:root {
  --bg: #f8f9fb;
  --primary: #2d5be3;
  --text: #1f2933;
  --card: #ffffff;
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--card);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
}
header .logo { font-weight: 700; }
header nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
}
header nav a:hover { color: var(--primary); }

main { padding: 1.5rem; }

#hero {
  background: linear-gradient(120deg, #eaf1ff, #f7faff);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}
#hero h1 { margin-top: 0; }
#hero button {
  margin-top: 1rem;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
}

.gallery { margin-bottom: 2rem; }
.gallery h2 { margin-bottom: 0.8rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
figure {
  margin: 0;
  background: var(--card);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
figure img, video {
  width: 100%;
  display: block;
}
figcaption {
  padding: 0.75rem;
  font-size: 0.95rem;
}

.doc-list {
  list-style: none;
  padding-left: 0;
}
.doc-list li {
  background: var(--card);
  border-radius: 10px;
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow);
}
.doc-list a {
  display: block;
  padding: 0.75rem 1rem;
  text-decoration: none;
  color: var(--text);
}
.doc-list a:hover { color: var(--primary); }

footer {
  text-align: center;
  padding: 1rem 0;
  color: #6b7280;
}