body:has(> .footer-box) { min-height:100vh; min-height:100dvh; display:flex; flex-direction:column; }
body:has(> .footer-box) > * { flex-shrink:0; }
body > .footer-box { margin-top:auto; width:100%; box-sizing:border-box; }

/* Personal-center pages omit the shared footer on H5. */
@media (max-width: 767px) {
  body:is(.is-user-center-page, .deposit-layout, .is-collect-page,
    .is-history-page, .is-setting-page, .is-edit-profile-page,
    .is-edit-password-page) > :is(.footer-box, .download-fab, .floating-action) {
    display: none;
  }
}