:root {
  --ink: #17202b;
  --muted: #657080;
  --line: rgba(20, 28, 38, 0.12);
  --blue: #0a84ff;
  --green: #2ec4b6;
  --bg: #f5f7fa;
  --panel: rgba(255, 255, 255, 0.82);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, "PingFang SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(10,132,255,.10), transparent 36%),
    linear-gradient(35deg, rgba(46,196,182,.10), transparent 45%),
    var(--bg);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 66px;
  padding: 0 clamp(18px, 5vw, 70px);
  background: rgba(248, 250, 252, .72);
  backdrop-filter: blur(24px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
.brand, nav { display: flex; align-items: center; gap: 14px; }
.brand { color: inherit; text-decoration: none; }
.brand span {
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 8px; background: linear-gradient(135deg, var(--blue), var(--green)); color: white; font-weight: 800;
}
nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
nav a:hover { color: var(--blue); }
.hero {
  min-height: calc(100vh - 66px);
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(460px, 1.1fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: center;
  padding: clamp(44px, 7vw, 86px) clamp(18px, 5vw, 70px);
}
.eyebrow { margin: 0 0 12px; color: #0767c6; font-size: 13px; font-weight: 760; letter-spacing: .04em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 18px; font-size: clamp(56px, 9vw, 112px); line-height: .9; letter-spacing: 0; }
h2 { font-size: clamp(30px, 5vw, 52px); line-height: 1.05; letter-spacing: 0; }
h3 { font-size: 18px; }
.lead { max-width: 640px; color: #344054; font-size: clamp(18px, 2.2vw, 24px); line-height: 1.55; }
.hero-actions { display: flex; gap: 12px; margin: 28px 0; flex-wrap: wrap; }
.primary, .secondary {
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  padding: 0 18px; border-radius: 8px; text-decoration: none; font-weight: 720;
}
.primary { background: var(--blue); color: white; box-shadow: 0 12px 28px rgba(10,132,255,.24); }
.secondary { background: white; color: var(--ink); border: 1px solid var(--line); }
.trial-form {
  display: grid;
  gap: 10px;
  max-width: 520px;
  padding: 14px;
  margin: 0 0 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.78);
}
.trial-form label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 650; }
.trial-form input, .trial-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--ink);
  background: white;
  outline: none;
  font: inherit;
}
.trial-form textarea { min-height: 82px; resize: vertical; line-height: 1.5; }
.trial-form button {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  color: white;
  background: var(--blue);
  font-weight: 760;
  cursor: pointer;
}
.form-status { margin: 0; color: var(--muted); font-size: 13px; }
.stats { display: flex; gap: 12px; flex-wrap: wrap; margin: 0; }
.stats div { min-width: 112px; padding: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.stats dt { font-size: 26px; font-weight: 820; color: var(--blue); }
.stats dd { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.app-shot {
  min-height: 520px; overflow: hidden; border-radius: 16px; border: 1px solid rgba(255,255,255,.9);
  background: rgba(255,255,255,.74); box-shadow: 0 28px 70px rgba(17, 24, 39, .18);
}
.window-bar { height: 46px; display: flex; align-items: center; gap: 8px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.window-bar i { width: 12px; height: 12px; border-radius: 50%; background: #ff5f57; }
.window-bar i:nth-child(2) { background: #febc2e; }
.window-bar i:nth-child(3) { background: #28c840; }
.window-bar span { margin-left: 8px; color: var(--muted); font-size: 13px; }
.app-grid { height: 474px; display: grid; grid-template-columns: 150px 1fr; grid-template-rows: 1fr 150px; }
.app-grid aside { grid-row: 1 / -1; padding: 14px; background: rgba(232,235,240,.82); border-right: 1px solid var(--line); }
.app-grid aside b { display: block; padding: 9px 10px; margin-bottom: 6px; border-radius: 7px; color: #344054; font-size: 13px; }
.app-grid aside b:first-child { background: var(--blue); color: white; }
.preview { padding: 18px; }
.monitor { height: 250px; display: grid; place-items: center; border-radius: 10px; color: white; font-weight: 800; background: linear-gradient(135deg, #0a84ff, #2ec4b6); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.cards span { height: 74px; border-radius: 8px; background: #eef3f8; border: 1px solid var(--line); }
.timeline { grid-column: 2; padding: 14px 18px; background: #252a32; }
.timeline span { display: block; height: 24px; margin: 7px 0; border-radius: 5px; background: linear-gradient(90deg, #0a84ff 60%, transparent 60%); }
.timeline span:nth-child(2) { background: linear-gradient(90deg, #7d5fff 48%, transparent 48%); }
.timeline span:nth-child(3) { background: linear-gradient(90deg, #2ec4b6 70%, transparent 70%); }
.timeline span:nth-child(4) { background: linear-gradient(90deg, #34c759 92%, transparent 92%); }
.section { padding: clamp(54px, 8vw, 100px) clamp(18px, 5vw, 70px); }
.section-head { max-width: 900px; margin-bottom: 26px; }
.feature-grid, .model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature-grid article, .model-grid article, .panel {
  padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); box-shadow: 0 12px 30px rgba(17,24,39,.06);
}
.feature-grid p { color: var(--muted); line-height: 1.65; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { display: grid; gap: 4px; padding: 16px; border-left: 3px solid var(--blue); background: rgba(255,255,255,.72); border-radius: 8px; }
.steps span, .model-grid span, .cta p { color: var(--muted); line-height: 1.6; }
.track { height: 46px; margin: 12px 0; padding: 13px 14px; border-radius: 8px; color: white; font-weight: 700; }
.t3 { background: #667085; } .t2 { background: #7d5fff; } .t1 { background: var(--blue); } .a1 { background: #34c759; }
.cta { text-align: center; }
.cta p { max-width: 760px; margin: 0 auto; }
footer { padding: 28px; text-align: center; color: var(--muted); border-top: 1px solid var(--line); }
@media (max-width: 900px) {
  .site-header nav { display: none; }
  .hero, .split { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .app-shot { min-height: 440px; }
  .app-grid { grid-template-columns: 96px 1fr; }
  .feature-grid, .model-grid { grid-template-columns: 1fr; }
  h1 { font-size: 64px; }
}
@media (max-width: 430px) {
  .site-header { height: 58px; }
  .hero { padding-top: 34px; }
  h1 { font-size: 52px; }
  .lead { font-size: 17px; }
  .app-grid { grid-template-columns: 1fr; }
  .app-grid aside { display: none; }
  .preview, .timeline { grid-column: 1; }
}