.page-faq {
  --faq-line: rgba(15, 36, 56, .13);
  --faq-line-soft: rgba(15, 36, 56, .07);
  --faq-text-soft: rgba(11, 20, 32, .68);
  background: var(--paper);
  color: var(--ink-black);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding-block: 22px 0;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--faq-text-soft);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(15, 36, 56, .28);
}

.page-faq .breadcrumb a {
  color: var(--celadon-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .24s var(--ease-out);
}

.page-faq .breadcrumb a:hover {
  border-bottom-color: var(--celadon-deep);
}

.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background:
    radial-gradient(115% 90% at 92% 4%, rgba(255, 122, 51, .13), transparent 56%),
    radial-gradient(95% 85% at 2% 100%, rgba(31, 95, 81, .15), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--paper) 100%);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px dashed rgba(15, 36, 56, .09);
  border-radius: 2px;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__lead .kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--celadon-deep);
}

.page-faq .faq-hero__lead h1 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(30px, 7.4vw, 62px);
  line-height: 1.15;
  letter-spacing: .01em;
  color: var(--ink-deep);
}

.page-faq .faq-hero__lead .lede {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-text-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .72);
  box-shadow: var(--shadow-1);
  transition: transform .3s var(--ease-out), border-color .3s var(--ease-out);
}

.page-faq .faq-card:first-child {
  grid-column: 1 / -1;
}

.page-faq .faq-card:hover {
  transform: translateY(-2px);
  border-color: var(--faq-line);
}

.page-faq .faq-card--hot {
  background:
    linear-gradient(140deg, rgba(255, 122, 51, .12), rgba(255, 122, 51, 0) 62%),
    rgba(255, 255, 255, .8);
  border-color: rgba(255, 122, 51, .3);
}

.page-faq .faq-card__label {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--faq-text-soft);
}

.page-faq .faq-card__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 6vw, 38px);
  font-weight: 500;
  line-height: 1.05;
  color: var(--ink-deep);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-card--hot .faq-card__num {
  color: var(--flare);
}

.page-faq .faq-card__unit {
  margin-left: 4px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  color: var(--faq-text-soft);
}

.page-faq .faq-card__foot {
  font-size: 12px;
  line-height: 1.6;
  color: rgba(11, 20, 32, .5);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-block: 40px 76px;
}

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

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  margin-bottom: 30px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-filter__chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-filter__chips::-webkit-scrollbar {
  display: none;
}

.page-faq .chip {
  flex: 0 0 auto;
  padding: 8px 15px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-deep);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background .26s var(--ease-out), color .26s var(--ease-out), border-color .26s var(--ease-out);
}

.page-faq .chip:hover {
  border-color: var(--celadon-light);
}

.page-faq .chip[aria-pressed="true"] {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
  color: var(--paper);
}

.page-faq .filter-bar__status {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: rgba(11, 20, 32, .45);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-bottom: 38px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-group__no {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--celadon-deep);
}

.page-faq .faq-group__title {
  grid-column: 1;
  grid-row: 2;
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(23px, 5.2vw, 33px);
  line-height: 1.28;
  color: var(--ink-deep);
}

.page-faq .faq-group__note {
  grid-column: 1;
  grid-row: 3;
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

.page-faq .faq-group:target .faq-group__title {
  color: var(--celadon-deep);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  position: relative;
  margin-bottom: 8px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .55);
  transition: background .3s var(--ease-out), border-color .3s var(--ease-out);
}

.page-faq .faq-q::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: var(--celadon-light);
  opacity: 0;
  transition: opacity .3s var(--ease-out);
}

.page-faq .faq-q:hover {
  border-color: var(--faq-line);
}

.page-faq .faq-q[open] {
  border-color: var(--faq-line);
  background: var(--mist);
}

.page-faq .faq-q[open]::before {
  opacity: 1;
}

.page-faq .faq-q__ask {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(16.5px, 2.5vw, 20px);
  line-height: 1.55;
  color: var(--ink-deep);
}

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

.page-faq .faq-q__ask:focus-visible {
  outline: 2px solid var(--celadon-light);
  outline-offset: 2px;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 6px;
  border: 1px solid var(--faq-line);
  border-radius: 50%;
  transition: border-color .28s var(--ease-out);
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-deep);
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__mark::before {
  width: 9px;
  height: 1px;
}

.page-faq .faq-q__mark::after {
  width: 1px;
  height: 9px;
  transition: transform .28s var(--ease-out);
}

.page-faq .faq-q[open] .faq-q__mark {
  border-color: var(--celadon-deep);
}

.page-faq .faq-q[open] .faq-q__mark::before {
  background: var(--celadon-deep);
}

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-q__panel {
  padding: 14px 18px 20px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 14.5px;
  line-height: 1.88;
  color: rgba(11, 20, 32, .82);
}

.page-faq .faq-q__panel p {
  margin: 0;
}

.page-faq .faq-q__panel p + p {
  margin-top: 10px;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(11, 20, 32, .5);
}

.page-faq .faq-figure--pause {
  margin: 0 0 40px;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--faq-line-soft);
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-help__panel {
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--faq-line);
  border-left: 2px solid var(--celadon-deep);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(31, 95, 81, .1), transparent 58%),
    rgba(255, 255, 255, .7);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-help__panel > p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--faq-text-soft);
}

.page-faq .faq-help__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-help__label {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--celadon-deep);
}

.page-faq .faq-help__value {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-deep);
  word-break: break-word;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 侧栏索引 ---------- */
.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--celadon-deep);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--faq-line);
}

.page-faq .faq-index__list a {
  position: relative;
  display: block;
  padding: 9px 10px 9px 16px;
  font-size: 13.5px;
  line-height: 1.55;
  color: rgba(11, 20, 32, .62);
  text-decoration: none;
  transition: color .24s var(--ease-out), background .24s var(--ease-out);
}

.page-faq .faq-index__list a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--flare);
  transform: translateY(-50%);
  transition: height .28s var(--ease-out);
}

.page-faq .faq-index__list a:hover {
  color: var(--ink-deep);
  background: var(--mist);
}

.page-faq .faq-index__list a:hover::before {
  height: 62%;
}

.page-faq .faq-index__note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(11, 20, 32, .5);
}

.page-faq .faq-index__note a {
  color: var(--celadon-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 95, 81, .35);
}

.page-faq .faq-index__note a:hover {
  border-bottom-color: var(--celadon-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-group__head {
    grid-template-columns: 58px minmax(0, 1fr);
    column-gap: 14px;
    row-gap: 6px;
  }

  .page-faq .faq-group__no {
    grid-column: 1;
    grid-row: 1 / span 2;
    padding-top: 9px;
  }

  .page-faq .faq-group__title {
    grid-column: 2;
    grid-row: 1;
  }

  .page-faq .faq-group__note {
    grid-column: 2;
    grid-row: 2;
  }

  .page-faq .faq-hero__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-card:first-child {
    grid-column: auto;
  }

  .page-faq .faq-help__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-block: 30px 0;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.38fr minmax(0, .82fr);
    align-items: end;
    gap: 44px;
  }

  .page-faq .faq-hero__cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .page-faq .faq-card:first-child {
    grid-column: auto;
  }

  .page-faq .faq-layout {
    padding-block: 56px 96px;
  }

  .page-faq .faq-q__ask {
    padding: 20px 22px;
  }

  .page-faq .faq-q__panel {
    padding: 16px 22px 22px;
    font-size: 15px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 226px;
    column-gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-figure--pause {
    margin-bottom: 48px;
    padding-bottom: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .chip,
  .page-faq .faq-q,
  .page-faq .faq-q__mark,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-q::before,
  .page-faq .faq-index__list a,
  .page-faq .faq-index__list a::before {
    transition: none;
  }

  .page-faq .faq-card:hover {
    transform: none;
  }
}