@media (width < 40rem) {
  /* Hero */
  .hero {
    height: 220px;
    margin-top: 30px;
  }

  .hero h1 {
    font-size: 1.2rem;
    padding: 0 15px;
    line-height: 1.5;
  }

  /* Intro */
  .intro {
    padding: 50px 15px;
  }

  .colorful-text {
    font-size: 1.4rem;
    letter-spacing: 2px;
    padding: 0 10px;
  }

  .colorful-text::before,
  .colorful-text::after {
    display: none;
  }

  .intro h3 {
    font-size: 1.1rem;
  }

  .intro p {
    font-size: 0.9rem !important;
    margin-top: 25px;
  }

  .triangle-left {
    width: 90px;
    opacity: 0.4;
  }

  .bottom-line {
    width: 90px;
  }
}
@media (width >= 40rem) {
  .hero {
    height: 260px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .colorful-text {
    font-size: 1.7rem;
  }

  .intro p {
    font-size: 0.95rem !important;
  }
}
@media (width >= 48rem) {
  .hero {
    height: 300px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .colorful-text {
    font-size: 1.9rem;
  }

  .colorful-text::before,
  .colorful-text::after {
    width: 90px;
  }

  .colorful-text::before {
    left: -110px;
  }

  .colorful-text::after {
    right: -110px;
  }
}
@media (width >= 64rem) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .intro {
    max-width: 1100px;
  }

  .colorful-text {
    font-size: 2rem;
  }

  .colorful-text::before,
  .colorful-text::after {
    width: 120px;
  }

  .colorful-text::before {
    left: -150px;
  }

  .colorful-text::after {
    right: -150px;
  }
}
@media (width >= 80rem) {
  .intro {
    max-width: 1200px;
  }
}