/* 🦉虾虾工作台🦉 online - 登录页 */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --gp: #1b5e20;
  --gd: #0d3d11;
  --gm: #2e7d32;
  --gl: #4caf50;
  --ga: #66bb6a;
  --gb: #e8f5e9;
  --gbl: #f1f8e9;
  --gbr: #a5d6a7;
  --gt: #1b5e20;
  --gtl: #388e3c;
}
body {
  font-family: 'Segoe UI', 'Microsoft YaHei', system-ui, sans-serif;
  background: linear-gradient(135deg, var(--gbl) 0%, var(--gb) 50%, #dcedc8 100%);
  color: var(--gt);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: #fff;
  border-radius: 16px;
  padding: 48px 40px;
  width: 380px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 12px 48px rgba(76, 175, 80, 0.18);
  border-top: 4px solid var(--gl);
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo-icon {
  font-size: 56px;
  display: inline-block;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 8px rgba(76, 175, 80, 0.3));
}
.login-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--gp);
  letter-spacing: 1px;
}
.login-subtitle {
  font-size: 13px;
  color: var(--gtl);
  margin-top: 6px;
  opacity: 0.8;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gp);
  margin-bottom: 6px;
}
.form-group input {
  width: 100%;
  padding: 11px 14px;
  font-size: 15px;
  border: 1.5px solid var(--gbr);
  border-radius: 8px;
  background: var(--gbl);
  transition: all 0.2s;
  font-family: inherit;
  outline: none;
}
.form-group input:focus {
  border-color: var(--gl);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.12);
}
.btn-primary {
  width: 100%;
  padding: 13px;
  font-size: 15px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--gl), var(--gm));
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  margin-top: 8px;
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.error-msg {
  color: #c62828;
  background: #ffebee;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.error-msg.show { display: block; }
.footer-hint {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--gtl);
  opacity: 0.7;
}