.page-faq {
  --faq-gap: clamp(22px, 3.4vw, 56px);
  padding-bottom: clamp(56px, 8vw, 118px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(28px, 4vw, 56px) 0 clamp(32px, 4.4vw, 62px);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -12% -12% 0 -12%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 72% at 16% 0%, rgba(77, 240, 140, .12), transparent 64%),
    radial-gradient(52% 66% at 90% 6%, rgba(255, 107, 61, .11), transparent 68%),
    linear-gradient(180deg, rgba(20, 54, 94, .48), transparent 78%);
}

.page-faq .faq-hero__tag {
  margin: 0 0 14px;
  color: var(--c-neon-soft);
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  max-width: 44ch;
  margin: clamp(16px, 2.2vw, 28px) 0 0 auto;
  color: var(--c-ice);
  font-size: clamp(16px, 1.5vw, 17px);
  line-height: 1.78;
}

/* ---------- 问题索引带 ---------- */
.page-faq .faq-map {
  padding: clamp(22px, 3vw, 34px) 0 clamp(6px, 1vw, 12px);
}

.page-faq .faq-map__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-map__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 48px;
  padding: 13px 14px;
  background: var(--c-stand);
  color: var(--c-ice);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              box-shadow var(--t-fast) var(--ease);
}

.page-faq .faq-map__link:hover {
  background: var(--c-rail);
  color: var(--c-neon-soft);
  box-shadow: inset 2px 0 0 0 var(--c-neon);
}

.page-faq .faq-map__link:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: -2px;
}

.page-faq .faq-map__num {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-neon);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: clamp(44px, 6vw, 84px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 12px;
  padding-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid var(--c-line-2);
}

.page-faq .faq-group__head .index-tag {
  color: var(--c-neon-soft);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  max-width: 24ch;
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 46ch;
  color: var(--c-mist);
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 问答条目：移动端单列手风琴 ---------- */
.page-faq .faq-qa {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(15px, 2vw, 21px) 0 10px;
  list-style: none;
  cursor: pointer;
  color: var(--c-ice);
  font-size: clamp(16.5px, 1.5vw, 19px);
  font-weight: 500;
  line-height: 1.55;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-qa > summary::before {
  content: "";
  flex: 0 0 3px;
  align-self: stretch;
  min-height: 22px;
  border-radius: 2px;
  background: var(--c-rail);
  transition: background var(--t-fast) var(--ease);
}

.page-faq .faq-qa[open] > summary::before {
  background: var(--c-neon);
}

.page-faq .faq-qa > summary:hover {
  color: var(--c-neon-soft);
}

.page-faq .faq-qa > summary:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-faq .faq-qa__a {
  padding: 0 0 18px 15px;
  max-width: 46ch;
  color: var(--c-mist);
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-qa__a ul {
  margin: 2px 0 0;
  padding-left: 18px;
}

.page-faq .faq-qa__a li {
  margin-bottom: 6px;
}

.page-faq .faq-qa__a li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-qa__a li::marker {
  color: var(--c-neon);
}

.page-faq .faq-qa__a a {
  color: var(--c-neon-soft);
  text-decoration: underline;
  text-decoration-color: var(--c-line-neon);
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-qa__a a:hover {
  color: var(--c-neon);
}

.page-faq .faq-qa__a .num {
  color: var(--c-amber);
  font-size: 15px;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(18px, 2.6vw, 32px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-stand);
}

.page-faq .faq-figure .figure__cap {
  margin-top: 10px;
  color: var(--c-mist);
  font-size: 13px;
  line-height: 1.65;
}

/* ---------- 下一步面板 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
  margin-top: clamp(20px, 2.6vw, 30px);
  padding: clamp(20px, 2.8vw, 34px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(142deg, rgba(20, 54, 94, .58), rgba(11, 31, 56, .94) 64%);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-next__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  color: var(--c-ice);
  font-size: 15.5px;
  line-height: 1.7;
}

.page-faq .faq-next__list .num {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-amber);
}

.page-faq .faq-next__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-map__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__lede {
    margin-left: auto;
  }

  .page-faq .faq-qa {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-qa > summary {
    grid-column: 1;
    grid-row: 1;
    padding: clamp(19px, 2vw, 24px) 0;
  }

  .page-faq .faq-qa__a {
    grid-column: 2;
    grid-row: 1;
    padding: clamp(22px, 2.2vw, 26px) 0 clamp(20px, 2vw, 24px);
    max-width: 50ch;
  }

  .page-faq .faq-next {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-map__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-map__link,
  .page-faq .faq-qa > summary,
  .page-faq .faq-qa > summary::before,
  .page-faq .faq-qa__a a {
    transition: none;
  }
}