:root {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: #18202b;
  background: #171d26;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
button, input { font: inherit; }
.login-shell { min-height: 100vh; padding: 24px; display: grid; place-content: center; background: #171d26; }
.login-panel { width: min(420px, calc(100vw - 32px)); background: #fff; border-top: 4px solid #d4a73d; box-shadow: 0 18px 50px #0006; }
.login-brand { padding: 28px 30px 22px; border-bottom: 1px solid #e2e6ea; }
.login-brand > span { color: #a3781f; font-size: 9px; font-weight: 800; letter-spacing: 1.4px; }
.login-brand h1 { margin: 8px 0 5px; font-size: 24px; letter-spacing: 0; }
.login-brand p { margin: 0; color: #778391; font-size: 11px; }
form { padding: 24px 30px; display: grid; gap: 15px; }
label { color: #5d6975; font-size: 11px; font-weight: 700; }
input { width: 100%; height: 42px; margin-top: 7px; padding: 0 11px; border: 1px solid #cbd3db; border-radius: 3px; outline: none; }
input:focus { border-color: #a7791d; box-shadow: 0 0 0 3px #d4a73d2b; }
button { height: 43px; border: 0; color: #171d26; background: #e2b84f; font-weight: 800; cursor: pointer; }
button:hover { background: #d6aa3f; }
.login-error { padding: 9px 10px; color: #9c3f3f; background: #fff0f0; font-size: 10px; }
.security-note { padding: 13px 30px; display: flex; align-items: center; gap: 8px; color: #687581; background: #f4f6f8; font-size: 9px; }
.security-note i { width: 8px; height: 8px; background: #2d806b; }