.infinitas-app-case {
  --im-accent: #90b9c6;
  --im-accent-strong: #b8dae2;
  --im-ink: #dce7e7;
  --im-soft: rgba(220, 231, 231, .68);
  --im-panel: rgba(14, 22, 25, .78);
  --im-line: rgba(184, 218, 226, .16);
  background: #070c0e;
  color: var(--im-ink);
}

.infinitas-app-case [data-lang="zh"] { display: none; }
[data-case-lang="zh"] .infinitas-app-case [data-lang="en"] { display: none; }
[data-case-lang="zh"] .infinitas-app-case [data-lang="zh"] { display: inline; }

.infinitas-app-case nav {
  border-bottom: 1px solid var(--im-line);
  background: rgba(7, 12, 14, .84);
  backdrop-filter: blur(20px) saturate(1.15);
  -webkit-backdrop-filter: blur(20px) saturate(1.15);
}

.infinitas-app-case nav .logo,
.infinitas-app-case nav .nav-links a { color: var(--im-ink); }
.infinitas-app-case nav .logo .logo-dot { background: var(--im-accent); }
.infinitas-app-case nav .nav-links a::after { background: var(--im-accent); }

.infinitas-app-case.mode-arch {
  --im-accent: #597984;
  --im-accent-strong: #2f5e6a;
  --im-ink: #202729;
  --im-soft: rgba(32, 39, 41, .68);
  --im-panel: rgba(240, 243, 240, .88);
  --im-line: rgba(32, 39, 41, .13);
  background: #eef0ec;
  color: var(--im-ink);
}

.infinitas-app-case.mode-arch nav {
  background: rgba(238, 240, 236, .9);
  border-color: var(--im-line);
}
.infinitas-app-case.mode-arch nav .logo,
.infinitas-app-case.mode-arch nav .nav-links a { color: var(--im-ink); }

.im-language {
  min-width: 52px;
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--im-line);
  border-radius: 999px;
  background: transparent;
  color: var(--im-ink);
  font: 13px var(--font-mono);
  letter-spacing: .08em;
  cursor: pointer;
}
.im-language:hover,
.im-language:focus-visible { border-color: var(--im-accent); color: var(--im-accent-strong); }

.im-progress { position: fixed; inset: 0 0 auto; z-index: 240; height: 2px; pointer-events: none; }
.im-progress span { display: block; width: 100%; height: 100%; background: var(--im-accent-strong); transform: scaleX(0); transform-origin: left; }

.infinitas-app-case main { overflow: clip; }
.im-shell { width: min(1440px, 100%); margin-inline: auto; padding-inline: clamp(24px, 5.5vw, 88px); }
.im-section { position: relative; padding: clamp(96px, 10vw, 160px) 0; border-top: 1px solid var(--im-line); }
.im-kicker { color: var(--im-accent-strong); font: 500 13px/1.4 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.im-body { color: var(--im-soft); font-size: clamp(15px, 1.2vw, 18px); line-height: 1.8; }
.im-section-copy { max-width: 920px; }
.im-section-copy h2 { margin-top: 22px; color: var(--im-ink); font: 400 clamp(36px, 5.2vw, 76px)/1.02 var(--font-serif); letter-spacing: -.035em; text-wrap: balance; }
.im-section-index { display: flex; gap: 18px; margin-bottom: clamp(46px, 6vw, 84px); color: var(--im-soft); font: 13px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.im-section-index > span:first-child { color: var(--im-accent-strong); }

.im-hero { position: relative; padding: 148px 0 0; background: #070c0e; color: #dce7e7; }
.im-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 18%, rgba(144, 185, 198, .13), transparent 31%),
    linear-gradient(rgba(184, 218, 226, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 218, 226, .04) 1px, transparent 1px);
  background-size: auto, 72px 72px, 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}
.im-hero-copy { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); gap: clamp(72px, 8vw, 136px); align-items: center; padding-bottom: clamp(62px, 8vw, 112px); }
.im-hero-copy h1 { max-width: 1180px; margin: 26px 0 34px; font: 400 clamp(62px, 9.5vw, 148px)/.82 var(--font-serif); letter-spacing: -.065em; }
.im-hero-copy h1 em { color: #93abb1; font-weight: 400; }
.im-lede { max-width: 770px; color: rgba(220, 231, 231, .74); font-size: clamp(18px, 1.6vw, 24px); line-height: 1.55; }
.im-origin-extension { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 770px; margin: 38px 0 0; border-top: 1px solid rgba(220, 231, 231, .18); border-bottom: 1px solid rgba(220, 231, 231, .18); }
.im-origin-extension > div { padding: 18px 22px 20px 0; }
.im-origin-extension > div + div { padding-left: 22px; border-left: 1px solid rgba(220, 231, 231, .18); }
.im-origin-extension dt { color: #90b9c6; font: 12px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.im-origin-extension dd { margin: 8px 0 0; color: rgba(220, 231, 231, .82); font-size: 14px; line-height: 1.5; }
.im-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 42px; }
.im-action { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 50px; padding: 0 20px; border: 1px solid rgba(220, 231, 231, .22); border-radius: 999px; color: #dce7e7; font: 13px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.im-action:hover,
.im-action:focus-visible { border-color: #90b9c6; color: #fff; }
.im-action-primary { background: #dce7e7; color: #0a1113; border-color: #dce7e7; }
.im-action-primary:hover,
.im-action-primary:focus-visible { background: #90b9c6; color: #071012; }
.im-action i { font-style: normal; font-size: 18px; }
.im-hero-signature { align-self: center; min-width: 0; padding-top: 72px; }
.im-hero-signature > img { display: block; width: min(100%, 390px); margin-inline: auto; filter: invert(1); opacity: .88; }
.im-hero-signature > p { max-width: 28ch; margin: 34px auto 0; color: rgba(220, 231, 231, .62); font: 14px/1.65 var(--font-mono); letter-spacing: .04em; }
.im-hero-signature ol { max-width: 390px; margin: 34px auto 0; padding: 0; border-top: 1px solid rgba(220, 231, 231, .18); list-style: none; }
.im-hero-signature li { display: grid; grid-template-columns: 42px 1fr; align-items: center; min-height: 58px; border-bottom: 1px solid rgba(220, 231, 231, .18); }
.im-hero-signature li > span { color: var(--im-accent-strong); font: 11px var(--font-mono); letter-spacing: .08em; }
.im-hero-signature li > b { color: rgba(220, 231, 231, .86); font: 500 12px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }

.im-hero-proof { margin-top: 0; }
.im-hero-loop { padding-bottom: clamp(72px, 9vw, 128px); }

.im-project-strip { display: grid; grid-template-columns: repeat(4, 1fr); padding-top: 34px; padding-bottom: 72px; border-top: 1px solid rgba(220, 231, 231, .14); background: #070c0e; }
.im-project-strip dl { padding: 0 20px; border-left: 1px solid rgba(220, 231, 231, .14); }
.im-project-strip dl:first-child { padding-left: 0; border-left: 0; }
.im-project-strip dt { color: #90b9c6; font: 13px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.im-project-strip dd { margin: 8px 0 0; color: rgba(220, 231, 231, .74); font-size: 14px; }

.im-identity { background: transparent; }
.im-identity-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr); gap: clamp(56px, 9vw, 144px); align-items: start; }
.im-identity-mark { min-width: 0; }
.im-identity-logo { display: grid; place-items: center; min-height: clamp(300px, 34vw, 480px); margin-top: 36px; border: 1px solid var(--im-line); background: var(--im-panel); }
.im-identity-logo img { width: min(72%, 360px); height: auto; filter: invert(1); }
.mode-arch .im-identity-logo img { filter: none; }
.im-identity-wordmark { display: flex; align-items: center; gap: 18px; margin-top: 22px; color: var(--im-ink); }
.im-identity-wordmark span { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .12em; }
.im-identity-wordmark strong { font: 400 clamp(26px, 3vw, 42px) var(--font-serif); }
.im-identity-copy { padding-top: 8px; }
.im-identity-copy h2 { max-width: 650px; color: var(--im-ink); font: 400 clamp(34px, 4.6vw, 66px)/1.02 var(--font-serif); }
.im-identity-copy p { max-width: 58ch; margin-top: 28px; color: var(--im-soft); font-size: 15px; line-height: 1.75; }
.im-identity-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 56px; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-identity-facts span { display: grid; gap: 18px; min-height: 128px; padding: 18px 14px 18px 0; border-right: 1px solid var(--im-line); }
.im-identity-facts span + span { padding-left: 14px; }
.im-identity-facts span:last-child { border-right: 0; }
.im-identity-facts b { color: var(--im-accent-strong); font: 12px var(--font-mono); }
.im-identity-facts em { color: var(--im-ink); font: 400 17px/1.25 var(--font-serif); font-style: normal; }
.im-identity-construction { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(240px, .6fr); gap: clamp(18px, 3vw, 42px); align-items: end; margin-top: clamp(56px, 8vw, 112px); }
.im-identity-construction figure { margin: 0; }
.im-identity-construction figure img { display: block; width: 100%; border: 1px solid var(--im-line); }
.im-identity-construction figcaption { display: flex; justify-content: space-between; gap: 16px; margin-top: 12px; color: var(--im-soft); font: 11px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.im-identity-construction figcaption span:first-child { color: var(--im-accent-strong); }
.im-identity-application { display: flex; align-items: center; gap: 20px; min-height: 128px; padding: 24px 0; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-identity-app-mark { display: grid; flex: 0 0 78px; place-items: center; width: 78px; height: 78px; border: 1px solid var(--im-line); border-radius: 50%; background: var(--im-panel); }
.im-identity-app-mark img { width: 58px; height: 58px; filter: invert(1); }
.mode-arch .im-identity-app-mark img { filter: none; }
.im-identity-application b { display: block; color: var(--im-ink); font: 500 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.im-identity-application small { display: block; margin-top: 12px; color: var(--im-soft); font-size: 13px; line-height: 1.55; }

.mode-arch .im-section { border-color: var(--im-line); }
.mode-arch .im-section-copy h2,
.mode-arch .im-kicker,
.mode-arch .im-section-index > span:first-child { color: var(--im-ink); }

.im-context-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); gap: clamp(56px, 9vw, 144px); align-items: end; }
.im-context-grid .im-body { max-width: 600px; }
.im-context-grid .im-body p + p { margin-top: 24px; }
.im-inline-link { display: inline-flex; margin-top: 30px; border-bottom: 1px solid var(--im-accent); color: var(--im-accent-strong); font: 13px var(--font-mono); letter-spacing: .06em; }
.im-relation-diagram { display: grid; grid-template-columns: minmax(0, 1fr) minmax(72px, .28fr) minmax(0, 1fr) minmax(72px, .28fr) minmax(0, 1fr); align-items: center; margin-top: clamp(64px, 9vw, 128px); }
.im-relation-node { min-height: 174px; padding: 26px 0; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-relation-node > span { color: var(--im-accent-strong); font: 12px var(--font-mono); }
.im-relation-node strong { display: block; margin-top: 36px; color: var(--im-ink); font: 400 clamp(27px, 3vw, 42px) var(--font-serif); }
.im-relation-node small { display: block; margin-top: 8px; color: var(--im-soft); font-size: 14px; }
.im-relation-connector { display: flex; align-items: center; padding: 0 14px; color: var(--im-accent-strong); }
.im-relation-connector i { flex: 1; height: 1px; background: var(--im-line); }
.im-relation-connector b { font: 400 18px var(--font-mono); }
.im-loop-logic { margin-top: clamp(88px, 11vw, 160px); }
.im-loop-logic .im-section-copy h2 { max-width: 1050px; }
.im-loop-diagram { display: grid; grid-template-columns: minmax(150px, .8fr) minmax(72px, .45fr) minmax(260px, 1.5fr) minmax(72px, .45fr) minmax(150px, .8fr); align-items: center; margin-top: clamp(48px, 7vw, 92px); }
.im-loop-entry,
.im-loop-center { min-height: 190px; padding: 26px; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-loop-entry > span,
.im-loop-center > span { color: var(--im-accent-strong); font: 13px var(--font-mono); }
.im-loop-entry strong,
.im-loop-center strong { display: block; margin-top: 54px; color: var(--im-ink); font: 400 clamp(23px, 2.4vw, 36px)/1.08 var(--font-serif); }
.im-loop-entry small,
.im-loop-center small { display: block; margin-top: 9px; color: var(--im-soft); font-size: 13px; line-height: 1.5; }
.im-loop-center { text-align: center; border: 1px solid var(--im-line); border-radius: 50%; }
.im-loop-center > span { font: 400 34px/1 var(--font-serif); }
.im-loop-center strong { margin-top: 26px; }
.im-loop-path { position: relative; min-height: 120px; color: var(--im-accent-strong); }
.im-loop-path i { position: absolute; top: 50%; left: 0; right: 0; height: 1px; background: var(--im-line); }
.im-loop-path b { position: absolute; right: 16%; font: 400 18px var(--font-mono); }
.im-loop-path b:nth-of-type(1) { top: 22%; }
.im-loop-path b:nth-of-type(2) { bottom: 22%; }
.im-loop-path-reverse b { right: auto; left: 16%; }
.im-loop-note { max-width: 980px; margin-top: 36px; color: var(--im-soft); font-size: 14px; line-height: 1.75; }
.im-persona-intro { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); gap: clamp(48px, 8vw, 128px); align-items: end; margin-top: clamp(88px, 11vw, 160px); }
.im-persona-intro h2 { max-width: 760px; }
.im-persona-note { max-width: 46ch; color: var(--im-soft); font-size: 14px; line-height: 1.7; }
.im-persona-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 48px; }
.im-persona { min-width: 0; padding: clamp(28px, 4vw, 56px); border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-persona:first-child { padding-left: 0; }
.im-persona + .im-persona { border-left: 1px solid var(--im-line); }
.im-persona-heading > span { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .1em; }
.im-persona h3 { max-width: 12ch; margin-top: 36px; color: var(--im-ink); font: 400 clamp(30px, 3.8vw, 54px)/1.02 var(--font-serif); }
.im-persona > p { max-width: 54ch; margin-top: 26px; color: var(--im-soft); font-size: 15px; line-height: 1.7; }
.im-persona dl { margin-top: 42px; }
.im-persona dl > div { display: grid; grid-template-columns: 142px 1fr; gap: 20px; padding: 16px 0; border-top: 1px solid var(--im-line); }
.im-persona dt { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.im-persona dd { margin: 0; color: var(--im-soft); font-size: 14px; line-height: 1.55; }
.im-research { margin-top: clamp(96px, 12vw, 176px); padding-top: clamp(54px, 7vw, 92px); border-top: 1px solid var(--im-line); }
.im-research-head { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); gap: clamp(48px, 8vw, 128px); align-items: end; }
.im-research-head > p { max-width: 52ch; color: var(--im-soft); font-size: 15px; line-height: 1.75; }
.im-research-findings { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: clamp(54px, 7vw, 88px); border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-research-findings article { min-height: 260px; padding: 26px; }
.im-research-findings article + article { border-left: 1px solid var(--im-line); }
.im-research-findings article > span { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .08em; }
.im-research-findings strong { display: block; margin-top: 56px; color: var(--im-ink); font: 400 clamp(24px, 2.5vw, 36px) var(--font-serif); }
.im-research-findings p { margin-top: 16px; color: var(--im-soft); font-size: 14px; line-height: 1.65; }
.im-next-iteration { display: grid; grid-template-columns: 220px 1fr; gap: 36px; margin-top: 48px; padding: 26px 0; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-next-iteration > span { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.im-next-iteration p { max-width: 850px; color: var(--im-soft); font-size: 15px; line-height: 1.7; }
.im-system { background: linear-gradient(180deg, rgba(144, 185, 198, .045), transparent); }
.im-journey-stages { display: grid; grid-template-columns: 2fr 2fr 1fr; margin-top: clamp(62px, 8vw, 112px); }
.im-journey-stage { min-width: 0; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); background: #070c0e; }
.im-journey-stage + .im-journey-stage { border-left: 1px solid var(--im-line); }
.mode-arch .im-journey-stage { background: #eef0ec; }
.im-journey-stage header { display: flex; align-items: baseline; gap: 14px; padding: 18px 22px; border-bottom: 1px solid var(--im-line); }
.im-journey-stage header > span { color: var(--im-accent-strong); font: 12px var(--font-mono); }
.im-journey-stage h3 { color: var(--im-ink); font: 500 13px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.im-stage-touchpoints { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 0; list-style: none; }
.im-journey-stage:last-child .im-stage-touchpoints { grid-template-columns: 1fr; }
.im-stage-touchpoints li { min-height: 220px; padding: 26px 22px; border-left: 1px solid var(--im-line); }
.im-stage-touchpoints li:first-child { border-left: 0; }
.im-stage-touchpoints li > span { color: var(--im-accent-strong); font: 12px var(--font-mono); }
.im-stage-touchpoints strong { display: block; margin: 30px 0 12px; color: var(--im-ink); font: 400 clamp(24px, 2.6vw, 38px) var(--font-serif); }
.im-stage-touchpoints small { display: block; max-width: 22ch; color: var(--im-soft); font-size: 14px; line-height: 1.55; }

.im-prototype { background: #0b1012; color: #dce7e7; }
.mode-arch .im-prototype { background: #e5e8e4; color: #202729; }
.im-prototype-head { display: grid; grid-template-columns: 1fr minmax(260px, 360px); gap: 64px; align-items: end; }
.im-prototype-note { color: var(--im-soft); font-size: 14px; line-height: 1.65; }
.im-responsive-proof { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .28886256fr); gap: clamp(16px, 2vw, 28px); align-items: start; margin-top: 64px; }
.im-responsive-preview { min-width: 0; margin: 0; }
.im-responsive-surface { overflow: hidden; border: 1px solid rgba(220, 231, 231, .18); background: #05090a; box-shadow: 0 24px 70px rgba(0, 0, 0, .24); }
.im-responsive-desktop .im-responsive-surface { aspect-ratio: 16 / 10; border-radius: var(--radius-inset-media); }
.im-responsive-mobile { width: 100%; justify-self: stretch; }
.im-responsive-mobile .im-responsive-surface { aspect-ratio: 390 / 844; border-radius: 28px; }
.im-responsive-surface img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.im-responsive-preview figcaption { display: flex; justify-content: space-between; gap: 18px; margin-top: 14px; color: rgba(220, 231, 231, .58); font: 10px var(--font-mono); letter-spacing: .09em; text-transform: uppercase; }
.mode-arch .im-responsive-preview figcaption { color: rgba(32, 39, 41, .62); }
.im-responsive-preview figcaption span:last-child { text-align: right; }
.im-responsive-mobile figcaption { display: grid; gap: 5px; }
.im-responsive-mobile figcaption span:last-child { text-align: left; }
.im-prototype-launch { position: relative; display: block; min-height: clamp(440px, 48vw, 620px); margin-top: clamp(54px, 7vw, 92px); overflow: hidden; border: 1px solid var(--im-line); border-radius: var(--radius-media); color: #eef4f2; background: #0b1112; }
.im-prototype-launch > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .9s cubic-bezier(.2,.8,.2,1), filter .9s ease; }
.im-prototype-launch:hover > img { transform: scale(1.025); filter: saturate(.82); }
.im-launch-shade { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(4,9,10,.88) 0%, rgba(4,9,10,.64) 46%, rgba(4,9,10,.08) 78%), linear-gradient(to top, rgba(4,9,10,.66), transparent 52%); }
.im-launch-meta { position: absolute; top: clamp(24px, 3.5vw, 48px); left: clamp(24px, 4.5vw, 64px); right: clamp(24px, 4.5vw, 64px); display: flex; justify-content: space-between; gap: 24px; color: rgba(238,244,242,.72); font: 11px var(--font-mono); letter-spacing: .13em; }
.im-launch-meta b { font-weight: 400; }
.im-launch-copy { position: absolute; left: clamp(24px, 4.5vw, 64px); bottom: clamp(36px, 5.5vw, 80px); display: grid; max-width: 690px; }
.im-launch-logo { width: clamp(120px, 11vw, 140px); height: clamp(76px, 7vw, 90px); display: grid; place-items: center; margin-bottom: 28px; }
.im-launch-logo img { width: 100%; height: 100%; display: block; object-fit: contain; filter: invert(1); }
.im-launch-copy > strong { font: 400 clamp(42px, 6vw, 86px)/.98 var(--font-serif); letter-spacing: -.04em; text-wrap: balance; }
.im-launch-copy > small { max-width: 48ch; margin-top: 22px; color: rgba(238,244,242,.7); font-size: clamp(14px, 1.25vw, 18px); line-height: 1.6; }
.im-launch-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; width: fit-content; min-height: 52px; margin-top: 34px; padding: 0 20px; border-radius: 999px; background: #e6efed; color: #071012; font: 500 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; transition: background .25s ease, transform .25s ease; }
.im-prototype-launch:hover .im-launch-button { background: #b8dae2; transform: translateY(-2px); }
.im-launch-button em { font-style: normal; font-size: 18px; }
.im-launch-route { position: absolute; right: clamp(24px, 4.5vw, 64px); bottom: clamp(36px, 5.5vw, 80px); display: flex; align-items: center; gap: 10px; color: rgba(238,244,242,.7); font: 10px var(--font-mono); letter-spacing: .12em; }
.im-launch-route b { font-weight: 400; }
.im-launch-route i { width: clamp(18px, 2.8vw, 42px); height: 1px; background: rgba(184,218,226,.46); }

.im-decision-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: clamp(60px, 8vw, 108px); background: var(--im-line); }
.im-decision-grid article { min-height: 350px; padding: clamp(28px, 3.5vw, 52px); background: #070c0e; }
.mode-arch .im-decision-grid article { background: #eef0ec; }
.im-decision-grid article > span { color: var(--im-accent-strong); font: 13px var(--font-mono); }
.im-decision-grid h3 { margin: 72px 0 18px; color: var(--im-ink); font: 400 clamp(23px, 2.2vw, 34px)/1.1 var(--font-serif); }
.im-decision-grid p { color: var(--im-soft); font-size: 15px; line-height: 1.7; }

.im-spatial { background: linear-gradient(180deg, transparent, rgba(144, 185, 198, .045)); }
.im-spatial-grid { display: grid; grid-template-columns: minmax(280px, .68fr) minmax(0, 1.32fr); gap: clamp(56px, 8vw, 120px); align-items: start; }
.im-spatial-grid .im-section-copy { position: sticky; top: 120px; }
.im-spatial-grid .im-body { margin-top: 32px; }
.im-spatial-pair { display: grid; gap: 18px; }
.im-spatial-pair figure { margin: 0; overflow: hidden; border-radius: var(--radius-media); background: var(--im-panel); }
.im-spatial-pair img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.im-spatial-pair figcaption { display: flex; justify-content: space-between; gap: 24px; padding: 18px 20px 22px; color: var(--im-soft); font: 13px/1.5 var(--font-mono); }
.im-spatial-pair figcaption > span:first-child { color: var(--im-accent-strong); }

.im-strategy { background: linear-gradient(180deg, rgba(144, 185, 198, .045), transparent); }
.im-strategy-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr); gap: clamp(56px, 9vw, 140px); align-items: start; }
.im-strategy-grid .im-body { max-width: 760px; margin-top: 32px; }
.im-strategy-model { border-top: 1px solid var(--im-line); }
.im-strategy-model > div { padding: 24px 0 28px; border-bottom: 1px solid var(--im-line); }
.im-strategy-model span { color: var(--im-accent-strong); font: 11px var(--font-mono); letter-spacing: .1em; }
.im-strategy-model strong { display: block; margin-top: 26px; color: var(--im-ink); font: 400 clamp(25px, 2.6vw, 38px) var(--font-serif); }
.im-strategy-model small { display: block; max-width: 48ch; margin-top: 10px; color: var(--im-soft); font-size: 13px; line-height: 1.55; }
.im-reflection { display: grid; grid-template-columns: 220px 1fr; gap: 36px; margin-top: clamp(72px, 9vw, 120px); padding-top: 30px; padding-bottom: 30px; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-reflection > span { color: var(--im-accent-strong); font: 12px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.im-reflection p { max-width: 940px; color: var(--im-ink); font: 400 clamp(23px, 2.5vw, 36px)/1.35 var(--font-serif); }

.im-outcome-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); gap: clamp(56px, 9vw, 140px); }
.im-boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--im-line); }
.im-boundary-group { padding: 26px; background: #070c0e; }
.mode-arch .im-boundary-group { background: #eef0ec; }
.im-boundary-group h3 { min-height: 42px; color: var(--im-ink); font-size: 14px; font-weight: 500; line-height: 1.45; }
.im-boundary-group ul { margin: 22px 0 0; padding: 0; list-style: none; }
.im-boundary-group li { position: relative; padding: 12px 0 12px 20px; border-top: 1px solid var(--im-line); color: var(--im-soft); font-size: 14px; line-height: 1.45; }
.im-boundary-group li::before { content: ""; position: absolute; top: 19px; left: 2px; width: 6px; height: 6px; border-radius: 50%; background: var(--im-accent-strong); }
.im-boundary-concept li::before { border: 1px solid var(--im-accent-strong); background: transparent; }
.im-experience-outcomes { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr); gap: clamp(48px, 8vw, 120px); margin-top: clamp(88px, 11vw, 150px); padding-top: 48px; border-top: 1px solid var(--im-line); }
.im-experience-outcomes h2 { margin-top: 18px; color: var(--im-ink); font: 400 clamp(34px, 4.6vw, 66px)/1 var(--font-serif); }
.im-experience-outcomes ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--im-line); }
.im-experience-outcomes li { display: grid; grid-template-columns: 48px 150px 1fr; gap: 18px; align-items: baseline; padding: 24px 0; border-bottom: 1px solid var(--im-line); }
.im-experience-outcomes li > span { color: var(--im-accent-strong); font: 12px var(--font-mono); }
.im-experience-outcomes strong { color: var(--im-ink); font: 400 25px var(--font-serif); }
.im-experience-outcomes small { color: var(--im-soft); font-size: 14px; line-height: 1.55; }
.im-limit { display: grid; grid-template-columns: 180px 1fr; gap: 32px; margin-top: 72px; padding-top: 28px; padding-bottom: 28px; border-top: 1px solid var(--im-line); border-bottom: 1px solid var(--im-line); }
.im-limit span { color: var(--im-accent-strong); font: 13px var(--font-mono); letter-spacing: .1em; }
.im-limit p { max-width: 900px; color: var(--im-soft); font-size: 14px; line-height: 1.7; }
.im-credit { display: grid; grid-template-columns: .7fr 1fr 1.5fr; gap: 24px; margin-top: 72px; color: var(--im-soft); font: 12px/1.6 var(--font-mono); letter-spacing: .05em; }
.im-credit span:last-child { text-align: right; }

.im-reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s cubic-bezier(.2,.8,.2,1), transform .75s cubic-bezier(.2,.8,.2,1); }
.im-reveal.is-visible { opacity: 1; transform: none; }

.infinitas-app-case footer { border-top: 1px solid var(--im-line); background: #070c0e; color: rgba(220, 231, 231, .62); }
.infinitas-app-case.mode-arch footer { background: #eef0ec; color: rgba(32, 39, 41, .62); }
.infinitas-app-case .altn-project-nav-shell { color: var(--im-ink); }

@media (max-width: 1100px) {
  .im-hero-copy { display: block; }
  .im-hero-signature { display: none; }
}

@media (max-width: 980px) {
  .im-context-grid,
  .im-persona-intro,
  .im-research-head,
  .im-prototype-head,
  .im-spatial-grid,
  .im-strategy-grid,
  .im-experience-outcomes,
  .im-outcome-grid { grid-template-columns: 1fr; }
  .im-project-strip { grid-template-columns: 1fr 1fr; gap: 28px 0; }
  .im-project-strip dl:nth-child(3) { padding-left: 0; border-left: 0; }
  .im-relation-diagram { grid-template-columns: 1fr 48px 1fr 48px 1fr; }
  .im-loop-diagram { grid-template-columns: 1fr 52px 1.4fr 52px 1fr; }
  .im-persona-grid { grid-template-columns: 1fr; }
  .im-persona { padding-inline: 0; }
  .im-persona + .im-persona { border-top: 0; border-left: 0; }
  .im-journey-stages { grid-template-columns: 1fr; }
  .im-journey-stage + .im-journey-stage { border-top: 0; border-left: 0; }
  .im-decision-grid { grid-template-columns: 1fr 1fr; }
  .im-decision-grid article { min-height: 280px; }
  .im-decision-grid h3 { margin-top: 58px; }
  .im-spatial-grid .im-section-copy { position: static; }
  .im-experience-outcomes { gap: 44px; }
}

@media (max-width: 720px) {
  .im-hero { padding-top: 118px; }
  .im-hero-copy h1 { font-size: clamp(54px, 17vw, 82px); }
  .im-lede { font-size: 17px; }
  .im-origin-extension { grid-template-columns: 1fr; }
  .im-origin-extension > div + div { padding-left: 0; border-top: 1px solid rgba(220, 231, 231, .18); border-left: 0; }
  .im-actions { display: grid; }
  .im-action { width: 100%; }
  .im-project-strip { grid-template-columns: 1fr; padding-bottom: 54px; }
  .im-project-strip dl,
  .im-project-strip dl:nth-child(3) { padding: 0 0 20px; border-left: 0; border-bottom: 1px solid rgba(220, 231, 231, .12); }
  .im-section { padding: 82px 0; }
  .im-section-copy h2 { font-size: 39px; }
  .im-relation-diagram { grid-template-columns: 1fr; }
  .im-relation-node { min-height: 0; padding: 24px 0; }
  .im-relation-node strong { margin-top: 22px; }
  .im-relation-connector { min-height: 54px; padding: 0; flex-direction: column; justify-content: center; }
  .im-relation-connector i { flex: none; width: 1px; height: 30px; }
  .im-relation-connector b { transform: rotate(90deg); }
  .im-loop-diagram { grid-template-columns: 1fr; }
  .im-loop-entry,
  .im-loop-center { min-height: 0; text-align: left; border-right: 0; border-left: 0; border-radius: 0; }
  .im-loop-entry strong,
  .im-loop-center strong { margin-top: 22px; }
  .im-loop-path { min-height: 58px; }
  .im-loop-path i { top: 0; bottom: 0; left: 50%; right: auto; width: 1px; height: auto; }
  .im-loop-path b { right: calc(50% - 30px); }
  .im-loop-path b:nth-of-type(1) { top: 8px; }
  .im-loop-path b:nth-of-type(2) { bottom: 8px; }
  .im-loop-path-reverse b { right: auto; left: calc(50% - 30px); }
  .im-persona-intro { margin-top: 82px; }
  .im-persona-grid { margin-top: 36px; }
  .im-persona h3 { font-size: 38px; }
  .im-persona dl > div { grid-template-columns: 1fr; gap: 8px; }
  .im-research-findings { grid-template-columns: 1fr; }
  .im-research-findings article { min-height: 0; }
  .im-research-findings article + article { border-top: 1px solid var(--im-line); border-left: 0; }
  .im-research-findings strong { margin-top: 34px; }
  .im-next-iteration,
  .im-reflection { grid-template-columns: 1fr; gap: 18px; }
  .im-identity-grid,
  .im-identity-construction { grid-template-columns: 1fr; }
  .im-identity-copy { padding-top: 0; }
  .im-identity-copy h2 { font-size: 39px; }
  .im-identity-facts { margin-top: 38px; }
  .im-identity-facts span { min-height: 106px; }
  .im-identity-facts em { font-size: 15px; }
  .im-identity-construction figcaption { display: grid; gap: 6px; }
  .im-stage-touchpoints { grid-template-columns: 1fr; }
  .im-stage-touchpoints li { min-height: 0; padding: 24px; border-top: 1px solid var(--im-line); border-left: 0; }
  .im-stage-touchpoints li:first-child { border-top: 0; }
  .im-stage-touchpoints strong { margin-top: 18px; }
  .im-stage-touchpoints small { max-width: none; }
  .im-responsive-proof { grid-template-columns: 1fr; gap: 48px; margin-top: 46px; }
  .im-hero-proof { margin-top: 0; }
  .im-responsive-desktop .im-responsive-surface { aspect-ratio: 4 / 3; }
  .im-responsive-desktop .im-responsive-surface img { object-position: top left; }
  .im-responsive-mobile,
  .im-hero-proof .im-responsive-mobile { width: min(82%, 280px); justify-self: center; margin-top: 0; }
  .im-responsive-preview figcaption { display: grid; gap: 5px; }
  .im-responsive-preview figcaption span:last-child { text-align: left; }
  .im-prototype-launch { min-height: 580px; margin-top: 54px; border-radius: 20px; }
  .im-prototype-launch > img { object-position: 64% center; }
  .im-launch-shade { background: linear-gradient(to top, rgba(4,9,10,.92) 0%, rgba(4,9,10,.56) 62%, rgba(4,9,10,.12)); }
  .im-launch-meta { display: none; }
  .im-launch-copy { right: 24px; bottom: 28px; }
  .im-launch-logo { width: 108px; height: 70px; margin-bottom: 18px; }
  .im-launch-copy > strong { font-size: 44px; }
  .im-launch-button { width: 100%; }
  .im-launch-route { display: none; }
  .im-decision-grid { grid-template-columns: 1fr; padding-inline: 0; }
  .im-decision-grid article { padding: 32px 24px; }
  .im-spatial-pair figure { border-radius: 20px; }
  .im-spatial-pair figcaption { display: grid; gap: 8px; }
  .im-boundary-grid,
  .im-limit { grid-template-columns: 1fr; }
  .im-experience-outcomes li { grid-template-columns: 40px 1fr; }
  .im-experience-outcomes small { grid-column: 2; }
  .im-credit { grid-template-columns: 1fr; }
  .im-credit span:last-child { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .im-reveal { opacity: 1; transform: none; transition: none; }
}