:root{--webmail-accent:#696cff;--webmail-ink:#22303c;--webmail-soft:#f4f6fb}body{font-family:Instrument Sans,Noto Sans TC,sans-serif}.auth-page{background:radial-gradient(circle at 15% 15%,#696cff2e,#0000 34rem),radial-gradient(circle at 90% 80%,#03c3ec24,#0000 30rem),#f5f5f9;min-height:100vh}.auth-shell{place-items:center;min-height:100vh;padding:2rem 1rem;display:grid}.auth-card{border:0;width:min(100%,28rem);box-shadow:0 1rem 3rem #22303c1f}.brand-mark{color:#fff;background:linear-gradient(135deg,#696cff,#03c3ec);border-radius:.85rem;place-items:center;width:2.5rem;height:2.5rem;display:inline-grid;box-shadow:0 .5rem 1rem #696cff47}.menu-link.disabled{opacity:.55;pointer-events:none}.webmail-shell{min-height:calc(100vh - 10rem);overflow:hidden}.webmail-pane{background:var(--bs-paper-bg,#fff);min-height:34rem}.webmail-list-pane{border-inline:1px solid var(--bs-border-color)}@media (width<=991.98px){.webmail-list-pane,.webmail-detail-pane{display:none}}