html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #0f172a;
  background:
    radial-gradient(circle at 12% 15%, rgba(59, 130, 246, 0.16), transparent 32%),
    radial-gradient(circle at 85% 8%, rgba(14, 165, 233, 0.14), transparent 28%),
    radial-gradient(circle at 88% 88%, rgba(99, 102, 241, 0.12), transparent 30%),
    #f4f7fc;
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.10);
  backdrop-filter: blur(8px);
}

.login-card-inner {
  padding: 32px 28px 26px;
}

.login-title {
  margin: 0;
  color: #0f172a;
  font-size: 24px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.login-subtitle {
  margin: 8px 0 0;
  color: #64748b;
  font-size: 13px;
}

.login-form {
  margin-top: 22px;
}

.login-form .form-item {
  margin-bottom: 14px;
}

.login-form label {
  display: block;
  margin-bottom: 7px;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
}

.login-form input {
  width: 100%;
  height: 44px;
  box-sizing: border-box;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  background: #fff;
  color: #111827;
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
}

.login-form input::placeholder {
  color: #9ca3af;
}

.login-form input:focus {
  border-color: #8ab4ff;
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.14);
}

.login-btn {
  margin-top: 8px;
  width: 100%;
  height: 44px;
  border: 0;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #1f6feb, #3b82f6);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 24px rgba(31, 111, 235, 0.28);
}

.login-btn:hover {
  transform: translateY(-1px);
}

.login-btn:active {
  transform: translateY(0);
}

.login-footer {
  margin-top: 14px;
  text-align: center;
  color: #94a3b8;
  font-size: 12px;
}

@media (max-width: 480px) {
  .login-card-inner {
    padding: 24px 18px 20px;
  }
  .login-title {
    font-size: 22px;
  }
}