:root {
    --blue: #1E4FA3;
    --navy: #12315F;
    --ink: #2A3346;
    --pale: #EEF3FB;
    --orange: #F5A623;
    --maxw: 1080px;
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  html { scroll-behavior:smooth; }
  body {
    font-family: "Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic",sans-serif;
    color: var(--ink); background:#fff; line-height:1.9; font-size:16px;
  }
  img { max-width:100%; display:block; }
  .wrap { max-width:var(--maxw); margin:0 auto; padding:0 24px; }
  .eyebrow {
    display:inline-flex; align-items:center; gap:10px;
    font-size:13px; font-weight:700; letter-spacing:.22em; color:var(--blue);
  }
  .eyebrow::before { content:""; width:26px; height:4px; background:var(--orange); border-radius:2px; }
  h2 { font-size:32px; font-weight:900; color:var(--navy); line-height:1.5; margin:14px 0 20px; letter-spacing:.02em; }
  .btn {
    display:inline-block; background:var(--orange); color:#fff; font-weight:900;
    padding:16px 44px; border-radius:999px; text-decoration:none; font-size:17px;
    letter-spacing:.06em; box-shadow:0 6px 0 rgba(200,130,10,.35);
    transition:transform .15s, box-shadow .15s;
  }
  .btn:hover { transform:translateY(2px); box-shadow:0 4px 0 rgba(200,130,10,.35); }

  header {
    position:sticky; top:0; z-index:50; background:rgba(255,255,255,.94);
    backdrop-filter:blur(6px); border-bottom:1px solid #E3E9F4;
  }
  .nav { display:flex; align-items:center; justify-content:space-between; height:68px; }
  .nav img { height:34px; }
  .navbtns { display:flex; align-items:center; gap:12px; }
  .login {
    color:var(--blue); border:1.5px solid var(--blue); border-radius:999px;
    padding:5px 16px; font-weight:700; text-decoration:none; font-size:12.5px; white-space:nowrap;
    transition:background .15s,color .15s;
  }
  .login:hover { background:var(--blue); color:#fff; }
  .navcontact {
    background:var(--orange); color:#fff; border:1.5px solid var(--orange); border-radius:999px;
    padding:5px 16px; font-weight:700; text-decoration:none; font-size:12.5px; white-space:nowrap;
    transition:opacity .15s;
  }
  .navcontact:hover { opacity:.85; }

  .hero { position:relative; overflow:hidden; background:#fff; }
  .hero::after {
    content:""; position:absolute; left:0; right:0; bottom:0; height:220px;
    background:url('../img/grid.svg') bottom/cover no-repeat; pointer-events:none;
  }
  .hero .wrap {
    position:relative; z-index:1; display:grid; grid-template-columns:1.05fr .95fr;
    gap:48px; align-items:center; padding-top:40px; padding-bottom:96px;
  }
  .hero h1 { font-size:44px; font-weight:900; color:var(--navy); line-height:1.45; letter-spacing:.02em; }
  .hero h1 .or { color:var(--orange); }
  .hero p.lead { margin:22px 0 34px; font-size:16.5px; }
  .hero .tag {
    display:inline-block; background:var(--blue); color:#fff; font-size:13px;
    font-weight:700; letter-spacing:.14em; padding:6px 18px; border-radius:999px; margin-bottom:20px;
  }

  .problem { background:var(--navy); color:#fff; padding:84px 0; }
  .problem h2 { color:#fff; }
  .qs { margin-top:34px; display:grid; gap:22px; }
  .q { display:flex; gap:18px; align-items:flex-start; font-size:18px; font-weight:700; line-height:1.8; }
  .q .n {
    flex:0 0 auto; width:34px; height:34px; border-radius:50%; background:var(--orange);
    color:var(--navy); font-weight:900; display:flex; align-items:center; justify-content:center; font-size:16px; margin-top:4px;
  }
  .problem .kicker { margin-top:38px; font-size:16px; color:#BCCDE9; }

  .features { background:var(--pale); padding:92px 0; }
  .grid { display:grid; grid-template-columns:repeat(3,1fr); gap:26px; margin-top:44px; }
  .card {
    background:#fff; border-radius:18px; padding:30px 26px 32px;
    border:1px solid #DDE6F5; box-shadow:0 2px 10px rgba(18,49,95,.05);
  }
  .card img { width:132px; height:132px; margin:0 auto 18px; }
  .card h3 {
    font-size:19px; font-weight:900; color:var(--navy); text-align:center;
    margin-bottom:12px; letter-spacing:.02em; line-height:1.5;
  }
  .card p { font-size:14.5px; line-height:1.95; }

  .philo { padding:92px 0; }
  .philo .inner { max-width:760px; }
  .philo blockquote {
    margin-top:26px; padding:6px 0 6px 26px; border-left:6px solid var(--orange);
    font-size:16.5px;
  }

  .pdca { background:var(--pale); padding:92px 0; }
  .pdca .head { max-width:760px; }
  .pdca .flow {
    margin-top:38px; background:#fff; border:1px solid #DDE6F5; border-radius:18px;
    padding:26px;
  }
  .pdca .flow img { margin:0 auto; }
  .pdca .flow .lockup { width:min(440px, 80%); margin:6px auto 22px; }
  .loop {
    margin-top:26px; background:#fff; border:1px solid #DDE6F5; border-radius:14px;
    padding:20px 24px; font-weight:700; color:var(--navy); font-size:15px; line-height:2.1;
    display:inline-block;
  }
  .loop .a { color:var(--orange); font-weight:900; padding:0 4px; }

  .cta {
    position:relative; background:var(--navy); color:#fff; text-align:center;
    padding:96px 0 104px; overflow:hidden;
  }
  .cta::before {
    content:""; position:absolute; left:0; right:0; bottom:0; height:200px;
    background:url('../img/grid.svg') bottom/cover no-repeat; opacity:.5; filter:brightness(3);
  }
  .cta h2 { color:#fff; font-size:34px; }
  .cta .btn { margin-top:30px; position:relative; z-index:1; }

  footer { background:var(--pale); color:#4A5A75; font-size:13px; padding:52px 0 30px; border-top:1px solid #DDE6F5; }
  .fgrid { display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr 1fr 1fr; gap:28px; }
  .fbrand img { height:32px; width:auto; margin-bottom:14px; }
  .fbrand p { line-height:1.9; color:#4A5A75; }
  .fcol h4 { font-size:13px; font-weight:900; color:var(--navy); margin-bottom:12px; letter-spacing:.04em; }
  .fcol ul { list-style:none; }
  .fcol li { margin-bottom:8px; line-height:1.6; }
  .fcol a { color:#4A5A75; text-decoration:none; }
  .fcol a:hover { color:var(--blue); text-decoration:underline; }
  .fsns { display:flex; align-items:center; gap:14px; }
  .fsns img { height:22px; width:auto; display:block; }
  .fsns a { font-weight:700; color:var(--blue); text-decoration:none; }
  .fsns a:hover { text-decoration:underline; }
  .copyright { margin-top:38px; border-top:1px solid #DDE6F5; padding-top:16px; color:#7A8CA8; text-align:center; }
  @media (max-width: 860px) {
    .navbtns { gap:8px; }
    .navbtns a { padding:4px 10px; font-size:11px; }
    .hero .wrap { grid-template-columns:1fr; }
    .grid { grid-template-columns:1fr; }
    .hero h1 { font-size:32px; }
    h2 { font-size:26px; }
    .fgrid { grid-template-columns:1fr 1fr; }
  }