.demo-hero {
    background: linear-gradient(135deg, #f7fbff 0%, #edf4ff 100%);
    padding: 90px 0 60px;
    border-bottom: 1px solid #e9eef5;
  }

  .demo-badge {
    display: inline-block;
    background: #e8f1ff;
    color: #0d6efd;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 18px;
  }

  .demo-hero h1 {
    font-size: 2.6rem;
    font-weight: 700;
    color: #1f2937;
    line-height: 1.2;
    margin-bottom: 16px;
  }
  .demo-hero p {
    color: #5f6b7a;
    font-size: 1.05rem;
    max-width: 750px;
    margin: 0 auto;
  }

  .contact-section {
    padding: 70px 0 90px;
    background: #f8fafc;
  }

  .contact-card,
  .info-card {
    background: #fff;
    border: 1px solid #e8edf4;
    border-radius: 22px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.06);
  }

  .contact-card {
    padding: 32px;
  }

  .info-card {
    padding: 30px;
    height: 100%;
  }
  .section-title {
    font-size: 1.85rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 10px;
  }

  .section-subtitle {
    color: #667085;
    line-height: 1.7;
    margin-bottom: 28px;
  }

  .form-label {
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
  }


  .form-control,
  .form-select {
    border-radius: 14px;
    min-height: 48px;
    border: 1px solid #dbe3ee;
    padding: 12px 14px;
    box-shadow: none;
  }

  textarea.form-control {
    min-height: 140px;
  }

  .form-control:focus,
  .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.12);
  }

  .btn-demo-submit {
    min-height: 52px;
    border-radius: 14px;
    font-weight: 600;
    padding: 12px 20px;
  }

  .info-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .info-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 22px;
  }

  .info-icon {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: #eff6ff;
    color: #0d6efd;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
  }

  .info-list h6 {
    font-weight: 700;
    margin-bottom: 4px;
    color: #1f2937;
  }

  .info-list p {
    margin: 0;
    color: #64748b;
    line-height: 1.6;
  }

  .mini-note {
    font-size: 0.92rem;
    color: #64748b;
    margin-top: 18px;
    line-height: 1.7;
  }

  .feature-points {
    margin-top: 26px;
    padding-top: 24px;
    border-top: 1px solid #edf2f7;
  }
  .feature-points .badge-point {
    display: inline-block;
    background: #f8fafc;
    border: 1px solid #e5eaf1;
    color: #334155;
    padding: 10px 14px;
    border-radius: 999px;
    margin: 0 8px 10px 0;
    font-size: 0.92rem;
    font-weight: 500;
  }

  .field-error {
    color: #dc3545;
    font-size: 0.9rem;
    margin-top: 6px;
  }

  .captcha-row img {
    margin-bottom: 10px;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    max-width: 100%;
  }