:root{--brand: #1fb6c8;--brand-ink: #0f8b9b;--brand-soft: #e6f7fa;--accent: #dd3333;--link: #1f6fe0;--gold: #f5a623;--ink: #1a2330;--ink-2: #46505f;--muted: #7b8694;--bg: #ffffff;--bg-soft: #f5f7f9;--bg-band: #eef1f4;--border: #e6eaef;--card-shadow: 0 1px 2px rgba(16,32,48,.06), 0 6px 20px rgba(16,32,48,.06);--radius: 14px;--radius-sm: 10px;--maxw: 1080px;--readw: 720px;--font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "YuGothic", "Segoe UI", Meiryo, system-ui, sans-serif;color-scheme:light}:root[data-theme=dark]{color-scheme:dark;--brand: #33c6d7;--brand-ink: #6fdcea;--brand-soft: #113c43;--accent: #f2635e;--link: #6fa8ff;--gold: #ffca5f;--ink: #e7ebf0;--ink-2: #b9c2cd;--muted: #8b96a3;--bg: #14171c;--bg-soft: #1b1f26;--bg-band: #1b1f26;--border: #2a303a;--card-shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.28)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:var(--maxw);margin:0 auto;padding:0 1.1rem}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--border)}.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:60px}.brand{display:flex;align-items:center}.brand img{height:34px;width:auto;display:block}.nav{display:flex;gap:1.1rem;align-items:center;font-size:.9rem;font-weight:600}.nav a{color:var(--ink-2)}.nav a:hover{color:var(--brand-ink);text-decoration:none}.nav .nav-app{background:var(--brand);color:#fff;padding:.42rem .95rem;border-radius:999px}.nav .nav-app:hover{background:var(--brand-ink);color:#fff}@media(max-width:640px){.nav a:not(.nav-app){display:none}.brand img{height:30px}}.app-band{background:var(--bg-band);border-bottom:1px solid var(--border)}.app-band .inner{display:flex;align-items:center;justify-content:center;gap:1rem;padding:.6rem 1rem;flex-wrap:wrap}.app-band .copy{font-weight:700;font-size:.92rem;color:var(--ink)}.app-band .stars{color:var(--gold);font-size:.95rem;letter-spacing:.05em}.app-band .stars small{color:var(--muted);margin-left:.3rem;font-weight:600}.store-badges{display:flex;gap:.5rem;align-items:center}.store-badges a{display:block;line-height:0}.store-badges a:hover{opacity:.85}.store-badges img{height:40px;width:auto;display:block}@media(max-width:640px){.store-badges img{height:34px}.app-band .stars{display:none}}.article-wrap{max-width:var(--readw);margin:0 auto;padding:1.2rem 1.1rem 3rem}.breadcrumb{font-size:.8rem;color:var(--muted);margin:1rem 0 .8rem;display:flex;flex-wrap:wrap;gap:.3rem}.breadcrumb a{color:var(--muted)}.cat-pill{display:inline-block;background:var(--accent);color:#fff;font-size:.74rem;font-weight:700;padding:.22rem .7rem;border-radius:999px}h1.title{font-size:clamp(1.5rem,4.5vw,2.05rem);line-height:1.36;font-weight:800;letter-spacing:.01em;margin:.7rem 0 .5rem}.byline{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;color:var(--muted);font-size:.82rem;margin-bottom:1rem}.byline .who{display:flex;align-items:center;gap:.4rem;color:var(--ink-2);font-weight:600;text-decoration:none}.byline .who:hover .who-name{text-decoration:underline}.byline .avatar{width:22px;height:22px;border-radius:50%;background:var(--brand);display:inline-grid;place-items:center;color:#fff;font-size:.62rem;font-weight:700;object-fit:cover;overflow:hidden}.hero{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);background:linear-gradient(135deg,var(--brand-soft),var(--bg-soft));box-shadow:var(--card-shadow)}.content{font-size:1.02rem}.content>p{margin:1rem 0}.content h2{font-size:1.38rem;font-weight:800;line-height:1.55;margin:2.8rem 0 1.1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border);position:relative}.content h2:after{content:"";position:absolute;left:0;bottom:-1px;width:3.2em;height:3px;background:var(--brand);border-radius:2px}.content h3{font-size:1.14rem;font-weight:700;line-height:1.6;margin:2rem 0 .6rem}.content img{display:block;margin:1.2rem auto;border-radius:var(--radius);box-shadow:var(--card-shadow)}.content figure{margin:1.2rem 0;text-align:center}.content figcaption{font-size:.8rem;color:var(--muted);margin-top:.35rem}.content a{font-weight:600;text-decoration:underline;text-underline-offset:2px}.content ul,.content ol{padding-left:1.3rem}.content li{margin:.35rem 0}.content blockquote{margin:1.2rem 0;padding:.6rem 1rem;border-left:4px solid var(--brand);background:var(--bg-soft);border-radius:0 8px 8px 0;color:var(--ink-2)}.content .table-wrap{margin:1.2rem 0;overflow-x:auto;border-radius:10px;box-shadow:var(--card-shadow)}.content table{border-collapse:collapse;width:100%;font-size:.92rem}.content .kv-table td:first-child{white-space:nowrap;width:1%;font-weight:600}.content table thead th{background:var(--brand);color:#fff}.content th,.content td{border:1px solid var(--border);padding:.55rem .7rem;text-align:left;vertical-align:top}.content tbody tr:nth-child(2n){background:var(--bg-soft)}.toc{border:1px solid var(--border);background:var(--bg-soft);border-radius:var(--radius);padding:1rem 1.1rem;margin:1.4rem 0}.toc>.toc-h{font-weight:800;font-size:.95rem;display:flex;align-items:center;gap:.4rem;margin-bottom:.5rem}.toc ol{margin:0;padding-left:1.1rem;font-size:.9rem}.toc li{margin:.28rem 0}.toc a{color:var(--ink-2)}.toc .lv3{list-style:circle;color:var(--muted)}.share{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin:1.2rem 0}.share .lbl{font-size:.8rem;color:var(--muted);font-weight:600}.share a{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .75rem;border-radius:999px;font-size:.8rem;font-weight:700;color:#fff}.share a:hover{text-decoration:none;opacity:.9}.share .x{background:#000}.share .line{background:#06c755}.share .fb{background:#1877f2}.share .hatena{background:#00a4de}.share svg{width:15px;height:15px;fill:currentColor}.cta{border-radius:var(--radius);padding:1rem 1.15rem;margin:1.6rem 0;font-size:.96rem;display:flex;gap:.7rem;align-items:flex-start;box-shadow:var(--card-shadow)}.cta .ico{font-size:1.3rem;line-height:1.2;flex:0 0 auto}.cta .cta-btn{display:inline-block;margin-top:.5rem;background:var(--brand);color:#fff;font-weight:700;padding:.5rem 1rem;border-radius:999px;font-size:.88rem}.cta .cta-btn:hover{text-decoration:none;background:var(--brand-ink)}.cta-intro{background:var(--brand-soft)}.cta-body{background:color-mix(in srgb,var(--brand-soft) 60%,var(--bg));border:1px solid var(--border)}.cta-footer{background:linear-gradient(135deg,var(--brand),var(--brand-ink));color:#fff}.cta-footer .cta-btn{background:#fff;color:var(--brand-ink)}.cta-footer a.cta-btn:hover{background:#f0f0f0}.author-box{display:flex;gap:1rem;align-items:flex-start;border:1px solid var(--border);background:var(--bg-soft);border-radius:var(--radius);padding:1.1rem;margin:2rem 0}.author-box .av{width:52px;height:52px;border-radius:50%;background:var(--brand);display:grid;place-items:center;color:#fff;font-weight:800;flex:0 0 auto;font-size:1.3rem;object-fit:cover;overflow:hidden}.author-box .name{font-weight:800;color:var(--ink);text-decoration:none;display:inline-block}.author-box .name:hover{text-decoration:underline}.author-box .role{font-size:.8rem;color:var(--muted);margin:.1rem 0 .4rem}.author-box p{margin:0 0 .5rem;font-size:.86rem;color:var(--ink-2)}.author-box .more{font-size:.82rem;font-weight:700;color:var(--brand);text-decoration:none}.author-box .more:hover{text-decoration:underline}.section-h{font-size:1.25rem;font-weight:800;margin:2.4rem 0 1rem;display:flex;align-items:center;gap:.5rem}.section-h:before{content:"";width:5px;height:1.1em;background:var(--brand);border-radius:3px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}.card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg);box-shadow:var(--card-shadow);transition:transform .12s ease,box-shadow .12s ease}.card:hover{transform:translateY(-3px);box-shadow:0 8px 28px #10203024}.card a{color:inherit}.card a:hover{text-decoration:none}.card .thumb{aspect-ratio:16/10;object-fit:cover;width:100%;background:linear-gradient(135deg,var(--brand-soft),var(--bg-soft))}.card .body{padding:.7rem .8rem .9rem}.card .c-cat{font-size:.68rem;color:var(--accent);font-weight:700}.card .c-title{font-size:.92rem;font-weight:700;line-height:1.45;margin:.2rem 0 0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);margin-top:3rem;font-size:.85rem;color:var(--muted)}.site-footer .inner{padding:2rem 1.1rem;display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between}.site-footer .disc{max-width:460px;line-height:1.7}.site-footer a{color:var(--ink-2)}.meta-line{color:var(--muted);font-size:.82rem}.tag-row{display:flex;flex-wrap:wrap;gap:.45rem;margin:1.6rem 0 .5rem}.tag-chip{font-size:.8rem;font-weight:600;color:var(--brand-ink);background:var(--brand-soft);border:1px solid var(--border);border-radius:999px;padding:.3rem .8rem}.tag-chip:hover{text-decoration:none;background:var(--brand);color:#fff}