.safeoperation__section .section_1 {
  background-color: #fff;
  padding: 60px 0 100px;
}

.safeoperation__section .section_1 .ico_list {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-bottom: 50px;
  margin-bottom: 100px;
}

.safeoperation__section .section_1 .ico_list li {
  text-align: center;
  width: calc(100% / 3);
}

.safeoperation__section .section_1 .ico_list li img {
  display: block;
  margin: 0 auto 20px;
  height: 80px;
}

.safeoperation__section .section_1 .ico_list li h3 {
  color: #23514A;
  font-size: 40px;
  font-size: 4rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.safeoperation__section .section_1 .ico_list li h3 sup {
  font-size: 20px;
  font-size: 2rem;
  position: relative;
  top: -40px;
}

.safeoperation__section .section_1 .ico_list li h4 {
  color: #252525;
  font-size: 24px;
  font-size: 2.4rem;
  padding-bottom: 10px;
}

.safeoperation__section .section_1 .ico_list li p {
  font-size: 18px;
  font-size: 1.8rem;
}

.safeoperation__section .section_1 .line {
  text-align: center;
}

.safeoperation__section .section_1 h4.line {
  color: #23514A;
  font-size: 24px;
  font-size: 2.4rem;
  margin-bottom: 20px;
}

.safeoperation__section .section_1 p {
  font-size: 16px;
  font-size: 1.6rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.safeoperation__section .section_2 {
  background: url(../images/safeoperation/bg_1.jpg) center top no-repeat;
  background-size: 100% auto;
  padding: 80px 0;
}

.safeoperation__section .section_2 .line {
  text-align: center;
}

.safeoperation__section .section_2 h4.line {
  color: #23514A;
  font-size: 24px;
  font-size: 2.4rem;
  margin-bottom: 20px;
}

.safeoperation__section .section_2 p {
  font-size: 16px;
  font-size: 1.6rem;
  line-height: 2;
  margin-bottom: 20px;
}

.safeoperation__section .section_3 {
  padding: 80px 0;
  background-color: #fff;
}

.safeoperation__section .section_3 .img_list li {
  width: calc(50% - 40px * 1 / 2);
  margin-right: 40px;
}

.safeoperation__section .section_3 .img_list li:nth-child(2n) {
  margin-right: 0;
}

.safeoperation__section .section_3 .img_list li .img_out {
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.safeoperation__section .section_3 .img_list li .img_out img {
  display: block;
  width: 100%;
}

.safeoperation__section .section_3 .img_list li .img_out p {
  position: absolute;
  color: #fff;
  font-size: 24px;
  font-weight: 2.4rem;
  left: 20px;
  bottom: 20px;
}