:root{--bg:#f5f7fa;--card:#fff;--ink:#1f2730;--muted:#5f6b78;--line:#e6eaf0;--accent:#2c7be5;--accent-dark:#1c5fc0;--accent-soft:#e9f1fd;--rose:#7fb0ef;--gold:#e0a44a;--cream:#eef2f7}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,system-ui,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:var(--accent-dark);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1040px}.narrow,.wrap{margin:0 auto;padding:0 20px}.narrow{max-width:860px}.serif{font-family:Hiragino Mincho ProN,"Noto Serif JP",serif;font-weight:700}header.site{border-bottom:1px solid var(--line);background:rgba(245,247,250,.9);position:-webkit-sticky;position:sticky;top:0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:20}header.site .bar{display:flex;align-items:center;justify-content:space-between;height:64px}header.site .logo{display:inline-flex;align-items:baseline;gap:2px;font-weight:800;font-size:21px;letter-spacing:.02em;color:var(--ink)}header.site .logo .mk{color:var(--accent)}header.site nav a{font-size:13px;color:var(--muted);margin-left:20px}.hero{position:relative;min-height:440px;display:flex;align-items:center;overflow:hidden}.hero .img{background:linear-gradient(120deg,#1c2a3f,#1c5fc0 55%,#2c7be5)}.hero .img,.hero .scrim{position:absolute;inset:0}.hero .scrim{background:linear-gradient(90deg,rgba(15,22,33,.74),rgba(15,22,33,.5) 45%,rgba(15,22,33,.15))}.hero .inner{position:relative;padding:60px 0}.hero h1{font-size:clamp(1.8rem,4.6vw,2.9rem);line-height:1.4;margin:0 0 16px;color:#fff;letter-spacing:.02em}.hero h1 small{display:block;font-size:.5em;color:#bcd6ff;letter-spacing:.14em;margin-bottom:12px;font-weight:700}.hero p.sub{color:hsla(0,0%,100%,.92);max-width:470px;margin:0 0 24px;font-size:15px}.hero p.sub strong{color:#fff}.hero .chips{display:flex;flex-wrap:wrap;gap:10px}.hero .chips a{background:hsla(0,0%,100%,.95);border:1px solid transparent;border-radius:999px;padding:9px 18px;font-size:13.5px;color:var(--ink);box-shadow:0 2px 8px rgba(15,22,33,.18)}.hero .chips a:hover{color:var(--accent-dark);text-decoration:none}.section{padding:46px 0}.section.alt{background:var(--cream)}.sec-head{text-align:center;margin-bottom:28px}.sec-head .en{display:block;font-size:12px;letter-spacing:.22em;color:var(--accent);margin-bottom:6px;font-weight:700}.sec-head h2{font-size:clamp(1.3rem,3.4vw,1.7rem);margin:0;color:var(--ink)}.sec-head p{color:var(--muted);font-size:14px;margin:8px 0 0}.feat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));grid-gap:12px;gap:12px}.feat{display:flex;align-items:center;justify-content:center;text-align:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 12px;font-size:14px;color:var(--ink);transition:.2s}.feat:hover{border-color:var(--accent);color:var(--accent-dark);transform:translateY(-2px);text-decoration:none}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:18px;gap:18px}.bcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.2s;box-shadow:0 4px 16px rgba(31,39,48,.06)}.bcard:hover{border-color:var(--accent);transform:translateY(-3px);text-decoration:none;box-shadow:0 10px 26px rgba(44,123,229,.15)}.bcard .thumb{height:96px;background:linear-gradient(135deg,var(--accent-soft),var(--rose));display:flex;align-items:center;justify-content:center}.bcard .thumb span{font-family:Hiragino Mincho ProN,serif;font-size:19px;color:var(--accent-dark);font-weight:700}.bcard .body{padding:16px 18px 18px}.bcard .tag{display:inline-block;font-size:11px;color:var(--accent-dark);background:var(--accent-soft);border-radius:999px;padding:3px 11px;margin-bottom:9px}.bcard h3{margin:0 0 6px;font-size:16px;color:var(--ink)}.bcard p{margin:0;font-size:13px;color:var(--muted);line-height:1.7}.bcard .more{margin-top:12px;font-size:13px;color:var(--accent-dark);font-weight:700}.crumbs{font-size:12px;color:var(--muted);margin:18px 0 0}article.brand{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px 28px;margin:24px 0;box-shadow:0 4px 18px rgba(31,39,48,.06)}article.brand h1{font-size:clamp(1.5rem,4.5vw,2.1rem);margin:6px 0;line-height:1.45}article.brand .meta{color:var(--muted);font-size:12.5px;margin:0 0 18px}article.brand h2{font-size:1.25rem;margin:30px 0 10px;padding-left:12px;border-left:4px solid var(--accent);color:var(--ink)}article.brand ul{padding-left:1.2em}article.brand li{margin:6px 0}.callout{background:var(--accent-soft);border-radius:14px;padding:18px 20px;margin:16px 0}.callout .lbl{font-weight:700;color:var(--accent-dark);display:block;margin-bottom:6px}.note{font-size:12.5px;color:var(--muted)}.tag{font-size:11px;color:var(--accent-dark);background:var(--accent-soft);border-radius:999px;padding:3px 11px}.cta,.tag{display:inline-block}.cta{background:var(--accent);color:#fff;font-weight:700;padding:14px 30px;border-radius:12px;margin:8px 0;box-shadow:0 6px 18px rgba(44,123,229,.28)}.cta:hover{background:var(--accent-dark);text-decoration:none}.faq-q{font-weight:700;margin:16px 0 4px}.faq-a{margin:0}.src li{font-size:12.5px}.disc{font-size:11.5px;margin-top:24px;padding-top:14px}.disc,footer.site{color:var(--muted);border-top:1px solid var(--line)}footer.site{margin-top:50px;padding:30px 0;font-size:12.5px;text-align:center;background:var(--cream)}@media (max-width:640px){.hero .scrim{background:linear-gradient(180deg,rgba(15,22,33,.45),rgba(15,22,33,.78) 70%)}.hero{min-height:420px}}