:root{--bg: #ffffff;--soft: #f5f8ff;--ink: #0b1a3a;--mut: #52617e;--line: #e8edf8;--card-line: #e5ebf7;--accent: #1d4ed8;--accent-d: #1e40af;--accent-soft: #eaf0ff;--accent-2: #22d3ee;--green: #10a37f;--foot-bg: #0b1a3a;--foot-ink: #aebed9;--maxw: 1120px;--radius: 16px;--shadow: 0 8px 30px rgba(11, 26, 58, .08);--font-jp: "Noto Sans JP", sans-serif;--font-en: "Manrope", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-jp);color:var(--ink);background:var(--bg);line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}.eyebrow{font-family:var(--font-en);font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-size:.8rem;margin:0 0 8px}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:.95rem;transition:transform .15s ease,box-shadow .15s ease}.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px #1d4ed847}.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px #1d4ed857}.btn--ghost{border:1.5px solid var(--card-line);color:var(--ink);background:#fff}.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}.badge{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.72rem;font-weight:700;color:#fff;letter-spacing:.02em}.site-header{position:sticky;top:0;z-index:50;background:#ffffffe0;backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:66px}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand__mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--green));display:grid;place-items:center;color:#fff}.brand__name{font-size:1.02rem;letter-spacing:-.01em}.brand__name small{display:block;font-size:.62rem;color:var(--mut);font-weight:600;letter-spacing:.04em}.site-nav,.site-nav__links{display:flex;align-items:center;gap:22px}.site-nav a{font-size:.9rem;font-weight:600;color:var(--mut)}.site-nav a:hover{color:var(--accent)}.site-nav .btn{padding:10px 20px}@media(max-width:720px){.site-nav__links{display:none}}.hero{background:radial-gradient(120% 120% at 80% 0%,var(--accent-soft) 0%,#fff 55%);border-bottom:1px solid var(--line)}.hero__inner{padding:64px 0 56px;max-width:760px}.hero h1{font-size:clamp(1.8rem,4.5vw,2.9rem);line-height:1.35;margin:14px 0 16px;letter-spacing:-.01em}.hero h1 .hl{background:linear-gradient(transparent 62%,#10a37f47 0)}.hero p{color:var(--mut);font-size:1.02rem;margin:0 0 28px}.hero__cta{display:flex;gap:12px;flex-wrap:wrap}.section{padding:56px 0}.section__head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:16px}.section__head h2{font-size:1.5rem;margin:0}.section__head a{font-size:.88rem;font-weight:700;color:var(--accent);white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.grid{grid-template-columns:1fr}}.card{border:1px solid var(--card-line);border-radius:var(--radius);background:#fff;padding:22px;display:flex;flex-direction:column;gap:10px;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent-soft)}.card__meta{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--mut)}.card__title{font-size:1.05rem;font-weight:700;line-height:1.6;margin:0}.card__desc{font-size:.88rem;color:var(--mut);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card time{font-family:var(--font-en)}.article{padding:48px 0 64px}.article__wrap{max-width:760px;margin:0 auto}.article__head{margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--line)}.article__head h1{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.45;margin:14px 0 16px}.article__meta{display:flex;align-items:center;gap:12px;font-size:.85rem;color:var(--mut)}.prose{font-size:1.02rem}.prose h2{font-size:1.4rem;margin:2.2em 0 .8em;padding-left:14px;border-left:4px solid var(--accent)}.prose h3{font-size:1.15rem;margin:1.8em 0 .6em}.prose p{margin:1em 0}.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.4em}.prose li{margin:.4em 0}.prose blockquote{margin:1.4em 0;padding:4px 18px;border-left:4px solid var(--green);background:var(--soft);color:var(--mut);border-radius:0 8px 8px 0}.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.92rem}.prose th,.prose td{border:1px solid var(--card-line);padding:10px 12px;text-align:left}.prose th{background:var(--accent-soft)}.prose code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:.9em}.cta-band{background:linear-gradient(135deg,var(--accent),var(--accent-d));color:#fff;border-radius:var(--radius);padding:40px;text-align:center;margin:56px 0}.cta-band h2{font-size:1.5rem;margin:0 0 10px}.cta-band p{opacity:.92;margin:0 0 22px}.cta-band .btn--primary{background:#fff;color:var(--accent)}.site-footer{background:var(--foot-bg);color:var(--foot-ink);padding:44px 0 28px;margin-top:40px}.site-footer a{color:var(--foot-ink)}.site-footer a:hover{color:#fff}.site-footer__top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}.site-footer__nav{display:flex;gap:22px;flex-wrap:wrap;font-size:.88rem}.site-footer__copy{padding-top:18px;font-size:.78rem;opacity:.8}.site-footer .brand__name{color:#fff}