.chistee-system {
  background: #f7f7f5;
  padding: 0px 20px;
  font-family: Arial, Helvetica, sans-serif;
  color: #2b2b2b;
  overflow: hidden;
}

.chistee-system-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.chistee-system h2 {
  font-size: 42px;
  line-height: 1.15;
  margin: 0 0 12px;
  font-weight: 700;
}

.chistee-system-sub {
  font-size: 18px;
  line-height: 1.6;
  margin: 0 0 64px;
  color: #555;
}

.chistee-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 70px;
  align-items: start;
}

.chistee-step {
  text-align: center;
}

.chistee-icon-box {
  width: 180px;
  height: 180px;
  margin: 0 auto 28px;
  background: rgba(255,255,255,0.72);
  border-radius: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 14px 38px rgba(0,0,0,0.05),
    inset 0 1px 0 rgba(255,255,255,0.8);
  overflow: hidden;
}

.chistee-icon-box img {
  width: 230px;
  height: 230px;
  object-fit: contain;
  display: block;
}

.chistee-step-number {
  width: 30px;
  height: 30px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: #2f6f4e;
  color: white;
  font-size: 14px;
  line-height: 30px;
  font-weight: 600;
}

.chistee-step h3 {
  font-size: 22px;
  line-height: 1.3;
  margin: 0 0 10px;
  font-weight: 700;
}

.chistee-step p {
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  color: #555;
}

.chistee-system-note {
  margin-top: 58px;
  font-size: 17px;
  line-height: 1.7;
  color: #2f6f4e;
  font-weight: 500;
}

@media (max-width: 767px) {
  .chistee-system {
    padding: 5px 20px;
  }

  .chistee-system h2 {
    font-size: 32px;
  }

  .chistee-system-sub {
    font-size: 16px;
    margin-bottom: 44px;
  }

  .chistee-steps {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .chistee-icon-box {
    width: 165px;
    height: 165px;
    border-radius: 30px;
    margin-bottom: 24px;
  }

  .chistee-icon-box img {
    width: 190px;
    height: 190px;
  }

  .chistee-step h3 {
    font-size: 20px;
  }

  .chistee-step p {
    font-size: 15px;
  }

  .chistee-system-note {
    margin-top: 44px;
    font-size: 16px;
  }
}