:root {
  --bg: #0d0d0d;
  --gold: #c9922a;
  --card: #1c1a14;
  --text: #ffffff;
  --muted: #d6d6d6;
  --line: #2f2a1d;
  --line-green: #06c755;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, 92%); margin: 0 auto; }
.section { padding: 76px 0; }
.section-title { color: var(--gold); margin: 0 0 12px; font-size: clamp(1.6rem, 2.4vw, 2.2rem); }
.section-subtitle { margin: 0 0 24px; color: var(--muted); }
.navbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(13, 13, 13, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.nav-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand { color: var(--gold); font-weight: 900; letter-spacing: 0.5px; }
.nav-wrap { display: flex; align-items: center; gap: 16px; }
.nav-menu { display: flex; list-style: none; gap: 16px; margin: 0; padding: 0; }
.nav-menu a {
  color: var(--text);
  opacity: 0.9;
  padding: 6px 4px;
  border-bottom: 1px solid transparent;
  transition: 0.2s ease;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--gold); border-color: var(--gold); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--gold);
  font-weight: 700;
  transition: 0.2s ease;
  text-align: center;
}
.btn-gold { background: var(--gold); color: #1b1508; }
.btn-outline { color: var(--gold); background: transparent; }
.btn:hover { transform: translateY(-2px); }
.btn-gold:hover { filter: brightness(1.05); }
.btn-outline:hover { background: rgba(201, 146, 42, 0.15); }
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--gold);
  border-radius: 10px;
  background: transparent;
  color: var(--gold);
  cursor: pointer;
}
.hero {
  padding: 108px 0 76px;
  text-align: center;
  border-bottom: 2px solid var(--gold);
}
.hero h1 {
  color: var(--gold);
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.25;
}
.hero p { max-width: 860px; margin: 0 auto; color: var(--muted); }
.cta-row { margin-top: 28px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.grid-2, .grid-3, .grid-5 { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  transition: 0.25s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 146, 42, 0.65);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
}
.stat-card .stat-value { color: var(--gold); font-size: 2rem; font-weight: 900; line-height: 1.1; }
.stat-card .stat-label { margin-top: 6px; }
.pain-card { border-left: 4px solid var(--gold); }
.pain-card h3, .system-card h3, .case-card h3 { margin: 0 0 8px; color: #fff5e1; }
.pain-card p, .system-card p, .case-card p { margin: 0; color: var(--muted); }
.system-card .icon { color: var(--gold); font-size: 1.25rem; }
.case-card { border-color: var(--gold); }
.case-growth { margin: 8px 0; color: var(--gold); font-size: 1.26rem; font-weight: 900; }
.dual-cta { background: #14130f; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.dual-cta h2 { margin: 0 0 20px; font-size: clamp(1.5rem, 3vw, 2.1rem); color: #fff4dd; }
.list { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
footer { border-top: 2px solid var(--gold); padding: 30px 0 48px; }
.footer-brand { color: var(--gold); font-weight: 900; margin-bottom: 10px; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer-links a { color: #f3f3f3; opacity: 0.92; }
.footer-links a:hover { color: var(--gold); }
.floating-line {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--line-green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  box-shadow: 0 8px 20px rgba(0,0,0,.35);
  z-index: 35;
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1080px) {
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .hamburger { display: inline-grid; place-items: center; }
  .nav-wrap { position: relative; }
  .nav-menu {
    position: absolute;
    top: 58px;
    right: 0;
    width: min(82vw, 320px);
    background: #121212;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px;
    display: none;
    flex-direction: column;
    gap: 8px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { display: block; padding: 8px 10px; border-radius: 8px; border: 1px solid transparent; }
  .nav-menu a:hover, .nav-menu a.active { background: rgba(201,146,42,.14); border-color: rgba(201,146,42,.5); }
  .btn-consult { display: none; }
  .grid-2, .grid-3, .grid-5 { grid-template-columns: 1fr; }
}