:root{--brand: #8f4a28;--brand-weak: #f8ece2;--accent: #75481c;--accent-weak: #59360f;--heading: #241f1c;--text: #2a2521;--sub: #6b615a;--muted: #948a83;--line: #e5d6c8;--melt-1: #e08a3c;--melt-2: #c25a35;--melt-3: #9c4f63;--melt-4: #6f4a8c;--serif: "Yu Mincho", "Hiragino Mincho ProN", serif;--sans: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif}*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;font-family:var(--sans);color:var(--text);line-height:1.9;background:#fffdfb}a{color:var(--brand);text-decoration:none;transition:color .2s}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:1080px;margin:0 auto;padding:0 20px}.prose{max-width:760px}h1,h2,h3{font-family:var(--serif);color:var(--heading);line-height:1.5}h1{font-size:1.9rem}h2{font-size:1.4rem;border-bottom:1px solid var(--line);padding-bottom:.4rem;margin-top:2.5rem}h3{font-size:1.15rem;margin-top:2rem}.site-header{position:fixed;top:0;left:0;right:0;z-index:30;border-bottom:1px solid var(--line);background:#fffdfbe6;backdrop-filter:blur(10px);transform:translateY(-100%);transition:transform .35s ease}.site-header[data-shown=true]{transform:translateY(0)}.site-header .inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;padding:0 20px;max-width:1160px;margin:0 auto}.logo{font-family:var(--serif);font-size:1.35rem;color:var(--heading);letter-spacing:.02em;line-height:1}.logo b{background:linear-gradient(120deg,var(--melt-2),var(--melt-4));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}.logo:hover{text-decoration:none}.global-nav{display:flex;align-items:center;gap:20px;font-size:.88rem}.global-nav a{color:var(--text)}.global-nav a:hover{color:var(--brand);text-decoration:none}.nav-toggle{display:none}@media(max-width:860px){.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}.nav-toggle span{display:block;height:2px;background:var(--heading);border-radius:2px;transition:transform .25s,opacity .25s}.site-header[data-open=true] .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}.site-header[data-open=true] .nav-toggle span:nth-child(2){opacity:0}.site-header[data-open=true] .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.global-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fffdfb;border-bottom:1px solid var(--line);box-shadow:0 12px 24px #5a30141f;max-height:0;overflow:hidden;transition:max-height .3s ease}.site-header[data-open=true] .global-nav{max-height:80vh}.global-nav a{padding:14px 22px;border-top:1px solid var(--line);font-size:.95rem}}.site-footer{border-top:1px solid var(--line);margin-top:80px;padding:40px 0 60px;font-size:.85rem;color:var(--sub)}.site-footer nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:16px}.hero{position:relative;overflow:hidden;padding:84px 0 64px;border-bottom:1px solid var(--line)}.hero .blob,.hero .blob2{position:absolute;pointer-events:none;filter:blur(60px);opacity:.5}.hero .blob{width:560px;height:560px;right:-120px;top:-180px;background:radial-gradient(closest-side,var(--melt-1),var(--melt-2) 55%,transparent 72%);animation:melt 16s ease-in-out infinite alternate}.hero .blob2{width:420px;height:420px;right:180px;top:40px;background:radial-gradient(closest-side,var(--melt-3),var(--melt-4) 60%,transparent 75%);opacity:.32;animation:melt 22s ease-in-out infinite alternate-reverse}@keyframes melt{0%{border-radius:60% 40% 55% 45%/55% 60% 40% 45%;transform:translateY(0) scale(1)}50%{border-radius:45% 55% 40% 60%/50% 45% 55% 50%;transform:translateY(30px) scale(1.06)}to{border-radius:55% 45% 60% 40%/45% 55% 45% 60%;transform:translateY(-16px) scale(.98)}}.hero .container{position:relative}.hero h1{font-size:2.2rem;margin:0 0 .6rem}.hero .lead{color:var(--sub);max-width:620px}.hero .origin{font-size:.82rem;color:var(--muted);margin-top:14px}.hero .origin em{font-style:normal;color:var(--brand)}.cta-row{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}.btn{display:inline-block;padding:13px 26px;border-radius:999px;font-size:.95rem;transition:transform .2s,box-shadow .2s}.btn:hover{text-decoration:none;transform:translateY(-2px)}.btn-primary{background:linear-gradient(120deg,var(--melt-2),var(--melt-3));color:#fff;box-shadow:0 6px 18px #e07a5240}.btn-ghost{border:1.5px solid var(--brand);color:var(--brand)}.grid{display:grid;gap:16px}.grid-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.card{border:1px solid var(--line);border-radius:14px;padding:22px;background:#fff;transition:transform .2s,box-shadow .2s}a.card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:0 10px 24px #c1613b14}.card h3{margin:0 0 .4rem;font-size:1.05rem}.card p{margin:0;font-size:.88rem;color:var(--sub)}.card .kicker{font-size:.75rem;color:var(--brand);letter-spacing:.06em}.article-list{list-style:none;padding:0;margin:0}.article-list li{border-bottom:1px solid var(--line);padding:18px 0}.article-list .meta{font-size:.78rem;color:var(--muted);display:flex;gap:10px;align-items:center}.article-list .title{font-family:var(--serif);font-size:1.08rem;display:block;margin:4px 0;color:var(--heading)}.article-list .desc{font-size:.86rem;color:var(--sub);margin:0}.badge{display:inline-block;background:var(--brand-weak);color:var(--brand);border-radius:999px;padding:1px 10px;font-size:.72rem}.pr-banner{font-size:.78rem;color:var(--sub);background:var(--brand-weak);border-radius:8px;padding:8px 14px;margin:0 0 20px}.breadcrumb{font-size:.8rem;color:var(--muted);padding:20px 0 0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}.breadcrumb span{color:var(--line)}.article-header{padding:28px 0 8px}.article-header .meta{color:var(--muted);font-size:.82rem;display:flex;gap:14px;flex-wrap:wrap}.article-body table{border-collapse:collapse;width:100%;font-size:.9rem;display:block;overflow-x:auto}.article-body th,.article-body td{border:1px solid var(--line);padding:8px 12px;text-align:left}.article-body th{background:var(--brand-weak);color:var(--heading)}.article-body blockquote{border-left:3px solid var(--brand);background:var(--brand-weak);margin:1.2rem 0;padding:.8rem 1.2rem;border-radius:0 10px 10px 0}.article-body code{background:var(--brand-weak);padding:.1em .35em;border-radius:4px;font-size:.9em}.note{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;padding:10px 16px;font-size:.82rem;color:var(--sub);margin:24px 0}.filterbar{display:none}html.js .filterbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:8px 0 20px}.search-wrap{flex:1 1 260px}.search-input{width:100%;font:inherit;font-size:.95rem;padding:11px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}.search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #8f4a2820}.filter-chips{display:flex;flex-wrap:wrap;gap:8px}.chip{font:inherit;font-size:.82rem;padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--sub);cursor:pointer;transition:background .2s,color .2s,border-color .2s}.chip:hover{border-color:#e0cbb8;color:var(--brand)}.chip.is-on{background:var(--brand-weak);border-color:var(--brand);color:var(--brand);font-weight:700}.sort-field{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--sub)}.sort-select{font:inherit;font-size:.85rem;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);cursor:pointer}.result-count{font-size:.8rem;color:var(--muted);margin:0 0 8px}.no-result{border:1px solid var(--line);border-radius:12px;padding:28px;text-align:center;color:var(--sub)}.article-body :is(h2,h3){scroll-margin-top:76px}section.block{margin-top:56px}.section-title{display:flex;align-items:baseline;gap:12px}.section-title .more{font-size:.82rem}@media(max-width:640px){.hero{padding:56px 0 44px}.hero h1{font-size:1.5rem}h1{font-size:1.45rem}}:root{--kv-accent: #c9f24a}.hero-inner{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1fr);gap:40px;align-items:center;max-width:1160px;margin:0 auto;padding:0 20px}.hero-copy{position:relative;z-index:2}.eyebrow{font-size:.8rem;letter-spacing:.12em;color:var(--brand);font-weight:700;margin:0 0 .5rem}.brand-lockup{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin:0 0 12px}.brand-big{font-family:var(--serif);font-size:clamp(2.8rem,6vw,4rem);line-height:1;letter-spacing:.01em;color:var(--heading)}.brand-big b{background:linear-gradient(120deg,var(--melt-2),var(--melt-4));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}.brand-read{font-size:.9rem;letter-spacing:.1em;color:var(--muted)}.hero-copy h1{font-family:var(--serif);font-size:clamp(1.4rem,3vw,1.9rem);color:var(--heading);margin:.2rem 0 1rem}.hero-visual{margin:0;min-width:0}.hero-visual .isoscene{width:100%;height:auto;display:block;overflow:visible}.isoscene{--kv-accent: var(--kv-accent)}.isoscene .browser{transition:transform .3s ease;transform-box:fill-box;transform-origin:center}@media(min-width:821px){.isoscene a.browser:hover{transform:translateY(-8px)}}@media(max-width:820px){.hero-inner{grid-template-columns:1fr;gap:24px;text-align:left}.hero-visual{order:2}}.next-step{display:flex;align-items:center;gap:16px;margin:44px 0 0;padding:18px 22px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(120deg,var(--brand-weak),#fff);text-decoration:none;transition:transform .2s,box-shadow .2s;max-width:760px}.next-step:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 24px #c1613b1f}.next-step__label{flex:none;font-family:var(--sans);font-size:.72rem;font-weight:700;letter-spacing:.08em;color:#fff;background:linear-gradient(120deg,var(--melt-2),var(--melt-3));border-radius:999px;padding:5px 12px}.next-step__body{display:flex;flex-direction:column;gap:2px;min-width:0}.next-step__blurb{font-size:.8rem;color:var(--sub)}.next-step__title{font-family:var(--serif);color:var(--heading);font-size:1.05rem}.next-step__arrow{color:var(--brand);margin-left:8px;transition:transform .2s;display:inline-block}.next-step:hover .next-step__arrow{transform:translate(4px)}.related{max-width:760px;margin:56px 0 0}.related>h2{font-size:1.15rem}.related-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.rel-card{display:flex;flex-direction:column;gap:6px;height:100%;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#fff;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}.rel-card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:0 10px 24px #c1613b14;border-color:#e0cbb8}.rel-title{font-family:var(--serif);color:var(--heading);font-size:1rem;line-height:1.5}.rel-desc{font-size:.82rem;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:44px;align-items:start}.article-layout .prose{max-width:none}.article-aside{position:sticky;top:76px;display:flex;flex-direction:column;gap:22px;font-size:.85rem}.toc{border-left:2px solid var(--line);padding-left:16px}.toc__ttl{font-family:var(--serif);color:var(--heading);font-size:.95rem;margin:0 0 10px}.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}.toc__sub{padding-left:14px}.toc a{display:block;color:var(--sub);line-height:1.5;border-left:2px solid transparent;margin-left:-18px;padding-left:16px;transition:color .2s,border-color .2s}.toc a:hover{color:var(--brand);text-decoration:none}.toc a.is-active{color:var(--brand);font-weight:700;border-left-color:var(--brand)}.aside-card{border:1px solid var(--line);border-radius:14px;padding:16px 18px;background:#fff}.aside-card__ttl{font-family:var(--serif);color:var(--heading);font-size:.95rem;margin:0 0 12px}.aside-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.aside-card a{display:block;color:var(--heading);line-height:1.5}.aside-card a:hover{color:var(--brand);text-decoration:none}.aside-card__badge{display:inline-block;font-size:.68rem;color:var(--brand);background:var(--brand-weak);border-radius:999px;padding:1px 8px;margin-right:6px}.next-step--compact{flex-direction:column;align-items:flex-start;gap:8px;margin:0;padding:16px 18px}.next-step--compact .next-step__title{font-size:.98rem}@media(max-width:980px){.article-layout{grid-template-columns:1fr;gap:12px}.article-aside{position:static;margin-top:32px}}.reveal.is-in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}html.js .reveal:not(.is-in){opacity:0;transform:translateY(16px)}@media(prefers-reduced-motion:reduce){.hero .blob,.hero .blob2{animation:none}.btn,.card,a,.browser,.next-step,.rel-card,.site-header{transition:none}.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}.astro-route-announcer{position:absolute;left:0;top:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;width:1px;height:1px}
