@charset "utf-8";

:root {
  --color-black: #333333;
  --color-white: #ffffff;
  --color-gray: #f3f3f3;
  --color-dark-gray: #888888;
  --color-blue: #0070c0;
  --color-red: #ab0000;
  --color-theme-color: #00a9c9;
}

/* #base setting　　　　　
===================================================== */
body {
  font: 400 16px / 1.8 "Zen Kaku Gothic New", sans-serif;
  color: var(--color-black);
  text-align: justify;
  letter-spacing: 1px;
  inline-size: 100%;
  block-size: auto;
}

a {
  text-decoration: none;
  color: #003a57;
}

@media screen and (width <=768px) {
  body {
    font-size: 13px;
  }

  .pc {
    display: none !important;
  }

  .sp {
    display: block !important;
  }
}

.sp {
  display: inline !important;
}


/* =====================================================
/* img
===================================================== */
img {
  max-inline-size: 100%;
  display: block;
  margin: 0 auto;
}


/* =====================================================
/* header
===================================================== */
header {
  position: sticky;
  top: 0;
  z-index: 9999;
  inline-size: 100%;
  block-size: 60px;
  background: var(--color-theme-color);
  padding-block: 15px 10px;

  & .inner {
    max-inline-size: 1080px;
    margin: 0 auto;

    & h1 {
      inline-size: 150px;
      block-size: auto;
      display: block;
      margin: 0 auto;
    }
  }
}

@media screen and (width <=768px) {
  header {
    & .inner {
      inline-size: 100%;
    }
  }
}


/* =====================================================
/* secBreadcrumbs
===================================================== */
.secBreadcrumbs {
  inline-size: 100%;
  block-size: 40px;
  background: var(--color-gray);

  & .breadcrumbs {
    margin: auto;
    max-inline-size: 1080px;
    line-height: 40px;

    & ul {
      display: flex;
      align-items: center;
      justify-content: flex-start;

      & li {
        padding-inline-end: 20px;
        list-style: none;
        font-size: 14px;

        &:not(:last-child) {
          position: relative;
          padding-inline-end: 40px;

          &::after {
            content: "＞";
            display: block;
            position: absolute;
            inline-size: 9px;
            block-size: 15px;
            top: 0px;
            right: 15px;
          }
        }
      }
    }
  }
}


@media screen and (width <=768px) {

  .secBreadcrumbs {

    & .breadcrumbs {
      padding: 0 20px;

      & ul {
        display: block;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        overflow-scrolling: touch;
        overflow: auto;
        white-space: nowrap;

        & li {
          display: inline;
          padding-inline-end: 20px;
          flex: 0 0 40%;

          &:not(:last-child) {
            position: relative;

            &::after {
              top: -10px;
            }
          }
        }
      }
    }
  }
}

/* headLine
===================================================== */
#headLine {
  display: grid;
  place-items: center;
  padding-block: 60px;

  & .eng {
    color: var(--color-theme-color);
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 0;
  }

  & h2 {
    font-size: 32px;
    text-align: center;
  }
}

@media screen and (width <=768px) {
  #headLine {
    padding-block: 30px;

    & .eng {
      font-size: 14px;
    }

    & h2 {
      font-size: 20px;
    }
  }
}


/* =====================================================
/* secEntry
===================================================== */
.secEntry {
  inline-size: 100%;
  padding-block: 60px;
  background-color: var(--color-gray);

  & .inner {
    max-inline-size: 1140px;
    margin: 0 auto;
    background-color: var(--color-white);
  }
}

@media screen and (width <=768px) {
  .secEntry {
    padding-inline: 10px;
    padding-block: 30px;

    & .inner {
      inline-size: 100%;
      padding-inline: 10px;
    }
  }
}




/* headingLevel-03
===================================================== */
.headingLevel-03 {
  line-height: 1;
  font-size: 22px;
  font-weight: bold;
  border-bottom: 3px solid var(--color-dark-gray);

  & span {
    position: relative;
    display: inline-block;
    padding: 0 0 10px;

    &::before {
      content: '';
      position: absolute;
      bottom: -3px;
      left: 0;
      inline-size: 100%;
      block-size: 3px;
      background-color: var(--color-theme-color);
    }
  }
}

@media screen and (width <=768px) {
  .headingLevel-03 {
    font-size: 20px;
    line-height: 1.2;
  }
}

/* headingLevel-04
===================================================== */
.headingLevel-04 {
  font-size: 18px;
}

@media screen and (width <=768px) {
  .headingLevel-04 {
    font-size: 16px;
    margin-block-end: 10px;
  }
}

/* indent
===================================================== */
.indent {
  text-indent: -1em;
  padding-inline-start: 1em;
}

/* footer
===================================================== */
.copy {
  text-align: center;
  color: #7f8979;
  margin: 10px auto;
  font-size: 14px;
}


/* #require
===================================================== */
.require {
  display: inline-block;
  color: var(--color-white);
  background: var(--color-red);
  font-size: 12px;
  padding: 0 10px;
  margin-inline-start: 10px;
}

/* #optional
===================================================== */
.optional {
  display: inline-block;
  color: var(--color-white);
  background: var(--color-blue);
  font-size: 12px;
  padding: 0 10px;
  margin-inline-start: 10px;
}

/* annotation
===================================================== */
.annotation {
  font-size: 13px;
  color: var(--color-red);
}


/* #jsAccordion
===================================================== */
.jsAccordion {
  padding: 5px;
  font-size: 24px;
  font-weight: bold;
  color: var(--color-white);
  background: var(--color-theme-color);
  border-radius: 3px 3px 0 0;
  position: relative;
  transition-duration: 0.2s;
  cursor: pointer;
  text-align: center;

  &::before {
    content: "＋";
    position: absolute;
    right: 20px;
    transform: rotate(90deg);
    transition: transform 0.4s;
  }

  &.is-open::before {
    content: "－";
    transform: rotate(180deg);
    transition: transform 0.4s;
  }
}

.jsAccordion-details {
  display: none;
  border: 2px solid var(--color-theme-color);

  & a {
    text-decoration: underline;
  }

  & ul {
    padding: 10px;

    & li {
      list-style: none;
      padding-block-end: 10px;
    }
  }
}

@media screen and (width <=768px) {
  .jsAccordion {
    font-size: 20px;
  }
}