.blog-article {
        font-size: 18px;
        line-height: 1.75;
        color: #374151;
        overflow-wrap: break-word;
    }
    .blog-article h2 {
        font-size: 28px;
        font-weight: 800;
        color: #0b0e14;
        margin: 48px 0 20px;
        scroll-margin-top: 88px;
    }
    .blog-article h3 {
        font-size: 22px;
        font-weight: 700;
        color: #0b0e14;
        margin: 36px 0 16px;
        scroll-margin-top: 88px;
    }
    .blog-article [id^="section-"] {
        scroll-margin-top: 88px;
    }
    .blog-article p {
        margin: 0 0 16px;
    }
    .blog-article .text-size-sm { font-size: .88rem; }
    .blog-article .text-size-lg { font-size: 1.25rem; }
    .blog-article .text-size-xl { font-size: 1.55rem; }
    .blog-article .font-serif { font-family: Georgia, "Times New Roman", serif; }
    .blog-article .font-song { font-family: "Songti SC", "STSong", "SimSun", serif; }
    .blog-article .line-compact { line-height: 1.45; }
    .blog-article .line-relaxed { line-height: 2.1; }
    .blog-article p.paragraph-compact, .blog-article blockquote.paragraph-compact, .blog-article h2.paragraph-compact, .blog-article h3.paragraph-compact, .blog-article h4.paragraph-compact { margin-bottom: .5em; }
    .blog-article p.paragraph-relaxed, .blog-article blockquote.paragraph-relaxed, .blog-article h2.paragraph-relaxed, .blog-article h3.paragraph-relaxed, .blog-article h4.paragraph-relaxed { margin-bottom: 1.8em; }
    .blog-article img {
        display: block;
        max-width: 100%;
        height: auto;
        margin: 24px auto;
        border-radius: 14px;
    }
    .blog-article ul, .blog-article ol {
        margin: 0 0 20px;
        padding-left: 24px;
    }
    .blog-article li {
        margin-bottom: 8px;
    }
    .blog-article strong,
    .blog-article b {
        font-weight: 700;
        color: #0b0e14;
    }
    .blog-article blockquote {
        background: #f9fafb;
        border-left: 4px solid #2a7c5f;
        padding: 20px 24px;
        margin: 24px 0;
        border-radius: 0 8px 8px 0;
    }

    .knowledge-public-summary {
        margin: 0 0 28px;
        padding: 20px 24px;
        border-left: 4px solid #2a7c5f;
        border-radius: 0 12px 12px 0;
        background: #f1f8f5;
        color: #23483b;
        font-size: 18px;
        font-weight: 650;
        line-height: 1.75;
    }

    .knowledge-excerpt-ellipsis {
        color: #6b7280;
        font-size: 24px;
        font-weight: 800;
        letter-spacing: .2em;
    }

    .knowledge-full-access {
        margin-top: 40px;
        padding: 28px;
        border: 1px solid #cfd8ff;
        border-radius: 18px;
        background: #f5f7ff;
        color: #1f2937;
        text-align: center;
    }

    .knowledge-full-access h2 {
        margin: 0 0 10px;
        color: #0b0e14;
        font-size: 24px;
        line-height: 1.3;
    }

    .knowledge-full-access p {
        margin: 0 0 20px;
        line-height: 1.65;
    }

    .knowledge-full-access-link {
        display: inline-block;
        padding: 12px 22px;
        border-radius: 999px;
        background: #3156dd;
        color: #fff;
        font-weight: 800;
        text-decoration: none;
    }

    .knowledge-full-access-link:hover {
        background: #2748c4;
    }

    .knowledge-full-access-link:focus-visible {
        outline: 3px solid rgba(49, 86, 221, .35);
        outline-offset: 3px;
    }
    .blog-article table {
        display: block;
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        -webkit-overflow-scrolling: touch;
        border-collapse: collapse;
        margin: 24px 0;
    }
    .blog-article th, .blog-article td {
        padding: 12px;
        border: 1px solid #e5e7eb;
        text-align: left;
    }
    .blog-article th {
        background: #f9fafb;
        font-weight: 700;
    }
    .blog-article .table-scroll {
        max-width: 100%;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        -webkit-overflow-scrolling: touch;
    }
    .blog-article .table-scroll table {
        min-width: 36rem;
    }
    .blog-article a[href] {
        color: #1769aa;
        text-decoration: underline;
        text-decoration-thickness: .09em;
        text-underline-offset: .16em;
        overflow-wrap: anywhere;
    }
    .blog-article a[href]:hover {
        color: #0f548a;
        text-decoration-thickness: .13em;
    }
    .blog-article a[href]:focus-visible {
        outline: 3px solid rgba(23, 105, 170, .28);
        outline-offset: 2px;
        border-radius: 2px;
    }

    .blog-detail-category-badge {
        display: inline-block;
        padding: 3px 10px;
        border-radius: 999px;
        background: #eff6ff;
        color: #1d4ed8;
        font-size: 12px;
        font-weight: 800;
    }

    .blog-detail-title {
        color: #0b0e14;
        font-size: 56px;
        font-weight: 900;
        line-height: 1.1;
        margin: 0 0 32px;
    }

    .blog-detail-cover {
        aspect-ratio: 16 / 9;
        background: #f4f5f6;
        border-radius: 24px;
        box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        margin-bottom: 60px;
        overflow: hidden;
        width: 100%;
    }

    .blog-detail-cover-img {
        display: block;
        height: 100%;
        object-fit: cover;
        width: 100%;
    }

    .blog-related-title {
        color: #0b0e14;
        font-size: 28px;
        font-weight: 900;
        line-height: 1.2;
        margin: 0 0 32px;
    }

    .blog-related-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 24px;
        padding: 0;
        text-align: left;
    }

    .blog-related-card {
        color: inherit;
        min-width: 0;
        text-decoration: none;
    }

    .blog-related-image {
        aspect-ratio: 4 / 3;
        background: #f4f5f6;
        border-radius: 12px;
        margin-bottom: 14px;
        overflow: hidden;
        position: relative;
    }

    .blog-related-image img {
        display: block;
        height: 100%;
        object-fit: cover;
        width: 100%;
    }

    .blog-related-category {
        position: absolute;
        top: 10px;
        left: 10px;
        padding: 4px 10px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.94);
        color: #1d4ed8;
        font-size: 11px;
        font-weight: 700;
    }

    .blog-related-card h3 {
        color: #0b0e14;
        font-size: 16px;
        font-weight: 800;
        line-height: 1.35;
        margin: 0 0 6px;
    }

    .blog-related-meta {
        font-size: 13px;
        color: #6b7280;
        margin: 0;
    }

    .blog-share-action {
        margin-top: 20px;
        padding: 10px 18px;
        border: 1px solid #3861fb;
        border-radius: 999px;
        background: #fff;
        color: #3156dd;
        font-size: 14px;
        font-weight: 800;
        cursor: pointer;
    }
    .blog-share-action:hover { background: #f3f6ff; }

    /* Table of Contents */
    .blog-toc-nav {
        margin: 28px 0 36px;
        padding: 20px 24px;
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        border-left: 4px solid #3861fb;
        border-radius: 0 12px 12px 0;
    }
    .blog-toc-header {
        display: flex;
        align-items: center;
        margin-bottom: 12px;
    }
    .blog-toc-title {
        font-size: 15px;
        font-weight: 700;
        color: #1e293b;
        display: flex;
        align-items: center;
    }
    .blog-toc-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .blog-toc-item a {
        color: #475569;
        text-decoration: none;
        font-size: 14px;
        line-height: 1.5;
        transition: color 0.15s ease;
    }
    .blog-toc-item a:hover,
    .blog-toc-item.active > a,
    .blog-toc-item a.active {
        color: #2563eb;
        font-weight: 700;
        text-decoration: underline;
    }
    .blog-toc-level-3 {
        padding-left: 18px;
        font-size: 13px;
    }

    /* Tag Pills */
    .blog-detail-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin: 36px 0 24px;
        padding-top: 20px;
        border-top: 1px solid #f1f5f9;
    }
    .blog-tag-pill {
        display: inline-flex;
        align-items: center;
        padding: 5px 14px;
        border-radius: 9999px;
        background: #f1f5f9;
        color: #475569;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
        transition: all 0.15s ease;
    }
    .blog-tag-pill:hover {
        background: #e2e8f0;
        color: #1e293b;
    }

    @media (max-width: 640px) {
        .blog-article {
            font-size: 16px;
            line-height: 1.75;
            overflow-wrap: break-word;
            word-break: break-word;
        }

        .blog-article h2 {
            font-size: 22px;
            margin: 32px 0 14px;
        }

        .blog-article h3 {
            font-size: 18px;
            margin: 24px 0 12px;
        }

        .blog-article th, .blog-article td {
            padding: 8px 10px;
            font-size: 14px;
        }

        .blog-detail-title {
            font-size: 32px;
            line-height: 1.2;
            margin-bottom: 24px;
        }

        .blog-related-title {
            font-size: 24px;
            margin-bottom: 24px;
        }

        .blog-related-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
    }

    @media (max-width: 360px) {
        .blog-detail-title {
            font-size: 28px;
        }
    }