/* ------------------------------ */
/* page: top */
/* ------------------------------ */
.kv {
  position: relative;
  height: 700px;
  color: var(--color-text);
}

.kv__bg {
  position: absolute;
  inset: 0;
  background: url("../../assets/img/top_kv.webp") center / cover no-repeat;
  animation: kvFvRevealBg 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.kv__inner {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}

.kv__title {
  position: relative;
  z-index: 0;
  display: block;
  width: fit-content;
  max-width: min(100%, 920px);
  margin-inline: auto;
  padding: 0.45em 0.75em;
  box-sizing: border-box;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 48px;
  line-height: 1.2;
  letter-spacing: 0.2em;
  text-align: center;
  animation: kvFvRevealTitle 1.65s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1.15s both;
}

/* kv-copy_bg.png：コピー背面のキラ感＋軽いトゥインクル */
.kv__title::before {
  content: "";
  position: absolute;
  inset: -8px -14px;
  z-index: -1;
  background: url("../../assets/img/kv-copy_bg.png") center / cover no-repeat;
  pointer-events: none;
  animation: kvTitleGlitter 3.2s ease-in-out infinite;
}

@keyframes kvTitleGlitter {
  0%,
  100% {
    opacity: 0.9;
    filter: brightness(1);
  }

  35% {
    opacity: 1;
    filter: brightness(1.14) saturate(1.06);
  }

  65% {
    opacity: 0.94;
    filter: brightness(1.06) saturate(1.1);
  }
}

/* FV：背景・コピー・バナーをふわっと表示 */
@keyframes kvFvRevealBg {
  from {
    opacity: 0;
    transform: scale(1.03);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes kvFvRevealTitle {
  from {
    opacity: 0;
    transform: translateY(22px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes kvFvRevealBanner {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* FV右下：バナーは1枚画像（assets/img/kv_banner.webp）。画面右端に揃える */
.kvBanner {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 2;
  line-height: 0;
  animation: kvFvRevealBanner 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1.95s both;
}

.kvBanner__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.kvBanner__link:focus-visible {
  outline: 2px solid var(--color-corporate, #c00);
  outline-offset: 2px;
}

.kvBanner__img {
  display: block;
  width: auto;
  max-width: min(252px, 42vw);
  height: auto;
  transition: transform 0.25s ease, filter 0.25s ease;
}

.kvBanner__link:hover .kvBanner__img,
.kvBanner__link:focus-visible .kvBanner__img {
  transform: scale(1.04);
  filter: brightness(1.03);
}

@media (prefers-reduced-motion: reduce) {
  .kv__bg,
  .kv__title,
  .kvBanner {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .kv__title::before {
    animation: none;
    opacity: 1;
    filter: none;
  }

  .kvBanner__img {
    transition-duration: 0.01ms;
  }

  .kvBanner__link:hover .kvBanner__img,
  .kvBanner__link:focus-visible .kvBanner__img {
    transform: none;
    filter: none;
  }
}

/* ------------------------------ */
/* MISSION（1280基準：奥 590×465 / 手前 480×350 重ね） */
/* ------------------------------ */
.mission {
  /* 1280設計幅に合わせたスケール。100vw はスクロールバー込みのため 1280px 付近で 590 に届かないことがある */
  --mission-img-back-w: min(590px, calc(100vw * 590 / 1280));
  --mission-img-front-w: min(480px, calc(100vw * 480 / 1280));
}

@media (min-width: 1280px) {
  .mission {
    --mission-img-back-w: 590px;
    --mission-img-front-w: 480px;
  }
}

.mission__layout {
  width: min(var(--site-layout-width), 100%);
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 200px;
}

.mission__body {
  margin-top: clamp(48px, 6vw, 80px);
}

.mission__head {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.mission__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(52px, 6.7vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.mission__sideLabel {
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.6;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text);
}

.mission__media {
  position: relative;
  grid-column: 1;
  grid-row: 1;
  width: var(--mission-img-back-w);
  justify-self: start;
  margin-left: 0;
}

.mission__figure {
  margin: 0;
}

.mission__img {
  display: block;
  box-sizing: border-box;
  height: auto;
  object-fit: cover;
}

.mission__img--back {
  width: var(--mission-img-back-w);
  aspect-ratio: 590 / 465;
}

.mission__figure--front {
  position: absolute;
  right: clamp(-20px, -2.5vw, -48px);
  bottom: clamp(-16px, -2vw, -40px);
  z-index: 1;
  margin: 0;
}

.mission__img--front {
  width: var(--mission-img-front-w);
  max-width: min(100%, 90vw);
  aspect-ratio: 480 / 350;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.mission__content {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
  min-width: 0;
}

.mission__lead {
  margin: 0;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.mission__text {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 20px;
  line-height: 2;
  letter-spacing: 0.02em;
  color: var(--color-text);
  font-weight: 600;
}

.mission__more {
  margin-top: clamp(28px, 4vw, 40px);
}

.mission__more.button--outline::after {
  content: "→";
  margin-left: 10px;
  font-size: 14px;
  line-height: 1;
}

/* ------------------------------ */
/* BUSINESS（見出し横並び＋縦書き／キャッチ中央／2カラム段差／下にMORE） */
/* ------------------------------ */
.business__layout {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 5vw, 64px);
}

.business__head {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.business__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(52px, 6.7vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.business__sideLabel {
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.6;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text);
}

.business__lead {
  margin: 0;
  text-align: center;
  font-weight: 600;
  font-size: 40px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--color-text);
  max-width: 40em;
  margin-inline: auto;
}

.business__columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.business__col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.business__col--analog {
  margin-top: clamp(56px, 11vw, 140px);
}

.business__media {
  margin: 0;
  width: 100%;
  overflow: hidden;
  border-radius: 4px;
}

.business__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 560 / 360;
}

.business__tag {
  margin: clamp(16px, 2vw, 22px) 0 0;
  padding: 7px 16px;
  border: 1px solid rgba(0, 0, 0, 0.22);
  border-radius: 999px;
  font-size: 12px;
  line-height: 1.3;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--color-text);
}

.business__heading {
  margin: clamp(14px, 2vw, 20px) 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  font-family: var(--font-latin);
  font-weight: 700;
  font-size: 25px;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.business__heading--plain {
  display: block;
  font-family: inherit;
}

.business__headingLogo {
  display: block;
  height: 22px;
  width: auto;
}

.business__desc {
  margin: clamp(12px, 1.5vw, 16px) 0 0;
  font-size: 18px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.business__serviceLink {
  margin-top: clamp(18px, 2.5vw, 24px);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}

.business__serviceLink:hover {
  opacity: 0.75;
}

.business__serviceLink::after {
  content: " →";
  text-decoration: none;
}

.business__footer {
  display: flex;
  justify-content: center;
  margin-top: clamp(8px, 2vw, 16px);
}

.business__more.button--outline::after {
  content: "→";
  margin-left: 12px;
  font-size: 14px;
  line-height: 1;
}

/* ------------------------------ */
/* CASE STUDY（TOP：薄い青灰BG／3カラムカード／画像上ラベル／中央MORE） */
/* ------------------------------ */
.caseStudy {
  background: var(--color-accent);
}

.caseStudy__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 5vw, 56px);
}

.caseStudy__head {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.caseStudy__title {
  margin: 0;
  font-family: var(--font-latin);
  font-weight: 500;
  font-size: clamp(52px, 6.7vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.caseStudy__sideLabel {
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.6;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text);
}

.caseStudy__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}

.caseStudyCard {
  margin: 0;
  min-width: 0;
}

.caseStudyCard__link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.caseStudyCard__link:hover .caseStudyCard__img {
  transform: scale(1.02);
}

.caseStudyCard__link:focus-visible {
  outline: 2px solid var(--color-corporate, #b50c18);
  outline-offset: 4px;
  border-radius: 4px;
}

.caseStudyCard__visual {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 4 / 3;
  background: var(--color-gray, #dadada);
}

.caseStudyCard__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.caseStudyCard__labels {
  position: absolute;
  left: clamp(10px, 1.5vw, 16px);
  bottom: clamp(10px, 1.5vw, 16px);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  max-width: calc(100% - 24px);
}

.caseStudyCard__label {
  display: inline-block;
  padding: 7px 12px;
  background: var(--color-white);
  font-size: 11px;
  line-height: 1.35;
  letter-spacing: 0.04em;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.caseStudyCard__label--lg {
  font-size: 12px;
  padding: 8px 14px;
}

.caseStudyCard__date {
  display: block;
  margin-top: clamp(14px, 2vw, 18px);
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--color-gray-646464, #646464);
}

.caseStudyCard__text {
  margin: clamp(10px, 1.5vw, 14px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.caseStudyCard__meta {
  margin: clamp(12px, 1.8vw, 16px) 0 0;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.caseStudy__footer {
  display: flex;
  justify-content: center;
  margin-top: clamp(4px, 1vw, 8px);
}

.caseStudy__more {
  min-width: min(360px, 100%);
  max-width: 100%;
}

.caseStudy__more.button--outline::after {
  content: "→";
  margin-left: 12px;
  font-size: 14px;
  line-height: 1;
}

/* ------------------------------ */
/* COMPANY（見出し＋縦書き／STORY大型バナー／3カード） */
/* ------------------------------ */
.company__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 5vw, 56px);
}

.company__head {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.company__title {
  margin: 0;
  font-family: var(--font-latin);
  font-weight: 500;
  font-size: clamp(52px, 6.7vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.company__sideLabel {
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.6;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text);
}

.companyStory {
  position: relative;
  display: block;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  min-height: clamp(220px, 36vw, 400px);
  border-bottom: 5px solid #3C3C3C;
}

.companyStory:focus-visible {
  outline: 2px solid var(--color-corporate, #b50c18);
  outline-offset: 4px;
}

.companyStory__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.25) translateX(10%);
  transition: transform 0.35s ease;
}

.companyStory:hover .companyStory__img,
.companyStory:focus-visible .companyStory__img {
  transform: scale(1.29) translateX(10%);
}

.companyStory__overlay {
  position: relative;
  width: 60%;
  z-index: 1;
  min-height: clamp(220px, 36vw, 400px);
  display: flex;
  align-items: center;
  padding: clamp(24px, 4vw, 48px) clamp(24px, 4vw, 56px);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.80) 0%, rgba(255, 255, 255, 0.70) 60%, rgba(255, 255, 255, 0.00) 100%);
}

.companyStory__textBlock {
  max-width: min(420px, 90vw);
  text-align: center;
  color: var(--color-text);
}

.companyStory__kicker {
  margin: 0;
  font-family: var(--font-latin);
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: 0.14em;
}

.companyStory__rule {
  display: block;
  width: 1px;
  height: 36px;
  margin: 14px auto 0;
  background: var(--color-text);
  opacity: 0.95;
}

.companyStory__heading {
  margin: 16px 0 0;
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.55;
  letter-spacing: 0.04em;
}

.companyStory__circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: clamp(18px, 2.5vw, 24px) auto 0;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  border: 1px solid var(--color-text);
}

.companyStory__circle::after {
  content: "";
  width: 7px;
  height: 7px;
  margin-left: -2px;
  border-right: 2px solid var(--color-text);
  border-bottom: 2px solid var(--color-text);
  transform: rotate(-45deg);
}

.companyStory__credit {
  position: absolute;
  right: clamp(14px, 2vw, 28px);
  bottom: clamp(12px, 2vw, 20px);
  z-index: 2;
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--color-text);
  background: var(--color-white);
}

.company__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.5vw, 32px);
}

.companyMiniCard {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-gray, #dadada);
  border-bottom: 5px solid #3C3C3C;

}

.companyMiniCard:focus-visible {
  outline: 2px solid var(--color-corporate, #b50c18);
  outline-offset: 4px;
}

.companyMiniCard__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.companyMiniCard:hover .companyMiniCard__img {
  transform: scale(1.04);
}

.companyMiniCard__title {
  position: absolute;
  top: clamp(14px, 2vw, 20px);
  left: clamp(14px, 2vw, 20px);
  z-index: 1;
  max-width: calc(100% - 56px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  font-weight: 500;
  font-size: 25px;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.companyMiniCard__titleLine {
  display: block;
  width: fit-content;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--color-white);
  font-family: var(--font-display);
  padding: 0 4px;
}

.companyMiniCard__go {
  position: absolute;
  right: clamp(14px, 2vw, 20px);
  bottom: clamp(14px, 2vw, 20px);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-white);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.companyMiniCard__go::after {
  content: "";
  width: 7px;
  height: 7px;
  margin-left: -2px;
  border-right: 2px solid var(--color-text);
  border-bottom: 2px solid var(--color-text);
  transform: rotate(-45deg);
}

/* ------------------------------ */
/* NEWS（TOP：news.css の newsItem を流用） */
/* ------------------------------ */
.news__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 4vw, 48px);
}

.news__head {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.news__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(52px, 6.7vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.news__sideLabel {
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.6;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text);
}

.newsList--top .newsItem:first-child {
  margin-top: 0;
}

.news__footer {
  display: flex;
  justify-content: center;
  margin-top: clamp(8px, 2vw, 16px);
}

.news__more {
  min-width: min(360px, 100%);
  max-width: 100%;
}

.news__more.button--outline::after {
  content: "→";
  margin-left: 12px;
  font-size: 14px;
  line-height: 1;
}

/* ------------------------------ */
/* responsive (PC -> SP) */
/* ------------------------------ */
@media (max-width: 1024px) and (min-width: 99999px) {
  /* ↑ responsive 一時 OFF */
  :root {
    --container-gutter: 32px;
    --section-gap: 88px;
  }

  .section__title {
    font-size: 64px;
  }

  .section__sideLabel {
    right: -56px;
  }

  .mission__title {
    font-size: clamp(48px, 8vw, 72px);
  }

  .business__title {
    font-size: clamp(48px, 8vw, 72px);
  }

  .caseStudy__title {
    font-size: clamp(48px, 8vw, 72px);
  }

  .company__title {
    font-size: clamp(48px, 8vw, 72px);
  }

  .news__title {
    font-size: clamp(48px, 8vw, 72px);
  }
}

@media (max-width: 900px) and (min-width: 99999px) {
  /* ↑ responsive 一時 OFF */
  .mission__layout {
    grid-template-columns: 1fr;
    row-gap: clamp(32px, 5vw, 48px);
  }

  .mission__media {
    grid-column: 1;
    grid-row: 2;
    justify-self: center;
    margin-left: 0;
  }

  .mission__content {
    grid-column: 1;
    grid-row: 3;
    align-self: start;
  }

  .mission__figure--front {
    right: clamp(-12px, -2vw, -24px);
    bottom: clamp(-10px, -1.5vw, -20px);
  }

  .business__columns {
    grid-template-columns: 1fr;
    gap: clamp(40px, 6vw, 56px);
  }

  .business__col--analog {
    margin-top: 0;
  }

  .caseStudy__grid {
    grid-template-columns: 1fr;
    gap: clamp(32px, 5vw, 40px);
  }

  .company__cards {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-inline: auto;
  }

  .newsList--top .newsItem {
    padding-right: 30px;
  }
}

@media (max-width: 768px) and (min-width: 99999px) {
  /* ↑ responsive 一時 OFF */
  :root {
    --container-gutter: 16px;
    --section-gap: 72px;
  }

  .header__nav {
    display: none;
  }

  .kv__title {
    font-size: 34px;
    letter-spacing: 0.12em;
  }

  .section__head {
    margin-bottom: 32px;
  }

  .section__title {
    font-size: 52px;
  }

  .section__sideLabel {
    display: none;
  }

  .kvBanner {
    right: 0;
    bottom: 0;
  }

  .kvBanner__img {
    max-width: min(220px, 52vw);
  }

  .mission__head {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .mission__sideLabel {
    font-size: 15px;
  }

  .business__head {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .business__sideLabel {
    font-size: 15px;
  }

  .caseStudy__head {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .caseStudy__sideLabel {
    font-size: 15px;
  }

  .company__head {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .company__sideLabel {
    font-size: 15px;
  }

  .companyStory__overlay {
    padding: 20px 20px 48px;
  }

  .company__cards {
    max-width: none;
  }

  .news__head {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .news__sideLabel {
    font-size: 15px;
  }
}