.page-faq {
  --faq-ink-text: #332F29;
  --faq-gap: clamp(44px, 6vw, 88px);
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(63, 208, 201, .10), transparent 62%),
    radial-gradient(760px 460px at -10% 22%, rgba(201, 162, 75, .12), transparent 60%),
    var(--ink);
  color: var(--silver);
  padding-bottom: clamp(56px, 8vw, 104px);
}

/* ---------- 首屏声明 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(46px, 8vw, 96px);
  padding-bottom: 22px;
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-title {
  margin: 14px 0 18px;
  max-width: 22ch;
  font-size: clamp(29px, 5.2vw, 56px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: .028em;
  color: var(--pearl);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 分类锚点 ---------- */
.page-faq .faq-index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 10px;
  padding-bottom: 16px;
  scrollbar-width: none;
  border-bottom: 1px solid var(--hair-cool);
}

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

.page-faq .faq-chip {
  flex: 0 0 auto;
  display: inline-block;
  padding: 9px 15px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--silver);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--gold);
  color: var(--gold-soft);
  transform: translateY(-2px);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-top: var(--faq-gap);
}

.page-faq .faq-head {
  position: relative;
  padding-top: 20px;
  margin-bottom: 24px;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 54px;
  height: 2px;
  background: var(--gold);
}

.page-faq .faq-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: .92rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .faq-head h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.3vw, 34px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: .03em;
  color: var(--pearl);
}

.page-faq .faq-sub {
  margin: 0;
  max-width: 58ch;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 双列与图示 ---------- */
.page-faq .faq-cols {
  display: grid;
  gap: 22px;
}

.page-faq .faq-fig {
  margin: 0;
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  background: var(--ink-deep);
  overflow: hidden;
  box-shadow: var(--shadow-stack);
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-fig figcaption {
  padding: 12px 15px;
  border-top: 1px solid var(--hair-cool);
  font-size: .84rem;
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 问答折叠卡 ---------- */
.page-faq .faq-list {
  counter-reset: qa;
  display: grid;
  gap: 12px;
}

.page-faq .qa-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--r);
  box-shadow: var(--shadow-stack);
}

.page-faq .qa-q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 18px;
  font-size: 1.01rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--ink-deep);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color .18s var(--ease);
}

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

.page-faq .qa-q::before {
  counter-increment: qa;
  content: "Q" counter(qa, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--gold-deep);
}

.page-faq .qa-q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--gold-deep);
}

.page-faq .qa-card[open] .qa-q::after {
  content: "–";
}

.page-faq .qa-card[open] .qa-q {
  border-bottom: 1px solid rgba(28, 26, 23, .16);
}

.page-faq .qa-q:hover {
  color: var(--gold-deep);
}

.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa-a {
  padding: 14px 18px 17px 18px;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--faq-ink-text);
}

.page-faq .qa-a p {
  margin: 0 0 8px;
}

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

.page-faq .qa-a strong {
  color: var(--gold-deep);
  font-weight: 800;
}

.page-faq .qa-a .link-inline {
  color: var(--gold-deep);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.page-faq .faq-steps li {
  position: relative;
  padding: 18px 16px 16px;
  background: linear-gradient(180deg, var(--ink-soft), var(--ink-deep));
  border: 1px solid var(--hair);
  border-radius: var(--r);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-steps li:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}

.page-faq .faq-step-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-steps strong {
  display: block;
  margin-bottom: 6px;
  font-size: .98rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--pearl);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 数据条 ---------- */
.page-faq .faq-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--hair-cool);
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-strip-item {
  padding: 18px;
  background: var(--ink-soft);
}

.page-faq .faq-strip-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-strip-num--cyan {
  color: var(--cyan);
}

.page-faq .faq-strip-num--orange {
  color: var(--orange);
}

.page-faq .faq-strip-label {
  display: block;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 版本对照表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--hair-cool);
  border-radius: var(--r);
}

.page-faq .faq-ver {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: .92rem;
}

.page-faq .faq-ver th {
  padding: 13px 15px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--gold);
  background: var(--ink-deep);
  border-bottom: 1px solid var(--hair);
  white-space: nowrap;
}

.page-faq .faq-ver td {
  padding: 13px 15px;
  line-height: 1.65;
  color: var(--silver);
  border-bottom: 1px solid var(--hair-cool);
}

.page-faq .faq-ver tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-ver .ver-code {
  font-family: var(--font-mono);
  color: var(--pearl);
  white-space: nowrap;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-fine {
  margin: 16px 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 断点 ---------- */
@media (max-width: 519px) {
  .page-faq .qa-a {
    padding-left: 18px;
  }

  .page-faq .qa-q {
    font-size: .96rem;
    padding: 14px 15px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 350px);
    align-items: start;
    gap: 28px;
  }

  .page-faq .faq-cols--flip {
    grid-template-columns: minmax(0, 350px) minmax(0, 1fr);
  }

  .page-faq .faq-cols--flip .faq-fig {
    order: -1;
  }

  .page-faq .faq-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 20px;
    align-items: baseline;
  }

  .page-faq .faq-num {
    margin-bottom: 0;
  }

  .page-faq .faq-head h2 {
    grid-column: 2;
  }

  .page-faq .faq-sub {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .qa-q,
  .page-faq .faq-steps li {
    transition: none;
  }

  .page-faq .faq-chip:hover,
  .page-faq .faq-steps li:hover {
    transform: none;
  }
}