/* custom properties */
:root {
  --color-primary: #009b94;
  --color-secondary: #004097;
  --color-link: #193342;
  --color-hover: #009b94;
  --color-white: #fff;
  --color-black: #000;
  --color-gray: #666;
  --color-lightgray: #999;
  --color-lightgray2: #ccc;
  --color-lightgray3: #e4e4e4;
  --color-maintext: #193342;
  --color-subtext: #333;
  --color-bg01: #F3F7FA;
  --color-bg02: #e4f2f2;
  --color-bg03: #BDE5E3;
  --color-bg04: #e8fffe;
  --font-family-sans-serif: YakuHanJPs, Arial, "Helvetica Neue", "Noto Sans JP", sans-serif;
  --font-family-font-awesome: "Font Awesome 5 Free"; }

.box_img_list {
  justify-content: center;
  margin-bottom: 2rem; }
  .box_img_list > li {
    width: calc(100% / 3 - 2rem); }
    @media screen and (max-width: 767px) {
      .box_img_list > li {
        width: calc(50% - 2rem); } }
    .box_img_list > li#plasma03 {
      width: 100%;
      max-width: 600px; }
      @media screen and (max-width: 767px) {
        .box_img_list > li#plasma03 {
          width: 100%;
          max-width: 600px; } }

.box_txt {
  margin-bottom: 4rem; }