/* Guide pages (/guide/, /about/). Source: 03_マーケ/04_LP/_tools/guide/assets/guide.css — build copies it to deploy/assets/guide/. Brand tokens mirror deploy/index.html */
:root{
  --sumi:#17150F;--sumi-2:#221F17;
  --vermilion:#D7322A;--vermilion-d:#B62A22;
  --gold:#C0913C;--gold-soft:#D8B877;
  --paper:#F6F1E7;--paper-2:#EFE7D6;
  --ink:#141210;--ink-soft:#57514a;--line:#E4DED3;--white:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:#fff;color:var(--ink);font-family:"Work Sans",system-ui,sans-serif;font-size:17px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit}
h1,h2,h3{margin:0;font-family:"Shippori Mincho",serif;font-weight:700;line-height:1.22}
.wrap{width:min(1200px,92vw);margin:0 auto}
.col{width:min(760px,92vw);margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:.6em;background:var(--vermilion);color:#fff;font-weight:600;font-size:.95rem;
  padding:1em 1.7em;text-decoration:none;transition:background .2s}
.btn:hover{background:var(--vermilion-d)}

/* ---------- header: solid black bar ---------- */
.bar{position:sticky;top:0;z-index:50;background:var(--sumi);color:#fff;border-bottom:2px solid var(--gold)}
.bar__in{display:flex;align-items:center;justify-content:space-between;gap:16px;width:min(1200px,92vw);margin:0 auto;height:64px}
.brand{display:flex;align-items:center;gap:.65em;text-decoration:none;color:#fff}
.brand__badge{width:38px;height:38px;border-radius:50%;background:var(--vermilion);display:grid;place-items:center}
.brand__badge svg{width:22px;height:22px;fill:#fff}
.brand__wm{font-family:"Shippori Mincho",serif;font-weight:700;letter-spacing:.12em;font-size:.95rem;line-height:1.1;color:var(--gold-soft)}
.brand__wm small{display:block;font-family:"Work Sans";font-weight:500;letter-spacing:.2em;font-size:.58rem;color:rgba(255,255,255,.7);text-transform:uppercase}
.links{display:flex;gap:clamp(16px,2.4vw,34px)}
.links a{color:rgba(255,255,255,.85);text-decoration:none;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase}
.links a:hover,.links a[aria-current]{color:var(--gold-soft)}
.bar__cta{background:var(--vermilion);color:#fff;text-decoration:none;font-weight:600;font-size:.84rem;padding:.75em 1.2em;white-space:nowrap}
.bar__cta:hover{background:var(--vermilion-d)}
@media(max-width:820px){.links{display:none}.bar__in{height:58px}}

/* ---------- breadcrumb pills ---------- */
.crumb{margin:18px 0 0}
.crumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;font-size:.78rem}
.crumb li{background:#F1EEE8;padding:.35em .9em}
.crumb a{text-decoration:none;color:var(--ink-soft)}.crumb a:hover{color:var(--vermilion)}

/* ---------- hub ---------- */
.page-title{text-align:center;padding:clamp(26px,4vw,48px) 0 clamp(20px,3vw,32px)}
.page-title h1{font-size:clamp(2rem,4.6vw,3.2rem)}
.page-title p{max-width:40em;margin:.8rem auto 0;color:var(--ink-soft)}
/* topic tiles: photo + dark overlay + white serif title */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(10px,1.6vw,20px)}
@media(max-width:760px){.tiles{grid-template-columns:1fr}}
.tile{position:relative;display:block;aspect-ratio:4/5;overflow:hidden;color:#fff;text-decoration:none;background:var(--sumi)}
@media(max-width:760px){.tile{aspect-ratio:16/9}}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tile:hover img{transform:scale(1.04)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(10,8,5,.82))}
.tile__t{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:clamp(16px,2.4vw,26px)}
.tile__t span{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-soft)}
.tile__t h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-top:.3rem}
.tile__t p{margin:.4rem 0 0;font-size:.9rem;color:rgba(255,255,255,.82)}
.sec{padding:clamp(48px,7vw,88px) 0 0}
.sec__h{text-align:center;margin-bottom:clamp(22px,3vw,36px)}
.sec__h span{display:block;font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--vermilion);margin-bottom:.4rem}
.sec__h h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}
.sec__h h2::after{content:"";display:block;width:44px;height:2px;background:var(--gold);margin:.9rem auto 0}
/* feature (pillar): black band, big photo */
.feature{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);background:var(--sumi);color:#fff;text-decoration:none;margin-bottom:clamp(18px,2.4vw,28px)}
@media(max-width:760px){.feature{grid-template-columns:1fr}}
.feature img{width:100%;height:100%;object-fit:cover;min-height:260px}
.feature__b{padding:clamp(22px,3.4vw,44px);display:flex;flex-direction:column;justify-content:center;gap:.8rem}
.feature__b .tag{align-self:flex-start;font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;background:var(--vermilion);padding:.3em .7em}
.feature__b h3{font-size:clamp(1.5rem,2.8vw,2.2rem);color:#fff}
.feature__b p{margin:0;color:rgba(255,255,255,.78)}
.feature__b .more{color:var(--gold-soft);font-weight:600;font-size:.9rem}
.feature:hover h3{color:var(--gold-soft)}
/* cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.2vw,28px)}
@media(max-width:960px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.cards{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;text-decoration:none;border:1px solid var(--line);background:#fff;transition:box-shadow .2s}
.card:hover{box-shadow:0 14px 30px rgba(0,0,0,.12)}
/* CC BY thumbnails: short credit under the card/tile/feature (outside the link) */
.cw{display:flex;flex-direction:column;min-width:0}
.cw>.card,.cw>.tile{flex:1}
.cw--feature{margin-bottom:clamp(18px,2.4vw,28px)}.cw--feature>.feature{margin-bottom:0}
.card-credit{margin:.35rem 0 0;font-size:.72rem;line-height:1.4;color:var(--ink-soft)}
.cw--card>.card-credit{min-height:1.4em}
.card-credit a{color:inherit}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.card__b{padding:1.1rem 1.25rem 1.3rem}
.card__k{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-soft)}
.card h3{font-size:1.32rem;color:var(--vermilion-d);margin:.35rem 0 .55rem}
.card:hover h3{text-decoration:underline;text-underline-offset:4px}
.card p{margin:0;font-size:.93rem;color:#2c2925;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- article ---------- */
.a-head{text-align:center;padding:clamp(26px,4vw,52px) 0 clamp(18px,3vw,28px)}
.a-head h1{font-size:clamp(2rem,4.8vw,3.3rem);max-width:18em;margin:0 auto}
.byline{margin-top:.9rem;font-size:.9rem;color:var(--ink-soft)}
.byline a{color:var(--vermilion-d);text-decoration:none}.byline a:hover{text-decoration:underline}
.byline .sep{margin:0 .6em;color:var(--line)}
.a-hero{width:min(1200px,100vw);margin:0 auto clamp(26px,4vw,44px)}
.a-hero img{width:100%;aspect-ratio:21/9;object-fit:cover}
@media(max-width:760px){.a-hero img{aspect-ratio:4/3}}
.a-hero--top img{object-position:50% 0}
.a-hero--bottom img{object-position:50% 100%}
.disclose{font-size:.85rem;color:var(--ink-soft);background:#F7F4EE;border-left:3px solid var(--gold);padding:.8em 1em;margin:0 0 1.6rem}
.prose .disclose a{color:inherit;font-weight:400;border-bottom:0;text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:.2em}
.prose .disclose a:hover{color:var(--vermilion-d)}
/* ways to see: a table of ways plus one button (10/21 owner: B only) */
.ways{background:var(--sumi);padding:1rem 1.1rem 1.2rem;margin:1.6rem 0}
.ways .tbl{margin:0 0 1rem;border-color:rgba(255,255,255,.15)}
.ways .tbl table{min-width:0}
.ways .tbl th,.ways .tbl td{color:rgba(255,255,255,.88);border-bottom-color:rgba(255,255,255,.15);background:transparent}
.ways .tbl thead th{background:transparent;color:var(--gold-soft)}
.ways .tbl th:first-child,.ways .tbl td:first-child{position:static;background:transparent;box-shadow:none}
.prose .ways__cta{margin:0}
.ways .tbl a,.ways .tbl strong{color:inherit}
.prose .ways__cta a.btn{color:#fff;border-bottom:0}
.answer{background:var(--sumi);color:#fff;padding:1.3rem 1.5rem;margin:0 0 1.8rem}
.prose .answer strong{display:block;font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:.4rem}
.answer p{margin:0;font-size:1.05rem}
.toc{border:1px solid var(--line);padding:1rem 1.3rem;margin:0 0 2.4rem;font-size:.92rem}
.toc b{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}
.toc ol{margin:.5rem 0 0;padding-left:1.3em;columns:2;column-gap:2rem}
@media(max-width:560px){.toc ol{columns:1}}
.toc a{text-decoration:none;color:var(--ink)}.toc a:hover{color:var(--vermilion)}
.prose h2{font-size:clamp(1.65rem,3.2vw,2.25rem);margin:3.4rem 0 1.1rem}
.prose h2::before{content:"";display:block;width:36px;height:3px;background:var(--vermilion);margin-bottom:.9rem}
.prose h3{font-size:1.25rem;margin:2rem 0 .6rem}
.prose p,.prose ul,.prose ol{margin:0 0 1.15rem}
.prose strong{font-weight:700;color:#000}
.prose a{color:var(--vermilion-d);font-weight:600;text-decoration:none;border-bottom:1px solid rgba(182,42,34,.35)}
.prose a:hover{border-bottom-color:var(--vermilion-d)}
.prose ul li{margin:.45rem 0}
.prose figure{margin:2rem 0}
.prose figure.wide{width:min(1000px,92vw);margin-left:50%;transform:translateX(-50%)}
.prose figcaption{font-size:.82rem;color:var(--ink-soft);margin-top:.5rem;text-align:center}
.a-hero figcaption.credit{font-size:.75rem;color:var(--ink-soft);margin:.4rem 1rem 0;text-align:right}
figcaption.credit a{color:inherit}
.diagram{background:#F7F4EE;border:1px dashed #cfc5b4;aspect-ratio:16/9;display:grid;place-items:center;text-align:center;color:var(--ink-soft);font-size:.9rem;padding:1rem}
.tbl{overflow-x:auto;margin:1.6rem 0;border:1px solid var(--line)}
.tbl table{border-collapse:collapse;min-width:560px;width:100%;font-size:.9rem}
.tbl th,.tbl td{padding:.75rem .9rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl thead th{background:var(--sumi);color:#fff;font-size:.78rem;letter-spacing:.06em}
.tbl th:first-child,.tbl td:first-child{position:sticky;left:0;background:#fff;box-shadow:1px 0 0 var(--line);font-weight:600}
.tbl thead th:first-child{background:var(--sumi)}
.tbl tr.own td{background:#FCF1EC}
.faq details{border-bottom:1px solid var(--line);padding:1rem 0}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{font-family:"Shippori Mincho",serif;font-weight:700;font-size:1.1rem;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--vermilion);font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:.6rem 0 0}
/* end CTA: full-bleed dark band */
.cta{background:var(--sumi);color:rgba(255,255,255,.85);margin-top:clamp(48px,7vw,80px)}
.cta__in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:stretch;width:min(1200px,100vw);margin:0 auto}
@media(max-width:760px){.cta__in{grid-template-columns:1fr}}
.cta img{width:100%;height:100%;object-fit:cover;min-height:280px}
.cta__b{padding:clamp(26px,4vw,56px);display:flex;flex-direction:column;justify-content:center}
.cta__b span{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-soft)}
.cta__b h2{color:#fff;font-size:clamp(1.6rem,3vw,2.3rem);margin:.5rem 0 .8rem}
.cta__b p{margin:0 0 1.4rem}
.cta__b .btn{align-self:flex-start}
/* floating CTA (desktop right edge / mobile bottom bar) */
.float{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;text-decoration:none;
  background:var(--vermilion);color:#fff;padding:1rem .9rem;text-align:center;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;line-height:1.35;box-shadow:-6px 6px 18px rgba(0,0,0,.18)}
.float b{font-family:"Shippori Mincho",serif;font-size:1rem;letter-spacing:.04em;text-transform:none;margin-top:.2rem}
.float:hover{background:var(--vermilion-d)}
@media(max-width:820px){.float{top:auto;bottom:0;left:0;right:0;transform:none;flex-direction:row;justify-content:center;gap:.6em;align-items:baseline;padding:.85rem}}
.sources{font-size:.86rem;color:var(--ink-soft);margin-top:2.6rem}
.sources h2{font-size:1.15rem!important;margin:0 0 .6rem!important}
.sources h2::before{display:none!important}
.sources ol{padding-left:1.3em;margin:0}
.pub{margin-top:2rem;padding:1.2rem 1.4rem;background:#F7F4EE;font-size:.88rem;color:var(--ink-soft)}
.pub strong{color:var(--ink)}
.pub nav{display:flex;flex-wrap:wrap;gap:1.2em;margin-top:.5rem}
.pub a{color:var(--vermilion-d);font-weight:600}
.related{padding:clamp(48px,7vw,80px) 0}
@media(min-width:961px){.related .cards{grid-template-columns:repeat(4,minmax(0,1fr))}}

/* ---------- footer ---------- */
.foot{background:var(--sumi);color:rgba(255,255,255,.75);padding:clamp(40px,6vw,64px) 0 28px;border-top:2px solid var(--gold)}
.foot__g{display:flex;justify-content:space-between;flex-wrap:wrap;gap:28px}
.foot__brand{font-family:"Shippori Mincho",serif;font-size:1.3rem;color:var(--gold-soft);letter-spacing:.08em}
.foot__brand small{display:block;font-family:"Work Sans";font-size:.8rem;letter-spacing:0;color:rgba(255,255,255,.6);margin-top:.4rem;max-width:26em}
.foot__l{display:flex;flex-direction:column;gap:.5rem;font-size:.92rem}
.foot a{color:rgba(255,255,255,.8);text-decoration:none}.foot a:hover{color:var(--gold-soft)}
.foot__legal{margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.78rem}
.foot__legal nav{display:flex;flex-wrap:wrap;gap:18px}
@media(max-width:820px){body.has-float{padding-bottom:56px}}

/* hub tiles adapt to how many clusters have published guides */
.tiles--1{grid-template-columns:1fr}.tiles--1 .tile{aspect-ratio:21/9}
.tiles--2{grid-template-columns:1fr 1fr}
@media(max-width:760px){.tiles--2{grid-template-columns:1fr}}
.tiles--4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.tiles--4{grid-template-columns:1fr 1fr}.tiles--4 .tile{aspect-ratio:4/3}}
@media(max-width:760px){.tiles--4{grid-template-columns:1fr}.tiles--4 .tile{aspect-ratio:16/9}}
.spacer{height:clamp(56px,8vw,96px)}
.prose code{font-size:.9em;background:#F1EEE8;padding:.1em .3em}
.prose figure img{width:auto;max-width:100%;max-height:min(78vh,760px);margin:0 auto}

/* cookie consent banner (same behaviour as LP) */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:9999;background:var(--paper);border-top:2px solid var(--gold);box-shadow:0 -8px 30px rgba(23,21,15,.18)}
.cookie-banner[hidden]{display:none}
.cookie-banner__inner{max-width:1080px;margin:0 auto;padding:15px 20px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cookie-banner__text{margin:0;color:var(--ink);font-size:.88rem;line-height:1.55;flex:1 1 320px}
.cookie-banner__link{color:var(--vermilion);text-underline-offset:2px}
.cookie-banner__actions{display:flex;gap:10px;flex:0 0 auto}
.cookie-btn{font-family:"Work Sans",system-ui,sans-serif;font-weight:600;font-size:.85rem;padding:.7em 1.6em;border-radius:999px;border:1px solid transparent;cursor:pointer}
.cookie-btn--gold{background:var(--gold);color:#1a1508}
.cookie-btn--ghost{background:transparent;color:var(--ink-soft);border-color:var(--line)}
@media(max-width:560px){.cookie-banner__inner{padding:13px 15px;gap:12px}.cookie-banner__actions{width:100%}.cookie-btn{flex:1}}