:root{--ink:#1b2430;--ink-soft:#5b6672;--line:#e3e7ec;--surface:#f4f6f8;--accent:#1f5fa8;--accent-soft:#e8f0fa;--max:760px}*{box-sizing:border-box}html{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}body{color:var(--ink);-webkit-font-smoothing:antialiased;background:#fff;margin:0;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,Meiryo,system-ui,sans-serif;font-size:16px;line-height:1.9}a{color:var(--accent)}img{max-width:100%;height:auto}.site-header{border-bottom:1px solid var(--line)}.site-header__inner{max-width:var(--max);justify-content:space-between;align-items:baseline;gap:16px;margin:0 auto;padding:18px 16px;display:flex}.site-header__name{color:var(--ink);letter-spacing:.02em;font-size:18px;font-weight:700;text-decoration:none}.site-header__tagline{color:var(--ink-soft);font-size:12px}.site-footer{border-top:1px solid var(--line);color:var(--ink-soft);margin-top:64px;font-size:12px}.site-footer__inner{max-width:var(--max);flex-wrap:wrap;gap:8px 20px;margin:0 auto;padding:24px 16px;display:flex}.wrap{max-width:var(--max);margin:0 auto;padding:32px 16px 0}.page-title{margin:0 0 6px;font-size:26px;line-height:1.4}.page-desc{color:var(--ink-soft);margin:0 0 28px;font-size:14px}.card-list{gap:22px;margin:0;padding:0;list-style:none;display:grid}.card{border-bottom:1px solid var(--line);grid-template-columns:160px 1fr;align-items:start;gap:16px;padding-bottom:22px;display:grid}.card img{aspect-ratio:16/9;object-fit:cover;background:var(--surface);border-radius:10px;width:100%}.card__meta{color:var(--ink-soft);margin:0 0 4px;font-size:12px}.card__meta b{color:var(--accent);font-weight:600}.card__title{margin:0 0 6px;font-size:17px;line-height:1.5}.card__title a{color:var(--ink);text-decoration:none}.card__title a:hover{text-decoration:underline}.card__desc{color:var(--ink-soft);margin:0;font-size:13px;line-height:1.7}.empty{color:var(--ink-soft)}.article__meta{color:var(--ink-soft);margin:0 0 8px;font-size:13px}.article__meta b{color:var(--accent);font-weight:600}.article__title{margin:0 0 16px;font-size:28px;line-height:1.45}.article__hero{margin:0 0 24px}.article__hero img{background:var(--surface);border-radius:12px;width:100%}.lead{white-space:pre-wrap;font-size:17px;line-height:2}.toc{border-left:4px solid var(--accent);background:var(--surface);margin:28px 0;padding:18px 22px}.toc h2{margin:0 0 8px;font-size:15px}.toc ol{margin:0;padding-left:20px;font-size:14px;line-height:1.9}.section{margin-top:40px}.section h2{border-bottom:2px solid var(--line);margin:0 0 16px;padding-bottom:8px;font-size:21px;line-height:1.5}.section p{margin:0 0 16px}.points{background:var(--surface);border-radius:10px;margin:16px 0;padding:14px 18px 14px 36px}.points li{margin:4px 0}.block-heading{margin:28px 0 10px;font-size:18px}.point{border-left:4px solid var(--accent);background:var(--accent-soft);margin:24px 0;padding:20px 24px}.point-label{color:var(--accent);letter-spacing:.08em;margin:0 0 6px;font-size:12px;font-weight:700}.point p:last-child{white-space:pre-wrap;margin:0}.steps{margin:20px 0;padding:0;list-style:none}.steps li{align-items:flex-start;gap:12px;display:flex}.steps li+li{margin-top:8px}.step-number{background:var(--accent);color:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:28px;height:28px;margin-top:4px;font-size:13px;font-weight:700;display:inline-flex}.table-wrap{margin:24px 0;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:520px;font-size:14px;line-height:1.7}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:10px 12px}thead th{background:var(--surface)}tbody th{background:#fafbfc;width:22%}.figure{margin:24px 0}.figure img{border:1px solid var(--line);border-radius:12px;width:100%;display:block}.figure figcaption{color:var(--ink-soft);margin-top:6px;font-size:13px}.chat{flex-direction:column;gap:12px;margin:24px 0;display:flex}.bubble{align-items:flex-end;gap:10px;display:flex}.bubble--right{flex-direction:row-reverse}.avatar{object-fit:cover;background:var(--line);border-radius:50%;flex:none;width:44px;height:44px}.balloon{background:var(--surface);white-space:pre-wrap;border-radius:18px;max-width:min(78%,600px);padding:11px 15px;font-size:15px;line-height:1.85;display:block}.bubble--left .balloon{border-bottom-left-radius:6px}.bubble--right .balloon{background:var(--accent-soft);border-bottom-right-radius:6px}.speaker{color:var(--ink-soft);margin-bottom:2px;font-size:12px;display:block}.speaker-role{color:#8a97a3;margin-left:6px;font-size:11px}.cta{background:var(--ink);color:#fff;border-radius:14px;margin-top:48px;padding:24px}.cta p{margin:0 0 12px;font-size:15px}.cta a{color:var(--ink);background:#fff;border-radius:999px;padding:10px 18px;font-weight:700;text-decoration:none;display:inline-block}@media (max-width:640px){.card{grid-template-columns:1fr}.article__title{font-size:23px}.balloon{max-width:84%;font-size:14px}.avatar{width:36px;height:36px}}