:root {
  color-scheme: light;
  --ink: #17282d;
  --deep: #102932;
  --muted: #4c6167;
  --paper: #f7f8f6;
  --field: #eaf3f4;
  --accent: #009fb6;
  --hero-muted: #cedbd9;
  font-family: "Instrument Sans", "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
h1, h2, p, dl, dd { margin: 0; }
a { color: inherit; }
a:focus-visible { outline: 3px solid #008477; outline-offset: 5px; }
.frame { width: min(100% - 2 * clamp(20px, 5.3vw, 84px), 1376px); margin-inline: auto; }
.skip { position: absolute; z-index: 3; inset: 8px auto auto 8px; background: white; padding: 12px; transform: translateY(-150%); }
.skip:focus { transform: translateY(0); }
.masthead { background: #fff; }
.header-inner { min-height: 80px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; }
.brand, .header-inner a { text-decoration: none; }
.brand { display: inline-flex; width: fit-content; align-items: center; }
.brand img { display: block; width: clamp(136px, 15vw, 198px); height: auto; }
nav { display: flex; align-items: center; gap: clamp(20px, 3.4vw, 54px); font-size: 15px; font-weight: 600; }
nav a, .language { padding-block: 10px; }
nav a:hover, .language:hover, .contact-details a:hover { text-decoration: underline; text-underline-offset: 5px; }
.language { justify-self: end; font-size: 15px; font-weight: 650; }
.hero { position: relative; isolation: isolate; background: var(--deep); color: #fff; overflow: hidden; }
.hero-inner { min-height: clamp(510px, 45vw, 660px); display: flex; align-items: center; padding-block: 68px; }
.hero-copy { width: 52%; position: relative; z-index: 1; }
.hero h1 { font-size: clamp(44px, 6.25vw, 95px); line-height: 1.07; font-weight: 720; letter-spacing: -.064em; }
.hero h1 span { display: block; }
:lang(zh-CN) .hero h1 { letter-spacing: -.035em; }
html[lang="en"] .hero h1 { font-size: clamp(32px, 4.8vw, 76px); }
.hero p { color: var(--hero-muted); margin-top: 26px; max-width: 34ch; font-size: clamp(16px, 1.4vw, 20px); line-height: 1.65; }
.button { display: inline-flex; align-items: center; gap: 30px; margin-top: 34px; padding: 14px 19px; min-height: 50px; background: var(--accent); color: #071c22; text-decoration: none; font-weight: 700; transition: background-color .18s, transform .18s; }
.button:hover { background: #35bad0; transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.hero-photo { position: absolute; inset: 0 0 0 43%; clip-path: polygon(17% 0, 100% 0, 100% 100%, 0 100%); background: #47616a; }
.hero-photo img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: 48% center; animation: arrive 900ms ease-out both; }
@keyframes arrive { from { opacity: .68; transform: scale(1.035); } to { opacity: 1; transform: scale(1); } }
.section { padding-block: clamp(56px, 7.7vw, 120px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.56fr); gap: 28px clamp(32px, 7vw, 120px); align-items: start; }
h2 { font-size: clamp(31px, 4vw, 56px); line-height: 1.12; letter-spacing: -.055em; font-weight: 720; }
:lang(zh-CN) h2 { letter-spacing: -.035em; }
.section p, dd { font-size: clamp(16px, 1.55vw, 21px); line-height: 1.75; }
.about p { max-width: 57ch; }
.business-field { background: var(--field); }
.business dl { display: grid; gap: 27px; }
.business dl > div { position: relative; padding-inline-start: 25px; }
.business dl > div::before { content: ""; position: absolute; inset: .55em auto auto 0; width: 13px; height: 15px; background: #007689; clip-path: polygon(55% 0,100% 0,45% 100%,0 100%); }
dt { font-size: clamp(20px, 2.1vw, 29px); font-weight: 700; letter-spacing: -.025em; margin-bottom: 4px; }
dd, .contact p { color: var(--muted); }
.contact h2 + p { margin-top: 13px; }
.contact-details { align-self: center; }
.mail { font-size: clamp(24px, 3.35vw, 46px); letter-spacing: -.04em; font-weight: 700; text-decoration: none; overflow-wrap: anywhere; }
.mail span { color: #007689; }
.contact-details p { display: flex; flex-wrap: wrap; gap: 5px 25px; margin-top: 12px; }
.contact-details p a { text-decoration: none; }
footer { background: var(--deep); color: var(--hero-muted); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px 28px; padding-block: 32px; font-size: 14px; }
.footer-brand { width: 150px; height: auto; }
.footer-inner a { text-underline-offset: 3px; }
@media (max-width: 800px) {
  .hero-inner { min-height: 470px; }
  .hero-copy { width: 57%; }
  .hero-photo { left: 46%; }
}
@media (max-width: 620px) {
  .header-inner { grid-template-columns: 1fr auto; gap: 0 16px; padding-block: 12px 8px; }
  .language { grid-column: 2; grid-row: 1; }
  nav { grid-column: 1 / -1; gap: 21px; flex-wrap: wrap; }
  nav a { padding-block: 9px; }
  .hero-inner { min-height: 0; padding-block: 39px 34px; }
  .hero-copy { width: 100%; }
  .hero p { margin-top: 17px; }
  .button { margin-top: 22px; }
  .hero { display: flex; flex-direction: column; }
  .hero-photo { position: relative; inset: auto; order: 2; height: clamp(170px, 56vw, 310px); clip-path: polygon(9% 0,100% 0,100% 100%,0 100%); }
  .section { grid-template-columns: 1fr; gap: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}