/* 两栏布局样式 */
        .blog-detail-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 2.5rem;
            align-items: start;
        }

        /* 左侧文章容器 */
        .article-main {
            background: #fff;
            border-radius: 28px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.03);
            overflow: hidden;
            padding: 2rem 2rem 2rem;
        }

        /* 右侧边栏共用样式 */
        .blog-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        /* 相关阅读板块 ———— 缩略图明显放大 */
        .related-side-card {
            background: #ffffff;
            border-radius: 24px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.03);
            padding: 1.5rem 1.2rem;
            border: 1px solid #f0f2f5;
        }

        .related-side-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            padding-left: 0.8rem;
            border-left: 4px solid #CC2936;
            color: #0f172a;
        }

        .related-side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .related-side-item {
            display: flex;
            gap: 16px;
            margin-bottom: 1.4rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #edf2f7;
            align-items: flex-start;
        }
        .related-side-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        /* 明显放大的缩略图 (120x88) */
        .related-side-img {
            width: 120px;
            height: 88px;
            object-fit: cover;

            flex-shrink: 0;
            background: #eef2ff;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
        }

        .related-side-info {
            flex: 1;
        }
        .related-side-info a {
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.4;
            color: #1e293b;
            text-decoration: none;
            transition: color 0.2s;
            display: block;
        }
        .related-side-info a:hover {
            color: #CC2936;
        }
        .related-side-date {
            font-size: 0.7rem;
            color: #6c757d;
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* 上一篇/下一篇导航 (现在位于左侧文章底部) */
        .post-nav-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #eef2f6;
            background: transparent;
        }
        .post-nav-bottom .post-nav-title {
            font-weight: 700;
            font-size: 1rem;
            color: #334155;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .post-nav-bottom .post-nav-title i {
            color: #CC2936;
        }
        .post-nav-bottom .nav-links {
            display: flex;
            flex-direction: row;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .post-nav-bottom .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #f8fafc;
            padding: 0.7rem 1.2rem;
            border-radius: 20px;
            transition: all 0.2s;
            text-decoration: none;
            color: #1e293b;
            flex: 1;
            min-width: 200px;
        }
        .post-nav-bottom .nav-link:hover {
            background: #fff0f0;
            transform: translateX(4px);
        }
        .post-nav-bottom .nav-link i {
            font-size: 1rem;
            color: #CC2936;
        }
        .post-nav-bottom .nav-text {
            flex: 1;
            font-weight: 500;
            font-size: 0.85rem;
            line-height: 1.3;
        }
        .post-nav-bottom .nav-direction {
            font-size: 0.7rem;
            font-weight: normal;
            color: #5b6e8c;
            display: block;
        }
        /* 右侧边栏中不再保留 post-nav，只保留 related + contact */

        /* 文章内部样式 */
        .article-header {
       
            border-bottom: 1px solid #eef2f6;
            padding-bottom: 1.2rem;
        }
        .article-category {
            display: inline-block;
            background: #CC2936;
            color: white;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 1rem;
            border-radius: 30px;
            margin-bottom: 1rem;
        }
        .article-title {
            font-size: 2rem;
            line-height: 1.3;
            font-weight: 700;
            color: #0f172a;
            margin: 0.5rem 0 0.8rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            align-items: center;
            color: #5b6e8c;
            font-size: 0.85rem;
        }
        .featured-image {
            margin: 1.5rem 0 2rem;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            display: block;
        }
        .article-content {
            font-size: 1rem;
            line-height: 1.7;
            color: #1e293b;
        }
        .article-content h2 {
            font-size: 1.6rem;
            margin: 1.8rem 0 1rem;
            font-weight: 600;
        }
        .tip-box {
            background: #fef9e6;
            border-left: 5px solid #CC2936;
            padding: 1rem 1.5rem;
            margin: 1.8rem 0;
            border-radius: 20px;
        }

        /* 响应式 */
        @media (max-width: 880px) {
            .blog-detail-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .blog-sidebar {
                position: static;
                margin-top: 0;
            }
            .article-main {
                padding: 1.5rem;
            }
            .article-title {
                font-size: 1.7rem;
            }
            .related-side-img {
                width: 100px;
                height: 75px;
            }
            .post-nav-bottom .nav-links {
                flex-direction: column;
            }
            .post-nav-bottom .nav-link {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .related-side-img {
                width: 85px;
                height: 70px;
            }
        }