body.admin-login {
  display: block;
  box-sizing: border-box;
  min-height: 100vh;
  margin: 0;
  color: var(--alive-ink);
  font-family: "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

.login-container {
  min-height: 100vh;
  display: grid;
  place-items: center;
  box-sizing: border-box;
  padding:
    calc(24px + env(safe-area-inset-top))
    14px
    calc(24px + env(safe-area-inset-bottom));
}

.login-card {
  box-sizing: border-box;
  width: min(420px, 100%);
  padding: 22px;
  color: var(--alive-ink);
  border: 1px solid var(--alive-border);
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 0%, rgba(124, 92, 255, .2), transparent 42%),
    radial-gradient(circle at 92% 18%, rgba(49, 207, 255, .11), transparent 35%),
    var(--alive-panel);
  box-shadow:
    var(--alive-shadow),
    inset 0 1px 0 rgba(255, 255, 255, .1);
  text-align: center;
  backdrop-filter: blur(28px) saturate(150%);
  -webkit-backdrop-filter: blur(28px) saturate(150%);
}

.login-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}

.login-card__top > span {
  color: var(--alive-accent);
  font: 760 .63rem/1 "Segoe UI Variable", sans-serif;
  letter-spacing: .18em;
}

.login-card h2 {
  margin: 0;
  font: 750 clamp(1.5rem, 5vw, 2rem)/1.15 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
  letter-spacing: -.025em;
}

.login-card > p {
  margin: 10px 0 0;
  color: var(--alive-muted);
  font: 460 .82rem/1.55 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

.login-form {
  margin-top: 24px;
}

.form-group {
  margin-bottom: 14px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 7px;
  color: var(--alive-muted);
  font: 650 .75rem/1.2 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

.form-group input {
  width: 100%;
  min-height: 44px;
  box-sizing: border-box;
  margin: 0;
  padding: 0 13px;
  color: var(--alive-ink);
  border: 1px solid var(--alive-border-soft);
  border-radius: 13px;
  outline: none;
  background: var(--alive-input);
  font: 520 .9rem/1 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

.form-group input:focus {
  border-color: color-mix(in srgb, var(--alive-accent) 72%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--alive-accent) 14%, transparent);
}

.login-btn {
  width: 100%;
  min-height: 43px;
  padding: 0 16px;
  color: #fff;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #8069ff, #9b56e8);
  box-shadow: 0 10px 25px rgba(124, 92, 255, .26);
  font: 700 .85rem/1 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
  cursor: pointer;
}

.login-btn:hover {
  background: linear-gradient(135deg, #735cf0, #8e48db);
}

.error-message {
  display: none;
  margin: 12px 0 0;
  color: #d5485d;
  font: 560 .75rem/1.45 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
}

#loading-message {
  color: var(--alive-muted);
  font-size: .8rem;
}

.back-link {
  width: fit-content;
  display: block;
  margin: 20px auto 0;
  color: var(--alive-muted);
  font: 600 .76rem/1.3 "Segoe UI Variable", "Microsoft YaHei", sans-serif;
  text-decoration: none;
}

.back-link:hover {
  color: var(--alive-link);
  opacity: 1;
}

@media (max-width: 500px) {
  .login-card {
    padding: 18px;
    border-radius: 24px;
  }
}