/* V2：内容优先的精简视觉系统。基础内容与可视化样式仍由 style.css 提供。 */
:root {
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: var(--sans); --serif: var(--sans); --header-height: 64px;
  --accent: #0071e3; --action-fill: #0071e3; --action-hover: #0066cc; --measure: 720px; --radius: 28px;
}
:root[data-theme='light'] {
  --bg: #fff; --paper: #fff; --surface: #f5f5f7; --card: #f5f5f7; --card-hover: #ededf0;
  --text: #1d1d1f; --soft: #424245; --muted: #6e6e73; --faint: #737379;
  --line: #e5e5e9; --line-strong: #d2d2d7; --chart-grid: #e8e8ed; --chart-text: #515154;
  --d-physics: #0066cc; --d-biology: #288345; --d-economics: #956b18; --d-game: #087d8b;
  --d-psychology: #ad457c; --d-systems: #7755b8; --d-strategy: #b95436;
  --shadow: 0 20px 50px -18px #0002, 0 2px 8px #00000005;
}
:root[data-theme='dark'] {
  --bg: #000; --paper: #1c1c1e; --surface: #101012; --card: #1c1c1e; --card-hover: #28282b;
  --text: #f5f5f7; --soft: #d2d2d7; --muted: #a1a1a6; --faint: #98989d; --accent: #2997ff;
  --line: #303033; --line-strong: #48484a; --chart-grid: #303033; --chart-text: #b9b9be;
  --d-physics: #64aaff; --d-biology: #67c784; --d-economics: #e5b755; --d-game: #59c8d4;
  --d-psychology: #e48db9; --d-systems: #b59aec; --d-strategy: #fa9f7b;
  --shadow: 0 20px 50px -18px #0008, 0 2px 8px #0003;
}
html { scroll-padding-top: calc(var(--header-height) + 24px); }
body { font: 400 17px/1.65 var(--sans); letter-spacing: -.012em; }
h1, h2, h3, h4 { font-family: var(--sans); letter-spacing: -.035em; font-weight: 600; }
a, button, input, summary { -webkit-tap-highlight-color: transparent; }
button, input { font-family: inherit; }
button { color: inherit; }
[hidden] { display: none !important; }
.mobile-only { display: none; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.wrap { max-width: 1280px; padding: 0 48px; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 100; padding: 10px 18px; background: var(--paper); border-radius: 12px; color: var(--text); }
.skip-link:focus { top: 10px; }
.site-header { background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); backdrop-filter: blur(22px) saturate(1.5); -webkit-backdrop-filter: blur(22px) saturate(1.5); }
.header-inner { height: var(--header-height); gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font: 600 19px/1 var(--sans); letter-spacing: -.045em; }
.brand-mark { width: 28px; height: 28px; overflow: visible; flex: none; }
.brand-mark path { stroke: var(--text); stroke-width: 1.2; fill: none; }
.brand-mark circle { fill: var(--bg); stroke: var(--text); stroke-width: 1.6; }
.header-inner nav { gap: 36px; font-size: 12px; color: var(--soft); letter-spacing: 0; }
.header-inner nav a { display: flex; align-items: center; min-height: 44px; min-width: 44px; text-decoration: none; padding: 0; border: 0; }
.header-inner nav a.on { color: var(--text); font-weight: 600; }
.header-inner nav a:hover { color: var(--accent); }
.theme-toggle { width: 44px; height: 44px; display: grid; place-items: center; border: 0; background: none; font-size: 20px; color: var(--soft); border-radius: 50%; }
.theme-toggle:hover { background: var(--card); }
.theme-toggle svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: none; border-radius: 50%; cursor: pointer; padding: 13px; }
.menu-toggle span { height: 1.5px; width: 18px; display: block; margin: 5px 0; background: var(--text); transition: transform .2s; }
.primary-button, .text-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; font-size: 15px; line-height: 1.2; text-decoration: none; gap: 10px; }
.primary-button { background: var(--action-fill); color: #fff; padding: 13px 24px; border: 0; border-radius: 999px; cursor: pointer; }
.primary-button:hover { background: var(--action-hover); }
.text-button { color: var(--accent); padding: 12px 6px; }
.text-button:hover { text-decoration: underline; text-underline-offset: 4px; }
.text-button span { font-size: 25px; line-height: .7; }
.hero { text-align: center; padding-top: 62px; padding-bottom: 39px; overflow: hidden; }
.hero-eyebrow { margin: 0 0 15px; font-size: 17px; font-weight: 600; color: var(--soft); }
.hero h1 { font-size: clamp(46px, 5.8vw, 80px); line-height: 1.13; letter-spacing: -.055em; font-weight: 650; margin: 0; }
.hero-description { margin: 24px auto 20px; font-size: 20px; line-height: 1.65; color: var(--muted); letter-spacing: -.02em; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 26px; }
.orbit-art { position: relative; height: 290px; margin: 33px -48px 0; overflow: hidden; }
.orbit-stage { position: absolute; width: 1050px; height: 275px; left: 50%; transform: translateX(-50%); }
.orbit-card { position: absolute; width: 164px; height: 202px; left: 50%; margin-left: -82px; top: 14px; display: flex; flex-direction: column; align-items: center; text-decoration: none; border: 1px solid color-mix(in srgb, var(--dc) 10%, var(--line)); border-radius: 26px; background: color-mix(in srgb, var(--dc) 5%, var(--paper)); box-shadow: 0 16px 34px -20px #0004, inset 0 1px 1px #ffffff80; transform: translate(var(--x), var(--y)) rotate(var(--rotation)); z-index: var(--z); transition: transform .3s cubic-bezier(.2,.65,.3,1), box-shadow .3s; }
.orbit-card:hover, .orbit-card:focus-visible { transform: translate(var(--x), calc(var(--y) - 12px)) rotate(var(--rotation)); box-shadow: 0 24px 42px -20px #0005; }
.orbit-domain { margin-top: 19px; font-size: 11px; color: var(--muted); }
.orbit-card .glyph { width: 80px; height: 80px; margin-top: 13px; }
.orbit-card .glyph svg { stroke-width: 1.7; }
.orbit-title { margin: auto 8px 20px; font-size: 16px; font-weight: 600; letter-spacing: -.025em; color: var(--text); }
.hero-facts { display: flex; justify-content: center; color: var(--muted); font-size: 12px; gap: 0; margin: 6px auto 0; }
.hero-facts span + span { border-left: 1px solid var(--line-strong); margin-left: 19px; padding-left: 19px; }
.explore-surface { background: var(--surface); padding: 78px 0 90px; }
.section-heading { margin-bottom: 32px; }
.section-heading h2 { font-size: clamp(30px, 3.1vw, 42px); line-height: 1.2; letter-spacing: -.045em; }
.section-heading > p { color: var(--muted); font-size: 17px; margin: 15px 0 0; }
.discovery-layout { display: grid; grid-template-columns: 410px minmax(0, 1fr); gap: 24px; align-items: stretch; }
.lead { display: flex; flex-direction: column; gap: 0; padding: 0; border: 0; border-radius: var(--radius); overflow: hidden; position: relative; min-height: 480px; background: #16181d; color: #f5f5f7; }
.lead-art { position: absolute; inset: 0; aspect-ratio: auto; background: none; border: 0; border-radius: inherit; }
.lead-art .glyph { width: 242px; height: 242px; top: 35px; left: auto; right: -25px; bottom: auto; color: #b6d4ff; opacity: .28; transform: rotate(-15deg); }
.lead-art .glyph svg { stroke-width: .9; }
.lead-art .no, .lead-art .nm { display: none; }
.lead-text { text-align: left; position: relative; pointer-events: none; padding: 31px 32px 29px; height: 100%; display: flex; flex-direction: column; align-items: flex-start; flex: 1; }
.lead-text .kicker { font: 500 12px/1.5 var(--sans); letter-spacing: 0; color: #b1b5be; margin: 0 0 77px; }
.lead-text h2 { display: block; font-size: 40px; line-height: 1.15; letter-spacing: -.045em; margin: 0 0 12px; max-width: 9em; }
.lead-text .en { color: #aab8cc; font: 400 13px/1.4 var(--sans); }
.lead-text p:not(.kicker) { font: 400 20px/1.6 var(--sans); color: #f5f5f7; margin: 23px 0 14px; max-width: none; }
.lead-text .by { color: #b0b5bf; font-size: 12px; line-height: 1.7; margin-top: 0; max-width: 23em; }
.lead-text .btn-line { display: inline-flex; align-items: center; min-height: 44px; gap: 15px; font-size: 14px; color: #fff; text-decoration: none; margin-top: auto; border: 0; padding: 23px 0 0; pointer-events: auto; letter-spacing: 0; }
.lead-text .btn-line span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid #ffffff40; border-radius: 50%; }
.lead-text .btn-line:hover span { background: #fff; color: #16181d; }
.graph-panel { min-width: 0; background: var(--paper); border-radius: var(--radius); padding: 29px 28px 20px; }
.panel-heading { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; }
.panel-heading h2 { font-size: 23px; letter-spacing: -.035em; }
.panel-heading p { font-size: 12px; line-height: 1.5; color: var(--muted); margin: 7px 0 0; }
.graph-tools { display: flex; gap: 0; margin: -9px -9px 0 0; }
.graph-tools button { width: 44px; height: 44px; border: 0; background: none; color: var(--muted); border-radius: 12px; cursor: pointer; font-size: 21px; }
.graph-tools button:hover { background: var(--card); color: var(--text); }
.home-graph { height: 330px; margin-top: 8px; border: 0; background: none; border-radius: 0; }
.graph-bottom { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.legend { display: flex; flex-wrap: wrap; margin: 0; gap: 2px 11px; font-size: 10px; }
.legend a { min-height: 32px; }
.legend .dot { width: 5px; height: 5px; margin-right: 5px; }
.graph-bottom > span { color: var(--muted); font-size: 10px; white-space: nowrap; }
.preview { border-radius: 18px; padding: 22px; max-width: calc(100% - 32px); }
.preview .no, .preview .en { font-family: var(--sans); letter-spacing: 0; }
.preview h4 { font-size: 27px; }
.preview p { font: 400 15px/1.6 var(--sans); }
#catalogue { padding-top: 95px; scroll-margin-top: 80px; }
.catalogue-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 36px; }
.catalogue-heading h2 { font-size: clamp(32px, 3.8vw, 48px); line-height: 1.18; }
.catalogue-heading > p { font-size: 17px; line-height: 1.6; color: var(--muted); margin: 0 0 4px; }
.toolbar { position: sticky; top: var(--header-height); padding: 15px 0; border: 0; background: color-mix(in srgb, var(--surface) 90%, transparent); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); gap: 24px; }
.search { border: 1px solid var(--line); border-radius: 13px; background: var(--paper); min-width: 0; flex: 1 1 330px; }
.search input { padding: 0 35px 0 39px; height: 46px; font-size: 14px; border-radius: inherit; }
.search svg { left: 15px; width: 15px; height: 15px; }
.search kbd { right: 13px; font-size: 11px; color: var(--muted); padding: 0 5px; }
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent); }
.tabs { justify-content: flex-end; gap: 4px; font-size: 13px; flex: 0 1 auto; }
.tab { padding: 9px 14px; border: 0; border-radius: 999px; min-height: 44px; letter-spacing: -.01em; }
.tab.on { color: var(--bg); background: var(--text); font-weight: 500; }
.tab:not(.on):hover { background: color-mix(in srgb, var(--text) 6%, transparent); color: var(--text); }
.search-feedback { display: flex; gap: 16px; align-items: center; min-height: 38px; font-size: 12px; color: var(--muted); }
.search-feedback button { background: none; color: var(--accent); cursor: pointer; border: 0; font-size: 12px; min-height: 38px; padding: 0 4px; }
.domain-sec { padding-top: 0; scroll-margin-top: 165px; }
.domain-head { padding: 31px 0 20px; margin: 0; border: 0; gap: 12px; }
.domain-head .glyph { width: 27px; height: 27px; }
.domain-head > div { display: flex; align-items: baseline; gap: 18px; }
.domain-head h2 { font: 600 23px/1.3 var(--sans); color: var(--text); letter-spacing: -.035em; }
.domain-head p { font: 400 12px/1.5 var(--sans); margin: 0; color: var(--muted); }
.domain-head .n { font-size: 12px; letter-spacing: 0; }
.grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card { min-height: 263px; background: var(--paper); border-radius: 24px; border: 0; padding: 25px 26px 22px; display: flex; flex-direction: column; transition: box-shadow .22s, transform .22s; }
.card .glyph { position: static; width: 43px; height: 43px; padding: 8px; background: color-mix(in srgb, var(--dc) 8%, var(--paper)); border-radius: 12px; opacity: 1; margin-bottom: 21px; }
.card .glyph svg { stroke-width: 1.7; }
.card .no { position: absolute; top: 38px; right: 25px; color: var(--muted); font: 400 10px/1.4 var(--sans); letter-spacing: 0; }
.card .no > span { margin-left: 8px; opacity: .85; }
.card h3 { font-size: 24px; font-weight: 600; letter-spacing: -.035em; margin: 0 0 7px; }
.card .en { font: 400 12px/1.4 var(--sans); color: var(--muted); }
.card p { font: 400 15px/1.65 var(--sans); color: var(--soft); margin: 17px 0 25px; }
.card-footer { margin-top: auto; display: flex; gap: 15px; align-items: flex-end; width: 100%; }
.card .who { font-size: 11px; line-height: 1.6; color: var(--muted); flex: 1; }
.card-arrow { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: var(--card); color: var(--soft); flex: none; font-size: 15px; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); background: var(--paper); }
.card:hover .glyph { transform: none; }
.card:hover h3 { color: var(--text); }
.card:hover .card-arrow { color: #fff; background: var(--action-fill); }
.empty { padding: 72px 20px; color: var(--muted); font-family: var(--sans); }
.empty h3 { font-size: 26px; color: var(--text); }
.empty p { font-size: 15px; margin: 14px 0 22px; }
.sec-head { padding: 90px 0 28px; align-items: center; }
.sec-head h2 { font-size: 36px; letter-spacing: -.045em; }
.sec-head span { font-size: 13px; letter-spacing: 0; }
.people-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.pcard { background: var(--paper); border: 0; border-radius: 24px; padding: 28px 24px 26px; min-height: 235px; transition: transform .22s, box-shadow .22s; }
.pcard .mono { font: 600 min(23px, calc(64px / var(--name-length, 2)))/1 var(--sans); display: flex; align-items: center; justify-content: center; width: 74px; height: 74px; border-radius: 22px; background: color-mix(in srgb, var(--dc) 9%, var(--paper)); color: var(--dc); margin: 0 0 27px; letter-spacing: -.04em; }
.pcard b { font: 600 17px/1.4 var(--sans); letter-spacing: -.025em; }
.pcard > span:last-child { font-size: 12px; line-height: 1.7; margin-top: 8px; }
.pcard:hover { transform: translateY(-3px); box-shadow: var(--shadow); background: var(--paper); }
.more { font-size: 15px; font-weight: 400; color: var(--accent); min-height: 44px; margin-top: 22px; border: 0; padding: 10px 0; letter-spacing: 0; }
.site-footer { padding: 40px 0 35px; border-top: 0; font: 12px/1.8 var(--sans); color: var(--muted); }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.site-footer b { color: var(--text); font-size: 15px; font-weight: 600; }
.site-footer p { margin: 8px 0 12px; }
.site-footer small { font-size: 10px; }
.footer-links { font-size: 12px; margin: 0; gap: 24px; white-space: nowrap; }
.footer-links a { text-decoration: none; min-height: 44px; display: flex; align-items: center; }
.footer-links a:hover { text-decoration: underline; }
/* 阅读与人物详情共享稳定的字号、行长和组件层级。 */
.cover, .pcover { background: var(--bg); color: var(--text); border-bottom: 1px solid var(--line); }
.cover-inner { max-width: 820px; width: calc(100% - 270px); padding: 29px 0 48px; }
.crumb { color: var(--muted); font: 400 12px/1.5 var(--sans); letter-spacing: 0; margin: 0 0 43px; gap: 10px; }
.crumb .no { color: var(--muted); }
.crumb a:hover { color: var(--accent); }
.cover h1, .pcover h1 { font-size: clamp(42px, 5vw, 64px); line-height: 1.12; letter-spacing: -.045em; font-weight: 650; }
.cover .en, .pcover .en { font: 400 17px/1.5 var(--sans); color: var(--muted); margin: 16px 0 0; }
.tagline { font: 400 23px/1.6 var(--sans); color: var(--soft); margin: 27px 0 0; }
.cover > .glyph { position: absolute; width: 220px; height: 220px; padding: 48px; top: 50%; margin-top: -80px; right: max(48px, calc((100vw - 1184px)/2)); border-radius: 54px; color: var(--dc); opacity: 1; background: color-mix(in srgb, var(--dc) 6%, var(--card)); transform: rotate(-8deg); }
.cover > .glyph svg { stroke-width: 1.2; }
.experts { margin-top: 26px; gap: 10px; }
.expert { background: var(--card); border: 0; border-radius: 14px; color: var(--muted); padding: 12px 15px; font: 400 11px/1.65 var(--sans); max-width: 300px; }
.expert b { color: var(--text); font: 600 14px/1.5 var(--sans); margin-bottom: 3px; }
a.expert b::after { content: ' ↗'; color: var(--muted); }
a.expert:hover { background: var(--card-hover); }
.reading-actions { display: flex; gap: 20px; align-items: center; margin-top: 29px; }
.reading-actions .primary-button, .reading-actions .text-button { font-size: 14px; }
.layout { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 75px; padding-top: 57px; }
.toc { top: 90px; font-size: 12px; max-height: calc(100vh - 120px); }
.toc .h { font: 500 11px/1.5 var(--sans); letter-spacing: 0; color: var(--muted); margin: 0 0 14px 12px; }
.toc a { padding: 10px 12px; border: 0; border-radius: 10px; min-height: 44px; font-size: 13px; }
.toc a i { font-size: 10px; margin-right: 12px; letter-spacing: 0; }
.toc a.on { color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg)); font-weight: 500; }
.toc a.on i { color: var(--accent); }
.mobile-toc { display: none; }
.article { max-width: 820px; padding-bottom: 15px; }
.sec { margin-bottom: 76px; scroll-margin-top: 95px; }
.sec-label { color: var(--muted); font: 500 11px/1.5 var(--sans); letter-spacing: .015em; margin-bottom: 13px; }
.sec h2 { font-size: 29px; font-weight: 600; line-height: 1.4; letter-spacing: -.035em; margin-bottom: 25px; }
.hook-prose p, .hook-quote p { font: 400 18px/1.95 var(--sans); color: var(--soft); max-width: var(--measure); margin: 0; letter-spacing: -.01em; }
.hook-prose p::first-letter, .pstory p:first-child::first-letter { font: inherit; float: none; padding: 0; color: inherit; }
.plate { background: var(--card); border: 0; border-radius: 24px; overflow: hidden; }
.plate-bar { padding: 17px 22px; border-bottom: 1px solid var(--line); letter-spacing: 0; font-size: 10px; gap: 20px; }
.plate #mermaid { padding: 30px 22px; }
.plate-cap { background: none; padding: 22px; border-top: 1px solid var(--line); font: 400 15px/1.9 var(--sans); }
.figure { background: var(--card); border: 0; border-radius: 22px; padding: 20px; }
.chart { height: 350px; }
.ev-split { gap: 28px; }
.ev-split .takeaway, .takeaway-wide { font: 400 18px/1.9 var(--sans); }
.caption, .src { font: 400 12px/1.9 var(--sans); }
.demo-box { border: 1px solid var(--line); border-radius: 24px; }
.demo-box .controls { background: var(--card); padding: 22px; }
.controls label { font-size: 13px; grid-template-columns: minmax(130px, 200px) 1fr 58px; }
.demo-box .takeaway { font: 400 15px/1.85 var(--sans); padding: 18px 24px 23px; }
.drill { padding: 24px; }
.dr-scene { border-radius: 16px; font: 400 16px/1.9 var(--sans); padding: 20px; }
.dr-ask { font: 600 17px/1.8 var(--sans); margin-top: 23px; }
.dr-opt { font: 400 15px/1.8 var(--sans); border-radius: 15px; padding: 15px 17px; border-color: var(--line); }
.dr-opt b { font: 600 14px/1.7 var(--sans); }
.dr-ex { font: 400 15px/1.85 var(--sans); padding: 22px 0 0; border-top: 1px solid var(--line); }
.pl-btn { border-radius: 999px; border: 1px solid var(--line-strong); font: 500 14px/1.4 var(--sans); letter-spacing: 0; min-height: 44px; padding: 11px 21px; }
.pl-btn.go { background: var(--action-fill); border-color: var(--action-fill); color: #fff; }
.pl-btn.go:hover:not(:disabled) { background: var(--action-hover); border-color: var(--action-hover); opacity: 1; }
.play { padding: 25px 24px 10px; }
.pl-intro { font: 400 16px/1.9 var(--sans); }
.pl-stage { border-radius: 18px; }
.pl-canvas { border-radius: 14px; }
.pl-opps .opp, .pl-est { border-radius: 16px; }
.steps { border-top: 1px solid var(--line); }
.steps li { padding: 23px 0 23px 53px; }
.steps li::before { font: 600 15px/30px var(--sans); top: 22px; width: 30px; height: 30px; text-align: center; border-radius: 50%; background: var(--card); color: var(--text); }
.steps b { font: 600 17px/1.6 var(--sans); margin-bottom: 7px; }
.steps span { font: 400 15px/1.9 var(--sans); color: var(--muted); }
.limit { background: var(--card); border-radius: 20px; padding: 23px; }
.limit .sit { font: 600 16px/1.7 var(--sans); }
.limit .says, .limit .real { font: 400 14px/1.9 var(--sans); }
.limit small { font: 500 10px/1.5 var(--sans); letter-spacing: 0; margin-bottom: 5px; }
.rel-grid { gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.rel-card { background: var(--card); border: 0; border-radius: 18px; padding: 22px; }
.rel-card b { font: 600 18px/1.5 var(--sans); }
.rel-card span { font: 400 13px/1.8 var(--sans); margin-top: 10px; }
.rel-card .dot { display: inline-block; margin-top: 0; }
.pager { border-top: 1px solid var(--line); }
.pager a { padding: 24px 0; }
.pager small { letter-spacing: 0; font-size: 11px; }
.pager b { font: 600 22px/1.4 var(--sans); }
.sources ol { border-top: 1px solid var(--line); }
.sources li { font: 400 13px/1.85 var(--sans); padding: 17px 0; grid-template-columns: 24px 1fr auto; }
.sources a.go { font: 400 12px/1.5 var(--sans); min-height: 32px; display: flex; align-items: center; color: var(--accent); }
.lv { font-size: 10px; font-weight: 400; padding: 3px 8px; }
.reading-progress { position: fixed; top: calc(var(--header-height) - 1px); left: 0; width: 0; height: 2px; background: var(--accent); z-index: 30; pointer-events: none; }
.pcover .big { display: grid; place-items: center; position: absolute; width: 225px; height: 225px; right: max(48px, calc((100vw - 1184px)/2)); top: 50%; bottom: auto; transform: translateY(-35%) rotate(6deg); border-radius: 55px; background: color-mix(in srgb, var(--dc) 7%, var(--card)); color: var(--dc); font: 600 min(65px, calc(190px / var(--name-length, 2)))/1 var(--sans); letter-spacing: -.04em; opacity: 1; }
.pcover .cover-inner { padding-bottom: 48px; }
.pcover .epi { font: 400 22px/1.65 var(--sans); color: var(--soft); margin-top: 27px; }
.pmeta { margin-top: 25px; color: var(--muted); font-size: 12px; gap: 8px; }
.pmeta span { padding: 5px 11px; border: 0; background: var(--card); border-radius: 999px; }
.pbody { grid-template-columns: minmax(0, 1fr) 270px; gap: 80px; padding-top: 55px; padding-bottom: 40px; }
.pstory p { font: 400 18px/1.95 var(--sans); color: var(--soft); }
.pstory h2 { font: 600 28px/1.4 var(--sans); margin: 58px 0 24px; letter-spacing: -.035em; }
.facts-list, .timeline { border-top: 1px solid var(--line); }
.facts-list div { font: 400 16px/1.9 var(--sans); padding: 20px 0; }
.facts-list b { font: 500 11px/1.5 var(--sans); color: var(--muted); letter-spacing: 0; margin-bottom: 7px; }
.timeline li { font: 400 15px/1.9 var(--sans); padding: 18px 0; }
.timeline li b { font: 600 17px/1.8 var(--sans); color: var(--text); }
.aside { top: 95px; }
.aside .blk { background: var(--card); padding: 24px; border-radius: 22px; margin-bottom: 18px; }
.aside h3 { font: 600 12px/1.5 var(--sans); letter-spacing: 0; color: var(--muted); margin-bottom: 10px; }
.mlink { padding: 17px 0; }
.mlink:last-child { border-bottom: 0; padding-bottom: 0; }
.mlink b { font: 600 17px/1.5 var(--sans); }
.mlink span { font: 400 12px/1.85 var(--sans); margin-top: 6px; }
.mlink .dot { display: inline-block; }
.works { font: 400 14px/1.85 var(--sans); }
.people-index { padding-bottom: 55px; }
.people-index .masthead { padding: 66px 0 52px; }
.people-index .masthead .issue { font: 500 15px/1.5 var(--sans); letter-spacing: 0; margin-bottom: 20px; }
.people-index .masthead h1 { font-size: 58px; line-height: 1.15; font-weight: 650; letter-spacing: -.045em; }
.people-index .masthead .sub { font: 400 18px/1.7 var(--sans); letter-spacing: 0; margin-top: 23px; }
.people-searchbar { display: flex; gap: 25px; justify-content: center; align-items: center; margin-bottom: 35px; }
.people-searchbar .search { max-width: 430px; position: relative; display: block; background: var(--card); border-color: transparent; }
.people-searchbar > span { color: var(--muted); font-size: 12px; }
.people-index .pcard { background: var(--card); }
.people-index .pcard .mono { background: var(--bg); }
.people-index .people-strip { margin-top: 6px !important; }
@media (max-width: 1100px) {
  .wrap { padding-left: 32px; padding-right: 32px; }
  .discovery-layout { grid-template-columns: 350px minmax(0, 1fr); }
  .graph-panel { padding: 27px 22px 19px; }
  .graph-tools { gap: 0; }
  .graph-tools button { width: 44px; }
  .graph-bottom > span { display: none; }
  .toolbar { flex-wrap: wrap; gap: 12px; }
  .search { flex-basis: 100%; }
  .tabs { justify-content: flex-start; }
  .pbody { gap: 45px; }
}
@media (max-width: 900px) {
  .hero h1 { font-size: 64px; }
  .orbit-stage { transform: translateX(-50%) scale(.8); transform-origin: top center; }
  .orbit-art { height: 238px; }
  .discovery-layout { grid-template-columns: 1fr 1.2fr; gap: 18px; }
  .lead-text { padding: 28px 25px; }
  .lead-text h2 { font-size: 34px; }
  .panel-heading { flex-wrap: wrap; }
  .panel-heading h2 { font-size: 21px; }
  .graph-tools { margin: 0 0 -3px auto; }
  .home-graph { height: 300px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .people-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .domain-head > div { display: block; }
  .domain-head p { margin-top: 7px; }
  .cover-inner { width: calc(100% - 210px); }
  .cover > .glyph { width: 170px; height: 170px; padding: 35px; border-radius: 40px; right: 32px; }
  .pcover .big { width: 170px; height: 170px; border-radius: 40px; font-size: min(51px, calc(145px / var(--name-length, 2))); right: 32px; }
  .layout, .pbody { grid-template-columns: 1fr; gap: 0; }
  .toc { display: none; }
  .mobile-toc { display: block; border-bottom: 1px solid var(--line); padding: 10px 0; font-size: 13px; }
  .mobile-toc summary { list-style: none; display: flex; align-items: center; justify-content: space-between; min-height: 44px; cursor: pointer; color: var(--muted); }
  .mobile-toc summary::-webkit-details-marker { display: none; }
  .mobile-toc nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; padding-bottom: 10px; }
  .mobile-toc a { padding: 10px; color: var(--soft); text-decoration: none; border-radius: 10px; }
  .mobile-toc a i { font-style: normal; color: var(--muted); font-size: 10px; margin-right: 7px; }
  .mobile-toc a:hover { background: var(--card); }
  .aside { position: static; margin-top: 35px; }
  .pbody .aside { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
}
@media (max-width: 600px) {
  :root { --header-height: 60px; }
  .mobile-only { display: initial; }
  .wrap { padding-left: 22px; padding-right: 22px; }
  .header-inner { gap: 5px; }
  .brand { font-size: 18px; margin-right: auto; }
  .brand-mark { width: 25px; height: 25px; }
  .menu-toggle { display: block; }
  .header-inner nav { display: none; position: absolute; top: 60px; left: 12px; right: 12px; padding: 12px; border-radius: 20px; border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); flex-direction: column; gap: 0; font-size: 15px; }
  .header-inner nav[data-open='true'] { display: flex; }
  .header-inner nav a { padding: 0 15px; min-height: 48px; border-radius: 12px; }
  .header-inner nav a.on { background: var(--card); }
  .menu-toggle[aria-expanded='true'] span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .menu-toggle[aria-expanded='true'] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
  .hero { padding-top: 47px; padding-bottom: 30px; }
  .hero-eyebrow { font-size: 14px; margin-bottom: 17px; }
  .hero h1 { font-size: clamp(35px, 10.6vw, 46px); line-height: 1.18; letter-spacing: -.045em; }
  .hero-description { font-size: 16px; line-height: 1.7; margin: 22px 0; }
  .hero-actions { gap: 15px; }
  .hero-actions .primary-button, .hero-actions .text-button { font-size: 13px; }
  .primary-button { padding: 13px 19px; }
  .orbit-art { height: 168px; margin-top: 27px; }
  .orbit-stage { transform: translateX(-50%) scale(.48); }
  .hero-facts { font-size: 10px; margin-top: 0; }
  .hero-facts span + span { margin-left: 11px; padding-left: 11px; }
  .explore-surface { padding: 48px 0 50px; }
  .section-heading { margin-bottom: 24px; }
  .section-heading h2 { font-size: 28px; line-height: 1.3; max-width: 10em; }
  .section-heading > p { font-size: 14px; line-height: 1.7; margin-top: 12px; }
  .discovery-layout { grid-template-columns: 1fr; gap: 18px; }
  .lead { min-height: 420px; }
  .lead-text { padding: 28px; }
  .lead-text .kicker { margin-bottom: 69px; }
  .lead-text h2 { font-size: 37px; }
  .lead-text p:not(.kicker) { font-size: 19px; }
  .lead-art .glyph { width: 230px; height: 230px; right: -10px; top: 13px; }
  .graph-panel { padding: 25px 20px 16px; }
  .panel-heading { gap: 12px; }
  .panel-heading h2 { font-size: 22px; }
  .graph-tools { margin-left: auto; }
  .graph-tools button { width: 44px; }
  .home-graph { height: 305px; margin-top: 3px; }
  .legend { gap: 0 14px; font-size: 11px; }
  #catalogue { padding-top: 58px; }
  .catalogue-heading { display: block; margin-bottom: 23px; }
  .catalogue-heading h2 { font-size: 34px; line-height: 1.2; }
  .catalogue-heading > p { font-size: 14px; margin-top: 17px; }
  .catalogue-heading > p br { display: none; }
  .toolbar { display: block; padding: 12px 0 9px; }
  .search { width: 100%; }
  .search input { font-size: 13px; }
  .tabs { margin-top: 9px; gap: 2px; width: 100%; }
  .tab { padding: 8px 11px; font-size: 12px; min-height: 44px; }
  .domain-head { padding: 28px 0 17px; gap: 10px; flex-wrap: nowrap; }
  .domain-head .glyph { width: 25px; height: 25px; }
  .domain-head h2 { font-size: 21px; }
  .domain-head p { font-size: 10px; line-height: 1.6; max-width: 215px; }
  .domain-head .n { display: none; }
  .grid { grid-template-columns: 1fr; gap: 14px; }
  .card { min-height: 262px; padding: 25px; }
  .card h3 { font-size: 24px; }
  .people-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .pcard { padding: 20px 17px; min-height: 235px; border-radius: 20px; }
  .pcard .mono { width: 62px; height: 62px; font-size: min(21px, calc(54px / var(--name-length, 2))); border-radius: 19px; margin-bottom: 22px; }
  .pcard b { font-size: 15px; }
  .pcard > span:last-child { font-size: 11px; }
  .sec-head { padding-top: 58px; gap: 12px; }
  .sec-head h2 { font-size: 28px; max-width: 9em; }
  .sec-head span { font-size: 11px; white-space: nowrap; }
  .site-footer .wrap { display: block; }
  .site-footer small { font-size: 10px; }
  .footer-links { margin-top: 15px; }
  .cover-inner { width: 100%; padding: 22px 0 33px; }
  .crumb { font-size: 11px; margin-bottom: 34px; }
  .cover h1, .pcover h1 { font-size: 40px; position: relative; }
  .cover .en, .pcover .en { font-size: 14px; position: relative; }
  .tagline { font-size: 20px; margin-top: 22px; position: relative; }
  .cover > .glyph { width: 180px; height: 180px; padding: 28px; top: 90px; margin-top: 0; right: -30px; opacity: .1; border-radius: 45px; }
  .experts { margin-top: 23px; position: relative; }
  .expert { max-width: 100%; }
  .reading-actions { gap: 15px; margin-top: 26px; }
  .mobile-toc nav { grid-template-columns: repeat(2, 1fr); }
  .layout { padding-top: 35px; }
  .sec { margin-bottom: 55px; }
  .sec h2 { font-size: 25px; margin-bottom: 22px; }
  .sec h2 .lv { display: inline-block; margin: 8px 0 0 6px; }
  .hook-prose p, .hook-quote p, .pstory p { font-size: 16px; line-height: 1.95; }
  .plate-bar { font-size: 9px; padding: 15px 16px; gap: 12px; }
  .plate-bar span:last-child { text-align: right; }
  .plate #mermaid { padding: 24px 14px; }
  .plate-cap { padding: 19px 17px; font-size: 14px; }
  .figure { padding: 12px; }
  .chart { height: 300px; }
  .ev-split, .rel-grid, .limit-cards { grid-template-columns: 1fr; }
  .ev-split .takeaway, .takeaway-wide { font-size: 16px; }
  .controls label { grid-template-columns: 1fr 55px; }
  .controls label span { grid-column: 1 / -1; }
  .play, .drill { padding: 21px 17px; }
  .dr-scene { padding: 16px; font-size: 15px; }
  .dr-opt { font-size: 14px; padding: 14px; }
  .demo-box .takeaway { padding: 15px 18px 20px; font-size: 14px; }
  .steps b { font-size: 16px; }
  .steps span { font-size: 14px; }
  .sources li { grid-template-columns: 20px 1fr; }
  .sources li a.go { grid-column: 2; }
  .pcover .big { width: 145px; height: 145px; right: -20px; top: 70px; transform: rotate(6deg); font-size: min(48px, calc(126px / var(--name-length, 2))); opacity: .12; }
  .pcover .epi { font-size: 19px; position: relative; }
  .pmeta { position: relative; }
  .pbody { padding-top: 35px; }
  .pbody .aside { display: block; }
  .pstory h2 { font-size: 25px; margin-top: 45px; }
  .timeline li { grid-template-columns: 62px 1fr; gap: 12px; }
  .people-index .masthead { padding: 47px 0 32px; text-align: left; }
  .people-index .masthead h1 { font-size: 39px; line-height: 1.2; }
  .people-index .masthead .sub { font-size: 15px; margin-top: 20px; }
  .people-searchbar { display: block; margin-bottom: 20px; }
  .people-searchbar > span { display: block; margin-top: 14px; }
}
@media (max-width: 360px) {
  .wrap { padding-left: 18px; padding-right: 18px; }
  .hero-description { font-size: 14px; }
  .hero-actions { gap: 8px; }
  .hero-actions .primary-button { padding: 13px 15px; }
  .hero-facts { font-size: 9px; }
  .hero-facts span + span { margin-left: 9px; padding-left: 9px; }
  .orbit-stage { transform: translateX(-50%) scale(.4); }
  .orbit-art { height: 146px; }
  .graph-tools button { width: 44px; }
  .people-strip { gap: 10px; }
  .pcard { padding: 20px 14px; }
}
@media (hover: none) { .card:hover, .pcard:hover { transform: none; box-shadow: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}