:root{
  --green-dark:#213b2b;
  --green:#4d7c5f;
  --green-soft:#eef2ea;
  --ink:#232323;
  --cream:#fbfaf6;
  --line:rgba(33,59,43,.14);
  --accent:#c9a24b;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Yu Mincho","YuMincho","Hiragino Mincho ProN",serif;
  color:var(--ink);
  background:var(--cream);
  line-height:2;
  letter-spacing:.02em;
}
.en{font-family:"Avenir Next","Helvetica Neue",Arial,sans-serif;letter-spacing:.22em;}

header{position:fixed;top:0;left:0;right:0;z-index:900;transition:.3s;padding:22px 0;}
header.solid{background:rgba(251,250,246,.96);box-shadow:0 2px 14px rgba(0,0,0,.06);padding:12px 0;}
.nav-wrap{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 34px;}
.logo{display:inline-flex;align-items:center;background:rgba(255,255,255,.92);padding:6px 14px;border-radius:6px;transition:.3s;}
.logo a{display:block;line-height:0;text-decoration:none;}
.logo img{height:32px;width:auto;display:block;}
header.solid .logo{background:transparent;padding:0;}
nav ul{display:flex;gap:30px;list-style:none;margin:0;padding:0;font-family:"Avenir Next","Helvetica Neue",Arial,sans-serif;}
nav a{color:#fff;text-decoration:none;font-size:14px;letter-spacing:.14em;font-weight:500;transition:.3s;text-shadow:0 1px 3px rgba(0,0,0,.9),0 2px 6px rgba(0,0,0,.55);}
header.solid nav a{color:var(--green-dark);text-shadow:none;}
nav a:hover{color:var(--accent);}

.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:30px;height:24px;background:none;border:none;padding:0;cursor:pointer;z-index:950;}
.nav-toggle span{display:block;width:100%;height:2px;background:#fff;transition:.3s;box-shadow:0 1px 2px rgba(0,0,0,.5);}
header.solid .nav-toggle span{background:var(--green-dark);box-shadow:none;}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.nav-overlay{display:none;}

.hero{position:relative;height:100vh;height:100dvh;min-height:560px;overflow:hidden;}
.hero-grid{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,1fr);}
.hero-grid .hero-cell{overflow:hidden;}
.hero-grid img{width:100%;height:100%;object-fit:cover;display:block;transform:scale(1.04);}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(4,8,5,.42) 0%,rgba(4,8,5,0) 18%);}
.hero-text{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;}
.hero-text .en{display:inline-block;background:rgba(6,10,7,.4);border-radius:4px;padding:6px 16px;font-size:15px;margin:16px 0 0;color:#ffffff;font-weight:600;text-shadow:0 1px 3px rgba(0,0,0,1),0 2px 8px rgba(0,0,0,.75);}
.hero-text h1{display:inline-block;background:rgba(6,10,7,.4);border-radius:4px;padding:8px 18px;font-size:16px;font-weight:600;letter-spacing:.28em;margin:0 0 16px;color:#ffffff;text-shadow:0 1px 3px rgba(0,0,0,1),0 2px 8px rgba(0,0,0,.75);}
.hero-text .catch{display:inline-block;background:rgba(6,10,7,.4);border-radius:6px;padding:16px 30px;font-size:38px;font-weight:700;margin:0;letter-spacing:.06em;color:#ffffff;text-shadow:0 1px 4px rgba(0,0,0,1),0 3px 14px rgba(0,0,0,.8);}
.hero-text .catch br.mobile-break{display:none;}
.scroll-cue{position:absolute;bottom:30px;left:50%;z-index:2;transform:translateX(-50%);width:1px;height:60px;background:rgba(255,255,255,.6);}

section{padding:130px 34px;max-width:1200px;margin:0 auto;}
.eyebrow{text-align:center;font-family:"Avenir Next","Helvetica Neue",Arial,sans-serif;font-size:12px;letter-spacing:.3em;color:var(--accent);margin-bottom:18px;}
h2.section-title{text-align:center;font-size:30px;font-weight:600;margin:0 0 70px;color:var(--green-dark);}
.lead{text-align:center;max-width:640px;margin:-40px auto 70px;font-size:14px;color:#666;font-family:sans-serif;line-height:1.9;}

.split{display:grid;grid-template-columns:1.1fr .9fr;gap:0;align-items:center;margin-bottom:120px;position:relative;}
.split.reverse{grid-template-columns:.9fr 1.1fr;}
.split .photo{position:relative;}
.split .photo img{width:100%;height:auto;display:block;box-shadow:0 20px 50px rgba(30,50,30,.18);}
.split .copy{padding:0 60px;}
.split.reverse .copy{order:-1;}
.split h3{font-size:22px;color:var(--green-dark);margin:0 0 20px;font-weight:600;}
.split p{font-size:14px;font-family:sans-serif;color:#555;line-height:2;}

.full-copy{max-width:720px;margin:0 auto 100px;text-align:center;}
.full-copy h3{font-size:22px;color:var(--green-dark);margin:0 0 20px;}
.full-copy p{font-size:14px;font-family:sans-serif;color:#555;text-align:left;}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line);}
.card{background:var(--cream);text-align:center;padding:0;position:relative;overflow:hidden;}
.card .imgwrap{overflow:hidden;height:170px;}
.card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease;}
.card:hover img{transform:scale(1.08);}
.card .card-body{padding:26px 18px 34px;}
.card .en{font-size:10px;color:var(--accent);display:block;margin-bottom:8px;}
.card h4{margin:0 0 10px;color:var(--green-dark);font-size:16px;font-weight:600;}
.card p{font-size:12.5px;color:#666;margin:0;font-family:sans-serif;line-height:1.8;}

.mission-flow{display:flex;flex-wrap:wrap;justify-content:center;gap:0;margin-bottom:60px;}
.mission-flow .item{flex:1 1 220px;text-align:center;padding:0 22px;position:relative;}
.mission-flow .item:not(:last-child)::after{content:"—";position:absolute;right:-4px;top:6px;color:var(--accent);font-family:sans-serif;}
.mission-flow .num{font-family:"Avenir Next",sans-serif;font-size:11px;color:var(--accent);letter-spacing:.2em;}
.mission-flow h4{color:var(--green-dark);font-size:15px;margin:10px 0 12px;}
.mission-flow p{font-family:sans-serif;font-size:12.5px;color:#666;line-height:1.8;text-align:left;}
.mission-photos{display:grid;grid-template-columns:1fr 1fr;gap:2px;}
.mission-photos .imgwrap{overflow:hidden;height:320px;}
.mission-photos img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .8s ease;}
.mission-photos .imgwrap:hover img{transform:scale(1.06);}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;}
.gallery .imgwrap{overflow:hidden;height:260px;}
.gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease;filter:saturate(1.02);}
.gallery .imgwrap:hover img{transform:scale(1.1);}
.gallery.gallery-2col{grid-template-columns:repeat(2,1fr);}
.gallery.gallery-2col .imgwrap{height:380px;}

.members{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.member{text-align:center;}
.member .imgwrap{overflow:hidden;border-radius:2px;aspect-ratio:2/3;margin-bottom:14px;}
.member img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(.15);transition:transform .6s ease, filter .6s ease;}
.member:hover img{transform:scale(1.06);filter:grayscale(0);}
.member .name{font-size:16px;font-weight:600;color:var(--green-dark);}
.member .role{font-family:sans-serif;font-size:10.5px;color:#999;letter-spacing:.1em;margin-top:2px;}

.old-site-note{text-align:center;font-family:sans-serif;font-size:12px;color:#888;max-width:800px;margin:20px auto 0;}
.service-extra{margin-top:60px;display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.service-extra h4{color:var(--green-dark);font-size:17px;margin:0 0 14px;}
.service-extra p{font-family:sans-serif;font-size:13px;color:#666;line-height:1.9;}
.service-extra ul{font-family:sans-serif;font-size:13px;color:#666;line-height:1.9;margin:10px 0 0;padding-left:20px;}

.corp-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:center;}
.corp-wrap .imgwrap{overflow:hidden;}
.corp-wrap img{width:100%;height:auto;display:block;}
table.corp{width:100%;border-collapse:collapse;font-family:sans-serif;font-size:13px;}
table.corp th,table.corp td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line);vertical-align:top;font-weight:400;}
table.corp th{width:120px;color:var(--green-dark);font-weight:600;letter-spacing:.05em;}

.cta-box{text-align:center;background:var(--green-dark);color:#f2efe6;padding:90px 34px;margin:0;max-width:100%;}
.cta-box h2{color:#fff;}
.cta-box .eyebrow{color:var(--accent);}
.cta-box p{font-family:sans-serif;font-size:14px;max-width:600px;margin:0 auto 30px;color:#d8ded4;text-align:left;}
.btn{display:inline-block;border:1px solid #fff;color:#fff;padding:14px 40px;font-family:sans-serif;font-size:12.5px;letter-spacing:.15em;text-decoration:none;transition:.3s;}
.btn:hover{background:#fff;color:var(--green-dark);}

.contact-section{max-width:100%;background:var(--green-soft);padding:130px 34px;}
.contact-inner{max-width:1200px;margin:0 auto;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line);margin-top:50px;}
.contact-grid .box{background:var(--cream);padding:40px;}
.contact-grid h4{color:var(--green-dark);margin:0 0 14px;font-size:16px;}
.contact-grid p{font-family:sans-serif;font-size:13px;color:#555;margin:6px 0;}

footer{background:var(--green-dark);color:#c9d4c9;text-align:center;padding:60px 20px 40px;font-family:sans-serif;font-size:11.5px;letter-spacing:.05em;}
footer .fen{font-family:"Avenir Next",sans-serif;font-size:16px;letter-spacing:.2em;color:#fff;margin-bottom:16px;}
footer a{color:#c9d4c9;text-decoration:none;margin:0 12px;}
footer .copyright{margin-top:24px;color:#7d9080;font-size:10.5px;letter-spacing:.1em;}

.note{background:#fff7e6;border:1px solid #e8d9a8;color:#7a5c00;font-family:sans-serif;font-size:12px;padding:12px 16px;border-radius:3px;margin:30px auto 0;max-width:900px;text-align:center;}

@media (max-width:900px){
  .split, .split.reverse{grid-template-columns:1fr;}
  .split .copy{padding:40px 4px 0;}
  .split.reverse .copy{order:0;}
  .cards{grid-template-columns:repeat(2,1fr);}
  .members{grid-template-columns:repeat(2,1fr);}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .gallery.gallery-2col .imgwrap{height:220px;}
  .mission-flow .item::after{display:none;}
  .corp-wrap{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .service-extra{grid-template-columns:1fr;}

  .nav-toggle{display:flex;}

  nav{position:fixed;top:0;right:-78%;width:78%;max-width:320px;height:100vh;height:100dvh;background:var(--cream);box-shadow:-6px 0 24px rgba(0,0,0,.18);transition:right .35s ease;padding:110px 32px 40px;overflow-y:auto;z-index:940;}
  nav.open{right:0;}
  nav ul{display:flex;flex-direction:column;gap:8px;font-family:"Yu Mincho","YuMincho","Hiragino Mincho ProN",serif;}
  nav ul li{border-bottom:1px solid var(--line);}
  nav a{display:block;padding:16px 4px;color:var(--green-dark) !important;text-shadow:none !important;font-size:14px;letter-spacing:.1em;}

  .nav-overlay{display:none;position:fixed;inset:0;background:rgba(15,20,15,.45);z-index:890;opacity:0;pointer-events:none;transition:opacity .35s ease;}
  .nav-overlay.open{display:block;opacity:1;pointer-events:auto;}

  .hero-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(4,1fr);}

  .hero-text h1{letter-spacing:.05em;white-space:nowrap;padding:6px 14px;margin-bottom:12px;}
  .hero-text .catch br.mobile-break{display:inline;}
  .hero-text .catch{font-size:26px;letter-spacing:.03em;white-space:nowrap;padding:12px 22px;}
  .hero-text .en{font-size:13px;letter-spacing:.05em;white-space:nowrap;padding:5px 12px;margin-top:12px;margin-bottom:0;}
}

/* WebP対応（2026-08-24 追加）
   <picture>でimgを包むと、img{height:100%}の基準が<picture>(高さauto)になり
   object-fit:coverのレイアウトが崩れる。display:contentsで<picture>のボックスを
   生成させず、imgを従来通り.imgwrap等の直接の子として扱わせる。 */
picture{display:contents;}

/* モバイル改行 br.mobile-break の汎用化（2026-08-24 追加）
   従来は .hero-text .catch 内だけの定義だったため、他の見出しでも使えるようにした。
   ヒーローの既存ルール（.hero-text .catch br.mobile-break）は詳細度が高いので影響なし。
   ブレイクポイントはサイト唯一の @media (max-width:900px) に合わせている
   （ハンバーガーメニューが出る幅と同じ）。 */
br.mobile-break{display:none;}
@media (max-width:900px){
  br.mobile-break{display:inline;}
}

/* SERVICEカードの本文を左揃えに（2026-08-24 追加）
   .card{text-align:center} を継承していたため中央揃えになっていた。
   ラベル(.en)と見出し(h4)は中央揃えのまま維持し、本文のみ左揃えにする。 */
.card p{text-align:left;}