:root{
  --bg:#FFFFFF;
  --bg-soft:#F4F5F1;
  --ink:#1B2130;
  --muted:#5D6472;
  --line:#E2E4DF;
  --accent:#2151F5;
  --accent-ink:#173BB8;
  --accent-soft:#E8EDFF;
  --r-sm:4px;
  --r:8px;
  --font-ja:"Noto Sans JP",system-ui,-apple-system,"Hiragino Sans",sans-serif;
  --font-en:"Manrope","Noto Sans JP",sans-serif;
  --container:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-ja);font-size:16px;line-height:1.9;letter-spacing:.02em;font-feature-settings:"palt"}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:var(--r-sm)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:8px}
.container{max-width:var(--container);margin:0 auto;padding:0 16px}
.sp{display:none}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header__inner{max-width:var(--container);margin:0 auto;padding:0 16px;height:72px;display:flex;align-items:center;gap:32px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__mark{width:26px;height:26px;border-radius:6px;background:linear-gradient(135deg,var(--accent) 0%,#6C8DFF 100%);position:relative;flex:none}
.brand__mark::after{content:"";position:absolute;inset:7px;border:2.5px solid #fff;border-radius:50%;border-right-color:transparent;transform:rotate(-30deg)}
.brand__text{font-family:var(--font-en);font-weight:800;font-size:17px;letter-spacing:.06em;line-height:1;display:flex;flex-direction:column;gap:2px}
.brand__sub{font-size:9px;font-weight:700;letter-spacing:.32em;color:var(--muted)}
.nav{display:flex;gap:28px;margin-left:auto}
.nav a{display:flex;flex-direction:column;font-family:var(--font-en);font-weight:700;font-size:15px;line-height:1.2;padding:6px 0;position:relative}
.nav a small{font-family:var(--font-ja);font-weight:400;font-size:10px;color:var(--muted);letter-spacing:.05em;margin-top:3px}
.nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .3s var(--ease)}
.nav a:hover::after{width:100%}
.header__cta{flex:none}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);flex-direction:column;justify-content:center;align-items:center;gap:6px;cursor:pointer}
.menu-btn span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .3s var(--ease)}
.menu-btn[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 16px 20px}
.mobile-nav a{display:flex;justify-content:space-between;align-items:center;padding:14px 4px;border-bottom:1px solid var(--line);font-family:var(--font-en);font-weight:700}
.mobile-nav a small{font-family:var(--font-ja);font-weight:400;font-size:12px;color:var(--muted)}
.mobile-nav .btn{margin-top:16px;border-bottom:0;justify-content:center}
.mobile-nav:not([hidden]){display:block}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:46px;padding:0 22px;border-radius:6px;font-weight:700;font-size:15px;letter-spacing:.04em;border:1px solid transparent;transition:transform .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease),color .3s var(--ease);white-space:nowrap}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(33,81,245,.28)}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--lg{height:56px;padding:0 30px;font-size:16px}
.btn .arrow{font-family:var(--font-en);transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}

/* typography */
.eyebrow{font-family:var(--font-en);font-weight:700;font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent)}
.section__title{font-size:36px;font-weight:700;line-height:1.35;letter-spacing:.02em}
.section__lead{margin-top:18px;color:var(--muted);font-size:16px}
.section{padding:112px 0}
.section--soft{background:var(--bg-soft)}
.section__head{max-width:640px;margin-bottom:56px}
.section__head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:32px}
.section__note{color:var(--muted);max-width:420px}

/* hero */
.hero{padding:72px 0 0;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-8%;top:-10%;width:52vw;max-width:760px;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,var(--accent-soft),rgba(232,237,255,0));z-index:0}
.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px}
.hero__title{font-family:var(--font-en);font-weight:800;font-size:clamp(64px,8.6vw,120px);line-height:.98;letter-spacing:-.03em;margin:8px 0 26px}
.hero__lead{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.5}
.hero__text{margin-top:18px;color:var(--muted)}
.hero__actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero__art img{width:100%;max-width:560px;margin:0 auto}
.stats{margin-top:72px;display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.stats li{padding:26px 28px;border-right:1px solid var(--line)}
.stats li:last-child{border-right:0}
.stats strong{display:block;font-family:var(--font-en);font-weight:800;font-size:40px;line-height:1;letter-spacing:-.02em}
.stats strong span{font-size:16px;font-weight:700;color:var(--accent);letter-spacing:.02em;margin-left:4px}
.stats small{display:block;margin-top:8px;color:var(--muted);font-size:13px}

/* services */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service{border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.service:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(27,33,48,.08)}
.service__art{background:var(--bg-soft);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:28px}
.service__art img{max-height:100%;width:auto;max-width:82%}
.service__body{padding:26px 26px 30px}
.service__num{font-family:var(--font-en);font-weight:800;font-size:22px;color:var(--accent);line-height:1}
.service__num span{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-left:8px}
.service h3{font-size:21px;font-weight:700;margin:14px 0 10px}
.service p:last-child{color:var(--muted);font-size:15px}

/* works */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.work{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 28px 32px;position:relative;overflow:hidden}
.work::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:var(--accent)}
.work__en{font-family:var(--font-en);font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.work h3{font-size:20px;margin:10px 0 6px}
.work__client{font-weight:500;color:var(--ink);display:inline-block;background:var(--accent-soft);color:var(--accent-ink);font-size:13px;padding:2px 10px;border-radius:999px;margin-bottom:12px}
.work p:last-child{color:var(--muted);font-size:15px}

/* process */
.process__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.process__art{margin-top:40px;max-width:420px}
.steps{display:flex;flex-direction:column;counter-reset:s}
.step{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:30px 0;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.step__num{font-family:var(--font-en);font-weight:800;font-size:34px;line-height:1;color:var(--accent);letter-spacing:-.02em;padding-top:2px}
.step h3{font-size:20px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}

/* company */
.company__grid,.news__grid{display:grid;grid-template-columns:320px 1fr;gap:48px}
.profile div{display:grid;grid-template-columns:140px 1fr;gap:16px;padding:20px 0;border-top:1px solid var(--line)}
.profile div:last-child{border-bottom:1px solid var(--line)}
.profile dt{font-weight:700;color:var(--muted);font-size:14px}
.profile dd{margin:0}
.profile dd small{display:block;color:var(--muted);font-size:13px}
.profile a:hover{color:var(--accent)}

/* news */
.news li{display:grid;grid-template-columns:110px auto 1fr;gap:18px;align-items:center;padding:20px 0;border-top:1px solid var(--line)}
.news li:last-child{border-bottom:1px solid var(--line)}
.news time{font-family:var(--font-en);font-weight:700;font-size:14px;color:var(--muted)}
.tag{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:2px 10px;color:var(--muted);white-space:nowrap}

/* contact */
.section--contact{background:var(--bg-soft)}
.contact__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.contact__art{margin-top:40px;max-width:420px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:40px}
.field{margin-bottom:22px}
.field label{display:block;font-weight:700;font-size:14px;margin-bottom:8px}
.req{font-size:11px;color:#fff;background:#D9342B;border-radius:3px;padding:1px 6px;margin-left:8px;vertical-align:1px;font-weight:700}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 14px;font:inherit;font-size:16px;background:#fff;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field textarea{resize:vertical;min-height:150px}
.field .error{border-color:#D9342B}
.hp{position:absolute;left:-9999px;top:-9999px;height:0;overflow:hidden}
.check{display:flex;align-items:center;gap:10px;font-size:14px;margin:6px 0 22px}
.check input{width:18px;height:18px;accent-color:var(--accent)}
.check a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.form__status{font-size:14px;min-height:1.6em;margin-bottom:12px;color:var(--muted)}
.form__status.ok{color:#137A3E;font-weight:700}
.form__status.ng{color:#D9342B;font-weight:700}
.form .btn{width:100%}
.form.sent .field,.form.sent .check,.form.sent .btn{display:none}

/* marquee */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;background:#fff}
.marquee__track{display:flex;align-items:center;gap:40px;width:max-content;animation:marquee 40s linear infinite;font-family:var(--font-en);font-weight:800;font-size:14px;letter-spacing:.3em;color:var(--ink)}
.marquee__track i{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:none}
@keyframes marquee{to{transform:translateX(-50%)}}

/* footer */
.footer{padding:56px 0 28px}
.footer__grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.footer__addr{margin-top:16px;color:var(--muted);font-size:13px}
.footer__nav{display:grid;grid-template-columns:repeat(2,auto);gap:10px 40px;font-size:14px}
.footer__nav a:hover{color:var(--accent)}
.footer__bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;font-family:var(--font-en)}

/* privacy page */
.page{padding:72px 0 112px;max-width:760px}
.page h1{font-size:32px;margin-bottom:8px}
.page .eyebrow{margin-bottom:12px}
.page h2{font-size:20px;margin:40px 0 12px;padding-left:14px;border-left:3px solid var(--accent)}
.page p,.page li{color:#333a48;font-size:15px}
.page ul{list-style:disc;padding-left:22px}
.page .updated{color:var(--muted);font-size:13px;margin-top:8px}

/* motion */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .marquee__track{animation:none}
  .btn,.service{transition:none}
}

/* responsive */
@media (max-width:1024px){
  .section{padding:88px 0}
  .services,.works{grid-template-columns:1fr 1fr}
  .process__grid,.contact__grid{grid-template-columns:1fr;gap:40px}
  .process__art,.contact__art{display:none}
  .company__grid,.news__grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:860px){
  .nav,.header__cta{display:none}
  .menu-btn{display:flex}
  .hero{padding-top:48px}
  .hero__grid{grid-template-columns:1fr;gap:28px}
  .hero__art{order:-1}
  .hero__art img{max-width:320px}
  .hero::before{width:90vw;right:-30%;top:-8%}
  .stats{grid-template-columns:1fr;margin-top:48px}
  .stats li{border-right:0;border-bottom:1px solid var(--line);display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:18px 20px}
  .stats li:last-child{border-bottom:0}
  .stats strong{font-size:30px}
  .stats small{margin:0}
}
@media (max-width:640px){
  body{font-size:15px}
  .sp{display:inline}
  .section{padding:72px 0}
  .section__title{font-size:28px}
  .section__head{margin-bottom:36px}
  .section__head--row{flex-direction:column;align-items:flex-start;gap:12px}
  .hero__title{font-size:clamp(56px,17vw,72px)}
  .hero__actions .btn{width:100%}
  .services,.works{grid-template-columns:1fr;gap:16px}
  .service__art{aspect-ratio:16/10}
  .step{grid-template-columns:52px 1fr;gap:12px;padding:24px 0}
  .step__num{font-size:26px}
  .profile div{grid-template-columns:1fr;gap:4px;padding:16px 0}
  .news li{grid-template-columns:auto auto;gap:8px 14px}
  .news li>span:last-child{grid-column:1/-1}
  .form{padding:24px 18px}
  .footer__nav{grid-template-columns:1fr}
  .marquee__track{font-size:12px}
}