@charset "UTF-8";

/* ページ内リンクはスムーズスクロールせず、即座に移動させる。 */
html {
  scroll-behavior: auto;
}

:where(
  #overview,
  #promise,
  #eligibility,
  #scene,
  #policies,
  #results,
  #staff,
  #history
) {
  /* 固定ヘッダー92px + 余白24px + reveal開始位置28px */
  scroll-margin-top: 144px;
}

@media screen and (max-width: 1023px) {
  :where(
    #overview,
    #promise,
    #eligibility,
    #scene,
    #policies,
    #results,
    #staff,
    #history
  ) {
    /* 固定ヘッダー68px + 余白16px + reveal開始位置28px */
    scroll-margin-top: 112px;
  }
}

/* =========================================================
   About page head
   ========================================================= */
.about-head {
  position: relative;
  width: calc(100% - 80px);
  min-height: 370px;
  margin: 0 auto 36px;
  overflow: hidden;
  border-radius: 30px;
  background: #f5f4f1;
}

/* 下層ページのヘッダー（.page-head）と同じ背景装飾。
   このページだけ about.css を読み込むため、同じ内容をここにも持たせる。 */

/* 全面：ごく薄いドットのテクスチャ。右へ向かってフェードさせる。 */
.about-head::before {
  position: absolute;
  z-index: 0;
  inset: 0;
  background-image: radial-gradient(rgba(29, 29, 29, .055) 1.5px, transparent 1.6px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(102deg, #000 0%, rgba(0, 0, 0, .45) 44%, transparent 72%);
  mask-image: linear-gradient(102deg, #000 0%, rgba(0, 0, 0, .45) 44%, transparent 72%);
  pointer-events: none;
  content: "";
}

/* 右上：イラストの背後に回る大きな淡い円。 */
.about-head::after {
  position: absolute;
  z-index: 0;
  top: -150px;
  right: -70px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: #fff0e8;
  opacity: .55;
  pointer-events: none;
  content: "";
}

.about-head__inner {
  position: relative;
  width: calc(100% - 120px);
  min-height: 370px;
  margin: 0 auto;
}

/* 見出しの右手に小さなアクセント。 */
.about-head__inner::after {
  position: absolute;
  z-index: 0;
  top: 132px;
  right: 27%;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #ffeec4;
  opacity: .55;
  pointer-events: none;
  content: "";
}

.about-head__content {
  position: absolute;
  z-index: 1;
  top: 124px;
  left: 0;
}

.about-head__title-row {
  display: flex;
  align-items: flex-end;
}

.about-head__title {
  margin: 0;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(50px, 5.4vw, 78px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.025em;
}

.about-head__divider {
  width: 22px;
  height: 2px;
  margin: 0 18px 13px 32px;
  background: var(--color-orange);
}

.about-head__label {
  margin: 0 0 3px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
}

.about-head__illust {
  position: absolute;
  z-index: 1; /* 背景装飾より前面に。 */
  top: auto;
  right: -50px;
  bottom: 0;
  width: 500px;
  height: auto;
}

.about-tabs {
  margin-top: 40px;
}

.about-tabs__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.about-tabs__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 103px;
  height: 40px;
  padding: 0 13px 0 16px;
  border: 1px solid #d9d7d3;
  border-radius: 6px;
  background: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}

/* ボタンだと分かるように、ラベル右へ小さな矢印（シェブロン）を添える。 */
.about-tabs__link::after {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-top: 1.5px solid #b3aea6;
  border-right: 1.5px solid #b3aea6;
  transform: translateX(-1px) rotate(45deg);
  transition: border-color .2s ease, transform .2s ease;
}

.about-tabs__link:hover,
.about-tabs__link:focus-visible {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.about-tabs__link:hover::after,
.about-tabs__link:focus-visible::after {
  border-top-color: currentColor;
  border-right-color: currentColor;
  transform: translateX(1px) rotate(45deg);
}

.about-tabs__link.is-current {
  min-width: 80px;
  border-color: var(--color-orange);
  background: var(--color-orange);
  color: var(--color-white);
}

/* 開いているページのタブは「今ここ」を示すため矢印を下向きにする。 */
.about-tabs__link.is-current::after,
.about-tabs__link.is-current:hover::after,
.about-tabs__link.is-current:focus-visible::after {
  border-top-color: currentColor;
  border-right-color: currentColor;
  transform: translateY(-1px) rotate(135deg);
}

/* =========================================================
   Overview
   ========================================================= */
.about-overview {
  position: relative;
  min-height: 605px;
  overflow: hidden;
  background: var(--color-white);
}

.about-overview__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 676px) minmax(0, 1fr);
  gap: 102px;
  width: calc(100% - 120px);
  max-width: 1320px;
  margin: 0 auto;
  padding-top: 86px;
}

.about-overview__visual {
  position: relative;
  height: 412px;
  margin: 0;
}

.about-overview__photo {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  object-fit: cover;
}

.about-overview__runners {
  position: absolute;
  right: -60px;
  bottom: -58px;
  width: 300px;
  height: auto;
  pointer-events: none;
}

.about-overview__content {
  padding-top: 3px;
}

.about-overview__label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-overview__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-orange);
}

.about-overview__title {
  margin: 17px 0 31px;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-overview__text {
  max-width: 505px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.82;
  letter-spacing: .035em;
}

.about-overview__text p {
  margin: 0;
}

.about-overview__text strong {
  font-weight: 700;
}

.about-overview__deco {
  position: absolute;
  border-radius: 22px;
  pointer-events: none;
}

.about-overview__deco--top {
  top: 0;
  right: 22.15%;
  width: 85px;
  height: 89px;
  background: #fff0e8;
}

.about-overview__deco--right {
  top: 320px;
  right: -26px;
  width: 89px;
  height: 90px;
  background: #fff8e5;
}

.about-overview__deco--bottom {
  right: 13.8%;
  bottom: 53px;
  width: 84px;
  height: 90px;
  background: #fff0e8;
}

/* =========================================================
   4 Promises
   ========================================================= */
.about-promise {
  padding: 14px 0 53px;
}

.about-promise__panel {
  width: calc(100% - 120px);
  max-width: 1320px;
  min-height: 832px;
  margin: 0 auto;
  padding: 81px 40px 90px;
  border-radius: 30px;
  background: var(--color-orange);
  color: var(--color-white);
}

.about-promise__head {
  text-align: center;
}

.about-promise__label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-promise__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: #f2d700;
}

.about-promise__title {
  margin: 19px 0 0;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-promise__list {
  position: relative;
  left: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 49px 48px;
  width: 100%;
  max-width: 1150px;
  margin: 61px auto 0;
}

.about-promise__card {
  position: relative;
  display: grid;
  grid-template-columns: 181px minmax(0, 1fr);
  align-items: center;
  min-height: 224px;
  padding: 28px 32px 25px 31px;
  border-radius: 20px;
  background: var(--color-white);
  color: var(--color-ink);
}

.about-promise__number {
  position: absolute;
  top: -11px;
  left: -11px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #f2d700;
  color: var(--color-orange);
  font-family: var(--font-en);
  font-size: 25px;
  font-weight: 700;
  line-height: 1;
}

.about-promise__image {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: 0;
}

.about-promise__image img {
  width: auto;
  max-width: 174px;
  max-height: 145px;
  object-fit: contain;
}

.about-promise__body h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -.02em;
}

.about-promise__body p {
  margin: 20px 0 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: .035em;
}

/* =========================================================
   Eligibility
   ========================================================= */
.about-eligibility {
  padding: 65px 0 75px;
  background: var(--color-white);
}

.about-eligibility__inner {
  display: grid;
  grid-template-columns: minmax(0, 500px) minmax(0, 615px);
  align-items: center;
  justify-content: space-between;
  gap: 80px;
  width: calc(100% - 120px);
  max-width: 1200px;
  margin: 0 auto;
}

.about-eligibility__label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-eligibility__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-orange);
}

.about-eligibility__title {
  margin: 18px 0 30px;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-eligibility__text {
  max-width: 490px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: .035em;
}

.about-eligibility__visual {
  height: 364px;
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  background: #f5f4f1;
}

.about-eligibility__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  mix-blend-mode: multiply;
  transform: translateY(clamp(28px, 2.4vw, 34px)) scale(1.05);
  transform-origin: center top;
}

/* =========================================================
   Policies
   ========================================================= */
.about-policies {
  padding: 35px 0 42px;
  background: var(--color-white);
}

.about-policies__inner {
  width: calc(100% - 120px);
  max-width: 960px;
  margin: 0 auto;
}

.about-policies__head {
  text-align: center;
}

.about-policies__label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-policies__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-orange);
}

.about-policies__title {
  margin: 18px 0 27px;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-policies__lead {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: .035em;
}

.about-policies__links {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(0, 1fr);
  gap: 20px;
  margin-top: 33px;
}

.about-policies__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 66px;
  padding: 0 48px;
  border-radius: 10px;
  background: #f3f2ee;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: background-color .2s ease, color .2s ease;
}

.about-policies__link svg {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: #aaa7a3;
  transition: color .2s ease, transform .2s ease;
}

.about-policies__link:hover,
.about-policies__link:focus-visible {
  background: #ebe9e4;
  color: var(--color-orange);
}

.about-policies__link:hover svg,
.about-policies__link:focus-visible svg {
  color: var(--color-orange);
  transform: translate(2px, -2px);
}

/* =========================================================
   Staff
   ========================================================= */
.about-staff {
  padding: 78px 0 31px;
  background: var(--color-white);
}

.about-staff__panel {
  position: relative;
  width: calc(100% - 120px);
  max-width: 1320px;
  min-height: 577px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 30px;
  background: #f3f2ee;
}

.about-staff__content {
  position: absolute;
  z-index: 3;
  top: 121px;
  left: 50%;
  width: 610px;
  text-align: center;
  transform: translateX(-50%);
}

.about-staff__label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-staff__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-orange);
}

.about-staff__title {
  margin: 18px 0 32px;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-staff__text {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: .035em;
}

.about-staff__button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  width: 322px;
  min-height: 77px;
  margin: 36px auto 0;
  border-radius: 11px;
  background: var(--color-orange);
  color: var(--color-white);
  font-size: 17px;
  font-weight: 700;
  transition: background-color .2s ease, transform .2s ease;
}

.about-staff__button svg {
  width: 20px;
  height: 16px;
  transition: transform .2s ease;
}

.about-staff__button:hover,
.about-staff__button:focus-visible {
  background: #d84b02;
  transform: translateY(-2px);
}

.about-staff__button:hover svg,
.about-staff__button:focus-visible svg {
  transform: translateX(3px);
}

.about-staff__photo {
  position: absolute;
  z-index: 1;
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
}

.about-staff__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-staff__photo--students-top {
  top: 20px;
  left: 20px;
  width: 367px;
  height: 255px;
}

.about-staff__photo--computer-top {
  top: 20px;
  right: 20px;
  width: 245px;
  height: 271px;
}

.about-staff__photo--computer-bottom {
  bottom: 20px;
  left: 20px;
  width: 245px;
  height: 271px;
}

.about-staff__photo--students-bottom {
  right: 20px;
  bottom: 20px;
  width: 367px;
  height: 255px;
}

.about-staff__deco {
  position: absolute;
  z-index: 2;
  height: auto;
  pointer-events: none;
}

.about-staff__deco--lightbulb {
  top: 82px;
  right: 172px;
  width: 250px;
}

.about-staff__deco--runners {
  bottom: 10px;
  left: 158px;
  width: 312px;
}

/* =========================================================
   History link
   ========================================================= */
.about-history {
  padding: 30px 0 80px;
  background: var(--color-white);
}

.about-history__card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: calc(100% - 120px);
  max-width: 1320px;
  min-height: 240px;
  margin: 0 auto;
  padding: 46px 80px;
  overflow: hidden;
  border-radius: 30px;
  background: #f3f2ee;
  transition: background-color .25s ease, transform .25s ease;
}

.about-history__content {
  position: relative;
  z-index: 1;
  display: block;
}

.about-history__label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.about-history__label::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-orange);
}

.about-history__title {
  display: block;
  margin: 14px 0 0;
  font-family: "Geist", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(34px, 4.1vw, 58px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
}

.about-history__text {
  display: block;
  margin-top: 24px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: .035em;
}

.about-history__arrow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-orange);
  color: var(--color-white);
  transition: background-color .2s ease, transform .25s ease;
}

.about-history__arrow svg {
  width: 24px;
  height: 20px;
}

.about-history__deco {
  position: absolute;
  border-radius: 22px;
  pointer-events: none;
}

.about-history__deco--top {
  top: -30px;
  right: 24%;
  width: 86px;
  height: 90px;
  background: #fff0e8;
}

.about-history__deco--bottom {
  right: 11%;
  bottom: -34px;
  width: 88px;
  height: 92px;
  background: #fff8e5;
}

.about-history__card:hover,
.about-history__card:focus-visible {
  background: #ebe9e4;
  transform: translateY(-3px);
}

.about-history__card:hover .about-history__arrow,
.about-history__card:focus-visible .about-history__arrow {
  background: #d84b02;
  transform: translateX(5px);
}

@media screen and (max-width: 1023px) {
  .about-head {
    width: calc(100% - 32px);
    min-height: 0;
    margin-bottom: 28px;
    border-radius: 22px;
  }

  .about-head__inner {
    width: 100%;
    min-height: 0;
    padding: 48px 28px 28px;
  }

  .about-head::after {
    top: -130px;
    right: -80px;
    width: 280px;
    height: 280px;
  }

  .about-head__inner::after {
    top: 24px;
    right: 30%;
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .about-head__content {
    position: relative;
    top: auto;
    left: auto;
  }

  .about-head__title { font-size: clamp(41px, 6.5vw, 63px); }

  .about-head__title-row { align-items: center; }

  .about-head__divider {
    margin: 14px 10px 0 20px;
  }

  .about-head__label {
    margin: 14px 0 0;
    font-size: clamp(14px, 2.5vw, 17px);
  }

  .about-head__illust {
    top: auto;
    right: -100px;
    bottom: 0;
    width: 380px;
    opacity: .9;
  }

  .about-tabs {
    position: relative;
    z-index: 2;
    margin-top: 56px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .about-tabs::-webkit-scrollbar { display: none; }

  .about-tabs__list { width: max-content; }

  .about-overview {
    min-height: 0;
    padding: 58px 0 76px;
  }

  .about-overview__inner {
    display: flex;
    flex-direction: column;
    gap: 58px;
    width: calc(100% - 64px);
    max-width: 680px;
    padding-top: 0;
  }

  .about-overview__visual {
    width: calc(100% - 36px);
    height: auto;
    aspect-ratio: 1.64 / 1;
  }

  .about-overview__runners {
    right: -54px;
    bottom: -44px;
    width: min(42vw, 250px);
  }

  .about-overview__content {
    padding-top: 0;
  }

  .about-overview__title {
    margin: 15px 0 26px;
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-overview__text {
    max-width: none;
  }

  .about-overview__deco--top {
    top: 18px;
    right: 8%;
    width: 68px;
    height: 70px;
  }

  .about-overview__deco--right {
    top: 48%;
    width: 70px;
    height: 72px;
  }

  .about-overview__deco--bottom {
    right: 8%;
    bottom: 20px;
    width: 66px;
    height: 70px;
  }

  .about-promise {
    padding: 0 0 42px;
  }

  .about-promise__panel {
    width: calc(100% - 32px);
    min-height: 0;
    padding: 64px 48px 72px;
    border-radius: 24px;
  }

  .about-promise__title {
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-promise__list {
    left: 0;
    grid-template-columns: 1fr;
    gap: 38px;
    max-width: 620px;
    margin-top: 54px;
  }

  .about-promise__card {
    grid-template-columns: 38% minmax(0, 1fr);
  }

  .about-eligibility {
    padding: 64px 0 72px;
  }

  .about-eligibility__inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 44px;
    width: calc(100% - 64px);
    max-width: 680px;
  }

  .about-eligibility__title {
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-eligibility__text {
    max-width: none;
  }

  .about-eligibility__visual {
    width: 100%;
    height: auto;
    aspect-ratio: 1.69 / 1;
  }

  .about-policies {
    padding: 64px 0;
  }

  .about-policies__inner {
    width: calc(100% - 64px);
    max-width: 680px;
  }

  .about-policies__title {
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-policies__links {
    grid-template-columns: 1fr;
    gap: 14px;
    max-width: 600px;
    margin-right: auto;
    margin-left: auto;
  }

  .about-staff {
    padding: 64px 0 32px;
  }

  .about-staff__panel {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    width: calc(100% - 32px);
    max-width: 680px;
    min-height: 0;
    padding: 56px 28px 28px;
    border-radius: 24px;
  }

  .about-staff__content {
    position: relative;
    top: auto;
    left: auto;
    grid-column: 1 / -1;
    width: auto;
    margin-bottom: 28px;
    transform: none;
  }

  .about-staff__title {
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-staff__photo {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    aspect-ratio: 1.44 / 1;
    border-radius: 14px;
  }

  .about-staff__photo--students-top,
  .about-staff__photo--computer-top,
  .about-staff__photo--computer-bottom,
  .about-staff__photo--students-bottom {
    inset: auto;
    width: 100%;
    height: auto;
  }

  .about-staff__deco {
    display: none;
  }

  .about-history {
    padding: 32px 0 64px;
  }

  .about-history__card {
    width: calc(100% - 32px);
    max-width: 680px;
    min-height: 220px;
    padding: 42px 48px;
    border-radius: 24px;
  }

  .about-history__title {
    font-size: clamp(34px, 4.1vw, 58px);
  }

  .about-history__arrow {
    width: 64px;
    height: 64px;
  }
}

@media screen and (max-width: 599px) {
  .js .reveal-section {
    opacity: 1;
    transform: none;
    transition: none;
    will-change: auto;
  }

  .about-head {
    min-height: 120px;
    margin-bottom: 18px;
    border-radius: 14px;
  }

  .about-head__inner {
    display: flex;
    align-items: center;
    min-height: 120px;
    padding: 0 18px;
  }

  .about-head::before { background-size: 18px 18px; }

  .about-head::after {
    top: -110px;
    right: -90px;
    width: 230px;
    height: 230px;
  }

  /* 画面が狭いと見出しに重なるため、小さなアクセントは非表示にする。 */
  .about-head__inner::after { display: none; }

  .about-head__title-row {
    display: block;
  }

  .about-head__title { font-size: 32px; }

  .about-head__divider {
    display: inline-block;
    width: 16px;
    margin: 12px 7px 3px 0;
  }

  .about-head__label {
    display: inline-block;
    margin-top: 8px;
    font-size: 12px;
  }

  .about-head__illust {
    top: auto;
    right: 0;
    bottom: 0;
    width: 145px;
    opacity: .42;
  }

  .about-tabs { display: none; }

  .about-tabs__link {
    gap: 7px;
    min-width: auto;
    height: 38px;
    padding: 0 12px 0 14px;
    font-size: 13px;
  }

  .about-tabs__link::after { width: 4px; height: 4px; }

  .about-tabs__link.is-current { min-width: 68px; }

  .about-overview {
    padding: 24px 0 62px;
  }

  .about-overview__inner {
    gap: 48px;
    width: calc(100% - 40px);
  }

  .about-overview__visual {
    width: calc(100% - 22px);
    min-height: 228px;
    aspect-ratio: 1.35 / 1;
  }

  .about-overview__photo {
    border-radius: 14px;
  }

  .about-overview__runners {
    right: -42px;
    bottom: -37px;
    width: 170px;
  }

  .about-overview__label {
    font-size: 13px;
  }

  .about-overview__title {
    margin-bottom: 22px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-overview__text {
    font-size: 14px;
    line-height: 1.85;
  }

  .about-overview__deco--top {
    width: 52px;
    height: 54px;
    border-radius: 16px;
  }

  .about-promise {
    padding-bottom: 30px;
  }

  .about-promise__panel {
    width: calc(100% - 24px);
    padding: 50px 20px 48px;
    border-radius: 20px;
  }

  .about-promise__label {
    font-size: 13px;
  }

  .about-promise__title {
    margin-top: 14px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-promise__list {
    gap: 34px;
    margin-top: 44px;
  }

  .about-promise__card {
    display: block;
    min-height: 0;
    padding: 54px 24px 30px;
    text-align: center;
  }

  .about-promise__number {
    top: -10px;
    left: -5px;
    width: 58px;
    height: 58px;
    font-size: 23px;
  }

  .about-promise__image {
    height: 138px;
    margin-bottom: 20px;
  }

  .about-promise__image img {
    max-width: 180px;
    max-height: 138px;
  }

  .about-promise__body h3 {
    font-size: 18px;
    line-height: 1.55;
  }

  .about-promise__body p {
    margin-top: 14px;
    font-size: 14px;
    line-height: 1.8;
    text-align: left;
  }

  .about-eligibility {
    padding: 52px 0 60px;
  }

  .about-eligibility__inner {
    gap: 36px;
    width: calc(100% - 40px);
  }

  .about-eligibility__label {
    font-size: 13px;
  }

  .about-eligibility__title {
    margin: 14px 0 22px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-eligibility__text {
    font-size: 14px;
    line-height: 1.85;
  }

  .about-eligibility__visual {
    border-radius: 14px;
  }

  .about-policies {
    padding: 52px 0 56px;
  }

  .about-policies__inner {
    width: calc(100% - 40px);
  }

  .about-policies__label {
    font-size: 13px;
  }

  .about-policies__title {
    margin: 14px 0 22px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-policies__lead {
    font-size: 14px;
    line-height: 1.85;
  }

  .about-policies__lead br {
    display: none;
  }

  .about-policies__links {
    margin-top: 30px;
  }

  .about-policies__link {
    min-height: 64px;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 14px;
  }

  .about-policies__link svg {
    width: 18px;
    height: 18px;
  }

  .about-staff {
    padding: 52px 0 24px;
  }

  .about-staff__panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    width: calc(100% - 24px);
    padding: 48px 18px 18px;
    border-radius: 20px;
  }

  .about-staff__content {
    margin-bottom: 22px;
  }

  .about-staff__label {
    font-size: 13px;
  }

  .about-staff__title {
    margin: 14px 0 22px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-staff__text {
    font-size: 14px;
    line-height: 1.85;
  }

  .about-staff__text br {
    display: none;
  }

  .about-staff__button {
    width: min(100%, 300px);
    min-height: 64px;
    margin-top: 30px;
    border-radius: 9px;
    font-size: 15px;
  }

  .about-staff__photo--computer-top,
  .about-staff__photo--computer-bottom {
    display: none;
  }

  .about-history {
    padding: 24px 0 52px;
  }

  .about-history__card {
    align-items: flex-end;
    width: calc(100% - 24px);
    min-height: 0;
    padding: 38px 24px;
    border-radius: 20px;
  }

  .about-history__label {
    font-size: 13px;
  }

  .about-history__title {
    margin-top: 12px;
    font-size: clamp(28px, 5.6vw, 34px);
  }

  .about-history__text {
    margin-top: 20px;
    padding-right: 20px;
    font-size: 14px;
    line-height: 1.85;
  }

  .about-history__text br {
    display: none;
  }

  .about-history__arrow {
    width: 52px;
    height: 52px;
  }

  .about-history__arrow svg {
    width: 20px;
    height: 17px;
  }

  .about-history__deco--top {
    right: 20%;
    width: 58px;
    height: 62px;
    border-radius: 16px;
  }

  .about-history__deco--bottom {
    display: none;
  }
}