:root {
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #17211e;
  background: #edf1ef;
  letter-spacing: 0;
}
* { box-sizing: border-box; }
body { min-width: 320px; min-height: 100vh; margin: 0; }
button, input { font: inherit; letter-spacing: 0; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(135deg, #f7f9f8 0 58%, #e6eeea 58% 100%); }
.login-panel { width: min(400px, 100%); padding: 32px; border: 1px solid #d6dfda; border-radius: 6px; background: #fff; box-shadow: 0 18px 55px #1830251a; }
.login-brand { display: flex; align-items: center; gap: 11px; padding-bottom: 24px; border-bottom: 1px solid #e0e6e3; }
.login-brand > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 5px; background: #d8eee5; color: #087052; }
.login-brand svg { width: 22px; height: 22px; }
.login-brand strong, .login-brand small { display: block; }
.login-brand strong { font-size: 17px; }
.login-brand small { margin-top: 4px; color: #718079; font: 9px/1 ui-monospace, monospace; }
.login-copy { margin: 28px 0 22px; }
.login-copy h1 { margin: 0; font-size: 22px; }
.login-copy p { margin: 7px 0 0; color: #65716c; font-size: 11px; }
.login-error { margin-bottom: 14px; padding: 10px 11px; border-left: 3px solid #c43d35; background: #fbeae8; color: #843b36; font-size: 11px; }
form, label { display: grid; gap: 8px; }
label span { color: #52605a; font-size: 10px; font-weight: 600; }
input { width: 100%; height: 42px; padding: 0 12px; border: 1px solid #ccd7d2; border-radius: 4px; outline: none; }
input:focus { border-color: #087f5b; box-shadow: 0 0 0 3px #d9eee6; }
button { height: 42px; margin-top: 10px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid #087f5b; border-radius: 5px; background: #087f5b; color: #fff; font-size: 12px; font-weight: 600; cursor: pointer; }
button:hover { background: #066e4f; }
button svg { width: 16px; height: 16px; }
@media (max-width: 520px) {
  .login-shell { place-items: start center; padding: 54px 16px 24px; background: #f5f7f6; }
  .login-panel { padding: 25px 22px; }
}