:root {
  --bg: #050810;
  --glass: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-strong: rgba(255, 255, 255, 0.11);
  --text: #f0f4ff;
  --muted: #9aa8c7;
  --accent: #6b9bff;
  --accent2: #a78bfa;
  --ok: #5ee9a8;
  --font: "Segoe UI", system-ui, "PingFang TC", "Microsoft JhengHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; color: var(--text); font-family: var(--font); background: var(--bg); scroll-behavior: smooth; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.bg-layer { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.bg-image {
  position: absolute; inset: -10%;
  background:
    url("https://images.unsplash.com/photo-1451187580450-43490279c0fa?auto=format&fit=crop&w=2400&q=80") center/cover no-repeat;
  filter: saturate(1.1) brightness(0.45);
  transform: scale(1.05);
}
.bg-mesh {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(79, 140, 255, 0.35), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(167, 139, 250, 0.22), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(94, 233, 168, 0.08), transparent);
}
.bg-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(5, 8, 16, 0.85) 72%);
}

.glass-bar {
  background: rgba(8, 12, 24, 0.55);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--glass-border);
}
.glass-panel {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 32px); position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 1.05rem; text-decoration: none; }
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 20px; flex-wrap: wrap; }
.nav a { color: var(--muted); font-size: 0.9rem; }
.nav a:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 14px; font-weight: 600; font-size: 0.92rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; border: none; text-decoration: none;
  box-shadow: 0 12px 36px rgba(79, 140, 255, 0.28);
  transition: transform 0.15s, filter 0.15s;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.08); text-decoration: none; }
.btn.ghost { background: rgba(255,255,255,0.06); border: 1px solid var(--glass-border); color: var(--text); box-shadow: none; }
.btn.sm { padding: 9px 16px; font-size: 0.85rem; }

.hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: stretch;
  max-width: 1120px; margin: 0 auto; padding: 56px clamp(16px, 4vw, 32px) 40px;
}
.hero-copy, .hero-visual { padding: clamp(24px, 4vw, 36px); }
.eyebrow { color: var(--muted); font-size: 0.8rem; letter-spacing: 0.04em; margin: 0 0 12px; }
.eyebrow a { color: var(--accent); font-weight: 600; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.12; margin: 0 0 16px; letter-spacing: -0.02em; }
.grad { background: linear-gradient(120deg, #a8c8ff, #c4b5fd, #7ee8b8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: 1.05rem; line-height: 1.75; margin: 0; max-width: 540px; }
.lead.center { margin-inline: auto; text-align: center; max-width: 640px; }
.cta-row { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.cta-row.center { justify-content: center; }

.live-strip {
  margin-top: 22px; padding: 10px 14px; border-radius: 12px;
  background: rgba(0,0,0,0.25); border: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.live-pill { padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.live-pill.ok { background: rgba(94,233,168,0.15); color: var(--ok); border: 1px solid rgba(94,233,168,0.35); }
.live-pill.warn { background: rgba(255,200,120,0.12); color: #ffc878; border: 1px solid rgba(255,200,120,0.3); }

.visual-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 0 0 16px; }
.stack-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.stack-list li {
  padding: 14px 16px; border-radius: 14px; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08); font-size: 0.92rem; line-height: 1.5;
}
.stack-list .tag {
  display: inline-block; min-width: 42px; margin-right: 8px; padding: 2px 8px;
  border-radius: 999px; font-size: 0.7rem; font-weight: 800; text-align: center;
  background: rgba(107,155,255,0.2); color: var(--accent);
}
.stack-list .tag.accent { background: rgba(167,139,250,0.2); color: var(--accent2); }
.stack-list .tag.ok { background: rgba(94,233,168,0.15); color: var(--ok); }

.section { max-width: 1120px; margin: 0 auto; padding: 48px clamp(16px, 4vw, 32px); }
.section-head { margin-bottom: 28px; }
.section-tag { color: var(--accent); font-size: 0.76rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 8px; }
.section h2 { font-size: clamp(1.45rem, 3vw, 2rem); margin: 0; line-height: 1.25; }

.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.bento-lg { grid-column: span 2; }
.bento-wide { grid-column: span 3; }
.bento article { padding: 24px; }
.bento .ic { font-size: 32px; color: var(--accent); display: block; margin-bottom: 10px; }
.bento h3 { margin: 0 0 8px; font-size: 1.05rem; }
.bento p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.65; }

.compare { padding: 0; overflow: hidden; }
.compare-row {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 12px;
  padding: 14px 20px; border-bottom: 1px solid rgba(255,255,255,0.06); align-items: center;
  font-size: 0.92rem;
}
.compare-row.head { font-weight: 700; color: var(--muted); background: rgba(255,255,255,0.03); }
.compare-row span:first-child { color: var(--muted); }
.compare-row .hi { color: var(--ok); font-weight: 600; }

.process { list-style: none; margin: 0; padding: 24px; display: grid; gap: 16px; counter-reset: step; }
.process li {
  display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; align-items: start;
  padding: 16px 18px; border-radius: 14px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
}
.process li strong { grid-column: 1 / -1; font-size: 1rem; }
.process li span { grid-column: 1 / -1; color: var(--muted); font-size: 0.88rem; }

.contact { text-align: center; padding: 48px 32px; margin-bottom: 32px; }
.contact h2 { margin: 0 0 12px; }

.foot { padding: 28px clamp(16px, 4vw, 32px) 36px; margin-top: 24px; }
.foot-inner {
  max-width: 1120px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.muted { color: var(--muted); }
.tiny { font-size: 0.78rem; }
.center { text-align: center; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .bento { grid-template-columns: 1fr; }
  .bento-lg, .bento-wide { grid-column: span 1; }
  .nav { display: none; }
  .foot-inner { grid-template-columns: 1fr; text-align: center; }
  .compare-row { grid-template-columns: 1fr; gap: 4px; }
  .compare-row.head { display: none; }
  .compare-row span:nth-child(2)::before { content: "傳統："; color: var(--muted); }
  .compare-row .hi::before { content: "HPOS："; color: var(--muted); }
}