@layer reset, base, components, motion;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, p { margin: 0; }
  img { display: block; max-width: 100%; }
  button, input, textarea { font: inherit; }
}

@layer base {
  :root {
    --bg: oklch(0.075 0 0);
    --surface: oklch(0.115 0.006 353.3);
    --surface-2: oklch(0.16 0.008 353.3);
    --ink: oklch(0.94 0.006 353.3);
    --muted: oklch(0.69 0.012 353.3);
    --line: oklch(0.29 0.012 353.3 / 0.72);
    --primary: oklch(0.57 0.158 353.3);
    --primary-hover: oklch(0.64 0.15 353.3);
    --focus: oklch(0.76 0.14 353.3);
    --page: min(92vw, 1440px);
    --header-h: 80px;
    color-scheme: dark;
  }
  body {
    background: var(--bg);
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
  }
  body::after {
    content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 20;
    background: radial-gradient(circle at 50% 0%, transparent 55%, oklch(0.02 0 0 / .35) 100%);
  }
  a { color: inherit; text-decoration: none; }
  h1, h2, h3 { font-weight: 540; letter-spacing: -.035em; text-wrap: balance; }
  h2 { font-size: clamp(2.5rem, 5vw, 5.6rem); line-height: 1.06; }
  p { text-wrap: pretty; }
  :focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
  .skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--ink); color: var(--bg); padding: .75rem 1rem; }
  .skip-link:focus { top: 1rem; }
}

@layer components {
  .site-header { height: var(--header-h); position: fixed; inset: 0 0 auto; z-index: 10; padding: 0 4vw; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid transparent; transition: background .35s, border-color .35s; }
  .site-header[data-scrolled] { background: oklch(0.075 0 0 / .88); backdrop-filter: blur(18px); border-color: var(--line); }
  .brand { display: inline-flex; align-items: center; width: max-content; }
  .brand img { display: block; width: 86px; height: auto; }
  .desktop-nav { display: flex; gap: 2.5rem; font-size: .86rem; color: var(--muted); }
  .desktop-nav a:hover { color: var(--ink); }
  .nav-cta { justify-self: end; font-size: .84rem; border-bottom: 1px solid var(--ink); padding-bottom: .2rem; }
  .menu-button, .mobile-menu { display: none; }

  .hero { min-height: 100dvh; position: relative; display: grid; align-items: center; overflow: hidden; border-bottom: 1px solid var(--line); }
  .hero-media { position: absolute; inset: 0; }
  .hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--bg) 0%, oklch(0.075 0 0 / .8) 30%, transparent 62%), linear-gradient(0deg, var(--bg) 0%, transparent 25%); }
  .hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; opacity: .9; }
  .hero-wash { position: absolute; width: 34vw; height: 34vw; right: 15vw; top: 26%; border-radius: 50%; filter: blur(90px); background: oklch(0.57 .158 353.3 / .08); }
  .hero-copy { position: relative; z-index: 2; width: var(--page); margin: auto; padding-top: var(--header-h); }
  .kicker { font: 600 .68rem/1.3 Arial, sans-serif; letter-spacing: .14em; color: var(--muted); margin-bottom: 2rem; }
  .hero h1 { font-size: clamp(3.5rem, 6.1vw, 5.7rem); line-height: .98; max-width: 12em; }
  .hero-lede { max-width: 31rem; color: oklch(0.77 .009 353.3); font-size: clamp(1rem, 1.25vw, 1.18rem); margin: 2rem 0 2.5rem; }
  .hero-actions { display: flex; align-items: center; gap: 2.2rem; }
  .button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: .72rem 1.4rem; border-radius: 2px; border: 0; cursor: pointer; white-space: nowrap; transition: transform .2s, background .25s; }
  .button:active { transform: translateY(1px); }
  .button-primary { background: var(--primary); color: oklch(.98 0 0); font-weight: 650; }
  .button-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
  .text-link { font-size: .92rem; border-bottom: 1px solid var(--line); padding: .6rem 0; }
  .text-link span { display: inline-block; margin-left: .5rem; transition: transform .2s; }
  .text-link:hover span { transform: translate(3px, -3px); }
  .hero-note { position: absolute; z-index: 2; right: 4vw; bottom: 5vh; display: grid; text-align: right; font: .63rem/1 Arial, sans-serif; letter-spacing: .18em; color: var(--muted); }
  .hero-note strong { font-size: 1.35rem; line-height: 1.4; color: var(--ink); letter-spacing: .08em; }

  .thesis { width: var(--page); margin: auto; padding: clamp(5rem, 8vw, 8rem) 0 clamp(7rem, 12vw, 12rem); display: grid; grid-template-columns: 3fr 9fr; }
  .section-index { color: var(--muted); font-size: .78rem; padding-top: .7rem; }
  .thesis-body { max-width: 66rem; }
  .thesis-body p { color: var(--muted); max-width: 45rem; margin: 3rem 0 0 auto; font-size: clamp(1rem, 1.5vw, 1.28rem); }

  .proof { width: var(--page); margin: auto; padding: 2rem 0 clamp(3.5rem, 5vw, 5rem); }
  .proof-heading { display: grid; grid-template-columns: 3fr 9fr; align-items: start; }
  .proof-heading > p { color: var(--muted); font-size: .78rem; padding-top: .7rem; }
  .proof-metrics { margin: clamp(4rem, 8vw, 8rem) 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
  .proof-metrics div { padding: 2rem 1.5rem 3rem 0; border-right: 1px solid var(--line); }
  .proof-metrics div:not(:first-child) { padding-left: 1.5rem; }
  .proof-metrics div:last-child { border-right: 0; }
  .proof-metrics dt { font: 500 clamp(3rem, 6vw, 6rem)/1 Arial, sans-serif; letter-spacing: -.05em; }
  .proof-metrics dt small { font-size: .28em; color: var(--primary-hover); letter-spacing: 0; }
  .proof-metrics dd { margin: 1.2rem 0 0; color: var(--muted); font-size: .84rem; }
  .industry-line { display: flex; justify-content: space-between; gap: 2rem; border-top: 1px solid var(--line); padding: 1.5rem 0 2.5rem; color: var(--muted); font-size: .8rem; }
  .industry-line p { color: var(--ink); letter-spacing: .08em; }

  .capabilities { background: oklch(.91 .006 353.3); color: oklch(.15 .008 353.3); padding: clamp(6rem, 10vw, 10rem) 4vw; }
  .section-heading { width: min(100%, 1360px); margin: 0 auto clamp(4rem, 8vw, 8rem); }
  .section-heading p { max-width: 34rem; margin-top: 1.5rem; color: oklch(.42 .012 353.3); }
  .capability-stage { width: min(100%, 1360px); margin: auto; display: grid; grid-template-columns: 1.35fr .65fr; gap: 1px; background: oklch(.72 .008 353.3); }
  .capability { background: oklch(.965 .003 353.3); min-height: 330px; padding: clamp(2rem, 4vw, 4rem); display: grid; grid-template-columns: auto 1fr; align-content: space-between; gap: 2rem; }
  .capability-main { grid-row: span 2; min-height: 660px; }
  .capability-dark { background: oklch(.16 .008 353.3); color: oklch(.94 .006 353.3); }
  .capability-code { color: var(--primary); font: 700 .9rem Arial, sans-serif; }
  .capability h3 { font-size: clamp(2rem, 3.4vw, 4rem); line-height: 1; }
  .capability p { max-width: 34rem; color: oklch(.42 .012 353.3); margin-top: 1.5rem; }
  .capability-dark p { color: oklch(.7 .01 353.3); }
  .capability ul { grid-column: 2; margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; color: oklch(.36 .01 353.3); font-size: .84rem; }
  .architecture-map { width: min(100%, 1360px); margin: clamp(5rem, 8vw, 8rem) auto 0; padding: clamp(2.5rem, 5vw, 5rem); background: oklch(.13 .006 353.3); color: oklch(.94 .006 353.3); border-radius: 8px; }
  .architecture-map figcaption { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; margin-bottom: clamp(3rem, 6vw, 6rem); }
  .architecture-map figcaption h3 { font-size: clamp(2rem, 4vw, 4rem); line-height: 1.1; }
  .architecture-map figcaption p { max-width: 34rem; color: oklch(.74 .01 353.3); font-size: clamp(1rem, 1.2vw, 1.16rem); line-height: 1.8; }
  .architecture-flow { position: relative; margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: oklch(.31 .012 353.3); }
  .architecture-flow li { min-height: 250px; position: relative; z-index: 1; padding: 2rem; display: flex; flex-direction: column; background: oklch(.17 .008 353.3); }
  .architecture-flow li:not(:last-child)::after { content: "→"; position: absolute; right: -13px; top: 50%; z-index: 2; width: 26px; height: 26px; display: grid; place-items: center; color: var(--primary-hover); background: oklch(.13 .006 353.3); border-radius: 50%; font-size: 1rem; }
  .architecture-flow span { color: var(--primary-hover); font-size: .9rem; font-weight: 650; }
  .architecture-flow strong { margin-top: 2rem; font-size: clamp(1.25rem, 1.7vw, 1.75rem); line-height: 1.55; letter-spacing: -.015em; }
  .architecture-flow small { margin-top: auto; color: oklch(.7 .01 353.3); font-size: .85rem; }

  .fde { width: var(--page); margin: auto; padding: clamp(7rem, 12vw, 12rem) 0; display: grid; grid-template-columns: 4fr 8fr; column-gap: clamp(3rem, 8vw, 8rem); align-items: start; }
  .fde-intro { grid-column: 1 / -1; display: grid; grid-template-columns: 4fr 8fr; column-gap: clamp(3rem, 8vw, 8rem); margin-bottom: clamp(4rem, 8vw, 8rem); }
  .fde-name { color: var(--primary-hover); font: 600 .68rem/1.5 Arial, sans-serif; letter-spacing: .14em; margin-bottom: 2rem; }
  .fde-intro h2 { grid-column: 1 / -1; max-width: 12em; font-size: clamp(3rem, 6vw, 5.4rem); }
  .fde-lede { grid-column: 2; max-width: 42rem; color: oklch(.78 .01 353.3); margin-top: 2rem; font-size: clamp(1.12rem, 1.35vw, 1.3rem); line-height: 1.85; }
  .fde-work { grid-column: 2; margin: 0; padding: 0; list-style: none; }
  .fde-work li { min-height: 220px; display: grid; grid-template-columns: minmax(9rem, 1fr) 2.25fr; gap: clamp(2rem, 4vw, 4rem); align-content: center; border-top: 1px solid var(--line); }
  .fde-work li:last-child { border-bottom: 1px solid var(--line); }
  .fde-work span { color: var(--primary-hover); font-size: 1rem; font-weight: 600; }
  .fde-work h3 { color: var(--ink); font-size: clamp(2rem, 2.6vw, 2.8rem); line-height: 1.2; letter-spacing: -.025em; }
  .fde-work p { color: oklch(.75 .01 353.3); margin-top: 1rem; max-width: 38rem; font-size: clamp(1.05rem, 1.2vw, 1.18rem); line-height: 1.8; }
  .fde-fit { grid-column: 1; margin-top: 0; padding: clamp(2rem, 3vw, 3rem); background: var(--surface); border-radius: 8px; }
  .fde-fit h3 { color: var(--ink); max-width: 12em; font-size: clamp(1.5rem, 2vw, 2rem); line-height: 1.35; letter-spacing: -.02em; }
  .fde-fit > p { color: oklch(.72 .01 353.3); margin-top: 1rem; max-width: 24rem; font-size: 1rem; line-height: 1.75; }
  .fde-fit ul { margin: 2.25rem 0 0; padding: 0; list-style: none; display: grid; gap: 1.3rem; max-width: 24rem; }
  .fde-fit li { position: relative; padding-left: 1.4rem; color: oklch(.86 .008 353.3); font-size: clamp(1.05rem, 1.15vw, 1.16rem); line-height: 1.65; }
  .fde-fit li::before { content: ""; position: absolute; left: 0; top: .7em; width: 7px; height: 7px; background: var(--primary); }

  .method { width: var(--page); margin: auto; padding: clamp(7rem, 12vw, 12rem) 0; }
  .method-intro > p, .contact-copy > p { color: var(--primary-hover); margin-bottom: 1.5rem; }
  .method-flow { margin: 6rem 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); }
  .method-flow li { min-height: 420px; position: relative; padding: 2rem clamp(1.5rem, 2.5vw, 2.5rem) 2rem 0; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
  .method-flow li::before { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; background: var(--primary); }
  .method-flow li:not(:last-child)::after { content: "→"; position: absolute; top: -15px; right: 1.25rem; color: var(--primary-hover); background: var(--bg); padding: 0 .5rem; font-size: 1.15rem; }
  .method-flow span { font-size: .9rem; color: var(--primary-hover); font-weight: 650; }
  .method-flow h3 { font-size: clamp(1.5rem, 2vw, 2rem); margin: 2.5rem 0 1rem; letter-spacing: -.02em; }
  .method-flow p { color: oklch(.74 .01 353.3); font-size: 1rem; line-height: 1.75; max-width: 18rem; }
  .method-output { margin-top: auto; padding-top: 1.5rem; border-top: 1px solid var(--line); display: grid; gap: .4rem; }
  .method-output small { color: var(--muted); font-size: .76rem; }
  .method-output strong { color: var(--ink); font-size: 1.05rem; font-weight: 600; }

  .voices { background: oklch(.91 .006 353.3); color: oklch(.15 .008 353.3); padding: clamp(7rem, 11vw, 11rem) max(4vw, calc((100vw - 1440px) / 2)); }
  .voices-heading { max-width: 60rem; margin-bottom: clamp(4rem, 7vw, 7rem); }
  .voices-heading p { margin-top: 1.5rem; color: oklch(.42 .012 353.3); }
  .voice-list { display: grid; grid-template-columns: 1.15fr .85fr; gap: 8vw; align-items: start; }
  .voice-list figure { margin: 0; padding-top: 2rem; border-top: 1px solid oklch(.68 .01 353.3); }
  .voice-list blockquote { margin: 0; font-size: clamp(1.35rem, 2.4vw, 2.5rem); line-height: 1.55; letter-spacing: -.025em; }
  .voice-list figcaption { margin-top: 2rem; color: oklch(.43 .012 353.3); font-size: .82rem; }

  .principle { min-height: 100dvh; background: var(--surface); display: grid; grid-template-columns: 1fr 1fr; align-items: center; overflow: hidden; }
  .principle-visual { height: 100%; min-height: 700px; position: relative; display: grid; place-items: center; }
  .principle-visual::before { content: ""; width: min(62%, 430px); aspect-ratio: 1; border-radius: 50%; border: 1px solid var(--line); box-shadow: inset 0 0 70px oklch(.57 .158 353.3 / .08); }
  .principle-visual span { position: absolute; width: 1px; height: 42%; background: linear-gradient(transparent, var(--primary), transparent); transform: rotate(var(--angle)); transform-origin: center; }
  .principle-visual span:nth-child(1) { --angle: 36deg; }
  .principle-visual span:nth-child(2) { --angle: 90deg; }
  .principle-visual span:nth-child(3) { --angle: 144deg; }
  .principle-copy { padding: 8vw; }
  .principle-copy p { max-width: 36rem; color: var(--muted); margin-top: 2rem; }

  .about { width: var(--page); min-height: 90dvh; margin: auto; display: grid; grid-template-columns: 4fr 8fr; align-items: center; border-bottom: 1px solid var(--line); }
  .about-word { font: 200 clamp(10rem, 25vw, 27rem)/1 Arial, sans-serif; color: oklch(.22 .02 353.3); transform: translateX(-12%); }
  .about-copy p { color: var(--muted); max-width: 40rem; margin-top: 2.2rem; }
  .about-copy .slogan { color: var(--primary-hover); font: 600 .85rem Arial, sans-serif; letter-spacing: .12em; }

  .contact { width: var(--page); margin: auto; padding: clamp(7rem, 11vw, 11rem) 0; display: grid; grid-template-columns: 5fr 7fr; gap: 8vw; }
  .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .contact-form label { display: grid; gap: .55rem; color: var(--muted); font-size: .78rem; }
  .contact-form .wide, .contact-form button { grid-column: 1 / -1; }
  input, textarea { width: 100%; color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid oklch(.45 .01 353.3); border-radius: 0; padding: .85rem 0; resize: vertical; }
  input::placeholder, textarea::placeholder { color: oklch(.59 .01 353.3); opacity: 1; }
  input:focus, textarea:focus { outline: none; border-color: var(--focus); }
  .contact-form button { margin-top: 1rem; width: max-content; min-width: 10rem; }
  .direct-contact { display: inline-block; margin-top: 2.5rem; color: var(--muted); font: 500 clamp(1.2rem, 2vw, 1.8rem)/1 Arial, sans-serif; border-bottom: 1px solid var(--line); padding-bottom: .5rem; }
  footer { width: var(--page); margin: auto; padding: 0 0 3rem; color: var(--muted); font-size: .76rem; }
  .brand-family { padding: clamp(5rem, 8vw, 8rem) 0; border-top: 1px solid var(--line); }
  .brand-family-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 3rem; }
  .brand-family-heading h2 { color: var(--ink); font-size: clamp(1.8rem, 3vw, 3rem); letter-spacing: -.025em; }
  .brand-family-heading p { max-width: 24rem; text-align: right; }
  .brand-family-grid { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
  .brand-family-grid li { min-height: 132px; display: grid; place-items: center; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .brand-family-grid img { width: min(72%, 168px); height: auto; filter: invert(1) grayscale(1); opacity: .67; transition: opacity .25s, transform .25s; }
  .brand-family-grid li:hover img { opacity: 1; transform: translateY(-2px); }
  .footer-meta { padding-top: 3rem; display: grid; grid-template-columns: 1fr auto auto auto; gap: 3rem; align-items: center; }
  .footer-brand img { width: 132px; }
}

@layer motion {
  @media (prefers-reduced-motion: no-preference) {
    .hero-media img { animation: hero-in 1.6s cubic-bezier(.16,1,.3,1) both; }
    .hero-copy > * { animation: copy-in .9s cubic-bezier(.16,1,.3,1) both; }
    .hero-copy > *:nth-child(2) { animation-delay: .1s; }
    .hero-copy > *:nth-child(3) { animation-delay: .18s; }
    .hero-copy > *:nth-child(4) { animation-delay: .26s; }
    .principle-visual span { animation: scan 7s ease-in-out infinite alternate; }
    .reveal { animation: reveal linear both; animation-timeline: view(); animation-range: entry 10% cover 30%; }
    @keyframes hero-in { from { opacity: 0; transform: scale(1.06); } to { opacity: .9; transform: scale(1); } }
    @keyframes copy-in { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes reveal { from { opacity: .4; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes scan { 50% { filter: brightness(1.8); transform: rotate(calc(var(--angle) + 18deg)) scaleY(1.08); } }
  }
}

@media (max-width: 900px) {
  :root { --page: min(90vw, 720px); }
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav, .nav-cta { display: none; }
  .menu-button { justify-self: end; display: grid; gap: 6px; width: 42px; height: 42px; place-content: center; background: transparent; border: 0; color: var(--ink); }
  .menu-button span { width: 22px; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-menu { display: none; position: fixed; top: var(--header-h); left: 0; right: 0; padding: 2rem 5vw 3rem; background: var(--bg); border-bottom: 1px solid var(--line); }
  .mobile-menu[data-open] { display: grid; gap: 1.5rem; }
  .hero-media { left: 18%; opacity: .62; }
  .hero-media::after { background: linear-gradient(90deg, var(--bg) 0%, oklch(.075 0 0 / .78) 52%, transparent), linear-gradient(0deg, var(--bg), transparent 45%); }
  .hero h1 { font-size: clamp(3rem, 11vw, 5.2rem); }
  .thesis, .contact { grid-template-columns: 1fr; gap: 3rem; }
  .proof-heading { grid-template-columns: 1fr; gap: 2rem; }
  .proof-metrics { grid-template-columns: 1fr 1fr; }
  .proof-metrics div:nth-child(2) { border-right: 0; }
  .proof-metrics div:nth-child(3), .proof-metrics div:nth-child(4) { border-top: 1px solid var(--line); }
  .thesis-body p { margin-left: 0; }
  .capability-stage { grid-template-columns: 1fr; }
  .capability-main { grid-row: auto; min-height: 460px; }
  .architecture-flow { grid-template-columns: 1fr 1fr; }
  .architecture-flow li:nth-child(2)::after { display: none; }
  .architecture-map figcaption { grid-template-columns: 1fr; }
  .fde { grid-template-columns: 1fr; row-gap: 4rem; }
  .fde-intro { grid-template-columns: 1fr; margin-bottom: 0; }
  .fde-intro h2, .fde-lede { grid-column: 1; }
  .fde-work, .fde-fit { grid-column: 1; grid-row: auto; }
  .method-flow { grid-template-columns: 1fr 1fr; }
  .principle { grid-template-columns: 1fr; }
  .voice-list { grid-template-columns: 1fr; gap: 4rem; }
  .principle-visual { min-height: 55dvh; }
  .principle-copy { padding: 4rem 5vw 7rem; }
  .about { grid-template-columns: 1fr; padding: 5rem 0 8rem; }
  .about-word { position: absolute; opacity: .45; }
  .about-copy { position: relative; }
  .brand-family-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-meta { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
}

@media (max-width: 600px) {
  .hero-copy { padding-top: 5rem; }
  .hero-note { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: .8rem; }
  .hero-media { left: 0; transform: translateX(14%); }
  .kicker { max-width: 17rem; line-height: 1.7; }
  .thesis { padding-block: 6rem; }
  h2 { font-size: clamp(2.4rem, 12vw, 4rem); }
  .capabilities { padding-inline: 5vw; }
  .capability { min-height: 340px; padding: 2rem; grid-template-columns: 1fr; }
  .capability-code { order: -1; }
  .capability ul { grid-column: 1; }
  .architecture-map { padding: 2rem; }
  .architecture-flow { grid-template-columns: 1fr; }
  .architecture-flow li { min-height: 210px; }
  .architecture-flow li:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -13px; transform: translateX(-50%); }
  .architecture-flow li:nth-child(2)::after { display: grid; }
  .fde-work li { grid-template-columns: 1fr; padding: 2.5rem 0; gap: 1.15rem; }
  .fde-fit { padding: 2rem; }
  .fde-work li { min-height: 0; }
  .method-flow li { min-height: 0; padding: 2.5rem 0; }
  .method-flow li:not(:last-child)::after { content: "↓"; top: auto; right: auto; left: 0; bottom: -14px; }
  .method-output { margin-top: 2rem; }
  .method-flow { grid-template-columns: 1fr; margin-top: 4rem; }
  .proof-metrics { grid-template-columns: 1fr; }
  .proof-metrics div, .proof-metrics div:not(:first-child) { padding: 1.5rem 0 2rem; border-right: 0; border-top: 1px solid var(--line); }
  .proof-metrics div:first-child { border-top: 0; }
  .industry-line { flex-direction: column; }
  .method-flow li { min-height: 220px; }
  .contact-form { grid-template-columns: 1fr; }
  .contact-form label, .contact-form .wide, .contact-form button { grid-column: 1; }
  .brand-family-heading { align-items: start; flex-direction: column; }
  .brand-family-heading p { text-align: left; }
  .brand-family-grid { grid-template-columns: 1fr 1fr; }
  .brand-family-grid li { min-height: 108px; }
  .footer-meta { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}