:root {
  color-scheme: light;
  --ink: #101820;
  --muted: #5f6b7a;
  --paper: #f7f4ee;
  --panel: #ffffff;
  --line: #d9d2c5;
  --accent: #276d5d;
  --accent-2: #d46a2c;
  --accent-3: #263e68;
  --shadow: 0 20px 60px rgba(16, 24, 32, 0.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.7;
}
a { color: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(16, 24, 32, 0.1);
  background: rgba(247, 244, 238, 0.88);
  backdrop-filter: blur(16px);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 20px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}
.brand small { display: block; color: var(--muted); font-size: 13px; line-height: 1.2; }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-actions a { color: var(--muted); font-size: 15px; font-weight: 800; text-decoration: none; }
.install-button, .primary-link, .secondary-link, .read-link {
  min-height: 44px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
}
.install-button, .primary-link { background: var(--ink); color: #fff; }
.secondary-link, .read-link { background: transparent; color: var(--ink); }
main { max-width: 1120px; margin: 0 auto; padding: 0 20px 56px; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.7fr);
  gap: 28px;
  min-height: calc(100vh - 74px);
  align-items: center;
  padding: 44px 0 28px;
}
.hero-copy h1, .article-hero h1 {
  max-width: 820px;
  margin: 8px 0 18px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
}
.hero-copy p:not(.eyebrow), .article-hero > p:not(.eyebrow) { max-width: 680px; color: var(--muted); font-size: 19px; }
.eyebrow {
  margin: 0;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-panel, .summary-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 28px;
}
.hero-panel span { display: block; color: var(--accent); font-weight: 800; }
.hero-panel strong { display: block; margin: 12px 0; font-size: 30px; line-height: 1.2; }
.hero-panel p, .summary-panel p { margin: 0; color: var(--muted); }
.section { padding: 42px 0; }
.section-heading { margin-bottom: 16px; }
.split-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.split-heading > p { max-width: 420px; margin: 0; color: var(--muted); }
.section-heading h2, .full-article h2, .workflow h2, .summary-panel h2 { margin: 6px 0 0; font-size: 34px; line-height: 1.2; }
.article-list { display: grid; gap: 18px; }
.article-card {
  display: flex;
  gap: 24px;
  align-items: flex-end;
  justify-content: space-between;
  border-top: 3px solid var(--ink);
  background: var(--panel);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(16, 24, 32, 0.08);
}
.library-card { transition: transform 160ms ease, box-shadow 160ms ease; }
.library-card:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(16, 24, 32, 0.12); }
.article-meta, .article-meta-line { margin: 0 0 10px; color: var(--accent); font-weight: 800; }
.article-card h3 { margin: 0; max-width: 800px; font-size: 26px; line-height: 1.25; }
.article-card p:last-child { max-width: 820px; margin-bottom: 0; color: var(--muted); }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag-row span {
  border: 1px solid rgba(39, 109, 93, 0.28);
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}
.grid-section { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.insight-card {
  min-height: 260px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 22px;
}
.compact-card { min-height: 220px; }
.card-number { color: var(--accent-2); font-weight: 900; }
.insight-card h3 { margin: 28px 0 10px; font-size: 23px; }
.insight-card p { margin: 0; color: var(--muted); }
.full-article, .workflow, .source-box, .article-hero {
  border-radius: 8px;
  background: var(--panel);
  padding: 34px;
  box-shadow: 0 10px 30px rgba(16, 24, 32, 0.08);
}
.article-page { padding-top: 32px; }
.article-hero { margin-bottom: 24px; }
.article-hero h1 { font-size: clamp(38px, 5vw, 64px); }
.article-meta-line { display: flex; flex-wrap: wrap; gap: 14px; }
.back-link { display: inline-flex; margin-bottom: 16px; color: var(--accent-3); font-weight: 900; text-decoration: none; }
.summary-panel { margin-bottom: 26px; box-shadow: none; }
.full-article > p:not(.eyebrow) { color: var(--muted); font-size: 18px; }
.article-body { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 28px; margin-top: 22px; }
.article-body h3 { margin: 22px 0 6px; color: var(--accent-3); }
.article-body p { margin: 0; color: var(--muted); }
.article-keypoints { padding-top: 18px; }
.workflow {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 32px;
  margin-top: 34px;
  background: var(--ink);
  color: #fff;
}
.workflow .eyebrow { color: #f2a45f; }
.workflow ol { display: grid; gap: 12px; margin: 0; padding-left: 22px; }
.workflow li { color: rgba(255, 255, 255, 0.82); }
.workflow strong, .workflow code { color: #fff; }
.source-box { margin-top: 24px; border: 1px solid var(--line); box-shadow: none; }
.source-box p { margin: 0 0 6px; color: var(--muted); }
.source-box strong { display: block; margin-bottom: 18px; font-size: 18px; }
.source-title { margin-top: 18px !important; }
.source-box a { color: var(--accent-3); font-weight: 800; }
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
}
.article-nav a {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
  color: var(--accent-3);
  font-weight: 900;
  text-decoration: none;
}
.compact-hero {
  min-height: auto;
  padding: 38px 0 24px;
}
.compact-hero .hero-copy h1 {
  font-size: clamp(40px, 5vw, 64px);
}
.compact-hero .hero-actions {
  margin-top: 20px;
}
.first-section {
  padding-top: 28px;
}
.featured-card {
  border-top-color: var(--accent-2);
}
.compact-list-card {
  align-items: center;
  padding: 18px 22px;
  border-top-width: 1px;
  box-shadow: none;
}
.compact-list-card h3 {
  font-size: 21px;
}
.compact-list-card p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.compact-list-card .tag-row {
  margin-top: 10px;
}
.keypoint-strip {
  margin-bottom: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 26px 30px;
}
.keypoint-strip h2 {
  margin: 6px 0 14px;
  font-size: 30px;
  line-height: 1.2;
}
.keypoint-strip ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.keypoint-strip li {
  display: grid;
  grid-template-columns: minmax(150px, 0.34fr) 1fr;
  gap: 16px;
  border-top: 1px solid rgba(16, 24, 32, 0.1);
  padding-top: 12px;
}
.keypoint-strip strong {
  color: var(--accent-3);
}
.keypoint-strip span {
  color: var(--muted);
}
@media (max-width: 880px) {
  .hero, .workflow, .article-body { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 34px; }
  .grid-section { grid-template-columns: 1fr 1fr; }
  .split-heading { display: block; }
  .split-heading > p { margin-top: 10px; }
}
@media (max-width: 620px) {
  .nav, main { padding-left: 16px; padding-right: 16px; }
  .nav { align-items: flex-start; }
  .nav-actions { gap: 10px; }
  .nav-actions a { display: none; }
  .hero-copy h1, .article-hero h1 { font-size: 40px; }
  .compact-hero { padding-top: 26px; }
  .compact-hero .hero-copy h1 { font-size: 38px; }
  .hero-copy p:not(.eyebrow), .article-hero > p:not(.eyebrow) { font-size: 17px; }
  .article-card { display: block; padding: 22px; }
  .compact-list-card { padding: 18px; }
  .compact-list-card h3 { font-size: 20px; }
  .read-link { display: inline-flex; align-items: center; margin-top: 18px; }
  .grid-section { grid-template-columns: 1fr; }
  .full-article, .workflow, .source-box, .article-hero, .summary-panel, .keypoint-strip { padding: 24px; }
  .keypoint-strip li { grid-template-columns: 1fr; gap: 4px; }
  .article-nav { display: grid; }
}