@import"https://fonts.googleapis.com/css2?family=Zen+Kaku+Gothic+New:wght@500;700;900&display=swap";:root{--paper: #f6f3ec;--surface: #fffefb;--surface-2: #efeadf;--line: #ddd5c6;--line-strong: #c8bda8;--ink: #1c2433;--ink-2: #3f4a5c;--ink-3: #6b7384;--teal: #0e8d8a;--teal-deep: #0a6b69;--teal-soft: #d9efee;--coral: #c4452f;--coral-soft: #f6e2dd;--amber: #b3741a;--amber-soft: #f3e7d2;--good: #2e7d4f;--good-soft: #dcefe2;--font-head: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, Meiryo, sans-serif;--font-body: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "游ゴシック", YuGothic, "Noto Sans JP", Meiryo, sans-serif;--font-num: "SFMono-Regular", "Roboto Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;--radius: 10px;--radius-sm: 6px;--shadow-sm: 0 1px 2px rgba(28, 36, 51, .06);--shadow: 0 1px 2px rgba(28, 36, 51, .06), 0 6px 20px -8px rgba(28, 36, 51, .18);--maxw: 1160px;--maxw-prose: 760px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font-body);color:var(--ink);background-color:var(--paper);background-image:linear-gradient(rgba(28,36,51,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(28,36,51,.022) 1px,transparent 1px);background-size:28px 28px;background-attachment:fixed;line-height:1.75;font-size:16px;font-feature-settings:"palt" 1;letter-spacing:.01em;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-head);line-height:1.35;letter-spacing:.005em;color:var(--ink);margin:0 0 .6em;font-weight:700}a{color:var(--teal-deep);text-decoration:none;text-underline-offset:3px}a:hover{text-decoration:underline}p{margin:0 0 1em}img{max-width:100%;height:auto}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}.prose{max-width:var(--maxw-prose)}main{display:block;min-height:50vh}.skip-link{position:absolute;left:-9999px;top:0;z-index:100}.skip-link:focus{left:8px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:var(--radius-sm)}:focus-visible{outline:2.5px solid var(--teal);outline-offset:2px}.pr-banner{background:var(--surface-2);border-bottom:1px solid var(--line);color:var(--ink-2);font-size:.78rem;letter-spacing:.02em}.pr-banner .container{display:flex;align-items:center;gap:8px;padding-block:7px}.pr-banner .pr-tag{flex:none;font-family:var(--font-head);font-weight:700;font-size:.66rem;letter-spacing:.08em;color:var(--ink);background:#fff;border:1px solid var(--line-strong);border-radius:4px;padding:1px 6px}.site-header{position:sticky;top:0;z-index:40;background:#f6f3ecdb;backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}.brand{display:inline-flex;align-items:baseline;gap:9px;font-family:var(--font-head);font-weight:900;font-size:1.18rem;color:var(--ink);letter-spacing:.01em}.brand:hover{text-decoration:none}.brand .mark{display:inline-block;width:18px;height:16px;align-self:center;background:linear-gradient(var(--teal),var(--teal)) left bottom / 4px 6px no-repeat,linear-gradient(var(--teal),var(--teal)) center bottom / 4px 11px no-repeat,linear-gradient(var(--teal-deep),var(--teal-deep)) right bottom / 4px 16px no-repeat}.brand .tld{font-weight:700;font-size:.66rem;color:var(--teal-deep);letter-spacing:.06em;transform:translateY(-1px)}.main-nav{display:flex;align-items:center;gap:clamp(12px,2vw,26px)}.main-nav a{color:var(--ink-2);font-weight:500;font-size:.92rem}.main-nav a:hover{color:var(--teal-deep)}.main-nav a[aria-current=page]{color:var(--ink);text-decoration:underline;text-decoration-color:var(--teal);text-decoration-thickness:2px}.site-footer{margin-top:72px;background:var(--ink);color:#cdd3dd;font-size:.88rem}.site-footer a{color:#e6eaf0}.site-footer .container{padding-block:40px 32px;display:grid;gap:28px;grid-template-columns:1.4fr 1fr 1fr}.site-footer .foot-brand .brand{color:#fff}.site-footer .foot-brand p{color:#9aa3b2;font-size:.82rem;max-width:34ch}.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.06em;margin-bottom:.8em}.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}.site-footer .group-sites{border-top:1px solid #2c3647}.site-footer .group-sites .container{display:block;padding-block:24px}.site-footer .group-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}.site-footer .group-col h5{color:#828b9b;font-size:.74rem;font-weight:700;letter-spacing:.06em;margin:0 0 .7em}.site-footer .group-col:first-child ul{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}.site-footer .group-sites ul{gap:8px}@media(max-width:900px){.site-footer .group-cols,.site-footer .group-col:first-child ul{grid-template-columns:1fr}}.site-footer .group-sites a{color:#9aa3b2;font-size:.78rem}.site-footer .group-sites a:hover{color:#e6eaf0}.site-footer .foot-bottom{border-top:1px solid #2c3647;color:#828b9b;font-size:.76rem}.site-footer .foot-bottom a{color:#9aa3b2}.site-footer .foot-bottom .container{display:block;padding-block:16px}.breadcrumb{font-size:.8rem;color:var(--ink-3)}.breadcrumb ol{list-style:none;margin:0;padding:18px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.breadcrumb li{display:inline-flex;align-items:center;gap:6px}.breadcrumb li+li:before{content:"/";color:var(--line-strong)}.breadcrumb a{color:var(--ink-3)}.breadcrumb a:hover{color:var(--teal-deep)}.breadcrumb [aria-current=page]{color:var(--ink-2)}.badge{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-head);font-weight:700;font-size:.72rem;line-height:1;padding:4px 8px;border-radius:999px;border:1px solid transparent;white-space:nowrap}.badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}.badge.good{color:var(--good);background:var(--good-soft);border-color:#bfe0cd}.badge.neutral{color:var(--ink-2);background:var(--surface-2);border-color:var(--line-strong)}.badge.warn{color:var(--amber);background:var(--amber-soft);border-color:#e6cfa3}.badge.bad{color:var(--coral);background:var(--coral-soft);border-color:#e6c2b9}.tag{display:inline-block;font-size:.74rem;font-weight:700;font-family:var(--font-head);color:var(--teal-deep);background:var(--teal-soft);border:1px solid #b8dedd;border-radius:4px;padding:2px 7px;white-space:nowrap}.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-head);font-weight:700;font-size:.95rem;padding:11px 20px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--teal-deep);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--teal);box-shadow:var(--shadow)}.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}.btn-ghost:hover{border-color:var(--teal);color:var(--teal-deep)}.btn-cta{background:var(--coral);color:#fff;box-shadow:var(--shadow-sm);font-size:1rem;padding:13px 24px}.btn-cta:hover{background:#a93826;box-shadow:var(--shadow)}.btn-cta:focus-visible{outline:2.5px solid var(--coral);outline-offset:3px}.cta-box{display:flex;flex-direction:column;align-items:flex-start;gap:10px;background:var(--coral-soft);border:1px solid #e6c2b9;border-radius:var(--radius);padding:18px 20px;margin:24px 0}.cta-box .cta-note{margin:0;font-size:.78rem;line-height:1.6;color:var(--ink-3)}@media(max-width:640px){.cta-box .btn-cta{width:100%;justify-content:center}}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.eyebrow{font-family:var(--font-head);font-weight:700;font-size:.74rem;letter-spacing:.14em;color:var(--teal-deep);text-transform:uppercase;margin:0 0 8px}.callout{border-radius:var(--radius);padding:14px 16px;font-size:.9rem;line-height:1.7;border:1px solid}.callout.warn{background:var(--amber-soft);border-color:#e6cfa3;color:#6e480f}.callout.bad{background:var(--coral-soft);border-color:#e6c2b9;color:#7d2417}.callout.info{background:var(--teal-soft);border-color:#b8dedd;color:var(--teal-deep)}[hidden]{display:none!important}@media(max-width:720px){.site-footer .container{grid-template-columns:1fr 1fr}.site-footer .foot-brand{grid-column:1 / -1}}@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}