:root {
  --ink: #191919;
  --text: #4d4d4d;
  --muted: #777;
  --line: #e7e7e7;
  --accent: #e7b900;
  --accent-dark: #2c2600;
  --width: min(1080px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { width: var(--width); margin: 0 auto; }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.company-name { display: flex; flex-direction: column; }
.company-name strong { font-size: 17px; letter-spacing: .06em; }
.company-name span { margin-top: 3px; color: var(--muted); font-size: 8px; letter-spacing: .12em; }
nav { display: flex; gap: 30px; }
nav a { color: #555; font-size: 13px; }
nav a:hover { color: #000; }

.hero { border-bottom: 1px solid var(--line); }
.hero-inner { padding: 120px 0 125px; }
.eyebrow, .section-label {
  margin: 0 0 18px;
  color: #806800;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}
.hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(48px, 8vw, 88px);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.hero-text {
  max-width: 650px;
  margin: 30px 0 0;
  color: var(--text);
  font-size: 17px;
  line-height: 1.9;
}
.hero-actions { display: flex; margin-top: 38px; gap: 12px; }
.button {
  display: inline-flex;
  min-height: 46px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 7px;
  font-size: 14px;
  font-weight: 650;
}
.button.primary { border-color: var(--accent); color: var(--accent-dark); background: var(--accent); }
.button.secondary:hover { color: #fff; background: var(--ink); }

.section { padding: 100px 0; scroll-margin-top: 70px; }
.section h2 { margin: 0; font-size: clamp(32px, 4vw, 48px); letter-spacing: -.035em; }
.two-column { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; }
.section-copy p {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.9;
}
.contact-section { color: #fff; background: var(--ink); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 90px; }
.contact-section .section-label { color: #e9c52a; }
.contact-section p:not(.section-label) { max-width: 520px; color: #b9b9b9; line-height: 1.8; }
.contact-section dl { margin: 0; border-top: 1px solid #3b3b3b; }
.contact-section dl div { padding: 18px 0; border-bottom: 1px solid #3b3b3b; }
.contact-section dt { margin-bottom: 7px; color: #858585; font-size: 12px; }
.contact-section dd { margin: 0; font-size: 14px; }
.contact-section dd a { text-decoration: underline; text-decoration-color: #555; text-underline-offset: 4px; }
.contact-section dd a:hover { color: #e9c52a; }

footer { color: #8d8d8d; background: #111; }
.footer-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
}
.footer-inner div { display: flex; gap: 22px; }
.footer-inner a:hover { color: #fff; }

@media (max-width: 760px) {
  :root { --width: min(100% - 30px, 620px); }
  .header-inner { min-height: 62px; }
  .company-name strong { font-size: 15px; }
  nav { gap: 16px; }
  nav a { font-size: 12px; }
  .hero-inner { padding: 85px 0 90px; }
  .hero h1 { font-size: clamp(44px, 14vw, 66px); }
  .hero-text { font-size: 15px; }
  .section { padding: 75px 0; }
  .two-column, .contact-inner { grid-template-columns: 1fr; gap: 35px; }
  .footer-inner { padding: 22px 0; align-items: flex-start; flex-direction: column; }
  .footer-inner p { margin: 0; }
}