@font-face {
  font-display: swap;
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  src: url("inter-latin-variable.woff2") format("woff2");
}

:root {
  --navy: #00152b;
  --navy-2: #06364b;
  --slate: #3e596d;
  --paper: #fafaf7;
  --paper-2: #f1efe9;
  --line: rgba(0, 21, 43, 0.12);
  --line-dark: rgba(255, 255, 255, 0.15);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: var(--paper);
  color: var(--navy);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
html[lang="zh-Hans"] body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Inter, system-ui, sans-serif;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.wrap { margin: 0 auto; max-width: 1180px; padding: 0 32px; }
section { padding: 96px 0; }

.skip-link {
  background: #fff;
  left: 16px;
  padding: 8px 12px;
  position: fixed;
  top: -60px;
  z-index: 100;
}
.skip-link:focus { top: 12px; }

.nav {
  background: rgba(0, 21, 43, 0.94);
  border-bottom: 1px solid var(--line-dark);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.nav-inner { align-items: center; display: flex; height: 70px; justify-content: space-between; }
.brand { align-items: center; color: #fff; display: flex; font-size: 12.5px; font-weight: 600; gap: 12px; letter-spacing: 0.14em; padding: 7px 0; text-transform: uppercase; white-space: nowrap; }
.brand img { filter: brightness(0) invert(1); height: 31px; width: 27px; }
.nav-links { align-items: center; display: flex; font-size: 13.5px; gap: 25px; }
.nav-links a { color: rgba(255, 255, 255, 0.78); }
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a[aria-current="page"] { color: #fff; }
.language { border-left: 1px solid var(--line-dark); padding-left: 25px; }
.nav-cta { border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 999px; padding: 8px 14px; }
.nav-cta:hover, .nav-cta:focus-visible { background: #fff; color: var(--navy) !important; }
.menu-button { background: transparent; border: 0; color: #fff; cursor: pointer; display: none; padding: 8px; }
.menu-button svg { display: block; height: 24px; width: 24px; }

.hero { background: var(--navy); color: #fff; overflow: hidden; padding: 128px 0 112px; position: relative; }
.hero::after {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.055), transparent 62%);
  border-radius: 50%;
  bottom: -46%;
  content: "";
  height: 680px;
  pointer-events: none;
  position: absolute;
  right: -10%;
  width: 680px;
}
.hero h1 { font-size: clamp(36px, 5.2vw, 66px); font-weight: 300; letter-spacing: -0.025em; line-height: 1.08; max-width: 1030px; }
.hero-emphasis { font-weight: 600; }
.hero .sub { color: rgba(255, 255, 255, 0.74); font-size: clamp(16px, 1.5vw, 19px); line-height: 1.65; margin-top: 30px; max-width: 860px; }
.hero .sub + .sub { margin-top: 17px; }
.meta { display: flex; flex-wrap: wrap; font-size: 12.5px; gap: 30px 56px; letter-spacing: 0.16em; margin-top: 52px; text-transform: uppercase; }
.meta div { color: rgba(255, 255, 255, 0.5); }
.meta b { color: rgba(255, 255, 255, 0.85); font-weight: 500; }

.eyebrow { color: var(--slate); font-size: 11.5px; font-weight: 600; letter-spacing: 0.24em; text-transform: uppercase; }
.h2 { font-size: clamp(29px, 3.4vw, 44px); font-weight: 400; letter-spacing: -0.018em; line-height: 1.16; margin-top: 14px; max-width: 820px; }
.h2 b { font-weight: 600; }
.lede { color: var(--slate); font-size: 17px; line-height: 1.7; margin-top: 20px; max-width: 760px; }

#founders { background: var(--navy); color: #fff; }
#founders .eyebrow { color: rgba(255, 255, 255, 0.55); }
#founders .lede, #founders .bio p { color: rgba(255, 255, 255, 0.7); }
#founders .founders-photo { border-color: var(--line-dark); }
#founders .bio .role { color: rgba(255, 255, 255, 0.55); }
#founders .bio h3 a, #founders .email { border-color: var(--line-dark); }
#founders .email { color: rgba(255, 255, 255, 0.85); }
.founders-photo { aspect-ratio: 1290 / 1333; border: 1px solid var(--line); border-radius: 4px; margin-top: 48px; overflow: hidden; position: relative; }
.founders-photo img { height: auto; left: 50%; max-width: none; position: absolute; top: 0; transform: translateX(-48.5%); width: 155%; }
.bios-grid { display: grid; gap: 64px; grid-template-columns: 1fr 1fr; margin-top: 56px; }
.bio { display: flex; flex-direction: column; }
.bio h3 { font-size: 24px; letter-spacing: -0.01em; }
.bio h3 a { border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.bio .role { color: var(--slate); font-size: 12.5px; font-weight: 600; letter-spacing: 0.18em; margin-top: 6px; text-transform: uppercase; }
.bio p { color: var(--slate); font-size: 15px; line-height: 1.72; margin-top: 21px; }
.bio p:last-of-type { margin-top: auto; padding-top: 21px; }
.email { border-bottom: 1px solid var(--line); color: var(--navy-2); display: inline-block; font-size: 14px; font-weight: 500; margin-top: 22px; padding-bottom: 2px; }

.services { background: var(--paper); border-top: 1px solid var(--line); color: var(--navy); }
.services .eyebrow { color: var(--slate); }
.services .lede { color: var(--slate); }
.services-grid { background: var(--line); border: 1px solid var(--line); display: grid; gap: 1px; grid-template-columns: repeat(2, 1fr); margin-top: 56px; }
.svc { background: var(--paper-2); min-height: 235px; padding: 36px 32px; }
.svc .num { color: var(--slate); font-size: 11.5px; font-weight: 600; letter-spacing: 0.24em; }
.svc h3 { font-size: 21px; line-height: 1.3; margin-top: 14px; }
.svc h3 a { border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.svc h3 a:hover, .svc h3 a:focus-visible { border-color: var(--navy-2); }
.svc p { color: var(--slate); font-size: 15px; line-height: 1.68; margin-top: 14px; }
.svc p + p { margin-top: 12px; }
.svc-link { align-items: center; border-bottom: 1px solid var(--line); color: var(--navy-2); display: inline-flex; font-size: 13.5px; font-weight: 600; gap: 8px; margin-top: 20px; padding-bottom: 3px; }
.svc-link:hover, .svc-link:focus-visible { border-color: var(--navy-2); }
.icon-arrow { display: inline-block; height: 8px; position: relative; width: 17px; }
.icon-arrow::before { background: currentColor; content: ""; height: 1px; left: 0; position: absolute; top: 4px; width: 16px; }
.icon-arrow::after { border-right: 1px solid currentColor; border-top: 1px solid currentColor; content: ""; height: 6px; position: absolute; right: 0; top: 1px; transform: rotate(45deg); width: 6px; }

.situations { background: var(--paper-2); }
.situation-intro { color: var(--slate); font-size: 17px; font-weight: 600; margin-top: 38px; }
.situation-groups { border-top: 1px solid var(--line); margin-top: 20px; max-width: 960px; }
.situation-group { border-bottom: 1px solid var(--line); display: grid; gap: 48px; grid-template-columns: 230px 1fr; padding: 26px 0; }
.situation-group h3 { font-size: 16px; line-height: 1.45; }
.situation-body p, .situation-body li { color: var(--slate); font-size: 15px; line-height: 1.72; }
.situation-body ul { list-style: none; margin-top: 13px; }
.situation-body li { padding-left: 20px; position: relative; }
.situation-body li + li { margin-top: 9px; }
.situation-body li::before { background: var(--navy-2); border-radius: 50%; content: ""; height: 5px; left: 1px; position: absolute; top: 10px; width: 5px; }
.situation-note { color: var(--slate); font-size: 16px; line-height: 1.75; margin-top: 28px; max-width: 760px; }

.work { background: var(--navy); color: #fff; }
.work .eyebrow { color: rgba(255, 255, 255, 0.55); }
.work .lede { color: rgba(255, 255, 255, 0.7); }
.case { padding: 0; }
.case-tag { color: rgba(255, 255, 255, 0.52); font-size: 10.5px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; }
.case h3, .case h4 { font-size: 19px; line-height: 1.35; margin-top: 8px; }
.case p { color: rgba(255, 255, 255, 0.7); font-size: 14.5px; line-height: 1.68; margin-top: 12px; }
.case ul { color: rgba(255, 255, 255, 0.7); font-size: 14.5px; line-height: 1.68; margin: 12px 0 0 19px; }
.case li + li { margin-top: 9px; }
.commodity-strip { border-bottom: 1px solid var(--line-dark); border-top: 1px solid var(--line-dark); color: rgba(255, 255, 255, 0.66); font-size: 12px; letter-spacing: 0.08em; line-height: 2; margin-top: 32px; padding: 18px 0; text-transform: uppercase; }
.experience-groups { margin-top: 42px; }
.experience-group { border-top: 1px solid var(--line-dark); display: grid; gap: 48px; grid-template-columns: 280px 1fr; padding: 46px 0; }
.experience-group:last-child { border-bottom: 1px solid var(--line-dark); }
.experience-group > h3 { align-self: start; font-size: 18px; line-height: 1.4; }
.experience-heading { align-items: flex-start; background: transparent; border: 0; color: #fff; cursor: pointer; display: flex; font: inherit; font-weight: 600; gap: 14px; justify-content: space-between; padding: 0; text-align: left; width: 100%; }
.experience-heading span { color: rgba(255,255,255,.55); font-size: 22px; font-weight: 400; line-height: 1; }
.group-cases { display: flex; flex-direction: column; gap: 32px; }
.group-cases[hidden] { display: none; }

.how { background: var(--paper); }
.how-grid { display: grid; gap: 48px; grid-template-columns: repeat(3, 1fr); margin-top: 48px; }
.how-item h3 { font-size: 17px; }
.how-item p { color: var(--slate); font-size: 15px; line-height: 1.68; margin-top: 10px; }

.contact { background: var(--navy); color: #fff; padding: 112px 0; }
.contact .eyebrow { color: rgba(255, 255, 255, 0.55); }
.contact .h2 { font-weight: 300; }
.contact-promise { color: rgba(255, 255, 255, 0.7); font-size: 17px; line-height: 1.7; margin-top: 20px; }
.contact-emails { display: grid; gap: 48px; grid-template-columns: 1fr 1fr; margin-top: 44px; max-width: 830px; }
.contact-email .name { color: rgba(255, 255, 255, 0.55); font-size: 11.5px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; }
.contact-email .addr { border-bottom: 1px solid rgba(255, 255, 255, 0.3); display: inline-block; font-size: clamp(17px, 1.9vw, 22px); font-weight: 500; margin-top: 12px; overflow-wrap: anywhere; padding-bottom: 6px; }
.contact .where { color: rgba(255, 255, 255, 0.55); font-size: 13px; letter-spacing: 0.18em; margin-top: 34px; text-transform: uppercase; }
.contact .where a { border-bottom: 1px solid rgba(255,255,255,.35); padding-bottom: 2px; }
.linkedin-link { align-items: center; display: inline-flex; margin-left: 3px; vertical-align: middle; }
.linkedin-link svg { height: 17px; width: 17px; }

footer { background: var(--navy); border-top: 1px solid rgba(255,255,255,.22); color: rgba(255, 255, 255, 0.5); display: block; font-size: 12.5px; padding: 32px 0; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }

.page-hero { background: var(--navy); color: #fff; padding: 104px 0 84px; }
.page-hero .eyebrow { color: rgba(255, 255, 255, 0.55); }
.page-hero .h2 { max-width: 900px; }
.page-hero .lede { color: rgba(255, 255, 255, 0.72); }
.page-hero .not-found-zh { font-size: 15px; margin-top: 12px; }
.page-hero .not-found-zh a { border-bottom: 1px solid rgba(255, 255, 255, 0.45); color: #fff; }
.page-hero .not-found-zh a:hover, .page-hero .not-found-zh a:focus-visible { border-color: #fff; }
.disputes-hero .lede + .lede { margin-top: 12px; }
.detail-section { background: var(--paper); }
.detail-section.detail-dark { background: var(--navy); color: #fff; }
.detail-dark .eyebrow { color: rgba(255, 255, 255, 0.55); }
.detail-dark .lede { color: rgba(255, 255, 255, 0.7); }
.detail-columns { display: grid; gap: 64px; grid-template-columns: repeat(2, 1fr); margin-top: 52px; }
.detail-card { border-top: 1px solid var(--line); padding-top: 28px; }
.detail-card .num { color: var(--slate); font-size: 11.5px; font-weight: 600; letter-spacing: 0.24em; }
.detail-card h3 { font-size: 21px; line-height: 1.35; margin-top: 12px; }
.detail-card p { color: var(--slate); font-size: 15px; line-height: 1.72; margin-top: 14px; }
.detail-columns.compact { margin-top: 44px; }
.issue-grid { border-left: 1px solid var(--line-dark); border-top: 1px solid var(--line-dark); display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 50px; }
.issue { border-bottom: 1px solid var(--line-dark); border-right: 1px solid var(--line-dark); padding: 28px 30px 30px; }
.issue-wide { grid-column: 1 / -1; }
.issue h3 { font-size: 17px; line-height: 1.4; }
.issue p { color: rgba(255, 255, 255, 0.7); font-size: 14.5px; line-height: 1.68; margin-top: 10px; }
.market-section { background: var(--paper-2); }
.prose-grid { display: grid; gap: 64px; grid-template-columns: repeat(2, 1fr); margin-top: 44px; }
.prose-grid p { color: var(--slate); font-size: 15.5px; line-height: 1.78; }
.prose-grid p + p { margin-top: 18px; }
.detail-cases { display: grid; gap: 42px; grid-template-columns: repeat(3, 1fr); margin-top: 48px; }
.back-link { border-bottom: 1px solid var(--line); color: var(--navy-2); display: inline-flex; font-size: 14px; font-weight: 600; gap: 8px; margin-top: 34px; padding-bottom: 3px; }
.back-link:hover, .back-link:focus-visible { border-color: var(--navy-2); }
.selected-disputes .case { border-top: 1px solid var(--line-dark); padding-top: 26px; }
.disputes-hero + .detail-section { background: var(--paper); }
.disputes-hero ~ .contact .contact-promise { max-width: 900px; }
.experience-section { border-bottom: 1px solid var(--line); }
.experience-cluster { display: grid; gap: 56px; grid-template-columns: 260px 1fr; }
.experience-cluster h2 { font-size: 20px; line-height: 1.35; }
.experience-items { display: grid; gap: 38px; }
.experience-item .case-tag { color: var(--slate); }
.experience-item h3 { font-size: 18px; margin-top: 7px; }
.experience-item p, .experience-item li { color: var(--slate); font-size: 14.5px; line-height: 1.7; }
.experience-item p { margin-top: 10px; }
.experience-item ul { margin: 10px 0 0 18px; }

:focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-links.open { align-items: flex-start; background: var(--navy); display: flex; flex-direction: column; gap: 0; left: 0; padding: 20px 32px 34px; position: absolute; right: 0; top: 70px; }
  .nav-links.open a { border-bottom: 1px solid var(--line-dark); padding: 16px 0; width: 100%; }
  .nav-links.open .language { border-left: 0; padding-left: 0; }
  .nav-links.open .nav-cta { border: 0; border-bottom: 1px solid var(--line-dark); border-radius: 0; }
  .menu-button { display: block; }
  .bios-grid, .how-grid, .experience-cluster, .experience-group, .detail-columns, .prose-grid, .situation-group { grid-template-columns: 1fr; }
  .bios-grid { gap: 48px; }
  .how-grid { gap: 34px; }
  .experience-cluster { gap: 34px; }
  .experience-group { gap: 24px; }
  .situation-group { gap: 10px; }
  .detail-columns, .prose-grid { gap: 36px; }
  .detail-cases { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .wrap { padding: 0 22px; }
  section { padding: 66px 0; }
  .hero { padding: 90px 0 78px; }
  .hero h1 { font-size: 38px; }
  .meta { display: grid; gap: 20px; }
  .brand { font-size: 11px; gap: 9px; letter-spacing: 0.1em; }
  .brand img { height: 29px; width: 25px; }
  .services-grid, .contact-emails { grid-template-columns: 1fr; }
  .issue-grid { grid-template-columns: 1fr; }
  .issue-wide { grid-column: auto; }
  .svc { min-height: 0; padding: 30px 26px; }
  .contact { padding: 80px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}