:root {
  --bg: #071019;
  --bg-deep: #04090f;
  --surface: rgba(15, 27, 40, .72);
  --surface-strong: rgba(16, 30, 45, .92);
  --line: rgba(175, 202, 225, .13);
  --line-strong: rgba(175, 202, 225, .24);
  --text: #f3f7fb;
  --muted: #9eacba;
  --subtle: #748494;
  --blue: #78b6e4;
  --blue-bright: #a8d9f7;
  --green: #77d5ad;
  --red: #f18b8b;
  --container: 1240px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; background: var(--bg); }
html, body { margin: 0; min-height: 100%; }
body {
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 77% 4%, rgba(44, 101, 141, .13), transparent 28%),
    radial-gradient(circle at 13% 45%, rgba(41, 84, 116, .08), transparent 24%),
    linear-gradient(180deg, #071019 0%, #07111b 56%, #050b12 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .36;
  background-image:
    linear-gradient(rgba(174, 202, 225, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(174, 202, 225, .028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, black, transparent 90%);
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 4px; }

.page { min-height: 100vh; position: relative; z-index: 1; }
.page::before { display: none !important; }

header {
  position: sticky !important;
  z-index: 50 !important;
  top: 0;
  min-height: 82px;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 28px !important;
  padding: 0 max(24px, calc((100vw - var(--container)) / 2)) !important;
  border-bottom: 1px solid var(--line) !important;
  background: rgba(6, 14, 22, .78) !important;
  backdrop-filter: blur(18px) saturate(135%);
}

.brand {
  display: inline-flex !important;
  align-items: center;
  gap: 13px;
  flex: 0 0 auto;
  color: var(--text) !important;
  font-size: inherit !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.brand-mark {
  width: 30px;
  height: 30px;
  position: relative;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(129, 190, 232, .18), rgba(129, 190, 232, .025));
  box-shadow: inset 0 1px rgba(255, 255, 255, .06);
}
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(169, 218, 247, .72); }
.brand-mark::before { width: 14px; height: 14px; }
.brand-mark::after { width: 4px; height: 4px; background: var(--blue-bright); box-shadow: 0 0 12px var(--blue); }
.brand-copy { display: grid; gap: 2px; }
.brand-name { font-size: 12px; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; }
.brand-region { font-size: 9px; color: var(--subtle); letter-spacing: .18em; text-transform: uppercase; }

.topbar { display: flex !important; align-items: center !important; gap: 18px !important; flex-wrap: nowrap !important; }
.nav { display: flex !important; align-items: center; gap: 28px !important; flex-wrap: nowrap !important; }
.nav a {
  min-height: auto !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  color: var(--muted) !important;
  font-size: 12px !important;
  font-weight: 520;
  letter-spacing: .02em !important;
  text-transform: none !important;
  transition: color .2s ease;
}
.nav a:hover { color: var(--text) !important; background: transparent !important; }
.nav a.access-nav {
  min-height: 42px !important;
  padding: 0 17px !important;
  border: 1px solid var(--line-strong) !important;
  border-radius: 999px;
  background: rgba(15, 28, 41, .62) !important;
  color: var(--text) !important;
}
.nav a.access-nav:hover { background: rgba(24, 43, 60, .8) !important; border-color: rgba(174, 217, 245, .4) !important; }

.lang-switch {
  display: flex !important;
  padding: 3px;
  border: 1px solid var(--line) !important;
  border-radius: 999px;
  background: rgba(12, 23, 34, .62) !important;
  backdrop-filter: none !important;
}
.lang-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-width: 42px !important;
  min-height: 34px !important;
  padding: 0 9px !important;
  border: 0 !important;
  border-radius: 999px;
  color: var(--subtle) !important;
  background: transparent !important;
  font-size: 11px !important;
  font-weight: 650;
  letter-spacing: 0 !important;
  text-transform: none !important;
}
.lang-btn.active { color: var(--text) !important; background: rgba(129, 190, 232, .12) !important; }

[data-lang] { display: none !important; }
html[data-ui-lang="en"] [data-lang="en"] { display: revert !important; }
html[data-ui-lang="zh"] [data-lang="zh"] { display: revert !important; }
html[data-ui-lang="en"] a[data-lang="en"], html[data-ui-lang="zh"] a[data-lang="zh"],
html[data-ui-lang="en"] span[data-lang="en"], html[data-ui-lang="zh"] span[data-lang="zh"] { display: inline-flex !important; }

/* Infrastructure */
.infrastructure-page .layout {
  width: min(calc(100% - 48px), var(--container)) !important;
  margin: 0 auto !important;
  padding: 72px 0 116px !important;
  display: grid !important;
  grid-template-columns: 210px minmax(0, 1fr) !important;
  align-items: start;
  gap: 64px !important;
}

.infrastructure-page .toc { position: sticky !important; top: 126px !important; padding: 0 !important; }
.infrastructure-page .toc-card {
  padding: 20px !important;
  border: 1px solid var(--line) !important;
  border-radius: 18px;
  background: rgba(10, 20, 30, .58) !important;
  backdrop-filter: blur(14px);
}
.infrastructure-page .toc-label { margin: 0 0 14px !important; color: var(--subtle) !important; font-size: 9px !important; font-weight: 650; letter-spacing: .16em !important; text-transform: uppercase; }
.infrastructure-page .toc-links { display: grid !important; gap: 4px !important; }
.infrastructure-page .toc-link {
  position: relative;
  min-height: 38px !important;
  display: flex !important;
  align-items: center;
  padding: 0 12px !important;
  border: 0 !important;
  border-radius: 999px;
  background: transparent !important;
  color: var(--muted) !important;
  font-size: 11px !important;
  letter-spacing: .01em !important;
  text-transform: none !important;
}
.infrastructure-page .toc-link:hover { color: var(--text) !important; background: rgba(129, 190, 232, .06) !important; }
.infrastructure-page .toc-link.active { color: var(--text) !important; background: rgba(129, 190, 232, .1) !important; }
.infrastructure-page .toc-link.active::before { content: ""; position: absolute; left: 0; width: 2px; height: 15px; border-radius: 2px; background: var(--blue-bright); }
.infrastructure-page .content { min-width: 0; display: grid; gap: 104px !important; }

.infrastructure-page .intro {
  position: relative;
  display: grid !important;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr) !important;
  align-items: end;
  gap: 56px !important;
  padding: 54px 0 18px !important;
  border: 0 !important;
}
.infrastructure-page .intro::after { content: ""; position: absolute; right: 0; top: 8px; width: 270px; height: 270px; border: 1px solid rgba(120, 182, 228, .08); border-radius: 50%; box-shadow: 0 0 0 46px rgba(120, 182, 228, .018), 0 0 0 92px rgba(120, 182, 228, .012); pointer-events: none; }
.infrastructure-page .kicker { margin: 0 0 17px !important; color: var(--blue) !important; font-size: 10px !important; font-weight: 660 !important; letter-spacing: .16em !important; text-transform: uppercase !important; }
.infrastructure-page h1 {
  position: relative;
  z-index: 1;
  max-width: 10ch;
  margin: 0 !important;
  font-size: clamp(48px, 6.1vw, 82px) !important;
  line-height: 1 !important;
  letter-spacing: -.052em !important;
  font-weight: 580 !important;
  text-wrap: balance;
}
.infrastructure-page .intro-copy { position: relative; z-index: 1; margin: 0 !important; max-width: 46ch !important; color: var(--muted) !important; font-size: 14px !important; line-height: 1.8 !important; }

.infrastructure-page .summary {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 12px !important;
  padding: 0 !important;
  border: 0 !important;
  margin-top: -66px;
}
.infrastructure-page .summary-item {
  min-height: 132px;
  padding: 22px !important;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, rgba(16, 30, 44, .74), rgba(9, 18, 27, .68)) !important;
}
.infrastructure-page .summary-label, .infrastructure-page .card-label { color: var(--subtle) !important; font-size: 9px !important; font-weight: 650; letter-spacing: .13em !important; text-transform: uppercase !important; }
.infrastructure-page .summary-value { margin-top: 18px !important; color: var(--text) !important; font-size: 14px !important; line-height: 1.5 !important; font-weight: 560 !important; }

.infrastructure-page .image-gallery { display: grid !important; grid-template-columns: 1.15fr .85fr !important; gap: 16px !important; margin: 0 !important; }
.infrastructure-page .image-card {
  overflow: hidden;
  min-width: 0;
  padding: 0 !important;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(16, 30, 44, .76), rgba(9, 18, 27, .7)) !important;
  transition: transform .25s ease, border-color .25s ease;
}
.infrastructure-page .image-card:first-child { grid-row: span 2; }
.infrastructure-page .image-card:hover { transform: translateY(-3px); border-color: rgba(166, 210, 238, .25) !important; }
.infrastructure-page .image-card img { width: 100% !important; height: 240px !important; display: block; object-fit: cover !important; border: 0 !important; border-bottom: 1px solid var(--line) !important; background: #091520; }
.infrastructure-page .image-card:first-child img { height: 438px !important; }
.infrastructure-page .image-caption { padding: 24px !important; border: 0 !important; }
.infrastructure-page .image-title { margin: 0 !important; color: var(--text) !important; font-size: 18px !important; font-weight: 570 !important; letter-spacing: -.02em !important; }
.infrastructure-page .image-copy { margin: 10px 0 0 !important; color: var(--muted) !important; font-size: 12px !important; line-height: 1.7 !important; }

.infrastructure-page .section { padding: 0 !important; border: 0 !important; }
.infrastructure-page .section-head { display: grid !important; grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr) !important; align-items: end !important; gap: 52px !important; margin-bottom: 36px !important; }
.infrastructure-page .section-title { margin: 0 !important; max-width: 13ch; color: var(--text) !important; font-size: clamp(34px, 4.4vw, 56px) !important; line-height: 1.08 !important; letter-spacing: -.04em !important; font-weight: 570 !important; text-wrap: balance; }
.infrastructure-page .section-copy { margin: 0 !important; max-width: 50ch !important; color: var(--muted) !important; font-size: 13px !important; line-height: 1.75 !important; }
.infrastructure-page .cards { display: grid !important; grid-template-columns: repeat(3, 1fr) !important; gap: 14px !important; }
.infrastructure-page .card, .infrastructure-page .band-panel, .infrastructure-page .assurance-item {
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(16, 30, 44, .72), rgba(9, 18, 27, .66)) !important;
  box-shadow: inset 0 1px rgba(255,255,255,.025);
}
.infrastructure-page .card { min-height: 280px !important; padding: 28px !important; }
.infrastructure-page .card-title { margin: 24px 0 0 !important; color: var(--text) !important; font-size: 21px !important; line-height: 1.25 !important; letter-spacing: -.025em !important; font-weight: 570 !important; }
.infrastructure-page .card-copy { margin: 14px 0 0 !important; color: var(--muted) !important; font-size: 13px !important; line-height: 1.75 !important; }
.infrastructure-page .grid-band { display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 16px !important; }
.infrastructure-page .band-panel { padding: 30px !important; }
.infrastructure-page .signal-list { margin-top: 24px !important; display: grid !important; gap: 0 !important; }
.infrastructure-page .signal-item { display: grid !important; grid-template-columns: 110px minmax(0,1fr) !important; gap: 18px !important; padding: 18px 0 !important; border-top: 1px solid var(--line) !important; }
.infrastructure-page .signal-key { color: var(--blue-bright) !important; font-size: 10px !important; font-weight: 620 !important; letter-spacing: .02em !important; text-transform: none !important; }
.infrastructure-page .signal-copy { color: var(--muted) !important; font-size: 12px !important; line-height: 1.7 !important; }
.infrastructure-page .stack { display: flex !important; flex-direction: column; gap: 24px !important; }
.infrastructure-page .matrix { display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 10px !important; }
.infrastructure-page .matrix-item { padding: 16px !important; border: 1px solid rgba(175, 202, 225, .09) !important; border-radius: 11px; background: rgba(5, 13, 20, .3) !important; }
.infrastructure-page .matrix-item strong { display: block !important; color: var(--text) !important; font-size: 12px !important; font-weight: 590 !important; }
.infrastructure-page .matrix-item span { display: block !important; margin-top: 8px !important; color: var(--subtle) !important; font-size: 10px !important; line-height: 1.6 !important; }
.infrastructure-page .assurance { display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 14px !important; }
.infrastructure-page .assurance-item { min-height: 220px !important; padding: 28px !important; }
.infrastructure-page .assurance-value { margin-top: 22px !important; color: var(--text) !important; font-size: 19px !important; font-weight: 570 !important; letter-spacing: -.02em !important; }
.infrastructure-page .assurance-copy { margin-top: 12px !important; color: var(--muted) !important; font-size: 12px !important; line-height: 1.72 !important; }

/* Private access */
.access-page .page { display: grid !important; grid-template-rows: auto 1fr auto !important; }
.access-page main {
  width: min(calc(100% - 48px), var(--container)) !important;
  margin: 0 auto !important;
  display: grid !important;
  place-items: center !important;
  padding: 72px 0 96px !important;
}
.access-page .panel {
  width: min(100%, 1080px) !important;
  padding: 0 !important;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(15, 29, 42, .8), rgba(7, 16, 24, .78)) !important;
  overflow: hidden;
  box-shadow: 0 34px 110px rgba(0, 0, 0, .38);
  transition: width .3s ease;
}
.access-page.unlocked .panel { width: 100% !important; }
.access-gate { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr); min-height: 530px; }
.access-copy { padding: clamp(38px, 6vw, 70px); display: flex; flex-direction: column; justify-content: center; }
.access-page .kicker { margin: 0 0 18px !important; color: var(--blue) !important; font-size: 10px !important; font-weight: 660 !important; letter-spacing: .16em !important; text-transform: uppercase !important; }
.access-page h1 { max-width: 10ch; margin: 0 !important; color: var(--text) !important; font-size: clamp(46px, 5.4vw, 72px) !important; line-height: 1 !important; letter-spacing: -.05em !important; font-weight: 580 !important; }
.access-page .lede { max-width: 54ch !important; margin: 22px 0 0 !important; color: var(--muted) !important; font-size: 14px !important; line-height: 1.78 !important; }
.access-page .form { width: 100%; max-width: 610px !important; margin-top: 30px !important; display: grid !important; grid-template-columns: minmax(0,1fr) auto !important; gap: 10px !important; }
.access-page input {
  width: 100%;
  min-height: 50px !important;
  padding: 0 16px !important;
  border: 1px solid var(--line-strong) !important;
  border-radius: 999px !important;
  background: rgba(4, 11, 17, .68) !important;
  color: var(--text) !important;
  outline: none;
}
.access-page input:focus { border-color: rgba(168, 217, 247, .52) !important; box-shadow: 0 0 0 3px rgba(120, 182, 228, .08); }
.access-page button.primary, .access-page .copy-btn {
  min-height: 42px !important;
  padding: 0 17px !important;
  border: 1px solid rgba(215, 239, 252, .72) !important;
  border-radius: 999px !important;
  color: #07111a !important;
  background: linear-gradient(180deg, #c8e5f6, #94c8e8) !important;
  font-size: 11px !important;
  font-weight: 650 !important;
  letter-spacing: .02em !important;
  text-transform: none !important;
  transition: transform .2s ease, background .2s ease;
}
.access-page button.primary { min-height: 50px !important; padding-inline: 22px !important; }
.access-page button.primary:hover, .access-page .copy-btn:hover { transform: translateY(-1px); background: linear-gradient(180deg, #daf0fb, #a8d5ee) !important; }
.access-page .message { min-height: 22px !important; margin-top: 14px !important; color: var(--blue-bright) !important; font-size: 12px !important; }

.vault-visual { position: relative; overflow: hidden; display: grid; place-items: center; border-left: 1px solid var(--line); background: radial-gradient(circle at 50% 45%, rgba(60, 128, 170, .15), transparent 48%), rgba(4, 11, 17, .26); }
.vault-visual::before, .vault-visual::after { content: ""; position: absolute; width: 280px; height: 280px; border: 1px solid rgba(140, 201, 236, .09); border-radius: 50%; }
.vault-visual::after { width: 380px; height: 380px; border-style: dashed; animation: orbit 28s linear infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }
.vault-core { position: relative; z-index: 2; width: 150px; height: 150px; display: grid; place-items: center; border: 1px solid rgba(168, 217, 247, .24); border-radius: 50%; background: radial-gradient(circle at 35% 28%, rgba(64, 128, 168, .44), rgba(10, 27, 40, .92)); box-shadow: 0 0 80px rgba(58, 127, 170, .18), inset -25px -18px 40px rgba(1, 7, 12, .4); }
.vault-core svg { width: 52px; height: 52px; color: var(--blue-bright); }
.vault-status { position: absolute; z-index: 3; left: 32px; right: 32px; bottom: 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 15px 16px; border: 1px solid var(--line); border-radius: 11px; background: rgba(5, 14, 22, .7); color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.vault-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px rgba(119, 213, 173, .7); }

.access-page .result { display: none !important; margin: 0 !important; padding: 34px !important; border-top: 1px solid var(--line) !important; background: rgba(4, 11, 17, .28); }
.access-page .result.visible { display: block !important; }
.access-page.unlocked .access-gate { min-height: auto; grid-template-columns: 1fr; }
.access-page.unlocked .access-copy { padding: 38px 34px 28px; }
.access-page.unlocked .access-copy h1 { max-width: none; font-size: 34px !important; }
.access-page.unlocked .access-copy .lede { margin-top: 12px !important; }
.access-page.unlocked .access-copy .form { margin-top: 20px !important; }
.access-page.unlocked .vault-visual { display: none; }
.access-page .quick-links { display: grid !important; grid-template-columns: repeat(2, minmax(0,1fr)) !important; gap: 12px !important; }
.access-page .quick-card, .access-page .node, .access-page .limit-panel {
  min-width: 0;
  padding: 18px !important;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, rgba(16, 30, 44, .72), rgba(9, 18, 27, .66)) !important;
}
.access-page .label { color: var(--subtle) !important; font-size: 9px !important; font-weight: 650 !important; letter-spacing: .13em !important; text-transform: uppercase !important; }
.access-page .url { margin-top: 12px !important; color: var(--blue-bright) !important; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11px !important; line-height: 1.65 !important; word-break: break-all; }
.access-page .quick-card .copy-btn { margin-top: 16px; }
.access-page .limit-panel { margin-top: 14px !important; }
.access-page .limit-head { display: flex !important; justify-content: space-between !important; align-items: center !important; gap: 16px !important; }
.access-page .limit-title { color: var(--text) !important; font-size: 15px !important; font-weight: 580 !important; }
.access-page .limit-current { display: inline-flex; align-items: center; min-height: 30px; padding: 0 10px; border: 1px solid rgba(119, 213, 173, .18); border-radius: 999px; color: var(--green) !important; background: rgba(119, 213, 173, .06); font-size: 11px !important; font-weight: 620; }
.access-page .limit-controls { display: flex !important; align-items: center !important; gap: 8px !important; flex-wrap: wrap !important; margin-top: 18px !important; }
.access-page .rate-btn {
  min-height: 38px !important;
  padding: 0 12px !important;
  border: 1px solid var(--line) !important;
  border-radius: 999px;
  background: rgba(4, 11, 17, .48) !important;
  color: var(--muted) !important;
  font-size: 11px !important;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.access-page .rate-btn:hover { color: var(--text) !important; border-color: rgba(168, 217, 247, .34) !important; background: rgba(14, 30, 43, .72) !important; }
.access-page .limit-controls :disabled { cursor: wait; opacity: .5; }
.access-page .limit-feedback { min-height: 20px; margin-top: 12px; color: var(--subtle); font-size: 11px; line-height: 1.6; }
.access-page .limit-feedback[data-state="pending"] { color: var(--blue-bright); }
.access-page .limit-feedback[data-state="success"] { color: var(--green); }
.access-page .limit-feedback[data-state="error"] { color: #f2adad; }
.access-page .rate-input { min-height: 38px !important; max-width: 126px !important; font-size: 12px !important; }
.access-page .nodes { display: grid !important; grid-template-columns: repeat(2, minmax(0,1fr)) !important; gap: 12px !important; margin-top: 14px !important; }
.access-page .node-head { display: flex !important; align-items: center !important; justify-content: space-between !important; gap: 16px !important; }
.access-page .node-name { color: var(--text) !important; font-size: 13px !important; font-weight: 580 !important; }

footer {
  width: min(calc(100% - 48px), var(--container)) !important;
  min-height: 96px;
  margin: 0 auto !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 24px !important;
  border-top: 1px solid var(--line) !important;
  color: var(--subtle) !important;
  font-size: 9px !important;
  letter-spacing: .12em !important;
  text-transform: uppercase !important;
}

@media (max-width: 1040px) {
  .infrastructure-page .layout { grid-template-columns: 170px minmax(0,1fr) !important; gap: 36px !important; }
  .infrastructure-page .summary { grid-template-columns: repeat(2,1fr) !important; }
  .infrastructure-page .cards { grid-template-columns: 1fr !important; }
  .infrastructure-page .card { min-height: auto !important; }
  .infrastructure-page .image-gallery { grid-template-columns: 1fr !important; }
  .infrastructure-page .image-card:first-child { grid-row: auto; }
  .infrastructure-page .image-card img, .infrastructure-page .image-card:first-child img { height: 300px !important; }
}

@media (max-width: 820px) {
  header { min-height: 72px; padding-inline: 16px !important; }
  .brand-region { display: none; }
  .topbar { gap: 10px !important; }
  .nav { gap: 18px !important; }
  .nav a:not(.access-nav):not(:first-child) { display: none !important; }
  .infrastructure-page .layout { width: min(calc(100% - 32px), var(--container)) !important; grid-template-columns: 1fr !important; padding-top: 38px !important; }
  .infrastructure-page .toc { position: static !important; overflow-x: auto; margin-inline: -16px; padding-inline: 16px !important; }
  .infrastructure-page .toc-card { min-width: max-content; padding: 7px !important; }
  .infrastructure-page .toc-label { display: none !important; }
  .infrastructure-page .toc-links { display: flex !important; gap: 4px !important; }
  .infrastructure-page .toc-link { padding-inline: 14px !important; }
  .infrastructure-page .content { gap: 78px !important; }
  .infrastructure-page .intro, .infrastructure-page .section-head { grid-template-columns: 1fr !important; align-items: start !important; gap: 24px !important; }
  .infrastructure-page .intro { padding-top: 26px !important; }
  .infrastructure-page .intro::after { display: none; }
  .infrastructure-page .summary { margin-top: -40px; }
  .infrastructure-page .grid-band, .infrastructure-page .assurance { grid-template-columns: 1fr !important; }
  .access-page main { width: min(calc(100% - 32px), var(--container)) !important; padding: 44px 0 72px !important; }
  .access-gate { grid-template-columns: 1fr; }
  .access-copy { padding: 46px 34px 36px; }
  .vault-visual { min-height: 340px; border-left: 0; border-top: 1px solid var(--line); }
  .access-page .quick-links, .access-page .nodes { grid-template-columns: 1fr !important; }
  footer { width: min(calc(100% - 32px), var(--container)) !important; }
}

@media (max-width: 540px) {
  .brand-name { font-size: 10px; letter-spacing: .09em; }
  .brand-mark { width: 28px; height: 28px; }
  .nav a { font-size: 10px !important; }
  .nav a.access-nav { min-height: 38px !important; padding-inline: 12px !important; }
  .lang-btn { min-width: 38px !important; padding-inline: 7px !important; }
  .infrastructure-page h1 { font-size: clamp(44px, 13vw, 62px) !important; }
  .infrastructure-page .summary { grid-template-columns: 1fr !important; }
  .infrastructure-page .image-card img, .infrastructure-page .image-card:first-child img { height: 230px !important; }
  .infrastructure-page .section-title { font-size: 35px !important; }
  .infrastructure-page .matrix { grid-template-columns: 1fr !important; }
  .infrastructure-page .signal-item { grid-template-columns: 1fr !important; gap: 8px !important; }
  .access-page .panel { border-radius: 22px; }
  .access-copy { padding: 38px 24px 28px; }
  .access-page h1 { font-size: 46px !important; }
  .access-page .form { grid-template-columns: 1fr !important; }
  .access-page button.primary { width: 100%; }
  .vault-visual { min-height: 300px; }
  .vault-core { width: 124px; height: 124px; }
  .vault-visual::before { width: 230px; height: 230px; }
  .vault-visual::after { width: 310px; height: 310px; }
  .access-page .result { padding: 24px !important; }
  .access-page.unlocked .access-copy { padding: 30px 24px 22px; }
  .access-page .limit-head { align-items: flex-start !important; flex-direction: column; }
  .access-page .rate-input { max-width: 100% !important; }
  footer { align-items: flex-start !important; flex-direction: column; min-height: auto; padding-block: 28px !important; }
}

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