/* ==========================================================================
   TOPページ KV（ファーストビュー）
   出典: サイトデザイン参照画像（KV）
   ========================================================================== */

.kv {
  --kv-scale: 1;
  --kv-height: 940px;
  --kv-color-light: #e8e4dc;
  --kv-color-dark: var(--color-bg-header, #141414);

  position: relative;
  isolation: isolate;
  overflow: hidden;
  height: var(--kv-height);
  background: var(--kv-color-light);
}

/*
 * PC版はデザイン（1920 × 940）を一枚のキャンバスとして同率縮小する。
 * 子要素ごとに vw / vh を使わないため、画面可変時にも重なり方が変わらない。
 */
.kv__stage {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 1;
  width: 1920px;
  height: 940px;
  margin-left: -960px;
  transform: scale(var(--kv-scale));
  transform-origin: top center;
}

/* 建物と同じ基準キャンバス内の y=550px から黒背景を開始する。 */
.kv__stage::before {
  content: '';
  position: absolute;
  top: 550px;
  bottom: 0;
  left: -100vw;
  right: -100vw;
  z-index: 0;
  background: var(--kv-color-dark);
}

/* 上下の背景（疑似要素、--kv-split で比率調整可能） */
.kv::before,
.kv::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  z-index: 0;
  display: none;
}
.kv::before {
  top: 0;
  height: 42%;
  background: var(--kv-color-light);
}
.kv::after {
  top: 42%;
  bottom: 0;
  background: var(--kv-color-dark);
}

/* ---- 背景マーキー（Swiper無限ループ） ---- */
.kv__marquee {
  position: absolute;
  left: 50%;
  /* 親キャンバスの縮小後も、表示領域は常にブラウザ幅いっぱいにする。 */
  width: calc(100vw / var(--kv-scale, 1));
  transform: translateX(-50%);
  top: 70px;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}
.kv-marquee-swiper .swiper-wrapper {
  transition-timing-function: linear !important; /* 一定速度で流れ続けるマーキー用 */
}
.kv-marquee-swiper .swiper-slide {
  width: auto;
}
.kv-marquee__slide {
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 260px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
  color: #1a1a1a;
  white-space: nowrap;
  padding-right: 90px;
}

/* ---- 中央ビジュアル（吹き出しバッジ込みの一枚絵） ---- */
.kv__visual {
  position: absolute;
  top: 210px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 1452px;
  pointer-events: none;
}
.kv__visual-img {
  display: block;
  width: 100%;
  height: auto;
}
.kv__mobile-features,
.kv__mobile-phone,
.kv__title-break { display: none; }

/* PC画像内の旧固定バッジを同じ位置・色で覆い、公開済み施工実績数を表示する。 */
.kv__achievement {
  position: absolute;
  top: 211px;
  left: calc(50% + 379px);
  z-index: 4;
  width: 141px;
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #f57a24;
  color: #fff;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  text-align: center;
  line-height: 1;
}
.kv__achievement span { font-size: 14px; font-weight: 700; }
.kv__achievement strong { margin-top: 7px; font-size: 48px; font-weight: 800; }
.kv__achievement strong small { margin-left: 4px; font-size: 15px; }
.kv__achievement b { margin-top: 4px; font-size: 24px; font-weight: 800; }
.kv__achievement--long strong { font-size: 38px; letter-spacing: -0.04em; }

/* ---- 下部コンテンツ（実績訴求・H1・CTA） ---- */
.kv__content {
  position: absolute;
  left: 50%;
  bottom: 79px;
  transform: translateX(-50%);
  z-index: 3;
  width: 1040px;
  text-align: center;
}
.kv__eyebrow {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.04em;
  color: #fff;
}
.kv__eyebrow strong {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin: 0 6px;
}
.kv__title {
  margin: 0 0 36px;
  font-size: 50px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: #fff;
  white-space: nowrap;
}

.kv__title-line { font: inherit; }
.kv .btn-cta {
  position: relative;
  width: min(100%, 512px);
  min-height: 60px;
  justify-content: center;
  padding: 14px 64px;
  border: 0;
  font-size: 20px;
  font-weight: 400;
}
.kv .btn-cta__arrow {
  position: absolute;
  right: 32px;
}

/* ==========================================================================
   レスポンシブ
   ========================================================================== */
@media (max-width: 768px) {
  .kv {
    height: 712px;
    min-height: 712px;
    max-height: 712px;
    background: var(--kv-color-light);
  }
  .kv__stage {
    display: contents;
  }
  .kv__stage::before { content: none; }
  .kv::before,
  .kv::after { display: none; }
  .kv__marquee {
    top: 16px;
    left: 0;
    width: 100%;
    transform: none;
  }
  .kv-marquee__slide { font-size: clamp(62px, 18vw, 72px); letter-spacing: -.04em; padding-right: 24px; }
  .kv__mobile-features {
    position: absolute;
    z-index: 4;
    top: 98px;
    left: 12px;
    right: 12px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
  }
  .kv__mobile-features span {
    min-height: 26px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1a1a1a;
    color: #fff;
    font-size: 11px;
    line-height: 1;
  }
  .kv__visual {
    top: 143px;
    left: 0;
    width: 100%;
    transform: none;
    overflow: hidden;
  }
  .kv__visual picture {
    display: block;
    width: 180%;
    max-width: none;
    transform: translateX(calc(-22.222% + 80px));
  }
  .kv__visual-img { width: 100%; max-width: none; }
  /* SP専用画像は建物のみを書き出しているため、PC画像用のクロップを解除する。 */
  .kv--has-mobile-image .kv__visual picture {
    width: 120%;
    transform: none;
  }
  /* SP専用画像がまだ無い環境では、横長のPC画像を拡大して建物を見せる */
  .kv--mobile-fallback .kv__visual { width: 100%; }
  .kv__achievement {
    top: 264px;
    right: 18px;
    left: auto;
    z-index: 6;
    width: 112px;
    aspect-ratio: 1;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #f57a24;
    color: #fff;
    font-family: "Inter", "Noto Sans JP", sans-serif;
    text-align: center;
    line-height: 1;
  }
  .kv__achievement span { font-size: 11px; font-weight: 700; }
  .kv__achievement strong { margin-top: 5px; font-size: 38px; font-weight: 800; }
  .kv__achievement strong small { margin-left: 3px; font-size: 12px; }
  .kv__achievement b { margin-top: 3px; font-size: 19px; font-weight: 800; }
  .kv__achievement--long strong { font-size: 30px; }
  .kv__content {
    top: 298px;
    bottom: auto;
    z-index: 5;
    width: 100%;
    min-height: 414px;
    padding: 40px 20px 20px;
    clip-path: polygon(0 0, 100% 16px, 100% 100%, 0 100%);
    background: var(--kv-color-dark);
    text-align: left;
  }
  .kv__eyebrow { margin: 0 0 11px 50px; font-size: 14px; }
  .kv__eyebrow strong { margin-inline: 3px; font-size: 26px; }
  .kv__title {
    margin: 0 0 10px 50px;
    font-size: inherit;
    line-height: 1;
    white-space: normal;
  }
  .kv__title-break { display: none; }
  .kv__title-line { display: block; }
  .kv__title-line--sub {
    font-size: clamp(28px, 7vw, 38px);
    line-height: 1.2;
  }
  .kv__title-line--main {
    margin-top: 6px;
    font-size: clamp(42px, 11vw, 60px);
    line-height: 1.16;
  }
  .kv .btn-cta { width: 100%; min-height: 70px; padding-inline: 52px; font-size: 18px; }
  .kv .btn-cta__arrow { right: 24px; }
  .kv__mobile-phone {
    width: min(270px, calc(100% - 40px));
    min-height: 82px;
    margin: 24px auto 0;
    padding: 12px 18px;
    border: 1px solid rgba(255,255,255,.48);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    color: #fff;
  }
  .kv__mobile-phone small { font-size: 11px; line-height: 1.3; }
  .kv__mobile-phone strong { font-family: "Inter", sans-serif; font-size: 25px; line-height: 1.1; letter-spacing: .01em; }
  .kv__mobile-phone span { margin-top: 3px; font-size: 8px; line-height: 1.3; white-space: nowrap; }

  /* TOPの最下部2ボタンは、FVとは独立したフローティングCTAとして表示する。 */
  .home .mobile-sticky-cta {
    left: 30px;
    right: 30px;
    bottom: 18px;
    gap: 8px;
    padding-bottom: env(safe-area-inset-bottom, 0);
    background: transparent;
    box-shadow: none;
  }
  .home .mobile-sticky-cta__btn {
    min-height: 60px;
    padding: 10px 8px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
  }
  .home .mobile-sticky-cta__badge { display: none; }
  .home .mobile-sticky-cta__btn--email .mobile-sticky-cta__label { font-size: 0; }
  .home .mobile-sticky-cta__btn--email .mobile-sticky-cta__label::after {
    content: 'お問い合わせ';
    font-size: 16px;
  }
  .home .mobile-sticky-cta__btn--catalog { background: #f57a24; }
  .home .mobile-sticky-cta__btn--email { background: #33765f; }
}