.page-faq {
  --faq-line: rgba(0, 229, 192, 0.24);
  --faq-panel: rgba(20, 26, 34, 0.9);
  --faq-space: clamp(44px, 8vw, 96px);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1100px 520px at 84% -8%, rgba(0, 229, 192, 0.12), transparent 62%),
    radial-gradient(880px 440px at 4% 34%, rgba(255, 122, 26, 0.07), transparent 60%);
  color: var(--white);
  padding-bottom: var(--faq-space);
}

.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.page-faq [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* 面包屑 */
.page-faq .faq-crumb {
  padding-top: 20px;
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  padding-top: 14px;
  padding-bottom: var(--faq-space);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(29px, 7vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-hero__facts .mono {
  font-size: 18px;
  color: var(--orange);
  flex: none;
}

.page-faq .faq-hero__media {
  margin: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: 52px;
    padding-top: 26px;
  }

  .page-faq .faq-hero__media {
    margin-bottom: -6px;
  }
}

/* 分类跳转胶囊 */
.page-faq .faq-body {
  padding-top: 10px;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 34px;
}

.page-faq .faq-jump__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: rgba(18, 48, 58, 0.42);
  color: var(--white);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-jump__chip .mono {
  font-size: 12px;
  color: var(--cyan);
  transition: color 0.2s ease;
}

.page-faq .faq-jump__chip:hover,
.page-faq .faq-jump__chip:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-faq .faq-jump__chip:hover .mono,
.page-faq .faq-jump__chip:focus-visible .mono {
  color: var(--ink-900);
}

/* 主体布局 */
.page-faq .faq-layout {
  display: block;
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

/* 迷你目录 */
.page-faq .faq-toc {
  display: none;
}

@media (min-width: 1000px) {
  .page-faq .faq-toc {
    display: block;
    position: sticky;
    top: calc(var(--belt-h) + 28px);
  }
}

.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: block;
  padding: 9px 0 9px 14px;
  border-left: 2px solid var(--ink-700);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-faq .faq-toc__hint {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ink-700);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* 分组 */
.page-faq .faq-group {
  padding-bottom: clamp(34px, 6vw, 62px);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .faq-group__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* 问答折叠条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 18px 38px 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1.55;
  color: var(--white);
  transition: color 0.2s ease;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan-soft);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-item__idx {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

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

@media (min-width: 620px) {
  .page-faq .faq-item__a {
    padding-left: 46px;
  }
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

/* 正文内链 */
.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* 组内配图 */
.page-faq .faq-figure {
  margin: 24px 0 0;
}

/* 联络收尾 */
.page-faq .faq-help {
  margin-top: clamp(24px, 4vw, 48px);
  border-top: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(18, 48, 58, 0.6), rgba(11, 14, 18, 0) 78%);
}

.page-faq .faq-help__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 74px) 20px clamp(44px, 7vw, 82px);
}

.page-faq .faq-help__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-faq .faq-help__lead {
  margin: 16px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

@media (min-width: 760px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-help__item {
  padding: 22px 20px;
  border: 1px solid var(--ink-700);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--faq-panel);
}

.page-faq .faq-help__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-help__value {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-help__more {
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--ink-700);
  display: grid;
  gap: 12px;
}

@media (min-width: 760px) {
  .page-faq .faq-help__more {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-faq .faq-help__more li {
  font-size: 14px;
  line-height: 1.7;
}
</main>