/*
 * 全站业务页标题基线。
 * 结构与 /topic-cloud 保持一致：纯文字标题 + 竖分隔线 + 一句用途说明。
 */
.ui-page-header {
    position: relative !important;
    top: auto !important;
    z-index: auto !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 12px 20px;
    width: 100%;
    max-width: none;
    min-height: 0 !important;
    margin: 0 0 16px !important;
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    flex-wrap: wrap;
}

.ui-page-heading {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.ui-page-title {
    flex: 0 0 auto;
    margin: 0 !important;
    color: var(--ui-text-strong, #111b2d) !important;
    font-size: 23px !important;
    font-weight: 750 !important;
    line-height: 1.25 !important;
    letter-spacing: -0.6px !important;
}

.ui-page-title::before,
.ui-page-title::after {
    display: none !important;
    content: none !important;
}

.ui-page-title-divider {
    width: 1px;
    height: 18px;
    flex: 0 0 1px;
    background: var(--ui-border-strong, #cbd6e4);
}

.ui-page-purpose {
    margin: 0 !important;
    color: var(--ui-text-muted, #617089) !important;
    font-size: 12px !important;
    font-weight: 400 !important;
    line-height: 1.5;
    white-space: nowrap;
}

.ui-page-header > .back-btn,
.ui-page-header > .btn-back,
.ui-page-header > .back-link {
    position: static;
}

@media (max-width: 768px) {
    .ui-page-header {
        align-items: center;
        gap: 10px 12px;
    }

    .ui-page-title-divider,
    .ui-page-purpose {
        display: none !important;
    }
}