.header-icon-menu .menu-icon,
.header-icon-menu .close-icon {
  background: #11111123;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.dark .header-icon-menu .menu-icon,
.header-icon-menu .close-icon {
  background: #11111123;
}

.mobile-menu {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
}

.dark .mobile-menu {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
}

* {
  color: #eeeeee;
  font-family: 'Jost', 'zenkaku', sans-serif;
}


h1,
h2,
h3 {
  text-shadow: 2px 2px 0 var(--tw-text-shadow-color, #777777);
}

body {
  background-color: #050505;
}

.dark body {
  background-color: #050505;
}

footer {
  background-color: #020202;
}

.dark footer {
  background-color: #020202;
}

.--- {
  border: 1px solid #eeeeee;
  box-shadow: 2px 2px 0 var(--tw-text-shadow-color, #777777);
  width: 250px;
  margin: 10px auto;
}

p,
a:not(header p, a) {
  font-size: 16px;
}

h1:not(.title h1) {
  font-size: 35px;
}

h2 {
  font-size: 30px;
}

h3 {
  font-size: 25px;
}

h1:not(.title h1),
h2,
h3 {
  color: #ffffff;
  position: relative;
  display: inline-block;
  padding-bottom: 10px;
}

h1:not(.title h1)::after,
h2::after,
h3::after {
  content: "";
  position: absolute;
  left: -10%;
  bottom: 0;
  width: 120%;
  height: 3px;
  background-color: #eeeeee;
  box-shadow: 2px 2px 0 var(--tw-text-shadow-color, #777777);
}

.tab-menu {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 60px;
  position: relative;
  padding: 0 40px;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

.tab-item {
  background: none;
  border: none;
  color: #888;
  font-size: 16px;
  font-weight: bold;
  padding: 15px 0;
  cursor: pointer;
  transition: color 0.3s;
  white-space: nowrap;
}

.tab-indicator {
  position: absolute;
  height: 3px;
  background-color: #fff;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* YTM風の滑らかな動き */
}

.tab-item.active {
  color: #fff;
}

.tab-content {
  display: none;
  color: white;
  padding: 20px;
}

.tab-content.active {
  display: block;
}

header {
  height: 100px;
  background: #11111123;
  padding: 20px;
  text-transform: uppercase;
  font-size: 20px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.dark header {
  background: #11111123;
}

.listkeisiki {
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
  text-align: left;
  color: white;
  line-height: 1.8;
}

.listkeisiki {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.listkeisiki {
  align-items: flex-start;
  padding: 20px 0;
}

.listkeisiki h3 {
  display: block;
  width: 100%;
  text-align: left;
  margin-bottom: 20px;
}

.listkeisiki h3::after {
  left: 0;
  width: 100%;
}

.listkeisiki a.yt {
  display: block;
  width: 100%;
  text-align: left;
  text-decoration: none;
}

.list-row {
  display: grid;
  grid-template-columns: 120px 30px 150px;
  width: fit-content;
  margin-bottom: 12px;
  font-size: 16px;
  color: white;
}

.c1 {
  text-align: left;
}

.c2 {
  text-align: center;
  color: #aaa;
}

.c3 {
  text-align: left;
}

.flex-container {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.left-col {
  white-space: nowrap;
  display: flex;
  gap: 4px;
}

.right-col {
  display: flex;
  flex-direction: column;
}

.naiyou-container {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
}

.naiyou-container.open {
  grid-template-rows: 1fr;
  opacity: 1;
  visibility: visible;
}

.naiyou {
  min-height: 0;
  color: #b8b8b8;
  padding: 10px 0 15px 15px;
  border-left: 3px solid #555;
  margin-left: 5px;
}

.yajirusi {
  display: inline-block;
  transition: transform 0.3s;
  font-size: 0.8em;
}

.yajirusi.open {
  transform: rotate(180deg);
}

.naiyou .medatu,
b {
  color: #b8b8b8;
  border-bottom: 3px solid #b8b8b8;
}

.medatu,
b {
  color: #ffffff;
  border-bottom: 3px solid #ffffff;
}

.mysns,
.yt {
  color: #ff7994;
}

.mysns,
.tw {
  color: #a1dbff;
}

.mysns,
.xb {
  color: #a0f5a0;
}

.mysns,
.st {
  color: #a6c4e7;
}

.mysns,
.ds {
  color: #a5abff;
}

.mysns,
.ln {
  color: #9bf5bf;
}

.mysns,
.nt {
  color: #969696;
}

.listkeisiki {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 20px;
}

.listkeisiki a.yt {
  display: inline-block;
  width: auto;
  text-align: left;
  text-decoration: none;
  position: relative;
}

.listkeisiki a.yt::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  transform: scaleX(0);
}

.listkeisiki a.yt:hover::after {
  transform: scaleX(1);
}

.listkeisiki {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 20px;
}

.listkeisiki a.tw {
  display: inline-block;
  width: auto;
  text-align: left;
  text-decoration: none;
  position: relative;
}

.listkeisiki a.tw::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  transform: scaleX(0);
}

.listkeisiki a.tw:hover::after {
  transform: scaleX(1);
}

.listkeisiki {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: 20px;
}

.sns-row {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 5px;
  width: 100%;
  color: #eeeeee;
  font-size: 16px;
}

/* 当たり判定バグの修正 */
.listkeisiki a {
  display: inline;
  width: auto;
  text-decoration: none;
  position: relative;
}

.listkeisiki a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
}

.listkeisiki a:hover::after {
  transform: scaleX(1);
}

.accordion-item {
  width: 100%;
  margin-bottom: 20px;
}

.toggle-head {
  display: flex !important;
  align-items: center;
  gap: 10px;
  width: fit-content;
}

.toggle-head .yajirusi {
  font-size: 0.6em;
  transition: transform 0.3s;
}

.toggle-head {
  display: flex !important;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  width: fit-content;
  position: relative;
}

.toggle-head::after {
  left: 0 !important;
  width: 100% !important;
}

.toggle-head .yajirusi {
  margin-top: 5px;
}

.listkeisiki {
  align-items: flex-start !important;
  padding-left: 20px;
}

.quote-style {
  padding-left: 0;
  margin: 5px 0 15px 0;
  color: #b8b8b8;
  line-height: 1.6;
  max-width: 600px;
  width: 90%;
  word-wrap: break-word;
  box-sizing: border-box
}

.toggle-head {
  display: flex !important;
  align-items: center;
  gap: 8px;
  width: fit-content;
}

.toggle-head::after {
  left: 0 !important;
  width: 100% !important;
}

@media screen and (max-width: 867px) {
  header {
    height: 80px;
    padding: 15px;
  }

  .top-wall-about {
    padding-top: 140px;
    padding-bottom: 200px;
  }

  h1:not(.title h1) {
    font-size: 30px;
  }

  h2 {
    font-size: 26px;
  }

  h3 {
    font-size: 22px;
  }

  .tab-menu {
    gap: 30px;
    padding: 0 20px;
  }

  .list-row {
    grid-template-columns: 100px 20px 1fr;
  }

  .--- {
    width: 200px;
  }
}

@media screen and (max-width: 580px) {
  header {
    height: 70px;
    padding: 10px;
  }

  .top-wall-about {
    padding-top: 120px;
    padding-bottom: 150px;
  }

  h1:not(.title h1) {
    font-size: 26px;
  }

  h2 {
    font-size: 24px;
  }

  h3 {
    font-size: 20px;
  }

  p,
  a:not(header p, a) {
    font-size: 14px;
  }

  .tab-menu {
    gap: 15px;
    padding: 0 10px;
  }

  .tab-item {
    font-size: 14px;
    padding: 10px 0;
  }

  .listkeisiki {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
  }

  .list-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ffffff22;
    width: 100%;
  }

  .c1 {
    font-weight: bold;
    color: #ffffff;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .c2 {
    display: none;
  }

  .c3 {
    padding-left: 0;
    font-size: 16px;
    color: #eeeeee;
  }

  .toggle-head {
    font-size: 1.1em;
    padding: 5px 0;
  }

  .quote-style {
    width: 100%;
    margin: 10px 0;
    padding: 0;
    background: none;
    border-radius: 0;
  }

  .--- {
    width: 150px;
  }
}