:root {
  --paper: #f7f7f4;
  --white: #fff;
  --ink: #0b0b0b;
  --muted: #626262;
  --line: #cfcfca;
  --sans: "Helvetica Neue", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Roboto Mono", "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
summary, a { -webkit-tap-highlight-color: transparent; }
section[id] { scroll-margin-top: 84px; }
.site-header { position: sticky; z-index: 30; top: 0; height: 84px; padding: 0 clamp(28px, 5vw, 76px); display: grid; grid-template-columns: minmax(340px, 1fr) auto auto; align-items: center; gap: 42px; border-bottom: 1px solid var(--ink); background: rgba(247,247,244,.94); backdrop-filter: blur(18px); }
.brand { width: fit-content; display: flex; align-items: center; gap: 14px; }
.brand-mark { width: 43px; height: 43px; display: grid; place-items: center; border: 1px solid var(--ink); font: 700 10px/1 var(--mono); letter-spacing: -.04em; }
.brand-copy { display: grid; gap: 3px; line-height: 1.15; }
.brand-copy strong { font-size: 13px; font-weight: 650; letter-spacing: -.02em; }
.brand-copy small { color: var(--muted); font: 500 7px/1.2 var(--mono); letter-spacing: .09em; }
.desktop-nav { display: flex; gap: clamp(20px, 2.4vw, 38px); font-size: 11px; }
.desktop-nav a { position: relative; padding: 10px 0; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 3px; height: 1px; background: var(--ink); transition: right .22s ease; }
.desktop-nav a:hover::after { right: 0; }
.header-cta { min-height: 42px; padding: 0 16px; display: inline-flex; align-items: center; gap: 28px; color: var(--white); background: var(--ink); border: 1px solid var(--ink); font: 600 10px/1 var(--sans); transition: color .2s ease, background .2s ease, transform .12s ease; }
.header-cta:hover { color: var(--ink); background: transparent; }
.header-cta:active { transform: scale(.97); }
.mobile-menu { display: none; }
.hero { min-height: calc(100vh - 84px); padding: 28px clamp(28px,5vw,76px) 0; display: flex; flex-direction: column; border-bottom: 1px solid var(--ink); background-image: linear-gradient(to right, rgba(11,11,11,.055) 1px, transparent 1px); background-size: 8.333% 100%; }
.hero-meta { padding: 10px 0 28px; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .11em; }
.hero-grid { flex: 1; display: grid; grid-template-columns: minmax(0,1.55fr) minmax(290px,.45fr); }
.hero-main { padding: clamp(52px,7vw,104px) clamp(36px,6vw,92px) 64px 0; }
.section-label { margin: 0 0 30px; font: 600 9px/1 var(--mono); letter-spacing: .15em; }
.hero h1 { max-width: 1050px; margin: 0; font-size: clamp(62px,7.15vw,110px); font-weight: 540; line-height: .98; letter-spacing: -.075em; }
.hero h1 em { font-style: normal; -webkit-text-stroke: 1.3px var(--ink); color: transparent; }
.hero-lede { max-width: 740px; margin: 52px 0 0; font-size: 17px; line-height: 1.9; letter-spacing: -.012em; }
.hero-aside { border-left: 1px solid var(--ink); display: grid; grid-template-columns: repeat(3,1fr); grid-template-rows: 1fr 104px; }
.hero-diagram { position: relative; grid-column: 1/-1; min-height: 350px; overflow: hidden; }
.hero-diagram .axis { position: absolute; display: block; background: var(--line); }
.axis-x { left: 10%; right: 10%; top: 50%; height: 1px; }
.axis-y { top: 10%; bottom: 10%; left: 50%; width: 1px; }
.node { position: absolute; width: 9px; height: 9px; border: 1px solid var(--ink); border-radius: 50%; background: var(--paper); }
.node-a { left: calc(10% - 4px); top: calc(50% - 4px); }
.node-b { left: calc(50% - 4px); top: calc(10% - 4px); }
.node-c { right: calc(10% - 4px); top: calc(50% - 4px); background: var(--ink); }
.node-d { left: calc(50% - 4px); bottom: calc(10% - 4px); }
.hero-diagram strong { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-54%); font: 500 clamp(68px,6vw,94px)/1 var(--sans); letter-spacing: -.1em; }
.hero-diagram small { position: absolute; left: 22px; bottom: 22px; font: 500 7px/1.6 var(--mono); letter-spacing: .09em; }
.hero-stat { padding: 18px 14px; display: flex; flex-direction: column; justify-content: space-between; border-top: 1px solid var(--ink); border-right: 1px solid var(--line); }
.hero-stat:last-child { border-right: 0; }
.hero-stat strong { font: 500 28px/1 var(--mono); letter-spacing: -.08em; }
.hero-stat span { color: var(--muted); font-size: 10px; }
.scroll-cue { height: 74px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--ink); font: 600 9px/1 var(--mono); letter-spacing: .13em; }
.scroll-cue b { font-size: 18px; font-weight: 400; transition: transform .2s ease; }
.scroll-cue:hover b { transform: translateY(4px); }
.section-pad { padding: clamp(92px,9vw,146px) clamp(28px,5vw,76px); }
.section-index { color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .12em; }
.statement { display: grid; grid-template-columns: 180px minmax(0,1.3fr) minmax(320px,.7fr); border-bottom: 1px solid var(--ink); }
.statement > * { padding: clamp(76px,8vw,126px) clamp(28px,4vw,64px); }
.statement > * + * { border-left: 1px solid var(--line); }
.statement-copy > p { margin: 0 0 28px; font-size: 13px; }
.statement-copy h2 { margin: 0; font-size: clamp(42px,4.2vw,68px); font-weight: 520; line-height: 1.2; letter-spacing: -.055em; }
.statement-notes { display: grid; align-content: end; gap: 28px; }
.statement-notes p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.95; }
.section-head { display: grid; grid-template-columns: 180px minmax(0,1fr) minmax(280px,410px); align-items: end; gap: 48px; }
.section-head h2 { margin: 0; font-size: clamp(48px,5.2vw,78px); font-weight: 520; line-height: 1.06; letter-spacing: -.065em; }
.section-head > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }
.pillar-list { margin-top: 86px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.pillar { min-height: 480px; padding: 28px 30px 34px; display: flex; flex-direction: column; border-right: 1px solid var(--ink); transition: background .22s ease; }
.pillar:last-child { border-right: 0; }
.pillar:hover { background: var(--white); }
.pillar-top { display: flex; justify-content: space-between; font: 600 9px/1 var(--mono); letter-spacing: .12em; }
.pillar-top span { color: var(--muted); }
.pillar h3 { margin: auto 0 26px; font-size: clamp(32px,3vw,48px); font-weight: 540; letter-spacing: -.05em; }
.pillar > p { min-height: 108px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.tag-list { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 7px; }
.tag-list span { padding: 7px 9px; border: 1px solid var(--line); font: 500 8px/1 var(--mono); letter-spacing: .07em; }
.path { border-top: 1px solid var(--ink); }
.path-table { margin-top: 86px; border-top: 1px solid var(--ink); }
.path-row { min-height: 112px; display: grid; grid-template-columns: 90px 1fr 1.35fr 1.35fr; align-items: center; gap: 34px; border-bottom: 1px solid var(--line); }
.path-header { min-height: 50px; color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .1em; }
.path-number { font: 500 12px/1 var(--mono); }
.path-row h3 { margin: 0; font-size: 24px; font-weight: 560; letter-spacing: -.035em; }
.path-row p, .path-row strong { margin: 0; font-size: 13px; line-height: 1.75; }
.path-row p { color: var(--muted); }
.path-row strong { font-weight: 540; }
.principle { padding: clamp(90px,10vw,170px) clamp(28px,8vw,130px); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); text-align: center; background: var(--white); }
.principle-rule { display: grid; grid-template-columns: repeat(5,1fr); border-top: 1px solid var(--ink); }
.principle-rule span { padding: 13px 6px; border-right: 1px solid var(--line); font: 500 7px/1 var(--mono); letter-spacing: .11em; }
.principle-rule span:last-child { border-right: 0; }
.principle blockquote { max-width: 1160px; margin: clamp(68px,8vw,112px) auto 38px; font-size: clamp(40px,4.75vw,72px); font-weight: 500; line-height: 1.34; letter-spacing: -.06em; }
.principle > p { margin: 0; color: var(--muted); font-size: 11px; }
.initiative-grid { margin-top: 86px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.initiative-grid article { min-height: 270px; padding: 26px 28px; display: flex; flex-direction: column; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.initiative-grid article > span { color: var(--muted); font: 500 9px/1 var(--mono); }
.initiative-grid h3 { margin: auto 0 18px; font-size: 27px; font-weight: 560; letter-spacing: -.04em; }
.initiative-grid p { min-height: 76px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.connect { padding: clamp(88px,9vw,146px) clamp(28px,5vw,76px); display: grid; grid-template-columns: minmax(0,1.35fr) minmax(320px,.65fr); gap: 100px; color: var(--white); background: var(--ink); }
.connect h2 { max-width: 900px; margin: 0; font-size: clamp(50px,6vw,88px); font-weight: 520; line-height: 1.06; letter-spacing: -.065em; }
.connect-copy { display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; }
.connect-copy p { margin: 0 0 40px; color: #bcbcbc; font-size: 14px; line-height: 1.9; }
.connect-copy a { min-width: 220px; min-height: 54px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: space-between; color: var(--ink); background: var(--white); border: 1px solid var(--white); font: 600 10px/1 var(--sans); transition: color .2s ease, background .2s ease, transform .12s ease; }
.connect-copy a:hover { color: var(--white); background: transparent; }
.connect-copy a:active { transform: scale(.97); }
footer { min-height: 112px; padding: 0 clamp(28px,5vw,76px); display: grid; grid-template-columns: 1fr auto 32px; align-items: center; gap: 40px; border-top: 1px solid #363636; color: #a8a8a8; background: var(--ink); }
footer > div { display: grid; gap: 5px; }
footer strong { color: var(--white); font-size: 11px; font-weight: 550; }
footer span, footer p { margin: 0; font: 500 7px/1.4 var(--mono); letter-spacing: .09em; }
footer > a { color: var(--white); font-size: 20px; text-align: right; transition: transform .2s ease; }
footer > a:hover { transform: translateY(-3px); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.connect a:focus-visible, footer a:focus-visible { outline-color: var(--white); }
@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .hero-grid { grid-template-columns: 1fr 310px; }
  .statement { grid-template-columns: 120px 1fr; }
  .statement-notes { grid-column: 1/-1; border-top: 1px solid var(--line); border-left: 0 !important; grid-template-columns: repeat(2,1fr); }
  .section-head { grid-template-columns: 120px 1fr; }
  .section-head > p { grid-column: 2; }
  .path-row { grid-template-columns: 60px .8fr 1.2fr 1.2fr; gap: 22px; }
}
@media (max-width: 760px) {
  section[id] { scroll-margin-top: 68px; }
  .site-header { height: 68px; padding: 0 18px; grid-template-columns: 1fr auto; gap: 12px; }
  .brand { gap: 10px; }
  .brand-mark { width: 36px; height: 36px; font-size: 9px; }
  .brand-copy strong { font-size: 10px; }
  .brand-copy small, .header-cta { display: none; }
  .mobile-menu { position: relative; display: block; }
  .mobile-menu summary { list-style: none; padding: 10px 0; font: 600 9px/1 var(--mono); letter-spacing: .12em; cursor: pointer; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu[open] nav { animation: menu-in .18s ease-out; }
  .mobile-menu nav { position: absolute; right: 0; top: 38px; width: min(78vw,280px); display: grid; border: 1px solid var(--ink); background: var(--paper); box-shadow: 12px 12px 0 var(--ink); }
  .mobile-menu nav a { padding: 17px 18px; border-bottom: 1px solid var(--line); font-size: 13px; }
  .mobile-menu nav a:last-child { color: var(--white); border: 0; background: var(--ink); }
  .hero { min-height: auto; padding: 18px 18px 0; background-size: 25% 100%; }
  .hero-meta { padding: 8px 0 20px; font-size: 6px; }
  .hero-meta span:last-child { display: none; }
  .hero-grid { display: block; }
  .hero-main { padding: 52px 0 60px; }
  .section-label { margin-bottom: 24px; font-size: 7px; }
  .hero h1 { font-size: clamp(50px,15vw,68px); line-height: 1.01; letter-spacing: -.072em; }
  .hero h1 em { -webkit-text-stroke-width: 1px; }
  .hero-lede { margin-top: 38px; font-size: 15px; line-height: 1.85; }
  .hero-aside { border-top: 1px solid var(--ink); border-left: 0; grid-template-rows: 260px 88px; }
  .hero-diagram { min-height: 260px; }
  .hero-diagram strong { font-size: 68px; }
  .hero-stat { padding: 15px 10px; }
  .hero-stat strong { font-size: 23px; }
  .hero-stat span { font-size: 8px; }
  .scroll-cue { height: 62px; }
  .section-pad { padding: 82px 18px; }
  .statement { display: block; }
  .statement > * { padding: 64px 18px; }
  .statement > * + * { border-top: 1px solid var(--line); border-left: 0; }
  .statement > .section-index { padding: 22px 18px; }
  .statement-copy h2 { font-size: clamp(36px,10.8vw,48px); line-height: 1.22; }
  .statement-notes { display: grid; grid-template-columns: 1fr; gap: 24px; }
  .section-head { display: block; }
  .section-head .section-index { margin-bottom: 46px; }
  .section-head h2 { font-size: clamp(43px,13vw,58px); line-height: 1.05; }
  .section-head > p { margin-top: 28px; font-size: 14px; }
  .pillar-list { margin-top: 54px; display: block; }
  .pillar { min-height: 380px; padding: 24px 18px 28px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .pillar:last-child { border-bottom: 0; }
  .pillar h3 { margin-top: 96px; }
  .pillar > p { min-height: 0; }
  .path-table { margin-top: 54px; }
  .path-header { display: none; }
  .path-row { min-height: 0; padding: 26px 0; display: grid; grid-template-columns: 44px 1fr; grid-template-areas: "number title" "number action" "number result"; gap: 9px 16px; align-items: start; }
  .path-number { grid-area: number; padding-top: 4px; }
  .path-row h3 { grid-area: title; font-size: 23px; }
  .path-row p { grid-area: action; }
  .path-row strong { grid-area: result; padding-top: 6px; }
  .principle { padding: 82px 18px; text-align: left; }
  .principle-rule { grid-template-columns: repeat(5,minmax(0,1fr)); }
  .principle-rule span { padding: 10px 2px; overflow: hidden; font-size: 5px; text-align: center; letter-spacing: .02em; }
  .principle blockquote { margin: 64px 0 30px; font-size: clamp(34px,10vw,44px); line-height: 1.42; }
  .initiative-grid { margin-top: 54px; grid-template-columns: 1fr; }
  .initiative-grid article { min-height: 220px; padding: 22px 18px; }
  .initiative-grid h3 { margin-top: 64px; }
  .initiative-grid p { min-height: 0; }
  .connect { padding: 82px 18px; display: block; }
  .connect h2 { font-size: clamp(44px,13vw,60px); }
  .connect-copy { margin-top: 58px; }
  .connect-copy a { width: 100%; }
  footer { min-height: 170px; padding: 28px 18px; grid-template-columns: 1fr 24px; align-content: center; gap: 18px; }
  footer p { grid-column: 1; }
  footer > a { grid-column: 2; grid-row: 1/span 2; }
}
@media (hover: none) { .header-cta:hover, .connect-copy a:hover { transform: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
@keyframes menu-in { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }