:root {
  --bg: #071224;
  --bg-2: #0a1b33;
  --text: #e9edf6;
  --muted: #a8b4c8;
  --gold: #e8c58a;
  --cyan: #66d9ff;
  --card: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Noto Sans TC', system-ui, sans-serif;
  background: radial-gradient(circle at 10% 20%, #0f2a4b 0%, var(--bg) 45%, #050b15 100%);
  color: var(--text);
  line-height: 1.7;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(4, 10, 20, 0.65);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 0;
}
.logo {
  color: var(--gold);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 1px;
}
.nav nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
}

.hero { padding: 4.5rem 0 2.5rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}
.eyebrow {
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: 1.8px;
  margin-bottom: 0.6rem;
}
h1, h2, h3 {
  font-family: 'Noto Serif TC', serif;
  line-height: 1.25;
  margin: 0 0 0.8rem;
}
h1 { font-size: clamp(2rem, 4vw, 3.3rem); }
h1 span { color: var(--gold); }
.lead { font-size: 1.22rem; font-weight: 700; margin: 0.7rem 0; }
.sub { color: var(--muted); margin-top: 0; }

.hero-cover-wrap { text-align: center; }
.hero-cover {
  width: min(100%, 430px);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(4, 10, 20, 0.8), 0 0 40px rgba(102, 217, 255, 0.18);
}

.section { padding: 4rem 0; }
.section.alt {
  background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.04));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cards {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}
.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-col { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem 1.1rem 1rem;
}
.card h3 { margin-bottom: 0.5rem; color: var(--gold); }
.card p, .card li { color: #d6deeb; }
.card ul { margin: 0; padding-left: 1.1rem; }

.author-card { overflow: hidden; }
.author-photo {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--border);
  margin-bottom: 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  transform: scale(1);
  transition: transform 280ms ease, box-shadow 280ms ease, filter 280ms ease;
  will-change: transform;
}

.author-card:hover .author-photo {
  transform: scale(1.035);
  box-shadow: 0 10px 30px rgba(102, 217, 255, 0.2);
  filter: saturate(1.06) brightness(1.04);
}

.btn {
  display: inline-block;
  background: linear-gradient(90deg, #e8c58a, #f3d9ab);
  color: #101524;
  text-decoration: none;
  font-weight: 800;
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  border: 0;
  cursor: pointer;
}
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-small { padding: 0.45rem 0.85rem; font-size: 0.9rem; }
.cta-row { display: flex; gap: 0.8rem; margin-top: 1.2rem; }

.center { text-align: center; }
.subscribe {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.subscribe input {
  width: min(380px, 90vw);
  padding: 0.72rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: white;
}

.footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.footer-inner {
  padding: 1rem 0 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .hero-grid, .two-col, .three-col { grid-template-columns: 1fr; }
  .hero { padding-top: 3rem; }
  .nav nav a:not(.btn) { display: none; }
}