:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0066cc;
  --blue-bright: #0071e3;
  --surface: #f5f5f7;
  --line: #d2d2d7;
  --navy: #071429;
  --white: #fff;
  --radius: 30px;
  --shadow: 0 24px 70px rgba(7, 20, 41, .08);
  --component-radius: 12px;
  --component-border: #dde3ea;
}

* { box-sizing: border-box; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 56px;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav-inner, .container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.nav-inner { height: 100%; display: flex; align-items: center; gap: 30px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 760; letter-spacing: -.03em; }
.brand-logo-image { width: 58px; height: 58px; display: block; object-fit: contain; }
.header-brand { gap: 8px; }
.brand-symbol { width: 36px; height: 36px; flex: 0 0 36px; overflow: hidden; border-radius: 8px; }
.brand-symbol img { width: 100%; height: 100%; display: block; object-fit: cover; }
.brand-wordmark { color: #001b4b; font-family: Georgia, 'Times New Roman', serif; font-size: 21px; font-weight: 500; letter-spacing: -.035em; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 27px; margin-left: auto; font-size: 13px; }
.nav-links a { text-decoration: none; color: #424245; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); }
.language-button, .nav-cta, .button { border: 0; border-radius: 999px; cursor: pointer; }
.language-button { padding: 7px 10px; color: #424245; background: #f0f0f2; }
.nav-cta { padding: 9px 16px; background: var(--blue-bright); color: white !important; font-weight: 650; }
.menu-button { display: none; margin-left: auto; border: 0; background: transparent; font-size: 24px; }

.hero { padding: 118px 20px 102px; text-align: center; background: linear-gradient(180deg,#fff 66%,#f7f9fc); }
.eyebrow { color: var(--blue); font-size: 15px; font-weight: 720; letter-spacing: .01em; }
h1, h2, h3, p { margin-top: 0; }
.hero h1 { max-width: 1050px; margin: 14px auto 25px; font-size: clamp(62px,8vw,112px); line-height: .91; letter-spacing: -.07em; }
.hero h1.homepage-slogan { max-width: none; font-size: clamp(42px,5vw,76px); letter-spacing: -.055em; white-space: nowrap; }
.hero .lead { max-width: 820px; margin: 0 auto 34px; color: var(--muted); font-size: clamp(20px,2.2vw,28px); line-height: 1.36; letter-spacing: -.025em; }
.actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 13px 22px; text-decoration: none; background: var(--blue-bright); color: white; font-weight: 650; }
.button.secondary { color: var(--blue); background: #e8f2ff; }
.text-link { color: var(--blue); text-decoration: none; font-weight: 600; }
.text-link:hover { text-decoration: underline; }

.section { padding: 112px 0; }
.section.soft { background: var(--surface); }
.section.dark { background: #030711; color: white; }
.section-head { max-width: 820px; margin: 0 auto 58px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-title { margin: 12px 0 18px; font-size: clamp(42px,5.5vw,72px); line-height: 1; letter-spacing: -.055em; }
.section-copy { color: var(--muted); font-size: 20px; line-height: 1.5; }
.dark .section-copy { color: #a1a1a6; }

.intro-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 76px; align-items: start; }
.intro-grid h2 { position: sticky; top: 100px; font-size: clamp(42px,5vw,66px); line-height: 1; letter-spacing: -.055em; }
.intro-copy p { color: #424245; font-size: 24px; line-height: 1.48; letter-spacing: -.025em; }
body[data-page="about"] .intro-grid { grid-template-columns: 1.1fr .9fr; gap: 64px; }
body[data-page="about"] .intro-grid h2 { max-width: none; font-size: clamp(30px,3vw,38px); white-space: nowrap; }
html[lang="zh-CN"] body[data-page="about"] .intro-grid h2 { font-size: clamp(38px,4.2vw,54px); line-height: 1.08; letter-spacing: -.04em; }
.principles { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 38px 0 32px; }
.principle { padding: 22px; border-radius: 22px; background: var(--surface); }
.principle strong { display: block; margin-bottom: 7px; font-size: 17px; }
.principle span { color: var(--muted); font-size: 14px; line-height: 1.45; }

.film-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 68px; align-items: center; }
.film-copy h2 { margin: 12px 0 22px; font-size: clamp(46px,6vw,76px); line-height: .98; letter-spacing: -.06em; }
.film-copy p { color: #a1a1a6; font-size: 20px; line-height: 1.5; }
.film-stage { position: relative; min-height: 540px; overflow: hidden; border-radius: 38px; background: radial-gradient(circle at 45% 34%,#1766cc 0,#0b2c62 36%,#030711 75%); box-shadow: 0 35px 100px rgba(0,113,227,.22); }
.film-orbit { position: absolute; width: 520px; height: 520px; top: 10px; right: -45px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.film-orbit::before, .film-orbit::after { content: ""; position: absolute; inset: 60px; border: inherit; border-radius: inherit; }
.film-orbit::after { inset: 130px; }
.film-card { position: absolute; left: 50%; top: 50%; width: 260px; height: 390px; transform: translate(-50%,-50%); display: grid; place-items: center; text-align: center; border: 1px solid rgba(255,255,255,.18); border-radius: 34px; background: rgba(4,11,28,.62); backdrop-filter: blur(18px); }
.play { width: 66px; height: 66px; margin: 0 auto 20px; display: grid; place-items: center; border-radius: 50%; background: white; color: #111; font-size: 22px; }
.film-note { color: #aebed4; font-size: 13px; }

.map-card { position: relative; min-height: 520px; overflow: hidden; border: 1px solid #e6ebf2; border-radius: 38px; background: radial-gradient(circle at 52% 45%,#e7f1ff,#f8fafc 54%,#fff 82%); }
.world-map { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .8; }
.map-dot { position: absolute; width: 12px; height: 12px; border: 3px solid white; border-radius: 50%; background: var(--blue-bright); box-shadow: 0 0 0 7px rgba(0,113,227,.14); }
.map-dot.one { left: 23%; top: 42%; }.map-dot.two { left: 48%; top: 33%; }.map-dot.three { left: 70%; top: 40%; }.map-dot.four { left: 52%; top: 62%; }
.map-stat { position: absolute; padding: 14px 17px; border: 1px solid rgba(0,0,0,.06); border-radius: 17px; background: rgba(255,255,255,.85); box-shadow: 0 18px 45px rgba(7,20,41,.08); backdrop-filter: blur(18px); }
.map-stat strong { display: block; font-size: 20px; }.map-stat span { color: var(--muted); font-size: 12px; }
.map-stat.a { left: 7%; bottom: 12%; }.map-stat.b { right: 7%; top: 10%; }

.three-grid, .four-grid, .expert-grid, .article-grid { display: grid; gap: 18px; }
.three-grid { grid-template-columns: repeat(3,1fr); }
.four-grid { grid-template-columns: repeat(2,1fr); }
.step-card, .service-card, .info-card { padding: 34px; border-radius: var(--radius); background: white; }
.step-number { width: 45px; height: 45px; display: grid; place-items: center; border-radius: 50%; color: var(--blue); background: #e8f2ff; font-weight: 760; }
.step-card h3, .service-card h3 { margin: 55px 0 12px; font-size: 27px; letter-spacing: -.04em; }
.step-card p, .service-card p, .info-card p { margin-bottom: 0; color: var(--muted); line-height: 1.55; }
.service-card { min-height: 320px; background: var(--surface); }
.service-card:nth-child(2) { background: #eaf3ff; }
.service-card:nth-child(3) { background: #f4f8ff; }
.service-card:nth-child(3) p { color: var(--muted); }
.service-card h3 { margin-top: 18px; font-size: 34px; }
.service-list { padding: 0; margin: 28px 0 0; list-style: none; }
.service-list li { padding: 8px 0; color: var(--muted); border-top: 1px solid rgba(110,110,115,.18); }
.service-card:nth-child(3) .service-list li { color: var(--muted); border-color: rgba(110,110,115,.18); }

.expert-grid { grid-template-columns: repeat(3,1fr); }
.expert-card { overflow: hidden; display: grid; grid-template-columns: 100px minmax(0,1fr); gap: 18px; align-items: start; padding: 20px; border-radius: 28px; background: white; box-shadow: 0 8px 36px rgba(7,20,41,.05); }
.expert-photo { width: 100px; height: 100px; border-radius: 8px; object-fit: cover; object-position: center; background: #dce6f3; }
.expert-body { min-width: 0; padding: 0; }
.expert-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; }
.expert-card h3 { margin: 17px 0 7px; font-size: 26px; letter-spacing: -.035em; }
.expert-expertise { min-height: 48px; color: #424245; line-height: 1.45; }
.expert-facts { margin: 18px 0 21px; display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
.expert-facts b { color: #424245; }
.expert-card .button { width: 100%; padding: 11px 16px; }
.loading-card { min-height: 480px; display: grid; place-items: center; border-radius: 28px; color: var(--muted); background: white; }
.expert-skeleton { position: relative; min-height: 260px; overflow: hidden; padding: 24px; border: 1px solid var(--component-border); border-radius: var(--component-radius); background: #fff; }
.expert-skeleton::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent); animation: skeleton-shimmer 1.4s infinite; }
.expert-skeleton span, .expert-skeleton i { display: block; border-radius: 6px; background: #edf1f6; }
.expert-skeleton span { width: 100px; height: 100px; margin-bottom: 26px; }
.expert-skeleton i { width: 72%; height: 13px; margin-top: 12px; }
.expert-skeleton i:last-child { width: 46%; }
@keyframes skeleton-shimmer { to { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce) { .expert-skeleton::after { animation: none; } }

.founder-panel { display: grid; grid-template-columns: .88fr 1.12fr; min-height: 570px; overflow: hidden; border-radius: 40px; border: 1px solid #e0e5ec; background: #f7faff; color: var(--ink); }
.founder-visual { position: relative; align-self: center; justify-self: center; width: calc(100% - 72px); min-height: 0; aspect-ratio: 3/4; overflow: hidden; border-radius: 16px; background: #f4f8ff url('founder-ling-li.jpg') center / contain no-repeat; }
.founder-visual::before { display: none; }
.founder-visual span { position: absolute; left: 36px; bottom: 34px; padding: 8px 12px; border-radius: 6px; color: white; background: rgba(7,20,41,.62); font-size: 14px; }
.founder-text { align-self: center; padding: 68px; }
.founder-text h2 { margin: 12px 0 22px; font-size: clamp(36px,4vw,52px); line-height: 1.04; letter-spacing: -.05em; }
body[data-page="about"] .founder-text { padding-inline: 48px; }
body[data-page="about"] .founder-text h2 { font-size: clamp(24px,1.9vw,28px); letter-spacing: -.035em; white-space: nowrap; }
.founder-focus-line { display: inline; }
.founder-text p { color: #4c5159; font-size: 18px; line-height: 1.55; }

.page-hero { padding: 100px 20px 74px; text-align: center; background: linear-gradient(180deg,#fff,#f5f5f7); }
.page-hero h1 { margin: 14px auto 20px; max-width: 980px; font-size: clamp(54px,7vw,92px); line-height: .94; letter-spacing: -.065em; }
.page-hero p { max-width: 760px; margin: auto; color: var(--muted); font-size: 21px; line-height: 1.45; }
.filters { display: grid; grid-template-columns: repeat(3,1fr) auto; gap: 10px; margin-bottom: 38px; padding: 16px; border-radius: 22px; background: white; }
.field label { display: block; margin: 0 0 7px 4px; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: white; }
.filters .button { align-self: end; padding: 13px 18px; }
.directory-grid { grid-template-columns: repeat(2,1fr); }
.directory-grid .expert-card { height: 100%; }
.directory-grid .expert-body { height: 100%; display: flex; flex-direction: column; }
.directory-grid .expert-expertise { min-height: 0; display: block; max-height: 4.35em; margin-bottom: 0; overflow: hidden; }
.directory-grid .expert-facts { margin: 14px 0 18px; }
.directory-grid .profile-button { margin-top: auto; }
.pagination { margin-top: 36px; display: flex; align-items: center; justify-content: center; gap: 18px; }
.pagination[hidden] { display: none; }
.pagination span { min-width: 120px; text-align: center; color: var(--muted); font-size: 14px; }
.pagination .button { min-width: 108px; }
.pagination .button:disabled { cursor: default; opacity: .4; }
dialog[data-expert-modal] { width: min(680px,calc(100% - 32px)); max-height: min(86vh,820px); overflow: hidden; border: 0; border-radius: 28px; padding: 0; box-shadow: 0 30px 100px rgba(0,0,0,.25); }
dialog[data-expert-modal]::backdrop { background: rgba(17,24,39,.48); backdrop-filter: blur(4px); }
dialog[data-expert-modal] [data-modal-content] { position: relative; max-height: min(86vh,820px); overflow-y: auto; padding: 34px; }
.expert-modal-close { position: absolute; top: 20px; right: 20px; width: 36px; height: 36px; border: 0; border-radius: 50%; color: #3a3d44; background: #f1f3f6; font-size: 22px; line-height: 1; cursor: pointer; }
.expert-modal-head { margin-bottom: 26px; padding-right: 46px; display: flex; align-items: center; gap: 20px; }
.expert-modal-head img { width: 112px; height: 112px; border-radius: 10px; object-fit: cover; }
.expert-modal-head h2 { margin-top: 7px; }
.expert-modal-facts { margin: 0; padding: 22px; display: grid; gap: 20px; border: 1px solid var(--line); border-radius: 18px; background: #f7f9fc; }
.expert-modal-facts div { display: grid; gap: 6px; }
.expert-modal-facts dt { color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.expert-modal-facts dd { margin: 0; color: var(--ink); font-size: 15px; line-height: 1.5; }
.expert-modal-section { margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--line); }
.expert-modal-section h3 { margin: 0 0 16px; font-size: 20px; letter-spacing: -.02em; }
.expert-modal-list { margin: 0; padding-left: 20px; display: grid; gap: 12px; color: #3f4651; }
.expert-modal-list li { padding-left: 4px; line-height: 1.55; }

.application-panel { display: grid; grid-template-columns: .72fr 1.28fr; gap: 52px; align-items: start; }
.application-copy { position: sticky; top: 100px; }
.application-copy h2 { margin: 12px 0 20px; font-size: clamp(28px,3.3vw,42px); line-height: 1; letter-spacing: -.045em; white-space: nowrap; }
.application-toggle { display: none; }
.form-card { padding: 36px; border-radius: 28px; background: white; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field.full { grid-column: 1/-1; }
.form-note, .status-message { color: var(--muted); font-size: 13px; line-height: 1.45; }
.status-message { display: none; margin-top: 15px; padding: 13px; border-radius: 12px; color: #075a34; background: #e8f8ef; }
.status-message.show { display: block; }
.status-message.error { color: #8b1e1e; background: #fff0f0; }
.form-help { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.form-card input[type="file"]::file-selector-button { margin-right: 12px; padding: 9px 13px; border: 0; border-radius: 8px; color: #075fb9; background: #eaf3ff; font: inherit; font-weight: 650; cursor: pointer; }
.form-card button:disabled { cursor: wait; opacity: .65; }

.process-list { max-width: 900px; margin: 0 auto; }
.process-row { display: grid; grid-template-columns: 90px 1fr; gap: 22px; padding: 30px 0; border-top: 1px solid var(--line); }
.process-row strong { color: var(--blue); font-size: 15px; }.process-row h3 { margin-bottom: 8px; font-size: 26px; }.process-row p { margin-bottom: 0; color: var(--muted); line-height: 1.5; }

.article-grid { grid-template-columns: repeat(3,1fr); }
.article-card { overflow: hidden; border-radius: 26px; background: white; }
.article-image { height: 220px; background: linear-gradient(145deg,#dbeaff,#7ba9e6); }
.article-card:nth-child(2) .article-image { background: linear-gradient(145deg,#e6dfd5,#b09270); }
.article-card:nth-child(3) .article-image { background: linear-gradient(145deg,#e6f1e7,#7baa86); }
.article-body { padding: 25px; }.article-type { color: var(--blue); font-size: 12px; font-weight: 700; }.article-card h3 { margin: 12px 0; font-size: 24px; line-height: 1.15; letter-spacing: -.035em; }.article-card p { color: var(--muted); line-height: 1.5; }
.featured-story { display: grid; grid-template-columns: 1.1fr .9fr; overflow: hidden; min-height: 480px; border-radius: 38px; background: var(--navy); color: white; }
.featured-art { background: radial-gradient(circle at 35% 45%,#1976e6,#0b2e64 44%,#061126 75%); }
.featured-copy { align-self: center; padding: 60px; }.featured-copy h2 { margin: 14px 0 20px; font-size: 46px; line-height: 1.02; letter-spacing: -.05em; }.featured-copy p { color: #b5c2d5; line-height: 1.55; }
.article-layout { display: grid; grid-template-columns: minmax(0,740px) 260px; gap: 70px; align-items: start; }.article-content { font-size: 18px; line-height: 1.75; }.article-content h2 { margin-top: 48px; font-size: 34px; letter-spacing: -.035em; }.article-content .intro { font-size: 24px; color: #424245; }.article-aside { position: sticky; top: 92px; padding: 25px; border-radius: 22px; background: var(--surface); }.article-aside a { display: block; padding: 8px 0; color: var(--blue); text-decoration: none; font-size: 14px; }

.about-values { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }.value-card { min-height: 270px; padding: 31px; border-radius: 28px; background: var(--surface); }.value-card h3 { margin-top: 80px; font-size: 27px; }.value-card p { color: var(--muted); line-height: 1.5; }
.timeline { position: relative; padding-left: 34px; }.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; background: #b7c9df; }.timeline-item { position: relative; margin-bottom: 28px; }.timeline-item::before { content: ""; position: absolute; left: -33px; top: 7px; width: 13px; height: 13px; border: 3px solid white; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 1px #b7c9df; }.timeline-item h3 { margin-bottom: 7px; font-size: 20px; }.timeline-item p { color: var(--muted); line-height: 1.5; }

.legal-nav { position: sticky; top: 72px; z-index: 20; display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 42px; padding: 10px; border: 1px solid rgba(210,210,215,.72); border-radius: 16px; background: rgba(255,255,255,.92); backdrop-filter: blur(18px); }.legal-nav a { padding: 9px 13px; border-radius: 99px; color: var(--blue); background: #e8f2ff; text-decoration: none; font-size: 13px; white-space: nowrap; }.legal-section { max-width: 860px; margin: 0 auto; padding: 50px 0; border-top: 1px solid var(--line); scroll-margin-top: 138px; }.legal-section h2 { font-size: 38px; letter-spacing: -.04em; }.legal-section h3 { margin-top: 30px; }.legal-section p, .legal-section li { color: #525257; line-height: 1.7; }.contact-card { display: flex; justify-content: space-between; gap: 30px; padding: 30px; border-radius: 24px; background: var(--surface); }
.back-to-top { position: fixed; right: 24px; bottom: 24px; z-index: 25; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #d9e2ee; border-radius: 50%; color: var(--blue); background: rgba(255,255,255,.94); box-shadow: 0 8px 24px rgba(7,20,41,.12); text-decoration: none; font-size: 20px; }
.wechat-qr { width: 150px; height: 150px; flex: 0 0 150px; border: 10px solid white; border-radius: 18px; box-shadow: 0 10px 30px rgba(0,0,0,.1); object-fit: cover; }

.cta { padding: 120px 20px; text-align: center; background: linear-gradient(155deg,#e7f2ff,#fff); }
.cta h2 { max-width: 900px; margin: 0 auto 24px; font-size: clamp(42px,5vw,64px); line-height: 1; letter-spacing: -.055em; }
.cta p { margin-bottom: 30px; color: var(--muted); font-size: 20px; }
.site-footer { padding: 50px 0 28px; color: #6e6e73; background: var(--surface); font-size: 12px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3,1fr); gap: 34px; padding-bottom: 35px; border-bottom: 1px solid var(--line); }
.footer-group { border: 0; }
.footer-group summary { display: block; color: var(--ink); font-weight: 700; cursor: pointer; list-style: none; }
.footer-group summary::-webkit-details-marker { display: none; }
.footer-group summary::after { content: '+'; display: none; margin-left: auto; color: var(--blue); font-size: 18px; font-weight: 400; }
.footer-group[open] summary::after { content: '−'; }
.footer-grid a { display: block; margin: 9px 0; text-decoration: none; }.footer-grid a:hover { color: var(--blue); }.footer-bottom { display: flex; justify-content: space-between; gap: 25px; padding-top: 20px; }.footer-bottom a { color: inherit; }
.footer-contact { display: flex; align-items: flex-end; gap: 16px; }
.footer-contact-lines { display: grid; gap: 5px; }
.footer-contact-line { display: block; white-space: nowrap; }
.footer-wechat { display: grid; justify-items: center; gap: 7px; }
.footer-wechat p { max-width: 150px; margin: 0; text-align: center; font-size: 11px; line-height: 1.35; }
.footer-qr { width: 82px; height: 82px; flex: 0 0 82px; border: 5px solid white; border-radius: 8px; object-fit: cover; box-shadow: 0 6px 18px rgba(8,29,57,.08); }
form[data-mockup-form] .form-note { display: none; }

@media (max-width: 980px) {
  .nav-links { display: none; position: absolute; top: 56px; left: 0; right: 0; padding: 22px; background: rgba(255,255,255,.98); box-shadow: 0 18px 35px rgba(0,0,0,.08); }
  .nav-links.open { display: grid; gap: 18px; }
  .menu-button { display: block; }.language-button { margin-left: 0; }.nav-cta { display: none; }
  .intro-grid, .film-grid, .founder-panel, .application-panel, .featured-story, .article-layout { grid-template-columns: 1fr; }
  body[data-page="about"] .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  body[data-page="about"] .intro-grid h2 { white-space: normal; }
  body[data-page="about"] .founder-text h2 { font-size: clamp(30px,4vw,40px); white-space: normal; }
  .intro-grid h2, .application-copy, .article-aside { position: static; }
  .expert-grid, .directory-grid, .article-grid { grid-template-columns: repeat(2,1fr); }
  .filters { grid-template-columns: repeat(2,1fr); }
  .featured-art { min-height: 360px; }.article-aside { display: none; }
}

@media (max-width: 760px) {
  .nav-inner, .container { width: min(100% - 28px, 1180px); }
  .hero { padding: 76px 18px 70px; }.hero h1 { font-size: 58px; }.hero h1.homepage-slogan { font-size: 45px; white-space: normal; }.hero .lead { font-size: 19px; }
  .section { padding: 78px 0; }.section-head { margin-bottom: 40px; }.section-title { font-size: 43px; }.section-copy { font-size: 18px; }
  .intro-grid { gap: 25px; }.intro-grid h2 { font-size: 44px; }.intro-copy p { font-size: 20px; }.principles { grid-template-columns: 1fr; }
  .film-stage { min-height: 430px; }.film-card { width: 225px; height: 340px; }
  .map-card { min-height: 350px; }.map-stat { transform: scale(.85); }.map-stat.a { left: 1%; }.map-stat.b { right: 1%; }
  .three-grid, .four-grid, .expert-grid, .directory-grid, .article-grid, .about-values { grid-template-columns: 1fr; }
  .expert-grid.home-experts { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }.home-experts .expert-card { min-width: 87%; scroll-snap-align: start; }
  .founder-text { padding: 42px 28px; }.founder-visual { width: min(calc(100% - 40px),420px); min-height: 0; }
  .page-hero { padding: 75px 18px 56px; }.page-hero h1 { font-size: 52px; }.page-hero p { font-size: 18px; }
  .filters, .form-grid { grid-template-columns: 1fr; }.filters .button, .field.full { grid-column: auto; }.form-card { padding: 24px 18px; }
  .pagination { gap: 10px; }.pagination .button { min-width: 88px; padding-inline: 12px; }.pagination span { min-width: 96px; font-size: 12px; }
  .process-row { grid-template-columns: 58px 1fr; }.featured-copy { padding: 38px 27px; }.featured-copy h2 { font-size: 37px; }
  .contact-card, .footer-bottom { flex-direction: column; }.footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Reference-matched design system */
.nav-inner, .container, .reference-container { width: min(1160px, calc(100% - 64px)); margin: 0 auto; }
.site-nav { height: 64px; background: rgba(255,255,255,.96); }
.brand { color: #0b0d12; font-size: 18px; letter-spacing: -.03em; }
.nav-links { gap: 44px; font-size: 14px; }
.language-button { color: #111318; background: transparent; }
.nav-cta, .button { border-radius: 4px; }
.nav-cta { padding: 12px 27px; }
.button { padding: 13px 30px; }
.button.ghost { border: 1px solid #1675dc; color: #086bd2; background: rgba(255,255,255,.7); }
.button.light { color: #0067d9; background: #fff; }

.reference-hero { min-height: 455px; display: flex; align-items: center; color: #081832; background: radial-gradient(circle at 82% 25%,rgba(32,112,218,.15),transparent 34%),radial-gradient(circle at 8% 82%,rgba(190,147,72,.13),transparent 28%),linear-gradient(135deg,#fff 0%,#f8fbff 52%,#f4f8ff 100%); }
.reference-hero-inner { width: min(1160px, calc(100% - 112px)); margin: 0 auto; padding-left: clamp(0px,5vw,64px); }
.reference-hero h1 { width: max-content; max-width: 100%; margin: 0 0 25px; font-size: clamp(28px,3vw,44px); line-height: 1.02; letter-spacing: -.045em; white-space: nowrap; }
.hero-line { display: inline; }
.reference-hero p { max-width: 720px; margin-bottom: 34px; color: #34445b; font-size: 17px; line-height: 1.55; }
.hero-actions { display: flex; gap: 20px; }

.reference-section { padding: 62px 0; border-bottom: 1px solid #e7e9ed; }
.reference-section h2, .founder-band h2, .reference-cta h2 { letter-spacing: -.035em; }
.company-layout { display: grid; grid-template-columns: minmax(0,1.25fr) 245px minmax(190px,.52fr); gap: 62px; align-items: center; }
.company-copy h2 { margin-bottom: 18px; font-size: 36px; }
.company-copy > p { max-width: 600px; margin-bottom: 14px; color: #373b42; font-size: 15px; line-height: 1.58; }
.principle-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 32px; }
.principle-row div { min-width: 0; }
.principle-row .line-icon { display: block; margin-bottom: 11px; color: #006ce5; font-size: 32px; line-height: 1; }
.principle-row strong, .principle-row small { display: block; }
.principle-row strong { margin-bottom: 8px; font-size: 14px; }
.principle-row small { color: #575c64; font-size: 12px; line-height: 1.45; }
.founder-video-card { overflow: hidden; border-radius: 5px; box-shadow: 0 12px 28px rgba(8,29,57,.12); background: #08162a; }
.founder-video-card video { width: 100%; aspect-ratio: 3/4; display: block; object-fit: cover; }
.video-message h3 { max-width: 190px; margin-bottom: 18px; font-size: 23px; line-height: 1.16; }
.video-message p { color: #41464e; font-size: 15px; line-height: 1.55; }

.network-band { background: #fbfcfe; }
.network-intro { max-width: 720px; margin: 0 auto 34px; text-align: center; }
.network-intro h2 { margin-bottom: 0; font-size: 33px; line-height: 1.12; }
.blue-rule { width: 34px; height: 3px; display: block; margin: 13px 0 20px; background: #0878ec; }
.network-intro .blue-rule { margin: 13px auto 18px; }
.network-overview { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 24px; margin: 0 0 14px; color: #0872df; font-size: 14px; }
.network-overview strong:not(:last-child)::after { content: '·'; margin-left: 24px; color: #9aa8ba; }
.network-intro p { margin: 0; color: #505b6b; font-size: 14px; line-height: 1.55; }
.interactive-map { position: relative; overflow: hidden; aspect-ratio: 2/1; border: 1px solid #dfe8f3; border-radius: 12px; background: radial-gradient(circle at 50% 50%,#fff,#f4f8fd); box-shadow: 0 18px 48px rgba(35,78,130,.08); }
.interactive-map > img, .map-star-layer { position: absolute; inset: 0; width: 100%; height: 100%; }
.interactive-map > img { display: block; object-fit: contain; filter: brightness(.84) saturate(1.22); }
.map-star-layer { overflow: visible; }
.map-star { cursor: pointer; outline: none; }
.map-star circle { fill: transparent; }
.map-star polygon { fill: #0878ec; stroke: #fff; stroke-width: 1.4; vector-effect: non-scaling-stroke; transform-box: fill-box; transform-origin: center; transition: fill .16s ease,transform .16s ease; }
.map-star:hover polygon, .map-star:focus polygon, .map-star.active polygon { fill: #d6a539; transform: scale(1.65); }
.map-star:focus polygon { stroke: #644500; stroke-width: 2; }
.map-tooltip { position: absolute; z-index: 3; max-width: 220px; padding: 8px 11px; border-radius: 6px; opacity: 0; pointer-events: none; color: #fff; background: #071a35; box-shadow: 0 7px 22px rgba(5,24,48,.22); font-size: 12px; font-weight: 650; transform: translate(-50%,calc(-100% - 13px)); transition: opacity .14s ease; }
.map-tooltip.show { opacity: 1; }

.reference-heading { margin-bottom: 40px; text-align: center; }
.reference-heading h2 { margin-bottom: 0; font-size: 32px; }
.reference-heading .blue-rule { margin: 12px auto 0; }
.process-strip { display: grid; grid-template-columns: repeat(3,1fr); gap: 48px; }
.process-strip article { position: relative; display: grid; grid-template-columns: 72px 1fr; gap: 20px; align-items: center; }
.process-strip article:not(:last-child)::after { content: ''; position: absolute; top: 50%; right: -37px; width: 27px; border-top: 1px dashed #9da8b8; }
.step-circle { position: absolute; top: -4px; left: 0; width: 25px; height: 25px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: #0772dd; font-size: 12px; font-weight: 700; }
.process-icon { width: 72px; height: 72px; display: grid; place-items: center; border: 1.5px solid #87aee0; border-radius: 50%; color: #0674e5; font-size: 30px; }
.process-strip h3 { margin-bottom: 8px; font-size: 17px; }
.process-strip p { margin-bottom: 0; color: #555b63; font-size: 13px; line-height: 1.45; }

.services-band, .professionals-band { background: #fcfdff; }
.mobile-swipe-hint { display: none; }
.service-highlights { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.service-highlight { min-height: 220px; padding: 24px 15px 18px; border: 1px solid #dfe4eb; border-radius: 6px; text-align: center; background: #fff; }
.service-highlight > span { display: block; height: 50px; color: #006de2; font-size: 34px; line-height: 1; }
.service-highlight h3 { min-height: 44px; margin-bottom: 12px; font-size: 15px; line-height: 1.18; }
.service-highlight p { margin-bottom: 0; color: #5d626a; font-size: 11px; line-height: 1.45; }
.center-link { margin-top: 24px; text-align: center; }
.split-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 25px; }
.split-heading h2 { margin: 0; font-size: 30px; }

.home-experts.expert-grid { gap: 24px; }
.home-experts .expert-card { grid-template-columns: 100px minmax(0,1fr); min-width: 0; border: 1px solid #dfe4eb; border-radius: 6px; box-shadow: none; }
.home-experts .expert-photo { width: 100px; height: 100px; object-position: center; }
.home-experts .expert-body { min-width: 0; padding: 0; }
.home-experts .expert-meta { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 11px; }
.home-experts .expert-meta span:last-child { display: none; }
.home-experts .expert-card h3 { margin: 11px 0 5px; font-size: 16px; }
.home-experts .expert-expertise { min-height: 34px; display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: 11px; }
.home-experts .expert-facts { margin: 10px 0; font-size: 10px; }
.home-experts .expert-card .button { padding: 8px 10px; border: 1px solid #1780ec; color: #0872df; background: #fff; font-size: 11px; }

.founder-band { overflow: hidden; padding: 54px 0; background: #fff; }
.founder-reference-layout { display: grid; grid-template-columns: minmax(0,1fr) minmax(250px,300px); gap: 56px; align-items: center; }
.founder-reference-copy { padding: 18px 0; }
.founder-reference-copy h2 { margin-bottom: 13px; font-size: 31px; }
.founder-reference-copy p { max-width: 650px; margin-bottom: 14px; color: #444950; font-size: 15px; line-height: 1.6; }
.founder-reference-copy .text-link { display: inline-block; margin-top: 8px; }
.founder-media { overflow: hidden; border: 1px solid #dfe5ed; border-radius: 10px; background: #fff; box-shadow: 0 18px 45px rgba(22,48,83,.11); }
.founder-video-shell { position: relative; }
.founder-media video { width: 100%; aspect-ratio: 9/16; display: block; object-fit: contain; background: #e9eff7; }
.founder-video-play { position: absolute; right: 16px; bottom: 16px; width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.72); border-radius: 50%; color: #fff; background: rgba(0,56,128,.82); box-shadow: 0 8px 24px rgba(0,0,0,.2); cursor: pointer; }
.founder-video-play:hover, .founder-video-play:focus-visible { background: #006fe6; transform: scale(1.04); }
.founder-video-play[hidden] { display: none; }
.founder-media .founder-identity { padding: 15px 18px 17px; }
.founder-identity strong, .founder-identity span { display: block; }
.founder-identity strong { font-size: 17px; }
.founder-identity span { margin-top: 4px; color: #5e6268; font-size: 11px; }
.reference-cta { color: #fff; background: linear-gradient(90deg,#0786f7,#0062d7); }
.reference-cta .reference-container { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.reference-cta h2 { margin-bottom: 4px; font-size: 23px; }
.reference-cta p { margin-bottom: 0; font-size: 13px; }

.page-hero { padding: 52px 20px 42px; background: #f8faff; }
.page-hero h1 { max-width: 980px; margin: 0 auto; color: #1d1d1f; font-size: clamp(34px,4vw,48px); line-height: 1.08; letter-spacing: -.04em; }
body[data-page="services"] .service-card:first-child { background: #fbfcfe; }
.section { padding: 80px 0; }
.section-title { font-size: clamp(40px,4.5vw,60px); }
.step-card, .service-card, .info-card, .form-card, .value-card, .article-card, .expert-card, .filters, .founder-panel { border: 1px solid var(--component-border); border-radius: var(--component-radius); box-shadow: none; }
.service-card, .form-card { padding: 32px; }
.featured-story, .map-card { border-radius: var(--component-radius); }
.site-footer { padding: 28px 0 18px; background: #f7f8fa; }
.footer-grid { grid-template-columns: 1.5fr repeat(3,1fr); gap: 45px; padding-bottom: 24px; }
.footer-bottom { padding-top: 15px; }
dialog { max-width: 620px; border: 0; border-radius: 10px; padding: 0; box-shadow: 0 30px 100px rgba(0,0,0,.25); }
dialog [data-modal-content] { padding: 34px; }

@media (min-width: 761px) and (max-width: 980px) {
  .nav-links { position: static; display: flex; padding: 0; background: transparent; box-shadow: none; }
  .menu-button { display: none; }
  .nav-cta { display: block; }
}

@media (max-width: 980px) {
  .nav-inner, .container, .reference-container { width: min(100% - 38px, 1160px); }
  .nav-inner { gap: 18px; }.nav-links { gap: 20px; }.nav-cta { padding: 10px 15px; }
  .reference-hero-inner { width: min(100% - 54px, 1160px); }
  .service-highlights { grid-template-columns: repeat(2,1fr); }
  .home-experts .expert-card { grid-template-columns: 100px minmax(0,1fr); }
  .founder-reference-layout { gap: 42px; }
  body[data-page="about"] .founder-focus-line { display: block; }
  body[data-page="about"] .founder-focus-separator { display: none; }
}

@media (max-width: 760px) {
  .page-hero { padding: 42px 18px 32px; }
  .page-hero h1 { font-size: 34px; }
  .reference-hero-inner { padding-left: 0; }
  html[lang="zh-CN"] body[data-page="about"] .intro-grid h2 { font-size: 40px; }
  .site-nav { height: 58px; }.nav-inner { width: calc(100% - 28px); }.brand { font-size: 17px; }
  .reference-hero { min-height: 500px; }
  .reference-hero-inner { width: calc(100% - 38px); }
  .reference-hero h1 { width: auto; font-size: 34px; line-height: 1.08; white-space: normal; }
  .reference-hero h1 .hero-line { display: block; }
  .reference-hero h1 .hero-comma { display: none; }
  .reference-hero p { font-size: 15px; }.hero-actions { flex-direction: column; align-items: stretch; max-width: 250px; }
  .reference-section { padding: 52px 0; }
  .network-intro h2 { font-size: 30px; }
  .network-overview { flex-direction: column; align-items: center; gap: 6px; }.network-overview strong:not(:last-child)::after { display: none; }
  .interactive-map { margin-inline: -7px; border-radius: 8px; }
  .interactive-map > img { opacity: 1; filter: brightness(.78) contrast(1.12) saturate(1.3); }
  .map-star polygon { fill: #0064cc; transform: scale(1.45); }
  .map-star:hover polygon, .map-star:focus polygon, .map-star.active polygon { transform: scale(2); }
  .map-tooltip { max-width: 175px; font-size: 10px; }
  .process-strip { grid-template-columns: 1fr; gap: 30px; }.process-strip article:not(:last-child)::after { display: none; }
  .mobile-swipe-hint { display: block; margin: -4px 0 14px; color: #4374a8; font-size: 12px; font-weight: 650; text-align: right; }
  .service-highlights { display: flex; gap: 12px; overflow-x: auto; overscroll-behavior-inline: contain; scroll-padding-inline: 1px; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 1px 13% 12px 1px; }.service-highlights::-webkit-scrollbar { display: none; }.service-highlight { min-width: 88%; scroll-snap-align: start; scroll-snap-stop: always; }
  .home-experts.expert-grid { display: flex; gap: 12px; overflow-x: auto; overscroll-behavior-inline: contain; scroll-padding-inline: 1px; scroll-snap-type: x mandatory; scrollbar-width: none; padding-right: 10%; -webkit-mask-image: none; mask-image: none; }.home-experts.expert-grid::-webkit-scrollbar { display: none; }.home-experts .expert-card { min-width: 90%; grid-template-columns: 100px minmax(0,1fr); scroll-snap-align: start; scroll-snap-stop: always; }
  .split-heading { align-items: flex-end; }.split-heading h2 { font-size: 27px; }
  .founder-band { padding: 46px 0; }.founder-reference-layout { grid-template-columns: 1fr; gap: 24px; }.founder-media { width: min(100%,300px); }
  .directory-grid .expert-card { grid-template-columns: 84px minmax(0,1fr); }
  .directory-grid .expert-photo { width: 84px; height: 84px; }
  dialog[data-expert-modal] { width: calc(100% - 20px); max-height: 92vh; border-radius: 22px !important; }
  dialog[data-expert-modal] [data-modal-content] { max-height: 92vh; padding: 24px 20px 28px !important; }
  .expert-modal-close { top: 14px; right: 14px; }
  .expert-modal-head { gap: 14px; padding-right: 38px; }
  .expert-modal-head img { width: 82px; height: 82px; }
  .expert-modal-head h2 { font-size: 27px; }
  .expert-modal-facts { padding: 18px; gap: 16px; }
  .expert-modal-section { margin-top: 24px; padding-top: 22px; }
  body[data-page="about"] #company-introduction { padding-bottom: 34px; }
  body[data-page="about"] #founder { padding-top: 20px; padding-bottom: 36px; }
  body[data-page="about"] .cta { padding: 58px 20px; }
  .application-panel { gap: 22px; }
  .application-toggle { width: 100%; min-height: 50px; display: flex; align-items: center; justify-content: space-between; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; color: var(--blue); background: #f4f8ff; font: inherit; font-weight: 700; cursor: pointer; }
  .application-toggle::after { content: '+'; font-size: 22px; font-weight: 400; line-height: 1; }
  .application-toggle[aria-expanded="true"]::after { content: '−'; }
  .application-toggle[aria-expanded="false"] + .form-card { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 0; }
  .footer-contact { align-items: flex-start; flex-wrap: wrap; }
  .footer-group { border-top: 1px solid var(--line); }
  .footer-group summary { display: flex; align-items: center; min-height: 46px; }
  .footer-group summary::after { display: inline; }
  .footer-group-links { padding: 0 0 12px; }
  .legal-nav { top: 66px; flex-wrap: nowrap; overflow-x: auto; margin-inline: -5px; padding: 8px; scrollbar-width: none; }
  .legal-nav::-webkit-scrollbar { display: none; }
  .back-to-top { right: 16px; bottom: 16px; }
}