.page-faq {
  --faq-accent: var(--jb-lime);
  --faq-line: rgba(126, 148, 140, .22);
  --faq-soft: rgba(232, 242, 236, .78);
  padding-bottom: clamp(40px, 6vw, 76px);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(20px, 3.5vw, 36px);
  margin: clamp(16px, 3vw, 30px) 0 clamp(34px, 5vw, 58px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -12% -10% auto -10%;
  height: 340px;
  background:
    radial-gradient(58% 100% at 12% 0%, rgba(200, 255, 61, .13), transparent 70%),
    radial-gradient(52% 92% at 88% 8%, rgba(61, 224, 255, .11), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  font-family: var(--jb-font-display);
  font-size: clamp(28px, 5.6vw, 54px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--jb-ink);
  margin: 12px 0 16px;
}

.page-faq .faq-hero__lead {
  max-width: 620px;
  margin: 0 0 22px;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-hero__media {
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 两栏骨架：正文 + 目录 */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-toc {
  order: -1;
  min-width: 0;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--jb-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--jb-muted);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__item {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--jb-line);
  border-radius: var(--jb-pill);
  color: var(--faq-soft);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--jb-speed) var(--jb-ease), color var(--jb-speed) var(--jb-ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-color: var(--jb-lime);
  color: var(--jb-ink);
}

.page-faq .faq-toc__link .jb-num {
  color: var(--jb-muted);
  font-size: 11px;
  letter-spacing: .08em;
}

/* 章节与问题组 */
.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group--lime {
  --faq-accent: var(--jb-lime);
}

.page-faq .faq-group--orange {
  --faq-accent: var(--jb-orange);
}

.page-faq .faq-group--cyan {
  --faq-accent: var(--jb-cyan);
}

.page-faq .faq-group .jb-band {
  margin-bottom: clamp(12px, 2.2vw, 20px);
}

.page-faq .faq-list {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: start;
  padding: 17px 2px;
  list-style: none;
  cursor: pointer;
  color: var(--jb-ink);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  transition: color var(--jb-speed) var(--jb-ease);
}

.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__q::after {
  content: "+";
  justify-self: end;
  font-family: var(--jb-font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--faq-accent);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--faq-accent);
}

.page-faq .faq-item__no {
  padding-top: 4px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--jb-muted);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--faq-accent);
}

.page-faq .faq-item__a {
  position: relative;
  padding: 2px 2px 22px 50px;
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 4px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--faq-accent), transparent);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 680px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-item__a a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}

.page-faq .faq-item__a a:hover {
  border-bottom-style: solid;
}

/* 版本章节配图 */
.page-faq .faq-version__media {
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-version__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 收尾车票 */
.page-faq .faq-ticket {
  display: block;
  margin-top: clamp(28px, 5vw, 48px);
  text-decoration: none;
}

/* 桌面端 */
@media (min-width: 1000px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 216px;
    align-items: start;
  }

  .page-faq .faq-toc {
    order: 0;
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-toc__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-toc__item + .faq-toc__item {
    margin-top: 2px;
  }

  .page-faq .faq-toc__link {
    display: block;
    padding: 7px 0 7px 13px;
    border: 0;
    border-left: 2px solid var(--jb-line);
    border-radius: 0;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--jb-lime);
  }
}

@media (min-width: 1320px) {
  .page-faq .faq-hero__title {
    font-size: 58px;
  }
}

@media (max-width: 600px) {
  .page-faq .faq-item__q {
    grid-template-columns: 32px minmax(0, 1fr) 18px;
    gap: 8px;
  }

  .page-faq .faq-item__a {
    padding: 0 2px 20px 0;
  }

  .page-faq .faq-item__a::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q,
  .page-faq .faq-toc__link {
    transition: none;
  }
}