:root {
  color-scheme: light;
  /* 与小程序 frontend/src/styles/tokens.scss 同源。改配色请两边一起改，
     否则用户从官网点进小程序会看到色温跳变。 */
  --ink: #181613;
  --ink-soft: #605d5a;
  --paper: #f2f0ed;
  --paper-bright: #fbfaf8;
  --line: rgba(24, 22, 19, 0.11);
  --night: #0d0c0a;
  --night-soft: #22201e;
  /* 青瓷。--lime 用在深色区，--lime-strong 是浅底上的文字级深青瓷（4.93:1）。 */
  --lime: #67d5b5;
  --lime-strong: #00765c;
  --blue: #8bb2e5;
  --white: #f5f3f1;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --shadow-small: 0 14px 40px rgba(20, 18, 15, 0.1);
  --shadow-large: 0 32px 100px rgba(8, 7, 6, 0.22);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  content: "";
  opacity: 0.025;
  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='.7'/%3E%3C/svg%3E");
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--lime);
  color: var(--night);
  transform: translateY(-160%);
  transition: transform 160ms var(--ease-out);
}

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

:focus-visible {
  outline: 3px solid rgba(151, 196, 18, 0.75);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  z-index: 80;
  width: 100%;
  padding: 0 18px;
}

.nav-shell {
  display: flex;
  width: min(1240px, 100%);
  min-height: 62px;
  margin: 0 auto;
  padding: 8px 10px 8px 18px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 18px;
  background: rgba(9, 19, 16, 0.68);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.14);
  backdrop-filter: blur(22px) saturate(135%);
  -webkit-backdrop-filter: blur(22px) saturate(135%);
  color: rgba(249, 251, 246, 0.82);
  transition: background-color 220ms var(--ease-out), border-color 220ms var(--ease-out);
}

.site-header.is-scrolled .nav-shell {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(13, 12, 10, 0.89);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 9px;
  color: var(--white);
  font-size: 17px;
  font-weight: 720;
  letter-spacing: -0.025em;
}

.brand-mark { width: 29px; height: 29px; overflow: visible; }
.brand-mark rect, .brand-mark path { fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.brand-mark path:last-child { stroke: var(--lime); }

.brand-beta {
  padding: 2px 6px;
  border: 1px solid rgba(103, 213, 181, 0.25);
  border-radius: 6px;
  color: var(--lime);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-left: 42px;
}

.nav-primary, .nav-actions { display: flex; align-items: center; gap: 24px; }
.nav-links a { font-size: 13px; font-weight: 560; transition: color 160ms var(--ease-out); }

.nav-cta {
  display: inline-flex;
  min-height: 44px;
  padding: 0 16px;
  align-items: center;
  gap: 8px;
  border-radius: 12px;
  background: var(--lime);
  color: var(--night) !important;
  box-shadow: 0 8px 24px rgba(195, 245, 31, 0.13);
  transition: transform 140ms var(--ease-out), background-color 160ms var(--ease-out) !important;
}

.nav-cta svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav-cta:active { transform: scale(0.97); }
.nav-toggle { display: none; transition: transform 140ms var(--ease-out); }
.nav-toggle:active { transform: scale(.97); }

.hero {
  position: relative;
  display: grid;
  min-height: 850px;
  padding: 170px max(24px, calc((100vw - 1240px) / 2)) 110px;
  grid-template-columns: minmax(420px, 0.86fr) minmax(560px, 1.14fr);
  gap: 70px;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 2%, rgba(93, 149, 120, 0.16), transparent 34%),
    linear-gradient(145deg, #07110e 0%, #0a1613 48%, #07100e 100%);
  color: var(--white);
}

.hero::after {
  position: absolute;
  right: 5%;
  bottom: -130px;
  left: 35%;
  height: 260px;
  content: "";
  background: rgba(188, 255, 69, 0.055);
  filter: blur(80px);
  border-radius: 50%;
}

.hero-glow { position: absolute; border-radius: 50%; pointer-events: none; filter: blur(10px); }
.hero-glow--one { top: 90px; left: -150px; width: 430px; height: 430px; background: radial-gradient(circle, rgba(81, 129, 109, 0.18), transparent 70%); }
.hero-glow--two { right: 10%; bottom: 5%; width: 350px; height: 350px; background: radial-gradient(circle, rgba(103, 213, 181, 0.08), transparent 70%); }

.hero-copy { position: relative; z-index: 2; max-width: 650px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 25px; color: rgba(246, 249, 243, 0.68); font-size: 13px; font-weight: 600; letter-spacing: 0.02em; }
.eyebrow-dot { position: relative; width: 9px; height: 9px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(103, 213, 181, 0.1); }

.hero h1 {
  margin: 0;
  font-size: clamp(3.5rem, 4.8vw, 4.45rem);
  font-weight: 710;
  line-height: 1.01;
  letter-spacing: -0.066em;
}

.headline-line { display: block; color: var(--white); white-space: nowrap; }
.hero h1 .headline-accent { color: var(--lime); }
.hero-lead { max-width: 600px; margin: 30px 0 0; color: rgba(238, 243, 236, 0.66); font-size: clamp(1rem, 1.35vw, 1.18rem); line-height: 1.78; }
.hero-actions { display: flex; gap: 14px; margin-top: 38px; }

.button {
  display: inline-flex;
  min-height: 52px;
  padding: 0 21px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 680;
  line-height: 1;
  transition: transform 140ms var(--ease-out), background-color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.button svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button:active { transform: scale(0.97); }
.button--primary { background: var(--lime); color: #0b1814; box-shadow: 0 16px 34px rgba(103, 213, 181, 0.14); }
.button--quiet { border-color: rgba(255, 255, 255, 0.13); background: rgba(255, 255, 255, 0.045); color: rgba(248, 251, 246, 0.78); backdrop-filter: blur(10px); }
.button--large { min-height: 58px; padding: 0 25px; }

.hero-proof { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 34px; color: rgba(235, 240, 233, 0.48); font-size: 12px; }
.hero-proof span { display: flex; align-items: center; gap: 8px; }
.hero-proof i { width: 5px; height: 5px; border-radius: 50%; background: rgba(103, 213, 181, 0.65); }

.hero-product {
  position: relative;
  z-index: 2;
  width: min(720px, 100%);
  margin-left: auto;
  perspective: 1200px;
  transform-style: preserve-3d;
}

.product-halo { position: absolute; inset: 8% 5% -12%; border-radius: 50%; background: rgba(181, 255, 83, 0.12); filter: blur(60px); }

.product-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 23px;
  background: #101916;
  box-shadow: 0 48px 120px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.window-bar { display: flex; height: 56px; padding: 0 18px; align-items: center; border-bottom: 1px solid rgba(255, 255, 255, 0.08); background: rgba(18, 28, 24, 0.96); }
.window-brand { display: flex; flex: 1; align-items: center; gap: 8px; color: rgba(245, 243, 241, 0.75); font-size: 12px; font-weight: 620; }
.window-brand svg { width: 20px; fill: none; stroke: var(--lime); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.window-status { display: flex; align-items: center; gap: 7px; padding: 5px 9px; border-radius: 99px; background: rgba(103, 213, 181, 0.08); color: var(--lime); font-size: 10px; font-weight: 650; }
.window-status span { width: 6px; height: 6px; border-radius: 50%; background: var(--lime); }
.window-tools { display: flex; gap: 5px; margin-left: 20px; }
.window-tools i { width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, 0.28); }

.window-canvas { position: relative; aspect-ratio: 1672 / 941; overflow: hidden; background: #0c1311; }
.canvas-photo { width: 100%; height: 100%; object-fit: cover; }
.canvas-photo--base { position: relative; z-index: 0; }
.background-grade, .canvas-people { position: absolute; inset: 0; display: none; pointer-events: none; }
.window-canvas::after { position: absolute; inset: 0; z-index: 3; content: ""; box-shadow: inset 0 0 70px rgba(4, 10, 8, 0.22); pointer-events: none; }

@supports ((mask-image: linear-gradient(#000, #000)) or (-webkit-mask-image: linear-gradient(#000, #000))) {
  .background-grade, .canvas-people { display: block; }
  .background-grade {
    z-index: 1;
    background-image:
      linear-gradient(rgba(103, 213, 181,.16) 1px, transparent 1px),
      linear-gradient(90deg, rgba(103, 213, 181,.16) 1px, transparent 1px),
      linear-gradient(125deg, rgba(70,125,194,.2), rgba(179,218,77,.18));
    background-size: 24px 24px, 24px 24px, 100% 100%;
  }
  .canvas-people {
    z-index: 2;
    background: url("./assets/merged-final.webp") center / 100% 100% no-repeat;
    -webkit-mask: url("./assets/people-mask-v1.png") center / 100% 100% no-repeat;
    mask: url("./assets/people-mask-v1.png") center / 100% 100% no-repeat;
  }
}

.background-grade span { position: absolute; top: 7%; left: 52%; padding: 5px 8px; border: 1px solid rgba(103, 213, 181,.34); border-radius: 7px; background: rgba(13, 12, 10,.72); color: var(--lime); font-size: 8px; font-weight: 720; letter-spacing: .02em; backdrop-filter: blur(8px); }

.face-focus { position: absolute; z-index: 4; border: 1.5px solid rgba(103, 213, 181, 0.9); border-radius: 46%; box-shadow: 0 0 0 2px rgba(9, 17, 14, 0.28); }
.face-focus span { position: absolute; top: -24px; left: -1px; padding: 3px 6px; border-radius: 5px; background: var(--lime); color: var(--night); font-size: 8px; font-weight: 750; white-space: nowrap; }
.face-focus--one { top: 29.1%; left: 22.7%; width: 8.3%; height: 14.7%; }
.face-focus--two { top: 40.1%; left: 59.1%; width: 7.2%; height: 14.2%; }

.merge-complete { position: absolute; right: 14px; bottom: 14px; z-index: 5; display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid rgba(255, 255, 255, 0.15); border-radius: 10px; background: rgba(13, 12, 10, 0.72); backdrop-filter: blur(14px); color: rgba(251, 252, 249, 0.85); font-size: 9px; font-weight: 600; }
.merge-complete svg { width: 15px; height: 15px; padding: 2px; border-radius: 50%; background: var(--lime); fill: none; stroke: var(--night); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.commit-dock { position: relative; display: grid; height: 88px; padding: 13px 24px 10px; grid-template-columns: repeat(4, 1fr); background: #171614; color: rgba(239, 243, 237, 0.52); font-size: 8px; }
.commit-line { position: absolute; top: 31px; right: 13%; left: 13%; height: 1px; background: linear-gradient(90deg, rgba(255,255,255,.18), var(--blue), var(--lime)); }
.commit { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.commit i { width: 11px; height: 11px; border: 3px solid #171614; border-radius: 50%; background: rgba(255,255,255,.42); box-shadow: 0 0 0 1px rgba(255,255,255,.16); }
.commit--a i { background: var(--blue); }.commit--b i { background: #62c7a9; }.commit--merge i { width: 13px; height: 13px; background: var(--lime); box-shadow: 0 0 0 1px rgba(103, 213, 181,.6), 0 0 18px rgba(103, 213, 181,.3); }

.source-card { position: absolute; z-index: 3; width: 225px; padding: 9px; border: 1px solid rgba(255, 255, 255, 0.16); border-radius: 16px; background: rgba(21, 32, 28, 0.91); box-shadow: 0 24px 58px rgba(0,0,0,.36); backdrop-filter: blur(18px); }
.source-card img { width: 100%; aspect-ratio: 1.65; object-fit: cover; border-radius: 10px; opacity: 0.78; }
.source-card--left img { filter: saturate(.9) brightness(1.04); }
.source-card--right img { filter: saturate(.72) contrast(.96) hue-rotate(-7deg); }
.source-card--left { bottom: 14%; left: -15%; transform: translateZ(38px) rotate(-3deg); }
.source-card--right { top: 18%; right: -11%; transform: translateZ(48px) rotate(3deg); }
.source-card__top { display: flex; margin-bottom: 8px; align-items: center; gap: 6px; color: rgba(245, 243, 241,.74); font-size: 8px; }
.source-card__top b { flex: 1; font-weight: 640; }.source-card__top em { color: var(--lime); font-style: normal; }
.source-avatar { display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; background: rgba(139, 178, 229,.18); color: #bdd0ff; font-size: 8px; }
.source-card__tag { margin-top: 7px; color: rgba(237,241,235,.4); font-size: 7px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.hero-enter { opacity: 1; transform: translateY(0); }
.js .hero-enter { animation: hero-enter 720ms var(--ease-out) backwards; animation-delay: calc(var(--enter-index) * 55ms + 80ms); }
@keyframes hero-enter { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

.signal-strip { display: flex; min-height: 78px; padding: 18px 24px; align-items: center; justify-content: center; gap: clamp(12px, 2.2vw, 34px); border-bottom: 1px solid var(--line); background: var(--paper-bright); color: #5b6662; font-size: 12px; font-weight: 620; letter-spacing: 0.03em; }
.signal-strip p { margin: 0; }.signal-strip span { color: #9ba49f; }

.section { padding: 145px max(24px, calc((100vw - 1180px) / 2)); }
.section-heading { max-width: 850px; margin: 0 auto 115px; text-align: center; }
.kicker { margin: 0 0 17px; color: #718070; font-size: 12px; font-weight: 720; letter-spacing: 0.09em; text-transform: uppercase; }
.section-heading h2 { margin: 0; font-size: clamp(2.7rem, 5vw, 5.2rem); font-weight: 680; line-height: 1.04; letter-spacing: -0.057em; }
.section-heading > p:last-child { max-width: 660px; margin: 26px auto 0; color: var(--ink-soft); font-size: 17px; line-height: 1.8; }

.feature { display: grid; min-height: 610px; margin-bottom: 170px; scroll-margin-top: 90px; grid-template-columns: minmax(360px, 0.83fr) minmax(520px, 1.17fr); gap: clamp(60px, 8vw, 130px); align-items: center; }
.feature:nth-of-type(even) { grid-template-columns: minmax(520px, 1.17fr) minmax(360px, 0.83fr); }
.feature:nth-of-type(even) .feature-copy { order: 2; }
.feature:nth-of-type(even) .feature-visual { order: 1; }
.feature:last-child { margin-bottom: 20px; }

.feature-index { display: inline-flex; margin-bottom: 22px; color: #738178; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; }
.feature-copy h3 { margin: 0; font-size: clamp(2.35rem, 4vw, 4.25rem); font-weight: 670; line-height: 1.03; letter-spacing: -0.055em; text-wrap: balance; }
.feature-copy > p { margin: 27px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.85; }
.check-list { display: grid; gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; color: #3e4a46; font-size: 13px; }
.check-list li { display: flex; align-items: center; gap: 10px; }
.check-list li::before { display: grid; width: 20px; height: 20px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: rgba(175, 210, 65, 0.14); color: #6d860d; content: "✓"; font-size: 10px; font-weight: 800; }

.feature-visual { position: relative; min-height: 520px; overflow: hidden; border: 1px solid rgba(24, 22, 19, 0.09); border-radius: 30px; background: #eaede4; box-shadow: var(--shadow-small), inset 0 1px 0 rgba(255,255,255,.68); }

.source-stack { overflow: visible; background: radial-gradient(circle at 45% 50%, #f7f8f3 0%, #e6e3df 78%); }
.source-stack::before { position: absolute; inset: 10% 8%; border: 1px dashed rgba(49,66,57,.14); border-radius: 50%; content: ""; }
.edit-sheet { position: absolute; width: 49%; padding: 10px; border: 1px solid rgba(14,30,24,.11); border-radius: 17px; background: rgba(252,253,249,.92); box-shadow: 0 22px 55px rgba(17,37,29,.14); }
.edit-preview { position: relative; aspect-ratio: 1.53; overflow: hidden; border-radius: 11px; }
.edit-preview img { width: 100%; height: 100%; object-fit: cover; }
.edit-sheet--one img { filter: saturate(.92) brightness(1.04); }
.edit-sheet--two img { filter: contrast(1.035) saturate(.96); }
.edit-sheet--three img { filter: saturate(.7) contrast(.96) hue-rotate(-7deg); }
.edit-sheet--one { top: 10%; left: 8%; transform: rotate(-4deg); }
.edit-sheet--two { top: 19%; right: 5%; transform: rotate(4deg); }
.edit-sheet--three { bottom: 7%; left: 26%; transform: rotate(-1deg); }
.edit-sheet__meta { display: flex; margin: 0 2px 8px; align-items: center; justify-content: space-between; color: #6b6864; font-size: 9px; font-weight: 650; }
.edit-sheet__meta b { display: grid; width: 20px; height: 20px; place-items: center; border-radius: 6px; background: #e9ece5; color: #77817d; }
.edit-sheet p { display: flex; margin: 8px 2px 1px; align-items: center; gap: 6px; color: #5f6a65; font-size: 8px; }
.edit-sheet p i { width: 6px; height: 6px; border-radius: 50%; background: #9ec932; }
.edit-mask { position: absolute; border: 2px solid var(--lime-strong); border-radius: 50%; box-shadow: 0 0 0 3px rgba(7,17,14,.3); }
.edit-mask--face-a { top: 32.8%; left: 45.2%; width: 10.2%; height: 17%; }
.edit-mask--face-b { top: 39.4%; left: 60.1%; width: 9%; height: 15.5%; }
.edit-grade { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(91,137,186,.12), rgba(208,224,132,.16)); mix-blend-mode: color; }

.metric-row { display: grid; margin-top: 36px; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-row div { padding: 18px 14px 18px 0; }
.metric-row div + div { padding-left: 17px; border-left: 1px solid var(--line); }
.metric-row strong { display: block; font-size: 25px; font-weight: 690; letter-spacing: -0.04em; }
.metric-row span { color: #807d79; font-size: 10px; }

.async-board { padding: 22px; background: linear-gradient(155deg, #e9ede4, #dfe5db); }
.async-head { display: flex; height: 38px; align-items: flex-start; justify-content: space-between; color: #4d5954; font-size: 11px; font-weight: 680; }
.async-head em { color: #738079; font-size: 9px; font-style: normal; font-weight: 550; }
.async-photo { position: relative; overflow: hidden; height: 250px; border-radius: 17px; }
.async-photo img { width: 100%; height: 100%; object-fit: cover; }
.async-photo__badge { position: absolute; bottom: 12px; left: 12px; display: flex; align-items: center; gap: 7px; padding: 7px 9px; border: 1px solid rgba(255,255,255,.18); border-radius: 8px; background: rgba(8,18,15,.72); backdrop-filter: blur(10px); color: rgba(245, 243, 241,.82); font-size: 8px; }
.async-photo__badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--lime); }
.async-list { display: grid; gap: 7px; margin-top: 13px; }
.async-item { display: flex; min-height: 58px; padding: 9px 11px; align-items: center; gap: 10px; border: 1px solid rgba(17,35,28,.07); border-radius: 12px; background: rgba(250,251,247,.8); }
.avatar { display: grid; width: 34px; height: 34px; flex: 0 0 auto; place-items: center; border-radius: 10px; font-size: 10px; font-weight: 750; }
.avatar--green { background: #d9e7cf; color: #456044; }.avatar--blue { background: #d9e3f4; color: #405877; }.avatar--sand { background: #e9e0cf; color: #6b5942; }
.async-item p { display: flex; flex: 1; margin: 0; flex-direction: column; line-height: 1.3; }.async-item b { color: #2f3b36; font-size: 10px; }.async-item small { margin-top: 3px; color: #87918c; font-size: 8px; }
.async-item em { padding: 4px 7px; border-radius: 6px; background: rgba(157,199,54,.12); color: #66830c; font-size: 8px; font-style: normal; font-weight: 650; }

.version-card { display: flex; padding: 23px; flex-direction: column; background: #141210; color: var(--white); box-shadow: var(--shadow-large); }
.version-top { display: flex; align-items: center; justify-content: space-between; color: rgba(242, 240, 237,.72); font-size: 11px; font-weight: 650; }
.version-top button { padding: 6px 9px; border: 1px solid rgba(255,255,255,.11); border-radius: 7px; background: rgba(255,255,255,.04); color: rgba(242, 240, 237,.55); font-size: 8px; }
.version-map { width: 100%; flex: 1; overflow: visible; }
.branch { fill: none; stroke: rgba(255,255,255,.18); stroke-width: 3; stroke-linecap: round; }
.branch--lime { stroke: rgba(201,247,55,.72); }.branch--blue { stroke: rgba(139, 178, 229,.66); }
.version-node circle { fill: #7d7a76; stroke: #141210; stroke-width: 5; }.version-node text { fill: rgba(244,248,242,.48); font-size: 12px; font-family: ui-sans-serif, system-ui, sans-serif; text-anchor: middle; }
.version-node.node--lime circle { fill: var(--lime); }.version-node.node--blue circle { fill: var(--blue); }.version-node.node--merge circle { fill: var(--lime); filter: drop-shadow(0 0 9px rgba(103, 213, 181,.25)); }.node--merge path { fill: none; stroke: #14200f; stroke-width: 2.3; stroke-linecap: round; stroke-linejoin: round; }
.version-legend { display: flex; gap: 16px; color: rgba(241,245,239,.42); font-size: 8px; }.version-legend span { display: flex; align-items: center; gap: 5px; }.version-legend i { width: 6px; height: 6px; border-radius: 50%; background: #7d7a76; }.version-legend .legend-lime { background: var(--lime); }.version-legend .legend-blue { background: var(--blue); }

.decision-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }.decision-pills span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 99px; color: #66716c; font-size: 10px; font-weight: 600; }
.detect-card { padding: 15px; background: #e4e9df; }
.detect-photo { position: relative; height: auto; aspect-ratio: 1.78; overflow: hidden; border-radius: 19px; }
.detect-photo img { width: 100%; height: 100%; object-fit: cover; }
.detect-box { position: absolute; border: 1.5px solid var(--lime); border-radius: 48%; box-shadow: 0 0 0 2px rgba(7,15,13,.22); }
.detect-box i { position: absolute; top: -24px; left: -1px; padding: 3px 6px; border-radius: 5px; background: var(--lime); color: var(--night); font-size: 8px; font-style: normal; font-weight: 700; white-space: nowrap; }
.detect-box--a { top: 29.1%; left: 22.7%; z-index: 2; width: 8.3%; height: 14.7%; }
.detect-box--b { top: 40.1%; left: 59.1%; z-index: 2; width: 7.2%; height: 14.2%; border-color: var(--blue); }
.detect-box--b i { background: var(--blue); }
.detect-box--c { top: 18%; left: 25%; z-index: 1; width: 39%; height: 27%; border-color: #ffbd4a; border-radius: 16px; border-style: dashed; background-image: linear-gradient(rgba(255,189,74,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(255,189,74,.13) 1px, transparent 1px), linear-gradient(135deg, rgba(255,207,115,.12), rgba(255,207,115,.035)); background-size: 14px 14px, 14px 14px, 100% 100%; }
.detect-box--c i { background: #ffcf73; }
.detect-result { display: grid; gap: 7px; margin-top: 10px; }
.detect-result > div { display: flex; padding: 10px 11px; align-items: center; gap: 10px; border: 1px solid rgba(21,42,33,.07); border-radius: 12px; background: rgba(251,252,248,.83); }
.result-icon { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 9px; font-size: 11px; font-weight: 800; }.result-icon--auto { background: rgba(172,212,60,.17); color: #718c13; }.result-icon--review { background: rgba(255,190,75,.17); color: #a56f11; }
.detect-result p { display: flex; flex: 1; margin: 0; flex-direction: column; line-height: 1.35; }.detect-result b { font-size: 9px; }.detect-result small { color: #86908b; font-size: 7px; }.detect-result em { color: #807d79; font-size: 8px; font-style: normal; }

.quality-facts { display: grid; gap: 10px; margin-top: 30px; }.quality-facts span { color: #6b6864; font-size: 12px; }.quality-facts b { display: inline-block; min-width: 58px; color: var(--ink); font-size: 13px; }
.quality-card { padding: 16px; background: #e6e3df; }
.quality-head { display: flex; height: 34px; align-items: flex-start; justify-content: space-between; color: #53605a; font-size: 10px; font-weight: 650; }.quality-head em { color: #89928e; font-size: 8px; font-style: normal; font-weight: 500; }
.compare-stage { position: relative; height: 400px; overflow: hidden; border-radius: 19px; background: #111a17; touch-action: pan-y; }
.compare-stage img { width: 100%; height: 100%; object-fit: cover; user-select: none; pointer-events: none; }
.compare-base { position: absolute; inset: 0; image-rendering: auto; }
.compare-overlay { position: absolute; inset: 0; overflow: hidden; clip-path: inset(0 0 0 54%); will-change: clip-path; }
.compare-overlay img { position: absolute; inset: 0; width: 100%; max-width: none; }
.compare-handle { position: absolute; top: 0; bottom: 0; left: 0; width: 100%; border-left: 2px solid rgba(255,255,255,.94); transform: translate3d(54%, 0, 0); pointer-events: none; will-change: transform; }
.compare-handle span { position: absolute; top: 50%; left: 0; display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: rgba(9,17,14,.74); color: white; font-size: 12px; transform: translate(-50%, -50%); box-shadow: 0 8px 22px rgba(0,0,0,.22); backdrop-filter: blur(8px); }
.compare-stage input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; cursor: ew-resize; opacity: 0; }
.compare-label { position: absolute; top: 13px; padding: 5px 8px; border: 1px solid rgba(255,255,255,.17); border-radius: 7px; background: rgba(8,16,14,.65); color: rgba(255,255,255,.8); font-size: 8px; backdrop-filter: blur(8px); pointer-events: none; }.compare-label--left { left: 13px; }.compare-label--right { right: 13px; color: var(--lime); }
.quality-meta { display: flex; margin-top: 11px; align-items: center; gap: 10px; color: #7b8580; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 7px; }.quality-meta strong { margin-left: auto; padding: 4px 6px; border-radius: 5px; background: rgba(158,199,54,.14); color: #6f8918; font-weight: 650; }

.reveal { opacity: 1; transform: translateY(0); }
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 680ms var(--ease-out), transform 680ms var(--ease-out); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }
.js .feature.is-visible .async-item { opacity: 1; transform: translateY(0); }
.js .async-item { opacity: 0; transform: translateY(9px); transition: opacity 440ms var(--ease-out), transform 440ms var(--ease-out); transition-delay: calc(var(--item-index) * 55ms + 160ms); }
.js .version-node__content { opacity: 0; transform-box: fill-box; transform-origin: center; transform: scale(.94); transition: opacity 360ms var(--ease-out), transform 360ms var(--ease-out); transition-delay: calc(var(--node-index) * 45ms + 170ms); }
.js .feature.is-visible .version-node__content { opacity: 1; transform: scale(1); }

.workflow { position: relative; padding: 145px max(24px, calc((100vw - 1180px) / 2)); overflow: hidden; background: #0a1411; color: var(--white); }
.workflow::before { position: absolute; top: -40%; left: 13%; width: 620px; height: 620px; border-radius: 50%; background: rgba(98,134,114,.13); filter: blur(90px); content: ""; }
.workflow-inner { position: relative; z-index: 1; }
.section-heading--light { margin-bottom: 75px; }.section-heading--light .kicker { color: var(--lime); }.section-heading--light > p:last-child { color: rgba(242, 240, 237,.55); }
.workflow-grid { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(4, 1fr); list-style: none; }
.workflow-step { position: relative; min-height: 285px; padding: 24px 30px 27px; border-top: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12); border-left: 1px solid rgba(255,255,255,.12); }
.workflow-step:last-child { border-right: 1px solid rgba(255,255,255,.12); }
.workflow-step > span { color: rgba(245,248,243,.35); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.step-icon { display: grid; width: 47px; height: 47px; margin-top: 50px; place-items: center; border: 1px solid rgba(103, 213, 181,.17); border-radius: 14px; background: rgba(103, 213, 181,.07); color: var(--lime); }
.step-icon svg { width: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.workflow-step h3 { margin: 23px 0 0; font-size: 18px; font-weight: 650; letter-spacing: -.025em; }.workflow-step p { margin: 10px 0 0; color: rgba(238,243,236,.48); font-size: 12px; line-height: 1.75; }

.closing-cta { position: relative; display: grid; min-height: 720px; padding: 130px 24px; place-items: center; overflow: hidden; background: #e7ebe2; text-align: center; }
.closing-cta::before { position: absolute; inset: 0; content: ""; background: radial-gradient(circle at center, rgba(207,255,48,.2), transparent 38%); }
.closing-cta__glow { position: absolute; width: 420px; height: 420px; border: 1px solid rgba(56, 141, 118,.12); border-radius: 50%; box-shadow: 0 0 0 80px rgba(56, 141, 118,.035), 0 0 0 160px rgba(56, 141, 118,.022); }
.closing-cta__content { position: relative; z-index: 2; max-width: 810px; }
.closing-mark { display: grid; width: 56px; height: 56px; margin: 0 auto 26px; place-items: center; border-radius: 16px; background: var(--night); color: var(--lime); font-size: 22px; font-weight: 800; box-shadow: 0 15px 38px rgba(13, 12, 10,.18); }
.closing-cta h2 { margin: 0; font-size: clamp(3rem, 6vw, 6rem); font-weight: 690; line-height: .99; letter-spacing: -.065em; }.closing-cta__content > p:not(.kicker) { margin: 25px 0 32px; color: #65716b; }

.site-footer { display: grid; padding: 72px max(24px, calc((100vw - 1180px) / 2)) 30px; grid-template-columns: 1fr 1fr; gap: 60px; background: #07100e; color: rgba(242, 240, 237,.55); }
.brand--footer { color: var(--white); }.footer-brand p { margin: 15px 0 0; font-size: 12px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }.footer-links div { display: flex; flex-direction: column; gap: 9px; }.footer-links b { margin-bottom: 5px; color: rgba(245, 243, 241,.8); font-size: 11px; }.footer-links a { width: fit-content; font-size: 11px; transition: color 160ms var(--ease-out); }
.footer-bottom { display: flex; padding-top: 28px; grid-column: 1 / -1; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid rgba(255,255,255,.08); font-size: 9px; }
.footer-record { color: inherit; transition: color 160ms var(--ease-out); }

.notice { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; padding: 11px 12px 11px 15px; align-items: center; gap: 18px; border: 1px solid rgba(255,255,255,.12); border-radius: 13px; background: rgba(13, 12, 10,.9); color: rgba(245, 243, 241,.85); box-shadow: 0 20px 55px rgba(0,0,0,.23); backdrop-filter: blur(18px); font-size: 11px; opacity: 0; pointer-events: none; transform: translateY(12px) scale(.97); transform-origin: right bottom; transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out); }
.notice.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }.notice button { display: grid; width: 24px; height: 24px; padding: 0; place-items: center; border: 0; border-radius: 7px; background: rgba(255,255,255,.07); cursor: pointer; transition: transform 140ms var(--ease-out), background-color 160ms ease; }.notice button:active { transform: scale(.97); }

@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover, .footer-links a:hover, .footer-record:hover { color: var(--white); }
  .button--primary:hover { background: #e0ff66; transform: translateY(-2px); }
  .button--quiet:hover { border-color: rgba(255,255,255,.23); background: rgba(255,255,255,.075); }
  .nav-cta:hover { background: #e1ff67; transform: translateY(-1px); }
  .feature-visual { transition: transform 240ms var(--ease-out); }
  .feature:hover .feature-visual { transform: translateY(-4px); }
  .workflow-step { transition: background-color 220ms var(--ease-out); }
  .workflow-step:hover { background: rgba(255,255,255,.025); }
}

@media (max-width: 1120px) {
  .nav-primary { display: none; }
  .nav-links { justify-content: flex-end; }
  .hero { min-height: 920px; grid-template-columns: minmax(380px,.88fr) minmax(440px,1.12fr); gap: 30px; }
  .source-card { width: 180px; }.source-card--left { left: -7%; }.source-card--right { right: -5%; }
  .feature, .feature:nth-of-type(even) { grid-template-columns: minmax(330px,.8fr) minmax(450px,1.2fr); gap: 55px; }.feature:nth-of-type(even) .feature-copy { order: 2; }.feature:nth-of-type(even) .feature-visual { order: 1; }
}

@media (max-width: 860px) {
  .site-header { top: 9px; padding: 0 10px; }.nav-shell { min-height: 56px; padding: 7px 10px 7px 14px; border-radius: 15px; }
  .nav-toggle { display: grid; width: 40px; height: 40px; margin-left: auto; padding: 0; place-items: center; border: 0; border-radius: 10px; background: rgba(255,255,255,.06); cursor: pointer; }
  .nav-toggle span:not(.sr-only) { position: absolute; width: 16px; height: 1.5px; border-radius: 2px; background: rgba(255,255,255,.78); transition: transform 180ms var(--ease-out); }.nav-toggle span:first-child { transform: translateY(-3px); }.nav-toggle span:nth-child(2) { transform: translateY(3px); }.nav-toggle[aria-expanded="true"] span:first-child { transform: rotate(45deg); }.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: rotate(-45deg); }
  .nav-links { position: absolute; top: 64px; right: 10px; left: 10px; display: flex; visibility: hidden; margin: 0; padding: 13px; flex-direction: column; align-items: stretch; gap: 8px; border: 1px solid rgba(255,255,255,.11); border-radius: 15px; background: rgba(13, 12, 10,.96); box-shadow: 0 25px 60px rgba(0,0,0,.3); backdrop-filter: blur(20px); opacity: 0; pointer-events: none; transform: translateY(-7px) scale(.98); transform-origin: top right; transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out), visibility 0s linear 180ms; }
  .nav-links.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); transition-delay: 0s; }.nav-primary, .nav-actions { display: flex; align-items: stretch; flex-direction: column; gap: 2px; }.nav-links a { display: flex; min-height: 42px; padding: 0 11px; align-items: center; border-radius: 9px; }.nav-cta { justify-content: space-between; }
  .hero { display: block; min-height: auto; padding: 145px 24px 100px; text-align: center; }.hero-copy { max-width: 690px; margin: 0 auto; }.hero h1 { font-size: clamp(3rem, 10vw, 5rem); }.hero-lead { margin-right: auto; margin-left: auto; }.hero-actions, .hero-proof { justify-content: center; }
  .hero-product { width: min(680px, 90vw); margin: 100px auto 0; text-align: left; }.source-card--left { left: -4%; }.source-card--right { right: -4%; }
  .section { padding: 110px 24px; }.section-heading { margin-bottom: 90px; }.section-heading h2 { font-size: clamp(2.7rem, 8vw, 4.7rem); }
  .feature, .feature:nth-of-type(even) { display: flex; min-height: auto; margin-bottom: 120px; flex-direction: column; gap: 45px; }.feature:nth-of-type(even) .feature-copy, .feature-copy { order: 1; width: min(620px,100%); }.feature:nth-of-type(even) .feature-visual, .feature-visual { order: 2; width: min(680px,100%); min-height: 530px; }
  .workflow { padding: 110px 24px; }.workflow-grid { grid-template-columns: repeat(2,1fr); }.workflow-step:nth-child(2) { border-right: 1px solid rgba(255,255,255,.12); }.workflow-step:nth-child(n+3) { border-top: 0; }
}

@media (max-width: 560px) {
  .hero { padding-right: 17px; padding-left: 17px; }.hero h1 { font-size: clamp(2.7rem, 11vw, 3.7rem); }.hero-lead { font-size: 15px; }.hero-actions { flex-direction: column; }.hero-actions .button { width: 100%; }.hero-proof { gap: 12px; }
  .hero-product { width: 100%; margin-top: 78px; }.product-window { border-radius: 16px; }.window-bar { height: 45px; padding: 0 11px; }.window-tools { display: none; }.commit-dock { height: 73px; padding-right: 12px; padding-left: 12px; }.commit span { font-size: 6px; }.source-card { width: 145px; padding: 6px; border-radius: 11px; }.source-card--left { bottom: -13%; left: 0; }.source-card--right { top: -6%; right: -2%; }.source-card__top { margin-bottom: 5px; }.source-card__tag { display: none; }.face-focus span { top: -16px; padding: 2px 4px; font-size: 5px; }.background-grade span { padding: 3px 5px; font-size: 5px; }.merge-complete { right: 7px; bottom: 7px; padding: 5px 7px; font-size: 7px; }
  .signal-strip { flex-wrap: wrap; gap: 7px 10px; font-size: 9px; }.signal-strip span { transform: rotate(90deg); }
  .section { padding: 100px 17px; }.section-heading { margin-bottom: 75px; text-align: left; }.section-heading h2 { font-size: 2.7rem; }.section-heading > p:last-child { font-size: 15px; }
  .feature { margin-bottom: 105px !important; gap: 35px !important; }.feature-copy h3 { font-size: 2.55rem; }.feature-copy > p { font-size: 14px; }.feature-visual { min-height: 420px !important; border-radius: 22px; }.edit-sheet { width: 58%; }.edit-sheet--one { top: 7%; left: 3%; }.edit-sheet--two { top: 20%; right: 1%; }.edit-sheet--three { bottom: 5%; left: 19%; }
  .async-board { padding: 14px; }.async-photo { height: 185px; }.async-item { min-height: 52px; }.version-card { padding: 14px; }.version-map { min-height: 300px; }.detect-photo { height: auto; }.compare-stage { height: 300px; }
  .metric-row span { font-size: 8px; }.quality-meta { gap: 6px; }.quality-meta span:nth-child(2) { display: none; }
  .workflow { padding: 100px 17px; }.section-heading--light { text-align: center; }.workflow-grid { grid-template-columns: 1fr; }.workflow-step { min-height: 220px; border-right: 1px solid rgba(255,255,255,.12); border-top: 0; }.workflow-step:first-child { border-top: 1px solid rgba(255,255,255,.12); }.step-icon { margin-top: 28px; }
  .closing-cta { min-height: 620px; padding: 100px 18px; }.closing-cta h2 { font-size: 3.3rem; }.closing-cta__glow { width: 260px; height: 260px; }
  .site-footer { padding: 60px 20px 24px; grid-template-columns: 1fr; }.footer-links { margin-top: 8px; }.footer-bottom { gap: 16px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .hero-enter { animation: none; }
  .js .reveal, .js .async-item { opacity: 1; transform: none; transition: opacity 180ms ease; }
  .js .version-node__content { opacity: 1; transform: none; transition: opacity 180ms ease; }
  .hero-product { transform: none !important; will-change: auto !important; }
  .button, .nav-cta { transition: background-color 160ms ease, border-color 160ms ease; }
  .button:active, .nav-cta:active, .nav-toggle:active, .notice button:active, .feature:hover .feature-visual { transform: none; }
  .feature-visual { transition: none; }
  .notice { transform: none; transition: opacity 160ms ease; }
  .nav-links { transform: none; transition: opacity 160ms ease, visibility 0s linear 160ms; }
  .nav-links.is-open { transform: none; transition-delay: 0s; }
  .nav-toggle span { transition: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .nav-shell, .nav-links, .notice { background: #08110f; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .merge-complete, .async-photo__badge, .compare-label { background: rgba(13, 12, 10,.94); backdrop-filter: none; }
}

@media (prefers-contrast: more) {
  .nav-shell, .nav-links { border-color: rgba(255,255,255,.55); background: #06100d; }
  .feature-visual { border-color: rgba(24, 22, 19,.35); }
  .hero-lead, .workflow-step p { color: rgba(245, 243, 241,.82); }
}