkbox"] {
    margin: 0 auto !important;
    display: block !important;
}

/* --------------------------------------------------------------------------
   12. Textarea 全宽与统一高度
   -------------------------------------------------------------------------- */
textarea {
    width: 100% !important;
    min-height: 120px !important;
    resize: vertical !important;
    font-size: 0.9rem !important;
    line-height: 1.6 !important;
    padding: 10px 12px !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    background-color: #fafbfc !important;
    color: var(--adm-text-main) !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease !important;
}

textarea:focus {
    background-color: #ffffff !important;
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
    outline: none !important;
}

/* 小文本域（如 crop_coords、cross_page_notes）不需要太高 */
textarea[rows="2"],
textarea[rows="3"] {
    min-height: 60px !important;
}

/* --------------------------------------------------------------------------
   13. Checkbox / Boolean 字段对齐优化
   -------------------------------------------------------------------------- */
input[type="checkbox"] {
    width: 18px !important;
    height: 18px !important;
    accent-color: var(--adm-primary) !important;
    border-radius: var(--adm-radius-sm) !important;
    cursor: pointer !important;
    vertical-align: middle !important;
    margin-right: 4px !important;
    position: relative !important;
    top: -1px !important;
}

/* 同行多个 checkbox 字段 (如 is_starred + is_resolved) */
.form-group .fieldBox input[type="checkbox"] + label,
.form-group .checkbox label,
.form-row label.vCheckboxLabel {
    font-weight: 500 !important;
    color: var(--adm-text-body) !important;
    cursor: pointer !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
    vertical-align: middle !important;
}

/* --------------------------------------------------------------------------
   14. Dashboard 首页模块卡片化
   -------------------------------------------------------------------------- */
/* 首页各模块容器 */
.dashboard .module,
#content-main .module,
.app-list .module {
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: var(--adm-shadow-sm) !important;
    background-color: #ffffff !important;
    margin-bottom: 16px !important;
    overflow: hidden !important;
}

/* 模块标题 */
.dashboard .module caption,
.dashboard .module h2,
#recent-actions-module h2,
.app-list .module h2 {
    background-color: var(--adm-bg-muted) !important;
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    font-size: 0.95rem !important;
    padding: 10px 16px !important;
    margin: 0 !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
}

/* 最近操作列表 */
#recent-actions-module li {
    padding: 8px 16px !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
    font-size: 0.88rem !important;
    color: var(--adm-text-body) !important;
    transition: background-color 0.12s ease;
}

#recent-actions-module li:last-child {
    border-bottom: none !important;
}

#recent-actions-module li:hover {
    background-color: var(--adm-primary-light) !important;
}

#recent-actions-module li a {
    color: var(--adm-primary) !important;
    font-weight: 600 !important;
    text-decoration: none !important;
}

#recent-actions-module li a:hover {
    text-decoration: underline !important;
}

/* 首页应用列表表格 */
.dashboard table {
    width: 100% !important;
}

.dashboard table th {
    background-color: var(--adm-bg-muted) !important;
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    padding: 8px 16px !important;
    font-size: 0.88rem !important;
    border-bottom: 1px solid var(--adm-border-color) !important;
}

.dashboard table td {
    padding: 8px 16px !important;
    border-bottom: 1px solid var(--adm-border-light) !important;
    font-size: 0.88rem !important;
    color: var(--adm-text-body) !important;
}

.dashboard table td a {
    color: var(--adm-primary) !important;
    font-weight: 500 !important;
}

.dashboard table tr:hover td {
    background-color: var(--adm-primary-light) !important;
}

/* --------------------------------------------------------------------------
   15. 右侧筛选侧栏现代化 (Changelist Filter)
   -------------------------------------------------------------------------- */
#changelist-filter {
    background-color: #ffffff !important;
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: var(--adm-shadow-sm) !important;
    padding: 0 !important;
    overflow: hidden !important;
}

#changelist-filter h2 {
    background-color: var(--adm-bg-muted) !important;
    color: var(--adm-text-main) !important;
    font-weight: 700 !important;
    font-size: 0.92rem !important;
    padding: 10px 14px !important;
    margin: 0 !important;
    border-bottom: 1px solid var(--adm-border-color) !important;
}

#changelist-filter h3 {
    color: var(--adm-text-main) !important;
    font-weight: 600 !important;
    font-size: 0.86rem !important;
    padding: 10px 14px 4px !important;
    margin: 0 !important;
    border-top: 1px solid var(--adm-border-light) !important;
    background: transparent !important;
}

#changelist-filter h3:first-of-type {
    border-top: none !important;
}

#changelist-filter ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 0 4px 0 !important;
}

#changelist-filter ul li {
    margin: 0 !important;
    padding: 0 !important;
}

#changelist-filter ul li a {
    display: block !important;
    padding: 5px 14px 5px 20px !important;
    font-size: 0.84rem !important;
    color: var(--adm-text-body) !important;
    text-decoration: none !important;
    border-left: 3px solid transparent !important;
    transition: all 0.12s ease !important;
    font-weight: 400 !important;
}

#changelist-filter ul li a:hover {
    background-color: var(--adm-primary-light) !important;
    color: var(--adm-primary) !important;
    border-left-color: var(--adm-primary) !important;
    font-weight: 500 !important;
}

#changelist-filter ul li.selected a {
    background-color: var(--adm-primary-light) !important;
    color: var(--adm-primary) !important;
    font-weight: 700 !important;
    border-left-color: var(--adm-primary) !important;
}

/* --------------------------------------------------------------------------
   16. 消息提示条现代化 (Messagelist)
   -------------------------------------------------------------------------- */
.messagelist {
    padding: 0 !important;
    margin: 0 0 16px 0 !important;
    list-style: none !important;
}

.messagelist li {
    padding: 12px 18px !important;
    margin-bottom: 8px !important;
    border-radius: var(--adm-radius-lg) !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    border: 1px solid transparent !important;
}

.messagelist li.success {
    background-color: #f0fdf4 !important;
    color: #166534 !important;
    border-color: #bbf7d0 !important;
}

.messagelist li.success::before {
    content: "✅" !important;
    font-size: 16px !important;
}

.messagelist li.warning {
    background-color: #fffbeb !important;
    color: #92400e !important;
    border-color: #fde68a !important;
}

.messagelist li.warning::before {
    content: "⚠️" !important;
    font-size: 16px !important;
}

.messagelist li.error {
    background-color: #fef2f2 !important;
    color: #991b1b !important;
    border-color: #fca5a5 !important;
}

.messagelist li.error::before {
    content: "❌" !important;
    font-size: 16px !important;
}

.messagelist li.info {
    background-color: #eff6ff !important;
    color: #1e40af !important;
    border-color: #93c5fd !important;
}

.messagelist li.info::before {
    content: "ℹ️" !important;
    font-size: 16px !important;
}

/* --------------------------------------------------------------------------
   17. 删除确认页现代化美化 (Delete Confirmation Page)
   -------------------------------------------------------------------------- */
body.delete-confirmation {
    max-width: 100% !important;
    width: 100% !important;
}

body.delete-confirmation .content-wrapper {
    padding-top: 12px !important;
}

body.delete-confirmation .card {
    max-width: 1100px !important;
    margin: 0 auto 24px auto !important;
    border: 1px solid #fecaca !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.08) !important;
    overflow: hidden !important;
}

body.delete-confirmation .card-header {
    background: linear-gradient(135deg, #fff5f5 0%, #fee2e2 100%) !important;
    border-bottom: 2px solid #fca5a5 !important;
    padding: 14px 20px !important;
}

body.delete-confirmation .card-header .card-title {
    color: #991b1b !important;
    font-size: 1.05rem !important;
    font-weight: 700 !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
}

body.delete-confirmation .card-header .card-title::before {
    content: "⚠️";
    font-size: 1.1rem;
}

body.delete-confirmation .card-body {
    padding: 24px 28px !important;
}

body.delete-confirmation #content-main > p {
    font-size: 0.98rem !important;
    font-weight: 600 !important;
    color: #1e293b !important;
    background-color: #fff1f2 !important;
    border-left: 4px solid #ef4444 !important;
    padding: 12px 16px !important;
    border-radius: 4px 8px 8px 4px !important;
    margin-bottom: 20px !important;
    line-height: 1.6 !important;
}

body.delete-confirmation h4 {
    font-size: 0.95rem !important;
    font-weight: 700 !important;
    color: var(--adm-text-main) !important;
    margin-bottom: 12px !important;
    padding-bottom: 6px !important;
    border-bottom: 2px solid var(--adm-border-light) !important;
}

/* 待删除对象列表层级树 */
body.delete-confirmation ol {
    padding-left: 20px !important;
    margin: 0 0 16px 0 !important;
}

body.delete-confirmation ol li {
    padding: 6px 0 !important;
    font-size: 0.92rem !important;
    color: var(--adm-text-body) !important;
    line-height: 1.5 !important;
}

body.delete-confirmation ol li a {
    color: var(--adm-primary) !important;
    font-weight: 600 !important;
    text-decoration: underline !important;
}

body.delete-confirmation ol ul {
    padding-left: 20px !important;
    margin: 6px 0 !important;
    list-style-type: circle !important;
}

body.delete-confirmation ol ul li {
    padding: 3px 0 !important;
    color: var(--adm-text-muted) !important;
    font-size: 0.88rem !important;
}

/* 右侧概览统计表 */
body.delete-confirmation table.table {
    border: 1px solid var(--adm-border-light) !important;
    border-radius: var(--adm-radius-md) !important;
    overflow: hidden !important;
    margin-bottom: 18px !important;
    background-color: #ffffff !important;
}

body.delete-confirmation table.table td {
    padding: 8px 12px !important;
    font-size: 0.88rem !important;
    vertical-align: middle !important;
    border-top: 1px solid var(--adm-border-light) !important;
}

body.delete-confirmation table.table td:first-child {
    font-weight: 600 !important;
    color: var(--adm-text-main) !important;
}

body.delete-confirmation table.table td:last-child {
    font-weight: 700 !important;
    text-align: right !important;
    color: #dc2626 !important;
}

/* 确认与取消操作按钮栏 */
body.delete-confirmation .form-group {
    padding: 0 !important;
    border-bottom: none !important;
    margin-bottom: 10px !important;
}

body.delete-confirmation input[type="submit"].btn-danger,
body.delete-confirmation .btn-danger:not(.cancel-link) {
    background-color: #dc2626 !important;
    border-color: #b91c1c !important;
    color: #ffffff !important;
    font-weight: 700 !important;
    font-size: 0.95rem !important;
    height: 42px !important;
    min-height: 42px !important;
    border-radius: var(--adm-radius-md) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    white-space: nowrap !important;
    box-shadow: 0 2px 4px rgba(220, 38, 38, 0.2) !important;
    transition: all 0.15s ease !important;
    cursor: pointer !important;
    width: 100% !important;
}

body.delete-confirmation input[type="submit"].btn-danger:hover {
    background-color: #b91c1c !important;
    border-color: #991b1b !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.3) !important;
}

body.delete-confirmation .cancel-link {
    background-color: #f1f5f9 !important;
    border: 1px solid var(--adm-border-color) !important;
    color: var(--adm-text-body) !important;
    font-weight: 600 !important;
    font-size: 0.92rem !important;
    height: 38px !important;
    min-height: 38px !important;
    border-radius: var(--adm-radius-md) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    transition: all 0.15s ease !important;
    width: 100% !important;
}

body.delete-confirmation .cancel-link:hover {
    background-color: #e2e8f0 !important;
    color: var(--adm-text-main) !important;
    border-color: #94a3b8 !important;
}

/* --------------------------------------------------------------------------
   18. 登录页美化
   -------------------------------------------------------------------------- */
body.login {
    background: linear-gradient(135deg, #e0e7ff 0%, #f0f4ff 50%, #e0f2fe 100%) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: 100vh !important;
}

body.login #container {
    width: 100% !important;
    max-width: 440px !important;
    margin: 0 auto !important;
}

body.login #header {
    background: transparent !important;
    border: none !important;
    padding: 0 0 16px 0 !important;
    text-align: center !important;
}

body.login #header h1,
body.login #header #site-name {
    color: var(--adm-text-main) !important;
    font-weight: 800 !important;
    font-size: 1.4rem !important;
}

body.login #content-main {
    background-color: #ffffff !important;
    border: 1px solid var(--adm-border-light) !important;
    border-radius: 12px !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04) !important;
    padding: 32px !important;
}

body.login #content-main .submit-row {
    position: static !important;
    box-shadow: none !important;
    background: transparent !important;
    border-top: none !important;
    padding: 12px 0 0 0 !important;
    margin-top: 8px !important;
    justify-content: center !important;
}

body.login .submit-row input[type="submit"] {
    width: 100% !important;
    height: 42px !important;
    font-size: 1rem !important;
    font-weight: 700 !important;
    border-radius: var(--adm-radius-md) !important;
    background-color: var(--adm-primary) !important;
    border: none !important;
    color: #ffffff !important;
    cursor: pointer !important;
    transition: background-color 0.15s ease, transform 0.1s ease !important;
}

body.login .submit-row input[type="submit"]:hover {
    background-color: var(--adm-primary-hover) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--adm-shadow-md) !important;
}

body.login .form-row {
    margin-bottom: 16px !important;
    padding: 0 !important;
    border-bottom: none !important;
}

body.login .form-row label {
    font-weight: 600 !important;
    color: var(--adm-text-main) !important;
    margin-bottom: 6px !important;
    display: block !important;
    font-size: 0.9rem !important;
}

body.login .form-row input[type="text"],
body.login .form-row input[type="password"] {
    width: 100% !important;
    height: 42px !important;
    padding: 8px 14px !important;
    font-size: 0.95rem !important;
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-md) !important;
    transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}

body.login .form-row input:focus {
    border-color: var(--adm-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
    outline: none !important;
}

/* --------------------------------------------------------------------------
   19. 内容区顶部间距修复 (防止被固定 Navbar 遮挡)
   -------------------------------------------------------------------------- */
.content-wrapper {
    padding-top: 8px !important;
}

/* 面包屑导航下方留白 */
.content-header {
    padding: 8px 16px !important;
    margin-bottom: 0 !important;
}

/* --------------------------------------------------------------------------
   20. 列表表格列宽约束 (防止过宽/过窄)
   -------------------------------------------------------------------------- */
/* ID 列、排序列、星标列等窄列约束 */
#result_list thead th:first-child,
#result_list tbody td:first-child {
    width: 1% !important;
    white-space: nowrap !important;
    text-align: center !important;
}

/* 操作复选框列 */
#result_list thead th.action-checkbox-column,
#result_list tbody td .action-checkbox {
    width: 1% !important;
    text-align: center !important;
    padding: 8px !important;
}

/* 缩略图列固定窄宽 */
#result_list tbody td img.table-img-thumb {
    display: block !important;
}

/* --------------------------------------------------------------------------
   21. 只读字段展示优化 (readonly_fields 预览卡片)
   -------------------------------------------------------------------------- */
.readonly,
.form-group .readonly {
    padding: 8px 0 !important;
    color: var(--adm-text-body) !important;
    font-size: 0.9rem !important;
}

/* --------------------------------------------------------------------------
   22. 表单页面标题栏微调
   -------------------------------------------------------------------------- */
.content-header h1 {
    font-size: 1.2rem !important;
    font-weight: 700 !important;
    color: var(--adm-text-main) !important;
}

/* --------------------------------------------------------------------------
   23. 日历与时间选择器控件优化
   -------------------------------------------------------------------------- */
.datetimeshortcuts {
    white-space: nowrap !important;
}

.datetimeshortcuts a {
    color: var(--adm-primary) !important;
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    margin-left: 6px !important;
}

.datetimeshortcuts a:hover {
    color: var(--adm-primary-hover) !important;
    text-decoration: underline !important;
}

/* 日历弹出面板 */
.calendarbox,
.clockbox {
    border: 1px solid var(--adm-border-color) !important;
    border-radius: var(--adm-radius-lg) !important;
    box-shadow: var(--adm-shadow-lg) !important;
    background: #ffffff !important;
    z-index: 9999 !important;
}

/* --------------------------------------------------------------------------
   24. 杂项微调 (Miscellaneous Polish)
   -------------------------------------------------------------------------- */
/* help text 链接 */
.help-block a,
span.helptext a {
    color: var(--adm-primary) !important;
    font-weight: 600 !important;
}

/* 空状态提示 */
.empty-form,
p.paginator + p,
.sidebar-empty-msg {
    color: var(--adm-text-muted) !important;
    font-size: 0.88rem !important;
    font-style: italic !important;
    padding: 10px 14px !important;
}

/* file input 美化 */
input[type="file"] {
    font-size: 0.88rem !important;
    color: var(--adm-text-body) !important;
    padding: 6px 0 !important;
}

/* "当前文件" 提示文字 */
.file-upload .currently,
.clearable-file-input .file-upload {
    font-size: 0.84rem !important;
    color: var(--adm-text-muted) !important;
    margin-bottom: 6px !important;
}

.file-upload .currently a {
    color: var(--adm-primary) !important;
    font-weight: 500 !important;
}

/* 错误字段高亮 */
.form-group.errors,
.form-row.errors {
    border-left: 3px solid #ef4444 !important;
    background-color: #fef2f2 !important;
    border-radius: var(--adm-radius-md) !important;
}

.form-group .errorlist,
.form-row .errorlist {
    color: #dc2626 !important;
    font-size: 0.84rem !important;
    font-weight: 600 !important;
    margin: 4px 0 0 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.form-group .errorlist li::before {
    content: "⚠ " !important;
}

/* ==========================================================================
   21. LaTeX 公式实时预览与考卷排版仿真引擎 (LaTeX & MathJax Enhanced Styles)
   ========================================================================== */

/* 挂载在各 Textarea 下方的实时预览卡片 */
.latex-live-preview-card {
    margin-top: 8px;
    margin-bottom: 12px;
    border: 1px solid #cbd5e1;
    border-radius: var(--adm-radius-lg);
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.2s ease;
}

.latex-live-preview-card:hover {
    border-color: #94a3b8;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
}

.latex-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 12px;
    background-color: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.82rem;
    color: #475569;
}

.latex-preview-title {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    color: #1e293b;
}

.latex-preview-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.latex-render-status {
    font-size: 11px !important;
    padding: 2px 7px !important;
    font-weight: 500 !important;
    border-radius: 10px !important;
    background-color: #e0f2fe !important;
    color: #0369a1 !important;
    border: 1px solid #bae6fd !important;
}

.latex-render-status.rendering {
    background-color: #fef3c7 !important;
    color: #92400e !important;
    border-color: #fde68a !important;
}

.toggle-preview-btn {
    background: transparent;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 11px;
    color: #64748b;
    cursor: pointer;
    transition: all 0.15s;
}

.toggle-preview-btn:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.latex-preview-body {
    padding: 12px 16px;
    font-size: 0.93rem;
    line-height: 1.7;
    color: #1e293b;
    background-color: #fafbfd;
    min-height: 42px;
    overflow-x: auto;
    word-break: break-word;
}

.latex-preview-body.collapsed {
    display: none;
}

.latex-preview-empty {
    color: #94a3b8;
    font-size: 0.85rem;
    font-style: italic;
}

/* 考卷级全题排版仿真卡片 */
.exam-full-preview-card {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-left: 4px solid var(--adm-primary);
    border-radius: var(--adm-radius-lg);
    padding: 16px 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
}

.exam-full-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 10px;
    margin-bottom: 12px;
    border-bottom: 1px solid #e2e8f0;
}

.exam-full-preview-title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 8px;
}

.exam-content-body {
    font-size: 0.98rem;
    line-height: 1.8;
    color: #1e293b;
    margin-bottom: 14px;
}

.exam-continuation-body {
    margin-top: 10px;
    padding: 10px 14px;
    background-color: #fffbeb;
    border: 1px dashed #f59e0b;
    border-radius: 6px;
}

/* 选项卡片网格系统 (ABCD) */
.options-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px;
    margin-top: 10px;
    margin-bottom: 12px;
}

.option-preview-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 9px 12px;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.92rem;
    line-height: 1.5;
    transition: all 0.15s ease;
}

.option-preview-item:hover {
    background-color: #f1f5f9;
    border-color: #cbd5e1;
}

.option-key-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background: #1e293b;
    color: #ffffff !important;
    border-radius: 50%;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
}

.option-val-text {
    flex-grow: 1;
    word-break: break-word;
}

/* 大题小问拆解列表 */
.sub-questions-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sub-question-item {
    padding: 10px 14px;
    background-color: #f1f5f9;
    border-left: 3px solid #64748b;
    border-radius: 4px;
    font-size: 0.92rem;
    line-height: 1.6;
}

/* 参考答案与深度解析卡片 */
.solution-full-card {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-left: 4px solid #10b981;
    border-radius: var(--adm-radius-lg);
    padding: 16px 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
}

.solution-answer-block {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: #065f46;
}

.solution-analysis-block {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 12px;
    font-size: 0.93rem;
    line-height: 1.75;
    color: #1e293b;
}

.solution-trap-block {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 0.92rem;
    color: #991b1b;
}

/* 列表页 (Change List) LaTeX 公式单元格 */
.table-latex-cell {
    max-width: 440px;
    display: inline-block;
    vertical-align: middle;
    line-height: 1.5;
    color: var(--adm-text-main);
    word-break: break-word;
    font-size: 0.9rem;
}

/* MathJax 渲染元素微调，防止行高塌陷或上下裁切 */
mjx-container {
    margin: 2px 1px !important;
    outline: none !important;
    display: inline-block !important;
    vertical-align: -0.15em !important;
}

mjx-container[display="true"] {
    display: block !important;
    margin: 10px 0 !important;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 4px 0;
    text-align: center;
}

mjx-container svg {
    max-width: 100%;
}