:root {
  --font-en: 'Courier New', Courier, monospace;
  --font-zh: 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
  --paper: #fafafa;
  --ink: #161616;
  --muted: #717171;
  --line: #d8d8d8;
  font-family: var(--font-en), var(--font-zh);
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { margin: 0; }
html[lang^='zh'] body { font-family: var(--font-zh); }
html[lang='en'] body { font-family: var(--font-en), var(--font-zh); }
body.dialog-open { overflow: hidden; }
button, input, textarea, select { font: inherit; color: inherit; }
button, a { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
button { background: transparent; cursor: pointer; border: 0; padding: 0; }
button, h1, h2, h3, strong { font-weight: 400; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
p, h1, h2, h3, figure { margin: 0; }
[hidden] { display: none !important; }
::selection { background: #1c1c1c; color: #fff; }
:focus-visible { outline: 1px solid var(--ink); outline-offset: 5px; }
.mono, .eyebrow, .item-number { font-family: var(--font-en), var(--font-zh); font-weight: 400; }
.container { width: min(100% - 128px, 1120px); margin-inline: auto; }
.section { padding-block: 100px; border-top: 1px solid var(--line); }
.eyebrow { font-size: 10px; line-height: 1.7; letter-spacing: .025em; color: var(--muted); }
h2 { font-size: 32px; line-height: 1.55; letter-spacing: -.025em; white-space: pre-line; }
h3 { font-size: 24px; line-height: 1.55; }
html[lang='en'] h2 { font-size: 27px; line-height: 1.55; letter-spacing: -.055em; }
html[lang='en'] h3 { font-size: 19px; letter-spacing: -.045em; }
.skip-link { position: fixed; top: 12px; left: 12px; padding: 12px 18px; z-index: 100; background: var(--ink); color: #fff; transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { height: 88px; position: absolute; inset: 0 0 auto; z-index: 20; padding-inline: max(64px, calc((100vw - 1120px)/2)); display: flex; align-items: center; gap: 42px; background: var(--paper); }
.site-header.scrolled { position: fixed; height: 68px; border-bottom: 1px solid var(--line); background: #fafafaf5; backdrop-filter: blur(8px); }
.brand { font-size: 14px; letter-spacing: -.02em; white-space: nowrap; line-height: 1.5; }
.brand-dot { font-size: 8px; vertical-align: top; margin-left: 5px; }
.desktop-nav { display: flex; align-items: center; gap: 36px; margin-left: auto; font-size: 16px; }
html[lang='en'] .desktop-nav { font-size: 11px; gap: 28px; }
.desktop-nav a { padding-block: 10px; }
.desktop-nav a:hover { color: var(--muted); }
.language-toggle { padding: 8px 0 8px 24px; border-left: 1px solid var(--line); font-size: 11px; min-width: 43px; min-height: 32px; }
.menu-toggle { display: none; }
.mobile-nav { position: absolute; top: 100%; left: 0; right: 0; padding: 15px 24px 25px; background: var(--paper); border-bottom: 1px solid var(--line); }
.mobile-nav a { display: block; padding: 17px 0; border-bottom: 1px solid #e7e7e7; }
.hero { position: relative; display: grid; grid-template-columns: 1fr 280px; column-gap: 70px; min-height: 750px; align-items: center; padding-block: 180px 150px; }
.hero-content { max-width: 700px; }
.hero h1 { font-size: 62px; line-height: 1.5; letter-spacing: -.04em; margin-top: 28px; }
html[lang='en'] .hero h1 { font-size: 44px; line-height: 1.45; letter-spacing: -.065em; }
.hero-intro { font-size: 21px; line-height: 1.85; max-width: 495px; margin-top: 27px; color: #626262; }
html[lang='en'] .hero-intro { font-size: 14px; line-height: 1.9; max-width: 500px; letter-spacing: -.035em; }
.hero-actions { display: flex; align-items: center; gap: 35px; margin-top: 31px; font-size: 18px; }
html[lang='en'] .hero-actions { font-size: 12px; gap: 26px; }
.text-link, .quiet-link { display: inline-flex; align-items: center; gap: 18px; padding-block: 6px; line-height: 1.6; }
.text-link { border-bottom: 1px solid var(--ink); }
.text-link:hover { color: var(--muted); border-color: var(--muted); }
.quiet-link { color: var(--muted); }
.quiet-link:hover { color: var(--ink); }
.text-link .mono, .quiet-link .mono { font-size: 17px; }
.hero-identity { align-self: center; justify-self: end; text-align: center; padding-top: 35px; }
.logo-window { width: 235px; height: 235px; overflow: hidden; margin-inline: auto; }
.logo-window img { width: 235px; max-width: none; height: auto; object-position: top; }
.hero-identity figcaption { font-size: 9px; line-height: 1.5; letter-spacing: .02em; color: var(--muted); margin-top: 35px; }
.hero-bottom { position: absolute; bottom: 28px; left: 0; right: 0; display: flex; justify-content: space-between; gap: 25px; font-size: 9px; color: #858585; line-height: 1.6; }
.intro, .support-section, .rhythm, .principles-section, .join-section { display: grid; grid-template-columns: 280px 1fr; gap: 70px; }
.section-side { padding-top: 4px; }
.section-side h2 { margin-top: 26px; max-width: 245px; }
.intro-main h2 { max-width: 670px; }
.intro-lead { margin-top: 27px; font-size: 21px; line-height: 1.95; color: #626262; }
html[lang='en'] .intro-lead { font-size: 14px; line-height: 1.95; letter-spacing: -.025em; }
.support-list article { display: grid; grid-template-columns: 20px 1fr; gap: 30px; padding-block: 27px; border-top: 1px solid var(--line); }
.support-list article:first-child { padding-top: 0; border: 0; }
.support-list article:last-child { padding-bottom: 0; }
.item-number { padding-top: 9px; font-size: 10px; color: #929292; }
.support-list p { font-size: 19px; line-height: 1.85; color: #747474; margin-top: 10px; max-width: 560px; }
html[lang='en'] .support-list p { font-size: 13px; line-height: 1.9; letter-spacing: -.03em; }
.rhythm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; }
.rhythm-grid article + article { border-left: 1px solid var(--line); padding-left: 35px; }
.stat-heading { display: flex; align-items: baseline; gap: 16px; margin-bottom: 22px; line-height: 1; }
.stat-heading > .mono { font-size: 90px; letter-spacing: -.08em; }
.stat-heading > span:last-child { font-size: 21px; }
html[lang='en'] .stat-heading > span:last-child { font-size: 15px; }
.rhythm-grid h3 { font-size: 21px; }
html[lang='en'] .rhythm-grid h3 { font-size: 16px; line-height: 1.6; }
.rhythm-grid p { font-size: 18px; line-height: 1.85; color: #747474; margin-top: 13px; }
html[lang='en'] .rhythm-grid p { font-size: 12px; line-height: 1.9; letter-spacing: -.025em; }
.rhythm-note { font-size: 15px; line-height: 1.8; color: #898989; padding-top: 24px; margin-top: 34px; border-top: 1px solid var(--line); }
html[lang='en'] .rhythm-note { font-size: 10px; line-height: 1.9; }
.principles-list { margin-top: -20px; }
.principles-list details { border-bottom: 1px solid var(--line); }
.principles-list summary { display: flex; justify-content: space-between; align-items: center; gap: 25px; list-style: none; padding-block: 22px; font-size: 23px; line-height: 1.6; cursor: pointer; }
html[lang='en'] .principles-list summary { font-size: 14px; line-height: 1.8; letter-spacing: -.04em; }
.principles-list summary::-webkit-details-marker { display: none; }
.principles-list summary i { font-style: normal; font-size: 20px; flex-shrink: 0; color: #8b8b8b; transition: transform .2s; }
.principles-list details[open] summary i { transform: rotate(45deg); }
.principles-list details > p { font-size: 19px; line-height: 1.9; padding: 0 28px 27px 0; color: #747474; }
html[lang='en'] .principles-list details > p { font-size: 12px; letter-spacing: -.02em; }
.join-section { padding-block: 105px 115px; }
.join-main h2 { font-size: 43px; line-height: 1.6; }
html[lang='en'] .join-main h2 { font-size: 33px; line-height: 1.55; }
.join-intro { font-size: 20px; line-height: 1.9; margin-top: 21px; color: #747474; max-width: 580px; }
html[lang='en'] .join-intro { font-size: 13px; line-height: 1.9; letter-spacing: -.03em; }
.join-paths { margin-top: 34px; border-top: 1px solid var(--line); }
.join-path { display: grid; grid-template-columns: 1fr 1.4fr 20px; width: 100%; gap: 20px; align-items: center; padding: 23px 0; text-align: left; border-bottom: 1px solid var(--line); }
.join-path:hover .path-heading { color: #797979; }
.path-heading { font-size: 21px; line-height: 1.5; }
.path-copy { font-size: 16px; line-height: 1.6; color: #8a8a8a; }
html[lang='en'] .path-heading { font-size: 13px; line-height: 1.6; letter-spacing: -.035em; }
html[lang='en'] .path-copy { font-size: 10px; line-height: 1.8; letter-spacing: -.025em; }
.join-path i { font-style: normal; font-size: 20px; transition: transform .2s; }
.join-path:hover i { transform: translate(2px,-2px); }
.join-contact { margin-top: 35px; font-size: 11px; line-height: 1.9; color: #717171; overflow-wrap: anywhere; }
.join-contact a { border-bottom: 1px solid #a6a6a6; padding-bottom: 3px; }
.join-contact a:hover { color: var(--ink); border-color: var(--ink); }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid var(--line); padding-block: 28px; color: #8b8b8b; }
.site-footer > span { font-size: 9px; }
.site-footer p { font-size: 15px; }
html[lang='en'] .site-footer p { font-size: 9px; }
.privacy-trigger { font-size: 15px; }
html[lang='en'] .privacy-trigger { font-size: 10px; }
.privacy-trigger:hover { color: var(--ink); }
/* Dialogs retain the same quiet typographic system as the page. */
dialog { width: min(630px, calc(100% - 36px)); max-height: calc(100svh - 40px); padding: 0; border: 1px solid #a2a2a2; border-radius: 0; background: var(--paper); color: var(--ink); overflow-y: auto; overscroll-behavior: contain; }
dialog::backdrop { background: #0009; }
.dialog-inner { padding: 42px; position: relative; }
.dialog-close { position: absolute; width: 34px; height: 34px; right: 17px; top: 15px; font-size: 25px; line-height: 1; color: #777; }
.dialog-close:hover { color: #000; }
.dialog-inner h2 { font-size: 32px; margin-top: 16px; }
html[lang='en'] .dialog-inner h2 { font-size: 25px; }
.dialog-description { font-size: 18px; color: #777; line-height: 1.8; margin-top: 13px; }
html[lang='en'] .dialog-description { font-size: 12px; line-height: 1.9; letter-spacing: -.03em; }
.interest-options { display: flex; flex-wrap: wrap; gap: 10px 20px; border: 0; padding: 0; margin: 25px 0 24px; }
.interest-options legend { font-size: 17px; margin-bottom: 13px; }
.interest-options label { display: flex; align-items: center; gap: 6px; font-size: 16px; cursor: pointer; }
.interest-options input { accent-color: #171717; margin: 0; width: 13px; height: 13px; }
html[lang='en'] .interest-options legend { font-size: 12px; }
html[lang='en'] .interest-options label { font-size: 11px; letter-spacing: -.04em; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row label, .form-label { display: block; font-size: 17px; line-height: 1.7; }
html[lang='en'] .form-row label, html[lang='en'] .form-label { font-size: 11px; }
.form-label { margin-top: 20px; }
input:not([type='radio']), textarea, select { display: block; width: 100%; min-width: 0; border: 1px solid #c9c9c9; border-radius: 0; background: #fff; padding: 12px; font-size: 17px; line-height: 1.6; margin-top: 7px; }
input[type='email'] { font-family: var(--font-en), var(--font-zh); font-size: 12px; }
html[lang='en'] input:not([type='radio']), html[lang='en'] textarea, html[lang='en'] select { font-size: 12px; }
input::placeholder, textarea::placeholder { color: #999; }
textarea { resize: vertical; min-height: 112px; }
select { min-height: 45px; }
.form-privacy { margin-top: 20px; color: #888; font-size: 15px; line-height: 1.8; }
html[lang='en'] .form-privacy { font-size: 10px; line-height: 1.8; }
.form-submit { display: flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 19px; padding: 14px 17px; border: 1px solid var(--ink); background: var(--ink); color: #fff; font-size: 18px; }
html[lang='en'] .form-submit { font-size: 12px; }
.form-submit:hover { background: #373737; }
.brief-download { margin-top: 13px; font-size: 15px; }
html[lang='en'] .brief-download { font-size: 10px; }
.form-status { margin-top: 15px; color: #555; font-size: 16px; line-height: 1.8; overflow-wrap: anywhere; }
html[lang='en'] .form-status { font-size: 11px; }
.form-status:empty { display: none; }
.privacy-copy { margin-top: 25px; color: #717171; font-size: 19px; line-height: 1.9; }
html[lang='en'] .privacy-copy { font-size: 12px; }
.noscript-note { padding: 18px 24px; border-top: 1px solid var(--line); text-align: center; font-size: 13px; }
@media (max-width: 1100px) {
  .container { width: calc(100% - 88px); }
  .site-header { padding-inline: 44px; }
  .hero { grid-template-columns: 1fr 210px; gap: 40px; min-height: 700px; }
  .hero h1 { font-size: 52px; }
  html[lang='en'] .hero h1 { font-size: 35px; }
  .logo-window { width: 200px; height: 200px; }
  .logo-window img { width: 200px; }
  .intro, .support-section, .rhythm, .principles-section, .join-section { grid-template-columns: 240px 1fr; gap: 45px; }
  .section-side h2 { font-size: 28px; }
  html[lang='en'] .section-side h2 { font-size: 24px; }
  .rhythm-grid { gap: 25px; }
  .rhythm-grid article + article { padding-left: 25px; }
  .join-path { gap: 15px; }
  .path-heading { font-size: 19px; }
  .path-copy { font-size: 15px; }
}
@media (max-width: 800px) {
  .container { width: calc(100% - 48px); }
  .site-header, .site-header.scrolled { height: 72px; padding-inline: 24px; gap: 19px; }
  .brand { font-size: 12px; }
  .brand-dot { font-size: 7px; }
  .desktop-nav { display: none; }
  .language-toggle { margin-left: auto; border-left: 0; padding: 7px 5px; min-width: 30px; font-size: 10px; }
  .menu-toggle { display: flex; flex-direction: column; justify-content: center; gap: 6px; width: 24px; height: 32px; }
  .menu-toggle span { width: 21px; height: 1px; background: var(--ink); transition: transform .2s; }
  .menu-toggle[aria-expanded='true'] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded='true'] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .hero { grid-template-columns: 1fr 180px; gap: 28px; min-height: 700px; padding-block: 155px 125px; }
  .hero h1 { font-size: 44px; }
  html[lang='en'] .hero h1 { font-size: 30px; }
  .hero-intro { font-size: 19px; }
  html[lang='en'] .hero-intro { font-size: 12px; }
  .hero-actions { font-size: 17px; gap: 25px; }
  html[lang='en'] .hero-actions { font-size: 11px; gap: 20px; }
  .hero-identity { padding-top: 18px; }
  .logo-window { width: 172px; height: 172px; }
  .logo-window img { width: 172px; }
  .hero-identity figcaption { font-size: 7px; margin-top: 28px; }
  .hero-content .eyebrow { font-size: 8px; }
  .section { padding-block: 73px; }
  .intro, .support-section, .rhythm, .principles-section, .join-section { grid-template-columns: 1fr; gap: 29px; }
  .section-side h2, html[lang='en'] .section-side h2 { max-width: 100%; margin-top: 18px; }
  .section-side h2 { font-size: 31px; }
  html[lang='en'] .section-side h2 { font-size: 25px; }
  .intro-main h2 { font-size: 32px; }
  html[lang='en'] .intro-main h2 { font-size: 26px; }
  .intro-lead { font-size: 20px; margin-top: 21px; }
  .support-list article:first-child { padding-top: 25px; border-top: 1px solid var(--line); }
  .support-list article { gap: 21px; }
  .support-list p { max-width: none; font-size: 19px; }
  .rhythm-grid { gap: 30px; }
  .rhythm-grid article + article { padding-left: 30px; }
  .rhythm-grid h3 { font-size: 22px; }
  html[lang='en'] .rhythm-grid h3 { font-size: 17px; }
  .principles-list { margin-top: 0; border-top: 1px solid var(--line); }
  .join-section { padding-bottom: 80px; }
  .join-main h2 { font-size: 39px; }
  html[lang='en'] .join-main h2 { font-size: 31px; }
  .join-path { grid-template-columns: 1fr 1.4fr 20px; }
  .path-heading { font-size: 21px; }
  .path-copy { font-size: 16px; }
  .site-footer { gap: 24px; flex-wrap: wrap; }
  .site-footer p { order: 3; width: 100%; font-size: 14px; }
  .privacy-trigger { margin-left: auto; }
}
@media (max-width: 570px) {
  .hero { display: block; min-height: 0; padding-top: 135px; padding-bottom: 80px; }
  .hero-content { max-width: 100%; }
  .hero-content .eyebrow { font-size: 8px; letter-spacing: -.015em; }
  .hero h1 { font-size: clamp(36px,9.1vw,49px); line-height: 1.65; margin-top: 22px; letter-spacing: -.04em; }
  html[lang='en'] .hero h1 { font-size: clamp(25px,6.9vw,35px); line-height: 1.5; letter-spacing: -.065em; }
  .hero-intro { margin-top: 24px; font-size: 20px; line-height: 1.9; max-width: 370px; }
  html[lang='en'] .hero-intro { font-size: 12px; max-width: 390px; }
  .hero-actions { margin-top: 25px; gap: 29px; font-size: 17px; }
  html[lang='en'] .hero-actions { font-size: 11px; gap: 24px; }
  .hero-identity { display: flex; align-items: flex-end; justify-content: flex-end; gap: 24px; margin-top: 36px; padding: 0; }
  .logo-window { width: 126px; height: 126px; margin: 0; flex-shrink: 0; order: 2; }
  .logo-window img { width: 126px; }
  .hero-identity figcaption { font-size: 7px; margin: 0 0 3px; line-height: 1.8; text-align: right; }
  .hero-bottom { bottom: 23px; font-size: 7px; gap: 14px; }
  .hero-bottom span:last-child { display: none; }
  .section { padding-block: 62px; }
  .intro, .support-section, .rhythm, .principles-section, .join-section { gap: 24px; }
  .eyebrow { font-size: 9px; }
  .intro-main h2 { font-size: 29px; line-height: 1.65; }
  html[lang='en'] .intro-main h2 { font-size: 23px; }
  .intro-lead { font-size: 20px; line-height: 1.9; margin-top: 20px; }
  html[lang='en'] .intro-lead { font-size: 12px; }
  .section-side h2 { font-size: 29px; }
  html[lang='en'] .section-side h2 { font-size: 23px; }
  .support-list article { grid-template-columns: 16px 1fr; gap: 18px; padding-block: 22px; }
  .support-list h3 { font-size: 24px; }
  html[lang='en'] .support-list h3 { font-size: 17px; }
  .support-list p { font-size: 19px; margin-top: 8px; }
  html[lang='en'] .support-list p { font-size: 12px; }
  .rhythm-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .rhythm-grid article + article { padding-left: 20px; }
  .stat-heading { gap: 11px; margin-bottom: 19px; }
  .stat-heading > .mono { font-size: 75px; }
  .stat-heading > span:last-child { font-size: 19px; }
  html[lang='en'] .stat-heading > span:last-child { font-size: 11px; }
  .rhythm-grid h3 { font-size: 20px; line-height: 1.7; }
  html[lang='en'] .rhythm-grid h3 { font-size: 14px; line-height: 1.7; }
  .rhythm-grid p { font-size: 18px; line-height: 1.9; margin-top: 12px; }
  html[lang='en'] .rhythm-grid p { font-size: 10px; line-height: 1.9; }
  .rhythm-note { font-size: 15px; margin-top: 25px; padding-top: 20px; }
  html[lang='en'] .rhythm-note { font-size: 9px; }
  .principles-list summary { font-size: 21px; gap: 18px; padding-block: 20px; }
  html[lang='en'] .principles-list summary { font-size: 12px; }
  .principles-list details > p { font-size: 18px; }
  html[lang='en'] .principles-list details > p { font-size: 11px; }
  .join-main h2 { font-size: 35px; }
  html[lang='en'] .join-main h2 { font-size: 25px; }
  .join-intro { font-size: 19px; }
  html[lang='en'] .join-intro { font-size: 12px; }
  .join-path { grid-template-columns: 1fr 20px; gap: 6px 20px; padding-block: 21px; }
  .path-heading { font-size: 22px; }
  .path-copy { grid-row: 2; grid-column: 1; font-size: 17px; }
  .join-path i { grid-column: 2; grid-row: 1 / 3; }
  html[lang='en'] .path-heading { font-size: 14px; }
  html[lang='en'] .path-copy { font-size: 11px; }
  .join-contact { font-size: 10px; margin-top: 26px; }
  .site-footer { gap: 20px; padding-block: 25px; }
  .site-footer > span { font-size: 8px; }
  .privacy-trigger { font-size: 14px; }
  html[lang='en'] .privacy-trigger { font-size: 9px; }
  .site-footer p { font-size: 14px; }
  dialog { width: calc(100% - 24px); max-height: calc(100svh - 24px); }
  .dialog-inner { padding: 35px 24px 27px; }
  .dialog-inner h2 { font-size: 28px; }
  html[lang='en'] .dialog-inner h2 { font-size: 22px; }
  .dialog-inner > .eyebrow { font-size: 8px; }
  .dialog-close { right: 11px; top: 11px; }
  .dialog-description { font-size: 18px; }
  .interest-options { gap: 12px; }
  .interest-options label { font-size: 16px; }
  html[lang='en'] .interest-options label { font-size: 10px; }
  .form-row { grid-template-columns: 1fr; gap: 17px; }
  input:not([type='radio']), textarea, select, input[type='email'], html[lang='en'] input:not([type='radio']), html[lang='en'] textarea, html[lang='en'] select { font-size: 16px; }
  .form-label { margin-top: 18px; }
  .privacy-copy { font-size: 18px; }
}
@media (max-width: 350px) {
  .container { width: calc(100% - 36px); }
  .site-header, .site-header.scrolled { padding-inline: 18px; gap: 13px; }
  .brand { font-size: 11px; }
  .hero h1 { font-size: 34px; }
  html[lang='en'] .hero h1 { font-size: 24px; }
  .hero-content .eyebrow { font-size: 7px; }
  .hero-actions { gap: 23px; }
  .stat-heading > .mono { font-size: 67px; }
  .stat-heading > span:last-child { font-size: 17px; }
  html[lang='en'] .stat-heading > span:last-child { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Keep English comfortable to read in the typewriter font stack. */
html[lang='en'] .hero-intro,
html[lang='en'] .intro-lead,
html[lang='en'] .support-list p,
html[lang='en'] .rhythm-grid p,
html[lang='en'] .principles-list details > p,
html[lang='en'] .join-intro,
html[lang='en'] .dialog-description,
html[lang='en'] .privacy-copy {
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: -.01em;
  color: #555;
}
html[lang='en'] .desktop-nav { font-size: 13px; }
html[lang='en'] .language-toggle { font-size: 12px; }
html[lang='en'] .eyebrow,
html[lang='en'] .hero-content .eyebrow,
html[lang='en'] .dialog-inner > .eyebrow,
html[lang='en'] .hero-bottom,
html[lang='en'] .hero-identity figcaption,
html[lang='en'] .item-number { font-size: 11px; }
html[lang='en'] .hero-actions { font-size: 14px; }
html[lang='en'] .principles-list summary { font-size: 16px; letter-spacing: -.015em; }
html[lang='en'] .rhythm-grid h3 { font-size: 18px; line-height: 1.65; letter-spacing: -.015em; }
html[lang='en'] .stat-heading > span:last-child { font-size: 15px; }
html[lang='en'] .rhythm-note,
html[lang='en'] .form-privacy { font-size: 12px; line-height: 1.85; color: #707070; }
html[lang='en'] .path-heading { font-size: 16px; letter-spacing: -.015em; }
html[lang='en'] .path-copy { font-size: 13px; line-height: 1.8; letter-spacing: 0; color: #707070; }
html[lang='en'] .join-contact { font-size: 14px; }
html[lang='en'] .site-footer > span,
html[lang='en'] .site-footer p,
html[lang='en'] .privacy-trigger { font-size: 11px; }
html[lang='en'] .interest-options legend,
html[lang='en'] .interest-options label,
html[lang='en'] .form-row label,
html[lang='en'] .form-label,
html[lang='en'] .form-submit,
html[lang='en'] .brief-download,
html[lang='en'] .form-status { font-size: 14px; letter-spacing: -.01em; }
html[lang='en'] input:not([type='radio']),
html[lang='en'] textarea,
html[lang='en'] select { font-size: 14px; }
@media (max-width: 570px) {
  html[lang='en'] .hero-intro,
  html[lang='en'] .intro-lead,
  html[lang='en'] .support-list p,
  html[lang='en'] .rhythm-grid p,
  html[lang='en'] .principles-list details > p,
  html[lang='en'] .join-intro,
  html[lang='en'] .dialog-description,
  html[lang='en'] .privacy-copy { font-size: 14px; }
  html[lang='en'] .hero-content .eyebrow,
  html[lang='en'] .hero-bottom,
  html[lang='en'] .hero-identity figcaption { font-size: 10px; }
  html[lang='en'] .hero-actions { font-size: 13px; gap: 22px; }
  html[lang='en'] .rhythm-grid { grid-template-columns: 1fr; gap: 28px; }
  html[lang='en'] .rhythm-grid article + article { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-top: 28px; }
  html[lang='en'] .rhythm-grid h3 { font-size: 17px; }
  html[lang='en'] .path-copy { font-size: 14px; }
  html[lang='en'] .join-contact { font-size: 13px; }
  html[lang='en'] .interest-options label { font-size: 13px; }
  html[lang='en'] input:not([type='radio']),
  html[lang='en'] textarea,
  html[lang='en'] select { font-size: 16px; }
}

/* Chinese uses a restrained sans-serif setting, as requested. */
html[lang^='zh'] .hero h1 { font-size: 56px; line-height: 1.5; font-weight: 400; letter-spacing: -.04em; }
html[lang^='zh'] h2 { font-size: 30px; line-height: 1.55; }
html[lang^='zh'] .section-side h2 { font-size: 28px; }
html[lang^='zh'] .intro-main h2 { font-size: 30px; }
html[lang^='zh'] .join-main h2 { font-size: 38px; line-height: 1.55; }
html[lang^='zh'] .hero-intro,
html[lang^='zh'] .intro-lead,
html[lang^='zh'] .support-list p,
html[lang^='zh'] .rhythm-grid p,
html[lang^='zh'] .principles-list details > p,
html[lang^='zh'] .join-intro,
html[lang^='zh'] .dialog-description,
html[lang^='zh'] .privacy-copy { font-size: 18px; line-height: 1.85; letter-spacing: 0; font-weight: 400; }
html[lang^='zh'] .support-list h3 { font-size: 22px; }
html[lang^='zh'] .rhythm-grid h3 { font-size: 20px; line-height: 1.65; }
html[lang^='zh'] .principles-list summary { font-size: 20px; line-height: 1.65; }
html[lang^='zh'] .path-heading { font-size: 19px; }
html[lang^='zh'] .path-copy { font-size: 15px; }
html[lang^='zh'] .hero-actions { font-size: 16px; }
html[lang^='zh'] .dialog-inner h2 { font-size: 28px; }
html[lang^='zh'] .form-row label,
html[lang^='zh'] .form-label,
html[lang^='zh'] .interest-options legend,
html[lang^='zh'] .interest-options label { font-size: 15px; }
html[lang^='zh'] input:not([type='radio']),
html[lang^='zh'] textarea,
html[lang^='zh'] select { font-size: 16px; }
html[lang^='zh'] .form-submit { font-size: 16px; }
html[lang^='zh'] .form-privacy,
html[lang^='zh'] .form-status,
html[lang^='zh'] .brief-download { font-size: 14px; }
@media (max-width: 1100px) {
  html[lang^='zh'] .hero h1 { font-size: 48px; }
}
@media (max-width: 800px) {
  html[lang^='zh'] .hero h1 { font-size: 44px; }
}
@media (max-width: 570px) {
  html[lang^='zh'] .hero h1 { font-size: clamp(32px, 8.6vw, 40px); line-height: 1.55; }
  html[lang^='zh'] .intro-main h2,
  html[lang^='zh'] .section-side h2 { font-size: 27px; }
  html[lang^='zh'] .join-main h2 { font-size: 32px; }
  html[lang^='zh'] .hero-intro,
  html[lang^='zh'] .intro-lead,
  html[lang^='zh'] .support-list p,
  html[lang^='zh'] .rhythm-grid p,
  html[lang^='zh'] .principles-list details > p,
  html[lang^='zh'] .join-intro,
  html[lang^='zh'] .dialog-description,
  html[lang^='zh'] .privacy-copy { font-size: 17px; line-height: 1.85; }
  html[lang^='zh'] .support-list h3 { font-size: 21px; }
  html[lang^='zh'] .rhythm-grid h3 { font-size: 18px; }
  html[lang^='zh'] .principles-list summary { font-size: 19px; }
  html[lang^='zh'] .path-heading { font-size: 20px; }
  html[lang^='zh'] .path-copy { font-size: 15px; }
  html[lang^='zh'] .dialog-inner h2 { font-size: 25px; }
}

/* The opening screen contains only the name, the mark, and an invitation. */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 760px;
  height: 90svh;
  padding: 120px 0 90px;
  gap: 0;
  text-align: center;
}
.hero #hero-heading,
html[lang='en'] .hero #hero-heading,
html[lang^='zh'] .hero #hero-heading {
  font-family: var(--font-en);
  font-size: 64px;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -.04em;
  white-space: nowrap;
  margin: 0;
}
.hero .hero-identity {
  display: block;
  align-self: auto;
  justify-self: auto;
  padding: 0;
  margin: 42px 0 0;
}
.hero .logo-window { width: 180px; height: 180px; margin-inline: auto; }
.hero .logo-window img { width: 180px; height: auto; }
.hero .hero-join { margin-top: 42px; padding-block: 5px; font-size: 16px; line-height: 1.5; }
html[lang^='zh'] .hero .hero-join { font-size: 17px; }
@media (max-width: 800px) {
  .hero { min-height: 680px; padding-block: 110px 80px; }
  .hero #hero-heading,
  html[lang='en'] .hero #hero-heading,
  html[lang^='zh'] .hero #hero-heading { font-size: 48px; }
}
@media (max-width: 570px) {
  .hero { min-height: 90svh; height: auto; padding-block: 125px 85px; }
  .hero #hero-heading,
  html[lang='en'] .hero #hero-heading,
  html[lang^='zh'] .hero #hero-heading { font-size: clamp(26px, 8.2vw, 32px); letter-spacing: -.035em; }
  .hero .hero-identity { margin-top: 39px; }
  .hero .hero-join { margin-top: 38px; font-size: 15px; }
  html[lang^='zh'] .hero .hero-join { font-size: 16px; }
}

/* Clear, practical contrast for the laboratory's information sections. */
.hero #hero-heading,
html[lang='en'] .hero #hero-heading,
html[lang^='zh'] .hero #hero-heading { letter-spacing: 0; }
.intro-lead,
.support-list p,
.rhythm-grid p,
.principles-list details > p,
.join-intro,
.dialog-description,
.privacy-copy,
html[lang='en'] .intro-lead,
html[lang='en'] .support-list p,
html[lang='en'] .rhythm-grid p,
html[lang='en'] .principles-list details > p,
html[lang='en'] .join-intro,
html[lang='en'] .dialog-description,
html[lang='en'] .privacy-copy { color: #333; }
.path-copy,
.rhythm-note,
.form-privacy,
.join-contact,
.site-footer,
.eyebrow,
.item-number,
html[lang='en'] .path-copy,
html[lang='en'] .rhythm-note,
html[lang='en'] .form-privacy { color: #555; }
.text-link, .quiet-link, .privacy-trigger { color: #161616; }
.section { padding-block: 88px; }
.join-section { padding-block: 88px 98px; }
@media (max-width: 800px) {
  .section { padding-block: 66px; }
  .join-section { padding-block: 66px 76px; }
}
@media (max-width: 570px) {
  .section { padding-block: 56px; }
  .join-section { padding-block: 56px 66px; }
}