:root {
  color-scheme: dark;
  --ink: #e8e7e1;
  --muted: #9d9b94;
  --line: rgba(240, 240, 232, .16);
  --paper: #deddd5;
  --accent: #d8ff3e;
  --black: #10110f;
  --glass: rgba(26, 28, 24, .54);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--black); color: var(--ink); font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.45; }
a { color: inherit; text-decoration: none; }

.site-header { position: sticky; top: 0; z-index: 10; height: 76px; padding: 0 4.2vw; border-bottom: 1px solid var(--line); background: rgba(16, 17, 15, .62); backdrop-filter: blur(18px) saturate(125%); -webkit-backdrop-filter: blur(18px) saturate(125%); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 750; letter-spacing: .045em; }
.wordmark-icon { width: 30px; height: 30px; border-radius: 8px; object-fit: cover; box-shadow: 0 7px 20px rgba(216, 255, 62, .12); }
nav { display: flex; gap: 26px; color: var(--muted); font-size: 13px; }
nav a { transition: color .2s ease; }
nav a:hover { color: var(--ink); }
.header-action { padding: 5px 0; border-bottom: 1px solid var(--ink); font-size: 13px; transition: color .2s ease, border-color .2s ease; }
.header-action:hover { color: var(--accent); border-color: var(--accent); }

.hero { position: relative; isolation: isolate; overflow: hidden; min-height: calc(100vh - 76px); padding: 7.2vh 4.2vw; border-bottom: 1px solid var(--line); display: flex; align-items: center; background: radial-gradient(ellipse at 70% 14%, #2d3325 0, transparent 36%), var(--black); }
.hero::before, .hero::after { content: ""; position: absolute; z-index: -1; pointer-events: none; border-radius: 999px; filter: blur(8px); opacity: .55; }
.hero::before { width: 40vw; height: 40vw; top: -18vw; right: -15vw; background: radial-gradient(circle, rgba(216, 255, 62, .18), transparent 67%); animation: drift-light 15s ease-in-out infinite alternate; }
.hero::after { width: 34vw; height: 34vw; bottom: -24vw; left: 37vw; background: radial-gradient(circle, rgba(106, 139, 255, .14), transparent 70%); animation: drift-light 19s ease-in-out infinite alternate-reverse; }
.hero-layout { width: min(1080px, 100%); margin: 0 auto; }
.hero-copy { display: grid; gap: 30px; justify-items: start; }
.hero-meta, .section-label { color: var(--muted); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.hero-meta { width: max-content; max-width: 100%; padding: 7px 10px; border: 1px solid rgba(232, 231, 225, .12); border-radius: 99px; background: var(--glass); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.signal { width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; display: inline-block; background: var(--accent); box-shadow: 0 0 18px rgba(216, 255, 62, .8); animation: pulse-signal 2.6s ease-in-out infinite; }
.hero h1 { max-width: 12ch; margin: 0; color: var(--ink); font-size: clamp(46px, 5.7vw, 82px); font-weight: 700; line-height: 1.04; letter-spacing: -.07em; text-wrap: balance; animation: hero-arrive .85s cubic-bezier(.2, .8, .2, 1) both; }
.hero-emphasis { display: block; font: inherit; font-style: normal; font-weight: 500; letter-spacing: -.085em; color: var(--accent); text-shadow: 0 0 38px rgba(216, 255, 62, .12); }
.hero-bottom { width: min(760px, 100%); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px; margin-top: 16px; }
.hero-bottom p { max-width: 410px; margin: 0; color: var(--muted); font-size: 16px; }
.primary-action { min-width: 206px; padding: 15px 18px; display: inline-flex; align-items: center; justify-content: space-between; gap: 42px; background: var(--accent); color: #10110f; font-size: 14px; font-weight: 750; transition: transform .25s ease, background .25s ease, box-shadow .25s ease; }
.primary-action:hover { background: #eeff9f; transform: translateY(-3px); box-shadow: 0 14px 32px rgba(216, 255, 62, .17); }

.workflow, .capability, .download { padding: 135px 4.2vw; border-bottom: 1px solid var(--line); }
.workflow, .capability, .studio-callout, .download { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.workflow.is-visible, .capability.is-visible, .studio-callout.is-visible, .download.is-visible { opacity: 1; transform: none; }
.workflow-head { display: flex; align-items: baseline; justify-content: space-between; gap: 48px; margin: 38px 0 72px; }
.workflow h2, .capability h2, .studio-callout h2, .download h2 { margin: 0; font-size: clamp(40px, 5.2vw, 82px); font-weight: 650; line-height: .98; letter-spacing: -.065em; }
.workflow-head p, .download p { max-width: 290px; color: var(--muted); font-size: 14px; }
.stage-grid { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); background: linear-gradient(140deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, 0)); }
.stage-grid li { min-height: 190px; padding: 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; transition: background .25s ease; }
.stage-grid li:hover { background: rgba(232, 231, 225, .055); }
.stage-grid li:nth-child(3n) { border-right: 0; }
.stage-grid span, .capability article > span { color: var(--accent); font: 600 12px/1 ui-monospace, monospace; }
.stage-grid strong { font-size: 20px; font-weight: 600; }
.stage-grid p { max-width: 180px; margin: 0; color: var(--muted); font-size: 13px; }

.capability { background: var(--paper); color: var(--black); }
.capability .section-label { color: #6c6c66; }
.capability h2 { max-width: 740px; margin-top: 38px; }
.capability-grid { margin-top: 98px; border-top: 1px solid #b7b6ad; display: grid; grid-template-columns: repeat(3, 1fr); }
.capability article { min-height: 232px; padding: 22px 28px 4px 0; border-right: 1px solid #b7b6ad; }
.capability article + article { padding-left: 28px; }
.capability article:last-child { border-right: 0; }
.capability article > span { color: #305f4d; }
.capability h3 { margin: 52px 0 13px; font-size: 21px; }
.capability article p { max-width: 260px; color: #53544d; font-size: 14px; }

.studio-callout { min-height: 470px; padding: 132px 4.2vw; display: flex; align-items: flex-end; justify-content: space-between; gap: 42px; background: linear-gradient(135deg, #20251a, #10110f 62%); }
.studio-callout h2 { margin-top: 36px; }
.light { background: var(--ink); }
.download { display: flex; justify-content: space-between; gap: 64px; background: #10110f; }
.download h2 { margin: 34px 0 22px; }
.download-list { width: min(510px, 100%); border-top: 1px solid var(--line); }
.download-item { padding: 22px 0; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.download-item small { display: block; margin-top: 4px; color: var(--muted); }
.download-item a { color: var(--accent); font-size: 13px; white-space: nowrap; }
.download-status { padding-top: 22px; color: var(--muted); font-size: 14px; }
footer { padding: 25px 4.2vw; display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }

@keyframes drift-light { to { transform: translate3d(-5vw, 7vw, 0) scale(1.08); } }
@keyframes hero-arrive { from { opacity: 0; transform: translateY(18px); letter-spacing: -.07em; } to { opacity: 1; transform: none; } }
@keyframes pulse-signal { 50% { transform: scale(1.3); box-shadow: 0 0 25px rgba(216, 255, 62, .95); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .workflow, .capability, .studio-callout, .download { opacity: 1; transform: none; }
}

@media (max-width: 760px) {
  .site-header { height: 64px; padding: 0 20px; }
  .site-header nav { display: none; }
  .hero, .workflow, .capability, .download { padding: 82px 20px; }
  .hero { min-height: auto; align-items: stretch; }
  .hero h1 { max-width: 11ch; font-size: clamp(46px, 13.5vw, 70px); }
  .hero-bottom, .workflow-head, .studio-callout, .download { display: flex; flex-direction: column; align-items: flex-start; }
  .hero-bottom { margin-top: 48px; }
  .stage-grid, .capability-grid { grid-template-columns: 1fr; }
  .stage-grid li, .stage-grid li:nth-child(3n) { min-height: 132px; border-right: 0; }
  .capability article, .capability article + article { min-height: 0; padding: 20px 0; border-right: 0; border-bottom: 1px solid #b7b6ad; }
  .capability h3 { margin: 28px 0 10px; }
  .capability-grid { margin-top: 62px; }
  .studio-callout { min-height: 440px; padding: 90px 20px; }
  .download { gap: 44px; }
  .download-list { width: 100%; }
}