/* =========================================================
   事業内容
   ========================================================= */

/* ページ内目次（スクロールに合わせて現在地が光る） */
.svc-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94); border-bottom: 1px solid var(--c-line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.svc-nav ul { display: flex; gap: clamp(18px, 3vw, 40px); overflow-x: auto; scrollbar-width: none; }
.svc-nav ul::-webkit-scrollbar { display: none; }
.svc-nav a {
  position: relative; display: block; padding: 18px 0; white-space: nowrap;
  font-size: 14px; letter-spacing: .1em; color: var(--c-mute); transition: color .3s;
}
.svc-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--c-champagne); transform: scaleX(0); transition: transform .4s var(--ease);
}
.svc-nav a:hover, .svc-nav a.is-current { color: var(--c-ink); }
.svc-nav a.is-current::after { transform: scaleX(1); }
@media (max-width: 1023px) { .svc-nav { top: var(--header-h); } }

/* ---------- 各サービス ---------- */
.svc-block {
  display: grid; grid-template-columns: 5fr 6fr; gap: clamp(36px, 7vw, 100px); align-items: center;
  scroll-margin-top: 64px; /* 目次の高さぶん（ヘッダーぶんは html の scroll-padding） */
}
.svc-block + .svc-block { margin-top: clamp(88px, 12vw, 150px); }
.svc-block--rev .svc-block__photo { order: 2; }
.svc-block__photo { aspect-ratio: 4 / 5; }
.svc-block__name {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--ff-serif); font-size: 15px; letter-spacing: .24em; color: var(--c-brass);
}
.svc-block__name::after { content: ""; width: 48px; height: 1px; background: var(--c-champagne); }
.svc-block__title {
  margin: 18px 0 24px;
  font-family: var(--ff-serif); font-weight: 500;
  font-size: clamp(24px, 2.8vw, 34px); line-height: 1.65; letter-spacing: .08em;
}
.svc-block__text { color: var(--c-mute); max-width: 32em; }
.svc-block__sub { margin: 36px 0 14px; font-size: 13px; letter-spacing: .16em; color: var(--c-brass); font-weight: 500; }
.svc-block__list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--c-line); }
.svc-block__list li {
  position: relative; padding: 14px 8px 14px 24px; font-size: 15px;
  border-bottom: 1px solid var(--c-line);
}
.svc-block__list li:nth-child(odd) { border-right: 1px solid var(--c-line); }
.svc-block__list li:nth-child(even) { padding-left: 32px; }
.svc-block__list li::before {
  content: ""; position: absolute; left: 4px; top: 24px; width: 8px; height: 8px;
  border-top: 1.5px solid var(--c-champagne); border-right: 1.5px solid var(--c-champagne); border-top-right-radius: 4px;
}
.svc-block__list li:nth-child(even)::before { left: 12px; }
@media (max-width: 767px) {
  .svc-block { grid-template-columns: 1fr; }
  .svc-block--rev .svc-block__photo { order: 0; }
  .svc-block__photo { aspect-ratio: 4 / 3; }
  .svc-block__list { grid-template-columns: 1fr; }
  .svc-block__list li:nth-child(odd) { border-right: 0; }
  .svc-block__list li:nth-child(even) { padding-left: 24px; }
  .svc-block__list li:nth-child(even)::before { left: 4px; }
}

/* ---------- その他 ---------- */
.other { scroll-margin-top: 64px; }
.other__grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.other__list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); }
.other__list li {
  display: grid; place-items: center; min-height: 104px; padding: 16px; text-align: center;
  background: var(--c-white); font-family: var(--ff-serif); font-size: 17px; letter-spacing: .08em; line-height: 1.5;
}
@media (max-width: 1023px) { .other__grid { grid-template-columns: 1fr; } }
@media (max-width: 599px) { .other__list { grid-template-columns: 1fr 1fr; } .other__list li { min-height: 84px; font-size: 15px; } }

/* ---------- 工事の流れ（配管に見立てた縦の線でつなぐ） ---------- */
.flow { scroll-margin-top: 64px; }
.flow__list { position: relative; max-width: 820px; margin-inline: auto; }
.flow__list::before {
  content: ""; position: absolute; left: 31px; top: 20px; bottom: 20px; width: 6px;
  background: linear-gradient(90deg, #8f7048, #e6d5b8 45%, #8f7048);
  border-radius: 3px; opacity: .55;
}
.flow__item { position: relative; display: grid; grid-template-columns: 68px 1fr; gap: 28px; padding-block: 22px; }
.flow__num {
  position: relative; z-index: 1; display: grid; place-items: center;
  width: 68px; height: 68px; border-radius: 50%;
  background: var(--c-lacquer); border: 1px solid var(--c-champagne);
  font-family: var(--ff-serif); font-size: 20px; letter-spacing: .06em; color: var(--c-champagne);
}
.flow__title { font-family: var(--ff-serif); font-weight: 500; font-size: 21px; letter-spacing: .08em; line-height: 1.5; margin: 16px 0 8px; }
.flow__item p { color: var(--c-mute-dark); font-size: 15px; }
@media (max-width: 599px) {
  .flow__list::before { left: 23px; }
  .flow__item { grid-template-columns: 52px 1fr; gap: 18px; }
  .flow__num { width: 52px; height: 52px; font-size: 16px; }
  .flow__title { margin-top: 10px; font-size: 18px; }
}

/* ---------- アフターフォロー ---------- */
.aftercare { scroll-margin-top: 64px; }
.aftercare__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 7vw, 96px); align-items: center; }
.aftercare__photo { aspect-ratio: 4 / 3; }
.aftercare__lead { margin: 24px 0 32px; color: var(--c-mute); }
.aftercare__list { display: grid; gap: 22px; }
.aftercare__list li { padding-top: 18px; border-top: 1px solid var(--c-champagne); }
.aftercare__list h3 { font-family: var(--ff-serif); font-weight: 500; font-size: 18px; letter-spacing: .08em; margin-bottom: 4px; }
.aftercare__list p { font-size: 14px; color: var(--c-mute); }
@media (max-width: 767px) { .aftercare__grid { grid-template-columns: 1fr; } }