:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef6f9;
  --ink: #172033;
  --muted: #5d6b82;
  --line: #d8e0ea;
  --brand: #165d8f;
  --brand-deep: #12385d;
  --accent: #0f766e;
  --warm: #b45309;
  --shadow: 0 18px 42px rgba(23, 32, 51, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, #f7f8fb 0%, #eef4f7 45%, #ffffff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  min-height: 100vh;
}

.site-header,
.site-footer,
.hero,
.section,
.contact-layout {
  width: min(1160px, calc(100vw - 48px));
  margin: 0 auto;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  margin-top: 18px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 26px rgba(23, 32, 51, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--brand-deep);
  color: #ffffff;
  font-size: 17px;
}

.brand-text {
  font-size: 16px;
  line-height: 1.2;
}

.site-nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover,
.site-footer a:hover,
.info-table a:hover,
.contact-list a:hover {
  color: var(--brand);
}

.header-action,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.header-action,
.button.primary {
  background: var(--brand-deep);
  color: #ffffff;
}

.button.secondary {
  border-color: var(--line);
  background: #ffffff;
  color: var(--brand-deep);
}

.header-action:hover,
.button:hover {
  transform: translateY(-1px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 36px;
  align-items: center;
  padding: 72px 0 22px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.contact-copy h1 {
  margin: 0;
  font-size: clamp(38px, 5.4vw, 68px);
  line-height: 1.06;
  letter-spacing: 0;
}

.hero-text,
.contact-copy p,
.feature-card p,
.notice-band p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-notes span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  font-size: 13px;
}

.registry-panel,
.feature-card,
.info-table,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.registry-panel {
  display: grid;
  overflow: hidden;
}

.registry-row {
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
}

.registry-row:last-child {
  border-bottom: 0;
}

.registry-row span,
.info-table span,
.contact-list dt {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.registry-row strong,
.info-table strong,
.contact-list dd {
  display: block;
  margin: 0;
  font-size: 21px;
  line-height: 1.35;
}

.registry-row small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 64px 0 0;
}

.section-head {
  max-width: 780px;
  margin-bottom: 24px;
}

.section-head h2,
.cta h2,
.contact-card h2 {
  margin: 0;
  font-size: clamp(27px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  padding: 22px;
}

.feature-card h3 {
  margin: 0 0 12px;
  font-size: 21px;
}

.feature-card p {
  margin: 0;
}

.filing {
  padding-top: 64px;
}

.info-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
}

.info-table div {
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.info-table div:nth-child(2n) {
  border-right: 0;
}

.info-table div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 68px;
}

.site-footer {
  padding: 22px 0 30px;
  color: var(--muted);
  font-size: 14px;
  flex-wrap: wrap;
}

.site-footer a {
  margin-left: auto;
}

.contact-main {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 156px);
  padding: 58px 0 36px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 28px;
  align-items: start;
}

.contact-card {
  padding: 26px;
}

.contact-list {
  display: grid;
  gap: 18px;
  margin: 22px 0 24px;
}

.contact-list div {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.contact-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

@media (max-width: 980px) {
  .site-header,
  .site-footer,
  .hero,
  .section,
  .contact-layout {
    width: min(100vw - 36px, 1160px);
  }

  .site-header,
  .cta {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 14px;
  }

  .hero,
  .contact-layout,
  .feature-grid,
  .feature-grid.three,
  .feature-grid.two,
  .info-table {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .info-table div,
  .info-table div:nth-child(2n),
  .info-table div:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .info-table div:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 560px) {
  .site-header {
    position: static;
    margin-top: 0;
    border-radius: 0;
    width: 100%;
  }

  .brand,
  .header-action,
  .button {
    width: 100%;
  }

  .brand {
    justify-content: center;
  }

  .site-footer a {
    margin-left: 0;
  }

  .site-shell {
    padding-top: 0;
  }

  .hero h1,
  .contact-copy h1 {
    font-size: 36px;
  }

  .registry-row strong,
  .info-table strong,
  .contact-list dd {
    font-size: 19px;
  }
}
