:root{
  /* 主役：ターコイズを少しだけ青に寄せたトーン。
     透明感と上品さは保ちつつ、緑みを減らし青みを一段足す */
  --blue:#1294bd;          /* 主役 — 青寄りターコイズ */
  --blue-d:#0e789c;        /* 濃いめ（ホバー・押し色） */
  --blue-l:#3fbad9;        /* 明るめ（グラデの片側） */
  --blue-50:#e7f3f8;       /* ごく淡い面 */
  --blue-100:#cce4ee;      /* 淡い枠・帯 */
  --ink:#16262e;           /* テキスト濃色 — 青みの濃紺、漆黒は避ける */
  --slate:#4b5a62;         /* 本文 — ブルーグレー */
  --slate-l:#83929b;       /* 補助 */
  --white:#ffffff;
  --bg:#f4f9fb;            /* 背景 — 青をひと匙含んだオフホワイト */
  --bg-2:#e8f1f4;          /* セクション交互背景 */
  --line:#d8e4e9;          /* 境界線 — 背景より一段だけ濃い */
  --line-2:#e4edf0;        /* さらに淡い線 */
  --shadow:rgba(14,120,156,.1);   /* 影は青ターコイズベース、黒は使わない */
  --shadow-blue:rgba(18,148,189,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Zen Kaku Gothic New","Manrope",sans-serif;
  background:var(--bg);color:var(--ink);
  line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
@media(max-width:640px){.wrap{padding:0 22px}}
.mono{font-family:"Manrope",sans-serif}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.07s}.d2{transition-delay:.14s}.d3{transition-delay:.21s}.d4{transition-delay:.28s}

/* ===== nav ===== */
header.nav{position:fixed;top:0;left:0;right:0;z-index:200;padding:20px 0;transition:.4s}
header.nav.scrolled{padding:12px 0;background:rgba(251,252,254,.85);backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand .mark{width:30px;height:30px;border-radius:8px;background:var(--blue);position:relative;flex:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.brand .mark::after{content:"";position:absolute;inset:8px 8px auto auto;width:8px;height:8px;border-radius:2px;background:#fff;opacity:.92}
.brand .txt{display:flex;flex-direction:column;line-height:1.15}
.brand .jp{font-weight:700;font-size:16px;letter-spacing:.04em}
.brand .en{font-family:"Manrope";font-size:10px;letter-spacing:.22em;color:var(--blue);text-transform:uppercase;font-weight:600}
.menu{display:flex;align-items:center;gap:22px;list-style:none}
.menu a{text-decoration:none;color:var(--slate);font-size:14px;font-weight:500;transition:color .3s;white-space:nowrap}
.menu a:hover{color:var(--ink)}
.menu .cta{background:var(--blue);color:#fff;padding:10px 22px;border-radius:8px;font-size:13.5px;font-weight:600;box-shadow:0 4px 14px var(--shadow-blue);transition:.3s}
.menu .cta:hover{background:var(--blue-d);transform:translateY(-1px);color:#fff}
@media(max-width:1100px){.menu{gap:16px}.menu a{font-size:13px}.menu .cta{padding:9px 16px;font-size:12.5px}}
@media(max-width:900px){.menu{gap:12px}.menu a{font-size:12.5px}.menu .cta{padding:8px 13px;font-size:12px}}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;z-index:210}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
@media(max-width:760px){
  .menu{position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100vh;background:var(--white);flex-direction:column;justify-content:center;gap:28px;transform:translateY(-100%);transition:transform .5s cubic-bezier(.16,1,.3,1);z-index:190;margin:0;padding:0}
  .menu.open{transform:none}.menu a{font-size:20px}
  .burger{display:flex}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ===== hero ===== */
.hero{position:relative;padding:170px 0 110px;overflow:hidden}
.hero::before{content:"";position:absolute;top:-200px;right:-150px;width:760px;height:760px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,186,217,.2),transparent 62%);z-index:0}
.hero::after{content:"";position:absolute;inset:0;z-index:0;opacity:.55;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000,transparent 75%)}
.hero .wrap{position:relative;z-index:2}
.pill{display:inline-flex;align-items:center;gap:10px;background:var(--white);border:1px solid var(--line);
  padding:7px 8px 7px 16px;border-radius:100px;font-size:13px;color:var(--slate);box-shadow:0 2px 12px rgba(15,23,41,.04);
  opacity:0;animation:fade .8s .1s forwards}
.pill b{background:var(--blue-50);color:var(--blue-d);font-weight:600;font-size:11px;padding:4px 10px;border-radius:100px;letter-spacing:.02em}
.hero h1{font-weight:700;line-height:1.32;letter-spacing:.01em;margin-top:34px;max-width:100%}
.hero h1 .ln{display:block;overflow:hidden;padding-bottom:.25em}
.hero h1 .ln i{display:block;font-style:normal;transform:translateY(110%);transition:transform 1s cubic-bezier(.16,1,.3,1);white-space:nowrap;padding-bottom:.05em}
.hero.ready h1 .ln i{transform:none}
.hero h1 .ln:nth-child(2) i{transition-delay:.12s}
.hero h1 .grad{background:linear-gradient(110deg,var(--blue-d),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h1.catch .en{font-family:"Manrope",sans-serif;font-weight:800;font-size:clamp(34px,6.4vw,82px);letter-spacing:-.01em;line-height:1.15;background:linear-gradient(110deg,var(--blue-d),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;padding-bottom:.18em}
.hero h1.catch .jp{font-weight:700;font-size:clamp(20px,3.6vw,42px);letter-spacing:.02em;line-height:1.45;color:var(--ink);margin-top:22px}
@media(max-width:520px){.hero h1.catch .en{font-size:clamp(28px,8.5vw,40px);white-space:normal}.hero h1.catch .jp{font-size:clamp(17px,4.8vw,26px);white-space:normal}}
.hero p.lead{max-width:54ch;color:var(--slate);font-size:17px;line-height:2;margin-top:32px;opacity:0;animation:fade 1s .6s forwards}
.hero .actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap;opacity:0;animation:fade 1s .8s forwards}
.btn-blue{background:var(--blue);color:#fff;text-decoration:none;padding:15px 32px;border-radius:10px;font-size:15px;font-weight:600;box-shadow:0 6px 20px rgba(12,133,147,.26);transition:.3s}
.btn-blue:hover{background:var(--blue-d);transform:translateY(-2px);box-shadow:0 10px 26px rgba(12,133,147,.34)}
.btn-ghost{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;padding:15px 26px;border-radius:10px;border:1px solid var(--line);font-size:15px;font-weight:600;background:var(--white);transition:.3s}
.btn-ghost:hover{border-color:var(--blue-l);color:var(--blue-d)}
@keyframes fade{to{opacity:1}}
.hcap{margin-top:72px;padding-top:30px;border-top:1px solid var(--line);opacity:0;animation:fade 1s 1s forwards}
.hcap-label{display:block;font-family:"Manrope";font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);font-weight:700;margin-bottom:18px}
.hcap-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.hcap-row span:not(.sep){font-weight:700;font-size:clamp(15px,1.8vw,18px);letter-spacing:.03em;color:var(--ink);position:relative}
.hcap-row .sep{width:5px;height:5px;border-radius:50%;background:var(--blue);opacity:.5;flex:none}
@media(max-width:620px){.hcap-row{gap:14px}.hcap-row .sep{display:none}.hcap-row span:not(.sep){font-size:14px}}


/* ===== section base ===== */
section.blk{padding:130px 0}
@media(max-width:640px){section.blk{padding:84px 0}}
.kicker{display:inline-flex;align-items:center;gap:10px;font-family:"Manrope";font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:22px}
.kicker::before{content:"";width:24px;height:2px;background:var(--blue);border-radius:2px}
h2.head{font-weight:700;font-size:clamp(28px,4vw,44px);line-height:1.45;letter-spacing:.01em}
.lead-sub{color:var(--slate);font-size:16.5px;line-height:2;margin-top:20px;max-width:58ch}

/* ===== about / split ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:40px}}
.about-visual{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--white);padding:40px;box-shadow:0 24px 60px rgba(15,23,41,.06)}
.about-visual .row{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line-2)}
.about-visual .row:last-child{border-bottom:none}
.about-visual .row .l{display:flex;align-items:center;gap:14px;flex:none}
.about-visual .dotc{width:36px;height:36px;border-radius:9px;background:var(--blue-50);display:flex;align-items:center;justify-content:center;color:var(--blue-d);font-family:"Manrope";font-weight:700;font-size:14px;flex:none}
.about-visual .row .name{font-weight:600;font-size:15px;white-space:nowrap}
.about-visual .row .v{font-family:"Manrope";font-weight:700;color:var(--blue);font-size:15px}
.about-visual .bar{height:6px;border-radius:6px;background:var(--blue-50);overflow:hidden;flex:1;min-width:50px}
.about-visual .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--blue-l));border-radius:6px}

/* ===== services ===== */
.services{background:var(--bg-2)}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:60px}
@media(max-width:1080px){.svc-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.svc-grid{grid-template-columns:1fr}}
.svc{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:40px 28px;transition:.35s;position:relative}
.svc:hover{transform:translateY(-6px);border-color:var(--blue-100);box-shadow:0 18px 44px rgba(12,133,147,.12)}
.svc .ix{font-family:"Manrope";font-weight:700;font-size:13px;color:var(--blue);letter-spacing:.08em}
.svc .glyph{width:52px;height:52px;border-radius:13px;background:var(--blue-50);margin:18px 0 26px;display:flex;align-items:center;justify-content:center}
.svc .glyph svg{width:26px;height:26px;stroke:var(--blue-d);fill:none;stroke-width:1.6}
.svc h3{font-weight:700;font-size:17px;letter-spacing:-.01em;margin-bottom:14px;line-height:1.45;white-space:nowrap}
.svc p{color:var(--slate);font-size:14.5px;line-height:1.95}
.svc .more{display:inline-flex;align-items:center;gap:7px;margin-top:24px;font-size:13.5px;font-weight:600;color:var(--blue-d);text-decoration:none}
.svc .more svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .3s}
.svc:hover .more svg{transform:translateX(4px)}

/* ===== approach ===== */
.approach .steps{margin-top:64px;display:grid;grid-template-columns:repeat(3,1fr);gap:0}
@media(max-width:780px){.approach .steps{grid-template-columns:1fr;gap:40px}}
.step{padding:0 36px;position:relative}
.step:not(:last-child)::after{content:"";position:absolute;top:14px;right:-1px;width:1px;height:calc(100% - 14px);background:var(--line)}
@media(max-width:780px){.step{padding:0}.step::after{display:none}}
.step .ph{font-family:"Manrope";font-weight:700;font-size:13px;color:var(--blue);letter-spacing:.1em;display:flex;align-items:center;gap:12px;margin-bottom:22px}
.step .ph .num{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--blue);display:flex;align-items:center;justify-content:center;font-size:13px}
.step h4{font-weight:700;font-size:20px;margin-bottom:12px;letter-spacing:.02em}
.step p{color:var(--slate);font-size:14.5px;line-height:1.95}

/* ===== statement / philosophy ===== */
.statement{position:relative;background:linear-gradient(160deg,#103a4a,#16262e);color:#fff;border-radius:0;overflow:hidden}
.statement::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(720px 420px at 80% 4%,rgba(63,186,217,.18),transparent 60%),radial-gradient(560px 360px at 8% 100%,rgba(18,148,189,.12),transparent 62%)}
.statement::after{content:"\201C";position:absolute;top:40px;left:32px;font-family:Georgia,serif;font-size:200px;line-height:1;color:rgba(63,186,217,.12);z-index:0}
.statement .wrap{position:relative;z-index:2}
.statement .kicker{color:var(--blue-l)}
.bigstate{font-weight:700;font-size:clamp(26px,4.4vw,50px);line-height:1.55;letter-spacing:.02em;margin-top:8px;border:none}
.bigstate .grad-t{background:linear-gradient(110deg,var(--blue-l),#8fd4ec);-webkit-background-clip:text;background-clip:text;color:transparent}
.state-sub{color:#aebec6;font-size:16.5px;line-height:2.1;max-width:64ch;margin-top:36px}
.kwrow{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:72px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);border-radius:14px;overflow:hidden}
@media(max-width:720px){.kwrow{grid-template-columns:1fr}}
.kw{background:linear-gradient(180deg,rgba(255,255,255,.03),transparent);padding:34px 32px;display:flex;flex-direction:column;gap:10px;transition:background .4s}
.kw:hover{background:linear-gradient(180deg,rgba(63,186,217,.1),transparent)}
.kw-en{font-family:"Manrope";font-weight:700;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-l)}
.kw-jp{font-weight:700;font-size:19px;letter-spacing:.03em;color:#fff}

/* ===== cta ===== */
.cta{padding:130px 0}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:24px;padding:64px 56px;position:relative;overflow:hidden;box-shadow:0 30px 70px rgba(15,23,41,.07);display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:start}
.contact-card::before{content:"";position:absolute;top:-180px;left:-80px;width:520px;height:340px;background:radial-gradient(ellipse,rgba(63,186,217,.16),transparent 65%);pointer-events:none}
@media(max-width:880px){.contact-card{grid-template-columns:1fr;gap:44px;padding:48px 30px}}
.contact-left{position:relative;z-index:2}
.contact-left h2{font-weight:700;font-size:clamp(22px,2.8vw,34px);line-height:1.4;letter-spacing:.01em;margin-top:4px}
.contact-left p{margin-top:20px;color:var(--slate);font-size:15.5px;line-height:2}
.contact-info{list-style:none;margin-top:32px;border-top:1px solid var(--line);padding-top:24px}
.contact-info li{display:flex;gap:18px;padding:10px 0;font-size:14.5px}
.ci-label{flex:none;width:64px;color:var(--blue-d);font-weight:700;font-size:12px;letter-spacing:.08em;padding-top:3px}
.ci-val{color:var(--ink);font-weight:500;line-height:1.7}
.ci-val small{color:var(--slate-l);font-weight:400;margin-left:6px;font-size:12px}

/* form */
.contact-form{position:relative;z-index:2}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:520px){.field-row{grid-template-columns:1fr;gap:0}}
.contact-form label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px;letter-spacing:.02em}
.req{display:inline-block;background:var(--blue-50);color:var(--blue-d);font-size:10px;font-weight:700;padding:2px 7px;border-radius:4px;margin-left:6px;letter-spacing:.04em;vertical-align:middle}
.contact-form input[type=text],.contact-form input[type=email],.contact-form input[type=tel],.contact-form textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:13px 14px;font-family:inherit;font-size:15px;color:var(--ink);background:var(--bg);transition:.25s;-webkit-appearance:none}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:#aab6bb}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(18,148,189,.14)}
.contact-form textarea{resize:vertical;min-height:120px;line-height:1.7}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{position:relative;margin:0}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:inline-block;border:1px solid var(--line);border-radius:100px;padding:8px 16px;font-size:13px;font-weight:500;color:var(--slate);cursor:pointer;transition:.2s;background:var(--bg)}
.chip span:hover{border-color:var(--blue-l)}
.chip input:checked + span{background:var(--blue);border-color:var(--blue);color:#fff}
.agree{display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:500;color:var(--slate);cursor:pointer;margin:6px 0 22px}
.agree input{width:17px;height:17px;accent-color:var(--blue);flex:none}
.pp-link{color:var(--blue-d);text-decoration:underline;text-underline-offset:2px}
.pp-link:hover{color:var(--blue)}
.form-submit{width:100%;border:none;cursor:pointer;font-family:inherit;font-size:15.5px;text-align:center;padding:16px}
.form-note{margin-top:16px;font-size:14px;font-weight:600;min-height:1.2em}
.form-note.ok{color:var(--blue-d)}
.form-note.err{color:#c0473f}

/* ===== footer ===== */
footer{background:var(--ink);color:#9aa2b8;padding:80px 0 40px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.08)}
@media(max-width:780px){.foot-top{grid-template-columns:1fr 1fr;gap:36px}}
.foot-brand .brand .jp{color:#fff}.foot-brand .brand .en{color:var(--blue-l)}
.foot-brand p{margin-top:22px;font-size:13.5px;line-height:1.9;max-width:32ch}
.foot-col h5{color:#fff;font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:20px;font-weight:600;font-family:"Manrope"}
.foot-col ul{list-style:none}.foot-col li{margin-bottom:13px}
.foot-col a{color:#9aa2b8;text-decoration:none;font-size:14px;transition:.3s}
.foot-col a:hover{color:var(--blue-l)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;padding-top:30px;font-size:12.5px}
.foot-bottom a{color:#9aa2b8;text-decoration:none;transition:.3s}
.foot-bottom a:hover{color:var(--blue-l)}