*,*::before,*::after{box-sizing:border-box}
  :root{
    --bg:#FFFFFF; --paper:#FAFAFA; --ink-band:#0A0B0E; --ink-band2:#0E1014;
    --tx:#0E0F12; --tx-m:#5A626E; --tx-dim:#8A929E;
    --tx-onD:#ECEDF0; --tx-onDm:#9AA2AE;
    --line:rgba(14,15,18,.11); --line-2:rgba(14,15,18,.07); --line-d:rgba(255,255,255,.10);
    --red:#C8102E; --red-onD:#FF2A43;
    --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,monospace;
    --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Inter","Noto Sans JP",system-ui,sans-serif;
    --wrap:1200px;
  }
  html{scroll-behavior:smooth}
  body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--tx);-webkit-font-smoothing:antialiased;line-height:1.6;letter-spacing:.004em}
  .m-root{overflow-x:hidden}
  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
  .eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--tx-dim);display:inline-flex;align-items:center;gap:10px}
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--red)}
  h1,h2,h3{margin:0;font-weight:830;letter-spacing:-.03em;line-height:1.05;text-wrap:balance;color:var(--tx)}
  .lead{font-size:clamp(15px,1.4vw,18px);color:var(--tx-m);max-width:60ch;line-height:1.72}
  a{color:inherit;text-decoration:none}
  .red{color:var(--red)}
  .btn{display:inline-flex;align-items:center;gap:10px;font-weight:650;font-size:14px;padding:14px 22px;border-radius:10px;border:1px solid transparent;transition:.22s ease;cursor:pointer}
  .btn .ar{transition:transform .22s ease}.btn:hover .ar{transform:translateX(4px)}
  .btn-primary{background:var(--tx);color:#fff}
  .btn-primary:hover{background:var(--red)}
  .btn-ghost{border-color:var(--line);color:var(--tx)}
  .btn-ghost:hover{border-color:var(--tx);background:rgba(14,15,18,.03)}

  /* Nav */
  /* fixed固定: 祖先の.m-root{overflow-x:hidden}がstickyを無効化するためfixedを使う。高さ分は.m-rootのpaddingで補償 */
  .nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(14px);background:rgba(255,255,255,.78);border-bottom:1px solid var(--line-2)}
  .m-root{padding-top:68px}
  [id]{scroll-margin-top:84px}
  .nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
  .brand-logo{height:56px;display:block}
  .navlinks{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--tx-m)}
  .navlinks a:hover{color:var(--tx)}
  .nav-item{position:relative;display:flex;align-items:center}
  .has-sub{display:inline-flex;align-items:center;gap:5px}
  .has-sub::after{content:"▾";font-size:10px;color:var(--tx-dim)}
  .dropdown{position:absolute;top:calc(100% + 16px);left:-14px;min-width:236px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 44px -18px rgba(14,15,18,.28);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s ease;z-index:60}
  .nav-item:hover .dropdown{opacity:1;visibility:visible;transform:none}
  .dropdown a{display:block;padding:10px 12px;border-radius:8px;color:var(--tx);font-size:13.5px}
  .dropdown a:hover{background:var(--paper);color:var(--red)}
  .nav-cta{display:flex;align-items:center;gap:18px}
  .lang{font-family:var(--mono);font-size:12px;color:var(--tx-dim);letter-spacing:.1em}
  @media(max-width:899px){.navlinks{display:none}}

  /* Hero (light) */
  .hero{position:relative;padding:126px 0 122px;overflow:hidden}
  .hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
  /* 背景の色面はCanvas内で描画（日本グロー＋左下コーナーの三日月ブルーム） */
  .heroGlobe{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity 1.4s ease .1s}
  .heroGlobe.on{opacity:1}
  /* サブページヒーロー（Solutions / Wallet Engine）にも同じ背景を敷く */
  .hero-lite{position:relative;overflow:hidden}
  .hero-lite .wrap{position:relative;z-index:1}
  .hero-scrim{position:absolute;inset:0;background:radial-gradient(ellipse 42% 52% at 25% 38%,rgba(255,255,255,.85) 20%,rgba(255,255,255,.42) 50%,rgba(255,255,255,0) 70%)}
  @media(max-width:720px){.hero-scrim{background:linear-gradient(180deg,rgba(255,255,255,.9) 34%,rgba(255,255,255,.45) 62%,rgba(255,255,255,0) 92%)}}
  .hero-in{position:relative;z-index:1;max-width:920px}
  .hero-in>.eyebrow,.hero-in>h1,.hero-in>.lead,.hero-in>.hero-cta{animation:heroUp .9s cubic-bezier(.16,.84,.28,1) both}
  .hero-in>h1{animation-delay:.1s}.hero-in>.lead{animation-delay:.22s}.hero-in>.hero-cta{animation-delay:.34s}
  @keyframes heroUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
  @media(prefers-reduced-motion:reduce){.hero-in>.eyebrow,.hero-in>h1,.hero-in>.lead,.hero-in>.hero-cta{animation:none}.heroGlobe{transition:none}}
  .hero h1{font-size:clamp(37px,6.2vw,66px);font-weight:860;margin:24px 0 0}
  .hero h1 .l{white-space:nowrap} /* 文中改行の禁止: 66px上限×13文字≒832pxが.hero-in(920px)内に収まる前提とセット */
  .hero .lead{margin:26px 0 0;font-size:clamp(15px,1.45vw,19px)}
  .hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
  .hero .btn-ghost,.hero-lite .btn-ghost{background:rgba(255,255,255,.74);backdrop-filter:blur(3px)}
  .metrics{display:flex;gap:46px;margin-top:60px;flex-wrap:wrap;border-top:1px solid var(--line-2);padding-top:28px}
  .metric .k{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--tx-dim);text-transform:uppercase}
  .metric .v{font-size:26px;font-weight:800;letter-spacing:-.02em;margin-top:6px;color:var(--tx)}
  .metric .v .u{color:var(--red)}

  /* sections */
  .sec{padding:118px 0;position:relative}
  .sec.paper{background:var(--paper)}
  .sec-head{max-width:820px;margin-bottom:56px}
  .sec-head h1,.sec-head h2{font-size:clamp(28px,3.6vw,50px);margin-top:20px}
  .sec-head .lead{margin-top:22px}

  /* cards (light) */
  .grid{display:grid;gap:18px}
  .g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}
  @media(max-width:899px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:599px){.g4{grid-template-columns:1fr}.g3{grid-template-columns:1fr}}
  .card{border:1px solid var(--line);border-radius:14px;padding:28px;background:#fff;box-shadow:0 1px 2px rgba(14,15,18,.03);transition:.24s ease}
  .card:hover{transform:translateY(-4px);box-shadow:0 22px 50px -22px rgba(14,15,18,.20);border-color:rgba(14,15,18,.22)}
  .card .num{font-family:var(--mono);font-size:12px;color:var(--red);letter-spacing:.12em}
  .card h3{font-size:18px;margin:14px 0 10px;letter-spacing:-.01em;color:var(--tx)}
  .card p{font-size:14px;color:var(--tx-m);margin:0;line-height:1.65}
  .chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
  .chip{font-family:var(--mono);font-size:11px;letter-spacing:.05em;padding:5px 10px;border-radius:999px;border:1px solid var(--line);color:var(--tx-dim)}

  /* dark band (accent only: N Suite / CTA / footer) */
  .dark{background:var(--ink-band);color:var(--tx-onD)}
  .dark h1,.dark h2,.dark h3{color:#fff}
  .dark .lead{color:var(--tx-onDm)}
  .dark .eyebrow{color:var(--tx-onDm)}
  .dark .card{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));border-color:var(--line-d);box-shadow:none}
  .dark .card:hover{border-color:rgba(255,255,255,.24);box-shadow:0 22px 50px -22px rgba(0,0,0,.7)}
  .dark .card h3{color:#fff}.dark .card p{color:var(--tx-onDm)}.dark .card .num{color:var(--red-onD)}
  .dark .btn-primary{background:#fff;color:var(--tx)}.dark .btn-primary:hover{background:var(--red-onD);color:#fff}
  .dark .btn-ghost{border-color:rgba(255,255,255,.2);color:#fff}.dark .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.05)}
  .band{background:radial-gradient(1100px 460px at 82% -10%,rgba(255,42,67,.13),transparent 58%),var(--ink-band2)}
  .band .row{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
  @media(max-width:899px){.band .row{grid-template-columns:1fr}}
  .ext{font-family:var(--mono);font-size:12px;color:var(--red-onD)}

  /* CTA */
  .cta{padding:120px 0;text-align:center;background:radial-gradient(900px 420px at 50% 118%,rgba(255,42,67,.16),transparent 58%),var(--ink-band)}
  .cta h2{font-size:clamp(30px,4.6vw,58px)}
  .cta .lead{margin:22px auto 0;color:var(--tx-onDm)}
  .cta .hero-cta{justify-content:center}
  .cta .eyebrow{justify-content:center}

  /* footer */
  footer{background:var(--ink-band);color:var(--tx-onDm);padding:56px 0 40px;font-size:13px}
  .foot-logo{height:56px;margin-bottom:14px}
  .foot-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:28px}
  @media(max-width:899px){.foot-grid{grid-template-columns:1fr 1fr}}
  .foot-grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--tx-onD);margin:0 0 14px;text-transform:uppercase;font-weight:600}
  .foot-grid a{display:block;color:var(--tx-onDm);padding:5px 0}.foot-grid a:hover{color:#fff}
  .foot-bot{display:flex;justify-content:space-between;margin-top:40px;padding-top:22px;border-top:1px solid var(--line-d);font-size:12px;flex-wrap:wrap;gap:10px}

  .rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
  .rv.in{opacity:1;transform:none}
  @media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

  /* v2.0 additions (3.2 Solutions下層) */
  .more{display:inline-flex;align-items:center;gap:7px;margin-top:18px;color:var(--red);font-weight:600;font-size:13.5px}
  .more .ar{transition:.2s ease}
  a.card:hover .more .ar{transform:translateX(4px)}
  .rows{margin-top:8px}
  .row-item{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline}
  .row-item:first-child{border-top:1px solid var(--line)}
  .row-item .rnum{font-family:var(--mono);font-size:13px;color:var(--red);letter-spacing:.06em}
  .row-item h3{font-size:19px;margin:0 0 8px}
  .row-item p{color:var(--tx-m);font-size:15px;line-height:1.85;margin:0;max-width:760px}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
  .step{border-top:2px solid var(--tx);padding-top:16px}
  .step .s-num{font-family:var(--mono);font-size:12px;color:var(--red);letter-spacing:.08em}
  .step h4{font-size:16px;margin:8px 0 6px}
  .step p{color:var(--tx-m);font-size:13.5px;line-height:1.7;margin:0}
  @media(max-width:899px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:599px){.steps{grid-template-columns:1fr}}
  .faq{border:1px solid var(--line);border-radius:12px;background:#fff;margin-top:10px;overflow:hidden}
  .faq summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:600;font-size:15px;display:flex;justify-content:space-between;align-items:center;gap:16px}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";color:var(--tx-dim);font-size:18px;transition:.2s}
  .faq[open] summary::after{content:"\2212"}
  .faq .fa{padding:0 22px 20px;margin:0;color:var(--tx-m);font-size:14.5px;line-height:1.85}
  .sub-hero .crumb{font-family:var(--mono);font-size:12px;color:var(--tx-dim);margin-bottom:18px;display:inline-flex;gap:8px;flex-wrap:wrap}
  .sub-hero .crumb a{color:var(--tx-dim)}.sub-hero .crumb a:hover{color:var(--red)}
  .sub-hero h1,.sub-hero h2{font-size:clamp(34px,5vw,64px)}

  /* v2.2 additions (3.8 News移植) */
  .news-tabs{display:flex;gap:4px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:8px}
  .news-tabs button{background:transparent;border:0;padding:12px 16px 14px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--tx-dim);cursor:pointer;position:relative}
  .news-tabs button:hover{color:var(--tx)}
  .news-tabs button.on{color:var(--tx)}
  .news-tabs button.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--red)}
  /* カードは現行 doublejump.tokyo/news の実装値を踏襲
     (白カード r10 / 影 0 2px 20px 10% / カバー h180 r10 / バッジ #1e5a9f ピル / 日付 #aaa) */
  .news-items{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  @media(max-width:1000px){.news-items{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:640px){.news-items{grid-template-columns:1fr}}
  .news-item{display:flex;flex-direction:column;align-items:flex-start;background:#FFFFFF;border-radius:10px;box-shadow:0 2px 20px rgba(0,0,0,.1);padding:24px;color:inherit;text-decoration:none;transition:transform .14s ease,box-shadow .14s ease}
  .news-item:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.14)}
  .ni-cover{width:100%;height:180px;border-radius:10px;overflow:hidden;background:#F2F3F5;margin:0 0 24px}
  .ni-cover img{width:100%;height:100%;object-fit:cover;display:block}
  .ni-cat{display:inline-block;background:#1e5a9f;color:#fff;border-radius:80px;padding:6px 12px;font-size:12px;font-weight:700;line-height:1;letter-spacing:.05em;margin:0 0 12px}
  .ni-title{font-size:16px;font-weight:700;color:#000;line-height:1.6;letter-spacing:.05em;margin:0 0 24px}
  .ni-date{font-family:var(--mono);font-size:14px;font-weight:500;color:#aaaaaa;letter-spacing:.05em;line-height:1.4;margin-top:auto}
  .news-foot{display:flex;justify-content:center;align-items:center;margin-top:28px;font-family:var(--mono);font-size:12px;color:var(--tx-dim)}
  .news-empty{padding:48px 0;text-align:center;color:var(--tx-dim);border-bottom:1px solid var(--line)}
  .np-wrap{max-width:1080px}
  .np-cover{margin:0 auto 32px;border-radius:10px;overflow:hidden;background:#F2F3F5;max-width:600px}
  .np-cover img{width:100%;display:block}
  .np-meta{display:flex;gap:16px;align-items:center;margin-bottom:14px}
  .np-meta .ni-cat,.np-meta .ni-date{margin:0}  /* カード用マージンを打ち消して縦中央に揃える */
  .np-title{font-size:clamp(24px,3.2vw,34px);line-height:1.45;letter-spacing:-.015em;font-weight:800;margin:0 0 30px;text-wrap:pretty;word-break:auto-phrase;line-break:strict}
  .np-body{font-size:15px;line-height:2.0;color:var(--tx-m)}
  .np-body p{margin:0 0 1.4em}
  .np-body strong{color:var(--tx)}
  .np-body a{color:#1F8EFA;text-decoration:underline;text-underline-offset:3px;word-break:break-all}
  .np-body a:hover{color:var(--red)}
  .np-body h1,.np-body h2,.np-body h3{color:var(--tx);margin:2em 0 .8em;line-height:1.6;font-weight:700}
  .np-body h1{font-size:21px}.np-body h1:first-child{margin-top:0}
  .np-body h2{font-size:20px}.np-body h3{font-size:17px}
  .np-body ul,.np-body ol{margin:0 0 1.4em;padding-left:1.6em}
  .np-body blockquote{margin:0 0 1.4em;padding:4px 0 4px 18px;border-left:3px solid var(--line);color:var(--tx-dim)}
  .np-foot{margin-top:52px;padding-top:28px;border-top:1px solid var(--line)}
  @media(max-width:760px){.news-item{grid-template-columns:1fr 24px;gap:6px 14px}.ni-date,.ni-cat{display:inline-block}}

  /* ===== レスポンシブ正規化（4.8: 599px / 899px 段） ===== */
  /* モバイルナビ（バーガー + ドロワー） */
  .burger{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;padding:0;flex:none}
  .burger .bi{position:relative;display:block;width:18px;height:2px;background:var(--tx);transition:background .2s ease}
  .burger .bi::before,.burger .bi::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx);transition:transform .22s ease,top .22s ease}
  .burger .bi::before{top:-6px}.burger .bi::after{top:6px}
  .burger[aria-expanded="true"] .bi{background:transparent}
  .burger[aria-expanded="true"] .bi::before{top:0;transform:rotate(45deg)}
  .burger[aria-expanded="true"] .bi::after{top:0;transform:rotate(-45deg)}
  .mnav{position:fixed;top:68px;left:0;right:0;bottom:0;z-index:49;background:#fff;overflow-y:auto;display:none;flex-direction:column;padding:14px 28px 30px}
  .mnav.open{display:flex}
  .mnav>a{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;color:var(--tx);border-bottom:1px solid var(--line-2)}
  .mnav>a.sub{padding-left:18px;font-size:14.5px;font-weight:500;color:var(--tx-m)}
  .mnav .mnav-group{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--tx-dim);padding:18px 0 6px}
  .mnav .mnav-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:16px}
  .mnav .mnav-foot .btn{width:100%;justify-content:center}
  body.mnav-open{overflow:hidden}
  @media(min-width:900px){.mnav{display:none!important}}
  @media(max-width:899px){
    .burger{display:flex}
    .sec{padding:84px 0}
    .hero{padding:96px 0 84px}
    .cta{padding:88px 0}
    .sec-head{margin-bottom:44px}
  }
  @media(max-width:599px){
    .wrap{padding:0 20px}
    .mnav{padding:10px 20px 26px}
    .nav-in{height:58px}
    .m-root{padding-top:58px}
    [id]{scroll-margin-top:72px}
    .brand-logo{height:44px}
    .nav-cta{gap:12px}
    .nav-cta .btn{display:none} /* ヘッダーCTAはドロワー最下部へ（4.8 §4） */
    .mnav{top:58px}
    .sec{padding:64px 0}
    .hero{padding:64px 0 60px}
    .cta{padding:72px 0}
    .sec-head{margin-bottom:36px}
    .hero h1{font-size:clamp(32px,8.6vw,40px);word-break:auto-phrase;line-break:strict}
    .hero h1 .l{white-space:normal} /* モバイルはnowrapだとはみ出すため文節折返しに戻す */
    .sec-head h1,.sec-head h2,.cta h2{word-break:auto-phrase;line-break:strict}
    .sub-hero h1,.sub-hero h2{font-size:clamp(28px,7.4vw,36px)}
    .hero-cta .btn{width:100%;justify-content:center}
    .card{padding:22px}
    .row-item{grid-template-columns:44px 1fr;gap:14px}
    .band .row{gap:32px}
    .mod-grid{grid-template-columns:1fr} /* minmax(320px)の375px幅はみ出し防止 */
    .ni-cover{height:160px}
    .np-meta{flex-wrap:wrap;gap:10px}
    .foot-grid{grid-template-columns:1fr;gap:6px}
    .foot-grid h4{margin:20px 0 6px}
    .foot-grid a{padding:12px 0} /* タップ領域44px確保 */
    .foot-logo{height:44px}
    footer{padding:44px 0 32px}
  }
:focus-visible{outline:2px solid #C8102E;outline-offset:2px}