.page-faq {
  --faq-no: 3rem;
  --faq-gap: clamp(12px, 2vw, 22px);
  --faq-pad-x: clamp(8px, 1.4vw, 16px);
}

.page-faq figure {
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-cyan) 24%, var(--line-cyan) 76%, transparent);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(26px, 4.5vw, 56px);
  align-items: start;
}

.page-faq .faq-hero__lead h1 {
  font-family: var(--font-title);
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--paper-050);
  margin: .42em 0 0;
  max-width: 18ch;
}

.page-faq .faq-hero__lead .lead {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 46ch;
  color: var(--steel-300);
}

.page-faq .faq-jump {
  background: var(--space-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-jump__title {
  margin: 0 0 .7em;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--signal-cyan);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-jump__list a {
  display: flex;
  gap: .72em;
  align-items: baseline;
  padding: .58em .7em;
  border-radius: 10px;
  color: var(--steel-300);
  font-size: .94rem;
  line-height: 1.5;
  text-decoration: none;
  transition: background .18s var(--ease), color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .faq-jump__list a .num {
  font-size: .74rem;
  color: var(--signal-deep);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  background: var(--space-700);
  color: var(--paper-050);
}

.page-faq .faq-jump__list a.is-active {
  color: var(--signal-cyan);
  box-shadow: inset 3px 0 0 var(--signal-cyan);
  background: var(--space-700);
}

.page-faq .faq-jump__list a.is-active .num {
  color: var(--signal-cyan);
}

/* ---------- 通用分栏 ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-split__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-m);
  object-fit: cover;
}

.page-faq .faq-choice {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 1.8vw, 16px);
}

.page-faq .faq-choice li {
  display: grid;
  gap: .3em;
  padding: .1em 0 .1em 1rem;
  border-left: 2px solid var(--line-cyan);
}

.page-faq .faq-choice__key {
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--signal-cyan);
}

.page-faq .faq-choice__val {
  font-size: .95rem;
  line-height: 1.72;
  color: var(--steel-300);
}

.page-faq .faq-note {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--steel-300);
  opacity: .82;
  padding-left: 1rem;
  border-left: 1px dashed var(--line);
}

/* ---------- 分组 ---------- */

.page-faq .faq-group__head {
  max-width: 60ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-group__note {
  margin: .7em 0 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--steel-300);
}

/* ---------- 问答条目 ---------- */

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

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: var(--faq-no) minmax(0, 1fr) 14px;
  gap: var(--faq-gap);
  align-items: start;
  padding: clamp(14px, 2vw, 20px) var(--faq-pad-x);
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius-s);
  transition: background .18s var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  background: var(--space-800);
}

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

.page-faq .faq-item__no {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--signal-cyan);
  opacity: .8;
  padding-top: .3em;
}

.page-faq .faq-item__q {
  font-family: var(--font-title);
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--paper-050);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: .42em;
}

.page-faq .faq-item__mark::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 6px;
  height: 1.5px;
  background: var(--signal-cyan);
  transition: transform .24s var(--ease), opacity .24s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark::before {
  transform: rotate(90deg);
}

.page-faq .faq-item__body {
  padding: 0 var(--faq-pad-x) clamp(16px, 2.4vw, 24px);
  padding-left: calc(var(--faq-pad-x) + var(--faq-no) + var(--faq-gap));
  max-width: 68ch;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--steel-300);
}

.page-faq .faq-item__body p {
  margin: 0;
}

/* ---------- 排查图 ---------- */

.page-faq .faq-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-m);
  object-fit: cover;
}

/* ---------- 对照表 ---------- */

.page-faq .faq-table-scroll {
  overflow-x: auto;
  border-radius: var(--radius-m);
}

.page-faq .faq-table-scroll table {
  min-width: 640px;
}

.page-faq .faq-table-scroll caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--steel-300);
  padding-bottom: .8em;
}

.page-faq .faq-after {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--steel-300);
}

.page-faq .faq-after a {
  color: var(--signal-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 1px;
}

.page-faq .faq-after a:hover,
.page-faq .faq-after a:focus-visible {
  color: var(--paper-050);
  border-bottom-color: var(--paper-050);
}

/* ---------- 地区 ---------- */

.page-faq .faq-regions {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.4vw, 22px);
}

.page-faq .faq-two .panel h3 {
  margin: .55em 0 .4em;
  font-family: var(--font-title);
  font-size: 1.05rem;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--paper-050);
}

.page-faq .faq-two .panel p:last-child {
  margin: 0;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--steel-300);
}

.page-faq .panel__tag {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--signal-cyan);
}

/* ---------- 检索技巧 ---------- */

.page-faq .faq-tips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-tips li {
  display: grid;
  grid-template-columns: var(--faq-no) minmax(0, 1fr);
  gap: var(--faq-gap);
  padding: clamp(16px, 2.4vw, 24px) var(--faq-pad-x);
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.page-faq .faq-tips__no {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--signal-cyan);
  opacity: .8;
  padding-top: .3em;
}

.page-faq .faq-tips__body h3 {
  margin: 0 0 .35em;
  font-family: var(--font-title);
  font-size: 1.02rem;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--paper-050);
}

.page-faq .faq-tips__body p {
  margin: 0;
  max-width: 62ch;
  font-size: .93rem;
  line-height: 1.78;
  color: var(--steel-300);
}

/* ---------- 结尾引导 ---------- */

.page-faq .faq-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(18px, 3vw, 36px);
  align-items: center;
  padding: clamp(22px, 3.4vw, 38px);
  border-radius: var(--radius-l);
  border: 1px solid var(--line-warm);
  background: linear-gradient(120deg, var(--space-800), var(--space-700) 78%);
}

.page-faq .faq-cta__text .prose {
  margin: .7em 0 0;
  max-width: 56ch;
  color: var(--steel-300);
  font-size: .95rem;
  line-height: 1.78;
}

.page-faq .faq-cta .btn {
  white-space: nowrap;
}

.page-faq .faq-tail__line {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--steel-300);
  max-width: 72ch;
}

.page-faq .faq-tail__line a {
  color: var(--signal-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-faq .faq-tail__line a:hover,
.page-faq .faq-tail__line a:focus-visible {
  color: var(--paper-050);
  border-bottom-color: var(--paper-050);
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero__lead h1 {
    max-width: 24ch;
  }
}

@media (max-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-split__media {
    order: -1;
  }

  .page-faq .faq-two {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .page-faq .faq-cta .btn {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .page-faq {
    --faq-no: 2.1rem;
    --faq-gap: 10px;
    --faq-pad-x: 6px;
  }

  .page-faq .faq-item__q {
    font-size: .99rem;
  }

  .page-faq .faq-item__body,
  .page-faq .faq-tips__body p {
    font-size: .92rem;
  }

  .page-faq .faq-jump {
    padding: 14px 12px;
  }

  .page-faq .faq-jump__list a {
    padding: .5em .55em;
    font-size: .9rem;
  }
}

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