:root {
  font-family: system-ui, -apple-system, "Microsoft YaHei UI", sans-serif;
  color: #182b45;
  background: #f5f8fc;
  font-synthesis: none;
}

.auth-page { margin: 0; }
.auth-page *, .auth-page *::before, .auth-page *::after { box-sizing: border-box; }
.auth-page [hidden] { display: none; }

.auth-layout {
  display: grid;
  align-content: center;
  gap: 1rem;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 30rem;
  margin-inline: auto;
  padding: 2rem 1rem;
}

.auth-brand { display: flex; align-items: center; gap: .625rem; }
.auth-brand strong, .auth-brand span { display: block; }
.auth-brand span { margin-top: .125rem; color: #506479; font-size: .8125rem; }

.auth-panel {
  padding: clamp(1rem, 6vw, 2rem);
  border: 1px solid #dce6f0;
  border-radius: 1rem;
  background: #fff;
}

.auth-panel h1 { margin: 0; font-size: 1.5rem; text-wrap: balance; }
.auth-panel p { text-wrap: pretty; }
.auth-panel > p:first-of-type { margin: .625rem 0 1.5rem; color: #506479; }
.auth-panel form, .auth-field { display: grid; gap: .5rem; }
.auth-panel form { gap: 1rem; }
.auth-field { font-weight: 600; }
.auth-rules { margin: 0; color: #506479; font-size: .875rem; }

.auth-field input, .auth-primary, .auth-switch button {
  min-height: 44px;
  font: inherit;
}

.auth-field input {
  width: 100%;
  padding: .5rem .75rem;
  border: 1px solid #a9bed4;
  border-radius: .5rem;
  background: #fff;
  color: inherit;
  font-weight: 400;
}

.auth-page :is(input, button):focus-visible {
  outline: 2px solid #1965b5;
  outline-offset: 3px;
}

.auth-primary {
  border: 0;
  border-radius: .5rem;
  background: #1965b5;
  color: #fff;
  font-weight: 650;
  cursor: pointer;
}

.auth-primary:hover:enabled { background: #124b88; }
.auth-primary:disabled { opacity: .72; }
#auth-retry { width: 100%; }
.auth-switch { display: flex; flex-wrap: wrap; align-items: center; gap: .375rem; margin: .5rem 0 0; }
.auth-switch > span { color: #506479; }

.auth-switch button {
  padding: .25rem .375rem;
  border: 0;
  border-radius: .375rem;
  background: transparent;
  color: #124b88;
  text-decoration: underline;
  cursor: pointer;
}

.auth-error {
  margin: 0;
  padding: .625rem .75rem;
  border: 1px solid #f5d4d3;
  border-radius: .5rem;
  background: #fff2f1;
  color: #963c32;
}