.topics-widget {
    margin-top: 28px;
}

.topics-widget.library-accordion {
    margin-bottom: 32px;
}

.topics-widget .accordion-head {
    padding: 0 0 16px 0;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.topics-widget .accordion-head:hover {
    background: transparent;
}

.topics-widget .acc-title.topics-widget-title {
    margin: 0;
    font-size: 0.64rem;
    gap: 8px;
}

.topics-widget .acc-title svg {
    color: var(--accent);
    flex-shrink: 0;
}

.topics-widget .accordion-content {
    padding: 16px 0 0 0;
}

.topics-widget-title {
    font-family: var(--font-sans);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.topics-search-wrap {
    position: relative;
    margin-bottom: 20px;
}

.topics-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    opacity: 0.5;
    pointer-events: none;
}

.topics-search-input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: all 0.3s ease;
}

.topics-search-input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
    font-size: 0.8rem;
}

.topics-search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(196, 154, 42, 0.1);
}

.topics-category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.topics-expand-wrap {
    display: flex;
    justify-content: center;
    margin-top: 16px;
    margin-bottom: 8px;
}

.topics-expand-btn {
    background: transparent;
    border: 1px solid var(--border-strong);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.topics-expand-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent);
}

.topics-category-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.topics-category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.topics-category-card:hover,
.topics-category-card:focus {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.topics-category-card:hover::before,
.topics-category-card:focus::before {
    opacity: 1;
}

.topics-cat-meta {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 12px 14px 16px;
    width: 100%;
}

.topics-cat-img-wrap {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border);
}

.topics-cat-lazy-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.topics-category-card:hover .topics-cat-lazy-img {
    transform: scale(1.05);
}

.topics-list-header-img img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.topics-detail-cat-img {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    vertical-align: middle;
    margin-right: 6px;
    margin-top: -2px;
}

.topics-cat-name {
    font-family: var(--font-serif);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.25;
}

.topics-cat-count {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}

.topics-cat-desc {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.4;
    display: none;
}

.topics-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    margin-bottom: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.25s ease;
}

.topics-back-btn:hover {
    color: var(--accent);
    border-color: var(--accent-border);
}

.topics-list-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.topics-list-header h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.topics-topic-card {
    display: block;
    width: 100%;
    text-align: left;
    padding: 14px 16px;
    margin-bottom: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
}

.topics-topic-card:hover,
.topics-topic-card:focus {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-sm);
}

.topics-topic-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}

.topics-topic-name {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.topics-topic-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.topics-tag {
    padding: 2px 8px;
    background: var(--accent-soft);
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

.topics-topic-summary {
    font-family: var(--font-serif);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.topics-detail-header {
    margin-bottom: 20px;
}

.topics-detail-cat {
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    display: block;
    margin-bottom: 6px;
}

.topics-detail-title {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 10px;
}

.topics-detail-def {
    font-family: var(--font-serif);
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.topics-takeaway {
    display: flex;
    gap: 12px;
    padding: 16px;
    margin-bottom: 24px;
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
}

.topics-takeaway-icon {
    flex-shrink: 0;
    color: var(--accent);
    padding-top: 2px;
}

.topics-takeaway p {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.6;
    font-style: italic;
}

.topics-section-title {
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.topics-passages-section {
    margin-bottom: 24px;
}

.topics-passage-card {
    padding: 12px 14px;
    margin-bottom: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.25s ease;
}

.topics-passage-card:hover {
    border-color: var(--accent-border);
}

.topics-passage-ref {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 4px;
}

.topics-passage-reason {
    font-family: var(--font-serif);
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    font-style: italic;
}

.topics-study-summary {
    margin-bottom: 24px;
}

.topics-study-summary p {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.topics-misuse-section {
    margin-bottom: 24px;
}

.topics-misuse-card {
    padding: 12px 14px;
    margin-bottom: 6px;
    background: rgba(196, 100, 42, 0.06);
    border: 1px solid rgba(196, 100, 42, 0.15);
    border-radius: var(--radius-sm);
    border-left: 3px solid rgba(196, 100, 42, 0.5);
}

.topics-misuse-ref {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.topics-misuse-caution {
    font-family: var(--font-serif);
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.topics-related-section {
    margin-bottom: 24px;
}

.topics-related-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.topics-related-chip {
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
}

.topics-related-chip:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-soft);
}

.topics-search-results {
    margin-bottom: 16px;
}

.topics-results-label {
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.topics-no-results {
    text-align: center;
    padding: 32px 16px;
    font-family: var(--font-serif);
    font-size: 0.92rem;
    color: var(--text-muted);
    font-style: italic;
}

.topics-action-plan {
    margin: 28px 0;
    padding: 20px;
    background: rgba(196, 154, 42, 0.03);
    border: 1px solid rgba(196, 154, 42, 0.12);
    border-radius: var(--radius-lg, 16px);
}

.topics-ap-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(196, 154, 42, 0.15);
}

.topics-ap-header svg {
    color: var(--accent-light, #c49a2a);
    flex-shrink: 0;
}

.topics-ap-header h3 {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent-light, #c49a2a);
    margin: 0;
}

.topics-ap-root,
.topics-ap-myths,
.topics-ap-danger,
.topics-ap-rule,
.topics-ap-steps,
.topics-ap-expect {
    margin-bottom: 18px;
}

.topics-ap-root-label,
.topics-ap-myths-label,
.topics-ap-danger-label,
.topics-ap-rule-label,
.topics-ap-steps-label,
.topics-ap-expect-label {
    font-family: var(--font-sans);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.topics-ap-root p,
.topics-ap-danger p,
.topics-ap-rule p,
.topics-ap-expect p {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.topics-ap-myth-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.topics-ap-myth-list li {
    padding: 8px 12px;
    background: rgba(180, 80, 80, 0.06);
    border: 1px solid rgba(180, 80, 80, 0.12);
    border-left: 3px solid rgba(180, 80, 80, 0.4);
    border-radius: var(--radius-sm, 8px);
    font-family: var(--font-serif);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 600px) {
    .topics-category-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .topics-cat-meta {
        padding: 10px 10px 14px;
    }

    .topics-cat-name {
        font-size: 0.82rem;
    }

    .topics-detail-title {
        font-size: 1.3rem;
    }

    .topics-search-input {
        font-size: 0.82rem;
        padding: 10px 14px 10px 36px;
    }
}

@media (min-width: 768px) {
    .topics-category-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .topics-cat-desc {
        display: block;
    }
}