:root {
  --bg: #080b12;
  --bg-soft: #0d121c;
  --surface: #111925;
  --surface-strong: #162130;
  --surface-translucent: rgba(17, 25, 37, 0.76);
  --surface-subtle: rgba(255, 255, 255, 0.018);
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);
  --text: #f7f8fb;
  --muted: #a9b4c3;
  --faint: #748094;
  --violet: #a78bfa;
  --cyan: #67e8f9;
  --green: #6ee7b7;
  --yellow: #facc15;
  --danger: #fb7185;
  --header-bg: rgba(8, 11, 18, 0.9);
  --mobile-nav-bg: rgba(8, 11, 18, 0.98);
  --card-bg: rgba(17, 25, 37, 0.76);
  --panel-bg: #090e16;
  --inline-code-bg: #090e16;
  --plain-text: #d7dee8;
  --footer-bg: #070a10;
  --footer-text: #657184;
  --primary-bg: #f7f8fb;
  --primary-text: #080b12;
  --primary-hover: #dffbff;
  --accent-soft: rgba(103, 232, 249, 0.07);
  --accent-border: rgba(103, 232, 249, 0.28);
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  --modal-bg: #ffffff;
  --modal-text: #111827;
  --modal-muted: #64748b;
  --modal-control: #f1f5f9;
  --modal-control-text: #334155;
  --overlay: rgba(0, 0, 0, 0.76);
  --grid-line: rgba(255, 255, 255, 0.024);
  --max-width: 1180px;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f6f8fb;
  --bg-soft: #eef2f7;
  --surface: #ffffff;
  --surface-strong: #e8edf4;
  --surface-translucent: rgba(255, 255, 255, 0.9);
  --surface-subtle: rgba(15, 23, 42, 0.025);
  --line: rgba(30, 41, 59, 0.12);
  --line-strong: rgba(30, 41, 59, 0.2);
  --text: #101828;
  --muted: #475467;
  --faint: #667085;
  --violet: #6d50c7;
  --cyan: #087f9c;
  --green: #087f5b;
  --yellow: #9a5b00;
  --danger: #c43d56;
  --header-bg: rgba(246, 248, 251, 0.9);
  --mobile-nav-bg: rgba(255, 255, 255, 0.98);
  --card-bg: rgba(255, 255, 255, 0.9);
  --panel-bg: #f8fafc;
  --inline-code-bg: #e9f2f4;
  --plain-text: #344054;
  --footer-bg: #edf1f6;
  --footer-text: #667085;
  --primary-bg: #101828;
  --primary-text: #ffffff;
  --primary-hover: #24324a;
  --accent-soft: rgba(8, 127, 156, 0.07);
  --accent-border: rgba(8, 127, 156, 0.25);
  --shadow: 0 20px 54px rgba(15, 23, 42, 0.12);
  --modal-bg: #ffffff;
  --modal-text: #101828;
  --modal-muted: #475467;
  --modal-control: #eef2f6;
  --modal-control-text: #344054;
  --overlay: rgba(15, 23, 42, 0.54);
  --grid-line: rgba(15, 23, 42, 0.045);
  color-scheme: light;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

html, body { min-width: 320px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  -webkit-tap-highlight-color: rgba(103, 232, 249, 0.16);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0, transparent 72%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -3;
  content: "";
  background: var(--bg);
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }

a, button, summary { touch-action: manipulation; }

h1, h2, h3 { text-wrap: balance; }
p, li { text-wrap: pretty; }
[id] { scroll-margin-top: 88px; }

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: 6px;
  background: white;
  color: #080b12;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 72px;
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(18px);
}

.nav-shell {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 118px;
  justify-self: start;
}

.brand img {
  width: 90px;
  height: 26px;
  object-fit: contain;
  padding: 3px 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.96);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav a {
  position: relative;
  color: var(--muted);
  font-size: 14px;
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] { color: var(--text); }

.desktop-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -11px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 170px;
  gap: 8px;
  justify-self: end;
}

.theme-toggle {
  position: relative;
  display: inline-grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface-subtle);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.theme-toggle:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--text);
}

.theme-icon { grid-area: 1 / 1; font-size: 17px; line-height: 1; }
.theme-icon-sun { display: none; }
:root[data-theme="light"] .theme-icon-sun { display: block; }
:root[data-theme="light"] .theme-icon-moon { display: none; }

.mobile-menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
}

.mobile-menu-button span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--text);
  transition: transform 160ms ease, opacity 160ms ease;
}

.mobile-menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.mobile-menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: absolute;
  top: 71px;
  right: -20px;
  left: -20px;
  padding: 12px 20px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--mobile-nav-bg);
  box-shadow: var(--shadow);
}

.mobile-nav.is-open { display: grid; }

.mobile-nav a {
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.mobile-nav a:last-child { border-bottom: 0; }
.mobile-nav a[aria-current="page"] { color: var(--cyan); }

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-weight: 650;
  line-height: 1.2;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover { transform: translateY(-1px); }

.button-primary {
  background: var(--primary-bg);
  color: var(--primary-text);
}

.button-primary:hover { background: var(--primary-hover); }

.button-secondary {
  border-color: var(--line-strong);
  background: var(--surface-subtle);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}

.button-small {
  min-height: 38px;
  padding: 8px 14px;
  font-size: 14px;
}

.button-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.hero {
  position: relative;
  display: flex;
  min-height: min(790px, calc(100svh - 32px));
  align-items: center;
  padding: 124px 0 68px;
  overflow: hidden;
}

.hero::after {
  position: absolute;
  top: 120px;
  left: 50%;
  width: min(980px, 82vw);
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(103, 232, 249, 0.34), transparent);
  transform: translateX(-50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 22px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  content: "";
  background: var(--green);
  box-shadow: 0 0 14px rgba(110, 231, 183, 0.8);
}

.hero h1 {
  max-width: 720px;
  margin: 0 0 24px;
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 760;
  line-height: 1.2;
  letter-spacing: 0;
}

.cli-hero-title {
  font-size: clamp(38px, 4.4vw, 60px) !important;
  line-height: 1.34 !important;
}

.hero h1 .accent,
.section-heading .accent {
  color: var(--cyan);
}

.hero-copy {
  max-width: 660px;
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.proof-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  color: var(--faint);
  font-size: 13px;
}

.proof-list span::before {
  margin-right: 7px;
  color: var(--green);
  content: "✓";
}

.product-window {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(12, 18, 29, 0.94);
  box-shadow: var(--shadow);
  color: #f7f8fb;
  --text: #f7f8fb;
  --muted: #a9b4c3;
  --faint: #748094;
  --line: rgba(148, 163, 184, 0.16);
  --line-strong: rgba(148, 163, 184, 0.28);
  --cyan: #67e8f9;
  --green: #6ee7b7;
}

.window-bar {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  color: var(--faint);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.window-dots { display: flex; gap: 7px; }
.window-dots i { width: 8px; height: 8px; border-radius: 50%; background: #64748b; }
.window-dots i:nth-child(1) { background: #fb7185; }
.window-dots i:nth-child(2) { background: #facc15; }
.window-dots i:nth-child(3) { background: #4ade80; }

.workspace {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 420px;
}

.workspace-main { padding: 24px; }
.workspace-side { padding: 24px; border-left: 1px solid var(--line); background: rgba(255,255,255,0.018); }
.label { margin-bottom: 10px; color: var(--faint); font-size: 12px; }
.prompt-box, .result-box, .code-box {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #0a0f18;
}
.prompt-box { padding: 16px; color: #dce4ef; font-size: 14px; }
.task-list { display: grid; gap: 12px; margin-top: 24px; }
.task-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; font-size: 12px; color: var(--muted); }
.task-status { color: var(--green); }
.progress { grid-column: 1 / -1; height: 4px; overflow: hidden; border-radius: 2px; background: #1f2937; }
.progress span { display: block; width: var(--progress, 100%); height: 100%; background: linear-gradient(90deg, var(--violet), var(--cyan)); }
.progress .progress-72 { width: 72%; }
.result-box { padding: 16px; }
.result-title { margin-bottom: 16px; font-weight: 700; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.metric { padding: 12px 8px; border: 1px solid var(--line); border-radius: 6px; }
.metric strong { display: block; font-size: 20px; }
.metric span { color: var(--faint); font-size: 11px; }
.result-note { margin-top: 18px; color: var(--muted); font-size: 12px; }
.approval { margin-top: 18px; padding: 12px; border-left: 2px solid var(--yellow); background: rgba(250, 204, 21, 0.06); color: #d9d1a8; font-size: 12px; }

.section {
  position: relative;
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.section-soft { background: var(--surface-subtle); }

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(300px, 0.28fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 46px;
}

.section-heading {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.28;
  letter-spacing: 0;
}

.section-copy {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.card-number {
  display: block;
  margin-bottom: 28px;
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.card h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.4; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card code,
.faq code {
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--inline-code-bg);
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.88em;
  overflow-wrap: anywhere;
}
.card .card-link { display: inline-flex; margin-top: 20px; color: var(--cyan); font-size: 14px; }

.scenario-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
}

.scenario-tabs {
  display: flex;
  flex-direction: column;
  padding: 12px;
  border-right: 1px solid var(--line);
  gap: 6px;
}

.scenario-tab {
  padding: 14px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.scenario-tab:hover { background: var(--surface-subtle); color: var(--text); }
.scenario-tab[aria-selected="true"] { background: var(--accent-soft); color: var(--cyan); }
.scenario-tab strong { display: block; margin-bottom: 3px; color: inherit; font-size: 15px; }
.scenario-tab span { display: block; color: var(--faint); font-size: 12px; }

.scenario-panel { display: none; min-height: 380px; padding: 34px; }
.scenario-panel.is-active { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 34px; align-items: center; }
.scenario-panel h3 { margin: 0 0 12px; font-size: 26px; }
.scenario-panel p { margin: 0 0 20px; color: var(--muted); }
.plain-list { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; color: var(--plain-text); font-size: 14px; }
.plain-list li { padding-left: 18px; position: relative; }
.plain-list li::before { position: absolute; left: 0; color: var(--green); content: "✓"; }

.data-preview { padding: 20px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel-bg); }
.preview-line { display: grid; grid-template-columns: 1fr auto; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.preview-line:last-child { border-bottom: 0; }
.preview-line strong { color: var(--text); }
.status-positive { color: var(--green) !important; }
.status-warning { color: var(--yellow) !important; }
.status-danger { color: var(--danger) !important; }
.spacing-top-14 { margin-top: 14px; }
.spacing-top-16 { margin-top: 16px; }
.spacing-top-20 { margin-top: 20px; }
.spacing-top-24 { margin-top: 24px; }

.control-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(460px, 1.2fr);
  gap: 64px;
  align-items: center;
}

.control-matrix { overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.matrix-head, .matrix-row { display: grid; grid-template-columns: 1.3fr repeat(3, 0.7fr); align-items: center; }
.matrix-head { background: var(--surface-subtle); color: var(--faint); font-size: 12px; }
.matrix-head span, .matrix-row span { padding: 12px 14px; }
.matrix-row { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.matrix-row span:not(:first-child) { text-align: center; }
.allowed { color: var(--green); }
.limited { color: var(--yellow); }
.blocked { color: var(--danger); }

.feature-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  align-items: center;
  padding: 42px;
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  background: var(--accent-soft);
}
.feature-band h2 { margin: 0 0 12px; font-size: clamp(28px, 3vw, 40px); }
.feature-band p { max-width: 720px; margin: 0; color: var(--muted); }
.feature-band-spaced { margin-top: 18px; }
.feature-band .feature-band-compact-title { font-size: 26px; }

.steps { counter-reset: steps; }
.step { min-height: 210px; }
.step::before {
  display: block;
  margin-bottom: 30px;
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  counter-increment: steps;
  content: "0" counter(steps);
}

.code-box {
  overflow: hidden;
  padding: 22px;
  color: #c8d2df;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.85;
  white-space: pre-wrap;
}
.cli-window-body { padding: 24px; }
.code-comment { color: #68778a; }
.code-key { color: var(--cyan); }
.code-value { color: var(--green); }
.demo-badge { padding: 4px 7px; border: 1px solid var(--line); border-radius: 5px; color: var(--faint); font-size: 10px; }

.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.flow .card { min-height: 190px; }

.faq { display: grid; gap: 10px; max-width: 900px; }
.faq details { border: 1px solid var(--line); border-radius: 7px; background: var(--card-bg); }
.faq summary { padding: 18px 52px 18px 20px; font-weight: 650; cursor: pointer; }
.faq summary:hover { color: var(--cyan); }
.faq details p { margin: 0; padding: 0 20px 20px; color: var(--muted); }

.cta-section { padding: 92px 0; border-top: 1px solid var(--line); background: var(--accent-soft); }
.cta-box { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.cta-box h2 { max-width: 760px; margin: 0 0 14px; font-size: clamp(32px, 4vw, 50px); line-height: 1.25; }
.cta-box p { max-width: 700px; margin: 0; color: var(--muted); }

.site-footer { padding: 56px 0 calc(30px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: var(--footer-bg); }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 48px; }
.footer-brand p { max-width: 360px; margin: 18px 0 0; color: var(--faint); font-size: 13px; }
.footer-column h2 { margin: 0 0 14px; font-size: 14px; }
.footer-column a { display: block; width: fit-content; margin: 9px 0; color: var(--faint); font-size: 13px; }
.footer-column a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--footer-text); font-size: 12px; }

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 20px; overscroll-behavior: contain; }
.modal-backdrop { position: absolute; inset: 0; border: 0; background: var(--overlay); backdrop-filter: blur(5px); }
.modal-panel { position: relative; width: min(100%, 420px); padding: 30px; border: 1px solid var(--line); border-radius: 8px; background: var(--modal-bg); color: var(--modal-text); box-shadow: var(--shadow); text-align: center; }
.modal-panel h2 { margin: 0 36px 8px; font-size: 23px; }
.modal-panel p { margin: 0 0 20px; color: var(--modal-muted); font-size: 14px; }
.modal-panel img { width: 220px; height: 220px; margin: 0 auto 18px; }
.modal-close { position: absolute; top: 12px; right: 12px; width: 38px; height: 38px; border: 0; border-radius: 6px; background: var(--modal-control); color: var(--modal-control-text); font-size: 24px; cursor: pointer; }
.contact-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 18px; color: var(--modal-muted); font-size: 13px; }

.reveal { opacity: 1; transform: none; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .desktop-nav, .nav-actions > .button { display: none; }
  .mobile-menu-button { display: block; }
  .nav-actions { min-width: 0; }
  .hero { min-height: auto; padding: 120px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; }
  .section-intro { grid-template-columns: 1fr; gap: 16px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .control-layout { grid-template-columns: 1fr; gap: 38px; }
  .scenario-shell { grid-template-columns: 1fr; }
  .scenario-tabs { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .scenario-tab { min-width: 190px; }
  .feature-band, .cta-box { grid-template-columns: 1fr; gap: 28px; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 32px), var(--max-width)); }
  .site-header { height: 68px; }
  .brand img { width: 86px; height: 25px; }
  .mobile-nav { top: 67px; right: -16px; left: -16px; padding-inline: 16px; }
  .hero { padding: 112px 0 58px; }
  .hero h1 { font-size: 39px; line-height: 1.28; }
  .hero-copy { font-size: 16px; }
  .hero-actions, .cta-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .button, .cta-actions .button { width: 100%; }
  .proof-list { display: grid; gap: 8px; }
  .workspace { grid-template-columns: 1fr; min-height: auto; }
  .workspace-main, .workspace-side { padding: 18px; }
  .workspace-side { border-top: 1px solid var(--line); border-left: 0; }
  .metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .metric strong { font-size: 17px; }
  .section { padding: 72px 0; }
  .section-heading { font-size: 31px; }
  .section-intro { margin-bottom: 32px; }
  .card { padding: 22px; }
  .grid-4, .flow { grid-template-columns: 1fr; }
  .scenario-panel { min-height: 0; padding: 24px 20px; }
  .scenario-panel.is-active { grid-template-columns: 1fr; gap: 26px; }
  .scenario-tab { min-width: 160px; }
  .control-matrix { overflow-x: auto; }
  .matrix-head, .matrix-row { min-width: 530px; }
  .feature-band { padding: 28px 22px; }
  .cta-section { padding: 72px 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .modal-panel { padding: 26px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}