.page-faq {
  --faq-sidebar-w: 280px;
  --faq-gap: 40px;
  --faq-link-hover: #0088CC;
  background: var(--bg);
  color: var(--paper);
}

/* ===== Hero 横幅 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 52px;
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  filter: saturate(.75);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(11, 11, 16, .78) 0%, rgba(11, 11, 16, .5) 55%, var(--bg) 100%);
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumbs {
  margin-bottom: 24px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--silver);
}

.page-faq .breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--silver);
  opacity: .5;
}

.page-faq .breadcrumb-link {
  color: var(--electric);
  text-decoration: none;
  transition: color .2s ease;
}

.page-faq .breadcrumb-link:hover {
  color: var(--volt);
}

.page-faq .page-title-block {
  max-width: 760px;
}

.page-faq .kicker {
  margin: 0 0 10px;
  color: var(--volt);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.page-faq .display-title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.6vw, 52px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--paper);
}

.page-faq .display-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--electric), var(--volt));
}

.page-faq .page-caption {
  margin: 0;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.65;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 28px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .faq-hero-stat {
  display: flex;
  flex-direction: column;
  padding-left: 14px;
  border-left: 2px solid var(--volt);
}

.page-faq .faq-stat-num {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-faq .faq-stat-label {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--silver);
}

/* ===== 主体布局 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding: 48px 0 80px;
}

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

/* ===== 侧边栏 ===== */
.page-faq .faq-sidebar-inner {
  background: var(--bg-raised);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--volt);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.page-faq .faq-sidebar-kicker {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--volt);
  text-transform: uppercase;
}

.page-faq .faq-sidebar-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-sidebar-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-faq .faq-sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--silver);
  font-size: 15px;
  text-decoration: none;
  transition: color .2s ease, padding-left .2s ease, border-color .2s ease;
}

.page-faq .faq-sidebar-link:hover,
.page-faq .faq-sidebar-link:focus-visible {
  color: var(--paper);
  padding-left: 6px;
  border-bottom-color: var(--line-strong);
}

.page-faq .faq-sidebar-num {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  color: var(--electric);
}

.page-faq .faq-sidebar-note {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-left: 2px solid var(--volt);
  border-radius: var(--radius);
  background: rgba(0, 200, 255, .06);
  color: var(--silver);
  font-size: 13px;
}

/* ===== 章节标题 ===== */
.page-faq .faq-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--volt);
}

.page-faq .faq-section-title::after {
  content: "";
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, var(--electric), transparent);
}

.page-faq .faq-section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 6px;
  border-radius: 2px;
  background: var(--volt);
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  transform: skew(-12deg);
}

/* ===== 手风琴 ===== */
.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--bg-raised);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color .25s ease, background-color .25s ease, box-shadow .25s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--electric);
  border-color: rgba(0, 200, 255, .35);
  background: rgba(0, 200, 255, .04);
  box-shadow: 0 6px 24px rgba(0, 0, 0, .2);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  margin: 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
  transition: color .2s ease, background-color .2s ease;
}

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

.page-faq .faq-question::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--silver);
  transition: color .2s ease;
}

.page-faq .faq-item[open] .faq-question {
  color: var(--electric);
}

.page-faq .faq-item[open] .faq-question::after {
  content: "–";
  color: var(--volt);
}

.page-faq .faq-qnum {
  flex-shrink: 0;
  min-width: 28px;
  padding: 2px 4px;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  text-align: center;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--volt);
}

.page-faq .faq-answer {
  padding: 0 18px 18px 46px;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.7;
}

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

.page-faq .faq-inline-link {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 200, 255, .35);
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--volt);
  border-bottom-color: var(--volt);
}

/* ===== 联系卡片 ===== */
.page-faq .faq-contact-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-contact-card {
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 10px 32px rgba(0, 0, 0, .3);
}

.page-faq .faq-contact-info {
  padding: 28px 24px;
}

.page-faq .faq-contact-caption {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  opacity: .9;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(26, 20, 8, .12);
}

.page-faq .faq-contact-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-contact-label {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  opacity: .55;
}

.page-faq .faq-contact-value {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  word-break: break-all;
  transition: color .2s ease;
}

.page-faq .faq-contact-value:hover,
.page-faq .faq-contact-value:focus-visible {
  color: var(--faq-link-hover);
}

.page-faq .faq-contact-media {
  min-height: 240px;
  background: var(--bg-raised);
}

.page-faq .faq-contact-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ===== 桌面断点 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 0 64px;
  }

  .page-faq .faq-hero-stats {
    gap: 36px;
  }

  .page-faq .faq-stat-num {
    font-size: 32px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-sidebar-w) 1fr;
    gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-sidebar-inner {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-sidebar-inner {
    padding: 28px 24px;
  }

  .page-faq .faq-section-title {
    font-size: 22px;
  }

  .page-faq .faq-question {
    padding: 18px 20px;
    font-size: 16px;
  }

  .page-faq .faq-answer {
    padding: 0 20px 20px 50px;
    font-size: 16px;
  }

  .page-faq .faq-contact-card {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-contact-info {
    padding: 36px 32px;
  }

  .page-faq .faq-contact-media {
    min-height: 100%;
  }
}