.page-faq {
  --faq-edge: 2px solid var(--ink-deep);
  --faq-hair: 1px solid var(--paper-2);
  --faq-row: var(--paper-2);
  --faq-gap: clamp(20px, 4vw, 40px);
  background: var(--paper);
  color: var(--ink);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: clamp(18px, 3.5vw, 36px) 0 clamp(24px, 4vw, 46px);
}
.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: end;
}
.page-faq h1 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(31px, 5.4vw, 60px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ink-deep);
  margin: 12px 0 0;
}
.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ridge);
}

/* 关键词输入 */
.page-faq .faq-search {
  margin-top: clamp(20px, 3vw, 28px);
  max-width: 560px;
}
.page-faq .faq-search__label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-faq .faq-search__box {
  display: flex;
  align-items: stretch;
  border: var(--faq-edge);
  background: var(--snow);
  box-shadow: var(--hard-sm);
}
.page-faq .faq-search__box:focus-within {
  box-shadow: 0 0 0 3px rgba(181, 52, 42, 0.3), var(--hard-sm);
}
.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
}
.page-faq .faq-search__input:focus {
  outline: none;
}
.page-faq .faq-search__input::placeholder {
  color: var(--mist);
}
.page-faq .faq-search__count {
  display: flex;
  align-items: center;
  padding: 0 14px;
  border-left: var(--faq-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cinnabar);
  white-space: nowrap;
}

/* 首屏配图 */
.page-faq .faq-hero__fig {
  position: relative;
  margin: 0;
  border: var(--faq-edge);
  box-shadow: var(--hard);
  background: var(--snow);
}
.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.78);
}
.page-faq .faq-hero__fig .media-frame__tag {
  position: absolute;
  left: -2px;
  bottom: -2px;
  padding: 6px 10px;
  background: var(--ink);
  color: var(--paper);
  font-size: 11px;
  letter-spacing: 0.12em;
}

/* 分类条 */
.page-faq .faq-jump {
  border-top: var(--faq-hair);
  border-bottom: var(--faq-hair);
  background: var(--paper);
}
.page-faq .faq-jump__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-jump__list li {
  flex: 0 0 auto;
}
.page-faq .faq-jump__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 15px clamp(14px, 2.4vw, 22px);
  border-right: var(--faq-hair);
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-faq .faq-jump__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.06em;
}
.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  background: var(--ink);
  color: var(--snow);
  outline: none;
}

/* 问答分区 */
.page-faq .faq-block {
  padding: clamp(36px, 5.5vw, 72px) 0;
  scroll-margin-top: calc(var(--header-h) + 56px);
}
.page-faq .faq-block--tint {
  --faq-row: rgba(30, 58, 60, 0.16);
  background: var(--paper-2);
}
.page-faq .faq-block__grid {
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-block__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  color: var(--gold);
}
.page-faq .faq-block__side h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(23px, 3vw, 30px);
  line-height: 1.34;
  color: var(--ink-deep);
}
.page-faq .faq-block__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--ridge);
  max-width: 34ch;
}
.page-faq .faq-block__fig {
  margin: clamp(18px, 3vw, 26px) 0 0;
  border: var(--faq-edge);
  box-shadow: var(--hard-sm);
  background: var(--snow);
}
.page-faq .faq-block__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.75);
}
.page-faq .faq-block__fig figcaption {
  padding: 8px 10px;
  border-top: var(--faq-hair);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ridge);
}

/* 手风琴 */
.page-faq .faq-block__list {
  counter-reset: faqitem;
  border-top: var(--faq-edge);
}
.page-faq .faq-item {
  counter-increment: faqitem;
  position: relative;
  padding-left: 14px;
  border-bottom: 1px solid var(--faq-row);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  background: var(--cinnabar);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--dur) var(--ease);
}
.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}
.page-faq .faq-item > summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 40px 17px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-deep);
}
.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item > summary::before {
  content: counter(faqitem, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 15px;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink-deep);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--ink);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-faq .faq-item[open] > summary::after {
  content: "−";
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--snow);
}
.page-faq .faq-item > summary:hover::after {
  background: var(--ink);
  color: var(--snow);
}
.page-faq .faq-item[open] > summary:hover::after {
  background: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}
.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 4px;
}
.page-faq .faq-item__a {
  padding: 0 0 20px clamp(0px, 2vw, 26px);
}
.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__a ul {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-item__a li {
  position: relative;
  margin-bottom: 8px;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
}
.page-faq .faq-item__a li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--gold);
}
.page-faq .faq-item__a a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-item__a p.faq-item__src {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 1px solid var(--gold);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

/* 联系客服收尾 */
.page-faq .faq-help {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(40px, 6vw, 80px) 0 clamp(44px, 6vw, 84px);
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.page-faq .faq-help__grid {
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-help .eyebrow {
  color: var(--gold);
}
.page-faq .faq-help h2 {
  margin: 10px 0 16px;
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.28;
  color: var(--snow);
}
.page-faq .faq-help p {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 246, 242, 0.84);
}
.page-faq .faq-help .btn--primary {
  margin-top: 8px;
}
.page-faq .faq-help__card {
  border: 2px solid rgba(244, 246, 242, 0.42);
  padding: clamp(18px, 3vw, 28px);
}
.page-faq .faq-help__card dl {
  margin: 0;
}
.page-faq .faq-help__card dt {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.page-faq .faq-help__card dt:first-of-type {
  margin-top: 0;
}
.page-faq .faq-help__card dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 17px);
  line-height: 1.5;
  color: var(--snow);
  word-break: break-word;
}
.page-faq .faq-help__card dd.faq-help__mail {
  user-select: all;
}
.page-faq .faq-help__card dd.faq-help__time {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--lotus);
}
.page-faq .faq-help__card .faq-help__note {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(244, 246, 242, 0.62);
  max-width: none;
}

/* 断点 */
@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-faq .faq-hero__fig {
    max-width: 640px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-faq .faq-hero__fig {
    max-width: none;
  }
  .page-faq .faq-jump {
    position: sticky;
    top: var(--header-h);
    z-index: 5;
  }
  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
  .page-faq .faq-block__side {
    position: sticky;
    top: calc(var(--header-h) + 72px);
  }
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

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