:root {
  --ink: #08111f;
  --ink-2: #102138;
  --paper: #f4f1e8;
  --paper-2: #ebe6d8;
  --white: #fffdf7;
  --acid: #b8f35b;
  --cyan: #35d1c5;
  --amber: #f4b84a;
  --red: #ef705d;
  --muted: #66717d;
  --line: rgba(8, 17, 31, .16);
  --line-dark: rgba(255, 255, 255, .15);
  --shadow: 0 24px 70px rgba(8, 17, 31, .12);
  --radius: 22px;
  --shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif; line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }
button, input { font: inherit; }
.shell { width: var(--shell); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 999; left: 18px; top: -60px; padding: 10px 16px; background: var(--acid); color: var(--ink); font-weight: 800; border-radius: 0 0 8px 8px; transition: top .2s; }
.skip-link:focus { top: 0; }

.site-header { position: sticky; z-index: 100; top: 0; background: rgba(244, 241, 232, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.header-inner { height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; flex-direction: column; line-height: 1; min-width: 174px; }
.brand-primary { font: 900 30px/1 Arial, sans-serif; letter-spacing: -1.8px; }
.brand-primary span, .footer-brand strong span { color: #167c78; margin-left: 3px; }
.brand-sub { margin-top: 8px; color: var(--muted); font: 700 8px/1 Arial, sans-serif; letter-spacing: 1.5px; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { padding: 11px 12px; font-size: 14px; font-weight: 700; border-radius: 999px; }
.site-nav a:hover, .site-nav a.active { background: var(--ink); color: var(--white); }
.site-nav .nav-lab { margin-left: 5px; border: 1px solid var(--line); }
.nav-toggle { display: none; width: 46px; height: 42px; padding: 11px; border: 1px solid var(--line); background: transparent; border-radius: 12px; }
.nav-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); transition: transform .2s; }

.kicker { margin: 0 0 18px; color: #167c78; font: 800 11px/1.3 Arial, sans-serif; letter-spacing: 2.2px; text-transform: uppercase; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 12px 21px; border: 1px solid currentColor; border-radius: 999px; font-weight: 800; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: var(--ink); background: var(--acid); border-color: var(--acid); }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; border-bottom: 2px solid var(--acid); }
.text-link::after { content: "→"; }

.home-hero { min-height: 690px; color: var(--white); background: var(--ink); position: relative; overflow: hidden; }
.home-hero::before { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to right, transparent 0, #000 38%, #000 100%); }
.home-hero::after { content: ""; position: absolute; width: 500px; height: 500px; right: -190px; bottom: -260px; border: 80px solid rgba(53, 209, 197, .12); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.03fr .97fr; gap: 70px; align-items: center; min-height: 690px; padding: 70px 0; }
.hero-copy h1 { max-width: 690px; margin: 0; font-size: clamp(52px, 6.2vw, 84px); line-height: .98; letter-spacing: -.065em; }
.hero-copy h1 span { color: var(--acid); }
.hero-copy > p:not(.kicker) { max-width: 650px; margin: 28px 0; color: #c9d3dc; font-size: 18px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-actions .button:not(.primary) { color: var(--white); border-color: rgba(255,255,255,.5); }
.trust-line { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.trust-line span { padding: 7px 10px; color: #aab7c3; border: 1px solid rgba(255,255,255,.16); font-size: 12px; }
.hero-instrument { position: relative; padding: 20px; background: rgba(16, 33, 56, .85); border: 1px solid rgba(255,255,255,.18); box-shadow: 0 35px 110px rgba(0,0,0,.3); transform: rotate(1.2deg); }
.instrument-head, .instrument-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; color: #9fb0bf; font: 700 9px/1 Arial, sans-serif; letter-spacing: 1.4px; }
.instrument-head i { color: var(--acid); font-style: normal; }
.signal-orbit { position: relative; aspect-ratio: 1 / .82; min-height: 360px; margin: 22px 0; border: 1px solid rgba(255,255,255,.15); background: radial-gradient(circle at center, rgba(53,209,197,.18), transparent 43%); }
.signal-orbit::before, .signal-orbit::after { content: ""; position: absolute; inset: 16% 11%; border: 1px dashed rgba(184,243,91,.4); border-radius: 50%; transform: rotate(-12deg); }
.signal-orbit::after { inset: 29% 23%; border-color: rgba(53,209,197,.45); transform: rotate(18deg); }
.orbit-core { position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 108px; height: 108px; display: grid; place-items: center; background: var(--acid); color: var(--ink); border-radius: 50%; font: 900 26px/1 Arial, sans-serif; box-shadow: 0 0 0 16px rgba(184,243,91,.08); }
.orbit-core em { font-style: normal; color: #167c78; }
.signal-orbit b { position: absolute; z-index: 3; padding: 6px 9px; background: var(--ink); border: 1px solid rgba(255,255,255,.2); color: #dbe4e9; font-size: 11px; }
.signal-orbit b:nth-child(1) { left: 7%; top: 17%; }.signal-orbit b:nth-child(2) { right: 7%; top: 12%; }.signal-orbit b:nth-child(3) { right: 3%; top: 48%; }.signal-orbit b:nth-child(4) { right: 13%; bottom: 10%; }.signal-orbit b:nth-child(5) { left: 10%; bottom: 9%; }.signal-orbit b:nth-child(6) { left: 2%; top: 52%; }
.instrument-foot { padding-top: 15px; border-top: 1px solid rgba(255,255,255,.12); }

.evidence-strip { background: var(--acid); border-bottom: 1px solid var(--ink); }
.evidence-strip .shell { display: grid; grid-template-columns: repeat(4, 1fr); }
.evidence-strip div div { min-height: 120px; padding: 24px 28px; display: flex; align-items: center; gap: 15px; border-left: 1px solid rgba(8,17,31,.25); }
.evidence-strip div div:last-child { border-right: 1px solid rgba(8,17,31,.25); }
.evidence-strip strong { font: 900 36px/1 Arial, sans-serif; }
.evidence-strip span { font-size: 13px; line-height: 1.4; }

.home-section, .hub-index, .glossary-section, .about-section, .policy-section, .disclosure-section, .correction-section, .data-section { padding: 108px 0; }
.section-heading { max-width: 760px; margin-bottom: 40px; }
.section-heading.split { max-width: none; display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; }
.section-heading h2, .framework-copy h2, .home-cta h2, .tool-guide h2, .about-grid h2 { margin: 0; font-size: clamp(34px, 4vw, 55px); line-height: 1.06;; letter-spacing: -.045em; }
.section-heading > p:not(.kicker), .section-heading.split > p { margin: 16px 0 0; color: var(--muted); }
.content-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.home-cards { grid-template-columns: repeat(3, 1fr); }
.content-card { min-height: 320px; padding: 30px; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); box-shadow: 0 1px 0 rgba(8,17,31,.08); transition: transform .2s, box-shadow .2s, border-color .2s; }
.content-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(8,17,31,.35); }
.card-top { display: flex; justify-content: space-between; gap: 10px; font-size: 11px; }
.card-top b { color: #167c78; letter-spacing: .08em; }.card-top i { color: var(--muted); font-style: normal; }
.content-card h2 { margin: 30px 0 15px; font-size: 24px; line-height: 1.28; letter-spacing: -.025em; }
.content-card p { margin: 0 0 24px; color: var(--muted); font-size: 14px; }
.card-keyword { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); font-size: 12px; font-weight: 800; }

.framework-section { padding: 110px 0; color: var(--white); background: #122b33; }
.framework-section .shell { display: grid; grid-template-columns: .82fr 1.18fr; gap: 90px; align-items: center; }
.framework-copy > p:not(.kicker) { color: #bdcbd0; }
.framework-steps { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.framework-steps li { min-height: 145px; padding: 24px; display: grid; grid-template-columns: 42px 1fr; align-content: center; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.framework-steps b { color: var(--acid); font: 800 11px/1 Arial, sans-serif; }.framework-steps span { font-size: 22px; font-weight: 800; }.framework-steps p { grid-column: 2; margin: 4px 0 0; color: #9fb0b7; font-size: 13px; }
.framework-copy .text-link { margin-top: 20px; }

.platform-section { padding: 110px 0; background: var(--paper-2); }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.platform-grid a { min-height: 140px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s, color .2s; }
.platform-grid a:hover { color: var(--white); background: var(--ink); }
.platform-grid strong { font-size: 18px; }.platform-grid span { color: var(--muted); font-size: 11px; }.platform-grid a:hover span { color: var(--acid); }
.platform-note { margin-top: 16px; color: var(--muted); font-size: 12px; }

.ecosystem-section { padding: 110px 0; background: var(--white); }
.ecosystem-map { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; }
.ecosystem-map a { min-height: 240px; padding: 28px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid var(--line); background: var(--paper); }
.ecosystem-map .eco-main { color: var(--white); background: var(--ink); }
.ecosystem-map span { color: #167c78; font: 800 10px/1 Arial, sans-serif; letter-spacing: 1.5px; }.ecosystem-map .eco-main span { color: var(--acid); }
.ecosystem-map strong { margin: 16px 0 4px; font-size: 22px; }.ecosystem-map p { margin: 0; color: var(--muted); font-size: 13px; }.ecosystem-map .eco-main p { color: #aebbc5; }
.ecosystem-disclosure { margin: 20px 0 0; color: var(--muted); font-size: 13px; }.ecosystem-disclosure a { font-weight: 800; text-decoration: underline; }
.home-cta { padding: 100px 0; text-align: center; color: var(--white); background: var(--ink); }
.home-cta p:not(.kicker) { max-width: 600px; margin: 20px auto 30px; color: #afbdc8; }.home-cta .button { margin: 5px; }.home-cta .button:not(.primary) { color: var(--white); }

.hub-hero { min-height: 475px; padding: 100px 0 70px; color: var(--white); background: var(--ink); position: relative; overflow: hidden; }
.hub-hero::after { content: attr(data-mark); position: absolute; right: -20px; bottom: -80px; color: rgba(255,255,255,.04); font: 900 240px/1 Arial, sans-serif; }
.hub-hero .shell { position: relative; }
.hub-hero h1, .policy-hero h1 { max-width: 900px; margin: 0; font-size: clamp(50px, 7vw, 88px); line-height: 1; letter-spacing: -.06em; }
.hub-hero .shell > p:not(.kicker), .policy-hero .shell > p:not(.kicker) { max-width: 720px; margin: 26px 0 0; color: #bdc9d3; font-size: 18px; }
.hub-hero.compact { min-height: 390px; }
.hub-stat { position: absolute; right: 0; bottom: 0; display: flex; align-items: center; gap: 16px; padding: 20px; border: 1px solid var(--line-dark); }
.hub-stat strong { color: var(--acid); font: 900 48px/1 Arial, sans-serif; }.hub-stat span { color: #abb8c3; font-size: 12px; line-height: 1.45; }
.principle-band { padding: 54px 0; background: var(--acid); }
.principle-band .shell { display: grid; grid-template-columns: .5fr 1.4fr auto; gap: 30px; align-items: center; }
.principle-band strong { font-size: 18px; }.principle-band p { margin: 0; }.principle-band a { font-weight: 900; text-decoration: underline; }

.breadcrumb { padding: 26px 0; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.breadcrumb a { color: #167c78; font-weight: 700; }.breadcrumb span:last-child { overflow: hidden; text-overflow: ellipsis; }
.article-page { background: var(--paper); }
.article-hero { padding: 56px 0 70px; border-bottom: 1px solid var(--line); }
.article-labels { display: flex; gap: 8px; flex-wrap: wrap; }
.article-labels span { padding: 7px 10px; background: var(--ink); color: var(--white); font-size: 11px; }.article-labels span:last-child { color: var(--ink); background: var(--acid); }
.article-hero h1 { max-width: 960px; margin: 28px 0; font-size: clamp(42px, 5.8vw, 72px); line-height: 1.08; letter-spacing: -.055em; }
.article-deck { max-width: 850px; color: var(--muted); font-size: 19px; }
.article-meta { margin: 44px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.article-meta div { padding: 17px 19px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.article-meta dt { color: var(--muted); font-size: 10px; letter-spacing: .12em; }.article-meta dd { margin: 4px 0 0; font-size: 13px; font-weight: 800; }
.article-layout { display: grid; grid-template-columns: 250px minmax(0, 730px); gap: 80px; justify-content: center; padding: 70px 0 110px; }
.toc { position: sticky; top: 108px; align-self: start; display: flex; flex-direction: column; border-left: 1px solid var(--line); }
.toc strong { padding: 0 0 14px 18px; font-size: 12px; }.toc a { padding: 9px 18px; color: var(--muted); font-size: 12px; line-height: 1.45; }.toc a:hover { color: var(--ink); background: var(--paper-2); }.toc .toc-policy { margin-top: 13px; color: #167c78; font-weight: 800; }
.article-body { min-width: 0; }
.answer-box { padding: 26px 28px; margin-bottom: 56px; background: var(--white); border-left: 6px solid var(--acid); box-shadow: 0 12px 40px rgba(8,17,31,.07); }
.answer-box span { color: #167c78; font: 900 10px/1 Arial, sans-serif; letter-spacing: 1.6px; }.answer-box p { margin: 10px 0 0; font-size: 17px; font-weight: 700; }
.article-section { position: relative; padding: 0 0 52px; margin-bottom: 54px; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.section-index { position: absolute; left: -54px; top: 7px; color: #167c78; font: 900 11px/1 Arial, sans-serif; }
.article-section h2, .sources h2 { margin: 0 0 24px; font-size: 32px; line-height: 1.25; letter-spacing: -.03em; }
.article-section p { margin: 0 0 18px; color: #344151; font-size: 16px; }
.article-section ul, .data-rules ul, .disclosure-rules ul, .about-grid ul { margin: 20px 0; padding: 0; list-style: none; }
.article-section li, .data-rules li, .disclosure-rules li, .about-grid li { position: relative; padding: 12px 0 12px 26px; border-bottom: 1px solid var(--line); }
.article-section li::before, .data-rules li::before, .disclosure-rules li::before, .about-grid li::before { content: ""; position: absolute; left: 2px; top: 22px; width: 8px; height: 8px; background: var(--acid); border: 1px solid var(--ink); }
.method-note { margin: 26px 0 0; padding: 22px 24px; color: var(--white); background: var(--ink-2); border-top: 4px solid var(--cyan); }
.method-note strong { color: var(--cyan); font-size: 12px; }.method-note p { margin: 7px 0 0; color: #c3ced7; font-size: 14px; }
.sources { margin-top: 20px; padding: 32px; background: var(--paper-2); }
.sources ol { margin: 0; padding: 0 0 0 20px; }.sources li { padding: 10px 0; }.sources a { font-weight: 800; text-decoration: underline; text-decoration-color: #167c78; }.sources small { display: block; max-width: 100%; overflow: hidden; color: var(--muted); font-size: 10px; white-space: nowrap; text-overflow: ellipsis; }
.sources > p { color: var(--muted); font-size: 12px; }
.article-end { margin-top: 36px; padding-top: 28px; border-top: 3px solid var(--ink); }.article-end p { margin: 6px 0 0; color: var(--muted); }.article-end a { font-weight: 800; text-decoration: underline; }
.related-section { padding: 90px 0; background: var(--ink); color: var(--white); }.related-section h2 { margin: 0 0 30px; font-size: 42px; }.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }.related-card { min-height: 245px; padding: 25px; display: flex; flex-direction: column; border: 1px solid var(--line-dark); }.related-card:hover { border-color: var(--acid); }.related-card span { color: var(--acid); font-size: 10px; }.related-card strong { margin: 18px 0 10px; font-size: 19px; line-height: 1.35; }.related-card p { margin: 0; color: #aebbc5; font-size: 13px; }

.glossary-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.glossary-grid article { min-height: 210px; padding: 25px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }.glossary-grid h2 { margin: 0 0 20px; font-size: 22px; }.glossary-grid p { margin: 0; color: var(--muted); font-size: 13px; }
.glossary-section .method-note { max-width: 760px; margin: 35px auto 0; }
.tool-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }.tool-card { min-height: 300px; padding: 30px; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); }.tool-card:hover { border-color: var(--ink); box-shadow: var(--shadow); }.tool-card span { color: #167c78; font: 900 10px/1 Arial, sans-serif; letter-spacing: 1.4px; }.tool-card h2 { margin: 38px 0 10px; font-size: 26px; }.tool-card p { color: var(--muted); }.tool-card b { margin-top: auto; }
.tool-guide { margin-top: 70px; padding: 50px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; color: var(--white); background: var(--ink); }.tool-guide ol { margin: 0; padding-left: 24px; }.tool-guide li { padding: 9px 0; }.license-note { color: var(--muted); font-size: 12px; }
.data-board { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }.data-board > div { min-height: 330px; padding: 34px; display: flex; flex-direction: column; color: var(--white); background: var(--ink); }.data-board span { color: var(--acid); font: 900 10px/1 Arial, sans-serif; letter-spacing: 1.3px; }.data-board h2 { margin: 36px 0 12px; font-size: 28px; }.data-board p { color: #b7c4ce; }.data-board b { margin-top: auto; color: var(--amber); font-size: 12px; }.data-board a { margin-top: 14px; text-decoration: underline; }.data-rules, .disclosure-rules { max-width: 820px; margin: 70px auto 0; }.data-rules h2, .disclosure-rules h2 { font-size: 36px; }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }.about-grid p { color: var(--muted); }.founder-panel { margin-top: 90px; display: grid; grid-template-columns: 1fr 1fr; }.founder-panel > div { min-height: 310px; padding: 36px; background: var(--white); border: 1px solid var(--line); }.founder-panel > div:first-child { color: var(--white); background: var(--ink); }.founder-panel span, .disclosure-card span { color: #167c78; font: 900 10px/1 Arial, sans-serif; letter-spacing: 1.4px; }.founder-panel > div:first-child span { color: var(--acid); }.founder-panel h2 { margin: 45px 0 12px; font-size: 31px; }.founder-panel p { color: var(--muted); }.founder-panel > div:first-child p { color: #b4c0ca; }.founder-panel a { font-weight: 800; text-decoration: underline; }
.policy-hero { padding: 100px 0; color: var(--white); background: var(--ink); }
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }.policy-grid article { min-height: 310px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }.policy-grid b { color: #167c78; }.policy-grid h2 { margin: 55px 0 14px; font-size: 24px; }.policy-grid p { color: var(--muted); font-size: 14px; }.policy-commitment { margin-top: 70px; padding: 45px; background: var(--acid); }.policy-commitment h2 { margin-top: 0; font-size: 36px; }.policy-commitment a { margin-right: 20px; font-weight: 800; text-decoration: underline; }
.disclosure-section > .shell:first-child { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }.disclosure-card { min-height: 340px; padding: 30px; background: var(--white); border: 1px solid var(--line); display: flex; flex-direction: column; }.disclosure-card h2 { margin: 45px 0 10px; font-size: 27px; }.disclosure-card p { color: var(--muted); }.disclosure-card a, .disclosure-card strong { margin-top: auto; font-weight: 800; text-decoration: underline; }
.correction-section > .shell { display: grid; grid-template-columns: .85fr 1.15fr; gap: 18px; }.correction-empty, .correction-process { padding: 40px; background: var(--white); border: 1px solid var(--line); }.correction-empty span { color: #167c78; font: 900 10px/1 Arial, sans-serif; }.correction-empty h2, .correction-process h2 { margin: 50px 0 16px; font-size: 30px; }.correction-empty p, .correction-process p { color: var(--muted); }.correction-process ol { padding-left: 22px; }.correction-process li { margin: 20px 0; }.correction-process li p { margin: 4px 0; }.correction-process a { font-weight: 800; text-decoration: underline; }
.not-found { min-height: calc(100vh - 82px); display: grid; place-items: center; text-align: center; color: var(--white); background: var(--ink); }.not-found span { color: var(--acid); font: 900 11px/1 Arial, sans-serif; letter-spacing: 2px; }.not-found h1 { max-width: 780px; margin: 24px auto; font-size: clamp(48px, 7vw, 88px); line-height: 1; }.not-found p { color: #b9c5ce; }.not-found .button { margin: 16px 4px; }.not-found .button:not(.primary) { color: var(--white); }

.site-footer { padding: 76px 0 25px; color: #c3cdd6; background: #050c16; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 60px; }
.footer-brand strong { color: var(--white); font: 900 32px/1 Arial, sans-serif; }.footer-brand p { max-width: 420px; color: #8494a3; font-size: 13px; }.footer-grid h2 { margin: 0 0 18px; color: var(--white); font-size: 12px; }.footer-grid a, .footer-grid span { display: block; margin: 9px 0; color: #8999a7; font-size: 12px; }.footer-grid a:hover { color: var(--acid); }
.footer-bottom { margin-top: 58px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #687887; font-size: 10px; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 34px, 760px); }
  .nav-toggle { display: block; }
  .site-nav { position: fixed; inset: 82px 0 auto; padding: 18px 17px 24px; display: none; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 30px 50px rgba(8,17,31,.16); }
  .site-nav[data-open="true"] { display: flex; }.site-nav a { padding: 13px 16px; }.site-nav .nav-lab { margin: 0; }
  .hero-grid, .framework-section .shell { grid-template-columns: 1fr; }.hero-grid { gap: 50px; }.hero-instrument { max-width: 650px; width: 100%; margin: 0 auto; }
  .home-cards { grid-template-columns: 1fr; }.content-card { min-height: 260px; }
  .ecosystem-map { grid-template-columns: 1fr 1fr; }.ecosystem-map .eco-main { grid-column: 1 / -1; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; gap: 30px; }.toc { position: static; display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); }.toc strong, .toc .toc-policy { grid-column: 1 / -1; }.section-index { position: static; display: block; margin-bottom: 10px; }
  .related-grid { grid-template-columns: 1fr; }.related-card { min-height: 190px; }
  .glossary-grid, .policy-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }.footer-grid > div:last-child { grid-column: 2 / -1; }
}

@media (max-width: 680px) {
  :root { --shell: calc(100% - 28px); --radius: 16px; }
  .header-inner { height: 72px; }.site-nav { top: 72px; }.brand-primary { font-size: 26px; }.brand-sub { font-size: 7px; }
  .home-hero, .hero-grid { min-height: auto; }.hero-grid { padding: 72px 0 45px; }.hero-copy h1 { font-size: 48px; }.hero-copy > p:not(.kicker) { font-size: 16px; }.hero-actions { flex-direction: column; }.hero-actions .button { width: 100%; }.trust-line { gap: 6px; }.trust-line span { font-size: 10px; }
  .hero-instrument { padding: 14px; }.signal-orbit { min-height: 295px; }.signal-orbit b { font-size: 9px; }.instrument-foot { flex-wrap: wrap; }
  .evidence-strip .shell { grid-template-columns: repeat(2, 1fr); }.evidence-strip div div { min-height: 92px; padding: 18px 14px; }.evidence-strip strong { font-size: 28px; }.evidence-strip div div:nth-child(2) { border-right: 1px solid rgba(8,17,31,.25); }
  .home-section, .hub-index, .glossary-section, .about-section, .policy-section, .disclosure-section, .correction-section, .data-section { padding: 72px 0; }
  .section-heading.split { grid-template-columns: 1fr; gap: 18px; }.section-heading h2, .framework-copy h2, .home-cta h2, .tool-guide h2, .about-grid h2 { font-size: 37px; }
  .content-grid, .framework-steps, .ecosystem-map, .article-meta, .tool-grid, .data-board, .about-grid, .founder-panel, .policy-grid, .disclosure-section > .shell:first-child, .correction-section > .shell, .glossary-grid { grid-template-columns: 1fr; }
  .ecosystem-map .eco-main { grid-column: auto; }.content-card { min-height: 290px; padding: 24px; }
  .framework-section, .platform-section, .ecosystem-section, .home-cta { padding: 75px 0; }.framework-section .shell { gap: 45px; }.framework-steps li { min-height: 115px; }
  .platform-grid { grid-template-columns: 1fr 1fr; }.platform-grid a { min-height: 115px; padding: 18px; }.platform-grid strong { font-size: 14px; }
  .hub-hero { min-height: 480px; padding: 74px 0 50px; }.hub-hero.compact { min-height: 390px; }.hub-hero h1, .policy-hero h1 { font-size: 49px; }.hub-hero .shell > p:not(.kicker), .policy-hero .shell > p:not(.kicker) { font-size: 16px; }.hub-stat { position: static; width: fit-content; margin-top: 36px; }
  .principle-band .shell { grid-template-columns: 1fr; gap: 12px; }
  .breadcrumb { padding: 18px 0; }.article-hero { padding: 40px 0 50px; }.article-hero h1 { font-size: 42px; }.article-deck { font-size: 16px; }.article-meta div { padding: 14px; }
  .article-layout { padding: 45px 0 70px; }.toc { grid-template-columns: 1fr; }.toc strong, .toc .toc-policy { grid-column: auto; }.answer-box { padding: 22px; }.article-section h2, .sources h2 { font-size: 27px; }.article-section p, .article-section li { font-size: 15px; }.sources { padding: 22px; }
  .related-section { padding: 65px 0; }.related-section h2 { font-size: 35px; }
  .tool-guide { padding: 28px; grid-template-columns: 1fr; gap: 20px; }.policy-hero { padding: 75px 0; }.policy-grid article { min-height: auto; }.policy-commitment { padding: 28px; }.policy-commitment h2 { font-size: 30px; }
  .founder-panel > div, .disclosure-card { min-height: 280px; }.correction-empty, .correction-process { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px 22px; }.footer-brand { grid-column: 1 / -1; }.footer-grid > div:last-child { grid-column: auto; }.footer-bottom { flex-direction: column; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}