.page-faq {
  --faq-line: rgba(30, 74, 110, .55);
  --faq-line-soft: rgba(30, 74, 110, .34);
  --faq-panel: rgba(18, 42, 68, .58);
  --faq-cyan-soft: rgba(56, 224, 208, .26);
  padding-bottom: 88px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  position: relative;
  padding-top: 26px;
  background:
    radial-gradient(1100px 300px at 16% -12%, rgba(56, 224, 208, .10), transparent 72%),
    radial-gradient(880px 260px at 90% -6%, rgba(91, 75, 224, .10), transparent 74%);
}

.page-faq .faq-intro .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-intro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-intro__lead h1 {
  margin: 16px 0 18px;
  font-size: clamp(1.95rem, 5.2vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .06em;
  color: var(--snow);
  max-width: 22ch;
}

.page-faq .faq-intro__lead .lede {
  max-width: 56ch;
  color: var(--frost);
  font-size: .98rem;
  line-height: 1.85;
  margin: 0;
}

.page-faq .faq-quick {
  padding: 20px 20px 14px;
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-quick__list li + li {
  border-top: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-quick__list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 13px 0;
  color: var(--snow);
  text-decoration: none;
  font-size: .92rem;
  line-height: 1.6;
  transition: color .2s ease;
}

.page-faq .faq-quick__list a span {
  color: var(--frost);
  font-size: .76rem;
  letter-spacing: .1em;
}

.page-faq .faq-quick__list a:hover,
.page-faq .faq-quick__list a:focus-visible {
  color: var(--cyan);
}

/* ---------- 分组刻度标签 ---------- */
.page-faq .faq-index {
  margin-top: 40px;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(11, 26, 43, .92), rgba(6, 16, 25, .92));
}

.page-faq .faq-tabs {
  display: flex;
  gap: 2px;
  padding: 0;
  margin: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-tabs .tab {
  position: relative;
  flex: 0 0 auto;
  appearance: none;
  background: none;
  border: 0;
  margin: 0;
  padding: 20px 18px 24px;
  font-family: var(--font-sans);
  font-size: .94rem;
  letter-spacing: .04em;
  color: var(--frost);
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s ease;
}

.page-faq .faq-tabs .tab::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .24s ease;
}

.page-faq .faq-tabs .tab:hover {
  color: var(--snow);
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  color: var(--snow);
}

.page-faq .faq-tabs .tab[aria-selected="true"]::after {
  transform: scaleX(1);
}

.page-faq .faq-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

/* ---------- 刻度带主图 ---------- */
.page-faq .faq-scale {
  margin: 30px 0 0;
  aspect-ratio: 14 / 5;
  overflow: hidden;
}

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

/* ---------- 面板与分组 ---------- */
.page-faq .faq-panels {
  padding-top: 4px;
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: 44px 0 64px;
  scroll-margin-top: 120px;
}

.page-faq .faq-group__head h2 {
  margin: 14px 0 14px;
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: .04em;
  color: var(--snow);
}

.page-faq .faq-group__head > p:last-child {
  margin: 0;
  color: var(--frost);
  font-size: .93rem;
  line-height: 1.85;
  max-width: 42ch;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item details {
  position: relative;
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 40px 20px 0;
  cursor: pointer;
  list-style: none;
  color: var(--snow);
  transition: color .2s ease;
}

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

.page-faq .faq-item summary:hover {
  color: var(--cyan);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 27px;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .22s ease, top .22s ease;
}

.page-faq .faq-item details[open] summary::after {
  transform: rotate(-135deg);
  top: 31px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 3.6em;
  padding-top: 3px;
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-item__q {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.7;
}

.page-faq .faq-item__a {
  margin: 0 0 24px 1.1em;
  padding: 0 30px 0 20px;
  border-left: 1px solid var(--faq-cyan-soft);
}

.page-faq .faq-item__a p {
  margin: 0 0 14px;
  color: var(--frost);
  font-size: .92rem;
  line-height: 1.85;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a strong {
  color: var(--snow);
  font-weight: 600;
}

/* ---------- 步骤与要点卡 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(18, 42, 68, .6);
  border: 1px solid var(--faq-line-soft);
  clip-path: var(--cut-sm);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--snow);
}

.page-faq .faq-step__no {
  flex: 0 0 auto;
  min-width: 1.5em;
  padding-top: 2px;
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 步骤配图 ---------- */
.page-faq .faq-steps-figure {
  margin: 0 0 28px;
  max-width: 430px;
  width: 100%;
  aspect-ratio: 9 / 7;
  overflow: hidden;
}

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

/* ---------- 指向更详细页面的箭头块 ---------- */
.page-faq .faq-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 26px;
  padding: 17px 22px;
  clip-path: var(--cut-sm);
  background: linear-gradient(90deg, rgba(30, 74, 110, .34), rgba(18, 42, 68, .12));
  color: var(--snow);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.6;
  transition: background .22s ease, color .22s ease;
}

.page-faq .faq-more::after {
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  border-top: 1.5px solid var(--gold);
  border-right: 1.5px solid var(--gold);
  transform: rotate(45deg);
  transition: transform .22s ease;
}

.page-faq .faq-more:hover,
.page-faq .faq-more:focus-visible {
  background: linear-gradient(90deg, rgba(56, 224, 208, .18), rgba(18, 42, 68, .14));
  color: var(--cyan);
}

.page-faq .faq-more:hover::after {
  transform: translateX(4px) rotate(45deg);
}

/* ---------- 结尾协助面板 ---------- */
.page-faq .faq-outro {
  padding: 0 0 12px;
}

.page-faq .faq-outro__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 30px 26px;
  border-color: var(--gold);
  background:
    linear-gradient(120deg, rgba(242, 179, 61, .09), rgba(18, 42, 68, .5) 62%);
}

.page-faq .faq-outro__text h2 {
  margin: 14px 0 12px;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: .04em;
  color: var(--snow);
}

.page-faq .faq-outro__text p {
  margin: 0;
  color: var(--frost);
  font-size: .92rem;
  line-height: 1.85;
  max-width: 56ch;
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: flex-start;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-intro {
    padding-top: 40px;
  }

  .page-faq .faq-item__a {
    padding-right: 48px;
    padding-left: 24px;
  }

  .page-faq .faq-outro__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    padding: 34px 32px;
  }
}

/* ---------- 桌面双栏 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-group {
    grid-template-columns: minmax(0, 3.4fr) minmax(0, 8fr);
    gap: 60px;
    padding: 60px 0 76px;
  }

  .page-faq .faq-tabs .tab {
    padding: 22px 26px 26px;
    font-size: .96rem;
  }
}

/* ---------- 窄屏收紧 ---------- */
@media (max-width: 699px) {
  .page-faq .faq-tabs .tab {
    padding: 16px 14px 20px;
    font-size: .86rem;
  }

  .page-faq .faq-group {
    padding: 32px 0 52px;
  }

  .page-faq .faq-item summary {
    gap: 10px;
    padding-right: 32px;
  }

  .page-faq .faq-item__no {
    min-width: 2.6em;
  }

  .page-faq .faq-item__a {
    margin-left: .7em;
    padding-right: 16px;
    padding-left: 15px;
  }

  .page-faq .faq-steps li {
    padding: 11px 13px;
  }

  .page-faq .faq-more {
    padding: 15px 16px;
    font-size: .86rem;
  }

  .page-faq .faq-outro__panel {
    padding: 24px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs .tab::after,
  .page-faq .faq-item summary::after,
  .page-faq .faq-more::after,
  .page-faq .faq-quick__list a {
    transition: none;
  }
}