:root {
  --ink: #12262c;
  --muted: #52666b;
  --paper: #f6f7f2;
  --white: #ffffff;
  --line: #d9dfd9;
  --accent: #0e8c7f;
  --accent-dark: #08685f;
  --warm: #e7b66e;
  --dark: #102e32;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 20; padding: .6rem 1rem; background: var(--white); }

.site-header {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 44px; height: 44px;
  background: var(--ink); color: var(--white); border-radius: 50%;
  font-size: 11px; font-weight: 800; letter-spacing: .08em;
}
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: 17px; letter-spacing: .02em; }
.brand-copy small { color: var(--muted); margin-top: 4px; }
nav { display: flex; align-items: center; gap: 28px; }
nav a { text-decoration: none; font-size: 14px; font-weight: 650; }
nav a:hover { color: var(--accent); }
.nav-contact { border: 1px solid var(--ink); border-radius: 999px; padding: 9px 17px; }

.hero {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  min-height: 720px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 70px;
  align-items: center;
  padding: 86px 0;
}
.eyebrow { color: var(--accent-dark); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 22px 0 24px; font-size: clamp(54px, 6vw, 88px); line-height: .98; letter-spacing: -.055em; }
h1 span { color: var(--accent); }
.hero-lead { max-width: 640px; margin: 0; font-size: 20px; color: #344c52; }
.hero-cn { max-width: 620px; margin: 15px 0 0; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 13px 20px; border-radius: 7px; text-decoration: none; font-weight: 750; font-size: 14px; }
.primary { background: var(--ink); color: var(--white); }
.primary:hover { background: var(--accent-dark); }
.secondary { border: 1px solid #b9c4c0; background: rgba(255,255,255,.6); }

.hero-panel { position: relative; min-height: 500px; border-radius: 32px; overflow: hidden; background: var(--dark); color: var(--white); box-shadow: 0 25px 70px rgba(22,55,59,.16); }
.hero-panel::before { content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%; right: -90px; top: -80px; background: rgba(231,182,110,.9); }
.hero-panel::after { content: ""; position: absolute; inset: auto 0 0 0; height: 42%; background: linear-gradient(180deg, transparent, rgba(2,16,18,.42)); }
.orbit { position: absolute; border: 1px solid rgba(255,255,255,.21); border-radius: 50%; }
.orbit-one { width: 350px; height: 350px; right: -12px; top: 45px; }
.orbit-two { width: 210px; height: 210px; left: 58px; bottom: 28px; }
.panel-card { position: absolute; z-index: 2; top: 52px; left: 44px; right: 44px; padding: 28px; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.08); backdrop-filter: blur(10px); border-radius: 18px; }
.panel-card span { color: #b9d4d0; text-transform: uppercase; letter-spacing: .14em; font-size: 10px; }
.panel-card strong { display: block; font-size: 23px; line-height: 1.25; margin: 14px 0 9px; }
.panel-card em { color: #d5e3e0; font-style: normal; }
.metric-card { position: absolute; z-index: 2; display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 12px; background: var(--white); color: var(--ink); box-shadow: 0 13px 30px rgba(0,0,0,.14); }
.metric-card b { color: var(--accent); font-size: 18px; }
.metric-card span { font-size: 11px; line-height: 1.25; font-weight: 750; text-transform: uppercase; letter-spacing: .06em; }
.metric-a { left: 34px; bottom: 55px; }
.metric-b { left: 190px; bottom: 96px; }
.metric-c { right: 25px; bottom: 42px; }

.identity-strip { display: grid; grid-template-columns: 1.5fr .8fr .8fr; width: 100%; padding: 30px max(24px, calc((100% - 1180px)/2)); background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.identity-strip div { padding: 0 28px; border-right: 1px solid var(--line); }
.identity-strip div:first-child { padding-left: 0; }
.identity-strip div:last-child { border: 0; }
.identity-strip span { display: block; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 7px; }
.identity-strip strong { font-size: 14px; }

.section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 120px 0; }
.two-column { display: grid; grid-template-columns: .75fr 1.25fr; gap: 110px; }
.section-label { color: var(--accent-dark); font-size: 11px; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.section h2 { margin: 16px 0 28px; max-width: 820px; font-size: clamp(34px, 4vw, 56px); line-height: 1.08; letter-spacing: -.035em; }
.section-content p { font-size: 18px; color: #40565b; }
.section-content p[lang] { font-size: 16px; color: var(--muted); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 52px; }
.section-heading h2 { max-width: 720px; margin: 0; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capability-grid article { min-height: 360px; padding: 38px 34px 32px; border-right: 1px solid var(--line); }
.capability-grid article:last-child { border-right: 0; }
.number { display: inline-grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; color: var(--accent-dark); font-weight: 850; }
.capability-grid h3 { margin: 70px 0 18px; font-size: 25px; }
.capability-grid p { color: var(--muted); font-size: 15px; }
.capability-grid p[lang] { padding-top: 12px; border-top: 1px dashed var(--line); }

.data-section { width: 100%; padding: 110px max(24px, calc((100% - 1180px)/2)); background: var(--dark); color: var(--white); display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; }
.section-label.light { color: #72c9c0; }
.data-intro h2 { margin-top: 18px; }
.data-intro p { color: #bad0cd; font-size: 18px; }
.principles { border-top: 1px solid rgba(255,255,255,.18); }
.principles > div { display: grid; grid-template-columns: 45px 1fr; gap: 18px; padding: 23px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.principles span { color: var(--warm); font-weight: 850; }
.principles p { margin: 0; color: #d8e4e2; }
.principles strong { color: var(--white); }
.data-cn { grid-column: 1/-1; margin: 18px 0 0; padding: 22px 26px; border-left: 3px solid var(--warm); background: rgba(255,255,255,.06); color: #d8e4e2; }

.effective { color: var(--muted); }
.policy h3 { margin: 0 0 8px; font-size: 18px; }
.policy p { margin: 0 0 28px; color: var(--muted); }
.policy a { color: var(--accent-dark); font-weight: 700; }
details { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 750; }
details div { padding-top: 20px; }

.contact-section { padding: 76px max(24px, calc((100% - 1180px)/2)); background: var(--warm); display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-section h2 { margin: 7px 0; font-size: clamp(35px, 5vw, 60px); line-height: 1; letter-spacing: -.04em; }
.contact-section p { margin: 0; }
.contact-section > a { font-size: clamp(18px, 2vw, 27px); font-weight: 800; text-decoration: none; border-bottom: 2px solid var(--ink); }

footer { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 42px 0 55px; display: flex; justify-content: space-between; gap: 30px; color: var(--muted); font-size: 13px; }
footer div { display: grid; gap: 5px; }
footer div:last-child { text-align: right; }
footer strong { color: var(--ink); }

@media (max-width: 900px) {
  nav a:not(.nav-contact) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 65px 0; }
  .hero-panel { min-height: 440px; }
  .identity-strip { grid-template-columns: 1fr; gap: 20px; }
  .identity-strip div { padding: 0 0 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .two-column, .data-section { grid-template-columns: 1fr; gap: 45px; }
  .section { padding: 85px 0; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .capability-grid h3 { margin-top: 35px; }
  .contact-section, footer { align-items: flex-start; flex-direction: column; }
  footer div:last-child { text-align: left; }
}

@media (max-width: 560px) {
  .site-header, .hero, .section, footer { width: min(100% - 30px, 1180px); }
  .site-header { min-height: 72px; }
  .brand-copy small { display: none; }
  .nav-contact { padding: 8px 13px; }
  h1 { font-size: 52px; }
  .hero { gap: 42px; padding-top: 50px; }
  .hero-lead { font-size: 18px; }
  .hero-panel { min-height: 470px; border-radius: 22px; }
  .panel-card { left: 22px; right: 22px; top: 28px; padding: 22px; }
  .panel-card strong { font-size: 19px; }
  .metric-a { left: 20px; bottom: 118px; }
  .metric-b { left: 52px; bottom: 49px; }
  .metric-c { right: 16px; bottom: 15px; }
  .section-heading { display: block; }
  .section-heading h2 { margin-top: 17px; }
  .contact-section { padding-top: 60px; padding-bottom: 60px; }
}