.page-faq {
  --g: var(--summer);
  --faq-gap: 12px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 28px 0 44px;
  background:
    linear-gradient(180deg, rgba(33, 212, 253, .10), rgba(10, 27, 42, 0) 70%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  min-width: 0;
}

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

.page-faq .faq-hero__main .lead {
  margin: 18px 0 0;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__board {
  border: 2px solid var(--line);
  border-left: 6px solid var(--spring);
  background: var(--ink-2);
  box-shadow: var(--shadow);
  padding: 6px 0;
  min-width: 0;
}

.page-faq .faq-board__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-faq .faq-board__key {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rock);
}

.page-faq .faq-board__val {
  font-size: 15px;
  color: var(--silver);
  font-weight: 600;
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-nav {
  padding: 40px 0 8px;
}

.page-faq .faq-nav__head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .faq-nav__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--silver);
}

.page-faq .faq-nav__note {
  margin: 0;
  color: var(--rock);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-nav__rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 14px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-nav__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border: 2px solid var(--line);
  border-left: 6px solid var(--g);
  background: var(--ink-2);
  color: var(--silver);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: background .12s var(--ease), color .12s var(--ease), border-color .12s var(--ease);
}

.page-faq .faq-nav__item:hover,
.page-faq .faq-nav__item:focus-visible {
  background: var(--ink-3);
  border-color: var(--g);
  color: #fff;
}

.page-faq .faq-nav__item--spring { --g: var(--spring); }
.page-faq .faq-nav__item--summer { --g: var(--summer); }
.page-faq .faq-nav__item--autumn { --g: var(--autumn); }
.page-faq .faq-nav__item--winter { --g: var(--winter); }
.page-faq .faq-nav__item--moss { --g: var(--moss); }

.page-faq .faq-nav__num {
  font-size: 14px;
  color: var(--g);
  font-weight: 700;
}

.page-faq .faq-nav__label {
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-nav__count {
  font-size: 12px;
  color: var(--rock);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding: 46px 0 22px;
  border-top: 1px solid var(--line);
  position: relative;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(220px, 40%);
  height: 4px;
  background: var(--g);
}

.page-faq .faq-group--spring { --g: var(--spring); }
.page-faq .faq-group--summer { --g: var(--summer); }
.page-faq .faq-group--autumn { --g: var(--autumn); }
.page-faq .faq-group--winter { --g: var(--winter); }
.page-faq .faq-group--final { --g: var(--moss); }

.page-faq .faq-group__head {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-size: clamp(25px, 4.2vw, 40px);
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 10px 0 0;
  color: var(--silver);
}

.page-faq .faq-group__note {
  margin: 0;
  color: var(--rock);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-item {
  border: 2px solid var(--line);
  border-left: 6px solid var(--g);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  transition: border-color .14s var(--ease), background .14s var(--ease);
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow);
  background: var(--ink-3);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q:hover .faq-item__text {
  color: #fff;
}

.page-faq .faq-item__num {
  font-size: 13px;
  color: var(--g);
  font-weight: 700;
  letter-spacing: .04em;
}

.page-faq .faq-item__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--silver);
  transition: color .14s var(--ease);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 24px;
  height: 24px;
  border: 2px solid var(--g);
  flex: none;
}

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

.page-faq .faq-item__sign::before {
  width: 12px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 12px;
  transition: opacity .16s var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 16px 20px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  line-height: 1.9;
  color: var(--g);
  border-right: 1px solid var(--line-soft);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 6px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-sm);
  background: var(--ink-2);
}

.page-faq .faq-figure .img-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--rock);
  line-height: 1.7;
}

/* ---------- 联系与反馈 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 28px;
  padding: 26px 22px;
  color: var(--ink);
}

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

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-cta__text {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-cta__channels {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid rgba(10, 27, 42, .25);
}

.page-faq .faq-cta__channel {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(10, 27, 42, .16);
}

.page-faq .faq-cta__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--clay);
}

.page-faq .faq-cta__val {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-cta__side {
  border-top: 2px solid rgba(10, 27, 42, .25);
  padding-top: 18px;
}

.page-faq .faq-cta__side-title {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--ink);
}

.page-faq .faq-cta__tips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-cta__tips li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-cta__tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  background: var(--moss);
}

.page-faq .faq-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 40px 0 56px;
  }

  .page-faq .faq-cta {
    padding: 34px 30px;
  }

  .page-faq .faq-item__q {
    padding: 18px 20px;
  }

  .page-faq .faq-item__a {
    padding: 4px 20px 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 56px;
  }

  .page-faq .faq-nav {
    padding-top: 52px;
  }

  .page-faq .faq-nav__head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-group {
    padding: 64px 0 28px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 48px;
    margin-bottom: 34px;
  }

  .page-faq .faq-list {
    max-width: 900px;
  }

  .page-faq .faq-figure {
    max-width: 900px;
    margin: 34px 0 8px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 46px;
    padding: 44px 40px;
  }

  .page-faq .faq-cta__side {
    border-top: 0;
    border-left: 2px solid rgba(10, 27, 42, .25);
    padding-top: 0;
    padding-left: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__text,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-nav__item {
    transition: none;
  }
}