/* 系统业务导航：与管理工作台一致的白底、细线和蓝色状态。 */
.business-shell-header--compact {
    --nav-ink: #263b59;
    --nav-blue: #336dff;
    --nav-line: #e6ecf5;
    background: #fff;
    background-image: none;
    border-bottom: 1px solid var(--nav-line);
    box-shadow: none;
    position: relative;
    z-index: 1030;
}
.business-shell-header--compact::before,
.business-shell-header--compact::after { display: none; }
.business-shell-header--compact .business-shell-banner {
    background: #fff;
    border-bottom: 1px solid var(--nav-line);
}
.business-shell-header--compact .business-shell-navbar { min-height: 72px; padding: 10px 0; background: #fff; }
.business-shell-header--compact .business-shell-navbar__container { min-height: 50px; gap: 20px; }
.business-shell-header--compact .business-shell-nav { gap: 8px; align-items: center; }
.business-shell-header--compact .business-shell-user-nav { gap: 14px; }
.business-shell-header--compact :is(.business-shell-nav-link, .business-shell-user-toggle) {
    color: var(--nav-ink) !important;
    background: transparent;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    min-height: 42px;
    padding: 9px 12px;
    gap: 8px;
    border-radius: 8px;
    box-shadow: none;
    text-shadow: none;
    text-decoration: none;
    white-space: nowrap;
}
.business-shell-header--compact .business-shell-navbar__brand { font-weight: 650; padding-left: 0; margin-right: 8px; }
.business-shell-header--compact .bi { color: var(--nav-blue); font-size: 19px; line-height: 1; }
.business-shell-header--compact :is(.business-shell-nav-link, .business-shell-user-toggle):is(:hover, :focus, .active, [aria-expanded="true"]) {
    color: var(--nav-blue) !important;
    background: #edf4ff !important;
    box-shadow: none;
}
.business-shell-header--compact :is(a, button):focus-visible { outline: 2px solid #83afff; outline-offset: 3px; }
.business-shell-header--compact .dropdown-menu {
    min-width: 200px;
    max-width: min(320px, calc(100vw - 32px));
    margin-top: 10px;
    padding: 8px;
    border: 1px solid var(--nav-line);
    border-radius: 12px;
    box-shadow: 0 14px 36px rgba(28, 49, 83, .09);
}
.business-shell-header--compact .dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    color: var(--nav-ink);
    font-size: 15px;
    line-height: 1.5;
    border-radius: 6px;
}
.business-shell-header--compact .dropdown-item:is(:hover, :focus, .active) { background: #edf4ff; color: var(--nav-blue); }
.business-shell-header--compact a:hover { text-decoration: none; }
.business-shell-header--compact .dropdown-divider { border-color: var(--nav-line); margin: 6px; }
.business-shell-header--compact .business-shell-username { max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.business-shell-header--compact .business-shell-user-toggle img { object-fit: cover !important; background: #f5f7fb !important; margin-right: 0 !important; }
.business-shell-header--compact .navbar-toggler { border: 1px solid var(--nav-line); border-radius: 8px; padding: 8px; box-shadow: none; }
@media (max-width: 1199.98px) {
    .business-shell-header--compact .business-shell-navbar { min-height: 64px; padding: 6px 0; }
    .business-shell-header--compact .business-shell-navbar__container { gap: 0; }
    .business-shell-header--compact .navbar-collapse { margin: 10px 0 0; padding: 12px 0 4px; border-top: 1px solid var(--nav-line); }
    .business-shell-header--compact .business-shell-nav { align-items: stretch; gap: 2px; }
    .business-shell-header--compact .business-shell-user-nav { gap: 2px; padding-top: 10px; border-top: 1px solid var(--nav-line); }
    .business-shell-header--compact .nav-item > .nav-link { display: flex; width: 100%; }
    .business-shell-header--compact .dropdown-menu { max-width: 100%; margin: 4px 0 8px; box-shadow: none; background: #f8faff; }
    .business-shell-header--compact .business-shell-username { max-width: 65vw; }
}