@charset "UTF-8";

/* =========================================================
   稲垣建装  TOPページ専用スタイル
   ========================================================= */

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__overlay {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(100deg, rgba(10, 60, 60, 0.86) 0%, rgba(10, 60, 60, 0.55) 48%, rgba(10, 60, 60, 0.25) 100%),
    linear-gradient(rgba(10, 50, 50, 0.15), rgba(8, 40, 40, 0.55));
}
.hero__inner { position: relative; padding-top: var(--header-h); }
.hero__tag {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  padding: 7px 18px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  margin-bottom: 26px;
  backdrop-filter: blur(2px);
}
.hero__title {
  color: #fff;
  font-size: clamp(2.3rem, 6.4vw, 4.2rem);
  line-height: 1.32;
  letter-spacing: 0.05em;
  text-shadow: 0 6px 28px rgba(0, 0, 0, 0.3);
}
.hero__sub {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2.6vw, 1.5rem);
  margin-top: 18px;
  color: #dcefe9;
  letter-spacing: 0.08em;
}
.hero__lead {
  margin-top: 22px;
  font-size: clamp(0.92rem, 1.4vw, 1.02rem);
  line-height: 2.1;
  color: #eaf4f2;
  max-width: 620px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.hero__scroll {
  position: absolute;
  left: 50%; bottom: 24px;
  transform: translateX(-50%);
  writing-mode: vertical-rl;
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.8);
}
.hero__scroll span { position: relative; padding-bottom: 46px; }
.hero__scroll span::after {
  content: "";
  position: absolute; left: 50%; bottom: 0;
  width: 1px; height: 38px;
  background: rgba(255, 255, 255, 0.7);
  animation: scrollLine 2s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); opacity: 0; }
  35% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(0); opacity: 0; transform-origin: bottom; }
}

/* ---------- 導入メッセージ ---------- */
.intro__inner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}
.intro__en {
  font-family: var(--serif);
  letter-spacing: 0.3em;
  font-size: 0.82rem;
  color: var(--teal);
  margin-bottom: 16px;
}
.intro__title {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.6;
  letter-spacing: 0.04em;
}
.intro__body p { margin-bottom: 18px; }
.intro__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.06em;
}
.intro__more svg { width: 22px; height: 22px; transition: transform 0.3s var(--ease); }
.intro__more:hover svg { transform: translateX(6px); }

/* ---------- 3つの安心 ---------- */
.reason__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.reason-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px 30px 36px;
  box-shadow: var(--shadow);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.reason-card:hover { transform: translateY(-6px); box-shadow: 0 26px 50px -28px rgba(10, 70, 70, 0.5); }
.reason-card__no {
  position: absolute;
  top: 22px; right: 26px;
  font-family: var(--serif);
  font-size: 2.4rem;
  color: var(--teal-soft);
  line-height: 1;
}
.reason-card__icon {
  width: 64px; height: 64px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--teal-soft);
  color: var(--teal);
  margin-bottom: 22px;
}
.reason-card__icon svg { width: 36px; height: 36px; }
.reason-card__title {
  font-size: 1.28rem;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.reason-card p { font-size: 0.94rem; color: var(--text); }

/* ---------- 事業内容 ---------- */
.services-pre__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.svc-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.svc-card:hover { transform: translateY(-6px); }
.svc-card__media { aspect-ratio: 4 / 3; overflow: hidden; }
.svc-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.svc-card:hover .svc-card__media img { transform: scale(1.05); }
.svc-card__body { padding: 28px 26px 32px; position: relative; }
.svc-card__num {
  position: absolute;
  top: -22px; left: 24px;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--teal);
  color: #fff;
  font-family: var(--serif);
  border-radius: 50%;
  font-size: 1.05rem;
  box-shadow: var(--shadow-sm);
}
.svc-card__title { font-size: 1.22rem; margin: 10px 0 12px; line-height: 1.5; }
.svc-card p { font-size: 0.92rem; }

/* ---------- 施工実績 ---------- */
.works-pre__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.work-thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.work-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.work-thumb:hover img { transform: scale(1.07); }
.work-thumb__label {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 16px 14px;
  font-size: 0.84rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  background: linear-gradient(transparent, rgba(8, 40, 40, 0.82));
}

/* ---------- 施工の流れ ---------- */
.flow-pre__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: flow;
}
.flow-step {
  position: relative;
  text-align: center;
  padding: 14px 12px;
}
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 58px; right: -12px;
  width: 24px; height: 2px;
  background: var(--line);
}
.flow-step__no {
  display: block;
  font-family: var(--serif);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--teal);
  margin-bottom: 14px;
}
.flow-step__icon {
  width: 84px; height: 84px;
  margin: 0 auto 18px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  background: var(--card);
  color: var(--teal);
}
.flow-step__icon svg { width: 42px; height: 42px; }
.flow-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.flow-step p { font-size: 0.86rem; color: var(--text-muted); }

/* ---------- 代表挨拶 ---------- */
.message-pre__inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(36px, 6vw, 70px);
  align-items: center;
}
.message-pre__media { position: relative; }
.message-pre__media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.message-pre__badge {
  position: absolute;
  right: -16px; bottom: -16px;
  background: var(--teal);
  color: #fff;
  padding: 16px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow-sm);
}
.message-pre__badge strong { font-family: var(--serif); font-size: 1.6rem; margin: 0 2px; }
.message-pre__title {
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  line-height: 1.55;
  margin: 14px 0 22px;
}
.message-pre__body p { margin-bottom: 16px; }
.message-pre__sign {
  font-family: var(--serif);
  color: var(--ink);
  letter-spacing: 0.08em;
  margin: 22px 0 24px !important;
}

/* ---------- FAQ ---------- */
.faq__inner { max-width: 860px; margin-inline: auto; }
.faq__list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 60px 22px 26px;
  position: relative;
  font-weight: 700;
  color: var(--ink);
  font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q";
  font-family: var(--serif);
  color: var(--teal);
  margin-right: 14px;
  font-size: 1.05rem;
}
.faq-item__icon {
  position: absolute;
  top: 50%; right: 24px;
  width: 16px; height: 16px;
  transform: translateY(-50%);
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 14px; height: 2px;
  background: var(--teal);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease);
}
.faq-item__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item[open] .faq-item__icon::after { transform: translate(-50%, -50%) rotate(0); }
.faq-item__body {
  padding: 0 26px 24px 56px;
  color: var(--text);
  font-size: 0.94rem;
}

/* ---------- 冬季バナー ---------- */
.winter {
  background:
    linear-gradient(120deg, rgba(3, 60, 60, 0.92), rgba(3, 80, 80, 0.78)),
    var(--teal-deep);
  color: #fff;
}
.winter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(48px, 7vw, 76px) 0;
}
.winter__copy { max-width: 640px; }
.winter__tag {
  display: inline-block;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  padding: 5px 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  margin-bottom: 16px;
}
.winter__title { color: #fff; font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 14px; letter-spacing: 0.04em; }
.winter__copy p { color: #d6ece9; font-size: 0.96rem; }

/* ---------- コンタクトCTA 追記 ---------- */
.contact-cta__tel {
  margin-top: 26px;
  font-size: 0.86rem;
  color: #9fc3c0;
}
.contact-cta__tel a {
  color: #fff;
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}
.contact-cta__tel a:hover { color: #7fd0d0; border-bottom-color: #7fd0d0; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 980px) {
  .intro__inner { grid-template-columns: 1fr; }
  .reason__grid { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .services-pre__grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .works-pre__grid { grid-template-columns: repeat(2, 1fr); }
  .flow-pre__steps { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .flow-step:nth-child(2)::after { display: none; }
  .message-pre__inner { grid-template-columns: 1fr; }
  .message-pre__media { max-width: 420px; margin-inline: auto; }
  .message-pre__badge { right: 12px; }
}

@media (max-width: 560px) {
  .hero { min-height: 92svh; }
  .hero__actions .btn { width: 100%; }
  .works-pre__grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .flow-step::after { display: none !important; }
  .winter__action { width: 100%; }
  .winter__action .btn { width: 100%; }
}