:root {
  color-scheme: light dark;
  --bg: #f8f7fb;
  --surface: #fff;
  --surface-soft: #f1eef6;
  --text: #1f1b22;
  --muted: #665f6c;
  --outline: #ded7e4;
  --outline-strong: #b8afbf;
  --pink: #d73d83;
  --pink-soft: #ffd8e9;
  --blue: #256cbe;
  --blue-soft: #d7e8ff;
  --primary: #76558f;
  --on-primary: #fff;
  --shadow: 0 24px 70px rgba(72, 45, 82, .12);
  --gradient: linear-gradient(115deg, #b62562 5%, #6f4395 48%, #2268aa 95%);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
svg { display: block; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 20; top: 10px; left: 10px; padding: 10px 16px; border-radius: 12px; background: var(--text); color: var(--bg); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.ambient { position: fixed; z-index: -1; border-radius: 50%; filter: blur(3px); pointer-events: none; opacity: .5; }
.ambient-one { width: 44vw; height: 44vw; min-width: 360px; min-height: 360px; top: -24vw; right: -14vw; background: radial-gradient(circle, rgba(215, 61, 131, .22), transparent 68%); }
.ambient-two { width: 52vw; height: 52vw; min-width: 420px; min-height: 420px; bottom: -34vw; left: -22vw; background: radial-gradient(circle, rgba(37, 108, 190, .2), transparent 68%); }

.site-header,
main,
footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 88px; padding-block: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); font-size: 17px; font-weight: 750; text-decoration: none; letter-spacing: -.02em; }
.brand img { border-radius: 12px; box-shadow: 0 6px 20px rgba(50, 36, 57, .18); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.edition-nav { display: inline-flex; gap: 3px; padding: 3px; border: 1px solid var(--outline); border-radius: 15px; background: var(--surface); }
.edition-nav a { min-height: 32px; padding: 5px 11px; border-radius: 11px; color: var(--muted); font-size: 12px; font-weight: 720; text-decoration: none; }
.edition-nav a:hover { color: var(--text); }
.edition-nav a.active { background: var(--surface-soft); color: var(--text); }
.version-chip { min-height: 34px; padding: 5px 13px; border: 1px solid var(--outline); border-radius: 14px; background: var(--surface); background: color-mix(in srgb, var(--surface) 82%, transparent); color: var(--muted); font-size: 13px; font-weight: 650; }

main { padding-block: 58px 70px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(340px, .78fr); align-items: center; gap: clamp(46px, 7vw, 104px); min-height: 560px; }
.hero-copy { animation: enter .55s cubic-bezier(.2,.7,.2,1) both; }
.edition-label { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 26px; color: var(--muted); font-size: 14px; font-weight: 700; letter-spacing: .04em; }
.edition-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--gradient); box-shadow: 0 0 0 6px color-mix(in srgb, var(--pink-soft) 60%, transparent); }
h1 { margin: 0; font-size: clamp(50px, 7vw, 88px); font-weight: 820; line-height: .98; letter-spacing: -.065em; }
h1 span { display: inline-block; padding: 6px 4px 10px 0; background: var(--gradient); color: transparent; -webkit-background-clip: text; background-clip: text; }
.hero-lead { max-width: 660px; margin: 30px 0 0; color: var(--muted); font-size: clamp(17px, 2vw, 20px); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 10px; padding: 12px 21px; border: 1px solid transparent; border-radius: 18px; font-size: 15px; font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease; }
.button svg { width: 21px; height: 21px; }
.button-primary { background: var(--gradient); color: #fff; box-shadow: 0 12px 28px rgba(100, 65, 150, .24); }
.button-secondary { border-color: var(--outline); background: var(--surface); color: var(--text); }
.button:hover { transform: translateY(-2px); }
.button-primary:hover { box-shadow: 0 15px 34px rgba(100, 65, 150, .32); }
.button-secondary:hover { border-color: var(--outline-strong); background: var(--surface-soft); }
.button:focus-visible,
.brand:focus-visible,
.edition-nav a:focus-visible,
footer a:focus-visible { outline: 3px solid var(--blue); outline: 3px solid color-mix(in srgb, var(--blue) 70%, white); outline-offset: 4px; }
.release-status { min-height: 24px; margin: 15px 0 0; color: var(--muted); font-size: 13px; }

.release-panel { position: relative; overflow: hidden; padding: clamp(24px, 4vw, 36px); border: 1px solid var(--outline); border-radius: 32px; background: var(--surface); background: color-mix(in srgb, var(--surface) 92%, transparent); box-shadow: var(--shadow); animation: enter .55s .08s cubic-bezier(.2,.7,.2,1) both; }
.release-panel::before { position: absolute; width: 190px; height: 190px; top: -105px; right: -65px; border-radius: 50%; background: var(--gradient); content: ""; filter: blur(14px); opacity: .16; }
.panel-topline { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 14px; color: var(--muted); font-size: 13px; font-weight: 650; }
.verified { display: inline-flex; align-items: center; gap: 6px; color: var(--blue); }
.verified svg { width: 18px; height: 18px; }
.release-version { position: relative; display: block; margin-top: 22px; font-size: clamp(38px, 5vw, 56px); line-height: 1; letter-spacing: -.05em; }
.release-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 30px 0 24px; }
.release-facts div { min-width: 0; }
.release-facts dt { color: var(--muted); font-size: 12px; }
.release-facts dd { margin: 4px 0 0; font-size: 14px; font-weight: 720; }
.hash-block { margin-top: 12px; padding: 13px 15px; border-radius: 16px; background: var(--surface-soft); }
.hash-block span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.hash-block code { display: block; overflow-wrap: anywhere; color: var(--text); font: 11px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace; user-select: all; }
.selectable { font: inherit; user-select: all; }
.channel-notice { margin-top: 16px; padding: 17px 18px; border-radius: 18px; background: var(--surface-soft); }
.channel-notice strong { font-size: 14px; }
.channel-notice p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.channel-notice code { user-select: all; }
.max-edition { --gradient: linear-gradient(115deg, #883d78 5%, #634293 48%, #315c91 95%); }
.max-edition::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  background:
    radial-gradient(circle at 82% 22%, color-mix(in srgb, var(--primary) 18%, transparent), transparent 32%),
    radial-gradient(circle at 12% 78%, color-mix(in srgb, var(--blue) 12%, transparent), transparent 34%);
  content: "";
  pointer-events: none;
}
.capability-scene {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid color-mix(in srgb, var(--outline) 74%, var(--primary));
  border-radius: 34px;
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--surface) 96%, var(--pink-soft)), color-mix(in srgb, var(--surface) 90%, var(--blue-soft)));
  box-shadow: 0 30px 90px color-mix(in srgb, var(--primary) 18%, transparent);
  isolation: isolate;
  animation: enter .55s .08s cubic-bezier(.2,.7,.2,1) both;
}
.capability-scene::before {
  position: absolute;
  z-index: -1;
  width: 310px;
  height: 310px;
  top: -175px;
  right: -100px;
  border-radius: 50%;
  background: var(--gradient);
  content: "";
  filter: blur(32px);
  opacity: .2;
}
.scene-topline { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 13px; font-weight: 740; letter-spacing: .02em; }
.scene-viewport { position: relative; height: 348px; margin: 20px -2px 10px; perspective: 880px; transform-style: preserve-3d; }
.scene-grid {
  position: absolute;
  inset: 12% 3% 2%;
  border-radius: 28px;
  background:
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--primary) 15%, transparent) 0 1px, transparent 1px 38px),
    repeating-linear-gradient(0deg, color-mix(in srgb, var(--primary) 15%, transparent) 0 1px, transparent 1px 38px);
  mask-image: linear-gradient(to top, #000 25%, transparent 100%);
  transform: rotateX(64deg) translate3d(0, 40px, -115px);
  transform-origin: center bottom;
}
.scene-ray { position: absolute; z-index: 1; width: 39%; height: 2px; border-radius: 99px; background: linear-gradient(90deg, transparent 0%, color-mix(in srgb, var(--primary) 88%, white) 45%, transparent 100%); background-size: 220% 100%; filter: drop-shadow(0 0 5px color-mix(in srgb, var(--primary) 55%, transparent)); opacity: .6; transform-origin: right center; animation: ray-flow 5.8s ease-in-out infinite; }
.ray-a { top: 23%; left: 15%; transform: rotate(22deg) translateZ(-28px); }
.ray-b { top: 48%; left: 9%; transform: rotate(2deg) translateZ(-12px); animation-delay: .45s; }
.ray-c { top: 68%; left: 14%; transform: rotate(-21deg) translateZ(-18px); animation-delay: .9s; }
.ray-d { top: 78%; left: 28%; width: 25%; transform: rotate(-48deg) translateZ(-2px); animation-delay: 1.35s; }
.source-node {
  position: absolute;
  z-index: 3;
  display: grid;
  min-width: 90px;
  min-height: 48px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--outline) 62%, var(--primary));
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--muted);
  box-shadow: 0 12px 26px rgba(30, 18, 38, .12);
  font-size: 12px;
  font-weight: 740;
  backdrop-filter: blur(12px);
  animation: source-signal 5.8s ease-in-out infinite;
}
.node-directory { top: 9%; left: 2%; transform: translateZ(-32px) rotateY(7deg); }
.node-search { top: 40%; left: -1%; transform: translateZ(-18px) rotateY(7deg); animation-delay: .45s; }
.node-share { top: 66%; left: 6%; transform: translateZ(-8px) rotateY(7deg); animation-delay: .9s; }
.node-custom { top: 81%; left: 31%; transform: translateZ(6px); animation-delay: 1.35s; }
.core-node {
  position: absolute;
  z-index: 4;
  top: 38%;
  left: 48%;
  display: grid;
  width: 118px;
  height: 118px;
  place-content: center;
  gap: 10px;
  border: 1px solid color-mix(in srgb, var(--primary) 55%, white);
  border-radius: 32px;
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 24px 60px color-mix(in srgb, var(--primary) 38%, transparent), inset 0 1px rgba(255,255,255,.28);
  text-align: center;
  transform: translate3d(-50%, -50%, 42px) rotateY(-4deg);
  animation: core-signal 5.8s ease-in-out infinite;
}
.core-node svg { width: 34px; height: 34px; margin-inline: auto; }
.core-node strong { font-size: 13px; letter-spacing: .02em; }
.output-stack { position: absolute; z-index: 3; top: 25%; right: 0; display: grid; gap: 9px; transform: translateZ(24px); }
.output-stack span { min-width: 94px; padding: 9px 12px; border: 1px solid color-mix(in srgb, var(--outline) 70%, var(--blue)); border-radius: 13px; background: color-mix(in srgb, var(--surface) 90%, transparent); color: var(--muted); box-shadow: 0 10px 24px rgba(30, 18, 38, .1); font-size: 12px; font-weight: 720; text-align: center; opacity: .68; animation: capability-out 5.8s ease-in-out infinite; }
.output-stack span:nth-child(1) { animation-delay: 2.7s; }
.output-stack span:nth-child(2) { animation-delay: 2.95s; }
.output-stack span:nth-child(3) { animation-delay: 3.2s; }
.output-stack span:nth-child(4) { animation-delay: 3.45s; }
.scene-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; padding-top: 18px; border-top: 1px solid color-mix(in srgb, var(--outline) 75%, transparent); }
.scene-facts div { min-width: 0; }
.scene-facts dt { color: var(--muted); font-size: 11px; }
.scene-facts dd { margin: 3px 0 0; overflow-wrap: anywhere; font-size: 13px; font-weight: 760; }
.max-edition .feature-card { transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
.max-edition .feature-card:hover { border-color: color-mix(in srgb, var(--primary) 42%, var(--outline)); box-shadow: 0 18px 44px color-mix(in srgb, var(--primary) 12%, transparent); transform: translateY(-4px); }
.private-banner { background: #201c26; }

.feature-grid { display: grid; grid-template-columns: 1.3fr .85fr .85fr; gap: 16px; margin-top: 70px; }
.feature-card { min-height: 250px; padding: 28px; border: 1px solid var(--outline); border-radius: 28px; background: var(--surface); }
.feature-wide { display: grid; grid-template-columns: auto 1fr; align-items: end; gap: 22px; background: var(--surface-soft); background: linear-gradient(145deg, color-mix(in srgb, var(--pink-soft) 38%, var(--surface)), color-mix(in srgb, var(--blue-soft) 38%, var(--surface))); }
.feature-icon { display: grid; width: 52px; height: 52px; place-items: center; border-radius: 18px; background: var(--surface-soft); color: var(--primary); }
.feature-icon svg { width: 27px; height: 27px; }
.feature-card h3 { margin: 54px 0 8px; font-size: 22px; line-height: 1.25; letter-spacing: -.02em; }
.feature-wide h3 { margin-top: 0; }
.feature-card p { margin: 0; color: var(--muted); font-size: 15px; }

.download-banner { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 72px; padding: clamp(28px, 5vw, 54px); border-radius: 34px; background: #211c25; color: #fff; box-shadow: var(--shadow); }
.download-banner .eyebrow { margin: 0 0 8px; color: #d8b8ff; font-size: 13px; font-weight: 760; letter-spacing: .06em; text-transform: uppercase; }
.download-banner h2 { margin: 0; font-size: clamp(27px, 4vw, 43px); line-height: 1.2; letter-spacing: -.04em; }
.download-banner p:not(.eyebrow) { margin: 12px 0 0; color: #d2cbd7; }
.download-banner .button { flex: 0 0 auto; }

footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 26px max(28px, env(safe-area-inset-bottom)); border-top: 1px solid var(--outline); color: var(--muted); font-size: 13px; }
footer p { margin: 0; }
footer nav { display: flex; gap: 20px; }
footer a { text-underline-offset: 4px; }

@keyframes enter { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes source-signal { 0%, 20%, 100% { border-color: color-mix(in srgb, var(--outline) 62%, var(--primary)); color: var(--muted); filter: brightness(1); } 30%, 40% { border-color: var(--primary); color: var(--text); filter: brightness(1.12); } }
@keyframes ray-flow { 0%, 16%, 100% { background-position: 120% 0; opacity: .25; } 34%, 56% { background-position: -80% 0; opacity: .85; } }
@keyframes core-signal { 0%, 36%, 100% { box-shadow: 0 24px 60px color-mix(in srgb, var(--primary) 32%, transparent), inset 0 1px rgba(255,255,255,.28); } 46%, 62% { box-shadow: 0 28px 78px color-mix(in srgb, var(--primary) 58%, transparent), 0 0 0 10px color-mix(in srgb, var(--primary) 10%, transparent), inset 0 1px rgba(255,255,255,.34); } }
@keyframes capability-out { 0%, 47%, 100% { opacity: .58; transform: translateX(0); } 57%, 72% { opacity: 1; transform: translateX(4px); color: var(--text); border-color: color-mix(in srgb, var(--blue) 65%, var(--outline)); } }

@media (max-width: 900px) {
  main { padding-top: 30px; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .release-panel, .capability-scene { width: min(100%, 680px); justify-self: center; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-wide { grid-column: 1 / -1; min-height: 220px; }
}

@media (max-width: 620px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 72px; padding-block: 12px; }
  .header-actions { gap: 6px; }
  .edition-nav a { padding-inline: 8px; }
  .version-chip { display: none; }
  .brand img { width: 34px; height: 34px; border-radius: 11px; }
  main { padding-block: 38px 52px; }
  .hero { gap: 40px; }
  h1 { font-size: clamp(48px, 15vw, 66px); }
  .hero-lead { margin-top: 22px; font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .release-panel { border-radius: 26px; }
  .capability-scene { min-height: 480px; padding: 20px; border-radius: 28px; }
  .scene-viewport { height: 315px; margin-inline: -9px; }
  .source-node { min-width: 74px; min-height: 42px; border-radius: 14px; font-size: 10px; }
  .core-node { width: 98px; height: 98px; border-radius: 26px; }
  .core-node svg { width: 29px; height: 29px; }
  .output-stack { right: -3px; gap: 7px; }
  .output-stack span { min-width: 77px; padding: 7px 8px; font-size: 10px; }
  .scene-facts { gap: 4px; }
  .scene-facts dd { font-size: 11px; }
  .release-facts { grid-template-columns: 1fr 1fr; }
  .release-facts div:last-child { grid-column: 1 / -1; }
  .feature-grid { grid-template-columns: 1fr; margin-top: 54px; }
  .feature-wide { grid-column: auto; grid-template-columns: 1fr; align-items: start; min-height: 260px; }
  .feature-card { min-height: 230px; border-radius: 24px; }
  .feature-card h3 { margin-top: 42px; }
  .feature-wide h3 { margin-top: 26px; }
  .download-banner { align-items: flex-start; flex-direction: column; border-radius: 26px; margin-top: 54px; }
  footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #19171c;
    --surface: #211e25;
    --surface-soft: #29252d;
    --text: #f1ebf3;
    --muted: #c9c0ce;
    --outline: #4e4854;
    --outline-strong: #746c7b;
    --pink: #ff86b9;
    --pink-soft: #5d2440;
    --blue: #8ec3ff;
    --blue-soft: #173c64;
    --primary: #d4b4ff;
    --on-primary: #2d1740;
    --shadow: 0 24px 80px rgba(0, 0, 0, .28);
    --gradient: linear-gradient(115deg, #ff81b6 5%, #c5a0ff 48%, #78b9ff 95%);
  }
  .version-chip { background: color-mix(in srgb, var(--surface) 88%, transparent); }
  .release-panel { background: color-mix(in srgb, var(--surface) 95%, transparent); }
  .button-primary { color: #21141e; }
  .download-banner { background: #242027; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .button:hover { transform: none; }
  .source-node, .scene-ray, .core-node, .output-stack span { animation: none !important; }
  .max-edition .feature-card:hover { transform: none; }
}