/* ===== 帮助中心布局（自包含，不依赖 console sidebar）===== */
    .help-page { background: #fff; min-height: 70vh; }
    .help-layout { display: flex; max-width: 1200px; margin: 0 auto; padding: 20px 16px 40px; gap: 28px; align-items: flex-start; }

    /* 移动端顶部工具条（默认只在移动端显示） */
    .help-toolbar { display: none; }

    /* 侧边栏 */
    .help-sidebar { width: 240px; flex: 0 0 240px; }
    .help-sidebar-inner { position: sticky; top: 16px; background: #fbfcfe; border: 1px solid #eef1f6; border-radius: 12px; padding: 14px 12px; max-height: calc(100vh - 32px); overflow-y: auto; }
    .help-sidebar .hdm-home { display: flex; align-items: center; gap: 6px; font-weight: 600; color: #233049; padding: 8px 10px 14px; border-bottom: 1px solid #eef1f6; margin-bottom: 10px; text-decoration: none; }
    .help-sidebar .hdm-cats { list-style: none; margin: 0; padding: 0; }
    .help-sidebar .hdm-cat-li { margin-bottom: 6px; }
    .help-sidebar .hdm-cat-title { font-size: 13px; font-weight: 600; color: #6b7280; padding: 8px 10px 4px; letter-spacing: .3px; }
    .help-sidebar .hdm-cat-title.active { color: #4f7cff; }
    .help-sidebar .hdm-menu { list-style: none; margin: 0; padding: 0; }
    .help-sidebar .hdm-item { margin: 0; }
    .help-sidebar .hdm-link { display: block; padding: 7px 12px; font-size: 14px; color: #4a5568; border-radius: 8px; text-decoration: none; line-height: 1.4; }
    .help-sidebar .hdm-link:hover { background: #eef3ff; color: #4f7cff; }
    .help-sidebar .hdm-link.active { background: #e6eeff; color: #4f7cff; font-weight: 600; }
    .help-sidebar-mask { display: none; }

    /* 正文 */
    .help-main { flex: 1; min-width: 0; }
    .help-main .hdm-breadcrumb { font-size: 13px; color: #909399; margin-bottom: 14px; }
    .help-content { font-size: 15px; line-height: 1.85; color: #2b3442; max-width: 860px; word-break: break-word; }
    .help-content h1 { font-size: 1.7rem; color: #1f2430; margin: 0 0 16px; padding-bottom: 12px; border-bottom: 1px solid #eef1f6; }
    .help-content h2 { font-size: 1.28rem; color: #233049; margin: 28px 0 12px; }
    .help-content h3 { font-size: 1.1rem; color: #34405a; margin: 22px 0 10px; }
    .help-content p { margin: 10px 0; }
    .help-content ul, .help-content ol { padding-left: 22px; margin: 10px 0; }
    .help-content li { margin: 4px 0; }
    .help-content a { color: #4f7cff; }
    .help-content blockquote { margin: 14px 0; padding: 10px 16px; border-left: 4px solid #4f7cff; background: #f3f6ff; border-radius: 0 8px 8px 0; color: #4a5a78; }
    .help-content table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 14px; }
    .help-content th, .help-content td { border: 1px solid #e3e7ef; padding: 8px 12px; text-align: left; }
    .help-content th { background: #f6f8fc; color: #233049; font-weight: 600; }
    .help-content tr:nth-child(even) td { background: #fafbfd; }
    .help-content code { background: #f0f2f6; padding: 2px 6px; border-radius: 4px; font-size: 13px; color: #d6336c; }
    .help-content pre { background: #0f172a; padding: 14px 16px; border-radius: 10px; overflow-x: auto; line-height: 1.6; }
    .help-content pre code { background: transparent; color: #e2e8f0; padding: 0; font-size: 13px; }
    .help-content img { max-width: 100%; border-radius: 8px; }

    /* 上一篇 / 下一篇 */
    .help-prev-next { display: flex; justify-content: space-between; gap: 12px; margin-top: 36px; padding-top: 18px; border-top: 1px solid #eef1f6; flex-wrap: wrap; }
    .help-prev-next a { color: #4f7cff; text-decoration: none; font-size: 14px; }
    .help-prev-next a:hover { text-decoration: underline; }

    /* 移动端改造 */
    @media (max-width: 991px) {
        .help-toolbar { display: flex; align-items: center; gap: 10px; padding: 10px 16px; background: #fff; border-bottom: 1px solid #eef1f6; position: sticky; top: 0; z-index: 20; }
        .help-toggle { display: inline-flex; align-items: center; gap: 6px; background: #4f7cff; color: #fff; border: none; border-radius: 8px; padding: 8px 12px; font-size: 14px; cursor: pointer; }
        .help-layout { padding: 0; position: relative; }
        .help-sidebar { position: fixed; top: 0; left: 0; bottom: 0; width: 280px; z-index: 100; transform: translateX(-100%); transition: transform .25s ease; }
        .help-layout.show-sidebar .help-sidebar { transform: translateX(0); }
        .help-sidebar-mask { display: block; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,.4); opacity: 0; visibility: hidden; transition: opacity .25s ease; }
        .help-layout.show-sidebar .help-sidebar-mask { opacity: 1; visibility: visible; }
        .help-sidebar-inner { position: static; max-height: none; height: 100%; border-radius: 0; border: none; }
        .help-page { padding-bottom: 40px; }
    }