:root {
  color-scheme: light;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #333639;
  background: #e7e4ff;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
button, input { font: inherit; }
button { cursor: pointer; }
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 16px;
  background: linear-gradient(135deg, #f6f7ff 0%, #e6e7ff 54%, #c8caff 100%);
}
.login-card {
  width: min(448px, 100%); min-height: 532px; padding: 30px 24px 26px; border-radius: 12px;
  background: rgba(255, 255, 255, .97); box-shadow: 0 24px 60px rgba(67, 68, 149, .16);
}
.login-brand { display: grid; grid-template-columns: 64px 1fr 32px; align-items: center; gap: 12px; }
.soybean-logo { display: block; width: 56px; height: 56px; }
.soybean-logo svg { display: block; width: 100%; height: 100%; }
.login-brand h1 { margin: 0; color: #6366ee; font-size: clamp(21px, 4vw, 28px); font-weight: 500; letter-spacing: 0; white-space: nowrap; }
.login-brand h1 span { margin-left: 4px; }
.login-tools { display: flex; flex-direction: column; gap: 2px; }
.icon-button, .password-toggle, .link-button { border: 0; background: transparent; color: #4b4f55; }
.icon-button { width: 30px; height: 30px; font-size: 19px; line-height: 1; }
.icon-button:hover, .link-button:hover { color: #646cff; }
.login-heading { padding-top: 26px; }
.login-heading h2 { margin: 0; color: #646cff; font-size: 18px; font-weight: 500; }
.login-heading p { margin: 7px 0 0; color: #89909a; font-size: 13px; }
.login-form { display: grid; gap: 14px; padding-top: 22px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.login-form input:not([type="checkbox"]) { width: 100%; height: 42px; padding: 0 14px; border: 1px solid #e0e0e6; border-radius: 6px; outline: 0; color: #333639; background: #fff; }
.login-form input:not([type="checkbox"]):focus { border-color: #646cff; box-shadow: 0 0 0 2px rgba(100, 108, 255, .14); }
.login-form input::placeholder { color: #b5b9c0; }
.password-field { position: relative; }
.password-field input { padding-right: 44px !important; }
.password-toggle { position: absolute; right: 9px; top: 50%; transform: translateY(-50%); color: #b5b9c0; font-size: 15px; }
.captcha-field { display: grid; grid-template-columns: minmax(0, 1fr) 132px; gap: 10px; }
.captcha-refresh { height: 42px; padding: 0; overflow: hidden; border: 1px solid #e0e0e6; border-radius: 6px; background: #f7f8ff; }
.captcha-refresh img { display: block; width: 100%; height: 100%; object-fit: cover; }
.captcha-hint { color: #a0a5ae; font-size: 12px; }
.login-options { display: flex; align-items: center; justify-content: space-between; font-size: 14px; }
.remember { display: inline-flex; align-items: center; gap: 7px; color: #51565d; cursor: pointer; }
.remember input { width: 16px; height: 16px; accent-color: #646cff; }
.link-button { padding: 5px 0; font-size: 14px; }
.submit-button { height: 42px; border: 0; border-radius: 22px; color: #fff; background: #646cff; font-weight: 500; box-shadow: 0 7px 14px rgba(100, 108, 255, .2); }
.submit-button:hover { background: #565cf3; }
.login-error { padding: 10px 12px; margin-top: 16px; border: 1px solid #f2b8bd; border-radius: 6px; color: #b83a47; background: #fff1f2; font-size: 13px; }
.login-success { padding: 10px 12px; margin-top: 16px; border: 1px solid #a8e0c5; border-radius: 6px; color: #27825b; background: #effbf5; font-size: 13px; }
.auth-footer { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 22px; padding-top: 18px; border-top: 1px solid #ececf1; color: #9297a0; font-size: 13px; }
.auth-footer a { color: #646cff; text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }
.login-page-dark { background: linear-gradient(120deg, #17182a 0%, #27284b 52%, #4e4e98 100%); }
.login-page-dark .login-card { background: rgba(29, 30, 47, .98); box-shadow: 0 24px 60px rgba(0,0,0,.28); }
.login-page-dark .login-heading p, .login-page-dark .login-form input::placeholder { color: #9b9fb8; }
.login-page-dark .remember, .login-page-dark .icon-button, .login-page-dark .link-button { color: #d2d4e5; }
.login-page-dark .login-form input:not([type="checkbox"]) { border-color: #444665; color: #ececff; background: #25263d; }
.login-page-dark .captcha-refresh { border-color: #444665; }
.login-page-dark .auth-footer { border-color: #3b3d5b; color: #9b9fb8; }
@media (max-width: 560px) {
  .login-page { padding: 14px; }
  .login-card { padding: 24px 20px; }
  .login-brand { grid-template-columns: 52px 1fr auto; gap: 8px; }
  .soybean-logo { transform: scale(.86); transform-origin: left center; }
  .login-brand h1 { font-size: 21px; }
  .login-heading { padding-top: 20px; }
}