:root {
  --ink: #2a241d;
  --paper: #fbf8f2;
  --paper-alt: #f2ece0;
  --accent: #8a5a2b;
  --accent-dark: #5f3d1c;
  --line: #ddd0ba;
  --notice-bg: #fff2d6;
  --notice-border: #c98a1c;
  --max-w: 780px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ece5d8;
    --paper: #1c1812;
    --paper-alt: #241f18;
    --accent: #d3a15e;
    --accent-dark: #e8c48a;
    --line: #453a29;
    --notice-bg: #3a2c11;
    --notice-border: #d3a15e;
  }
}

:root[data-theme="dark"] {
  --ink: #ece5d8;
  --paper: #1c1812;
  --paper-alt: #241f18;
  --accent: #d3a15e;
  --accent-dark: #e8c48a;
  --line: #453a29;
  --notice-bg: #3a2c11;
  --notice-border: #d3a15e;
}

:root[data-theme="light"] {
  --ink: #2a241d;
  --paper: #fbf8f2;
  --paper-alt: #f2ece0;
  --accent: #8a5a2b;
  --accent-dark: #5f3d1c;
  --line: #ddd0ba;
  --notice-bg: #fff2d6;
  --notice-border: #c98a1c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
}

body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.9;
  font-size: 16px;
  overflow-x: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar a.back {
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
}

.topbar .case-name {
  font-size: 0.85rem;
  color: var(--ink);
  opacity: 0.7;
  text-align: right;
}

main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 20px 18px 80px;
}

h1 {
  font-size: 1.5rem;
  text-align: center;
  border-bottom: 3px double var(--accent);
  padding-bottom: 14px;
  margin: 8px 0 20px;
}

h2 {
  font-size: 1.05rem;
  margin: 32px 0 10px;
  padding: 8px 12px;
  background: var(--paper-alt);
  border-left: 4px solid var(--accent);
  border-radius: 2px;
  scroll-margin-top: 64px;
}

h2.attach-head {
  border-left-color: var(--accent-dark);
  font-weight: 700;
}

p {
  margin: 10px 0;
  word-break: break-word;
}

p.sign-line {
  color: var(--accent-dark);
  font-weight: 700;
}

.blank {
  display: inline-block;
  min-width: 3em;
  border-bottom: 1px solid var(--ink);
  margin: 0 2px;
}

.notice {
  background: var(--notice-bg);
  border: 1px solid var(--notice-border);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 16px 0;
  font-weight: 600;
  line-height: 1.8;
}

.star-note {
  background: var(--paper-alt);
  border-left: 3px solid var(--accent);
  padding: 8px 12px;
  margin: 10px 0;
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
  margin: 14px 0;
  border: 1px solid var(--line);
  border-radius: 6px;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.82rem;
}

td {
  border: 1px solid var(--line);
  padding: 6px 8px;
  white-space: nowrap;
}

details.toc {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 18px 0;
}

details.toc summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--accent-dark);
}

ul.toc {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  max-height: 340px;
  overflow-y: auto;
}

ul.toc li a {
  display: block;
  padding: 6px 4px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  font-size: 0.92rem;
}

ul.toc li a:hover { color: var(--accent-dark); }

.review-banner {
  background: var(--notice-bg);
  border: 1px solid var(--notice-border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 18px;
  text-align: center;
  font-weight: 700;
}

.review-banner small {
  display: block;
  font-weight: 400;
  margin-top: 6px;
  opacity: 0.85;
}

footer.page-end {
  max-width: var(--max-w);
  margin: 40px auto 0;
  padding: 0 18px 40px;
  text-align: center;
  color: var(--ink);
  opacity: 0.7;
  font-size: 0.85rem;
}

.home-card {
  display: block;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 16px 0;
  text-decoration: none;
  color: var(--ink);
}

.home-card .title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.home-card .desc {
  margin-top: 6px;
  font-size: 0.9rem;
  opacity: 0.85;
}

.qr-box {
  text-align: center;
  margin: 24px 0;
}

.qr-box img {
  width: 180px;
  height: 180px;
  border: 8px solid #fff;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.qr-box p {
  font-size: 0.85rem;
  opacity: 0.75;
}

@media print {
  .topbar, details.toc, .qr-box, footer.page-end { display: none; }
  main { max-width: 100%; }
  h2 { break-after: avoid; }
}