/* Shared sign-in, registration and password-required surface. */
.login-shell { display: grid; place-items: center; min-height: 100dvh; padding: 40px 24px; }
.login-layout { width: min(400px,100%); }
.login-panel { border: 1px solid var(--line); border-radius: 12px; padding: 32px; background: var(--surface); }
.login-brand { margin-bottom: 32px; }
.login-brand .brand-mark { width: 42px; height: 42px; flex-basis: 42px; }
.login-brand > div:last-child { min-width: 0; }
.login-brand strong { white-space: normal; }
.login-brand span { display: block; font-size: 12px; margin-top: 2px; color: var(--muted); }
.login-panel h2 { font-size: 22px; line-height: 32px; margin-bottom: 24px; }
.login-form { display: grid; gap: 20px; }
.login-form > button[type="submit"] { width: 100%; }
.login-password-field,.onboarding-password-field,.user-password-field { position: relative; display: block; }
.login-password-field input,.onboarding-password-field input,.user-password-field input { padding-right: 46px!important; }
.password-visibility-toggle,
.user-password-field > button {
  position: absolute;
  inset: 0 0 0 auto;
  display: inline-grid;
  place-items: center;
  min-height: 40px;
  width: 40px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background-color var(--motion), color var(--motion), border-color var(--motion), box-shadow var(--motion);
}
.password-visibility-toggle:hover:not(:disabled),
.user-password-field > button:hover:not(:disabled) {
  background: var(--brand-tint);
  color: var(--brand);
  border-color: transparent;
}
.password-visibility-toggle:active:not(:disabled),
.user-password-field > button:active:not(:disabled) {
  background: var(--brand-tint);
  color: var(--brand-hover);
  filter: none;
}
.password-visibility-toggle:focus-visible,
.user-password-field > button:focus-visible {
  z-index: 1;
  outline: 2px solid var(--brand);
  outline-offset: -2px;
  color: var(--brand);
  background: var(--brand-tint);
}
.password-visibility-toggle[aria-pressed="true"],
.user-password-field > button[aria-pressed="true"] {
  color: var(--brand);
}
.password-visibility-toggle::before { content: ""; width: 18px; height: 18px; background: currentColor; mask: url("icons/eye.svg") center / contain no-repeat; }
.password-visibility-toggle[aria-pressed="true"]::before,.password-visibility-toggle[aria-label^="隐藏"]::before { mask-image: url("icons/eye-off.svg"); }
.login-captcha-field { display: flex; align-items: stretch; gap: 10px; }
.login-captcha-field input { flex: 1; }
.captcha-image-button { flex: 0 0 116px; width: 116px; min-height: 40px; padding: 0; background: var(--surface); border: 1px solid var(--line); overflow: hidden; }
.captcha-image-button img { width: 100%; height: 40px; object-fit: contain; }
.login-secondary-link { text-align: center; text-decoration: none; }
.login-submit-spinner { display: none; }
.is-loading .login-submit-spinner { display: inline-block; }
.login-submit-button.is-loading::after { display: none; }
@media(max-width:480px) { .login-shell { padding: 24px 16px; } .login-panel { padding: 24px; } .login-brand { margin-bottom: 24px; } }

.user-password-row { display: grid; gap: 6px; margin-bottom: 16px; }
.user-password-field > button svg { width: 18px; height: 18px; }
.user-password-field > button:not([aria-pressed="true"]) .password-eye-slash { display: none; }
.password-required-logout { margin-top: 12px; }
.password-required-logout button { width: 100%; }