:root {
  --background: #f5faff;
  --foreground: #071c4f;
  --card: rgba(255, 255, 255, 0.76);
  --card-foreground: #071c4f;
  --primary: #176bff;
  --primary-foreground: #ffffff;
  --secondary: #e8f5ff;
  --secondary-foreground: #0a3b8f;
  --muted: #edf5ff;
  --muted-foreground: #627aa8;
  --border: rgba(89, 139, 207, 0.2);
  --ring: #53dce7;
  --radius: 1rem;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  scroll-snap-type: y proximity;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--foreground);
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { height: auto; }
a:focus-visible,
button:focus-visible { outline: 3px solid rgba(23, 107, 255, .35); outline-offset: 4px; }
[hidden] { display: none !important; }
.snap-section { scroll-snap-align: start; scroll-snap-stop: normal; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-fill { fill: currentColor; }
.heading-line,
.title-line { display: block; width: max-content; max-width: 100%; }
.desktop-break { display: block; }
.hero-description,
.section-heading > p,
.demo-copy > p,
.companion-copy > p,
.scene-copy p,
.download-copy > p { text-wrap: pretty; }

.hero-shell {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 30%, rgba(71, 222, 240, 0.3), transparent 28%),
    radial-gradient(circle at 58% 86%, rgba(126, 101, 255, 0.18), transparent 35%),
    linear-gradient(145deg, #f9fcff 0%, #e8f7ff 43%, #eef1ff 100%);
  isolation: isolate;
}

.hero-shell::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(47, 105, 202, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 105, 202, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
  content: '';
}

.site-nav {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(1180px, calc(100% - 56px));
  height: 88px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  width: fit-content;
  color: #09285d;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  gap: 3px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 13px;
  background: linear-gradient(145deg, #1467ff, #55ddeb);
  box-shadow: 0 10px 22px rgba(24, 105, 255, 0.22), inset 0 1px 1px rgba(255,255,255,.5);
}
.brand-mark i {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 0 8px rgba(255,255,255,.8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #4d658e;
  font-size: 14px;
  font-weight: 600;
}
.nav-links a,
.nav-cta,
.primary-button,
.secondary-button {
  transition: transform 180ms ease, color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.nav-links a:hover { color: #1265eb; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-self: end;
  gap: 7px;
  padding: 10px 17px;
  border: 1px solid rgba(37, 105, 210, 0.12);
  border-radius: 999px;
  background: rgba(255,255,255,.64);
  box-shadow: 0 10px 30px rgba(36, 88, 166, 0.08);
  color: #17458d;
  font-size: 14px;
  font-weight: 700;
  backdrop-filter: blur(14px);
}
.nav-cta:hover,
.secondary-button:hover { transform: translateY(-2px); background: white; }

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  align-items: center;
  width: min(1180px, calc(100% - 56px));
  min-height: calc(100svh - 130px);
  margin: -8px auto 0;
  gap: 56px;
}

.hero-copy { position: relative; z-index: 5; padding-bottom: 48px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid rgba(23, 107, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 12px 30px rgba(35, 104, 197, 0.08);
  color: #176bff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  backdrop-filter: blur(14px);
}

.hero-copy h1 {
  margin: 27px 0 22px;
  color: #071d50;
  font-size: clamp(52px, 5.3vw, 78px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.04;
}
.hero-copy h1 .title-line + .title-line { margin-top: .14em; }
.hero-copy h1 .title-gradient {
  background: linear-gradient(96deg, #1268fa 12%, #596fe9 58%, #13b7cc 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-description {
  max-width: 560px;
  margin: 0;
  color: #506b98;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.85;
}

.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 32px; }
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 23px;
  border-radius: 17px;
  font-size: 15px;
  font-weight: 800;
}
.primary-button {
  background: linear-gradient(100deg, #176bff, #4a77f2 62%, #20c3db);
  box-shadow: 0 16px 34px rgba(23, 107, 255, 0.27), inset 0 1px 1px rgba(255,255,255,.35);
  color: white;
}
.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 42px rgba(23, 107, 255, 0.34), inset 0 1px 1px rgba(255,255,255,.35);
}
.secondary-button {
  border: 1px solid rgba(57, 105, 183, 0.13);
  background: rgba(255,255,255,.62);
  color: #315485;
  backdrop-filter: blur(12px);
}

.capability-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 29px;
  color: #7187ab;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .03em;
}
.capability-line i { width: 3px; height: 3px; border-radius: 50%; background: #7ccbdc; }

.hero-product {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 730px;
  padding-top: 30px;
}
.phone-halo {
  position: absolute;
  width: 540px;
  height: 540px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.96) 0%, rgba(186,240,255,.54) 48%, rgba(98,155,255,.08) 70%, transparent 72%);
  box-shadow: 0 0 100px rgba(91, 215, 240, .38);
}
.phone-frame {
  position: relative;
  z-index: 3;
  width: 312px;
  padding: 9px;
  overflow: hidden;
  border: 2px solid rgba(255,255,255,.95);
  border-radius: 44px;
  background: rgba(255,255,255,.68);
  box-shadow: 0 38px 90px rgba(41, 80, 151, 0.24), 0 0 0 8px rgba(126, 190, 255, 0.08);
  transform: none;
  backdrop-filter: blur(12px);
}
.phone-frame::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(43, 105, 199, .15);
  content: '';
  pointer-events: none;
}
.phone-frame img { display: block; width: 100%; border-radius: 35px; }
.phone-speaker {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 50%;
  width: 62px;
  height: 17px;
  border-radius: 999px;
  background: rgba(6, 27, 66, .95);
  transform: translateX(-50%);
}

.signal {
  position: absolute;
  z-index: 5;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 11px;
  min-width: 260px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,.92);
  border-radius: 19px;
  background: rgba(255,255,255,.68);
  box-shadow: 0 18px 48px rgba(43, 88, 162, .15);
  backdrop-filter: blur(18px);
}
.signal-context { top: 180px; left: 0; }
.signal-agent { right: -10px; bottom: 142px; }
.signal-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  color: white;
}
.signal-icon.blue { background: linear-gradient(145deg, #347cff, #38c9e1); box-shadow: 0 8px 20px rgba(33, 133, 240, .24); }
.signal-icon.violet { background: linear-gradient(145deg, #6858f4, #b573f7); box-shadow: 0 8px 20px rgba(100, 75, 230, .23); }
.signal strong,
.signal small { display: block; }
.signal strong { color: #173666; font-size: 13px; font-weight: 800; }
.signal small { margin-top: 4px; color: #7287aa; font-size: 11px; font-weight: 600; }
.live-dot {
  width: 8px;
  height: 8px;
  border: 2px solid rgba(255,255,255,.9);
  border-radius: 50%;
  background: #21c99d;
  box-shadow: 0 0 0 5px rgba(33,201,157,.12);
}

.mascot-chip {
  position: absolute;
  right: 14px;
  top: 52px;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #557096;
  font-size: 12px;
  font-weight: 700;
}
.mascot-chip img { width: 92px; filter: drop-shadow(0 16px 22px rgba(43, 88, 162, .2)); }

.hero-orb {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(255,255,255,.62);
  border-radius: 50%;
  background: rgba(255,255,255,.13);
  box-shadow: inset 0 0 30px rgba(255,255,255,.35);
}
.hero-orb-one { top: 22%; left: -70px; width: 180px; height: 180px; }
.hero-orb-two { right: 3%; bottom: 5%; width: 100px; height: 100px; }
.scroll-cue {
  position: absolute;
  bottom: 22px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #7790b6;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  transform: translateX(-50%);
}
.promise-section {
  position: relative;
  overflow: hidden;
  padding: 132px 0 150px;
  background:
    radial-gradient(circle at 8% 28%, rgba(49, 205, 232, .1), transparent 24%),
    radial-gradient(circle at 95% 74%, rgba(119, 100, 245, .08), transparent 27%),
    #f9fcff;
}
.promise-section::before {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(24, 102, 214, .08) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, transparent, black 32%, transparent 78%);
  content: '';
  pointer-events: none;
}
.section-heading,
.ability-grid,
.feature-demo,
.companion-inner,
.scene-grid,
.download-inner,
.site-footer {
  position: relative;
  width: min(1180px, calc(100% - 56px));
  margin-inline: auto;
}
.section-heading { text-align: center; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #2a73eb;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .18em;
}
.section-kicker::before { width: 22px; height: 1px; background: currentColor; content: ''; }
.section-kicker.light { color: #7fe1ff; }
.section-heading h2,
.demo-header h2,
.companion-copy h2,
.download-copy h2 {
  color: #0a2354;
  font-size: clamp(39px, 4vw, 58px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.18;
}
.section-heading h2 .heading-line,
.demo-header h2 .heading-line { margin-inline: auto; }
.demo-header h2 .heading-line { margin-inline: 0; }
.heading-line + .heading-line { margin-top: .08em; }
.promise-heading h2 { margin: 22px 0 20px; }
.section-heading > p {
  max-width: 680px;
  margin: 0 auto;
  color: #627ca6;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.85;
}

.ability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 62px;
}
.ability-card {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  padding: 30px;
  border: 1px solid rgba(92, 148, 222, .14);
  border-radius: 30px;
  background: rgba(255,255,255,.76);
  box-shadow: 0 24px 70px rgba(43, 87, 151, .08);
  transition: transform 240ms ease, box-shadow 240ms ease;
}
.ability-card::after {
  position: absolute;
  right: -58px;
  bottom: -64px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  content: '';
}
.ability-card:hover { transform: translateY(-6px); box-shadow: 0 30px 78px rgba(43, 87, 151, .13); }
.ability-blue::after { background: radial-gradient(circle, rgba(47, 146, 255, .28), transparent 68%); }
.ability-pink::after { background: radial-gradient(circle, rgba(255, 108, 167, .24), transparent 68%); }
.ability-violet::after { background: radial-gradient(circle, rgba(128, 91, 244, .24), transparent 68%); }
.ability-index { position: absolute; top: 30px; right: 30px; color: #a5b6d1; font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.ability-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(145deg, #edf6ff, #dcecff);
  box-shadow: inset 0 1px 1px white, 0 10px 24px rgba(57, 115, 201, .12);
  color: #176bff;
}
.ability-pink .ability-icon { background: linear-gradient(145deg, #fff0f6, #ffe3ef); color: #f25094; }
.ability-violet .ability-icon { background: linear-gradient(145deg, #f3efff, #e9e0ff); color: #7456e9; }
.ability-card h3 { margin: 35px 0 13px; color: #0d2b5d; font-size: 25px; font-weight: 900; letter-spacing: -0.015em; }
.ability-card p { max-width: 290px; margin: 0; color: #7086aa; font-size: 14px; font-weight: 500; line-height: 1.8; }
.ability-arrow { position: absolute; right: 30px; bottom: 28px; display: grid; width: 34px; height: 34px; place-items: center; border-radius: 50%; background: white; box-shadow: 0 10px 24px rgba(50, 91, 151, .12); color: #5575a6; }

.feature-demo { margin-top: 140px; }
.feature-tabs { display: flex; flex-direction: column; gap: 34px; }
.demo-header { display: flex; align-items: end; justify-content: space-between; gap: 36px; }
.demo-header h2 { max-width: 620px; margin: 18px 0 0; font-size: clamp(36px, 3.4vw, 50px); }
.demo-tabs-list {
  display: inline-flex;
  width: auto;
  height: auto !important;
  gap: 5px;
  padding: 6px;
  border: 1px solid rgba(68, 126, 210, .12);
  border-radius: 18px;
  background: rgba(231, 242, 255, .72);
}
.demo-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex: none !important;
  height: 42px !important;
  padding: 0 15px !important;
  border: 0;
  border-radius: 13px !important;
  background: transparent;
  color: #6880a6 !important;
  font-family: inherit;
  font-size: 13px !important;
  font-weight: 800 !important;
  cursor: pointer;
}
.demo-tab.is-active { background: white !important; box-shadow: 0 9px 22px rgba(50, 99, 165, .12) !important; color: #145fcf !important; }
.demo-panel {
  display: grid;
  grid-template-columns: .84fr 1.16fr;
  min-height: 660px;
  overflow: hidden;
  border: 1px solid rgba(87, 139, 213, .14);
  border-radius: 38px;
  background: rgba(255,255,255,.8);
  box-shadow: 0 36px 100px rgba(44, 86, 148, .12);
}
.demo-copy { display: flex; flex-direction: column; justify-content: center; padding: 70px 36px 70px 62px; }
.demo-number { color: #3b7cec; font-size: 11px; font-weight: 900; letter-spacing: .15em; }
.demo-copy h3 { margin: 22px 0 20px; color: #0b285a; font-size: clamp(36px, 3.4vw, 50px); font-weight: 900; letter-spacing: -0.025em; line-height: 1.16; }
.demo-copy > p { max-width: 430px; margin: 0; color: #657fa8; font-size: 15px; line-height: 1.9; }
.demo-copy ul { display: grid; gap: 13px; margin: 28px 0 0; padding: 0; list-style: none; }
.demo-copy li { display: flex; align-items: center; gap: 10px; color: #3e5c89; font-size: 13px; font-weight: 650; }
.demo-copy li svg { width: 18px; height: 18px; padding: 4px; border-radius: 50%; background: #def7f1; color: #11aa86; }
.demo-visual { position: relative; display: flex; align-items: center; justify-content: center; min-width: 0; overflow: hidden; }
.visual-reply { background: linear-gradient(145deg, #e2f5ff, #e6eeff 56%, #f1eaff); }
.visual-create { background: linear-gradient(145deg, #e5f6ff, #e8ecff 48%, #f4eaff); }
.visual-action { background: linear-gradient(145deg, #dff8ff, #e4f2ff 44%, #eee8ff); }
.demo-glow { position: absolute; width: 470px; height: 470px; border: 1px solid rgba(255,255,255,.75); border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.92), rgba(130,207,255,.18) 55%, transparent 72%); }
.screen-card {
  position: relative;
  z-index: 2;
  width: 292px;
  max-height: 590px;
  padding: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 38px;
  background: rgba(255,255,255,.6);
  box-shadow: 0 30px 68px rgba(36, 79, 151, .22);
  transform: none;
}
.screen-card img { display: block; width: 100%; border-radius: 31px; }
.screen-reply { max-height: 560px; transform: translateX(28px); }
.screen-create { max-height: 590px; transform: translateX(38px); }
.screen-action { max-height: 590px; transform: translateX(36px); }
.reply-note,
.create-prompt,
.create-tags,
.action-status {
  position: absolute;
  z-index: 4;
  border: 1px solid rgba(255,255,255,.9);
  background: rgba(255,255,255,.79);
  box-shadow: 0 18px 46px rgba(38, 81, 151, .15);
  backdrop-filter: blur(16px);
}
.reply-note-one { left: 24px; bottom: 102px; width: 275px; padding: 16px; border-radius: 18px; }
.reply-note-one span { display: block; margin-bottom: 6px; color: #7b8eae; font-size: 10px; font-weight: 800; }
.reply-note-one strong { color: #24456f; font-size: 12px; line-height: 1.6; }
.reply-note-two { top: 112px; right: 22px; display: flex; align-items: center; gap: 7px; padding: 10px 13px; border-radius: 999px; color: #1e9f7f; font-size: 11px; font-weight: 800; }
.create-prompt { left: 28px; top: 115px; display: flex; align-items: center; gap: 8px; width: 270px; padding: 14px; border-radius: 16px; color: #405d8a; font-size: 11px; font-weight: 750; }
.create-prompt svg { color: #785ae9; }
.create-tags { right: 18px; bottom: 82px; display: flex; gap: 6px; padding: 10px; border-radius: 15px; }
.create-tags span { padding: 6px 8px; border-radius: 999px; background: #edf2ff; color: #586f9c; font-size: 9px; font-weight: 800; }
.action-status { left: 22px; bottom: 88px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; width: 280px; padding: 15px; border-radius: 19px; }
.action-status small,
.action-status strong { display: block; }
.action-status small { color: #20a889; font-size: 9px; font-weight: 800; }
.action-status strong { margin-top: 3px; color: #274671; font-size: 12px; }
.action-status b { color: #748aad; font-size: 11px; }

.companion-section {
  position: relative;
  overflow: hidden;
  padding: 145px 0;
  background:
    radial-gradient(circle at 27% 52%, rgba(35, 184, 240, .18), transparent 28%),
    radial-gradient(circle at 77% 31%, rgba(119, 83, 241, .2), transparent 30%),
    linear-gradient(135deg, #061a42, #0a2e67 48%, #171b56);
}
.companion-section::before { position: absolute; inset: 0; background: linear-gradient(118deg, transparent 30%, rgba(255,255,255,.04) 50%, transparent 67%); content: ''; }
.companion-stars { position: absolute; inset: 0; background-image: radial-gradient(circle, rgba(255,255,255,.55) 1px, transparent 1.5px); background-size: 72px 72px; opacity: .35; mask-image: radial-gradient(circle at 50%, black, transparent 70%); }
.companion-inner { display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 88px; }
.companion-visual { position: relative; display: grid; min-height: 680px; place-items: center; }
.companion-orbit { position: absolute; border: 1px solid rgba(116, 221, 255, .2); border-radius: 50%; transform: rotate(-14deg); }
.orbit-one { width: 560px; height: 420px; box-shadow: 0 0 60px rgba(40, 195, 255, .08); }
.orbit-two { width: 410px; height: 560px; transform: rotate(24deg); }
.companion-phone { position: relative; z-index: 2; width: 318px; padding: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,.32); border-radius: 42px; background: rgba(255,255,255,.12); box-shadow: 0 45px 100px rgba(0, 7, 27, .45), 0 0 70px rgba(66, 205, 255,.16); transform: none; }
.companion-phone img { display: block; width: 100%; border-radius: 34px; }
.companion-float { position: absolute; z-index: 4; display: flex; align-items: center; gap: 11px; padding: 14px 17px; border: 1px solid rgba(255,255,255,.2); border-radius: 18px; background: rgba(16, 42, 92, .65); box-shadow: 0 22px 44px rgba(0, 10, 40, .35); color: #72d9ff; backdrop-filter: blur(18px); }
.companion-float span { display: block; }
.companion-float small,
.companion-float strong { display: block; }
.companion-float small { color: #8ca8d2; font-size: 9px; font-weight: 800; }
.companion-float strong { margin-top: 3px; color: white; font-size: 12px; }
.float-knowledge { top: 145px; right: 5px; }
.float-memory { bottom: 120px; left: -4px; color: #d99bff; }
.companion-copy h2 { margin: 24px 0 25px; color: white; }
.companion-copy h2 { font-size: clamp(39px, 3.5vw, 52px); }
.companion-copy h2 .title-gradient-light { background: linear-gradient(96deg, #70e1ff, #a996ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.companion-copy > p { max-width: 520px; margin: 0; color: #a8bddf; font-size: 16px; line-height: 1.9; }
.companion-points { display: grid; gap: 18px; margin-top: 36px; }
.companion-points > div { display: flex; align-items: center; gap: 15px; }
.companion-points > div > span { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; border: 1px solid rgba(117, 218, 255, .14); border-radius: 15px; background: rgba(85, 154, 234, .12); color: #71dcfa; }
.companion-points p { margin: 0; }
.companion-points strong,
.companion-points small { display: block; }
.companion-points strong { color: #edf6ff; font-size: 14px; }
.companion-points small { margin-top: 5px; color: #859fc8; font-size: 12px; }
.companion-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 38px; color: #79dcf7; font-size: 13px; font-weight: 800; }

.scenes-section { padding: 140px 0 150px; background: #f6faff; }
.scenes-heading h2 { margin: 22px 0 18px; }
.scene-grid { display: grid; grid-template-columns: 1.12fr .88fr; grid-template-rows: repeat(2, minmax(300px, auto)); gap: 18px; margin-top: 64px; }
.scene-card { position: relative; overflow: hidden; border: 1px solid rgba(89, 141, 211, .13); border-radius: 32px; background: white; box-shadow: 0 24px 70px rgba(43, 82, 142, .08); }
.scene-large { grid-row: span 2; min-height: 660px; background: linear-gradient(145deg, #f7fbff, #e8f5ff); }
.scene-content { min-height: 320px; background: linear-gradient(145deg, #fff8fb, #f9edff); }
.scene-knowledge { min-height: 320px; background: linear-gradient(145deg, #f7fffc, #e9f9f8); }
.scene-copy { position: relative; z-index: 4; padding: 34px; }
.scene-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 14px; background: #e5f2ff; color: #176bff; }
.scene-icon svg { width: 20px; }
.scene-icon.coral { background: #ffe6f0; color: #f14c8d; }
.scene-icon.mint { background: #daf7ed; color: #16aa87; }
.scene-copy h3 { max-width: 420px; margin: 22px 0 12px; color: #102e5e; font-size: 26px; font-weight: 900; letter-spacing: -0.015em; line-height: 1.35; }
.scene-copy p { max-width: 420px; margin: 0; color: #6c83a7; font-size: 14px; line-height: 1.75; }
.scene-copy a { display: inline-flex; align-items: center; gap: 4px; margin-top: 20px; color: #236dd8; font-size: 12px; font-weight: 800; }
.chat-sample { position: absolute; right: 38px; bottom: 36px; left: 38px; display: flex; flex-direction: column; min-height: 325px; padding: 26px; border: 1px solid rgba(255,255,255,.88); border-radius: 27px; background: rgba(255,255,255,.68); box-shadow: 0 22px 60px rgba(46, 90, 153, .1); backdrop-filter: blur(15px); }
.chat-time { align-self: center; color: #98a9c2; font-size: 9px; }
.chat-bubble { max-width: 78%; margin-top: 19px; padding: 13px 15px; border-radius: 17px; font-size: 12px; line-height: 1.65; }
.chat-bubble.incoming { align-self: flex-start; border-bottom-left-radius: 5px; background: white; color: #536b91; }
.chat-ai { display: flex; align-items: center; gap: 5px; margin: 25px 0 -8px; color: #6857da; font-size: 10px; font-weight: 800; }
.chat-bubble.outgoing { align-self: flex-end; border-bottom-right-radius: 5px; background: linear-gradient(135deg, #357bff, #6e6be9); box-shadow: 0 12px 24px rgba(62, 99, 221, .2); color: white; }
.chat-sample button { display: inline-flex; align-items: center; align-self: flex-end; gap: 6px; margin-top: 12px; padding: 8px 11px; border: 0; border-radius: 10px; background: rgba(255,255,255,.8); color: #4d6a98; font-family: inherit; font-size: 10px; font-weight: 800; cursor: pointer; }
.content-stack { position: absolute; right: 30px; bottom: 28px; left: 30px; display: flex; gap: 9px; }
.content-stack div { display: flex; flex: 1; align-items: center; gap: 7px; padding: 13px 12px; border: 1px solid rgba(255,255,255,.9); border-radius: 15px; background: rgba(255,255,255,.7); box-shadow: 0 10px 30px rgba(116, 74, 144, .08); color: #5c628b; font-size: 10px; font-weight: 800; }
.content-stack svg { width: 15px; color: #df5a99; }
.folder-stack { position: absolute; right: 32px; bottom: 32px; left: 32px; height: 108px; }
.folder { position: absolute; display: flex; flex-direction: column; justify-content: center; width: 80%; height: 78px; padding: 0 18px; border: 1px solid rgba(255,255,255,.9); border-radius: 17px; background: rgba(255,255,255,.76); box-shadow: 0 15px 34px rgba(35, 121, 105, .1); }
.folder::before { position: absolute; top: -8px; left: 16px; width: 55px; height: 16px; border-radius: 8px 8px 0 0; background: inherit; content: ''; }
.folder-one { top: 0; left: 0; transform: rotate(-2deg); }
.folder-two { right: 0; bottom: 0; transform: rotate(2deg); }
.folder span { color: #315f69; font-size: 11px; font-weight: 900; }
.folder small { margin-top: 5px; color: #80a0a5; font-size: 9px; }

.download-section { padding: 42px; background: #f6faff; }
.download-inner { display: grid; grid-template-columns: 1fr .86fr; min-height: 520px; overflow: hidden; border-radius: 44px; background: radial-gradient(circle at 76% 42%, rgba(83, 224, 240, .34), transparent 24%), radial-gradient(circle at 92% 80%, rgba(134, 93, 244, .34), transparent 29%), linear-gradient(125deg, #0a3b92, #156bea 55%, #4d53d3); box-shadow: 0 35px 90px rgba(20, 75, 168, .28); }
.download-copy { display: flex; flex-direction: column; justify-content: center; padding: 72px 0 72px 76px; }
.download-copy h2 { margin: 22px 0 18px; color: white; }
.download-copy > p { max-width: 520px; margin: 0; color: #bed8ff; font-size: 15px; line-height: 1.85; }
.download-actions { display: flex; align-items: center; gap: 20px; margin-top: 30px; }
.coming-button { display: inline-flex; align-items: center; gap: 9px; min-height: 50px; padding: 0 20px; border: 1px solid rgba(255,255,255,.35); border-radius: 16px; background: rgba(255,255,255,.92); box-shadow: 0 18px 38px rgba(6, 38, 104, .25); color: #195cc8; font-size: 13px; font-weight: 900; }
.download-actions a { display: inline-flex; align-items: center; gap: 7px; color: #d7e7ff; font-size: 12px; font-weight: 800; }
.download-mascot { position: relative; display: flex; align-items: center; justify-content: center; }
.download-mascot::before { position: absolute; width: 350px; height: 350px; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.23), transparent 66%); content: ''; }
.download-mascot > img { position: relative; z-index: 2; width: 330px; filter: drop-shadow(0 35px 34px rgba(5, 31, 91, .28)); }
.mascot-message { position: absolute; right: 55px; bottom: 62px; z-index: 4; padding: 13px 16px; border: 1px solid rgba(255,255,255,.38); border-radius: 16px; background: rgba(255,255,255,.84); box-shadow: 0 18px 38px rgba(16, 49, 113, .2); backdrop-filter: blur(14px); }
.mascot-message strong,
.mascot-message small { display: block; }
.mascot-message strong { color: #174b9c; font-size: 12px; }
.mascot-message small { margin-top: 4px; color: #6f8db9; font-size: 9px; }
.spark { position: absolute; z-index: 3; color: #fff; text-shadow: 0 0 18px rgba(255,255,255,.8); }
.spark-one { top: 84px; right: 86px; font-size: 33px; }
.spark-two { left: 52px; bottom: 90px; font-size: 20px; }

.site-footer { display: flex; flex-direction: column; gap: 32px; padding: 62px 0 34px; }
.footer-main { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; }
.footer-brand { grid-column: 1; }
.footer-main > p { grid-column: 1; margin: 0; color: #7c91b0; font-size: 12px; }
.footer-main nav { grid-column: 2; grid-row: 1; display: flex; gap: 26px; color: #5d7599; font-size: 12px; font-weight: 700; }
.footer-legal { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; border-top: 1px solid rgba(79, 117, 176, .12); color: #9aaac1; font-size: 11px; }
.footer-legal a { transition: color 180ms ease; }
.footer-legal a:hover { color: #2f6ec7; }

@media (max-width: 1040px) {
  .hero-content { grid-template-columns: .88fr 1.12fr; gap: 24px; }
  .phone-frame { width: 280px; }
  .signal-context { left: -20px; }
  .signal-agent { right: -18px; }
  .demo-panel { grid-template-columns: .78fr 1.22fr; }
  .demo-copy { padding-left: 42px; }
  .companion-inner { gap: 38px; }
  .companion-phone { width: 288px; }
  .orbit-one { width: 470px; }
  .download-copy { padding-left: 52px; }
}

@media (max-width: 820px) {
  html { scroll-snap-type: none; }
  .site-nav { grid-template-columns: 1fr auto; width: min(100% - 36px, 680px); }
  .nav-links { display: none; }
  .hero-content {
    grid-template-columns: 1fr;
    width: min(100% - 36px, 680px);
    padding-top: 62px;
    text-align: center;
  }
  .hero-copy { padding-bottom: 0; }
  .hero-copy .title-line { margin-inline: auto; }
  .hero-description { margin-inline: auto; }
  .hero-actions,
  .capability-line { justify-content: center; }
  .hero-product { min-height: 680px; }
  .scroll-cue { display: none; }
  .section-heading,
  .ability-grid,
  .feature-demo,
  .companion-inner,
  .scene-grid,
  .download-inner,
  .site-footer { width: min(100% - 36px, 680px); }
  .promise-section,
  .scenes-section { padding: 105px 0; }
  .ability-grid { grid-template-columns: 1fr; }
  .ability-card { min-height: 250px; }
  .feature-demo { margin-top: 100px; }
  .demo-header { align-items: flex-start; flex-direction: column; }
  .demo-tabs-list { width: 100%; }
  .demo-tab { flex: 1 !important; }
  .demo-panel { grid-template-columns: 1fr; }
  .demo-copy { padding: 54px; }
  .demo-visual { min-height: 620px; }
  .companion-section { padding: 105px 0; }
  .companion-inner { grid-template-columns: 1fr; gap: 42px; }
  .companion-copy { order: 1; text-align: center; }
  .companion-copy .heading-line { margin-inline: auto; }
  .companion-copy > p { margin-inline: auto; }
  .companion-points { width: min(100%, 500px); margin-inline: auto; text-align: left; }
  .companion-visual { order: 2; min-height: 650px; }
  .scene-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .scene-large { grid-row: auto; }
  .scene-content,
  .scene-knowledge { min-height: 360px; }
  .download-section { padding: 24px 0; }
  .download-inner { grid-template-columns: 1fr; }
  .download-copy { padding: 64px 52px 20px; text-align: center; }
  .download-copy > p { margin-inline: auto; }
  .download-actions { justify-content: center; }
  .download-mascot { min-height: 400px; }
  .footer-main { grid-template-columns: 1fr; text-align: center; }
  .footer-brand,
  .footer-main > p,
  .footer-main nav { grid-column: 1; grid-row: auto; justify-self: center; }
}

@media (max-width: 560px) {
  .site-nav { height: 74px; }
  .brand { font-size: 17px; }
  .nav-cta { padding: 9px 13px; }
  .desktop-break { display: none; }
  .hero-content { padding-top: 42px; }
  .hero-copy h1 { margin-top: 22px; font-size: clamp(42px, 13vw, 62px); }
  .hero-description { font-size: 16px; line-height: 1.75; }
  .hero-actions { flex-direction: column; }
  .primary-button,
  .secondary-button { width: 100%; }
  .hero-product { min-height: 620px; }
  .phone-frame { width: 248px; border-radius: 36px; }
  .phone-frame img { border-radius: 28px; }
  .phone-halo { width: 390px; height: 390px; }
  .signal { min-width: 220px; padding: 11px 12px; }
  .signal-context { top: 155px; left: -8px; }
  .signal-agent { right: -8px; bottom: 90px; }
  .mascot-chip { right: -2px; top: 32px; }
  .mascot-chip img { width: 76px; }
  .mascot-chip span { display: none; }
  .promise-section,
  .scenes-section { padding: 82px 0; }
  .section-heading h2,
  .companion-copy h2,
  .download-copy h2 { font-size: 38px; }
  .section-heading > p { font-size: 15px; }
  .ability-grid { margin-top: 42px; }
  .ability-card { padding: 25px; border-radius: 25px; }
  .ability-index { top: 25px; right: 25px; }
  .feature-demo { margin-top: 84px; }
  .demo-header h2 { font-size: 34px; }
  .demo-tabs-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; overflow: visible; }
  .demo-tab { height: 52px !important; padding: 0 7px !important; white-space: normal !important; font-size: 11px !important; }
  .demo-panel { border-radius: 28px; }
  .demo-copy { padding: 42px 28px; }
  .demo-copy h3 { font-size: 36px; }
  .demo-visual { min-height: 530px; }
  .screen-card { width: 245px; }
  .screen-reply { transform: translateX(20px); }
  .screen-create,
  .screen-action { transform: translateX(24px); }
  .reply-note-one,
  .create-prompt,
  .action-status { left: 12px; width: 230px; }
  .reply-note-two { top: 70px; right: 10px; }
  .create-tags { right: 8px; bottom: 38px; }
  .companion-section { padding: 82px 0; }
  .companion-visual { min-height: 570px; }
  .companion-phone { width: 252px; border-radius: 35px; }
  .orbit-one { width: 370px; height: 330px; }
  .orbit-two { width: 300px; height: 430px; }
  .float-knowledge { top: 92px; right: -4px; }
  .float-memory { bottom: 72px; left: -4px; }
  .scene-grid { margin-top: 44px; }
  .scene-card { border-radius: 26px; }
  .scene-copy { padding: 28px; }
  .scene-copy h3 { font-size: 23px; }
  .scene-large { min-height: 650px; }
  .chat-sample { right: 20px; bottom: 22px; left: 20px; padding: 20px; }
  .content-stack { right: 20px; left: 20px; }
  .content-stack div { flex-direction: column; justify-content: center; text-align: center; }
  .download-section { padding: 16px 0; }
  .download-inner { border-radius: 30px; }
  .download-copy { padding: 52px 24px 6px; }
  .download-actions { flex-direction: column; }
  .download-mascot { min-height: 350px; }
  .download-mascot > img { width: 260px; }
  .mascot-message { right: 16px; bottom: 34px; }
  .footer-main nav { flex-wrap: wrap; justify-content: center; }
  .footer-legal { flex-direction: column; gap: 10px; justify-content: center; }
}

@media (max-height: 720px) and (min-width: 821px) {
  html { scroll-snap-type: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; scroll-snap-type: none; }
  * { transition-duration: 0.01ms !important; }
}