:root {
  --bg: #f9f8f8;
  --ink: #1e232c;
  --ink-deep: #152443;
  --ink-soft: rgba(21, 36, 67, 0.66);
  --blue: #4176e6;
  --blue-soft: #9cc1e7;
  --blue-wash: #eaf1fb;
  --line: rgba(9, 45, 78, 0.12);
  --line-strong: rgba(9, 45, 78, 0.2);
  --glass: rgba(255, 255, 255, 0.42);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --radius: 24px;
  --shadow: 0 24px 60px rgba(31, 63, 112, 0.1);
  --font: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button, textarea { font: inherit; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-shell { width: 100%; overflow: clip; }

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  padding: 10px 24px;
  transition: background 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(249, 248, 248, 0.78);
  backdrop-filter: saturate(160%) blur(16px);
  box-shadow: 0 1px 0 rgba(9, 45, 78, 0.08);
}

.header-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-deep); }
.brand-logo { width: 143px; height: auto; }

.desktop-nav { display: flex; align-items: center; gap: 26px; }
.desktop-nav a {
  font-size: 14px;
  color: rgba(21, 36, 67, 0.72);
  transition: color 0.2s ease;
}
.desktop-nav a:hover { color: var(--ink-deep); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-link {
  font-size: 14px;
  padding: 9px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.header-link:hover { background: #fff; border-color: var(--line-strong); }

.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span { display: block; width: 16px; height: 1.5px; background: var(--ink-deep); transition: transform 0.2s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.mobile-menu {
  margin: 8px auto 0;
  width: min(1180px, 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  padding: 10px;
  box-shadow: var(--shadow);
}
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu a { padding: 12px 14px; font-size: 15px; border-radius: 12px; }
.mobile-menu a:hover { background: var(--blue-wash); }

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 112px 24px 64px;
  overflow: hidden;
  background:
    radial-gradient(58% 62% at 12% 0%, rgba(190, 210, 244, 0.62), transparent 70%),
    radial-gradient(42% 48% at 88% 8%, rgba(226, 232, 252, 0.72), transparent 74%),
    linear-gradient(180deg, #f3f6fc 0%, var(--bg) 72%);
}

.hero-glow {
  position: absolute;
  inset: -10% -10% auto;
  height: 80%;
  background:
    radial-gradient(46% 52% at 22% 28%, rgba(255, 255, 255, 0.7), transparent 70%),
    radial-gradient(40% 55% at 78% 18%, rgba(191, 219, 247, 0.62), transparent 72%);
  pointer-events: none;
}

.flow-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.7;
  mask-image: linear-gradient(#000 0%, rgba(0, 0, 0, 0.72) 36%, transparent 92%);
  -webkit-mask-image: linear-gradient(#000 0%, rgba(0, 0, 0, 0.72) 36%, transparent 92%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1040px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 22px;
}

.announcement, .hero-title, .hero-subtitle { max-width: 860px; }

.announcement {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 660px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(21, 36, 67, 0.68);
  transition: color 0.2s ease;
}
.announcement:hover { color: var(--ink-deep); }
.sparkle { width: 14px; height: 14px; flex: none; }
.announcement-arrow { flex: none; opacity: 0.7; }

.hero-title {
  margin: 4px 0 0;
  font-size: clamp(34px, 3.6vw, 48px);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: var(--ink-deep);
}

.hero-subtitle {
  margin: -8px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(21, 36, 67, 0.68);
}

/* Hero entry cards */
.entry-grid {
  width: 100%;
  max-width: 920px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 12px auto 0;
}

.entry-card {
  position: relative;
  min-height: 252px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 11px;
  padding: 32px 28px;
  border-radius: 26px;
  overflow: hidden;
  text-align: center;
  isolation: isolate;
  transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
}

.entry-chat {
  color: #fff;
  background:
    radial-gradient(58% 52% at 50% -6%, rgba(255, 255, 255, 0.2), transparent 72%),
    linear-gradient(180deg, #4b5afc 0%, #4050f2 100%);
  box-shadow: 0 26px 60px rgba(64, 80, 242, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}
.entry-chat:hover {
  transform: translateY(-4px);
  box-shadow: 0 34px 70px rgba(64, 80, 242, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.entry-orbit {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  pointer-events: none;
}

.entry-label, .entry-title-row, .entry-caption, .entry-platforms { position: relative; z-index: 1; }
.entry-orbit-a { width: 380px; height: 380px; left: -190px; bottom: -230px; }
.entry-orbit-b { width: 230px; height: 230px; right: -115px; top: -135px; background: rgba(255, 255, 255, 0.05); }

.entry-download {
  color: var(--ink-deep);
  background:
    radial-gradient(52% 44% at 50% 112%, rgba(196, 201, 250, 0.5), transparent 74%),
    radial-gradient(34% 38% at 84% 96%, rgba(218, 227, 241, 0.55), transparent 76%),
    #fbfcfe;
  border: 1px solid rgba(31, 37, 60, 0.07);
  box-shadow: 0 22px 54px rgba(31, 63, 112, 0.08);
  cursor: pointer;
}
.entry-download:hover {
  transform: translateY(-4px);
  background-color: #fff;
  box-shadow: 0 30px 64px rgba(31, 63, 112, 0.12);
}

.entry-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.74;
}
.entry-download .entry-label { color: #616672; opacity: 1; }

.entry-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  line-height: 1;
}

.entry-title {
  font-size: clamp(36px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: inherit;
}
.entry-arrow { flex: none; opacity: 0.72; transition: transform 0.25s ease, opacity 0.25s ease; }
.entry-chat:hover .entry-arrow { transform: translate(2px, -2px); opacity: 1; }

.entry-download-link {
  position: static;
  display: inline-block;
  padding-block: 2px;
  color: var(--ink-deep);
  transition: color 0.2s ease;
}
.entry-download-link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
}
.entry-download-link:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; border-radius: 4px; }
.entry-download:hover .entry-download-link { color: var(--blue); }
.entry-download:hover .entry-arrow { transform: translate(2px, -2px); opacity: 1; }

.entry-caption {
  max-width: 430px;
  font-size: 16px;
  line-height: 1.65;
  opacity: 0.76;
}
.entry-download .entry-caption { color: #5c6880; opacity: 1; }

.entry-platforms {
  margin-top: 4px;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: rgba(31, 37, 60, 0.42);
  text-transform: uppercase;
}

.hero-api-link {
  margin: 4px 0 0;
  font-size: 13px;
  color: rgba(21, 36, 67, 0.55);
}
.hero-api-link a {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--blue);
  font-weight: 500;
}
.hero-api-link a:hover { color: #2f5fd0; }

/* Shared sections */
.section {
  width: min(1160px, 100%);
  margin: 0 auto;
  padding: 104px 24px;
}

.section-head { max-width: 720px; margin-bottom: 42px; }
.eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
}

.section h2 {
  margin: 0;
  font-size: clamp(28px, 3.1vw, 42px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.section-lead {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* Capabilities */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  position: relative;
  padding: 30px 28px 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -55% 30%;
  height: 180px;
  background: radial-gradient(circle, rgba(156, 193, 231, 0.34), transparent 68%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.feature-card:hover::after { opacity: 1; }
.feature-index { display: block; margin-bottom: 38px; font-size: 12px; letter-spacing: 0.16em; color: rgba(65, 118, 230, 0.8); }
.feature-card h3 { margin: 0 0 12px; font-size: 21px; font-weight: 500; color: var(--ink-deep); }
.feature-card p { margin: 0; font-size: 15px; line-height: 1.8; color: var(--ink-soft); }

/* Harness */
.harness {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 56px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}

.check-list { list-style: none; margin: 34px 0 0; padding: 0; display: grid; gap: 20px; }
.check-list li { display: grid; gap: 4px; padding-left: 26px; position: relative; }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid var(--blue);
  box-shadow: inset 0 0 0 2px #fff;
  background: var(--blue);
}
.check-list strong { font-size: 15px; font-weight: 600; color: var(--ink-deep); }
.check-list span { font-size: 14px; line-height: 1.75; color: var(--ink-soft); }

.harness-visual { position: relative; }
.harness-visual::before {
  content: "";
  position: absolute;
  inset: 8% -6% -8% 12%;
  border-radius: 32px;
  background: linear-gradient(150deg, rgba(156, 193, 231, 0.42), rgba(234, 241, 251, 0.9));
  transform: rotate(-3deg);
}

.app-window {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(9, 45, 78, 0.12);
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(31, 63, 112, 0.16);
  overflow: hidden;
}
.app-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(9, 45, 78, 0.16); }
.app-title { margin-left: 8px; font-size: 12px; color: rgba(21, 36, 67, 0.6); }
.app-tabs { display: flex; gap: 18px; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 12px; color: rgba(21, 36, 67, 0.48); }
.app-tabs .is-active { color: var(--ink-deep); font-weight: 600; }
.app-body { display: grid; grid-template-columns: 128px 1fr; min-height: 260px; }
.app-side { border-right: 1px solid var(--line); padding: 14px 12px; display: grid; align-content: start; gap: 9px; font-size: 11px; color: rgba(21, 36, 67, 0.5); }
.side-label { color: rgba(21, 36, 67, 0.34); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.app-main { padding: 18px; display: grid; align-content: start; gap: 14px; }
.app-prompt { margin: 0; padding: 12px 14px; border-radius: 12px; background: var(--blue-wash); font-size: 13px; line-height: 1.6; color: var(--ink-deep); }
.app-status { display: inline-flex; align-items: center; gap: 7px; font-size: 11px; color: var(--blue); }
.pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px rgba(65, 118, 230, 0.14); animation: pulse 1.8s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(65, 118, 230, 0.03); } }
.app-result { padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 12px; line-height: 1.65; color: var(--ink-soft); }
.app-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.app-tags span { padding: 4px 9px; border-radius: 999px; background: rgba(65, 118, 230, 0.08); color: rgba(21, 36, 67, 0.62); font-size: 10px; }

/* Models */
.models { background: linear-gradient(180deg, transparent, rgba(234, 241, 251, 0.5) 28%, transparent); }
.model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.model-card {
  padding: 26px 24px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  min-height: 150px;
}
.model-card h3 { margin: 0 0 10px; font-size: 17px; font-weight: 600; color: var(--ink-deep); }
.model-card p { margin: 0; font-size: 14px; line-height: 1.75; color: var(--ink-soft); }
.model-card.is-featured { background: var(--ink-deep); border-color: var(--ink-deep); color: #fff; }
.model-card.is-featured h3 { color: #fff; }
.model-card.is-featured p { color: rgba(255, 255, 255, 0.7); }
.model-badge { display: inline-block; margin-bottom: 18px; padding: 4px 10px; border-radius: 999px; background: rgba(255, 255, 255, 0.16); font-size: 11px; letter-spacing: 0.08em; }

/* Platforms */
.platform-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.platform-card { padding: 24px 20px; border-radius: 18px; border: 1px solid var(--line); background: #fff; }
.platform-tag { display: inline-block; margin-bottom: 30px; padding: 4px 9px; border-radius: 8px; background: var(--blue-wash); color: var(--blue); font-size: 11px; font-weight: 600; }
.platform-card h3 { margin: 0 0 10px; font-size: 16px; font-weight: 600; color: var(--ink-deep); }
.platform-card p { margin: 0; font-size: 13px; line-height: 1.7; color: var(--ink-soft); }

/* API */
.api { padding-top: 40px; }
.api-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  padding: 52px;
  border-radius: 28px;
  background: linear-gradient(135deg, #eaf1fb, #dbe8f9 58%, #eef4fb);
  border: 1px solid rgba(65, 118, 230, 0.14);
}
.api-links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-content: start; }
.api-link {
  display: grid;
  gap: 3px;
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: background 0.2s ease, transform 0.2s ease;
}
.api-link:hover { background: #fff; transform: translateY(-2px); }
.api-link span { font-size: 14px; font-weight: 600; color: var(--ink-deep); }
.api-link em { font-style: normal; font-size: 11px; color: rgba(21, 36, 67, 0.5); word-break: break-all; }

/* FAQ */
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 34px 22px 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink-deep);
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 300;
  color: var(--blue);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { margin: -6px 0 24px; max-width: 840px; font-size: 15px; line-height: 1.85; color: var(--ink-soft); }

/* Footer */
.site-footer { background: #f2f1ef; margin-top: 40px; padding: 76px 24px 40px; }
.footer-inner { width: min(1160px, 100%); margin: 0 auto; }
.footer-top { display: flex; gap: 72px; justify-content: space-between; }
.footer-brand { max-width: 250px; flex: none; display: grid; align-content: start; gap: 20px; }
.footer-logo { width: 143px; height: auto; color: var(--blue); }
.footer-slogan { margin: 0; font-size: 13px; letter-spacing: 0.28em; color: rgba(21, 36, 67, 0.46); }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 32px; height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(9, 45, 78, 0.12);
  background: rgba(255, 255, 255, 0.6);
  opacity: 0.72;
  transition: opacity 0.2s ease, background 0.2s ease;
}
.footer-social a:hover { opacity: 1; background: #fff; }
.footer-social img { width: 15px; height: 15px; }

.footer-columns { flex: 1; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.footer-column { display: grid; align-content: start; gap: 10px; }
.footer-column h3 { margin: 0 0 6px; font-size: 13px; font-weight: 600; color: var(--ink-deep); }
.footer-column a { font-size: 13px; color: rgba(21, 36, 67, 0.6); transition: color 0.2s ease; }
.footer-column a:hover { color: var(--ink-deep); }

.footer-qr { margin-top: 12px; display: grid; gap: 8px; }
.footer-qr img { width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 4px; }
.footer-qr span { font-size: 11px; color: rgba(21, 36, 67, 0.5); }

.footer-bottom {
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid rgba(9, 45, 78, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
}
.footer-bottom p { margin: 0; font-size: 11px; color: rgba(21, 36, 67, 0.46); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .desktop-nav { gap: 18px; }
  .platform-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-top { gap: 40px; }
}

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-link { display: none; }
  .hero { min-height: auto; padding-top: 104px; }
  .entry-grid { max-width: 520px; grid-template-columns: 1fr; gap: 16px; margin-inline: auto; }
  .entry-card { min-height: 236px; }
  .entry-title { font-size: 42px; }
  .harness { grid-template-columns: 1fr; gap: 46px; }
  .api-panel { grid-template-columns: 1fr; gap: 30px; padding: 40px; }
  .capability-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { flex-direction: column; gap: 42px; }
  .footer-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .site-header { padding: 8px 16px; }
  .brand-logo { width: 124px; }
  .hero { padding: 96px 16px 56px; }
  .hero-title { font-size: 32px; letter-spacing: 0.26em; text-indent: 0.26em; }
  .hero-subtitle { font-size: 14px; }
  .announcement { font-size: 12px; line-height: 1.7; }
  .entry-grid { max-width: none; margin-top: 8px; }
  .entry-card { min-height: 212px; padding: 26px 18px; border-radius: 22px; gap: 9px; }
  .entry-label { font-size: 10.5px; letter-spacing: 0.12em; }
  .entry-title { font-size: 38px; }
  .entry-arrow { width: 18px; height: 18px; }
  .entry-caption { font-size: 13.5px; line-height: 1.55; }
  .entry-platforms { font-size: 9.5px; letter-spacing: 0.07em; }
  .hero-api-link { font-size: 12px; }
  .section { padding: 76px 18px; }
  .section-head { margin-bottom: 32px; }
  .model-grid, .platform-grid { grid-template-columns: 1fr; }
  .api-panel { padding: 28px 22px; border-radius: 22px; }
  .api-links { grid-template-columns: 1fr; }
  .footer-columns { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .site-footer { padding: 60px 18px 32px; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .flow-canvas { display: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .pulse { animation: none; }
}