:root {
  --ink: #15201d;
  --muted: #5d6965;
  --line: #dfe6e3;
  --soft: #f3f7f5;
  --paper: #ffffff;
  --green: #167a5b;
  --green-dark: #0f5f47;
  --green-soft: #dff2e9;
  --coral: #ee654f;
  --navy: #0c1824;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: 72px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand, .footer-brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--green);
  border-radius: 6px;
  font-weight: 800;
  font-size: 20px;
}
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy strong { font-size: 17px; }
.brand-copy small { margin-top: 3px; color: var(--muted); font-size: 11px; text-transform: uppercase; }

.site-nav { display: flex; align-items: center; gap: 30px; font-size: 14px; }
.site-nav > a { position: relative; color: #34423e; }
.site-nav > a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--green);
  transform: scaleX(0);
  transition: transform 160ms ease;
}
.site-nav > a:hover::after { transform: scaleX(1); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; color: var(--ink); }

.hero {
  position: relative;
  min-height: min(680px, calc(100vh - 72px));
  background-image: url("./assets/personal-workspace.jpg");
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.hero-overlay { position: absolute; inset: 0; background: rgba(5, 16, 25, 0.52); }
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 48px));
  min-height: inherit;
  margin: 0 auto;
  display: flex;
  align-items: center;
}
.hero-copy { width: min(540px, 47%); padding: 76px 0 94px; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: #dcebe5; font-size: 13px; font-weight: 700; }
.eyebrow span { width: 28px; height: 2px; background: #6ed1aa; }
.hero h1 { margin: 18px 0 8px; font-size: 54px; line-height: 1.12; letter-spacing: 0; }
.hero p { margin: 0; max-width: 510px; color: #e3ebe8; font-size: 18px; }
.hero-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  min-height: 48px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button svg { width: 18px; height: 18px; }
.button-primary { background: #45b98c; color: #071a12; }
.button-primary:hover { background: #63cba3; }
.button-secondary { border-color: rgba(255,255,255,.6); color: #fff; background: rgba(8,20,30,.36); }
.button-secondary:hover { border-color: #fff; background: rgba(8,20,30,.65); }

.trust-strip {
  width: min(var(--max), calc(100% - 48px));
  min-height: 110px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}
.trust-strip > div { display: flex; align-items: center; gap: 12px; padding: 20px 22px; border-right: 1px solid var(--line); }
.trust-strip > div:first-child { padding-left: 0; }
.trust-strip > div:last-child { border-right: 0; }
.trust-strip svg { width: 24px; color: var(--green); flex: 0 0 auto; }
.trust-strip span { display: grid; }
.trust-strip b { font-size: 14px; }
.trust-strip small { color: var(--muted); font-size: 12px; }

.section { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 100px 0; }
.section-heading { max-width: 700px; margin-bottom: 46px; }
.section-kicker { color: var(--green); font-size: 13px; font-weight: 800; }
.section-heading h2, .about-inner h2 {
  margin: 10px 0 12px;
  font-size: 34px;
  line-height: 1.28;
  letter-spacing: 0;
}
.section-heading p, .about-inner > p { margin: 0; color: var(--muted); font-size: 16px; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-card {
  position: relative;
  min-height: 255px;
  padding: 30px;
  background: var(--soft);
  border: 1px solid #e3ebe7;
  border-radius: 8px;
}
.service-card > svg { width: 30px; height: 30px; color: var(--green); }
.service-card > span { position: absolute; top: 24px; right: 26px; color: #9aa6a1; font: 700 12px/1 system-ui, sans-serif; }
.service-card h3 { margin: 34px 0 10px; font-size: 20px; }
.service-card p { margin: 0; color: var(--muted); font-size: 14px; }

.records-section { background: #fafcfa; border-top: 1px solid var(--line); }
.records-inner {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 84px 0;
  display: grid;
  grid-template-columns: .68fr 1.32fr;
  gap: 72px;
}
.records-heading h2 { margin: 10px 0 12px; font-size: 29px; line-height: 1.3; }
.records-heading p { margin: 0; color: var(--muted); font-size: 14px; }
.records-list { border-top: 1px solid var(--line); }
.records-list article {
  min-height: 112px;
  padding: 22px 4px;
  display: grid;
  grid-template-columns: 88px 1fr 26px;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}
.records-list time { color: var(--green); font: 700 12px/1.4 system-ui, sans-serif; }
.records-list h3 { margin: 0 0 5px; font-size: 16px; }
.records-list p { margin: 0; color: var(--muted); font-size: 13px; }
.records-list svg { width: 21px; color: #8a9892; }

.compact-heading { margin-bottom: 38px; }
.compliance-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.compliance-list article { min-height: 145px; padding: 30px 30px 30px 0; display: grid; grid-template-columns: 44px 1fr; gap: 18px; border-bottom: 1px solid var(--line); }
.compliance-list article:nth-child(odd) { border-right: 1px solid var(--line); }
.compliance-list article:nth-child(even) { padding-left: 30px; }
.compliance-list svg { width: 28px; color: var(--green); }
.compliance-list h3 { margin: 0 0 6px; font-size: 17px; }
.compliance-list p { margin: 0; color: var(--muted); font-size: 14px; }

.about-section { color: #fff; background: var(--green-dark); }
.about-inner {
  width: min(var(--max), calc(100% - 48px));
  min-height: 275px;
  margin: 0 auto;
  padding: 70px 0;
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  align-items: center;
  gap: 80px;
}
.about-inner .section-kicker { color: #9de4c7; }
.about-inner h2 { margin-bottom: 0; }
.about-inner > p { color: #dcebe5; }

.site-footer { color: #c7d0cc; background: #111a20; }
.footer-main, .footer-bottom { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; display: flex; justify-content: space-between; }
.footer-main { min-height: 142px; padding: 38px 0; align-items: center; }
.footer-brand .brand-mark { background: #24323a; }
.footer-brand strong { color: #fff; }
.footer-brand p { margin: 2px 0 0; color: #899791; font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 26px; font-size: 13px; }
.footer-links a:hover, .filing-links a:hover { color: #fff; }
.footer-bottom { min-height: 64px; padding: 16px 0; align-items: center; gap: 20px; border-top: 1px solid #29343a; font-size: 12px; }
.filing-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 18px; }
.filing-pending { display: inline-flex; align-items: center; gap: 6px; color: #99a69f; }
.filing-pending svg { width: 15px; }

.legal-page { background: #f3f6f5; }
.legal-header { position: static; }
.legal-home-link {
  min-height: 40px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  color: #fff;
  background: var(--green);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
}
.legal-home-link:hover { background: var(--green-dark); }
.legal-main { width: min(840px, calc(100% - 40px)); margin: 56px auto 80px; padding: 48px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.legal-main h1 { margin: 0 0 8px; font-size: 34px; }
.legal-main .updated { margin: 0 0 34px; color: var(--muted); font-size: 13px; }
.legal-main h2 { margin: 32px 0 8px; font-size: 19px; }
.legal-main p, .legal-main li { color: #47534f; font-size: 14px; }
.legal-main ul { padding-left: 20px; }

@media (max-width: 900px) {
  .site-header { padding: 0 20px; }
  .nav-toggle { display: grid; place-items: center; }
  .site-nav { position: absolute; top: 72px; right: 0; left: 0; padding: 18px 20px 22px; display: none; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 18px 30px rgba(22,31,28,.08); }
  .site-nav.open { display: grid; }
  .site-nav > a { min-height: 46px; display: flex; align-items: center; }
  .site-nav > a::after { display: none; }
  .hero { min-height: 610px; background-position: 60% center; }
  .hero-overlay { background: rgba(5, 16, 25, .68); }
  .hero-copy { width: 68%; }
  .trust-strip { grid-template-columns: 1fr 1fr; }
  .trust-strip > div { border-bottom: 1px solid var(--line); }
  .trust-strip > div:nth-child(2) { border-right: 0; }
  .trust-strip > div:first-child { padding-left: 22px; }
  .records-inner { grid-template-columns: 1fr; gap: 34px; }
  .about-inner { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 640px) {
  .brand-copy small { display: none; }
  .hero { min-height: 620px; background-position: 58% center; }
  .hero-inner { width: min(100% - 36px, var(--max)); align-items: flex-end; }
  .hero-copy { width: 100%; padding: 80px 0 58px; }
  .hero h1 { font-size: 40px; }
  .hero p { font-size: 16px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .trust-strip { width: 100%; grid-template-columns: 1fr; }
  .trust-strip > div { padding: 18px 20px; border-right: 0; }
  .trust-strip > div:first-child { padding-left: 20px; }
  .section, .records-inner, .about-inner { width: calc(100% - 36px); padding: 72px 0; }
  .section-heading h2, .about-inner h2 { font-size: 28px; }
  .service-grid, .compliance-list { grid-template-columns: 1fr; }
  .service-card { min-height: 230px; }
  .records-list article { grid-template-columns: 1fr 22px; gap: 8px 14px; }
  .records-list time { grid-column: 1 / -1; }
  .compliance-list article, .compliance-list article:nth-child(even) { padding: 24px 0; border-right: 0; }
  .footer-main, .footer-bottom { width: calc(100% - 36px); align-items: flex-start; flex-direction: column; }
  .footer-main { gap: 28px; }
  .footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; }
  .footer-bottom { padding: 20px 0; }
  .filing-links { align-items: flex-start; justify-content: flex-start; flex-direction: column; gap: 8px; }
  .legal-main { margin: 24px auto 48px; padding: 26px 22px; }
}

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