:root {
  color-scheme: light;
  --bg: #ffa200;
  --panel: rgba(255, 255, 255, 0.8);
  --glass-soft: rgba(255, 255, 255, 0.66);
  --glass-line: rgba(255, 255, 255, 0.48);
  --ink: #1b1f22;
  --muted: #66706a;
  --accent: #0f8b8d;
  --accent-strong: #0a5f61;
  --code: rgba(255, 255, 255, 0.66);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.manual-shell {
  min-height: 100vh;
  padding: 32px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.manual-topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  align-items: center;
  margin: -32px -32px 28px;
  padding: 14px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 162, 0, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.brand-block {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.brand-line {
  display: flex;
  gap: 14px;
  align-items: center;
  min-width: 0;
  flex-wrap: wrap;
  color: #ffffff;
}

.brand-logo {
  display: block;
  width: min(156px, 34vw);
  height: auto;
  object-fit: contain;
}

.title {
  margin: 0;
  color: #ffffff;
  font-size: 29px;
  line-height: 1.15;
  min-width: 0;
}

.manual-title {
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  background: #111111;
  color: #ffffff;
  font-weight: 800;
}

.layout {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 28px;
  max-width: 1400px;
  margin: 0 auto;
}

aside,
main {
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: var(--panel);
  backdrop-filter: blur(18px) saturate(1.08);
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
  box-shadow: 0 18px 36px rgba(87, 54, 0, 0.08);
}

aside {
  position: sticky;
  top: 78px;
  align-self: start;
  max-height: calc(100vh - 102px);
  overflow: auto;
  padding: 16px;
}

aside h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

aside a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

aside a:hover {
  color: var(--accent-strong);
}

.toc-level-3 {
  padding-left: 14px;
  font-size: 13px;
}

main {
  min-width: 0;
  padding: 34px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(25px, 4.5vw, 38px);
  line-height: 1.2;
}

h2 {
  margin-top: 36px;
  padding-top: 12px;
  border-top: 1px solid var(--glass-line);
  font-size: 26px;
  line-height: 1.25;
}

h3 {
  margin-top: 28px;
  font-size: 20px;
}

h4,
h5,
h6 {
  margin-top: 22px;
}

p {
  margin: 12px 0;
}

ul,
ol {
  padding-left: 24px;
}

li {
  margin: 5px 0;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--code);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

pre {
  overflow: auto;
  padding: 16px;
  border-radius: 8px;
  background: #101418;
  color: #eef3ee;
  line-height: 1.5;
}

pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.42);
}

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

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(217, 222, 214, 0.72);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--glass-soft);
  font-weight: 800;
}

tr:last-child td {
  border-bottom: 0;
}

figure {
  margin: 22px 0;
}

figure img {
  display: block;
  max-width: 100%;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .manual-shell {
    padding: 12px;
  }

  .manual-topbar {
    margin: -12px -12px 16px;
    padding: 12px 16px;
  }

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

  aside {
    position: static;
    max-height: none;
  }

  main {
    padding: 22px;
  }

  .brand-logo {
    width: min(110px, 46vw);
  }

  .title {
    font-size: clamp(20px, 7.2vw, 25px);
  }
}

@media (max-width: 380px) {
  .brand-logo {
    width: 98px;
  }

  .title {
    font-size: 20px;
  }
}

@media print {
  body {
    background: #ffffff;
  }

  .topbar,
  aside {
    display: none;
  }

  .manual-shell {
    padding: 0;
  }

  .layout {
    display: block;
  }

  main {
    border: 0;
    padding: 0;
    box-shadow: none;
    background: #ffffff;
  }

  a {
    color: inherit;
  }
}