/* Layout: follows createbase.net — a single 780px column on a warm ground, dark charcoal bands with gold hairlines, left-aligned 600px reading column. Single light look by design. */
:root{
  --measure:600px;--page:780px;
  --wine:#1c1f25;--wine-dark:#0f1115;--wine-deep:#0a0b0e;
  --gold:#b08d57;--gold-light:#d4ad7e;--gold-pale:#f0e6d8;--gold-ink:#7d5a2a;
  --cream:#f8f6f2;--paper:#ffffff;--gray:#e4e2dd;
  --ink:#1c1f25;--text:#262b33;--muted:#4c5563;--line:#e8e4dc;
  --blue:#2477a4;--blue-wash:#e4f0f7;--ochre:#9a6100;--ochre-wash:#f6ecdc;
  --f-serif:Georgia,"Noto Serif JP","Hiragino Mincho ProN",serif;
  --f-sans:Arial,Helvetica,"Hiragino Sans","Yu Gothic",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --nav-h:56px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{background:#e6e3dd}
body{background:var(--cream);color:var(--ink);font-family:var(--f-sans);line-height:1.8;margin:0 auto;max-width:var(--page);box-shadow:0 0 60px rgba(0,0,0,.15);font-size:16px}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
p{margin:0}
h1,h2,h3,h4{margin:0;text-wrap:balance}
h1,h2,h3,h4,.pc-name,.results li,.tools b{word-break:auto-phrase}
/* anchors land below the sticky nav */
[id]{scroll-margin-top:calc(var(--nav-h) + 16px)}
.accent{color:var(--gold-light)}
.tag{font-size:9px;letter-spacing:.24em;color:var(--gold-ink);font-weight:700}

/* top nav */
.topnav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid rgba(30,58,95,.08);box-shadow:0 2px 12px rgba(13,31,58,.06)}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:var(--nav-h);padding-inline:18px}
.logo{font-family:Georgia,serif;font-weight:bold;font-size:20px;letter-spacing:.05em;white-space:nowrap;color:var(--wine-dark)}
.logo small{font-size:11px;letter-spacing:.12em;color:var(--gold);margin-left:8px;font-weight:700}
.topnav nav{display:flex;align-items:center;gap:16px}
.topnav nav a{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--wine-dark)}
.topnav nav a:hover{color:var(--gold)}
.topnav nav a.cta{background:var(--wine-dark);color:#fff;padding:8px 14px;border-radius:3px}
.topnav nav a.cta:hover{background:var(--gold);color:#fff}

/* hero */
.hero-img{background:#0a0b0e}
.hero-img img{display:block;width:100%;height:auto}
.hero-copy{background:#0a0b0e;padding:34px max(24px,calc((100% - var(--measure))/2)) 44px}
.os-name{display:block;font-family:Georgia,var(--f-serif);font-size:13px;letter-spacing:.24em;color:var(--gold-light);margin-bottom:12px;text-transform:uppercase}
.hero-copy .diff{font-family:var(--f-serif);font-size:clamp(17px,4.2vw,21px);color:#fff;letter-spacing:.03em;line-height:1.6;max-width:560px;margin:0 0 12px}
.hero-copy .diff em{font-style:normal;color:var(--gold-light)}
.hero-copy p.sub{font-family:var(--f-serif);font-size:14.5px;color:rgba(255,255,255,.78);line-height:1.9;max-width:540px;margin:0 0 24px}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;max-width:420px}
.btn{display:inline-block;padding:13px 22px;font-size:13px;font-weight:700;letter-spacing:.06em;flex:1;white-space:nowrap;text-align:center;transition:.2s}
.btn-gold{background:var(--gold);color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3)}
.btn-gold:hover{background:var(--gold-light)}
.btn-line{border:1px solid rgba(212,173,126,.6);color:var(--gold-light)}
.btn-line:hover{background:rgba(212,173,126,.12)}

/* sections: one 600px column, shared left edge */
section{padding:52px 20px}
section.bg-gray{background:var(--gray);box-shadow:inset 0 4px 16px rgba(0,0,0,.06),inset 0 -4px 16px rgba(0,0,0,.06)}
.sec-head{max-width:var(--measure);margin:0 auto 30px}
.sec-label{display:table;background:var(--wine);color:#fff;font-size:11px;letter-spacing:.25em;padding:5px 12px;margin:0 0 14px;font-weight:700}
.sec-title{display:block;font-family:var(--f-serif);font-size:clamp(21px,4.8vw,28px);font-weight:600;line-height:1.55;letter-spacing:.05em;color:var(--wine-dark)}
.sec-title .accent{color:var(--gold)}
.sec-title::after{content:"";display:block;width:34px;height:2px;margin:12px 0 0;background:linear-gradient(90deg,rgba(176,141,87,.15),var(--gold),rgba(176,141,87,.15))}
.sec-note{font-size:14.5px;color:var(--text);line-height:1.95;letter-spacing:.03em;max-width:var(--measure);margin:14px auto 0}
.sub-head{max-width:var(--measure);margin:40px auto 8px;font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark);letter-spacing:.05em}
.sub-note{font-size:14.5px;color:var(--text);max-width:var(--measure);margin:0 auto 10px;line-height:1.95}
.can{max-width:var(--measure);margin:26px auto 6px;font-family:var(--f-serif);font-size:15px;font-weight:600;color:var(--gold-ink);letter-spacing:.03em}
.example{display:flex;align-items:center;gap:10px;max-width:var(--measure);margin:12px auto 0;font-family:var(--f-serif);font-size:15px;color:var(--wine-dark)}
.example span{font-family:var(--f-sans);font-size:10px;letter-spacing:.2em;color:#fff;background:var(--gold);padding:3px 8px;border-radius:2px}
.figure{max-width:var(--measure);margin:0 auto}
.figure img{display:block;width:100%;height:auto;border-radius:6px;box-shadow:0 10px 30px rgba(15,17,21,.18)}

/* video placeholder */

/* dark band: global challenge */
.global{background:var(--wine-dark);padding:52px 20px;position:relative;overflow:hidden;box-shadow:inset 0 10px 36px rgba(0,0,0,.35)}
.global::before,.footer-cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.05) 36px,rgba(176,141,87,.05) 37px);pointer-events:none}
.global > *{position:relative}
.global .sec-label{background:var(--gold);color:#fff}
.global .sec-title{color:#fff}
.global .sec-title .accent{color:var(--gold-light)}
.global .sec-note{color:rgba(255,255,255,.88)}
.stats{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;max-width:var(--measure);margin:0 auto;list-style:none;padding:0}
@media(min-width:560px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stats li{border:1px solid rgba(212,173,126,.45);border-radius:6px;padding:18px 18px 14px;display:flex;flex-direction:column;gap:6px;background:rgba(255,255,255,.06)}
.stats b{font-family:Georgia,var(--f-serif);font-size:34px;font-weight:600;color:var(--gold-light);line-height:1.1;font-variant-numeric:tabular-nums}
.stats b small{font-size:15px;margin-left:3px}
.stats .stat-n{font-family:Georgia,serif;font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.45)}
.stats h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:#fff;line-height:1.5}
.stats p{font-size:13.5px;color:rgba(255,255,255,.88);line-height:1.85}
.stats cite{font-style:normal;font-size:10.5px;color:rgba(255,255,255,.62);letter-spacing:.02em}

/* numbered critique cards (Japan) */
.crit{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;max-width:var(--measure);margin:0 auto;list-style:none;padding:0}
@media(min-width:520px){.crit{grid-template-columns:repeat(2,minmax(0,1fr))}}
.crit li{background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:18px 18px 16px;display:flex;flex-direction:column;gap:6px}
.crit .n{font-family:Georgia,serif;font-size:22px;color:var(--gold);line-height:1}
.crit h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark)}
.crit p{font-size:13.5px;color:var(--muted);line-height:1.85}
.crit .more{margin-top:auto;padding-top:6px;align-self:flex-start;font-size:12.5px;font-weight:700;color:var(--gold-ink)}
.crit .more::after{content:" ›"}
.crit .more:hover{text-decoration:underline}

/* further reading */
.readmore{max-width:var(--measure);margin:22px auto 0}
.readmore .tag{display:block;margin-bottom:8px}
.readmore ul{list-style:none;margin:0;padding:0;background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px}
.readmore li{border-bottom:1px solid var(--line)}
.readmore li:last-child{border-bottom:none}
.readmore a{display:flex;justify-content:space-between;gap:12px;padding:12px 16px;font-size:14px;color:var(--wine-dark);line-height:1.6}
.readmore a::after{content:"›";color:var(--gold);font-size:18px;line-height:1}
.readmore a:hover{background:var(--gold-pale)}
.thesis .readmore{margin-top:26px}
.thesis .readmore .tag{color:var(--gold-light)}
.thesis .readmore ul{background:transparent;border-color:rgba(212,173,126,.4)}
.thesis .readmore li{border-color:rgba(212,173,126,.25)}
.thesis .readmore a{color:#fff}
.thesis .readmore a::after{color:var(--gold-light)}
.thesis .readmore a:hover{background:rgba(255,255,255,.06)}

/* root cause */
.two-causes{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;max-width:var(--measure);margin:0 auto 26px}
@media(min-width:560px){.two-causes.three{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tc{background:var(--wine);border-radius:6px;padding:18px 16px;display:flex;flex-direction:column;gap:6px}
.tc-k{font-family:var(--f-serif);font-size:13px;letter-spacing:.2em;color:var(--gold-light);line-height:1}
.tc h4{font-family:var(--f-serif);font-size:16px;color:#fff;font-weight:600;line-height:1.5}
.tc p{font-size:13.5px;color:rgba(255,255,255,.85);line-height:1.85}
.matrix-wrap{max-width:var(--measure);margin:0 auto;overflow-x:auto;background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px}
.matrix{width:100%;border-collapse:collapse;font-size:12.5px;min-width:360px}
.matrix th,.matrix td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:center}
.matrix thead th{font-size:11px;color:var(--muted);font-weight:700;line-height:1.4;background:var(--cream)}
.matrix thead th:first-child,.matrix tbody th{text-align:left}
.matrix tbody th{font-family:var(--f-serif);font-weight:600;color:var(--wine-dark)}
.matrix tbody th small{display:block;font-family:var(--f-sans);font-size:11px;font-weight:500;color:var(--muted);margin-top:2px}
.matrix td{color:var(--gold);font-size:15px}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:none}
.cycles{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;align-items:center;max-width:var(--measure);margin:0 auto}
@media(min-width:620px){.cycles{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:8px}}
.cycle-card{margin:0;border-radius:6px;overflow:hidden;border:1px solid rgba(176,141,87,.35)}
.cycle-card svg{display:block;width:100%;height:auto}
.cycle-card figcaption{font-size:12px;font-weight:700;letter-spacing:.12em;padding:10px 14px}
.cycle-card.vic{background:#0f1115}.cycle-card.vic figcaption{color:#d4ad7e}
.cycle-card.vir{background:#f8f6f2}.cycle-card.vir figcaption{color:#7d5a2a}
.cycle-arrow{display:flex;justify-content:center;align-items:center}
.cycle-arrow svg{display:block;width:26px;height:26px}
@media(max-width:619px){.cycle-arrow svg{transform:rotate(90deg)}}
.answer{max-width:var(--measure);margin:18px auto 0;background:var(--wine-dark);color:#fff;border-radius:6px;padding:22px 20px}
.answer .tag{color:var(--gold-light);display:block;margin-bottom:8px}
.answer p{font-family:var(--f-serif);font-size:15px;line-height:1.95;letter-spacing:.04em}
.answer p em{font-style:normal;color:var(--gold-light)}

/* solution */
.solve{max-width:var(--measure);margin:0 auto;display:flex;flex-direction:column;gap:10px}
.solve-row{display:grid;grid-template-columns:minmax(0,1fr) 22px minmax(0,1.25fr);align-items:stretch;gap:8px}
.solve-row .q,.solve-row .a{border-radius:5px;padding:14px 16px;display:flex;flex-direction:column;gap:3px}
.solve-row .q{background:#fff;border:1px solid rgba(28,31,37,.16)}
.solve-row .a{background:#f3e7d3;border:1px solid rgba(176,141,87,.4)}
.solve-row .k{font-size:9px;letter-spacing:.2em;font-weight:700;color:var(--muted)}
.solve-row .a .k{color:var(--gold-ink)}
.solve-row h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark);line-height:1.5}
.solve-row .q h4{font-size:15px}
.solve-row p{font-size:13.5px;color:var(--text);line-height:1.85}
.solve-row .ar{display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:18px}
@media(max-width:520px){.solve-row{grid-template-columns:minmax(0,1fr)}.solve-row .ar{transform:rotate(90deg);height:18px}}
.principles{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;max-width:var(--measure);margin:32px auto 0}
@media(min-width:560px){.grid2{grid-template-columns:repeat(2,minmax(0,1fr))}}
.pri{background:#fff;border-left:4px solid var(--gold);padding:16px 18px;box-shadow:0 4px 14px rgba(15,17,21,.05)}
.pri h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark);margin-bottom:4px}
.pri p{font-size:13.5px;color:var(--muted);line-height:1.85}
.pri cite.ref{display:block;font-style:normal;font-size:10.5px;color:var(--gold);margin-top:6px;letter-spacing:.02em}
.have{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:10px}
@media(min-width:560px){.have{grid-template-columns:repeat(2,minmax(0,1fr))}}
.pc{background:linear-gradient(180deg,#fff 0%,#fafaf6 100%);border:1px solid rgba(28,31,37,.16);border-radius:10px;padding:20px 18px 16px;position:relative;overflow:hidden;display:flex;flex-direction:column;gap:6px;box-shadow:0 1px 2px rgba(15,17,21,.04),0 4px 14px rgba(15,17,21,.06)}
.pc::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent,var(--gold-light) 30%,var(--gold) 50%,var(--gold-light) 70%,transparent)}
.pc-tag{font-size:9px;letter-spacing:.2em;color:var(--muted);font-weight:700}
.pc-name{font-family:var(--f-serif);font-size:15px;font-weight:600;color:var(--wine-dark);line-height:1.5;letter-spacing:.03em}
.pc-desc{font-size:13.5px;color:var(--muted);line-height:1.85}

/* what it enables */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;max-width:var(--measure);margin:0 auto}
@media(max-width:460px){.split{grid-template-columns:minmax(0,1fr)}}
.split-col{border-radius:6px;padding:18px 16px;display:flex;flex-direction:column;gap:4px}
.split-col .k{font-size:10px;letter-spacing:.24em;font-weight:700}
.split-col h4{font-family:var(--f-serif);font-size:16px;font-weight:600}
.split-col p{font-size:13.5px;line-height:1.85}
.split-col.mem{background:#fff;border:1px solid rgba(28,31,37,.12)}
.split-col.mem .k{color:var(--muted)}
.split-col.mem h4{color:var(--wine-dark)}
.split-col.mem p{color:var(--muted)}
.split-col.think{background:var(--wine);border:1px solid var(--wine)}
.split-col.think .k{color:var(--gold-light)}
.split-col.think h4{color:#fff}
.split-col.think p{color:rgba(255,255,255,.78)}
.levels{list-style:none;margin:0 auto;padding:0;max-width:var(--measure);display:flex;flex-direction:column;gap:8px}
.levels li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:14px 16px}
.levels .lv{width:32px;height:32px;border-radius:50%;background:var(--wine);color:var(--gold-light);font-family:Georgia,serif;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.levels li div{min-width:0}
.levels h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark)}
.levels p{font-size:13.5px;color:var(--muted);line-height:1.85}

/* thesis band */
.thesis{background:var(--wine);color:#fff;padding:44px max(28px,calc((100% - var(--measure))/2));position:relative}
.thesis .tag{color:var(--gold-light);display:block;margin-bottom:14px}
.thesis p{font-family:var(--f-serif);font-size:clamp(16px,4vw,20px);line-height:2;letter-spacing:.05em;max-width:560px;margin:0}
.thesis em{font-style:normal;color:var(--gold-light)}

/* moat */
.moat{max-width:var(--measure);margin:0 auto}
.moat blockquote{margin:0 0 26px;font-family:var(--f-serif);font-size:clamp(16px,4vw,19px);line-height:2;color:var(--wine-dark);letter-spacing:.04em}
.moat blockquote em{font-style:normal;color:var(--gold)}
.moat .principles{margin-top:0}

/* tools */
.tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-width:var(--measure);margin:0 auto;list-style:none;padding:0}
@media(min-width:560px){.tools{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tools li{background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:16px 14px;display:flex;flex-direction:column;gap:4px}
.tools b{font-family:var(--f-serif);font-size:15px;font-weight:600;color:var(--wine-dark)}
.tools span{font-size:13px;color:var(--muted);line-height:1.65}
.tools li.core{grid-column:1/-1;background:var(--wine);border-color:var(--wine)}
.tools li.core b{color:var(--gold-light);font-size:15px;letter-spacing:.06em}
.tools li.core span{color:rgba(255,255,255,.75)}

/* gallery tabs */
.gal{max-width:var(--measure);margin:0 auto}
.gal-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.gal-tabs button{font-family:var(--f-sans);font-size:13px;font-weight:700;letter-spacing:.04em;padding:9px 14px;border-radius:3px;border:1px solid var(--wine-dark);background:#fff;color:var(--wine-dark);cursor:pointer}
.gal-tabs button[aria-selected="true"]{background:var(--wine-dark);color:#fff}
.gal-note{font-size:14px;color:var(--text);line-height:1.85;margin:0 0 12px}

/* flowchart (tab 1) */
.flowbox{max-width:var(--measure);margin:0 auto}
.flowq{font-family:var(--f-serif);font-size:14px;line-height:1.8;color:var(--wine-dark);background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px 6px 0 0;border-bottom:none;padding:12px 16px;margin:0}
.flowq span{display:inline-block;font-family:var(--f-sans);font-size:10px;letter-spacing:.2em;color:#fff;background:var(--wine);padding:2px 8px;border-radius:2px;margin-right:10px}
.flowchart{max-width:var(--measure);margin:0 auto 8px;background:#0f1115;border:1px solid #0f1115;border-radius:0 0 6px 6px;overflow-x:auto}
.flowchart svg{display:block;width:100%;height:auto}
.fstg{transition:opacity .5s ease}
.flowanim.playing .fstg{opacity:0}
.flowanim.playing .fstg.on{opacity:1}
.flowanim .fline{stroke-dasharray:600;stroke-dashoffset:0;transition:stroke-dashoffset .8s ease,opacity .2s}
.flowanim.playing .fline{stroke-dashoffset:600}
.flowanim.playing .fline.on{stroke-dashoffset:0}
.flow-legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font-size:12.5px;color:var(--text);margin:10px 0 0}
.flow-legend .lg{display:inline-block;width:18px;height:12px;border-radius:3px;margin-right:-8px;vertical-align:middle}
.lg.given{background:#2b2e35;border:1.5px solid #9a978f}.lg.derived{background:#2e2618;border:2px solid #c99a52}.lg.answer{background:linear-gradient(#f3d9a8,#c99a52)}.lg.chain{background:#c99a52;border-radius:6px;width:24px}
.flow-replay{margin-top:10px;font-family:var(--f-sans);font-weight:700;font-size:12px;letter-spacing:.06em;border:1px solid var(--wine-dark);background:#fff;color:var(--wine-dark);border-radius:3px;padding:8px 14px;cursor:pointer}
.flow-replay:hover{background:var(--wine-dark);color:#fff}

/* step-by-step demo (tab 2) */
.demo{max-width:var(--measure);margin:0 auto;background:var(--paper);border:1px solid rgba(176,141,87,.3);border-radius:6px;box-shadow:0 6px 20px rgba(15,17,21,.08);overflow:hidden;position:relative}
.demo::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent,#8a6532 18%,#b08d57 35%,#d4ad7e 50%,#b08d57 65%,#8a6532 82%,transparent)}
.demo-head{padding:20px 20px 14px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.demo-head .q{font-family:var(--f-serif);font-size:15px;color:var(--wine-dark);line-height:1.8}
.fig{background:#fff;padding:4px;border-bottom:1px solid var(--line)}
.fig svg{display:block;width:100%;height:auto;max-width:100%}
.step-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;min-height:200px}
.chain{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-weight:700;font-size:13px}
.chip{padding:3px 10px;border-radius:999px}
.chip.n{background:var(--blue-wash);color:var(--blue)}
.chip.r{background:var(--ochre-wash);color:var(--ochre)}
.arrow{color:var(--muted)}
.chain-id{font-family:var(--f-mono);font-size:11px;color:var(--gold-ink);margin-left:auto}
#c-ja{font-size:11.5px;color:var(--muted)}
#c-text{font-size:14px;color:var(--text);line-height:1.9}
.eq{font-family:var(--f-mono);font-size:13px;background:var(--cream);border:1px solid var(--line);border-radius:4px;padding:8px 12px;white-space:pre-wrap;overflow-x:auto;color:var(--wine-dark)}
.controls{display:flex;align-items:center;gap:8px;padding:0 20px 18px;flex-wrap:wrap}
.controls button{font-family:var(--f-sans);font-weight:700;font-size:12px;letter-spacing:.06em;border:1px solid var(--wine-dark);background:#fff;color:var(--wine-dark);border-radius:3px;padding:8px 14px;cursor:pointer}
.controls button.primary{background:var(--wine-dark);color:#fff}
.controls button.primary:hover{background:var(--gold);border-color:var(--gold)}
.controls button:disabled{opacity:.35;cursor:default}
.dots{display:flex;gap:6px;margin-left:auto}
.dots button{width:30px;height:30px;padding:0;border-radius:50%;font-family:Georgia,serif;font-size:13px}
.dots button[aria-current="step"]{background:var(--wine);border-color:var(--wine);color:var(--gold-light)}
.demo-foot{font-size:13px;color:var(--muted);padding:0 20px 16px;line-height:1.7}
@media (prefers-reduced-motion:no-preference){
  .fig svg .stage-in{animation:draw .5s ease-out both}
  @keyframes draw{from{opacity:.25}to{opacity:1}}
}

/* animation (tab 3) */
.anim-frame{position:relative;width:100%;aspect-ratio:16/11;border-radius:6px;overflow:hidden;background:#111315;box-shadow:0 10px 30px rgba(15,17,21,.25)}
.anim-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.anim-cap{font-size:12.5px;color:var(--muted);margin-top:8px}
.anim-cap a{color:var(--gold-ink);font-weight:700;margin-left:6px}

/* track record */
.track{max-width:var(--measure);margin:0 auto;display:flex;flex-direction:column;gap:22px}
.track-group .tag{display:block;margin-bottom:8px}
.track-note{font-size:13px;color:var(--muted);line-height:1.8;margin:0 0 10px}
.results{max-width:var(--measure);margin:0 auto;list-style:none;padding:0;display:flex;flex-direction:column;background:#fff;border:1px solid rgba(176,141,87,.3);border-radius:6px}
.results li{padding:14px 18px;border-bottom:1px solid var(--line);font-size:15px;color:var(--wine-dark);font-family:var(--f-serif);line-height:1.7}
.results li:last-child{border-bottom:none}
.results li span{display:block;font-family:var(--f-sans);font-size:13px;color:var(--muted)}
.results li.key{background:var(--wine);color:#fff;border-bottom-color:var(--wine)}
.results li.key span{color:rgba(255,255,255,.75)}

/* footer cta */
.footer-cta{background:var(--wine-dark);padding:56px max(24px,calc((100% - var(--measure))/2));position:relative;overflow:hidden;box-shadow:inset 0 10px 36px rgba(0,0,0,.35)}
.footer-cta > *{position:relative}
.rule{width:32px;height:1px;background:var(--gold);margin:0 0 18px}
.footer-cta h2{font-family:var(--f-serif);font-size:clamp(18px,4.4vw,24px);color:#fff;font-weight:600;letter-spacing:.06em;line-height:1.6;margin-bottom:12px}
.footer-cta p{font-size:12.5px;color:rgba(255,255,255,.82);letter-spacing:.04em;line-height:1.95;max-width:520px;margin:0 0 22px}
.mail-cta{display:flex;flex-direction:column;align-items:flex-start;gap:12px;max-width:var(--measure);margin:4px auto 0}
.mail-btn{display:inline-flex;align-items:center;gap:10px;background:var(--gold);color:#fff;font-weight:700;font-size:16px;letter-spacing:.06em;padding:16px 28px;border-radius:4px;text-shadow:0 1px 2px rgba(0,0,0,.25);box-shadow:0 8px 24px rgba(0,0,0,.35);transition:background .2s,transform .2s}
.mail-btn:hover{background:var(--gold-light);transform:translateY(-2px)}
.mail-sub{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.mail-addr{font-family:var(--f-mono);font-size:15px;color:#fff;user-select:all;word-break:break-all}
.mail-sub button{background:transparent;border:1px solid rgba(212,173,126,.6);color:var(--gold-light);font-size:12px;font-weight:700;letter-spacing:.06em;padding:6px 12px;border-radius:3px;cursor:pointer}
.mail-sub button:hover{background:rgba(212,173,126,.12)}
.footer-cta p.mail-msg{font-size:11.5px;margin:0;min-height:1.2em;color:var(--gold-light)}
.foot{background:var(--wine-deep);color:rgba(255,255,255,.5);font-size:11px;letter-spacing:.06em;padding:22px 20px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.foot .logo{font-size:14px;color:rgba(255,255,255,.85)}

@media (max-width:600px){
  .topnav nav a:not(.cta){display:none}
  section{padding:44px 16px}
}

/* ===== 2026-10-16 追加: 構造解析サイト用の部品 ===== */

/* sub-page crumb */
.crumb{max-width:var(--measure);margin:0 auto;padding:14px 20px 0;font-size:12.5px;color:var(--muted);letter-spacing:.04em}
.crumb a{color:var(--gold-ink);font-weight:700}
.crumb a:hover{text-decoration:underline}
.crumb span{margin:0 6px;color:rgba(28,31,37,.35)}

/* hero band (text-only hero) */
.hero-band{background:var(--wine-dark);padding:56px max(24px,calc((100% - var(--measure))/2)) 48px;position:relative;overflow:hidden;box-shadow:inset 0 -16px 40px rgba(0,0,0,.5)}
.hero-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.05) 36px,rgba(176,141,87,.05) 37px);pointer-events:none}
.hero-band::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(176,141,87,.12),transparent 60%);pointer-events:none}
.hero-band > *{position:relative;z-index:1}
.hero-band .eyebrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:11px;letter-spacing:.28em;color:var(--gold-light);font-weight:700;margin-bottom:18px}
.hero-band h1{font-family:var(--f-serif);font-size:clamp(23px,5.4vw,32px);font-weight:600;color:#fff;line-height:1.6;letter-spacing:.06em;margin-bottom:16px;max-width:var(--measure)}
.hero-band h1 .accent{color:var(--gold-light)}
.hero-band p.lead{font-family:var(--f-serif);font-size:clamp(14.5px,3.6vw,16.5px);color:rgba(255,255,255,.86);line-height:2;letter-spacing:.04em;max-width:560px;margin:0 0 26px}
.hero-band .cta-row{margin-top:4px}

/* status pill */
.status{display:inline-block;font-size:10.5px;letter-spacing:.14em;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid currentColor;line-height:1.4;white-space:nowrap}
.status.proto{color:#e0b878}
.status.done{color:#9fd8b4}
.status.review{color:#a9cdeb}
.on-light .status.proto,.status.on-light.proto{color:#8a5f1f}
.on-light .status.done,.status.on-light.done{color:#2f7a4c}
.on-light .status.review,.status.on-light.review{color:#2a5f86}

/* chain illustration (hero / what we do) */
.chain-demo{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 26px;font-weight:700;font-size:14px}
.chain-demo .chip{padding:6px 14px;font-size:14px}
.chain-demo .arrow{color:var(--gold-light);font-size:18px}
.chain-demo .is{font-family:var(--f-serif);font-weight:600;color:rgba(255,255,255,.8);font-size:13px;letter-spacing:.08em;margin-left:4px}
.chain-demo .is b{color:var(--gold-light);font-family:var(--f-mono);font-weight:600}

/* three facets: 着眼・操作・導出 */
.facets{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:10px;list-style:none;padding:0}
@media(min-width:560px){.facets{grid-template-columns:repeat(3,minmax(0,1fr))}}
.facets li{background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:16px 16px 14px;display:flex;flex-direction:column;gap:4px}
.facets .k{font-family:Georgia,serif;font-size:11px;letter-spacing:.22em;color:var(--gold-ink);font-weight:700}
.facets h4{font-family:var(--f-serif);font-size:17px;font-weight:600;color:var(--wine-dark)}
.facets p{font-size:13.5px;color:var(--muted);line-height:1.85}

/* mini info-flow (top page) */
.mini-flow{max-width:var(--measure);margin:14px auto 0;background:#0f1115;border-radius:6px;padding:6px 10px}
.mini-flow svg{display:block;width:100%;height:auto}

/* example cards (fields) */
.cases{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:18px}
.case-card{background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 4px 14px rgba(15,17,21,.05);transition:box-shadow .2s,transform .2s}
.case-card:hover{box-shadow:0 10px 28px rgba(15,17,21,.12);transform:translateY(-2px)}
.case-card .prev{background:#0f1115;border-bottom:1px solid rgba(176,141,87,.35)}
.case-card .prev svg{display:block;width:100%;height:auto}
.case-card .body{padding:18px 18px 16px;display:flex;flex-direction:column;gap:8px}
.case-card .head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.case-card .num{font-family:Georgia,serif;font-size:11px;letter-spacing:.22em;color:var(--muted);font-weight:700}
.case-card h3{font-family:var(--f-serif);font-size:20px;font-weight:600;color:var(--wine-dark);letter-spacing:.04em}
.case-card p{font-size:13.5px;color:var(--text);line-height:1.85}
.case-card .meta{font-size:12px;color:var(--muted);line-height:1.7}
.case-card .go{align-self:flex-start;margin-top:4px;font-size:13px;font-weight:700;color:var(--gold-ink)}
.case-card .go::after{content:" ›"}

/* chain definition card */
.chaindef{max-width:var(--measure);margin:0 auto 12px;background:#fff;border:1px solid rgba(176,141,87,.45);border-radius:6px;overflow:hidden}
.chaindef .cd-name{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:11px 16px;background:var(--wine);color:var(--gold-light);font-family:var(--f-serif);font-size:15px;font-weight:600;letter-spacing:.03em}
.chaindef .cd-id{font-family:var(--f-mono);font-size:11px;color:rgba(255,255,255,.7);letter-spacing:.06em}
.chaindef dl{margin:0;padding:8px 16px 12px;display:grid;grid-template-columns:76px minmax(0,1fr);gap:6px 12px;font-size:13.5px}
.chaindef dt{color:var(--gold-ink);font-weight:700;font-size:12px;letter-spacing:.06em;padding-top:3px}
.chaindef dd{margin:0;color:var(--text);line-height:1.8}
.chaindef.cand .cd-name{background:#fff;color:var(--wine-dark);border-bottom:1px dashed rgba(176,141,87,.7)}
.chaindef.cand .cd-id{color:var(--gold-ink)}
.chaindef.cand{border-style:dashed}

/* case record (common fields for every example) */
.record{max-width:var(--measure);margin:0 auto 14px;background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:4px 18px 6px}
.record dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr)}
.record dt{font-size:11.5px;letter-spacing:.08em;color:var(--gold-ink);font-weight:700;padding:11px 0 2px}
.record dd{margin:0;font-size:13.5px;color:var(--text);line-height:1.8;padding:0 0 11px;border-bottom:1px solid var(--line)}
.record dd:last-of-type{border-bottom:none}
.record dd a{color:var(--gold-ink);font-weight:700;word-break:break-all}
.record dd a:hover{text-decoration:underline}
@media(min-width:540px){
  .record dl{grid-template-columns:168px minmax(0,1fr)}
  .record dt{padding:11px 0;border-bottom:1px solid var(--line)}
  .record dd{padding:11px 0}
  .record dt:last-of-type{border-bottom:none}
}

/* flow explanation rows (着眼・操作・導出) */
.flowsteps{max-width:var(--measure);margin:14px auto 0;list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}
.flowsteps li{background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:12px 16px;display:grid;grid-template-columns:28px minmax(0,1fr);gap:4px 12px;font-size:13.5px;line-height:1.75}
.flowsteps .n{font-family:Georgia,serif;font-size:18px;color:var(--gold);line-height:1.2;grid-row:span 3}
.flowsteps b{color:var(--gold-ink);font-size:12px;letter-spacing:.08em;margin-right:8px}
.flowsteps span{color:var(--text)}

/* legal flow */
.lflow{max-width:var(--page);margin:0 -20px 8px;background:#0f1115;border:1px solid #0f1115;overflow-x:auto;-webkit-overflow-scrolling:touch}
@media(min-width:800px){.lflow{margin:0 auto 8px;border-radius:6px}}
@media (max-width:600px){.lflow{margin:0 -16px 8px}}
.lflow svg{display:block;width:100%;height:auto;min-width:720px}
.scroll-hint{display:none;font-size:12px;color:var(--muted);margin:6px 0 0}
.scroll-hint.show{display:block}
.lg.rule{background:#1f2a38;border:2px solid #7fb0d6}
.lg.op{background:transparent;border:1.5px dashed #e0b878;border-radius:6px;width:24px}

/* note box */
.note-box{max-width:var(--measure);margin:18px auto 0;background:#fff;border-left:4px solid var(--gold);padding:14px 18px;font-size:13.5px;color:var(--text);line-height:1.85;box-shadow:0 4px 14px rgba(15,17,21,.05)}
.note-box b{color:var(--wine-dark)}

/* plain bullet list in reading column */
.plain{max-width:var(--measure);margin:0 auto;padding-left:1.3em;font-size:14.5px;color:var(--text);line-height:1.95}
.plain li{margin-bottom:4px}

/* source box */
.source{max-width:var(--measure);margin:0 auto;background:#fff;border:1px solid rgba(28,31,37,.16);border-radius:6px;padding:14px 18px;font-size:13.5px;color:var(--text);line-height:1.85}
.source .tag{display:block;margin-bottom:6px}
.source a{color:var(--gold-ink);font-weight:700;word-break:break-all}
.source a:hover{text-decoration:underline}

/* bottom nav between field pages */
.pager{max-width:var(--measure);margin:0 auto;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:0 20px 44px;font-size:13.5px;font-weight:700}
.pager a{color:var(--gold-ink)}
.pager a:hover{text-decoration:underline}

/* legend swatch must not inherit the .answer box padding */
.flow-legend .lg.answer{padding:0;margin:0 -8px 0 0;max-width:none;border-radius:3px}

/* ===== 2026-10-17 追加: 多ページ化（Home / 固定ページ / Blog） ===== */
main{display:block}
.proto-bar{background:#f3e7d3;color:#7d5a2a;font-size:11px;letter-spacing:.14em;text-align:center;padding:5px 10px;font-weight:700}
.menu-btn{display:none;background:none;border:1px solid rgba(28,31,37,.25);border-radius:3px;width:38px;height:34px;padding:6px 8px;cursor:pointer;flex-direction:column;justify-content:space-between}
.menu-btn span{display:block;height:2px;background:var(--wine-dark)}
.mobile-nav{display:flex;flex-direction:column;background:#fff;border-bottom:1px solid var(--line)}
.mobile-nav a{padding:12px 18px;font-size:14px;font-weight:600;border-top:1px solid var(--line);color:var(--wine-dark)}
.mobile-nav a.cta{background:var(--wine-dark);color:#fff}
.topnav nav a[aria-current="page"]{color:var(--gold);border-bottom:2px solid var(--gold)}
@media(max-width:640px){.topnav nav{display:none}.menu-btn{display:flex}}
@media(min-width:641px){.mobile-nav{display:none!important}}
.foot{align-items:center}
.foot-nav{display:flex;gap:12px;flex-wrap:wrap}
.foot-nav a{color:rgba(255,255,255,.7);font-size:11px}
.foot-nav a:hover{color:#fff}
.crumb{font-size:12px;padding-top:12px}
.hero-band h1 .en{font-family:Georgia,serif;font-size:.6em;color:var(--gold-light);letter-spacing:.12em;margin-left:8px}
.hero-band .eyebrow a{color:inherit}
.hero-band .eyebrow a:hover{text-decoration:underline}
.art-hero .eyebrow .status{margin-left:6px}
.art-date{font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:.04em}
.notice{max-width:var(--measure);margin:18px auto 0;padding:10px 20px;font-size:12.5px;color:#7d5a2a;background:#f3e7d3;border-left:4px solid var(--gold);line-height:1.7}
.viewbar{max-width:var(--measure);margin:22px auto 0;padding:0 20px;display:flex;gap:6px;flex-wrap:wrap}
.viewbar button{font-family:var(--f-sans);font-size:12.5px;font-weight:700;letter-spacing:.04em;padding:8px 14px;border-radius:3px;border:1px solid var(--wine-dark);background:#fff;color:var(--wine-dark);cursor:pointer}
.viewbar button[aria-selected="true"]{background:var(--wine-dark);color:#fff}
.art-sec{padding:40px 20px}
.art-sec .sec-head{margin-bottom:18px}
.art-body{max-width:var(--measure);margin:0 auto;font-size:15px;line-height:1.95;color:var(--text)}
.art-body p{margin:0 0 12px}
.art-body ul,.art-body ol{margin:0 0 12px;padding-left:1.4em}
.art-body .small,.small{font-size:12.5px;color:var(--muted)}
.small-note{font-size:11.5px;color:#7d5a2a;letter-spacing:.06em;margin:0 0 6px!important}
.source-line{font-size:14px;color:var(--text)}
.links{list-style:none;padding:0!important;margin:8px 0 0!important}
.links li{display:inline-block;margin:0 10px 6px 0}
.links a{font-size:13px;color:var(--gold-ink);font-weight:700;border-bottom:1px solid rgba(125,90,42,.4)}
.reason{background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px;padding:18px 20px;margin:0 0 12px}
.reason h3{font-family:var(--f-serif);font-size:16.5px;font-weight:600;color:var(--wine-dark);margin:0 0 8px}
.reason p{font-size:14.5px}
.reason strong{color:var(--wine-dark);font-family:var(--f-mono);font-weight:600;font-size:.95em}
.math{font-family:var(--f-mono);font-size:.95em;color:var(--wine-dark);background:var(--cream);padding:0 4px;border-radius:3px}
pre.eq{margin:8px 0 12px}
.part-fig{margin:10px 0 0;background:#fff;border:1px solid var(--line);border-radius:6px;padding:6px}
.part-fig img{display:block;width:100%;height:auto}
.steps2 li{align-items:flex-start}
.stepbox{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}
.stepbox h4{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--wine-dark);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.stepbox > div{display:grid;grid-template-columns:72px minmax(0,1fr);gap:8px;font-size:13.5px;line-height:1.8}
.stepbox > div b{font-size:10.5px;letter-spacing:.14em;color:var(--gold-ink);padding-top:4px}
.stepbox .io span{color:var(--muted)}
.stepbox p{margin:0 0 6px}
.mono{font-family:var(--f-mono);font-size:12.5px}
.cd-kind{display:inline-block;font-size:10.5px;letter-spacing:.14em;color:#7d5a2a;font-weight:700;margin:4px 0 6px}
.chaindef.cand .cd-kind{color:#2a5f86}
.dialog{background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px 16px;margin-top:12px}
.dialog summary{cursor:pointer;font-weight:700;font-size:13.5px;color:var(--wine-dark)}
.msg{margin:10px 0;padding:10px 14px;border-radius:6px;font-size:13.5px;line-height:1.8}
.msg b{display:block;font-size:10.5px;letter-spacing:.16em;margin-bottom:4px}
.msg.l{background:var(--blue-wash)}.msg.l b{color:var(--blue)}
.msg.a{background:var(--cream);border:1px solid var(--line)}.msg.a b{color:var(--ochre)}
.msg p{margin:0 0 6px}
.flowimg{background:#fff;border:1px solid var(--line);border-radius:6px;overflow-x:auto;padding:8px}
.flowimg img{display:block;min-width:600px;width:100%;height:auto}
.obs li{margin-bottom:8px}
.techdl dt{font-size:10.5px;letter-spacing:.16em;color:var(--gold-ink);font-weight:700;margin-top:14px}
.techdl dd{margin:4px 0 0;font-size:14px}
.hashes{width:100%;border-collapse:collapse;font-size:12px}
.hashes td{padding:5px 6px;border-bottom:1px solid var(--line);vertical-align:top;word-break:break-all}
.outputs{list-style:none;padding:0!important;margin:0!important;background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px}
.outputs li{display:flex;flex-direction:column;gap:2px;padding:10px 16px;border-bottom:1px solid var(--line);font-size:14px}
.outputs li:last-child{border-bottom:none}
.outputs li span{font-size:12px;color:var(--muted)}
.outputs li.real a{color:var(--wine-dark);font-weight:700}
.outputs li.real a::before{content:"● ";color:#2f7a4c}
.outputs li.todo .lab{font-size:14px;color:var(--muted)}
.outputs li.todo .lab::before{content:"○ ";color:var(--gold)}
.lg.rule{background:#1f2a38;border:2px solid #7fb0d6}
/* post cards */
.post-grid{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.post-card{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px;padding:16px 18px;box-shadow:0 2px 8px rgba(15,17,21,.04);transition:.15s}
.post-card:hover{border-color:var(--gold);box-shadow:0 8px 20px rgba(15,17,21,.08)}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:11.5px;color:var(--muted)}
.post-meta .dom{font-size:10.5px;letter-spacing:.16em;color:#fff;background:var(--wine);padding:2px 8px;border-radius:2px;font-weight:700}
.post-card h3{font-family:var(--f-serif);font-size:16.5px;font-weight:600;color:var(--wine-dark);line-height:1.6}
.post-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.dom-grid{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(max-width:460px){.dom-grid{grid-template-columns:minmax(0,1fr)}}
.dom-card{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px;padding:16px 16px 14px;transition:.15s}
.dom-card:hover{border-color:var(--gold)}
.dom-en{font-family:Georgia,serif;font-size:10.5px;letter-spacing:.2em;color:var(--gold)}
.dom-card h3{font-family:var(--f-serif);font-size:18px;font-weight:600;color:var(--wine-dark)}
.dom-card p{font-size:12.5px;color:var(--muted);line-height:1.75;flex:1}
.dom-count{font-size:12px;font-weight:700;color:var(--gold-ink);margin-top:6px}
.more-link{max-width:var(--measure);margin:18px auto 0;font-size:14px;font-weight:700}
.more-link a{color:var(--gold-ink)}
/* prose (perspectives) */
.prose{font-size:15.5px;line-height:2}
.prose h2{font-family:var(--f-serif);font-size:19px;font-weight:600;color:var(--wine-dark);margin:34px 0 10px;padding-top:12px;border-top:1px solid var(--line)}
.prose h3{font-family:var(--f-serif);font-size:16px;font-weight:600;color:var(--gold-ink);margin:22px 0 6px}
.prose blockquote{margin:16px 0;padding:12px 18px;border-left:4px solid var(--gold);background:#fff;font-family:var(--f-serif);color:var(--wine-dark)}
.prose blockquote p{margin:0}
.prose .fig-note{font-size:12.5px;color:var(--muted);background:var(--gray);padding:8px 12px;border-radius:4px}
/* home */
.pillars{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:10px;list-style:none;padding:0}
@media(min-width:560px){.pillars{grid-template-columns:repeat(2,minmax(0,1fr))}}
.pillars li{background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px;padding:14px 16px}
.pillars li b{display:block;font-family:var(--f-serif);font-size:15px;color:var(--wine-dark);font-weight:600;margin-bottom:2px}
.pillars li span{font-size:13px;color:var(--muted);line-height:1.75}
.pillars li .ok{font-size:10px;letter-spacing:.16em;color:#2f7a4c;font-weight:700;display:block;margin-bottom:4px}
.pillars li .maybe{font-size:10px;letter-spacing:.16em;color:#8a5f1f;font-weight:700;display:block;margin-bottom:4px}
.page-links{max-width:var(--measure);margin:16px auto 0;display:flex;gap:10px;flex-wrap:wrap}
.page-links a{font-size:13px;font-weight:700;color:var(--wine-dark);border:1px solid var(--wine-dark);padding:8px 14px;border-radius:3px}
.page-links a:hover{background:var(--wine-dark);color:#fff}
.deftable{max-width:var(--measure);margin:0 auto;width:100%;border-collapse:collapse;font-size:13.5px;background:#fff;border:1px solid rgba(28,31,37,.14)}
.deftable th,.deftable td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.7}
.deftable th{font-family:var(--f-mono);font-size:12px;color:var(--gold-ink);white-space:nowrap;font-weight:600;width:34%}
.deftable tr:last-child th,.deftable tr:last-child td{border-bottom:none}
.compare{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px}
@media(max-width:480px){.compare{grid-template-columns:minmax(0,1fr)}}
.compare div{background:#fff;border:1px solid rgba(28,31,37,.14);border-radius:6px;padding:14px 16px;font-size:13.5px;line-height:1.8;color:var(--text)}
.compare div h4{font-family:var(--f-serif);font-size:15px;font-weight:600;color:var(--wine-dark);margin-bottom:4px}
.compare div.hi{background:#f3e7d3;border-color:rgba(176,141,87,.4)}
.sec-note a,.sub-note a,.art-body a{color:var(--gold-ink);font-weight:700}
.art-body a:hover,.sec-note a:hover{text-decoration:underline}
.flow-legend .lg{box-sizing:border-box;height:12px}

/* ===== 2026-10-17 仕上げ: コントラストと余白の調整（配色・構成は維持） ===== */
:root{--cream:#faf8f4;--gray:#efece6;--line:#e3ded4;--muted:#5b6370;--text:#2a2f38;--gold-ink:#8a6430}
html{background:#dedad2}
body{box-shadow:0 0 80px rgba(15,17,21,.22)}
/* nav: 少し高く、文字をくっきり */
.topnav{background:rgba(255,255,255,.96);border-bottom:1px solid rgba(28,31,37,.1);box-shadow:0 1px 0 rgba(255,255,255,.6),0 6px 20px rgba(13,31,58,.07)}
.topnav nav a{font-size:12.5px;letter-spacing:.1em;padding:6px 0;border-bottom:2px solid transparent}
.topnav nav a:hover{color:var(--gold-ink)}
.topnav nav a[aria-current="page"]{color:var(--gold-ink);border-bottom-color:var(--gold)}
.topnav nav a.cta{border-bottom:none;padding:8px 16px;letter-spacing:.08em;box-shadow:0 4px 12px rgba(15,17,21,.18)}
.proto-bar{background:linear-gradient(90deg,#f7ead3,#f0dcb6 50%,#f7ead3);color:#6f4e1f;border-bottom:1px solid rgba(176,141,87,.35)}
/* hero: 奥行きと文字の階調 */
.hero-band{padding:64px max(24px,calc((100% - var(--measure))/2)) 56px;background:radial-gradient(1200px 600px at 10% -20%,rgba(176,141,87,.22),transparent 60%),linear-gradient(180deg,#14161b 0%,#0f1115 70%,#0b0c0f 100%)}
.hero-band::before{background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.06) 36px,rgba(176,141,87,.06) 37px)}
.hero-band::after{background:radial-gradient(ellipse at 80% 110%,rgba(212,173,126,.12),transparent 55%)}
.hero-band .eyebrow{color:rgba(224,184,120,.9);letter-spacing:.32em}
.hero-band .eyebrow::before{content:"";display:inline-block;width:22px;height:1px;background:var(--gold);margin-right:4px;vertical-align:middle}
.hero-band h1{font-size:clamp(26px,5.8vw,36px);line-height:1.5;letter-spacing:.04em;text-shadow:0 2px 24px rgba(0,0,0,.4)}
.hero-band p.lead{color:rgba(255,255,255,.8);font-size:clamp(14.5px,3.6vw,16px);line-height:2.05}
.chain-demo .chip.n{background:rgba(228,240,247,.95);color:#1f5f85}
.chain-demo .chip.r{background:rgba(246,236,220,.95);color:#7d4f0a}
.chain-demo .chip{box-shadow:0 2px 10px rgba(0,0,0,.25)}
.btn{border-radius:3px;letter-spacing:.1em}
.btn-gold{background:linear-gradient(180deg,#c49e66,#a8844f);box-shadow:0 6px 18px rgba(176,141,87,.35)}
.btn-gold:hover{background:linear-gradient(180deg,#d4ad7e,#b08d57);transform:translateY(-1px)}
.btn-line{border-color:rgba(212,173,126,.75)}
/* sections: 余白と見出し */
section{padding:60px 20px}
section.bg-gray{background:linear-gradient(180deg,#f1eee8,#ebe7df);box-shadow:inset 0 1px 0 rgba(255,255,255,.8),inset 0 -1px 0 rgba(28,31,37,.06)}
.sec-head{margin-bottom:34px}
.sec-label{font-size:10.5px;letter-spacing:.3em;padding:6px 12px;border-radius:2px}
.sec-title{font-size:clamp(22px,5vw,30px);line-height:1.5;letter-spacing:.04em}
.sec-title::after{width:44px;height:2px;margin-top:14px}
.sec-note{color:var(--text);font-size:14.5px}
.sub-head{font-size:17px;margin-top:44px;padding-left:12px;border-left:3px solid var(--gold)}
/* cards: 枠線を薄く、影で浮かせる */
.pillars li,.facets li,.levels li,.post-card,.dom-card,.compare div,.reason,.stats li,.crit li,.tools li,.pri,.results,.outputs,.readmore ul,.chaindef,.record{border-color:rgba(28,31,37,.08);border-radius:8px;box-shadow:0 1px 2px rgba(15,17,21,.04),0 10px 24px -14px rgba(15,17,21,.18)}
.post-card:hover,.dom-card:hover{transform:translateY(-2px);border-color:rgba(176,141,87,.6);box-shadow:0 2px 4px rgba(15,17,21,.05),0 18px 34px -16px rgba(15,17,21,.28)}
.pillars li{padding:18px 18px 16px;position:relative;overflow:hidden}
.pillars li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--gold-light),var(--gold))}
.pillars li b{font-size:16px;margin-bottom:4px}
.pillars li span{font-size:13.5px;line-height:1.8}
.pillars li .ok,.pillars li .maybe{display:inline-block;padding:2px 8px;border-radius:999px;font-size:9.5px;letter-spacing:.18em;margin-bottom:8px}
.pillars li .ok{background:#e5f3ea;color:#256c42}
.pillars li .maybe{background:#f6ecdc;color:#7d4f0a}
.facets li{padding:20px 18px 18px;background:linear-gradient(180deg,#fff,#fbfaf7)}
.facets .k{font-size:10px}
.facets h4{font-size:18px;margin:4px 0 2px}
.levels li{padding:16px 18px;background:linear-gradient(180deg,#fff,#fbfaf7)}
.levels .lv{width:34px;height:34px;background:linear-gradient(180deg,#2a2e36,#15181d);box-shadow:0 4px 10px rgba(15,17,21,.25)}
.compare div{padding:18px 18px 16px;line-height:1.85}
.compare div.hi{background:linear-gradient(180deg,#f7ead3,#f1dfc0);border-color:rgba(176,141,87,.35)}
.compare div h4{font-size:16px;margin-bottom:6px}
.example{background:#fff;border:1px solid rgba(28,31,37,.08);border-radius:8px;padding:10px 14px;box-shadow:0 1px 2px rgba(15,17,21,.04)}
.example span{border-radius:999px;padding:3px 10px}
/* dark bands */
.global,.footer-cta{background:linear-gradient(180deg,#14161b,#0b0c0f)}
.thesis{background:linear-gradient(180deg,#1f232a,#171a20)}
/* post / domain cards */
.post-card{padding:18px 20px 16px}
.post-card h3{font-size:17px}
.post-meta time{font-family:var(--f-mono);font-size:11px;letter-spacing:.04em;color:#8a8f98}
.post-meta .dom{border-radius:999px;padding:2px 10px}
.dom-card{padding:18px 18px 16px;background:linear-gradient(180deg,#fff,#fbfaf7)}
.dom-card h3{font-size:19px}
.dom-count{margin-top:8px}
.status{font-size:10px;letter-spacing:.16em;padding:3px 10px}
.status.on-light.done,.on-light .status.done{background:#e5f3ea;border-color:transparent}
.status.on-light.review,.on-light .status.review{background:#e4f0f7;border-color:transparent}
.status.on-light.proto,.on-light .status.proto{background:#f6ecdc;border-color:transparent}
/* page links */
.page-links a{border-radius:999px;padding:9px 18px;letter-spacing:.06em;border-color:rgba(28,31,37,.35);background:#fff}
.page-links a:hover{border-color:var(--wine-dark)}
.global .page-links a{background:transparent}
/* article */
.viewbar{margin-top:26px}
.viewbar button{border-radius:999px;padding:8px 16px;border-color:rgba(28,31,37,.3)}
.viewbar button[aria-selected="true"]{box-shadow:0 4px 12px rgba(15,17,21,.2)}
.notice{border-radius:0 8px 8px 0}
.art-sec{padding:48px 20px}
.reason{padding:20px 22px;background:linear-gradient(180deg,#fff,#fcfbf8)}
.reason h3{font-size:17px;padding-bottom:8px;border-bottom:1px solid var(--line);margin-bottom:12px}
.chaindef .cd-name{border-radius:8px 8px 0 0}
.flowimg,.part-fig,.dialog{border-radius:8px;border-color:rgba(28,31,37,.08)}
.techdl dd{font-size:14px}
.flowsteps li{border-radius:8px;border-color:rgba(28,31,37,.08);box-shadow:0 1px 2px rgba(15,17,21,.04),0 10px 24px -14px rgba(15,17,21,.18)}
/* gallery */
.gal-tabs button{border-radius:999px;border-color:rgba(28,31,37,.3)}
.gal-tabs button[aria-selected="true"]{box-shadow:0 4px 12px rgba(15,17,21,.2)}
.demo,.flowchart,.anim-frame{border-radius:8px}
/* footer */
.foot{padding:28px 20px;background:linear-gradient(180deg,#0b0c0f,#07080a)}
.foot .logo{letter-spacing:.08em}
/* crumb */
.crumb{padding-top:14px;letter-spacing:.06em}

/* ===== 2026-10-17 明るい基調（暗い帯を生成り・白に。金と墨色は差し色として残す） ===== */
html{background:#e9e5dd}
body{background:#fbfaf7}
.hero-band{background:radial-gradient(900px 500px at 8% -10%,rgba(212,173,126,.35),transparent 60%),radial-gradient(700px 400px at 95% 110%,rgba(176,141,87,.18),transparent 55%),linear-gradient(180deg,#ffffff 0%,#f6f1e8 100%);box-shadow:inset 0 -1px 0 rgba(28,31,37,.08);border-bottom:1px solid rgba(176,141,87,.25)}
.hero-band::before{background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.07) 36px,rgba(176,141,87,.07) 37px)}
.hero-band::after{background:none}
.hero-band .eyebrow{color:var(--gold-ink)}
.hero-band .eyebrow::before{background:var(--gold-ink)}
.hero-band h1{color:var(--wine-dark);text-shadow:none}
.hero-band h1 .accent{color:var(--gold-ink)}
.hero-band p.lead{color:var(--text)}
.hero-band .eyebrow a{color:var(--gold-ink)}
.hero-band .en{color:var(--gold-ink)}
.art-date{color:var(--muted)}
.hero-band .status.proto{color:#8a5f1f;background:#f6ecdc;border-color:transparent}
.hero-band .status.done{color:#2f7a4c;background:#e5f3ea;border-color:transparent}
.hero-band .status.review{color:#2a5f86;background:#e4f0f7;border-color:transparent}
.chain-demo .is{color:var(--muted)}
.chain-demo .is b{color:var(--gold-ink)}
.chain-demo .chip{box-shadow:0 2px 8px rgba(15,17,21,.1)}
.btn-line{border-color:var(--wine-dark);color:var(--wine-dark)}
.btn-line:hover{background:var(--wine-dark);color:#fff}
/* dark bands → light */
.global{background:linear-gradient(180deg,#f6f1e8,#f1ebdf);box-shadow:inset 0 1px 0 rgba(255,255,255,.8),inset 0 -1px 0 rgba(28,31,37,.06)}
.global::before{background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.07) 36px,rgba(176,141,87,.07) 37px)}
.global .sec-title{color:var(--wine-dark)}
.global .sec-title .accent{color:var(--gold-ink)}
.global .sec-note{color:var(--text)}
.stats li{background:#fff;border-color:rgba(28,31,37,.08)}
.stats b{color:var(--gold-ink)}
.stats .stat-n{color:var(--muted)}
.stats h4{color:var(--wine-dark)}
.stats p{color:var(--text)}
.stats cite{color:var(--muted)}
.answer{background:#fff;color:var(--wine-dark);border:1px solid rgba(176,141,87,.4);border-left:4px solid var(--gold)}
.answer .tag{color:var(--gold-ink)}
.answer p em{color:var(--gold-ink)}
.global .page-links a{background:#fff;color:var(--wine-dark)!important;border-color:rgba(28,31,37,.35)!important}
.thesis{background:linear-gradient(180deg,#fff,#f6f1e8);color:var(--wine-dark);border-top:1px solid rgba(176,141,87,.25);border-bottom:1px solid rgba(176,141,87,.25)}
.thesis .tag{color:var(--gold-ink)}
.thesis em{color:var(--gold-ink)}
.thesis .readmore .tag{color:var(--gold-ink)}
.thesis .readmore ul{background:#fff;border-color:rgba(28,31,37,.1)}
.thesis .readmore li{border-color:var(--line)}
.thesis .readmore a{color:var(--wine-dark)}
.thesis .readmore a::after{color:var(--gold)}
.thesis .readmore a:hover{background:var(--gold-pale)}
.tc{background:#fff;border:1px solid rgba(28,31,37,.08);box-shadow:0 1px 2px rgba(15,17,21,.04),0 10px 24px -14px rgba(15,17,21,.18)}
.tc-k{color:var(--gold-ink)}
.tc h4{color:var(--wine-dark)}
.tc p{color:var(--muted)}
.split-col.think{background:#fff;border:1px solid rgba(176,141,87,.5);border-left:4px solid var(--gold)}
.split-col.think .k{color:var(--gold-ink)}
.split-col.think h4{color:var(--wine-dark)}
.split-col.think p{color:var(--muted)}
.results li.key{background:#f3e7d3;color:var(--wine-dark);border-bottom-color:rgba(176,141,87,.3)}
.results li.key span{color:var(--text)}
.tools li.core{background:#f3e7d3;border-color:rgba(176,141,87,.4)}
.tools li.core b{color:var(--gold-ink)}
.tools li.core span{color:var(--text)}
.levels .lv{background:linear-gradient(180deg,#d4ad7e,#b08d57);color:#fff}
.sec-label{background:#fff;color:var(--gold-ink);border:1px solid rgba(176,141,87,.45)}
.post-meta .dom{background:var(--gold-ink)}
.chaindef .cd-name{background:#f3e7d3;color:var(--wine-dark)}
.chaindef .cd-name .cd-id{color:var(--gold-ink)}
/* footer CTA → light, footer stays dark but softer */
.footer-cta{background:linear-gradient(180deg,#f6f1e8,#efe8dc);box-shadow:inset 0 1px 0 rgba(255,255,255,.8)}
.footer-cta::before{background:repeating-linear-gradient(-45deg,transparent,transparent 36px,rgba(176,141,87,.07) 36px,rgba(176,141,87,.07) 37px)}
.footer-cta h2{color:var(--wine-dark)}
.footer-cta h2 .accent{color:var(--gold-ink)}
.footer-cta p{color:var(--text)}
.mail-addr{color:var(--wine-dark)}
.mail-sub button{border-color:var(--wine-dark);color:var(--wine-dark)}
.mail-sub button:hover{background:var(--wine-dark);color:#fff}
.footer-cta p.mail-msg{color:var(--gold-ink)}
.foot{background:#1c1f25}
/* flow figures → light paper */
.flowchart,.flowchart.flowdark{background:#fff;border-color:rgba(28,31,37,.1)}
.flowanim rect[fill="#0f1115"]{fill:#fbfaf7}
.flowanim rect[fill="#2b2e35"]{fill:#fff;stroke:#9a978f}
.flowanim rect[fill="#2e2618"]{fill:#fbf3e4;stroke:#c99a52}
.flowanim text[fill="#ffffff"],.flowanim text[fill="#fff4e0"]{fill:#1c1f25}
.flowanim text[fill="#e0b878"]{fill:#7d5a2a}
.flowanim path[stroke="#e0b878"],.flowanim line[stroke="#e0b878"]{stroke:#b08d57}
.flowq{border-color:rgba(28,31,37,.1)}
.flow-legend .lg.given{background:#fff;border-color:#9a978f}
.flow-legend .lg.derived{background:#fbf3e4;border-color:#c99a52}
.lg.rule{background:#e4f0f7;border-color:#7fb0d6}
.lflow{background:#fff;border:1px solid rgba(28,31,37,.1);border-radius:8px}
.lflow svg{display:block}
.anim-frame{box-shadow:0 10px 30px rgba(15,17,21,.15)}

/* ===== hero image (2026-10-17) ===== */
.hero-photo{background:#eef0f3;line-height:0}
.hero-photo img{display:block;width:100%;height:auto}
.hero-band.hero-after{padding:36px max(24px,calc((100% - var(--measure))/2)) 44px;background:#fff;border-bottom:1px solid var(--line)}
.hero-band.hero-after::before,.hero-band.hero-after::after{display:none}
.hero-band.hero-after h1{font-size:clamp(20px,4.4vw,26px);margin-bottom:12px;color:#1a2433}
.hero-band.hero-after h1 .accent{color:#1a2433;border-bottom:2px solid var(--gold);padding-bottom:2px}
.hero-band.hero-after p.lead{font-size:15px;line-height:1.95;margin-bottom:20px}
.hero-band.hero-after .chain-demo{margin-bottom:22px}

/* 下層ページの画像は細い帯。英題が見える左寄せで切り抜く */
.hero-photo.slim{height:clamp(150px,26vw,220px);overflow:hidden;background:#dfe3e8}
.hero-photo.slim img{width:100%;height:100%;object-fit:cover;object-position:0% 42%}
.hero-photo.slim + .hero-band.hero-after{padding-top:28px;padding-bottom:36px}
.hero-photo.slim + .hero-band.hero-after h1{font-size:clamp(19px,4vw,24px)}

/* 斜線の地紋を全面で廃止（2026-10-17） */
.hero-band::before,.hero-band::after,.global::before,.footer-cta::before{display:none!important;background:none!important}
.hero-band{background:linear-gradient(180deg,#ffffff 0%,#f6f1e8 100%)}
.global{background:linear-gradient(180deg,#f6f1e8,#f1ebdf)}
.footer-cta{background:linear-gradient(180deg,#f6f1e8,#efe8dc)}

/* 背景のコントラストを強める（2026-10-17） */
html{background:#d9d3c8}
body{background:#ffffff;box-shadow:0 0 90px rgba(15,17,21,.28)}
section{background:#fff}
section.bg-gray,.global{background:linear-gradient(180deg,#ede7dc,#e4dccd);box-shadow:inset 0 1px 0 rgba(255,255,255,.9),inset 0 -1px 0 rgba(28,31,37,.08)}
.hero-band{background:linear-gradient(180deg,#f7f3ec 0%,#e9e1d2 100%);border-bottom:1px solid rgba(176,141,87,.35)}
.hero-band.hero-after{background:linear-gradient(180deg,#ffffff 0%,#f3eee4 100%)}
.thesis{background:linear-gradient(180deg,#f3ede2,#e9e1d2)}
.footer-cta{background:linear-gradient(180deg,#e9e1d2,#dcd2bf)}
.proto-bar{background:#e4c98f;color:#4a3414}
.topnav{background:rgba(255,255,255,.98)}
/* 色面の上のカードは白をはっきり */
section.bg-gray .pillars li,section.bg-gray .post-card,section.bg-gray .dom-card,section.bg-gray .facets li,section.bg-gray .levels li,section.bg-gray .compare div:not(.hi),section.bg-gray .tools li,section.bg-gray .pri,section.bg-gray .stats li,section.bg-gray .crit li,.global .stats li{background:#fff;box-shadow:0 2px 6px rgba(15,17,21,.06),0 14px 28px -16px rgba(15,17,21,.28)}
section.bg-gray .compare div.hi{background:#fff8ea}
.sec-label{background:#fff;border-color:rgba(176,141,87,.6)}
section.bg-gray .example{background:#fff}

/* 金色を強める（2026-10-18）: くすんだ金茶 → 明るい金 */
:root{--gold:#c9a227;--gold-light:#e6c454;--gold-ink:#8f6d12;--gold-pale:#fbf3d6}
.sec-title::after{background:linear-gradient(90deg,rgba(201,162,39,.2),#c9a227,rgba(201,162,39,.2))}
.btn-gold{background:linear-gradient(180deg,#d9b43a,#b8921f);box-shadow:0 6px 18px rgba(201,162,39,.4)}
.btn-gold:hover{background:linear-gradient(180deg,#e6c454,#c9a227)}
.mail-btn{background:linear-gradient(180deg,#d9b43a,#b8921f)}
.mail-btn:hover{background:linear-gradient(180deg,#e6c454,#c9a227)}
.pillars li::before{background:linear-gradient(180deg,#e6c454,#c9a227)}
.levels .lv{background:linear-gradient(180deg,#e6c454,#c9a227);color:#1a2433}
.sec-label{border-color:rgba(201,162,39,.7);color:#8f6d12}
.chaindef .cd-name{background:#fbf3d6}
.compare div.hi,section.bg-gray .compare div.hi{background:#fff8dc;border-color:rgba(201,162,39,.45)}
.pillars li .maybe{background:#fbf3d6;color:#8f6d12}
.status.on-light.proto,.on-light .status.proto,.hero-band .status.proto{background:#fbf3d6;color:#8f6d12}
.flow-legend .lg.derived,.flowanim rect[fill="#2e2618"]{background:#fff8dc;border-color:#c9a227}
.flowanim rect[fill="#2e2618"]{fill:#fff8dc;stroke:#c9a227}
.flowanim path[stroke="#e0b878"],.flowanim line[stroke="#e0b878"]{stroke:#c9a227}
.flowanim text[fill="#e0b878"]{fill:#8f6d12}
.hero-band .eyebrow{color:#8f6d12}
.hero-band .eyebrow::before{background:#c9a227}
.hero-band h1 .accent,.hero-band.hero-after h1 .accent{border-bottom-color:#c9a227}
.example span{background:#c9a227}
.rule{background:#c9a227}

/* ===== 2026-10-18 配色Bを本体に統合（白と紺） ===== */
/* 背景B — 白と淡い紺。連絡先の帯だけ濃紺で締める */
html{background:#c9d1dc}
body{background:#fff}
section.bg-gray,.global{background:#eaeff5;box-shadow:inset 0 1px 0 rgba(255,255,255,.9),inset 0 -1px 0 rgba(26,36,51,.08)}
.hero-band{background:#1a2433;border-bottom:none}
.hero-band h1,.hero-band p.lead,.hero-band .art-date{color:#fff}
.hero-band p.lead{color:rgba(255,255,255,.82)}
.hero-band h1 .accent{color:#e6c454}
.hero-band .eyebrow{color:#e6c454}
.hero-band .eyebrow a{color:#e6c454}
.hero-band .en{color:#e6c454}
.hero-band .btn-line{border-color:rgba(255,255,255,.6);color:#fff}
.hero-band.hero-after{background:#fff}
.hero-band.hero-after h1{color:#1a2433}
.hero-band.hero-after h1 .accent{color:#1a2433}
.hero-band.hero-after p.lead{color:#2a2f38}
.hero-band.hero-after .btn-line{border-color:#1a2433;color:#1a2433}
.thesis{background:#eaeff5;color:#1a2433;border-color:rgba(26,36,51,.1)}
.footer-cta{background:#1a2433}
.footer-cta h2{color:#fff}.footer-cta h2 .accent{color:#e6c454}
.footer-cta p{color:rgba(255,255,255,.82)}
.mail-addr{color:#fff}
.mail-sub button{border-color:rgba(255,255,255,.6);color:#fff}
.mail-sub button:hover{background:#fff;color:#1a2433}
.rule{background:#e6c454}
.proto-bar{background:#dde4ee;color:#334257;border-bottom:1px solid rgba(26,36,51,.1)}
.sec-title,.pillars li b,.post-card h3,.dom-card h3,.facets h4,.levels h4,.compare div h4{color:#1a2433}
.sec-label{background:#1a2433;color:#fff;border-color:#1a2433}
.foot{background:#111826}

/* ===== 2026-10-18 控えめな形の変化（上品さを優先：塗りを減らし、細い線と小さな数字で） ===== */
/* 札：実証済みは紺の細枠、拡張中は金の細枠 */
.pillars li .ok{background:#fff;color:#1a2433;border:1px solid #1a2433}
.pillars li .maybe{background:#fff;color:#8f6d12;border:1px solid #c9a227}
/* 生成物カード：左の金線をやめ、上辺に細い紺線。小さな通し番号 */
.pillars{counter-reset:pl}
.pillars li{counter-increment:pl;border-top:2px solid #1a2433;border-radius:0 0 8px 8px;padding:18px 20px 16px}
.pillars li::before{display:none}
.pillars li b::before{content:counter(pl,decimal-leading-zero) "　";font-family:Georgia,serif;font-size:12px;color:#8f6d12;letter-spacing:.1em;font-weight:400}
/* 3つの特徴：塗りなし。小さな番号と細い線 */
.facets{counter-reset:fc;gap:18px}
.facets li{counter-increment:fc;border:none;background:transparent;box-shadow:none;padding:16px 0 0;border-radius:0;border-top:1px solid rgba(26,36,51,.3)}
.facets .k::before{content:counter(fc,decimal-leading-zero) "　";font-family:Georgia,serif;color:#8f6d12}
.facets h4{font-size:19px;color:#1a2433}
section.bg-gray .facets li{background:transparent;box-shadow:none}
/* 手順：細い縦線と白抜きの丸 */
.levels{position:relative;gap:12px}
.levels::before{content:"";position:absolute;left:17px;top:18px;bottom:18px;width:1px;background:rgba(26,36,51,.25)}
.levels li{border:none;box-shadow:none;background:transparent;padding:4px 0;border-radius:0}
.levels .lv{position:relative;z-index:1;width:34px;height:34px;background:#fff;border:1px solid #1a2433;color:#1a2433;box-shadow:0 0 0 5px #fff}
section.bg-gray .levels .lv{box-shadow:0 0 0 5px #eaeff5}
.levels li div{background:#fff;border:1px solid rgba(26,36,51,.12);border-radius:8px;padding:14px 18px;flex:1}
.levels h4{color:#1a2433}
/* 比較：塗りは淡く、上辺の線で区別 */
.compare div{border:1px solid rgba(26,36,51,.12);border-top:2px solid rgba(26,36,51,.35)}
.compare div.hi,section.bg-gray .compare div.hi{background:#fff;border-top:2px solid #c9a227}
.compare div h4{color:#1a2433}
/* 分野：横一列、上辺の細線 */
@media(min-width:700px){.dom-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.dom-card{padding:16px 14px 14px}.dom-card h3{font-size:18px}.dom-card p{font-size:12px}}
.dom-card{border-top:2px solid #1a2433;border-radius:0 0 8px 8px}
.dom-count{font-family:Georgia,serif}
/* 記事一覧：枠は均一。日付を明朝の小さな字に */
.post-card{border-top:2px solid rgba(26,36,51,.35)}
.post-card:hover{border-top-color:#c9a227}
/* 背景の節：引用風 */
#background .sec-note{font-family:var(--f-serif);font-size:16px;line-height:2;border-left:2px solid #c9a227;padding-left:18px}
/* 見出しの下線は金の細線 */
.sec-title::after{background:#c9a227;height:1px;width:40px}
.page-links a{border-color:rgba(26,36,51,.5);color:#1a2433;background:#fff}
.page-links a:hover{background:#1a2433;color:#fff}
/* 影を弱める */
.pillars li,.facets li,.post-card,.dom-card,.compare div,.reason,.flowsteps li{box-shadow:0 1px 2px rgba(15,17,21,.04)}
.post-card:hover,.dom-card:hover{box-shadow:0 6px 18px -8px rgba(15,17,21,.2)}

/* ===== 2026-10-18 カードの仕上げ：二重罫・角を立てる・余白・末尾のリンク ===== */
.pillars li,.post-card,.dom-card,.compare div,.reason,.flowsteps li,.levels li div{border-radius:2px;position:relative;background:#fff}
/* 二重罫（紺の線＋金の細線） */
.pillars li,.post-card,.dom-card{border:1px solid rgba(26,36,51,.16);border-top:2px solid #1a2433}
.pillars li::before,.post-card::before,.dom-card::before{content:"";display:block;position:absolute;left:0;right:0;top:3px;height:1px;background:#c9a227;opacity:.9}
.pillars li::before{display:block}
/* 余白と整列 */
.pillars li{padding:22px 22px 18px;display:flex;flex-direction:column;gap:6px;min-height:150px}
.pillars li b{font-size:16.5px;line-height:1.5}
.pillars li span{display:block}
.pillars li span a{display:block;margin-top:auto;padding-top:10px;border-top:1px solid rgba(26,36,51,.1);font-size:12.5px;letter-spacing:.06em;color:#1a2433;font-weight:700}
.pillars li span a:hover{color:#8f6d12}
.pillars li .ok,.pillars li .maybe{align-self:flex-start;margin-bottom:6px}
/* 記事カード：上段のメタに下罫、末尾に「続きを読む」 */
.post-card{padding:20px 22px 16px}
.post-meta{padding-bottom:10px;border-bottom:1px solid rgba(26,36,51,.1);margin-bottom:4px}
.post-meta time{margin-left:auto}
.post-card h3{font-size:18px;line-height:1.6;margin-top:4px}
.post-card p{margin-bottom:6px}
.post-card::after{content:"続きを読む →";display:block;margin-top:auto;padding-top:10px;border-top:1px solid rgba(26,36,51,.1);font-size:12px;letter-spacing:.1em;color:#1a2433;font-weight:700;text-align:right}
.post-card:hover::after{color:#8f6d12}
.post-card:hover h3{text-decoration:underline;text-decoration-color:#c9a227;text-decoration-thickness:1px;text-underline-offset:5px}
/* 分野カード：頭文字の透かし */
.dom-card{padding:18px 16px 14px;overflow:hidden}
.dom-card::after{content:attr(data-initial);position:absolute;right:6px;bottom:-14px;font-family:Georgia,serif;font-size:84px;line-height:1;color:rgba(26,36,51,.05);font-weight:700;pointer-events:none}
.dom-card:hover::after{color:rgba(201,162,39,.14)}
.dom-card h3{position:relative}
/* 比較：角を立て、上辺の線を太く */
.compare div{border-radius:2px;padding:20px 20px 18px}
.compare div h4{padding-bottom:8px;border-bottom:1px solid rgba(26,36,51,.1);margin-bottom:10px}
/* 記事内のカード */
.reason{border:1px solid rgba(26,36,51,.14);border-top:2px solid #1a2433}
.flowsteps li{border:1px solid rgba(26,36,51,.14)}
.chaindef{border-radius:2px;border:1px solid rgba(26,36,51,.14);overflow:hidden}
.chaindef .cd-name{border-radius:0;background:#1a2433;color:#fff}
.chaindef .cd-name .cd-id{color:#e6c454}
/* ホバー */
.pillars li,.post-card,.dom-card{transition:transform .15s,box-shadow .15s,border-color .15s}
.pillars li:hover{transform:translateY(-2px);box-shadow:0 10px 22px -12px rgba(26,36,51,.3)}
.post-card:hover,.dom-card:hover{transform:translateY(-2px);border-top-color:#1a2433;box-shadow:0 10px 22px -12px rgba(26,36,51,.3)}

/* process steps (2026-10-18) */
.levels.process h4 .en-sub{display:block;font-family:Georgia,serif;font-size:11.5px;letter-spacing:.14em;color:#8f6d12;font-weight:400;text-transform:uppercase;margin-top:2px}
.levels.process .lv{font-size:12px;letter-spacing:.04em}
.levels.process li div p{margin-top:4px}

/* hero: 日本語見出しを画像の左下に重ねる（広い画面のみ） */
.hero-photo.overlay{position:relative}
.hero-overlay{display:none}
@media(min-width:640px){
  .hero-overlay{display:block;position:absolute;left:5.4%;bottom:9%;max-width:52%}
  .hero-overlay h1{font-family:var(--f-serif);font-size:clamp(17px,2.4vw,24px);line-height:1.6;letter-spacing:.04em;color:#1a2433;margin:0;text-shadow:0 1px 0 rgba(255,255,255,.6),0 0 18px rgba(255,255,255,.7)}
  .hero-overlay h1 .accent{color:#1a2433;border-bottom:2px solid #c9a227;padding-bottom:1px}
  .hero-band.hero-after{padding-top:30px;padding-bottom:40px}
}
@media(max-width:639px){
  .hero-overlay{display:block;background:#fff;padding:22px 20px 0}
  .hero-overlay h1{font-family:var(--f-serif);font-size:22px;line-height:1.5;color:#1a2433;margin:0}
  .hero-overlay h1 .accent{color:#1a2433;border-bottom:2px solid #c9a227}
}
/* 冒頭のボタン2つを同じ幅・同じ高さに */
.hero-band .cta-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:440px}
.hero-band .cta-row .btn{width:auto;flex:none;padding:14px 16px;font-size:13px;line-height:1.4;display:flex;align-items:center;justify-content:center;min-height:50px;box-sizing:border-box}
.hero-band .btn-line{border-width:1px}
/* ボタン列を本文の幅いっぱいに、左右対称に */
.hero-band .cta-row{max-width:var(--measure);width:100%}

/* 見出しは画像の英文に任せ、h1 は読み上げ・検索用に非表示 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero-band.hero-after{padding-top:28px}
/* hero 下の帯を淡い紺に */
.hero-band.hero-after{background:#eaeff5;border-bottom:1px solid rgba(26,36,51,.1)}
.hero-band.hero-after .btn-line{background:#fff}
/* 最下部の CTA 帯を淡い紺に（濃紺をやめる） */
.footer-cta{background:#eaeff5;box-shadow:inset 0 1px 0 rgba(255,255,255,.9);border-top:1px solid rgba(26,36,51,.1)}
.footer-cta h2{color:#1a2433}
.footer-cta h2 .accent{color:#8f6d12}
.footer-cta p{color:var(--text)}
.rule{background:#c9a227}
.mail-addr{color:#1a2433}
.mail-sub button{border-color:#1a2433;color:#1a2433;background:#fff}
.mail-sub button:hover{background:#1a2433;color:#fff}
.footer-cta p.mail-msg{color:#8f6d12}
.foot{background:#1a2433}
/* CTA 帯は背景の節より一段濃い淡紺にして区別 */
.footer-cta{background:#dde5ee;border-top:1px solid rgba(26,36,51,.14)}
/* CTA: 2列（左に呼びかけとメール、右に相談できること） */
.footer-cta{padding:56px 20px 60px}
.cta-grid{max-width:var(--measure);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
@media(min-width:640px){.cta-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:36px;align-items:start}}
.footer-cta h2{font-size:clamp(20px,4.4vw,26px)}
.footer-cta p{max-width:none}
.cta-topics{list-style:none;margin:0;padding:0;background:#fff;border:1px solid rgba(26,36,51,.16);border-top:2px solid #1a2433;border-radius:2px;position:relative}
.cta-topics::before{content:"";position:absolute;left:0;right:0;top:3px;height:1px;background:#c9a227}
.cta-topics li{padding:14px 18px;border-bottom:1px solid rgba(26,36,51,.1);display:flex;flex-direction:column;gap:2px}
.cta-topics li:last-child{border-bottom:none}
.cta-topics b{font-family:var(--f-serif);font-size:15px;color:#1a2433;font-weight:600}
.cta-topics span{font-size:12.5px;color:var(--muted);line-height:1.7}

/* contact form */
.cform{background:#fff;border:1px solid rgba(26,36,51,.16);border-top:2px solid #1a2433;border-radius:2px;padding:20px 20px 18px;display:flex;flex-direction:column;gap:12px;position:relative}
.cform::before{content:"";position:absolute;left:0;right:0;top:3px;height:1px;background:#c9a227}
.cform label{display:flex;flex-direction:column;gap:4px;font-size:12px;letter-spacing:.08em;color:#1a2433;font-weight:700}
.cform input,.cform select,.cform textarea{font:inherit;font-size:14px;letter-spacing:0;padding:9px 11px;border:1px solid rgba(26,36,51,.25);border-radius:2px;background:#fff;color:var(--text)}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:2px solid #c9a227;outline-offset:1px;border-color:#1a2433}
.cform textarea{resize:vertical;min-height:110px}
.cform .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.cform .btn{margin-top:4px;width:100%;box-shadow:none}
.cform-msg{font-size:12.5px;color:#8f6d12;min-height:1.2em;margin:0}
.cform-note{font-size:11.5px;color:var(--muted);margin:0;line-height:1.6}
@media(min-width:640px){.cta-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}}

/* contact form v2: 1列・横長 */
.cta-stack{max-width:var(--measure);margin:0 auto}
.cta-stack .cta-main{margin-bottom:22px}
.footer-cta .cta-stack h2{font-size:clamp(22px,4.6vw,28px);margin-bottom:10px}
.footer-cta .cta-stack p{font-size:14px;max-width:560px;margin-bottom:0}
.cform{padding:26px 26px 22px;gap:14px;border-radius:4px;box-shadow:0 10px 30px -18px rgba(26,36,51,.35)}
.cform label{font-size:11px;letter-spacing:.14em;color:#5b6370;font-weight:700;text-transform:uppercase;gap:6px}
.cform input,.cform select,.cform textarea{font-size:15px;padding:11px 13px;border:1px solid rgba(26,36,51,.18);border-radius:3px;background:#fbfbfc}
.cform input:focus,.cform textarea:focus{background:#fff;outline:none;border-color:#1a2433;box-shadow:0 0 0 3px rgba(201,162,39,.25)}
.cform .row2{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}
@media(min-width:560px){.cform .row2{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cform textarea{min-height:130px}
.cform-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px}
.cform .btn{width:auto;flex:none;padding:13px 32px;margin:0}
.cform-msg{flex:1;min-width:120px}
.cform-note{border-top:1px solid rgba(26,36,51,.1);padding-top:12px;margin-top:2px}

.footer-cta .sec-label{margin-bottom:16px}

/* ===== 2026-10-18 他ページの色味を同じトーンに（生成り・黒を、白・淡紺・紺へ） ===== */
.results li.key{background:#1a2433;color:#fff;border-bottom-color:#1a2433}
.results li.key span{color:rgba(255,255,255,.78)}
.results{border-color:rgba(26,36,51,.16);border-top:2px solid #1a2433;border-radius:2px}
.solve-row .a{background:#eaeff5;border-color:rgba(26,36,51,.15)}
.solve-row .a .k{color:#8f6d12}
.solve-row .q{border-color:rgba(26,36,51,.15)}
.tools li.core{background:#1a2433;border-color:#1a2433}
.tools li.core b{color:#e6c454}
.tools li.core span{color:rgba(255,255,255,.78)}
.tools li{border-color:rgba(26,36,51,.14);border-radius:2px}
.have .pc{border-color:rgba(26,36,51,.14);border-radius:2px;background:#fff}
.have .pc::before{background:linear-gradient(90deg,transparent,#c9a227 30%,#c9a227 70%,transparent)}
.pri{border-left-color:#c9a227;border-radius:2px}
.pri cite.ref{color:#8f6d12}
.split-col.mem{border-color:rgba(26,36,51,.14)}
.split-col.think{border-color:rgba(26,36,51,.14);border-left:4px solid #1a2433}
.split-col.think .k{color:#8f6d12}
.answer{border-color:rgba(26,36,51,.16);border-left:4px solid #c9a227;border-radius:2px}
.answer .tag{color:#8f6d12}
.readmore ul{border-color:rgba(26,36,51,.14);border-radius:2px}
.readmore a:hover{background:#eaeff5}
.readmore a::after{color:#c9a227}
.crit li,.stats li{border-color:rgba(26,36,51,.14);border-radius:2px}
.crit .n{color:#c9a227}
.crit .more{color:#8f6d12}
.matrix-wrap{border-color:rgba(26,36,51,.14);border-radius:2px}
.matrix thead th{background:#eaeff5;color:#1a2433}
.matrix td{color:#8f6d12}
.tc{border-radius:2px}
.moat blockquote em{color:#8f6d12}
.thesis{background:#eaeff5;color:#1a2433}
.thesis .tag,.thesis em{color:#8f6d12}
.notice{background:#fff8dc;border-left-color:#c9a227;color:#6b4f12}
.deftable{border-color:rgba(26,36,51,.14)}
.deftable th{color:#8f6d12}
/* 循環図（教育ページ）：黒→紺、生成り→淡紺、金はサイトの金に */
.cycle-card{border-color:rgba(26,36,51,.2);border-radius:2px}
.cycle-card.vic{background:#1a2433}.cycle-card.vic figcaption{color:#e6c454}
.cycle-card.vic svg rect[fill="#0f1115"]{fill:#1a2433}
.cycle-card.vic svg circle[fill="#1c1f25"]{fill:#243041}
.cycle-card.vic svg circle[fill="#b08d57"]{fill:#c9a227}
.cycle-card.vic svg [stroke="#b08d57"]{stroke:#c9a227}
.cycle-card.vic svg path[fill="#d4ad7e"]{fill:#e6c454}
.cycle-card.vic svg text[fill="#d4ad7e"]{fill:#e6c454}
.cycle-card.vir{background:#f4f6f9}.cycle-card.vir figcaption{color:#8f6d12}
.cycle-card.vir svg rect[fill="#f8f6f2"]{fill:#f4f6f9}
.cycle-card.vir svg circle[fill="#e0b878"]{fill:#e6c454}
.cycle-card.vir svg [stroke="#b08d57"]{stroke:#c9a227}
.cycle-card.vir svg [stroke="#d9cdb6"]{stroke:#d6dee8}
.cycle-card.vir svg path[fill="#b08d57"]{fill:#c9a227}
.cycle-card.vir svg text[fill="#9a7238"]{fill:#8f6d12}
.cycle-arrow svg path{stroke:#c9a227}
/* ブログの一覧・記事：記事カードの帯や枠を同じ作法に */
.flowq{background:#eaeff5;border-color:rgba(26,36,51,.14)}
.flowq span{background:#1a2433}
.eq,pre.eq{background:#f4f6f9;border-color:rgba(26,36,51,.14)}
.msg.l{background:#e4f0f7}.msg.a{background:#f4f6f9;border-color:rgba(26,36,51,.12)}
.dialog{border-color:rgba(26,36,51,.14);border-radius:2px}
.note-box{background:#fff;border:1px solid rgba(26,36,51,.14);border-left:4px solid #c9a227;border-radius:2px}
.techdl dt{color:#8f6d12}
.outputs{border-color:rgba(26,36,51,.14);border-top:2px solid #1a2433;border-radius:2px}
.outputs li.real a::before{color:#1a2433}
.outputs li.todo .lab::before{color:#c9a227}
.gal-tabs button,.viewbar button{border-color:rgba(26,36,51,.4)}
.part-fig,.flowimg{border-color:rgba(26,36,51,.14)}
.lflow{border-color:rgba(26,36,51,.14)}
.flowchart{border-color:rgba(26,36,51,.14)}
.demo{border-color:rgba(26,36,51,.14);border-radius:2px}
.demo::before{background:linear-gradient(90deg,transparent,#c9a227 30%,#e6c454 50%,#c9a227 70%,transparent)}
.chip.n{background:#e4f0f7;color:#1f5f85}.chip.r{background:#fff8dc;color:#8f6d12}
.controls button.primary{background:#1a2433;border-color:#1a2433}
.controls button.primary:hover{background:#c9a227;border-color:#c9a227}
.dots button[aria-current="step"]{background:#1a2433;border-color:#1a2433;color:#e6c454}
.chain-id{color:#8f6d12}
.hero-band .status.done,.status.on-light.done,.on-light .status.done{background:#e5f3ea;color:#256c42}

/* 引用の帯（thesis）は白地＋上下の細線にして、灰青の節と交互に置けるようにする */
.thesis{background:#fff;border-top:1px solid rgba(26,36,51,.12);border-bottom:1px solid rgba(26,36,51,.12)}
.thesis p{border-left:3px solid #c9a227;padding-left:18px}
.thesis .readmore{margin-left:21px}

/* ---- video placeholder (moved from the 2026-10-07 top page) ---- */
.video-frame{max-width:var(--measure);margin:0 auto;aspect-ratio:16/9;background:#1a2433 url("../img/hero-evidence-en.jpg") center/cover;border-radius:6px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 10px 30px rgba(26,36,51,.25)}
.video-frame::before{content:"";position:absolute;inset:0;background:rgba(26,36,51,.55)}
.video-frame .play{position:relative;width:72px;height:72px;border-radius:50%;background:var(--gold);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.3)}
.video-frame .play::after{content:"";margin-left:6px;border-style:solid;border-width:13px 0 13px 22px;border-color:transparent transparent transparent #fff}
.video-cap{position:absolute;bottom:14px;left:16px;font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.85)}
#tools .tools{margin-bottom:34px}

/* footer: legal links set apart from the page links */
.foot-nav a.foot-legal{opacity:.75}
.foot-nav a.foot-legal:first-of-type{margin-left:10px;padding-left:12px;border-left:1px solid rgba(255,255,255,.25)}

/* phones: stack the two hero buttons and let their labels wrap */
@media (max-width:600px){
  .hero-band .cta-row{grid-template-columns:1fr;max-width:none}
  .hero-band .cta-row .btn,.hero-copy .cta-row .btn{white-space:normal;line-height:1.45;padding:13px 14px}
  .hero-copy .cta-row{flex-direction:column;max-width:none}
}

/* simple case layout */
.gal.gal-wide{max-width:none}
.gal-wide .flowbox,.gal-wide .flowchart,.gal-wide .demo{max-width:none}
details.judg summary{cursor:pointer;font-weight:700;font-size:14px;color:var(--gold-ink);padding:10px 0}
details.judg[open] summary{margin-bottom:10px}
.art-status{padding:10px 20px 30px;color:var(--muted)}
.source-line.small a{color:var(--gold-ink);font-weight:700}
.gal-wide .flowq{display:none}
.gal-wide .flowchart{border-radius:8px}

/* mobile menu: the generic ".topnav nav{display:none}" rule was also hiding the opened menu */
@media(max-width:640px){
  .topnav nav.mobile-nav[hidden]{display:none}
  .topnav nav.mobile-nav:not([hidden]){display:flex;flex-direction:column;align-items:stretch;gap:0}
  .mobile-nav a{border-bottom:none}
}
@media(max-width:640px){
  .topnav nav.mobile-nav a:not(.cta){display:block}
  .topnav nav.mobile-nav a[aria-current="page"]{border-bottom:none;color:var(--gold-ink)}
}
@media(max-width:640px){
  .topnav-inner{padding-inline:20px}
  .topnav nav.mobile-nav a{padding:13px 20px}
  .topnav nav.mobile-nav a.cta{padding:13px 20px;border-radius:0}
}

/* outputs cards: schematic preview on top */
.pillars.rich li{padding-top:0}
.pc-pre{margin:3px -22px 12px;height:124px;background:#eef2f7;border-bottom:1px solid rgba(26,36,51,.1);display:flex;align-items:center;justify-content:center;padding:6px 14px;box-sizing:border-box}
.pc-pre svg{width:100%;height:100%;max-width:240px}
.pillars.rich li:hover .pc-pre{background:#e7edf5}

/* cards: single thick gold rule on top (navy rule removed) */
.pillars li,.post-card,.dom-card{border-top:3px solid #c9a227}
.pillars li::before,.post-card::before,.dom-card::before{display:none!important}

/* domain cards: name only, in a row */
.dom-card p{display:none}
.dom-grid{gap:10px}
@media(min-width:560px){.dom-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}}
.dom-card{padding:18px 16px 14px;min-height:0}
.dom-card h3{font-size:19px!important;margin:0}
#domains .dom-card .dom-count{display:none}
#domains .dom-card{text-align:center;align-items:center}

/* link buttons: rectangular, navy rule, gold arrow that slides on hover */
.page-links{gap:12px;margin-top:22px}
.page-links a{display:inline-flex;align-items:center;gap:10px;border-radius:2px;border:1px solid rgba(26,36,51,.55);background:#fff;color:#1a2433;padding:12px 18px 12px 20px;font-size:13px;font-weight:700;letter-spacing:.08em;line-height:1.3;transition:background .15s,color .15s,border-color .15s,box-shadow .15s;box-shadow:0 1px 2px rgba(15,17,21,.04)}
.page-links a::after{content:"→";font-family:Georgia,serif;font-size:15px;color:#c9a227;transition:transform .15s}
.page-links a:hover{background:#1a2433;color:#fff;border-color:#1a2433;box-shadow:0 8px 18px -10px rgba(26,36,51,.5)}
.page-links a:hover::after{transform:translateX(4px);color:#e6c454}
.global .page-links a{background:#fff;color:#1a2433!important;border-color:rgba(26,36,51,.55)!important}
.global .page-links a:hover{background:#1a2433;color:#fff!important}
@media (max-width:600px){.page-links{flex-direction:column}.page-links a{justify-content:space-between}}
@media(min-width:560px){
  .two-causes.three{grid-template-columns:minmax(0,1fr);gap:12px}
  .two-causes.three .tc{display:grid;grid-template-columns:64px minmax(0,1fr);column-gap:20px;row-gap:4px;align-items:start;padding:18px 20px}
  .two-causes.three .tc .tc-k{grid-row:1/3;padding-top:4px}
  .two-causes.three .tc h4{grid-column:2;margin:0}
  .two-causes.three .tc p{grid-column:2;margin:0}
}

/* connector line drawn per item, from one number centre to the next (ends exactly at the last number) */
.levels::before{display:none}
.levels li{position:relative}
.levels li::before{content:"";position:absolute;left:17px;top:21px;bottom:-33px;width:1px;background:rgba(26,36,51,.25)}
.levels li:last-child::before{display:none}

/* width trial (2026-10-19): wider page column and text measure */
:root{--measure:680px;--page:960px}

/* outputs: six kinds by what the recipient does */
.pillars.outputs6 li{min-height:0;gap:4px;padding:20px 22px 18px}
.pillars.outputs6 li b{font-size:20px;line-height:1.3;margin-bottom:0}
.pillars.outputs6 li b::before{content:none}
.pillars.outputs6 li .en{display:block;font-family:Georgia,serif;font-size:11px;letter-spacing:.18em;color:#8f6d12;margin-bottom:8px}
.pillars.outputs6 li span:not(.en){font-size:13.5px;line-height:1.8;color:var(--text)}
@media(min-width:720px){.pillars.outputs6{grid-template-columns:repeat(3,minmax(0,1fr))}}

.pillars.outputs6 .kinds{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:5px}
.pillars.outputs6 .kinds li{position:relative;padding-left:14px;font-size:13.5px;line-height:1.7;color:var(--text)}
.pillars.outputs6 .kinds li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:#c9a227}
/* nested bullet items must not inherit the card styling of .pillars li */
.pillars.outputs6 .kinds li{display:list-item!important;list-style:disc;margin:0 0 0 16px;padding:0!important;border:none!important;box-shadow:none!important;background:transparent!important;min-height:0!important;border-radius:0;transform:none!important;counter-increment:none}
.pillars.outputs6 .kinds li::marker{color:#c9a227;font-size:.9em}
.pillars.outputs6 .kinds li:hover{transform:none!important;box-shadow:none!important}
/* bullets drawn explicitly (the generic card rule hides ::before on .pillars li) */
.pillars.outputs6 .kinds{gap:6px;margin-top:2px}
.pillars.outputs6 .kinds li{list-style:none;position:relative;margin:0;padding:0 0 0 18px!important;font-size:14px;line-height:1.7}
.pillars.outputs6 .kinds li::after{content:"";position:absolute;left:3px;top:.62em;width:6px;height:6px;border-radius:50%;background:#c9a227}
.pillars.outputs6 li .en{margin-bottom:12px}

/* link buttons centred under their section */
.page-links{justify-content:center;margin-top:26px}

/* link buttons: equal width (one third of the row), label left, arrow right */
.page-links a{flex:0 0 calc((100% - 24px)/3);justify-content:space-between;text-align:left;padding:12px 14px 12px 16px}
@media(max-width:600px){.page-links{flex-direction:column}.page-links a{flex:0 0 auto}}

/* link buttons: label centred, arrow pinned to the right edge */
.page-links a{justify-content:center;text-align:center;position:relative;padding:12px 24px;letter-spacing:.06em}
.page-links a::after{position:absolute;right:9px;top:50%;transform:translateY(-50%)}
.page-links a:hover::after{transform:translateY(-50%) translateX(4px)}

/* contact form: "what you want made" checkbox group */
.cform fieldset.checks{border:0;padding:0;margin:0;min-width:0}
.cform fieldset.checks legend{font-size:11px;letter-spacing:.14em;color:#5b6370;font-weight:700;text-transform:uppercase;padding:0;margin-bottom:8px}
.cform .checks-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:6px 14px}
@media(min-width:560px){.cform .checks-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cform .checks-grid label{flex-direction:row;align-items:flex-start;gap:9px;font-size:14px;letter-spacing:0;text-transform:none;font-weight:600;color:#1a2433;padding:7px 10px;border:1px solid rgba(26,36,51,.14);border-radius:3px;background:#fbfbfc;cursor:pointer}
.cform .checks-grid label:has(input:checked){border-color:#1a2433;background:#fff;box-shadow:0 0 0 2px rgba(201,162,39,.3)}
.cform .checks-grid input{margin:3px 0 0;accent-color:#1a2433;flex:none;width:15px;height:15px;padding:0}
.cform .checks-grid span{display:flex;flex-direction:column;gap:1px;line-height:1.35}
.cform .checks-grid small{font-size:11.5px;font-weight:400;color:var(--muted);letter-spacing:0}
.cform textarea::placeholder,.cform input::placeholder{color:#9aa1ab}

/* case cards and article heroes: the source material on its own line above the title */
.post-card p.post-material{font-size:12.5px;letter-spacing:.04em;color:var(--gold-ink);font-weight:700;line-height:1.5;margin:2px 0 -2px}
.art-hero .art-material{font-size:14px;letter-spacing:.04em;color:var(--gold-light);font-weight:700;margin:0 0 8px}

/* case cards: domain + format pills, then material, title, summary */
.post-meta time{margin-left:auto;font-family:var(--f-mono)}
.post-meta .fmt{font-size:10.5px;letter-spacing:.1em;color:var(--gold-ink);border:1px solid rgba(201,162,39,.7);background:#fff;padding:1px 8px;border-radius:2px;font-weight:700;line-height:1.6}
.post-card p.post-material{display:flex;align-items:baseline;gap:8px;color:var(--text);font-weight:600}
.post-card p.post-material .lab{font-size:10.5px;letter-spacing:.14em;color:var(--muted);font-weight:700;flex:none}
.post-card h3{margin-top:2px}

/* "read more" label follows the page language */
html[lang="en"] .post-card::after{content:"Read more \2192"}

/* standalone definition block (e.g. "what a chain is") */
.define{max-width:var(--measure);margin:22px auto 30px;padding:18px 22px;background:#fff;border:1px solid rgba(26,36,51,.14);border-left:4px solid #c9a227;border-radius:3px}
.define h3{font-family:var(--f-serif);font-size:16px;font-weight:700;color:#1a2433;margin:0 0 8px;letter-spacing:.02em}
.define p{font-size:14.5px;line-height:1.95;color:var(--text);margin:0}
.bg-gray .define{background:#fff}

/* legal pages (privacy policy, terms) */
.legal-body{max-width:var(--measure);margin:0 auto;font-size:14.5px;line-height:1.95;color:var(--text)}
.legal-body .legal-date{font-family:var(--f-mono);font-size:12px;color:var(--muted);margin:0 0 26px}
.legal-body h2{font-family:var(--f-serif);font-size:17px;font-weight:700;color:#1a2433;margin:30px 0 8px;padding-left:12px;border-left:3px solid #c9a227;line-height:1.5}
.legal-body p{margin:0 0 12px}
.legal-body ul{margin:0 0 12px;padding-left:1.3em}
.legal-body li{margin:0 0 6px}
.legal-body a{color:var(--gold-ink);font-weight:700;text-decoration:underline}

/* header sub-brand: hide on narrow screens */
@media(max-width:560px){.logo small{display:none}}

/* single-output article: format pill in hero */
.art-hero .art-material .fmt{display:inline-block;margin-right:10px;font-size:10.5px;letter-spacing:.12em;color:#f3d9a8;border:1px solid rgba(243,217,168,.7);padding:1px 8px;border-radius:2px;font-weight:700;line-height:1.7;vertical-align:middle}
.part-fig img{width:auto;max-width:100%;max-height:440px;margin:0 auto}
.anim-frame.auto{aspect-ratio:auto;height:auto;position:static;overflow:visible}
.anim-frame.auto iframe{position:static;display:block;width:100%;height:620px;border:0;border-radius:6px}

/* format cards on the cases index */
.fmt-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:700px){.fmt-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:460px){.fmt-grid{grid-template-columns:minmax(0,1fr)}}
.fmt-card p{margin:2px 0 6px}
@media(min-width:560px){.dom-grid.fmt-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}}
.dom-card.fmt-card p{display:block;font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 8px;flex:1}
/* compact browse rows on the cases index */
.browse{max-width:var(--measure);margin:0 auto 6px;padding:14px 16px;background:#fff;border:1px solid rgba(26,36,51,.14);border-radius:6px}
.browse-row{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center}
.browse-row+.browse-row{margin-top:10px;padding-top:10px;border-top:1px solid rgba(26,36,51,.08)}
.browse-row .lab{font-size:11px;letter-spacing:.14em;color:var(--muted);font-weight:700;min-width:3.2em;margin-right:4px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text);background:#f7f5ef;border:1px solid rgba(26,36,51,.14);border-radius:999px;padding:4px 12px;text-decoration:none;line-height:1.5;transition:.15s}
.chip small{font-family:var(--f-mono);font-size:11px;color:var(--gold-ink);font-weight:700}
.chip:hover{border-color:var(--gold);background:#fff}
.chip.empty{color:var(--muted)}.chip.empty small{color:var(--muted);font-weight:400}

/* two ways to work with us */
.offer{max-width:var(--page);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:14px}
@media(min-width:700px){.offer{grid-template-columns:repeat(2,minmax(0,1fr))}}
.offer-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid rgba(26,36,51,.14);border-top:3px solid #c9a227;border-radius:6px;padding:22px 22px 20px}
.offer-card .tag{font-size:10.5px;letter-spacing:.16em;color:var(--gold-ink);font-weight:700}
.offer-card h3{font-family:var(--f-serif);font-size:22px;font-weight:600;color:var(--wine-dark);margin:0}
.offer-card p{margin:0;font-size:14.5px;line-height:1.85;color:var(--text)}
.offer-card .fit{font-size:13px;color:var(--muted);flex:1}
.offer-card .fit b{display:block;font-size:10.5px;letter-spacing:.14em;color:var(--muted);margin-bottom:2px}
.offer-card .btn{align-self:flex-start;margin-top:4px}
.cform fieldset.want .checks-grid{grid-template-columns:minmax(0,1fr)}
@media(min-width:700px){.cform fieldset.want .checks-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cform fieldset.outputs[hidden]{display:none}
.offer-card .btn{flex:0 0 auto;align-self:flex-start;margin-top:auto;padding-top:14px;padding-bottom:14px}
.offer{max-width:var(--measure);gap:10px}
.offer-card{padding:18px 18px 16px}
.offer-card h3{font-size:20px}
.offer-card p{font-size:14px}

.gal-more{margin:12px 0 0;font-size:13.5px;font-weight:700}
.gal-more a{color:var(--gold-ink);text-decoration:none;border-bottom:1px solid rgba(201,162,39,.5)}
.gal-more a:hover{border-bottom-color:var(--gold-ink)}