:root{--bg:#fff;--surface:#f5f7f9;--text:#202124;--muted:#73777f;--line:#e7e9ed;--accent:#2bb7ff;--accent-soft:#eaf8ff;--card:#fff;--shadow:0 12px 34px rgba(31,41,55,.07)}
.dark{--bg:#111315;--surface:#1b1e22;--text:#f0f1f2;--muted:#9da2aa;--line:#2b3036;--accent-soft:#102c3a;--card:#171a1e;--shadow:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;line-height:1.8}.site-header{height:64px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100% - 980px)/2));background:color-mix(in srgb,var(--bg) 92%,transparent);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:9px;color:var(--text);font-weight:700;text-decoration:none}.brand img{border-radius:7px}.theme-switch{border:0;background:none;font-size:20px;cursor:pointer}.container{width:min(920px,calc(100% - 36px));margin:0 auto;padding:26px 0 80px}.breadcrumb{display:flex;gap:9px;align-items:center;overflow:hidden;white-space:nowrap;color:var(--muted);font-size:13px}.breadcrumb a{color:inherit;text-decoration:none}.breadcrumb span:last-child{overflow:hidden;text-overflow:ellipsis}.hero{padding:76px 0 48px;max-width:690px}.eyebrow{margin:0 0 14px;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.18em}.hero h1{font-size:clamp(35px,7vw,58px);line-height:1.15;letter-spacing:-.04em;margin:0 0 24px}.hero>p:last-child{font-size:17px;color:var(--muted);margin:0;max-width:620px}.finder{padding:22px;border:1px solid var(--line);background:var(--surface);border-radius:20px}.search-box{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:13px;padding:0 15px}.search-box span{font-size:24px;color:var(--muted)}.search-box input{width:100%;height:52px;border:0;outline:0;color:var(--text);background:transparent;font:inherit;font-size:16px}.categories{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}.category{border:1px solid var(--line);background:var(--card);color:var(--text);padding:7px 13px;border-radius:999px;cursor:pointer;font:inherit;font-size:13px}.category.is-active{background:var(--text);color:var(--bg);border-color:var(--text)}.result-count{font-size:13px;color:var(--muted);margin:30px 2px 10px}.question-list{display:grid;gap:10px}.question-card{position:relative;display:grid;grid-template-columns:1fr auto;gap:4px 20px;align-items:center;padding:21px 54px 21px 22px;color:var(--text);text-decoration:none;border:1px solid var(--line);border-radius:16px;background:var(--card);transition:.18s ease}.question-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow)}.question-card .question-category{grid-column:1;font-size:12px}.question-card strong{grid-column:1;font-size:17px;line-height:1.55}.question-category{display:inline-flex;color:#087aad;background:var(--accent-soft);border-radius:999px;padding:3px 9px;font-size:12px;font-weight:700;width:max-content}.arrow{position:absolute;right:22px;font-size:20px;color:var(--accent)}.empty{padding:48px 20px;text-align:center;color:var(--muted);background:var(--surface);border-radius:16px}.article-container{max-width:780px}.answer-article{padding-top:64px}.answer-article h1{font-size:clamp(32px,6vw,48px);line-height:1.3;letter-spacing:-.035em;margin:18px 0 34px}.short-answer{border-left:4px solid var(--accent);padding:22px 25px;background:var(--accent-soft);border-radius:0 15px 15px 0;margin-bottom:34px}.answer-label{display:block;font-size:12px;font-weight:700;color:#087aad;margin-bottom:6px}.short-answer p{font-size:20px;font-weight:700;line-height:1.65;margin:0}.answer-details{font-size:16px}.answer-details p{margin:0 0 1.3em}.next-links{display:grid;gap:10px;margin-top:40px}.next-link{display:grid;gap:2px;padding:17px 20px;border:1px solid var(--line);border-radius:14px;color:var(--text);text-decoration:none;background:var(--card)}.next-link span{font-size:12px;color:var(--muted)}.next-link b{font-size:16px}.next-link.tool{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));background:var(--accent-soft)}.related{border-top:1px solid var(--line);margin-top:64px;padding-top:38px}.related h2{font-size:22px;margin:0 0 18px}.compact .question-card{padding-top:16px;padding-bottom:16px}.compact .question-card strong{font-size:15px}.back-link{display:inline-block;margin-top:36px;color:var(--muted);text-decoration:none;font-size:14px}.site-footer{border-top:1px solid var(--line);padding:30px max(20px,calc((100% - 920px)/2));display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}.site-footer a{color:var(--text);text-decoration:none;font-weight:700}[hidden]{display:none!important}
@media(max-width:620px){.site-header{height:58px;padding:0 16px}.container{width:min(100% - 28px,920px);padding-top:18px}.hero{padding:50px 2px 34px}.hero h1{font-size:38px}.hero>p:last-child{font-size:15px}.finder{padding:14px;border-radius:16px}.categories{flex-wrap:nowrap;overflow-x:auto;padding-bottom:3px}.category{flex:0 0 auto}.question-card{padding:18px 46px 18px 17px}.question-card strong{font-size:15px}.arrow{right:17px}.answer-article{padding-top:45px}.answer-article h1{font-size:32px}.short-answer{padding:19px 18px}.short-answer p{font-size:18px}.site-footer{display:block;padding:26px 18px}.site-footer span{display:block;margin-top:5px}}