/* 상단 섹션 공통 스타일 */
.sub_top {
  position: relative;
  height: 300px;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.sub_top::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0, 255, 171, 0.1) 0%, transparent 70%);
}

.sub_top_tit {
  font-size: 4rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
  position: relative;
  z-index: 1;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* 반응형 스타일 */
@media (max-width: 1024px) {
  .sub_top {
    height: 250px;
  }

  .sub_top_tit {
    font-size: 3.5rem;
  }
}

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

  .sub_top_tit {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .sub_top {
    height: 150px;
  }

  .sub_top_tit {
    font-size: 2rem;
    letter-spacing: 0.05em;
  }
}

/* 서브페이지 공통 컨테이너 */
.sub-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
}

@media (max-width: 768px) {
  .sub-container {
    padding: 40px 20px;
  }
}

@media (max-width: 480px) {
  .sub-container {
    padding: 30px 15px;
  }
}

.sub-header {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.sub-header h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.sub-header p {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .sub-header {
        padding: 40px 20px;
    }

    .sub-header h1 {
        font-size: 2em;
    }

    .sub-header p {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    .sub-header {
        padding: 30px 15px;
    }

    .sub-header h1 {
        font-size: 1.8em;
    }

    .sub-header p {
        font-size: 1em;
    }
}