/* 字体由各页 <head> 里的非阻塞 <link> 加载（Google Fonts 在国内不稳，
   不能用 @import 串行阻塞渲染）。下面的字体栈必须自带中文系统兜底。 */
:root {
  color-scheme: light;
  --paper: #f8f8ff;
  --paper-2: #eef2ff;
  --paper-3: #e8f4f1;
  --ink: #07111f;
  --ink-2: #243044;
  --muted: #657083;
  --faint: #929bad;
  --white: #ffffff;
  --line: rgba(7, 17, 31, .13);
  --line-2: rgba(7, 17, 31, .08);
  --acid: #d7ff35;
  --acid-2: #a4e800;
  --acid-soft: #eef5cf;
  --blue: #204cff;
  --blue-2: #112cba;
  --blue-soft: #e8ecf8;
  --cyan: #00c2ff;
  --cyan-soft: #e4f1f2;
  --red: #ff4f39;
  --red-soft: #f7e9e5;
  --pink: #ff4fc3;
  --violet: #6d43ff;
  --green: #10b981;
  --shadow: 0 24px 64px rgba(12, 31, 75, .1);
  --shadow-hard: 7px 7px 0 rgba(7, 17, 31, .78);
  --container: min(1180px, calc(100% - 44px));
  --container-wide: min(1320px, calc(100% - 44px));
  --container-text: min(820px, calc(100% - 36px));
  --r: 18px;
  --r-sm: 12px;
  --r-xs: 8px;
  --font-sans: "Geist", "Noto Sans SC", "PingFang SC", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Noto Sans SC", var(--font-sans);
  --font-serif: "Noto Serif SC", Georgia, "Songti SC", "SimSun", serif;
  --ease: cubic-bezier(.2, .9, .2, 1);
  --ease-glass: cubic-bezier(.22, 1, .36, 1);
  --glass-backdrop: url("#kaka-liquid-glass-filter") blur(.25px) contrast(1.2) brightness(1.05) saturate(1.1);
  --glass-backdrop-panel: url("#kaka-liquid-glass-filter") blur(.6px) contrast(1.16) brightness(1.06) saturate(1.16);
  --glass-backdrop-soft: blur(.65px) contrast(1.04) brightness(1.02) saturate(1.08);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  margin: 0;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font: 16px/1.65 var(--font-sans);
  background:
    linear-gradient(90deg, rgba(7, 17, 31, .035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(7, 17, 31, .035) 1px, transparent 1px),
    radial-gradient(circle at 84% 8%, rgba(215, 255, 53, .12), transparent 23rem),
    radial-gradient(circle at 5% 16%, rgba(32, 76, 255, .07), transparent 28rem),
    radial-gradient(circle at 66% 78%, rgba(255, 79, 57, .055), transparent 26rem),
    linear-gradient(180deg, #fbfbfd 0%, var(--paper) 42%, #f4f5f8 100%);
  background-size: 34px 34px, 34px 34px, auto, auto, auto, auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    linear-gradient(118deg, transparent 0 18%, rgba(32, 76, 255, .035) 18% 18.2%, transparent 18.2% 58%, rgba(255, 79, 57, .04) 58% 58.18%, transparent 58.18%),
    radial-gradient(circle at 50% 0%, rgba(255,255,255,.34), transparent 34rem);
}

img,
svg,
video,
canvas { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }
button,
input,
textarea,
select { font: inherit; }
button { color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
::selection { background: rgba(215, 255, 53, .48); color: var(--ink); }
:focus-visible { outline: 3px solid rgba(32, 76, 255, .42); outline-offset: 4px; border-radius: var(--r-xs); }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  transform: translateY(-150%);
  padding: 10px 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--acid);
  font-weight: 900;
}
.skip-link:focus { transform: translateY(0); }

.container { width: var(--container); margin-inline: auto; }
.container-wide { width: var(--container-wide); margin-inline: auto; }
.container-text { width: var(--container-text); margin-inline: auto; }
.mono { font-family: var(--font-display); letter-spacing: 0; }
body.lang-zh [data-lang="en"],
body.lang-en [data-lang="zh"] { display: none !important; }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 80;
  border-bottom: 1px solid transparent;
  transition: background .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.site-nav::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at calc(50% + (var(--mx, 0) * 22%)) calc(10% + (var(--my, 0) * 18%)), rgba(255,255,255,.34), transparent 25rem),
    linear-gradient(135deg, rgba(248,250,255,.18), rgba(255,255,255,.08) 45%, rgba(215,255,53,.08));
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  transition: opacity .26s var(--ease-glass), backdrop-filter .34s var(--ease-glass), -webkit-backdrop-filter .34s var(--ease-glass);
}
body.nav-open .site-nav::after {
  pointer-events: auto;
  opacity: 1;
  background: rgba(246,247,252,.58);
  -webkit-backdrop-filter: blur(22px) saturate(1.1);
  backdrop-filter: blur(22px) saturate(1.1);
}
/* Keep the sticky canvas transparent while scrolling. The brand, link rail and
   actions already carry the liquid-glass surface; blurring the whole header
   turns that refraction into a flat Gaussian veil. */
.site-nav.scrolled {
  background: transparent;
  border-bottom-color: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
}
/* While the mobile menu is open the fixed ::after veil must own the blur —
   any backdrop-filter on the bar itself would become its containing block
   and clamp the veil (and the fixed panels) to the bar's box. */
body.nav-open .site-nav,
body.nav-open .site-nav.scrolled {
  background: transparent;
  border-bottom-color: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
}
.nav-inner {
  width: var(--container-wide);
  min-height: 74px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  position: relative;
  z-index: 2;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 6px 11px 6px 9px;
  border: 1px solid rgba(255,255,255,.74);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.34), rgba(255,255,255,.08)),
    rgba(255,255,255,.13);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.78),
    inset 0 -10px 20px rgba(7,17,31,.045),
    0 6px 14px rgba(12,31,75,.075);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0;
  justify-self: start;
}
.brand::before {
  content: "";
  width: 18px;
  height: 18px;
  border: 3px solid var(--ink);
  background:
    linear-gradient(135deg, var(--acid) 0 42%, var(--blue) 42% 68%, var(--red) 68%);
  transform: rotate(45deg);
  box-shadow: 4px 4px 0 var(--ink);
}
.est-badge {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
  border: 1px solid rgba(7,17,31,.22);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(215,255,53,.36), rgba(0,194,255,.13)),
    rgba(255,255,255,.18);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: .68rem;
  font-weight: 900;
  line-height: 1;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.72),
    2px 2px 0 rgba(7,17,31,.85);
}
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-actions {
  justify-self: end;
  padding: 6px;
  border: 1px solid rgba(255,255,255,.74);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.32), rgba(255,255,255,.08)),
    rgba(255,255,255,.13);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.76),
    inset 0 -11px 22px rgba(7,17,31,.045),
    0 6px 14px rgba(12,31,75,.08);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.nav-links {
  position: relative;
  width: max-content;
  justify-content: center;
  justify-self: center;
  isolation: isolate;
  overflow: hidden;
  padding: 6px;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.28), rgba(255,255,255,.06)),
    rgba(255,255,255,.12);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.74),
    inset 0 -12px 24px rgba(7,17,31,.045),
    inset 0 0 0 1px rgba(255,255,255,.18),
    0 6px 14px rgba(12,31,75,.08);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.nav-links::before,
.nav-links::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: inherit;
  z-index: 0;
}
.nav-links::before {
  inset: 1px;
  background:
    linear-gradient(115deg, rgba(255,255,255,.42), transparent 38%),
    radial-gradient(circle at 8% 0%, rgba(255,255,255,.54), transparent 34%);
  opacity: .7;
}
.nav-links::after {
  inset: -90% -18%;
  background:
    conic-gradient(from 120deg, transparent, rgba(0,194,255,.24), rgba(255,255,255,.58), rgba(255,79,57,.2), transparent 72%);
  opacity: .2;
  mix-blend-mode: screen;
  transform: translate3d(calc(var(--mx, 0) * 18px), calc(var(--my, 0) * 10px), 0) rotate(0deg);
}
.nav-glass-indicator {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  width: var(--nav-pill-w, 0px);
  height: var(--nav-pill-h, 0px);
  border-radius: 999px;
  opacity: var(--nav-pill-o, 0);
  pointer-events: none;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.8);
  background:
    linear-gradient(140deg, rgba(255,255,255,.58), rgba(255,255,255,.16) 48%, rgba(255,255,255,.38)),
    radial-gradient(circle at 16% 0%, rgba(255,255,255,.68), transparent 46%),
    rgba(255,255,255,.12);
  box-shadow:
    inset 0 1px 1px rgba(255,255,255,.88),
    inset 0 -9px 18px rgba(7,17,31,.055),
    0 5px 12px rgba(12,31,75,.1);
  -webkit-backdrop-filter: var(--glass-backdrop);
  backdrop-filter: var(--glass-backdrop);
  transform: translate3d(var(--nav-pill-x, 0px), var(--nav-pill-y, 0px), 0);
  transition:
    transform .36s var(--ease-glass),
    width .36s var(--ease-glass),
    height .36s var(--ease-glass),
    opacity .18s var(--ease);
  will-change: transform, width, height;
}
.nav-glass-indicator::before,
.nav-glass-indicator::after {
  content: "";
  position: absolute;
  inset: -36%;
  pointer-events: none;
}
.nav-glass-indicator::before {
  background:
    radial-gradient(circle at 28% 22%, rgba(255,255,255,.95), transparent 22%),
    linear-gradient(105deg, transparent 30%, rgba(255,255,255,.72) 47%, transparent 60%);
  opacity: .66;
  transform: translateX(calc(var(--mx, 0) * 12px));
}
.nav-glass-indicator::after {
  background:
    conic-gradient(from 70deg, rgba(215,255,53,.34), rgba(0,194,255,.22), rgba(255,79,57,.18), rgba(255,255,255,.5), rgba(215,255,53,.34));
  opacity: .28;
  mix-blend-mode: soft-light;
}
.nav-links a,
.mini-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  border-radius: 999px;
  color: var(--ink-2);
  font-size: .92rem;
  font-weight: 800;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-links a {
  position: relative;
  z-index: 2;
  background: transparent;
}
.nav-links a:hover,
.nav-links a:focus-visible {
  background: transparent;
  color: var(--ink);
  transform: translateY(-2px);
  text-shadow: 0 7px 18px rgba(12,31,75,.18);
}
.nav-links a.active {
  background: transparent;
  color: var(--ink);
  transform: none;
}
.mini-link:hover {
  background: rgba(255,255,255,.18);
  color: var(--ink);
  transform: translateY(-1px);
}
.nav-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.74);
  border-radius: 999px;
  background:
    linear-gradient(140deg, rgba(255,255,255,.5), rgba(255,255,255,.12)),
    rgba(255,255,255,.12);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.88),
    inset 0 -10px 20px rgba(7,17,31,.08),
    5px 5px 0 var(--ink);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
  align-items: center;
  justify-content: center;
  transition: transform .22s var(--ease-glass), box-shadow .22s var(--ease-glass), background .22s var(--ease);
}
.nav-menu-toggle span,
.nav-menu-toggle::before,
.nav-menu-toggle::after {
  content: "";
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background: var(--ink);
  position: absolute;
  transition: transform .18s var(--ease), opacity .18s var(--ease);
}
.nav-menu-toggle::before { transform: translateY(-6px); }
.nav-menu-toggle::after { transform: translateY(6px); }
body.nav-open .nav-menu-toggle span { opacity: 0; }
body.nav-open .nav-menu-toggle::before { transform: rotate(45deg); }
body.nav-open .nav-menu-toggle::after { transform: rotate(-45deg); }
body.nav-open .nav-menu-toggle {
  transform: scale(1.04);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.9),
    inset 0 -10px 20px rgba(7,17,31,.08),
    7px 7px 0 var(--ink);
}

.btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
  box-shadow: 6px 6px 0 var(--ink);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 9px 9px 0 var(--ink); }
.btn:active { transform: translate(1px, 1px); box-shadow: 4px 4px 0 var(--ink); }
.btn-primary {
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(215,255,53,.24), rgba(0,194,255,.18) 48%, rgba(109,67,255,.22)),
    rgba(255,255,255,.16);
}
.btn-blue {
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(32,76,255,.2), rgba(109,67,255,.18), rgba(0,194,255,.14)),
    rgba(255,255,255,.14);
}
.btn-line,
.btn-ghost {
  background:
    linear-gradient(135deg, rgba(255,255,255,.34), rgba(255,255,255,.1)),
    rgba(255,255,255,.16);
}
.btn.sm { min-height: 40px; padding-inline: 15px; font-size: .86rem; box-shadow: 4px 4px 0 var(--ink); }
.btn.xs { min-height: 34px; padding-inline: 12px; font-size: .8rem; box-shadow: 3px 3px 0 var(--ink); }
.btn-arrow::after,
.link-arrow::after { content: "↗"; font-weight: 900; }
.btn-arrow.down::after { content: "↓"; } /* in-page anchors scroll, not jump out */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-2);
  font-weight: 900;
}

.hero-portal {
  min-height: calc(100svh - 74px);
  display: grid;
  align-items: center;
  padding: 82px 0 80px;
}
.hero-grid {
  width: var(--container-wide);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .58fr);
  gap: clamp(26px, 6vw, 88px);
  align-items: end;
}
.thesis-mark,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--ink-2);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 800;
  text-transform: uppercase;
}
.thesis-mark::before,
.eyebrow::before {
  content: "";
  width: 54px;
  height: 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--acid), var(--cyan), var(--red));
  box-shadow: 3px 3px 0 var(--ink);
}
.hero-title {
  margin: 0;
  max-width: 10.4ch;
  font-family: var(--font-display);
  font-size: 9.2rem;
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0;
  text-wrap: balance;
}
.hero-title .turn {
  display: inline-block;
  transform: rotate(-2.5deg);
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  text-shadow: 8px 8px 0 rgba(183, 214, 72, .42);
}
.hero-lead {
  max-width: 720px;
  margin: 30px 0 0;
  color: var(--ink-2);
  font-size: 1.24rem;
  font-weight: 600;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.route-console {
  position: relative;
  padding: 26px;
  border: 2px solid var(--ink);
  border-radius: 28px;
  background: rgba(255,255,255,.24);
  box-shadow: var(--shadow-hard), inset 0 0 0 1px rgba(255,255,255,.42);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.route-console::before {
  content: "LIVE ROUTE";
  position: absolute;
  top: -18px;
  left: 22px;
  padding: 4px 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--acid);
  font-family: var(--font-display);
  font-size: .74rem;
  font-weight: 900;
}
.console-main {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  align-items: center;
}
.console-orbit {
  width: 92px;
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, var(--ink) 0 8px, transparent 9px),
    conic-gradient(from calc(var(--scroll, 0) * 1turn), var(--acid), var(--blue), var(--red), var(--cyan), var(--acid));
  box-shadow: inset 0 0 0 14px rgba(255,255,255,.84);
}
.console-main h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.85rem;
  line-height: 1.18;
  letter-spacing: 0;
  text-wrap: balance;
}
.console-main p {
  margin: 10px 0 0;
  color: var(--ink-2);
  font-weight: 650;
}
.console-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.console-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-weight: 800;
}
.console-list span { color: var(--muted); font-family: var(--font-display); font-size: .82rem; }
.intent-ribbon {
  width: var(--container-wide);
  margin: -38px auto 0;
  border-block: 2px solid var(--ink);
  overflow: hidden;
  background: rgba(255, 255, 255, .2);
  -webkit-backdrop-filter: var(--glass-backdrop);
  backdrop-filter: var(--glass-backdrop);
}
.intent-ribbon .track {
  display: flex;
  width: max-content;
  animation: ribbon 28s linear infinite;
}
.intent-ribbon span {
  padding: 16px 26px;
  font-family: var(--font-display);
  font-weight: 800;
  white-space: nowrap;
}
@keyframes ribbon { to { transform: translateX(-50%); } }

.intro-bridge {
  position: relative;
  width: var(--container-wide);
  margin: 58px auto -18px;
  padding: 34px clamp(22px, 4vw, 54px);
  border-block: 3px solid var(--ink);
  background:
    linear-gradient(115deg, rgba(255,255,255,.82), rgba(238,245,207,.78) 38%, rgba(228,241,242,.66) 64%, rgba(255,255,255,.86)),
    linear-gradient(90deg, transparent 0 48%, rgba(7,17,31,.12) 48% 49%, transparent 49%);
  box-shadow: 0 26px 80px rgba(12, 31, 75, .12);
  transform: rotate(-.6deg);
}
.intro-bridge::before {
  content: "";
  position: absolute;
  inset: 16px auto 16px -10px;
  width: 18px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--red), var(--blue), var(--acid));
  box-shadow: 5px 5px 0 var(--ink);
}
.intro-kicker,
.intro-layout {
  transform: rotate(.6deg);
}
.intro-kicker {
  width: fit-content;
  margin-bottom: 20px;
  padding: 6px 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: rgba(255,255,255,.86);
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 900;
}
.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .52fr);
  gap: clamp(24px, 6vw, 74px);
  align-items: end;
}
.intro-main h2 {
  max-width: 11ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: 4.8rem;
  font-weight: 700;
  line-height: 1.06; /* CJK glyphs fill the em box — sub-1 leading collides */
  letter-spacing: 0;
  text-wrap: balance;
}
.intro-main p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--ink-2);
  font-size: 1.12rem;
  font-weight: 650;
}
.intro-proof {
  display: grid;
  gap: 10px;
}
.intro-proof div {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 76px;
  padding: 13px 15px;
  border: 2px solid var(--ink);
  border-radius: var(--r-xs);
  background: rgba(255,255,255,.72);
  box-shadow: 4px 4px 0 var(--ink);
}
.intro-proof div:nth-child(2) { background: #dce6ff; }
.intro-proof div:nth-child(3) { background: #ffe2df; }
.intro-proof b {
  color: var(--blue-2);
  font-family: var(--font-display);
  font-size: 1.06rem;
  line-height: 1.05;
}
.intro-proof span {
  color: var(--ink-2);
  font-weight: 750;
  line-height: 1.45;
}

.route-story {
  position: relative;
  width: var(--container-wide);
  margin: 86px auto 0;
  padding: 20px 0 90px;
}
.route-story::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  border-radius: 999px;
  transform: translateX(-50%);
  background:
    linear-gradient(180deg, transparent 0 1%, var(--ink) 1% 99%, transparent 99%),
    linear-gradient(180deg, var(--acid), var(--blue), var(--red));
  box-shadow: 0 0 0 10px rgba(255,255,255,.45);
}
.story-node {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  min-height: 440px;
}
.story-node::before {
  content: attr(data-step);
  grid-column: 2;
  width: 82px;
  height: 82px;
  display: grid;
  place-items: center;
  justify-self: center;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
  box-shadow: 7px 7px 0 var(--ink);
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 900;
}
.story-node:nth-child(3n+1)::before { background: var(--acid); }
.story-node:nth-child(3n+2)::before { background: var(--cyan); }
.story-node:nth-child(3n)::before { background: var(--red); color: #fff; }
.story-copy {
  grid-column: 1;
  max-width: 560px;
  padding: 24px 0;
}
.story-node:nth-child(even) .story-copy { grid-column: 3; }
.story-copy h2,
.page-title,
.login-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}
.story-copy p,
.page-lead,
.login-copy p {
  margin: 22px 0 0;
  color: var(--ink-2);
  font-size: 1.08rem;
  font-weight: 600;
}
.story-copy .micro {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: rgba(255,255,255,.7);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 800;
}
.scope-cloud {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 42px 0;
}
.scope-cloud .scope {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  padding: 0 20px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  box-shadow: 5px 5px 0 var(--ink);
  font-weight: 900;
}
.scope:nth-child(3n+1) { background: var(--acid-soft); }
.scope:nth-child(3n+2) { background: #dce6ff; }
.scope:nth-child(3n) { background: #ffe2df; }

.archive-tease {
  width: var(--container-wide);
  margin: 10px auto 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: center;
  padding: clamp(26px, 4vw, 48px) clamp(22px, 3.5vw, 46px);
  border-block: 3px solid var(--ink);
  background:
    linear-gradient(105deg, rgba(255,255,255,.8), rgba(238,242,255,.6) 46%, rgba(215,255,53,.16)),
    radial-gradient(circle at 92% 8%, rgba(0,194,255,.14), transparent 18rem);
}
.archive-tease h2 {
  max-width: 13ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: 4.2rem;
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0;
  text-wrap: balance;
}
.archive-tease .tease-copy p {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--ink-2);
  font-size: 1.08rem;
  font-weight: 600;
}
.tease-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.tease-stack { display: grid; gap: 14px; }
.tease-file {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 14px;
  padding: 18px 20px;
  border: 2px solid var(--ink);
  border-radius: 20px;
  background: rgba(255,255,255,.82);
  box-shadow: 6px 6px 0 var(--ink);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}
.tease-file:nth-child(1) { transform: rotate(-1.1deg); }
.tease-file:nth-child(2) { transform: rotate(.7deg); margin-left: 20px; }
.tease-file:nth-child(3) { transform: rotate(-.5deg); }
.tease-file:hover { transform: translate(-2px, -2px) rotate(0); box-shadow: 9px 9px 0 var(--ink); z-index: 1; }
.tease-file b {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0;
}
.tease-file .tf-sub {
  color: var(--ink-2);
  font-size: .9rem;
  font-weight: 650;
}
.tease-file .tf-tag {
  position: absolute;
  top: -12px;
  right: 16px;
  padding: 3px 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--acid);
  font-family: var(--font-display);
  font-size: .68rem;
  font-weight: 900;
  box-shadow: 2px 2px 0 var(--ink);
}
.tease-file.locked {
  border-style: dashed;
  background: rgba(255,255,255,.55);
  box-shadow: 4px 4px 0 rgba(7,17,31,.4);
}
.tease-file.locked .tf-tag { background: #e6e9f4; }
.tease-file.locked b,
.tease-file.locked .tf-sub { opacity: .72; }

.launch-band {
  width: var(--container-wide);
  margin: 34px auto 96px;
  padding: clamp(28px, 6vw, 64px);
  border: 3px solid var(--ink);
  border-radius: 36px;
  background:
    linear-gradient(135deg, var(--acid-soft), rgba(255,255,255,.94) 48%, var(--blue-soft)),
    radial-gradient(circle at 100% 0%, rgba(255,79,57,.1), transparent 20rem);
  box-shadow: var(--shadow-hard);
}
.launch-band h2 {
  margin: 0;
  max-width: 900px;
  font-family: var(--font-display);
  font-size: 5.8rem;
  line-height: 1.05;
  letter-spacing: 0;
  text-wrap: balance;
}
.launch-band p { max-width: 720px; margin: 24px 0 0; color: var(--ink-2); font-size: 1.12rem; font-weight: 650; }
.launch-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

.site-foot {
  border-top: 2px solid var(--ink);
  background: rgba(248,248,255,.86);
}
.site-foot .inner {
  width: var(--container-wide);
  min-height: 86px;
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; color: var(--ink-2); font-size: .9rem; font-weight: 800; }
.version { color: var(--red); font-family: var(--font-display); }
.mobile-quick-cta { display: none; }

.login-page {
  background:
    radial-gradient(circle at 18% 18%, rgba(215,255,53,.18), transparent 22rem),
    radial-gradient(circle at 88% 10%, rgba(32,76,255,.075), transparent 28rem),
    linear-gradient(180deg, #fbfbff, #eef4ff);
}
.login-shell {
  min-height: calc(100svh - 74px);
  width: var(--container-wide);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(340px, 480px);
  gap: clamp(28px, 7vw, 96px);
  align-items: center;
  padding: 54px 0 96px;
}
.login-copy {
  position: relative;
  padding: 24px 0;
}
.login-copy::after {
  content: "ACCESS";
  position: absolute;
  z-index: -1;
  left: -4vw;
  bottom: -44px;
  color: rgba(32, 76, 255, .08);
  font-family: var(--font-display);
  font-size: 12rem;
  font-weight: 700;
  line-height: 1;
}
/* ---- 卡卡猫: the login mascot. All states are CSS classes toggled by
   kaka-pet.js — eyes track the pointer, paws cover the eyes while a
   password is being typed, pokes squish, errors shake, success beams. ---- */
.pet-stage { width: min(250px, 56%); margin: 10px 0 22px; }
#kakaPet {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
#kakaPet .pet-root { transform-origin: 120px 150px; }
#kakaPet.poke .pet-root { animation: pet-squish .6s var(--ease); }
#kakaPet.sad .pet-root { animation: pet-shake .55s var(--ease); }
#kakaPet .pet-face,
#kakaPet .pet-pupils { transition: transform .16s cubic-bezier(.3,.9,.4,1); will-change: transform; }
#kakaPet .pet-eye {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform .15s var(--ease);
}
#kakaPet.blink .pet-eye,
#kakaPet.covered .pet-eye { transform: scaleY(.08); }
#kakaPet.happy .pet-eye { transform: scaleY(.16); }
#kakaPet .pet-mouth { transition: opacity .15s var(--ease); }
#kakaPet .pet-mouth-open {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  transform: scale(.4);
  transition: transform .18s var(--ease), opacity .18s var(--ease);
}
#kakaPet.poke .pet-mouth,
#kakaPet.happy .pet-mouth { opacity: 0; }
#kakaPet.poke .pet-mouth-open,
#kakaPet.happy .pet-mouth-open { opacity: 1; transform: scale(1); }
#kakaPet .pet-cheek { opacity: 0; transition: opacity .28s var(--ease); }
#kakaPet.blush .pet-cheek,
#kakaPet.covered .pet-cheek,
#kakaPet.happy .pet-cheek { opacity: .34; }
#kakaPet .pet-paw { transition: transform .34s cubic-bezier(.34, 1.56, .64, 1); }
#kakaPet.covered .pet-paw.left { transform: translate(10px, -104px) rotate(7deg); }
#kakaPet.covered .pet-paw.right { transform: translate(-10px, -104px) rotate(-7deg); }
@keyframes pet-squish {
  0% { transform: scale(1); }
  30% { transform: scale(1.07, .86) rotate(-2deg); }
  62% { transform: scale(.95, 1.06) rotate(1.6deg); }
  100% { transform: scale(1); }
}
@keyframes pet-shake {
  0%, 100% { transform: translateX(0); }
  22% { transform: translateX(-7px) rotate(-1.5deg); }
  48% { transform: translateX(6px) rotate(1.2deg); }
  74% { transform: translateX(-4px); }
}

.access-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
  max-width: 660px;
}
.access-cell {
  min-height: 88px;
  padding: 14px;
  border: 2px solid var(--ink);
  border-radius: 18px;
  background: rgba(255,255,255,.68);
  font-weight: 800;
  box-shadow: 4px 4px 0 var(--ink);
}
.access-cell b {
  display: block;
  color: var(--blue);
  font-family: var(--font-display);
  font-size: 1.2rem;
}
.access-cell.hot { background: var(--acid-soft); }
.login-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 30px;
  border: 3px solid var(--ink);
  border-radius: 32px;
  background: rgba(255,255,255,.38);
  box-shadow: var(--shadow-hard);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.login-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: .9;
  letter-spacing: 0;
}
.login-panel .sub { margin: 12px 0 24px; color: var(--ink-2); font-weight: 650; }
.field { margin-top: 17px; }
.field label {
  display: block;
  margin-bottom: 7px;
  font-weight: 900;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 2px solid var(--ink);
  border-radius: 16px;
  background: rgba(255,255,255,.88);
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(7, 17, 31, .2);
  transition: box-shadow .18s var(--ease), transform .18s var(--ease), background .18s var(--ease);
}
.field textarea { min-height: 120px; padding-block: 14px; resize: vertical; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 var(--blue);
  background: #fff;
}
.between {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}
.between button { color: var(--blue-2); font-weight: 900; }
.actions { margin-top: 20px; }
.actions .btn { width: 100%; }
.msg { min-height: 1.5em; margin-top: 14px; color: var(--muted); font-weight: 700; }
.msg.err { color: var(--red); }
.msg.ok { color: var(--green); }
.auth-apply {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 2px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--ink-2);
  font-weight: 700;
}

.chip-btn {
  min-height: 38px;
  padding: 0 15px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.34), rgba(255,255,255,.1)),
    rgba(255,255,255,.16);
  color: var(--ink);
  font-weight: 900;
  box-shadow: 4px 4px 0 var(--ink);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
}
.chip-btn.active {
  background:
    linear-gradient(135deg, rgba(215,255,53,.3), rgba(0,194,255,.2)),
    rgba(255,255,255,.18);
}
.letter-shell {
  width: var(--container-wide);
  margin-inline: auto;
  padding: 70px 0 100px;
}
.letter-head {
  width: min(920px, 100%);
  margin: 0 auto 54px;
  text-align: center;
}
.letter-head .crest {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--ink-2);
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 900;
  text-transform: uppercase;
}
.letter-head .crest::before,
.letter-head .crest::after {
  content: "";
  width: 34px;
  height: 9px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--acid), var(--cyan), var(--red));
}
.letter-head h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 5.6rem;
  line-height: 1.1;
  letter-spacing: 0;
}
.letter-head h1 em {
  color: transparent;
  font-style: normal;
  -webkit-text-stroke: 2px var(--ink);
  text-shadow: 6px 6px 0 rgba(183,214,72,.42);
}
.letter-head .place {
  margin-top: 20px;
  color: var(--muted);
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
}
.letter-head .lang-switch {
  display: inline-flex;
  gap: 10px;
  margin-top: 24px;
}
.letter-body {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: min(820px, 100%);
  margin-inline: auto;
  padding: clamp(22px, 4vw, 42px);
  border: 2px solid var(--ink);
  border-radius: 34px;
  background: rgba(255,255,255,.42);
  box-shadow: var(--shadow-hard);
  -webkit-backdrop-filter: var(--glass-backdrop-panel);
  backdrop-filter: var(--glass-backdrop-panel);
  color: var(--ink-2);
  font-family: var(--font-serif);
  font-size: 1.08rem;
  line-height: 1.95;
}
body.lang-en .letter-body {
  font-family: var(--font-sans);
  line-height: 1.78;
}
.letter-body .salutation {
  margin: 0 0 24px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0;
}
.letter-body p { margin: 0 0 16px; }
.letter-body strong { color: var(--ink); font-weight: 900; }
.letter-body em { color: var(--blue-2); font-style: normal; font-weight: 700; }
.letter-body p.lead-para::first-letter {
  float: left;
  margin: .08em .12em 0 0;
  color: var(--red);
  font-family: var(--font-display);
  font-size: 3.8em;
  font-weight: 700;
  line-height: .8;
}
.sign-off {
  margin-top: 54px;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
  text-align: right;
}
.sign-off .closing { margin-bottom: 8px; color: var(--muted); }
.sign-off .name {
  margin: 0 0 10px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 4.2rem;
  line-height: .9;
  letter-spacing: 0;
}
.sign-off .where {
  color: var(--muted);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 800;
  text-transform: uppercase;
}
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
}
.doc-hero {
  width: var(--container-wide);
  margin: 0 auto;
  padding: 76px 0 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .48fr);
  gap: clamp(26px, 7vw, 92px);
  align-items: end;
}
.page-title { max-width: 11ch; }
.page-lead { max-width: 680px; }
.doc-side {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: 28px;
  background: rgba(255,255,255,.66);
  box-shadow: 7px 7px 0 var(--ink);
  font-weight: 800;
}
.doc-side p { margin: 0; color: var(--ink-2); }
.doc-shell {
  width: var(--container-wide);
  margin: 28px auto 96px;
  display: grid;
  grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
  gap: clamp(26px, 6vw, 82px);
}
.doc-rail {
  position: sticky;
  top: 98px;
  align-self: start;
  display: grid;
  gap: 10px;
}
.doc-rail a,
.doc-rail span {
  display: inline-flex;
  width: fit-content;
  padding: 8px 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: rgba(255,255,255,.68);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 900;
}
.doc-rail span { background: var(--acid-soft); }
.doc-flow {
  position: relative;
  counter-reset: doc;
}
.doc-block {
  position: relative;
  padding: 38px 0 44px 54px;
  border-top: 2px solid var(--ink);
  counter-increment: doc;
}
.doc-block::before {
  content: counter(doc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 42px;
  color: var(--blue);
  font-family: var(--font-display);
  font-weight: 900;
}
.doc-block h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 2.8rem;
  line-height: 1.08;
  letter-spacing: 0;
}
.doc-block p,
.doc-block li {
  max-width: 850px;
  color: var(--ink-2);
  font-size: 1.02rem;
  font-weight: 600;
}
.doc-block p { margin: 0 0 16px; }
.doc-block ul { margin: 0; padding-left: 20px; }
.doc-block li { margin-bottom: 8px; }
.quote-cut {
  margin: 28px 0;
  padding: 24px 28px;
  border: 3px solid var(--ink);
  border-radius: 26px;
  background: var(--acid-soft);
  box-shadow: 6px 6px 0 rgba(7,17,31,.76);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0;
}
.privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.privacy-chip {
  padding: 18px;
  border: 2px solid var(--ink);
  border-radius: 20px;
  background: rgba(255,255,255,.72);
  box-shadow: 4px 4px 0 var(--ink);
}
.privacy-chip b {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-display);
}
.edi-rule {
  width: min(340px, 100%);
  height: 12px;
  margin: 14px 0 20px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: linear-gradient(90deg, #e40303, #ff8c00, #ffed00, #008026, #24408e, #732982);
}

:where(.route-console, .login-panel, .letter-body, .doc-side, .mobile-quick-cta)::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border-radius: inherit;
  background:
    linear-gradient(115deg, rgba(255,255,255,.54), transparent 34%, rgba(255,255,255,.28) 56%, transparent 72%),
    radial-gradient(circle at calc(42% + (var(--mx, 0) * 18%)) calc(0% + (var(--my, 0) * 12%)), rgba(255,255,255,.66), transparent 32%);
  opacity: .24;
  transform: translate3d(calc(var(--mx, 0) * 10px), calc(var(--my, 0) * 7px), 0);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
:where(.route-console, .login-panel, .letter-body, .doc-side, .mobile-quick-cta) > * {
  position: relative;
  z-index: 1;
}
.route-console::before { z-index: 2; }

@keyframes liquid-sheen {
  0% { transform: translate3d(calc(var(--mx, 0) * 18px - 8%), calc(var(--my, 0) * 10px), 0) rotate(0deg); }
  50% { transform: translate3d(calc(var(--mx, 0) * 18px + 8%), calc(var(--my, 0) * 10px), 0) rotate(180deg); }
  100% { transform: translate3d(calc(var(--mx, 0) * 18px - 8%), calc(var(--my, 0) * 10px), 0) rotate(360deg); }
}
@keyframes liquid-orbit {
  to { transform: rotate(360deg); }
}
@keyframes glass-menu-in {
  from {
    opacity: 0;
    transform: translate3d(0, -14px, 0) scale(.97);
    -webkit-backdrop-filter: url("#kaka-liquid-glass-filter") blur(.2px) contrast(1.05) brightness(1.02) saturate(1.08);
    backdrop-filter: url("#kaka-liquid-glass-filter") blur(.2px) contrast(1.05) brightness(1.02) saturate(1.08);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    -webkit-backdrop-filter: var(--glass-backdrop-panel);
    backdrop-filter: var(--glass-backdrop-panel);
  }
}

[data-reveal],
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
[data-reveal].is-visible,
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  body.nav-open { overflow: hidden; }
  .nav-inner { grid-template-columns: 1fr auto; min-height: 66px; }
  .nav-links,
  .nav-actions { display: none; }
  .nav-menu-toggle { display: inline-flex; position: relative; justify-self: end; }
  body.nav-open .nav-links,
  body.nav-open .nav-actions {
    position: fixed;
    left: 18px;
    right: 18px;
    width: calc(100vw - 36px);
    max-width: 520px;
    z-index: 4;
    display: grid;
    justify-items: stretch;
    border: 1px solid rgba(255,255,255,.76);
    border-radius: 30px;
    background:
      linear-gradient(135deg, rgba(255,255,255,.62), rgba(255,255,255,.42)),
      rgba(255,255,255,.76);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.82),
      inset 0 -18px 34px rgba(7,17,31,.045),
      inset 0 0 0 1px rgba(255,255,255,.14),
      0 28px 90px rgba(12,31,75,.18);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    backdrop-filter: blur(20px) saturate(1.2);
    animation: glass-menu-in .34s var(--ease-glass) both;
  }
  body.nav-open .nav-links {
    top: 82px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 8px;
    overflow: hidden;
  }
  /* The desktop hover-pill indicator keeps stale coordinates inside the
     dropdown grid — hide it while the menu is open. */
  body.nav-open .nav-glass-indicator { opacity: 0 !important; }
  body.nav-open .nav-links a {
    min-height: 52px;
    padding: 0 10px;
  }
  body.nav-open .nav-actions {
    top: 292px;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px;
    animation-delay: .04s;
  }
  body.nav-open .nav-actions .mini-link,
  body.nav-open .nav-actions .btn {
    width: 100%;
    min-height: 50px;
  }
  .hero-grid,
  .login-shell,
  .intro-layout,
  .doc-hero,
  .doc-shell,
  .archive-tease { grid-template-columns: 1fr; }
  .login-panel { order: -1; }
  .route-console { max-width: 560px; }
  .route-story::before { left: 42px; }
  .story-node {
    grid-template-columns: 92px minmax(0, 1fr);
    min-height: 0;
    padding: 54px 0;
  }
  .story-node::before { grid-column: 1; }
  .story-copy,
  .story-node:nth-child(even) .story-copy { grid-column: 2; }
  .doc-rail { position: static; grid-template-columns: repeat(2, max-content); }
  .privacy-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 1180px);
    --container-wide: min(100% - 28px, 1320px);
  }
  body {
    padding-bottom: calc(82px + env(safe-area-inset-bottom));
    font-size: 15.5px;
    background-size: 28px 28px, 28px 28px, auto, auto, auto, auto;
  }
  .brand { gap: 8px; font-size: 1.02rem; }
  .est-badge {
    min-height: 21px;
    padding-inline: 7px;
    font-size: .6rem;
    box-shadow: 2px 2px 0 var(--ink);
  }
  .hero-portal { padding: 48px 0 62px; }
  .hero-title { font-size: 4.35rem; }
  .hero-title .turn { -webkit-text-stroke: 1px var(--ink); text-shadow: 4px 4px 0 rgba(183,214,72,.42); }
  .hero-actions .btn,
  .launch-actions .btn { width: 100%; }
  .route-console { padding: 20px; border-radius: 24px; }
  .console-main { grid-template-columns: 70px 1fr; }
  .console-orbit { width: 70px; }
  .intent-ribbon { margin-top: -24px; }
  .intro-bridge {
    margin: 34px auto -4px;
    padding: 24px 18px 26px 24px;
    transform: none;
  }
  .intro-kicker,
  .intro-layout { transform: none; }
  .intro-main h2 { font-size: 2.9rem; }
  .intro-main p { font-size: 1rem; }
  .intro-proof div {
    grid-template-columns: 1fr;
    gap: 5px;
    min-height: 0;
    padding: 13px;
  }
  .route-story { margin-top: 48px; padding-bottom: 40px; }
  .route-story::before { left: 27px; width: 3px; }
  .story-node { grid-template-columns: 58px minmax(0, 1fr); gap: 16px; padding: 40px 0; }
  .story-node::before { width: 54px; height: 54px; font-size: 1.15rem; box-shadow: 4px 4px 0 var(--ink); }
  .story-copy h2,
  .page-title,
  .login-copy h1 { font-size: 2.85rem; }
  .letter-head h1 { font-size: 3.25rem; }
  .scope-cloud { justify-content: flex-start; padding: 18px 0; }
  .scope-cloud .scope { min-height: 44px; font-size: .92rem; }
  .archive-tease { grid-template-columns: 1fr; }
  .archive-tease h2 { font-size: 2.7rem; }
  .tease-actions .btn { width: 100%; }
  .tease-file:nth-child(2) { margin-left: 0; }
  .launch-band { margin-bottom: 62px; border-radius: 28px; box-shadow: 7px 7px 0 var(--ink); }
  .login-shell { padding-top: 34px; }
  .login-copy::after { display: none; }
  .pet-stage { width: min(190px, 52%); margin: 4px 0 14px; }
  .access-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .access-cell { min-height: 74px; }
  .login-panel { padding: 24px; border-radius: 26px; box-shadow: 7px 7px 0 var(--ink); }
  .doc-hero { padding-top: 44px; }
  .letter-shell { padding-top: 44px; }
  .letter-body { border-radius: 26px; box-shadow: 7px 7px 0 var(--ink); }
  .letter-head h1 em { -webkit-text-stroke: 1px var(--ink); text-shadow: 4px 4px 0 rgba(183,214,72,.42); }
  .doc-shell { margin-top: 0; }
  .doc-block { padding-left: 0; }
  .doc-block::before { position: static; display: block; margin-bottom: 10px; }
  .site-foot .inner { align-items: flex-start; padding: 22px 0; }
  .mobile-quick-cta {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: calc(12px + env(safe-area-inset-bottom));
    z-index: 120;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(82px, .75fr);
    gap: 9px;
    padding: 8px;
    overflow: hidden;
    isolation: isolate;
    border: 1px solid rgba(255,255,255,.72);
    border-radius: 999px;
    background:
      linear-gradient(135deg, rgba(255,255,255,.38), rgba(255,255,255,.1)),
      rgba(255,255,255,.18);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.82),
      inset 0 -14px 28px rgba(7,17,31,.05),
      6px 6px 0 var(--ink);
    -webkit-backdrop-filter: var(--glass-backdrop-panel);
    backdrop-filter: var(--glass-backdrop-panel);
    opacity: 0;
    pointer-events: none;
    transform: translateY(calc(100% + 20px));
    transition: opacity .22s var(--ease-glass), transform .28s var(--ease-glass);
  }
  body.show-mobile-cta:not(.nav-open) .mobile-quick-cta {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .mobile-quick-cta .btn {
    min-width: 0;
    min-height: 48px;
    padding: 0 12px;
    border-radius: 999px;
    box-shadow: none;
    white-space: nowrap;
  }
  .mobile-quick-cta .btn:hover,
  .mobile-quick-cta .btn:active {
    transform: none;
    box-shadow: none;
  }
  body.login-page:has(input:focus) .mobile-quick-cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal],
  .reveal { opacity: 1; transform: none; }
}

/* Phones / touch: drop the expensive animated SVG displacement backdrop-filter
   and fall back to a plain blur. Big GPU + battery win on mid-range mobiles. */
@media (max-width: 820px), (pointer: coarse) {
  :root {
    --glass-backdrop: var(--glass-backdrop-soft);
    --glass-backdrop-panel: var(--glass-backdrop-soft);
  }
}

/* ============================== KAKASQA identity ==============================
   The brand appears once in the shared chrome. Keep it free of the glass-pill
   treatment so the extracted mark and custom lettering remain the visual anchor. */
.site-nav {
  --brand-wordmark-max: 116;
  --brand-wordmark-gap-max: 6;
  --brand-wordmark-current: 116px;
  --brand-wordmark-gap-current: 6px;
  --brand-wordmark-opacity: 1;
  --brand-wordmark-shift: 0px;
  --brand-wordmark-scale: 1;
  --brand-mark-scale: 1;
}
.site-nav .brand {
  width: auto;
  min-width: 0;
  min-height: 46px;
  padding: 0;
  gap: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  color: transparent;
  font-size: 0;
  white-space: nowrap;
}
.site-nav .brand::before {
  content: "";
  width: 50px;
  height: 42px;
  flex: 0 0 50px;
  border: 0;
  background: url("brand/identity/kakasqa-mark-master.png") center / contain no-repeat;
  box-shadow: none;
  transform: scale(var(--brand-mark-scale));
}
.site-nav .brand::after {
  content: "";
  width: var(--brand-wordmark-current);
  max-width: var(--brand-wordmark-current);
  height: 28px;
  flex: 0 0 var(--brand-wordmark-current);
  margin-left: var(--brand-wordmark-gap-current);
  background: url("brand/identity/kakasqa-wordmark.png") left center / contain no-repeat;
  opacity: var(--brand-wordmark-opacity);
  transform: translateX(var(--brand-wordmark-shift)) scale(var(--brand-wordmark-scale));
  transform-origin: left center;
}
.site-nav .brand .est-badge { display: none; }
.site-nav .brand:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}
@media (min-width: 641px) {
  .site-nav .brand {
    transform: translateX(calc(20px - max(22px, calc(50vw - 660px))));
  }
}
@media (max-width: 640px) {
  .site-nav {
    --brand-wordmark-max: 100;
    --brand-wordmark-gap-max: 5;
    --brand-wordmark-current: 100px;
    --brand-wordmark-gap-current: 5px;
  }
  .site-nav .brand { min-height: 40px; }
  .site-nav .brand::before {
    width: 44px;
    height: 36px;
    flex-basis: 44px;
  }
  .site-nav .brand::after { height: 25px; }
}
