:root {
  --paper: #f7f4ed;
  --paper-deep: #ede8dc;
  --surface: #fffdf8;
  --ink: #17203e;
  --ink-soft: #4f5568;
  --ink-faint: #777a86;
  --indigo: #1d2d5a;
  --indigo-bright: #334a82;
  --ochre: #cf9a3c;
  --forest: #345747;
  --clay: #ad725c;
  --line: rgba(29, 45, 90, 0.14);
  --shadow: 0 24px 70px rgba(27, 30, 44, 0.12);
  --radius-lg: 32px;
  --radius-md: 22px;
  --shell: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: white;
  background: var(--indigo);
  border-radius: 10px;
  transform: translateY(-150%);
}

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

:focus-visible {
  outline: 3px solid var(--ochre);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgba(247, 244, 237, 0.88);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 6px 28px rgba(27, 30, 44, 0.05); }

.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 730; letter-spacing: -0.02em; }
.brand img { border-radius: 11px; }
.site-nav { display: flex; align-items: center; gap: clamp(20px, 4vw, 42px); margin-left: auto; }
.site-nav a { color: var(--ink-soft); font-size: 15px; text-decoration: none; }
.site-nav a:hover { color: var(--ink); }

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--indigo);
  border-radius: 14px;
  color: #fff;
  background: var(--indigo);
  box-shadow: 0 10px 30px rgba(29, 45, 90, 0.18);
  font-size: 16px;
  font-weight: 650;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover { background: #263a70; box-shadow: 0 14px 34px rgba(29, 45, 90, 0.24); transform: translateY(-2px); }
.button-small { min-height: 42px; padding: 9px 16px; border-radius: 12px; font-size: 14px; box-shadow: none; }
.text-link { display: inline-flex; min-height: 48px; align-items: center; gap: 9px; color: var(--ink); font-size: 15px; font-weight: 620; text-decoration: none; }
.text-link:hover { color: var(--indigo-bright); }

.hero {
  min-height: min(820px, calc(100svh - 76px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 0.83fr);
  align-items: center;
  gap: clamp(50px, 8vw, 112px);
  padding-block: 72px 96px;
}

.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 22px; color: var(--indigo-bright); font-size: 12px; font-weight: 760; letter-spacing: 0.15em; text-transform: uppercase; }
.signal { display: inline-block; width: 7px; height: 7px; margin: 0 8px 1px 0; border-radius: 50%; background: var(--ochre); box-shadow: 0 0 0 5px rgba(207, 154, 60, 0.12); }

h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -0.045em; }
h1 { max-width: 720px; margin-bottom: 28px; font-size: clamp(52px, 6.4vw, 88px); font-weight: 760; }
h1 span { color: var(--indigo-bright); }
.hero-lede { max-width: 650px; margin: 0 0 32px; color: var(--ink-soft); font-size: clamp(18px, 2vw, 22px); line-height: 1.7; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px 28px; }
.cta-note { max-width: 590px; margin: 16px 0 0; color: var(--ink-faint); font-size: 13px; }

.hero-stage { position: relative; min-height: 650px; display: grid; place-items: center; isolation: isolate; }
.hero-stage::before { content: ""; position: absolute; z-index: -3; width: 490px; height: 490px; border: 1px solid var(--line); border-radius: 50%; }
.hero-stage::after { content: ""; position: absolute; z-index: -3; width: 390px; height: 390px; border: 1px solid var(--line); border-radius: 50%; }
.thread { position: absolute; z-index: -2; width: 160px; height: 300px; border: 2px solid transparent; border-right-color: var(--ochre); border-radius: 50%; transform: rotate(30deg); opacity: 0.75; }
.thread-one { top: 40px; left: 2%; }
.thread-two { right: 2%; bottom: 20px; border-right-color: var(--indigo-bright); transform: rotate(210deg); }

.phone-shell { width: min(360px, 88vw); padding: 9px; border: 1px solid rgba(29,45,90,.26); border-radius: 50px; background: #17191f; box-shadow: 0 38px 90px rgba(23, 32, 62, 0.23); transform: rotate(1.5deg); }
.phone-screen { min-height: 606px; padding: 16px 17px 22px; overflow: hidden; border-radius: 42px; background: #f2f0e9; }
.status-bar { height: 28px; display: flex; align-items: flex-start; justify-content: space-between; padding-inline: 6px; color: #1b2132; font-size: 10px; font-weight: 720; }
.app-heading { display: flex; align-items: center; justify-content: space-between; margin: 14px 3px 22px; font-size: 23px; font-weight: 720; letter-spacing: -0.04em; }
.avatar-dot { width: 29px; height: 29px; border: 1px solid rgba(29,45,90,.15); border-radius: 50%; background: var(--surface); }
.resume-card { padding: 19px; border: 1px solid rgba(29,45,90,.09); border-radius: 24px; background: var(--surface); box-shadow: 0 16px 45px rgba(32,38,55,.1); }
.resume-meta { display: flex; justify-content: space-between; margin-bottom: 15px; color: var(--forest); font-size: 10px; font-weight: 730; letter-spacing: .05em; }
.resume-meta span:last-child { color: var(--ink-faint); font-weight: 550; }
.book-row { display: grid; grid-template-columns: 76px 1fr; align-items: center; gap: 14px; }
.book-row img { width: 76px; border-radius: 7px; box-shadow: 0 7px 16px rgba(27,30,44,.18); }
.book-row h2 { margin: 0 0 3px; font-size: 20px; letter-spacing: -.03em; }
.book-row p { margin: 0 0 9px; color: var(--ink-faint); font-size: 11px; }
.location { padding: 4px 8px; border-radius: 7px; color: var(--indigo-bright); background: #eef0f5; font-size: 10px; font-weight: 650; }
.resume-card blockquote { margin: 19px 0 12px; padding-left: 12px; border-left: 2px solid var(--ochre); color: #333746; font-family: ui-serif, "Songti SC", STSong, serif; font-size: 13px; line-height: 1.65; }
.question { display: grid; grid-template-columns: 22px 1fr; gap: 8px; align-items: start; padding: 10px; border-radius: 11px; background: #f4f1e8; }
.question span { display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; color: white; background: var(--ochre); font-size: 11px; font-weight: 700; }
.question p { margin: 0; color: var(--ink-soft); font-size: 11px; line-height: 1.55; }
.mock-button { width: 100%; min-height: 43px; display: grid; margin-top: 16px; place-items: center; border-radius: 12px; color: white; background: var(--indigo); font-size: 13px; font-weight: 650; }
.source-line { margin: 10px 0 0; color: var(--forest); font-size: 9px; text-align: center; }
.time-badge { position: absolute; right: -18px; bottom: 70px; display: flex; align-items: center; gap: 8px; padding: 11px 15px; border: 1px solid rgba(207,154,60,.35); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow); transform: rotate(-4deg); }
.time-badge strong { color: var(--ochre); font-size: 29px; line-height: 1; }
.time-badge span { color: var(--ink-soft); font-size: 10px; line-height: 1.35; }

.quiet-proof { border-block: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-block: 27px; }
.proof-grid p { margin: 0; padding: 0 clamp(18px, 4vw, 52px); border-right: 1px solid var(--line); }
.proof-grid p:first-child { padding-left: 0; }
.proof-grid p:last-child { border: 0; }
.proof-grid strong, .proof-grid span { display: block; }
.proof-grid strong { margin-bottom: 2px; font-size: 14px; }
.proof-grid span { color: var(--ink-faint); font-size: 12px; }

.section { padding-block: clamp(92px, 12vw, 160px); }
.section-heading { max-width: 850px; margin-bottom: 58px; }
.section-heading h2, .source-copy h2, .evidence-copy h2, .privacy-copy h2, .closing-copy h2 { margin-bottom: 24px; font-size: clamp(40px, 5vw, 64px); font-weight: 740; }
.section-heading-split { max-width: none; display: grid; grid-template-columns: 1fr minmax(280px, .55fr); align-items: end; gap: 70px; }
.section-heading-split > p { margin: 0 0 8px; color: var(--ink-soft); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 0; padding: 0; list-style: none; }
.step { min-height: 375px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,253,248,.55); }
.step-number { display: block; color: var(--ink-faint); font-size: 11px; letter-spacing: .12em; }
.step-mark { position: relative; height: 140px; margin-block: 28px 30px; }
.step-mark-location::before, .step-mark-location::after { content: ""; position: absolute; left: 50%; border-radius: 50%; transform: translateX(-50%); }
.step-mark-location::before { top: 9px; width: 92px; height: 92px; border: 1px solid var(--line); }
.step-mark-location::after { top: 41px; width: 28px; height: 28px; background: var(--ochre); box-shadow: 0 0 0 14px rgba(207,154,60,.12); }
.step-mark-location span { position: absolute; top: 71px; left: calc(50% - 1px); width: 2px; height: 55px; background: var(--ochre); }
.step-mark-memory span { position: absolute; top: 22px; width: 94px; height: 102px; border-radius: 13px; }
.step-mark-memory span:first-child { left: calc(50% - 76px); background: var(--indigo); transform: rotate(-7deg); }
.step-mark-memory span:last-child { right: calc(50% - 76px); border: 1px solid var(--ochre); background: var(--surface); transform: rotate(7deg); }
.step-mark-thread::before { content: ""; position: absolute; inset: 12px 50px; border: 2px solid var(--indigo); border-top-color: transparent; border-bottom-color: transparent; border-radius: 50%; transform: rotate(52deg); }
.step-mark-thread::after { content: ""; position: absolute; top: 60px; left: 50%; width: 22px; height: 22px; border-radius: 50%; background: var(--forest); box-shadow: 0 0 0 11px rgba(52,87,71,.12); transform: translateX(-50%); }
.step h3 { margin-bottom: 12px; font-size: 23px; }
.step p { margin: 0; color: var(--ink-soft); font-size: 15px; }

.source-section { color: var(--paper); background: var(--indigo); }
.source-layout { display: grid; grid-template-columns: minmax(330px, .9fr) 1fr; align-items: center; gap: clamp(60px, 10vw, 130px); }
.source-visual { position: relative; max-width: 500px; }
.source-photo { width: 100%; border-radius: var(--radius-lg); filter: saturate(.82); }
.capture-card { position: absolute; right: -58px; bottom: 38px; width: min(330px, 76%); padding: 19px; border: 1px solid rgba(255,255,255,.2); border-radius: 18px; color: var(--ink); background: rgba(255,253,248,.95); box-shadow: 0 22px 55px rgba(0,0,0,.24); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.card-kicker { margin: 0 0 10px; color: var(--indigo-bright); font-size: 11px; font-weight: 720; letter-spacing: .04em; }
.capture-card > p:nth-child(2) { margin: 0 0 13px; font-family: ui-serif, "Songti SC", STSong, serif; font-size: 14px; line-height: 1.6; }
.capture-card > span { color: var(--forest); font-size: 10px; }
.capture-card i { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; background: var(--forest); }
.source-copy { max-width: 580px; }
.source-copy .eyebrow, .privacy-copy .eyebrow { color: #dfb867; }
.source-copy > p:not(.eyebrow), .privacy-copy > p:not(.eyebrow) { color: rgba(247,244,237,.72); font-size: 18px; }
.check-list { display: grid; gap: 15px; margin: 30px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.check-list span { display: grid; width: 25px; height: 25px; flex: 0 0 25px; place-items: center; border-radius: 50%; color: var(--indigo); background: #d9bf87; font-size: 12px; font-weight: 800; }

.echo-stage { position: relative; min-height: 470px; display: grid; grid-template-columns: 1fr 100px 1fr; align-items: center; }
.echo-date { position: absolute; top: 0; left: 50%; width: min(500px, 80%); display: flex; align-items: center; gap: 14px; color: var(--ink-faint); font-size: 11px; transform: translateX(-50%); }
.echo-date i { height: 1px; flex: 1; background: var(--line); }
.memory-card { padding: clamp(24px, 4vw, 40px); border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 14px 46px rgba(27,30,44,.07); }
.memory-card blockquote { margin: 0; color: var(--ink); font-family: ui-serif, "Songti SC", STSong, serif; font-size: clamp(20px, 2.5vw, 29px); line-height: 1.62; }
.memory-card-old { transform: rotate(-1.5deg); }
.memory-card-new { transform: rotate(1.5deg); }
.memory-card-new { border-top: 3px solid var(--ochre); }
.memory-source { margin: 20px 0 0; color: var(--forest); font-size: 12px; }
.echo-line { position: relative; height: 210px; }
.echo-line::before { content: ""; position: absolute; top: 8px; bottom: 8px; left: 50%; width: 1px; background: var(--ochre); }
.echo-line::after { content: ""; position: absolute; top: calc(50% - 7px); left: calc(50% - 7px); width: 14px; height: 14px; border-radius: 50%; background: var(--ochre); box-shadow: 0 0 0 10px rgba(207,154,60,.14); }
.ink-puff { position: absolute; right: -5px; bottom: -24px; width: 94px; opacity: .88; transform: rotate(-4deg); }

.evidence-section { background: var(--paper-deep); }
.evidence-layout { display: grid; grid-template-columns: minmax(0,.78fr) minmax(380px,1fr); align-items: center; gap: clamp(60px, 10vw, 130px); }
.evidence-copy > p:not(.eyebrow) { color: var(--ink-soft); font-size: 18px; }
.boundary-note { display: flex; align-items: center; gap: 14px; margin-top: 27px; padding: 17px; border: 1px solid rgba(52,87,71,.2); border-radius: 15px; background: rgba(255,253,248,.48); }
.boundary-note > span { display: grid; width: 38px; height: 38px; flex: 0 0 38px; place-items: center; border-radius: 50%; color: var(--surface); background: var(--forest); }
.boundary-note p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.5; }
.boundary-note strong { color: var(--ink); }
.answer-card { padding: clamp(24px, 4vw, 39px); border: 1px solid rgba(29,45,90,.12); border-radius: 28px; background: var(--surface); box-shadow: var(--shadow); }
.answer-card header { display: flex; align-items: center; gap: 14px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.ai-mark { display: grid; width: 42px; height: 42px; flex: 0 0 42px; place-items: center; border-radius: 13px; color: white; background: var(--indigo); font-family: ui-serif, Georgia, serif; font-size: 19px; }
.answer-card header strong, .answer-card header small { display: block; }
.answer-card header strong { font-size: 16px; }
.answer-card header small { margin-top: 2px; color: var(--forest); font-size: 10px; }
.answer-block { display: grid; grid-template-columns: 64px 1fr; gap: 18px; padding-block: 19px; border-bottom: 1px solid var(--line); }
.answer-block > span { color: var(--indigo-bright); font-size: 11px; font-weight: 700; }
.answer-block p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.answer-block sup { display: inline-grid; width: 18px; height: 18px; place-items: center; border-radius: 50%; color: white; background: var(--indigo-bright); font-size: 9px; }
.answer-block.uncertain { border-bottom: 0; }
.answer-block.uncertain > span { color: var(--ochre); }
.answer-card footer { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.answer-card footer span { padding: 5px 8px; border-radius: 7px; color: var(--forest); background: rgba(52,87,71,.08); font-size: 9px; font-weight: 650; }

.tabs-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.tab-card { position: relative; min-height: 300px; padding: 25px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,253,248,.55); }
.tab-card.active { color: white; background: var(--indigo); }
.tab-icon { display: grid; width: 46px; height: 46px; margin-bottom: 64px; place-items: center; border: 1px solid var(--line); border-radius: 15px; color: var(--indigo-bright); background: var(--surface); font-size: 20px; }
.tab-card h3 { margin-bottom: 11px; font-size: 24px; }
.tab-card p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.tab-card.active p { color: rgba(255,255,255,.66); }
.tab-card em { position: absolute; right: 17px; bottom: 10px; color: rgba(29,45,90,.08); font-size: 64px; font-style: normal; font-weight: 780; line-height: 1; }
.tab-card.active em { color: rgba(255,255,255,.08); }

.privacy-section { color: var(--paper); background: #17203e; overflow: hidden; }
.privacy-layout { min-height: 570px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.privacy-copy { position: relative; z-index: 2; }
.privacy-copy ul { display: grid; gap: 14px; margin: 30px 0 0; padding: 0; list-style: none; }
.privacy-copy li { display: flex; align-items: center; gap: 12px; color: rgba(247,244,237,.86); font-size: 14px; }
.privacy-copy li span { width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: var(--ochre); }
.privacy-mark { position: relative; width: min(500px, 100%); aspect-ratio: 1; margin-inline: auto; }
.orbit { position: absolute; inset: 50%; border: 1px solid rgba(247,244,237,.16); border-radius: 50%; transform: translate(-50%,-50%); }
.orbit-one { width: 92%; height: 92%; }
.orbit-two { width: 66%; height: 66%; }
.orbit-three { width: 40%; height: 40%; border-color: rgba(207,154,60,.42); }
.privacy-core { position: absolute; inset: 50%; width: 138px; height: 138px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.14); border-radius: 34px; background: var(--paper); box-shadow: 0 24px 70px rgba(0,0,0,.28); transform: translate(-50%,-50%) rotate(2deg); }
.privacy-core img { width: 112px; border-radius: 20px; }
.privacy-label { position: absolute; padding: 8px 12px; border: 1px solid rgba(247,244,237,.16); border-radius: 11px; color: rgba(247,244,237,.74); background: rgba(23,32,62,.72); font-size: 11px; }
.label-one { top: 13%; left: 10%; }
.label-two { top: 34%; right: 0; }
.label-three { right: 15%; bottom: 10%; }

.closing { display: grid; grid-template-columns: minmax(300px,.88fr) 1fr; align-items: center; gap: clamp(55px, 10vw, 130px); }
.closing > img { width: min(500px, 100%); border-radius: var(--radius-lg); }
.closing-copy { max-width: 580px; }
.closing-copy > p:not(.eyebrow):not(.cta-note) { margin-bottom: 28px; color: var(--ink-soft); font-size: 18px; }
.closing-copy .cta-note { margin-top: 14px; }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 150px; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 26px; }
.footer-inner > p { margin: 0; color: var(--ink-faint); font-size: 12px; }
.footer-inner > p:last-child { text-align: right; }
.footer-inner a:not(.brand) { text-underline-offset: 3px; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms ease, transform 700ms cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .steps .reveal:nth-child(2), .js .tabs-grid .reveal:nth-child(2) { transition-delay: 80ms; }
.js .steps .reveal:nth-child(3), .js .tabs-grid .reveal:nth-child(3) { transition-delay: 160ms; }
.js .tabs-grid .reveal:nth-child(4) { transition-delay: 240ms; }

@media (max-width: 960px) {
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 30px; padding-top: 72px; }
  .hero-copy { max-width: 760px; }
  .hero-stage { min-height: 620px; }
  .source-layout, .evidence-layout, .privacy-layout, .closing { grid-template-columns: 1fr; }
  .source-layout { gap: 85px; }
  .source-visual { margin-inline: auto; }
  .source-copy, .evidence-copy, .privacy-copy, .closing-copy { max-width: 720px; }
  .evidence-layout { gap: 50px; }
  .answer-card { max-width: 720px; }
  .privacy-layout { gap: 20px; padding-block: 20px; }
  .privacy-mark { max-width: 460px; }
  .closing > img { order: 2; }
  .closing-copy { order: 1; }
  .tabs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .shell { width: min(calc(100% - 32px), var(--shell)); }
  .site-nav { display: none; }
  .hero { padding-block: 54px 70px; }
  h1 { font-size: clamp(47px, 15vw, 67px); }
  .hero-lede { font-size: 18px; }
  .hero-stage { min-height: 570px; }
  .phone-shell { width: min(340px, 91vw); }
  .phone-screen { min-height: 570px; }
  .time-badge { right: -4px; bottom: 32px; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-grid p { padding: 17px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof-grid p:first-child { padding-top: 0; }
  .proof-grid p:last-child { padding-bottom: 0; }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: auto; }
  .section-heading-split { grid-template-columns: 1fr; gap: 18px; }
  .source-visual { width: calc(100% - 18px); margin-left: 0; }
  .capture-card { right: -18px; bottom: 25px; }
  .echo-stage { grid-template-columns: 1fr; gap: 70px; padding-top: 58px; }
  .echo-line { position: absolute; top: 47%; left: 50%; z-index: -1; height: 120px; }
  .memory-card-old, .memory-card-new { transform: none; }
  .ink-puff { right: 0; bottom: -75px; }
  .evidence-layout { grid-template-columns: minmax(0,1fr); }
  .answer-card { min-width: 0; }
  .answer-block { grid-template-columns: 1fr; gap: 7px; }
  .footer-inner { grid-template-columns: 1fr; padding-block: 35px; }
  .footer-inner > p:last-child { text-align: left; }
}

@media (max-width: 480px) {
  .header-inner { min-height: 68px; gap: 12px; }
  .brand img { width: 34px; height: 34px; }
  .button-small { min-height: 40px; padding-inline: 12px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button, .hero-actions .text-link { width: 100%; }
  .hero-actions .text-link { justify-content: center; }
  .hero-stage { min-height: 530px; margin-inline: -8px; }
  .hero-stage::before { width: 290px; height: 290px; }
  .hero-stage::after { width: 230px; height: 230px; }
  .thread { display: none; }
  .phone-shell { width: min(326px, 100%); border-radius: 43px; transform: none; }
  .phone-screen { min-height: 535px; padding-inline: 13px; border-radius: 35px; }
  .resume-card { padding: 16px; }
  .app-heading { font-size: 21px; }
  .book-row { grid-template-columns: 68px 1fr; }
  .book-row img { width: 68px; }
  .time-badge { display: none; }
  .tabs-grid { grid-template-columns: 1fr; }
  .tab-card { min-height: 245px; }
  .tab-icon { margin-bottom: 32px; }
  .privacy-mark { width: 100%; margin-left: 0; }
  .privacy-core { width: 112px; height: 112px; border-radius: 28px; }
  .privacy-core img { width: 90px; }
  .privacy-label { font-size: 10px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121728;
    --paper-deep: #1a2032;
    --surface: #202638;
    --ink: #f4f0e7;
    --ink-soft: #c6c5c5;
    --ink-faint: #9699a5;
    --indigo: #334a82;
    --indigo-bright: #9badd8;
    --line: rgba(238, 235, 225, 0.14);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  }
  .site-header { background: rgba(18,23,40,.86); }
  .phone-shell { border-color: rgba(255,255,255,.25); }
  .phone-screen { background: #181e2f; }
  .status-bar { color: #f4f0e7; }
  .resume-card, .capture-card { background: #242a3a; }
  .location, .question { background: #2b3143; }
  .resume-card blockquote { color: #ece8de; }
  .source-section { background: #18213d; }
  .source-section .capture-card { color: var(--ink); }
  .privacy-section { background: #0e1425; }
  .privacy-core { background: #f7f4ed; }
}

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