@charset "utf-8";

/* コンテンツ */
.main .contents {
  display: flex;
  flex-direction: row-reverse;
  justify-content: flex-end;
  column-gap: 30px;

  width: 1080px;
  max-width: 90%;
  margin: 20px auto 0 auto;
}
.main .contents .item {
  flex-grow: 1;
}
.main .contents .item h2 {
  margin: 40px 0 15px 0;
  border-bottom: 1px solid #888;
  padding: 10px 0 10px 10px;
  font-size: 28px;
  background-color: #ddd;
}
.main .contents .item h2:first-child {
  margin-top: 0;
}
.main .contents .item h3 {
  margin: 20px 0 10px 0;
  border-bottom: 1px solid #888;
  font-size: 20px;
}
.main .contents .item ul {
  padding-left: 2em;
}

.main .contents .item .img-scr-capt {
  display: block;
  margin: 0 0 1.5em 20px;
  border: 1px solid #ccc;
  width: 400px;
}
.main .contents .item .img-inline {
  display: inline;
  height: 1em;
}


/* サイドメニュー */
.main .contents .menu {
  flex-shrink: 0;
  position: relative;
}
.main .contents .menu-inner {
  width: 250px;
  position: sticky;
  top: 30px;
  left: 0;
  right: 0;
  border: 1px solid #ddd;
  padding: 1px;
}
.main .contents .menu-inner h2 {
  padding: 15px 0 15px 10px;
  font-size: 15px;
  font-weight: bold;
  background-color: #ddd;
}

/* サイドメニュー：ul 1段目 */
.main .contents .menu-inner > ul {
  list-style: none;
}
.main .contents .menu-inner > ul > li {
  position:relative;
  padding: 0 0 0 1.7em;
  border-bottom: 1px solid #ccc;
}
.main .contents .menu-inner > ul > li::before {
  content: "≫ ";
  position: absolute;
  left: 10px;
  top: 14px;
}
.main .contents .menu-inner > ul li:last-child {
  border-bottom: none;
}

.main .contents .menu-inner a {
  display: inline-flex;
  width: 100%;
  padding: 15px 0 15px 0;
  color: inherit;
  text-decoration: none;
}
.main .contents .menu-inner a:hover {
  color: #555;
}

/* サイドメニュー：ul 2段目 */
.main .contents .menu-inner > ul > li > ul {
  list-style-type: "・";
}
.main .contents .menu-inner > ul > li > ul > li {
  margin: -15px 0 0 10px;
}
.main .contents .menu-inner > ul > li > ul > li > a {
  padding: 0 0 15px 0;
}


/*
  モバイルメディア用指定
*/
@media (max-width: 800px) {
  .main .contents .menu {
    display: none;
  }
}