.hero4 {
  width: 100%;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 40px 40px;
  background-image: linear-gradient(135deg, #0f0202 0%, #2a0505 30%, #450a0a 55%, #3a0606 75%, #1a0303 100%);
  position: relative;
}
.hero4::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 25% 50%, rgba(180, 30, 30, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 75% 20%, rgba(220, 60, 60, 0.08) 0%, transparent 50%);
  background-color: transparent;
  z-index: 1;
}
.hero4-container {
  width: 100%; max-width: 1280px;
  display: flex; align-items: center;
  position: relative; z-index: 2;
}
.hero4-content { max-width: 600px; }
.hero4-title {
  font-size: 64px; font-weight: 700;
  color: var(--text-primary); margin: 0 0 20px 0;
  line-height: 1.2; font-family: Arial, sans-serif;
}
.hero4-subtitle {
  font-size: 28px; color: var(--text-primary);
  margin: 0 0 30px 0; line-height: 1.5; font-family: Arial, sans-serif;
}
.hero4-button {
  display: inline-block; padding: 15px 50px;
  background-color: var(--button-bg); color: var(--button-text);
  text-decoration: none; font-size: 20px; font-weight: 700;
  border-radius: 5px; font-family: Arial, sans-serif;
  transition: background-color 0.3s ease;
}
.hero4-button:hover { background-color: var(--button-hover-bg); }
@media (max-width: 768px) {
  .hero4 { height: auto; min-height: 500px; padding: 100px 20px 40px; }
  .hero4-container { justify-content: center; text-align: center; }
  .hero4-content { max-width: 100%; }
  .hero4-title { font-size: 36px; }
  .hero4-subtitle { font-size: 20px; margin-bottom: 25px; }
  .hero4-button { font-size: 18px; padding: 12px 40px; }
}