:root {
  color: #13151a;
  background: #f3f1e8;
  font-family:
    "Microsoft YaHei UI",
    "PingFang SC",
    "Segoe UI",
    sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #13151a;
  --night: #111419;
  --paper: #f8f5ea;
  --paper-strong: #fffdf4;
  --mint: #63d0ad;
  --sky: #9fd9ff;
  --coral: #ff6847;
  --gold: #ffd35a;
  --muted: #666a5f;
  --line: rgba(19, 21, 26, 0.14);
  --shadow: 0 28px 90px rgba(16, 20, 24, 0.26);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
}

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

img,
svg {
  display: block;
}

.hero {
  position: relative;
  min-height: clamp(720px, 92vh, 920px);
  overflow: hidden;
  color: #f8fff8;
  background: var(--night);
}

.hero-scene {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.scene-grid {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(248, 255, 248, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(248, 255, 248, 0.12) 1px, transparent 1px);
  background-size: 44px 44px;
}

.hero-scene::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 18%, rgba(99, 208, 173, 0.26), transparent 24%),
    linear-gradient(116deg, transparent 0 53%, rgba(255, 104, 71, 0.2) 53% 61%, transparent 61%),
    linear-gradient(0deg, rgba(17, 20, 25, 0.12), rgba(17, 20, 25, 0.88));
}

.desktop-preview {
  position: absolute;
  right: clamp(-160px, 2vw, 70px);
  bottom: clamp(36px, 8vh, 100px);
  width: min(48vw, 660px);
  min-width: 460px;
  border: 1px solid rgba(248, 255, 248, 0.18);
  border-radius: 18px;
  overflow: hidden;
  background: rgba(248, 245, 234, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  transform: rotate(-2deg);
}

.preview-topbar {
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(248, 255, 248, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.preview-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
}

.preview-topbar span:nth-child(2) {
  background: var(--gold);
}

.preview-topbar span:nth-child(3) {
  background: var(--mint);
}

.preview-body {
  position: relative;
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(180px, 0.72fr);
  grid-template-rows: auto auto;
  align-items: stretch;
  gap: 22px 26px;
  min-height: 430px;
  padding: 42px 36px 36px;
}

.pet-window {
  position: relative;
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  justify-self: center;
  width: min(100%, 230px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(248, 255, 248, 0.32);
  border-radius: 18px;
  animation: float 5.2s ease-in-out infinite;
}

.pet-window img {
  width: 66%;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.46));
  transform: translate(var(--tilt-x, 0), var(--tilt-y, 0));
  transition: transform 160ms ease-out;
}

.settings-panel,
.tray-menu {
  width: 100%;
  padding: 18px;
  border: 1px solid rgba(248, 255, 248, 0.2);
  border-radius: 14px;
  background: rgba(17, 20, 25, 0.76);
}

.settings-panel {
  grid-column: 1;
  grid-row: 1;
}

.tray-menu {
  grid-column: 1;
  grid-row: 2;
}

.settings-panel span,
.tray-menu span,
.eyebrow,
.section-heading p,
.codex-copy p:first-child,
.download-copy p:first-child {
  color: var(--coral);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.settings-panel strong,
.tray-menu strong {
  display: block;
  margin-top: 10px;
  color: #f8fff8;
  font-size: clamp(18px, 2vw, 27px);
  line-height: 1.12;
}

.tray-menu strong {
  margin-top: 8px;
  font-size: clamp(20px, 2.1vw, 30px);
}

.settings-panel small {
  display: inline-flex;
  margin-top: 10px;
  padding: 6px 9px;
  border-radius: 8px;
  color: #16231d;
  background: var(--mint);
  font-weight: 900;
}

.settings-panel i {
  display: block;
  width: 76%;
  height: 8px;
  margin-top: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold), var(--mint));
}

.nav {
  position: relative;
  z-index: 2;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 22px clamp(20px, 5.8vw, 82px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 16px;
  font-weight: 950;
}

.brand img {
  width: 38px;
  height: 38px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  color: rgba(248, 255, 248, 0.76);
  font-size: 14px;
  font-weight: 800;
}

.github-button,
.github-action {
  gap: 8px;
}

.github-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border: 1px solid rgba(248, 255, 248, 0.36);
  border-radius: 8px;
  color: #f8fff8;
  background: rgba(248, 255, 248, 0.08);
}

.github-button svg,
.github-action svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: currentColor;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(800px, calc(100% - 40px));
  padding: clamp(78px, 13vh, 150px) 0 72px clamp(20px, 5.8vw, 82px);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 820px;
  margin-top: 14px;
  font-size: clamp(44px, 5.8vw, 82px);
  line-height: 1;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 span {
  display: block;
}

.lede {
  max-width: 690px;
  margin-top: 26px;
  color: rgba(248, 255, 248, 0.82);
  font-size: clamp(17px, 1.7vw, 23px);
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.hero-actions,
.repo-badges,
.hero-tags,
.codex-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.hero-actions {
  margin-top: 34px;
}

.primary-action,
.secondary-action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 21px;
  border-radius: 9px;
  font-weight: 950;
}

.primary-action {
  color: #181713;
  background: var(--gold);
}

.secondary-action {
  color: #f8fff8;
  border: 1px solid rgba(248, 255, 248, 0.42);
}

.secondary-action.dark {
  color: var(--ink);
  border-color: rgba(19, 21, 26, 0.34);
}

.repo-badges {
  margin-top: 18px;
}

.repo-pill {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  border: 1px solid rgba(248, 255, 248, 0.28);
  border-radius: 7px;
  color: #f8fff8;
  background: rgba(248, 255, 248, 0.07);
  font-size: 12px;
  font-weight: 900;
}

.repo-pill span,
.repo-pill strong {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
}

.repo-pill span {
  color: var(--ink);
  background: #f8fff8;
}

.repo-pill strong {
  color: #f8fff8;
}

.repo-pill:nth-child(2) strong {
  color: var(--ink);
  background: var(--sky);
}

.repo-pill:nth-child(3) strong {
  color: var(--ink);
  background: var(--mint);
}

.hero-tags {
  margin-top: 22px;
  max-width: 680px;
}

.hero-tags span {
  min-height: 31px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(248, 255, 248, 0.2);
  border-radius: 999px;
  color: rgba(248, 255, 248, 0.78);
  background: rgba(248, 255, 248, 0.08);
  font-size: 13px;
  font-weight: 800;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 18px clamp(20px, 5.8vw, 82px);
  background: #ece8dc;
}

.quick-links a {
  position: relative;
  min-height: 186px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid rgba(19, 21, 26, 0.18);
  border-radius: 10px;
  box-shadow: 0 14px 34px rgba(19, 21, 26, 0.08);
  background: #fdf9ec;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.quick-links a::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 18px;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(19, 21, 26, 0.22);
  border-radius: 50%;
  background:
    linear-gradient(45deg, transparent 46%, var(--ink) 48% 54%, transparent 56%),
    linear-gradient(90deg, transparent 38%, var(--ink) 40% 68%, transparent 70%);
  background-size: 14px 14px, 14px 14px;
  background-position: center;
  background-repeat: no-repeat;
}

.quick-links a:hover,
.quick-links a:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(255, 104, 71, 0.5);
  box-shadow: 0 22px 48px rgba(19, 21, 26, 0.14);
}

.quick-links span {
  color: var(--coral);
  font-size: 13px;
  font-weight: 950;
}

.quick-links strong {
  display: block;
  max-width: 360px;
  margin-top: 14px;
  padding-right: 34px;
  font-size: clamp(24px, 2.2vw, 32px);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.quick-links p {
  max-width: 360px;
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.quick-links em {
  margin-top: auto;
  color: var(--ink);
  font-style: normal;
  font-weight: 950;
}

.feature-band,
.codex-band,
.download-band {
  padding: clamp(62px, 9vw, 118px) clamp(20px, 5.8vw, 82px);
}

.feature-band {
  background: var(--paper);
}

.section-heading {
  max-width: 820px;
}

h2 {
  margin-top: 12px;
  font-size: clamp(32px, 5vw, 70px);
  line-height: 1.05;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 44px;
}

.feature-grid article {
  min-height: 246px;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-strong);
}

.feature-grid span {
  color: var(--coral);
  font-weight: 950;
}

h3 {
  margin-top: 48px;
  font-size: 24px;
  line-height: 1.15;
}

.feature-grid p,
.codex-copy p:last-of-type,
.download-copy p {
  margin-top: 13px;
  color: var(--muted);
  line-height: 1.74;
}

.codex-band {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.78fr);
  gap: clamp(26px, 6vw, 84px);
  align-items: center;
  background: #dcefe5;
}

.codex-copy {
  max-width: 780px;
}

.codex-actions {
  margin-top: 28px;
}

.contract-table {
  border: 1px solid rgba(19, 21, 26, 0.2);
  border-radius: 10px;
  overflow: hidden;
  background: #fffdf4;
  box-shadow: 0 22px 56px rgba(73, 106, 87, 0.14);
}

.contract-table div {
  display: grid;
  grid-template-columns: 0.86fr 1fr 1.1fr;
}

.contract-table span,
.contract-table strong {
  padding: 17px 16px;
  border-bottom: 1px solid rgba(19, 21, 26, 0.12);
  font-size: 15px;
}

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

.download-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: #f8fff8;
  background: var(--night);
}

.download-copy {
  max-width: 780px;
}

.download-actions {
  justify-content: flex-end;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -16px, 0);
  }
}

@media (max-width: 1040px) {
  .desktop-preview {
    right: -240px;
    opacity: 0.72;
  }

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

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .desktop-preview {
    display: none;
  }

  .quick-links,
  .codex-band {
    grid-template-columns: 1fr;
  }

  .download-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .download-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .brand span {
    max-width: 220px;
  }

  .nav-links,
  .github-button,
  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .nav-links {
    gap: 10px;
  }

  .github-button,
  .primary-action,
  .secondary-action {
    justify-content: center;
  }

  h1 {
    font-size: 35px;
  }

  .hero-copy {
    width: calc(100vw - 54px);
    max-width: calc(100vw - 54px);
    margin-right: 27px;
    margin-left: 27px;
    padding-right: 0;
    padding-left: 0;
  }

  .lede {
    max-width: 100%;
    font-size: 16px;
    line-height: 1.68;
    word-break: break-all;
  }

  .hero-actions,
  .repo-badges,
  .hero-tags {
    width: 100%;
    max-width: 100%;
  }

  .repo-pill {
    max-width: 100%;
  }

  .repo-pill strong {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .quick-links {
    padding-right: 16px;
    padding-left: 16px;
  }

  .quick-links a {
    min-height: 174px;
    padding: 22px;
  }

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

  .contract-table span,
  .contract-table strong {
    padding: 12px 9px;
    font-size: 13px;
  }
}