:root{--fg:#000;--sub:#54595f;--muted:#8f8f8f;--line:#e5e5e5;--accent:#ea4e31;--paper:#f6f6f6;--bg:#fff;--pagew:1160px;--maxw:960px;--sans:"Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;--serif-jp:"Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;--serif-en:"Times New Roman", Times, serif}*{box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{color:var(--fg);background:var(--bg);font-family:var(--sans);letter-spacing:.04em;-webkit-font-smoothing:antialiased;margin:0;font-size:14px;line-height:1.9;overflow-x:hidden}a{color:var(--muted);text-decoration:none;transition:color .2s}a:hover{color:var(--fg)}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.5}.page{max-width:var(--pagew);background:var(--bg);margin:0 auto}.container{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}.bleed{width:100vw;margin-left:calc(50% - 50vw)}.site-header{z-index:20;background:#fff;transition:background .3s,box-shadow .3s;position:sticky;top:0}.site-header.scrolled{background:#222;box-shadow:0 0 12px #00000017}.site-header.scrolled .bar{padding-top:10px;padding-bottom:10px}.site-header.scrolled .brand{color:#fff}.site-header.scrolled .site-nav a{color:#f0f0f0}.site-header.scrolled .site-nav .divider{background:#f0f0f033}.site-header.scrolled .site-nav .tools-button{color:#f0f0f0;border-color:#f0f0f0}.site-header.scrolled .menu-toggle{color:#f0f0f0}.site-header .bar{max-width:var(--pagew);justify-content:space-between;align-items:center;gap:1rem;margin:0 auto;padding:20px 0;display:flex}.brand{font-family:var(--serif-en);color:#000;letter-spacing:normal;font-size:26px;font-weight:700}.brand:hover{color:#000}.site-nav{align-items:center;display:flex}.site-nav ul{gap:0 20px;margin:0;padding:0;list-style:none;display:flex}.site-nav a{font-family:var(--serif-en);color:#222;letter-spacing:normal;font-size:15px}.site-nav a:hover,.site-nav a.current{color:var(--accent)}.site-nav a.current{border-bottom:1px solid var(--accent);padding-bottom:2px}.site-nav .divider{background:#3a3a3a0f;width:1px;height:30px;margin:0 25px}.site-nav .tools-button{color:#222;letter-spacing:normal;text-transform:uppercase;border:1px solid #222;border-radius:3px;padding:3px 10px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:12px;font-weight:700;display:inline-block}.site-nav .tools-button:hover{color:var(--accent);border-color:var(--accent)}.menu-toggle{cursor:pointer;color:#222;background:0 0;border:0;padding:6px;display:none}.menu-toggle svg{display:block}.site-footer{color:#fff;background:#000;padding-top:90px;position:relative;overflow:hidden}.footer-shape{width:100%;line-height:0;position:absolute;top:-1px;left:0;overflow:hidden;transform:rotate(180deg)}.footer-shape svg{width:calc(300% + 1.3px);height:500px;display:block;position:relative;left:50%;transform:translate(-50%)}.footer-shape path{fill:#fff}.site-footer .inner{grid-template-columns:180px 1fr;max-width:880px;margin:0 auto;padding:0;display:grid;position:relative}.footer-main{margin:0;padding:0;list-style:none}.footer-main a,.footer-service>a{font-family:var(--serif-en);color:#fff;letter-spacing:normal;font-size:16px;font-weight:700;line-height:2.25;display:block}.footer-main a:hover,.footer-service>a:hover{color:var(--accent)}.footer-service .groups{grid-template-columns:repeat(3,auto);justify-content:start;gap:0 40px;margin-top:6px;display:grid}.footer-service ul{margin:0 0 12px;padding:0;font-size:12px;line-height:1.8;list-style:none}.footer-service .label a{color:#ccc;padding-left:0}.footer-service li a{color:#ccc;padding-left:1.2em}.footer-service li a:hover{color:#fff}.footer-contact{text-align:center;padding:40px 20px 50px;position:relative}.contact-pill{font-family:var(--serif-en);color:#fff;letter-spacing:normal;border:1px solid #fff;border-radius:999px;padding:8px 40px;font-size:30px;display:inline-block}.contact-pill:hover{color:var(--accent);border-color:var(--accent)}.to-top{color:#fff;opacity:0;pointer-events:none;z-index:30;background:#00000026;border-radius:50%;place-items:center;width:40px;height:40px;transition:opacity .3s;display:grid;position:fixed;bottom:100px;right:40px}.to-top.show{opacity:1;pointer-events:auto}.to-top:hover{color:#fff;background:#0000004d}.copyright{text-align:center;color:#777;padding-bottom:20px;font-size:11px;position:relative}main.container{padding-top:2rem;padding-bottom:3rem}.page-title{font-family:var(--serif-jp);margin:0 0 .4rem;font-size:1.8rem}.page-lead{color:var(--sub);margin:0 0 2rem}.prose h1{margin:2rem 0 .8rem;font-size:1.6rem}.prose h2{font-family:var(--serif-jp);margin:2rem 0 .7rem;font-size:1.45rem}.prose h3{margin:1.6rem 0 .6rem;font-size:1.15rem}.prose img{border-radius:4px;margin:1rem 0}.prose a{color:var(--accent)}.prose blockquote{border-left:3px solid var(--line);color:var(--sub);margin:1rem 0;padding:.2rem 1rem}.more{margin-top:1rem;font-size:.9rem;display:inline-block}@media (width<=1200px){.site-header .bar{padding:20px}}@media (width<=900px){.menu-toggle{display:block}.site-nav ul,.site-nav .divider{display:none}.site-nav{gap:12px}.site-nav.open ul{background:#fff;flex-direction:column;gap:0;padding:0 20px 10px;display:flex;position:absolute;top:100%;left:0;right:0;box-shadow:0 10px 20px #00000014}.site-nav.open ul a{color:#222;border-bottom:1px solid #eee;padding:12px 0;font-size:18px;display:block}.site-nav.open ul a.current{border-bottom-color:#eee}.site-header.scrolled .site-nav.open ul{background:#222}.site-header.scrolled .site-nav.open ul a{color:#f0f0f0;border-bottom-color:#ffffff1f}.site-header.scrolled .site-nav.open ul a.current{color:var(--accent)}.site-footer{padding-top:50px}.footer-shape svg{height:200px}.site-footer .inner{grid-template-columns:1fr;padding:0 20px}.footer-service .groups{grid-template-columns:1fr}.contact-pill{font-size:24px}}