.page-faq {
  --faq-gold-line: #D4AF37;
  position: relative;
  padding: 2.5rem 0 4rem;
  background-image:
    linear-gradient(to right, rgba(11, 31, 58, .028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 31, 58, .028) 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-faq .breadcrumb {
  margin-bottom: 2rem;
}

/* ===== 首屏导语区 ===== */
.page-faq .faq-lead {
  margin-bottom: 1.75rem;
}

.page-faq .faq-lead-copy {
  position: relative;
  padding: 1.5rem 0 .5rem;
  border-top: 4px solid var(--c-gold);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1.25rem;
  padding: .3rem .7rem;
  background: var(--c-dark);
  color: var(--c-white);
  font-family: var(--f-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-faq .faq-kicker .status-dot {
  background: var(--c-gold);
}

.page-faq .faq-lead-copy h1 {
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: 2rem;
  line-height: 1.25;
  letter-spacing: .01em;
  color: var(--c-dark);
  margin: 0 0 1rem;
  max-width: 15em;
}

.page-faq .faq-lead-desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text2);
  max-width: 60ch;
  margin: 0 0 1.5rem;
}

.page-faq .faq-lead-info {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-lead-info span {
  font-family: var(--f-mono);
  font-size: .8rem;
  color: var(--c-deep);
  background: var(--c-white);
  border: 1px solid var(--c-border);
  padding: .35rem .7rem;
}

.page-faq .faq-lead-info span::before {
  content: "● ";
  color: var(--c-gold);
}

.page-faq .faq-lead-visual {
  margin-top: 1.5rem;
}

.page-faq .faq-lead-visual .media-frame,
.page-faq .faq-inline-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--c-border);
}

.page-faq .faq-lead-visual img,
.page-faq .faq-inline-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media-caption {
  display: block;
  padding: .5rem .75rem;
  font-family: var(--f-mono);
  font-size: .78rem;
  color: var(--c-text2);
  background: var(--c-white);
}

/* ===== 筛选栏 ===== */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: .5rem;
  overflow-x: auto;
  padding: .25rem 0 1.25rem;
  margin-bottom: 1.5rem;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .45rem 1rem;
  border: 1px solid var(--c-border);
  background: var(--c-white);
  color: var(--c-text2);
  font-family: var(--f-sans);
  font-size: .875rem;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}

.page-faq .filter-btn em {
  font-style: normal;
  font-family: var(--f-mono);
  font-size: .72rem;
  color: var(--c-deep);
}

.page-faq .filter-btn:hover {
  border-color: var(--c-deep);
  color: var(--c-deep);
}

.page-faq .filter-btn.is-active {
  background: var(--c-dark);
  border-color: var(--c-dark);
  color: var(--c-gold);
}

.page-faq .filter-btn.is-active em {
  color: var(--c-white);
}

/* ===== 双栏布局 ===== */
.page-faq .faq-layout {
  display: block;
}

.page-faq .faq-toc {
  margin-bottom: 2rem;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-top: 4px solid var(--c-gold);
  padding: 1.25rem;
}

.page-faq .faq-toc-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}

.page-faq .faq-toc-title {
  font-weight: 800;
  font-size: .95rem;
  color: var(--c-dark);
  letter-spacing: .04em;
}

.page-faq .faq-toc-meta {
  font-family: var(--f-mono);
  font-size: .72rem;
  color: var(--c-gold);
}

.page-faq .faq-toc-list {
  display: grid;
  gap: .25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc-link {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .55rem .6rem;
  text-decoration: none;
  color: var(--c-text2);
  border-left: 2px solid var(--c-border);
  transition: all var(--t-fast) var(--ease);
}

.page-faq .faq-toc-link:hover {
  color: var(--c-dark);
  border-left-color: var(--c-gold);
  background: var(--c-light);
}

.page-faq .faq-toc-num {
  font-family: var(--f-mono);
  font-size: .86rem;
  font-weight: 600;
  color: var(--c-deep);
}

.page-faq .faq-toc-text {
  font-size: .9rem;
  font-weight: 600;
}

.page-faq .faq-toc-foot {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--c-border);
}

/* ===== 主区 ===== */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-section {
  margin-bottom: 3rem;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-faq .section-heading {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-faq .section-index {
  font-family: var(--f-mono);
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  color: var(--c-gold);
  letter-spacing: -.04em;
  min-width: 3.2rem;
}

.page-faq .section-heading-copy {
  padding-top: .3rem;
}

.page-faq .section-title {
  margin: 0 0 .25rem;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--c-dark);
  letter-spacing: .01em;
}

.page-faq .section-desc {
  margin: 0;
  font-size: .875rem;
  color: var(--c-text2);
  line-height: 1.5;
}

/* ===== 问答卡片与折叠项 ===== */
.page-faq .faq-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-soft);
}

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

.page-faq .faq-item:last-child {
  border-bottom: none;
}

.page-faq .faq-question {
  position: relative;
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem .9rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--t-fast) var(--ease);
}

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

.page-faq .faq-question:hover {
  background: var(--c-light);
}

.page-faq .faq-question::after {
  content: "";
  position: absolute;
  left: .9rem;
  right: .9rem;
  bottom: 0;
  height: 2px;
  background: var(--faq-gold-line);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .24s var(--ease);
}

.page-faq .faq-item[open] .faq-question::after {
  transform: scaleX(1);
}

.page-faq .faq-q-no {
  font-family: var(--f-mono);
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-dark);
  background: rgba(212, 175, 55, .14);
  padding: .2rem .45rem;
  letter-spacing: .04em;
  flex: 0 0 auto;
}

.page-faq .faq-q-title {
  flex: 1 1 auto;
  font-size: .96rem;
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.4;
}

.page-faq .faq-q-toggle {
  flex: 0 0 auto;
  color: var(--c-text2);
  transition: transform var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] .faq-q-toggle {
  transform: rotate(45deg);
  color: var(--c-gold);
}

.page-faq .faq-answer {
  padding: 1rem 3.2rem 1.25rem 2.1rem;
  background: var(--c-light);
  border-left: 3px solid var(--c-gold);
  font-size: .9rem;
  line-height: 1.72;
  color: var(--c-text);
}

.page-faq .faq-answer p {
  margin: 0 0 .6rem;
}

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

.page-faq .faq-answer-link {
  font-size: .82rem;
  color: var(--c-text2);
}

.page-faq .faq-answer a {
  color: var(--c-deep);
  text-decoration: underline;
  text-decoration-color: var(--c-gold);
  text-underline-offset: 3px;
}

/* ===== 内联配图 ===== */
.page-faq .faq-inline-media {
  margin-top: 1rem;
}

/* ===== 支持块 ===== */
.page-faq .faq-support {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--c-dark);
  color: var(--c-white);
  border-right: 6px solid var(--c-gold);
}

.page-faq .faq-support-mark {
  width: 44px;
  height: 44px;
  background: var(--c-red);
  color: var(--c-white);
  font-family: var(--f-mono);
  font-weight: 800;
  font-size: 1.4rem;
  display: grid;
  place-items: center;
  transform: skewX(-6deg);
}

.page-faq .faq-support-copy h2 {
  font-size: 1.15rem;
  font-weight: 900;
  margin: 0 0 .5rem;
}

.page-faq .faq-support-copy p {
  margin: 0 0 .3rem;
  font-size: .875rem;
  color: rgba(255, 255, 255, .78);
  line-height: 1.6;
}

.page-faq .faq-support-copy a {
  color: var(--c-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-support .btn-primary {
  align-self: flex-start;
}

/* ===== 桌面端布局升级 ===== */
@media (min-width: 768px) {
  .page-faq .faq-lead {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 320px);
    gap: 2rem;
    align-items: center;
  }

  .page-faq .faq-lead-visual {
    margin-top: 0;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
    margin-bottom: 0;
  }

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

  .page-faq .faq-support {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .faq-support .btn-primary {
    align-self: center;
    flex: 0 0 auto;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-lead-copy h1 {
    font-size: 2.6rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 240px 1fr;
    gap: 2.75rem;
  }

  .page-faq .faq-support-copy {
    flex: 1;
  }
}