.page-faq {
  --faq-sticky-offset: 76px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  background: var(--c-cream);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-crumb .wrap {
  padding-top: 12px;
  padding-bottom: 12px;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-gray);
}

.page-faq .breadcrumb a {
  color: var(--c-deep);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-rust);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 42px 0 40px;
  background: linear-gradient(160deg, var(--c-deep) 0%, var(--c-night) 82%);
  color: var(--c-paper);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: auto;
  right: -12%;
  bottom: -46%;
  left: auto;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(214, 162, 74, 0.22), rgba(214, 162, 74, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  max-width: 17ch;
  color: var(--c-paper);
  font-size: 30px;
  line-height: 1.22;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  color: var(--c-gold);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero .lead {
  max-width: 58ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  line-height: 1.9;
}

.page-faq .faq-hero__panel {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(7, 26, 48, 0.62);
  padding: 18px;
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

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

.page-faq .faq-hero__map a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px;
  border-left: 3px solid rgba(214, 162, 74, 0.35);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--c-paper);
  font-size: 15px;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-hero__map a:hover,
.page-faq .faq-hero__map a:focus-visible {
  background: rgba(214, 162, 74, 0.16);
  border-left-color: var(--c-gold);
}

.page-faq .faq-hero__map .mono {
  flex: none;
  font-size: 12px;
  color: var(--c-gold);
}

/* ---------- 粘性分区索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--c-paper);
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 10px;
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-index__label {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-gray);
}

.page-faq .faq-index__tags {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__tags a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  color: var(--c-ink);
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__tags a:hover,
.page-faq .faq-index__tags a:focus-visible {
  border-color: var(--c-gold);
  background: var(--c-gold-soft);
  color: var(--c-ink);
}

/* ---------- 分区卡片 ---------- */
.page-faq .faq-zones-figure {
  margin: 20px 0 26px;
}

.page-faq .faq-zones {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-zone-card {
  display: flex;
}

.page-faq .faq-zone-card__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  padding: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-paper);
  color: inherit;
  text-decoration: none;
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.page-faq .faq-zone-card__link:hover,
.page-faq .faq-zone-card__link:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c-gold);
}

.page-faq .faq-zone-card__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-faq .faq-zone-card__title {
  margin: 0;
  font-size: 19px;
  color: var(--c-deep);
}

.page-faq .faq-zone-card__desc {
  margin: 0;
  color: var(--c-gray);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .faq-zone-card__more {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-rust);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-zone,
.page-faq .faq-zones-section {
  scroll-margin-top: var(--faq-sticky-offset);
}

.page-faq .faq-zone__intro {
  max-width: 62ch;
  margin: 0 0 24px;
  color: var(--c-gray);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-zone__outro {
  max-width: 66ch;
  margin: 22px 0 0;
  color: var(--c-gray);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-zone__outro a {
  color: var(--c-rust);
  text-underline-offset: 3px;
}

.page-faq .faq-doc-figure {
  margin: 0 0 28px;
}

.page-faq .faq-zone .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-faq .faq-item {
  position: relative;
  padding-left: 18px;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 20px;
  bottom: 20px;
  left: 0;
  width: 3px;
  border-radius: 2px;
  background: var(--c-line);
  transition: background 0.22s ease;
}

.page-faq .faq-item[open]::before {
  background: var(--c-gold);
}

.page-faq .faq-item > summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 38px 18px 0;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__num {
  flex: none;
  padding-top: 5px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-gold);
}

.page-faq .faq-item__q {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--c-ink);
}

.page-faq .faq-item__icon {
  position: absolute;
  top: 24px;
  right: 4px;
  width: 12px;
  height: 12px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--c-gray);
  transition: transform 0.22s ease, background 0.22s ease;
}

.page-faq .faq-item__icon::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  top: 0;
  left: 5px;
  width: 2px;
  height: 12px;
}

.page-faq .faq-item[open] .faq-item__icon::before {
  background: var(--c-gold);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-item__body {
  max-width: 68ch;
  padding: 0 30px 20px 0;
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  color: var(--c-gray);
  font-size: 15.5px;
  line-height: 1.9;
}

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

.page-faq .faq-item__body a {
  color: var(--c-rust);
  text-underline-offset: 3px;
}

/* ---------- 兼容表 ---------- */
.page-faq .spec-table th,
.page-faq .spec-table td {
  font-size: 14.5px;
}

/* ---------- 底部求助 ---------- */
.page-faq .faq-help {
  color: var(--c-paper);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-help__eyebrow {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-faq .faq-help h2 {
  margin: 0 0 16px;
  max-width: 22ch;
  color: var(--c-paper);
}

.page-faq .faq-help__text > p {
  max-width: 56ch;
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 15.5px;
  line-height: 1.9;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-help__card {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  padding: 22px;
}

.page-faq .faq-help__label {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-faq .faq-help__contact {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-faq .faq-help__contact > div {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.page-faq .faq-help__contact > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-help__contact dt {
  flex: none;
  width: 104px;
  color: var(--c-gold-soft);
  font-size: 13.5px;
}

.page-faq .faq-help__contact dd {
  margin: 0;
  color: var(--c-paper);
  font-size: 14.5px;
  word-break: break-all;
}

.page-faq .faq-help__note {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 58px 0 54px;
  }

  .page-faq .faq-hero h1 {
    font-size: 40px;
  }

  .page-faq .faq-zones {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-item__q {
    font-size: 17.5px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 60px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 56px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-zones {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-zone-card--s2 {
    grid-column: span 2;
  }

  .page-faq .faq-zone-card--s4 {
    grid-column: span 4;
  }

  .page-faq .faq-zones-figure {
    margin: 24px 0 30px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-zone-card__link,
  .page-faq .faq-hero__map a,
  .page-faq .faq-index__tags a,
  .page-faq .faq-item::before,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }

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