/* =========================================================
   株式会社REKTO建設 — 共通スタイル
   トーン: 重厚7 / モダン3
   ========================================================= */

:root {
  /* 配色 */
  --navy:       #1B2A41;
  --navy-900:   #14202F;
  --navy-800:   #20314A;
  --navy-700:   #2B3D58;
  --charcoal:   #2E3640;
  --ink:        #1C232C;   /* 本文の濃色 */
  --muted:      #5B646F;   /* サブテキスト */
  --muted-2:    #8A929C;
  --line:       #E3E6EB;
  --line-dk:    rgba(255,255,255,0.14);
  --bg:         #FFFFFF;
  --bg-soft:    #F5F6F8;   /* ライトグレー */
  --bg-soft-2:  #EDEFF2;
  --amber:      #B7791F;
  --amber-600:  #9C6718;
  --amber-300:  #D6A24B;
  --amber-tint: #F6EEDF;

  /* タイポ */
  --font-head: "Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Noto Sans JP", system-ui, sans-serif;

  /* レイアウト */
  --maxw: 1240px;
  --gutter: 40px;
  --header-h: 84px;
  --radius: 4px;
  --radius-lg: 6px;

  /* 影（控えめ・フラット寄り） */
  --shadow-sm: 0 1px 2px rgba(20,32,47,0.06);
  --shadow-md: 0 10px 30px rgba(20,32,47,0.08);
  --shadow-lg: 0 24px 60px rgba(20,32,47,0.12);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.3; margin: 0; letter-spacing: 0.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- helpers ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 120px 0; }
.section--tight { padding: 88px 0; }
.section--navy { background: var(--navy); color: #fff; }
.section--soft { background: var(--bg-soft); }
.center { text-align: center; }

/* アイブロウ（英字ラベル＋アンバーの線） */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-body);
  font-size: 12px; font-weight: 700; letter-spacing: 0.28em;
  color: var(--amber); text-transform: uppercase;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: ""; width: 34px; height: 2px; background: var(--amber);
  display: inline-block;
}
.section--navy .eyebrow { color: var(--amber-300); }

/* 見出し */
.h-xl { font-size: clamp(34px, 4.4vw, 54px); letter-spacing: 0.03em; }
.h-lg { font-size: clamp(28px, 3.4vw, 40px); }
.h-md { font-size: clamp(22px, 2.4vw, 28px); }
.lead { font-size: 17px; color: var(--muted); max-width: 62ch; line-height: 2; }
.section--navy .lead { color: rgba(255,255,255,0.8); }

.section-head { margin-bottom: 64px; max-width: 760px; }
.section-head.center { margin-left: auto; margin-right: auto; }

/* ボタン */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 30px; font-weight: 700; font-size: 15px; letter-spacing: 0.04em;
  border: 1.5px solid transparent; border-radius: var(--radius);
  transition: all .25s var(--ease); white-space: nowrap;
}
.btn .arr { transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.btn--amber { background: var(--amber); color: #fff; border-color: var(--amber); }
.btn--amber:hover { background: var(--amber-600); border-color: var(--amber-600); }
.btn--navy { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn--navy:hover { background: var(--navy-800); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--navy); }
.btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn--ghost-light:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.btn--lg { padding: 19px 38px; font-size: 16px; }

/* テキストリンク（矢印） */
.tlink {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 14px; letter-spacing: 0.06em; color: var(--navy);
}
.tlink .arr { transition: transform .25s var(--ease); color: var(--amber); }
.tlink:hover .arr { transform: translateX(5px); }
.section--navy .tlink { color: #fff; }

/* ---------- 画像プレースホルダ ---------- */
.ph {
  position: relative;
  background-color: #E7E9ED;
  background-size: cover;
  background-position: center;
  background-image:
    repeating-linear-gradient(45deg, rgba(27,42,65,0.045) 0 1px, transparent 1px 11px);
  overflow: hidden;
}
/* 実写を入れたプレースホルダはキャプション（ファイル名注記）を隠す */
.ph[style*="background-image"] .ph__tag { display: none; }
.ph--dark {
  background-color: #223149;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 11px);
}
.ph__tag {
  position: absolute; left: 0; bottom: 0;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 11px; letter-spacing: 0.02em;
  color: #4A5360; background: rgba(255,255,255,0.86);
  padding: 7px 12px; margin: 0;
}
.ph--dark .ph__tag { color: #C9D2DE; background: rgba(20,32,47,0.7); }
.ph__tag::before { content: "▣"; color: var(--amber); }

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: #fff; border-bottom: 1px solid var(--line);
  transition: background .3s var(--ease), border-color .3s var(--ease), height .3s var(--ease);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; flex-direction: column; line-height: 1.2; }
.brand__jp { font-family: var(--font-head); font-weight: 900; font-size: 21px; letter-spacing: 0.06em; color: var(--navy); }
.brand__en { font-size: 9.5px; letter-spacing: 0.34em; color: var(--muted-2); font-weight: 700; margin-top: 3px; }
.nav { display: flex; align-items: center; gap: 38px; }
.nav__links { display: flex; align-items: center; gap: 32px; }
.nav__links a {
  position: relative; font-size: 14.5px; font-weight: 500; color: var(--ink); letter-spacing: 0.04em;
  padding: 6px 0;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0; background: var(--amber);
  transition: width .25s var(--ease);
}
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }
.nav__links a.is-active { color: var(--navy); font-weight: 700; }
.header-cta { padding: 12px 24px; font-size: 14px; }

/* ヘッダー: ヒーロー上で透過（ホーム） */
.site-header.is-transparent {
  background: transparent; border-bottom-color: transparent;
}
.site-header.is-transparent .brand__jp,
.site-header.is-transparent .nav__links a { color: #fff; }
.site-header.is-transparent .brand__en { color: rgba(255,255,255,0.6); }
.site-header.is-transparent .nav__links a.is-active { color: #fff; }
.site-header.is-transparent .hamburger span { background: #fff; }

/* ハンバーガー */
.hamburger { display: none; width: 44px; height: 44px; border: none; background: none; position: relative; }
.hamburger span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--navy); transition: all .3s var(--ease); }
.hamburger span:nth-child(1) { top: 15px; }
.hamburger span:nth-child(2) { top: 21px; }
.hamburger span:nth-child(3) { top: 27px; }
body.menu-open .hamburger span:nth-child(1) { top: 21px; transform: rotate(45deg); }
body.menu-open .hamburger span:nth-child(2) { opacity: 0; }
body.menu-open .hamburger span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* モバイルメニュー */
.mobile-menu {
  position: fixed; inset: 0; z-index: 99; background: var(--navy);
  display: flex; flex-direction: column; justify-content: center; padding: 0 var(--gutter);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
}
body.menu-open .mobile-menu { opacity: 1; visibility: visible; transform: none; }
.mobile-menu a { color: #fff; font-family: var(--font-head); font-size: 26px; font-weight: 700; padding: 16px 0; border-bottom: 1px solid var(--line-dk); display: flex; justify-content: space-between; align-items: center; }
.mobile-menu a .en { font-size: 11px; letter-spacing: 0.2em; color: rgba(255,255,255,0.45); font-family: var(--font-body); }
.mobile-menu .btn { margin-top: 32px; }

/* ---------- ページヘッダー（下層ページ） ---------- */
.page-hero {
  position: relative; background: var(--navy); color: #fff;
  background-size: cover; background-position: center;
  padding: calc(var(--header-h) + 84px) 0 84px;
  overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 13px);
  pointer-events: none;
}
.page-hero__overlay {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(rgba(20,32,47,0.82), rgba(20,32,47,0.9));
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero__crumb { font-size: 12px; letter-spacing: 0.1em; color: rgba(255,255,255,0.5); margin-bottom: 20px; }
.page-hero__crumb a:hover { color: #fff; }
.page-hero h1 { font-size: clamp(32px, 4.2vw, 50px); letter-spacing: 0.04em; }
.page-hero__en { display: block; font-size: 13px; letter-spacing: 0.32em; color: var(--amber-300); font-weight: 700; margin-top: 18px; font-family: var(--font-body); }

/* ---------- フッター ---------- */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,0.72); padding: 84px 0 32px; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid var(--line-dk); }
.footer-brand .brand__jp { color: #fff; font-size: 24px; }
.footer-brand .brand__en { color: rgba(255,255,255,0.4); }
.footer-catch { margin-top: 22px; font-family: var(--font-head); font-size: 18px; color: #fff; letter-spacing: 0.04em; }
.footer-desc { margin-top: 16px; color: rgba(255,255,255,0.6); line-height: 1.9; max-width: 38ch; }
.footer-col h4 { font-size: 13px; letter-spacing: 0.16em; color: var(--amber-300); margin-bottom: 22px; font-family: var(--font-body); font-weight: 700; }
.footer-col ul li { margin-bottom: 13px; }
.footer-col a:hover, .footer-col li:hover { color: #fff; }
.footer-contact li { margin-bottom: 14px; line-height: 1.7; }
.footer-contact .lbl { display: block; font-size: 11px; letter-spacing: 0.1em; color: var(--muted-2); }
.footer-contact .val { color: #fff; font-size: 15px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 28px; flex-wrap: wrap; }
.footer-bottom .lic { font-size: 12px; color: rgba(255,255,255,0.45); letter-spacing: 0.02em; }
.footer-bottom .cc { font-size: 12px; color: rgba(255,255,255,0.4); }

/* ---------- フェードイン ---------- */
[data-fade] { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-fade].is-in { opacity: 1; transform: none; }
[data-fade-delay="1"] { transition-delay: .08s; }
[data-fade-delay="2"] { transition-delay: .16s; }
[data-fade-delay="3"] { transition-delay: .24s; }
[data-fade-delay="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  [data-fade] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   ヒーロー（ホーム）
   ========================================================= */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
/* クロスフェードする背景スライド */
.hero__slide {
  position: absolute; inset: 0; opacity: 0;
  background-color: #16243a; background-size: cover; background-position: center;
  transition: opacity 1.6s var(--ease);
}
.hero__slide.is-active { opacity: 1; }
.hero__slide.ph--dark { background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 11px); }
.hero__slide--a { background-color: #16243a; }
.hero__slide--b { background-color: #1d2c40; }
.hero__slide--c { background-color: #202a36; }
.hero__slide--d { background-color: #19222f; }
.hero__grad {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(100deg, rgba(15,24,38,0.92) 0%, rgba(20,32,47,0.78) 42%, rgba(20,32,47,0.4) 100%);
}
.hero__bgtag {
  position: absolute; right: 0; bottom: 0; z-index: 2;
  font-family: ui-monospace, Menlo, monospace; font-size: 11px; color: rgba(255,255,255,0.55);
  background: rgba(20,32,47,0.55); padding: 8px 14px; display: inline-flex; gap: 8px; margin: 0;
}
.hero__bgtag::before { content: "▣"; color: var(--amber-300); }
.hero__inner { position: relative; z-index: 3; width: 100%; padding-top: var(--header-h); }
.hero__catch { font-size: clamp(38px, 6vw, 84px); font-weight: 900; letter-spacing: 0.04em; line-height: 1.22; text-shadow: 0 2px 30px rgba(0,0,0,0.3); }
.hero__catch .amber { color: var(--amber-300); }
.hero__sub { margin-top: 30px; font-size: clamp(15px, 1.5vw, 19px); line-height: 2; color: rgba(255,255,255,0.86); max-width: 46ch; }
.hero__cta { margin-top: 44px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero__scroll { position: absolute; left: 50%; bottom: 30px; transform: translateX(-50%); z-index: 3; font-size: 10px; letter-spacing: 0.3em; color: rgba(255,255,255,0.6); writing-mode: vertical-rl; display: flex; align-items: center; gap: 12px; }
.hero__scroll::after { content: ""; width: 1px; height: 46px; background: linear-gradient(var(--amber-300), transparent); animation: scrolldot 2s var(--ease) infinite; }
@keyframes scrolldot { 0% { opacity: 0; transform: scaleY(0.2); transform-origin: top; } 50% { opacity: 1; } 100% { opacity: 0; transform: scaleY(1); transform-origin: bottom; } }

/* 信頼指標 */
.trustbar { border-top: 1px solid var(--line-dk); margin-top: 64px; padding-top: 36px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.trust__num { font-family: var(--font-head); font-size: clamp(28px, 3vw, 40px); font-weight: 900; color: #fff; line-height: 1; letter-spacing: 0.02em; }
.trust__num .u { font-size: 0.5em; margin-left: 4px; color: var(--amber-300); font-weight: 700; }
.trust__lbl { margin-top: 10px; font-size: 13px; color: rgba(255,255,255,0.7); letter-spacing: 0.04em; }

/* =========================================================
   事業内容カード
   ========================================================= */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.svc-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 38px 30px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease); display: flex; flex-direction: column; }
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.svc-card__no { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--amber); letter-spacing: 0.1em; }
.svc-card__icon { width: 52px; height: 52px; margin: 18px 0 24px; color: var(--navy); }
.svc-card__icon svg { width: 100%; height: 100%; }
.svc-card h3 { font-size: 20px; letter-spacing: 0.04em; }
.svc-card__en { font-size: 11px; letter-spacing: 0.2em; color: var(--muted-2); font-weight: 700; margin-top: 6px; }
.svc-card p { margin-top: 16px; font-size: 14.5px; color: var(--muted); line-height: 1.95; }
.svc-card__list { margin-top: 20px; padding-top: 20px; border-top: 1px dashed var(--line); }
.svc-card__list li { font-size: 13.5px; color: var(--ink); padding-left: 18px; position: relative; margin-bottom: 9px; }
.svc-card__list li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; background: var(--amber); }

/* =========================================================
   施工実績
   ========================================================= */
.filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 48px; }
.filter button {
  padding: 11px 24px; border: 1px solid var(--line); background: #fff; color: var(--muted);
  font-size: 13.5px; font-weight: 700; letter-spacing: 0.06em; border-radius: 999px; transition: all .2s var(--ease);
}
.filter button:hover { border-color: var(--navy); color: var(--navy); }
.filter button.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }

.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.work-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.work-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.work-card__img { aspect-ratio: 4 / 3; position: relative; }
.work-card__cat { position: absolute; top: 14px; left: 14px; z-index: 2; background: var(--amber); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; padding: 5px 13px; border-radius: 2px; }
.work-card__body { padding: 24px 24px 28px; }
.work-card__body h3 { font-size: 18px; letter-spacing: 0.03em; }
.work-meta { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.work-meta div { display: flex; gap: 12px; font-size: 13px; }
.work-meta .k { color: var(--muted-2); min-width: 64px; letter-spacing: 0.04em; }
.work-meta .v { color: var(--ink); }
.work-card.is-hidden { display: none; }

/* =========================================================
   選ばれる理由
   ========================================================= */
.reason-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-dk); border: 1px solid var(--line-dk); }
.reason { background: var(--navy); padding: 48px 44px; display: flex; gap: 28px; }
.reason__no { font-family: var(--font-head); font-size: 46px; font-weight: 900; color: var(--amber-300); line-height: 1; letter-spacing: 0.02em; flex-shrink: 0; }
.reason h3 { font-size: 21px; color: #fff; letter-spacing: 0.04em; }
.reason p { margin-top: 14px; font-size: 14.5px; color: rgba(255,255,255,0.74); line-height: 1.95; }

/* =========================================================
   会社概要テーブル
   ========================================================= */
.profile-table { width: 100%; border-collapse: collapse; }
.profile-table th, .profile-table td { text-align: left; padding: 22px 24px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 15px; }
.profile-table th { width: 220px; font-family: var(--font-head); font-weight: 700; color: var(--navy); letter-spacing: 0.04em; background: var(--bg-soft); }
.profile-table td { color: var(--ink); line-height: 1.9; }

/* 代表挨拶 */
.message-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: start; }
.message__img { aspect-ratio: 3 / 4; }
.message__body h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.5; letter-spacing: 0.04em; }
.message__body p { margin-top: 22px; color: var(--muted); line-height: 2.05; font-size: 15.5px; }
.message__sign { margin-top: 34px; display: flex; align-items: baseline; gap: 16px; }
.message__sign .role { font-size: 13px; color: var(--muted); letter-spacing: 0.08em; }
.message__sign .name { font-family: var(--font-head); font-size: 24px; font-weight: 700; color: var(--navy); letter-spacing: 0.06em; }

/* =========================================================
   採用
   ========================================================= */
.job-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.job-card { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.job-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.job-card__img { aspect-ratio: 16 / 10; }
.job-card__body { padding: 28px 28px 32px; }
.job-card__tag { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; color: var(--amber); }
.job-card__body h3 { font-size: 21px; margin-top: 10px; letter-spacing: 0.04em; }
.job-card dl { margin-top: 20px; display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; font-size: 13.5px; }
.job-card dt { color: var(--muted-2); }
.job-card dd { margin: 0; color: var(--ink); }
.env-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.env-card { padding: 32px 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.env-card__ic { width: 40px; height: 40px; color: var(--amber); margin-bottom: 18px; }
.env-card h4 { font-size: 16px; color: var(--navy); letter-spacing: 0.04em; }
.env-card p { margin-top: 10px; font-size: 13.5px; color: var(--muted); line-height: 1.85; }

/* =========================================================
   お問い合わせ
   ========================================================= */
.contact-grid { display: grid; grid-template-columns: 1.3fr 0.9fr; gap: 56px; align-items: start; }
.form-row { margin-bottom: 26px; }
.form-row label { display: block; font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 10px; letter-spacing: 0.04em; }
.form-row label .req { color: var(--amber); font-size: 11px; margin-left: 8px; font-weight: 700; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 15px 16px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fff; transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(27,42,65,0.08); }
.form-row textarea { resize: vertical; min-height: 140px; line-height: 1.8; }
.form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.form-note { font-size: 12.5px; color: var(--muted-2); margin: 4px 0 26px; line-height: 1.8; }
.form-submit { display: flex; align-items: center; gap: 20px; }
.form-thanks { display: none; padding: 28px 30px; background: var(--amber-tint); border: 1px solid var(--amber-300); border-radius: var(--radius); color: #6B4E16; line-height: 1.9; }
.form-thanks.show { display: block; }

.contact-aside { background: var(--navy); color: #fff; padding: 44px 40px; border-radius: var(--radius-lg); }
.contact-aside h3 { font-size: 19px; letter-spacing: 0.04em; }
.contact-aside .ci { margin-top: 26px; padding-top: 26px; border-top: 1px solid var(--line-dk); }
.contact-aside .ci:first-of-type { border-top: none; padding-top: 0; }
.contact-aside .ci .lbl { font-size: 11px; letter-spacing: 0.14em; color: var(--amber-300); font-weight: 700; }
.contact-aside .ci .big { font-family: var(--font-head); font-size: 30px; font-weight: 900; color: #fff; margin-top: 8px; letter-spacing: 0.04em; }
.contact-aside .ci p { margin-top: 8px; font-size: 14px; color: rgba(255,255,255,0.78); line-height: 1.85; }
.contact-map { margin-top: 28px; aspect-ratio: 16 / 10; border-radius: var(--radius); }

/* =========================================================
   汎用CTAバンド
   ========================================================= */
.cta-band { background: var(--navy); color: #fff; padding: 84px 0; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 14px); }
.cta-band .wrap { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: 0.04em; }
.cta-band p { margin-top: 14px; color: rgba(255,255,255,0.75); }
.cta-band__actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* 2カラム交互（事業内容詳細） */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split--rev .split__media { order: 2; }
.split__media { aspect-ratio: 4 / 3; border-radius: var(--radius-lg); }
.split__body .eyebrow { margin-bottom: 18px; }
.split__body h2 { font-size: clamp(24px, 2.8vw, 34px); letter-spacing: 0.03em; }
.split__body p { margin-top: 20px; color: var(--muted); line-height: 2.05; font-size: 15.5px; }
.split__list { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.split__list li { font-size: 14px; padding-left: 20px; position: relative; }
.split__list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; background: var(--amber); }

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width: 1024px) {
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .env-grid { grid-template-columns: repeat(2, 1fr); }
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .job-grid { grid-template-columns: 1fr; max-width: 520px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .message-grid { grid-template-columns: 1fr; gap: 40px; }
  .message__img { max-width: 340px; }
}
@media (max-width: 860px) {
  :root { --gutter: 22px; --header-h: 70px; }
  .section { padding: 80px 0; }
  .nav__links, .header-cta { display: none; }
  .hamburger { display: block; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split--rev .split__media { order: 0; }
  .reason-grid { grid-template-columns: 1fr; }
  .trustbar { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
  .profile-table th { width: 130px; padding: 18px 16px; }
  .profile-table td { padding: 18px 16px; }
}
@media (max-width: 560px) {
  .svc-grid, .work-grid, .env-grid { grid-template-columns: 1fr; }
  .form-2col, .split__list { grid-template-columns: 1fr; }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .hero__cta .btn { flex: 1; }
}