:root {
  --ink: #111827;
  --muted: #657080;
  --paper: #f7f8fa;
  --surface: #ffffff;
  --line: #dce2e8;
  --navy: #0b2d4f;
  --blue: #2467a6;
  --orange: #d9633a;
  --radius: 24px;
  --shadow: 0 18px 60px rgba(11, 45, 79, .09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
address { font-style: normal; }

.sr-only, .honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.skip-link { position: fixed; left: 1rem; top: -4rem; z-index: 100; background: #fff; padding: .75rem 1rem; }
.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 250, .9);
  border-bottom: 1px solid rgba(220, 226, 232, .8);
  backdrop-filter: blur(16px);
}
.header-inner {
  width: min(1160px, calc(100% - 40px));
  min-height: 86px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand-logo { width: 230px; height: 48px; object-fit: contain; object-position: left center; }
.site-nav { display: flex; align-items: center; gap: 18px; }
.site-nav a { font-size: 15px; text-decoration: none; }
.site-nav a:hover { color: var(--blue); }
.lang-switch, .standalone-lang-switch { display: inline-flex; min-height: 34px; align-items: center; justify-content: center; padding: 0 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy); background: rgba(255,255,255,.72); font-size: 12px !important; font-weight: 800; letter-spacing: .04em; text-decoration: none; }
.lang-switch:hover, .standalone-lang-switch:hover { border-color: var(--blue); }
.language-suggestion { position: relative; z-index: 110; display: flex; align-items: center; justify-content: center; gap: 18px; min-height: 52px; padding: 9px 20px; color: #fff; background: var(--navy); }
.language-suggestion p { margin: 0; font-size: 14px; }
.language-suggestion-actions { display: flex; gap: 9px; flex: none; }
.language-suggestion button { min-height: 34px; padding: 0 13px; border-radius: 999px; font-size: 13px; font-weight: 700; cursor: pointer; }
.language-suggestion-primary { border: 1px solid #fff; color: var(--navy); background: #fff; }
.language-suggestion-secondary { border: 1px solid rgba(255,255,255,.55); color: #fff; background: transparent; }
.nav-contact { padding: 9px 16px; color: #fff !important; background: var(--ink); border-radius: 999px; }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.menu-toggle > span:not(.sr-only) { display: block; width: 24px; height: 2px; margin: 5px; background: var(--ink); }

main { overflow: hidden; }
.hero { width: min(1160px, calc(100% - 40px)); margin: 0 auto; padding: 104px 0 88px; text-align: center; }
.hero-copy { max-width: 860px; margin: 0 auto 54px; }
.eyebrow { margin: 0 0 20px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .24em; }
h1, h2 { font-family: Cardo, "Noto Serif SC", "Songti SC", STSong, Georgia, serif; font-weight: 400; letter-spacing: -.035em; }
h1 { margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: 1.15; }
.hero-intro { max-width: 660px; margin: 26px auto 30px; color: var(--muted); font-size: 18px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 25px; border: 0; border-radius: 8px; color: #fff; background: var(--ink); text-decoration: none; cursor: pointer; transition: transform .2s, background .2s; }
.button:hover { background: var(--navy); transform: translateY(-2px); }
.hero-visual { margin: 0; overflow: hidden; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.hero-visual img { width: 100%; aspect-ratio: 1.895 / 1; object-fit: cover; }

.section-heading { max-width: 780px; }
.section-heading h2 { margin: 0 0 18px; font-size: clamp(36px, 4.6vw, 56px); line-height: 1.15; }
.section-heading > p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: 17px; }

.about-section { padding: 112px max(20px, calc((100vw - 1160px) / 2)); background: var(--surface); }
.about-heading { margin-bottom: 48px; }
.proof-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 22px; }
.proof-card { min-height: 260px; padding: 32px; border: 1px solid var(--line); border-radius: 18px; background: #f5f8fb; }
.proof-card-primary { color: #fff; background: var(--navy); border-color: var(--navy); }
.proof-card strong { display: block; margin-bottom: 22px; font-size: clamp(46px, 5vw, 68px); line-height: 1; letter-spacing: -.05em; }
.proof-tag { display: inline-flex; min-height: 30px; align-items: center; margin-bottom: 34px; padding: 0 10px; border-radius: 999px; color: var(--blue); background: #e4f1ff; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.proof-card h3 { margin: 0 0 12px; font-size: 19px; }
.proof-card p { margin: 0; color: var(--muted); font-size: 14px; }
.proof-card-primary p { color: #c5d4e2; }

.services-section { padding: 112px max(20px, calc((100vw - 1160px) / 2)) 120px; background: var(--surface); }
.services-heading { margin-bottom: 48px; }
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card { min-height: 420px; padding: 38px 34px; border: 1px solid var(--line); border-radius: 18px; background: #fff; display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.service-index { color: var(--orange); font: 700 12px/1 Inter, sans-serif; letter-spacing: .12em; }
.service-card h2 { min-height: 72px; margin: 24px 0 18px; font: 700 21px/1.45 Inter, "PingFang SC", sans-serif; letter-spacing: -.02em; }
.service-card ul { margin: 0; padding: 0; list-style: none; color: #3e4856; }
.service-card li { position: relative; margin: 12px 0; padding-left: 18px; }
.service-card li::before { content: "·"; position: absolute; left: 0; color: var(--blue); font-weight: 900; }
.service-card > a { margin-top: auto; padding-top: 24px; color: var(--navy); font-weight: 700; text-decoration: none; }

.process-section { padding: 112px max(20px, calc((100vw - 1160px) / 2)); color: #fff; background: var(--navy); }
.process-heading { margin-bottom: 54px; }
.process-heading .eyebrow { color: #5fb2ff; }
.process-heading > p:not(.eyebrow) { color: #b9ccdc; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0; padding: 0; list-style: none; }
.process-list li { min-height: 220px; padding: 28px; border: 1px solid rgba(255,255,255,.16); border-radius: 18px; background: rgba(255,255,255,.05); }
.process-list li > span { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; margin-bottom: 44px; border-radius: 50%; color: #fff; background: var(--blue); font-size: 12px; font-weight: 800; }
.process-list h3 { margin: 0 0 10px; font-size: 18px; }
.process-list p { margin: 0; color: #b9ccdc; font-size: 14px; }

.contact-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; width: min(1160px, calc(100% - 40px)); margin: 0 auto; padding: 120px 0; }
.contact-copy h2 { margin: 0 0 20px; font-size: clamp(38px, 5vw, 58px); line-height: 1.15; }
.contact-copy > p:not(.eyebrow) { max-width: 420px; color: var(--muted); }
.contact-meta { margin-top: 70px; padding-top: 28px; border-top: 1px solid var(--line); }
.contact-meta > span { display: block; margin-bottom: 10px; font-weight: 800; }
.contact-meta address { color: var(--muted); }
.contact-form { padding: 42px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form label { display: block; margin-bottom: 20px; font-size: 14px; font-weight: 700; }
.contact-form label > span { color: var(--muted); font-size: 12px; font-weight: 400; }
.contact-form input:not([type="checkbox"]), .contact-form select, .contact-form textarea {
  width: 100%;
  margin-top: 8px;
  padding: 13px 14px;
  color: var(--ink);
  border: 1px solid #cbd3dc;
  border-radius: 8px;
  background: #fff;
  outline: none;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(36, 103, 166, .12); }
.contact-form textarea { resize: vertical; min-height: 145px; }
.consent { display: flex !important; align-items: flex-start; gap: 10px; color: var(--muted); font-weight: 400 !important; }
.consent input { margin-top: 5px; accent-color: var(--navy); }
.consent a { color: var(--navy); }
.submit-button { min-width: 136px; }
.form-note { margin: 12px 0 0; color: var(--muted); font-size: 13px; }

.site-footer { position: relative; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; padding: 78px max(20px, calc((100vw - 1160px) / 2)) 92px; color: #d8e2ec; background: #0c1d2d; }
.footer-brand { color: #fff; }
.footer-brand .brand-logo { width: 250px; height: 54px; padding: 6px 8px; border-radius: 6px; background: #fff; }
.site-footer p { color: #96a8ba; }
.site-footer > div > a:not(.brand) { display: block; margin: 9px 0; color: #c8d3de; text-decoration: none; }
.footer-title { color: #fff !important; font-weight: 800; }
.footer-disclaimer { grid-column: 1 / -1; max-width: 920px; margin: 0 0 12px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }
.copyright { position: absolute; left: max(20px, calc((100vw - 1160px) / 2)); bottom: 20px; font-size: 12px; }

.simple-page { min-height: 100vh; }
.simple-main { width: min(760px, calc(100% - 40px)); margin: 0 auto; padding: 100px 0 140px; }
.simple-main h1 { font-size: clamp(40px, 6vw, 64px); }
.simple-main h2 { margin-top: 44px; font: 700 22px/1.4 Inter, sans-serif; letter-spacing: 0; }
.simple-main p, .simple-main li { color: #455160; }

@media (max-width: 980px) {
  .header-inner { min-height: 72px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; left: 0; right: 0; top: 72px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 20px 24px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 13px 0; }
  .site-nav .lang-switch { min-height: 40px; margin: 8px 0 0; padding: 0 14px; }
  .nav-contact { margin-top: 8px; text-align: center; }
  .hero { padding-top: 72px; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-card { min-height: auto; }
  .services { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .service-card h2 { min-height: 0; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .contact-section { grid-template-columns: 1fr; gap: 50px; }
  .contact-meta { margin-top: 36px; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .language-suggestion { align-items: stretch; flex-direction: column; gap: 8px; padding: 12px 14px; text-align: center; }
  .language-suggestion-actions { justify-content: center; }
  .header-inner, .hero, .contact-section { width: min(100% - 28px, 1160px); }
  .brand-logo { width: 188px; height: 40px; }
  .hero { padding: 58px 0 66px; }
  .hero-intro { font-size: 16px; }
  .about-section, .services-section, .process-section { padding-top: 84px; padding-bottom: 84px; }
  .service-card { padding: 30px 25px; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li { min-height: auto; }
  .process-list li > span { margin-bottom: 28px; }
  .contact-section { padding: 88px 0; }
  .contact-form { padding: 28px 20px; border-radius: 16px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer > div:first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}