:root {
  --bg: #07081a;
  --bg-2: #0d1028;
  --panel: #12152e;
  --line: #222852;
  --text: #e8ecff;
  --muted: #8a93b8;
  --blue: #4fd1ff;
  --purple: #a66bff;
  --green: #7dff9b;
  --grad: linear-gradient(90deg, var(--blue), var(--purple));
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Noto Sans TC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(7, 8, 26, .75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: Orbitron, sans-serif; font-weight: 800; letter-spacing: 2px; }
.links { display: flex; align-items: center; gap: 28px; font-size: .95rem; }
.links a { color: var(--muted); transition: color .2s; }
.links a:hover { color: var(--text); }
.btn-sm { padding: 6px 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--text) !important; }
.btn-sm:hover { border-color: var(--blue); }

/* Hero */
.hero { position: relative; padding: 120px 0 100px; overflow: hidden; }
.grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 10%, transparent 70%);
  opacity: .6;
}
.hero::after {
  content: ""; position: absolute; width: 600px; height: 600px; left: 50%; top: -200px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(166,107,255,.25), transparent 65%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.eyebrow { font-family: Orbitron, sans-serif; letter-spacing: 4px; color: var(--blue); font-size: .8rem; text-transform: uppercase; margin-bottom: 18px; }
.hero h1 { font-size: clamp(2.2rem, 6vw, 4.2rem); font-weight: 900; line-height: 1.2; }
.lead { max-width: 620px; margin: 22px auto 0; color: var(--muted); font-size: 1.1rem; }
.hero-cta { display: flex; justify-content: center; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 999px; font-weight: 700;
  background: var(--grad); color: #07081a; transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(79,209,255,.3); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--purple); box-shadow: none; }
.hero-stats { list-style: none; display: flex; justify-content: center; gap: 56px; margin-top: 64px; flex-wrap: wrap; }
.hero-stats b { display: block; font-family: Orbitron, sans-serif; font-size: 1.6rem; }
.hero-stats span { color: var(--muted); font-size: .9rem; }

/* Product */
.product { padding: 110px 0; border-top: 1px solid var(--line); }
.product.alt { background: linear-gradient(180deg, var(--bg-2), var(--bg)); }
.product-inner { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: center; }
.product-inner.reverse { grid-template-columns: 1.4fr 1fr; }
.product-inner.reverse .product-text { order: 2; }
.tag { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: .8rem; font-weight: 700; }
.tag-blue { background: rgba(79,209,255,.12); color: var(--blue); }
.tag-purple { background: rgba(166,107,255,.14); color: var(--purple); }
.product-name { font-family: Orbitron, sans-serif; font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 14px 0 12px; letter-spacing: 2px; }
#aeronyx .product-name { background: linear-gradient(90deg, #e8f7ff, var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
#tvision .product-name { background: linear-gradient(90deg, #e6dcff, var(--purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.product-desc { color: var(--muted); font-size: 1.05rem; }
.features { list-style: none; margin-top: 24px; display: grid; gap: 10px; }
.features li { display: flex; gap: 10px; }
.features i { font-style: normal; color: var(--blue); }
#tvision .features i { color: var(--purple); }

/* Device mockups */
.shots { display: flex; gap: 20px; align-items: flex-end; justify-content: center; }
.device { flex: 0 1 300px; text-align: center; }
.device.small { flex-basis: 230px; }
.device.wide { flex: 1 1 auto; max-width: 640px; }
.screen {
  display: block; width: 100%; height: auto;
  border-radius: 18px; border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0,0,0,.55), 0 0 0 6px #0f1230;
}
.device.wide .screen { border-radius: 12px; }
figcaption { margin-top: 14px; color: var(--muted); font-size: .85rem; }
.blink { animation: blink 1.4s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }
.stars { animation: twinkle 3s ease-in-out infinite alternate; }
@keyframes twinkle { from { opacity: .5; } to { opacity: 1; } }

/* More */
.more { padding: 110px 0; border-top: 1px solid var(--line); text-align: center; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 900; }
.section-sub { color: var(--muted); margin-top: 10px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 32px 24px;
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--blue); }
.card-icon { font-size: 2.2rem; margin-bottom: 12px; }
.card h3 { font-size: 1.2rem; }
.card p { color: var(--muted); }
.status { display: inline-block; margin-top: 16px; padding: 4px 14px; border-radius: 999px; font-size: .8rem; border: 1px dashed var(--muted); color: var(--muted); }
.status.live { border: 1px solid var(--green); color: var(--green); }
.card.soon { border-style: dashed; background: transparent; }
.card.soon .card-icon { font-family: Orbitron, sans-serif; font-weight: 800; color: var(--purple); }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .product-inner, .product-inner.reverse { grid-template-columns: 1fr; gap: 40px; }
  .product-inner.reverse .product-text { order: 0; }
  .cards { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .links a:not(.btn-sm) { display: none; }
  .hero { padding: 80px 0 70px; }
  .hero-stats { gap: 28px; }
  .shots { gap: 12px; }
  .product { padding: 72px 0; }
}