/* 文章内容卡片 */
        .article-card {
            background: #fff;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }

        /* 文章标题 */
        .article-title {
            font-size: 28px;
            color: #222;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        /* 文章信息 */
        .article-meta {
            color: #888;
            font-size: 14px;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        .article-meta span {
            margin-right: 16px;
        }

        /* 正文通用样式 */
        .article-content {
            font-size: 17px;
            color: #444;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 22px;
            color: #222;
            margin: 36px 0 16px;
            padding-left: 10px;
            border-left: 4px solid #4472c4;
        }
        .article-content img {
            max-width: 100%;
            border-radius: 8px;
            margin: 10px 0 20px;
        }
        .article-content blockquote {
            background: #f2f7ff;
            border-left: 4px solid #4472c4;
            padding: 16px 20px;
            margin: 0 0 24px;
            color: #555;
        }

        /* 返回按钮 */
        .back-home {
            display: inline-block;
            margin-top: 40px;
            color: #4472c4;
            text-decoration: none;
            font-size: 15px;
        }
        .back-home:hover {
            text-decoration: underline;
        }

        /* 移动端适配 */
        @media (max-width: 600px) {
            .banner { height: 280px; }
            .banner-text h1 { font-size: 26px; }
            .container { margin-top: -30px; }
            .article-card { padding: 24px; }
            .article-title { font-size: 24px; }
        }