/* 无全局重置，无 body 样式，所有样式限定在 .article-card 内 */
        .article-card {
            max-width: 860px;
            margin: 2rem auto;
            background: #ffffff;
            border: 1px solid #eaeaea;   /* 极浅灰边框 */
            padding: 3rem 2.5rem;
            font-family: '微软雅黑', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            color: #111111;
            line-height: 1.7;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.02); /* 极淡阴影，增加层次感，不改变黑白本质 */
        }

        /* ---------- 标题：居中，加粗，精致下划线 ---------- */
        .article-title {
padding-top:30px;
            font-size: 2rem;
            font-weight: 600;
            line-height: 1.3;
            text-align: center;
            margin: 0 0 0.8rem 0;
            color: #000000;
            letter-spacing: -0.01em;
            position: relative;
            padding-bottom: 0.8rem;
        }

        /* ---------- 元信息行：全部居中，优雅分隔 ---------- */
        .meta-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 0.8rem 1.2rem;
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
            color: #444444;
            border-bottom: 1px solid #dddddd;
            padding-bottom: 1.2rem;
        }

        .meta-info {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 0.6rem 0.8rem;
        }

        .meta-info span {
            color: #2b2b2b;
        }

        .separator {
            color: #aaaaaa;
            font-weight: 300;
            font-size: 0.9rem;
        }

        .view-count-placeholder {
            font-weight: 500;
            color: #000000;
            background: #f2f2f2;        /* 极浅灰背景，轻微强调浏览次数 */
            padding: 0.1rem 0.4rem;
            border-radius: 2px;
        }

        /* 功能按钮组：与元信息在同一行居中 */
        .action-group {
            display: flex;
            gap: 0.5rem;
        }

        .action-btn {
            background: transparent;
            border: none;
            padding: 0.2rem 0.8rem;
            font-size: 0.95rem;
            color: #1a1a1a;
            cursor: pointer;
            transition: all 0.15s;
            border: 1px solid #dddddd;    /* 极淡边框，让按钮有实体感，又不抢眼 */
            border-radius: 20px;           /* 圆角柔和 */
            line-height: 1.4;
            font-family: inherit;
        }

        .action-btn:hover {
            background-color: #f0f0f0;
            border-color: #aaaaaa;
            color: #000000;
        }

        .action-btn:active {
            background-color: #e0e0e0;
        }

        /* ---------- 正文内容：精细排版 ---------- */
        .content-body {
            color: #1e1e1e;
            font-size: 1.05rem;
            margin-bottom: 3rem;
        }

        /* 段落样式：舒适间距，适当缩进，灰度适中 */
        .content-body p {
            margin-bottom: 1.4rem;
            text-align: justify;
            line-height: 1.8;
            color: #2c2c2c;
            text-indent: 2em;            /* 首行缩进2字符，传统文章排版 */
        }

        /* 标题类（如果后台内容带章节标题） */
        .content-body .chapter-title {
            font-size: 1.6rem;
            font-weight: 600;
            margin: 2.2rem 0 1.2rem 0;
            color: #000000;
            padding-left: 1.2rem;
            text-indent: 0;               /* 标题取消缩进 */
        }

        .content-body .chapter-sub {
            font-size: 1.3rem;
            font-weight: 500;
            margin: 1.8rem 0 1rem 0;
            color: #222222;
            text-indent: 0;
        }

        /* 引用、注释块 */
        .legal-note {
            font-size: 0.95rem;
            color: #555555;
            background-color: #f9f9f9;
            padding: 1rem 1.8rem;
            border-left: 4px solid #888888;
            margin: 2rem 0;
            line-height: 1.7;
            text-indent: 0;
        }

        .content-body strong {
            color: #000000;
            font-weight: 600;
        }

        /* ---------- 附件区域：干净清爽 ---------- */
        .attachment-section {
            margin: 2.8rem 0 2.2rem 0;
            border: 1px solid #dadada;
            background-color: #fdfdfd;
            padding: 1.8rem 2rem;
        }

        .attachment-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #000000;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .attachment-title span {
            font-size: 0.85rem;
            font-weight: 400;
            color: #666666;
            background: #eeeeee;
            padding: 0.2rem 0.7rem;
            letter-spacing: 0.3px;
        }

        .attachment-placeholder {
            font-family: 'Courier New', monospace;
            background-color: #f3f3f3;
            padding: 0.8rem 1.2rem;
            border-left: 4px solid #888888;
            color: #333333;
            word-break: break-word;
            font-size: 0.95rem;
        }

        /* ---------- 上下条导航：简洁有力 ---------- */
        .pager-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-top: 2.5rem;
            border-top: 2px solid #222222;
            padding-top: 2rem;
            gap: 2rem;
        }

        .pager-item {
            flex: 1 1 200px;
            display: flex;
            flex-direction: column;
        }

        .pager-item.prev {
            align-items: flex-start;
        }

        .pager-item.next {
            align-items: flex-end;
        }

        .pager-label {
            font-size: 0.85rem;
            color: #777777;
            letter-spacing: 0.5px;
            margin-bottom: 0.3rem;
            text-transform: uppercase;
        }

        .pager-link-placeholder {
            font-size: 1.2rem;
            font-weight: 500;
            color: #000000;
            text-decoration: none;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
            line-height: 1.4;
        }
        .pager-link-placeholder:hover {
            border-bottom-color: #000000;
        }