.page-knowledge {
    background: #f4f7fb;
}

.knowledge-page {
    background: linear-gradient(180deg, #f4f7fb 0, #f8fbff 420px, #ffffff 100%);
    padding: 28px 0 72px;
}

.knowledge-hero,
.knowledge-layout {
    width: 1340px;
    max-width: calc(100% - 32px);
    margin: 0 auto;
}

.knowledge-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) 410px;
    gap: 24px;
    align-items: stretch;
}

.knowledge-hero-main {
    min-height: 320px;
    border-radius: 26px;
    padding: 34px 38px;
    background:
        linear-gradient(135deg, rgba(15, 49, 96, 0.96), rgba(28, 121, 176, 0.9)),
        url('https://dybc.oss-cn-beijing.aliyuncs.com/static/images/img6.png') center center / cover no-repeat;
    box-shadow: 0 24px 48px rgba(16, 62, 104, 0.18);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.knowledge-hero-copy {
    max-width: 660px;
}

.knowledge-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.knowledge-hero-copy h1 {
    margin: 22px 0 14px;
    line-height: 1.18;
    font-size: 40px;
    font-weight: 700;
    color: #fff;
}

.knowledge-hero-copy p {
    margin: 0;
    max-width: 620px;
    line-height: 1.9;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.88);
}

.knowledge-hero-actions {
    display: flex;
    gap: 14px;
    margin: 30px 0 0;
}

.knowledge-hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 146px;
    height: 46px;
    padding: 0 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.knowledge-hero-btn:hover {
    transform: translateY(-2px);
}

.knowledge-hero-btn--primary {
    background: #fff;
    color: #174981;
    box-shadow: 0 14px 28px rgba(4, 30, 72, 0.16);
}

.knowledge-hero-btn--secondary {
    border-color: rgba(255, 255, 255, 0.34);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.knowledge-metrics {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.knowledge-metric-card {
    border-radius: 18px;
    padding: 18px 18px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
}

.knowledge-metric-card strong {
    display: block;
    line-height: 1;
    font-size: 30px;
    font-weight: 700;
    color: #fff;
}

.knowledge-metric-card span {
    display: block;
    margin-top: 10px;
    line-height: 1.4;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.82);
}

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

.knowledge-topic-card {
    border: 0;
    border-radius: 22px;
    padding: 24px 22px;
    text-align: left;
    cursor: pointer;
    box-shadow: 0 18px 32px rgba(34, 60, 96, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.knowledge-topic-card:hover,
.knowledge-topic-card.is-active {
    transform: translateY(-3px);
    box-shadow: 0 24px 38px rgba(34, 60, 96, 0.18);
}

.knowledge-topic-card__label {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 12px;
    font-weight: 700;
}

.knowledge-topic-card strong {
    display: block;
    margin-top: 16px;
    line-height: 1.2;
    font-size: 24px;
    font-weight: 700;
}

.knowledge-topic-card p {
    margin: 12px 0 0;
    line-height: 1.75;
    font-size: 14px;
}

.knowledge-topic-card--blue {
    background: linear-gradient(135deg, #1d5ea8, #52a7e2);
    color: #fff;
}

.knowledge-topic-card--teal {
    background: linear-gradient(135deg, #0f7c8e, #55c3cc);
    color: #fff;
}

.knowledge-topic-card--gold {
    background: linear-gradient(135deg, #a56e18, #eead3f);
    color: #fff;
}

.knowledge-topic-card--coral {
    background: linear-gradient(135deg, #aa4c2c, #ef8361);
    color: #fff;
}

.knowledge-layout {
    margin-top: 28px;
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.knowledge-sidebar {
    position: sticky;
    top: 84px;
}

.knowledge-sidebar-panel {
    border-radius: 20px;
    background: #fff;
    border: 1px solid #e8eef6;
    box-shadow: 0 16px 32px rgba(34, 60, 96, 0.08);
    padding: 20px;
}

.knowledge-sidebar-panel + .knowledge-sidebar-panel {
    margin-top: 18px;
}

.knowledge-sidebar-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.knowledge-sidebar-title h2 {
    margin: 0;
    line-height: 1.3;
    font-size: 18px;
    color: #1f3148;
    font-weight: 700;
}

.knowledge-sidebar-title span {
    font-size: 12px;
    color: #6f7f94;
}

.knowledge-sidebar-title--plain {
    margin-bottom: 10px;
}

.knowledge-category-list,
.knowledge-question-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.knowledge-category-list li + li {
    margin-top: 8px;
}

.knowledge-category-item {
    width: 100%;
    border: 0;
    border-radius: 14px;
    background: #f5f8fc;
    padding: 12px 14px;
    text-align: left;
    font-size: 14px;
    color: #40546d;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.knowledge-category-item:hover,
.knowledge-category-item.is-active {
    background: #1d5ea8;
    color: #fff;
    transform: translateX(2px);
}

.knowledge-question-list li {
    position: relative;
    padding-left: 16px;
    line-height: 1.8;
    font-size: 13px;
    color: #4a5f78;
}

.knowledge-question-list li + li {
    margin-top: 8px;
}

.knowledge-question-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #1d5ea8;
}

.knowledge-sidebar-cta {
    display: flex;
    flex-direction: column;
    margin-top: 18px;
    border-radius: 20px;
    padding: 22px 20px;
    text-decoration: none;
    background: linear-gradient(135deg, #112f5f, #2f85c7);
    box-shadow: 0 18px 32px rgba(17, 47, 95, 0.16);
}

.knowledge-sidebar-cta strong {
    line-height: 1.3;
    font-size: 18px;
    color: #fff;
    font-weight: 700;
}

.knowledge-sidebar-cta span {
    margin-top: 10px;
    line-height: 1.8;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.84);
}

.knowledge-content {
    min-width: 0;
}

.knowledge-toolbar {
    border-radius: 24px;
    background: #fff;
    border: 1px solid #e8eef6;
    box-shadow: 0 16px 32px rgba(34, 60, 96, 0.08);
    padding: 24px 28px;
}

.knowledge-toolbar-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
}

.knowledge-toolbar-heading h2 {
    margin: 0;
    line-height: 1.2;
    font-size: 26px;
    color: #1f3148;
    font-weight: 700;
}

.knowledge-toolbar-heading p {
    margin: 0;
    line-height: 1.6;
    font-size: 14px;
    color: #6f7f94;
}

.knowledge-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.knowledge-filter-chip {
    border: 1px solid #d7e4f4;
    border-radius: 999px;
    background: #f7faff;
    padding: 8px 16px;
    font-size: 13px;
    color: #48617d;
    cursor: pointer;
    transition: all 0.2s ease;
}

.knowledge-filter-chip:hover,
.knowledge-filter-chip.is-active {
    border-color: #1d5ea8;
    background: #1d5ea8;
    color: #fff;
}

.knowledge-article-list {
    margin-top: 20px;
}

.knowledge-article {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr) 190px;
    gap: 24px;
    align-items: center;
    border-radius: 24px;
    background: #fff;
    border: 1px solid #e8eef6;
    box-shadow: 0 16px 32px rgba(34, 60, 96, 0.08);
    padding: 20px 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.knowledge-article + .knowledge-article {
    margin-top: 16px;
}

.knowledge-article:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 40px rgba(34, 60, 96, 0.12);
}

.knowledge-article-date {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    min-height: 110px;
    border-radius: 22px;
    color: #fff;
    text-align: center;
    text-decoration: none;
}

.knowledge-article-date__day {
    line-height: 1;
    font-size: 36px;
    font-weight: 700;
}

.knowledge-article-date__month {
    font-size: 14px;
    font-weight: 600;
    opacity: 0.9;
}

.knowledge-article-date__category {
    margin-top: 8px;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 12px;
    font-weight: 700;
}

.knowledge-article-date--blue {
    background: linear-gradient(135deg, #1d5ea8, #4da5df);
}

.knowledge-article-date--teal {
    background: linear-gradient(135deg, #0f7c8e, #56c1ca);
}

.knowledge-article-date--gold {
    background: linear-gradient(135deg, #a56e18, #edb44a);
}

.knowledge-article-date--coral {
    background: linear-gradient(135deg, #aa4c2c, #ed8866);
}

.knowledge-article-date--indigo {
    background: linear-gradient(135deg, #4150ab, #7580df);
}

.knowledge-article-body {
    min-width: 0;
}

.knowledge-article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 12px;
    color: #7a8ca2;
}

.knowledge-article-level {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 999px;
    background: #eef5ff;
    color: #1d5ea8;
    font-weight: 700;
}

.knowledge-article-body h3 {
    margin: 0;
    line-height: 1.45;
    font-size: 23px;
    color: #1f3148;
    font-weight: 700;
}

.knowledge-article-title-link {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.knowledge-article-title-link:hover {
    color: #1d5ea8;
}

.knowledge-article-body p {
    margin: 12px 0 0;
    line-height: 1.9;
    font-size: 14px;
    color: #556a81;
}

.knowledge-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.knowledge-article-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #f5f8fc;
    border: 1px solid #e1eaf4;
    font-size: 12px;
    color: #53697f;
}

.knowledge-article-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.knowledge-article-detail-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 160px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid #d7e4f4;
    background: #fff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    color: #35506f;
    transition: all 0.2s ease;
}

.knowledge-article-detail-link:hover {
    border-color: #1d5ea8;
    color: #1d5ea8;
    transform: translateY(-2px);
}

.knowledge-article-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 160px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.2s ease;
}

.knowledge-article-link:hover {
    transform: translateY(-2px);
}

.knowledge-article-link--blue {
    background: rgba(29, 94, 168, 0.08);
    border-color: rgba(29, 94, 168, 0.2);
    color: #1d5ea8;
}

.knowledge-article-link--teal {
    background: rgba(15, 124, 142, 0.08);
    border-color: rgba(15, 124, 142, 0.2);
    color: #0f7c8e;
}

.knowledge-article-link--gold {
    background: rgba(165, 110, 24, 0.08);
    border-color: rgba(165, 110, 24, 0.2);
    color: #9a670f;
}

.knowledge-article-link--coral {
    background: rgba(170, 76, 44, 0.08);
    border-color: rgba(170, 76, 44, 0.2);
    color: #aa4c2c;
}

.knowledge-article-link--indigo {
    background: rgba(65, 80, 171, 0.08);
    border-color: rgba(65, 80, 171, 0.2);
    color: #4150ab;
}

.knowledge-empty {
    display: none;
    margin: 20px 0 0;
    padding: 28px 24px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid #e8eef6;
    text-align: center;
    line-height: 1.8;
    color: #6f7f94;
}

.knowledge-detail-page {
    background: linear-gradient(180deg, #f4f7fb 0, #f8fbff 360px, #ffffff 100%);
    padding: 28px 0 72px;
}

.knowledge-detail-shell {
    width: 1340px;
    max-width: calc(100% - 32px);
    margin: 0 auto;
}

.knowledge-detail-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 13px;
    color: #6f7f94;
}

.knowledge-detail-breadcrumb a {
    color: #526882;
    text-decoration: none;
}

.knowledge-detail-breadcrumb strong {
    color: #1f3148;
    font-weight: 700;
}

.knowledge-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
}

.knowledge-detail-main {
    min-width: 0;
}

.knowledge-detail-hero {
    border-radius: 28px;
    padding: 34px 36px 32px;
    color: #fff;
    box-shadow: 0 24px 48px rgba(21, 56, 97, 0.16);
}

.knowledge-detail-hero--blue {
    background: linear-gradient(135deg, #1d5ea8, #4da5df);
}

.knowledge-detail-hero--teal {
    background: linear-gradient(135deg, #0f7c8e, #56c1ca);
}

.knowledge-detail-hero--gold {
    background: linear-gradient(135deg, #9d6512, #ecb348);
}

.knowledge-detail-hero--coral {
    background: linear-gradient(135deg, #a34a2c, #ec8765);
}

.knowledge-detail-hero--indigo {
    background: linear-gradient(135deg, #4150ab, #7580df);
}

.knowledge-detail-hero__top {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.knowledge-detail-badge,
.knowledge-detail-level {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 13px;
    font-weight: 700;
}

.knowledge-detail-hero h1 {
    margin: 22px 0 16px;
    line-height: 1.28;
    font-size: 36px;
    color: #fff;
    font-weight: 700;
}

.knowledge-detail-hero p {
    margin: 0;
    line-height: 1.95;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.92);
}

.knowledge-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 18px;
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.86);
}

.knowledge-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.knowledge-detail-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    color: #fff;
}

.knowledge-detail-body {
    margin-top: 22px;
}

.knowledge-detail-panel,
.knowledge-detail-section,
.knowledge-detail-sidecard {
    border-radius: 24px;
    background: #fff;
    border: 1px solid #e8eef6;
    box-shadow: 0 16px 32px rgba(34, 60, 96, 0.08);
}

.knowledge-detail-panel,
.knowledge-detail-section {
    padding: 28px 30px;
}

.knowledge-detail-panel + .knowledge-detail-section,
.knowledge-detail-section + .knowledge-detail-section,
.knowledge-detail-section + .knowledge-detail-panel {
    margin-top: 18px;
}

.knowledge-detail-panel h2,
.knowledge-detail-section h2 {
    margin: 0;
    line-height: 1.4;
    font-size: 24px;
    color: #1f3148;
    font-weight: 700;
}

.knowledge-detail-point-list,
.knowledge-detail-checklist,
.knowledge-detail-outline-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.knowledge-detail-point-list {
    margin-top: 18px;
}

.knowledge-detail-point-list li {
    position: relative;
    padding-left: 20px;
    line-height: 1.95;
    font-size: 15px;
    color: #4e647d;
}

.knowledge-detail-point-list li + li {
    margin-top: 10px;
}

.knowledge-detail-point-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 11px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #1d5ea8;
}

.knowledge-detail-section__heading {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.knowledge-detail-section__heading span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: #eff5fd;
    line-height: 1;
    font-size: 18px;
    color: #1d5ea8;
    font-weight: 700;
}

.knowledge-detail-section p {
    margin: 0;
    line-height: 2;
    font-size: 15px;
    color: #4f647d;
}

.knowledge-detail-section p + p {
    margin-top: 14px;
}

.knowledge-detail-checklist {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.knowledge-detail-checklist li {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    background: #f5f8fc;
    border: 1px solid #dfebf7;
    font-size: 13px;
    color: #4c627b;
}

.knowledge-detail-panel--footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.knowledge-detail-panel--footer p {
    margin: 12px 0 0;
    line-height: 1.9;
    font-size: 14px;
    color: #556a81;
}

.knowledge-detail-footer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
}

.knowledge-detail-footer-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.2s ease;
}

.knowledge-detail-footer-link:hover {
    transform: translateY(-2px);
}

.knowledge-detail-footer-link--primary {
    background: #1d5ea8;
    color: #fff;
}

.knowledge-detail-footer-link--secondary {
    border-color: #d7e4f4;
    background: #fff;
    color: #415770;
}

.knowledge-detail-sidebar {
    position: sticky;
    top: 84px;
}

.knowledge-detail-sidecard {
    padding: 22px 20px;
}

.knowledge-detail-sidecard + .knowledge-detail-sidecard {
    margin-top: 18px;
}

.knowledge-detail-sidecard h3 {
    margin: 0;
    line-height: 1.4;
    font-size: 18px;
    color: #1f3148;
    font-weight: 700;
}

.knowledge-detail-outline-list {
    margin-top: 16px;
}

.knowledge-detail-outline-list li {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
}

.knowledge-detail-outline-list li + li {
    margin-top: 14px;
}

.knowledge-detail-outline-list span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: #eff5fd;
    font-size: 14px;
    color: #1d5ea8;
    font-weight: 700;
}

.knowledge-detail-outline-list strong {
    display: block;
    line-height: 1.75;
    font-size: 14px;
    color: #465b74;
    font-weight: 600;
}

.knowledge-detail-related-list {
    margin-top: 16px;
}

.knowledge-detail-related-item {
    display: block;
    padding: 14px 0;
    text-decoration: none;
    border-bottom: 1px solid #edf2f8;
}

.knowledge-detail-related-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.knowledge-detail-related-item:first-child {
    padding-top: 0;
}

.knowledge-detail-related-item__tag {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    background: #eff5fd;
    font-size: 11px;
    color: #1d5ea8;
    font-weight: 700;
}

.knowledge-detail-related-item strong {
    display: block;
    margin-top: 10px;
    line-height: 1.7;
    font-size: 14px;
    color: #2b4159;
    font-weight: 600;
    transition: color 0.2s ease;
}

.knowledge-detail-related-item:hover strong {
    color: #1d5ea8;
}

.knowledge-detail-related-item em {
    display: block;
    margin-top: 8px;
    line-height: 1.5;
    font-size: 12px;
    color: #8393a7;
    font-style: normal;
}

@media (max-width: 1280px) {
    .knowledge-hero {
        grid-template-columns: 1fr;
    }

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

    .knowledge-sidebar,
    .knowledge-detail-sidebar {
        position: static;
    }

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

@media (max-width: 960px) {
    .knowledge-topic-grid {
        grid-template-columns: 1fr;
    }

    .knowledge-article {
        grid-template-columns: 92px minmax(0, 1fr);
    }

    .knowledge-article-actions {
        grid-column: 1 / -1;
        justify-content: flex-start;
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .knowledge-article-detail-link,
    .knowledge-article-link {
        width: auto;
        min-width: 160px;
        padding: 0 18px;
    }

    .knowledge-detail-panel--footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .knowledge-detail-footer-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .knowledge-page {
        padding-top: 16px;
    }

    .knowledge-hero-main {
        padding: 26px 22px;
        min-height: auto;
    }

    .knowledge-hero-copy h1 {
        font-size: 28px;
    }

    .knowledge-hero-actions {
        flex-direction: column;
    }

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

    .knowledge-toolbar {
        padding: 22px 18px;
    }

    .knowledge-toolbar-heading {
        flex-direction: column;
        align-items: flex-start;
    }

    .knowledge-article {
        grid-template-columns: 1fr;
        gap: 18px;
        padding: 18px;
    }

    .knowledge-article-date {
        min-height: 90px;
    }

    .knowledge-article-body h3 {
        font-size: 19px;
    }

    .knowledge-detail-page {
        padding-top: 16px;
    }

    .knowledge-detail-hero {
        padding: 26px 22px;
    }

    .knowledge-detail-hero h1 {
        font-size: 28px;
    }

    .knowledge-detail-meta {
        flex-direction: column;
        gap: 8px;
    }

    .knowledge-detail-panel,
    .knowledge-detail-section,
    .knowledge-detail-sidecard {
        padding: 22px 18px;
    }

    .knowledge-detail-section__heading {
        align-items: flex-start;
    }

    .knowledge-detail-section__heading h2,
    .knowledge-detail-panel h2 {
        font-size: 21px;
    }
}

.knowledge-page {
    background: #eef2f7;
    padding: 32px 0 80px;
}

.knowledge-shell {
    width: 1340px;
    max-width: calc(100% - 32px);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr) 300px;
    gap: 24px;
    align-items: start;
}

.knowledge-column-nav {
    position: sticky;
    top: 84px;
}

.knowledge-column-nav__card,
.knowledge-stream,
.knowledge-question-card {
    background: #fff;
    box-shadow: 0 14px 36px rgba(31, 49, 72, 0.06);
}

.knowledge-column-nav__card {
    padding: 14px 0;
}

.knowledge-column-nav__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.knowledge-column-nav__button {
    position: relative;
    width: 100%;
    border: 0;
    background: transparent;
    padding: 26px 34px;
    text-align: left;
    line-height: 1.2;
    font-size: 24px;
    color: #2b3440;
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.knowledge-column-nav__button::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 6px;
    background: transparent;
    transition: background-color 0.2s ease;
}

.knowledge-column-nav__button:hover,
.knowledge-column-nav__button.is-active {
    color: #2a84ff;
    background: #fbfdff;
}

.knowledge-column-nav__button:hover::before,
.knowledge-column-nav__button.is-active::before {
    background: #2a84ff;
}

.knowledge-stream {
    min-width: 0;
    padding: 0 42px 8px;
}

.knowledge-mobile-nav {
    display: none;
}

.knowledge-stream__header {
    padding: 30px 0 18px;
    border-bottom: 1px solid #edf1f6;
}

.knowledge-stream__eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: #edf4ff;
    color: #2a84ff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.knowledge-stream__header h1 {
    margin: 16px 0 10px;
    line-height: 1.2;
    font-size: 34px;
    color: #222b36;
    font-weight: 700;
}

.knowledge-stream__header p {
    margin: 0;
    line-height: 1.7;
    font-size: 15px;
    color: #8694a7;
}

.knowledge-article-listing {
    min-height: 180px;
}

.knowledge-editorial-card {
    display: flex;
    align-items: stretch;
    gap: 24px;
    min-height: 212px;
    padding: 16px 0;
    border-bottom: 1px dashed #d9e1ea;
}

.knowledge-editorial-card:last-child {
    border-bottom: 0;
}

.knowledge-editorial-card__media {
    flex: 0 0 290px;
    width: 290px;
    height: 196px;
    min-height: 196px;
    align-self: flex-start;
    display: block;
    overflow: hidden;
    border-radius: 18px;
    border: 1px solid #e6edf5;
    background: #f5f8fc;
    text-decoration: none;
}

.knowledge-editorial-card__media img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.25s ease;
}

.knowledge-editorial-card:hover .knowledge-editorial-card__media img {
    transform: scale(1.03);
}

.knowledge-editorial-card__body {
    min-width: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.knowledge-editorial-card__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.knowledge-editorial-card__category,
.knowledge-editorial-card__level {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.knowledge-editorial-card__category {
    background: #edf4ff;
    color: #2a84ff;
}

.knowledge-editorial-card__level {
    background: #f5f7fb;
    color: #6c7b8d;
}

.knowledge-editorial-card__body h2 {
    margin: 10px 0 8px;
    line-height: 1.3;
    font-size: 19px;
    color: #2a313a;
    font-weight: 700;
}

.knowledge-editorial-card__title {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.knowledge-editorial-card__title:hover {
    color: #2a84ff;
}

.knowledge-editorial-card__body p {
    margin: 0;
    line-height: 1.72;
    font-size: 14px;
    color: #8c97a6;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.knowledge-editorial-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.knowledge-editorial-card__tags span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border: 1px solid #2a84ff;
    border-radius: 8px;
    background: #fff;
    line-height: 1;
    font-size: 12px;
    color: #2a84ff;
    font-weight: 600;
}

.knowledge-editorial-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
    padding-top: 12px;
}

.knowledge-editorial-card__meta-main {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
    min-width: 0;
}

.knowledge-editorial-card__date,
.knowledge-editorial-card__stat {
    line-height: 1.5;
    font-size: 12px;
    color: #9aa5b2;
}

.knowledge-editorial-card__stat::before {
    margin-right: 4px;
    color: #bcc6d2;
}

.knowledge-editorial-card__stat--views::before {
    content: "浏览";
}

.knowledge-editorial-card__stat--likes::before {
    content: "点赞";
}

.knowledge-editorial-card__readmore {
    flex: none;
    color: #2a84ff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
}

.knowledge-editorial-card__readmore:hover {
    color: #166ce0;
}

.knowledge-side-panel {
    position: sticky;
    top: 84px;
}

.knowledge-promo-card {
    display: flex;
    flex-direction: column;
    min-height: 274px;
    padding: 28px;
    text-decoration: none;
    background:
        linear-gradient(135deg, rgba(17, 123, 92, 0.92), rgba(12, 109, 82, 0.84)),
        url('/static/images/banner3.png') center center / cover no-repeat;
    color: #fff;
    box-shadow: 0 20px 36px rgba(19, 88, 69, 0.18);
}

.knowledge-promo-card__eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    align-self: flex-start;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    font-weight: 700;
}

.knowledge-promo-card strong {
    margin-top: 16px;
    line-height: 1.2;
    font-size: 34px;
    color: #fff;
    font-weight: 700;
}

.knowledge-promo-card p {
    margin: 16px 0 0;
    line-height: 1.9;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.knowledge-promo-card__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 122px;
    height: 40px;
    margin-top: auto;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.24);
    font-size: 14px;
    font-weight: 700;
    color: #fff;
}

.knowledge-question-card {
    margin-top: 18px;
    padding: 24px 22px;
}

.knowledge-question-card h3 {
    margin: 0;
    line-height: 1.3;
    font-size: 18px;
    color: #2a313a;
    font-weight: 700;
}

.knowledge-question-card__list {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.knowledge-question-card__list li {
    position: relative;
    padding-left: 14px;
    line-height: 1.9;
    font-size: 14px;
    color: #667483;
}

.knowledge-question-card__list li + li {
    margin-top: 10px;
}

.knowledge-question-card__list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #2a84ff;
}

@media (max-width: 1360px) {
    .knowledge-shell {
        grid-template-columns: 220px minmax(0, 1fr) 280px;
        gap: 20px;
    }

    .knowledge-stream {
        padding-left: 30px;
        padding-right: 30px;
    }

    .knowledge-column-nav__button {
        padding: 24px 28px;
        font-size: 22px;
    }

    .knowledge-editorial-card {
        gap: 18px;
    }

    .knowledge-editorial-card__media {
        flex-basis: 250px;
        width: 250px;
        height: auto;
        min-height: 154px;
    }
}

@media (max-width: 1180px) {
    .knowledge-shell {
        grid-template-columns: minmax(0, 1fr) 280px;
    }

    .knowledge-column-nav {
        display: none;
    }

    .knowledge-mobile-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        padding-top: 24px;
    }

    .knowledge-mobile-nav__button {
        border: 1px solid #d9e4f0;
        border-radius: 999px;
        background: #fff;
        padding: 9px 16px;
        line-height: 1.2;
        font-size: 13px;
        color: #607081;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .knowledge-mobile-nav__button.is-active {
        border-color: #2a84ff;
        background: #2a84ff;
        color: #fff;
    }
}

@media (max-width: 960px) {
    .knowledge-shell {
        grid-template-columns: 1fr;
    }

    .knowledge-side-panel {
        position: static;
    }

    .knowledge-stream {
        order: 1;
    }

    .knowledge-side-panel {
        order: 2;
    }

    .knowledge-editorial-card {
        flex-direction: column;
    }

    .knowledge-editorial-card__media {
        width: 100%;
        flex-basis: auto;
        height: 210px;
    }

    .knowledge-editorial-card__meta {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .knowledge-page {
        padding: 16px 0 56px;
    }

    .knowledge-shell {
        max-width: calc(100% - 20px);
    }

    .knowledge-stream {
        padding: 0 18px 8px;
    }

    .knowledge-mobile-nav {
        padding-top: 18px;
    }

    .knowledge-stream__header {
        padding: 20px 0 16px;
    }

    .knowledge-stream__header h1 {
        font-size: 28px;
    }

    .knowledge-editorial-card {
        padding: 20px 0;
    }

    .knowledge-editorial-card__media {
        height: 180px;
    }

    .knowledge-editorial-card__body h2 {
        font-size: 19px;
    }

    .knowledge-editorial-card__body p {
        font-size: 14px;
    }

    .knowledge-editorial-card__tags {
        gap: 8px;
    }

    .knowledge-editorial-card__tags span {
        min-height: 30px;
        padding: 0 12px;
        font-size: 12px;
    }

    .knowledge-promo-card {
        min-height: 240px;
        padding: 24px 20px;
    }

    .knowledge-promo-card strong {
        font-size: 30px;
    }

    .knowledge-question-card {
        padding: 20px 18px;
    }
}

.knowledge-detail-page {
    background: #eef2f7;
    padding: 24px 0 72px;
}

.knowledge-detail-shell {
    width: 1340px;
    max-width: calc(100% - 32px);
    margin: 0 auto;
}

.knowledge-detail-breadcrumb {
    gap: 10px;
    margin-bottom: 18px;
    font-size: 14px;
    color: #8c97a4;
}

.knowledge-detail-breadcrumb a,
.knowledge-detail-breadcrumb strong {
    color: #596676;
}

.knowledge-detail-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 28px;
}

.knowledge-reading-article {
    background: #fff;
    box-shadow: 0 14px 36px rgba(31, 49, 72, 0.06);
}

.knowledge-reading-header {
    padding: 54px 64px 26px;
}

.knowledge-reading-header h1 {
    margin: 0;
    line-height: 1.24;
    font-size: 36px;
    color: #2a313a;
    font-weight: 700;
}

.knowledge-reading-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.knowledge-reading-tags span {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border: 1px solid #2a84ff;
    border-radius: 8px;
    background: #fff;
    line-height: 1;
    font-size: 14px;
    color: #2a84ff;
    font-weight: 600;
}

.knowledge-reading-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px 28px;
    margin-top: 28px;
    padding-bottom: 18px;
    border-bottom: 1px solid #eef2f6;
}

.knowledge-reading-meta__date,
.knowledge-reading-meta__stat {
    line-height: 1.5;
    font-size: 14px;
    color: #9aa5b2;
}

.knowledge-reading-meta__stat::before,
.knowledge-detail-related-item__stat::before {
    margin-right: 6px;
    color: #c1cad4;
}

.knowledge-reading-meta__stat--views::before,
.knowledge-detail-related-item__stat--views::before {
    content: "浏览";
}

.knowledge-reading-meta__stat--likes::before,
.knowledge-detail-related-item__stat--likes::before {
    content: "点赞";
}

.knowledge-reading-body {
    padding: 6px 64px 58px;
}

.knowledge-reading-lead,
.knowledge-reading-section p {
    margin: 0;
    line-height: 1.95;
    font-size: 16px;
    color: #262f39;
    font-weight: 500;
}

.knowledge-reading-section {
    margin-top: 34px;
}

.knowledge-reading-section__label {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.knowledge-reading-section__label span {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    height: 56px;
    padding: 0 28px;
    background: #118e5d;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    box-shadow: inset 0 -4px 0 #b5ef11;
}

.knowledge-reading-section__label span::after {
    content: "";
    position: absolute;
    right: -8px;
    top: -6px;
    width: 26px;
    height: 26px;
    background: #b5ef11;
    transform: skew(-10deg) rotate(-6deg);
}

.knowledge-reading-section p + p {
    margin-top: 18px;
}

.knowledge-reading-highlight-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.knowledge-reading-highlight-list li {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: #f6faf7;
    border: 1px solid #d2ebdc;
    font-size: 13px;
    color: #2e6d4f;
}

.knowledge-reading-section--footer {
    margin-top: 40px;
}

.knowledge-reading-section--footer p {
    color: #4c5a69;
    font-weight: 400;
}

.knowledge-detail-footer-actions {
    margin-top: 24px;
    justify-content: flex-start;
}

.knowledge-detail-footer-link {
    min-width: 158px;
    height: 46px;
    border-radius: 6px;
}

.knowledge-detail-sidebar {
    position: sticky;
    top: 84px;
}

.knowledge-detail-sidebar .knowledge-promo-card {
    min-height: 286px;
    margin-bottom: 18px;
}

.knowledge-detail-sidebar .knowledge-promo-card strong {
    font-size: 30px;
}

.knowledge-detail-sidecard--recommend {
    padding: 0;
    background: #fff;
    box-shadow: 0 14px 36px rgba(31, 49, 72, 0.06);
    border: 0;
    border-radius: 0;
}

.knowledge-detail-sidecard--recommend h3 {
    margin: 0;
    padding: 26px 28px 18px;
    border-bottom: 1px solid #e8edf3;
    line-height: 1.3;
    font-size: 18px;
    color: #2a313a;
    font-weight: 700;
    position: relative;
}

.knowledge-detail-sidecard--recommend h3::after {
    content: "";
    position: absolute;
    left: 28px;
    bottom: -1px;
    width: 72px;
    height: 3px;
    background: #2a84ff;
}

.knowledge-detail-related-list {
    margin: 0;
    padding: 4px 28px 8px;
}

.knowledge-detail-related-item {
    padding: 22px 0;
    border-bottom: 1px solid #edf1f5;
}

.knowledge-detail-related-item strong {
    margin-top: 0;
    line-height: 1.7;
    font-size: 15px;
    color: #2f3844;
    font-weight: 600;
}

.knowledge-detail-related-item__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 18px;
    margin-top: 12px;
}

.knowledge-detail-related-item em,
.knowledge-detail-related-item__stat {
    margin-top: 0;
    line-height: 1.5;
    font-size: 13px;
    color: #9aa5b2;
    font-style: normal;
}

@media (max-width: 1180px) {
    .knowledge-detail-grid {
        grid-template-columns: 1fr;
    }

    .knowledge-detail-sidebar {
        position: static;
    }
}

@media (max-width: 760px) {
    .knowledge-detail-page {
        padding: 16px 0 56px;
    }

    .knowledge-detail-shell {
        max-width: calc(100% - 20px);
    }

    .knowledge-reading-header {
        padding: 28px 22px 22px;
    }

    .knowledge-reading-header h1 {
        font-size: 28px;
    }

    .knowledge-reading-tags {
        gap: 10px;
    }

    .knowledge-reading-tags span {
        min-height: 32px;
        font-size: 13px;
    }

    .knowledge-reading-body {
        padding: 0 22px 34px;
    }

    .knowledge-reading-lead,
    .knowledge-reading-section p {
        font-size: 15px;
    }

    .knowledge-reading-section__label span {
        min-width: 150px;
        height: 50px;
        font-size: 16px;
    }
}