.page-faq {
  background-color: var(--ink-800);
  background-image: linear-gradient(180deg, rgba(5, 13, 26, 0.72) 0%, rgba(11, 27, 51, 0) 420px);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
}

/* ============ 首屏 ============ */
.page-faq .faq-masthead {
  position: relative;
  padding: 42px 0 34px;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 96px;
  height: 2px;
  background-color: var(--amber);
}

.page-faq .faq-masthead__label {
  margin: 22px 0 0;
  color: var(--sand);
}

.page-faq .faq-masthead__title {
  margin: 10px 0 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(34px, 8vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-masthead__lede {
  margin: 0;
  max-width: 44ch;
  font-size: 16px;
  color: var(--haze);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-dark-soft);
  list-style: none;
}

.page-faq .faq-stats li {
  font-size: 13px;
  color: var(--haze);
  letter-spacing: 0.02em;
}

.page-faq .faq-stats .numeric {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--amber);
}

/* ============ 布局 ============ */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 38px;
  padding-bottom: 66px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 218px minmax(0, 1fr);
    gap: 54px;
  }
}

/* ============ 类别标签窄栏 ============ */
.page-faq .faq-index {
  align-self: start;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  color: var(--sand);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

@media (min-width: 960px) {
  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 13px;
  border: 1px solid var(--line-dark);
  color: var(--haze);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--ease-fast), border-color var(--ease-fast), background-color var(--ease-fast);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
  background-color: rgba(230, 138, 46, 0.08);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sand);
}

/* ============ 类别区块 ============ */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-block {
  padding: 34px 0 38px;
  border-top: 1px solid var(--line-dark-soft);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-block__note {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .faq-inline-link {
  color: var(--sand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link:hover {
  color: var(--amber);
}

/* ============ 配图 ============ */
.page-faq .faq-figure {
  margin: 0 0 22px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.94);
}

.page-faq .faq-figure--wide img {
  aspect-ratio: 12 / 7;
}

.page-faq .faq-figure__cap {
  margin-top: 9px;
  padding-left: 11px;
  border-left: 2px solid var(--sand-deep);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--haze);
}

/* ============ 问答折叠 ============ */
.page-faq .faq-list {
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-dark);
  transition: background-color 220ms cubic-bezier(0.22, 0.61, 0.36, 1), border-color 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.page-faq .faq-item[open] {
  background-color: var(--paper);
  border-bottom-color: var(--amber);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin: 0;
  padding: 17px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  transition: color var(--ease-fast);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

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

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

.page-faq .faq-item[open] > .faq-item__q {
  color: var(--paper-ink);
}

.page-faq .faq-item[open] > .faq-item__q:hover {
  color: var(--goji);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  color: var(--sand);
  transition: color var(--ease-fast);
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background-color: currentColor;
}

.page-faq .faq-item__icon::before {
  left: 0;
  right: 0;
  top: 7.5px;
  height: 1px;
}

.page-faq .faq-item__icon::after {
  top: 0;
  bottom: 0;
  left: 7.5px;
  width: 1px;
  transition: transform var(--ease-fast);
}

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

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 16px 20px;
  color: var(--paper-ink);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-item__a a {
  color: var(--goji);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--ink-700);
}

/* ============ 页面底部咨询条 ============ */
.page-faq .faq-ask {
  border-top: 1px solid var(--line-dark);
  background-color: var(--ink-900);
  padding: 42px 0 50px;
}

.page-faq .faq-ask__inner {
  display: grid;
  gap: 26px;
  padding-left: 22px;
  border-left: 3px solid var(--amber);
}

@media (min-width: 880px) {
  .page-faq .faq-ask__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: 52px;
    padding: 8px 0 8px 32px;
    margin-left: 6%;
  }
}

.page-faq .faq-ask__label {
  margin: 0 0 10px;
  color: var(--sand);
}

.page-faq .faq-ask__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 4.6vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-ask__text {
  margin: 0 0 14px;
  max-width: 52ch;
  font-size: 15px;
  color: var(--haze);
}

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

.page-faq .faq-ask__link {
  display: inline-block;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--amber);
  padding-bottom: 2px;
  transition: color var(--ease-fast);
}

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

.page-faq .faq-ask__list {
  display: grid;
  gap: 16px;
  align-self: start;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-ask__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq .faq-ask__val {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ============ 动效克制 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__icon,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-index__link,
  .page-faq .faq-ask__link {
    transition: none;
  }
}