html,
body {
    min-height: 100%;
}

body {
    background: #f4f6f8;
    color: #1f2937;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    background: linear-gradient(135deg, #eef5f1 0%, #f7f8fb 45%, #eef2f7 100%);
    position: relative;
}

.admin-login-language {
    position: absolute;
    top: 20px;
    right: 24px;
    color: #0f766e;
    font-weight: 600;
}

.admin-login-language:hover {
    color: #16a085;
}

.admin-login-panel {
    width: min(420px, 100%);
    padding: 34px 32px 30px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(31, 41, 55, 0.12);
}

.admin-login-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.admin-login-logo {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    padding: 0;
    background: #f8fafc;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
}

.admin-brand-logo {
    display: block;
    width: 100%;
    height: 100%;
}

.admin-login-brand h1 {
    margin: 0 0 4px;
    font-size: 22px;
    font-weight: 700;
}

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

.admin-login-panel .layui-form-label {
    width: 48px;
    padding-left: 0;
}

.admin-login-panel .layui-input-block {
    margin-left: 78px;
}

.admin-login-btn {
    height: 42px;
    margin-top: 8px;
    background: #16a085;
}

.admin-login-alert {
    margin-bottom: 18px;
    padding: 10px 12px;
    border: 1px solid #f3c3c3;
    border-radius: 6px;
    color: #b42318;
    background: #fff5f5;
}

.admin-shell .admin-header {
    background: #202938;
}

.admin-logo {
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 12px;
    box-sizing: border-box;
    color: #fff !important;
    font-weight: 700;
    line-height: 1.2 !important;
    background: #16a085 !important;
    box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.12);
}

.admin-header-logo {
    width: 26px;
    height: 26px;
    flex: 0 0 26px;
}

.admin-logo span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-logout {
    height: 60px;
    padding: 0 18px;
    border: 0;
    color: rgba(255, 255, 255, 0.85);
    background: transparent;
    cursor: pointer;
}

.admin-logout:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.admin-language-switch {
    font-weight: 600;
}

.admin-dashboard-link {
    font-weight: 600;
}

.admin-shell .layui-side,
.admin-shell .layui-nav-tree {
    background: #1f2937 !important;
}

.admin-shell .layui-nav-tree .layui-nav-item > a {
    display: flex;
    align-items: center;
    color: #e5edf5;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.03);
}

.admin-shell .layui-nav-tree .layui-nav-item > a:hover,
.admin-shell .layui-nav-tree .layui-nav-itemed > a {
    color: #fff;
    background: #202938;
}

.admin-shell .layui-nav-tree .layui-nav-child {
    background: #273344 !important;
}

.admin-shell .layui-nav-tree .layui-nav-child dd a {
    display: flex;
    align-items: center;
    padding-left: 34px;
    color: #cbd5e1;
    font-size: 13px;
    font-weight: 400;
}

.admin-menu-icon {
    width: 18px;
    margin-right: 10px;
    flex: 0 0 18px;
    text-align: center;
    line-height: 1;
    font-size: 14px;
}

.admin-shell .layui-nav-tree .layui-nav-item > a .admin-menu-icon {
    color: inherit;
    opacity: 0.95;
}

.admin-shell .layui-nav-tree .layui-nav-child dd a .admin-menu-icon {
    color: inherit;
    opacity: 0.88;
    font-size: 13px;
}

.admin-menu-text {
    min-width: 0;
    flex: 1 1 auto;
}

.admin-shell .layui-nav-tree .layui-nav-child dd a:hover {
    color: #fff;
    background: rgba(22, 160, 133, 0.18);
}

.admin-shell .layui-nav-tree .layui-nav-child dd.layui-this,
.admin-shell .layui-nav-tree .layui-nav-child dd.layui-this a {
    color: #fff;
    background: #16a085 !important;
}

.admin-body {
    bottom: 0;
    overflow: auto;
}

.admin-frame-body {
    min-height: 100vh;
}

.admin-page {
    padding: 22px;
}

.admin-page-title {
    margin-bottom: 18px;
}

.admin-page-title h1 {
    margin: 0 0 6px;
    font-size: 24px;
    font-weight: 700;
}

.admin-page-title p,
.admin-muted {
    margin: 0;
    color: #64748b;
}

.admin-stats {
    margin-bottom: 2px;
}

.admin-stat-card,
.admin-panel {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #fff;
}

.admin-stat-card {
    padding: 20px;
}

.admin-stat-card span {
    display: block;
    margin-bottom: 10px;
    color: #64748b;
}

.admin-stat-card strong {
    display: block;
    font-size: 30px;
    line-height: 1;
}

.admin-stat-card em {
    display: block;
    margin-top: 12px;
    color: #64748b;
    font-size: 13px;
    font-style: normal;
}

.admin-panel {
    min-height: 180px;
    padding: 18px;
}

.admin-panel-title {
    margin-bottom: 18px;
    font-size: 16px;
    font-weight: 700;
}

.admin-login-count {
    margin: 8px 0 6px;
    font-size: 36px;
    font-weight: 700;
    color: #16a085;
}

.admin-dashboard-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    margin-top: 14px;
}

.admin-dashboard-stats {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
}

.admin-dashboard-grid:before,
.admin-dashboard-grid:after,
.admin-dashboard-stats:before,
.admin-dashboard-stats:after {
    display: none;
}

.admin-dashboard-grid > [class*="layui-col-"],
.admin-dashboard-stats > [class*="layui-col-"] {
    display: flex;
}

.admin-dashboard-grid .admin-panel,
.admin-dashboard-stats .admin-stat-card {
    width: 100%;
}

.admin-metric-panel,
.admin-dashboard-table-panel {
    min-height: 0;
}

.admin-metric-list {
    display: grid;
    gap: 10px;
}

.admin-metric-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eef2f7;
}

.admin-metric-list li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.admin-metric-list span {
    color: #64748b;
}

.admin-metric-list strong {
    color: #1f2937;
    font-weight: 700;
    text-align: right;
}

.admin-dashboard-table {
    margin: 0;
}

.admin-dashboard-table th,
.admin-dashboard-table td {
    font-size: 13px;
}

.admin-visual-panel {
    min-height: 0;
    overflow: hidden;
}

.admin-trend-chart {
    height: 220px;
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    align-items: end;
    gap: 14px;
    padding: 12px 4px 0;
    border-bottom: 1px solid #e5e7eb;
}

.admin-trend-day {
    display: grid;
    gap: 7px;
    justify-items: center;
    min-width: 0;
}

.admin-trend-bars {
    height: 140px;
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 5px;
}

.admin-trend-bar {
    display: block;
    width: 14px;
    min-height: 4px;
    border-radius: 6px 6px 0 0;
}

.admin-trend-bar-main {
    background: linear-gradient(180deg, #2563eb 0%, #60a5fa 100%);
}

.admin-trend-bar-sub {
    width: 10px;
    background: linear-gradient(180deg, #14b8a6 0%, #5eead4 100%);
}

.admin-trend-day strong {
    font-size: 13px;
}

.admin-trend-day em {
    color: #64748b;
    font-size: 12px;
    font-style: normal;
}

.admin-chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 14px;
    color: #64748b;
    font-size: 13px;
}

.admin-chart-legend span,
.admin-donut-legend span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.admin-chart-legend i,
.admin-donut-legend i {
    width: 10px;
    height: 10px;
    border-radius: 999px;
}

.admin-donut-layout {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
}

.admin-donut,
.admin-mini-ring {
    display: grid;
    place-items: center;
    border-radius: 50%;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.06);
}

.admin-donut {
    width: 168px;
    height: 168px;
}

.admin-donut > div,
.admin-mini-ring > div {
    display: grid;
    place-items: center;
    width: 62%;
    height: 62%;
    border-radius: 50%;
    background: #fff;
    text-align: center;
}

.admin-donut strong,
.admin-mini-ring strong {
    color: #111827;
    font-size: 24px;
    line-height: 1;
}

.admin-donut span,
.admin-mini-ring span {
    margin-top: 5px;
    color: #64748b;
    font-size: 12px;
}

.admin-donut-legend {
    display: grid;
    gap: 9px;
}

.admin-donut-legend li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: #64748b;
}

.admin-donut-legend strong {
    color: #1f2937;
}

.admin-radar-layout {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
}

.admin-radar {
    width: 230px;
    height: 220px;
}

.admin-radar-ring {
    fill: none;
    stroke: #e5e7eb;
    stroke-width: 1;
}

.admin-radar-area {
    fill: rgba(37, 99, 235, 0.18);
    stroke: none;
}

.admin-radar-line {
    fill: none;
    stroke: #2563eb;
    stroke-width: 3;
}

.admin-radar text {
    fill: #64748b;
    font-size: 10px;
}

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

.admin-radar-scores li,
.admin-login-stats div {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid #eef2f7;
}

.admin-radar-scores li:last-child,
.admin-login-stats div:last-child {
    border-bottom: 0;
}

.admin-radar-scores span,
.admin-login-stats span {
    color: #64748b;
}

.admin-radar-scores strong,
.admin-login-stats strong {
    color: #1f2937;
}

.admin-login-visual {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
}

.admin-mini-ring {
    width: 136px;
    height: 136px;
}

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

.admin-login-legend {
    margin-top: 16px;
}

.admin-rank-list {
    display: grid;
    gap: 14px;
}

.admin-rank-head {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
}

.admin-rank-head span {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 999px;
    color: #2563eb;
    background: #eff6ff;
    font-weight: 700;
}

.admin-rank-head strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-rank-head em {
    color: #1f2937;
    font-style: normal;
    font-weight: 700;
}

.admin-rank-track {
    height: 9px;
    margin: 7px 0 5px 38px;
    overflow: hidden;
    border-radius: 999px;
    background: #eef2f7;
}

.admin-rank-track i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #2563eb 0%, #14b8a6 100%);
}

.admin-rank-list p {
    margin: 0 0 0 38px;
    color: #64748b;
    font-size: 12px;
}

.admin-timeline {
    position: relative;
    display: grid;
    gap: 14px;
}

.admin-timeline:before {
    content: "";
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: #e5e7eb;
}

.admin-timeline li {
    position: relative;
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: start;
}

.admin-timeline li > i {
    position: relative;
    z-index: 1;
    width: 16px;
    height: 16px;
    margin-top: 3px;
    border: 3px solid #dbeafe;
    border-radius: 999px;
    background: #2563eb;
}

.admin-timeline div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.admin-timeline div span {
    padding: 2px 8px;
    border-radius: 999px;
    color: #0f766e;
    background: #ccfbf1;
    font-size: 12px;
}

.admin-timeline p {
    grid-column: 2 / 4;
    margin: -4px 0 0;
    color: #64748b;
    font-size: 13px;
}

.admin-timeline em {
    color: #94a3b8;
    font-size: 12px;
    font-style: normal;
}

.admin-snapshot-hero {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 16px;
    align-items: center;
    margin-bottom: 18px;
}

.admin-snapshot-hero .admin-mini-ring {
    width: 112px;
    height: 112px;
}

.admin-snapshot-hero span {
    color: #64748b;
}

.admin-snapshot-hero strong {
    display: block;
    margin-top: 8px;
    font-size: 26px;
}

.admin-mini-tile-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.admin-mini-tile {
    padding: 10px;
    border: 1px solid #eef2f7;
    border-radius: 8px;
    background: #f8fafc;
}

.admin-mini-tile span {
    display: block;
    color: #64748b;
    font-size: 12px;
}

.admin-mini-tile strong {
    display: block;
    margin-top: 5px;
    color: #1f2937;
    font-size: 16px;
}

.admin-empty-visual {
    min-height: 72px;
    display: grid;
    place-items: center;
    color: #64748b;
}

@media screen and (max-width: 767.98px) {
    .admin-donut-layout,
    .admin-radar-layout,
    .admin-login-visual,
    .admin-snapshot-hero {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .admin-mini-tile-grid {
        grid-template-columns: 1fr;
    }
}

.admin-coming-soon {
    display: grid;
    place-items: center;
    text-align: center;
}

.admin-coming-soon h1 {
    margin: 0 0 10px;
    font-size: 24px;
}

.admin-flash {
    margin-bottom: 16px;
    padding: 10px 14px;
    border: 1px solid #b8e6d7;
    border-radius: 6px;
    color: #0f766e;
    background: #ecfdf5;
}

.admin-flash-danger {
    border-color: #f3c3c3;
    color: #b42318;
    background: #fff5f5;
}

.admin-filter,
.admin-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.admin-filter .layui-input,
.admin-filter .layui-select,
.admin-filter select {
    width: 220px;
}

.admin-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid #edf2f7;
}

.admin-pagination-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    color: #64748b;
    font-size: 13px;
}

.admin-pagination-summary span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid #e2e8f0;
    border-radius: 999px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.admin-pagination-summary strong {
    color: #0f172a;
    font-weight: 700;
}

.admin-pagination-size-form {
    margin: 0;
}

.admin-pagination-size-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 13px;
}

.admin-pagination-size-label select {
    min-width: 72px;
    height: 32px;
    padding: 0 24px 0 10px;
    border: 1px solid #dbe3ec;
    border-radius: 8px;
    color: #0f172a;
    background: #fff;
    outline: none;
}

.admin-pagination-size-label select:focus {
    border-color: #16a085;
}

.admin-pagination-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.admin-pagination .admin-pagination-link,
.admin-pagination .admin-pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid #dbe3ec;
    border-radius: 10px;
    color: #475569;
    background: #fff;
    box-sizing: border-box;
    text-decoration: none;
    font-weight: 600;
    line-height: 1;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.admin-pagination .admin-pagination-link:hover {
    color: #0f766e;
    border-color: #99f6e4;
    background: #f0fdfa;
}

.admin-pagination .admin-pagination-link.is-active {
    color: #fff;
    border-color: #16a085;
    background: linear-gradient(135deg, #16a085 0%, #0f766e 100%);
    box-shadow: 0 8px 18px rgba(15, 118, 110, 0.18);
}

.admin-pagination .admin-pagination-link.is-disabled {
    color: #94a3b8;
    border-color: #e5e7eb;
    background: #f8fafc;
    cursor: not-allowed;
    box-shadow: none;
}

.admin-pagination .admin-pagination-ellipsis {
    min-width: 20px;
    padding: 0 4px;
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    color: #94a3b8;
}

.admin-table {
    margin: 0;
}

.admin-table-panel {
    overflow-x: auto;
}

.admin-table td {
    vertical-align: middle;
    word-break: break-word;
}

.admin-index-cell {
    width: 72px;
    text-align: center;
    white-space: nowrap;
}

.admin-table th {
    vertical-align: middle;
}

.admin-assignment-table {
    min-width: 1160px;
}

.admin-assignment-list-table {
    width: 100%;
    min-width: 0;
    table-layout: fixed;
}

.admin-assignment-list-table th,
.admin-assignment-list-table td {
    overflow-wrap: anywhere;
}

.admin-assignment-col-title {
    font-weight: 600;
}

.admin-assignment-col-meta,
.admin-assignment-col-map,
.admin-assignment-col-time,
.admin-assignment-col-stats {
    color: #475569;
    line-height: 1.5;
}

.admin-assignment-col-stats {
    font-size: 13px;
}

.admin-assignment-list-table td.admin-actions,
.admin-assignment-list-table .admin-assignment-actions {
    min-width: 0;
    white-space: normal;
}

.admin-profile-list-table {
    width: 100%;
    min-width: 0;
    table-layout: fixed;
}

.admin-profile-list-table th,
.admin-profile-list-table td {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-profile-col-no {
    width: 124px;
}

.admin-profile-col-name {
    width: 92px;
    font-weight: 600;
}

.admin-profile-col-class {
    width: 180px;
}

.admin-profile-col-course {
    width: 140px;
}

.admin-profile-col-score,
.admin-profile-col-level,
.admin-profile-col-status,
.admin-profile-col-progress {
    text-align: center;
}

.admin-profile-col-score {
    width: 74px;
}

.admin-profile-col-level,
.admin-profile-col-progress {
    width: 88px;
}

.admin-profile-col-status {
    width: 108px;
}

.admin-profile-col-time {
    width: 152px;
    color: #475569;
}

.admin-profile-col-action {
    width: 72px;
    text-align: center;
}

.admin-profile-col-action .layui-btn {
    min-width: 52px;
}

.admin-status-cell {
    min-width: 68px;
    text-align: center;
    white-space: nowrap;
}

.admin-status-cell .layui-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 22px;
    height: auto;
    padding: 2px 8px;
    line-height: 18px;
    white-space: nowrap;
    box-sizing: border-box;
}

.admin-empty-cell {
    height: 72px;
    text-align: center;
    color: #64748b;
}

.admin-actions:not(td) {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.admin-actions form {
    display: inline-flex;
    margin: 0;
}

td.admin-actions {
    min-width: 96px;
    vertical-align: middle;
    white-space: nowrap;
}

td.admin-actions > a,
td.admin-actions > form {
    margin-right: 4px;
    vertical-align: middle;
}

td.admin-actions > :last-child {
    margin-right: 0;
}

.admin-actions .layui-btn,
.admin-table td > .layui-btn-xs {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 26px;
    margin-left: 0;
    padding: 0 8px;
    border: 1px solid #d1fae5;
    border-radius: 5px;
    color: #047857;
    background: #fff;
    font-size: 12px;
    font-weight: 500;
    line-height: 26px;
    box-shadow: none;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.admin-actions .layui-btn:hover,
.admin-table td > .layui-btn-xs:hover {
    color: #065f46;
    border-color: #6ee7b7;
    background: #ecfdf5;
}

.admin-actions .layui-btn-normal,
.admin-actions .admin-action-submit,
.admin-table td > .layui-btn-normal.layui-btn-xs {
    color: #2563eb;
    border-color: #dbeafe;
    background: #fff;
}

.admin-actions .layui-btn-normal:hover,
.admin-actions .admin-action-submit:hover,
.admin-table td > .layui-btn-normal.layui-btn-xs:hover {
    color: #1e40af;
    border-color: #93c5fd;
    background: #eff6ff;
}

.admin-actions .layui-btn-warm,
.admin-table td > .layui-btn-warm.layui-btn-xs {
    color: #b45309;
    border-color: #fde68a;
    background: #fff;
}

.admin-actions .layui-btn-warm:hover,
.admin-table td > .layui-btn-warm.layui-btn-xs:hover {
    color: #92400e;
    border-color: #fcd34d;
    background: #fffbeb;
}

.admin-actions .layui-btn-danger,
.admin-actions .admin-action-delete,
.admin-table td > .layui-btn-danger.layui-btn-xs {
    color: #b42318;
    border-color: #fee2e2;
    background: #fff;
}

.admin-actions .layui-btn-danger:hover,
.admin-actions .admin-action-delete:hover,
.admin-table td > .layui-btn-danger.layui-btn-xs:hover {
    color: #991b1b;
    border-color: #fca5a5;
    background: #fff5f5;
}

.admin-assignment-actions {
    min-width: 0;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 4px;
    white-space: normal;
}

.admin-assignment-actions .layui-btn {
    margin-left: 0;
}

.admin-assignment-actions form {
    margin: 0;
}

.admin-action-text,
.admin-action-text.layui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 26px;
    min-width: 44px;
    padding: 0;
    border: 1px solid transparent;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 500;
    line-height: 26px;
    box-shadow: none;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.admin-action-submit,
.admin-action-submit.layui-btn {
    color: #2563eb;
    border-color: #dbeafe;
    background: #fff;
}

.admin-action-submit:hover {
    color: #1e40af;
    border-color: #93c5fd;
    background: #eff6ff;
}

.admin-action-edit,
.admin-action-edit.layui-btn {
    color: #047857;
    border-color: #d1fae5;
    background: #fff;
}

.admin-action-edit:hover {
    color: #065f46;
    border-color: #6ee7b7;
    background: #ecfdf5;
}

.admin-action-delete,
.admin-action-delete.layui-btn {
    color: #b42318;
    border-color: #fee2e2;
    background: #fff;
}

.admin-action-delete:hover {
    color: #991b1b;
    border-color: #fca5a5;
    background: #fff5f5;
}

.admin-form {
    max-width: 880px;
}

.admin-form .layui-form-label {
    width: 96px;
}

.admin-form .layui-input-block {
    margin-left: 126px;
}

.admin-form-actions {
    margin-left: 126px;
    display: flex;
    gap: 10px;
}

.admin-inline-form {
    display: inline-flex;
    gap: 8px;
    margin: 0;
}

.admin-submission-detail {
    margin-bottom: 16px;
}

.admin-submission-detail h2,
.admin-evaluation-grid h2,
.admin-panel h2 {
    margin: 0 0 12px;
    font-size: 17px;
}

.admin-submission-detail pre {
    min-height: 120px;
    margin: 14px 0;
    padding: 14px;
    overflow: auto;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f8fafc;
    white-space: pre-wrap;
}

.admin-score-form {
    margin-top: 16px;
}

.admin-evaluation-summary,
.admin-evaluation-grid {
    display: grid;
    gap: 14px;
    margin-bottom: 14px;
}

.admin-analysis-charts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 14px;
}

.admin-profile-charts {
    grid-template-columns: 220px minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
}

.admin-profile-metrics {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 14px;
}

.admin-evaluation-summary {
    grid-template-columns: 280px 1fr;
}

.admin-evaluation-summary strong,
.admin-profile-metrics strong {
    display: block;
    margin: 8px 0 6px;
    color: #0f766e;
    font-size: 36px;
    line-height: 1;
}

.admin-evaluation-summary em,
.admin-profile-metrics em {
    font-style: normal;
    color: #64748b;
}

.admin-profile-metrics .admin-panel {
    min-height: 0;
}

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

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

.admin-tag-list span {
    padding: 6px 10px;
    border-radius: 999px;
    color: #0f766e;
    background: #ecfdf5;
}

.admin-ability-list {
    display: grid;
    gap: 12px;
}

.admin-ability-list div {
    display: grid;
    grid-template-columns: 84px 46px 1fr;
    align-items: center;
    gap: 10px;
}

.admin-ability-list i {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #e5e7eb;
}

.admin-ability-list b {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: #16a085;
}

.admin-radar-chart {
    display: grid;
    place-items: center;
    min-height: 210px;
}

.admin-radar-chart svg {
    width: min(100%, 360px);
    height: auto;
}

.admin-radar-chart .chart-grid polygon,
.admin-radar-chart .chart-grid line {
    fill: none;
    stroke: #d7e0ea;
    stroke-width: 1;
}

.admin-radar-chart .chart-area {
    fill: rgba(22, 160, 133, 0.2);
    stroke: #0f766e;
    stroke-width: 2;
}

.admin-radar-chart .chart-labels text {
    fill: #475569;
    font-size: 11px;
    text-anchor: middle;
    dominant-baseline: middle;
}

.admin-chart-bars,
.admin-preference-chart {
    display: grid;
    gap: 12px;
}

.admin-chart-bar-row {
    display: grid;
    gap: 7px;
}

.admin-chart-bar-row div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.admin-chart-bar-row span {
    min-width: 0;
    color: #475569;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-chart-bar-row strong {
    flex: 0 0 auto;
    color: #0f172a;
}

.admin-chart-bar-row i {
    display: block;
    height: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: #e5e7eb;
}

.admin-chart-bar-row b {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #16a085, #2563eb);
}

.admin-profile-score-chart {
    display: grid;
    place-items: center;
    align-content: start;
}

.admin-score-ring {
    display: grid;
    place-items: center;
    align-content: center;
    width: 126px;
    height: 126px;
    margin-top: 10px;
    border-radius: 50%;
    color: #0f766e;
    background:
        radial-gradient(circle at center, #fff 0 58%, transparent 59%),
        conic-gradient(#0f766e calc(var(--score) * 1%), #e5e7eb 0);
}

.admin-score-ring strong {
    font-size: 28px;
    line-height: 1;
}

.admin-score-ring span {
    margin-top: 5px;
    color: #64748b;
    font-size: 13px;
}

.admin-suggestion-list {
    display: grid;
    gap: 10px;
}

.admin-suggestion-list article {
    padding: 10px 12px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f8fafc;
}

.admin-suggestion-list p {
    margin: 6px 0 0;
    color: #64748b;
}

.admin-profile-preference {
    display: grid;
    gap: 10px;
}

.admin-profile-preference div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f8fafc;
}

.admin-profile-preference span {
    color: #64748b;
}

@media (max-width: 1100px) {
    .admin-evaluation-summary,
    .admin-evaluation-grid,
    .admin-analysis-charts,
    .admin-profile-metrics {
        grid-template-columns: 1fr;
    }
}

.admin-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 8px;
    min-height: 38px;
}

.admin-permission-list {
    max-height: 360px;
    overflow: auto;
    padding: 8px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
}

.admin-inline-edit {
    display: grid;
    grid-template-columns: 120px 72px minmax(140px, 1fr) 64px 86px 52px;
    gap: 6px;
    align-items: center;
}

.admin-inline-edit .layui-input,
.admin-inline-edit select {
    height: 30px;
}

.admin-permission-table th:last-child,
.admin-permission-table td:last-child {
    min-width: 560px;
}

.admin-question-form {
    max-width: 1040px;
}

.admin-question-content {
    min-height: 130px;
}

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

.admin-option-header,
.admin-option-row {
    display: grid;
    grid-template-columns: 72px minmax(240px, 1fr) 92px;
    gap: 8px;
    align-items: center;
}

.admin-option-header {
    color: #64748b;
}

.admin-option-row .layui-textarea {
    min-height: 42px;
}

.admin-test-form {
    max-width: 1080px;
}

.admin-test-question-list {
    max-height: 420px;
    overflow: auto;
    padding: 10px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
}

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

.admin-test-question-option {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 10px;
    border: 1px solid #edf1f5;
    border-radius: 6px;
    background: #fbfcfe;
}

.admin-test-question-option input {
    margin-top: 5px;
}

.admin-test-question-option strong,
.admin-test-question-option small {
    display: block;
}

.admin-test-question-option small {
    margin-top: 4px;
    color: #64748b;
}

.admin-test-result-detail {
    display: grid;
    gap: 12px;
}

.admin-test-answer {
    padding: 14px;
    border: 1px solid #edf1f5;
    border-radius: 6px;
    background: #fbfcfe;
}

.admin-test-answer header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.admin-test-answer p,
.admin-test-question {
    margin: 8px 0 0;
    line-height: 1.55;
}

.admin-attachment-table {
    margin-top: 10px;
}

.admin-knowledge-graph-page {
    position: relative;
}

.admin-knowledge-graph-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 14px;
}

.admin-knowledge-graph-summary .admin-panel {
    min-height: 0;
}

.admin-knowledge-graph-summary span {
    display: block;
    color: #64748b;
}

.admin-knowledge-graph-summary strong {
    display: block;
    margin: 8px 0 6px;
    color: #0f766e;
    font-size: 34px;
    line-height: 1;
}

.admin-knowledge-graph-summary em {
    font-style: normal;
    color: #64748b;
}

.admin-knowledge-graph-shell {
    min-height: 620px;
}

.admin-knowledge-graph-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.9fr) minmax(320px, 0.9fr);
    gap: 14px;
    align-items: start;
}

.admin-knowledge-graph-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 14px;
}

.admin-knowledge-graph-head h2 {
    margin: 0 0 6px;
}

.admin-knowledge-graph-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 14px;
    color: #64748b;
}

.admin-knowledge-graph-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.admin-knowledge-graph-legend i {
    width: 24px;
    height: 10px;
    border-radius: 999px;
    background: #16a085;
}

.admin-knowledge-graph-legend .kg-legend-item.node i {
    height: 14px;
    border: 2px solid #1d4ed8;
    background: #dbeafe;
}

.admin-knowledge-graph-legend .kg-legend-item.node.knowledge_point i {
    border-color: #0f766e;
    background: #d1fae5;
}

.admin-knowledge-graph-legend .kg-legend-item.node.question_bank i {
    border-color: #b45309;
    background: #fef3c7;
}

.admin-knowledge-graph-legend .kg-legend-item.link.chapter_point i {
    height: 3px;
    background: #3b82f6;
}

.admin-knowledge-graph-legend .kg-legend-item.link.chapter_bank i {
    height: 3px;
    background: #f59e0b;
}

.admin-knowledge-graph-legend .kg-legend-item.link.bank_point i {
    height: 3px;
    background: #14b8a6;
}

.admin-knowledge-graph-legend .kg-legend-item.link.prerequisite i {
    height: 0;
    border-top: 2px dashed #8b5cf6;
    border-radius: 0;
    background: transparent;
}

.admin-knowledge-graph-canvas {
    position: relative;
    min-height: 560px;
    overflow: auto;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    background:
        linear-gradient(180deg, rgba(248, 250, 252, 0.98) 0%, rgba(241, 245, 249, 0.95) 100%),
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.08), transparent 36%);
}

.admin-knowledge-graph-toolbar {
    display: inline-flex;
    gap: 10px;
    margin-bottom: 14px;
}

.admin-knowledge-view-toggle {
    padding: 9px 16px;
    border: 1px solid #dbe3ec;
    border-radius: 999px;
    background: #fff;
    color: #475569;
    font-weight: 600;
    transition: border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.admin-knowledge-view-toggle.is-active {
    border-color: #0f766e;
    background: #ecfdf5;
    color: #0f766e;
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.admin-knowledge-graph-board {
    display: grid;
    gap: 16px;
    min-height: 560px;
    padding: 18px;
}

.admin-knowledge-graph-visual {
    position: relative;
    min-width: 980px;
    min-height: 560px;
    padding: 18px;
}

.admin-knowledge-graph-svg {
    position: absolute;
    inset: 18px;
    width: calc(100% - 36px);
    height: calc(100% - 36px);
    pointer-events: none;
    overflow: visible;
}

.admin-knowledge-graph-stage {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(240px, 1fr));
    gap: 28px;
    min-height: 524px;
}

.admin-knowledge-graph-group {
    display: grid;
    align-content: start;
    gap: 12px;
    padding: 16px;
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.04);
}

.admin-knowledge-graph-group h3 {
    margin: 0;
    color: #334155;
    font-size: 16px;
}

.admin-knowledge-graph-group-list {
    display: grid;
    gap: 12px;
}

.admin-knowledge-graph-node {
    position: relative;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #dbe3ec;
    border-radius: 14px;
    text-align: left;
    background: #fff;
    box-shadow: 0 6px 14px rgba(15, 23, 42, 0.04);
    transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease, opacity 0.16s ease;
}

.admin-knowledge-graph-node strong,
.admin-knowledge-graph-node span {
    display: block;
}

.admin-knowledge-graph-node strong {
    color: #0f172a;
    font-size: 13px;
}

.admin-knowledge-graph-node span {
    margin-top: 5px;
    color: #64748b;
    font-size: 12px;
    line-height: 1.5;
}

.admin-knowledge-graph-node.is-chapter {
    border-color: #bfdbfe;
    background: #eff6ff;
}

.admin-knowledge-graph-node.is-point {
    border-color: #a7f3d0;
    background: #f0fdf4;
}

.admin-knowledge-graph-node.is-bank {
    border-color: #fde68a;
    background: #fffbeb;
}

.admin-knowledge-graph-node:hover {
    border-color: #93c5fd;
    transform: translateY(-1px);
}

.admin-knowledge-link {
    fill: none;
    stroke-width: 3px;
    stroke-linecap: round;
    stroke-opacity: 0.9;
    transition: stroke-opacity 0.16s ease, stroke-width 0.16s ease, opacity 0.16s ease;
}

.admin-knowledge-link-chapter_point {
    stroke: #3b82f6;
}

.admin-knowledge-link-chapter_bank {
    stroke: #f59e0b;
}

.admin-knowledge-link-bank_point {
    stroke: #14b8a6;
}

.admin-knowledge-link-prerequisite {
    stroke: #8b5cf6;
    stroke-dasharray: 7 7;
}

.admin-knowledge-board-title h3 {
    margin: 0 0 6px;
    font-size: 22px;
}

.admin-knowledge-board-title p {
    margin: 0;
}

.admin-knowledge-chapter-stack {
    display: grid;
    gap: 16px;
}

.admin-knowledge-chapter-card,
.admin-knowledge-bank-card {
    border: 1px solid #dbe3ec;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.05);
    transition: border-color 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
}

.admin-knowledge-chapter-head {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 18px 10px;
    align-items: flex-start;
}

.admin-knowledge-chapter-actions {
    display: grid;
    justify-items: end;
    gap: 12px;
    flex-shrink: 0;
}

.admin-knowledge-chapter-anchor,
.admin-knowledge-bank-anchor {
    flex: 1;
    text-align: left;
}

.admin-knowledge-step {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #1d4ed8;
    font-size: 12px;
    font-weight: 700;
}

.admin-knowledge-chapter-anchor h3,
.admin-knowledge-bank-anchor h4 {
    margin: 10px 0 6px;
    color: #0f172a;
}

.admin-knowledge-chapter-anchor p,
.admin-knowledge-bank-anchor p {
    margin: 0;
    color: #64748b;
    line-height: 1.6;
}

.admin-knowledge-chapter-metrics {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.admin-knowledge-chapter-nav {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.admin-knowledge-chapter-nav-btn {
    width: 36px;
    height: 36px;
    border: 1px solid #dbe3ec;
    border-radius: 10px;
    background: #fff;
    color: #334155;
    transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease, transform 0.16s ease;
}

.admin-knowledge-chapter-nav-btn:hover:not(:disabled) {
    border-color: #93c5fd;
    color: #1d4ed8;
    transform: translateY(-1px);
}

.admin-knowledge-chapter-nav-btn:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.admin-knowledge-chapter-nav-status {
    min-width: 96px;
    color: #64748b;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
}

.admin-knowledge-chapter-metrics span {
    padding: 7px 10px;
    border-radius: 999px;
    background: #f8fafc;
    color: #475569;
    font-size: 12px;
    font-weight: 600;
}

.admin-knowledge-flow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr);
    gap: 14px;
    padding: 0 18px 18px;
    align-items: start;
}

.admin-knowledge-flow-arrow {
    display: grid;
    place-items: center;
    min-height: 100%;
    color: #94a3b8;
    font-size: 26px;
    font-weight: 700;
}

.admin-knowledge-column {
    padding: 14px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #fff;
}

.admin-knowledge-column h3,
.admin-knowledge-mini-list strong {
    display: block;
    margin: 0 0 10px;
    color: #334155;
    font-size: 14px;
}

.admin-knowledge-column-list,
.admin-knowledge-mini-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.admin-knowledge-node {
    min-width: 0;
    max-width: 100%;
    padding: 10px 12px;
    border: 1px solid #dbe3ec;
    border-radius: 12px;
    text-align: left;
    background: #fff;
    transition: border-color 0.16s ease, background-color 0.16s ease, transform 0.16s ease, opacity 0.16s ease;
}

.admin-knowledge-node strong,
.admin-knowledge-node span {
    display: block;
}

.admin-knowledge-node strong {
    color: #0f172a;
    font-size: 13px;
}

.admin-knowledge-node span {
    margin-top: 4px;
    color: #64748b;
    font-size: 12px;
}

.admin-knowledge-node.is-point {
    border-color: #a7f3d0;
    background: #f0fdf4;
}

.admin-knowledge-node.is-bank {
    border-color: #fde68a;
    background: #fffbeb;
}

.admin-knowledge-node.is-chapter {
    border-color: #bfdbfe;
    background: #eff6ff;
}

.admin-knowledge-node.is-compact {
    padding: 8px 10px;
}

.admin-knowledge-node:hover,
.admin-knowledge-chapter-card:hover,
.admin-knowledge-bank-card:hover {
    border-color: #93c5fd;
    transform: translateY(-1px);
}

.admin-knowledge-empty-inline {
    color: #94a3b8;
    font-size: 12px;
}

.admin-knowledge-bank-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.admin-knowledge-bank-card {
    padding: 16px;
}

.admin-knowledge-bank-anchor {
    margin-bottom: 12px;
}

.admin-knowledge-bank-overview {
    display: grid;
    gap: 12px;
}

.admin-knowledge-node.is-selected,
.admin-knowledge-chapter-card.is-selected,
.admin-knowledge-bank-card.is-selected,
.admin-knowledge-chapter-anchor.is-selected,
.admin-knowledge-bank-anchor.is-selected,
.admin-knowledge-graph-node.is-selected {
    border-color: #16a085 !important;
    box-shadow: 0 0 0 3px rgba(22, 160, 133, 0.14);
}

.admin-knowledge-link.is-selected {
    stroke-width: 4px;
    stroke-opacity: 1;
}

.is-dimmed {
    opacity: 0.35;
}

.admin-knowledge-graph-empty {
    position: absolute;
    inset: 0;
    display: none;
    place-items: center;
    color: #64748b;
    background: #fbfcfe;
}

.admin-knowledge-graph-detail {
    min-height: 620px;
    position: sticky;
    top: 16px;
}

.admin-knowledge-graph-detail-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.admin-knowledge-graph-detail-head h2 {
    margin: 0;
}

.admin-knowledge-graph-detail-body {
    display: grid;
    gap: 14px;
}

.admin-knowledge-graph-detail-hero {
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.admin-knowledge-graph-detail-type {
    display: inline-flex;
    margin-bottom: 10px;
    padding: 4px 10px;
    border-radius: 999px;
    color: #0f766e;
    background: #ecfdf5;
    font-size: 12px;
    font-weight: 700;
}

.admin-knowledge-graph-detail-hero h3 {
    margin: 0 0 8px;
    color: #0f172a;
    font-size: 22px;
}

.admin-knowledge-graph-detail-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.admin-knowledge-graph-detail-metrics article {
    padding: 14px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
}

.admin-knowledge-graph-detail-metrics span {
    display: block;
    color: #64748b;
    font-size: 12px;
}

.admin-knowledge-graph-detail-metrics strong {
    display: block;
    margin-top: 6px;
    color: #0f766e;
    font-size: 24px;
    line-height: 1.1;
}

.admin-knowledge-graph-detail-section {
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #fff;
}

.admin-knowledge-graph-detail-section h3 {
    margin: 0 0 12px;
    font-size: 16px;
}

.admin-knowledge-graph-detail-list {
    display: grid;
    gap: 10px;
}

.admin-knowledge-graph-detail-item {
    display: block;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    text-align: left;
    background: #f8fafc;
    transition: border-color 0.16s ease, background-color 0.16s ease, transform 0.16s ease;
}

.admin-knowledge-graph-detail-item:hover {
    border-color: #93c5fd;
    background: #eff6ff;
    transform: translateY(-1px);
}

.admin-knowledge-graph-detail-item strong,
.admin-knowledge-graph-detail-item span {
    display: block;
}

.admin-knowledge-graph-detail-item strong {
    color: #0f172a;
}

.admin-knowledge-graph-detail-item span {
    margin-top: 4px;
    color: #64748b;
    font-size: 12px;
}

.admin-knowledge-graph-page-simple .admin-knowledge-graph-shell {
    min-height: 0;
}

.admin-knowledge-graph-page-simple .admin-knowledge-graph-canvas {
    overflow: visible;
}

.admin-knowledge-graph-page-simple .admin-knowledge-graph-board {
    min-height: 0;
}

.admin-knowledge-graph-inline-empty {
    display: grid;
    place-items: center;
    min-height: 320px;
    padding: 24px;
    color: #64748b;
    font-size: 15px;
}

@media (max-width: 768px) {
    .admin-login-panel {
        padding: 28px 22px;
    }

    .layui-layout-admin .layui-side {
        width: 180px;
    }

    .layui-layout-admin .layui-body,
    .layui-layout-admin .layui-footer {
        left: 180px;
    }

    .admin-filter {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-filter .layui-input,
    .admin-filter .layui-select,
    .admin-filter select {
        width: 100%;
    }

    .admin-pagination {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-pagination-summary {
        width: 100%;
    }

    .admin-pagination-size-form,
    .admin-pagination-size-label {
        width: auto;
    }

    .admin-pagination-links {
        width: 100%;
    }

    .admin-form .layui-form-label {
        width: auto;
    }

    .admin-form .layui-input-block,
    .admin-form-actions {
        margin-left: 0;
    }

    .admin-option-header,
    .admin-option-row {
        grid-template-columns: 58px minmax(0, 1fr) 76px;
    }

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

    .admin-knowledge-graph-layout {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-graph-head {
        flex-direction: column;
    }

    .admin-knowledge-chapter-head {
        flex-direction: column;
    }

    .admin-knowledge-chapter-actions {
        width: 100%;
        justify-items: stretch;
    }

    .admin-knowledge-chapter-metrics,
    .admin-knowledge-chapter-nav {
        justify-content: flex-start;
    }

    .admin-knowledge-graph-legend {
        justify-content: flex-start;
    }

    .admin-knowledge-graph-detail {
        position: static;
        min-height: 0;
    }

    .admin-knowledge-graph-detail-metrics {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-flow {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-flow-arrow {
        min-height: 24px;
        transform: rotate(90deg);
    }

    .admin-knowledge-bank-grid {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-graph-toolbar {
        width: 100%;
        flex-wrap: wrap;
    }

    .admin-knowledge-graph-visual {
        min-width: 0;
    }

    .admin-knowledge-graph-stage {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-graph-svg {
        display: none;
    }
}

@media (max-width: 560px) {
    .admin-knowledge-graph-summary {
        grid-template-columns: 1fr;
    }

    .admin-knowledge-chapter-nav {
        width: 100%;
    }

    .admin-knowledge-chapter-nav-status {
        min-width: 0;
        flex: 1;
    }
}