@charset "UTF-8";

:root {
  --header-h: 5vh;
  /* ヘッダーの見た目の高さ */
  --footer-h: 5vh;
  /* フッターの見た目の高さ */
  --base-c: #0D0D0D;
  --brand-c: #0D0D0D;
  --text-c: #F2F2F2;
}

body {
  background: var(--brand-c);
  color: var(--text-c);
}

.max-area {
  width: 100%;
  min-height: 100svh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

@supports (min-height: 100dvh) {
  .max-area {
    min-height: 100dvh;
  }
}

.site-header-area {
  width: 100%;
  min-height: var(--header-h);
  background-color: var(--brand-c);
  position: sticky;
  top: 0;
  left: 0;
  z-index: 999;
}

.site-footer-area {
  width: 100%;
  min-height: var(--footer-h);
  padding-bottom: env(safe-area-inset-bottom);
  /* iOS下部安全域 */
  background-color: var(--brand-c);
}

.bg-fixed-area {
  width: 100%;
  min-height: 0;
  position: relative;
}

.bg-fixed-area::before {
  content: "";
  display: block;
  position: fixed;
  top: var(--header-h);
  left: 0;
  z-index: -1;
  width: 100%;
  height: calc(100svh - var(--header-h));
  background-color: var(--base-c);
  /*background-image: url("/assets/pages/teaser/img/bg-img01.webp");*/
  /*background-blend-mode: overlay;*/
  /*background-size: cover;
  background-repeat: no-repeat;
  background-position: bottom center;*/
}

/*@media print,
screen and (min-width: 835px) {
  .bg-fixed-area::before {
    background-image: url("/assets/pages/teaser/img/bg-img01.webp");
    background-size: cover;
    background-position: bottom center;
  }
}*/

@supports (height: 100dvh) {
  .bg-fixed-area::before {
    height: calc(100dvh - var(--header-h));
  }
}

.site-main {
  width: 100%;
  min-height: calc(100svh - var(--header-h) - var(--footer-h));
  margin: 0 auto;
  padding: 0;
  display: grid;
  align-items: center;
}

@supports (min-height: 100dvh) {
  .site-main {
    min-height: calc(100dvh - var(--header-h) - var(--footer-h));
  }
}


/* =========================================================
 * コンテンツ
 * ========================================================= */
.hero {
  width: min(90%, 1200px);
  margin: 0 auto;
  padding: 0;
  align-self: center;
}

.hero-wide {
  width: min(90%, 1440px);
  margin: 0 auto;
  padding: 0;
  align-self: center;
}

.hero-full {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 0;
  align-self: center;
}

.title-con {
  width: min(100%, 1080px);
  margin: 0 auto 5vh;
  height: auto;
}

.langselect-con {
  width: min(100%, 480px);
  margin: 0 auto;
  padding: 1em 1em 1.5em;
  height: auto;
  border: 1px solid var(--text-c);
  border-radius: 8px;
}

.langselect-inner {
  width: 90%;
  margin: 0 auto 0;
}

.lang-copy {
  margin: 0 0 1.25em;
  /*360–834px：400px≈18px、834px≈22px*/
  font-size: clamp(1.102rem, calc(0.895rem + 0.922vw), 1.375rem);
  font-weight: 400;
  color: var(--text-c);
  text-align: center;
}

.stack {
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.langselect-inner .lang {
  display: block;
  width: 100%;
  padding: 12px 14px;
  /*360–834px：400px≈18px、834px≈22px*/
  font-size: clamp(1.102rem, calc(0.895rem + 0.922vw), 1.375rem);
  font-weight: 600;
  color: var(--brand-c);
  border-radius: 8px;
  background: var(--text-c);
  text-align: center;
  text-decoration: none;
  transition: opacity .4s ease;
}

.langselect-inner .lang:visited {
  color: var(--brand-c);
}

.index-caution-area {
  width: min(90%, 520px);
  margin: 2.5vh auto 0;
  text-align: center;
}

.index-caution {
  display: inline-block;
  text-align: left;
  color: var(--text-c);
  /*360–834px：400px≈14px、834px≈16px*/
  font-size: clamp(0.863rem, calc(0.760rem + 0.461vw), 1rem);
}

.index-caution span {
  margin-top: 1em;
  display: inline-block;
  text-align: left;
  line-height: 2;
}


@media print,
screen and (min-width: 835px) {

  .langselect-con {
    width: min(100%, 640px);
    padding: 2em 1em 2.5em;
  }

  .langselect-inner {
    width: 100%;
  }

  .stack {
    width: 60%;
  }

  .langselect-inner .lang:hover,
  .langselect-inner .lang:focus-visible {
    opacity: 0.5;
  }

  .index-caution-area {
    width: min(100%, 768px);
  }
}


/* =========================================================
 * ヘッダー非表示セット
 * ========================================================= */
.site-header-area {
  opacity: 0;
}

.bg-fixed-area::before {
  top: 0;
  height: 100svh;
}

@supports (height: 100dvh) {
  .bg-fixed-area::before {
    height: 100dvh;
  }
}

.site-main {
  padding: 0;
}


/* =========================================================
 * フッター非表示セット
 * ========================================================= */
.site-footer-area {
  opacity: 0;
}


/* =========================================================
 * ユーティリティ
 * ========================================================= */
@media screen and (max-width: 639px) {
  .sp-s_none {
    display: none;
  }
}

@media screen and (min-width: 640px) and (max-width: 834px) {
  .sp-m_none {
    display: none;
  }
}

@media screen and (max-width: 834px) {
  .sp_none {
    display: none;
  }
}

@media print,
screen and (min-width: 835px) {
  .pc_none {
    display: none;
  }
}

.text-jp {
  font-family: "Noto Sans JP", "Noto Sans", "Noto Sans SC",
    system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

.text-cn {
  font-family: "Noto Sans SC", "Noto Sans", "Noto Sans JP",
    system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

.text-en {
  font-family: "Noto Sans", "Noto Sans JP", "Noto Sans SC",
    system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}