:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --blue: #1469e8;
  --blue-2: #0a4cc4;
  --green: #12b76a;
  --navy: #071a38;
  --shadow: 0 22px 70px rgba(15, 23, 42, .10);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #fff 0%, var(--bg) 52%, #fff 100%);
}
a { color: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(255,255,255,.86);
  border-bottom: 1px solid rgba(226,232,240,.85);
}
.nav-inner { height: 74px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand { display:flex; align-items:center; gap:12px; text-decoration:none; font-weight:800; letter-spacing:-.02em; }
.brand img { width:46px; height:46px; object-fit:contain; }
.brand span { font-size:20px; }
.nav-links { display:flex; align-items:center; gap:26px; color:#475569; font-size:14px; font-weight:650; }
.nav-links a { text-decoration:none; }
.nav-links a:hover { color:var(--blue); }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  min-height:48px; padding:0 20px; border-radius:12px; text-decoration:none;
  font-weight:760; border:1px solid transparent; transition:.18s ease; cursor:pointer;
}
.btn-primary { background:linear-gradient(180deg, #1e7bf2, #0f5fd9); color:#fff; box-shadow:0 10px 28px rgba(20,105,232,.25); }
.btn-primary:hover { transform:translateY(-1px); box-shadow:0 14px 32px rgba(20,105,232,.31); }
.btn-secondary { background:#fff; border-color:var(--line); color:#1e293b; }
.btn-secondary:hover { border-color:#cbd5e1; background:#f8fafc; }
.btn-disabled { opacity:.6; cursor:not-allowed; }
.hero { padding:86px 0 66px; overflow:hidden; }
.hero-grid { display:grid; grid-template-columns:1.05fr .95fr; align-items:center; gap:56px; }
.eyebrow { display:inline-flex; gap:8px; align-items:center; padding:8px 12px; border:1px solid #dbeafe; background:#eff6ff; color:#1557b0; border-radius:999px; font-size:13px; font-weight:760; }
.dot { width:8px; height:8px; border-radius:50%; background:var(--green); box-shadow:0 0 0 5px rgba(18,183,106,.12); }
h1 { font-size:clamp(46px, 6vw, 76px); line-height:.98; letter-spacing:-.055em; margin:22px 0 22px; }
.hero p { font-size:20px; line-height:1.65; color:#526173; max-width:680px; margin:0 0 30px; }
.hero-actions { display:flex; gap:12px; flex-wrap:wrap; }
.hero-note { margin-top:18px; color:#758295; font-size:13px; }
.hero-card { position:relative; }
.glow { position:absolute; width:460px; height:460px; border-radius:50%; background:radial-gradient(circle, rgba(49,130,246,.24), rgba(49,130,246,0) 68%); top:-100px; right:-80px; pointer-events:none; }
.app-window { position:relative; background:#fff; border:1px solid #dfe6ef; border-radius:20px; box-shadow:var(--shadow); overflow:hidden; transform:rotate(1deg); }
.titlebar { height:42px; display:flex; align-items:center; gap:7px; padding:0 16px; border-bottom:1px solid #edf1f6; }
.mac-dot { width:11px; height:11px; border-radius:50%; background:#d4d9e1; }
.mock-body { display:grid; grid-template-columns:150px 1fr; min-height:390px; }
.sidebar { background:#f8fafc; border-right:1px solid #edf1f6; padding:18px 14px; }
.side-logo { width:82px; margin:0 auto 22px; display:block; }
.side-item { padding:10px 11px; margin:4px 0; border-radius:8px; font-size:12px; color:#465569; }
.side-item.active { background:#e9f2ff; color:#0d5ecf; font-weight:750; }
.content { padding:26px; }
.mock-top { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.mock-title { font-size:17px; font-weight:800; }
.badge { font-size:10px; border-radius:999px; padding:5px 8px; background:#ecfdf3; color:#067647; font-weight:800; }
.file-row { display:grid; grid-template-columns:22px 1fr 72px; gap:8px; align-items:center; padding:11px 0; border-bottom:1px solid #eff2f5; font-size:11px; }
.file-icon { width:17px; height:17px; border-radius:4px; background:#dbeafe; }
.file-size { color:#8290a2; text-align:right; }
.progress-card { margin-top:22px; padding:16px; background:#f8fafc; border:1px solid #edf1f6; border-radius:12px; }
.progress-top { display:flex; justify-content:space-between; font-size:11px; font-weight:750; }
.track { margin-top:10px; height:9px; background:#e6ebf1; border-radius:999px; overflow:hidden; }
.fill { width:68%; height:100%; background:linear-gradient(90deg, #1991ff, #0c5bdd); border-radius:999px; }
.progress-foot { margin-top:9px; font-size:10px; color:#738196; display:flex; justify-content:space-between; }
.trust-row { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:36px; }
.trust-chip { padding:15px 16px; background:#fff; border:1px solid var(--line); border-radius:14px; font-size:13px; color:#526173; text-align:center; }
section { padding:82px 0; }
.section-head { max-width:720px; margin:0 auto 46px; text-align:center; }
.kicker { color:var(--blue); font-size:13px; font-weight:850; letter-spacing:.08em; text-transform:uppercase; }
h2 { margin:10px 0 14px; font-size:clamp(34px,4vw,50px); letter-spacing:-.04em; }
.section-head p { margin:0; color:var(--muted); font-size:17px; line-height:1.65; }
.features { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.feature { padding:28px; background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:0 8px 30px rgba(15,23,42,.04); }
.feature-icon { width:44px; height:44px; display:grid; place-items:center; border-radius:12px; background:#edf5ff; font-size:22px; }
.feature h3 { margin:18px 0 8px; font-size:18px; }
.feature p { margin:0; color:var(--muted); line-height:1.6; font-size:14px; }
.steps { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.step { position:relative; padding:30px; border:1px solid var(--line); border-radius:18px; background:#fff; }
.step-no { display:inline-grid; place-items:center; width:34px; height:34px; border-radius:50%; background:#0f172a; color:#fff; font-weight:800; font-size:13px; }
.step h3 { margin:18px 0 8px; }
.step p { margin:0; color:var(--muted); line-height:1.6; font-size:14px; }
.security { background:var(--navy); color:#fff; }
.security-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.security p { color:#c7d2e2; font-size:16px; line-height:1.7; }
.security-list { display:grid; gap:12px; }
.security-item { display:flex; gap:12px; padding:15px 16px; border:1px solid rgba(255,255,255,.10); background:rgba(255,255,255,.04); border-radius:13px; color:#dbe6f4; font-size:14px; }
.check { color:#5ee6a8; font-weight:900; }
.demo-box { display:grid; grid-template-columns:1fr 1fr; gap:28px; align-items:center; padding:36px; border:1px solid var(--line); border-radius:24px; background:#fff; box-shadow:var(--shadow); }
.demo-screen { aspect-ratio:16/9; display:grid; place-items:center; border-radius:18px; background:linear-gradient(135deg,#eaf3ff,#f8fbff); border:1px solid #d9e7fa; text-align:center; padding:20px; }
.play { width:70px; height:70px; display:grid; place-items:center; border-radius:50%; background:var(--blue); color:#fff; font-size:25px; box-shadow:0 12px 35px rgba(20,105,232,.3); margin:0 auto 12px; }
.demo-copy p { color:var(--muted); line-height:1.7; }
.pricing-wrap { max-width:760px; margin:0 auto; }
.price-card { position:relative; padding:38px; background:#fff; border:1px solid #cfe0f6; border-radius:24px; box-shadow:var(--shadow); }
.price-badge { position:absolute; top:20px; right:20px; padding:7px 10px; border-radius:999px; background:#ecfdf3; color:#067647; font-size:12px; font-weight:800; }
.price { font-size:58px; font-weight:900; letter-spacing:-.05em; margin:15px 0 4px; }
.price small { font-size:16px; color:var(--muted); font-weight:650; letter-spacing:0; }
.price-list { display:grid; gap:12px; margin:26px 0; }
.price-item { display:flex; gap:10px; color:#475569; font-size:14px; }
.faq { max-width:850px; margin:0 auto; }
details { background:#fff; border:1px solid var(--line); border-radius:14px; padding:0 20px; margin:12px 0; }
summary { cursor:pointer; list-style:none; padding:19px 0; font-weight:750; }
summary::-webkit-details-marker { display:none; }
details p { margin:0 0 20px; color:var(--muted); line-height:1.65; font-size:14px; }
.cta { padding:50px; background:linear-gradient(135deg,#0e5ed7,#113d93); border-radius:28px; color:#fff; display:flex; align-items:center; justify-content:space-between; gap:30px; box-shadow:0 24px 60px rgba(13,74,166,.25); }
.cta h2 { margin:0 0 8px; font-size:38px; }
.cta p { margin:0; color:#dce9ff; }
.footer { padding:46px 0 30px; border-top:1px solid var(--line); background:#fff; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:30px; }
.footer p { color:var(--muted); font-size:13px; line-height:1.6; max-width:450px; }
.footer h4 { margin:0 0 12px; }
.footer a { display:block; text-decoration:none; color:#526173; font-size:13px; margin:8px 0; }
.footer a:hover { color:var(--blue); }
.footer-bottom { margin-top:34px; padding-top:20px; border-top:1px solid var(--line); color:#94a3b8; font-size:12px; display:flex; justify-content:space-between; gap:20px; }
.notice { margin-top:16px; padding:12px 14px; border-radius:10px; background:#fff7ed; border:1px solid #fed7aa; color:#9a4b08; font-size:12px; line-height:1.5; }
@media (max-width: 900px) {
  .nav-links { display:none; }
  .hero-grid, .security-grid, .demo-box { grid-template-columns:1fr; }
  .hero { padding-top:54px; }
  .hero-card { max-width:700px; margin:0 auto; width:100%; }
  .features, .steps { grid-template-columns:1fr 1fr; }
  .trust-row { grid-template-columns:1fr 1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width: 640px) {
  .container { width:min(100% - 24px, 1160px); }
  .brand span { display:none; }
  .nav-inner { height:66px; }
  .nav .btn { min-height:42px; padding:0 14px; font-size:13px; }
  h1 { font-size:45px; }
  .hero p { font-size:17px; }
  .features, .steps, .trust-row, .footer-grid { grid-template-columns:1fr; }
  .mock-body { grid-template-columns:108px 1fr; }
  .sidebar { padding:14px 8px; }
  .content { padding:18px 14px; }
  .price-card, .demo-box { padding:24px; }
  .price { font-size:48px; }
  .cta { padding:30px 24px; flex-direction:column; align-items:flex-start; }
  .footer-bottom { flex-direction:column; }
}