:root {
  --paper: #f5f2ea;
  --paper-deep: #ebe7dc;
  --ink: #10251f;
  --muted: #607069;
  --forest: #123d31;
  --forest-deep: #0a2a22;
  --mint: #cce5d9;
  --mint-pale: #e7f1ec;
  --coral: #df795b;
  --white: #fffef9;
  --line: rgba(16, 37, 31, 0.16);
  --content: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(16, 37, 31, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 37, 31, 0.03) 1px, transparent 1px),
    var(--paper);
  background-size: 36px 36px;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 18px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: white;
}

.skip-link:focus {
  top: 18px;
}

.site-header,
.hero,
.section,
.notice,
.site-footer {
  width: min(var(--content), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 242, 234, 0.94);
  backdrop-filter: blur(12px);
}

.brand,
.brand-name {
  display: inline-flex;
  align-items: center;
}

.brand {
  gap: 13px;
}

.brand-name {
  gap: 8px;
}

.brand-name strong {
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-name small {
  color: var(--muted);
  font-size: 12px;
}

.brand-mark {
  position: relative;
  width: 38px;
  height: 28px;
  display: inline-block;
}

.brand-mark i {
  position: absolute;
  top: 3px;
  width: 13px;
  height: 22px;
  border: 2px solid currentColor;
  transform: skewX(-18deg);
}

.brand-mark i:nth-child(1) {
  left: 1px;
  background: var(--coral);
  border-color: var(--coral);
}

.brand-mark i:nth-child(2) {
  left: 12px;
  background: var(--paper);
}

.brand-mark i:nth-child(3) {
  left: 23px;
  background: var(--mint);
}

nav {
  display: flex;
  gap: 28px;
}

nav a {
  color: #41514b;
  font-size: 14px;
  font-weight: 650;
}

nav a:hover {
  color: var(--coral);
}

main {
  overflow: hidden;
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(390px, 0.94fr);
  align-items: center;
  gap: 54px;
  padding: 70px 0 80px;
}

.eyebrow,
.section-label {
  margin: 0 0 22px;
  color: var(--forest);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow span,
.notice-label span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 5px rgba(223, 121, 91, 0.14);
}

.hero h1,
.about h2 {
  margin: 0;
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-weight: 500;
  letter-spacing: -0.045em;
}

.hero h1 {
  font-size: clamp(48px, 5.2vw, 74px);
  line-height: 1.12;
}

.hero-lede {
  max-width: 620px;
  margin: 30px 0 0;
  color: #52615b;
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.primary-link {
  min-width: 155px;
  padding: 15px 20px;
  display: inline-flex;
  justify-content: space-between;
  gap: 20px;
  background: var(--forest);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 5px 5px 0 var(--mint);
}

.secondary-link {
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.hero-graphic {
  position: relative;
  height: 455px;
}

.hero-graphic::before {
  position: absolute;
  content: "";
  inset: 40px 8px 15px 54px;
  border-radius: 50%;
  background: var(--mint);
}

.orbit {
  position: absolute;
  border: 1px dashed rgba(16, 37, 31, 0.28);
  border-radius: 50%;
  transform: rotate(-12deg);
}

.orbit-outer {
  inset: 30px 4px 8px 35px;
}

.orbit-inner {
  inset: 82px 56px 60px 88px;
}

.task-card,
.graphic-center {
  position: absolute;
  display: flex;
  flex-direction: column;
  z-index: 2;
}

.task-card {
  width: 168px;
  min-height: 112px;
  padding: 20px;
  border: 1px solid rgba(16, 37, 31, 0.24);
  background: rgba(255, 254, 249, 0.94);
  box-shadow: 8px 9px 0 rgba(18, 61, 49, 0.09);
}

.task-card small {
  color: var(--coral);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.task-card strong {
  margin-top: auto;
  font-family: Georgia, "Songti SC", serif;
  font-size: 21px;
  font-weight: 500;
}

.card-plan {
  left: 4px;
  top: 68px;
  transform: rotate(-5deg);
}

.card-build {
  right: 0;
  top: 95px;
  transform: rotate(4deg);
}

.card-review {
  left: 120px;
  bottom: 6px;
  transform: rotate(2deg);
}

.graphic-center {
  left: 50%;
  top: 47%;
  align-items: center;
  gap: 9px;
  transform: translate(-50%, -50%);
}

.graphic-center small {
  color: var(--forest-deep);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.section {
  padding: 96px 0;
}

.about {
  border-top: 1px solid var(--line);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.03fr 0.97fr;
  gap: 85px;
}

.about h2 {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.25;
}

.body-copy p,
.filing-heading > p:last-child {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.principles {
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.section-heading h2,
.filing-heading h2 {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: clamp(34px, 3.5vw, 50px);
  font-weight: 500;
}

.section-heading > p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 14px;
}

.card-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card-grid article {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  background: rgba(255, 254, 249, 0.56);
}

.card-index {
  display: block;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  color: var(--coral);
  font-size: 11px;
  font-weight: 800;
}

.card-grid h3 {
  margin: 36px 0 14px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 24px;
  font-weight: 500;
}

.card-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.notice {
  padding: 42px 48px;
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: start;
  gap: 42px;
  background: var(--forest-deep);
  color: var(--white);
  box-shadow: 12px 12px 0 var(--mint);
}

.notice-label {
  padding-top: 7px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--mint);
  font-size: 12px;
  font-weight: 750;
}

.notice h2 {
  margin: 0 0 12px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 28px;
  font-weight: 500;
}

.notice p {
  margin: 0;
  color: rgba(255, 254, 249, 0.73);
  font-size: 14px;
  line-height: 1.9;
}

.filing {
  padding-top: 120px;
}

.filing-heading {
  max-width: 650px;
}

.filing-heading > p:last-child {
  margin-top: 22px;
}

.filing-panel {
  margin-top: 42px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  border: 1px solid var(--line);
  background: rgba(255, 254, 249, 0.66);
}

.filing-list {
  margin: 0;
  padding: 16px 34px;
}

.filing-list div {
  min-height: 72px;
  display: grid;
  grid-template-columns: 140px 1fr;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

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

.filing-list dt {
  color: var(--muted);
  font-size: 13px;
}

.filing-list dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.filing-list a,
.contact-card a,
.footer-links a {
  text-decoration: underline;
  text-decoration-color: rgba(16, 37, 31, 0.3);
  text-underline-offset: 4px;
}

.pending {
  color: #8b5b47;
}

.contact-card {
  padding: 38px;
  background: var(--mint-pale);
}

.contact-card h3 {
  margin: 0 0 26px;
  font-family: Georgia, "Songti SC", serif;
  font-size: 24px;
  font-weight: 500;
  line-height: 1.45;
}

.contact-card > p:not(.section-label) {
  margin: 0 0 15px;
  color: #475b53;
  font-size: 13px;
  line-height: 1.75;
}

.site-footer {
  padding: 38px 0 48px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  border-top: 1px solid var(--line);
}

.site-footer strong {
  font-size: 15px;
}

.site-footer p,
.site-footer a,
.site-footer span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 22px;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-graphic {
    width: min(500px, 100%);
    margin: 0 auto;
  }

  .about-grid,
  .filing-panel {
    grid-template-columns: 1fr;
  }

  .about-grid {
    gap: 38px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card-grid article {
    min-height: 220px;
  }
}

@media (max-width: 640px) {
  .site-header {
    height: 68px;
  }

  nav {
    gap: 16px;
  }

  nav a {
    font-size: 12px;
  }

  nav a:first-child {
    display: none;
  }

  .hero {
    padding-top: 54px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-graphic {
    height: 385px;
    transform: scale(0.95);
  }

  .task-card {
    width: 145px;
  }

  .card-review {
    left: 72px;
  }

  .section {
    padding: 72px 0;
  }

  .section-heading,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .notice {
    padding: 34px 28px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .filing-list {
    padding: 10px 22px;
  }

  .filing-list div {
    padding: 18px 0;
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .contact-card {
    padding: 30px 24px;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}