:root {
  --paper: #f5fbff;
  --paper-2: #ffffff;
  --ink: #07306f;
  --muted: #5d708c;
  --line: rgba(0, 175, 220, 0.2);
  --blue: #0057b8;
  --blue-deep: #052d82;
  --cyan: #17cbea;
  --ice: #dffaff;
  --shadow: 0 28px 90px rgba(0, 81, 184, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body[data-page="faq"] {
  background:
    linear-gradient(90deg, rgba(0, 87, 184, 0.045) 1px, transparent 1px) 0 0 / 76px 76px,
    linear-gradient(180deg, rgba(0, 174, 233, 0.045) 1px, transparent 1px) 0 0 / 76px 76px,
    radial-gradient(circle at 82% 10%, rgba(23, 203, 234, 0.28), transparent 28rem),
    radial-gradient(circle at 16% 18%, rgba(0, 87, 184, 0.14), transparent 24rem),
    linear-gradient(180deg, #ffffff 0%, #eefaff 58%, #f7fcff 100%),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-tc, Arial, Helvetica, sans-serif);
  overflow-x: hidden;
}

body[data-page="faq"]::before {
  display: none;
}

html[lang="zh-Hans"] body[data-page="faq"] {
  font-family: var(--font-sc, Arial, Helvetica, sans-serif);
}

html[lang="en"] body[data-page="faq"] {
  font-family: var(--font-en, Arial, Helvetica, sans-serif);
}

body[data-page="faq"] .faq-shell {
  padding-top: 12px;
}

/* landing.css first; neutralize leftover chrome rules below */
body[data-page="faq"] .brand-logo {
  width: auto;
  height: var(--brand-logo-h, 34px);
  object-fit: unset;
  filter: none;
}

body[data-page="faq"] .language-switch {
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--cyan-edge, #3cc5ff);
  border-radius: 999px;
  background: var(--white, #fff);
}

body[data-page="faq"] .language-switch button {
  min-width: 40px;
  height: 36px;
  padding: 0 12px;
  color: var(--ink, #202020);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
}

body[data-page="faq"] .language-switch button.active {
  background: var(--blue-deep, #002a8c);
  color: var(--white, #fff);
}

/* Shared footer (landing) — keep FAQ content styles below */
a { color: inherit; text-decoration: none; }
.site-shell { min-height: 100vh; overflow: hidden; }
.nav {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: grid;
  width: min(1180px, calc(100% - 32px));
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 10px 12px;
  border: 1px solid rgba(23, 203, 234, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 55px rgba(0, 87, 184, 0.12);
  backdrop-filter: blur(24px) saturate(1.2);
  transform: translateX(-50%);
}
.brand, .nav-links, .nav-actions, .brand-strip, .hero-actions, .window-top, .use-case-list, .final-cta {
  display: flex;
  align-items: center;
}
.brand { gap: 11px; }
.brand-logo {
  width: 116px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(0, 174, 233, 0.18));
}
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; color: var(--blue-deep); }
.brand small { margin-top: 2px; color: var(--muted); font-size: 11px; }
.nav-links { gap: 10px; justify-content: flex-end; justify-self: end; }
.nav-links a, .nav-cta {
  min-height: 38px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.nav-links a:hover, .nav-links a:focus-visible { border-color: var(--line); color: var(--ink); }
.nav-cta {
  justify-self: end;
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  box-shadow: 0 12px 28px rgba(0, 174, 233, 0.24);
  color: white;
}
.nav-actions { justify-self: end; gap: 10px; }
.language-switch {
  display: flex;
  gap: 3px;
  padding: 4px;
  border: 1px solid rgba(23, 203, 234, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
}
.language-switch button, .mobile-menu-lang button {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}
.language-switch button { min-width: 34px; height: 30px; }
.language-switch button.active, .mobile-menu-lang button.active { background: var(--blue-deep); color: white; }
.language-switch button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.mobile-menu-toggle, .mobile-menu-backdrop, .mobile-menu { display: none; }
.hero {
  position: relative;
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 0.82fr);
  gap: 26px;
  align-items: center;
  padding: 138px max(28px, calc((100vw - 1180px) / 2)) 68px;
}
.hero::after {
  position: absolute;
  right: -9vw;
  bottom: -16vh;
  width: 58vw;
  height: 38vh;
  border: 24px solid rgba(23, 203, 234, 0.2);
  border-radius: 999px;
  content: "";
  opacity: 0.8;
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 2; }
.kicker, .section-kicker, .panel-label, .app-card span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  padding: 8px 11px;
  border: 1px solid rgba(23, 203, 234, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
}
.pulse {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(23, 203, 234, 0.18);
}
h1, h2, h3, p { margin: 0; }
h1 {
  max-width: min(820px, 100%);
  color: var(--blue-deep);
  font-size: clamp(44px, 5.1vw, 76px);
  font-weight: 780;
  line-height: 1;
  text-shadow: 0 16px 42px rgba(0, 87, 184, 0.11);
}
.site-shell[lang="zh-Hant"] h1, .site-shell[lang="zh-Hans"] h1 { line-height: 1.12; }
.title-line { display: block; max-width: 100%; text-wrap: balance; }
h1 .title-line { white-space: nowrap; text-wrap: nowrap; }
.hero-copy > p {
  max-width: 620px;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.5;
}
.hero-actions { flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border: 1px solid rgba(0, 87, 184, 0.22);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}
.button.primary {
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  box-shadow: 0 18px 38px rgba(0, 174, 233, 0.25);
  color: var(--paper-2);
}
.button.secondary { background: rgba(255, 255, 255, 0.72); color: var(--ink); }
.brand-strip {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
  color: #60718b;
  font-size: 13px;
  font-weight: 800;
}
.brand-strip > span:first-child { margin-right: 4px; }
.brand-logo-tile {
  display: grid;
  width: 132px;
  height: 50px;
  place-items: center;
  border: 1px solid rgba(23, 203, 234, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 30px rgba(0, 87, 184, 0.07);
}
.brand-logo-tile img { display: block; width: auto; height: auto; object-fit: contain; }
.brand-logo-tile.hkt img { max-width: 70px; max-height: 28px; }
.brand-logo-tile.csl img { max-width: 54px; max-height: 30px; transform: translateY(-2px); }
.brand-logo-tile.ten img { max-width: 72px; max-height: 24px; }
.hero-stage { position: relative; min-height: 610px; perspective: 1600px; }
.hero-logo-orbit {
  position: absolute;
  top: 0;
  right: -64px;
  z-index: 0;
  width: min(520px, 78vw);
  opacity: 0.2;
  filter: blur(0.2px) saturate(1.12);
  transform: rotate(-8deg);
}
.flow-rail {
  position: absolute;
  inset: 54px -14px auto 18px;
  height: 500px;
  border: 3px solid rgba(23, 203, 234, 0.45);
  border-radius: 999px;
  box-shadow: inset 0 0 40px rgba(23, 203, 234, 0.12), 0 0 50px rgba(23, 203, 234, 0.2);
  transform: rotate(-8deg);
}
.flow-rail::before, .flow-rail::after {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--blue);
  content: "";
}
.flow-rail::before { top: -10px; left: 18%; }
.flow-rail::after { right: 15%; bottom: -10px; background: var(--cyan); }
.window {
  border: 1px solid rgba(23, 203, 234, 0.25);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(224, 250, 255, 0.74));
  box-shadow: var(--shadow);
  backdrop-filter: blur(26px) saturate(1.15);
}
.hub-window {
  position: absolute;
  z-index: 2;
  top: 72px;
  right: 0;
  width: min(650px, 100%);
  overflow: hidden;
  transform: rotateY(-13deg) rotateX(3deg);
  transform-origin: center;
}
.window-top {
  gap: 7px;
  min-height: 44px;
  padding: 0 15px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
}
.dot { width: 10px; height: 10px; border-radius: 999px; }
.red { background: var(--blue); }
.amber { background: #54f3ff; }
.cyan { background: var(--cyan); }
.window-title { margin-left: auto; color: var(--muted); font-size: 12px; font-weight: 800; }
.hub-grid { display: grid; grid-template-columns: 168px 1fr; min-height: 454px; }
[data-feature="flow"][hidden] { display: none !important; }
.sidebar, .chat-panel, .flow-panel { padding: 16px; }
.sidebar {
  border-right: 1px solid var(--line);
  background: radial-gradient(circle at 72% 8%, rgba(23, 203, 234, 0.42), transparent 34%), linear-gradient(180deg, #07306f, #061e4a);
  color: white;
}
.search, .side-item, .prompt-bar { min-height: 36px; padding: 10px; font-size: 12px; }
.search { margin-bottom: 14px; border-radius: 16px; background: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.64); }
.side-item { margin-top: 8px; border-radius: 16px; color: rgba(255, 255, 255, 0.72); font-weight: 700; }
.side-item.active { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: white; }
.side-item.muted { border: 1px dashed rgba(255, 255, 255, 0.22); color: rgba(255, 255, 255, 0.42); }
.chat-panel {
  background: radial-gradient(circle at 78% 4%, rgba(23, 203, 234, 0.22), transparent 32%), linear-gradient(180deg, rgba(23, 203, 234, 0.08), transparent 42%), rgba(255, 255, 255, 0.9);
}
.panel-label { margin-bottom: 18px; }
.message {
  max-width: 86%;
  margin-bottom: 12px;
  padding: 13px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.4;
  border-radius: 18px;
}
.message.user { margin-left: auto; background: linear-gradient(135deg, var(--blue-deep), var(--blue)); color: white; }
.message.ai { border: 1px solid var(--line); background: white; }
.message.ai span:first-child { display: block; margin-bottom: 6px; color: var(--blue); font-weight: 900; }
.prompt-bar { margin-top: 86px; border: 1px solid var(--line); border-radius: 999px; background: white; color: var(--muted); }
.flow-panel { position: relative; border-left: 1px solid var(--line); background: rgba(239, 252, 255, 0.82); }
.flow-panel::before {
  position: absolute;
  top: 92px;
  left: 50%;
  width: 2px;
  height: 250px;
  background: linear-gradient(var(--blue), var(--cyan));
  content: "";
  transform: translateX(-50%);
}
.node {
  position: relative;
  z-index: 1;
  margin: 17px auto;
  padding: 11px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  font-size: 12px;
  font-weight: 900;
  text-align: center;
  box-shadow: 0 10px 26px rgba(0, 87, 184, 0.08);
}
.node.app { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: white; }
.node.launch { background: linear-gradient(135deg, var(--cyan), #78f7ff); color: var(--blue-deep); }
.node.check { background: var(--ice); color: var(--blue-deep); }
.section {
  position: relative;
  z-index: 3;
  padding: 104px max(28px, calc((100vw - 1180px) / 2));
}
.section-head { display: block; max-width: 760px; margin-bottom: 38px; }
h2 { margin-top: 12px; font-size: clamp(30px, 3.4vw, 48px); font-weight: 760; line-height: 1.05; }
.site-shell[lang="zh-Hant"] h2, .site-shell[lang="zh-Hans"] h2 { line-height: 1.16; }
.section-head p, .flow-copy p, .trust-grid p, .final-cta p { color: var(--muted); font-size: 17px; line-height: 1.55; }
.section-head p { max-width: 690px; margin-top: 18px; }
.apps-section {
  background: radial-gradient(circle at 86% 14%, rgba(23, 203, 234, 0.16), transparent 24rem), linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 251, 255, 0.96));
}
.app-grid { display: grid; grid-template-columns: repeat(5, minmax(190px, 1fr)); gap: 12px; }
.app-card {
  position: relative;
  min-height: 310px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: radial-gradient(circle at 76% 0%, rgba(23, 203, 234, 0.2), transparent 34%), rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 45px rgba(0, 87, 184, 0.07);
  overflow: hidden;
}
.app-card::after {
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 118px;
  height: 118px;
  border: 2px solid rgba(23, 203, 234, 0.34);
  border-radius: 999px;
  content: "";
  transform: rotate(24deg);
}
.app-card:hover { background: white; transform: translateY(-4px); transition: transform 180ms ease, background 180ms ease; }
.app-signal {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  margin-bottom: 42px;
  border-radius: 50%;
  background: radial-gradient(circle at 28% 22%, white 0 8%, rgba(255, 255, 255, 0.62) 9% 16%, transparent 28%), linear-gradient(145deg, var(--cyan), var(--blue) 62%, var(--blue-deep));
  box-shadow: inset 0 -14px 22px rgba(0, 48, 120, 0.28), 0 18px 30px rgba(0, 174, 233, 0.24);
  color: white;
  font-size: 11px;
  font-weight: 900;
}
.app-card h3 { margin-top: 12px; font-size: 20px; line-height: 1.04; }
.app-card p { margin-top: 14px; color: var(--muted); font-size: 14px; line-height: 1.48; }
.app-card.future { background: radial-gradient(circle at 24% 12%, rgba(23, 203, 234, 0.5), transparent 28%), linear-gradient(145deg, #07306f, #051b46 72%); color: white; }
.app-card.future p, .app-card.future span { color: rgba(255, 255, 255, 0.72); }
.flow-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 0.82fr);
  gap: 54px;
  align-items: center;
  background: radial-gradient(circle at 88% 18%, rgba(23, 203, 234, 0.2), transparent 24rem), var(--paper-2);
}
.use-case-list { flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.use-case-list span {
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.flow-board {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: radial-gradient(circle at 88% 8%, rgba(23, 203, 234, 0.28), transparent 30%), linear-gradient(135deg, rgba(0, 87, 184, 0.1), transparent 28%), linear-gradient(315deg, rgba(23, 203, 234, 0.16), transparent 34%), var(--paper);
  box-shadow: 0 24px 62px rgba(0, 87, 184, 0.11);
}
.flow-board::before {
  position: absolute;
  top: 42px;
  bottom: 42px;
  left: 52px;
  width: 2px;
  background: linear-gradient(var(--blue), var(--cyan));
  content: "";
}
.flow-step {
  position: relative;
  display: grid;
  min-height: 74px;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 34px rgba(0, 87, 184, 0.08);
}
.flow-step span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--blue), var(--cyan));
  color: white;
  font-size: 12px;
  font-weight: 900;
}
.flow-step strong { font-size: 16px; }
.trust-section { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(440px, 1fr); gap: 56px; }
.trust-grid { display: grid; gap: 12px; }
.trust-grid div {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 16px 42px rgba(0, 87, 184, 0.06);
}
.trust-grid strong { display: block; margin-bottom: 10px; font-size: 18px; }
.final-cta {
  justify-content: space-between;
  gap: 28px;
  margin: 0 max(28px, calc((100vw - 1180px) / 2)) 36px;
  padding: 40px;
  border-radius: 36px;
  background: radial-gradient(circle at 82% 18%, rgba(23, 203, 234, 0.58), transparent 28%), linear-gradient(145deg, #07306f, #041b42 72%);
  color: white;
  box-shadow: 0 24px 70px rgba(0, 87, 184, 0.2);
}
.final-cta p { max-width: 560px; color: rgba(255, 255, 255, 0.68); }
.final-cta .section-kicker { color: white; }
.final-cta .button.primary { border-color: white; background: white; color: var(--ink); box-shadow: none; }
.faq-shell { overflow: visible; }
.faq-page {
  width: min(var(--max, 1180px), calc(100% - 2 * var(--side, 28px)));
  margin-left: auto;
  margin-right: auto;
  padding: 40px 0 48px;
}
.faq-page-head { max-width: 760px; margin-bottom: 42px; }
.faq-page-head h1 {
  margin: 18px 0 0;
  color: var(--blue-deep);
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.15;
}
.faq-page-head p {
  max-width: 640px;
  margin-top: 14px;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.55;
}
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 48px;
  align-items: start;
}
.faq-content { display: grid; gap: 44px; min-width: 0; }
.faq-group { scroll-margin-top: 100px; }
.faq-group h2 {
  margin: 0 0 16px;
  color: var(--blue-deep);
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.25;
}
.faq-group-items { display: grid; gap: 10px; }
.faq-item {
  border: 1px solid rgba(0, 175, 220, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 28px rgba(0, 87, 184, 0.05);
  overflow: hidden;
}
.faq-item summary {
  position: relative;
  padding: 16px 52px 16px 18px;
  cursor: pointer;
  color: var(--ink);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.4;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 16px;
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 999px;
  background: var(--ice);
  color: var(--blue);
  content: "+";
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  transform: translateY(-50%);
}
.faq-item[open] summary { color: var(--blue-deep); }
.faq-item[open] summary::after { content: "−"; background: var(--blue); color: white; }
.faq-item summary:hover { background: rgba(223, 250, 255, 0.45); }
.faq-answer {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.faq-answer ul, .faq-answer ol { margin: 10px 0 0; padding-left: 22px; }
.faq-answer li { margin-top: 5px; }
.faq-answer a { color: var(--blue); font-weight: 700; text-decoration: underline; }
.faq-toc {
  position: sticky;
  top: 110px;
  padding: 14px;
  border: 1px solid rgba(0, 175, 220, 0.16);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 42px rgba(0, 87, 184, 0.07);
}
.faq-toc-head { display: none; }
.faq-toc-links { display: grid; gap: 4px; }
.faq-toc a {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
}
.faq-toc a:hover,
.faq-toc a:focus-visible { background: var(--ice); color: var(--blue-deep); outline: 0; }
.faq-toc a.active { background: var(--ice); color: var(--blue); }
.faq-toc-toggle { display: none; }
.faq-toc-backdrop { display: none; }
.faq-updated {
  width: max(0px, calc(100% - 328px));
  max-width: 100%;
  margin: 36px 0 0;
  color: var(--muted);
  font-size: 12px;
  opacity: 0.7;
  text-align: right;
}
@media (max-width: 1060px) {
  .faq-layout { grid-template-columns: 1fr; }
  .faq-updated { width: 100%; }
  .faq-toc-backdrop.open {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: block;
    border: 0;
    background: rgba(4, 27, 66, 0.24);
    backdrop-filter: blur(4px);
  }
  .faq-toc {
    position: fixed;
    right: 16px;
    bottom: calc(var(--faq-floating-bottom, 24px) + 68px);
    top: auto;
    z-index: 80;
    width: min(320px, calc(100vw - 32px));
    max-height: min(64vh, 560px);
    overflow-y: auto;
    overscroll-behavior: contain;
    opacity: 0;
    pointer-events: none;
    transform: translateY(14px) scale(0.98);
    transform-origin: bottom right;
    transition: opacity 200ms ease, transform 200ms ease;
    backdrop-filter: blur(22px) saturate(1.15);
  }
  .faq-toc.open { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
  .faq-toc-head {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    padding: 4px 4px 10px;
    border-bottom: 1px solid var(--line);
    color: var(--blue-deep);
  }
  .faq-toc-head strong { font-size: 16px; }
  .faq-toc-close {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: white;
    color: var(--blue-deep);
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
  }
  .faq-toc a { min-height: 42px; display: flex; align-items: center; font-size: 14px; }
  .faq-toc-toggle {
    position: fixed;
    right: 16px;
    bottom: var(--faq-floating-bottom, 24px);
    z-index: 90;
    display: flex;
    width: 52px;
    height: 52px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: 1px solid rgba(23, 203, 234, 0.28);
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
    box-shadow: 0 16px 36px rgba(0, 87, 184, 0.3);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 200ms ease, transform 200ms ease;
  }
  .faq-toc-toggle span { display: block; width: 18px; height: 2px; border-radius: 999px; background: white; transition: transform 200ms ease, opacity 200ms ease; }
  .faq-toc-toggle.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .faq-toc-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .faq-toc-toggle.open span:nth-child(2) { opacity: 0; }
  .faq-toc-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}
@media (max-width: 720px) {
  .faq-page {
    width: calc(100% - 2 * var(--side, 16px));
    padding: 28px 0 36px;
  }
  .faq-page-head { margin-bottom: 28px; }
  .faq-content { gap: 34px; }
  body[data-page="faq"] .brand-logo {
    width: auto;
    height: var(--brand-logo-h, 28px);
  }
  body[data-page="faq"] .language-switch button {
    min-width: 34px;
    height: 32px;
    padding: 0 8px;
    font-size: 13px;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .pulse { animation: blink 1.8s ease-in-out infinite; }
  @keyframes blink { 50% { box-shadow: 0 0 0 10px rgba(23, 203, 234, 0.04); } }
}
@media (max-width: 1060px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
  .hero, .flow-section, .trust-section, .section-head { grid-template-columns: 1fr; }
  .hero { padding-top: 126px; }
  .hero-stage { min-height: 560px; }
  .hub-window { left: 0; right: auto; transform: none; }
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .nav {
    top: 10px;
    grid-template-columns: 1fr auto;
    width: calc(100% - 20px);
    gap: 10px;
    padding: 10px 12px;
  }
  .brand small, .nav-actions { display: none; }
  .brand-logo { width: 98px; height: 40px; }
  .brand strong { font-size: clamp(16px, 5.2vw, 22px); }
  .mobile-menu-toggle {
    display: flex;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border: 1px solid rgba(23, 203, 234, 0.28);
    border-radius: 999px;
    background: var(--blue-deep);
    box-shadow: 0 12px 28px rgba(0, 87, 184, 0.18);
    cursor: pointer;
  }
  .mobile-menu-toggle span { display: block; width: 18px; height: 2px; border-radius: 999px; background: white; }
  .mobile-menu-backdrop.open {
    position: fixed;
    inset: 0;
    z-index: 45;
    display: block;
    border: 0;
    background: rgba(4, 27, 66, 0.24);
    backdrop-filter: blur(4px);
  }
  .mobile-menu {
    position: fixed;
    top: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 50;
    display: grid;
    width: min(320px, calc(100vw - 24px));
    grid-template-rows: auto auto auto 1fr;
    gap: 18px;
    padding: 18px;
    border: 1px solid rgba(23, 203, 234, 0.28);
    border-radius: 28px;
    background: radial-gradient(circle at 82% 10%, rgba(23, 203, 234, 0.26), transparent 42%), rgba(255, 255, 255, 0.92);
    box-shadow: 0 28px 80px rgba(0, 48, 120, 0.28);
    opacity: 0;
    pointer-events: none;
    transform: translateX(22px);
    transition: opacity 180ms ease, transform 180ms ease;
    backdrop-filter: blur(26px) saturate(1.16);
  }
  .mobile-menu.open { opacity: 1; pointer-events: auto; transform: translateX(0); }
  .mobile-menu-head, .mobile-menu-links, .mobile-menu-lang { display: grid; }
  .mobile-menu-head { grid-template-columns: 1fr auto; align-items: center; gap: 12px; color: var(--blue-deep); }
  .mobile-menu-head strong { font-size: 20px; }
  .mobile-menu-head button {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: white;
    color: var(--blue-deep);
    cursor: pointer;
    font-size: 24px;
    line-height: 1;
  }
  .mobile-menu-links { gap: 8px; }
  .mobile-menu-links a {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--ink);
    font-weight: 800;
  }
  .mobile-menu-lang {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 5px;
    border: 1px solid rgba(23, 203, 234, 0.24);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
  }
  .mobile-menu-lang button { height: 36px; font-size: 13px; }
  .mobile-menu-cta { align-self: end; width: 100%; }
  .hero, .section { padding-left: 18px; padding-right: 18px; }
  h1 { max-width: 100%; font-size: clamp(36px, 10.5vw, 48px); line-height: 1.04; }
  .brand-strip { display: flex; width: min(100%, 328px); gap: 8px; }
  .brand-strip > span:first-child { width: 100%; }
  .brand-logo-tile { width: 96px; height: 38px; }
  .brand-logo-tile.hkt img { max-width: 56px; max-height: 22px; }
  .brand-logo-tile.csl img { max-width: 43px; max-height: 24px; transform: translateY(-1px); }
  .brand-logo-tile.ten img { max-width: 59px; max-height: 20px; }
  .hero-stage { min-height: 720px; }
  .flow-rail { inset: 28px 0 auto 0; height: 640px; }
  .hero-logo-orbit { top: 38px; right: -130px; width: 430px; opacity: 0.14; }
  .hub-grid { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: repeat(2, 1fr); border-right: 0; }
  .search { grid-column: 1 / -1; }
  .flow-panel { border-left: 0; border-top: 1px solid var(--line); }
  .prompt-bar { margin-top: 28px; }
  .app-grid { grid-template-columns: 1fr; }
  .app-card { min-height: 250px; }
  .final-cta {
    flex-direction: column;
    align-items: flex-start;
    margin-left: 18px;
    margin-right: 18px;
    padding: 26px;
  }
}

/* Shared footer — unused on FAQ (landing.css provides footer) */
body:not([data-page="faq"]) .site-footer {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) repeat(2, minmax(320px, 1fr));
  gap: 0;
  margin-top: 86px;
  border-top: 1px solid var(--line);
  background: #fff;
}
body:not([data-page="faq"]) .footer-brand,
body:not([data-page="faq"]) .footer-support { min-height: 148px; padding: 22px clamp(22px, 2.4vw, 38px); }
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; border-right: 1px solid var(--line); }
.footer-brand img { width: 82px; height: 42px; object-fit: contain; object-position: left center; }
.footer-brand strong { margin-top: 9px; color: var(--blue-deep); font-size: 18px; }
.footer-brand p,
.footer-support p { max-width: 310px; margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.footer-support { display: grid; grid-template-columns: minmax(0, 1fr) 88px; align-items: center; gap: 18px; border-right: 1px solid var(--line); }
.footer-support:last-of-type { border-right: 0; }
.footer-label { color: var(--blue); font-size: 12px; font-weight: 850; letter-spacing: 0; text-transform: uppercase; }
.footer-support h2 { margin-top: 6px; color: var(--blue-deep); font-size: 20px; line-height: 1.2; }
.footer-qr { width: 88px; height: 88px; padding: 5px; border: 1px solid var(--line); background: #fff; object-fit: contain; }
body:not([data-page="faq"]) .footer-copyright { grid-column: 1 / -1; margin: 0; padding: 11px clamp(22px, 2.4vw, 38px); border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

@media (max-width: 1060px) {
  body:not([data-page="faq"]) .site-footer { grid-template-columns: 1fr 1fr; }
  body:not([data-page="faq"]) .footer-brand { grid-column: 1 / -1; min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 720px) {
  body:not([data-page="faq"]) .site-footer { grid-template-columns: 1fr; margin-top: 64px; }
  body:not([data-page="faq"]) .footer-brand,
  body:not([data-page="faq"]) .footer-support { grid-column: auto; min-height: auto; padding: 22px 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  body:not([data-page="faq"]) .footer-support { grid-template-columns: minmax(0, 1fr) 82px; gap: 14px; }
  body:not([data-page="faq"]) .footer-qr { width: 82px; height: 82px; }
  body:not([data-page="faq"]) .footer-copyright { grid-column: auto; padding: 11px 18px; }
}

/* Ensure landing footer wins on FAQ */
body[data-page="faq"] .site-footer {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  margin: 96px 0 0;
  padding: 40px max(var(--side, 28px), 28px) 32px;
  border-top: 1px solid #e6e8ec;
  border-radius: 0;
  background: #fff;
  box-sizing: border-box;
  overflow: visible;
}