:root{
    --ink:#121826; --sub:#4b5565; --line:#e3e6ec; --bg:#ffffff; --soft:#f5f6f8;
    --navy:#0f1f3d; --accent:#2f8f84; --brand:#66c0b6; --todo:#fff3cd; --todo-ink:#8a5a00;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:"Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased}
  a{color:inherit}
  .wrap{max-width:1080px;margin:0 auto;padding:0 24px}
  .en{font-family:"Inter",sans-serif;letter-spacing:.14em;text-transform:uppercase;font-size:12px;color:var(--accent);font-weight:700}
  h2{font-family:"Noto Serif JP",serif;font-size:clamp(24px,3.2vw,32px);font-weight:700;margin:8px 0 32px;letter-spacing:.04em}
  section{padding:96px 0}
  .todo{background:var(--todo);color:var(--todo-ink);padding:1px 6px;border-radius:3px;font-weight:500}

  /* header */
  header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
  .hd{display:flex;align-items:center;justify-content:space-between;height:68px}
  .logo{display:inline-flex;align-items:center;text-decoration:none}
  .logo img{display:block;height:48px;width:auto}
  footer .logo img{height:44px}
  nav a{text-decoration:none;font-size:14px;margin-left:28px;color:var(--sub)}
  nav a:hover{color:var(--navy)}
  .nav-cta{background:var(--navy);color:#fff!important;padding:8px 18px;border-radius:2px}

  /* hero */
  .hero{background:var(--navy);color:#fff;padding:144px 0 128px;position:relative;overflow:hidden}
  .hero::after{content:"";position:absolute;right:-120px;top:-120px;width:480px;height:480px;border:1px solid rgba(102,192,182,.4);border-radius:50%}
  .hero::before{content:"";position:absolute;right:40px;top:60px;width:260px;height:260px;border:1px solid rgba(102,192,182,.22);border-radius:50%}
  .hero .en{color:var(--brand)}
  .hero-media{position:absolute;inset:0;z-index:0}
  .hero-media video{width:100%;height:100%;object-fit:cover;display:block}
  .hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,31,61,.92) 0%,rgba(15,31,61,.72) 45%,rgba(15,31,61,.25) 100%)}
  .hero .wrap{position:relative;z-index:1}
  .hero::before,.hero::after{z-index:1}
  @media (prefers-reduced-motion:reduce){.hero-media video{display:none}.hero-media{background:url("img/hero-poster.jpg") center/cover}}
  .hero h1{font-family:"Noto Serif JP",serif;font-size:clamp(30px,5vw,52px);line-height:1.5;font-weight:700;letter-spacing:.04em;margin:16px 0 28px;position:relative;z-index:1}
  .nb{display:inline-block}
  .hero p{max-width:600px;color:rgba(255,255,255,.82);position:relative;z-index:1}

  /* message */
  .msg{display:grid;grid-template-columns:1fr 1.6fr;gap:56px;align-items:start}
  .msg p{color:var(--sub);margin-bottom:1.2em}
  .sign{margin-top:24px;font-family:"Noto Serif JP",serif;color:var(--ink)!important}
  .sign small{display:block;font-family:"Noto Sans JP",sans-serif;font-size:13px;color:var(--sub)}

  /* business */
  .biz{background:var(--soft)}
  .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
  .card{background:#fff;padding:36px 32px;display:block;text-decoration:none;color:inherit;transition:background .2s}
  a.card:hover{background:#f7fbfa}
  .card .more{display:inline-block;margin-top:14px;font-size:14px;color:var(--accent);font-weight:500}
  .card .num{font-family:"Inter",sans-serif;color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.1em}
  .card h3{font-size:19px;margin:8px 0 12px;font-weight:700}
  .card p{font-size:14.5px;color:var(--sub)}

  /* products */
  .prods{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
  .prod{border:1px solid var(--line);padding:32px;border-top:3px solid var(--navy)}
  .prod .tag{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.06em}
  .prod h3{font-family:"Inter",sans-serif;font-size:22px;letter-spacing:.06em;margin:6px 0 10px}
  .prod p{font-size:14.5px;color:var(--sub)}
  .prod{display:flex;flex-direction:column}
  .prod .pimg{display:block;aspect-ratio:16/9;object-fit:contain;background:#000;margin:-32px -32px 24px;width:calc(100% + 64px);max-width:none}
  .prod .pimg.cover{object-fit:cover;object-position:center 40%}
  .prod a.link{display:inline-block;margin-top:14px;font-size:14px;color:var(--navy);font-weight:500}

  /* works */
  .gal{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .gal figure{margin:0}
  .gal img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:2px}
  .gal figcaption{font-size:14px;color:var(--sub);margin-top:12px;line-height:1.7}
  .gal figcaption strong{display:block;color:var(--ink);font-size:15px;margin-bottom:2px}

  /* company */
  .co{background:var(--soft)}
  table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}
  th,td{text-align:left;padding:20px 24px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
  th{width:200px;font-weight:500;color:var(--sub);background:#fafbfc}

  /* contact */
  .contact{text-align:center}
  .contact p{color:var(--sub);margin-bottom:32px}
  .btn{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;padding:16px 48px;border-radius:2px;font-weight:500;letter-spacing:.06em}
  .btn:hover{opacity:.9}

  footer{background:var(--navy);color:rgba(255,255,255,.7);padding:40px 0;font-size:13px}
  .ft{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
  .ft .logo{color:#fff;font-size:16px}

  @media (max-width:760px){
    nav a:not(.nav-cta){display:none}
    nav a{margin-left:0}
    section{padding:72px 0}
    .hero{padding:88px 0 80px}
    .msg{grid-template-columns:1fr;gap:16px}
    .grid{grid-template-columns:1fr}
    .gal{grid-template-columns:1fr}
    th,td{display:block;width:100%;padding:12px 18px}
    th{border-bottom:none;padding-bottom:4px}
    td{padding-top:0}
    .wrap{padding:0 16px}
  }

  /* sub pages */
  .page-head{background:var(--navy);color:#fff;padding:96px 0 72px}
  .page-head .en{color:var(--brand)}
  .page-head h1{font-family:"Noto Serif JP",serif;font-size:clamp(28px,4vw,40px);letter-spacing:.06em;margin-top:8px}
  .page-head p{color:rgba(255,255,255,.8);margin-top:16px;max-width:640px}
  .bsec{border-bottom:1px solid var(--line);scroll-margin-top:68px}
  .bsec:nth-of-type(even){background:var(--soft)}
  .bhead{display:flex;align-items:baseline;gap:16px;margin-bottom:8px}
  .bhead .num{font-family:"Inter",sans-serif;color:var(--accent);font-weight:700;font-size:15px;letter-spacing:.1em}
  .lead{color:var(--sub);max-width:760px;margin-bottom:40px}
  .facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:8px}
  .fact{background:#fff;border:1px solid var(--line);padding:20px 22px}
  .fact b{display:block;font-size:13px;color:var(--accent);margin-bottom:4px}
  .fact span{font-size:15px}
  .bsec .gal{grid-template-columns:repeat(2,1fr)}
  .support{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
  .support img{width:100%;display:block;border-radius:2px}
  @media (max-width:760px){
    .page-head{padding:72px 0 56px}
    .bsec .gal,.support{grid-template-columns:1fr}
  }