.page-faq {
  --faq-sticky-top: 96px;
  background: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-head {
  position: relative;
  padding-block: clamp(26px, 5vw, 54px) clamp(40px, 7vw, 84px);
  overflow: hidden;
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--rule) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 76%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 76%);
  pointer-events: none;
}

.page-faq .faq-head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--sheen);
  opacity: 0.85;
}

.page-faq .faq-head .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-head-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-head-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(38px, 8vw, 64px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-head-copy .lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 34em;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-faq .faq-head-sub {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--gold-deep);
}

.page-faq .faq-head-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-meta {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.page-faq .faq-meta .num {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0;
  color: var(--cinnabar-deep);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-head-figure {
  margin: 0;
}

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

/* ---------- 主体骨架 ---------- */

.page-faq .faq-body {
  padding-block: clamp(34px, 6vw, 68px) clamp(22px, 4vw, 44px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

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

/* ---------- 目录 ---------- */

.page-faq .faq-toc {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.page-faq .faq-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-toc-list li {
  flex: none;
}

.page-faq .faq-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-toc-num {
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-toc-label {
  font-size: 14px;
  letter-spacing: 0.05em;
}

/* ---------- 分组 ---------- */

.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky-top);
  padding-block: clamp(26px, 4vw, 40px);
}

.page-faq .faq-answers > .faq-group:first-child {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-answers > .faq-group + .faq-group,
.page-faq .faq-answers > .faq-inline-figure + .faq-group {
  border-top: 1px solid var(--rule);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(10px, 1.6vw, 18px);
}

.page-faq .faq-group-index {
  flex: none;
  font-family: var(--font-num);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--gold-deep);
  opacity: 0.5;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.2vw, 28px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-group-note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- 问题与答案 ---------- */

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

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0 14px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: clamp(17px, 2.1vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color 160ms var(--ease);
}

.page-faq .faq-item summary::-webkit-details-marker,
.page-faq .faq-item summary::marker {
  display: none;
  content: "";
}

.page-faq .faq-item summary:hover {
  color: var(--cinnabar-deep);
}

.page-faq .faq-q-num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-toggle {
  position: relative;
  flex: none;
  align-self: center;
  width: 14px;
  height: 14px;
  margin-top: 4px;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  background: var(--gold-deep);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .faq-toggle::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-answer {
  max-width: 66ch;
  margin-left: 2px;
  padding: 0 0 20px 16px;
  border-left: 2px solid var(--cream-deep);
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

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

.page-faq .faq-answer strong {
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-answer a {
  color: var(--lapis);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-answer a:hover {
  color: var(--cinnabar-deep);
}

.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  margin-bottom: 8px;
  padding-left: 32px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

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

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 18px;
  border: 1px solid var(--rule);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

/* ---------- 导出字段条 ---------- */

.page-faq .faq-fields {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 12px 0 0;
  list-style: none;
  border-top: 1px dashed var(--rule);
}

.page-faq .faq-fields li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-field-name {
  padding-left: 8px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-faq .faq-field-desc {
  padding-left: 10px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* ---------- 内联插图 ---------- */

.page-faq .faq-inline-figure {
  margin: clamp(24px, 3.4vw, 36px) 0;
}

.page-faq .faq-inline-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

/* ---------- 联系路径 ---------- */

.page-faq .faq-escape {
  padding-block: clamp(38px, 6vw, 76px) clamp(52px, 8vw, 104px);
  background: var(--cream);
  scroll-margin-top: var(--faq-sticky-top);
}

.page-faq .faq-escape-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 46px) clamp(20px, 4vw, 52px);
  background: var(--ink);
  clip-path: polygon(
    0 0,
    calc(100% - var(--cut) * 2) 0,
    100% calc(var(--cut) * 2),
    100% 100%,
    calc(var(--cut) * 2) 100%,
    0 calc(100% - var(--cut) * 2)
  );
}

.page-faq .faq-escape-panel::after {
  content: "";
  position: absolute;
  right: -58px;
  top: -58px;
  width: 210px;
  height: 210px;
  border: 1px solid var(--gold);
  opacity: 0.24;
  transform: rotate(18deg);
  pointer-events: none;
}

.page-faq .faq-escape-panel .eyebrow {
  color: var(--gold);
}

.page-faq .faq-escape-panel h2 {
  position: relative;
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .faq-escape-panel > p {
  position: relative;
  max-width: 58ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--cream-deep);
}

.page-faq .faq-escape-list {
  position: relative;
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-escape-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream-deep);
}

.page-faq .faq-escape-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-faq .faq-escape-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-escape-panel .btn-primary {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: #FFFFFF;
}

.page-faq .faq-escape-panel .btn-primary:hover,
.page-faq .faq-escape-panel .btn-primary:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-faq .faq-escape-panel .btn-ghost {
  border-color: var(--gold);
  color: var(--paper);
}

.page-faq .faq-escape-panel .btn-ghost:hover,
.page-faq .faq-escape-panel .btn-ghost:focus-visible {
  background: rgba(201, 162, 39, 0.18);
  border-color: var(--gold);
}

/* ---------- 焦点 ---------- */

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-faq .faq-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-head-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
  }

  .page-faq .faq-head-figure {
    transform: translateY(10px);
  }
}

@media (min-width: 1024px) {
  .page-faq {
    --faq-sticky-top: 104px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: var(--faq-sticky-top);
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc-list li {
    width: 100%;
  }

  .page-faq .faq-toc-list a {
    align-items: center;
    padding: 11px 0 11px 14px;
    border: 0;
    border-left: 2px solid var(--cream-deep);
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-toc-list a:hover,
  .page-faq .faq-toc-list a:focus-visible {
    border-left-color: var(--cinnabar);
    background: var(--cream);
    transform: translateX(3px);
  }

  .page-faq .faq-answers {
    background: var(--cream);
    border-top: 2px solid var(--ink);
    padding: clamp(10px, 1.6vw, 22px) clamp(20px, 2.6vw, 38px) clamp(20px, 3vw, 40px);
  }

  .page-faq .faq-toc-num {
    font-size: 22px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-layout {
    grid-template-columns: 258px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-faq .faq-toc-list a:hover,
  .page-faq .faq-toc-list a:focus-visible {
    transform: none;
  }

  .page-faq .faq-head-figure {
    transform: none;
  }
}