* {
  box-sizing: border-box;
}

h2 {
  font-size: 1.4em;
  /* margin-bottom: 1em; */
}

h3 {
  padding-bottom: 0.5em;
  display: inline-block;
}

h4 {
  padding-bottom: 0.5em;
  display: inline-block;
}

ul.circle_list,
li {
  list-style: none;
  padding: 0;
  padding-inline-start: 0;
}

.sub_ttl {
  font-size: 1.4em;
  font-weight: bold;
  color: #e74b00;
  margin-bottom: 1em;
}

.c_reset {
  counter-reset: number 1;
}

.t_center {
  text-align: center;
}

.f_center {
  margin: auto;
}

.f_wrap {
  display: flex;
  flex-wrap: wrap;
  column-gap: 20px;
  row-gap: 20px;
}

.f_flow {
  display: flex;
  flex-flow: column;
  row-gap: 20px;
}

.content_box_2 {
  display: inline;
}

.content_box p {
  text-indent: 1em;
  padding-left: 1.3em;
  padding-bottom: 1em;
}

ul.circle_list {
  padding-left: 1em;
  padding-bottom: 1em;
}

ol li,
ul.circle_list li {
  position: relative;
  text-indent: 0;
  padding-left: 1em;
  margin-bottom: 0.5em;
}

ul.circle_list li:before {
  content: "●";
  width: 1em;
  height: 1em;
  position: absolute;
  display: block;
  top: 0.5em;
  left: 0;
  transform: translateX(-6%) translateY(-46%);
}

ul.circle_list li:after,
.content_box ul.circle_list li:after {
  content: none;
}

.border {
  border: 1px solid #000;
  padding: 2%;
}

.content_box {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  padding: 2%;
  row-gap: 20px;
}

.content_box img {
  width: 100%;
  max-width: 1300px;
}

img.fit_img {
  width: fit-content;
  object-fit: contain;
  object-position: 50% 50%;
  display: block;
  margin: auto;
}

.flex_box_inner,
.flex_box1,
.flex_box2,
.flex_box3 {
  margin-bottom: 20px;
}

.flex_box_inner {
  padding: 2%;
}

.flex_box1 {
  width: 100%;
  overflow: hidden;
}

.flex_box2 {
  width: calc(100% / 2 - 15px);
  overflow: hidden;
}

.flex_box3 {
  width: calc(100% / 3 - 15px);
  align-self: flex-start;
  overflow: hidden;
}

.image_box {
  margin-bottom: 20px;
}

@media screen and (max-width: 1024px) {
  .flex_box2 {
    width: 100%;
  }

  .flex_box3 {
    width: 100%;
  }

  .flex_box3 img {
    max-width: fit-content;
    width: 100%;
    display: block;
    margin: 0 auto;
  }

  img.fit_img {
    max-width: fit-content;
    width: 100%;
  }
}

@media screen and (max-width: 600px) {
  .flex_box_inner {
    padding: 0;
  }
  .content_box p {
    text-indent: 0;
    padding-left: 0;
  }
}