:root {
  --bg: #0c1525;
  --bg-2: #121d31;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-hi: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.1);
  --line-hi: rgba(255, 255, 255, 0.18);
  --text: #f4f6fa;
  --text-2: #bbc4d8;
  --muted: #7f8ba6;
  --gold: #d4a656;
  --gold-bright: #e8c079;
  --teal: #4fb6b8;
  --blue: #5ea0e8;
  --serif: "Cormorant Garamond", "Noto Serif TC", Georgia, serif;
  --sans: "Noto Sans TC", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; max-width: 100%; }
button { font: inherit; color: inherit; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(22px) saturate(170%);
  background: color-mix(in oklch, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; }
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #b58a3d, #e8c079);
  color: #0c1525;
  font-weight: 900;
  box-shadow: 0 8px 24px rgba(212, 166, 86, 0.28);
}
.nav-menu { display: flex; gap: 4px; align-items: center; }
.nav-menu a {
  padding: 9px 13px;
  border-radius: 8px;
  color: var(--text-2);
  font-size: 14px;
}
.nav-menu a:hover,
.nav-menu a.active { background: var(--surface); color: var(--gold-bright); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.mobile-menu-toggle,
.mobile-menu-backdrop,
.mobile-menu-panel {
  display: none;
}
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line-hi);
  background: var(--surface);
  color: var(--text);
  font-weight: 800;
}
.btn-primary {
  border: 0;
  background: linear-gradient(135deg, #b58a3d, #e8c079);
  color: #0c1525;
}

.breadcrumb {
  padding-top: 34px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}
.breadcrumb a { color: var(--text-2); }
.breadcrumb .sep { margin: 0 8px; opacity: 0.55; }

.hero {
  padding: 54px 0 40px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 46px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
  color: var(--gold-bright);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(212, 166, 86, 0.7);
}
h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 64px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: 0;
}
h1 em { color: var(--gold-bright); font-style: italic; }
.lede {
  margin: 22px 0 0;
  color: var(--text-2);
  font-size: 18px;
  max-width: 680px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-media {
  border: 1px solid var(--line-hi);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-2);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}
.hero-media img { aspect-ratio: 16 / 10; object-fit: cover; }
.caption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.section { padding: 42px 0; }
.section h2 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: 0;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.card,
.note,
.cta-band {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.card { padding: 22px; }
.card .k {
  color: var(--gold-bright);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.card h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.35; }
.card p { margin: 0; color: var(--text-2); }
.list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--text-2);
}
.list li + li { margin-top: 9px; }
.note {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 18px;
  border-color: color-mix(in oklch, var(--teal) 48%, var(--line));
  background: color-mix(in oklch, var(--teal) 12%, transparent);
}
.note .ic {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--teal);
  color: #0c1525;
  font-weight: 900;
}
.note p { margin: 0; color: var(--text-2); }
.cta-band {
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(135deg, rgba(212,166,86,0.14), rgba(94,160,232,0.11));
}
.cta-band h2 { margin: 0 0 8px; }
.cta-band p { margin: 0; color: var(--text-2); }

.foot {
  margin-top: 44px;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}

@media (max-width: 900px) {
  .nav-menu { display: none; }
  .nav { overflow: visible; }
  .nav-inner {
    position: relative;
    z-index: 130;
  }
  .mobile-menu-toggle {
    display: inline-grid;
    place-items: center;
    position: relative;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text);
    flex: 0 0 auto;
  }
  .mobile-menu-toggle span {
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 18px;
    height: 2px;
    border-radius: 99px;
    background: currentColor;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .mobile-menu-toggle span:nth-child(1) {
    transform: translate(-50%, -50%) translateY(-6px);
  }
  .mobile-menu-toggle span:nth-child(2) {
    transform: translate(-50%, -50%);
  }
  .mobile-menu-toggle span:nth-child(3) {
    transform: translate(-50%, -50%) translateY(6px);
  }
  .mobile-menu-open .mobile-menu-toggle span:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg);
  }
  .mobile-menu-open .mobile-menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-open .mobile-menu-toggle span:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg);
  }
  .mobile-menu-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 110;
    border: 0;
    background: rgba(4, 8, 15, 0.55);
    backdrop-filter: blur(4px);
  }
  .mobile-menu-backdrop[hidden] { display: none; }
  .mobile-menu-panel {
    display: grid;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 140;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--line-hi);
    border-radius: 14px;
    background: color-mix(in oklch, var(--bg-2) 94%, black);
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
  }
  .mobile-menu-panel[hidden] { display: none; }
  .mobile-menu-panel a {
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--text-2);
    font-weight: 700;
  }
  .mobile-menu-panel a.active {
    background: var(--surface-hi);
    color: var(--gold-bright);
  }
  .hero-grid,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
  h1 { font-size: 46px; }
  .section h2 { font-size: 34px; }
  .cta-band { align-items: stretch; flex-direction: column; }
  .cta-band .btn { width: 100%; }
}

@media (max-width: 520px) {
  .wrap { width: min(100% - 28px, 1120px); }
  .nav-inner { min-height: 64px; }
  .brand-name { font-size: 16px; }
  .nav-actions .btn { display: none; }
  h1 { font-size: 39px; }
  .lede { font-size: 16px; }
  .hero { padding-top: 38px; }
  .section { padding: 34px 0; }
}