:root{--paper:#252a28;--ink:#f4f2df;--accent:#e0c868;--panel:#393e36;--muted:#bcc9cc;--line:#ffffff30;--button-ink:#252a28;}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{display:block;max-width:100%;height:auto}p,h1,h2,h3{margin:0}p{color:var(--muted)}.wrap{width:min(1200px,calc(100% - 80px));margin:auto}.skip{position:absolute;top:-100px;background:var(--ink);color:var(--paper);padding:10px;z-index:10}.skip:focus{top:0}.topline{border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.08em;padding:9px 0}.topline .wrap{display:flex;justify-content:space-between;gap:15px}.masthead{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand img{width:40px;height:40px}.brand strong{font-size:20px;letter-spacing:-.7px;display:block;line-height:1.3}.brand small{font-size:10px;letter-spacing:1.7px}.main-nav{display:flex;align-items:center;gap:30px;font-size:13px}.nav-source{border:1px solid var(--line);padding:9px 17px;border-radius:3px}.menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--ink);padding:8px 12px}.eyebrow{font:11px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:2px;color:var(--accent);display:block;margin-bottom:24px}.hero{position:relative;padding:64px 0 52px;display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}.hero-copy{min-width:0}.hero h1{font-size:15px;letter-spacing:2px;font-weight:600;margin-bottom:20px}.headline{font-size:clamp(32px,4vw,57px);letter-spacing:-2.5px;line-height:1.26;color:var(--ink);font-weight:650;margin-bottom:27px}.intro{max-width:560px;font-size:15px;line-height:1.95}.actions{display:flex;flex-wrap:wrap;gap:22px;align-items:center;margin-top:30px}.button{display:inline-flex;gap:32px;align-items:center;justify-content:space-between;background:var(--accent);color:var(--button-ink);padding:13px 21px;border:0;border-radius:3px;font-size:13px;font-weight:600}.text-button{border:0;background:transparent;color:var(--ink);padding:8px 0;border-bottom:1px solid var(--line);font-size:13px}.art{position:relative;min-width:0}.art img{width:100%;aspect-ratio:6/5}.art figcaption{font:10px ui-monospace,monospace;letter-spacing:1px;padding-top:12px;display:flex;justify-content:space-between;gap:15px;color:var(--muted)}figure{margin:0}.hero-note{padding:18px;border:1px solid var(--line);font-size:12px;margin-top:22px}.hero-note strong{color:var(--accent);display:block;font-size:13px}.ribbon{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);padding:20px 0;gap:20px;font-size:12px}.ribbon b{font:11px ui-monospace,monospace;display:block;color:var(--accent);margin-bottom:5px}.section{padding:62px 0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:28px}.section-heading h2{font-size:29px;line-height:1.4;letter-spacing:-.8px}.section-heading .eyebrow{margin-bottom:10px}.section-heading p{font-size:13px;max-width:340px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.card{border-top:2px solid var(--accent);padding:24px 0;min-width:0}.card .number{font:12px ui-monospace,monospace;color:var(--accent);display:block;margin-bottom:26px}.card h3{font-size:18px;margin-bottom:13px}.card p{font-size:13px;line-height:1.95}.focus-panel{padding:38px;background:var(--panel);display:grid;grid-template-columns:1fr 1.2fr;gap:60px}.focus-panel h2{font-size:30px;line-height:1.45;margin-bottom:18px}.focus-panel p{font-size:13px}.focus-rows>div{display:grid;grid-template-columns:42px 1fr;gap:18px;padding:17px 0;border-bottom:1px solid var(--line)}.focus-rows b{font:13px ui-monospace,monospace;color:var(--accent)}.focus-rows h3{font-size:15px}.focus-rows p{font-size:12px;margin-top:4px}.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.article-item{border:1px solid var(--line);padding:24px;display:block}.article-item small{color:var(--accent);font:11px ui-monospace,monospace}.article-item h3,.article-item h2{font-size:18px;margin:15px 0 10px}.article-item p{font-size:13px}.empty-state{border:1px dashed var(--line);padding:26px;grid-column:1/-1;font-size:13px}.topic-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.topic-grid a{padding:20px 14px;background:var(--paper);font-size:13px}.topic-grid small{display:block;color:var(--accent);font:10px ui-monospace,monospace;margin-bottom:8px}.topic-grid .current{background:var(--panel);font-weight:700}.faq{display:grid;grid-template-columns:1fr 1.8fr;gap:65px}.faq h2{font-size:32px}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;font-size:15px}.faq details p{font-size:13px;margin-top:14px}.sources{margin-top:24px;display:flex;flex-wrap:wrap;gap:20px;font-size:12px}.closing{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:38px 0;border-top:1px solid var(--line)}.closing h2{font-size:25px}.closing p{font-size:13px;margin-top:10px}footer{background:var(--ink);color:var(--paper);padding:45px 0 25px}footer p{color:inherit;opacity:.8;font-size:12px;max-width:600px}footer .footer-row{display:flex;justify-content:space-between;gap:40px}footer .footer-title{font-size:23px;letter-spacing:2px;margin-bottom:15px}footer .footer-links{display:flex;flex-wrap:wrap;gap:20px;font-size:12px;margin-top:25px}.footer-bottom{border-top:1px solid currentColor;opacity:.7;margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:10px}.page-title{font-size:clamp(32px,4vw,52px);line-height:1.4;letter-spacing:-1.2px;max-width:900px;margin-bottom:20px}.reading{padding:55px 0}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 260px;gap:70px;padding:38px 0 65px}.article-body{min-width:0}.article-body p,.article-body li{line-height:2;font-size:15px;margin:12px 0 23px}.article-body h2{font-size:25px;margin:36px 0 18px}.article-body a{text-decoration:underline}.article-body img{max-width:100%}.article-body pre{overflow:auto}.sidebar{border-left:1px solid var(--line);padding-left:25px;font-size:13px}.sidebar a{display:block;margin:15px 0}.article-meta{font-size:12px;color:var(--muted);margin:18px 0}.guide-dialog{background:var(--paper);color:var(--ink);border:1px solid var(--line);padding:35px;max-width:600px;width:calc(100% - 40px);max-height:85vh}.guide-dialog::backdrop{background:#101827a8}.guide-dialog h2{font-size:27px;margin:10px 0 20px}.guide-dialog ol{padding-left:22px}.guide-dialog li{padding:9px 0}.close{float:right;background:transparent;border:1px solid var(--line);color:var(--ink);padding:4px 13px}.guide-dialog .button{margin-top:20px}.symbol{font:100px/1 ui-monospace,monospace;color:var(--accent)}.mini-labels{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.mini-labels span{border:1px solid var(--line);padding:6px 13px;font:10px ui-monospace,monospace}.rail{font:11px ui-monospace,monospace;letter-spacing:2px;color:var(--muted)}
/* Each topic owns its composition, in addition to its palette and illustration. */
.directory .hero{grid-template-columns:1.15fr .85fr}.directory .hero .art{border-left:1px solid var(--line);padding-left:30px}.directory .headline{font-family:Georgia,"Songti SC",serif;font-weight:500}.directory .cards .card:first-child{background:var(--panel);padding:24px}
.app .hero{grid-template-columns:1fr .85fr}.app .art{border-radius:48% 48% 8px 8px;background:var(--panel);padding:20px}.app .cards{grid-template-columns:repeat(2,1fr)}.app .card{border:1px solid var(--line);border-radius:18px;padding:26px}.app .focus-panel{border-radius:22px}.app .button{border-radius:30px}
.onboarding .hero{grid-template-columns:.9fr 1.1fr}.onboarding .art{order:-1}.onboarding .cards{grid-template-columns:1fr;counter-reset:steps;gap:0}.onboarding .card{display:grid;grid-template-columns:70px 230px 1fr;gap:28px;border-top:1px solid var(--line)}.onboarding .card .number{font-size:24px;margin:0}.onboarding .headline{font-family:Georgia,"Songti SC",serif}.onboarding .ribbon{background:var(--panel);padding:22px}
.network .hero{padding-top:75px;grid-template-columns:1fr 1.2fr}.network .art{border:1px solid var(--line);border-radius:50%;padding:20px}.network .cards{grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.network .card{border:0;background:var(--paper);padding:30px}.network .focus-panel{grid-template-columns:1.2fr 1fr}
.ledger .hero{grid-template-columns:1.15fr .85fr}.ledger .art{background:var(--panel);padding:25px;transform:rotate(2deg)}.ledger .cards{grid-template-columns:1fr 1fr;column-gap:65px}.ledger .card{display:grid;grid-template-columns:40px 1fr;gap:12px}.ledger .card p{grid-column:2}.ledger .card .number{margin:0}.ledger .focus-panel{border-block:3px double var(--accent)}
.orderbook .hero{grid-template-columns:1fr 1.15fr}.orderbook .art{border:1px solid var(--line);background:var(--panel)}.orderbook .headline{font-size:46px}.orderbook .cards{gap:0;border:1px solid var(--line)}.orderbook .card{padding:25px;border-left:1px solid var(--line)}.orderbook .focus-panel{background:transparent;border:1px solid var(--line)}.orderbook .main-nav,.orderbook .ribbon{font-family:ui-monospace,monospace}
.invoice .hero{grid-template-columns:1fr .75fr;border-bottom:3px double var(--ink)}.invoice .art{border-inline:1px dashed var(--accent);padding:12px}.invoice .headline{font-family:Georgia,"Songti SC",serif;font-weight:500}.invoice .cards{grid-template-columns:1fr;gap:0}.invoice .card{display:grid;grid-template-columns:60px 190px 1fr;gap:25px;border-top:1px dashed var(--line)}.invoice .card .number{margin:0}.invoice .focus-panel{background:transparent;border:1px solid var(--line)}
.terminal .hero{display:block;text-align:center;padding-bottom:25px}.terminal .hero-copy{max-width:850px;margin:auto}.terminal .headline{font-size:52px}.terminal .intro{margin:auto;max-width:650px}.terminal .actions{justify-content:center}.terminal .art{max-width:1000px;margin:38px auto 0}.terminal .art img{aspect-ratio:12/5;object-fit:cover;object-position:center}.terminal .cards{grid-template-columns:repeat(4,1fr)}.terminal .focus-panel{border:1px solid var(--line)}
.workspace .hero{grid-template-columns:.9fr 1.2fr}.workspace .art{background:var(--panel);border-radius:16px;box-shadow:12px 12px 0 var(--line)}.workspace .cards{grid-template-columns:1.4fr 1fr 1fr}.workspace .card{background:var(--panel);border:0;border-radius:12px;padding:27px}.workspace .card:first-child{grid-row:span 2}.workspace .card:last-child{grid-column:2/4}.workspace .card:first-child .number{font-size:50px}.workspace .focus-panel{border-radius:12px}
.funding .hero{grid-template-columns:1fr 1fr}.funding .hero-note{border-radius:30px}.funding .cards{gap:30px}.funding .card{border:0;padding-top:0}.funding .card .number{border-radius:50%;background:var(--accent);color:var(--paper);width:44px;height:44px;display:grid;place-items:center}.funding .focus-panel{border-radius:50px 0 50px 0}.funding .ribbon{border-radius:8px;background:var(--panel);padding:24px}
.tracking .hero{grid-template-columns:1.05fr 1fr}.tracking .art{border:1px solid var(--line);border-top:7px solid var(--accent);background:var(--panel)}.tracking .cards{grid-template-columns:1fr 1fr}.tracking .card{border-left:2px solid var(--accent);border-top:0;padding:0 25px;margin:15px 0}.tracking .focus-panel{grid-template-columns:1fr 1fr;background:transparent;border:1px solid var(--line)}
.compare .hero{grid-template-columns:.85fr 1.2fr}.compare .headline{font-family:Georgia,"Songti SC",serif}.compare .cards{grid-template-columns:repeat(2,1fr)}.compare .card{border:1px solid var(--line);padding:30px}.compare .card:nth-child(even){background:var(--panel)}.compare .focus-panel{border-top:5px solid var(--accent)}
.balance .hero{grid-template-columns:1fr 1.1fr}.balance .art{border-bottom:7px solid var(--accent)}.balance .headline{font-size:50px}.balance .cards{grid-template-columns:1fr 1fr;gap:0}.balance .card{padding:25px;border:1px solid var(--line)}.balance .card .number{font-size:40px}.balance .focus-panel{background:transparent;border-left:6px solid var(--accent)}
.gauge .hero{grid-template-columns:.95fr 1.05fr}.gauge .art{background:var(--panel);border-radius:50% 50% 0 0}.gauge .cards{grid-template-columns:repeat(2,1fr)}.gauge .card{border:0;border-bottom:1px solid var(--line);padding:25px}.gauge .card h3{font-size:22px}.gauge .focus-panel{border-radius:10px}.gauge .ribbon{border-block:2px solid var(--accent)}
.night .hero{grid-template-columns:1fr 1fr}.night .art{order:-1;border-radius:50%;background:var(--panel)}.night .headline{font-family:Georgia,"Songti SC",serif;font-weight:500}.night .cards{grid-template-columns:1fr 1fr;gap:40px}.night .card{border-top:1px solid var(--line)}.night .focus-panel{border-radius:100px 0 0 0;padding:60px}.night .ribbon{font-size:11px}
.bullion .hero{grid-template-columns:1fr 1fr;gap:80px}.bullion .headline{font-family:Georgia,"Songti SC",serif;font-weight:500}.bullion .art{background:var(--panel);padding:10px;outline:1px solid var(--accent);outline-offset:9px}.bullion .cards{grid-template-columns:repeat(4,1fr);gap:35px}.bullion .card .number{font:40px Georgia,serif}.bullion .focus-panel{border-block:1px solid var(--accent);background:transparent}
.atlas .hero{grid-template-columns:1fr 1.1fr}.atlas .art{background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:30px 30px}.atlas .cards{grid-template-columns:repeat(2,1fr)}.atlas .card{border:1px solid var(--line);padding:25px}.atlas .focus-panel{background:var(--ink);color:var(--paper)}.atlas .focus-panel p{color:var(--paper)}.atlas .focus-panel .eyebrow,.atlas .focus-panel b{color:#8bd3d1}
.industrial .hero{grid-template-columns:1.05fr .9fr}.industrial .headline{font-weight:800;letter-spacing:-3px}.industrial .art{border:1px solid var(--line);padding:15px}.industrial .ribbon{border-block:5px solid var(--accent)}.industrial .cards{grid-template-columns:1fr 1fr;gap:0}.industrial .card{border:1px solid var(--line);padding:30px}.industrial .focus-panel{grid-template-columns:.8fr 1.2fr}
.newspaper .masthead{border-bottom:4px double var(--ink)}.newspaper .hero{grid-template-columns:1.3fr .8fr;border-bottom:1px solid var(--ink)}.newspaper .headline{font-family:Georgia,"Songti SC",serif;font-size:55px}.newspaper .art{border-left:1px solid var(--line);padding-left:30px}.newspaper .cards{gap:30px}.newspaper .card{border-top:0;border-right:1px solid var(--line);padding-right:25px}.newspaper .focus-panel{background:transparent;border-block:4px double var(--line)}.newspaper .article-item{border:0;border-bottom:1px solid var(--line);padding:20px 0}
.silver .hero{grid-template-columns:.85fr 1.2fr}.silver .art{order:-1;background:var(--panel);border-radius:0 100px 0 0}.silver .headline{font-weight:450}.silver .cards{grid-template-columns:1fr 1fr}.silver .card{padding:30px;border:1px solid var(--line)}.silver .card .number{font-size:28px}.silver .focus-panel{border-radius:0 80px 0 0}
.coupon .hero{grid-template-columns:1.1fr .9fr}.coupon .art{background:var(--panel);border:2px dashed var(--accent);border-radius:25px}.coupon .cards{grid-template-columns:repeat(2,1fr)}.coupon .card{border:1px dashed var(--accent);padding:25px;border-radius:15px}.coupon .focus-panel{border-radius:15px;border-left:8px solid var(--accent)}.coupon .button{border-radius:25px}.coupon .ribbon{border-block:1px dashed var(--accent)}
@media(min-width:1500px){.hero{padding-block:85px}.headline{font-size:62px}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:30px}.headline,.orderbook .headline,.balance .headline,.newspaper .headline{font-size:39px}.main-nav{gap:18px}.cards{grid-template-columns:repeat(2,1fr)}.topic-grid{grid-template-columns:repeat(4,1fr)}.article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:30px}.onboarding .card,.invoice .card{grid-template-columns:45px 150px 1fr;gap:20px}.focus-panel{gap:30px}.terminal .cards,.bullion .cards,.newspaper .cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.topline{font-size:9px}.topline .right{display:none}.masthead{padding:18px 0;flex-wrap:wrap;position:relative}.brand strong{font-size:18px}.brand img{width:34px;height:34px}.brand small{font-size:9px}.menu-toggle{display:block}.main-nav{display:none;width:100%;flex-direction:column;align-items:stretch;gap:0}.main-nav.is-open{display:flex}.main-nav a{padding:12px 0;border-bottom:1px solid var(--line)}body[class] .hero{display:flex;flex-direction:column;align-items:stretch;gap:35px;padding:36px 0}body[class] .hero .art{order:0;transform:none;padding:12px;max-width:100%;margin:0;border-radius:15px}.hero h1{font-size:13px;margin-bottom:16px}.eyebrow{font-size:10px;margin-bottom:20px}body[class] .hero .headline{font-size:36px;letter-spacing:-1.7px;line-height:1.35}body[class] .hero .intro{font-size:14px}.hero .actions{gap:15px;margin-top:23px}.button{padding:12px 16px;gap:25px}.text-button{font-size:12px}.ribbon{grid-template-columns:1fr 1fr;gap:17px;padding:20px 0}.section{padding:40px 0}.section-heading{display:block;margin-bottom:22px}.section-heading h2{font-size:25px}.section-heading p{margin-top:13px}.section-heading>a{display:inline-block;margin-top:15px}body[class] .cards{display:grid;grid-template-columns:1fr;gap:17px;background:transparent;border:0}body[class] .cards .card{display:block;grid-row:auto;grid-column:auto;border:1px solid var(--line);padding:23px;margin:0;border-radius:4px}body[class] .card .number{font-size:13px;margin-bottom:15px;width:auto;height:auto;background:transparent;color:var(--accent);display:block}body[class] .card p{font-size:13px}body[class] .card h3{font-size:18px}body[class] .focus-panel{display:block;padding:26px;border-radius:4px}body[class] .focus-panel h2{font-size:26px}.focus-rows{margin-top:25px}.article-list{grid-template-columns:1fr;gap:15px}.article-item{padding:20px}.topic-grid{grid-template-columns:repeat(3,1fr)}.topic-grid a{padding:15px 10px;font-size:12px}.faq{display:block}.faq h2{font-size:26px}.faq>div+div{margin-top:20px}.closing{display:block;padding:28px 0}.closing h2{font-size:22px}.closing .button{margin-top:22px}footer .footer-row{display:block}footer .footer-row>div+div{margin-top:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}.article-layout{display:flex;flex-direction:column;gap:30px}.sidebar{border-left:0;border-top:1px solid var(--line);padding:20px 0}.page-title{font-size:31px}.reading{padding:35px 0}.article-body h2{font-size:23px}.terminal .hero{text-align:left}.terminal .actions{justify-content:flex-start}.terminal .art img{aspect-ratio:6/5;object-fit:contain}.sources{gap:15px}.guide-dialog{padding:24px}.guide-dialog h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}