.blog-hero {
  position: relative;
  width: 100%;
  height: 250px;
  background-image: url('https://yourwebsite.com/wp-content/uploads/2025/11/banner-bep.jpg'); /* 👉 đổi ảnh thật */
  background-size: cover;
  background-position: center;
  border-radius: 0 0 12px 12px;
  overflow: hidden;
  margin-bottom: 40px;
}

.blog-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-hero-overlay h1 {
  color: #fff;
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
}

@media (max-width: 768px) {
  .blog-hero {
    height: 180px;
  }

  .blog-hero-overlay h1 {
    font-size: 26px;
  }
}