/* ベース */
* {
  box-sizing: border-box;
}
body {
  background: #fff;
  color: #111;
  margin: 0;
  padding: 0;
  font-size: 1em;
  line-height: 1.8;
  overflow-x: hidden;
}
a {
  color: #d00707;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
a.newpage {
  color: #d06161;
}

/* ヘッダー */
header {
  padding: 0;
  background: linear-gradient(to bottom, #000, #884646);
  color: #fff;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 15px;
  max-width: 1100px;
  margin: 0 auto;
}
.site-title {
  font-size: 2em;
  font-weight: bold;
  letter-spacing: 2px;
}

/* ナビ */
nav {
  background: #000;
  color: #fff;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2px 15px;
}
.nav-inner ul {
  display: inline-flex;
  gap: 20px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.nav-inner li a {
  color: #fff;
  font-weight: 600;
}
.nav-inner li a:hover {
  text-decoration: underline;
}
@media (min-width: 768px) {
  .nav-inner {
    text-align: right;
  }
}
@media (max-width: 767px) {
  .nav-inner {
    text-align: left;
  }
}

/* レイアウト */
.main-layout {
  display: flex;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  gap: 30px;
  flex-direction: row;
}
@media (max-width: 767px) {
  .main-layout {
    flex-direction: column;
    padding: 20px;
  }
}

/* メイン */
main {
  flex: 1 1 auto;
  max-width: 100%;
  min-width: 0;
  order: 1;
}
@media (min-width: 768px) {
  main {
    margin-left: 0;
  }
}

/* main内のセクション */
main article section.containment {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  border: 1px solid #999;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
  margin-bottom: 20px;
}

/* サイドバー */
.side-column {
  width: 220px;
  flex-shrink: 0;
  background: #f9f9f9;
  padding: 15px;
  box-sizing: border-box;
  transition: left 0.3s ease;
  order: 0;
}
.side-column .side-box {
  background: #fff;
  border: 1px solid #999;
  border-radius: 12px;
  padding: 15px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

/* モバイル用サイドバー制御 */
@media (max-width: 767px) {
  .side-column {
    position: fixed;
    top: 0;
    left: -220px;
    bottom: 0;
    width: 220px;
    background: #884646;
    z-index: 9999;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
  }
  .side-column.open {
    left: 0;
  }
}

/* PC表示時のサイドバー */
@media (min-width: 768px) {
  .side-column {
    position: static;
  }
}

/* メニューボタン */
#menu-toggle {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 50px;
  height: 50px;
  background: #999;
  color: #fff;
  font-size: 24px;
  line-height: 50px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  cursor: pointer;
  line-height: 1;
}
@media (max-width: 767px) {
  #menu-toggle {
    display: flex;
  }
}
@media (min-width: 768px) {
  #menu-toggle {
    display: none !important;
  }
}

/* 検索関連 */
.search-box {
  width: auto;
  max-width: 200px;
  margin-left: auto;
  display: flex;
  align-items: center;
}
.searchbox {
  display: flex;
  gap: 0.3em;
  width: 100%;
  flex-wrap: nowrap;
}
.searchbox .searchinputs {
  display: flex;
  flex: 1 1 auto;
  gap: 0.3em;
  align-items: center;
  min-width: 0;
}
.queryinput {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.2em 0.4em;
  font-size: 0.85em;
}
.submitcover {
  flex-shrink: 0;
}
.submitcover .submitbutton {
  padding: 0.2em 0.6em;
  font-size: 0.85em;
  white-space: nowrap;
}
#search-top-box-input {
  width: 100%;
  padding: 4px;
  border: 1px solid #999;
  border-radius: 5px;
  color: #ccc;
  background: #300000;
  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.5);
}
#search-top-box-input:focus,
#search-top-box-input:hover {
  border-color: #fff;
  background: #630303;
  color: #fff;
  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.8);
}
#search-top-box-form input[type="submit"] {
  border: 1px solid #999;
  border-radius: 5px;
  padding: 2px 5px;
  font-size: 90%;
  font-weight: bold;
  color: #ccc;
  background: linear-gradient(to bottom, #963030, #630303, #300000);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  cursor: pointer;
}
#search-top-box-form input[type="submit"]:hover {
  border-color: #fff;
  color: #fff;
  background: linear-gradient(to bottom, #c99393, #963030, #630303);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

/* リストとリンク */
ul, .side-box ul {
  list-style: none;
  padding: 0;
  margin: 10px 0;
}
.side-box a {
  text-decoration: none;
  font-weight: bold;
}
ul.ul2 {
  display: flex;
  justify-content: flex-end;
  text-align: right;
}
ul.ul2 li {
  margin: 0 10px;
}
.cattree2 li, .hashtaglistarea li {
  display: inline-block;
}
.side-box li ul {
  margin-left: 0.6em;
  padding-left: 0.2em;
  border-left: none;
}

/* 見出し */
h1, h2, h3, h4, h5, h6 {
  margin: 0.5em 0 0.4em;
  font-weight: bold;
  letter-spacing: 1px;
}
article h2 {
  font-size: 1.6em;
  border-bottom: 2px solid #d00707;
  margin-top: -10px;
  padding-bottom: 5px;
}
h3 {
  border-bottom: 1px solid #aaa;
  padding-bottom: 4px;
  margin-top: 30px;
}
h4, h5 {
  margin-top: -5px;
}

/* バナー画像 */
.banner-img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* フッター */
footer {
  background: #111;
  color: #ccc;
  text-align: center;
  padding: 20px;
  font-size: 0.9em;
  margin-top: 50px;
}

/* テキストエリア */
textarea {
  width: 100%;
  padding: 4px;
  overflow: auto;
}

/* 引用 */
.decorationQ {
  max-width: 450px;
  width: 90%;
  color: #fff;
  margin: 1em 0.3em 1em 1em;
  padding: 0.75em;
  background: #333;
  border: 1px solid #ccc;
  border-radius: 5px;
  box-shadow: 1px 1px 1px #ccc;
  font-style: italic;
  display: block;
}
.decorationQ::before,
.decorationQ::after {
  content: '';
}

/* 絵文字 */
.cemoji img {
  transition: transform 0.2s ease;
}
.cemoji img:hover {
  transform: scale(1.2);
}

/* iframe */
#iframe {
  scrolling: yes;
}