:root {
  color-scheme: dark;
  --ink: #f7f8fb;
  --muted: #aab3c7;
  --dim: #73809b;
  --night: #080d19;
  --night-2: #0d1425;
  --panel: #121a2d;
  --line: rgba(158, 177, 216, 0.16);
  --moon: #9bb1dd;
  --orange: #ff9e4f;
  --green: #4cc38a;
  --danger: #ec756f;
  --radius-s: 14px;
  --radius-m: 24px;
  --radius-l: 38px;
  --shell: min(1180px, calc(100vw - 48px));
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  background: var(--night);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 4%, rgba(116, 142, 201, .08), transparent 24rem),
    var(--night);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { color: #111827; background: #ffc48f; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #080d19; }
::-webkit-scrollbar-thumb { border: 3px solid #080d19; border-radius: 999px; background: #3a465f; }

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

:focus-visible {
  outline: 3px solid rgba(255, 158, 79, .72);
  outline-offset: 4px;
  border-radius: 10px;
}

.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;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--orange);
  color: #111827;
  transform: translateY(-150%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  top: 16px;
  left: 50%;
  width: min(1180px, calc(100vw - 32px));
  min-height: 68px;
  padding: 10px 12px 10px 16px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 24px;
  transform: translateX(-50%);
  transition: background .35s ease, border-color .35s ease, box-shadow .35s ease, top .35s ease;
}

.site-header.is-scrolled {
  top: 10px;
  background: rgba(11, 17, 31, .78);
  border-color: rgba(172, 188, 222, .14);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .24);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
  backdrop-filter: blur(20px) saturate(130%);
}

.brand { display: inline-flex; align-items: center; gap: 11px; width: max-content; font-weight: 720; letter-spacing: .03em; }
.brand img { width: 40px; height: 40px; border-radius: 12px; box-shadow: 0 8px 24px rgba(80, 104, 154, .28); }
.brand span { font-size: 18px; }

.desktop-nav { display: flex; align-items: center; gap: 32px; color: #c8cfdd; font-size: 14px; }
.desktop-nav a { position: relative; padding: 14px 0; transition: color .2s ease; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 7px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--orange);
  opacity: 0;
  transform: translate(-50%, 5px);
  transition: opacity .2s ease, transform .2s ease;
}
.desktop-nav a:hover { color: #fff; }
.desktop-nav a:hover::after { opacity: 1; transform: translate(-50%, 0); }

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 14px;
  color: #151a23;
  background: var(--orange);
  font-size: 14px;
  font-weight: 680;
  transition: transform .25s var(--ease), box-shadow .25s ease, background .25s ease;
}
.header-cta svg, .primary-button svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.header-cta:hover { background: #ffb475; box-shadow: 0 12px 28px rgba(255, 158, 79, .24); transform: translateY(-2px); }

.menu-button, .mobile-nav { display: none; }

main { overflow: clip; }

.hero {
  position: relative;
  min-height: 780px;
  height: max(780px, 100svh);
  display: grid;
  grid-template-columns: minmax(340px, .82fr) minmax(560px, 1.18fr);
  align-items: center;
  gap: 24px;
  padding: 110px max(24px, calc((100vw - 1180px) / 2)) 60px;
  isolation: isolate;
  background:
    linear-gradient(180deg, rgba(6, 10, 19, .02) 60%, #080d19 100%),
    radial-gradient(circle at 73% 40%, rgba(90, 116, 172, .12), transparent 24rem),
    #080d19;
}

.night-canvas, .dawn-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.night-canvas { z-index: -3; opacity: .8; }
.hero-glow { position: absolute; z-index: -2; border-radius: 50%; filter: blur(8px); pointer-events: none; }
.hero-glow--moon { top: 15%; right: 27%; width: 350px; height: 350px; background: rgba(100, 130, 190, .09); box-shadow: 0 0 120px rgba(109, 139, 201, .12); }
.hero-glow--dawn { right: -9%; bottom: -17%; width: 520px; height: 520px; background: rgba(255, 157, 79, .12); filter: blur(38px); }

.hero-copy { position: relative; z-index: 6; align-self: center; padding-bottom: 10px; }
.hero h1 {
  margin: 0;
  max-width: 7ch;
  font-size: clamp(64px, 6vw, 92px);
  line-height: .98;
  letter-spacing: -.065em;
  font-weight: 760;
}
.hero-copy > p:not(.platform-note) {
  max-width: 540px;
  margin: 32px 0 0;
  color: #b8c0d0;
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.85;
}
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 38px; }
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 17px;
  color: #161b24;
  background: var(--orange);
  font-size: 16px;
  font-weight: 720;
  box-shadow: 0 14px 38px rgba(255, 158, 79, .18);
  transition: transform .3s var(--ease), box-shadow .3s ease, background .3s ease;
}
.primary-button:hover { background: #ffb16e; box-shadow: 0 18px 44px rgba(255, 158, 79, .28); transform: translateY(-3px); }
.text-link { color: #d9deea; font-size: 15px; border-bottom: 1px solid rgba(217, 222, 234, .32); padding: 10px 0 8px; transition: color .2s ease, border-color .2s ease; }
.text-link:hover { color: #fff; border-color: var(--orange); }
.platform-note { display: flex; align-items: center; gap: 9px; margin: 24px 0 0; color: #7f8ca5; font-size: 13px; }
.platform-note svg { width: 17px; fill: currentColor; }

.hero-stage {
  position: relative;
  z-index: 2;
  width: min(720px, 54vw);
  height: min(590px, 72vh);
  min-height: 520px;
  justify-self: end;
  perspective: 1400px;
  transform-style: preserve-3d;
}
.orbit { position: absolute; inset: 2% -3% 0 -5%; width: 108%; height: 100%; overflow: visible; pointer-events: none; }
.orbit-shadow, .orbit-path { fill: none; }
.orbit-shadow { stroke: rgba(147, 169, 214, .09); stroke-width: 16; filter: blur(10px); }
.orbit-path { stroke: url(#orbitGradient); stroke-width: 2; stroke-linecap: round; stroke-dasharray: .012 .017; opacity: .86; }
.orbit-pulse { fill: #ffad68; }

.stage-phone { position: absolute; transform-style: preserve-3d; will-change: transform; transition: transform .55s var(--ease); }
.stage-phone--main { z-index: 4; width: min(260px, 20vw); left: 33%; top: 0; transform: translate3d(calc(var(--px, 0) * 16px), calc(var(--py, 0) * 11px), 90px) rotateY(-7deg) rotateX(2deg) rotateZ(2deg); }
.stage-phone--result { z-index: 3; width: min(190px, 15vw); right: 2%; top: 17%; opacity: .93; transform: translate3d(calc(var(--px, 0) * -11px), calc(var(--py, 0) * -8px), 12px) rotateY(-12deg) rotateZ(4deg); }
.hero-stage:hover .stage-phone--main { transform: translate3d(calc(var(--px, 0) * 16px), calc(var(--py, 0) * 11px - 7px), 100px) rotateY(-4deg) rotateX(0) rotateZ(1deg); }

.phone-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 780 / 1688;
  padding: 5px;
  border: 1px solid rgba(225, 232, 247, .23);
  border-radius: 12.4% / 5.8%;
  background: linear-gradient(145deg, #60697a, #171c27 11%, #05070b 50%, #3b4352);
  box-shadow: 0 35px 80px rgba(0, 0, 0, .48), inset 0 0 0 1px rgba(255, 255, 255, .08);
}
.phone-frame::after { content: ""; position: absolute; inset: 1px; border-radius: inherit; pointer-events: none; box-shadow: inset 7px 0 12px rgba(255,255,255,.05), inset -8px 0 14px rgba(0,0,0,.22); }
.phone-frame img { width: 100%; height: 100%; object-fit: cover; border-radius: 11.2% / 5.3%; }
.phone-speaker { position: absolute; z-index: 3; top: 1.45%; left: 50%; width: 29%; height: 2.7%; border-radius: 999px; background: #05070b; transform: translateX(-50%); box-shadow: inset 0 -1px rgba(255,255,255,.06); }

.orbit-node {
  position: absolute;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 14px 10px 10px;
  border: 1px solid rgba(171, 190, 226, .17);
  border-radius: 16px;
  background: rgba(15, 22, 38, .76);
  box-shadow: 0 18px 40px rgba(0,0,0,.28);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  animation: float 5s ease-in-out infinite;
}
.orbit-node svg { width: 34px; height: 34px; padding: 7px; border-radius: 11px; fill: none; stroke: currentColor; stroke-width: 1.6; color: var(--moon); background: rgba(143, 168, 216, .11); }
.orbit-node span { display: grid; gap: 2px; }
.orbit-node b { font-size: 13px; }
.orbit-node small { color: #7f8ca5; font-size: 10px; white-space: nowrap; }
.orbit-node--handover { left: -2%; bottom: 11%; }
.orbit-node--guard { right: 27%; bottom: 0; animation-delay: -2.6s; }
.orbit-node--guard svg { color: var(--green); background: rgba(76,195,138,.1); }
.dawn-sun { position: absolute; z-index: -1; right: -15%; bottom: -24%; width: 330px; height: 330px; border-radius: 50%; background: radial-gradient(circle at 46% 43%, #ffd2a4, #f09b56 33%, rgba(230, 112, 45, .1) 70%); opacity: .26; filter: blur(1px); box-shadow: 0 0 120px rgba(255, 150, 75, .25); }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.scroll-cue { position: absolute; bottom: 24px; left: 50%; z-index: 8; display: grid; justify-items: center; gap: 4px; color: #6f7b93; font-size: 10px; letter-spacing: .16em; transform: translateX(-50%); }
.scroll-cue svg { width: 22px; fill: none; stroke: currentColor; stroke-width: 1.4; animation: cue 1.7s ease-in-out infinite; }
@keyframes cue { 50% { transform: translateY(5px); color: var(--orange); } }

.tension {
  width: var(--shell);
  min-height: 620px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  align-items: center;
  gap: 80px;
  padding: 120px 0;
}
.tension h2, .journey h2, .proof h2, .buddy h2, .privacy h2, .closing h2 {
  margin: 0;
  font-size: clamp(42px, 4.5vw, 66px);
  line-height: 1.08;
  letter-spacing: -.052em;
  font-weight: 720;
}
.tension-copy p, .journey-heading p, .proof-copy p, .buddy-copy > p, .privacy-copy p, .closing-copy p {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}
.tension-visual { position: relative; min-height: 370px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; }
.time { position: relative; z-index: 2; font-size: clamp(30px, 3.2vw, 48px); font-variant-numeric: tabular-nums; letter-spacing: -.04em; }
.time--start { color: #eef1f8; }
.time--end { color: #ed8277; }
.delay-line { position: relative; height: 1px; background: linear-gradient(90deg, rgba(143,168,216,.1), rgba(236,117,111,.6)); }
.delay-line i { position: absolute; top: -4px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: #f0a07d; box-shadow: 0 0 20px #ed8277; animation: delay 4s ease-in-out infinite; }
@keyframes delay { 0% { left: 0; } 80%, 100% { left: calc(100% - 9px); } }
.scroll-stack { position: absolute; inset: 0; pointer-events: none; }
.scroll-stack span { position: absolute; padding: 12px 16px; border: 1px solid rgba(164,178,208,.13); border-radius: 14px; color: #7f899f; background: rgba(16,24,41,.6); font-size: 13px; animation: drift 6s ease-in-out infinite; }
.scroll-stack span:nth-child(1) { top: 15%; left: 8%; }
.scroll-stack span:nth-child(2) { top: 23%; right: 12%; animation-delay: -1.5s; }
.scroll-stack span:nth-child(3) { bottom: 17%; left: 24%; animation-delay: -3s; }
.scroll-stack span:nth-child(4) { bottom: 6%; right: 20%; animation-delay: -4.5s; }
@keyframes drift { 50% { transform: translateY(-12px) rotate(1deg); opacity: .55; } }

.journey { position: relative; padding: 120px 0 160px; background: #eef1f5; color: #141923; }
.journey::before { content: ""; position: absolute; top: -90px; left: -5%; width: 110%; height: 160px; border-radius: 50%; background: #eef1f5; }
.journey-heading { position: relative; z-index: 2; width: var(--shell); margin: 0 auto 80px; display: flex; align-items: end; justify-content: space-between; gap: 48px; }
.journey-heading p { max-width: 420px; color: #5d6677; text-align: right; }
.journey-shell { position: relative; width: var(--shell); min-height: 900px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.journey-visual { position: sticky; top: 120px; align-self: start; height: 680px; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius-l); background: radial-gradient(circle at 50% 42%, #334264, #162036 45%, #0d1424 72%); box-shadow: 0 36px 90px rgba(28,39,58,.18); }
.journey-phone { position: relative; z-index: 2; width: 270px; transition: transform .6s var(--ease), opacity .3s ease; }
.journey-phone.is-changing { opacity: .1; transform: translateY(18px) scale(.97); }
.journey-aura { position: absolute; width: 440px; height: 440px; border: 1px solid rgba(159,178,220,.18); border-radius: 50%; box-shadow: 0 0 0 48px rgba(159,178,220,.035), 0 0 0 108px rgba(159,178,220,.018); animation: breathe 5s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.05); opacity: .72; } }
.journey-status { position: absolute; z-index: 4; right: 22px; bottom: 22px; display: grid; gap: 4px; padding: 14px 16px; border: 1px solid rgba(255,255,255,.12); border-radius: 16px; color: #fff; background: rgba(7,11,21,.62); -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px); }
.journey-status span { color: #96a5c3; font-size: 12px; font-variant-numeric: tabular-nums; }
.journey-status b { font-size: 13px; }
.journey-steps { padding: 70px 0 120px; }
.journey-step { position: relative; min-height: 250px; padding: 36px 36px 36px 42px; border-left: 2px solid #d4d9e1; color: #687181; opacity: 1; transition: border-color .35s ease, transform .45s var(--ease); }
.journey-step::before { content: ""; position: absolute; top: 42px; left: -7px; width: 12px; height: 12px; border: 2px solid #eef1f5; border-radius: 50%; background: #c9ced7; transition: background .3s ease, box-shadow .3s ease; }
.journey-step span { color: #7b8494; font-size: 13px; font-weight: 650; letter-spacing: .12em; }
.journey-step h3 { margin: 18px 0 14px; color: #1c2230; font-size: clamp(25px, 2.3vw, 34px); line-height: 1.25; letter-spacing: -.035em; }
.journey-step p { max-width: 500px; margin: 0; font-size: 16px; line-height: 1.85; }
.journey-step.is-active { border-color: var(--orange); opacity: 1; transform: translateX(10px); }
.journey-step.is-active::before { background: var(--orange); box-shadow: 0 0 0 7px rgba(255,158,79,.14); }

.proof { padding: 150px 0 170px; background: #101728; }
.proof-copy { width: var(--shell); margin: 0 auto 70px; display: grid; grid-template-columns: 1fr .8fr; align-items: end; gap: 80px; }
.proof-copy p { margin: 0; }
.proof-gallery { width: var(--shell); margin: 0 auto; display: grid; grid-template-columns: 1.08fr .92fr; gap: 28px; }
.proof-shot { position: relative; min-height: 690px; margin: 0; padding: 54px 54px 40px; overflow: hidden; border: 1px solid rgba(162,179,212,.11); border-radius: var(--radius-l); background: linear-gradient(160deg, #182239, #0c1220); }
.proof-shot::before { content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%; background: rgba(126,153,211,.12); filter: blur(80px); }
.proof-shot--calendar .phone-frame { position: relative; z-index: 2; width: 255px; margin: 0 auto; transform: rotate(-4deg); transition: transform .6s var(--ease); }
.proof-shot--calendar:hover .phone-frame { transform: rotate(-1deg) translateY(-10px); }
.share-card-frame { position: relative; z-index: 2; margin: 50px auto 0; width: min(370px, 95%); overflow: hidden; border-radius: 30px; box-shadow: var(--shadow); transform: rotate(4deg); transition: transform .6s var(--ease); }
.proof-shot--card:hover .share-card-frame { transform: rotate(1deg) translateY(-10px); }
.proof-shot figcaption { position: absolute; z-index: 3; right: 36px; bottom: 34px; left: 36px; display: grid; gap: 9px; padding-top: 26px; background: linear-gradient(180deg, transparent, rgba(9,14,25,.92) 28%); }
.proof-shot figcaption strong { font-size: 19px; }
.proof-shot figcaption span { color: #9fa9bd; font-size: 14px; line-height: 1.7; }

.buddy { position: relative; min-height: 820px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 100px; padding: 140px max(24px, calc((100vw - 1040px) / 2)); background: #f0f2f5; color: #151a24; overflow: hidden; }
.buddy-copy { position: relative; z-index: 4; }
.buddy-copy > p { color: #606978; }
.buddy-copy ul { display: grid; gap: 14px; margin: 30px 0 0; padding: 0; list-style: none; color: #4b5463; font-size: 15px; }
.buddy-copy li { display: flex; align-items: center; gap: 10px; }
.buddy-copy li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(76,195,138,.12); }
.buddy-phone { position: relative; z-index: 3; width: 285px; justify-self: center; transform: rotate(3deg); }
.buddy-orbit { position: absolute; right: 7%; width: 650px; height: 650px; border: 1px solid rgba(63,78,108,.11); border-radius: 50%; }
.buddy-orbit::before, .buddy-orbit::after { content: ""; position: absolute; border: 1px solid rgba(63,78,108,.07); border-radius: 50%; }
.buddy-orbit::before { inset: 70px; }
.buddy-orbit::after { inset: 145px; }
.buddy-orbit i { position: absolute; width: 54px; height: 54px; border: 6px solid #fff; border-radius: 50%; background: #9baac6; box-shadow: 0 12px 35px rgba(42,54,77,.18); }
.buddy-orbit i:nth-child(1) { top: 8%; left: 20%; }
.buddy-orbit i:nth-child(2) { top: 52%; right: -2%; background: #f0a065; }
.buddy-orbit i:nth-child(3) { bottom: 4%; left: 20%; width: 38px; height: 38px; background: #6cc49a; }

.privacy { width: var(--shell); min-height: 700px; margin: 0 auto; display: grid; grid-template-columns: .55fr 1.1fr .85fr; align-items: center; gap: 60px; padding: 130px 0; }
.privacy-mark { color: var(--moon); opacity: .5; }
.privacy-mark svg { width: 150px; fill: rgba(143,168,216,.06); stroke: currentColor; stroke-width: 1.5; }
.privacy-copy p { max-width: 530px; }
.privacy-list { display: grid; }
.privacy-list p { margin: 0; padding: 18px 0; border-bottom: 1px solid var(--line); color: #aab3c5; font-size: 15px; }
.privacy-list span { display: inline-block; min-width: 56px; color: var(--orange); font-weight: 700; }

.closing { position: relative; min-height: 690px; display: grid; place-items: center; padding: 130px 24px; text-align: center; isolation: isolate; background: radial-gradient(circle at 50% 100%, rgba(255,154,76,.22), transparent 35%), linear-gradient(180deg, #080d19, #0f1727); }
.closing::before { content: ""; position: absolute; z-index: -1; bottom: -310px; width: 780px; height: 560px; border-radius: 50%; background: linear-gradient(180deg, #f3a166, #ed7754); opacity: .36; filter: blur(6px); box-shadow: 0 0 120px rgba(240,132,79,.26); }
.closing-moon { position: absolute; top: 60px; width: 92px; height: 92px; border-radius: 27px; box-shadow: 0 20px 60px rgba(91,116,170,.26); transform: rotate(-7deg); }
.closing-copy { position: relative; z-index: 2; }
.closing-copy p { max-width: 560px; margin-right: auto; margin-left: auto; }
.closing-copy .primary-button { margin-top: 34px; }

.site-footer { width: var(--shell); margin: 0 auto; padding: 48px 0 36px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 34px 50px; border-top: 1px solid var(--line); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { border-radius: 11px; }
.footer-brand div { display: grid; gap: 4px; }
.footer-brand strong { font-size: 16px; }
.footer-brand span { color: #737f97; font-size: 12px; }
.footer-links { display: flex; gap: 28px; color: #99a4b8; font-size: 13px; }
.footer-links a:hover, .footer-legal a:hover { color: #fff; }
.footer-legal { grid-column: 1 / -1; display: flex; align-items: center; flex-wrap: wrap; gap: 7px 24px; padding-top: 26px; border-top: 1px solid rgba(158,177,216,.09); color: #68748b; font-size: 12px; }
.footer-legal a { min-height: 44px; display: inline-flex; align-items: center; }
.security-record { gap: 7px; }
.security-record img { width: 18px; height: 20px; object-fit: contain; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1100px) {
  :root { --shell: min(100% - 40px, 960px); }
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .header-cta { margin-right: 50px; }
  .menu-button { position: absolute; right: 14px; display: grid; place-content: center; gap: 6px; width: 42px; height: 42px; border: 0; border-radius: 13px; color: #fff; background: rgba(255,255,255,.06); cursor: pointer; }
  .menu-button span:not(.sr-only) { width: 18px; height: 1px; background: currentColor; transition: transform .25s ease; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-nav { position: absolute; top: 76px; right: 0; left: 0; display: grid; gap: 4px; padding: 12px; border: 1px solid var(--line); border-radius: 20px; background: rgba(10,15,29,.96); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: all .25s ease; }
  .mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .mobile-nav a { padding: 13px 14px; border-radius: 12px; color: #c7cfdf; }
  .mobile-nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
  .hero { grid-template-columns: .8fr 1.2fr; }
  .hero-stage { width: 54vw; }
  .stage-phone--main { width: 21vw; left: 28%; }
  .stage-phone--result { width: 15.5vw; }
  .journey-shell { gap: 55px; }
  .proof-shot { padding-inline: 30px; }
  .privacy { grid-template-columns: .35fr 1fr .8fr; gap: 35px; }
}

@media (max-width: 820px) {
  :root { --shell: calc(100vw - 36px); }
  .site-header { min-height: 62px; }
  .brand img { width: 36px; height: 36px; }
  .brand span { font-size: 16px; }
  .header-cta { display: none; }
  .hero { height: auto; min-height: 980px; grid-template-columns: 1fr; align-content: start; gap: 36px; padding: 128px 18px 90px; }
  .hero-copy { text-align: center; }
  .hero h1 { max-width: none; font-size: clamp(54px, 15vw, 72px); }
  .hero-copy > p:not(.platform-note) { margin: 24px auto 0; font-size: 16px; }
  .hero-copy > p br { display: none; }
  .hero-actions { justify-content: center; margin-top: 30px; }
  .platform-note { justify-content: center; }
  .hero-stage { width: min(590px, 100%); height: 510px; min-height: 510px; justify-self: center; }
  .stage-phone--main { width: 210px; left: calc(50% - 120px); }
  .stage-phone--result { width: 145px; right: 1%; top: 19%; }
  .orbit-node--handover { left: 1%; bottom: 8%; }
  .orbit-node--guard { right: 4%; bottom: 0; }
  .dawn-sun { right: -30%; }
  .scroll-cue { display: none; }
  .tension { min-height: auto; grid-template-columns: 1fr; gap: 48px; padding: 100px 0 120px; }
  .tension h2, .journey h2, .proof h2, .buddy h2, .privacy h2, .closing h2 { font-size: clamp(40px, 11vw, 54px); }
  .tension-copy p, .journey-heading p, .proof-copy p, .buddy-copy > p, .privacy-copy p, .closing-copy p { font-size: 16px; }
  .tension-visual { min-height: 300px; }
  .journey { padding: 100px 0 120px; }
  .journey::before { top: -50px; height: 90px; }
  .journey-heading { margin-bottom: 50px; display: block; }
  .journey-heading p { margin-top: 20px; text-align: left; }
  .journey-shell { min-height: auto; grid-template-columns: 1fr; gap: 45px; }
  .journey-visual { position: relative; top: auto; height: 620px; }
  .journey-phone { width: 240px; }
  .journey-steps { padding: 0; }
  .journey-step { min-height: 220px; padding: 32px 20px 32px 34px; }
  .journey-step.is-active { transform: translateX(4px); }
  .proof { padding: 110px 0 120px; }
  .proof-copy { display: block; margin-bottom: 45px; }
  .proof-copy p { margin-top: 20px; }
  .proof-gallery { grid-template-columns: 1fr; }
  .proof-shot { min-height: 650px; }
  .buddy { min-height: auto; grid-template-columns: 1fr; gap: 65px; padding: 110px 24px 120px; }
  .buddy-phone { grid-row: 1; width: 250px; }
  .buddy-orbit { top: 40px; right: 50%; width: 520px; height: 520px; transform: translateX(50%); }
  .privacy { min-height: auto; grid-template-columns: 1fr; gap: 38px; padding: 110px 0; }
  .privacy-mark svg { width: 90px; }
  .closing { min-height: 650px; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (max-width: 520px) {
  :root { --shell: calc(100vw - 28px); }
  .site-header { top: 9px; width: calc(100vw - 18px); padding-left: 12px; border-radius: 20px; }
  .hero { min-height: 900px; padding-inline: 14px; }
  .hero-copy > p:not(.platform-note) { max-width: 345px; line-height: 1.75; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .primary-button { width: 100%; max-width: 330px; }
  .hero-stage { height: 430px; min-height: 430px; }
  .stage-phone--main { width: 170px; left: calc(50% - 106px); }
  .stage-phone--result { width: 118px; top: 17%; right: 0; }
  .orbit { inset: -2% -9% 0 -9%; width: 118%; }
  .orbit-node { gap: 8px; padding: 8px 10px 8px 8px; border-radius: 13px; }
  .orbit-node svg { width: 28px; height: 28px; }
  .orbit-node--handover { left: 0; bottom: 10%; }
  .orbit-node--guard { right: 0; bottom: -1%; }
  .dawn-sun { width: 250px; height: 250px; }
  .tension { padding: 80px 0 100px; }
  .tension-visual { min-height: 260px; grid-template-columns: auto 1fr auto; gap: 10px; }
  .time { font-size: 25px; }
  .scroll-stack span { padding: 9px 11px; font-size: 11px; }
  .journey { padding-top: 80px; }
  .journey-visual { height: 530px; border-radius: 28px; }
  .journey-phone { width: 205px; }
  .journey-aura { width: 330px; height: 330px; }
  .journey-status { right: 12px; bottom: 12px; padding: 11px 12px; }
  .journey-step { padding-right: 6px; }
  .journey-step h3 { font-size: 26px; }
  .proof-shot { min-height: 590px; padding: 35px 18px 30px; border-radius: 28px; }
  .proof-shot--calendar .phone-frame { width: 220px; }
  .share-card-frame { width: 300px; }
  .proof-shot figcaption { right: 20px; bottom: 24px; left: 20px; }
  .buddy { padding-inline: 18px; }
  .buddy-phone { width: 220px; }
  .privacy-list p { font-size: 14px; }
  .closing-moon { top: 50px; }
  .footer-legal { display: grid; gap: 0; }
}

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