:root {
  color-scheme: light;
  --ink: #181d17;
  --paper: #f8f5f0;
  --sage: #e8eddd;
  --lime: #cbe68e;
  --disc: #d0e5ab;
  --leaf: #3e5f28;
  --line: #d5d6ca;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--leaf); outline-offset: 5px; }
h1, h2, h3, p { margin: 0; }

.container { width: min(90%, 1400px); margin-inline: auto; }
.definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 1; padding: 12px; background: var(--paper); transform: translateY(-200%); }
.skip-link:focus { transform: none; }
.icon { width: 1em; height: 1em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }

.site-header { border-bottom: 1px solid var(--line); }
.header-inner, .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 77px; }
.brand { display: inline-flex; align-items: center; gap: 14px; flex: none; font-size: clamp(20px, 2.15vw, 34px); font-weight: 800; line-height: 1.2; }
.brand-mark { display: block; width: 52px; height: 54px; flex: none; }
nav { display: flex; align-items: center; gap: clamp(22px, 3.7vw, 58px); white-space: nowrap; font-size: clamp(15px, 1.5vw, 23px); font-weight: 650; }
nav a { padding-block: 8px; }
.nav-contact { padding-inline: 26px; border: 1.5px solid currentColor; border-radius: 999px; }
nav a:hover, .filing:hover, .back-top:hover { color: var(--leaf); }

.hero { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; min-height: clamp(400px, 33.8vw, 520px); gap: 28px; padding: 26px 0 28px 1.6%; }
.hero-content { padding-bottom: 3px; }
.hero h1 { font-size: clamp(57px, 6.85vw, 108px); line-height: 1.12; font-weight: 900; letter-spacing: -.035em; }
.hero p { margin-top: clamp(18px, 1.9vw, 29px); font-size: clamp(18px, 1.9vw, 29px); line-height: 1.54; letter-spacing: .015em; }
.primary-action { display: inline-flex; gap: 22px; align-items: center; min-height: 64px; margin-top: clamp(23px, 2.25vw, 34px); padding: 8px 34px; background: var(--lime); border-radius: 999px; font-size: clamp(21px, 1.95vw, 30px); font-weight: 750; }
.primary-action .icon { font-size: 1.2em; }
.primary-action:hover { background: #bedc7c; }
.hero-art { position: relative; display: grid; place-items: center; justify-self: start; margin-left: 8%; width: min(82%, 465px); aspect-ratio: 1; border: 1px solid var(--leaf); border-radius: 50%; }
.hero-disc { display: grid; place-items: center; width: 81%; aspect-ratio: 1; border-radius: 50%; background: var(--disc); }
.hero-logo { display: block; width: 66%; height: 72%; }
.orbit-dot { position: absolute; width: 4%; aspect-ratio: 1; border-radius: 50%; background: var(--leaf); }
.orbit-dot-first { top: 12.2%; right: 12.5%; }
.orbit-dot-second { bottom: 13.5%; left: 12.8%; }

.contact { padding: 33px 0 27px; background: var(--sage); }
.contact h2 { font-size: clamp(30px, 3vw, 46px); line-height: 1.22; font-weight: 800; }
.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 25px; }
.contact-item { display: flex; align-items: flex-start; gap: clamp(13px, 1.4vw, 22px); min-width: 0; padding: 2px 12px 4px clamp(24px, 4.65vw, 71px); }
.contact-item:first-child { padding-left: clamp(16px, 3vw, 46px); }
.contact-item + .contact-item { border-left: 1px solid #8caa72; }
.contact-icon { font-size: clamp(38px, 4.4vw, 68px); }
.contact-details { min-width: 0; }
.contact-item h3, .contact-value { font-size: clamp(22px, 2.4vw, 37px); line-height: 1.35; }
.contact-item h3 { font-weight: 800; }
.contact-value { margin-top: 6px; font-family: system-ui, sans-serif; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.contact-action { display: inline-flex; align-items: center; gap: 10px; margin-top: 20px; padding: 4px 0; min-height: 44px; border: 0; color: inherit; background: transparent; cursor: pointer; font-size: clamp(17px, 1.65vw, 25px); white-space: nowrap; }
.contact-action span, .back-top { text-decoration: underline; text-underline-offset: 5px; }
.contact-action:hover { color: var(--leaf); }
.copy-status { min-height: 1.5em; margin-top: 9px; color: #375522; font-size: 15px; }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 80px; }
.footer-inner .brand { gap: 12px; font-size: clamp(17px, 1.75vw, 27px); }
.footer-inner .brand-mark { width: 47px; height: 50px; }
.filing { font-size: 14px; color: #4c5749; }
.back-top { display: flex; align-items: center; gap: 7px; min-height: 44px; white-space: nowrap; font-size: clamp(15px, 1.3vw, 20px); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1.12fr 1fr; min-height: 365px; }
  .hero h1 { font-size: clamp(44px, 6.5vw, 58px); }
  .hero-art { width: 90%; margin-left: 2%; }
  .contact-item, .contact-item:first-child { padding-left: 15px; }
}

@media (max-width: 740px) {
  .container { width: calc(100% - 36px); }
  .header-inner { min-height: 64px; gap: 12px; }
  .brand { gap: 7px; font-size: clamp(16px, 4.5vw, 22px); }
  .brand-mark { width: 34px; height: 39px; }
  nav { gap: 13px; font-size: 14px; }
  nav a { display: grid; place-items: center; min-height: 44px; padding: 4px 0; }
  .nav-contact { padding-inline: 10px; }
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 40px 0 30px; }
  .hero h1 { font-size: clamp(38px, 10vw, 60px); }
  .hero p { margin-top: 17px; font-size: 16px; }
  .primary-action { min-height: 49px; margin-top: 22px; padding-inline: 22px; gap: 12px; font-size: 18px; }
  .hero-art { justify-self: center; width: min(70%, 255px); margin: 0; }
  .contact { padding: 28px 0 14px; }
  .contact-grid { grid-template-columns: 1fr; margin-top: 13px; }
  .contact-item, .contact-item:first-child { padding: 14px 0 10px; gap: 15px; }
  .contact-item + .contact-item { border-left: 0; border-top: 1px solid #8caa72; }
  .contact-icon { font-size: 37px; }
  .contact-item h3, .contact-value { font-size: 23px; }
  .contact-action { margin-top: 3px; }
  .footer-inner { flex-wrap: wrap; gap: 2px 12px; min-height: 0; padding: 10px 0 13px; }
  .footer-inner .brand { gap: 8px; }
  .footer-inner .brand-mark { width: 32px; height: 37px; }
  .filing { flex-basis: 100%; order: 1; font-size: 13px; }
}

@media (max-width: 345px) {
  .container { width: calc(100% - 28px); }
  nav { gap: 8px; font-size: 13px; }
  .nav-contact { padding-inline: 8px; }
}