/* 長いQ&A記事の「章と質問へ移動」パネル（articlePresentation.faqJump）。生成は scripts/build-article-page.mjs の renderFaqJump */
.faq-jump-toggle {
  position: fixed;
  right: max(12px, env(safe-area-inset-right));
  bottom: calc(max(12px, env(safe-area-inset-bottom)) + 54px);
  z-index: 89;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  max-width: calc(100vw - 24px);
  padding: 8px 16px;
  border: 1px solid var(--signal, #0b63ce);
  border-radius: 999px;
  background: var(--signal, #0b63ce);
  color: #ffffff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(6, 19, 31, 0.18);
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.faq-jump.is-visible .faq-jump-toggle,
.faq-jump.is-open .faq-jump-toggle { opacity: 1; transform: none; pointer-events: auto; }
.faq-jump-toggle:focus-visible { outline: 2px solid var(--ink, #06131f); outline-offset: 3px; }
.faq-jump-current {
  overflow: hidden;
  max-width: 11em;
  font-weight: 500;
  white-space: nowrap;
  text-overflow: ellipsis;
  opacity: .9;
}
.faq-jump-current:empty { display: none; }

.faq-jump-panel {
  position: fixed;
  right: max(12px, env(safe-area-inset-right));
  bottom: calc(max(12px, env(safe-area-inset-bottom)) + 108px);
  z-index: 91;
  display: flex;
  flex-direction: column;
  width: min(420px, calc(100vw - 24px));
  max-height: min(70vh, 640px);
  border: 1px solid var(--line, rgba(6, 19, 31, 0.14));
  border-radius: 14px;
  background: var(--paper, #ffffff);
  color: var(--ink, #06131f);
  box-shadow: 0 18px 48px rgba(6, 19, 31, 0.22);
  overflow: hidden;
}
.faq-jump-panel[hidden] { display: none; }
.faq-jump-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 8px 18px;
  font-size: 15px;
}
.faq-jump-close {
  min-width: 44px;
  min-height: 44px;
  border: 0;
  background: none;
  color: var(--muted, #5a6875);
  font: inherit;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.faq-jump-search { display: block; padding: 0 18px; font-size: 12.5px; color: var(--muted, #5a6875); }
.faq-jump-search span { display: block; margin-bottom: 4px; }
.faq-jump-search input {
  width: 100%;
  min-height: 40px;
  padding: 6px 10px;
  border: 1px solid var(--line, rgba(6, 19, 31, 0.2));
  border-radius: 8px;
  background: var(--paper, #ffffff);
  color: var(--ink, #06131f);
  font: inherit;
  font-size: 16px;
}
.faq-jump-search input:focus-visible,
.faq-jump-panel a:focus-visible,
.faq-jump-close:focus-visible { outline: 2px solid var(--signal, #0b63ce); outline-offset: 2px; }
.faq-jump-status { margin: 6px 18px 0; font-size: 12.5px; color: var(--muted, #5a6875); }
.faq-jump-status:empty { display: none; }
.faq-jump-chapters {
  flex: 1;
  margin: 8px 0 0;
  padding: 0 10px 8px;
  overflow: auto;
  overscroll-behavior: contain;
  list-style: none;
}
.faq-jump-chapter { border-top: 1px solid var(--line, rgba(6, 19, 31, 0.1)); }
.faq-jump-chapter:first-child { border-top: 0; }
.faq-jump-chapter summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.45;
}
.faq-jump-chapter summary::marker { color: var(--signal, #0b63ce); }
.faq-jump-chapter summary a { flex: 1; color: inherit; font-weight: 700; text-decoration: none; }
.faq-jump-chapter.is-current summary a { color: var(--signal, #0b63ce); }
.faq-jump-count { flex-shrink: 0; font-size: 12px; color: var(--muted, #5a6875); }
.faq-jump-questions { margin: 0 0 8px; padding: 0; list-style: none; }
.faq-jump-questions a {
  display: flex;
  gap: 8px;
  padding: 6px 8px 6px 24px;
  border-radius: 6px;
  color: var(--ink, #06131f);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
}
.faq-jump-questions a:hover { background: color-mix(in srgb, var(--signal, #0b63ce) 8%, transparent); }
.faq-jump-questions b {
  flex-shrink: 0;
  min-width: 2.2em;
  color: var(--signal, #0b63ce);
  font-variant-numeric: tabular-nums;
}
.faq-jump-questions li[hidden], .faq-jump-chapter[hidden] { display: none; }
.faq-jump-top { margin: 0; padding: 10px 18px 14px; border-top: 1px solid var(--line, rgba(6, 19, 31, 0.1)); font-size: 13px; }
.faq-jump-top a { color: var(--signal, #0b63ce); }

.article-faq > h2,
.faq-item[id] { scroll-margin-top: 16px; }
.faq-item[id]:target { outline: 3px solid color-mix(in srgb, var(--signal, #0b63ce) 35%, transparent); outline-offset: 4px; }

@media (max-width: 640px) {
  .faq-jump-panel {
    right: 0;
    left: 0;
    bottom: 0;
    width: auto;
    max-height: 78vh;
    padding-bottom: env(safe-area-inset-bottom);
    border-radius: 16px 16px 0 0;
  }
  .faq-jump.is-open .faq-jump-toggle { opacity: 0; pointer-events: none; }
}

@media (prefers-reduced-motion: reduce) {
  .faq-jump-toggle { transition: none; }
}