:root {
  --bg: #030711;
  --bg-soft: #07111f;
  --panel: rgba(10, 22, 39, .72);
  --panel-strong: rgba(8, 16, 30, .9);
  --line: rgba(139, 217, 255, .15);
  --line-strong: rgba(69, 229, 255, .42);
  --text: #eaf7ff;
  --muted: #9db4cc;
  --muted-2: #71879f;
  --cyan: #45e5ff;
  --cyan-soft: #9df3ff;
  --blue: #3b82f6;
  --violet: #8b5cf6;
  --green: #7cffe6;
  --danger: #ff7e9d;
  --radius: 24px;
  --shadow: 0 24px 80px rgba(0, 0, 0, .38);
  --glow: 0 0 38px rgba(69, 229, 255, .18);
  --ease: cubic-bezier(.2, .8, .2, 1);
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  background:
    radial-gradient(circle at 18% -4%, rgba(69, 229, 255, .18), transparent 34%),
    radial-gradient(circle at 88% 8%, rgba(139, 92, 246, .20), transparent 30%),
    radial-gradient(circle at 50% 58%, rgba(59, 130, 246, .07), transparent 42%),
    linear-gradient(rgba(94, 231, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 231, 255, .045) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, auto, 48px 48px, 48px 48px, auto;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(180deg, rgba(3,7,17,0) 0%, rgba(3,7,17,.18) 48%, rgba(3,7,17,.72) 100%);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; line-height: 1.16; letter-spacing: -.035em; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }

.section-shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.section {
  padding: 112px 0;
  scroll-margin-top: 96px;
}

.glass {
  background:
    linear-gradient(180deg, rgba(15, 30, 51, .78), rgba(5, 11, 21, .66));
  border: 1px solid var(--line);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--cyan-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 28px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 16px rgba(69,229,255,.7);
}

.gradient-text {
  color: transparent;
  background: linear-gradient(90deg, #fff 0%, var(--cyan) 38%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #021019;
  background: linear-gradient(135deg, var(--cyan), #7df9ff 42%, #a78bfa);
  box-shadow: 0 14px 34px rgba(69, 229, 255, .22);
}
.btn-primary:hover { box-shadow: 0 18px 48px rgba(69, 229, 255, .34); }
.btn-ghost {
  color: var(--text);
  border-color: rgba(157,243,255,.28);
  background: rgba(7, 17, 31, .58);
}
.btn-ghost:hover { border-color: var(--line-strong); box-shadow: var(--glow); }
.btn-large { min-height: 54px; padding-inline: 28px; font-size: 17px; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  background: rgba(3, 7, 17, .58);
  border-bottom: 1px solid rgba(139,217,255,.09);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled {
  background: rgba(3, 7, 17, .86);
  border-bottom-color: rgba(69,229,255,.18);
  box-shadow: 0 14px 40px rgba(0,0,0,.28);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .06em;
}
.brand strong { color: var(--cyan); font-weight: 900; }
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(69,229,255,.95), rgba(139,92,246,.95));
  box-shadow: 0 0 22px rgba(69,229,255,.35);
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px 7px;
  border: 2px solid #021019;
  border-top-color: transparent;
  border-radius: 4px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
}
.site-nav a { transition: color .2s ease; }
.site-nav a:hover, .site-nav a.is-active { color: var(--cyan-soft); }
.site-nav .nav-cta {
  color: #031019;
  background: var(--cyan);
  padding: 9px 16px;
  border-radius: 999px;
  font-weight: 800;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(7,17,31,.7);
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  border-radius: 99px;
  background: var(--text);
}

/* Hero */
.hero {
  min-height: 760px;
  padding: 142px 0 82px;
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 54px;
  align-items: center;
}
.hero-lead {
  color: var(--muted);
  font-size: 17px;
  max-width: 620px;
}
.hero h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 5.2vw, 72px);
  line-height: 1.05;
  letter-spacing: -.055em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 46px 0 0;
}
.hero-stats div {
  padding: 18px 16px;
  border-radius: 18px;
  background: rgba(7,17,31,.56);
  border: 1px solid rgba(139,217,255,.11);
}
.hero-stats dt {
  font-size: 24px;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: -.03em;
}
.hero-stats dd {
  margin: 4px 0 0;
  color: var(--muted-2);
  font-size: 13px;
}
.hero-visual {
  position: relative;
  min-height: 590px;
  display: grid;
  place-items: center;
}
.device-image {
  position: relative;
  z-index: 2;
  width: min(100%, 735px);
  filter: drop-shadow(0 30px 60px rgba(0,0,0,.42)) drop-shadow(0 0 38px rgba(69,229,255,.13));
  animation: floatDevice 7s ease-in-out infinite;
}
.metric-chip {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(5, 14, 26, .78);
  border: 1px solid rgba(69,229,255,.24);
  box-shadow: 0 16px 38px rgba(0,0,0,.3), 0 0 28px rgba(69,229,255,.12);
  backdrop-filter: blur(16px);
}
.metric-chip strong { font-size: 17px; color: var(--cyan); }
.metric-chip span { font-size: 12px; color: var(--muted); }
.chip-a { top: 48px; right: 8px; animation: floatChip 6.2s ease-in-out infinite; }
.chip-b { bottom: 230px; left: -6px; animation: floatChip 7.4s .4s ease-in-out infinite; }
.chip-c { bottom: 72px; right: -4px; animation: floatChip 6.8s .8s ease-in-out infinite; }

.transcript-card {
  position: absolute;
  z-index: 4;
  top: 40px;
  left: 0;
  width: 260px;
  padding: 18px;
  border-radius: 20px;
  animation: floatChip 8s .2s ease-in-out infinite;
}
.transcript-head { display: flex; gap: 6px; margin-bottom: 14px; }
.transcript-head span {
  width: 9px; height: 9px; border-radius: 50%;
  background: rgba(69,229,255,.8);
}
.transcript-head span:nth-child(2) { background: rgba(139,92,246,.8); }
.transcript-head span:nth-child(3) { background: rgba(124,255,230,.7); }
.transcript-card p {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 13px;
}
.transcript-card b { color: var(--text); }
.transcript-card em { color: var(--cyan); font-style: normal; font-size: 12px; }
.line {
  height: 7px;
  margin-top: 9px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(69,229,255,.68), rgba(139,92,246,.18));
  opacity: .78;
}
.line.long { width: 92%; }
.line.short { width: 58%; }
.waveform {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 15px;
}
.waveform i {
  width: 4px;
  height: 12px;
  border-radius: 99px;
  background: var(--cyan);
  animation: wave 1.2s ease-in-out infinite;
}
.waveform i:nth-child(2) { height: 22px; animation-delay: .05s; background: var(--violet); }
.waveform i:nth-child(3) { height: 31px; animation-delay: .1s; }
.waveform i:nth-child(4) { height: 18px; animation-delay: .15s; background: var(--violet); }
.waveform i:nth-child(5) { height: 34px; animation-delay: .2s; }
.waveform i:nth-child(6) { height: 24px; animation-delay: .25s; background: var(--violet); }
.waveform i:nth-child(7) { height: 14px; animation-delay: .3s; }
.waveform i:nth-child(8) { height: 29px; animation-delay: .35s; background: var(--violet); }
.waveform i:nth-child(9) { height: 19px; animation-delay: .4s; }
.waveform i:nth-child(10) { height: 32px; animation-delay: .45s; background: var(--violet); }
.waveform i:nth-child(11) { height: 15px; animation-delay: .5s; }

.quick-strip {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(139,217,255,.1);
  border-bottom: 1px solid rgba(139,217,255,.1);
  background: rgba(4, 10, 20, .58);
  backdrop-filter: blur(14px);
}
.strip-track {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
}
.strip-track i { color: var(--cyan); font-size: 8px; opacity: .7; }

/* Section heading */
.section-heading {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-heading.align-left { margin-inline: 0; text-align: left; }
.section-heading h2 { font-size: clamp(30px, 3.6vw, 48px); }
.section-heading p:not(.eyebrow) { color: var(--muted); margin-top: 18px; font-size: 16px; }
.section-heading .btn { margin-top: 28px; }

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.feature-card, .scenario-card, .spec-card, .code-card {
  border-radius: var(--radius);
}
.feature-card {
  position: relative;
  min-height: 262px;
  padding: 28px;
  overflow: hidden;
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  background: radial-gradient(circle at 20% 0%, rgba(69,229,255,.18), transparent 34%);
  opacity: 0;
  transition: opacity .28s ease;
}
.feature-card:hover { transform: translateY(-7px); border-color: var(--line-strong); box-shadow: var(--shadow), 0 0 36px rgba(69,229,255,.12); }
.feature-card:hover::before { opacity: 1; }
.card-icon {
  position: relative;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 16px;
  color: var(--cyan);
  background: linear-gradient(135deg, rgba(69,229,255,.18), rgba(139,92,246,.16));
  border: 1px solid rgba(69,229,255,.22);
}
.card-icon svg { width: 25px; height: 25px; }
.feature-card h3, .scenario-card h3 { position: relative; font-size: 21px; margin-bottom: 12px; }
.feature-card p { position: relative; color: var(--muted); font-size: 15px; }

.details-section {
  background:
    radial-gradient(circle at 80% 20%, rgba(139,92,246,.13), transparent 32%),
    linear-gradient(180deg, rgba(7,17,31,.5), rgba(7,17,31,.78));
  border-block: 1px solid rgba(139,217,255,.08);
}
.detail-layout {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 72px;
  align-items: center;
}
.detail-list { display: grid; gap: 0; }
.detail-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  padding: 27px 0;
  border-bottom: 1px solid rgba(139,217,255,.1);
}
.detail-row:first-child { border-top: 1px solid rgba(139,217,255,.1); }
.detail-row > span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: var(--cyan);
  font-weight: 900;
  background: rgba(69,229,255,.08);
  border: 1px solid rgba(69,229,255,.17);
}
.detail-row h3 { font-size: 20px; margin-bottom: 7px; }
.detail-row p { color: var(--muted); font-size: 15px; }

/* Scenarios */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.scenario-card {
  position: relative;
  padding: 24px;
  background: linear-gradient(180deg, rgba(12, 25, 43, .72), rgba(5, 11, 21, .72));
  border: 1px solid rgba(139,217,255,.13);
  box-shadow: 0 18px 50px rgba(0,0,0,.22);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}
.scenario-card::after {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 0;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s var(--ease);
}
.scenario-card:hover { transform: translateY(-6px); border-color: rgba(69,229,255,.35); }
.scenario-card:hover::after { transform: scaleX(1); }
.scenario-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  color: var(--cyan);
}
.scenario-top svg { width: 34px; height: 34px; }
.scenario-top span { color: var(--muted-2); font-size: 13px; font-family: ui-monospace, Consolas, monospace; }
.scenario-card p { color: var(--muted); font-size: 14px; min-height: 118px; }
.scenario-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.scenario-card li {
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--cyan-soft);
  font-size: 12px;
  background: rgba(69,229,255,.08);
  border: 1px solid rgba(69,229,255,.12);
}
.fine-note {
  max-width: 900px;
  margin: 18px auto 0;
  color: var(--muted-2);
  font-size: 13px;
  text-align: center;
}
.extension-panel {
  margin-top: 22px;
  padding: 28px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.extension-panel h3 { font-size: 23px; margin-bottom: 8px; }
.extension-panel p { color: var(--muted); max-width: 680px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.tag-cloud span {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  background: rgba(139,92,246,.12);
  border: 1px solid rgba(139,92,246,.22);
}

/* Workflow */
.workflow-section {
  background:
    radial-gradient(circle at 15% 30%, rgba(69,229,255,.11), transparent 30%),
    rgba(5, 12, 23, .64);
  border-block: 1px solid rgba(139,217,255,.08);
}
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: workflow;
}
.workflow-grid li {
  position: relative;
  padding: 28px 24px;
  min-height: 220px;
  border-radius: var(--radius);
  background: rgba(8, 18, 33, .68);
  border: 1px solid rgba(139,217,255,.13);
  overflow: hidden;
}
.workflow-grid li::after {
  content: "";
  position: absolute;
  top: 38px;
  right: 0;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: .65;
}
.workflow-grid li:last-child::after { display: none; }
.workflow-grid span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--cyan);
  font-size: 14px;
  font-family: ui-monospace, Consolas, monospace;
  font-weight: 900;
  letter-spacing: .12em;
}
.workflow-grid h3 { font-size: 20px; margin-bottom: 10px; }
.workflow-grid p { color: var(--muted); font-size: 14px; }

/* Specs */
.spec-layout {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 20px;
  align-items: start;
}
.spec-side { display: grid; gap: 20px; }
.spec-card { padding: 28px; }
.spec-card h3 {
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(139,217,255,.1);
}
.spec-list { display: grid; gap: 0; }
.spec-list div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(139,217,255,.08);
}
.spec-list dt { color: var(--muted-2); font-size: 14px; }
.spec-list dd { margin: 0; color: var(--text); font-size: 14px; }
.check-list { display: grid; gap: 12px; }
.check-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  font-size: 14px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(69,229,255,.55);
}
.check-list.light li { color: #c9d9e8; }
.app-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.app-links a {
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--cyan-soft);
  font-size: 13px;
  border: 1px solid rgba(69,229,255,.22);
  background: rgba(69,229,255,.06);
}
.warning-card { border-color: rgba(255,126,157,.22); }
.warning-card .check-list li::before { background: var(--danger); box-shadow: 0 0 14px rgba(255,126,157,.45); }

/* Developer */
.developer-section {
  padding: 110px 0;
  background:
    radial-gradient(circle at 85% 35%, rgba(69,229,255,.13), transparent 30%),
    linear-gradient(180deg, rgba(4, 10, 20, .2), rgba(7,17,31,.76));
  border-block: 1px solid rgba(139,217,255,.08);
}
.developer-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 58px;
  align-items: center;
}
.developer-copy h2 { font-size: clamp(30px, 3.4vw, 46px); margin-bottom: 18px; }
.developer-copy p { color: var(--muted); margin-bottom: 24px; }
.developer-copy .check-list { margin-bottom: 30px; }
.code-card {
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(8, 18, 33, .96), rgba(2, 7, 14, .98));
  border-color: rgba(69,229,255,.22);
  box-shadow: 0 28px 80px rgba(0,0,0,.5), 0 0 44px rgba(69,229,255,.1);
}
.code-dots { display: flex; gap: 7px; padding: 4px 4px 18px; }
.code-dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.18); }
.code-dots span:first-child { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #febc2e; }
.code-dots span:nth-child(3) { background: #28c840; }
pre {
  margin: 0;
  overflow: auto;
  color: #c7f7ff;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.75;
}

/* FAQ */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}
.faq-list details {
  border-radius: 18px;
  background: rgba(8, 18, 33, .66);
  border: 1px solid rgba(139,217,255,.13);
  overflow: hidden;
}
.faq-list details[open] { border-color: rgba(69,229,255,.34); box-shadow: 0 0 30px rgba(69,229,255,.08); }
.faq-list summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 21px 24px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  position: relative;
  border-radius: 50%;
  border: 1px solid rgba(69,229,255,.35);
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 2px;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
details[open] .faq-icon::after { transform: translate(-50%, -50%) rotate(0); }
.faq-panel { padding: 0 24px 22px; color: var(--muted); font-size: 15px; }

/* Contact */
.contact-cta {
  padding: 92px 0;
}
.contact-inner {
  padding: 56px 34px;
  border-radius: 32px;
  text-align: center;
  background:
    radial-gradient(circle at 20% 0%, rgba(69,229,255,.18), transparent 36%),
    radial-gradient(circle at 85% 100%, rgba(139,92,246,.18), transparent 38%),
    linear-gradient(180deg, rgba(10, 23, 41, .92), rgba(5, 11, 21, .94));
  border: 1px solid rgba(69,229,255,.2);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.07);
}
.contact-inner .eyebrow { justify-content: center; }
.contact-inner h2 { font-size: clamp(28px, 3.4vw, 44px); margin-bottom: 14px; }
.contact-inner p { color: var(--muted); margin-bottom: 28px; }

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(139,217,255,.1);
  background: rgba(3, 7, 17, .82);
}
.footer-grid {
  padding: 54px 0 34px;
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: 42px;
}
.site-footer p { color: var(--muted); font-size: 14px; margin-top: 16px; max-width: 420px; }
.footer-nav, .footer-contact { display: grid; gap: 10px; align-content: start; }
.footer-nav a, .footer-contact a { color: var(--muted); font-size: 14px; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--cyan); }
.footer-contact p { margin: 0 0 2px; color: var(--text); font-weight: 800; }
.footer-contact a { color: var(--cyan); font-size: 17px; font-weight: 800; }
.footer-bottom {
  padding: 20px 0 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(139,217,255,.08);
  color: var(--muted-2);
  font-size: 12px;
}

.js-enabled .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes floatDevice {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-14px) rotate(.4deg); }
}
@keyframes floatChip {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes wave {
  0%, 100% { transform: scaleY(.55); opacity: .65; }
  50% { transform: scaleY(1); opacity: 1; }
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

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


/* Enhanced immersive layer */
main { position: relative; z-index: 1; }
#ambientCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .68;
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 100;
  pointer-events: none;
  background: rgba(69, 229, 255, .06);
}
.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet), #fff);
  box-shadow: 0 0 18px rgba(69,229,255,.8);
  border-radius: 0 99px 99px 0;
}
.back-to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 70;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(69,229,255,.28);
  border-radius: 50%;
  color: var(--cyan);
  background: rgba(5, 14, 26, .78);
  box-shadow: 0 16px 42px rgba(0,0,0,.38), 0 0 26px rgba(69,229,255,.12);
  backdrop-filter: blur(14px);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(16px) scale(.92);
  transition: opacity .25s ease, visibility .25s ease, transform .25s ease, border-color .25s ease;
}
.back-to-top[hidden] { display: none; }
.back-to-top.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0) scale(1); }
.back-to-top:hover { border-color: var(--cyan); transform: translateY(-3px) scale(1.04); }
.back-to-top svg { width: 21px; height: 21px; }

.hero-visual { perspective: 1200px; transform-style: preserve-3d; }
.hero-visual.tilt-ready,
.js-enabled .hero-visual.reveal.tilt-ready.is-visible {
  transition: transform .2s ease-out;
  transform: perspective(1100px) rotateX(var(--hero-rx, 0deg)) rotateY(var(--hero-ry, 0deg));
}
.hero-orbit {
  position: absolute;
  z-index: 1;
  border-radius: 50%;
  pointer-events: none;
  opacity: .55;
}
.orbit-a {
  width: 610px;
  height: 610px;
  border: 1px dashed rgba(69,229,255,.22);
  animation: orbitSpin 28s linear infinite;
}
.orbit-b {
  width: 470px;
  height: 470px;
  border: 1px solid rgba(139,92,246,.18);
  box-shadow: inset 0 0 42px rgba(139,92,246,.08);
  animation: orbitSpin 20s linear infinite reverse;
}
.hero-scanline {
  position: absolute;
  z-index: 1;
  left: 12%;
  right: 12%;
  height: 2px;
  top: 22%;
  background: linear-gradient(90deg, transparent, rgba(69,229,255,.8), transparent);
  filter: blur(.3px);
  box-shadow: 0 0 24px rgba(69,229,255,.65);
  animation: scanSweep 4.8s ease-in-out infinite;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 6%;
  z-index: 0;
  border-radius: 50%;
  background: radial-gradient(circle at var(--spot-x, 50%) var(--spot-y, 40%), rgba(69,229,255,.16), transparent 38%);
  pointer-events: none;
}
.hero-stats div {
  position: relative;
  overflow: hidden;
}
.hero-stats div::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 20%, rgba(255,255,255,.12) 48%, transparent 70%);
  transform: translateX(-110%);
  transition: transform .7s ease;
}
.hero-stats div:hover::after { transform: translateX(110%); }

/* Gallery */
.gallery-section {
  padding-top: 94px;
  padding-bottom: 94px;
  background:
    radial-gradient(circle at 50% 0%, rgba(69,229,255,.10), transparent 34%),
    rgba(4, 10, 20, .34);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  perspective: 1200px;
}
.gallery-card {
  position: relative;
  padding: 16px;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: border-color .28s ease, box-shadow .28s ease;
}
.gallery-card.featured-gallery {
  border-color: rgba(69,229,255,.3);
  box-shadow: var(--shadow), 0 0 42px rgba(69,229,255,.11);
}
.gallery-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  opacity: 0;
  background:
    radial-gradient(420px circle at var(--pointer-x, 50%) var(--pointer-y, 0%), rgba(69,229,255,.16), transparent 42%);
  transition: opacity .25s ease;
  pointer-events: none;
}
.gallery-card:hover::before { opacity: 1; }
.gallery-image-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 1100 / 760;
  background: #050c17;
  border: 1px solid rgba(139,217,255,.1);
  transform: translateZ(24px);
}
.gallery-image-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 20%, rgba(255,255,255,.13) 48%, transparent 72%);
  transform: translateX(-120%);
  transition: transform .85s ease;
}
.gallery-card:hover .gallery-image-wrap::after { transform: translateX(120%); }
.gallery-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s var(--ease), filter .7s ease;
}
.gallery-card:hover .gallery-image-wrap img {
  transform: scale(1.055);
  filter: saturate(1.16) contrast(1.04);
}
.image-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--cyan-soft);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
  background: rgba(3, 9, 17, .72);
  border: 1px solid rgba(69,229,255,.22);
  backdrop-filter: blur(10px);
}
.gallery-copy {
  position: relative;
  z-index: 1;
  padding: 20px 8px 8px;
  transform: translateZ(18px);
}
.gallery-copy h3 { font-size: 22px; margin-bottom: 10px; }
.gallery-copy p { color: var(--muted); font-size: 14px; min-height: 72px; }
.mini-spec {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.mini-spec span {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--cyan-soft);
  font-size: 12px;
  font-weight: 700;
  background: rgba(69,229,255,.08);
  border: 1px solid rgba(69,229,255,.13);
}

/* Interactive cards */
.feature-card, .scenario-card, .code-card { transform-style: preserve-3d; }
.tilt-ready {
  transition: opacity .7s var(--ease), transform .16s ease-out, border-color .28s var(--ease), box-shadow .28s var(--ease);
  will-change: transform;
}
.card-pointer {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(260px circle at var(--pointer-x, 50%) var(--pointer-y, 50%), rgba(69,229,255,.15), transparent 48%);
  transition: opacity .22s ease;
}
.card-pointer.is-active { opacity: 1; }
.feature-card .card-icon,
.scenario-top,
.scenario-card h3,
.scenario-card p,
.scenario-card ul,
.code-card pre,
.code-dots { position: relative; z-index: 1; }

.code-card {
  position: relative;
  overflow: hidden;
}
.code-card::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: conic-gradient(from var(--code-angle, 0deg), transparent 0 62%, rgba(69,229,255,.35), rgba(139,92,246,.35), transparent 86%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.code-card:hover::after { opacity: 1; animation: codeSpin 4s linear infinite; }
.code-card pre, .code-dots { position: relative; z-index: 1; }

.btn {
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: "";
  position: absolute;
  top: -60%;
  bottom: -60%;
  width: 34%;
  left: -45%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
  transform: skewX(-18deg);
  transition: left .65s ease;
}
.btn:hover::after { left: 115%; }

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes scanSweep {
  0%, 100% { top: 18%; opacity: .15; }
  50% { top: 78%; opacity: .9; }
}
@keyframes codeSpin {
  to { --code-angle: 360deg; }
}
@property --code-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@media (hover: hover) and (pointer: fine) {
  .feature-card.tilt-ready:hover,
  .scenario-card.tilt-ready:hover,
  .gallery-card.tilt-ready:hover,
  .code-card.tilt-ready:hover {
    transform: perspective(950px) translateY(-6px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  }
}

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; gap: 20px; min-height: auto; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { max-width: 760px; margin-inline: auto; }
  .hero-visual { min-height: 540px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-copy p { min-height: 0; }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .workflow-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .workflow-grid li::after { display: none; }
  .detail-layout, .developer-grid, .spec-layout { grid-template-columns: 1fr; }
  .detail-layout { gap: 34px; }
  .section-heading.align-left { text-align: center; margin-inline: auto; }
  .section-heading.align-left .eyebrow { justify-content: center; }
}

@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .site-header { padding-inline: 20px; }
  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: grid;
    gap: 4px;
    padding: 14px;
    border-radius: 20px;
    background: rgba(4, 10, 20, .96);
    border: 1px solid rgba(69,229,255,.18);
    box-shadow: 0 24px 70px rgba(0,0,0,.42);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .22s ease, transform .22s ease;
  }
  .site-nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-nav a { padding: 11px 12px; border-radius: 12px; }
  .site-nav a:hover { background: rgba(69,229,255,.08); }
  .site-nav .nav-cta { text-align: center; margin-top: 6px; }
  .extension-panel { align-items: flex-start; flex-direction: column; }
  .tag-cloud { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 680px) {
  .section-shell { width: min(100% - 28px, 1180px); }
  .section { padding: 78px 0; }
  .hero { padding-top: 116px; }
  .hero h1 { font-size: clamp(36px, 11vw, 48px); }
  .hero-lead { font-size: 15px; }
  .hero-stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-visual { min-height: auto; margin-top: 12px; }
  .device-image { animation: none; }
  .hero-orbit, .hero-scanline { display: none; }
  .back-to-top { right: 16px; bottom: 16px; }
  .transcript-card, .metric-chip { display: none; }
  .strip-track {
    justify-content: center;
    flex-wrap: wrap;
    white-space: normal;
    overflow: visible;
    padding-block: 16px;
    row-gap: 10px;
  }
  .strip-track i { display: none; }
  .feature-grid, .scenario-grid, .workflow-grid { grid-template-columns: 1fr; }
  .scenario-card p { min-height: 0; }
  .feature-card { padding: 23px; min-height: 0; }
  .spec-card { padding: 22px; }
  .spec-list div { grid-template-columns: 1fr; gap: 4px; }
  .detail-row { grid-template-columns: 1fr; gap: 12px; }
  .contact-inner { padding: 38px 18px; }
  .footer-bottom { flex-direction: column; }
  .hero-actions .btn, .contact-inner .btn { width: 100%; }
  pre { font-size: 12px; }
}