.article-page-container { max-width: 1400px; margin: 40px auto 40px; padding: 0 40px; display: flex; gap: 40px; align-items: flex-start; }
        
        /* 防塌陷修正 */
        .article-main-content { 
            flex: 1 1 auto; /* 💥 关键修复 1：从 flex: 1 改为 1 1 auto，防止高度归零 */
            min-width: 0; 
            background: #fff; 
            padding: 40px 40px; 
            border-radius: 16px; 
            border: 1px solid var(--border); 
            box-shadow: 0 8px 25px rgba(15, 23, 42, 0.02); 
        }
        
        .article-header { margin-bottom: 35px; border-bottom: 1px solid var(--border-light); padding-bottom: 25px;}
        .article-cat { font-size: 0.8rem; font-weight: 800; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px; display: inline-block;}
        .article-title { font-size: 2.4rem; font-weight: 900; line-height: 1.25; color: var(--primary); margin-bottom: 15px;}
        .article-meta { font-size: 0.9rem; color: var(--text-muted); display: flex; gap: 20px; font-weight: 500;}

        /* HTML 正文排版防爆边界逻辑 */
        .seo-html-body { 
            font-size: 1.05rem; 
            line-height: 1.75; 
            color: #334155; 
            word-wrap: break-word; 
            overflow-wrap: break-word; 
            word-break: break-word; 
            max-width: 100%; 
            overflow-x: hidden; 
        }
        /* 💥 修复版：强制消除正文第一个元素的顶部外边距，完美解决间距过大 */
        .seo-html-body > *:first-child { margin-top: 0 !important; }
        .seo-html-body h2 { font-size: 1.7rem; font-weight: 800; color: var(--primary); margin: 35px 0 15px 0;}
        .seo-html-body h3 { font-size: 1.35rem; font-weight: 700; color: var(--text-dark); margin: 25px 0 12px 0;}
        .seo-html-body p { margin-bottom: 20px; }
        .seo-html-body ul, .seo-html-body ol { margin-bottom: 20px; padding-left: 20px; }
        .seo-html-body li { margin-bottom: 8px; }
        
        .seo-html-body img, .seo-html-body video, .seo-html-body iframe { max-width: 100% !important; height: auto !important; }
        
        /* 💥 修复版：表格自适应拉伸，彻底消除右侧空白假列 */
        .seo-html-body table { 
            width: 100%; 
            border-collapse: collapse; 
            margin: 25px 0; 
            font-size: 0.95rem; 
            display: table; /* 关键修复：恢复表格的原生布局逻辑 */
            table-layout: auto; 
        }
        .seo-html-body th, .seo-html-body td { 
            padding: 12px 15px; 
            border: 1px solid var(--border); 
            word-break: break-word; /* 关键修复：允许长单词或化学式在格子里换行，绝不撑爆屏幕 */
            overflow-wrap: break-word;
        }
        .seo-html-body th { 
            background-color: var(--bg-body); 
            color: var(--primary); 
            font-weight: 800; 
            text-align: left; 
        }

        .content-inline-img { max-width: 32%; height: auto; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,0.06); margin-bottom: 15px; margin-top: 10px; }
        .content-inline-img.right { float: right; margin-left: 25px; }
        .seo-html-body::after { content: ""; display: table; clear: both; }

        /* 侧边栏 */
        .article-sidebar { flex: 0 0 310px; position: sticky; top: 110px; }
        .promo-card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 25px; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04); text-align: center; }
        .promo-label { font-size: 0.75rem; background: var(--text-dark); color: #fff; padding: 4px 10px; border-radius: 20px; font-weight: 700; text-transform: uppercase; margin-bottom: 20px; display: inline-block;}
        .promo-img { width: 100%; height: 160px; display: flex; align-items: center; justify-content: center; margin-bottom: 15px; mix-blend-mode: multiply;}
        .promo-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
        .promo-title { font-size: 1.25rem; font-weight: 800; color: var(--primary); margin-bottom: 8px;}
        .promo-desc { font-size: 0.9rem; color: var(--text-main); line-height: 1.5; margin-bottom: 20px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;}
        
        .btn-sidebar-view { display: block; background: var(--bg-body); color: var(--primary); padding: 12px 20px; border-radius: 8px; font-weight: 800; border: 1px solid var(--border); margin-bottom: 12px; transition: 0.3s; font-size: 0.95rem;}
        .btn-sidebar-view:hover { background: var(--border-light); }
        .btn-sidebar-quote { display: block; background: var(--accent-blue); color: #fff; padding: 12px 20px; border-radius: 8px; font-weight: 800; transition: 0.3s; font-size: 0.95rem;}
        .btn-sidebar-quote:hover { background: #1d4ed8; transform: translateY(-2px);}

        /* 💥 相关文章滑动模块的 CSS */
        .related-articles-section { max-width: 1400px; margin: 0 auto 90px; padding: 0 40px; position: relative; }
        .section-title-center { text-align: center; margin-bottom: 45px; }
        .section-title-center h2 { font-size: 2.2rem; font-weight: 900; color: var(--primary); margin-bottom: 12px; letter-spacing: -0.02em;}
        .section-title-center p { font-size: 1.05rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }
        
        .article-slider-wrapper { overflow: hidden; position: relative; margin: 0 -10px; padding: 10px; }
        .article-slider-track { display: flex; gap: 25px; transition: transform 0.4s ease; }
        .article-slider-item { flex: 0 0 calc((100% - 50px) / 3); background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 24px; box-shadow: 0 8px 20px rgba(15, 23, 42, 0.02); display: flex; flex-direction: column; transition: 0.3s;}
        .article-slider-item:hover { transform: translateY(-4px); box-shadow: 0 15px 30px rgba(15, 23, 42, 0.05); }
        .cat-label { font-size: 0.75rem; font-weight: 800; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; display: block;}
        .article-slider-item h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; line-height: 1.35; color: var(--primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; height: 3.1rem;}
        .article-slider-item .card-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 20px;}
        .view-link { font-weight: 800; color: var(--accent-blue); font-size: 0.9rem; margin-top: auto; display: flex; align-items: center;}
        
        .slider-arrow { position: absolute; top: 55%; transform: translateY(-50%); width: 44px; height: 44px; background: #fff; border: 1px solid var(--border); color: var(--primary); border-radius: 50%; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 10; box-shadow: 0 6px 15px rgba(0,0,0,0.05); transition: 0.2s; }
        .slider-arrow:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
        .arrow-prev { left: 0; }
        .arrow-next { right: 0; }

        @media (max-width: 1150px) {
            .article-page-container { flex-direction: column; gap: 30px; }
            .article-main-content { width: 100%; flex: none; } /* 💥 关键修复 2：变成上下布局时，彻底解除 Flex 高度束缚 */
            .article-sidebar { position: static; width: 100%; max-width: 500px; margin: 0 auto;}
            .content-inline-img.right { float: none; display: block; margin: 0 auto 25px; max-width: 60%; }
        }
        @media (max-width: 1024px) {
            .article-slider-item { flex: 0 0 calc((100% - 25px) / 2); }
        }
        @media (max-width: 768px) {
            .article-page-container, .related-articles-section { padding: 0 24px; }
            .article-main-content { padding: 30px 20px; }
            .content-inline-img.right { max-width: 100%; }
            .article-slider-item { flex: 0 0 100%; }
            .slider-arrow { display: none; }
            .article-slider-track { flex-direction: column; gap: 20px; }
        }
        /* ====================== BLOCKQUOTE 竖线美化 ====================== */
.seo-html-body blockquote {
    border-left: 5px solid var(--accent-cyan);     /* 你主题的青色竖线 */
    background: var(--accent-light);               /* 浅蓝背景，更显眼 */
    padding: 18px 25px;
    margin: 28px 0;
    font-style: italic;
    color: var(--text-dark);
    border-radius: 0 8px 8px 0;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.08);
}