/* simate extends Quiet Glass: neutral surfaces, editorial spacing, restrained glass. */
:root { --page-width: 1280px; --muted: #66686a; --accent: #bdcf97; --section-paper: #f6f7f5; --motion-ease: cubic-bezier(.2,.8,.2,1); }
:root[data-theme="dark"] { --paper: #141615; --ink: #f1f2ee; --muted: #a4a8a2; --line: #343833; --placeholder: #232723; --section-paper: #1b1e1b; --accent: #c4d991; }
body { font-size: 16px; line-height: 1.65; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: default; }
button, input { font-family: inherit; }
button { touch-action: manipulation; }
svg { display: block; flex-shrink: 0; }
img { display: block; max-width: 100%; }
p, h1, h2, h3 { margin: 0; }
a, button { transition: color .2s, background-color .2s, opacity .2s, border-color .2s; }
.page-width { width: calc(100% - 112px); max-width: var(--page-width); margin-inline: auto; }
.showcase-header { z-index: 20; }
.showcase-header .site-header-inner { width: calc(100% - 112px); min-height: 88px; gap: 24px; }
.showcase-header::after { left: max(56px, calc((100vw - var(--page-width)) / 2)); right: max(56px, calc((100vw - var(--page-width)) / 2)); }
.simate-wordmark { display: inline-flex; align-items: center; white-space: nowrap; }
.simate-wordmark .simate-brand-logo { width: 66px; height: 66px; flex-basis: 66px; }
.showcase-nav { display: flex; gap: 28px; margin-left: 28px; font-size: 14px; }
.showcase-nav a { padding: 14px 0; color: var(--muted); white-space: nowrap; }
.showcase-nav a:hover, .showcase-nav a[aria-current] { color: var(--ink); }
.header-actions { display: flex; gap: 23px; align-items: center; }
.icon-button { width: 44px; height: 44px; display: inline-grid; place-items: center; border: 1px solid transparent; padding: 0; background: none; border-radius: 50%; font-size: 22px; }
.icon-button:hover { background: var(--placeholder); }
.showcase-header .header-cta { display: flex; align-items: center; gap: 28px; border: 0; border-radius: 30px; padding: 10px 20px; background: var(--ink); color: var(--paper); font: inherit; font-size: 14px; cursor: pointer; }
.header-cta:hover { opacity: .8; }
.header-cta span { font-size: 18px; }
.hero { padding-top: 70px; }
.hero-heading { display: grid; grid-template-columns: 1.2fr 1fr; align-items: end; gap: 60px; padding-bottom: 48px; }
.eyebrow { display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 500; letter-spacing: .12em; line-height: 1.6; }
.hero h1 { margin-top: 22px; font-size: clamp(44px, 5.3vw, 76px); letter-spacing: -.065em; line-height: 1.21; font-weight: 550; }
.title-period { color: #8f948b; }
.hero-intro { justify-self: end; padding: 0 36px 5px 0; }
.hero-intro > p { color: var(--muted); font-size: 17px; line-height: 1.9; }
.text-link { display: inline-flex; gap: 42px; align-items: center; font-size: 14px; padding-block: 10px; border-bottom: 1px solid var(--line); }
.text-link:hover { border-color: var(--ink); }
.text-link > span { font-size: 22px; line-height: 1; transition: transform .2s; }
.text-link:hover > span { transform: translate(2px, -2px); }
.hero-intro .text-link { margin-top: 22px; }
.home-entry-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 36px; }
.home-entry-card { display: flex; flex-direction: column; min-width: 0; min-height: 224px; padding: 25px 27px 23px; border: 1px solid var(--line); background: var(--section-paper); }
.home-entry-card:hover { border-color: var(--ink); }
.home-entry-kicker { font-size: 12px; letter-spacing: .13em; color: var(--muted); }
.home-entry-title { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 24px; font-size: clamp(23px, 2.5vw, 32px); font-weight: 550; letter-spacing: -.04em; line-height: 1.2; }
.home-entry-title > span { font-size: 22px; font-weight: 400; transition: transform .2s; }
.home-entry-card:hover .home-entry-title > span { transform: translate(2px, -2px); }
.home-entry-copy { max-width: 32ch; margin-top: 13px; color: var(--muted); font-size: 16px; line-height: 1.55; }
.home-entry-link { margin-top: auto; padding-top: 22px; font-size: 14px; font-weight: 500; }
.hero-stage { position: relative; aspect-ratio: 2.06; overflow: hidden; background: #383a34; isolation: isolate; color: white; }
.hero-stage > video { width: 100%; height: 100%; display: block; object-fit: cover; object-position: 50% 54%; }
.hero-stage::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(180deg,rgba(0,0,0,.23), transparent 33%,rgba(0,0,0,.08) 45%,rgba(0,0,0,.62)); }
.stage-bottom { position: absolute; left: 36px; right: 36px; display: flex; justify-content: space-between; z-index: 2; }
.stage-bottom { bottom: 32px; align-items: flex-end; gap: 20px; }
.stage-bottom h2 { font-size: clamp(23px,2.5vw,34px); font-weight: 450; letter-spacing: -.035em; margin-top: 0; line-height: 1.4; }
.stage-watch { display: inline-flex; gap: 22px; margin-top: 15px; padding: 0; border: 0; color: white; background: none; font-size: 14px; min-height: 32px; align-items: center; }
.stage-watch:hover { opacity: .7; }
.stage-watch > span { font-size: 20px; }
.stage-toggle { display: inline-flex; align-items: center; gap: 8px; min-width: 88px; height: 44px; border: 1px solid #ffffff55; border-radius: 32px; padding-inline: 14px; font-size: 13px; background: #00000022; color: white; backdrop-filter: blur(12px); }
.stage-toggle:hover { background: #ffffff25; }
.stage-toggle svg { width: 16px; height: 16px; }
.hero-progress { position: absolute; z-index: 3; bottom: 0; left: 0; right: 0; height: 2px; background: #ffffff20; }
.hero-progress span { display: block; width: 100%; height: 100%; background: #e6eddb; transform: scaleX(0); transform-origin: left; }
.home-hero-heading { padding-bottom: 54px; }
.home-hero-intro { max-width: 560px; }
.home-hero-intro .hero-statement { max-width: 47ch; color: var(--ink); font-size: clamp(17px, 1.55vw, 21px); line-height: 1.7; letter-spacing: -.018em; text-wrap: pretty; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 11px 32px; margin-top: 23px; }
.home-hero-intro .hero-actions .text-link { margin-top: 0; }
.hero-secondary-link { padding-block: 10px; color: var(--muted); font-size: 14px; }
.hero-secondary-link:hover { color: var(--ink); }
.stage-topline { position: absolute; top: 26px; left: 36px; right: 36px; z-index: 2; display: flex; justify-content: space-between; gap: 20px; color: #ffffffe0; font-size: 10px; font-weight: 550; letter-spacing: .14em; }

.home-section-index { color: var(--muted); font-size: 11px; font-weight: 550; letter-spacing: .15em; line-height: 1.5; }
.home-why { padding-block: 96px 102px; }
.home-why-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr); gap: clamp(48px, 8vw, 120px); align-items: start; margin-top: 30px; }
.home-why h2, .home-section-heading h2, .home-system h2, .home-close h2 { font-size: clamp(40px, 4.75vw, 66px); font-weight: 500; line-height: 1.08; letter-spacing: -.058em; text-wrap: balance; }
.home-why h2 span { color: var(--muted); }
.home-why-copy { max-width: 570px; padding-top: 3px; }
.home-why-copy p { font-size: 17px; line-height: 1.9; text-wrap: pretty; }
.home-why-copy p + p { margin-top: 21px; color: var(--muted); }

.home-products { padding-block: 90px 94px; border-block: 1px solid var(--line); background: var(--section-paper); }
.home-section-heading { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: clamp(48px, 8vw, 120px); align-items: end; }
.home-section-heading h2 { margin-top: 22px; }
.home-section-heading > p { max-width: 470px; padding-bottom: 7px; color: var(--muted); font-size: 17px; line-height: 1.85; text-wrap: pretty; }
.home-product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 60px; border-block: 1px solid var(--line); }
.home-product-card { min-width: 0; border-right: 1px solid var(--line); }
.home-product-card:last-child { border-right: 0; }
.home-product-card--sinfra { grid-column: 1 / -1; border-right: 0; border-bottom: 1px solid var(--line); }
.home-product-link { display: flex; min-height: 400px; height: 100%; flex-direction: column; padding: 27px 28px 28px; transition: background-color .25s var(--motion-ease); }
.home-product-link:hover { background: color-mix(in srgb, var(--paper) 64%, transparent); }
.home-product-link--feature { display: grid; min-height: 510px; grid-template-columns: minmax(280px, .72fr) minmax(0, 1.28fr); gap: clamp(42px, 6vw, 88px); padding: 28px; }
.home-product-feature-copy { display: flex; min-width: 0; flex-direction: column; }
.home-product-link--feature .home-product-copy { padding-block: 76px 52px; }
.home-product-link--feature .home-product-copy h3 { font-size: clamp(46px, 5.5vw, 76px); }
.home-product-link--feature .home-product-copy p { max-width: 29ch; font-size: 17px; }
.home-product-topline { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; color: var(--muted); font-size: 10px; font-weight: 550; letter-spacing: .13em; }
.home-status { display: inline-flex; align-items: center; min-height: 28px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); font-size: 9px; line-height: 1; letter-spacing: .11em; }
.home-product-copy { margin-top: auto; padding-block: 82px 54px; }
.home-product-copy h3 { font-size: clamp(34px, 3.5vw, 49px); font-weight: 500; line-height: 1; letter-spacing: -.055em; }
.home-product-copy p { max-width: 31ch; margin-top: 20px; color: var(--muted); font-size: 16px; line-height: 1.7; text-wrap: pretty; }
.home-product-footer { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 19px; border-top: 1px solid var(--line); font-size: 14px; }
.home-product-footer > span:last-child { font-size: 21px; transition: transform .2s var(--motion-ease); }
.home-product-link:hover .home-product-footer > span:last-child { transform: translate(2px, -2px); }
.home-sinfra-visual { display: grid; min-width: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-content: center; }
.home-sinfra-visual figure { min-width: 0; margin: 0; }
.home-sinfra-frame { position: relative; width: 100%; min-height: 0; aspect-ratio: 4 / 3; overflow: hidden; }
.home-sinfra-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); transition: filter .35s var(--motion-ease), transform .45s var(--motion-ease); }
.home-product-link--feature:hover .home-sinfra-visual img { filter: saturate(1); transform: scale(1.008); }
.home-sinfra-visual figcaption { display: flex; gap: 10px; margin-top: 10px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.home-sinfra-visual figcaption span { color: var(--ink); font-variant-numeric: tabular-nums; }
.home-sinfra-visual > p { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 8px; margin-top: 8px; color: var(--muted); font-size: 9px; font-weight: 550; letter-spacing: .11em; }
.home-sinfra-visual > p i { color: var(--muted); font-size: 15px; font-weight: 700; font-style: normal; line-height: .6; }
.home-sinfra-flow--mobile { display: none !important; }
.home-product-link--engine { min-height: 450px; }
.home-product-link--engine .home-product-copy { padding-block: clamp(96px, 11vw, 152px) 58px; }
.home-product-signature { margin-top: 42px; color: var(--muted); font-size: clamp(23px, 2.45vw, 34px); line-height: 1.35; letter-spacing: -.035em; text-align: right; }

.home-system { display: grid; grid-template-columns: minmax(0, .86fr) minmax(480px, 1.14fr); gap: clamp(56px, 9vw, 136px); align-items: start; padding-block: 96px 102px; }
.home-system-copy { position: sticky; top: calc(var(--site-header-height) + 36px); }
.home-system h2 { margin-top: 22px; }
.home-system-copy > p:not(.home-section-index) { max-width: 45ch; margin-top: 29px; color: var(--muted); font-size: 16px; line-height: 1.85; text-wrap: pretty; }
.home-system-copy .text-link { margin-top: 25px; }
.home-system-flow { margin: 0; padding: 0; border-bottom: 1px solid var(--line); list-style: none; }
.home-system-flow li { display: grid; grid-template-columns: 56px 1fr; gap: 22px; align-items: start; padding: 26px 0 30px; border-top: 1px solid var(--line); }
.home-system-number { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; letter-spacing: .1em; }
.home-system-flow strong, .home-system-flow div > span { display: block; }
.home-system-flow strong { font-size: clamp(23px, 2.25vw, 31px); font-weight: 500; line-height: 1.22; letter-spacing: -.035em; }
.home-system-flow div > span { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.home-system-return { color: var(--muted); }
.home-system-return strong { color: var(--ink); }

.home-evidence { padding-block: 104px 112px; border-block: 1px solid var(--line); background: var(--section-paper); }
.home-evidence-heading { align-items: end; }
.home-evidence-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, .85fr); gap: 16px; margin-top: 60px; }
.home-evidence-feature { grid-row: 1 / 3; display: flex; min-width: 0; flex-direction: column; border: 1px solid var(--line); background: var(--paper); }
.home-evidence-media { position: relative; display: block; width: 100%; padding: 0; border: 0; overflow: hidden; background: #292c28; aspect-ratio: 16 / 9; }
.home-evidence-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s var(--motion-ease); }
.home-evidence-media:hover img { transform: scale(1.018); }
.home-evidence-copy { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 28px; padding: 27px 28px 30px; }
.home-evidence-copy > span, .home-evidence-card-top { color: var(--muted); font-size: 10px; font-weight: 550; letter-spacing: .13em; }
.home-evidence-copy h3 { font-size: clamp(28px, 3vw, 42px); font-weight: 500; line-height: 1.08; letter-spacing: -.045em; }
.home-evidence-copy p { margin-top: 14px; color: var(--muted); font-size: 15px; line-height: 1.7; text-wrap: pretty; }
.home-evidence-action { display: inline-flex; min-height: 44px; align-items: center; gap: 22px; margin-top: 17px; padding: 0; border: 0; border-bottom: 1px solid var(--line); background: none; font-size: 13px; }
.home-evidence-action:hover { border-color: var(--ink); }
.home-evidence-card { min-width: 0; border: 1px solid var(--line); background: var(--paper); }
.home-evidence-card > a { display: flex; min-height: 100%; flex-direction: column; padding: 25px 26px 27px; }
.home-evidence-card-top { display: flex; justify-content: space-between; gap: 18px; }
.home-evidence-card-top > span:last-child { color: var(--ink); font-size: 18px; transition: transform .2s var(--motion-ease); }
.home-evidence-card:hover .home-evidence-card-top > span:last-child { transform: translate(2px, -2px); }
.home-evidence-card-body { margin-top: auto; padding-block: 47px 38px; }
.home-evidence-mark { color: var(--muted); font-size: 14px; letter-spacing: .02em; }
.home-evidence-card h3 { max-width: 16ch; margin-top: 8px; font-size: clamp(25px, 2.35vw, 33px); font-weight: 500; line-height: 1.13; letter-spacing: -.045em; }
.home-evidence-card-body > p:last-child { max-width: 34ch; margin-top: 15px; color: var(--muted); font-size: 14px; line-height: 1.7; text-wrap: pretty; }
.home-evidence-card-link { padding-top: 17px; border-top: 1px solid var(--line); font-size: 13px; }
.home-evidence-card--dark { background: #1c1e1d; color: #f3f4f0; }
.home-evidence-card--dark .home-evidence-card-top, .home-evidence-card--dark .home-evidence-card-body > p:last-child { color: #a9ada7; }
.home-evidence-card--dark .home-evidence-card-top > span:last-child { color: #f3f4f0; }
.home-evidence-card--dark .home-evidence-card-link { border-color: #454a45; }
.home-evidence-lineage { display: flex; align-items: center; gap: 0; margin-top: 42px; padding-inline: 4px; }
.home-evidence-lineage span { position: relative; width: 10px; height: 10px; flex: 0 0 10px; border: 1px solid #d5ded0; border-radius: 50%; background: #1c1e1d; }
.home-evidence-lineage span + span { margin-left: clamp(25px, 3vw, 45px); }
.home-evidence-lineage span + span::before { content: ''; position: absolute; top: 4px; right: 9px; width: clamp(26px, 3.2vw, 47px); height: 1px; background: #697068; }
.home-evidence-lineage span:nth-child(3), .home-evidence-lineage span:nth-child(5) { background: var(--accent); border-color: var(--accent); }
.home-evidence-more { display: flex; justify-content: space-between; align-items: center; gap: 32px; margin-top: 34px; }
.home-evidence-more > p { color: var(--muted); font-size: 14px; }

.home-close { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr); gap: clamp(48px, 8vw, 120px); align-items: end; padding-block: 122px 126px; }
.home-close h2 { margin-top: 22px; }
.home-close-copy { padding-bottom: 7px; }
.home-close-copy > p { max-width: 42ch; color: var(--muted); font-size: 17px; line-height: 1.85; text-wrap: pretty; }
.home-close-links { display: flex; flex-wrap: wrap; gap: 10px 36px; margin-top: 25px; }

@media (max-width: 1050px) {
  .home-product-link { padding-inline: 22px; }
  .home-product-link--feature { min-height: 470px; grid-template-columns: minmax(240px, .72fr) minmax(0, 1.28fr); gap: 40px; }
  .home-product-link--engine { min-height: 410px; }
  .home-product-copy { padding-block: 62px 45px; }
  .home-system { grid-template-columns: minmax(0, .78fr) minmax(420px, 1.22fr); gap: 64px; }
  .home-evidence-grid { grid-template-columns: minmax(0, 1.4fr) minmax(280px, .8fr); }
  .home-evidence-copy { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .home-why-grid, .home-section-heading, .home-system, .home-close { grid-template-columns: 1fr; gap: 30px; }
  .home-why-copy, .home-section-heading > p, .home-close-copy { max-width: 620px; }
  .home-product-grid { grid-template-columns: 1fr; }
  .home-product-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .home-product-card:last-child { border-bottom: 0; }
  .home-product-link { min-height: 0; }
  .home-product-link--feature { grid-template-columns: 1fr; gap: 30px; }
  .home-product-link--feature .home-product-copy { padding-block: 54px 45px; }
  .home-sinfra-frame { aspect-ratio: 16 / 9; }
  .home-product-topline { align-items: center; flex-direction: row; }
  .home-product-copy { padding-block: 55px 46px; }
  .home-product-link--engine { min-height: 0; }
  .home-product-signature { text-align: left; }
  .home-system-copy { position: static; }
  .home-evidence-grid { grid-template-columns: 1fr 1fr; }
  .home-evidence-feature { grid-column: 1 / -1; grid-row: auto; }
}

@media (max-width: 680px) {
  .home-hero-heading { padding-bottom: 34px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 4px; margin-top: 17px; }
  .stage-topline { top: 17px; left: 20px; right: 20px; font-size: 9px; }
  .home-why { padding-block: 72px 78px; }
  .home-why-grid { margin-top: 22px; }
  .home-why h2, .home-section-heading h2, .home-system h2, .home-close h2 { font-size: clamp(36px, 10vw, 48px); }
  .home-why-copy p, .home-section-heading > p, .home-close-copy > p { font-size: 16px; }
  .home-products, .home-evidence { padding-block: 70px 74px; }
  .home-section-heading h2 { margin-top: 17px; }
  .home-product-grid, .home-evidence-grid { margin-top: 39px; }
  .home-product-link { padding: 22px; }
  .home-product-topline { align-items: flex-start; flex-direction: column; }
  .home-product-link--feature .home-product-copy { padding-block: 42px 35px; }
  .home-product-link--feature .home-product-copy h3 { font-size: 47px; }
  .home-sinfra-visual { grid-template-columns: 1fr; gap: 20px; }
  .home-sinfra-visual figcaption { font-size: 10px; }
  .home-sinfra-visual > p { grid-column: 1; margin-top: 0; }
  .home-sinfra-flow--full { display: none !important; }
  .home-sinfra-flow--mobile { display: flex !important; justify-content: flex-start !important; gap: 12px !important; padding-top: 16px; border-top: 1px solid var(--line); font-size: 9px !important; white-space: nowrap; }
  .home-product-copy { padding-block: 46px 38px; }
  .home-product-link--engine .home-product-copy { padding-block: 72px 42px; }
  .home-product-copy h3 { font-size: 39px; }
  .home-product-signature { margin-top: 31px; font-size: 25px; }
  .home-system { padding-block: 78px 82px; }
  .home-system-copy > p:not(.home-section-index) { margin-top: 22px; }
  .home-system-flow { margin-top: 12px; }
  .home-system-flow li { grid-template-columns: 42px 1fr; gap: 10px; padding-block: 22px 24px; }
  .home-system-flow strong { font-size: 24px; }
  .home-evidence-grid { grid-template-columns: 1fr; }
  .home-evidence-copy { padding: 22px; }
  .home-evidence-copy h3 { font-size: 31px; }
  .home-evidence-card > a { padding: 22px; }
  .home-evidence-card-body { padding-block: 45px 34px; }
  .home-evidence-more { align-items: flex-start; flex-direction: column; gap: 8px; margin-top: 27px; }
  .home-close { padding-block: 78px 82px; }
  .home-close-links { align-items: flex-start; flex-direction: column; gap: 4px; }
}

.demos-section { padding-block: 104px 96px; scroll-margin-top: 22px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; }
.section-heading h2 { font-size: clamp(30px,3.2vw,44px); line-height: 1.4; font-weight: 500; letter-spacing: -.055em; margin-top: 0; }
.section-heading > p { font-size: 16px; line-height: 1.9; color: var(--muted); padding-bottom: 4px; }
.demo-toolbar { scroll-margin-top: 16px; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-block: 39px 28px; padding-block: 0 17px; border-bottom: 1px solid var(--line); }
.demo-filters { display: flex; flex-wrap: wrap; gap: 9px; }
.demo-filters button { display: flex; align-items: center; gap: 7px; padding: 8px 15px; border: 1px solid transparent; border-radius: 24px; color: var(--muted); background: none; font-size: 14px; min-height: 42px; white-space: nowrap; }
.demo-filters button:hover { color: var(--ink); background: var(--placeholder); }
.demo-filters button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.demo-filters button > span { opacity: .6; font-size: 12px; }
.demo-grid { display: grid; --demo-columns: 3; grid-template-columns: repeat(var(--demo-columns),minmax(0,1fr)); gap: 34px 26px; }
.demo-card { min-width: 0; }
.demo-image { position: relative; display: block; width: 100%; padding: 0; border: 0; background: var(--placeholder); aspect-ratio: 16/9; overflow: hidden; }
.demo-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s var(--motion-ease); }
.demo-image:hover img { transform: scale(1.025); }
.card-play { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; position: absolute; left: 16px; bottom: 16px; border: 1px solid #ffffff70; background: #252a2599; color: white; backdrop-filter: blur(8px); transition: background .2s; }
.card-play svg { width: 17px; height: 17px; }
.demo-image:hover .card-play { background: #252a25dd; }
.demo-duration { position: absolute; right: 12px; bottom: 14px; font-size: 12px; font-variant-numeric: tabular-nums; color: white; background: #181818aa; padding: 2px 6px; border-radius: 3px; }
.demo-title { display: flex; align-items: center; justify-content: space-between; gap: 15px; width: 100%; border: 0; background: none; text-align: left; padding: 12px 0 2px; font-size: 20px; font-weight: 500; letter-spacing: -.02em; min-height: 40px; }
.demo-title-arrow { font-size: 22px; font-weight: 400; color: var(--muted); transition: transform .2s; }
.demo-title:hover .demo-title-arrow { transform: translate(2px,-2px); color: var(--ink); }
.demo-card > p { font-size: 14px; line-height: 1.7; color: var(--muted); margin-top: 1px; }
.outline-button { display: inline-flex; justify-content: center; align-items: center; gap: 36px; border: 1px solid var(--line); background: transparent; border-radius: 30px; padding: 12px 24px; font-size: 14px; min-height: 46px; }
.outline-button:hover { border-color: var(--ink); background: var(--placeholder); }
.research-section { background: var(--section-paper); border-block: 1px solid var(--line); padding-block: 82px 88px; scroll-margin-top: 0; }
.research-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 52px; margin-top: 48px; }
.research-grid article { border-top: 1px solid var(--line); padding-top: 21px; }
.research-grid h3 { font-size: 24px; font-weight: 500; margin-top: 0; letter-spacing: -.025em; }
.research-grid p { font-size: 16px; color: var(--muted); line-height: 1.75; margin-top: 14px; }
/* The research route reuses the original template's project grid and type scale. */
.research-detail { padding-top: 32px; }
.project-back { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; min-width: 76px; margin-bottom: 20px; color: var(--muted); font-size: 14px; }
.project-back svg { width: 18px; height: 18px; transform: rotate(180deg); }
.project-back:hover { color: var(--ink); }
.project-back:hover span { text-decoration: underline; text-underline-offset: 4px; }
.research-page .project-item h2 { font-size: 20px; font-weight: 500; margin: 0 0 9px; letter-spacing: -.4px; line-height: 1.4; }
.sipai-preview img, .roboscientist-preview img, .sinfra-preview img { object-fit: cover; }
/* Framework details stay flat, with the same type and fine rules as research. */
.sipai-overview .post-description { max-width: 640px; font-size: 17px; }
.sipai-demo-jump { margin-top: 20px; }
.post .sipai-architecture { margin: 0 0 48px; }
.sipai-architecture picture { display: block; }
.sipai-architecture img { display: block; width: 100%; height: auto; aspect-ratio: 5 / 3; }
.sipai-architecture figcaption { max-width: 760px; font-size: 14px; line-height: 1.75; margin-top: 16px; }
.sipai-feature-video { margin: 0; overflow: hidden; background: #0c0d0d; }
.sipai-feature-video video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #0c0d0d; }
.sipai-demos { margin-top: 96px; padding-top: 72px; border-top: 1px solid var(--line); scroll-margin-top: calc(var(--site-header-height) + 28px); }
.sipai-demos .section-heading > div { min-width: 0; }
.sipai-section-index { margin: 0 0 16px; color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: .16em; }
.sipai-demos .section-heading > p { max-width: 520px; }
.product-horizon { margin-top: 112px; padding-top: 22px; border-top: 1px solid var(--line); }
.product-horizon__meta { display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--muted); font-size: 10px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.product-horizon__status { display: inline-flex; align-items: center; gap: 9px; }
.product-horizon__status i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .65; }
.product-horizon__layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(440px, 1.1fr); gap: clamp(56px, 9vw, 128px); margin-top: 64px; }
.product-horizon__intro h2 { margin: 0; font-size: clamp(38px, 4.3vw, 60px); font-weight: 500; line-height: 1.08; letter-spacing: -.058em; text-wrap: balance; }
.product-horizon__intro p { max-width: 420px; margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; text-wrap: pretty; }
.product-horizon__list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.product-horizon__list li { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; align-items: center; gap: 20px; min-height: 94px; border-bottom: 1px solid var(--line); }
.product-horizon__list span { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.product-horizon__list strong { font-size: clamp(19px, 2vw, 25px); font-weight: 500; letter-spacing: -.035em; }
.product-horizon__list em { color: var(--muted); font-size: 10px; font-style: normal; letter-spacing: .1em; text-transform: uppercase; }
/* Autoresearch keeps the same reading rhythm, with the film as the main surface. */
.roboscientist-overview .post-description { max-width: 680px; font-size: 17px; }
.post .research-film { margin: 0 0 56px; }
.research-film-stage { position: relative; aspect-ratio: 16 / 9; background: #10232e; }
.research-film video { display: block; width: 100%; height: 100%; object-fit: contain; }
.research-film-play { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; width: 100%; padding: 24px; border: 0; background: #06131b30; color: white; font-size: 14px; }
.research-film-play[hidden] { display: none; }
.research-film-play-icon { display: grid; place-items: center; width: 64px; height: 64px; border: 1px solid #ffffff80; border-radius: 50%; background: #12232dcc; }
.research-film-play-icon svg { width: 22px; height: 22px; margin-left: 3px; }
.research-film-play > span:last-child { display: flex; gap: 18px; align-items: center; padding: 5px 12px; background: #12232dcc; border-radius: 20px; }
.research-film-duration { color: #d1dce1; font-variant-numeric: tabular-nums; }
.research-film-play:hover { background: #06131b48; }
.research-film-play:focus-visible { outline: 2px solid white; outline-offset: -6px; }
.research-film figcaption { font-size: 14px; line-height: 1.75; margin-top: 16px; }
.research-film-error { margin-top: 16px; color: var(--muted); font-size: 14px; }
.research-film-error a { text-decoration: underline; text-underline-offset: 4px; }
.roboscientist-loop { display: grid; grid-template-columns: 1fr 1.4fr; align-items: center; gap: 64px; border-top: 1px solid var(--line); padding-top: 36px; }
.roboscientist-loop-copy h2 { font-size: 24px; font-weight: 500; line-height: 1.4; letter-spacing: -.025em; }
.roboscientist-loop-copy p { max-width: 38ch; margin-top: 16px; font-size: 16px; line-height: 1.75; color: var(--muted); }
.roboscientist-loop-copy .text-link { margin-top: 18px; }
.roboscientist-loop-copy .text-link + .text-link { margin-top: 8px; }
.post .roboscientist-loop-figure { margin: 0; min-width: 0; }
.roboscientist-loop-diagram { display: block; width: 100%; height: auto; font-family: inherit; }
.roboscientist-loop-diagram--mobile { display: none; }
.loop-agent { fill: var(--ink); }
.loop-agent-label { fill: var(--paper); font-size: 20px; font-weight: 500; letter-spacing: -.3px; }
.loop-path { color: var(--muted); }
.loop-node { fill: var(--paper); stroke: var(--line); stroke-width: 1.3; }
.loop-label { fill: var(--ink); font-size: 18px; }
.loop-result { font-size: 19px; font-weight: 500; }
.loop-note { fill: var(--muted); font-size: 15px; }
/* Sinfra architecture uses separate desktop and mobile drawings for legible labels. */
.sinfra-overview .post-description { max-width: 680px; font-size: 17px; }
.post .sinfra-architecture { margin: 0 0 48px; }
.sinfra-diagram { --infra-surface: #f5f5f8; --infra-card: #fff; --infra-node: #f7f7f9; --infra-ink: #242528; --infra-muted: #5e6169; --infra-flow: #999da6; --infra-base: #262628; display: block; width: 100%; height: auto; color: #e8e9ed; font-family: inherit; }
:root[data-theme="dark"] .sinfra-diagram { --infra-surface: #25262b; --infra-card: #1c1d21; --infra-node: #2c2d32; --infra-ink: #f3f3f5; --infra-muted: #b9bbc2; --infra-flow: #9b9da7; --infra-base: #111215; color: #494b52; }
.sinfra-diagram--mobile { display: none; }
.sinfra-diagram-card { fill: var(--infra-card); stroke: currentColor; stroke-width: 1.5; }
.sinfra-diagram-surface { fill: var(--infra-surface); }
.sinfra-diagram-node { fill: var(--infra-node); stroke: currentColor; stroke-width: 1; }
.sinfra-diagram-title { fill: var(--infra-ink); font-size: 27px; font-weight: 600; letter-spacing: -.04em; }
.sinfra-diagram-topics { fill: var(--infra-ink); font-size: 21px; font-weight: 600; letter-spacing: -.025em; }
.sinfra-diagram-detail { fill: var(--infra-muted); font-size: 16px; }
.sinfra-diagram-step { fill: var(--infra-muted); font-size: 13px; letter-spacing: .09em; }
.sinfra-diagram-heading { fill: var(--infra-ink); font-size: 21px; font-weight: 600; letter-spacing: -.025em; }
.sinfra-diagram-small { fill: var(--infra-muted); font-size: 15px; }
.sinfra-diagram-flow, .sinfra-diagram-arrow { fill: none; stroke: var(--infra-flow); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.sinfra-diagram-feedback { fill: var(--infra-muted); font-size: 12px; font-weight: 500; letter-spacing: .12em; }
.sinfra-diagram-platform { fill: var(--infra-base); }
.sinfra-diagram-base { fill: #fff; font-size: 25px; font-weight: 600; letter-spacing: -.035em; }
.sinfra-diagram-base-detail { fill: #d4d4d8; font-size: 16px; }
.sinfra-diagram-eyebrow { fill: var(--infra-muted); font-size: 12px; font-weight: 500; letter-spacing: .18em; }
.sinfra-diagram-divider { fill: none; stroke: currentColor; stroke-width: 1; }
.sinfra-diagram-runtime { fill: var(--infra-ink); font-size: 18px; font-weight: 500; }
.sinfra-diagram--mobile .sinfra-diagram-title { font-size: 21px; }
.sinfra-diagram--mobile .sinfra-diagram-detail { font-size: 15px; }
.sinfra-diagram--mobile .sinfra-diagram-topics { font-size: 14px; }
.sinfra-diagram--mobile .sinfra-diagram-heading { font-size: 20px; }
.sinfra-diagram--mobile .sinfra-diagram-small { font-size: 15px; }
.sinfra-diagram--mobile .sinfra-diagram-base { font-size: 22px; }
.sinfra-diagram--mobile .sinfra-diagram-base-detail { font-size: 14px; }
.sinfra-diagram--mobile .sinfra-diagram-runtime { font-size: 15px; }
.sinfra-diagram--mobile .sinfra-diagram-feedback { font-size: 10px; }
.sinfra-architecture figcaption { font-size: 14px; line-height: 1.75; margin-top: 16px; }
.sinfra-capabilities { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
.sinfra-capabilities > section { min-width: 0; border-top: 1px solid var(--line); padding-top: 24px; }
.sinfra-capabilities h2 { margin: 0 0 14px; font-size: 22px; font-weight: 500; line-height: 1.4; letter-spacing: -.025em; }
.sinfra-capabilities p { max-width: 31ch; font-size: 16px; line-height: 1.65; color: var(--muted); }
.sinfra-console { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); align-items: end; gap: 48px; margin: 0 0 52px; padding: clamp(32px, 4vw, 60px); border: 1px solid #d2d5cd; border-radius: 22px; background: #e7e8e2; color: #292d29; }
.sinfra-console-eyebrow { margin: 0 0 36px; color: #68775e; font-size: 12px; font-weight: 600; letter-spacing: .16em; }
.sinfra-console h2 { max-width: 22ch; margin: 0; color: #292d29; font-size: clamp(30px, 3.3vw, 46px); font-weight: 500; line-height: 1.16; letter-spacing: -.055em; }
.sinfra-console h2 span { color: #718262; }
.sinfra-console-action { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
.sinfra-console-action p { max-width: 39ch; margin: 0; color: #5f655e; font-size: 16px; line-height: 1.7; }
.sinfra-console-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 54px; padding: 12px 20px; border-radius: 999px; background: #4c524b; color: #f2f2ec; font-size: 14px; font-weight: 600; line-height: 1.4; text-decoration: none; }
.sinfra-console-link:hover { background: #68775e; color: #f7f7f2; }
.sinfra-console-link:focus-visible { outline: 3px solid #dcebbe; outline-offset: 4px; }
.sinfra-console-link span { font-size: 20px; font-weight: 400; line-height: 1; transition: transform .2s; }
.sinfra-console-link:hover span { transform: translate(2px, -2px); }
.sinfra-console-note { color: #777d75; font-size: 12px; letter-spacing: .02em; }
.about-section { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; padding-block: 112px; align-items: center; }
.about-section h2 { font-size: clamp(36px,4.2vw,58px); line-height: 1.4; letter-spacing: -.05em; font-weight: 500; margin-top: 0; }
.about-section h2 span { color: var(--muted); }
.about-copy { padding-top: 30px; }
.about-copy > p { font-size: 17px; line-height: 2; }
.about-copy > p + p { color: var(--muted); margin-top: 20px; font-size: 16px; }
.about-copy .text-link { margin-top: 23px; }
/* A separate team introduction; the homepage keeps its original about section. */
.team-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding-block: 48px 60px; border-top: 1px solid var(--line); }
.team-intro h2 { font-size: clamp(40px, 5vw, 64px); font-weight: 500; line-height: 1.2; letter-spacing: -.05em; }
.team-copy { max-width: 460px; padding-top: 5px; }
.team-copy p { font-size: 18px; line-height: 1.75; }
.team-copy p + p { margin-top: 20px; color: var(--muted); }
.team-links { display: flex; flex-wrap: wrap; gap: 24px 56px; }
/* The Wildcard page turns an open-ended role into a clear, scan-friendly path. */
.join-us { margin-top: 52px; border-top: 1px solid var(--line); }
.join-hero { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(48px, 7vw, 104px); padding: clamp(58px, 7vw, 92px) 0 clamp(64px, 8vw, 104px); }
.join-eyebrow, .join-section-index { margin: 0; color: var(--muted); font-size: 11px; font-weight: 600; line-height: 1.3; letter-spacing: .16em; text-transform: uppercase; }
.join-hero .join-eyebrow { color: var(--ink); font-size: 16px; font-weight: 700; letter-spacing: .2em; }
.join-heading { max-width: 11ch; margin: 18px 0 0; font-size: clamp(44px, 5.6vw, 76px); font-weight: 500; line-height: 1.02; letter-spacing: -.06em; }
.join-summary { max-width: 620px; padding-top: 28px; }
.join-summary p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.join-summary p:first-child { color: var(--ink); font-size: 20px; line-height: 1.55; }
.join-summary p + p { margin-top: 22px; }
.join-section { display: grid; grid-template-columns: minmax(190px, .72fr) minmax(0, 1.28fr); gap: clamp(44px, 7vw, 104px); padding: clamp(48px, 6vw, 76px) 0; border-top: 1px solid var(--line); }
.join-section-heading h3, .join-application-panel h3 { margin: 16px 0 0; font-size: clamp(26px, 2.7vw, 38px); font-weight: 500; line-height: 1.15; letter-spacing: -.04em; }
.join-section-heading > p:last-child:not(.join-section-index) { max-width: 28ch; margin: 18px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.join-statement-list, .join-problem-list, .join-practice-grid, .join-compact-list, .join-question-list, .join-next-list { margin: 0; padding: 0; list-style: none; }
.join-statement-list { border-top: 1px solid var(--line); }
.join-statement-list li { padding: 19px 0; border-bottom: 1px solid var(--line); font-size: 18px; line-height: 1.55; }
.join-section-note { margin: 28px 0 0; padding: 20px 22px; border-left: 2px solid var(--ink); background: var(--section-paper); color: var(--muted); font-size: 15px; line-height: 1.7; }
.join-problem-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; border-top: 1px solid var(--line); }
.join-problem-list li { display: grid; grid-template-columns: 32px 1fr; gap: 12px; min-height: 96px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--line); font-size: 17px; line-height: 1.5; }
.join-problem-list li span, .join-practice-grid > li > span, .join-next-list li > span { color: var(--muted); font-size: 10px; letter-spacing: .1em; }
.join-practice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.join-practice-grid > li { min-height: 220px; padding: 25px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.join-practice-grid h4 { margin: 38px 0 0; font-size: 20px; font-weight: 500; line-height: 1.3; letter-spacing: -.025em; }
.join-practice-grid p { margin: 12px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.join-application-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.join-application-panel { min-width: 0; padding: clamp(42px, 5vw, 68px); }
.join-application-panel + .join-application-panel { border-left: 1px solid var(--line); }
.join-application-panel > p:not(.join-section-index):not(.join-question-label):not(.join-panel-note):not(.join-reply-time) { margin: 24px 0 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.join-compact-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.join-compact-list li { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 13px; }
.join-question-label { margin: 32px 0 0; font-size: 14px; font-weight: 600; }
.join-question-list { margin-top: 12px; counter-reset: join-question; border-top: 1px solid var(--line); }
.join-question-list li { position: relative; padding: 14px 0 14px 34px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.55; counter-increment: join-question; }
.join-question-list li::before { content: counter(join-question, decimal-leading-zero); position: absolute; top: 16px; left: 0; color: var(--ink); font-size: 10px; letter-spacing: .08em; }
.join-panel-note { margin: 22px 0 0; font-size: 14px; font-weight: 600; line-height: 1.6; }
.join-next-list { margin-top: 30px; border-top: 1px solid var(--line); }
.join-next-list li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.join-next-list p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.join-reply-time { margin: 30px 0 0; font-size: 19px; font-weight: 500; line-height: 1.4; }
.join-apply { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: clamp(34px, 5vw, 56px) 0; }
.join-apply-cta { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 18px; padding: 12px 22px; border: 1px solid var(--ink); border-radius: 999px; background: transparent; color: var(--ink); font-size: 14px; font-weight: 500; transition: background-color .2s, color .2s; }
@media (hover: hover) and (pointer: fine) {
  .join-apply-cta:hover { background: var(--ink); color: var(--paper); }
}
.join-apply-email { margin: 10px 0 0; font-size: 17px; }
.showcase-footer { border-top: 1px solid var(--line); display: grid; grid-template-columns: minmax(180px, .75fr) minmax(460px, 1.7fr) auto; gap: 42px; align-items: start; padding-block: 34px 42px; }
.showcase-footer .simate-wordmark .simate-brand-logo { width: 58px; height: 58px; flex-basis: 58px; }
.showcase-footer-brand { display: grid; gap: 16px; }
.showcase-footer-brand > span { max-width: 19ch; color: var(--muted); font-size: 10px; line-height: 1.55; letter-spacing: .12em; }
.showcase-social { min-width: 0; }
.showcase-social-label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 10px; line-height: 1; letter-spacing: .16em; }
.showcase-social-links { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.showcase-social-link { position: relative; display: grid; width: 100%; min-width: 0; min-height: 72px; align-content: center; gap: 6px; padding: 12px 22px 12px 0; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--ink); text-align: left; transition: color .2s, opacity .2s; }
.showcase-social-link + .showcase-social-link { padding-left: 14px; }
.showcase-social-platform { display: flex; min-width: 0; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; }
.showcase-social-icon { width: 17px; height: 17px; flex: 0 0 17px; color: var(--muted); transition: color .2s; }
.showcase-social-link small { overflow: hidden; color: var(--muted); font-size: 10px; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.showcase-social-arrow { position: absolute; top: 14px; right: 4px; color: var(--muted); font-size: 12px; }
a.showcase-social-link:hover, button.showcase-social-link:hover { color: var(--muted); }
a.showcase-social-link:hover .showcase-social-arrow, button.showcase-social-link:hover .showcase-social-arrow, .showcase-social-link:hover .showcase-social-icon { color: var(--ink); }
.showcase-social-link--pending { opacity: .52; cursor: default; }
.showcase-social-qr-mark { font-size: 8px; font-weight: 600; letter-spacing: .08em; }
.wechat-qr-dialog { width: min(420px, calc(100% - 32px)); max-width: none; padding: 0; border: 1px solid var(--liquid-edge); border-radius: 28px; background: color-mix(in srgb, var(--paper) 88%, transparent); color: var(--ink); box-shadow: 0 28px 80px #131a1640, inset 0 1px #ffffffa6; backdrop-filter: blur(28px) saturate(120%); -webkit-backdrop-filter: blur(28px) saturate(120%); overflow: hidden; }
.wechat-qr-dialog::backdrop { background: #11171352; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.wechat-qr-dialog[open] { animation: dialog-enter .25s var(--motion-ease); }
.wechat-qr-panel { position: relative; padding: 32px; }
.wechat-qr-close { position: absolute; top: 18px; right: 18px; border-color: var(--line); background: color-mix(in srgb, var(--paper) 68%, transparent); font-size: 22px; }
.wechat-qr-panel h2 { max-width: 12ch; margin: 20px 0 8px; font-size: 28px; font-weight: 500; line-height: 1.08; letter-spacing: -.04em; }
.wechat-qr-panel p { max-width: 32ch; color: var(--muted); font-size: 13px; line-height: 1.55; }
.wechat-qr-image { margin-top: 24px; padding: 14px; border: 1px solid var(--line); border-radius: 19px; background: #fff; }
.wechat-qr-image img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; image-rendering: auto; }
html.social-dialog-open { overflow: hidden; }
.showcase-footer-meta { display: flex; align-items: center; gap: 24px; padding-top: 24px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.back-top { font-size: 13px; }
.back-top:hover { color: var(--ink); }
html.player-open { overflow: hidden; overscroll-behavior: none; }
.demo-dialog { color: var(--ink); width: min(1080px, calc(100% - 64px)); max-height: calc(100dvh - 56px); padding: 22px; border: 1px solid var(--liquid-edge); border-radius: 24px; background: var(--paper); box-shadow: var(--liquid-shadow); overflow-y: auto; }
.demo-dialog::backdrop { background: #0b100c99; backdrop-filter: blur(8px); }
.demo-dialog[open] { animation: dialog-enter .25s var(--motion-ease); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; padding: 2px 2px 17px; gap: 18px; }
.dialog-head h2 { font-size: 23px; font-weight: 500; line-height: 1.4; margin-top: 5px; }
.dialog-close { background: var(--placeholder); flex-shrink: 0; }
.dialog-video-wrap { aspect-ratio: 16/9; background: #111; position: relative; }
.dialog-video-wrap > video { width: 100%; height: 100%; display: block; object-fit: contain; }
.player-cover { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: #111; pointer-events: none; }
.dialog-foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 15px; }
.dialog-foot p { font-size: 14px; color: var(--muted); }
.dialog-navigation { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.dialog-navigation > span { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.dialog-navigation button { border-color: var(--line); }
.player-error { position: absolute; inset: 0; background: #151515ed; color: white; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 20px; text-align: center; padding: 20px; }
.player-error .outline-button:hover { background: #444; }
@keyframes dialog-enter { from { opacity: 0; transform: translateY(12px) scale(.985); } to { opacity: 1; transform: none; } }
@media (min-width: 1500px) { .hero { padding-top: 82px; } }
@media (max-width: 1050px) {
  .page-width, .showcase-header .site-header-inner { width: calc(100% - 80px); }
  .showcase-header::after { left: 40px; right: 40px; }
  .showcase-nav { gap: 18px; margin-left: 0; }
  .hero-heading { gap: 24px; }
  .hero-intro { padding-right: 0; }
  .hero-intro > p { font-size: 16px; }
  .hero-stage { aspect-ratio: 1.85; }
  .demo-grid { --demo-columns: 2; gap: 30px 24px; }
  .demo-grid[data-paginated="true"]:not([data-gallery-ready]) .demo-card:nth-child(n+5) { display: none; }
  .research-grid { gap: 28px; }
  .about-section { gap: 50px; }
  .showcase-footer { grid-template-columns: 180px 1fr; }
  .showcase-social { grid-column: 2; }
  .showcase-footer-meta { grid-column: 1 / -1; justify-content: space-between; padding-top: 0; }
  .showcase-social-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 1000px) {
  .showcase-header .header-cta { display: none; }
}
@media (max-width: 760px) {
  .home-entry-grid { grid-template-columns: 1fr; gap: 12px; }
  .home-entry-card { min-height: 0; padding: 22px; }
  .home-entry-title { margin-top: 15px; }
  .home-entry-link { padding-top: 16px; }
}
@media (max-width: 720px) {
  :root { --site-header-height: 112px; }
  .showcase-header .site-header-inner { flex-wrap: wrap; gap: 0; padding-block: 10px 6px; }
  .showcase-nav { order: 3; flex-basis: 100%; justify-content: space-between; gap: 8px; margin: 0; overflow-x: auto; }
  .header-actions { margin-left: auto; }
}
@media (max-width: 680px) {
  .page-width, .showcase-header .site-header-inner { width: calc(100% - 40px); }
  .showcase-header .site-header-inner { min-height: 73px; }
  .showcase-header::after { left: 20px; right: 20px; }
  .simate-wordmark .simate-brand-logo { width: 54px; height: 54px; flex-basis: 54px; }
  .showcase-nav { gap: 8px; }
  .showcase-nav a { font-size: 14px; }
  .header-actions { gap: 0; }
  .showcase-header .header-cta { display: none; }
  .header-actions .icon-button { width: 36px; }
  .hero { padding-top: 40px; }
  .hero-heading { grid-template-columns: 1fr; gap: 24px; padding-bottom: 28px; }
  .hero h1 { font-size: clamp(43px,10.2vw,62px); margin-top: 18px; }
  .hero-intro { justify-self: start; padding: 0; width: 100%; }
  .hero-intro > p { line-height: 1.8; }
  .hero-intro .text-link { margin-top: 12px; }
  .hero-stage { aspect-ratio: 1.2; }
  .hero-stage > video { object-position: 50% 50%; }
  .stage-bottom { left: 20px; right: 20px; }
  .stage-bottom { bottom: 18px; gap: 8px; }
  .stage-bottom h2 { font-size: 23px; margin-top: 7px; }
  .stage-watch { margin-top: 8px; }
  .stage-toggle { min-width: 44px; width: 44px; justify-content: center; padding: 0; }
  .stage-toggle [data-hero-label] { display: none; }
  .demos-section { padding-block: 66px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 16px; }
  .section-heading h2 { font-size: 32px; margin-top: 0; }
  .section-heading > p { font-size: 15px; }
  .demo-toolbar { margin-block: 25px 23px; padding-bottom: 13px; display: block; }
  .demo-filters { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: -20px; padding-inline: 20px; gap: 5px; padding-block: 6px; }
  .demo-filters::-webkit-scrollbar { display: none; }
  .demo-filters button { padding-inline: 13px; }
  .demo-grid { --demo-columns: 1; gap: 28px; }
  .demo-grid[data-paginated="true"]:not([data-gallery-ready]) .demo-card:nth-child(n+3) { display: none; }
  .research-section { padding-block: 57px; }
  .research-grid { grid-template-columns: 1fr; gap: 30px; margin-top: 28px; }
  .research-grid article { padding-top: 22px; }
  .research-grid h3 { margin-top: 0; font-size: 23px; }
  .research-grid p { margin-top: 16px; }
  .about-section { grid-template-columns: 1fr; gap: 16px; padding-block: 65px; }
  .about-section h2 { font-size: clamp(34px, 8.8vw, 44px); margin-top: 0; }
  .about-copy { padding: 0; }
  .about-copy > p { font-size: 16px; }
  .team-intro { grid-template-columns: 1fr; gap: 24px; padding-block: 32px 36px; }
  .team-copy { max-width: 100%; padding: 0; }
  .team-copy p { font-size: 16px; }
  .team-links { flex-direction: column; align-items: flex-start; gap: 14px; }
  .join-us { margin-top: 40px; }
  .join-hero { grid-template-columns: 1fr; gap: 30px; padding: 42px 0 52px; }
  .join-heading { max-width: 12ch; margin-top: 14px; font-size: clamp(40px, 11.5vw, 56px); }
  .join-summary { max-width: 100%; padding-top: 0; }
  .join-summary p { font-size: 16px; }
  .join-summary p:first-child { font-size: 18px; }
  .join-summary p + p { margin-top: 18px; }
  .join-section { grid-template-columns: 1fr; gap: 26px; padding: 40px 0; }
  .join-section-heading h3, .join-application-panel h3 { margin-top: 12px; font-size: 28px; }
  .join-statement-list li { padding-block: 16px; font-size: 16px; }
  .join-section-note { margin-top: 22px; padding: 17px 18px; }
  .join-problem-list, .join-practice-grid, .join-application-grid { grid-template-columns: 1fr; }
  .join-problem-list li { min-height: 0; padding-block: 17px; font-size: 16px; }
  .join-practice-grid > li { min-height: 0; padding: 22px; }
  .join-practice-grid h4 { margin-top: 28px; }
  .join-application-panel { padding: 38px 0; }
  .join-application-panel + .join-application-panel { border-top: 1px solid var(--line); border-left: 0; }
  .join-application-grid { border-bottom: 0; }
  .join-apply { align-items: flex-start; flex-direction: column; gap: 26px; padding-block: 38px; border-top: 1px solid var(--line); }
  .join-apply-cta { width: 100%; justify-content: space-between; }
  .showcase-footer { grid-template-columns: 1fr; gap: 28px; padding-block: 28px 32px; }
  .showcase-social, .showcase-footer-meta { grid-column: 1; }
  .showcase-social-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .showcase-footer-meta { width: 100%; justify-content: space-between; gap: 16px; }
  .wechat-qr-panel { padding: 26px; }
  .wechat-qr-image { margin-top: 20px; padding: 10px; }
  .demo-dialog { width: calc(100% - 24px); max-height: calc(100dvh - 24px); padding: 14px; border-radius: 20px; }
  .dialog-head { padding-bottom: 13px; }
  .dialog-head h2 { font-size: 20px; }
  .dialog-foot { flex-direction: column; align-items: flex-start; gap: 15px; }
  .dialog-navigation { align-self: flex-end; }
}
@media (max-width: 900px) {
  .sipai-architecture img { aspect-ratio: 5 / 3; }
  .sinfra-diagram--desktop { display: none; }
  .sinfra-diagram--mobile { display: block; max-width: 520px; margin-inline: auto; }
  .sinfra-capabilities { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .roboscientist-loop { grid-template-columns: 1fr; gap: 28px; }
  .roboscientist-loop-copy p { max-width: 58ch; }
  .roboscientist-loop-figure { width: 100%; max-width: 640px; }
}
@media (max-width: 600px) {
  .research-detail { padding-top: 20px; }
  .project-back { margin-bottom: 16px; }
  .research-page .project-item h2 { font-size: 19px; }
  .post .sipai-architecture { margin-bottom: 36px; }
  .sipai-demos { margin-top: 68px; padding-top: 48px; }
  .sipai-section-index { margin-bottom: 12px; }
  .product-horizon { margin-top: 72px; }
  .product-horizon__layout { grid-template-columns: 1fr; gap: 44px; margin-top: 42px; }
  .product-horizon__list li { grid-template-columns: 34px minmax(0, 1fr); gap: 14px; min-height: 82px; }
  .product-horizon__list em { grid-column: 2; margin-top: -20px; padding-bottom: 18px; }
  .roboscientist-overview .post-title { font-size: clamp(36px, 8.6vw, 48px); }
  .roboscientist-overview .post-description { font-size: 16px; }
  .post .research-film { margin-bottom: 36px; }
  .research-film-play { gap: 10px; }
  .research-film-play-icon { width: 48px; height: 48px; }
  .research-film-play-icon svg { width: 18px; height: 18px; }
  .roboscientist-loop { padding-top: 28px; }
  .roboscientist-loop-diagram--desktop { display: none; }
  .roboscientist-loop-diagram--mobile { display: block; max-width: 440px; }
  .roboscientist-loop-diagram--mobile .loop-label { font-size: 20px; }
  .sinfra-overview .post-description { font-size: 16px; }
  .post .sinfra-architecture { margin-bottom: 36px; }
  .sinfra-capabilities { grid-template-columns: 1fr; gap: 28px; }
  .sinfra-capabilities > section { padding-top: 20px; }
  .sinfra-capabilities h2 { margin-bottom: 10px; }
  .sinfra-capabilities p { max-width: 38ch; }
  .sinfra-console { grid-template-columns: 1fr; gap: 28px; margin-bottom: 40px; padding: 30px 24px 34px; }
  .sinfra-console-eyebrow { margin-bottom: 24px; }
  .sinfra-console h2 { font-size: clamp(30px, 8vw, 40px); }
  .sinfra-console-action { gap: 18px; }
}
@media (max-width: 480px) {
  .showcase-nav a { font-size: 13px; }
}
@media (prefers-reduced-transparency: reduce), (prefers-contrast: more) {
  .demo-dialog::backdrop { backdrop-filter: none; background: #000c; }
  .stage-toggle, .card-play { backdrop-filter: none; background: #222; }
}
@media (forced-colors: active) {
  .demo-filters button[aria-pressed="true"] { border-color: Highlight; }
  .hero-stage { border: 1px solid CanvasText; }
}

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.demo-title-text { font: inherit; color: inherit; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demo-title-arrow { flex-shrink: 0; }
.demo-pagination { display: flex; align-items: center; justify-content: center; gap: 22px; margin-top: 36px; }
.demo-pagination > span { min-width: 48px; text-align: center; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.demo-pagination button { border-color: var(--line); }
.demo-pagination button:disabled { opacity: .3; }
.demo-pagination button:disabled:hover { background: none; }