/* Layout: Apple-style centered statements over a cool light-grey ground; media breaks out wide; one blue-violet accent taken from the in-sim Aurora logo. Single light theme by design. */
  :root {
    color-scheme: light;
    --bg: #f5f5f7;
    --surface: #ffffff;
    --ink: #1d1d1f;
    --ink-2: #5f5f64;
    --ink-3: #c4c4cb;
    --line: rgba(29, 29, 31, 0.1);
    --accent: #4b45e6;
    --accent-press: #3a34c8;
    --accent-soft: rgba(75, 69, 230, 0.08);
    --accent-rgb: 75, 69, 230;
    --nav-h: 68px;
    --font: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --gutter: 16px;
    --max: 1200px;
    --radius: 24px;
  }
  @media (min-width: 768px) { :root { --gutter: 40px; } }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 400 17px/1.5 var(--font);
    letter-spacing: -0.011em;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  body::before {
    content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px);
    z-index: 60; background: var(--bg);
  }
  ::selection { background: var(--accent); color: #fff; }
  img, video { display: block; max-width: 100%; }
  a { color: inherit; }
  :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
  h1, h2, h3 { margin: 0; text-wrap: balance; font-weight: 600; }
  p { margin: 0; text-wrap: pretty; }

  .wrap {
    width: 100%;
    max-width: calc(var(--max) + 2 * var(--gutter));
    margin-inline: auto;
    padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
    padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
  }
  .section { padding-block: clamp(96px, 14vw, 180px); }
  .center { text-align: center; }

  .h2 {
    font-size: clamp(2.25rem, 5.6vw, 4.5rem);
    line-height: 1.04;
    letter-spacing: -0.032em;
  }
  .lede {
    font-size: clamp(1.125rem, 1.6vw, 1.375rem);
    line-height: 1.45;
    color: var(--ink-2);
    max-width: 38em;
  }
  .center .lede { margin-inline: auto; }
  .head { display: grid; gap: 22px; margin-bottom: clamp(48px, 7vw, 88px); }

  /* Buttons */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 48px; padding: 0 26px; border: 0; border-radius: 999px;
    font: 500 17px/1 var(--font); letter-spacing: -0.01em; text-decoration: none;
    background: var(--accent); color: #fff; cursor: pointer;
    transition: transform 140ms var(--ease), background-color 200ms var(--ease);
  }
  .btn:hover { background: var(--accent-press); }
  .btn:active { transform: scale(0.97); transition-duration: 80ms; }
  .btn--sm { min-height: 34px; padding: 0 16px; font-size: 14px; }
  .link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--accent); font-weight: 500; text-decoration: none;
  }
  .link svg { transition: transform 240ms var(--ease); }
  .link:hover { text-decoration: underline; text-underline-offset: 4px; }
  .link:hover svg { transform: translateX(3px); }

  /* Nav — translucent material, edge appears only once content scrolls under it */
  .nav {
    position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
    background: rgba(245, 245, 247, 0.72);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    box-shadow: 0 1px 0 transparent;
    transition: box-shadow 300ms var(--ease);
  }
  .nav.is-scrolled { box-shadow: 0 1px 0 var(--line); }
  .nav .wrap { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 24px; }
  /* Lockup mirrors the real logo: the hex dome in accent, AURORA over a widely tracked PIXEL STUDIO */
  .brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
  .brand-mark {
    width: 50px; height: auto; flex: none;
    transition: transform 400ms var(--ease);
  }
  .brand:hover .brand-mark { transform: translateY(-2px); }
  .brand-text { display: grid; gap: 3px; line-height: 1; }
  .brand-text b { font-size: 19px; font-weight: 700; letter-spacing: 0.06em; }
  .brand-text small { font-size: 10.5px; font-weight: 500; letter-spacing: 0.34em; color: var(--ink-2); }
  .nav-links { display: none; gap: 30px; font-size: 14px; }
  .nav-links a { text-decoration: none; color: var(--ink); opacity: 0.8; transition: opacity 200ms; }
  .nav-links a:hover { opacity: 1; }
  @media (min-width: 820px) { .nav-links { display: flex; } }
  /* Hex field: the logo's pixel cells scattered faintly behind the page, thickest toward the edges */
  .hexfield { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
  main, .foot { position: relative; z-index: 1; }
  @media (prefers-reduced-transparency: reduce) { .nav { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; } }

  /* Intro film (HyperFrames render) */
  .intro {
    position: fixed; inset: 0; z-index: 100;
    display: grid; place-items: center;
    background: var(--bg);
    transition: opacity 900ms var(--ease), filter 900ms var(--ease), transform 900ms var(--ease), visibility 0s linear 900ms;
  }
  .intro video { width: min(100vw, 177.78vh); height: auto; }
  .intro.is-done { opacity: 0; filter: blur(12px); transform: scale(1.04); visibility: hidden; pointer-events: none; }
  .intro-skip {
    position: absolute;
    right: calc(20px + env(safe-area-inset-right, 0px));
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    border: 0; border-radius: 999px; padding: 10px 18px;
    background: rgba(29, 29, 31, 0.06); color: var(--ink-2);
    font: 500 14px/1 var(--font); cursor: pointer;
    transition: background-color 200ms, transform 120ms var(--ease);
  }
  .intro-skip:hover { background: rgba(29, 29, 31, 0.1); color: var(--ink); }
  .intro-skip:active { transform: scale(0.96); }

  /* Hero */
  .hero { padding-top: clamp(56px, 9vw, 112px); text-align: center; }
  .hero h1 { display: grid; gap: 14px; }
  .hero .h1-lead {
    font-size: clamp(1.125rem, 2vw, 1.625rem); font-weight: 500; color: var(--ink-2); letter-spacing: -0.015em;
  }
  .hero .h1-main {
    font-size: clamp(2.6rem, 7.4vw, 6rem); line-height: 1.0; letter-spacing: -0.038em;
  }
  .hero .h1-main em { font-style: normal; color: var(--accent); }
  .h1-main { perspective: 1000px; }
  .wd { display: inline-block; white-space: nowrap; }
  .ch {
    display: inline-block; transform-origin: 50% 100%;
    transition: opacity 700ms var(--ease), transform 1100ms var(--ease), filter 800ms var(--ease);
    transition-delay: calc(220ms + var(--i) * 26ms);
  }
  .pre-intro .ch { opacity: 0; transform: translateY(0.45em) rotateX(-75deg); filter: blur(10px); }
  .wm { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.14em; margin-bottom: -0.14em; }
  .wi { display: inline-block; }
  .hero .lede { margin: 28px auto 0; max-width: 34em; }
  .hero-ctas { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 28px; margin-top: 36px; }
  .hero-note { margin-top: 22px; font-size: 14px; color: var(--ink-2); }
  [data-hero] { transition: opacity 1000ms var(--ease), transform 1000ms var(--ease), filter 1000ms var(--ease); }
  .pre-intro [data-hero] { opacity: 0; transform: translateY(28px); filter: blur(8px); }

  .hero-media { margin-top: clamp(56px, 8vw, 96px); padding-inline: max(var(--gutter), env(safe-area-inset-left, 0px)); }
  .hero-frame {
    position: relative; max-width: 1440px; margin-inline: auto; aspect-ratio: 16 / 9;
    border-radius: var(--radius); overflow: hidden; background: #dcdce2;
    transform-origin: 50% 0;
  }
  .hero-frame video { width: 100%; height: 100%; object-fit: cover; }
  .sound {
    position: absolute;
    right: 16px; bottom: 16px;
    display: inline-flex; align-items: center; gap: 8px;
    border: 0; border-radius: 999px; padding: 9px 14px;
    background: rgba(255, 255, 255, 0.72); color: var(--ink);
    -webkit-backdrop-filter: blur(16px) saturate(180%); backdrop-filter: blur(16px) saturate(180%);
    font: 500 13px/1 var(--font); cursor: pointer;
    transition: transform 120ms var(--ease), background-color 200ms;
  }
  .sound:hover { background: rgba(255, 255, 255, 0.9); }
  .sound:active { transform: scale(0.96); }

  .allies-line { margin-top: 40px; font-size: 14px; color: var(--ink-2); text-align: center; }
  .allies-line strong { color: var(--ink); font-weight: 500; }

  /* Statement with scroll-lit words */
  .statement .h2 { margin-bottom: 36px; }
  .scrub {
    font-size: clamp(1.5rem, 3.3vw, 2.625rem);
    line-height: 1.3; letter-spacing: -0.025em; font-weight: 600;
    max-width: 24em; margin-inline: auto;
  }
  .scrub .w { transition: color 120ms linear; }

  /* Solution */
  .feature-media {
    border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 9; background: #dcdce2;
    max-width: 100%;
  }
  .feature-media img { width: 100%; height: 100%; object-fit: cover; transform-origin: 50% 50%; }
  .pillars {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px 40px; margin-top: 48px;
  }
  .pillar { display: grid; gap: 6px; padding-top: 20px; border-top: 1px solid var(--line); min-width: 0; }
  .pillar h3 { font-size: 19px; letter-spacing: -0.02em; }
  .pillar p { color: var(--ink-2); font-size: 16px; }
  .media-caption { margin-top: 36px; font-size: 14px; color: var(--ink-2); }

  /* Why VR */
  .why { background: var(--surface); }
  .why-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: clamp(40px, 5vw, 64px) clamp(32px, 4vw, 56px);
  }
  .why-item { display: grid; gap: 10px; min-width: 0; }
  .why-item svg { width: 34px; height: 34px; color: var(--accent); margin-bottom: 6px; }
  .why-item h3 { font-size: clamp(1.25rem, 1.8vw, 1.5rem); letter-spacing: -0.022em; }
  .why-item p { color: var(--ink-2); max-width: 30em; }

  /* Simulations carousel */
  .sims-head { display: grid; gap: 28px; }
  .sims-head .head { margin-bottom: 0; }
  .chips { display: flex; gap: 8px; flex-wrap: wrap; }
  .chip {
    border: 0; border-radius: 999px; padding: 10px 18px; min-height: 40px;
    background: rgba(29, 29, 31, 0.06); color: var(--ink-2);
    font: 500 15px/1 var(--font); letter-spacing: -0.01em; cursor: pointer;
    transition: background-color 300ms var(--ease), color 300ms var(--ease), transform 120ms var(--ease);
  }
  .chip:hover { color: var(--ink); background: rgba(29, 29, 31, 0.1); }
  .chip:active { transform: scale(0.96); }
  .chip.is-active { background: var(--ink); color: var(--bg); }
  .swipe-hint {
    display: inline-flex; align-items: center; gap: 8px; margin-top: -12px;
    font-size: 14px; color: var(--ink-2);
  }
  .swipe-hint svg { animation: nudge 1.8s var(--ease) infinite; }
  @keyframes nudge { 0%, 60%, 100% { transform: translateX(0); } 30% { transform: translateX(5px); } }
  .sims-pinned .swipe-hint { display: none; }
  .rail {
    display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
    padding-block: clamp(40px, 5vw, 64px) 24px;
    --edge: max(var(--gutter), calc((100vw - var(--max)) / 2), env(safe-area-inset-left, 0px));
    padding-inline: var(--edge);
    scroll-padding-inline: var(--edge);
    scrollbar-width: none;
    overscroll-behavior-x: contain;
  }
  .rail::-webkit-scrollbar { display: none; }
  .sim {
    flex: 0 0 min(84vw, 560px); scroll-snap-align: start;
    background: var(--surface); border-radius: var(--radius); overflow: hidden;
    display: flex; flex-direction: column;
    box-shadow: 0 1px 2px rgba(29, 29, 31, 0.04), 0 12px 32px -12px rgba(29, 29, 31, 0.12);
    transition: transform 500ms var(--ease), box-shadow 500ms var(--ease);
  }
  .sim:hover { transform: translateY(-4px); box-shadow: 0 1px 2px rgba(29, 29, 31, 0.04), 0 24px 48px -16px rgba(29, 29, 31, 0.18); }
  .sim-media { aspect-ratio: 16 / 10; background: #dcdce2; overflow: hidden; }
  .sim-media video { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
  .sim:hover .sim-media video { transform: scale(1.03); }
  .sim-body { display: flex; flex-direction: column; gap: 14px; padding: 28px 28px 30px; flex: 1; }
  /* Desktop: the section pins and vertical scroll walks the rail sideways; cards turn landscape */
  .sims-pinned .sims-stage {
    min-height: calc(100vh - var(--nav-h) - env(safe-area-inset-top, 0px));
    display: flex; flex-direction: column; justify-content: center; padding-block: 24px;
  }
  .sims-pinned .sims-head .h2 { font-size: clamp(2.25rem, 4vw, 3.5rem); }
  .sims-pinned .rail { overflow: visible; scroll-snap-type: none; padding-block: 32px 8px; will-change: transform; }
  .sims-pinned .sim { flex-basis: min(900px, 76vw); flex-direction: row; min-height: min(440px, 52vh); }
  .sims-pinned .sim-media { flex: 1.15; aspect-ratio: auto; }
  .sims-pinned .sim-body { flex: 1; padding: 32px; }
  .sim-area { font-size: 13px; color: var(--ink-2); letter-spacing: 0; }
  .sim h3 { font-size: clamp(1.4rem, 2.2vw, 1.75rem); line-height: 1.12; letter-spacing: -0.026em; }
  .sim blockquote { margin: 0; color: var(--ink-2); font-size: 16px; }
  .sim dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 4px 0 0; font-size: 14px; }
  .sim dt { color: var(--ink-2); }
  .sim dd { margin: 0; }
  .sim .link { margin-top: auto; padding-top: 10px; }
  .tag {
    display: inline-flex; align-self: flex-start; padding: 5px 10px; border-radius: 999px;
    background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 500;
  }

  /* How it works — sticky film, steps light up as they pass */
  .how { display: grid; gap: 48px; align-items: start; }
  @media (min-width: 900px) { .how { grid-template-columns: 1.15fr 1fr; gap: 72px; } }
  .how-media {
    position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; background: #dcdce2;
  }
  @media (min-width: 900px) { .how-media { position: sticky; top: calc(var(--nav-h) + 48px + env(safe-area-inset-top, 0px)); } }
  .how-media video { width: 100%; height: 100%; object-fit: cover; }
  .steps { list-style: none; margin: 0; padding: 0; display: grid; }
  .step {
    display: grid; grid-template-columns: 44px 1fr; gap: 4px 12px;
    padding-block: 32px; border-top: 1px solid var(--line);
    transition: color 400ms var(--ease);
  }
  @media (min-width: 900px) { .step { padding-block: 9vh; } }
  .step-n { font-size: 15px; font-weight: 500; color: var(--accent); font-variant-numeric: tabular-nums; padding-top: 6px; }
  .step h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); letter-spacing: -0.028em; }
  .step p { grid-column: 2; color: var(--ink-2); }
  .js .step.is-dim h3 { color: var(--ink-3); }
  .js .step.is-dim .step-n { color: var(--ink-3); }

  /* Evidence */
  .evidence { background: var(--surface); }
  .ev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 40px; }
  .ev { display: grid; gap: 10px; align-content: start; }
  .ev-figure { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; letter-spacing: -0.028em; line-height: 1.1; }
  .ev p { color: var(--ink-2); }
  .allies {
    display: flex; flex-wrap: wrap; gap: 12px 40px; align-items: center; justify-content: center;
    margin-top: clamp(56px, 7vw, 88px); padding-top: 32px; border-top: 1px solid var(--line);
    font-size: 15px; color: var(--ink-2);
  }
  .allies strong { color: var(--ink); font-weight: 500; }

  /* Plans */
  .plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
  .plan {
    display: flex; flex-direction: column; gap: 18px;
    padding: 36px 32px; border-radius: var(--radius); background: var(--surface);
  }
  .plan.is-featured { box-shadow: inset 0 0 0 2px var(--accent); }
  .plan-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 26px; }
  .plan-k { font-size: 14px; color: var(--ink-2); }
  .plan h3 { font-size: 26px; letter-spacing: -0.026em; line-height: 1.15; }
  .plan > p { color: var(--ink-2); }
  .plan ul { list-style: none; margin: 4px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 12px; font-size: 16px; }
  .plan li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; }
  .plan li svg { color: var(--accent); margin-top: 3px; }
  .plan .btn { margin-top: auto; align-self: flex-start; }
  .plan:not(.is-featured) .btn { background: rgba(29, 29, 31, 0.07); color: var(--ink); }
  .plan:not(.is-featured) .btn:hover { background: rgba(29, 29, 31, 0.12); }

  /* Demo form */
  .demo-card {
    display: grid; gap: 48px; padding: clamp(28px, 5vw, 64px); border-radius: 32px; background: var(--surface);
  }
  @media (min-width: 900px) { .demo-card { grid-template-columns: 1fr 1.1fr; } }
  .demo-copy { display: grid; gap: 20px; align-content: start; min-width: 0; }
  .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; min-width: 0; }
  .field { display: grid; gap: 6px; min-width: 0; }
  .field.full { grid-column: 1 / -1; }
  @media (max-width: 560px) { .field { grid-column: 1 / -1; } }
  .field label { font-size: 13px; color: var(--ink-2); font-weight: 500; }
  .field input, .field select {
    width: 100%; height: 50px; padding: 0 16px; border-radius: 14px;
    border: 1px solid transparent; background: var(--bg); color: var(--ink);
    font: 400 17px/1 var(--font); letter-spacing: -0.01em;
    transition: border-color 200ms, box-shadow 200ms, background-color 200ms;
  }
  .field input::placeholder { color: #707076; }
  .field input:focus, .field select:focus { outline: none; background: var(--surface); border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
  .field input[aria-invalid="true"] { border-color: #c4314b; }
  .form .btn { grid-column: 1 / -1; justify-self: start; margin-top: 8px; }
  .form-note { grid-column: 1 / -1; font-size: 13px; color: var(--ink-2); }
  .form-error { grid-column: 1 / -1; font-size: 14px; color: #b0263d; }
  .thanks { display: grid; gap: 10px; align-content: center; }
  .thanks h3 { font-size: 28px; letter-spacing: -0.026em; }
  .thanks p { color: var(--ink-2); }

  /* Footer */
  .foot { padding-block: 48px 64px; font-size: 13px; color: var(--ink-2); }
  .foot .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 28px; }
  .foot a { color: var(--ink); text-decoration: none; }
  .foot a:hover { text-decoration: underline; text-underline-offset: 3px; }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 1ms !important; animation-duration: 1ms !important; }
    .pre-intro [data-hero], .pre-intro .ch { opacity: 1; transform: none; filter: none; }
  }

  /* =================== Landings de simulación (generado por landings/build.py) =================== */
  .crumb { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink-2); text-decoration: none; }
  .crumb:hover { color: var(--ink); }
  .crumb svg { transition: transform 240ms var(--ease); }
  .crumb:hover svg { transform: translateX(-3px); }
  .eyebrow { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 10px; font-size: 14px; color: var(--ink-2); }
  .eyebrow .tag { align-self: center; }
  .hero-course { padding-top: clamp(32px, 5vw, 56px); }
  .hero-course .crumb { margin-bottom: clamp(28px, 4vw, 44px); }
  .hero-course h1 { margin-top: 18px; }
  .hero-course .h1-main { font-size: clamp(2.4rem, 6.2vw, 5.25rem); }
  .hero-course .lede { color: var(--ink); font-weight: 500; font-size: clamp(1.25rem, 2.1vw, 1.75rem); line-height: 1.3; letter-spacing: -0.02em; max-width: 30em; }
  .hero-course .sub { margin: 16px auto 0; max-width: 40em; color: var(--ink-2); }
  .trust { margin-top: 40px; font-size: 14px; color: var(--ink-2); text-align: center; }
  .trust strong { color: var(--ink); font-weight: 500; }

  .split { display: grid; gap: clamp(36px, 5vw, 72px); align-items: center; }
  @media (min-width: 900px) { .split { grid-template-columns: 1fr 1.1fr; } }
  .split > * { min-width: 0; }
  .split .lede { margin-top: 22px; }

  .learn { display: grid; grid-template-columns: 1fr; gap: clamp(36px, 4vw, 56px) clamp(32px, 4vw, 56px); }
  @media (min-width: 760px) { .learn { grid-template-columns: 1fr 1fr; } }
  .learn-item { display: grid; gap: 10px; align-content: start; padding-top: 22px; border-top: 1px solid var(--line); min-width: 0; }
  .learn-n { font-size: 15px; font-weight: 500; color: var(--accent); font-variant-numeric: tabular-nums; }
  .learn-item h3 { font-size: clamp(1.2rem, 1.7vw, 1.4rem); letter-spacing: -0.022em; line-height: 1.2; }
  .learn-item p { color: var(--ink-2); }
  .learn-item.no-title p { color: var(--ink); font-size: clamp(1.1rem, 1.5vw, 1.25rem); line-height: 1.4; letter-spacing: -0.016em; }

  .eval { margin-top: 28px; padding: 24px 26px; border-radius: 20px; background: var(--surface); display: grid; gap: 8px; }
  .eval span { font-size: 13px; font-weight: 500; color: var(--accent); }
  .eval p { color: var(--ink-2); font-size: 16px; }
  .step.no-title p { grid-column: 2; color: var(--ink); font-size: clamp(1.2rem, 1.9vw, 1.6rem); line-height: 1.3; letter-spacing: -0.024em; font-weight: 600; }
  .js .step.is-dim.no-title p { color: var(--ink-3); }

  .who { background: var(--surface); }
  .who-list { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 14px; font-size: clamp(1.1rem, 1.5vw, 1.25rem); letter-spacing: -0.016em; }
  .who-list li { display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: start; }
  .who-list svg { color: var(--accent); margin-top: 6px; }
  .spec { width: 100%; border-collapse: collapse; font-size: 16px; }
  .spec th, .spec td { text-align: left; vertical-align: top; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .spec tr:first-child th, .spec tr:first-child td { border-top: 1px solid var(--line); }
  .spec th { width: 40%; padding-right: 16px; font-weight: 400; color: var(--ink-2); }
  .spec-k { font-size: 13px; font-weight: 500; color: var(--ink-2); margin-bottom: 14px; }

  .buy { text-align: center; }
  .buy-card { display: grid; gap: 20px; justify-items: center; padding: clamp(40px, 6vw, 80px) clamp(24px, 5vw, 64px); border-radius: 32px; background: var(--surface); }
  .buy-card .h2 { font-size: clamp(2rem, 4.4vw, 3.5rem); }
  .buy-note { font-size: 13px; color: var(--ink-2); }

  .faq { max-width: 820px; margin-inline: auto; }
  .faq details { border-bottom: 1px solid var(--line); }
  .faq details:first-of-type { border-top: 1px solid var(--line); }
  .faq summary {
    display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 0;
    cursor: pointer; list-style: none; font-size: clamp(1.1rem, 1.6vw, 1.3rem); font-weight: 600; letter-spacing: -0.02em;
  }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after {
    content: ""; flex: none; width: 12px; height: 12px;
    background: linear-gradient(currentColor, currentColor) center / 12px 1.6px no-repeat, linear-gradient(currentColor, currentColor) center / 1.6px 12px no-repeat;
    color: var(--accent); transition: transform 400ms var(--ease);
  }
  .faq details[open] summary::after { transform: rotate(135deg); }
  .faq .ans { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 500ms var(--ease); }
  .faq details[open] .ans { grid-template-rows: 1fr; }
  .faq .ans > p { overflow: hidden; color: var(--ink-2); max-width: 40em; }
  .faq details[open] .ans > p { padding-bottom: 24px; }

  .others { display: grid; grid-template-columns: 1fr; gap: 20px; }
  @media (min-width: 640px) { .others { grid-template-columns: repeat(2, 1fr); } }
  @media (min-width: 1080px) { .others { grid-template-columns: repeat(3, 1fr); } }
  .other {
    display: flex; flex-direction: column; border-radius: var(--radius); overflow: hidden; background: var(--surface);
    text-decoration: none; color: var(--ink); min-width: 0;
    box-shadow: 0 1px 2px rgba(29, 29, 31, 0.04), 0 12px 32px -12px rgba(29, 29, 31, 0.12);
    transition: transform 500ms var(--ease), box-shadow 500ms var(--ease);
  }
  .other:hover { transform: translateY(-4px); box-shadow: 0 1px 2px rgba(29, 29, 31, 0.04), 0 24px 48px -16px rgba(29, 29, 31, 0.18); }
  .other-media { aspect-ratio: 16 / 10; overflow: hidden; background: #dcdce2; }
  .other-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
  .other:hover .other-media img { transform: scale(1.04); }
  .other-body { display: flex; flex-direction: column; gap: 8px; padding: 22px 22px 24px; flex: 1; }
  .other-body h3 { min-height: 2.4em; }
  .other-body h3 { font-size: 19px; letter-spacing: -0.02em; line-height: 1.2; }
  .other-body .link { margin-top: auto; padding-top: 6px; font-size: 15px; }