.page-faq {
  --faq-panel: rgba(22, 17, 15, .032);
  --faq-body: rgba(22, 17, 15, .78);
  --faq-axis-w: 206px;
  overflow-x: clip;
  padding-bottom: clamp(56px, 9vw, 120px);
}

.page-faq .breadcrumb {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gray);
}

.page-faq .breadcrumb a {
  color: inherit;
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--red);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  display: inline-block;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -.02em;
  transform: skew(-2deg);
  transform-origin: left center;
}

.page-faq .faq-hero__intro {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .faq-hero__meta {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-left: 16px;
  border-left: 1px solid var(--rule);
}

.page-faq .faq-hero__stats {
  display: flex;
  gap: 22px;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--red);
}

.page-faq .faq-stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gray);
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 8px;
  margin-top: clamp(28px, 5vw, 52px);
}

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

/* ---------- 纵向索引轴 ---------- */
.page-faq .faq-axis {
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

.page-faq .faq-axis__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gray);
}

.page-faq .faq-axis__list {
  display: flex;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-axis__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-axis__link.is-active {
  border-color: var(--red);
  color: var(--red);
}

.page-faq .faq-axis__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-block {
  padding-top: clamp(34px, 5vw, 60px);
  scroll-margin-top: 120px;
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  align-items: baseline;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 30px);
  letter-spacing: -.01em;
  line-height: 1.25;
}

.page-faq .faq-block__note {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  margin-top: 22px;
}

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

.page-faq .faq-item summary {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--gray);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--red);
}

.page-faq .faq-q {
  display: inline-block;
  transform: skew(-2deg);
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.01em;
}

.page-faq .faq-coord {
  flex: none;
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-a {
  margin: 0 0 18px 40px;
  padding: 12px 0 12px 18px;
  border-left: 2px solid var(--silver);
  background: linear-gradient(90deg, var(--faq-panel), rgba(22, 17, 15, 0));
}

.page-faq .faq-a p {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-body);
}

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

.page-faq .faq-a a {
  color: var(--blue);
}

/* ---------- 图文并排 ---------- */
.page-faq .faq-duo {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

.page-faq .faq-duo .faq-list {
  margin-top: 0;
}

.page-faq .faq-media {
  margin: 22px 0 0;
}

.page-faq .faq-duo .faq-media {
  margin-top: 0;
}

.page-faq .faq-shot {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-shot--square {
  aspect-ratio: 1 / 1;
}

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

.page-faq .faq-cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-block--contact {
  margin-top: clamp(36px, 5vw, 64px);
  padding: 28px 22px 32px;
  border-top: 2px solid var(--red);
  background: linear-gradient(140deg, var(--ink) 0%, #221a17 62%, var(--wine) 150%);
  color: var(--cream);
}

.page-faq .faq-block--contact .faq-block__head {
  border-top-color: var(--cream-line);
}

.page-faq .faq-block--contact .faq-block__note {
  color: var(--cream-dim);
}

.page-faq .faq-help {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-faq .faq-help__card {
  padding: 20px 20px 22px;
  border: 1px solid var(--cream-line);
  border-top: 2px solid var(--red);
  background: rgba(243, 237, 226, .05);
}

.page-faq .faq-help__card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: -.01em;
}

.page-faq .faq-help__card p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cream-dim);
}

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

.page-faq .faq-help__card a {
  color: var(--neon);
}

.page-faq .faq-help__data {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
}

.page-faq .faq-cta__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cream-dim);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-a {
    margin-left: 0;
  }

  .page-faq .faq-hero__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .page-faq .faq-block__head {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-block__note {
    grid-column: 1;
  }

  .page-faq .faq-block--contact {
    padding: 24px 16px 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: end;
  }

  .page-faq .faq-hero__meta {
    padding-bottom: 6px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-axis-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-axis {
    position: sticky;
    top: calc(var(--rail-h) + var(--main-h) + 24px);
    align-self: start;
  }

  .page-faq .faq-axis__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-axis__link {
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 2px solid var(--silver);
    white-space: normal;
  }

  .page-faq .faq-axis__link.is-active {
    border-left-color: var(--red);
    background: var(--faq-panel);
  }

  .page-faq .faq-duo {
    grid-template-columns: minmax(0, 1fr) 268px;
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-block--contact {
    padding: 32px 30px 36px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-a {
    margin-left: 54px;
    padding-left: 22px;
  }
}