.page-faq {
  --faq-border: 1.5px solid var(--ink);
  --faq-pad: clamp(18px, 3.6vw, 44px);
  --faq-gap: clamp(20px, 3vw, 40px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(18px, 3vw, 34px);
  background:
    radial-gradient(120% 92% at 100% 0%, rgba(228, 87, 46, .14), transparent 62%),
    linear-gradient(180deg, var(--sand) 0%, var(--paper) 56%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  padding-bottom: clamp(24px, 3.6vw, 46px);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
  }
}

.page-faq .faq-hero__copy .breadcrumbs {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero h1 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.2vw, 52px);
  line-height: 1.18;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-faq .faq-hero__lede {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 20px 0 0;
}

.page-faq .faq-hero__meta-text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--white);
  border: var(--faq-border);
  box-shadow: var(--plate-shadow);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  right: -1.5px;
  bottom: -1.5px;
  width: 46px;
  height: 46px;
  background: var(--sun);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

/* 三步引导 */
.page-faq .faq-steps {
  border-top: var(--faq-border);
  background: var(--lake);
  color: var(--paper);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: clamp(22px, 3.2vw, 36px) 0;
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
}

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

.page-faq .faq-step {
  padding-left: 16px;
  border-left: 2px solid var(--copper);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--sun);
}

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(247, 244, 236, .82);
}

/* 分类快速跳转 */
.page-faq .faq-jump {
  border-block: var(--faq-border);
  background: var(--paper);
}

.page-faq .faq-jump__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding-block: 14px;
}

.page-faq .faq-jump__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
}

.page-faq .faq-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-jump__list a {
  display: inline-block;
  padding: 6px 13px;
  background: var(--white);
  border: 1px solid var(--copper);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  background: var(--lake);
  border-color: var(--lake);
  color: var(--paper);
}

/* 区块框架 */
.page-faq .faq-block {
  padding-block: clamp(38px, 6vw, 76px);
  border-bottom: var(--faq-border);
}

.page-faq .faq-block--tint {
  background: linear-gradient(180deg, var(--paper) 0%, #F1EADA 100%);
}

.page-faq .faq-block--sand {
  background: var(--sand);
}

.page-faq .faq-block__head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-block__head .section-title {
  margin: 8px 0 0;
  color: var(--ink);
}

.page-faq .faq-block__lede {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

/* 问答折叠 */
.page-faq .faq-qa {
  display: grid;
  gap: 14px;
}

@media (min-width: 900px) {
  .page-faq .faq-qa--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-item {
  background: var(--white);
  border: var(--faq-border);
  box-shadow: var(--plate-shadow);
}

.page-faq .faq-item > summary {
  position: relative;
  padding: 15px 46px 15px 16px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: background .18s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:hover {
  background: rgba(233, 223, 201, .55);
}

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--sun);
}

.page-faq .faq-item[open] > summary {
  background: var(--sand);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--clay);
}

.page-faq .faq-item__idx {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lake-mid);
}

.page-faq .faq-item__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--copper);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

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

.page-faq .faq-item__body a:hover {
  color: var(--lake);
}

/* 移动端分栏 */
.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 4vw, 56px);
  }
}

.page-faq .faq-split__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--white);
  border: var(--faq-border);
  box-shadow: var(--plate-shadow);
}

.page-faq .faq-split__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.page-faq .faq-split__figure .media-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

.page-faq .faq-split__body .faq-block__head {
  max-width: none;
}

/* 版本区块 */
.page-faq .faq-version {
  display: grid;
  gap: var(--faq-gap);
}

@media (min-width: 940px) {
  .page-faq .faq-version {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 60px);
  }
}

.page-faq .faq-version__aside .section-title {
  margin: 8px 0 0;
}

.page-faq .faq-track {
  position: relative;
  list-style: none;
  margin: 22px 0 24px;
  padding: 0 0 0 22px;
  border-left: 2px solid var(--sand);
}

.page-faq .faq-track__item {
  position: relative;
  padding-bottom: 18px;
}

.page-faq .faq-track__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-track__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sun);
  box-shadow: 0 0 0 3px var(--paper);
}

.page-faq .faq-track__date {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--copper);
}

.page-faq .faq-track__text {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

/* 六个分类总览 */
.page-faq .faq-cats {
  display: grid;
  gap: 14px;
}

@media (min-width: 760px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-cat {
  background: var(--white);
  border: var(--faq-border);
  box-shadow: var(--plate-shadow);
}

.page-faq .faq-cat > summary {
  position: relative;
  padding: 16px 44px 16px 16px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .04em;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: background .18s var(--ease);
}

.page-faq .faq-cat > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-cat > summary:hover,
.page-faq .faq-cat[open] > summary {
  background: var(--sand);
}

.page-faq .faq-cat > summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.4;
  color: var(--sun);
}

.page-faq .faq-cat[open] > summary::after {
  content: "–";
  color: var(--clay);
}

.page-faq .faq-cat__num {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lake-mid);
}

.page-faq .faq-cat__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--copper);
}

.page-faq .faq-cat__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-cat__body ul {
  margin: 0;
  padding-left: 18px;
  list-style: square;
}

.page-faq .faq-cat__body li {
  margin-bottom: 6px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-cat__body li::marker {
  color: var(--sun);
}

.page-faq .faq-cats__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--slate);
}

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

.page-faq .faq-cats__foot a:hover {
  color: var(--lake);
}

/* 窄屏收尾 */
@media (max-width: 619px) {
  .page-faq .faq-hero__figure,
  .page-faq .faq-split__figure {
    padding: 7px;
  }

  .page-faq .faq-item > summary {
    font-size: 15.5px;
    padding-right: 42px;
  }

  .page-faq .faq-jump__list a {
    padding: 6px 10px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__list a,
  .page-faq .faq-item > summary,
  .page-faq .faq-cat > summary {
    transition: none;
  }
}