:root {
  --blue: #009af6;
  --blue-dark: #007fd1;
  --ink: #1a2332;
  --muted: #5b6777;
  --line: #e4e9ef;
  --bg: #f7f9fa;
  --card: #ffffff;
  --yellow: #ffc83e;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { min-height: 100%; }
body {
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.nav {
  position: sticky; top: 0; z-index: 40;
  height: 72px; display: flex; align-items: center; gap: 20px;
  padding: 0 28px; background: rgba(247,249,250,.92);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(10px);
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: Poppins, Inter, sans-serif; font-weight: 700; font-size: 22px;
  letter-spacing: -0.03em; color: var(--ink);
}
.brand img { border-radius: 6px; }
.brand .dot { color: var(--blue); }
.nav-links { display: flex; gap: 22px; margin-left: 18px; font-weight: 500; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.lang-pick { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: #fff; }
.lang-btn { border: 0; background: transparent; padding: 6px 12px; cursor: pointer; color: var(--muted); font-size: 13px; }
.lang-btn.active { background: var(--blue); color: #fff; }
.link-login { color: var(--muted); font-weight: 500; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border: 0; border-radius: 12px; cursor: pointer; font-weight: 600;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { background: var(--blue); color: #fff; padding: 9px 16px; font-size: 14px; }
.btn-sm:hover { background: var(--blue-dark); }
.btn-upload {
  background: var(--blue); color: #fff; padding: 16px 28px; font-size: 18px;
  box-shadow: 0 10px 28px rgba(0,154,246,.28);
}
.btn-upload:hover { background: var(--blue-dark); }
.btn-outline {
  background: #fff; color: var(--blue); border: 1.5px solid var(--blue);
  padding: 12px 20px; margin-top: 8px;
}
.btn-outline:hover { background: #eef8ff; }

.hero {
  min-height: calc(100vh - 72px);
  display: flex; align-items: center; justify-content: center;
  padding: 40px 24px 56px;
  background:
    radial-gradient(900px 420px at 20% 10%, rgba(0,154,246,.10), transparent 60%),
    radial-gradient(700px 380px at 85% 20%, rgba(255,200,62,.14), transparent 55%),
    var(--bg);
}
.hero-inner {
  width: min(1120px, 100%);
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center;
}
.hero-img {
  width: 100%; border-radius: 20px; aspect-ratio: 3/2; object-fit: cover;
  box-shadow: 0 24px 60px rgba(26,35,50,.18);
}
.hero-copy h1 {
  font-family: Poppins, Inter, sans-serif;
  font-size: clamp(34px, 4.5vw, 52px); line-height: 1.12;
  letter-spacing: -0.03em; margin-bottom: 14px;
}
.hero-sub { font-size: 22px; margin-bottom: 28px; color: var(--ink); }
.badge {
  display: inline-block; background: var(--blue); color: #fff;
  border-radius: 8px; padding: 2px 10px; font-weight: 700; margin-left: 4px;
}
.hero-hint { margin-top: 14px; color: var(--muted); }
.hero-terms { margin-top: 18px; font-size: 13px; color: #8a95a5; max-width: 420px; }

.container { width: min(1100px, calc(100% - 40px)); margin: 0 auto; }
.block { padding: 72px 0; }
.block-alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.title {
  font-family: Poppins, Inter, sans-serif;
  font-size: clamp(26px, 3vw, 36px); letter-spacing: -0.02em; margin-bottom: 12px;
}
.lede { color: var(--muted); font-size: 18px; max-width: 640px; margin-bottom: 28px; }

.use-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.use-card {
  text-align: left; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; cursor: pointer;
  transition: box-shadow .2s ease, transform .2s ease;
}
.use-card:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(26,35,50,.08); }
.use-ico {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 14px;
  background: linear-gradient(135deg, #dff2ff, #bfe4ff);
}
.use-ico.products { background: linear-gradient(135deg, #fff3d6, #ffe4a3); }
.use-ico.animals { background: linear-gradient(135deg, #e4ffe8, #bff0c8); }
.use-ico.cars { background: linear-gradient(135deg, #efe8ff, #d7c9ff); }
.use-card strong { display: block; font-size: 17px; margin-bottom: 6px; }
.use-card span { color: var(--muted); font-size: 14px; }

.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split-img { border-radius: 18px; box-shadow: 0 18px 48px rgba(26,35,50,.1); }

.cta {
  padding: 80px 0; background: linear-gradient(180deg, #eaf6ff 0%, #f7f9fa 100%);
  text-align: center;
}
.cta h2 {
  font-family: Poppins, Inter, sans-serif;
  font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 10px;
}
.cta p { color: var(--muted); margin-bottom: 24px; font-size: 18px; }

.footer { background: #fff; border-top: 1px solid var(--line); padding: 48px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; }
.foot-brand { margin-bottom: 10px; font-size: 18px; }
.foot-note { color: var(--muted); font-size: 14px; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: #8a95a5; margin-bottom: 12px; }
.footer a { display: block; color: var(--muted); margin: 8px 0; }
.footer a:hover { color: var(--blue); }
.foot-copy { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); color: #97a1af; font-size: 13px; }

.wa-modal {
  position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center; padding: 20px;
}
.wa-modal:not([hidden]) { display: flex; }
.wa-backdrop { position: absolute; inset: 0; background: rgba(15,23,42,.55); }
.wa-panel {
  position: relative; z-index: 1; width: min(400px, 100%);
  background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: 0 28px 80px rgba(15,23,42,.28);
}
.wa-close {
  position: absolute; top: 8px; right: 10px; z-index: 2;
  width: 32px; height: 32px; border: 0; border-radius: 999px;
  background: #f1f5f9; cursor: pointer; font-size: 20px; line-height: 1; color: #334155;
}
#wa-frame { width: 100%; height: min(480px, 88vh); border: 0; display: block; background: #fff; }

@media (max-width: 960px) {
  .hero-inner, .split, .use-grid, .footer-grid { grid-template-columns: 1fr; }
  .split.reverse { direction: ltr; }
  .hide-sm { display: none !important; }
  .nav { padding: 0 16px; }
  .hero { padding-top: 28px; }
}