:root {
  --bg: #f6f9fa;
  --surface: #fcfefe;
  --surface-strong: #eef5f6;
  --ink: #11292f;
  --muted: #60757a;
  --dim: #899a9e;
  --accent: #087f9a;
  --accent-dark: #075f72;
  --accent-soft: #ddf2f5;
  --line: rgba(17, 72, 82, .13);
  --line-strong: rgba(17, 72, 82, .23);
  --shadow: 0 30px 80px rgba(16, 69, 79, .13);
  --radius: 18px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 11%, rgba(8, 127, 154, .07), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font-family: Aptos, "Segoe UI Variable Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }

.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; border-radius: 10px; background: var(--ink); color: var(--surface); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.grain { position: fixed; z-index: 30; inset: 0; pointer-events: none; opacity: .027; 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='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.82'/%3E%3C/svg%3E"); }

.browser-nav {
  position: fixed;
  z-index: 50;
  top: 16px;
  left: 50%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  min-height: 62px;
  padding: 8px 10px 8px 14px;
  border: 1px solid rgba(17, 72, 82, .11);
  border-radius: var(--radius);
  background: rgba(248, 251, 251, .88);
  box-shadow: 0 14px 38px rgba(16, 69, 79, .08), inset 0 1px rgba(255, 255, 255, .65);
  backdrop-filter: blur(18px) saturate(1.08);
  transform: translateX(-50%);
}
.browser-brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; font-weight: 720; letter-spacing: -.02em; }
.browser-brand img { width: 34px; height: 34px; object-fit: contain; }
.browser-nav nav { display: flex; justify-content: center; gap: 4px; }
.browser-nav nav a { min-height: 44px; padding: 10px 13px; border-radius: 12px; color: var(--muted); font-size: 14px; font-weight: 620; }
.browser-nav nav a:hover { background: var(--accent-soft); color: var(--accent-dark); }
.nav-download { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 17px; border-radius: 12px; background: var(--ink); color: #f5fbfc; font-size: 13px; font-weight: 700; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(350px, .72fr);
  align-items: center;
  gap: clamp(48px, 8vw, 122px);
  width: min(1180px, calc(100% - 48px));
  min-height: 100dvh;
  margin: 0 auto;
  padding: 136px 0 92px;
}
#route-field { position: absolute; z-index: -1; inset: 70px -20vw 20px -20vw; width: calc(100% + 40vw); height: calc(100% - 90px); opacity: .8; }
.hero-copy { position: relative; z-index: 2; max-width: 650px; }
.hero-kicker, .section-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--accent-dark); font-size: 12px; font-weight: 760; letter-spacing: .08em; }
.hero-kicker span { width: 30px; height: 1px; background: var(--accent); }
.hero h1 {
  margin: 0;
  font-family: "Segoe UI Variable Display", "Aptos Display", "PingFang SC", sans-serif;
  font-size: clamp(58px, 7.1vw, 98px);
  font-weight: 680;
  line-height: .92;
  letter-spacing: -.065em;
}
.hero-lead { max-width: 510px; margin: 28px 0 0; color: var(--muted); font-size: clamp(16px, 2vw, 20px); font-weight: 390; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid transparent; border-radius: 13px; font-size: 14px; font-weight: 720; line-height: 1; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s var(--ease); }
.button.primary { background: var(--accent-dark); color: #f4fbfc; box-shadow: 0 12px 28px rgba(7, 95, 114, .2); }
.button.quiet { border-color: var(--line-strong); background: rgba(252, 254, 254, .65); color: var(--ink); }
.button:hover { transform: translateY(-2px); }
.button.primary:hover { box-shadow: 0 16px 34px rgba(7, 95, 114, .25); }
.button:focus-visible, .browser-nav a:focus-visible, .screenshot-rail:focus-visible, .text-link:focus-visible { outline: 3px solid rgba(8, 127, 154, .32); outline-offset: 3px; }

.hero-product { position: relative; z-index: 2; justify-self: center; width: min(360px, 36vw); }
.phone-frame { position: relative; margin: 0; padding: 10px; border: 1px solid var(--line-strong); border-radius: 36px; background: rgba(252, 254, 254, .92); box-shadow: var(--shadow); transform: rotate(2deg); }
.phone-frame::before { content: ""; position: absolute; z-index: 2; top: 8px; left: 50%; width: 66px; height: 14px; border-radius: 999px; background: rgba(17, 41, 47, .94); transform: translateX(-50%); }
.phone-frame img { width: 100%; border-radius: 27px; }
.orbit-note { position: absolute; z-index: 4; display: flex; align-items: center; gap: 8px; min-height: 38px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 11px; background: rgba(252, 254, 254, .92); color: var(--muted); box-shadow: 0 14px 35px rgba(16, 69, 79, .1); backdrop-filter: blur(12px); font-size: 12px; font-weight: 650; }
.orbit-note i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(8, 127, 154, .1); }
.note-top { top: 15%; left: -27%; }
.note-bottom { right: -28%; bottom: 18%; }
.hero-meta { position: absolute; bottom: 30px; left: 0; display: flex; gap: 10px 24px; color: var(--dim); font-size: 12px; font-variant-numeric: tabular-nums; }
.hero-meta span + span::before { content: ""; display: inline-block; width: 3px; height: 3px; margin: 0 13px 3px 0; border-radius: 50%; background: var(--line-strong); }

.section { width: min(1120px, calc(100% - 48px)); margin: 0 auto; padding: 116px 0; }
.section h2 { margin: 0; font-family: "Segoe UI Variable Display", "Aptos Display", "PingFang SC", sans-serif; font-size: clamp(39px, 5vw, 66px); font-weight: 660; line-height: .98; letter-spacing: -.052em; }
.section-heading { display: grid; grid-template-columns: 1.12fr .72fr; align-items: end; gap: 60px; margin-bottom: 56px; }
.section-heading p, .capability-intro p, .privacy-title-wrap p, .account-copy-block p, .vip-copy > p:last-child { margin: 0; color: var(--muted); }

.screenshot-rail { display: grid; grid-template-columns: .92fr .92fr 1.16fr; gap: 22px; align-items: start; padding: 24px; border: 1px solid var(--line); border-radius: calc(var(--radius) + 10px); background: rgba(238, 245, 246, .7); box-shadow: inset 0 1px rgba(255, 255, 255, .75); }
.shot { margin: 0; }
.shot img { width: 100%; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: 0 22px 46px rgba(16, 69, 79, .1); }
.shot-menu { margin-top: 44px; }
.shot-settings { margin-top: 6px; }
.shot figcaption { display: flex; flex-direction: column; gap: 2px; padding: 14px 6px 0; }
.shot figcaption b { font-size: 14px; }
.shot figcaption span { color: var(--muted); font-size: 12px; }

.capability-section { display: grid; grid-template-columns: .68fr 1.32fr; gap: 86px; align-items: start; }
.capability-intro { position: sticky; top: 110px; }
.capability-intro h2 { font-size: clamp(38px, 4.4vw, 57px); }
.capability-intro p { margin-top: 25px; }
.capability-bands { border-top: 1px solid var(--line-strong); }
.capability-bands article { display: grid; grid-template-columns: 44px 180px 1fr; gap: 20px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--line); }
.capability-bands article > span { color: var(--accent); font-family: "Cascadia Mono", monospace; font-size: 11px; }
.capability-bands h3 { margin: -3px 0 0; font-size: 18px; letter-spacing: -.02em; }
.capability-bands p { margin: 0; color: var(--muted); font-size: 14px; }

.ai-section { display: grid; grid-template-columns: .94fr .72fr; gap: 100px; align-items: center; }
.ai-copy h2 { max-width: 650px; }
.ai-copy > p:not(.section-kicker) { max-width: 620px; margin: 26px 0 0; color: var(--muted); }
.ai-copy ul { display: grid; gap: 10px; margin: 30px 0 0; padding: 0; list-style: none; }
.ai-copy li { position: relative; padding-left: 24px; font-size: 14px; font-weight: 620; }
.ai-copy li::before { content: ""; position: absolute; top: .72em; left: 2px; width: 8px; height: 1px; background: var(--accent); }
.ai-shot { margin: 0; padding: 12px; border: 1px solid var(--line); border-radius: 30px; background: var(--surface); box-shadow: var(--shadow); transform: rotate(-1.6deg); }
.ai-shot img { border-radius: 21px; }
.ai-shot figcaption { padding: 13px 5px 3px; color: var(--muted); font-size: 11px; text-align: center; }

.privacy-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 74px 96px; }
.privacy-title-wrap h2 { font-size: clamp(38px, 4.4vw, 58px); }
.privacy-title-wrap p { margin-top: 24px; }
.privacy-ledger { border-top: 1px solid var(--line-strong); }
.privacy-ledger > div { display: grid; grid-template-columns: 114px 1fr auto; gap: 16px; align-items: center; min-height: 72px; border-bottom: 1px solid var(--line); }
.privacy-ledger b { font-size: 12px; }
.privacy-ledger span { font-size: 14px; }
.privacy-ledger em { color: var(--accent-dark); font-size: 11px; font-style: normal; font-weight: 700; }
.text-link { display: inline-flex; align-items: center; align-self: start; width: max-content; min-height: 44px; margin-top: -48px; color: var(--accent-dark); font-size: 13px; font-weight: 730; text-decoration: underline; text-decoration-color: rgba(8, 127, 154, .3); text-underline-offset: 5px; }

.account-section { display: grid; grid-template-columns: .86fr 1.14fr; gap: 90px; align-items: center; }
.account-copy-block p { margin: 25px 0 30px; }
.identity-map { display: grid; grid-template-columns: 1fr 58px 1fr; grid-template-rows: repeat(3, auto); gap: 12px 0; align-items: center; padding: 32px; border: 1px solid var(--line); border-radius: 28px; background: rgba(252, 254, 254, .72); box-shadow: 0 28px 68px rgba(16, 69, 79, .08); }
.identity-source { grid-row: 1 / 4; display: flex; flex-direction: column; justify-content: center; min-height: 160px; padding: 24px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface-strong); }
.identity-source small, .identity-source span { color: var(--muted); font-size: 11px; }
.identity-source b { margin: 6px 0 4px; font-size: 21px; }
.identity-line { grid-row: 1 / 4; position: relative; align-self: stretch; }
.identity-line::before { content: ""; position: absolute; top: 50%; left: 0; width: 50%; height: 1px; background: var(--line-strong); }
.identity-line::after { content: ""; position: absolute; top: 18%; bottom: 18%; left: 50%; width: 1px; background: var(--line-strong); }
.identity-line i { position: absolute; left: 50%; width: 50%; height: 1px; background: var(--line-strong); }
.identity-line i:nth-child(1) { top: 18%; }.identity-line i:nth-child(2) { top: 50%; }.identity-line i:nth-child(3) { top: 82%; }
.product-node { display: flex; align-items: center; gap: 12px; min-height: 68px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }
.product-node.current { border-color: rgba(8, 127, 154, .34); background: var(--accent-soft); }
.product-node img, .node-mark { display: grid; width: 36px; height: 36px; place-items: center; object-fit: contain; border-radius: 10px; background: var(--surface-strong); color: var(--accent-dark); font-weight: 800; }
.product-node span { display: flex; flex-direction: column; }
.product-node b { font-size: 13px; }.product-node small { color: var(--muted); font-size: 10px; }

.vip-section { display: grid; grid-template-columns: 1fr auto; gap: 70px; align-items: end; padding: 58px; border: 1px solid rgba(8, 127, 154, .24); border-radius: 30px; background: linear-gradient(135deg, rgba(221, 242, 245, .75), rgba(252, 254, 254, .82)); }
.vip-copy { max-width: 720px; }
.vip-copy h2 { font-size: clamp(38px, 4.5vw, 58px); }
.vip-copy > p:last-child { margin-top: 24px; }
.vip-state { min-width: 230px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(252, 254, 254, .82); }
.vip-state { display: grid; grid-template-columns: 12px 1fr; gap: 12px; align-items: center; }
.state-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(8, 127, 154, .1); }
.vip-state div { display: flex; flex-direction: column; }.vip-state small { color: var(--muted); font-size: 10px; }.vip-state b { font-size: 13px; }
.vip-state p { grid-column: 1 / -1; margin: 10px 0 0; padding-top: 10px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

.download-section { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; margin-top: 130px; margin-bottom: 100px; padding: 34px 38px; border: 1px solid var(--line); border-radius: 26px; background: var(--surface); box-shadow: 0 22px 64px rgba(16, 69, 79, .08); }
.download-section > img { width: 64px; height: 64px; object-fit: contain; }
.download-section h2 { font-size: clamp(28px, 3.5vw, 43px); }
.download-section p { margin: 6px 0 0; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

.browser-footer { display: grid; grid-template-columns: auto 1fr auto auto; gap: 28px; align-items: center; width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 30px 0 38px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.browser-brand.compact img { width: 28px; height: 28px; }.browser-brand.compact { font-size: 13px; color: var(--ink); }
.browser-footer p { margin: 0; }.browser-footer nav { display: flex; gap: 8px; }.browser-footer nav a { display: inline-flex; align-items: center; min-height: 44px; padding-inline: 4px; }.browser-footer nav a:hover { color: var(--accent-dark); }

@media (prefers-reduced-motion: no-preference) {
  .hero-copy { animation: rise .8s var(--ease) both; }
  .hero-product { animation: rise .9s .12s var(--ease) both; }
  .orbit-note { animation: rise .7s .42s var(--ease) both; }
  @keyframes rise { from { opacity: 0; transform: translateY(22px); } }
}

@media (max-width: 900px) {
  .browser-nav { grid-template-columns: 1fr auto; }.browser-nav nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 148px; }
  .hero-copy { text-align: center; }.hero-kicker, .hero-actions { justify-content: center; }.hero-lead { margin-inline: auto; }
  .hero-product { width: min(350px, 72vw); margin-top: 36px; }.hero-meta { position: static; justify-content: center; grid-column: 1; flex-wrap: wrap; margin-top: 18px; }
  .section-heading, .capability-section, .ai-section, .privacy-section, .account-section { grid-template-columns: 1fr; gap: 42px; }
  .capability-intro { position: static; }
  .screenshot-rail { overflow-x: auto; grid-template-columns: repeat(3, minmax(260px, 72vw)); scroll-snap-type: x mandatory; }.shot { scroll-snap-align: start; }.shot-menu, .shot-settings { margin-top: 0; }
  .ai-shot { justify-self: center; width: min(430px, 80vw); }
  .text-link { margin-top: -22px; }
  .vip-section { grid-template-columns: 1fr; align-items: start; }.vip-state { width: min(100%, 320px); }
  .browser-footer { grid-template-columns: 1fr auto; }.browser-footer p { grid-column: 1 / -1; order: 3; }.browser-footer nav { grid-column: 1 / -1; order: 2; }
}

@media (max-width: 600px) {
  .browser-nav { top: 8px; width: calc(100% - 16px); min-height: 56px; padding: 5px 6px 5px 10px; border-radius: 15px; }.browser-brand span { font-size: 14px; }.browser-brand img { width: 30px; height: 30px; }.nav-download { min-height: 44px; padding-inline: 12px; font-size: 11px; }
  .hero { width: calc(100% - 36px); padding-top: 122px; padding-bottom: 70px; }.hero h1 { font-size: clamp(44px, 13vw, 52px); }.hero-lead { font-size: 15px; }.hero-product { width: min(306px, 78vw); }.note-top { left: -13%; }.note-bottom { right: -14%; }.hero-meta { gap: 4px 10px; }.hero-meta span + span::before { margin-right: 8px; }
  #route-field { right: 0; left: 0; width: 100%; }
  .section { width: calc(100% - 36px); padding: 78px 0; }.section h2 { font-size: 39px; }.section-heading { margin-bottom: 34px; }
  .screenshot-rail { grid-template-columns: repeat(3, minmax(242px, 79vw)); gap: 14px; padding: 14px; border-radius: 22px; }
  .capability-bands article { grid-template-columns: 32px 1fr; gap: 12px; }.capability-bands p { grid-column: 2; }
  .privacy-ledger > div { grid-template-columns: 92px 1fr; padding: 14px 0; }.privacy-ledger em { grid-column: 2; margin-top: -10px; }
  .identity-map { grid-template-columns: 1fr; grid-template-rows: auto; gap: 10px; padding: 18px; }.identity-source { grid-row: auto; min-height: 118px; }.identity-line { display: none; }
  .vip-section { width: calc(100% - 28px); padding: 34px 24px; }
  .download-section { grid-template-columns: auto 1fr; margin-top: 78px; margin-bottom: 70px; padding: 25px 22px; }.download-section > img { width: 48px; height: 48px; }.download-section .button { grid-column: 1 / -1; }.download-section h2 { font-size: 30px; }
  .browser-footer { grid-template-columns: 1fr; width: calc(100% - 36px); gap: 14px; }.browser-footer nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }.browser-footer small { order: 4; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .phone-frame, .ai-shot { transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .browser-nav, .orbit-note { background: var(--surface); backdrop-filter: none; }
}

@media (prefers-color-scheme: dark) {
  :root { --bg:#0d1518;--surface:#142024;--surface-strong:#19282d;--ink:#edf6f7;--muted:#9db0b5;--dim:#7e9297;--accent:#52bfd2;--accent-dark:#72cada;--accent-soft:#173139;--line:rgba(205,237,242,.12);--line-strong:rgba(205,237,242,.22);--shadow:0 30px 80px rgba(0,0,0,.34);color-scheme:dark; }
  body { background:radial-gradient(circle at 78% 11%,rgba(82,191,210,.08),transparent 28rem),var(--bg); }
  .browser-nav { background:rgba(16,27,31,.9);box-shadow:0 14px 38px rgba(0,0,0,.22),inset 0 1px rgba(255,255,255,.04); }
  .nav-download { background:#e8f3f4;color:#102126; }
  .phone-frame,.orbit-note,.download-section { background:rgba(20,32,36,.94); }
  .screenshot-rail { background:rgba(25,40,45,.72);box-shadow:inset 0 1px rgba(255,255,255,.04); }
  .shot img,.ai-shot { background:#fff; }
  .button.quiet { background:rgba(20,32,36,.72); }
}