/* ========== 常见问题页 /faq/ ========== */
.page-faq {
  --faq-hair: 1px solid var(--silver-200);
  --faq-indent: 44px;
}

/* ---------- 面包屑位置 ---------- */
.page-faq .faq-crumbs {
  margin-bottom: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-bottom: 36px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 34px;
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 72px;
    align-items: center;
  }
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--ink-600);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--signal);
}

.page-faq .faq-kicker .num {
  font-family: var(--font-num);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal-ink);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(29px, 5.2vw, 47px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--ink-950);
}

.page-faq .faq-hero__text {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-600);
}

.page-faq .faq-hero__text .num {
  font-family: var(--font-num);
  font-weight: 600;
  color: var(--ink-950);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 26px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 6px 13px;
  border: var(--faq-hair);
  border-radius: 999px;
  background: var(--paper-200);
  font-size: 13px;
  color: var(--ink-600);
  white-space: nowrap;
}

.page-faq .faq-chip .num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 14px;
  color: var(--signal-ink);
}

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

.page-faq .faq-hero__art .figure__img,
.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 分类锚点条 ---------- */
.page-faq .faq-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 15;
  background: var(--paper-200);
  border-top: var(--faq-hair);
  border-bottom: var(--faq-hair);
}

.page-faq .faq-nav__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-nav__cell {
  flex: 0 0 auto;
}

.page-faq .faq-nav__item {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 16px;
  border: 1px solid var(--silver-200);
  background: var(--paper-100);
  color: var(--ink-950);
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .faq-nav__item:hover,
.page-faq .faq-nav__item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--signal);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-nav__no {
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--signal-ink);
}

.page-faq .faq-nav__label {
  font-size: 14.5px;
  font-weight: 600;
}

.page-faq .faq-nav__hint {
  font-size: 12px;
  color: var(--silver-400);
}

/* ---------- 分组 ---------- */
.page-faq .faq-body {
  padding-top: 10px;
}

.page-faq .faq-group {
  padding: 40px 0 14px;
  scroll-margin-top: calc(var(--header-h) + 82px);
}

.page-faq .faq-group + .faq-group {
  margin-top: 18px;
  border-top: var(--faq-hair);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-group__no {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 26px;
  border: 1px solid var(--signal);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--signal-ink);
}

.page-faq .faq-group__title {
  margin: 0 0 7px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.25;
  letter-spacing: -0.008em;
  color: var(--ink-950);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-600);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-bottom: var(--faq-hair);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  outline-offset: 3px;
}

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

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

.page-faq .faq-q__no {
  flex: 0 0 auto;
  min-width: 26px;
  padding-top: 2px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--silver-400);
  transition: color 0.18s ease;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-950);
  transition: color 0.18s ease;
}

.page-faq .faq-q__text .num {
  font-family: var(--font-num);
  font-weight: 700;
}

.page-faq .faq-q__chev {
  flex: 0 0 auto;
  align-self: center;
  width: 9px;
  height: 9px;
  margin-right: 4px;
  border-right: 1.5px solid var(--silver-400);
  border-bottom: 1.5px solid var(--silver-400);
  transform: rotate(45deg);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.page-faq .faq-q:hover .faq-q__text,
.page-faq .faq-q:hover .faq-q__no,
.page-faq .faq-item[open] > .faq-q .faq-q__text,
.page-faq .faq-item[open] > .faq-q .faq-q__no {
  color: var(--signal-ink);
}

.page-faq .faq-item[open] > .faq-q .faq-q__chev {
  transform: rotate(-135deg);
  border-color: var(--signal);
}

/* ---------- 答案 ---------- */
.page-faq .faq-a {
  padding: 0 2px 22px;
}

@media (min-width: 720px) {
  .page-faq .faq-a {
    padding-left: var(--faq-indent);
  }
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-600);
}

.page-faq .faq-a p:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-a .num {
  font-family: var(--font-num);
  font-weight: 600;
  color: var(--ink-950);
}

.page-faq .faq-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding-bottom: 1px;
  border-bottom: 1px solid currentColor;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--signal-ink);
  text-decoration: none;
  transition: color 0.18s ease;
}

.page-faq .faq-more span {
  display: inline-block;
  transition: transform 0.18s ease;
}

.page-faq .faq-more:hover {
  color: var(--ink-950);
}

.page-faq .faq-more:hover span {
  transform: translateX(3px);
}

/* ---------- 内嵌图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 26px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--silver-400);
}

/* ---------- 收尾条 ---------- */
.page-faq .faq-tail {
  margin-top: 46px;
  padding: 34px 0 40px;
  border-top: var(--faq-hair);
  background: var(--paper-200);
}

.page-faq .faq-tail__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 30px;
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-600);
}

.page-faq .faq-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 宽屏双栏问答 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-group__items {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-q {
    padding-right: 24px;
  }

  .page-faq .faq-a {
    padding-left: 0;
    margin-left: calc(var(--faq-indent) + 26px);
    max-width: 76ch;
    padding-right: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-nav__item,
  .page-faq .faq-q__chev,
  .page-faq .faq-q__text,
  .page-faq .faq-q__no,
  .page-faq .faq-more,
  .page-faq .faq-more span {
    transition: none;
  }

  .page-faq .faq-nav__item:hover,
  .page-faq .faq-nav__item:focus-visible {
    transform: none;
  }
}