.dgt-plugin-shell {
  --dgt-ink: #202124;
  --dgt-muted: #5f6368;
  --dgt-line: #dadce0;
  --dgt-surface: #ffffff;
  --dgt-soft: #f8f5ef;
  --dgt-accent: #8a1f3d;
  --dgt-accent-2: #0f766e;
  --dgt-warn: #b45309;
  color: var(--dgt-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  font-style: normal;
}

.dgt-guide {
  max-width: 980px;
  margin: 0 auto;
  line-height: 1.78;
  font-size: 16px;
}

.dgt-guide * {
  box-sizing: border-box;
  font-family: inherit;
  font-style: normal;
}

.dgt-guide a {
  color: var(--dgt-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.dgt-guide a:hover,
.dgt-guide a:focus {
  color: #5c1430;
}

.dgt-guide h1 {
  margin: 0 0 18px;
  padding: 0 0 12px;
  border-bottom: 3px solid var(--dgt-accent);
  color: var(--dgt-ink);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.22;
  letter-spacing: 0;
}

.dgt-guide h2 {
  margin: 44px 0 18px;
  padding: 10px 16px;
  border-left: 6px solid var(--dgt-accent);
  background: var(--dgt-soft);
  color: var(--dgt-ink);
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: 0;
}

.dgt-guide h3 {
  margin: 34px 0 16px;
  padding: 0 0 8px;
  border-bottom: 1px solid var(--dgt-line);
  color: var(--dgt-ink);
  font-size: 21px;
  line-height: 1.42;
  letter-spacing: 0;
  scroll-margin-top: 24px;
}

.dgt-guide p {
  margin: 0 0 12px;
}

.dgt-guide img {
  display: block;
  width: min(100%, 640px);
  height: auto;
  margin: 8px 0 20px;
  border: 1px solid var(--dgt-line);
  border-radius: 6px;
}

.dgt-area-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 980px;
  margin: 0 auto 22px;
  padding: 12px;
  border: 1px solid var(--dgt-line);
  background: #fff;
}

.dgt-area-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 13px;
  border: 1px solid var(--dgt-line);
  border-radius: 4px;
  color: var(--dgt-ink);
  text-decoration: none;
  background: #fff;
}

.dgt-area-nav a:hover,
.dgt-area-nav a:focus,
.dgt-area-nav a.is-current {
  border-color: var(--dgt-accent);
  color: #fff;
  background: var(--dgt-accent);
}

.dgt-intro {
  margin: 0 0 28px;
  padding: 20px;
  border: 1px solid var(--dgt-line);
  border-left: 6px solid var(--dgt-accent-2);
  background: #f7fbfa;
}

.dgt-intro h2 {
  margin-top: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 24px;
}

.dgt-intro h3 {
  margin-top: 24px;
  border-bottom: 0;
  color: var(--dgt-accent-2);
}

.dgt-intro ul,
.dgt-intro ol {
  margin: 10px 0 14px 1.25em;
  padding: 0;
}

.dgt-intro li {
  margin: 4px 0;
}

.dgt-intro code {
  padding: 2px 6px;
  border: 1px solid var(--dgt-line);
  border-radius: 4px;
  background: #fff;
  color: var(--dgt-ink);
  font-size: 0.95em;
}

.dgt-guide .intro,
.dgt-guide .toc {
  margin: 0 0 24px;
  padding: 20px 24px;
  border: 1px solid var(--dgt-line);
  border-left: 6px solid var(--dgt-accent);
  border-radius: 6px;
  background: var(--dgt-soft);
}

.dgt-guide .toc-title {
  margin-bottom: 18px;
  color: var(--dgt-accent);
  font-size: 1.22em;
  font-weight: 700;
}

.dgt-guide .toc-area-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 16px;
  padding: 0 0 14px;
  border-bottom: 1px dashed var(--dgt-line);
}

.dgt-guide .toc-area-chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 4px 11px;
  border: 1px solid var(--dgt-accent);
  border-radius: 4px;
  background: #fff;
  color: var(--dgt-accent);
  text-decoration: none;
}

.dgt-guide .toc-area-chip:hover,
.dgt-guide .toc-area-chip:focus {
  background: var(--dgt-accent);
  color: #fff;
}

.dgt-guide .toc-area-heading {
  margin: 20px 0 10px;
  padding: 4px 0 4px 12px;
  border-left: 4px solid var(--dgt-accent);
  color: var(--dgt-accent);
  font-size: 1.08em;
  font-weight: 700;
}

.dgt-guide .toc-area-heading .count {
  margin-left: 8px;
  color: #9aa0a6;
  font-weight: 500;
}

.dgt-guide .toc-entry-list {
  margin: 0 0 16px 20px;
  padding: 0;
  list-style: none;
}

.dgt-guide .toc-entry {
  margin: 0;
  padding: 3px 0;
  line-height: 1.55;
}

.dgt-guide .toc-entry a {
  color: #3f3f46;
  text-decoration: none;
}

.dgt-guide .toc-entry a:hover,
.dgt-guide .toc-entry a:focus {
  color: var(--dgt-accent);
  text-decoration: underline;
}

.dgt-guide .toc-entry .num {
  display: inline-flex;
  justify-content: center;
  min-width: 38px;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: 4px;
  background: var(--dgt-accent);
  color: #fff;
  font-size: 0.9em;
  font-weight: 700;
}

.dgt-guide .time-tag,
.dgt-guide .toc-entry .time-tag {
  color: var(--dgt-muted);
  font-size: 0.86em;
}

.dgt-course-entry {
  margin: 0 0 34px;
  padding: 0 0 24px;
  border-bottom: 1px solid var(--dgt-line);
}

.dgt-course-entry > h2 {
  margin-top: 38px;
}

.dgt-course-stage {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin: 0 0 14px;
  padding: 4px 10px;
  border: 1px solid var(--dgt-line);
  border-radius: 4px;
  background: #fff;
  color: var(--dgt-muted);
  font-size: 0.92em;
  line-height: 1.35;
}

.dgt-route-screenshot {
  margin: 10px 0 22px;
}

.dgt-route-screenshot img {
  width: min(100%, 860px);
  max-height: none;
  object-fit: contain;
  object-position: center;
  border: 1px solid var(--dgt-line);
  border-radius: 6px;
  background: #fff;
}

.dgt-route-screenshot figcaption {
  margin-top: 6px;
  color: var(--dgt-muted);
  font-size: 0.86em;
}

.dgt-route-missing {
  margin: 8px 0 18px;
  padding: 10px 12px;
  border: 1px dashed var(--dgt-line);
  border-radius: 4px;
  color: var(--dgt-muted);
  background: #fff;
}

.dgt-error {
  padding: 14px 16px;
  border-left: 5px solid var(--dgt-warn);
  background: #fff7ed;
  color: #7c2d12;
}

@media (max-width: 640px) {
  .dgt-guide {
    font-size: 15px;
  }

  .dgt-guide h1 {
    font-size: 28px;
  }

  .dgt-guide h2 {
    font-size: 21px;
  }

  .dgt-guide h3 {
    font-size: 18px;
  }

  .dgt-area-nav {
    padding: 10px;
  }

  .dgt-area-nav a {
    flex: 1 1 calc(50% - 8px);
    justify-content: center;
  }
}