:root {
  --paper: #e8e9e3;
  --paper-lift: #f2f3ee;
  --ink: #1a1e1c;
  --ink-soft: #565e59;
  --line: rgba(26, 30, 28, 0.16);
  --line-soft: rgba(26, 30, 28, 0.09);
  --seal: #a5391f;
  --seal-wash: rgba(165, 57, 31, 0.08);

  --display: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --body: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;

  --gutter: clamp(1.25rem, 4vw, 3rem);
  --measure: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(26, 30, 28, 0.022) 0 1px,
    transparent 1px 4px
  );
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
  transition: text-decoration-color 160ms ease, color 160ms ease;
}

a:hover {
  color: var(--seal);
  text-decoration-color: var(--seal);
}

:focus-visible {
  outline: 2px solid var(--seal);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--paper);
  z-index: 10;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
}

/* ---------- header ---------- */

.top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  color: var(--ink);
  flex: none;
}

.brand__text {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
}

.brand__text strong {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.brand__text span {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
}

.top__nav {
  display: flex;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.25rem);
  font-size: 0.9375rem;
}

.top__nav a {
  text-decoration: none;
  color: var(--ink-soft);
}

.top__nav a:hover {
  color: var(--ink);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn--solid {
  background: var(--ink);
  color: var(--paper);
}

.btn--solid:hover {
  background: var(--seal);
  border-color: var(--seal);
  color: var(--paper-lift);
}

.btn--quiet {
  border-color: var(--line);
  color: var(--ink);
}

.btn--quiet:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--paper-lift);
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(2.75rem, 7vw, 5.5rem) var(--gutter) clamp(2.5rem, 6vw, 4.5rem);
}

.hero__lede {
  animation: rise 520ms cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.hero h1 {
  margin: 0 0 1.5rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.6vw, 4.15rem);
  line-height: 1.06;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.hero__name {
  display: block;
}

.hero__legal {
  display: block;
  font-size: 0.44em;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  margin-top: 0.55rem;
  padding-left: 0.1em;
}

.hero__pitch {
  max-width: 30em;
  margin: 0 0 1rem;
  font-size: 1.1875rem;
  line-height: 1.7;
}

.hero__note {
  max-width: 32em;
  margin: 0 0 2rem;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- registry card ---------- */

.registry {
  background: var(--paper-lift);
  border: 1px solid var(--line);
  padding: clamp(1.25rem, 2.5vw, 1.85rem);
  animation: rise 520ms cubic-bezier(0.22, 0.61, 0.36, 1) 90ms both;
}

.registry__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.registry__head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.registry__state {
  font-size: 0.8125rem;
  color: var(--seal);
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 0.05rem 0.4rem;
  letter-spacing: 0.08em;
}

.registry__list {
  margin: 0;
  display: grid;
}

.registry__list > div {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}

.registry__list > div:last-child {
  border-bottom: 0;
}

.registry__list dt {
  font-size: 0.8125rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.registry__list dd {
  margin: 0;
  font-size: 0.9375rem;
}

.registry__source {
  margin: 0.9rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ---------- blocks ---------- */

.block {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--gutter);
  border-top: 1px solid var(--line);
}

.block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.block__head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.6vw, 1.95rem);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.block__head p {
  margin: 0;
  max-width: 34em;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

/* ---------- business rows ---------- */

.rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.row {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
  gap: 1rem clamp(1.5rem, 4vw, 3.5rem);
  padding: 1.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.row:first-child {
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}

.row h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.row p {
  margin: 0;
  max-width: 44em;
  color: var(--ink-soft);
}

/* ---------- facts ---------- */

.facts {
  margin: 0;
  display: grid;
}

.fact {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: 0.5rem clamp(1.5rem, 4vw, 3.5rem);
  padding: 1.1rem 0;
  border-top: 1px solid var(--line-soft);
  align-items: baseline;
}

.fact:first-child {
  border-top: 1px solid var(--line);
}

.fact dt {
  color: var(--ink-soft);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

.fact dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
}

.fact dd strong {
  font-family: var(--display);
  font-size: 1.0625rem;
  letter-spacing: 0.06em;
}

.fact dd span {
  color: var(--ink-soft);
  font-size: 0.875rem;
}

.block--contact .facts--contact .fact dd {
  min-height: 1.75rem;
}

/* ---------- footer ---------- */

.foot {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2rem var(--gutter) 3rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.foot p {
  margin: 0;
}

.foot__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
}

.foot__meta a {
  color: var(--ink-soft);
}

/* ---------- motion ---------- */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__lede,
  .registry {
    animation: none;
  }
  * {
    transition: none !important;
  }
}

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .registry {
    max-width: 34rem;
  }
}

@media (max-width: 720px) {
  .top {
    grid-template-columns: auto 1fr;
    row-gap: 0.75rem;
  }

  .top__nav {
    grid-column: 1 / -1;
    order: 3;
    justify-content: flex-start;
    gap: 1.25rem;
    border-top: 1px solid var(--line-soft);
    padding-top: 0.75rem;
    font-size: 0.875rem;
  }

  .top__cta {
    display: none;
  }

  .row,
  .fact {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.35rem;
  }

  .registry__list > div {
    grid-template-columns: 6.5rem minmax(0, 1fr);
  }
}