:root {
  color-scheme: light;
  --page: #f4f6f9;
  --surface: #fff;
  --ink: #17253d;
  --muted: #526077;
  --line: #c4ccd8;
  --primary: #1848a0;
  --primary-hover: #10377d;
  --focus: #2861c2;
  --error: #a5232b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  -webkit-text-size-adjust: 100%;
  scrollbar-color: #8795ab var(--page);
  background: var(--page);
  color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; font-size: 15px; line-height: 1.65; }
::selection { background: #dbe8ff; color: #102f68; }
a { color: var(--primary); text-underline-offset: 4px; }
a:hover { color: var(--primary-hover); }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: #1848a024; touch-action: manipulation; }
button, summary { cursor: pointer; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; z-index: 2; top: 8px; left: 16px; padding: 10px 16px; background: var(--surface); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 28px max(32px, env(safe-area-inset-right)) 20px max(32px, env(safe-area-inset-left)); }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--primary); color: #fff; font-size: 25px; font-weight: 750; line-height: 1; }
.brand-name { font-size: 22px; font-weight: 700; letter-spacing: -.025em; line-height: 1.3; }
.brand-caption { display: inline-block; margin-left: 14px; padding-left: 14px; border-left: 1px solid var(--line); font-size: 14px; font-weight: 500; letter-spacing: 0; color: var(--muted); vertical-align: middle; }
.header-note { color: var(--muted); font-size: 13px; }
main { width: 100%; flex: 1; padding: 48px max(20px, env(safe-area-inset-right)) 36px max(20px, env(safe-area-inset-left)); }
.auth-panel { width: 100%; max-width: 464px; margin: 0 auto; padding: 36px; background: var(--surface); border-radius: 16px; box-shadow: 0 8px 32px #1a315410; }
h1, h2, p { margin: 0; }
h1 { font-size: 27px; line-height: 1.4; font-weight: 650; letter-spacing: -.025em; text-wrap: balance; scroll-margin-top: 24px; }
h2 { font-size: 15px; font-weight: 650; }
.intro { color: var(--muted); margin: 12px 0 28px; text-wrap: pretty; }
.application-context { color: var(--muted); font-size: 14px; padding-bottom: 20px; }
.application-context strong { display: block; color: var(--ink); margin-top: 4px; }
.application-context, .application-name, .identity-line, .scope-list, .notice, .account-list { overflow-wrap: anywhere; }
.application-name { color: var(--ink); margin-right: .3em; }
.field { margin-bottom: 22px; }
.field > label { display: block; font-weight: 600; margin-bottom: 8px; }
.input-group { display: flex; position: relative; }
.input-group input { display: block; width: 100%; min-width: 0; min-height: 50px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); background: var(--surface); caret-color: var(--primary); font-size: 16px; }
.input-group input::placeholder { color: #657188; opacity: 1; }
.input-group input:hover { border-color: #8795ab; }
.input-group input:focus-visible { border-color: var(--focus); }
.input-group input[aria-invalid="true"] { border-color: var(--error); }
.input-group:has(.password-toggle:not([hidden])) input { padding-right: 94px; }
.password-toggle { position: absolute; right: 4px; top: 4px; bottom: 4px; padding: 0 10px; border: 0; border-radius: 5px; background: transparent; color: var(--primary); font-size: 13px; font-weight: 550; }
.password-toggle:hover { background: #eaf0fb; color: var(--primary-hover); }
.field-hint, .field-error { font-size: 13px; margin-top: 7px; color: var(--muted); }
.field-error { color: var(--error); }
.remember { display: flex; align-items: center; width: fit-content; gap: 10px; min-height: 44px; cursor: pointer; }
.remember input { width: 18px; height: 18px; margin: 0; accent-color: var(--primary); flex-shrink: 0; }
.remember-hint { margin: 0 0 26px 28px; }
.button { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 48px; padding: 11px 16px; border: 1px solid transparent; border-radius: 8px; text-decoration: none; font-weight: 600; line-height: 1.6; text-align: center; }
.button-primary { background: var(--primary); color: #fff; }
.button-primary:hover { background: var(--primary-hover); color: #fff; }
.button-primary:active { background: #0c2b66; }
.button-secondary { background: var(--surface); color: var(--muted); border-color: var(--line); }
.button-secondary:hover { background: #eef2f8; color: var(--ink); border-color: #8795ab; }
.button[aria-disabled="true"] { cursor: wait; opacity: .8; }
.button[data-loading]::before { content: ""; width: 14px; height: 14px; flex-shrink: 0; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.support-note { max-width: 464px; margin: 22px auto 0; font-size: 13px; color: var(--muted); text-align: center; text-wrap: pretty; }
.site-footer { padding: 0 20px max(24px, env(safe-area-inset-bottom)); text-align: center; color: var(--muted); font-size: 12px; }
.identity-line { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; margin: -4px 0 24px; border-top: 1px solid #e2e7ef; border-bottom: 1px solid #e2e7ef; font-size: 14px; }
.identity-line > div { min-width: 0; }
.identity-line strong, .identity-line span { display: block; }
.identity-label { color: var(--muted); font-size: 12px; margin-bottom: 3px; }
.identity-line a { flex-shrink: 0; display: grid; align-items: center; min-height: 44px; }
.notice { background: #edf3ff; color: #21497f; padding: 12px 14px; border-radius: 8px; margin-bottom: 22px; font-size: 14px; }
.notice-error { background: #fff0f0; color: var(--error); }
.secondary-link { display: block; margin-top: 16px; text-align: center; padding: 8px; }
.captcha { margin: -2px 0 22px; }
.captcha-image { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin: 12px 0 8px; }
.captcha-image img { max-width: 100%; object-fit: contain; }
.text-button { border: 0; padding: 10px 0; min-height: 44px; background: transparent; color: var(--primary); text-decoration: underline; text-underline-offset: 4px; }
.text-button:hover { color: var(--primary-hover); }
.captcha-audio { margin-bottom: 16px; }
.captcha-audio summary { width: fit-content; padding: 10px 0; color: var(--primary); min-height: 44px; font-size: 13px; }
.captcha-audio summary:hover { color: var(--primary-hover); text-decoration: underline; }
.captcha-audio audio { display: block; width: 100%; max-width: 320px; margin-top: 8px; }
.app-logo { display: block; object-fit: contain; margin-bottom: 20px; }
.scope-list { list-style: none; padding: 0; margin: 4px 0 18px; }
.scope-list li { padding: 13px 0; border-bottom: 1px solid #e2e7ef; }
.scope-list strong { font-size: 14px; font-weight: 600; }
.scope-list p, .consent-note { font-size: 13px; color: var(--muted); }
.scope-list p { margin-top: 3px; }
.consent-note { margin: 0 0 24px; }
.consent-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.consent-page main { padding-top: 24px; }
.consent-page .auth-panel { padding-top: 28px; padding-bottom: 28px; }
.consent-page .intro { margin-bottom: 20px; }
.consent-page .identity-line { padding: 12px 0; margin-bottom: 16px; }
.consent-page .scope-list li { padding: 9px 0; }
.consent-page .consent-note { margin-bottom: 20px; }
.policy-links { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 13px; margin: -8px 0 18px; }
.policy-links a { padding: 8px 0; min-height: 40px; }
.account-list { list-style: none; padding: 0; margin: 8px 0 26px; }
.account-list li { display: flex; gap: 16px; align-items: center; border-bottom: 1px solid #e2e7ef; }
.account-choice { display: block; flex: 1; min-width: 0; padding: 12px 0; text-decoration: none; }
.account-choice span { display: block; color: var(--muted); font-size: 13px; }
.account-choice:hover strong { text-decoration: underline; }
.account-choice .session-status { color: #237346; }
.account-remove { padding: 12px 0; flex-shrink: 0; font-size: 13px; }
.other-account { margin-bottom: 18px; }
@media (max-width: 540px) {
  .site-header { padding: 20px max(20px, env(safe-area-inset-right)) 16px max(20px, env(safe-area-inset-left)); }
  .brand-caption { margin-left: 10px; padding-left: 10px; font-size: 13px; }
  .header-note { display: none; }
  main { padding-top: 24px; }
  .auth-panel { padding: 28px 24px; }
  h1 { font-size: 24px; }
  .identity-line { gap: 12px; }
  .consent-actions { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 360px) {
  main { padding-left: 12px; padding-right: 12px; }
  .auth-panel { padding: 24px 20px; }
  .identity-line { align-items: flex-start; flex-direction: column; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) { .button[data-loading]::before { animation: none; } }
@media (forced-colors: active) { .button, .auth-panel { border: 1px solid CanvasText; } }