/* ============================================================
   BUILDON — サイト共通デザイン
   トップ・各事業LP・会社概要・お問い合わせで使用
   ============================================================ */
:root{
  --ink:#1a1a1a;
  --ink-70:#4a4a4a;
  --ink-50:#767066;
  --line:#e7e2db;
  --paper:#ffffff;
  --warm:#faf6f1;
  --accent:#f25c05;
  --font-ja:'Noto Sans JP',sans-serif;
  --font-en:'Inter',sans-serif;
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-ja);
  color:var(--ink);
  background:var(--paper);
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"palt";
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;background:none;border:none;cursor:pointer}

.wrap{max-width:var(--w);margin:0 auto;padding:0 32px}

/* ---- セクション見出し ---- */
.sec-head{margin-bottom:72px}
.sec-label{
  display:flex;align-items:center;gap:14px;
  font-family:var(--font-en);font-size:14px;font-weight:600;
  letter-spacing:.28em;color:var(--ink-70);text-transform:uppercase;
  margin-bottom:22px;
}
.sec-label::before{content:'';width:32px;height:1px;background:var(--accent)}
.sec-title{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:600;line-height:1.4;letter-spacing:.02em;
}
.sec-lead{margin-top:18px;font-size:15.5px;color:var(--ink-70);max-width:36em}

/* ---- 軽いフェードイン ---- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============ HEADER ============ */
.header{
  position:fixed;inset:0 0 auto 0;z-index:100;height:84px;
  display:flex;align-items:center;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease;
}
.header.scrolled{border-bottom-color:var(--line)}
.header-in{
  width:100%;max-width:var(--w);margin:0 auto;padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:46px;width:auto}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.08em}
.gnav{display:flex;align-items:center;gap:38px}
.gnav a{
  font-size:15px;font-weight:500;color:var(--ink);letter-spacing:.06em;
  transition:color .25s ease;
}
.gnav a:hover{color:var(--accent)}
.gnav .nav-cta{
  color:#fff;background:var(--ink);border:1px solid var(--ink);
  padding:12px 30px;border-radius:2px;letter-spacing:.1em;font-size:14px;
  transition:background .25s ease,border-color .25s ease;
}
.gnav .nav-cta:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.menu-btn{display:none;flex-direction:column;gap:6px;padding:6px}
.menu-btn span{width:26px;height:1.5px;background:var(--ink);transition:.3s}
.m-nav{
  display:none;position:fixed;top:84px;left:0;right:0;z-index:99;
  background:#fff;border-bottom:1px solid var(--line);
  padding:12px 32px 28px;
}
.m-nav.open{display:block}
.m-nav a{
  display:block;padding:15px 0;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);letter-spacing:.04em;
}
.m-nav a:last-child{border-bottom:none}
.m-nav .m-sub{font-size:11px;color:var(--ink-50);margin-left:10px;font-family:var(--font-en);letter-spacing:.1em}

/* ============ HERO（トップ：写真背景） ============ */
.hero{
  position:relative;min-height:92vh;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-veil{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,
    rgba(255,255,255,.97) 0%,
    rgba(255,255,255,.92) 38%,
    rgba(255,255,255,.72) 68%,
    rgba(255,255,255,.42) 100%);
}
.hero-in{position:relative;z-index:2;width:100%;max-width:var(--w);margin:0 auto;padding:150px 32px 100px}
.hero-eyebrow{
  font-family:var(--font-en);font-size:14px;font-weight:600;
  letter-spacing:.3em;color:var(--ink-70);text-transform:uppercase;
  display:flex;align-items:center;gap:14px;margin-bottom:36px;
}
.hero-eyebrow::before{content:'';width:44px;height:1px;background:var(--accent)}
.hero-title{
  font-size:clamp(42px,6.4vw,80px);
  font-weight:200;line-height:1.3;letter-spacing:.015em;
  margin-bottom:34px;
}
.hero-title strong{font-weight:600}
.hero-sub{
  font-size:clamp(14.5px,1.3vw,17px);color:var(--ink-70);
  letter-spacing:.06em;line-height:2.2;margin-bottom:56px;font-weight:500;
}
.hero-cta{
  display:inline-flex;align-items:center;gap:18px;
  font-size:15px;font-weight:600;letter-spacing:.14em;
  color:#fff;background:var(--ink);
  padding:20px 56px;border-radius:2px;
  transition:background .3s ease;
}
.hero-cta:hover{background:var(--accent)}
.hero-cta::after{content:'↓';font-family:var(--font-en);font-weight:300}
.hero-foot{
  position:absolute;left:32px;bottom:34px;z-index:2;
  font-family:var(--font-en);font-size:10px;letter-spacing:.32em;
  color:var(--ink-50);text-transform:uppercase;
  display:flex;align-items:center;gap:16px;
}
.hero-foot::after{content:'';width:60px;height:1px;background:var(--line)}

/* ============ LP HERO（下層：写真背景） ============ */
.lp-hero{
  position:relative;
  display:flex;align-items:center;
  min-height:72vh;
  overflow:hidden;
}
.lp-hero .hero-in{padding:170px 32px 100px}

/* ============ BUSINESS カード（写真背景） ============ */
.business{padding:150px 0 140px}
.biz-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:0;
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
.biz-card{
  position:relative;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:52px 40px 46px;
  display:flex;flex-direction:column;
  min-height:400px;
  overflow:hidden;
  transition:transform .4s ease,box-shadow .4s ease;
}
.biz-card::before{
  content:'';position:absolute;inset:0;z-index:0;
  background-image:var(--img);
  background-size:cover;background-position:center;
  transition:transform .5s ease;
}
.biz-card::after{
  content:'';position:absolute;inset:0;z-index:1;
  background:rgba(255,255,255,.88);
  transition:background .4s ease;
}
.biz-card > *{position:relative;z-index:2}
.biz-card:hover{
  transform:scale(1.04);
  z-index:3;
  box-shadow:0 24px 64px -16px rgba(26,20,12,.25);
}
.biz-card:hover::after{background:rgba(255,255,255,.78)}
.biz-card:hover::before{transform:scale(1.05)}
.biz-num{
  font-family:var(--font-en);font-size:12px;font-weight:400;
  letter-spacing:.2em;color:var(--ink-50);margin-bottom:30px;
}
.biz-icon{width:30px;height:30px;stroke:var(--ink);stroke-width:1.1;fill:none;
  stroke-linecap:round;stroke-linejoin:round;margin-bottom:24px}
.biz-name{font-size:22px;font-weight:700;letter-spacing:.04em;margin-bottom:10px}
.biz-en{font-family:var(--font-en);font-size:10.5px;font-weight:500;letter-spacing:.22em;
  color:var(--ink-50);text-transform:uppercase;margin-bottom:20px}
.biz-copy{font-size:14.5px;color:var(--ink-70);line-height:2;flex:1;font-weight:500}
.biz-more{
  margin-top:30px;
  display:inline-flex;align-items:center;gap:12px;
  font-size:16.5px;font-weight:700;letter-spacing:.1em;color:var(--accent);
  border-bottom:2px solid var(--accent);
  padding-bottom:8px;align-self:flex-start;
}
.biz-more span{display:inline-block;font-family:var(--font-en);transition:transform .3s ease}
.biz-card:hover .biz-more span{transform:translateX(6px)}

/* ============ ハイライト（LP用ハイライトグリッド） ============ */
.hl-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
.hl-item{
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:44px 36px 40px;
  background:#fff;
}
.hl-item.warm{background:var(--warm)}
.hl-num{
  font-family:var(--font-en);font-size:12px;letter-spacing:.2em;
  color:var(--ink-50);margin-bottom:24px;
}
.hl-title{font-size:18px;font-weight:700;letter-spacing:.03em;margin-bottom:12px;line-height:1.6}
.hl-text{font-size:14px;color:var(--ink-70);line-height:2}
.hl-list{margin-top:6px}
.hl-list li{
  position:relative;font-size:14px;color:var(--ink-70);
  padding:7px 0 7px 22px;line-height:1.8;
}
.hl-list li::before{
  content:'';position:absolute;left:2px;top:17px;
  width:9px;height:5px;
  border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);
  transform:rotate(-45deg);
}

/* ============ 数値実績 ============ */
.nums{padding:120px 0;background:linear-gradient(180deg,var(--warm) 0%,#fff 100%);border-top:1px solid var(--line)}
.nums-grid{display:grid;grid-template-columns:repeat(2,1fr)}
.num-item{padding:10px 48px;border-left:1px solid var(--line)}
.num-item:first-child{border-left:none;padding-left:0}
.num-tag{font-size:12.5px;font-weight:600;color:var(--ink-50);letter-spacing:.1em;margin-bottom:18px}
.num-val{
  font-family:var(--font-en);font-weight:300;
  font-size:clamp(48px,5.4vw,72px);line-height:1;letter-spacing:-.01em;
  margin-bottom:14px;
}
.num-val small{font-size:.4em;font-weight:400;margin-left:2px;color:var(--ink-70)}
.num-label{font-size:14px;font-weight:600;letter-spacing:.06em}
.num-note{font-size:12px;color:var(--ink-50);margin-top:6px;letter-spacing:.04em}

/* ============ ステップ（流れ） ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
.step{
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:36px 28px 32px;
}
.step-num{
  font-family:var(--font-en);font-size:13px;font-weight:500;
  letter-spacing:.16em;color:var(--accent);margin-bottom:18px;
}
.step-title{font-size:16px;font-weight:700;letter-spacing:.04em;margin-bottom:10px}
.step-text{font-size:13px;color:var(--ink-70);line-height:1.9}

/* ============ ステートメント ============ */
.statement{
  padding:130px 0;background:var(--ink);color:#fff;
}
.statement .sec-label{color:rgba(255,255,255,.5)}
.statement-title{
  font-size:clamp(24px,3vw,38px);font-weight:600;line-height:1.7;letter-spacing:.03em;
  max-width:26em;
}
.statement-text{
  margin-top:28px;font-size:15px;color:rgba(255,255,255,.72);
  line-height:2.1;max-width:38em;
}

/* ============ MESSAGE（代表挨拶） ============ */
.message{padding:140px 0;border-top:1px solid var(--line)}
.message .sec-head{margin-bottom:64px}
.msg-grid{
  display:grid;
  grid-template-columns:40% 1fr;
  gap:72px;
  align-items:start;
}
.msg-photo img{
  width:100%;aspect-ratio:4/5;object-fit:cover;object-position:57% 50%;border-radius:2px;
}
.msg-photo figcaption{
  margin-top:18px;font-size:13px;color:var(--ink-70);letter-spacing:.1em;
  text-align:center;
}
.msg-photo figcaption b{font-weight:600;color:var(--ink);margin-left:12px;font-size:15px}
.msg-lead{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:600;line-height:1.6;letter-spacing:.03em;
  margin-bottom:40px;
}
.msg-lead::after{
  content:'';display:block;width:40px;height:1px;background:var(--accent);
  margin-top:28px;
}
.msg-body{max-width:36em}
.msg-body p{
  font-size:14.5px;line-height:2;color:var(--ink-70);
  letter-spacing:.03em;
}
.msg-body p + p{margin-top:1.6em}
.msg-sign{margin-top:48px}
.msg-sign span{display:block;font-size:12px;color:var(--ink-50);letter-spacing:.1em;margin-bottom:6px}
.msg-sign strong{font-size:19px;font-weight:600;letter-spacing:.14em}

/* ============ 会社概要テーブル ============ */
.company{padding:140px 0;border-top:1px solid var(--line)}
.company-in{display:grid;grid-template-columns:1fr 1.6fr;gap:80px;align-items:start}
.co-table{width:100%;border-collapse:collapse}
.co-table tr{border-bottom:1px solid var(--line)}
.co-table tr:first-child{border-top:1px solid var(--line)}
.co-table th{
  text-align:left;vertical-align:top;white-space:nowrap;
  font-size:12.5px;font-weight:500;color:var(--ink-50);letter-spacing:.12em;
  padding:26px 40px 26px 4px;width:150px;
}
.co-table td{font-size:15px;padding:26px 0;letter-spacing:.03em;line-height:1.9}
.co-link{
  display:inline-flex;align-items:center;gap:12px;margin-top:44px;
  font-size:13px;font-weight:500;letter-spacing:.14em;
  border-bottom:1px solid var(--ink);padding-bottom:6px;
  transition:color .25s ease,border-color .25s ease;
}
.co-link:hover{color:var(--accent);border-color:var(--accent)}
.co-link span{font-family:var(--font-en)}

/* ============ MAP ============ */
.map-frame{border:1px solid var(--line);border-radius:2px;overflow:hidden}
.map-frame iframe{display:block;width:100%;height:400px;border:none}

/* ============ CTA ============ */
.cta{padding:150px 0;text-align:center;border-top:1px solid var(--line)}
.cta-title{
  font-size:clamp(28px,4vw,50px);
  font-weight:700;letter-spacing:.04em;line-height:1.5;
  margin-bottom:22px;
}
.cta-sub{font-size:15px;color:var(--ink-70);letter-spacing:.06em;margin-bottom:52px}
.cta-btn{
  display:inline-block;
  font-size:15px;font-weight:600;letter-spacing:.16em;color:#fff;
  background:var(--accent);
  padding:21px 72px;border-radius:2px;
  transition:opacity .3s ease;
}
.cta-btn:hover{opacity:.85}

/* ============ CONTACT FORM ============ */
.contact{padding:130px 0;background:var(--warm);border-top:1px solid var(--line)}
.contact-box{max-width:760px;margin:0 auto}
.contact .sec-head{text-align:center;margin-bottom:56px}
.contact .sec-label{justify-content:center}
.contact .sec-lead{margin-left:auto;margin-right:auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 28px}
.form-group{display:flex;flex-direction:column;gap:9px}
.form-group.full{grid-column:1/-1}
.form-label{font-size:13px;font-weight:600;letter-spacing:.06em}
.form-label em{font-style:normal;color:var(--accent);margin-left:4px}
.form-input,.form-textarea{
  padding:15px 16px;
  border:1px solid var(--line);border-radius:2px;
  font-size:15px;font-family:var(--font-ja);color:var(--ink);
  background:#fff;outline:none;
  transition:border-color .25s ease;
}
.form-input:focus,.form-textarea:focus{border-color:var(--ink)}
.form-textarea{min-height:150px;resize:vertical}
.form-privacy{
  margin-top:22px;padding:16px 18px;background:#fff;border:1px solid var(--line);
  border-radius:2px;font-size:12px;color:var(--ink-50);line-height:1.9;
}
.form-submit{margin-top:32px;text-align:center}
.form-submit button{
  font-size:15px;font-weight:600;letter-spacing:.16em;color:#fff;
  background:var(--accent);padding:19px 80px;border-radius:2px;
  transition:opacity .3s ease;
}
.form-submit button:hover{opacity:.85}
.thanks{display:none;text-align:center;padding:60px 20px}
.thanks-title{font-size:22px;font-weight:700;margin-bottom:14px}
.thanks-text{font-size:15px;color:var(--ink-70)}

/* ============ FOOTER ============ */
.footer{background:#161616;color:#fff;padding:80px 0 40px}
.footer-in{
  display:flex;justify-content:space-between;gap:48px;flex-wrap:wrap;
  padding-bottom:56px;margin-bottom:32px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.f-brand img{height:44px;margin-bottom:18px}
.f-brand p{font-size:12.5px;color:rgba(255,255,255,.5);letter-spacing:.06em;line-height:2}
.f-nav{display:flex;gap:72px}
.f-col-t{
  font-family:var(--font-en);font-size:10px;font-weight:500;
  letter-spacing:.26em;color:rgba(255,255,255,.38);text-transform:uppercase;
  margin-bottom:18px;
}
.f-col a{
  display:block;font-size:13.5px;color:rgba(255,255,255,.65);
  padding:6px 0;letter-spacing:.05em;transition:color .25s ease;
}
.f-col a:hover{color:#fff}
.f-copy{
  font-family:var(--font-en);font-size:11px;letter-spacing:.1em;
  color:rgba(255,255,255,.3);text-align:center;
}

/* ============ RESPONSIVE ============ */
@media (max-width:900px){
  .wrap,.header-in,.hero-in{padding-left:24px;padding-right:24px}
  .header{height:72px}
  .brand img{height:38px}
  .gnav{display:none}
  .menu-btn{display:flex}
  .m-nav{top:72px}
  .hero{min-height:auto}
  .hero-in{padding-top:140px;padding-bottom:100px}
  .lp-hero .hero-in{padding-top:130px;padding-bottom:80px}
  .hero-veil{background:linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.85) 100%)}
  .hero-foot{display:none}
  .business,.message,.company{padding:90px 0}
  .nums{padding:70px 0}
  .statement{padding:90px 0}
  .cta{padding:100px 0}
  .contact{padding:80px 0}
  .sec-head{margin-bottom:44px}
  .biz-card{min-height:340px}
  .biz-card:hover{transform:none;box-shadow:none}
  .nums-grid{grid-template-columns:1fr}
  .num-item{border-left:none;padding:26px 0;border-bottom:1px solid var(--line)}
  .num-item:first-child{padding-top:0}
  .num-item:last-child{border-bottom:none}
  .msg-grid{grid-template-columns:1fr;gap:44px}
  .msg-photo{max-width:440px}
  .company-in{grid-template-columns:1fr;gap:48px}
  .form-grid{grid-template-columns:1fr}
  .map-frame iframe{height:300px}
  .footer{padding:64px 0 32px}
  .f-nav{gap:48px;flex-wrap:wrap}
}