/* AVENBRIDGE V5 revision 16 (components below the revision 16 marker are new).
   One idea per screen: a large heading, one visual, one action. Sections alternate paper, wash and deep green.
   Revision 16: no scroll-reveal; everything is visible at once, with or without scripts. */

/* ---------- tokens and base ---------- */
*, :before, :after { box-sizing: border-box }
:root {
  color-scheme: light;
  --bg: #f6f5ef; --ink: #173a2c; --muted: #53645a; --line: #c7cec2; --wash: #e8ebdf;
  --accent: #22563d; --button-ink: #fff;
  --display: clamp(2.5rem, 4.6vw, 4.6rem); --title: clamp(2rem, 3.5vw, 3.5rem); --heading: clamp(1.7rem, 2.6vw, 2.7rem);
  --ease: cubic-bezier(.22, .68, .2, 1);
  --pad: clamp(3.5rem, 7vw, 6.5rem);
}
[data-theme=dark] {
  color-scheme: dark;
  --bg: #101d17; --ink: #efeedd; --muted: #b9c7b9; --line: #415548; --wash: #1d3024; --accent: #d3e1b5; --button-ink: #153423;
}
html { scroll-padding-top: 6rem; -webkit-text-size-adjust: 100% }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 1.0625rem/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "PingFang TC", "Hiragino Sans", "Microsoft YaHei", "Microsoft JhengHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased; overflow-wrap: break-word;
}
h1, h2, h3, p, figure, ul, ol, dl, dd, blockquote, fieldset { margin: 0; padding: 0 }
ul, ol { list-style: none }
a { color: inherit; text-decoration: none }
button, summary, input { font: inherit; color: inherit }
button, summary { cursor: pointer }
button { border: 1px solid var(--line); background: var(--bg); padding: .65rem .9rem; border-radius: 8px; min-height: 44px }
button:disabled { cursor: default }
img { display: block; width: 100%; height: auto }
svg { display: block; max-width: 100% }
h1, h2, h3 { font-weight: 540; line-height: 1.15; letter-spacing: -.035em; text-wrap: balance }
:lang(ja) { word-break: auto-phrase; line-break: strict }
h1 { font-size: var(--title) }
h2 { font-size: var(--heading) }
h3 { font-size: 1.35rem; line-height: 1.3; letter-spacing: -.02em }
p { color: var(--muted) }
main *, header *, footer * { min-width: 0 }
a[href^="mailto:"], .footer a, .mail-note { overflow-wrap: anywhere }
a:hover { text-decoration: underline; text-underline-offset: .25em }
button:not(:disabled):hover { background: var(--wash) }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px }
main:focus { outline: none }
.wrap { width: min(100% - clamp(36px, 7vw, 120px), 1280px); margin-inline: auto }
.eyebrow, .screen-label { font-size: .8125rem; font-weight: 560; letter-spacing: .04em }
.eyebrow { margin-bottom: 1.1rem; color: var(--muted) }
.lead { font-size: clamp(1.0625rem, 1.45vw, 1.3rem); line-height: 1.7 }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.8rem; margin-top: 2.2rem }
.button { display: inline-flex; align-items: center; justify-content: center; padding: .9rem 1.7rem; background: var(--accent); color: var(--button-ink); border-radius: 100px; font-size: 1rem; line-height: 1.5; min-height: 48px; max-width: 100%; transition: transform .3s var(--ease) }
.button:hover { text-decoration: none; transform: translateY(-2px) }
.text-link { display: inline-flex; border-bottom: 1px solid currentColor; padding-block: .5rem; font-size: 1rem; max-width: 100% }
.skip { position: fixed; z-index: 100; left: 1rem; top: 1rem; transform: translateY(-200%); padding: 1rem; background: var(--accent); color: var(--button-ink) }
.skip:focus { transform: none }
.ink { background: #15392a; color: #f1f0df; --bg: #15392a; --ink: #f1f0df; --muted: #c0cfbc; --line: #4b6a52; --accent: #d2e1b2; --wash: #264c35; --button-ink: #15392a; padding-block: var(--pad) }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; align-items: start }
.section-heading h2 { max-width: 16em }

/* ---------- header and footer ---------- */
.header { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line) }
.header-inner { display: flex; gap: 1.6rem; align-items: center; min-height: 72px; padding-block: .6rem; position: relative }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-size: .8125rem; letter-spacing: .13em; font-weight: 650; line-height: 1.4; flex-shrink: 0 }
.brand-mark { width: 19px; height: 21px; flex: none }
.desktop-nav { display: flex; flex: 1; justify-content: center; gap: 1.8rem; font-size: .9rem }
.desktop-nav > a, .desktop-nav > span { padding: .6rem 0; white-space: nowrap }
.desktop-nav [aria-current], .desktop-nav .in-section { border-bottom: 1px solid currentColor }
.preferences { margin-left: auto }
.preferences summary, .mobile-menu summary { font-size: .875rem; padding: .65rem .3rem; min-height: 44px; list-style: none }
.preferences summary::-webkit-details-marker, .mobile-menu summary::-webkit-details-marker { display: none }
.preferences-panel { position: absolute; right: 0; top: calc(100% + 1px); width: min(340px, 100%); padding: 1.5rem; background: var(--bg); border: 1px solid var(--line); box-shadow: 0 18px 45px #0002; max-height: 75vh; overflow-y: auto; border-radius: 0 0 12px 12px }
.preferences-panel p { font-size: .8125rem; margin-bottom: .6rem }
.preferences-panel ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .1rem .8rem }
.preferences-panel a, .preferences-panel li > span { font-size: .9375rem; display: block; padding: .5rem 0 }
.preferences-panel [aria-current] { font-weight: 650 }
.auto-lang { border-top: 1px solid var(--line); margin-top: .65rem }
.theme-options { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem }
.theme-options button, .motion-toggle { font-size: .8125rem }
button[aria-pressed=true] { background: var(--ink); color: var(--bg) }
.mobile-menu, .js-control { display: none }
.js .js-control { display: block }
.preferences .js-control { margin-top: 1.2rem }
.footer { padding-block: 3.5rem; border-top: 1px solid var(--line) }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; font-size: .875rem }
.footer p { margin-top: .6rem }
.footer .footer-slogan { color: var(--ink) }
.footer nav, .footer-locales { display: grid; gap: .65rem; align-content: start }
.footer nav { display: block; column-count: 2; column-gap: 1.5rem }
.footer nav > * { display: block; break-inside: avoid; margin-bottom: .65rem }
.footer [aria-current] { font-weight: 650 }

/* ---------- home hero and phone ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 3rem; align-items: center; min-height: calc(100svh - 72px); padding-block: 3.5rem }
.hero h1 { font-size: var(--display); line-height: 1.12; max-width: 9em }
.hero .lead { max-width: 30em; margin-top: 1.8rem }
.hero-art { position: relative; perspective: 1400px }
.walkthrough { position: relative }
.walk-art { position: relative; padding: 1rem 1.5rem 1rem 4rem; isolation: isolate; transform: translate3d(0, var(--shift, 0px), 0) rotate(var(--turn, 0deg)); transition: transform .2s linear }
.walk-art:before { content: ''; position: absolute; z-index: -2; inset: 3% 0 7% 8%; border-radius: 50% 50% 12% 12%; background: radial-gradient(ellipse at 50% 45%, #a8b49055, transparent 68%) }
.tap-card { position: absolute; left: 0; top: 6rem; width: 125px; height: 165px; padding: 2rem 1rem; background: linear-gradient(140deg, #36634a, #103b2c); color: #e4e4bf; box-shadow: 8px 16px 24px #0e29132b; border-radius: 7px; transform: rotate(-12deg); border-bottom: 7px solid #123d2c; z-index: -1; transition: transform .8s var(--ease) }
.tap-card svg { height: 85px; margin: auto }
.tap-card span { font-size: 7px; letter-spacing: .17em; display: block; text-align: center; margin-top: .7rem }
.tap-ring { position: absolute; right: -6px; top: 34%; width: 14px; height: 14px; border: 1px solid #e4e4bf; border-radius: 50%; animation: ring 2.6s ease-out infinite }
@keyframes ring { 0% { transform: scale(.5); opacity: .9 } 100% { transform: scale(3.4); opacity: 0 } }
.walkthrough[data-active="0"] .tap-card { transform: rotate(-8deg) translate(8px, 6px) }
.walk-phone { position: relative; background: #f4f5ec; color: #173a2c; border: 6px solid #233d32; outline: 1px solid #849185; border-radius: 40px; padding: 2.5rem 1.2rem 1rem; box-shadow: 12px 17px 0 -8px #839181, 20px 28px 50px #0a211b29; max-width: 360px; margin: auto }
.speaker { position: absolute; top: 11px; left: calc(50% - 28px); width: 56px; height: 7px; background: #233d32; border-radius: 20px }
.walk-panel { padding: .7rem .25rem 1.5rem }
.walk-panel + .walk-panel { border-top: 1px solid #c7cec2 }
.walk-panel p { color: #53645a; font-size: .9375rem; line-height: 1.6 }
.walk-panel h3 { font-size: 1.5rem; margin: 1rem 0 }
.walk-panel > .screen-label { font-size: .75rem; margin-bottom: 1.5rem }
.walk-panel .answer-source { font-size: .8125rem }
.chat-head { display: flex; align-items: center; gap: .6rem; margin-bottom: 1.2rem; font-size: .9375rem }
.mini-mark svg { width: 22px; height: 22px; color: #22563d }
.saved-mark { width: 52px; margin: 1.2rem 0; color: #22563d }
.done-list { display: grid; gap: .55rem; margin-top: 1rem }
.done-list li { display: flex; align-items: baseline; gap: .7rem; padding: .7rem .85rem; background: #e7ecde; border-radius: 10px; font-size: .875rem; line-height: 1.45; color: #24402d }
.done-list li:before { content: ''; flex: none; width: .65rem; height: .35rem; border-left: 2px solid #22563d; border-bottom: 2px solid #22563d; transform: rotate(-45deg) translateY(-.1rem) }
.done-list span { flex: 0 0 auto; max-width: 45%; color: #53645a }
.done-list strong { flex: 1 1 0; min-width: 0; font-weight: 560; text-align: right }
.walk-controls { justify-content: center; flex-wrap: wrap; gap: .4rem; margin-top: 1.8rem }
.js .walk-controls { display: flex }
.walk-controls button { font-size: .8125rem; border-radius: 30px; padding: .6rem .8rem; display: flex; align-items: center; gap: .5rem }
.walk-dot { width: 6px; height: 6px; flex: none; border: 1px solid currentColor; border-radius: 50% }
.walk-controls button:disabled .walk-dot { background: currentColor }
.walk-controls .walk-pause { flex-basis: 100%; border-color: transparent; justify-content: center; border-radius: 5px; padding-block: .35rem }
.walk-controls button:disabled { border-color: transparent }
/* With scripting one panel shows at a time. Without it every panel is visible. */
.js .walk-viewport { display: grid; min-height: 360px }
.js .walk-panel { display: none; border: 0; grid-area: 1/1 }
.js .walkthrough[data-active="0"] [data-walk-frame="0"], .js .walkthrough[data-active="1"] [data-walk-frame="1"], .js .walkthrough[data-active="2"] [data-walk-frame="2"] { display: block; animation: arrive .5s var(--ease) }
@keyframes arrive { from { opacity: .2; transform: translateY(10px) } to { opacity: 1; transform: none } }

/* ---------- home: path, bridge, tiles, pay ---------- */
.path { padding-block: var(--pad) }
.path-compare { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.2rem, 3vw, 2.5rem); margin-top: 3rem; align-items: stretch }
.path-before, .path-after { padding: clamp(1.6rem, 3.2vw, 2.8rem); border-radius: 18px }
.path-before { border: 1px solid var(--line) }
.path-after { background: #15392a; color: #f1f0df; --ink: #f1f0df; --muted: #c0cfbc; --line: #4b6a52; border: 1px solid #2d5640 }
.path-compare h3 { display: flex; align-items: center; gap: .8rem; font-size: 1.3rem; margin-bottom: 1.8rem }
.path-mark svg { width: 22px; height: 22px }
.path-compare ol { display: grid; gap: 1.3rem }
.path-compare li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1rem; align-items: baseline }
.path-compare li p { color: var(--ink); line-height: 1.55 }
.path-before li p { color: var(--muted) }
.path-after li p { font-size: 1.15rem }
.path-after .num { border-color: #d2e1b2; color: #d2e1b2 }
.links-band { background: var(--wash); padding-block: var(--pad) }
.links-band h2 { max-width: 16em }
.bridge { --g: clamp(2rem, 4vw, 4rem); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--g); margin-top: 3.2rem; position: relative }
.bridge:before { content: ''; position: absolute; top: 36px; left: 36px; width: calc((100% + var(--g)) * 2 / 3); border-top: 1px solid var(--line) }
.bridge li { position: relative }
.bridge-icon { display: grid; place-items: center; width: 72px; height: 72px; border: 1px solid var(--line); border-radius: 50%; background: var(--wash); color: var(--ink) }
.bridge-icon svg { width: 34px; height: 34px }
.bridge-icon.is-mark { background: var(--accent); border-color: var(--accent); color: var(--button-ink) }
.bridge h3 { margin-top: 1.6rem }
.bridge p { margin-top: .8rem; max-width: 26em }
.num { width: 2.4rem; height: 2.4rem; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; font-size: .875rem; color: var(--muted); flex: none }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.2rem, 2.4vw, 2rem); margin-top: 3rem }
.tile a { display: flex; flex-direction: column; height: 100%; background: var(--wash); border-radius: 16px; overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s var(--ease) }
.tile a:hover { transform: translateY(-6px); box-shadow: 0 22px 50px #0a211b33; text-decoration: none }
.tile-media { display: block; aspect-ratio: 4/3; overflow: hidden }
.tile-media img { height: 100%; object-fit: cover; transition: transform 1s var(--ease) }
.tile a:hover img { transform: scale(1.045) }
.tile-body { display: flex; flex-direction: column; gap: .7rem; padding: 1.6rem 1.6rem 1.8rem; flex: 1 }
.tile-body .eyebrow { margin: 0 }
.tile h3 { font-size: 1.4rem }
.tile-go { margin-top: auto; padding-top: .8rem; font-size: .9375rem; color: var(--accent) }
.tile-go:after { content: ' →' }
.hub { padding-block: 1rem var(--pad) }
.pay { padding-block: var(--pad) }
.pay-link { margin-top: 2rem }

/* ---------- closing ---------- */
.closing { padding-block: var(--pad) }
.closing h2 { max-width: 20em }
.closing .lead { max-width: 36em; margin-top: 1.4rem }
.mail-note { margin-top: 1.5rem; font-size: .875rem }

/* ---------- page intro and scenario pages ---------- */
.page-intro { padding-block: clamp(3rem, 6vw, 5.5rem) clamp(2rem, 4vw, 3.5rem) }
.page-intro h1 { max-width: 18em }
.page-intro .lead { max-width: 40em; margin-top: 1.6rem }
.scene-image { overflow: hidden; border-radius: 16px; max-width: 960px; margin-inline: auto; aspect-ratio: 4/3 }
.scene-image img { height: 100%; object-fit: cover }
.stats-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 2.5rem; padding-block: 3rem; margin-top: 3.5rem; border-block: 1px solid var(--line) }
.stats-strip strong { display: block; font-size: clamp(1.8rem, 3.2vw, 3rem); font-weight: 480; line-height: 1.15; letter-spacing: -.04em; color: var(--ink); margin-bottom: .8rem }
.stats-strip span { display: block; font-size: .9375rem; line-height: 1.65; max-width: 26em }
.how { padding-block: var(--pad) }
.how h2 { text-align: center; margin-bottom: 3rem }
.interface-frames { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 3.5vw, 3.5rem); align-items: stretch; max-width: 1140px; margin: auto }
.screen { background: #f4f5ec; color: #173a2c; border: 1px solid #aab6a2; border-radius: 18px; box-shadow: 5px 7px 0 #81917c30; display: flex; flex-direction: column; padding: 1.5rem }
.screen p { color: #53645a; font-size: .9375rem; line-height: 1.65 }
.screen-top { border-bottom: 1px solid #c7cec2; padding-bottom: 1rem; font-size: .8125rem; line-height: 1.4 }
.screen-body { padding-block: 1.4rem; flex: 1 }
.screen h3 { font-size: 1.45rem; margin-block: 1rem }
.question { padding: .8rem 1rem; background: #e3e8dc; color: #24402d !important; border-radius: 12px 12px 2px 12px; margin-block: 1rem }
.answer { background: #fffef7; border: 1px solid #d8ddce; border-radius: 2px 12px 12px 12px; padding: 1rem }
.answer-source { border-top: 1px solid #c7cec2; margin-top: .9rem; padding-top: .7rem; color: #315c41 !important; font-size: .8125rem !important }
.record-copy { border-top: 1px solid #c7cec2; padding-top: 1rem; margin-top: 1.2rem }
.phone-foot { width: 56px; height: 3px; border-radius: 4px; background: #61765f; margin: 1rem auto 0 }
.outcome { text-align: center; font-size: clamp(1.5rem, 2.6vw, 2.5rem); line-height: 1.3; letter-spacing: -.03em; color: var(--ink); max-width: 24em; margin: 3.5rem auto 0; text-wrap: balance }

/* ---------- calculator ---------- */
.calc-band { padding-block: var(--pad) }
.calc-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; align-items: start; margin-bottom: 3rem }
.calc-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: start }
.calc fieldset { border: 0; min-width: 0 }
.calc legend { padding: 0; margin-bottom: .6rem; font-size: .8125rem; font-weight: 560; letter-spacing: .04em; color: var(--muted) }
.field { display: grid; grid-template-columns: minmax(0, 1fr) minmax(10rem, 13rem); gap: .8rem 1rem; align-items: center; padding-block: .85rem; border-bottom: 1px solid var(--line) }
.field label { font-size: .9688rem; line-height: 1.5 }
.control { display: flex; align-items: center; gap: .5rem }
.control input { flex: 1 1 0; width: auto; min-width: 4rem; min-height: 44px; padding: .5rem .75rem; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--ink); text-align: right; font-variant-numeric: tabular-nums }
.control .unit { flex: none; white-space: nowrap; min-width: 5.2em; color: var(--muted); font-size: .8125rem }
.calc-out .row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding-block: 1.1rem; border-bottom: 1px solid var(--line) }
.calc-out dt { font-size: .96rem; line-height: 1.5 }
.calc-out dd { text-align: right; white-space: nowrap }
.calc-out .figure { font-size: clamp(1.5rem, 2.4vw, 2.2rem); font-weight: 480; letter-spacing: -.03em; font-variant-numeric: tabular-nums }
.calc-out .row:first-child .figure { font-size: clamp(2rem, 3.6vw, 3.4rem) }
.calc-out .unit { margin-left: .4rem; color: var(--muted); font-size: .8125rem }
.formula { margin-top: 1.3rem; font-size: .8125rem; line-height: 1.6 }
.calc-note { margin-top: 2.2rem; font-size: .8125rem }
.calc-js-off { margin-top: .5rem; font-size: .8125rem }
.js .calc-js-off { display: none }

/* ---------- scenario footer blocks ---------- */
.fit-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; padding-block: var(--pad); align-items: start }
.fit-grid h2 { font-size: 1.1rem; font-weight: 560; letter-spacing: 0; margin-bottom: 1.2rem; color: var(--muted) }
.fit-grid h3 { font-size: 1.6rem }
.fit-grid p { margin-top: .7rem }
.fit-grid .text-link { margin-top: 1.2rem }
.more-section { padding-block: 2rem var(--pad) }
.more-scenes { border-top: 1px solid var(--line); margin-top: 2rem }
.more-scenes article { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 3rem; padding-block: 2.2rem; border-bottom: 1px solid var(--line) }
.more-scenes h3 { font-size: 1.5rem }

/* ---------- products ---------- */
.dual-entry { padding-block: 2rem var(--pad) }
.dual-figure { margin-top: 3rem; display: grid; gap: 2rem; justify-items: center }
.dual-object { display: flex; align-items: center; gap: clamp(1.5rem, 4vw, 3rem); padding: clamp(1.5rem, 4vw, 3rem) clamp(2rem, 6vw, 4.5rem); background: var(--accent); color: #eeeede; border-radius: 16px }
.dual-mark svg { width: clamp(58px, 7vw, 104px); height: auto }
.dual-qr { width: clamp(70px, 8vw, 116px); height: auto; background: #fff; padding: 7px; border-radius: 4px; image-rendering: pixelated }
.dual-captions { display: flex; gap: 3rem; text-align: center; flex-wrap: wrap; justify-content: center }
.dual-captions strong { display: block; font-size: 1rem; letter-spacing: .06em }
.dual-captions span { color: var(--muted); font-size: .875rem }
.family-section { padding-block: var(--pad) }
.family-section > img { margin-top: 2.5rem; border-radius: 16px }
.family-captions { display: flex; gap: 1.5rem; padding-block: 1.8rem; border-bottom: 1px solid var(--line); flex-wrap: wrap }
.family-captions li { flex: 1 1 140px }
.family-captions strong { font-size: 1rem; font-weight: 560 }
.family-captions p { font-size: .875rem; margin-top: .3rem }
.object-family { display: flex; gap: 1rem; margin-top: 2.5rem }
.object-family img { width: calc((100% - 2rem) / 3); border-radius: 12px }
.carrier-section { background: var(--wash); padding-block: var(--pad) }
.carrier-section .lead { max-width: 42em; margin-top: 1.4rem }
.cross-section { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, .7fr); align-items: center; gap: 3rem; padding-top: 3rem }
.cross-section > img { border-radius: 8px }
.cross-section figcaption { position: sticky; top: 8rem }
.cross-section figcaption h3 { margin-bottom: 1.8rem }
.cross-section li { display: flex; gap: 1rem; align-items: baseline; margin-bottom: 1.2rem }
.cross-section strong { font-weight: 560 }
.cross-section p { font-size: .875rem; margin-top: .2rem }
.layer-line { width: 1.5rem; height: 1px; background: var(--muted); flex: none }
.material-section { padding-block: var(--pad) 2rem }
.material-section > img { max-height: 640px; object-fit: cover; border-radius: 16px }
.material-labels { display: flex; justify-content: space-around; gap: 1rem; padding: 1.4rem 0; font-size: 1rem; border-bottom: 1px solid var(--line); flex-wrap: wrap }
.material-line { margin-top: 1.2rem; font-size: .9375rem }

/* ---------- technology, integration, pricing ---------- */
.tech-points, .depth-section, .model-section, .company-values { padding-block: var(--pad) }
.tech-list, .depth-list, .value-list { display: grid; gap: 2rem; margin-top: 2.5rem }
.tech-list li, .depth-list li, .value-list li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.5rem; align-items: start; padding-bottom: 2rem; border-bottom: 1px solid var(--line) }
.tech-list h3, .depth-list h3, .value-list h3 { font-size: clamp(1.3rem, 1.9vw, 1.7rem) }
.tech-list p, .depth-list p, .value-list p { margin-top: .7rem; max-width: 56em }
.flow .section-heading { grid-template-columns: minmax(0, 1fr) }
.relationship { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.15fr) minmax(0, .85fr); gap: 2.5rem; align-items: center; padding-top: 3rem }
.relationship p { font-size: .9375rem; margin-top: 1rem }
.relationship h3 { font-size: 1.25rem }
.document-source, .document-record { padding-block: 2rem; border-block: 1px solid var(--line); position: relative }
.document-answer { padding: 2rem; background: #f1f1e4; color: #173a2c; border-radius: 6px; box-shadow: 6px 8px 0 #64806630; position: relative }
.document-answer:before, .document-answer:after { content: ''; position: absolute; top: 50%; width: 2.5rem; border-top: 1px solid #a4b995 }
.document-answer:before { right: 100% }
.document-answer:after { left: 100% }
.document-answer p { color: #52644e }
.document-answer > .screen-label { margin: 0 0 1.2rem }
.document-answer blockquote { padding-block: 1.5rem; font-size: 1rem }
.source-rule { border-top: 1px solid #9daa91; padding-top: 1rem; font-size: .8125rem !important }
.document-source .source-rule, .document-record .source-rule { border-color: var(--line) }
.fig-icon { display: block; width: 40px; margin-bottom: 1.3rem }
.document-answer .done-list { margin: 1rem 0 1.2rem }
.class-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2.4rem 2rem; margin-top: 3rem }
.class-grid h3 { font-size: 1.15rem }
.class-grid p { margin-top: .6rem; font-size: .9375rem }
.need-section, .split-section { padding-block: var(--pad) }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; align-items: start }
.split h2 { font-size: clamp(1.4rem, 2vw, 1.9rem) }
.split .tick-list, .split .step-list { margin-top: 1.5rem }
.connection-note { font-size: .9375rem; max-width: 40em; margin-top: 1.6rem }
.tick-list { display: grid; gap: 1.1rem }
.tick-list li { padding-left: 1.9rem; position: relative; line-height: 1.6 }
.tick-list li:before { content: ''; position: absolute; left: 0; top: .5em; width: .7rem; height: .4rem; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg) }
.step-list { display: grid; gap: 1rem }
.step-list li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.2rem; align-items: baseline }
.step-list span { width: 1.7rem; height: 1.7rem; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; font-size: .75rem; color: var(--muted) }
.step-list p { line-height: 1.6 }

/* ---------- two ways to pay, what counts as one, gains and counts ---------- */
.pay-models { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 2.5vw, 1.8rem); margin-top: 2.5rem }
.pay-model { padding: clamp(1.5rem, 3vw, 2.4rem); border: 1px solid var(--line); border-radius: 16px }
.pay-model h3 { font-size: clamp(1.5rem, 2.3vw, 2.2rem); letter-spacing: -.03em }
.pay-sum { margin-top: .9rem; color: var(--ink); font-size: 1.125rem; line-height: 1.6 }
.pay-model dl { margin-top: 1.6rem; border-top: 1px solid var(--line) }
.pay-model dl > div { display: grid; grid-template-columns: minmax(5.5rem, .3fr) minmax(0, 1fr); gap: 1rem; padding-block: 1rem; border-bottom: 1px solid var(--line) }
.pay-model dt { padding-top: .2rem; font-size: .8125rem; font-weight: 560; letter-spacing: .04em; color: var(--muted) }
.pay-model dd { line-height: 1.6 }
.pay-models.three { grid-template-columns: repeat(3, minmax(0, 1fr)) }
.gains-band { padding-block: var(--pad) 0 }
.gains-band .pay-model h3 { font-size: clamp(1.3rem, 1.9vw, 1.7rem); letter-spacing: -.02em }
.stat-one { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); align-items: end }
.stat-note { font-size: 1.125rem; line-height: 1.6; color: var(--ink); max-width: 22em }
.model-section .tick-list { margin-top: 2rem }
/* revision 13: the shift on the home page, the control band and the comparison on the billing page */
.shift { padding-block: var(--pad) 0 }
.shift .shift-stats { margin-top: 3rem; grid-template-columns: repeat(3, minmax(0, 1fr)) }
.shift-note { margin-top: 2.2rem; font-size: clamp(1.15rem, 1.6vw, 1.45rem); line-height: 1.5; color: var(--ink); max-width: 34em; text-wrap: pretty }
.control-band { padding-block: var(--pad) 0 }
.control-band .class-grid { grid-template-columns: repeat(4, minmax(0, 1fr)) }
.control-band .class-grid li, .ink .class-grid li { padding-top: 1.2rem; border-top: 1px solid var(--line) }
.control-band .pay-link { margin-top: 2rem }
.compare-section { padding-block: 0 var(--pad) }
.compare-section .section-heading { padding-top: 2.4rem; border-top: 1px solid var(--line) }
.dedupe { margin-top: 1.4rem; color: var(--ink); line-height: 1.6 }
.faq { margin-top: 1.5rem; border-top: 1px solid var(--line) }
.faq > div { padding-block: 1.1rem; border-bottom: 1px solid var(--line) }
.faq dt { font-weight: 600; color: var(--ink) }
.faq dd { margin-top: .4rem; line-height: 1.6 }
.ink .tick-list li:before { border-color: #a4b995 }
.zero-list li:before { top: .45em; width: .55rem; height: .55rem; border: 1.5px solid var(--muted); border-radius: 50%; transform: none }
.split h2 + .lead { margin-top: 1.4rem }
.pay-link .text-link + .text-link { margin-left: 1.4rem }
.units-section { padding-block: 0 var(--pad) }
.units { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 2rem; margin-top: 2rem }
.units li { padding-top: 1.2rem; border-top: 1px solid var(--ink) }
.units dl > div { padding-block: .9rem; border-bottom: 1px solid var(--line) }
.units dt { font-size: .8125rem; font-weight: 560; letter-spacing: .04em; color: var(--muted) }
.units dd { margin-top: .3rem; line-height: 1.55 }
.gains, .counts { padding-block: 0 var(--pad) }
.count-list { margin-top: 2rem; border-top: 1px solid var(--line) }
.count-list > div { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 3rem; align-items: baseline; padding-block: 1.8rem; border-bottom: 1px solid var(--line) }
.count-list dt { font-size: 1.5rem; line-height: 1.3; letter-spacing: -.02em }
.count-list dd { font-size: 1.125rem; line-height: 1.6; color: var(--muted) }
.calc-compare { margin-top: 1.1rem; padding-top: 1.1rem; border-top: 1px solid var(--line); font-size: .9375rem; line-height: 1.6; color: var(--ink) }
.calc-out .row.is-price .figure { color: var(--accent) }

/* ---------- company, privacy, sample ---------- */
.brand-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem }
.brand-first { font-size: clamp(2rem, 3.8vw, 3.5rem); line-height: 1.2; letter-spacing: -.03em; color: var(--ink); font-weight: 520 }
.brand-second { margin-top: 1rem; font-size: clamp(1.05rem, 1.7vw, 1.4rem) }
.why { padding-block: var(--pad) 1rem }
.why .lead { max-width: 40em; margin-top: 1.4rem }
.reading { max-width: 880px; padding-bottom: var(--pad) }
.reading section { margin-bottom: 2.6rem }
.reading h2 { font-size: 1.6rem }
.reading p { margin-top: 1rem }
.sample-wrap { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); padding-block: 2rem var(--pad); align-items: start }
.sample-phone { background: #f4f5ec; color: #173a2c; border: 1px solid #aab6a2; border-radius: 28px; padding: 1.5rem; box-shadow: 5px 7px 0 #81917c30 }
.sample-phone p { color: #53645a; font-size: .9375rem }
.sample-phone .screen-body { padding-block: 1rem }
.sample-identity { font-size: .8125rem !important; margin-top: .5rem }
.sample-prompt { margin-top: 1rem; font-weight: 600; color: #173a2c !important }
.sample-add { margin-top: 1.1rem }
.sample-add span { display: inline-block; padding: .55rem 1.1rem; border-radius: 999px; background: #173a2c; color: #f4f5ec; font-size: .875rem; font-weight: 600 }
.sample-add-note { font-size: .8125rem !important; margin-top: .5rem }
.sample-steps-title { font-size: 1.1rem; margin-top: 1.4rem }
.sample-phone .record-copy strong { color: #173a2c; font-weight: 600 }
.sample-note h2 { font-size: 1.4rem }
.sample-note .tick-list { margin-top: 1.4rem }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .desktop-nav { display: none }
  .mobile-menu { display: block; margin-left: auto }
  .preferences { margin-left: 0 }
  .mobile-menu nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); padding: 1rem 1.5rem; border: 1px solid var(--line); box-shadow: 0 18px 45px #0002; display: grid; gap: .4rem; max-height: 70vh; overflow: auto }
  .mobile-menu nav > * { padding: .65rem }
  .header-inner { flex-wrap: wrap }
  .hero { gap: 1.5rem }
  .walk-art { padding-left: 2rem; padding-right: 1rem }
  .tap-card { left: -.5rem; width: 100px }
  .section-heading, .calc-head, .brand-grid { gap: 2.5rem }
  .screen { padding: 1rem }
  .screen h3 { font-size: 1.25rem }
  .tiles { gap: 1rem }
  .tile-body { padding: 1.2rem }
  .tile h3 { font-size: 1.2rem }
  .cross-section { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 2rem }
  .split, .fit-grid { gap: 2.5rem }
  .control-band .class-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) }
}
@media (max-width: 900px) {
  .calc-grid, .sample-wrap, .calc-head, .pay-models, .pay-models.three { grid-template-columns: minmax(0, 1fr) }
  .tiles { grid-template-columns: minmax(0, 1fr); max-width: 560px; margin-inline: auto }
  .shift .shift-stats { grid-template-columns: minmax(0, 1fr) }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 1rem }
  .control-band .class-grid { grid-template-columns: minmax(0, 1fr) }
  .header { position: relative }
  .header-inner { min-height: 64px; gap: .5rem 1rem }
  .brand { font-size: .75rem }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 1.8rem; padding-block: 2.5rem 3rem; min-height: 0 }
  .hero-art { width: 100%; max-width: 500px; margin: auto }
  .walk-art { padding: 1rem 1rem 1rem 2rem }
  .tap-card { left: 0; top: 3rem }
  .walk-phone { margin-left: auto; margin-right: 0; max-width: 360px; width: 90%; padding-inline: 1rem }
  .walk-controls { margin-top: 1.5rem }
  .path-compare { grid-template-columns: minmax(0, 1fr) }
  .bridge { grid-template-columns: minmax(0, 1fr); gap: 2.4rem }
  .bridge:before { display: none }
  .section-heading, .brand-grid, .fit-grid, .split { grid-template-columns: minmax(0, 1fr); gap: 1.8rem }
  .stats-strip { gap: 1.8rem; padding-block: 2rem }
  .stat-one { grid-template-columns: minmax(0, 1fr) }
  .interface-frames { grid-template-columns: minmax(0, 1fr); gap: 2rem; max-width: 380px }
  .screen { padding: 1.3rem }
  .screen h3 { font-size: 1.5rem }
  .outcome { margin-top: 2.5rem }
  .relationship { grid-template-columns: minmax(0, 1fr); gap: 2rem; padding-top: 2rem }
  .document-answer { padding: 1.5rem }
  .document-answer:before, .document-answer:after { width: 0; height: 2rem; border-top: 0; border-left: 1px solid #a4b995; left: 50%; right: auto; top: auto }
  .document-answer:before { bottom: 100% }
  .document-answer:after { top: 100% }
  .document-source, .document-record { padding-block: 1.5rem }
  .object-family { gap: .5rem; flex-wrap: wrap }
  .object-family img { width: 100% }
  .cross-section { grid-template-columns: minmax(0, 1fr); gap: 2rem; padding-top: 2rem }
  .cross-section figcaption { position: static }
  .cross-section figcaption ol { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem }
  .cross-section li { margin: 0; gap: .7rem }
  .layer-line { width: 1rem }
  .family-captions { gap: 1.5rem }
  .family-captions li { flex-basis: 40% }
  .material-section > img { max-height: none }
  .more-scenes article { grid-template-columns: minmax(0, 1fr); gap: 1rem }
  .count-list > div { grid-template-columns: minmax(0, 1fr); gap: .5rem; padding-block: 1.4rem }
  .tech-list li, .depth-list li, .value-list li { gap: 1rem }
  .field { grid-template-columns: minmax(0, 1fr) minmax(9rem, 11rem) }
  .dual-object { gap: 1.4rem; padding: 1.6rem 1.8rem }
  .dual-captions { gap: 1.8rem }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem }
  .footer-grid > div:first-child { grid-column: 1/-1 }
  .footer { padding-block: 3rem }
}
@media (max-width: 480px) {
  .field { grid-template-columns: minmax(0, 1fr); gap: .5rem }
  .pay-model dl > div { grid-template-columns: minmax(0, 1fr); gap: .3rem }
  .control input { text-align: left }
  .calc-out .row { flex-wrap: wrap; gap: .3rem 1rem }
}
@media (max-width: 400px) {
  .header-inner { gap: .3rem .7rem }
  .preferences summary, .mobile-menu summary { font-size: .8125rem }
  .preferences-panel { padding: 1.1rem }
  .preferences-panel ul { grid-template-columns: minmax(0, 1fr) }
  .walk-art { padding-left: .3rem; padding-right: .35rem }
  .walk-phone { width: 94%; padding-inline: .7rem; border-width: 5px; border-radius: 32px; box-shadow: 7px 10px 0 -4px #839181, 12px 17px 25px #0a211b19 }
  .tap-card { left: 0; top: .3rem; width: 75px; height: 120px; padding: 1rem .5rem }
  .tap-card svg { height: 65px }
  .walk-panel { padding: .65rem .2rem }
  .walk-panel h3 { font-size: 1.35rem }
  .cross-section figcaption ol { grid-template-columns: minmax(0, 1fr) }
  .footer-grid { grid-template-columns: minmax(0, 1fr) }
  .screen { padding: 1rem }
}

/* ---------- motion and print ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after { animation: none !important; transition: none !important }
  .object-layer { transform: none !important }
}
[data-motion=paused] *, [data-motion=paused] *:before, [data-motion=paused] *:after { animation: none !important; transition: none !important }
[data-motion=paused] .object-layer { transform: none !important }
@media print {
  .header, .footer, .skip, .js-control { display: none !important }
  .hero, .section-heading, .calc-head, .cross-section { display: block }
  .js .walk-viewport { display: block }
  .js .walk-panel { display: block !important }
  .ink { background: #fff; color: #173a2c; --ink: #173a2c; --muted: #53645a }
  .walk-art { transform: none }
  .wrap { width: 100% }
  .screen { break-inside: avoid }
}

/* ================= revision 14 ================= */
/* header: language switch beside display and menu */
.header-tools { margin-left: auto; display: flex; align-items: center; gap: .9rem }
.header-tools .preferences, .header-tools .mobile-menu { margin-left: 0 }
.lang-switch { font-size: .875rem; padding: .35rem .8rem; border: 1px solid var(--line); border-radius: 20px; white-space: nowrap }
.lang-switch:hover { text-decoration: none; background: var(--wash) }
.hero-slogan { margin-top: 2.4rem; font-size: .9375rem; letter-spacing: .02em }

/* hero: the invitation card the customer receives, beside the phone */
.walk-art { padding: 1rem 1.5rem 1rem 9.5rem }
.invite-chip { position: absolute; left: 0; top: 5.5rem; z-index: 2; width: 172px; padding: .9rem .9rem 1rem; background: #fff; color: #173a2c; border: 1px solid #c9d1c3; border-radius: 12px; box-shadow: 8px 14px 26px #0e29132b; transform: rotate(-6deg); transition: transform .6s var(--ease) }
.walkthrough[data-active="0"] .invite-chip { transform: rotate(-3deg) translate(6px, 4px) }
.invite-from { display: flex; align-items: center; gap: .4rem; font-size: .6875rem; line-height: 1.3; color: #53645a }
.invite-from .mini-mark svg, .lm-from .mini-mark svg, .form-mock-head .mini-mark svg { width: 16px; height: 16px }
.invite-chip strong { display: block; margin: .55rem 0 .75rem; font-size: .8125rem; line-height: 1.35; font-weight: 600 }
.invite-btn, .lm-btn { display: inline-block; background: #22563d; color: #fff; border-radius: 7px; padding: .4rem .7rem; font-size: .6875rem; font-weight: 600; line-height: 1.3 }

/* home sections */
.shift .shift-stats { grid-template-columns: repeat(4, minmax(0, 1fr)) }
.growth { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 2.4vw, 1.8rem); margin-top: 3rem }
.growth-card { display: flex; flex-direction: column; padding: clamp(1.5rem, 2.6vw, 2.2rem); background: var(--bg); border: 1px solid var(--line); border-radius: 16px }
.growth-card .eyebrow { margin: 0; color: var(--accent); letter-spacing: .08em }
.growth-figure { margin-top: .6rem; font-size: clamp(2.6rem, 4.8vw, 4.2rem); line-height: 1.05; font-weight: 470; letter-spacing: -.045em; color: var(--ink) }
.growth-fact { margin-top: 1rem; font-size: .9375rem }
.growth-gain { margin-top: auto; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--ink); line-height: 1.6 }
.growth-fact + .growth-gain { margin-top: 1.4rem }
.growth-gain span { display: block; font-size: .75rem; font-weight: 600; letter-spacing: .06em; color: var(--muted); margin-bottom: .35rem }
.sides-band, .uses-band { padding-block: var(--pad) }
.sides-band h2 { max-width: 18em }
.sides { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); margin-top: 3rem }
.sides li { display: flex; flex-direction: column; gap: .8rem }
.sides h3 { margin-top: .6rem }
.today { margin-top: auto; padding: .8rem 1rem; background: var(--wash); border-radius: 10px; font-size: .875rem; line-height: 1.55 }
.today span { font-weight: 600; color: var(--ink) }
.today span:after { content: ': ' }
:lang(zh-CN) .today span:after { content: '：' }
.layers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); margin-top: 3rem }
.layers > li { border-top: 1px solid var(--line); padding-top: 1.4rem }
.layer-key { font-size: .8125rem; font-weight: 650; letter-spacing: .14em; color: var(--ink) }
.layer-key span { color: var(--muted); margin-right: .7rem; letter-spacing: .04em }
.layers h3 { margin-top: .7rem; font-size: clamp(1.25rem, 1.8vw, 1.55rem) }
.layers-full { padding-block: 1rem var(--pad) }
.layers-full .screen-label { display: block; margin: 1.6rem 0 1rem; color: var(--muted) }
.layer-mock { margin-top: 1.4rem; padding: 1.2rem; background: #fbfbf6; color: #173a2c; border: 1px solid #c9d1c3; border-radius: 14px; box-shadow: 5px 7px 0 #81917c26; font-size: .875rem; min-height: 11.5rem }
.layer-mock p { color: #53645a }
.lm-from { display: flex; align-items: center; gap: .45rem; font-size: .75rem }
.lm-title { margin: .6rem 0 .8rem; font-weight: 600; color: #173a2c !important; line-height: 1.4 }
.lm-note { margin-top: .6rem; font-size: .75rem }
.lm-rows { margin-top: .6rem }
.lm-rows li { display: flex; justify-content: space-between; gap: 1rem; padding: .5rem 0; border-bottom: 1px solid #dfe4da }
.lm-rows li:last-child { border-bottom: 0 }
.lm-rows strong { font-weight: 500; color: #53645a; text-align: right; white-space: nowrap }
.lm-rows .lm-ok { color: #22563d; font-weight: 600 }
.trust-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; margin-top: 3rem }
.trust-icon { display: block; width: 36px; color: var(--accent) }
.trust-grid h3 { margin-top: 1rem; font-size: 1.2rem }
.trust-grid p { margin-top: .5rem; font-size: .9375rem }

/* product page */
.touch-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; margin-top: 3rem }
.touch { padding: 1.5rem; background: var(--bg); border: 1px solid var(--line); border-radius: 14px }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; line-height: 1.4; padding: .2rem .65rem; border-radius: 20px; background: var(--accent); color: var(--button-ink) }
.touch.is-soon .badge { background: transparent; border: 1px dashed var(--muted); color: var(--muted) }
.touch h3 { margin-top: .9rem; font-size: 1.2rem }
.touch p { margin-top: .5rem; font-size: .9375rem }
.works { padding-block: var(--pad) }
.works h2 { font-size: var(--heading) !important }

/* use cases */
.tile-drawn { display: grid; place-items: center; padding: 1.2rem; background: color-mix(in srgb, var(--wash) 70%, var(--line)) }
.scene-drawn { max-width: 960px; margin-inline: auto; padding: clamp(1.5rem, 5vw, 3.5rem); background: var(--wash); border-radius: 16px; display: grid; place-items: center }
.form-mock { width: 100%; max-width: 460px; padding: 1.3rem; background: #fbfbf6; color: #173a2c; border: 1px solid #c9d1c3; border-radius: 14px; box-shadow: 6px 8px 0 #81917c30; font-size: .875rem; line-height: 1.45 }
.form-mock p { color: #173a2c }
.form-mock-head { display: flex; align-items: center; gap: .45rem; font-weight: 600 }
.form-mock-say { margin: .9rem 0 .6rem; padding: .7rem .9rem; background: #e3e9dc; border-radius: 10px }
.form-mock li { display: flex; justify-content: space-between; gap: 1rem; padding: .5rem 0; border-bottom: 1px solid #e0e5da }
.form-mock li span { color: #173a2c }
.form-mock li strong { color: #22563d; font-weight: 500; text-align: right }
.form-mock li.is-open strong { color: #7a5c14 }
.form-mock-foot { margin-top: .8rem; font-size: .8125rem; color: #22563d !important; font-weight: 600 }
.form-mock-foot:before { content: '\2713\00a0' }
.form-mock.compact { max-width: none; padding: .9rem; font-size: .75rem; box-shadow: none; border-radius: 10px }
.form-mock.compact .form-mock-say { margin: .6rem 0 .3rem; padding: .5rem .7rem }
.form-mock.compact li { padding: .35rem 0 }
.show-demo { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(2rem, 4vw, 4rem); align-items: start; max-width: 1140px; margin: auto }
.timeline li { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1rem; padding-block: 1.1rem; border-bottom: 1px solid var(--line) }
.timeline li:first-child { padding-top: 0 }
.time { font-weight: 650; font-variant-numeric: tabular-nums; color: var(--accent); line-height: 1.6 }
.timeline h3 { font-size: 1.1rem }
.timeline p { margin-top: .3rem; font-size: .9375rem }
.compare-card { padding: 1.5rem; background: #f4f5ec; color: #173a2c; border: 1px solid #aab6a2; border-radius: 18px; box-shadow: 5px 7px 0 #81917c30; position: sticky; top: 6rem }
.compare-card .screen-label { display: block; margin-bottom: 1rem; color: #53645a }
.compare-card table { width: 100%; border-collapse: collapse; font-size: .875rem }
.compare-card th, .compare-card td { padding: .65rem .5rem; border-bottom: 1px solid #d5dcd0; text-align: left; vertical-align: top; color: #2f4a3c; font-weight: 400 }
.compare-card thead th { font-size: .75rem; font-weight: 600; color: #53645a }
.compare-card tr.is-ours th, .compare-card tr.is-ours td { background: #e1ead6; color: #173a2c; font-weight: 600 }
.compare-note { margin-top: 1rem; color: #173a2c !important; font-size: .9375rem }
.chip-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem }
.chip-row li { border: 1px solid #9fb196; border-radius: 20px; padding: .35rem .8rem; font-size: .8125rem; color: #173a2c; background: #fff }
.table-scroll { overflow-x: auto }
.start-band h2 { margin-top: .4rem; font-size: var(--heading) }
.start-band .lead { margin-top: 0 }

/* trust page */
.checks { padding-bottom: var(--pad) }
.check-table { width: 100%; border-collapse: collapse; min-width: 760px }
.check-table th, .check-table td { padding: 1.3rem 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); line-height: 1.6; font-size: .9375rem }
.check-table thead th { font-size: .8125rem; font-weight: 600; letter-spacing: .04em; color: var(--muted); padding-block: .8rem }
.check-table tbody th { font-weight: 600; color: var(--ink); width: 15%; font-size: 1rem }
.check-table tbody th .trust-icon { width: 30px; margin-bottom: .6rem }
.check-table td { color: var(--muted) }
.check-table td.is-ours { color: var(--ink); background: color-mix(in srgb, var(--accent) 9%, transparent) }
.table-note { margin-top: 1rem; font-size: .875rem }

/* plans page */
.early-note { display: inline-block; margin-top: 1.4rem; padding: .45rem .95rem; border-radius: 20px; background: var(--wash); color: var(--ink); font-size: .875rem }
.plans-section { padding-bottom: var(--pad) }
.plan-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem }
.plan { display: flex; flex-direction: column; padding: 1.6rem 1.3rem; border: 1px solid var(--line); border-radius: 16px }
.plan.is-marked { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent) }
.plan h3 { font-size: 1.25rem }
.plan-who { margin-top: .4rem; font-size: .875rem; min-height: 3.1em }
.plan-price { margin-top: 1.2rem; display: flex; flex-wrap: wrap; align-items: baseline; gap: .1rem .4rem }
.plan-price strong { font-size: clamp(1.55rem, 2.2vw, 2.1rem); font-weight: 500; letter-spacing: -.03em; color: var(--ink); line-height: 1.15 }
.plan-price span { font-size: .875rem }
.plan-what { margin-top: 1rem; color: var(--ink); font-size: .9375rem; line-height: 1.55 }
.plan-note { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .8125rem; line-height: 1.5 }
.plan-what + .plan-note { margin-top: 1.4rem }

/* company page */
.mission { padding-block: 1rem var(--pad) }
.mission .eyebrow { margin-bottom: .8rem }
.mission-line { font-size: var(--title); line-height: 1.15; letter-spacing: -.035em; color: var(--ink); max-width: 16em; font-weight: 520; text-wrap: balance }
.road { margin-top: 1.5rem; border-top: 1px solid var(--line) }
.road li { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: 1rem; padding-block: 1rem; border-bottom: 1px solid var(--line) }
.road li .time { color: var(--ink) }
.road li.is-now .time { color: var(--accent) }
.road p { font-size: .9375rem; line-height: 1.6 }
.road em { font-style: normal; font-size: .75rem; font-weight: 600; padding: .1rem .55rem; border-radius: 10px; background: var(--accent); color: var(--button-ink); margin-left: .35rem; white-space: nowrap }

@media (max-width: 1100px) {
  .walk-art { padding-left: 7.5rem }
  .invite-chip { width: 148px; top: 4.5rem }
  .shift .shift-stats { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .plan-grid { grid-template-columns: repeat(3, minmax(0, 1fr)) }
  .trust-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .header-tools { gap: .6rem }
}
@media (max-width: 900px) {
  .growth, .sides, .layers { grid-template-columns: minmax(0, 1fr) }
  .show-demo { grid-template-columns: minmax(0, 1fr) }
  .compare-card { position: static }
  .layer-mock { min-height: 0; max-width: 460px }
}
@media (max-width: 760px) {
  .walk-art { padding: 1rem }
  .invite-chip { position: static; width: auto; max-width: 260px; margin: 0 0 1rem; transform: rotate(-1.5deg) }
  .walkthrough[data-active="0"] .invite-chip { transform: rotate(-1deg) }
  .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .trust-grid { grid-template-columns: minmax(0, 1fr) }
  .check-table { min-width: 0 }
  .check-table thead { display: none }
  .check-table, .check-table tbody, .check-table tr, .check-table th, .check-table td { display: block; width: auto }
  .check-table tr { padding-block: 1.2rem; border-bottom: 1px solid var(--line) }
  .check-table tbody th { width: auto; padding: 0 0 .6rem; border: 0; display: flex; align-items: center; gap: .7rem }
  .check-table tbody th .trust-icon { margin: 0 }
  .check-table td { border: 0; padding: .55rem 0 }
  .check-table td.is-ours { padding: .8rem 1rem; border-radius: 10px }
  .check-table td:before { content: attr(data-label); display: block; font-size: .75rem; font-weight: 600; letter-spacing: .04em; color: var(--muted); margin-bottom: .2rem }
  .timeline li { grid-template-columns: 5.2rem minmax(0, 1fr) }
  .road li { grid-template-columns: minmax(0, 1fr); gap: .2rem }
  .lang-switch { padding: .3rem .65rem; font-size: .8125rem }
}
@media (max-width: 480px) {
  .plan-grid { grid-template-columns: minmax(0, 1fr) }
  .plan-who { min-height: 0 }
  .shift .shift-stats { grid-template-columns: minmax(0, 1fr) }
}

/* revision 14: drawn scenes (touchpoint + what the AI shows) */
.works { padding-block: var(--pad) 0 }
.tile-drawn { padding: 1rem }
.scene-stage { max-width: 1040px; margin-inline: auto }
.scene-art { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(1.2rem, 3vw, 2.5rem); align-items: center; padding: clamp(1.5rem, 5vw, 3.5rem); background: var(--wash); border-radius: 16px; font-size: .875rem; line-height: 1.45 }
.scene-art.compact { width: 100%; height: 100%; padding: .4rem; gap: .7rem; background: none; border-radius: 0; font-size: .6875rem }
.sa-card { justify-self: end; width: 100%; max-width: 270px; padding: 1.1rem; background: #fff; color: #173a2c; border: 1px solid #c9d1c3; border-radius: 12px; box-shadow: 8px 12px 24px #0e29131f; transform: rotate(-4deg) }
.sa-card p, .sa-card span { color: #53645a }
.sa-card strong { color: #173a2c }
.sa-invite strong { display: block; margin: .6rem 0 .8rem; font-size: 1em; line-height: 1.35 }
.sa-label { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: .9rem; align-items: center }
.sa-label .qr { width: 72px; height: 72px }
.sa-label strong { display: block; font-size: 1em; line-height: 1.3 }
.sa-label span { display: block; font-size: .85em; margin-top: .15rem }
.sa-label p { margin-top: .5rem; font-size: .85em; line-height: 1.4 }
.sa-label.is-plate { background: linear-gradient(135deg, #eef0ea, #d3d9cf); border-color: #a9b3a4; border-radius: 6px; box-shadow: inset 0 0 0 4px #ffffff70, 8px 12px 24px #0e29131f }
.sa-screen { padding: 1.1rem; background: #f4f5ec; color: #173a2c; border: 1px solid #aab6a2; border-radius: 14px; box-shadow: 5px 7px 0 #81917c30 }
.sa-screen p { color: #2f4a3c }
.sa-head { display: flex; align-items: center; gap: .45rem; font-weight: 600; color: #173a2c !important }
.sa-head .mini-mark svg { width: 16px; height: 16px }
.sa-rows { margin-top: .6rem }
.sa-rows li { display: flex; justify-content: space-between; gap: .8rem; padding: .45rem 0; border-bottom: 1px solid #d5dcd0 }
.sa-rows li:last-child { border-bottom: 0 }
.sa-rows strong { font-weight: 500; color: #53645a; white-space: nowrap }
.sa-rows .is-ours span, .sa-rows .is-ours strong { color: #173a2c; font-weight: 700 }
.sa-rows .is-ours strong:before { content: '\2713\00a0'; color: #22563d }
.sa-say { margin: .7rem 0 .5rem; padding: .55rem .75rem; background: #e3e9dc; border-radius: 10px }
.sa-reply { padding: .55rem .75rem; background: #fff; border: 1px solid #d5dcd0; border-radius: 10px }
.compact .sa-card { padding: .65rem; border-radius: 9px; box-shadow: 4px 6px 12px #0e29131a }
.compact .sa-label { grid-template-columns: 40px minmax(0, 1fr); gap: .5rem }
.compact .sa-label .qr { width: 40px; height: 40px }
.compact .sa-label p { display: none }
.compact .sa-screen { padding: .65rem; border-radius: 10px; box-shadow: 3px 4px 0 #81917c30 }
.compact .sa-say, .compact .sa-reply { padding: .4rem .5rem; margin-block: .4rem .3rem }
.compact .sa-reply { display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden }
.compact .invite-btn { font-size: .625rem; padding: .3rem .5rem }
.compact .form-mock { padding: .6rem }
.compact .form-mock li { padding: .25rem 0; gap: .5rem }
@media (max-width: 760px) {
  .scene-art:not(.compact) { grid-template-columns: minmax(0, 1fr) }
  .scene-art:not(.compact) .sa-card { justify-self: start; transform: rotate(-2deg) }
}
.sa-card .invite-btn { color: #fff }
/* compact scenes inside the use-case tiles: the screen at the back, the touchpoint in front */
.tile-drawn { position: relative; padding: 0 }
.scene-art.compact { display: block; position: absolute; inset: 0; padding: 0 }
.compact .sa-screen, .compact .form-mock { position: absolute; top: 1.1rem; right: 1.1rem; width: 70%; max-height: calc(100% - 2.2rem); overflow: hidden }
.compact .sa-card { position: absolute; left: 1.1rem; bottom: 1.1rem; z-index: 1; width: 50%; max-width: 210px; justify-self: auto; transform: rotate(-5deg) }
.compact .form-mock li:nth-child(n+3), .compact .form-mock-foot, .compact .form-mock .form-mock-head + .form-mock-say + ul li:nth-child(n+3) { display: none }
.compact .sa-reply { -webkit-line-clamp: 3 }
.compact .sa-invite strong { margin: .35rem 0 .5rem }
.ph { display: inline-block; max-width: 100% }
:lang(en) .ph { display: inline }

/* ================= revision 15 ================= */
/* hero: the working entry */
.hero-try { align-self: center; min-width: 0 }
.try-card { padding: clamp(1.5rem, 3vw, 2.4rem); background: color-mix(in srgb, var(--bg) 70%, #fff); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 24px 60px #0a211b14 }
[data-theme=dark] .try-card { background: var(--wash) }
.try-card .eyebrow { margin-bottom: .5rem; color: var(--accent); letter-spacing: .06em }
.try-card h2 { font-size: clamp(1.5rem, 2.2vw, 2rem) }
.try-steps { display: grid; gap: 1.5rem; margin-top: 1.6rem }
.try-steps > li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1rem; align-items: start }
.try-steps h3 { font-size: 1.1rem }
.try-steps p { margin-top: .3rem; font-size: .9375rem; line-height: 1.55 }
.try-add { margin-top: 1rem }
.try-prompts { display: grid; gap: .5rem; margin-top: .9rem }
.try-prompt { display: block; padding: .7rem .95rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); font-size: .875rem; line-height: 1.45; transition: border-color .2s }
.try-prompt:hover { text-decoration: none; border-color: var(--accent) }
.try-prompt:after { content: '\00a0\2197'; color: var(--accent) }
.try-inside { margin-top: 1.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .875rem; line-height: 1.6 }
.try-foot { margin-top: .8rem; font-size: .8125rem; line-height: 1.6 }
.try-foot a { text-decoration: underline; text-underline-offset: .2em; color: var(--ink) }
/* growth without figures */
.growth-card h3 { margin-top: .8rem; font-size: clamp(1.25rem, 1.8vw, 1.5rem) }
.growth-card .growth-fact { margin-top: .8rem }
/* calculators on the use cases */
.value-links span { display: block; margin-bottom: .4rem; color: var(--muted); font-size: .9375rem }
.start-band { padding-block: var(--pad) }
.start-band .split { align-items: start }
@media (max-width: 760px) {
  .hero-try { width: 100% }
  .try-card { padding: 1.3rem }
}

/* ================= revision 16 ================= */
/* home: one promise, one action, the product itself as the only visual */
.hero { min-height: 0; padding-block: clamp(2.5rem, 4.5vw, 4rem); gap: clamp(2rem, 5vw, 5rem) }
.hero h1 { max-width: 12em }
:lang(zh-CN) .hero h1 { font-size: clamp(2.2rem, 3.9vw, 3.8rem) }
.hero .lead { margin-top: 1.4rem }
.hero-mock { display: grid; justify-items: center; align-self: center }
.hero-mock .form-mock { max-width: 440px; box-shadow: 0 24px 60px #0a211b1f; transform: rotate(-1.5deg) }
.hero-try-link { margin-top: 1.1rem }
.hero-try-link .text-link { font-size: .9375rem }
.hero .hero-slogan { margin-top: 1.6rem; color: var(--muted) }
.home-for, .home-keep, .home-how { padding-block: clamp(2.4rem, 4vw, 3.4rem) }
.home-closing { padding-block: clamp(2.6rem, 4.5vw, 4rem) }
.for-list { margin-top: 1.4rem; border-top: 1px solid var(--line) }
.for-list a { display: grid; grid-template-columns: minmax(9rem, .28fr) minmax(0, 1fr) auto; gap: .4rem 2rem; align-items: baseline; padding-block: 1.1rem; border-bottom: 1px solid var(--line) }
.for-list a:hover { text-decoration: none }
.for-list a:hover .for-head { text-decoration: underline; text-underline-offset: .25em }
.for-head { font-weight: 600; font-size: 1.15rem; line-height: 1.35 }
.for-text { color: var(--muted); line-height: 1.6 }
.for-list .tile-go { margin: 0; padding: 0; white-space: nowrap }
.home-steps { margin-top: 1.4rem; gap: 1rem }
.home-steps li { padding-bottom: 1rem }
.home-keep .tick-list { margin-top: 1.3rem; max-width: 52em; gap: .8rem }
.home-keep .pay-link { margin-top: 1.3rem }
/* try-it page */
.try-section { padding-block: 0 var(--pad); max-width: 760px }
/* product: today and planned, kept apart */
.planned-list li { color: var(--muted) }
.planned-list li:before { border-color: var(--muted); opacity: .7 }
@media (max-width: 760px) {
  .hero-mock { width: 100%; max-width: 460px; margin: auto }
  .hero-mock .form-mock { transform: none }
  .for-list a { grid-template-columns: minmax(0, 1fr); gap: .3rem }
  .for-list .tile-go { padding-top: .2rem }
}

/* revision 17: the hero is the try-it entry; the chat mock shows what the visitor gets in Claude */
.hero-note { margin-top: 1rem; max-width: 30em; font-size: .9375rem; line-height: 1.55; color: var(--muted) }
.hero .actions { margin-top: 1.8rem }
.hero-art .hero-try { width: 100%; max-width: 470px; margin-inline: auto }
.chat-mock { padding: 1.2rem 1.3rem; background: #fbfbf6; color: #173a2c; border: 1px solid #c9d1c3; border-radius: 14px; box-shadow: 6px 8px 0 #81917c30; font-size: .9rem; line-height: 1.5; transform: rotate(-1.2deg) }
.chat-mock .chat-head { margin-bottom: .6rem; font-size: .8125rem; color: #5d6660 }
.chat-mock .chat-head strong { color: #173a2c }
.chat-mock .question { margin-block: .6rem .8rem }
.chat-mock .answer p { color: #173a2c }
.chat-mock .chat-foot { margin-top: .7rem; padding-top: .6rem; border-top: 1px solid #d8ddce; font-size: .8125rem; color: #5d6660 }
.try-prompts-title { margin-top: 1.5rem }
.hero-art .try-prompts { margin-top: .6rem }
.class-grid.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.2rem 2.4rem; margin-top: 2.2rem }
.class-grid.three-up h3 { font-size: 1.2rem }
.home-fast, .home-price { padding-block: var(--pad) }
.home-price .lead { max-width: 36em; font-size: clamp(1.25rem, 1.8vw, 1.6rem) }
.home-price .pay-link { margin-top: 1.2rem }
@media (max-width: 800px) { .class-grid.three-up { grid-template-columns: minmax(0, 1fr); gap: 1.6rem } .chat-mock { transform: none } }