:root {
  --bg: #0b0f13;
  --panel: #0f141a;
  --text: #e7edf3;
  --muted: #9fb0c0;
  --brand: #98e7ff; /* brighter, more airy */
  --accent: #7a5cff;
  --shadow: rgba(0,0,0,0.35);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 600px at 80% -20%, #1a2230 0%, #0b0f13 50%), var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container { width: min(1100px, 92vw); margin: 0 auto; }
.header { position: sticky; top: 0; background: rgba(11,15,19,0.55); backdrop-filter: saturate(180%) blur(12px); z-index: 10; }
.header-inner { display: flex; align-items: center; gap: 20px; padding: 12px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; letter-spacing: 0.5px; }
.brand-logo { width: 28px; height: 28px; object-fit: contain; filter: drop-shadow(0 6px 18px rgba(152,231,255,0.25)); }
.brand-logo.small { width: 18px; height: 18px; }
.brand .brand-text { font-size: 18px; }
.nav { display: none; gap: 22px; margin-left: auto; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--text); }
.lang-switch { margin-left: auto; display: inline-flex; background: #0e141b; border: 1px solid #1e2935; border-radius: 999px; overflow: hidden; }
.lang-switch button { background: transparent; color: var(--muted); border: 0; padding: 8px 12px; cursor: pointer; font-weight: 600; }
.lang-switch button.active { background: linear-gradient(135deg, rgba(90,200,250,0.2), rgba(122,92,255,0.2)); color: var(--text); }

.hero { padding: 92px 0 40px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 28px; align-items: center; }
.hero-copy .title { font-size: clamp(34px, 5vw, 56px); line-height: 1.04; margin: 0 0 12px; letter-spacing: -0.2px; font-weight: 800; }
.hero-copy .subtitle { margin: 0 0 18px; color: var(--muted); font-size: 16px; }
.cta { display: flex; gap: 12px; margin: 16px 0 10px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 12px; text-decoration: none; font-weight: 700; font-size: 14px; }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--accent)); color: #0b0f13; box-shadow: 0 10px 24px rgba(122,92,255,0.35); }
.btn.ghost { border: 1px solid #2a3645; color: var(--text); }
.badges { list-style: none; padding: 0; margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.badges li { padding-left: 10px; border-left: 2px solid #243243; margin: 6px 0; }
.hero-art { height: 360px; position: relative; }
.hero-art .halo { position: absolute; right: -10%; top: -20%; width: 720px; height: 720px; background: radial-gradient(circle at 60% 40%, rgba(152,231,255,0.35), rgba(122,92,255,0.22) 50%, transparent 60%); filter: blur(10px); border-radius: 50%; }
.hero-art .device-card { position: absolute; right: 6%; top: 10%; width: clamp(240px, 36vw, 420px); height: clamp(240px, 36vw, 420px); background: transparent; border: 0; border-radius: 0; box-shadow: none; display: grid; place-items: center; overflow: visible; }
.hero-art .device-card img { width: 90%; height: 90%; object-fit: contain; opacity: 0.95; }

.section { padding: 44px 0; }
.section.alt { background: linear-gradient(180deg, rgba(18,24,32,0.7), rgba(18,24,32,0)); }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 18px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.two-col { display: grid; grid-template-columns: 1fr; gap: 18px; align-items: start; }
.card { background: var(--panel); border: 1px solid #1e2935; border-radius: 14px; padding: 18px; box-shadow: 0 6px 18px var(--shadow); }
.card h3 { margin: 0 0 6px; }
.panel { background: var(--panel); border: 1px solid #1e2935; border-radius: 14px; padding: 16px; }
.steps { margin: 8px 0 0; padding-left: 18px; }
.list { margin: 8px 0 0; padding-left: 16px; }
.spec { background: var(--panel); border: 1px solid #1e2935; border-radius: 14px; padding: 16px; box-shadow: 0 6px 18px var(--shadow); }
.spec .k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
.spec .v { font-weight: 700; margin-top: 4px; }
.pill { background: rgba(122,92,255,0.15); border: 1px solid #2a3645; border-radius: 999px; padding: 10px 14px; text-align: center; color: var(--text); }

/* Plans section */
.plans .center { text-align: center; margin: 0 0 16px; font-size: clamp(22px, 3.2vw, 32px); }
.plans-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.plan { background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)); border: 1px solid #27374a; border-radius: 18px; padding: 18px; box-shadow: 0 12px 36px rgba(0,0,0,0.35); }
.plan.featured { border-color: #3a4f66; box-shadow: 0 20px 60px rgba(122,92,255,0.25); position: relative; }
.plan .features { margin: 12px 0 16px; padding-left: 18px; }
.plan header h3 { margin: 0; font-size: 18px; }
.plan header p { margin: 4px 0 0; }
.plan .price { margin-top: 8px; font-weight: 800; font-size: clamp(22px, 3.6vw, 36px); letter-spacing: -0.5px; background: linear-gradient(135deg, var(--brand), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.footer { border-top: 1px solid #1e2935; margin-top: 24px; padding: 22px 0 10px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 12px; align-items: center; }
.brand-line { display: flex; align-items: center; gap: 10px; }
.footer .logo { width: 12px; height: 12px; background: linear-gradient(135deg, var(--brand), var(--accent)); border-radius: 50%; box-shadow: 0 6px 20px rgba(90,200,250,0.35); }
.footer .links { display: flex; gap: 14px; }
.footer .links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.footer .links a:hover { color: var(--text); }
.copyright { color: var(--muted); padding: 6px 0 0; text-align: center; }

/* Gallery */
/* Alternating gallery rows */
.gallery-alt .gallery-rows { display: grid; gap: 22px; }
.gallery-alt .row { display: grid; grid-template-columns: 1fr; gap: 14px; align-items: center; }
.gallery-alt .media { background: transparent; border-radius: 16px; overflow: hidden; }
.gallery-alt .media img { width: 100%; height: auto; display: block; object-fit: contain; }
.gallery-alt .media.shrink-15 img { width: 85%; margin: 0 auto; }
.gallery-alt .copy h3 { margin: 0 0 4px; }
.gallery-alt .copy p { margin: 0; }

/* Scenes wide one-screen band */
.scenes-wide { background: linear-gradient(180deg, rgba(18,24,32,0), rgba(18,24,32,0.5)); padding: 12px 0 28px; }
.scenes-wide .strip { width: min(1100px, 92vw); margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.scenes-wide .tile { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid #213244; background: #0f141a; }
.scenes-wide .tile { aspect-ratio: 3 / 2; }
.scenes-wide .tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scenes-wide .hide-sm { display: none; }

@media (min-width: 860px) {
  .nav { display: flex; }
  .lang-switch { margin-left: 12px; }
  .hero { padding: 120px 0 64px; }
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .two-col { grid-template-columns: 1.2fr 0.8fr; }
  .footer-grid { grid-template-columns: 1fr auto; }
  .plans-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-alt .row { grid-template-columns: 1.1fr 0.9fr; }
  .gallery-alt .row:nth-child(even) .media { order: 2; }
  .gallery-alt .row:nth-child(even) .copy { order: 1; }
  .scenes-wide .strip { grid-template-columns: repeat(4, 1fr); }
  .scenes-wide .hide-sm { display: block; }
}