:root {
  color-scheme: light;
  --ink: #231f20;
  --muted: #6a625c;
  --paper: #fffaf2;
  --surface: #ffffff;
  --line: #eadfce;
  --orange: #f5a11a;
  --red: #ee5945;
  --green: #a9d300;
  --green-dark: #708a00;
  --shadow: 0 14px 42px rgba(112, 75, 43, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(180deg, #fff7e9 0%, #fffdf8 42%, #f6fbdf 100%);
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
  line-height: 1.78;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 250, 242, 0.92);
  border-bottom: 1px solid rgba(238, 89, 69, 0.14);
  backdrop-filter: blur(16px);
}

.brand img {
  display: block;
  width: min(210px, 42vw);
  height: auto;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 12px;
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-radius: 999px;
  background: #fff;
  color: #342c26;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.top-nav a[aria-current="page"],
.top-nav a:hover {
  border-color: rgba(238, 89, 69, 0.34);
  background: #fff2e5;
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.index-hero,
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(20px, 4vw, 44px);
  align-items: center;
  min-height: 360px;
  padding: clamp(36px, 7vw, 84px) 0 clamp(28px, 5vw, 56px);
}

.index-hero img {
  width: min(330px, 38vw);
  filter: drop-shadow(0 16px 28px rgba(35, 31, 32, 0.12));
}

.kicker {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 7vw, 70px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 58px);
}

.index-hero p,
.hero p {
  max-width: 720px;
  margin: 18px 0 0;
  color: #554a43;
  font-size: clamp(17px, 2vw, 22px);
}

.hero__meta {
  display: grid;
  gap: 12px;
}

.hero__aside {
  display: grid;
  gap: 14px;
  width: min(360px, 32vw);
  min-width: 300px;
}

.hero__meta div {
  padding: 16px 18px;
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-left: 8px solid var(--red);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.manual--orange .hero__meta div { border-left-color: var(--orange); }
.manual--green .hero__meta div { border-left-color: var(--green); }

.hero__meta span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.hero__meta strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.hero-visual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.hero-visual figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(112, 75, 43, 0.1);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: 132px;
  object-fit: contain;
  padding: 10px;
}

.hero-visual figcaption {
  min-height: 54px;
  padding: 8px 10px 10px;
  border-top: 1px solid rgba(35, 31, 32, 0.08);
  color: #5d5148;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.manual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 70px;
}

.manual-card {
  display: grid;
  min-height: 260px;
  align-content: start;
  gap: 10px;
  padding: 26px;
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-top: 12px solid var(--orange);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
  text-decoration: none;
}

.manual-card--red { border-top-color: var(--red); }
.manual-card--green { border-top-color: var(--green); }

.manual-card span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 900;
}

.manual-card strong {
  font-size: 26px;
  line-height: 1.2;
}

.manual-card em {
  color: var(--red);
  font-style: normal;
  font-weight: 900;
}

.manual-card p {
  margin: 0;
  color: #5c524b;
}

.content {
  margin-bottom: 84px;
  padding: clamp(22px, 4vw, 48px);
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.content h2 {
  margin: 42px 0 16px;
  padding: 0 0 10px;
  border-bottom: 4px solid #ffe0bd;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.25;
}

.manual--red .content h2 { border-bottom-color: #ffd8d1; }
.manual--green .content h2 { border-bottom-color: #e9f7a1; }

.content h3 {
  margin: 32px 0 10px;
  color: #42362f;
  font-size: 22px;
}

.content h4 {
  margin: 24px 0 8px;
  color: #584a40;
  font-size: 18px;
}

.content p,
.content li {
  font-size: 17px;
}

.content p {
  margin: 0 0 14px;
}

.content ul,
.content ol {
  margin: 0 0 18px;
  padding-left: 1.5em;
}

.content li + li {
  margin-top: 6px;
}

.table-scroll {
  overflow-x: auto;
  margin: 18px 0 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #fff0d7;
  color: #3b2f28;
  font-weight: 900;
}

tr:nth-child(even) td {
  background: #fffaf2;
}

.visual-guide {
  margin: 18px 0 28px;
  padding: 18px;
  border: 1px solid rgba(169, 211, 0, 0.32);
  border-radius: 8px;
  background: linear-gradient(135deg, #fffdf5, #f9ffe1);
}

.visual-guide__title {
  margin-bottom: 12px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 900;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.image-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(35, 31, 32, 0.08);
  border-radius: 8px;
  background: #fff;
}

.image-card img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: contain;
  padding: 12px;
  background: #fff;
}

.image-card figcaption {
  min-height: 68px;
  padding: 12px 14px 14px;
  border-top: 1px solid rgba(35, 31, 32, 0.08);
  color: #5d5148;
  font-size: 14px;
  line-height: 1.55;
}

.reference-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.reference-links h2 {
  flex: 0 0 100%;
  margin-top: 0;
}

.reference-links a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: #fff2e5;
  color: #332820;
  font-weight: 900;
  text-decoration: none;
}

@media (max-width: 820px) {
  .site-header,
  .index-hero,
  .hero {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .manual-grid {
    grid-template-columns: 1fr;
  }

  .index-hero img {
    width: min(280px, 82vw);
  }

  .hero__meta {
    min-width: 0;
  }

  .hero__aside {
    width: 100%;
    min-width: 0;
  }

  .content {
    padding: 20px;
  }

  table {
    min-width: 620px;
  }
}