@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&family=Noto+Sans+JP:wght@400;500;700&family=Noto+Sans+KR:wght@400;500;700&family=Poppins:wght@400;500;600;700;800&display=swap');

html, body { margin: 0; padding: 0; background: #ffffff; }

.nc-data {
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334152;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --cyan-50: #ecfeff;
  --cyan-600: #0891b2;
  --cyan-700: #0e7490;
  --amber-50: #fffbeb;
  --amber-700: #b45309;
  --white: #ffffff;
  color: var(--slate-900);
  background: var(--white);
  font-family: 'Poppins', 'Noto Sans TC', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}

.nc-data:lang(ja) { font-family: 'Poppins', 'Noto Sans JP', 'Noto Sans TC', 'Noto Sans KR', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
.nc-data:lang(ko) { font-family: 'Poppins', 'Noto Sans KR', 'Noto Sans TC', 'Noto Sans JP', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }

.nc-data *, .nc-data *::before, .nc-data *::after { box-sizing: border-box; }
.nc-data a { color: inherit; }

.nc-data .container { width: min(820px, 100%); margin: 0 auto; padding: 0 1.5rem; }

.nc-data .header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--slate-200);
}
.nc-data .nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.nc-data .brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; font-size: 1.1rem; font-weight: 700; color: var(--slate-900); }
.nc-data .brand img { flex-shrink: 0; display: block; }
.nc-data .home-link { color: var(--cyan-700); font-weight: 600; text-decoration: none; font-size: .92rem; }
.nc-data .home-link:hover { text-decoration: underline; }

.nc-data .breadcrumb { font-size: .85rem; color: var(--slate-500); margin: 1.75rem 0 .5rem; }
.nc-data .breadcrumb a { color: var(--slate-500); text-decoration: none; }
.nc-data .breadcrumb a:hover { color: var(--cyan-700); text-decoration: underline; }

.nc-data .section { padding: 1.5rem 0 5rem; }

.nc-data h1, .nc-data h2, .nc-data h3, .nc-data p { margin-top: 0; }
.nc-data h1, .nc-data h2, .nc-data h3 { text-wrap: balance; }
.nc-data .lead, .nc-data .body-copy { text-wrap: pretty; }

.nc-data h1 { max-width: 760px; margin-bottom: .75rem; font-size: clamp(1.8rem, 4.5vw, 2.5rem); font-weight: 800; line-height: 1.2; }
.nc-data h2 { max-width: 760px; margin: 2.25rem 0 1rem; font-size: clamp(1.25rem, 3vw, 1.5rem); font-weight: 800; line-height: 1.25; }
.nc-data h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .5rem; }
.nc-data .lead { max-width: 720px; color: var(--slate-700); font-size: clamp(1.02rem, 2vw, 1.15rem); margin-bottom: 1rem; }
.nc-data .body-copy { max-width: 720px; color: var(--slate-700); font-size: 1.02rem; line-height: 1.85; margin-bottom: 1rem; }
.nc-data .small-copy { max-width: 720px; color: var(--slate-500); font-size: .88rem; line-height: 1.7; }

.nc-data .pill { display: inline-flex; align-items: center; padding: .2rem .65rem; border-radius: 9999px; font-size: .78rem; font-weight: 600; }
.nc-data .pill-slate { background: var(--slate-100); color: var(--slate-700); }
.nc-data .pill-cyan { background: var(--cyan-50); color: var(--cyan-700); }

/* 資料庫規模統計 */
.nc-data .stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin: 1.5rem 0 2rem; }
.nc-data .stat-card { background: var(--slate-50); border-radius: .9rem; padding: 1.1rem 1.25rem; }
.nc-data .stat-num { font-size: 1.8rem; font-weight: 800; color: var(--cyan-700); line-height: 1.1; }
.nc-data .stat-label { font-size: .8rem; color: var(--slate-500); margin-top: .3rem; }

/* 兩層授權說明 */
.nc-data .tier-card {
  border: 1px solid var(--slate-200); border-radius: 1rem;
  padding: 1.5rem; margin-bottom: 1.25rem;
}
.nc-data .tier-card h3 { margin-bottom: .4rem; }
.nc-data .citation-box {
  background: var(--slate-800); color: var(--slate-100); border-radius: .6rem;
  padding: .9rem 1.1rem; font-size: .86rem; font-family: 'SFMono-Regular', Consolas, monospace;
  margin: .75rem 0; overflow-x: auto; white-space: pre-wrap;
}

/* 登記表單(換取原始資料下載) */
.nc-data form { display: grid; gap: .9rem; max-width: 480px; }
.nc-data label { display: grid; gap: .35rem; font-size: .88rem; font-weight: 600; color: var(--slate-700); }
.nc-data input, .nc-data select, .nc-data textarea {
  font: inherit; padding: .6rem .75rem; border: 1px solid var(--slate-300); border-radius: .5rem;
  background: var(--white); color: var(--slate-900);
}
.nc-data input:focus, .nc-data select:focus, .nc-data textarea:focus { outline: 2px solid var(--cyan-600); outline-offset: 1px; }
.nc-data .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .7rem 1.4rem; border-radius: 9999px; font-weight: 700; font-size: .92rem;
  text-decoration: none; border: 0; cursor: pointer; width: fit-content;
}
.nc-data .btn-primary { background: var(--cyan-600); color: var(--white); }
.nc-data .btn-primary:hover { background: var(--cyan-700); }
.nc-data .btn-outline { background: transparent; color: var(--cyan-700); border: 1px solid var(--cyan-600); }
.nc-data .fine-print { font-size: .82rem; color: var(--slate-500); margin-top: .25rem; }
.nc-data .downloads-box { display: none; margin-top: 1.25rem; padding: 1.25rem; background: var(--cyan-50); border-radius: .9rem; }
.nc-data .downloads-box.is-visible { display: block; }
.nc-data .downloads-box ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.nc-data .downloads-box a { color: var(--cyan-700); font-weight: 600; }

.nc-data .lang-switcher {
  margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--slate-200);
  font-size: .88rem; color: var(--slate-500);
}
.nc-data .lang-switcher a { color: var(--cyan-700); text-decoration: underline; margin-left: .3rem; }

.nc-data .footer { padding: 2rem 0; border-top: 1px solid var(--slate-200); color: var(--slate-500); font-size: .88rem; text-align: center; }

@media (max-width: 640px) {
  .nc-data .container { padding: 0 1rem; }
  .nc-data .stat-grid { grid-template-columns: repeat(2, 1fr); }
}