body { overflow: hidden; }
.login-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 480px; height: 100vh; }
/* 左侧品牌区：工业深色 + 电缆纹理 */
.login-brand {
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(184, 97, 45, 0.14), transparent 60%),
    linear-gradient(160deg, var(--shell) 0%, var(--shell-deep) 100%);
  color: var(--shell-text-bright);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 48px 56px; position: relative; overflow: hidden;
}
/* 电缆同心环装饰 */
.rings { position: absolute; right: -180px; bottom: -180px; opacity: 0.5; }
.rings circle { fill: none; stroke-width: 1.5; }
.rings .r1 { stroke: rgba(184, 97, 45, 0.5); stroke-dasharray: 6 8; animation: spin 40s linear infinite; transform-origin: center; }
.rings .r2 { stroke: rgba(255, 255, 255, 0.14); }
.rings .r3 { stroke: rgba(184, 97, 45, 0.28); stroke-dasharray: 2 10; animation: spin 60s linear infinite reverse; transform-origin: center; }
@keyframes spin { to { transform: rotate(360deg); } }
.login-brand .lb-logo { display: flex; align-items: center; gap: 12px; }
.login-brand .lb-message { width: min(100%, 560px); }
.login-brand h1 { margin: 0; font-size: clamp(36px, 3.2vw, 50px); font-weight: 680; letter-spacing: 0.015em; line-height: 1.28; }
.lb-daily-quote { position: relative; max-width: 520px; margin-top: 40px; padding: 2px 0 2px 20px; border-left: 2px solid rgba(217, 138, 80, 0.72); }
.lb-daily-label { display: block; margin-bottom: 12px; color: var(--jt-copper-bright); font-family: var(--jt-mono); font-size: 11px; font-weight: 650; letter-spacing: 0.2em; }
.lb-daily-quote blockquote { margin: 0; color: var(--shell-text-bright); font-size: 19px; font-weight: 580; letter-spacing: 0.02em; line-height: 1.75; }
.lb-daily-quote cite { display: block; margin-top: 8px; color: rgba(217, 138, 80, 0.88); font-size: 12px; font-style: normal; line-height: 1.6; }
.lb-daily-quote p { max-width: 480px; margin: 18px 0 0; color: var(--shell-text); font-size: 14px; line-height: 1.85; }
.lb-foot { color: var(--shell-text); font-size: 11.5px; font-family: var(--jt-mono); }
/* 右侧表单区 */
.login-side { background: var(--jt-surface); display: grid; place-items: center; padding: 40px; }
.login-card { width: 100%; max-width: 360px; }
.login-card h2 { font-size: 22px; font-weight: 660; margin-bottom: 6px; }
.login-card .lc-sub { color: var(--jt-muted); font-size: 13px; margin-bottom: 28px; }
.login-card .jt-btn { width: 100%; height: 42px; font-size: 14px; margin-top: 6px; }
.lc-divider { display: flex; align-items: center; gap: 12px; margin: 22px 0; color: var(--jt-muted); font-size: 12px; }
.lc-divider::before, .lc-divider::after { content: ""; flex: 1; height: 1px; background: var(--jt-line); }
.lc-wecom {
  width: 100%; height: 42px; border-radius: 8px;
  border: 1px solid var(--jt-line-strong); background: #fff;
  display: flex; align-items: center; justify-content: center; gap: 9px;
  font-size: 13.5px; font-weight: 560; color: var(--jt-ink-soft);
  transition: all var(--dur-fast) var(--ease-out-quart);
}
.lc-wecom:hover { border-color: var(--jt-steel); color: var(--jt-steel-deep); transform: translateY(-1px); box-shadow: var(--jt-shadow-2); }
.lc-wecom svg { width: 18px; height: 18px; color: #2b7abf; }
.lc-meta { margin-top: 26px; font-size: 11.5px; color: var(--jt-muted); text-align: center; font-family: var(--jt-mono); }
/* 表单入场 */
.login-card > * { opacity: 0; transform: translateY(14px); animation: jt-reveal 620ms var(--ease-out-expo) forwards; }
.login-card > *:nth-child(1) { animation-delay: 100ms; }
.login-card > *:nth-child(2) { animation-delay: 180ms; }
.login-card > *:nth-child(3) { animation-delay: 260ms; }
.login-card > *:nth-child(4) { animation-delay: 340ms; }
.login-card > *:nth-child(5) { animation-delay: 420ms; }
.login-card > *:nth-child(6) { animation-delay: 500ms; }
.login-card > *:nth-child(7) { animation-delay: 580ms; }
.login-card > *:nth-child(8) { animation-delay: 660ms; }
@media (max-width: 960px) { .login-wrap { grid-template-columns: 1fr; } .login-brand { display: none; } }
@media (max-width: 1180px) {
  .login-brand { padding-inline: 44px; }
  .login-brand h1 { font-size: 36px; }
  .lb-daily-quote { margin-top: 32px; }
  .lb-daily-quote blockquote { font-size: 17px; }
}

/* Real login compatibility: preserve existing authentication IDs and status states. */
.jt-login-body { overflow: hidden; min-height: 100vh; background: var(--jt-canvas); }
.jt-login-body .login-brand { isolation: isolate; }
.jt-login-body .login-brand > *:not(.rings) { position: relative; z-index: 1; }
.jt-login-body .login-side { min-width: 0; }
.jt-login-body .login-card { position: relative; display: block; width: 100%; margin: 0; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
.jt-login-body .login-card form { display: grid; gap: 0; }
.jt-login-body .login-card .jt-field { margin-bottom: 14px; }
.jt-login-body .login-card .jt-field label { display: flex; align-items: center; justify-content: space-between; }
.jt-login-body .login-card .jt-input-wrap { position: relative; }
.jt-login-body .login-card .jt-input { height: 42px; padding-right: 56px; }
.jt-login-body .login-card .jt-password-toggle { position: absolute; top: 50%; right: 8px; min-height: 0; transform: translateY(-50%); border: 0; border-radius: 6px; padding: 5px 7px; background: transparent; color: var(--jt-steel); font-size: 12px; }
.jt-login-body .login-card .jt-password-toggle:hover { background: var(--jt-steel-soft); color: var(--jt-steel-deep); }
.jt-login-body .sketch-account-status,
.jt-login-body .sketch-wecom-status { min-height: 20px; margin-top: 10px; color: var(--jt-muted); font-size: 12px; line-height: 1.5; }
.jt-login-body .sketch-account-status.error,
.jt-login-body .sketch-wecom-status.error { color: var(--jt-danger); }
.jt-login-body .sketch-account-status.success,
.jt-login-body .sketch-wecom-status.ready { color: var(--jt-success); }
.jt-login-body .sketch-account-status.loading,
.jt-login-body .sketch-wecom-status.loading { color: var(--jt-steel); }
.jt-login-body .jt-login-channel { display: flex; margin-bottom: 0; }
.jt-login-body .jt-login-channel button { flex: 1; }
.jt-login-body .jt-login-channel:has(#accountLoginTab.is-active) #accountLoginTab,
.jt-login-body .jt-login-channel:has(#wecomLoginTab.is-active) #wecomLoginTab { display: none; }
.jt-login-body .jt-login-wecom-panel { text-align: center; }
.jt-login-body .sketch-wecom-panel { min-height: 0; }
.jt-login-body .sketch-wecom-panel .sketch-qr-frame { width: 268px; height: 332px; min-height: 332px; padding: 12px 14px; display: grid; place-items: center; border: 1px solid var(--jt-line); border-radius: 12px; background: var(--jt-surface-muted); box-shadow: 0 4px 8px rgba(49, 86, 110, 0.08); overflow: hidden; }
.jt-login-body .wecom-official-qr { min-height: 306px; }
.jt-login-body .wecom-official-qr iframe { width: 100% !important; height: 306px !important; max-width: 100%; }
.jt-login-body .sso-qr-loading,
.jt-login-body .sso-unavailable { display: grid; justify-items: center; gap: 8px; padding: 28px; color: var(--jt-muted); font-size: 12px; }
.jt-login-body .sso-qr-loading strong,
.jt-login-body .sso-unavailable strong { color: var(--jt-ink); font-size: 14px; }
.jt-login-body .sketch-wecom-scan-title { display: block; margin-top: 16px; font-size: 14px; }
.jt-login-body .sketch-wecom-scan-copy { margin-top: 6px; color: var(--jt-muted); font-size: 12px; line-height: 1.6; }
.jt-login-body .sketch-wecom-direct-login { display: inline-flex; margin-top: 12px; color: var(--jt-steel); font-size: 12px; }
.jt-login-body [hidden] { display: none !important; }
.jt-login-body .is-error { border-color: var(--jt-danger) !important; box-shadow: 0 0 0 3px rgba(187, 70, 62, 0.1) !important; }
@media (max-width: 640px) {
  .jt-login-body .sketch-wecom-panel .sketch-qr-frame { width: 236px; height: 306px; min-height: 306px; padding: 10px 12px; }
  .jt-login-body .wecom-official-qr { min-height: 284px; }
  .jt-login-body .wecom-official-qr iframe { height: 284px !important; }
}
@media (prefers-reduced-motion: reduce) {
  .jt-login-body .rings circle,
  .jt-login-body .login-card > * { animation: none !important; opacity: 1 !important; transform: none !important; }
}