.page-faq {
  --faq-ink-soft: rgba(36, 28, 21, .7);
  --faq-hair: rgba(36, 28, 21, .13);
  --faq-pad: clamp(16px, 3vw, 26px);
  --faq-gap: clamp(32px, 5vw, 62px);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-faq .wrap {
  width: 100%;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(34px, 6vw, 68px);
  background:
    radial-gradient(120% 96% at 92% -14%, rgba(30, 78, 140, .16), transparent 62%),
    radial-gradient(86% 74% at -10% 24%, rgba(200, 162, 74, .18), transparent 62%),
    var(--cream);
  border-bottom: 1px solid var(--faq-hair);
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 42px);
  font-size: 13px;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--royal-mid);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--gold-dim);
  text-decoration: underline;
}

.page-faq .faq-hero__inner {
  max-width: 46rem;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--royal-deep);
}

.page-faq .faq-hero .lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 40rem;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.2vw, 34px);
}

/* ---------- 索引路径 ---------- */
.page-faq .faq-route {
  padding: var(--faq-gap) 0;
}

.page-faq .faq-route__head {
  max-width: 44rem;
}

.page-faq .faq-route__head h2 {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.3;
  color: var(--royal-deep);
}

.page-faq .faq-route__head p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-route__figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
}

.page-faq .faq-route__figure .figure__media {
  border-radius: var(--radius-panel);
  border: 1px solid var(--faq-hair);
  overflow: hidden;
  background: var(--mist);
}

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

.page-faq .faq-route__figure .figure__caption,
.page-faq .faq-split__figure .figure__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--gold-dim);
}

.page-faq .faq-route__nodes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-node {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--paper);
  border: 1px solid var(--faq-hair);
  border-top: 3px solid var(--royal-mid);
  border-radius: var(--radius-soft);
  text-decoration: none;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.page-faq .faq-node:hover,
.page-faq .faq-node:focus-visible {
  transform: translateY(-3px);
  border-top-color: var(--gold);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-node__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold-dim);
}

.page-faq .faq-node__name {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--royal-deep);
}

.page-faq .faq-node__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-ink-soft);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-gap) 0;
  border-top: 3px solid var(--moss);
  scroll-margin-top: 150px;
}

.page-faq .faq-group__head {
  max-width: 46rem;
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-group__no {
  display: inline-block;
  padding: 4px 13px;
  border: 1px solid var(--line-gold);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold-dim);
}

.page-faq .faq-group__head h2 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.3;
  color: var(--royal-deep);
}

.page-faq .faq-group__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-gold);
}

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

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px var(--faq-pad) 20px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--royal-deep);
  transition: color .2s ease, background-color .2s ease;
}

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

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--royal-mid);
  background: rgba(220, 230, 241, .4);
  outline: none;
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--gold);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--gold-dim);
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold-dim);
}

.page-faq .faq-item__a {
  padding: 2px var(--faq-pad) 22px calc(var(--faq-pad) + 30px);
  background: linear-gradient(180deg, rgba(220, 230, 241, .62), rgba(220, 230, 241, .24));
  border-radius: 0 0 var(--radius-soft) var(--radius-soft);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-item__a p + p {
  margin-top: 10px;
}

/* ---------- 安装分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

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

.page-faq .faq-split__figure .figure__media {
  border-radius: var(--radius-panel);
  border: 1px solid var(--faq-hair);
  overflow: hidden;
  background: var(--mist);
}

/* ---------- 联系区 ---------- */
.page-faq .faq-contact {
  padding: clamp(44px, 7vw, 88px) 0;
  background: var(--moss);
  color: var(--cream);
  scroll-margin-top: 150px;
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-contact__intro h2 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.3;
  color: var(--cream);
}

.page-faq .faq-contact__intro p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 241, 231, .82);
}

.page-faq .faq-contact__intro .btn {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px 20px;
  background: rgba(246, 241, 231, .06);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .faq-contact__v {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: .02em;
  color: var(--cream);
  text-decoration: none;
  word-break: break-word;
}

.page-faq .faq-contact__v:hover,
.page-faq .faq-contact__v:focus-visible {
  color: var(--gold);
  text-decoration: underline;
}

.page-faq .faq-contact__n {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(246, 241, 231, .7);
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 14px;
}

.page-faq .faq-contact__links a {
  color: rgba(246, 241, 231, .92);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 162, 74, .5);
}

.page-faq .faq-contact__links a:hover,
.page-faq .faq-contact__links a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-split__figure {
    position: sticky;
    top: 150px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (max-width: 759px) {
  .page-faq .faq-route__nodes {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-node {
    flex-direction: row;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 4px 12px;
  }

  .page-faq .faq-node__desc {
    flex-basis: 100%;
  }

  .page-faq .faq-item > summary {
    padding-right: 4px;
    gap: 10px;
  }

  .page-faq .faq-item__a {
    padding-left: var(--faq-pad);
  }

  .page-faq .faq-route__figure .figure__media,
  .page-faq .faq-split__figure .figure__media {
    border-radius: var(--radius-soft);
  }
}

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

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