:root {
  color-scheme: dark;
  --ink: #07100b;
  --ink-soft: #0b1710;
  --paper: #edf3ea;
  --muted: #9ba99f;
  --line: rgba(207, 226, 211, 0.17);
  --line-strong: rgba(207, 226, 211, 0.34);
  --acid: #caff3d;
  --moss: #819d64;
  --pointer-x: 72vw;
  --pointer-y: 24vh;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--ink);
  color: var(--paper);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  overflow-x: hidden;
  background: var(--ink);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(151, 181, 157, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 181, 157, 0.045) 1px, transparent 1px),
    var(--ink);
  background-size: 72px 72px;
  color: var(--paper);
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-180%);
  background: var(--acid);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.garden {
  position: fixed;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.garden__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle 420px at var(--pointer-x) var(--pointer-y), rgba(119, 167, 95, 0.13), transparent 72%);
  transition: background 160ms linear;
}

.garden__branches {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.2;
}

.garden__branches path,
.garden__branches circle {
  fill: none;
  stroke: var(--moss);
  stroke-width: 1.25;
  stroke-dasharray: 8 14;
  vector-effect: non-scaling-stroke;
  animation: branch-flow 18s linear infinite;
}

.garden__branches circle {
  fill: var(--ink);
  stroke-dasharray: none;
}

.garden__grain {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 112px;
  padding: 24px clamp(24px, 5vw, 80px);
  border-bottom: 1px solid var(--line);
  animation: reveal-down 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--line-strong);
  transform: rotate(45deg);
  transition: border-color 250ms ease, transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.brand:hover .brand__mark {
  border-color: var(--acid);
  transform: rotate(135deg);
}

.brand__mark svg {
  width: 34px;
  height: 34px;
  transform: rotate(-45deg);
  transition: transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.brand:hover .brand__mark svg {
  transform: rotate(-135deg);
}

.brand__mark path {
  fill: none;
  stroke: var(--acid);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: "Songti SC", STSong, "Noto Serif CJK SC", serif;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand small,
.site-header__meta,
.eyebrow,
.entrance-card__label,
.site-footer {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  letter-spacing: 0.16em;
}

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
}

.site-header__meta {
  display: flex;
  gap: 28px;
  color: var(--muted);
  font-size: 10px;
}

.status-dot::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 14px rgba(202, 255, 61, 0.65);
  content: "";
  animation: breathe 2.8s ease-in-out infinite;
}

.hero {
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(70px, 0.32fr) minmax(0, 1.7fr) minmax(210px, 0.58fr);
  align-items: center;
  min-height: min(680px, calc(100vh - 112px));
  padding: clamp(54px, 8vw, 120px) clamp(24px, 5vw, 80px);
  border-bottom: 1px solid var(--line);
}

.hero__index {
  align-self: start;
  padding-top: 21px;
  color: var(--acid);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  writing-mode: vertical-rl;
  animation: reveal-up 650ms 100ms ease both;
}

.eyebrow {
  margin: 0 0 26px;
  color: var(--acid);
  font-size: 11px;
  font-weight: 700;
}

.hero__copy {
  max-width: 930px;
}

.hero h1 {
  max-width: 960px;
  margin: 0;
  font-family: "Songti SC", STSong, "Noto Serif CJK SC", serif;
  font-size: clamp(52px, 7.4vw, 116px);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.055em;
  text-wrap: balance;
  animation: reveal-up 850ms 120ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.hero h1 span {
  position: relative;
  display: inline-block;
  color: var(--acid);
}

.hero h1 span::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0.04em;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--acid);
  content: "";
  animation: grow-line 900ms 800ms ease forwards;
}

.hero__lead {
  max-width: 590px;
  margin: 38px 0 0;
  color: var(--muted);
  font-family: "Songti SC", STSong, serif;
  font-size: clamp(16px, 1.4vw, 21px);
  line-height: 1.9;
  animation: reveal-up 700ms 340ms ease both;
}

.growth-ring {
  position: relative;
  display: grid;
  width: clamp(180px, 20vw, 300px);
  aspect-ratio: 1;
  place-items: center;
  justify-self: end;
  animation: reveal-scale 1s 280ms ease both;
}

.growth-ring span {
  position: absolute;
  inset: calc(var(--ring) * 12%);
  border: 1px solid rgba(129, 157, 100, calc(0.48 - var(--ring) * 0.07));
  border-radius: 44% 56% 47% 53% / 57% 44% 56% 43%;
  transform: rotate(calc(var(--ring) * 19deg));
  animation: slow-spin calc(18s + var(--ring) * 4s) linear infinite;
}

.growth-ring span:nth-child(1) { --ring: 0; }
.growth-ring span:nth-child(2) { --ring: 1; }
.growth-ring span:nth-child(3) { --ring: 2; }
.growth-ring span:nth-child(4) { --ring: 3; }

.growth-ring b {
  color: var(--acid);
  font-family: "Songti SC", STSong, serif;
  font-size: 40px;
  font-weight: 400;
}

.entrances {
  padding: clamp(72px, 9vw, 132px) clamp(24px, 5vw, 80px) clamp(90px, 11vw, 160px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(320px, 1.2fr) minmax(260px, 0.8fr);
  align-items: end;
  gap: 28px;
  margin-bottom: 52px;
}

.section-heading .eyebrow {
  margin: 0;
}

.section-heading h2 {
  margin: 0;
  font-family: "Songti SC", STSong, serif;
  font-size: clamp(36px, 4vw, 64px);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.section-heading > p:last-child {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.entrance-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.entrance-card {
  position: relative;
  display: grid;
  min-height: 470px;
  padding: clamp(28px, 3vw, 46px);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: rgba(9, 21, 14, 0.72);
  text-decoration: none;
  isolation: isolate;
  transition: border-color 250ms ease, transform 350ms cubic-bezier(0.2, 0.8, 0.2, 1), background 250ms ease;
}

.entrance-card::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  transform: scaleY(0);
  transform-origin: bottom;
  background: var(--paper);
  content: "";
  transition: transform 450ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.entrance-card:hover,
.entrance-card:focus-visible {
  border-color: var(--paper);
  transform: translateY(-6px);
  color: var(--ink);
  outline: none;
}

.entrance-card:hover::before,
.entrance-card:focus-visible::before {
  transform: scaleY(1);
}

.entrance-card__number {
  position: absolute;
  top: clamp(28px, 3vw, 46px);
  right: clamp(28px, 3vw, 46px);
  color: var(--acid);
  font-family: "Songti SC", STSong, serif;
  font-size: clamp(50px, 6vw, 92px);
  line-height: 0.8;
  transition: color 250ms ease;
}

.entrance-card:hover .entrance-card__number,
.entrance-card:focus-visible .entrance-card__number {
  color: #59751c;
}

.entrance-card__label {
  align-self: start;
  color: var(--muted);
  font-size: 10px;
}

.entrance-card__body {
  align-self: end;
  max-width: 590px;
}

.entrance-card__body strong,
.entrance-card__body > span {
  display: block;
}

.entrance-card__body strong {
  margin-bottom: 18px;
  font-family: "Songti SC", STSong, serif;
  font-size: clamp(34px, 3.7vw, 58px);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.entrance-card__body > span {
  max-width: 500px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  transition: color 250ms ease;
}

.entrance-card:hover .entrance-card__body > span,
.entrance-card:focus-visible .entrance-card__body > span,
.entrance-card:hover .entrance-card__label,
.entrance-card:focus-visible .entrance-card__label {
  color: #536056;
}

.entrance-card__action {
  display: flex;
  align-items: center;
  align-self: end;
  gap: 10px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.entrance-card__action > i {
  margin-left: auto;
  color: var(--acid);
  font-size: 22px;
  font-style: normal;
  transition: color 250ms ease, transform 250ms ease;
}

.entrance-card:hover .entrance-card__action,
.entrance-card:focus-visible .entrance-card__action {
  border-color: rgba(7, 16, 11, 0.18);
}

.entrance-card:hover .entrance-card__action > i,
.entrance-card:focus-visible .entrance-card__action > i {
  color: #456014;
  transform: translate(4px, -4px);
}

.entrance-card__visual {
  position: absolute;
  top: 28%;
  right: 10%;
  width: 160px;
  height: 130px;
  opacity: 0.32;
  transition: opacity 250ms ease, transform 500ms ease;
}

.entrance-card:hover .entrance-card__visual,
.entrance-card:focus-visible .entrance-card__visual {
  opacity: 0.7;
  transform: rotate(8deg) scale(1.08);
}

.entrance-card__visual--leaves::before {
  position: absolute;
  top: 5px;
  left: 50%;
  width: 1px;
  height: 120px;
  transform: rotate(28deg);
  background: var(--moss);
  content: "";
}

.entrance-card__visual--leaves i {
  position: absolute;
  width: 54px;
  height: 28px;
  border: 1px solid var(--moss);
  border-radius: 100% 0 100% 0;
}

.entrance-card__visual--leaves i:nth-child(1) { top: 8px; left: 34px; transform: rotate(18deg); }
.entrance-card__visual--leaves i:nth-child(2) { top: 38px; right: 18px; transform: rotate(118deg); }
.entrance-card__visual--leaves i:nth-child(3) { top: 68px; left: 22px; transform: rotate(8deg); }
.entrance-card__visual--leaves i:nth-child(4) { top: 94px; right: 28px; transform: rotate(132deg); }

.entrance-card__visual--rings {
  display: grid;
  place-items: center;
}

.entrance-card__visual--rings i {
  position: absolute;
  width: calc(100% - var(--i) * 38px);
  height: calc(100% - var(--i) * 26px);
  border: 1px solid var(--moss);
  border-radius: 48% 52% 45% 55% / 56% 43% 57% 44%;
  transform: rotate(calc(var(--i) * 20deg));
}

.entrance-card__visual--rings i:nth-child(1) { --i: 0; }
.entrance-card__visual--rings i:nth-child(2) { --i: 1; }
.entrance-card__visual--rings i:nth-child(3) { --i: 2; }

.lock {
  position: relative;
  width: 12px;
  height: 10px;
  border: 1px solid currentColor;
}

.lock::before {
  position: absolute;
  top: -7px;
  left: 2px;
  width: 6px;
  height: 7px;
  border: 1px solid currentColor;
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
  content: "";
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 28px clamp(24px, 5vw, 80px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
}

.site-footer p {
  margin: 0;
}

.site-footer span {
  color: var(--acid);
}

@keyframes reveal-down {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(34px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes reveal-scale {
  from { opacity: 0; transform: scale(0.82) rotate(-8deg); }
  to { opacity: 1; transform: scale(1) rotate(0); }
}

@keyframes grow-line {
  to { transform: scaleX(1); }
}

@keyframes breathe {
  50% { opacity: 0.4; box-shadow: 0 0 4px rgba(202, 255, 61, 0.25); }
}

@keyframes slow-spin {
  to { transform: rotate(360deg); }
}

@keyframes branch-flow {
  to { stroke-dashoffset: -220; }
}

@media (max-width: 980px) {
  body {
    background-size: 56px 56px;
  }

  .hero {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .growth-ring {
    position: absolute;
    z-index: -1;
    right: -70px;
    bottom: -40px;
    width: 260px;
    opacity: 0.55;
  }

  .section-heading {
    grid-template-columns: 1fr 1.5fr;
  }

  .section-heading > p:last-child {
    grid-column: 2;
  }

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

  .entrance-card {
    min-height: 420px;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 88px;
    padding: 18px 20px;
  }

  .brand {
    gap: 12px;
  }

  .brand__mark {
    width: 46px;
    height: 46px;
  }

  .brand__mark svg {
    width: 28px;
    height: 28px;
  }

  .brand strong {
    font-size: 19px;
  }

  .brand small {
    font-size: 8px;
  }

  .site-header__meta {
    display: none;
  }

  .hero {
    display: block;
    min-height: calc(100svh - 88px);
    padding: 74px 20px 82px;
  }

  .hero__index {
    display: none;
  }

  .hero h1 {
    font-size: clamp(47px, 14vw, 68px);
    line-height: 1.1;
  }

  .hero h1 br {
    display: none;
  }

  .hero__lead {
    margin-top: 32px;
    font-size: 15px;
  }

  .growth-ring {
    right: -110px;
    bottom: -48px;
    width: 280px;
  }

  .entrances {
    padding: 76px 20px 90px;
  }

  .section-heading {
    display: block;
    margin-bottom: 34px;
  }

  .section-heading h2 {
    margin-bottom: 18px;
    font-size: 40px;
  }

  .section-heading .eyebrow {
    margin-bottom: 18px;
  }

  .entrance-card {
    min-height: 390px;
    padding: 26px;
  }

  .entrance-card__number {
    top: 28px;
    right: 24px;
    font-size: 54px;
  }

  .entrance-card__body strong {
    font-size: 36px;
  }

  .entrance-card__visual {
    top: 26%;
    right: 2%;
    transform: scale(0.8);
  }

  .entrance-card__action {
    font-size: 10px;
  }

  .site-footer {
    display: block;
    padding: 24px 20px;
  }

  .site-footer p + p {
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}