@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@500;700&family=Noto+Sans+JP:wght@400;500;700;800&display=swap');

/* ===== トークン ===== */
:root{
  --ink:#20303c;
  --ink-soft:#54677a;
  --brand:#2c5a82;
  --brand-d:#152e42;
  --brand-l:#e9f0f5;
  --accent:#bd7c42;
  --accent-d:#93601f;
  --paper:#faf7f0;
  --card:#ffffff;
  --line:#e2d9c8;
  --line-soft:#ece5d6;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 10px 26px rgba(21,46,66,.09);
  --font-head:"Shippori Mincho","Noto Serif JP",serif;
  --font-body:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--font-head);line-height:1.5;margin:0 0 .5em;color:var(--brand-d)}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.inner{max-width:1140px;margin:0 auto;padding:0 24px}

/* ===== デモ帯 ===== */
.demo-bar{background:#3a2a17;color:#fff;font-size:.86rem;line-height:1.6}
.demo-bar .inner{display:flex;flex-wrap:wrap;gap:4px 20px;padding:9px 24px;max-width:1140px;margin:0 auto}
.demo-bar a{color:#ffd9a8;text-decoration:underline}

/* ===== ヘッダー ===== */
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{
  max-width:1140px;margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;gap:16px;flex-wrap:nowrap;
}
.brand{display:flex;flex-direction:column;gap:2px;text-decoration:none;flex:0 1 auto;min-width:0}
.brand .name{font-family:var(--font-head);font-weight:700;font-size:1.18rem;color:var(--brand-d);white-space:nowrap}
.brand small{font-size:.76rem;color:var(--ink-soft);white-space:nowrap}
.gnav ul{display:flex;gap:16px}
.gnav a{text-decoration:none;font-weight:500;font-size:.91rem;padding:6px 2px;border-bottom:2px solid transparent;white-space:nowrap}
.gnav a:hover,.gnav a[aria-current="page"]{border-color:var(--accent);color:var(--brand-d)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:none}
.tel-link{text-decoration:none;text-align:right;line-height:1.35;flex:none}
.tel-link b{display:block;font-size:1.12rem;color:var(--brand-d);font-family:var(--font-head);white-space:nowrap}
.tel-link small{display:block;font-size:.76rem;color:var(--ink-soft);white-space:nowrap}
.btn-head{
  background:var(--accent);color:#fff;text-decoration:none;font-weight:700;
  padding:11px 20px;border-radius:999px;font-size:.92rem;white-space:nowrap;
}
.btn-head:hover{background:var(--accent-d)}
.nav-toggle{display:none;width:44px;height:44px;flex:none;border:1px solid var(--line);border-radius:8px;background:#fff;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--brand-d);transition:transform .2s
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}

@media (max-width:1050px){
  .gnav{
    position:fixed;inset:65px 0 auto 0;height:calc(100dvh - 65px);
    background:#fff;overflow-y:auto;padding:26px 24px 40px;
    opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
  }
  .gnav.is-open{opacity:1;visibility:visible}
  .gnav ul{min-height:100%;flex-direction:column;justify-content:center;gap:6px}
  .gnav a{display:block;padding:14px 6px;font-size:1.08rem;border-bottom:1px solid var(--line-soft)}
  .header-actions{margin-left:auto;gap:10px}
  .tel-link small{display:none}
  .btn-head{display:none}
  .nav-toggle{display:block}
  body.nav-open{overflow:hidden}
}
@media (max-width:520px){
  .brand{flex:0 1 auto;min-width:0}
  .brand .name{white-space:normal;font-size:1.08rem}
  .brand small{white-space:normal}
  .tel-link b{font-size:1.02rem}
}

/* ===== ヒーロー ===== */
.hero{position:relative;overflow:hidden;background:var(--brand-d)}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,28,42,.55),rgba(14,28,42,.9))}
.hero-copy{
  position:relative;z-index:1;max-width:900px;margin:0 auto;
  padding:60px 24px 68px;min-height:min(54vh,440px);
  display:flex;flex-direction:column;justify-content:center;color:#fff;
}
.hero .eyebrow{letter-spacing:.14em;font-size:.78rem;color:#f2d3ab;font-weight:700;margin-bottom:14px}
.hero h1{color:#fff;font-size:clamp(1.7rem,4.4vw,2.5rem);margin-bottom:.55em}
.hero p{color:#e6ecf1;max-width:52ch;font-size:1.02rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px}
.btn{display:inline-block;text-decoration:none;font-weight:700;padding:14px 26px;border-radius:999px;font-size:1rem}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}

/* ===== 信頼バー ===== */
.stats{background:var(--brand);color:#fff}
.stats .inner{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding:30px 24px}
.stat dt{font-size:.8rem;color:#cfe0ee;margin-bottom:4px}
.stat dd{margin:0;font-family:var(--font-head);font-size:1.34rem;font-weight:700}
.stat dd small{display:block;font-family:var(--font-body);font-size:.76rem;font-weight:500;color:#dbe8f1;margin-top:3px;line-height:1.5}
@media (max-width:760px){.stats .inner{grid-template-columns:repeat(2,1fr)}}

/* ===== セクション共通 ===== */
.section{padding:74px 0}
.section.soft{background:var(--brand-l)}
.section.warm{background:#fbf1e4}
.section.dark{background:var(--brand-d);color:#fff}
.section.dark h2,.section.dark p{color:#fff}
.section-head{max-width:760px;margin:0 auto 40px}
.section-head.left{margin-left:0}
.eyebrow{display:block;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--accent-d);margin-bottom:10px}
.section-head h2{font-size:clamp(1.4rem,3vw,1.9rem)}
.section-head p{color:var(--ink-soft);margin-bottom:0}

/* ===== ご挨拶 ===== */
.person{display:grid;grid-template-columns:220px 1fr;gap:40px;align-items:start}
.person-photo{aspect-ratio:4/5;border-radius:var(--radius);overflow:hidden;background:var(--brand-l);border:1px dashed #b7c7d3}
.ph{height:100%;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--ink-soft);font-size:.86rem;padding:14px}
.person-name{margin-bottom:.15em;font-size:1.2rem}
.person-role{display:block;color:var(--ink-soft);font-size:.86rem;margin-bottom:14px}
@media (max-width:720px){.person{grid-template-columns:1fr}.person-photo{max-width:220px}}

/* ===== カード共通 ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{font-size:1.08rem;margin-bottom:.5em}
.card p{color:var(--ink-soft);font-size:.95rem;margin-bottom:0}
.card .num{font-family:var(--font-head);font-size:.86rem;color:var(--accent-d);font-weight:700;display:block;margin-bottom:10px}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}

/* ===== 事業部・サービス一覧 ===== */
.dept-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.dept{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;gap:20px}
.dept .icon{
  flex:none;width:56px;height:56px;border-radius:50%;background:var(--brand-l);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-head);
  font-weight:700;color:var(--brand);font-size:1.1rem;
}
.dept h3{margin-bottom:.4em;font-size:1.08rem}
.dept p{color:var(--ink-soft);font-size:.95rem;margin-bottom:0}
@media (max-width:760px){.dept-list{grid-template-columns:1fr}}

/* ===== 施工事例カード ===== */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.work{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.work-pic{aspect-ratio:4/3;background:var(--brand-l);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;text-align:center;color:var(--ink-soft);font-size:.84rem;padding:14px}
.work-body{padding:22px}
.work-body h3{font-size:1.02rem;margin-bottom:.5em}
.work-meta{display:flex;flex-wrap:wrap;gap:6px 10px;font-size:.78rem;color:var(--ink-soft);margin-bottom:10px}
.work-meta span{background:var(--brand-l);border-radius:999px;padding:3px 10px}
.work-cost{font-family:var(--font-head);font-weight:700;color:var(--accent-d);font-size:1.02rem;margin-bottom:.5em}
.work-body p{color:var(--ink-soft);font-size:.92rem;margin-bottom:0}
@media (max-width:900px){.works{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.works{grid-template-columns:1fr}}

/* ===== 会社概要（定義リスト） ===== */
.spec{display:grid;grid-template-columns:200px 1fr;border-top:1px solid var(--line)}
.spec div{display:contents}
.spec dt{padding:16px 18px;background:var(--brand-l);font-weight:700;border-bottom:1px solid var(--line);font-size:.92rem}
.spec dd{margin:0;padding:16px 18px;border-bottom:1px solid var(--line);font-size:.95rem}
@media (max-width:640px){
  .spec{grid-template-columns:1fr}
  .spec dt{border-bottom:none;padding-bottom:6px}
  .spec dd{padding-top:0}
}

/* ===== テーブル（横スクロール。角丸とスクロールは同じ要素） ===== */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;min-width:560px}
table caption{text-align:left;padding:14px 18px 0;font-size:.86rem;color:var(--ink-soft)}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-soft);font-size:.92rem;white-space:nowrap}
thead th{background:var(--brand-l);white-space:nowrap}
tbody tr:last-child td{border-bottom:none}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:12px;max-width:800px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:4px 20px}
.faq summary{cursor:pointer;padding:15px 0;font-weight:700;font-size:1rem;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:14px;font-size:1.2rem;color:var(--accent-d)}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 0 18px;color:var(--ink-soft);font-size:.95rem}

/* ===== フロー ===== */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.steps li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px 16px;text-align:center}
.steps li::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;margin:0 auto 12px;font-family:var(--font-head)}
.steps h3{font-size:.96rem;margin-bottom:.3em}
.steps p{font-size:.84rem;color:var(--ink-soft);margin-bottom:0}
@media (max-width:900px){.steps{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.steps{grid-template-columns:1fr 1fr}}

/* ===== 事業エリア／訴求バンド ===== */
.band{background:var(--brand-d);color:#fff;border-radius:var(--radius);padding:44px 36px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.band h2{color:#fff;font-size:1.4rem;margin-bottom:.3em}
.band p{color:#d9e4ec;margin-bottom:0}

/* ===== フォーム ===== */
.form{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:700;margin-bottom:7px;font-size:.95rem}
.req{display:inline-block;margin-left:8px;background:#c0453f;color:#fff;font-size:.7rem;border-radius:4px;padding:2px 7px;font-weight:700;vertical-align:middle}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid #c9cfd6;border-radius:8px;
  font-size:1rem;font-family:var(--font-body);background:#fff;
}
.field textarea{min-height:130px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:600px){.field-row{grid-template-columns:1fr}}
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 16px}
.check-grid label{display:flex;align-items:center;gap:7px;font-weight:400;font-size:.92rem}
.check-grid input{width:auto}
@media (max-width:560px){.check-grid{grid-template-columns:1fr 1fr}}
.form-note{font-size:.84rem;color:var(--ink-soft)}
.btn-submit{width:100%;background:var(--accent);color:#fff;border:none;border-radius:999px;padding:16px;font-size:1.05rem;font-weight:700;cursor:pointer}
.btn-submit:hover{background:var(--accent-d)}
.note{background:var(--brand-l);border-radius:var(--radius);padding:22px 26px;max-width:760px;margin:0 auto}
.note h3{font-size:1rem;margin-bottom:.4em}
.note p{color:var(--ink-soft);margin-bottom:0;font-size:.92rem}

/* ===== 連絡先カード（お問い合わせページ） ===== */
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:10px}
.contact-cards .card b{display:block;font-size:1.55rem;font-family:var(--font-head);color:var(--brand-d);margin-bottom:.2em}
.contact-cards .card a{text-decoration:none;color:var(--brand-d)}
@media (max-width:820px){.contact-cards{grid-template-columns:1fr}}

/* ===== フッター ===== */
.footer{background:var(--brand-d);color:#dfe7ee;padding:56px 0 26px}
.footer h3{color:#fff;font-size:1rem;margin-bottom:14px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.15)}
.footer p{color:#c3d0da;font-size:.92rem}
.footer ul li{margin-bottom:8px}
.footer a{text-decoration:none;color:#c3d0da;font-size:.92rem}
.footer a:hover{color:#fff}
.footer-bottom{padding-top:20px;font-size:.8rem;color:#9fb0bd;margin-bottom:0}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* ===== スマホ固定バー ===== */
.sp-bar{display:none}
@media (max-width:900px){
  .sp-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;
    box-shadow:0 -6px 18px rgba(0,0,0,.12);
  }
  .sp-bar a{flex:1;text-align:center;padding:15px 8px;font-weight:700;text-decoration:none;font-size:.95rem}
  .sp-bar a:first-child{background:var(--brand-d);color:#fff}
  .sp-bar a:last-child{background:var(--accent);color:#fff}
  body{padding-bottom:58px}
}

/* ===== 汎用 ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split-pic{aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.split-pic img{width:100%;height:100%;object-fit:cover}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.list-check{margin-bottom:0}
.list-check li{position:relative;padding-left:28px;margin-bottom:10px;font-size:.96rem}
.list-check li::before{content:"◯";position:absolute;left:0;top:0;color:var(--accent-d);font-size:.8rem}