.page-faq {
  --faq-hair: rgba(200, 220, 255, 0.12);
  --faq-hair-lit: rgba(46, 123, 255, 0.34);
  --faq-surface: #10151F;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: 36px 56px;
}

.page-faq .faq-hero__copy {
  margin-top: 26px;
  max-width: 52em;
}

.page-faq .faq-hero .display-xl {
  margin: 6px 0 0;
  font-size: clamp(36px, 7.6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 300;
  max-width: 14em;
}

.page-faq .faq-hero__meta {
  align-items: center;
  gap: 14px 18px;
  margin-top: 6px;
}

.page-faq .faq-hero__note {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-sectionhead {
  max-width: 46em;
  margin-bottom: 34px;
}

.page-faq .faq-sectionhead .display-m {
  margin: 8px 0 0;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  font-weight: 300;
}

.page-faq .faq-sectionhead .lede {
  margin-top: 14px;
}

/* ---------- 状态图例 ---------- */
.page-faq .faq-legend-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-legend {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-legend__item {
  position: relative;
  padding: 20px 20px 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  background: linear-gradient(180deg, rgba(200, 220, 255, 0.075), rgba(200, 220, 255, 0.018));
  overflow: hidden;
}

.page-faq .faq-legend__item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--tone);
  box-shadow: 0 0 16px var(--tone);
}

.page-faq .faq-legend__item--jade { --tone: #2FD3A8; }
.page-faq .faq-legend__item--amber { --tone: #FFB020; }
.page-faq .faq-legend__item--red { --tone: #FF2D55; }

.page-faq .legend-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--tone);
  box-shadow: 0 0 0 4px rgba(242, 244, 248, 0.05), 0 0 16px var(--tone);
  vertical-align: middle;
}

.page-faq .faq-legend__name {
  display: inline-block;
  margin: 0 0 0 10px;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text);
  vertical-align: middle;
}

.page-faq .faq-legend__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-legend__figure {
  margin: 0;
}

/* ---------- 三步排查法 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 22px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--faq-hair);
  background: var(--faq-surface);
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -12px;
  width: 1px;
  height: 8px;
  background: var(--faq-hair-lit);
}

.page-faq .faq-step:last-child::after {
  display: none;
}

.page-faq .faq-step__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-step__title {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-step__body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-steps__figure {
  margin: 40px 0 0;
}

/* ---------- 按现象排查 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: 40px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-hair);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text);
}

.page-faq .faq-group__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 22px;
  padding: 0 7px;
  border-radius: 999px;
  border: 1px solid rgba(231, 200, 122, 0.4);
  background: rgba(231, 200, 122, 0.08);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .faq-rows {
  display: grid;
  gap: 8px;
}

.page-faq .faq-row {
  border-radius: var(--radius);
}

.page-faq .faq-row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--faq-hair);
  background: var(--faq-surface);
  cursor: pointer;
  list-style: none;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-faq .faq-row__head::-webkit-details-marker { display: none; }
.page-faq .faq-row__head::marker { content: ""; }

.page-faq .faq-row__head:hover,
.page-faq .faq-row__head:focus-visible {
  border-color: var(--faq-hair-lit);
  background: rgba(16, 21, 31, 0.96);
  outline: none;
}

.page-faq .faq-row__head:focus-visible {
  box-shadow: 0 0 0 2px rgba(46, 123, 255, 0.55);
}

.page-faq .faq-row__idx {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-row__title {
  flex: 1 1 210px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .faq-row__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 2px solid var(--faint);
  border-bottom: 2px solid var(--faint);
  transform: rotate(45deg);
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-faq .faq-row[open] .faq-row__chev {
  transform: rotate(-135deg);
  border-color: var(--blue);
}

.page-faq .faq-row[open] .faq-row__head {
  border-radius: var(--radius) var(--radius) 0 0;
  border-color: var(--faq-hair-lit);
  background: rgba(16, 21, 31, 0.96);
}

.page-faq .faq-row__body {
  padding: 6px 18px 20px;
  border: 1px solid var(--faq-hair-lit);
  border-top: 0;
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(7, 9, 15, 0.6);
}

.page-faq .faq-field {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-field__k {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(231, 200, 122, 0.34);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  white-space: nowrap;
}

/* ---------- 版本对照表 ---------- */
.page-faq .faq-tablewrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--faq-hair);
  background: rgba(7, 9, 15, 0.45);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-table__cap {
  padding: 16px 18px 0;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-hair);
  line-height: 1.65;
}

.page-faq .faq-table thead th {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--faint);
  white-space: nowrap;
  background: rgba(200, 220, 255, 0.045);
}

.page-faq .faq-table tbody td:first-child {
  color: var(--muted);
}

.page-faq .faq-table tbody td:nth-child(2) {
  color: var(--text);
}

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

.page-faq .faq-note {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faint);
}

/* ---------- 账号问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-qa__item {
  padding: 22px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-qa__q {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-qa__a {
  margin: 10px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-account__links {
  margin-top: 30px;
  gap: 12px;
}

/* ---------- 纠错提交 ---------- */
.page-faq .faq-submit__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-submit__step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--faq-hair);
  background: rgba(7, 9, 15, 0.4);
}

.page-faq .faq-submit__num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-submit__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-submit__contact {
  margin-top: 28px;
  padding: 26px 24px 28px;
}

.page-faq .faq-submit__line {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--text);
}

.page-faq .faq-submit__line .mono {
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.03em;
  word-break: break-all;
}

.page-faq .faq-submit__hint {
  margin: 14px 0 20px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-legend-split {
    grid-template-columns: 1.06fr 0.94fr;
    gap: 34px;
  }

  .page-faq .faq-row__head {
    flex-wrap: nowrap;
    padding: 17px 22px;
  }

  .page-faq .faq-row__body {
    padding: 8px 22px 24px;
  }

  .page-faq .faq-field {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: baseline;
  }

  .page-faq .faq-field__k {
    margin-right: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-faq .faq-step {
    padding: 28px 24px 30px;
  }

  .page-faq .faq-step::after {
    left: auto;
    right: -14px;
    top: 50%;
    bottom: auto;
    width: 10px;
    height: 1px;
  }

  .page-faq .faq-steps__figure {
    margin-top: 48px;
  }

  .page-faq .faq-hero {
    padding-block: 44px 64px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-legend-split {
    grid-template-columns: 1fr 0.86fr;
    gap: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-row__chev,
  .page-faq .faq-row__head {
    transition-duration: 0.01ms;
  }
}