:root {
  --paper: #f7f6f1;
  --ink: #30362f;
  --muted: #676d63;
  --line: #dcded4;
  --sage: #5c6656;
  --sage-dark: #454f40;
  --serif: 'Chunzhi Serif', 'Noto Serif SC', 'Songti SC', STSong, SimSun, serif;
  --sans: 'Chunzhi Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; font-weight: 400; line-height: 1.85; letter-spacing: .025em; -webkit-font-smoothing: antialiased; }
body.dialog-open { overflow: hidden; }
::selection { color: var(--ink); background: #dce2d2; }
[hidden] { display: none !important; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--sage); outline-offset: 6px; }
h1, h2, h3, p, figure, dl { margin: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; }
ul { margin: 0; padding-left: 1.2em; }
p + p { margin-top: 18px; }
.shell { width: min(1180px, calc(100% - 112px)); margin-inline: auto; }
.site-header, main, .hero-bottom, .site-footer { position: relative; z-index: 1; }
.paper-texture { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .035; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.6' filter='url(%23paper)'/%3E%3C/svg%3E"); background-size: 180px 180px; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 20px; padding: 10px 18px; background: var(--paper); color: var(--ink); border: 1px solid var(--sage); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.header-inner { min-height: 116px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 18px; flex-shrink: 0; }
.brand-logo { width: 72px; height: 72px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; gap: 44px; font-size: 14px; letter-spacing: .09em; }
.desktop-nav a { min-height: 44px; display: inline-flex; align-items: center; transition: color .2s ease; }
.desktop-nav a:hover { color: var(--sage); }
.hero { min-height: 640px; padding-top: 34px; padding-bottom: 58px; display: grid; grid-template-columns: 1fr 390px; align-items: center; gap: 100px; }
.hero-copy { padding-left: 64px; padding-bottom: 10px; min-width: 0; }
.hero-title { font-size: 48px; font-weight: 300; letter-spacing: .11em; line-height: 1.65; }
.hero-title span { display: block; }
.hero-subtitle { margin-top: 27px; color: #5d6459; font-family: var(--serif); font-size: 18px; font-weight: 400; letter-spacing: .1em; }
.hero-credentials { max-width: 400px; margin-top: 24px; font-size: 12px; color: var(--muted); line-height: 2.1; letter-spacing: .045em; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 30px; margin-top: 34px; }
.button { min-height: 46px; padding: 10px 27px; display: inline-flex; justify-content: center; align-items: center; gap: 10px; border: 1px solid transparent; border-radius: 0; font-size: 14px; letter-spacing: .09em; line-height: 1.7; text-align: center; transition: background-color .22s ease, border-color .22s ease, color .22s ease; }
.button-primary { color: #fffef8; background: var(--sage); border-color: var(--sage); }
.button-primary:hover { color: #fffef8; background: var(--sage-dark); border-color: var(--sage-dark); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; padding: 5px 0; border: 0; border-bottom: 1px solid #93998b; background: none; font-size: 14px; letter-spacing: .07em; line-height: 1.8; text-align: left; transition: color .2s ease, border-color .2s ease; }
.text-link:hover { color: var(--sage); border-bottom-color: var(--sage-dark); }
.hero-note { margin-top: 30px; font-size: 12px; color: var(--muted); letter-spacing: .08em; }
.hero-art { position: relative; width: 100%; max-width: 364px; justify-self: end; }
.hero-art picture { display: block; aspect-ratio: 364 / 520; overflow: hidden; background: #dfddd3; }
.hero-image { width: 100%; height: 100%; object-fit: cover; }
.light-drift { position: absolute; inset: 4px 5px 31px; pointer-events: none; background: linear-gradient(132deg, transparent 16%, rgb(255 252 231 / 0) 36%, rgb(255 252 231 / .16) 50%, rgb(255 252 231 / 0) 72%); mix-blend-mode: soft-light; animation: window-light 26s ease-in-out infinite alternate; }
@keyframes window-light { from { transform: translate(-4px, -3px); opacity: .35; } to { transform: translate(4px, 3px); opacity: .9; } }
.image-caption { margin-top: 10px; color: var(--muted); font-family: var(--serif); font-size: 11px; letter-spacing: .12em; text-align: right; }
.hero-bottom { display: flex; justify-content: space-between; align-items: center; min-height: 66px; padding-block: 12px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; letter-spacing: .09em; }
.scroll-link { min-height: 44px; display: inline-flex; align-items: center; gap: 20px; }
.scroll-link::after { content: ''; width: 1px; height: 22px; background: #a2a796; }
.section { padding-block: 108px; }
.section-heading { margin-bottom: 52px; }
.section-kicker { margin-bottom: 13px; color: var(--muted); font-size: 12px; letter-spacing: .13em; }
h2 { font-size: 32px; line-height: 1.65; letter-spacing: .09em; }
h3 { font-size: 22px; line-height: 1.7; letter-spacing: .07em; }
.about-grid { display: grid; grid-template-columns: 280px 1fr; gap: 80px; align-items: start; }
.portrait-frame { max-width: 310px; }
.portrait { width: 100%; height: auto; background: #e0e1d8; }
.portrait-frame figcaption { margin-top: 16px; color: var(--muted); font-size: 12px; letter-spacing: .08em; }
.about-copy { max-width: none; min-width: 0; }
.lead { color: var(--ink); font-family: var(--serif); font-size: 22px; line-height: 1.9; font-weight: 400; letter-spacing: .055em; }
.about-copy > p:not(.lead), .approach-copy > p:not(.lead), .community-copy > p { color: #5c6457; }
.profile-facts { margin-top: 34px; display: grid; grid-template-columns: 1fr; row-gap: 20px; }
.profile-facts > div { min-width: 0; display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 22px; align-items: baseline; }
.profile-facts dt { color: var(--muted); font-size: 12px; letter-spacing: .06em; }
.profile-facts dd { margin: 0; color: var(--ink); font-size: 14px; line-height: 1.9; }
.disclosure { margin-top: 34px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.disclosure > summary { min-height: 58px; padding: 15px 2px; display: flex; justify-content: space-between; align-items: center; gap: 20px; cursor: pointer; list-style: none; color: var(--ink); font-size: 14px; letter-spacing: .06em; }
.disclosure > summary::-webkit-details-marker { display: none; }
.disclosure > summary::marker { content: ''; }
.plus { position: relative; width: 15px; height: 15px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 19px; font-weight: 300; line-height: 1; transition: transform .2s ease; }
.disclosure[open] .plus { transform: rotate(45deg); }
.disclosure-content { overflow: hidden; padding: 2px 2px 22px; color: #5c6457; font-size: 14px; line-height: 2; }
.plain-list { padding-left: 1.1em; }
.plain-list li { padding-left: 5px; }
.plain-list li + li { margin-top: 12px; }
.disclosure-content p + .plain-list { margin-top: 14px; }
.disclosure-content .plain-list + p { margin-top: 20px; }
.section-topics { position: relative; background: rgb(226 230 217 / .28); }
.section-topics .section-heading { margin-bottom: 34px; }
.topics-list { border-top: 1px solid #d5dacc; }
.topic-row { display: grid; grid-template-columns: 290px 1fr; gap: 40px; align-items: baseline; padding-block: 27px; border-bottom: 1px solid #d5dacc; }
.topic-index { display: none; }
.topic-row h3 { font-size: 21px; }
.topic-row p { max-width: 680px; color: #5c6457; font-size: 15px; }
.approach-grid { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 66px; }
.approach-grid .section-heading { margin-bottom: 0; }
.approach-copy { min-width: 0; max-width: 650px; }
.approach-copy .lead { font-size: 23px; }
.approach-copy .disclosure { margin-top: 32px; }
.approach-copy .disclosure-content { padding: 24px 2px 34px; }
.approach-copy .disclosure-content h3 { font-size: 19px; line-height: 1.7; letter-spacing: .055em; }
.approach-copy .disclosure-content h3 + .plain-list { margin-top: 18px; }
.approach-copy .disclosure-content .plain-list li + li { margin-top: 18px; }
.approach-copy .disclosure-content .plain-list + h3 { margin-top: 36px; }
.approach-copy .disclosure-content h3 + p { margin-top: 16px; }
.community-section { padding-block: 84px; background: rgb(235 231 218 / .28); }
.community-grid { display: grid; grid-template-columns: 310px 1fr; gap: 116px; }
.community-grid .section-heading { margin-bottom: 0; }
.community-copy { max-width: 650px; min-width: 0; }
.community-copy p { line-height: 2; }
.community-copy .community-note { margin-top: 25px; font-size: 13px; color: var(--muted); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: center; gap: 100px; padding-inline: 32px; }
.contact-copy { max-width: 680px; min-width: 0; }
.contact-copy h2 { font-size: 36px; }
.contact-copy > p:not(.section-kicker) { max-width: 600px; margin-top: 22px; color: #5c6457; }
.contact-copy .button { margin-top: 30px; }
.qr-block { width: 260px; text-align: center; }
.qr-trigger { display: block; width: 232px; max-width: 100%; margin-inline: auto; padding: 0; border: 0; border-radius: 0; background: #fff; line-height: 0; }
.qr-image { width: 100%; height: auto; object-fit: contain; }
.qr-caption { margin-top: 16px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.qr-save { display: inline-flex; justify-content: center; align-items: center; min-height: 44px; color: var(--sage-dark); font-size: 12px; text-underline-offset: 5px; text-decoration: underline; text-decoration-color: #a2a995; }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 100px; padding-block: 22px; display: flex; justify-content: space-between; align-items: center; gap: 24px; color: var(--muted); font-size: 12px; letter-spacing: .06em; }
.footer-inner a { min-height: 44px; display: inline-flex; align-items: center; }
.wechat-dialog { width: min(430px, calc(100vw - 32px)); max-width: none; max-height: calc(100dvh - 32px); margin: auto; padding: 0; overflow: auto; border: 1px solid #d3d8c9; border-radius: 0; color: var(--ink); background: var(--paper); }
.wechat-dialog::backdrop { background: rgb(39 47 35 / .43); backdrop-filter: blur(3px); }
.dialog-inner { position: relative; padding: 38px 34px 28px; text-align: center; }
.dialog-close { position: absolute; top: 5px; right: 6px; width: 44px; height: 44px; display: grid; place-items: center; padding: 0; border: 0; background: transparent; color: var(--ink); font-size: 26px; line-height: 1; font-weight: 300; }
.dialog-heading .section-kicker { margin-bottom: 9px; font-size: 11px; }
.dialog-heading h2 { font-size: 27px; letter-spacing: .08em; }
.dialog-heading > p:last-child { margin-top: 10px; color: var(--muted); font-size: 13px; }
.dialog-qr { width: 280px; max-width: 100%; height: auto; margin: 22px auto 16px; background: #fff; }
.dialog-help { color: #5c6457; font-size: 12px; line-height: 1.9; }
.dialog-inner > .button { margin-top: 21px; }
.dialog-inner > .text-link { margin: 12px auto 0; display: flex; width: fit-content; min-height: 40px; color: var(--muted); font-size: 12px; }
.portrait-frame figcaption small { display: inline-block; margin-left: 10px; font-size: inherit; letter-spacing: .04em; }
.about-copy > p, .contact-copy > p { text-wrap: pretty; }
.language-switch { min-width: 44px; min-height: 44px; padding: 5px 0 5px 22px; margin-left: 2px; border: 0; border-left: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--muted); font: inherit; letter-spacing: .035em; cursor: pointer; transition: color .2s ease, border-color .2s ease; }
.language-switch:hover { color: var(--sage-dark); border-color: #a4ae98; }
.desktop-nav a[aria-current='location'] { color: var(--sage-dark); text-decoration: underline; text-decoration-thickness: 1px; text-decoration-color: #a4ae98; text-underline-offset: 9px; }
html[lang='en'] body { letter-spacing: .005em; line-height: 1.8; }
html[lang='en'] .hero-title { font-size: 40px; line-height: 1.5; letter-spacing: .012em; }
html[lang='en'] .hero-subtitle { font-size: 17px; line-height: 1.75; letter-spacing: .015em; }
html[lang='en'] .hero-credentials, html[lang='en'] .hero-note { letter-spacing: .025em; }
html[lang='en'] h2, html[lang='en'] h3, html[lang='en'] .lead { letter-spacing: .01em; line-height: 1.5; }
html[lang='en'] .section-heading, html[lang='en'] .contact-copy { min-width: 0; }
html[lang='en'] .profile-facts > div { grid-template-columns: 110px minmax(0, 1fr); }
html[lang='en'] .profile-facts dt, html[lang='en'] .button, html[lang='en'] .text-link { letter-spacing: .015em; }
html[lang='en'] .image-caption, html[lang='en'] .hero-bottom { letter-spacing: .025em; }
html[lang='en'] .approach-grid h2, html[lang='en'] .community-grid h2 { max-width: 100%; }
@media (min-width: 1600px) {
  .header-inner { min-height: 130px; }
  .hero { min-height: 690px; }
}
@media (max-width: 1100px) {
  .shell { width: calc(100% - 80px); }
  .hero { grid-template-columns: 1fr 330px; gap: 55px; min-height: 600px; }
  .hero-copy { padding-left: 20px; }
  .hero-title { font-size: 43px; }
  .hero-art { max-width: 330px; }
  .hero-actions { gap: 24px; }
  .about-grid, .community-grid { grid-template-columns: 270px 1fr; gap: 65px; }
  .approach-grid { grid-template-columns: 350px minmax(0, 1fr); gap: 40px; }
  .about-grid { grid-template-columns: 240px minmax(0, 1fr); gap: 55px; }
  .topic-row { grid-template-columns: 240px 1fr; gap: 30px; }
  .contact-grid { padding-inline: 20px; gap: 65px; }
}
@media (max-width: 820px) {
  .shell { width: calc(100% - 64px); }
  .header-inner { min-height: 105px; }
  .brand { gap: 12px; }
  .brand-logo { width: 62px; height: 62px; }
  .desktop-nav { gap: 25px; font-size: 13px; }
  .hero { grid-template-columns: 1fr 280px; gap: 34px; min-height: 550px; padding-top: 24px; padding-bottom: 45px; }
  .hero-copy { padding-left: 0; }
  .hero-title { font-size: 38px; letter-spacing: .07em; }
  html[lang='en'] .hero-title { font-size: 34px; }
  .hero-subtitle { font-size: 16px; letter-spacing: .04em; }
  .hero-credentials { margin-top: 20px; font-size: 11px; }
  .hero-actions { gap: 22px; margin-top: 28px; }
  .button { padding-inline: 20px; }
  .hero-art { max-width: 280px; }
  .section { padding-block: 84px; }
  .section-heading { margin-bottom: 38px; }
  h2 { font-size: 29px; }
  .about-grid { grid-template-columns: 230px 1fr; gap: 40px; }
  .lead { font-size: 20px; }
  .profile-facts { grid-template-columns: 1fr; gap: 18px; margin-top: 25px; }
  .topic-row { grid-template-columns: 205px 1fr; gap: 25px; }
  .topic-row h3 { font-size: 19px; }
  .topic-row p { font-size: 14px; }
  .community-grid { grid-template-columns: 230px 1fr; gap: 40px; }
  .approach-grid { display: block; }
  .approach-grid .section-heading { margin-bottom: 30px; }
  .approach-copy .lead { font-size: 21px; }
  .community-section { padding-block: 70px; }
  .contact-grid { grid-template-columns: 1fr 220px; gap: 40px; padding-inline: 0; }
  .contact-copy h2 { font-size: 30px; }
  .qr-block { width: 220px; }
  .qr-trigger { width: 204px; }
}
@media (max-width: 650px) {
  html { scroll-padding-top: 22px; }
  .shell { width: calc(100% - 48px); }
  .header-inner { min-height: 100px; gap: 16px; }
  .brand { gap: 8px; }
  .brand-logo { width: 52px; height: 52px; }
  .desktop-nav { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; font-size: 13px; letter-spacing: .025em; }
  .desktop-nav a { justify-content: center; }
  .header-inner { position: relative; flex-wrap: wrap; padding-top: 16px; padding-bottom: 4px; gap: 8px; }
  .language-switch { position: absolute; right: 0; top: 22px; padding: 5px 10px; border: 1px solid var(--line); font-size: 12px; }
  .hero { display: flex; flex-direction: column; align-items: stretch; gap: 40px; min-height: 0; padding-top: 38px; padding-bottom: 36px; }
  .hero-copy { padding-left: 9px; padding-bottom: 0; }
  .hero-title { font-size: 34px; letter-spacing: .1em; line-height: 1.7; }
  html[lang='en'] .hero-title { font-size: 30px; }
  html[lang='en'] .hero-subtitle { font-size: 16px; }
  html[lang='en'] .profile-facts > div { grid-template-columns: 92px minmax(0, 1fr); gap: 14px; }
  .hero-subtitle { margin-top: 22px; font-size: 16px; letter-spacing: .065em; }
  .hero-credentials { max-width: 300px; margin-top: 22px; font-size: 11px; }
  .hero-actions { margin-top: 26px; gap: 28px; }
  .hero-note { margin-top: 21px; font-size: 11px; }
  .hero-art { width: 78%; max-width: 320px; align-self: flex-end; }
  .hero-art picture { aspect-ratio: 320 / 405; }
  .light-drift { bottom: 30px; }
  .image-caption { margin-top: 8px; font-size: 10px; }
  .hero-bottom { min-height: 66px; font-size: 11px; letter-spacing: .055em; }
  .section { padding-block: 72px; }
  .section-heading { margin-bottom: 34px; }
  .section-kicker { margin-bottom: 11px; font-size: 11px; }
  h2 { font-size: 27px; letter-spacing: .075em; }
  .about-grid { display: flex; flex-direction: column; gap: 35px; }
  .portrait-frame { width: 65%; max-width: 265px; }
  .portrait-frame figcaption { margin-top: 12px; font-size: 11px; }
  .about-copy { width: 100%; }
  .lead { font-size: 20px; line-height: 1.9; }
  .about-copy > p:not(.lead), .approach-copy > p:not(.lead), .community-copy > p { font-size: 15px; }
  .profile-facts { grid-template-columns: 1fr; gap: 22px; margin-top: 28px; }
  .profile-facts > div { grid-template-columns: 72px minmax(0, 1fr); gap: 16px; }
  .profile-facts dt { font-size: 11px; }
  .profile-facts dd { font-size: 13px; }
  .disclosure { margin-top: 29px; }
  .disclosure > summary { padding-block: 15px; min-height: 58px; font-size: 13px; }
  .disclosure-content { font-size: 13px; }
  .section-topics .section-heading { margin-bottom: 29px; }
  .topic-row { display: block; padding-block: 24px; }
  .topic-row h3 { margin-bottom: 9px; font-size: 21px; }
  .topic-row p { max-width: none; font-size: 14px; line-height: 1.9; }
  .approach-grid, .community-grid { display: block; }
  .approach-grid .section-heading, .community-grid .section-heading { margin-bottom: 31px; }
  .approach-copy .lead { font-size: 20px; }
  .approach-copy .disclosure-content { padding: 18px 2px 24px; }
  .approach-copy .disclosure-content h3 { font-size: 18px; }
  .approach-copy .disclosure-content h3 + .plain-list { margin-top: 16px; }
  .approach-copy .disclosure-content .plain-list li + li { margin-top: 14px; }
  .approach-copy .disclosure-content .plain-list + h3 { margin-top: 28px; }
  .approach-copy .disclosure-content h3 + p { margin-top: 14px; }
  .community-section { padding-block: 65px; }
  .community-copy .community-note { margin-top: 22px; font-size: 12px; }
  .contact-grid { display: block; }
  .contact-copy h2 { font-size: 29px; }
  .contact-copy > p:not(.section-kicker) { margin-top: 20px; font-size: 15px; }
  .contact-copy .button { margin-top: 25px; }
  .qr-block { width: 250px; max-width: 100%; margin: 42px auto 0; }
  .qr-trigger { width: 232px; }
  .qr-caption { font-size: 12px; }
  .footer-inner { min-height: 110px; padding-block: 20px; flex-direction: column; justify-content: center; align-items: flex-start; gap: 3px; font-size: 11px; }
  .footer-inner a { min-height: 34px; }
  .dialog-inner { padding: 38px 25px 23px; }
  .dialog-heading h2 { font-size: 25px; }
  .dialog-qr { width: 270px; }
}
@media (max-width: 360px) {
  .shell { width: calc(100% - 40px); }
  .header-inner { gap: 10px; }
  .brand-logo { width: 44px; height: 44px; }
  .desktop-nav { gap: 6px; font-size: 12px; }
  .hero-copy { padding-left: 4px; }
  .hero-title { font-size: 32px; }
  html[lang='en'] .hero-title { font-size: 28px; }
  html[lang='en'] .approach-grid h2 { font-size: 24px; letter-spacing: .01em; }
  .hero-subtitle { font-size: 15px; letter-spacing: .025em; }
  .hero-actions { gap: 25px; }
  .hero-art { width: 83%; }
  .profile-facts { grid-template-columns: 1fr; gap: 18px; }
  .dialog-inner { padding-inline: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
  .light-drift { animation: none; transform: none; opacity: .5; }
}