:root{color-scheme:light;--bg:#f8f9ff;--card:#fff;--ink:#12141c;--muted:#5a6277;--line:#e3e6ef;--brand:#4f46e5;--brand2:#0d9488;--brand-ink:#fff;--soft:#eef0ff;--shadow:0 1px 2px rgba(18,20,28,.05),0 8px 24px rgba(18,20,28,.06)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",Segoe UI,Roboto,sans-serif}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}.small{font-size:.85rem;color:var(--muted)}
code{font:.9em ui-monospace,SFMono-Regular,Menlo,monospace}

.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em;color:var(--ink)}.brand:hover{text-decoration:none}
.mark{width:28px;height:28px}
nav[aria-label=main]{display:flex;gap:18px;margin-left:auto;font-size:.92rem;overflow-x:auto;white-space:nowrap}
nav[aria-label=main] a{color:var(--muted)}nav[aria-label=main] a:hover{color:var(--ink);text-decoration:none}
.lang{border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:.85rem;color:var(--ink);white-space:nowrap}

.hero{position:relative;overflow:hidden;min-height:540px;display:flex;align-items:center;background:#eef0ff}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:78% 50%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(248,249,255,.95) 0%,rgba(248,249,255,.78) 34%,rgba(248,249,255,0) 62%)}
.hero-in{position:relative;z-index:1;width:100%;padding-top:72px;padding-bottom:72px}
.hero-in>*{max-width:560px}.hero h1{text-wrap:balance}
.eyebrow{margin:0 0 10px;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}
.hero h1{margin:0;font-size:clamp(1.9rem,5vw,3rem);line-height:1.25;letter-spacing:-.01em}
.lead{max-width:680px;margin:18px 0 28px;color:var(--muted);font-size:1.05rem}
.search{display:flex;gap:8px;max-width:640px}
.search input{flex:1;min-width:0;padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font-size:1rem;box-shadow:var(--shadow)}
.search button,.btn,#copy{padding:12px 22px;border:0;border-radius:12px;background:var(--brand);color:var(--brand-ink);font-weight:700;font-size:.95rem;cursor:pointer;display:inline-block}
.btn:hover,.search button:hover,#copy:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.note{margin:14px 0 0;font-size:.85rem;color:var(--muted)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.sec{padding-top:48px}.pg{padding-bottom:56px}
h1{font-size:clamp(1.6rem,4vw,2.2rem);line-height:1.3}
h2{font-size:1.35rem;margin:0 0 18px}.pg>h2,.pg>div+h2{margin-top:44px}h3{font-size:1.05rem;margin:18px 0 6px}
.row{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.more{font-size:.92rem}
.lead2{font-size:1.1rem;max-width:760px}

.layers{display:grid;gap:14px}
.layer{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px 20px 84px;box-shadow:var(--shadow)}
.layer .num{position:absolute;left:22px;top:20px;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.layer h3{margin:0}.layer .sub{margin:2px 0 6px;color:var(--brand);font-weight:600;font-size:.92rem}.layer p:last-child{margin:0;color:var(--muted)}
.layer.l2{margin-left:24px}.layer.l3{margin-left:48px}
.num{font-variant-numeric:tabular-nums}

.chips{display:flex;flex-wrap:wrap;gap:10px}.chips.sp{margin-top:36px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink);font-size:.92rem}
.chip small{color:var(--muted)}.chip:hover{text-decoration:none;border-color:var(--brand)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.grid.g2{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.grid.g3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.card h3{margin:22px 0 6px}.card h3:first-child,.card .num+h3{margin-top:0}.card p{margin:6px 0 0;color:var(--muted)}
.app h3 a{color:var(--ink)}.app .cat{font-size:.8rem;color:var(--brand);margin:0}
.app .sum{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:4.8em}
.app[hidden],.dev[hidden]{display:none}
.num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--soft);color:var(--brand);font-weight:800;margin-bottom:6px}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.b{font-size:.74rem;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--soft);color:var(--brand)}
.b.free{background:color-mix(in srgb,var(--brand2) 16%,transparent);color:var(--brand2)}

.road{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.road li{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:10px 16px}
.soon{margin-left:8px;font-size:.72rem;padding:1px 8px;border-radius:999px;background:var(--soft);color:var(--muted)}
.cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:28px;border-radius:20px;color:#fff;background:linear-gradient(135deg,#4f46e5,#0d9488)}
.cta h2{margin:0 0 4px}.cta p{margin:0;opacity:.9}.cta .btn{background:#fff;color:#312e81}

.filters{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;margin:18px 0;padding:16px;background:var(--card);border:1px solid var(--line);border-radius:16px}
.filters input[type=search]{flex:1 1 260px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-size:1rem}
.filters label{display:flex;align-items:center;gap:6px;font-size:.9rem}
.filters select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.count{color:var(--muted);margin:8px 0 14px}.empty{color:var(--muted);padding:24px 0}

.crumb{font-size:.85rem;color:var(--muted);margin-bottom:12px}
.dhead{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:12px}.dhead h1{margin:0}
.acts{display:flex;gap:10px;flex-wrap:wrap}
.cols{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:20px;margin-top:20px}
.cols aside{display:grid;gap:16px;align-content:start}
.kv{border-collapse:collapse;width:100%;font-size:.93rem;margin-bottom:4px}.kv th{text-align:left;font-weight:600;color:var(--muted);padding:6px 14px 6px 0;vertical-align:top;white-space:nowrap;width:10em}.kv td{padding:6px 0}.kv.wide th{padding-right:28px}
.src{margin:6px 0 0;padding-left:18px;word-break:break-all;font-size:.85rem}
ul{padding-left:20px}

.codebox{position:relative;margin:12px 0 28px}
.codebox pre{margin:0;padding:16px 92px 16px 16px;white-space:pre-wrap;word-break:break-all;border-radius:12px;background:#eef0ff;color:#1e2140;border:1px solid var(--line);overflow-x:auto;font-size:.85rem}
#copy{position:absolute;top:10px;right:10px;padding:6px 14px;font-size:.8rem}
.badge-demo{display:flex;gap:16px;flex-wrap:wrap;margin:12px 0;padding:18px;border-radius:12px;background:var(--soft)}

footer{margin-top:64px;padding:32px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}footer p{margin:4px 0}

@media (max-width:760px){
 .bar{gap:10px}.brand span{display:none}nav[aria-label=main] a[data-nav=cats]{display:none}nav[aria-label=main]{gap:14px;font-size:.85rem}
 .kv th{width:auto}
 .cols{grid-template-columns:1fr}
 .layer{padding-left:20px;padding-top:76px}.layer .num{top:18px}.layer.l2,.layer.l3{margin-left:0}
 .hero{display:block;min-height:0;background:var(--bg)}.hero::after{display:none}.hero-img{position:static;height:auto;aspect-ratio:16/10;object-position:72% 50%}.hero-in{padding-top:28px;padding-bottom:36px}
}

.sform{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px;margin:16px 0 40px;padding:24px;background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.sform label{display:grid;gap:6px;font-size:.9rem;font-weight:600}
.sform .wide{grid-column:1/-1}
.sform input,.sform select,.sform textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font:inherit;font-weight:400}
.sform [aria-invalid=true]{border-color:#e11d48;background:#fff1f2}
.sform .check{display:flex;align-items:flex-start;gap:10px;font-weight:400}.sform .check input{width:auto;margin-top:5px}
.sform .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
#form-msg{margin-left:12px;font-size:.92rem}#form-msg.ok{color:#047857}#form-msg.ng{color:#be123c}
.btn:disabled{opacity:.6;cursor:wait}
@media (max-width:760px){.sform{grid-template-columns:1fr;padding:18px}}

.dev .cat{font-size:.8rem;color:var(--muted);margin:0}.dev .sum{min-height:3.4em}

.rating{font-size:.8rem;font-weight:700;color:#b45309;background:#fef3c7;padding:2px 9px;border-radius:999px}
.rating[hidden]{display:none}
.stars{display:flex;gap:2px;margin:10px 0 4px}
.stars button{background:none;border:0;padding:2px 3px;font-size:2rem;line-height:1;color:#d5d9ea;cursor:pointer;transition:transform .08s}
.stars button:hover{transform:scale(1.12)}
.stars button.on{color:#f59e0b}
.stars button:disabled{cursor:wait;opacity:.6}
#rating-sum{margin:0}
.rating.few{color:var(--muted);background:var(--soft);font-weight:600}
.srow{display:inline-block;letter-spacing:1px;font-size:.95rem;line-height:1;background:linear-gradient(90deg,#f59e0b calc(var(--p)*1%),#e3d5b0 0);-webkit-background-clip:text;background-clip:text;color:transparent;vertical-align:-1px}
.rating{display:inline-flex;align-items:center;gap:2px}

.steps{counter-reset:s;list-style:none;padding:0;margin:14px 0 22px;display:grid;gap:10px}
.steps li{counter-increment:s;position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px 12px 52px}
.steps li::before{content:counter(s);position:absolute;left:14px;top:12px;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:.85rem}
.steps code,.notes code{background:var(--soft);padding:1px 6px;border-radius:6px;font-size:.88em;word-break:break-all}
.steps mark{background:#fde68a;color:inherit;padding:0 2px;border-radius:3px}
.notes{margin:0 0 28px;color:var(--muted);font-size:.92rem}.notes li{margin:4px 0}
.mark{width:30px;height:30px}

.basis{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 16px;margin:6px 0 10px;font-size:.92rem}
.basis summary{cursor:pointer;font-weight:600}.basis p{margin:8px 0 2px;color:var(--muted)}
.rank{list-style:none;padding:0;margin:14px 0;display:grid;gap:12px}
.rank li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:14px;align-items:stretch}
.rank .rk{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2px;border-radius:14px;background:var(--soft);color:var(--brand);font-weight:800;font-size:1.5rem;line-height:1}
.rank .rk small{font-size:.7rem;font-weight:700;line-height:1}
.rank li:nth-child(1) .rk{background:linear-gradient(135deg,#fde68a,#f59e0b);color:#78350f}
.rank li:nth-child(2) .rk{background:linear-gradient(135deg,#e5e7eb,#9ca3af);color:#374151}
.rank li:nth-child(3) .rk{background:linear-gradient(135deg,#fed7aa,#c2813a);color:#5b3410}
.rank .card{margin:0}
@media (max-width:760px){.rank li{grid-template-columns:44px minmax(0,1fr);gap:10px}.rank .rk{font-size:1.2rem}}

#message{margin-top:20px}
.sform.one{grid-template-columns:1fr;box-shadow:none;border:0;padding:0;margin:12px 0 0}
#msg-msg{margin-left:12px;font-size:.92rem}#msg-msg.ok{color:#047857}#msg-msg.ng{color:#be123c}

.login{border:1px solid var(--brand);color:var(--brand);border-radius:999px;padding:3px 12px;font-size:.85rem;white-space:nowrap}.login:hover{background:var(--soft);text-decoration:none}
.warn{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:10px 14px;font-size:.92rem;margin:12px 0}
.msg{border-top:1px solid var(--line);padding:12px 0}.msg:first-child{border-top:0}.msg .body{white-space:pre-wrap;margin:6px 0}
.panel{margin-top:22px}.panel .card{margin:12px 0}
@media (max-width:760px){.login{display:none}}
#acct-claims{margin-bottom:16px}

.plist{padding-left:20px}.plist li{margin:8px 0}
#contact-msg{margin-left:12px;font-size:.92rem}#contact-msg.ok{color:#047857}#contact-msg.ng{color:#be123c}

.login.on{background:var(--brand);color:var(--brand-ink)}
.sform.one.boxed{max-width:760px;padding:28px 32px;margin:18px 0 0;background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.sform.one.boxed input,.sform.one.boxed select,.sform.one.boxed textarea{padding:12px 14px}
@media (max-width:760px){.sform.one.boxed{padding:20px 18px}}
#claim-details{margin-top:24px}#claim-details>summary{font-size:1rem}
.msg button{font:inherit;font-size:.82rem;padding:5px 14px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}.msg button:hover{background:var(--soft)}