:root {
  color-scheme: light;
  --ink: #10283d;
  --ink-deep: #0a1d2e;
  --muted: #617589;
  --line: #dce6ed;
  --blue: #087e9b;
  --blue-soft: #eaf6f8;
  --paper: #fff;
  --canvas: #f7fafb;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; border-radius: 2px; }
p, h1, h2, h3 { margin-top: 0; }
.shell { width: min(1180px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 100; left: 16px; top: -80px; padding: 10px 16px; background: var(--ink); color: #fff; }
.skip-link:focus { top: 12px; }

.site-header { position: relative; z-index: 10; background: rgba(255,255,255,.96); border-bottom: 1px solid #e9eff2; }
.header-inner { min-height: 84px; display: flex; align-items: center; gap: 40px; }
.wordmark { display: inline-flex; align-items: center; gap: 13px; min-width: 0; }
.brand-mark { width: 33px; height: 33px; flex: 0 0 auto; border: 2px solid var(--blue); position: relative; display: grid; place-items: center; }
.brand-mark::before { content: ""; width: 12px; height: 12px; border: 2px solid var(--blue); border-radius: 50%; }
.brand-mark span { position: absolute; right: -5px; top: -5px; width: 8px; height: 8px; background: var(--blue); }
.wordmark-text { font-size: 15px; font-weight: 650; letter-spacing: .035em; line-height: 1.4; }
.main-nav { margin-left: auto; display: flex; gap: 30px; align-items: center; white-space: nowrap; }
.main-nav a { font-size: 13px; color: #465f72; transition: color .2s ease; }
.main-nav a:hover, .footer-links a:hover, .back-link:hover { color: var(--blue); }
.language-link { white-space: nowrap; font-size: 12px; font-weight: 700; color: var(--blue); border: 1px solid #b8dfe7; padding: 10px 14px; line-height: 1; }
.language-link:hover { background: var(--blue-soft); }

.hero { min-height: 650px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr); align-items: center; gap: 48px; padding-block: 72px 92px; }
.hero-copy { position: relative; z-index: 2; padding-block: 34px; }
.eyebrow { color: var(--blue); font-size: 11px; font-weight: 750; letter-spacing: .23em; display: flex; align-items: center; gap: 13px; margin-bottom: 29px; }
.eyebrow-line { width: 28px; height: 1px; background: var(--blue); flex: 0 0 auto; }
.hero h1 { color: var(--ink-deep); font-size: clamp(47px, 5vw, 76px); line-height: 1.2; letter-spacing: -.055em; font-weight: 680; margin-bottom: 32px; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-lead { font-size: 19px; font-weight: 680; line-height: 1.45; margin-bottom: 15px; }
.hero-description { color: var(--muted); max-width: 580px; font-size: 15px; line-height: 2; margin-bottom: 34px; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 48px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 680; padding: 16px 19px 16px 24px; min-width: 154px; transition: background .2s ease; }
.primary-link:hover { background: var(--blue); }
.primary-link span { font-size: 19px; font-weight: 400; line-height: .7; }

.hero-art { height: 440px; position: relative; background: linear-gradient(148deg,#e9f7f9 0%,#dbeef2 48%,#eef6f8 100%); overflow: hidden; border: 1px solid #dfecf0; }
.art-grid { position: absolute; inset: 0; background-image: linear-gradient(#32798a15 1px,transparent 1px),linear-gradient(90deg,#32798a15 1px,transparent 1px); background-size: 32px 32px; mask-image: linear-gradient(130deg,transparent 3%,#000 40%,#000 75%,transparent); }
.art-orbit { position: absolute; width: 445px; height: 445px; border: 1px solid #4196a759; border-radius: 50%; left: 50%; top: 50%; transform: translate(-50%,-50%) rotate(-19deg) scaleY(.72); }
.orbit-two { width: 310px; height: 310px; border-color: #1a82966c; transform: translate(-50%,-50%) rotate(34deg) scaleY(.74); }
.art-core { position: absolute; width: 192px; height: 192px; left: 50%; top: 50%; transform: translate(-50%,-50%) rotate(45deg); background: linear-gradient(145deg,#0c8098,#115772); box-shadow: 25px 25px 60px #2c6e803d; display: grid; place-items: center; }
.art-core::before { content: ""; position: absolute; inset: 20px; border: 1px solid #ffffff55; }
.art-core span { width: 72px; height: 72px; border: 1px solid #c8f3fcbb; border-radius: 50%; }
.art-dot { position: absolute; width: 12px; height: 12px; background: #0e819a; border: 3px solid #e7f9fc; border-radius: 50%; box-shadow: 0 0 0 1px #0e819a; }
.dot-one { top: 98px; right: 100px; }.dot-two { bottom: 90px; left: 74px; }
.art-label { position: absolute; color: #356e7c; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; letter-spacing: .16em; }
.label-one { left: 27px; top: 27px; }.label-two { right: 27px; top: 27px; }.label-three { right: 27px; bottom: 27px; }

.section { padding-block: 112px; scroll-margin-top: 24px; }
.section-index { color: var(--blue); font-size: 11px; font-weight: 760; letter-spacing: .18em; margin-bottom: 28px; }
.about-section { background: var(--paper); border-block: 1px solid var(--line); }
.section-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13%; }
.section-heading h2, .section-topline h2, .contact-inner h2 { font-size: clamp(30px, 3.1vw, 48px); line-height: 1.35; letter-spacing: -.045em; font-weight: 680; color: var(--ink-deep); margin-bottom: 0; }
.section-body { color: var(--muted); font-size: 15px; line-height: 2.05; padding-top: 51px; }
.section-body p { margin-bottom: 19px; }
.section-body .large-copy { color: var(--ink); font-weight: 650; font-size: 19px; line-height: 1.8; }
.fine-rule { height: 1px; background: var(--line); margin-block: 31px 18px; }
.section-body .micro-copy { color: #8a9fac; font-size: 11px; letter-spacing: .18em; margin: 0; }
.work-section { background: var(--canvas); }
.section-topline { display: grid; grid-template-columns: 1fr 2fr; gap: 0 6%; align-items: end; margin-bottom: 40px; }
.section-topline .section-index { grid-column: 1 / -1; }
.section-topline p:last-child { color: var(--muted); font-size: 13px; line-height: 1.75; margin: 0 0 4px; justify-self: end; }
.work-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.work-card { min-height: 210px; display: grid; grid-template-columns: 52px minmax(0,1fr) 20px; gap: 15px; align-items: start; padding: 32px 32px 30px; background: #fff; border: 1px solid #e4ebef; transition: border-color .2s ease, transform .2s ease; }
.work-card:hover { border-color: #a9d7df; transform: translateY(-2px); }
.card-number { color: var(--blue); font: 12px ui-monospace, SFMono-Regular, Consolas, monospace; padding-top: 4px; }
.work-card h3 { font-size: 19px; line-height: 1.45; font-weight: 680; margin-bottom: 16px; }
.work-card p { color: var(--muted); font-size: 13px; line-height: 1.85; margin: 0; }
.card-arrow { color: #a5c9d0; font-size: 21px; line-height: 1; }
.contact-section { background: var(--ink-deep); color: #fff; padding-block: 92px; }
.contact-inner { display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.contact-inner .section-index { color: #88d6e6; }
.contact-inner h2 { color: #fff; margin-bottom: 15px; }
.contact-inner p:last-child { color: #b9cad3; font-size: 14px; margin: 0; }
.contact-email { color: #fff; font-size: clamp(20px,2.3vw,32px); border-bottom: 1px solid #79b9c4; padding-bottom: 12px; display: inline-flex; gap: 29px; align-items: center; white-space: nowrap; }
.contact-email:hover { color: #bdebf4; }.contact-email span { font-size: 23px; }

.site-footer { background: #fff; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; padding-block: 57px 51px; }
.footer-name { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.footer-translation { font-size: 12px; color: #5e7484; margin-bottom: 22px; }
.footer-line { color: #5e7484; font-size: 12px; margin: 0; }
.footer-links { display: flex; gap: 28px; align-items: start; flex-wrap: wrap; color: #526c7f; font-size: 12px; }
.footer-bottom { border-top: 1px solid var(--line); padding-block: 21px 27px; display: flex; justify-content: space-between; gap: 20px; color: #5e7484; font-size: 11px; }
.footer-bottom a { color: #5e7484; }.footer-bottom a:hover { color: var(--blue); }

.legal-main { background: var(--canvas); }
.legal-hero { padding-block: 72px 70px; border-bottom: 1px solid var(--line); }
.back-link { display: inline-flex; gap: 10px; font-size: 12px; color: #708596; margin-bottom: 55px; }
.legal-hero .eyebrow { margin-bottom: 25px; }
.legal-hero h1 { font-size: clamp(44px, 5vw, 68px); letter-spacing: -.05em; line-height: 1.2; font-weight: 680; color: var(--ink-deep); margin-bottom: 18px; }
.legal-intro { font-size: 17px; line-height: 1.8; color: var(--muted); max-width: 720px; margin-bottom: 28px; }
.legal-date { color: #607787; font-size: 12px; margin-bottom: 0; }
.legal-content { padding-block: 15px 98px; max-width: 1010px; }
.legal-section { display: grid; grid-template-columns: 90px minmax(0,1fr); gap: 38px; border-bottom: 1px solid var(--line); padding-block: 46px; }
.legal-number { color: var(--blue); font: 13px ui-monospace, SFMono-Regular, Consolas, monospace; padding-top: 7px; }
.legal-section h2 { font-size: 22px; font-weight: 680; margin-bottom: 17px; }
.legal-section p { max-width: 740px; color: #506779; font-size: 14px; line-height: 2; margin-bottom: 15px; }
.legal-section p:last-child { margin-bottom: 0; }
.legal-section a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 1000px) {
  .shell { width: min(100% - 64px, 1180px); }
  .header-inner { gap: 20px; }
  .main-nav { gap: 16px; }
  .wordmark-text { font-size: 13px; }
  .hero { gap: 25px; min-height: 590px; }
  .hero-art { height: 370px; }
  .hero h1 { font-size: clamp(44px, 5vw, 61px); }
  .section-grid { gap: 7%; }
}

@media (max-width: 760px) {
  .shell { width: calc(100% - 40px); }
  .header-inner { min-height: 0; padding-block: 17px; flex-wrap: wrap; justify-content: space-between; }
  .wordmark { max-width: calc(100% - 116px); }
  .main-nav { flex: 0 0 100%; order: 3; margin-left: 0; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--line); }
  .main-nav a { font-size: 12px; }
  .language-link { font-size: 11px; }
  .hero { display: block; padding-block: 61px 70px; min-height: 0; }
  .hero-copy { padding-block: 0; }
  .hero h1 { font-size: clamp(43px, 8.5vw, 64px); }
  .hero-art { height: 340px; margin-top: 57px; }
  .section { padding-block: 77px; }
  .section-grid, .section-topline { display: block; }
  .section-body { padding-top: 29px; }
  .section-topline p:last-child { margin-top: 15px; }
  .work-grid { grid-template-columns: 1fr; }
  .work-card { min-height: 170px; }
  .contact-inner { display: block; }
  .contact-email { margin-top: 41px; }
  .footer-top { padding-block: 43px; display: block; }
  .footer-links { margin-top: 32px; gap: 16px 24px; }
  .legal-hero { padding-block: 52px 53px; }
  .back-link { margin-bottom: 45px; }
  .legal-content { padding-bottom: 70px; }
  .legal-section { grid-template-columns: 36px minmax(0,1fr); gap: 16px; padding-block: 35px; }
}

@media (max-width: 440px) {
  .shell { width: calc(100% - 36px); }
  .wordmark-text { font-size: 12px; }
  .brand-mark { width: 29px; height: 29px; }
  .hero h1 { font-size: 42px; }
  .hero-lead { font-size: 17px; }
  .hero-art { height: 295px; }
  .art-core { width: 154px; height: 154px; }
  .art-orbit { width: 320px; height: 320px; }
  .orbit-two { width: 230px; height: 230px; }
  .dot-one { top: 64px; right: 54px; }.dot-two { bottom: 57px; left: 40px; }
  .work-card { grid-template-columns: 35px minmax(0,1fr) 15px; gap: 10px; padding: 25px 18px; }
  .contact-email { font-size: 20px; gap: 10px; }
  .footer-bottom { display: block; line-height: 1.9; }
  .footer-bottom a { display: inline-block; margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}