:root {
  --blue: #0057d9;
  --blue-dark: #003fb8;
  --red: #f00000;
  --text: #1a1a1a;
  --muted: #5f6b7a;
  --soft: #eaf3ff;
  --soft-2: #cfe3ff;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(0, 63, 184, 0.14);
  --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.narrow { max-width: 780px; text-align: center; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 87, 217, 0.08);
}
.header-inner, .footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 78px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 900; color: var(--blue); letter-spacing: 0.03em; }
.brand-logo { width: 48px; height: 48px; object-fit: contain; }
.brand-name { font-size: 22px; }
.main-nav { display: flex; align-items: center; gap: 22px; color: #314158; font-weight: 650; font-size: 15px; }
.main-nav a { transition: color 0.2s ease; }
.main-nav a:hover { color: var(--blue); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: var(--soft); border-radius: 14px; padding: 10px; }
.nav-toggle span { display: block; height: 3px; background: var(--blue); margin: 5px 0; border-radius: 10px; }
.section { padding: 92px 0; }
.section-glow {
  position: relative; overflow: hidden;
  background: radial-gradient(circle at 82% 18%, rgba(0, 87, 217, 0.18), transparent 30%), radial-gradient(circle at 18% 72%, rgba(240, 0, 0, 0.08), transparent 32%), linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}
.hero { padding: 92px 0 104px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 54px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--blue); font-weight: 850; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; }
.eyebrow.white { color: #ffffff; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 700px; margin-bottom: 22px; font-size: clamp(40px, 5.6vw, 74px); line-height: 0.98; letter-spacing: -0.05em; }
h2 { margin-bottom: 18px; font-size: clamp(30px, 3.4vw, 48px); line-height: 1.08; letter-spacing: -0.035em; }
h3 { margin-bottom: 10px; font-size: 22px; line-height: 1.18; }
.lead { max-width: 620px; margin-bottom: 30px; color: #35445c; font-size: clamp(19px, 2vw, 24px); }
.section-text { color: var(--muted); font-size: 18px; }
.white-soft { color: rgba(255, 255, 255, 0.78); }
.hero-actions, .contact-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 24px; border-radius: 999px; font-weight: 850; transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #ffffff; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); box-shadow: 0 14px 34px rgba(0, 87, 217, 0.25); }
.btn-primary:hover { box-shadow: 0 18px 40px rgba(0, 87, 217, 0.34); }
.btn-secondary { color: var(--blue-dark); background: #ffffff; border: 2px solid rgba(0, 87, 217, 0.16); box-shadow: 0 10px 28px rgba(0, 63, 184, 0.08); }
.hero-note { display: flex; align-items: center; gap: 10px; margin-top: 26px; color: #2b3e5a; font-weight: 700; }
.dot { width: 14px; height: 14px; border-radius: 50%; display: inline-block; }
.dot.red { background: var(--red); }
.hero-photo-card {
  position: relative; padding: 18px; border-radius: 40px; background: linear-gradient(180deg, #ffffff 0%, #edf6ff 100%); box-shadow: var(--shadow); border: 1px solid rgba(0, 87, 217, 0.12);
}
.hero-photo-card img { width: 100%; border-radius: 30px; object-fit: cover; image-rendering: auto; }
.cards { display: grid; gap: 22px; margin-top: 42px; }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.card, .small-card, .video-card, .contact-card, .product-card, .use-card, .use-copy {
  border: 1px solid rgba(0, 87, 217, 0.10); background: #ffffff; border-radius: var(--radius); box-shadow: 0 18px 50px rgba(0, 63, 184, 0.09);
}
.card { padding: 30px; }
.card p, .small-card p, .video-card p, .product-content p { color: var(--muted); margin-bottom: 0; }
.icon-circle { width: 66px; height: 66px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 22px; color: #ffffff; background: var(--blue); font-weight: 950; font-size: 28px; }
.icon-circle.light { color: var(--blue); background: var(--soft); }
.icon-circle.red { background: var(--red); }
.section-blue { color: #ffffff; background: radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.18), transparent 22%), radial-gradient(circle at 85% 72%, rgba(240, 0, 0, 0.22), transparent 26%), linear-gradient(135deg, var(--blue), var(--blue-dark)); }
.section-soft { background: var(--soft); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 42px; }
.step { position: relative; min-height: 142px; padding: 22px; border-radius: 26px; background: rgba(255, 255, 255, 0.13); border: 1px solid rgba(255, 255, 255, 0.20); backdrop-filter: blur(12px); }
.step span { display: inline-grid; place-items: center; width: 38px; height: 38px; margin-bottom: 18px; border-radius: 50%; color: var(--blue); background: #ffffff; font-weight: 950; }
.step strong { display: block; font-size: 22px; }
.small-card { padding: 26px; min-height: 190px; }
.video-card { display: grid; place-items: center; text-align: center; max-width: 1080px; min-height: 420px; margin: 42px auto 0; padding: 18px; background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(234, 243, 255, 0.95)), radial-gradient(circle at 50% 30%, rgba(0, 87, 217, 0.16), transparent 42%); }
.video-card video { width: 100%; max-height: 640px; border-radius: 24px; box-shadow: var(--shadow); background: #000; }
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 42px; }
.product-card { overflow: hidden; }
.product-image-wrap { padding: 24px 24px 0; }
.product-image { width: 100%; aspect-ratio: 4/3; object-fit: contain; border-radius: 24px; background: linear-gradient(180deg, #fff, #f3f8ff); }
.product-content { padding: 24px 24px 28px; }
.use-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; align-items: stretch; }
.use-card { padding: 18px; }
.use-image { width: 100%; height: 100%; object-fit: cover; border-radius: 26px; }
.use-copy { padding: 34px; background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%); }
.interaction-list { display: grid; gap: 14px; margin-top: 28px; }
.interaction-list div { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-radius: 20px; background: #ffffff; border: 1px solid rgba(0,87,217,0.10); box-shadow: 0 10px 28px rgba(0,63,184,0.07); color: #273852; font-weight: 760; }
.interaction-list span { display: inline-grid; place-items: center; flex: 0 0 30px; width: 30px; height: 30px; border-radius: 50%; color: #ffffff; background: var(--blue); font-weight: 950; }
.contact-card { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; padding: 42px; background: radial-gradient(circle at 100% 0%, rgba(0, 87, 217, 0.12), transparent 30%), #ffffff; }
.contact-muted { width: 100%; margin: 6px 0 0; color: var(--muted); font-size: 16px; }
.contact-muted a { color: var(--blue-dark); text-decoration: underline; }
.contact-status { width: 100%; min-height: 22px; margin: 0; color: var(--blue-dark); font-weight: 800; font-size: 15px; }
button.btn { border: 0; cursor: pointer; font-family: inherit; font-size: 16px; }
.site-footer { padding: 24px 0; color: #5f6b7a; background: #f7fbff; border-top: 1px solid rgba(0, 87, 217, 0.08); }
.footer-brand .brand-logo { width: 40px; height: 40px; }
.footer-inner p { margin: 0; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.09s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.23s; }
@media (max-width: 980px) {
  .hero-grid, .contact-card, .use-grid, .product-grid { grid-template-columns: 1fr; }
  .cards.three, .cards.four { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .contact-actions { justify-content: flex-start; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 28px, 1160px); }
  .header-inner { min-height: 68px; }
  .brand-logo { width: 42px; height: 42px; }
  .brand-name { font-size: 19px; }
  .nav-toggle { display: block; }
  .main-nav { position: absolute; left: 14px; right: 14px; top: 76px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border-radius: 22px; background: #ffffff; box-shadow: var(--shadow); border: 1px solid rgba(0, 87, 217, 0.10); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 13px 14px; border-radius: 14px; }
  .main-nav a:hover { background: var(--soft); }
  .section, .hero { padding: 68px 0; }
  .hero-photo-card, .use-card, .use-copy { border-radius: 30px; }
  .hero-photo-card img, .use-image { border-radius: 22px; }
  .cards.three, .cards.four, .steps { grid-template-columns: 1fr; }
  .card, .small-card, .contact-card, .video-card, .product-card, .use-card, .use-copy { border-radius: 24px; }
  .video-card { min-height: 340px; padding: 14px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}