.page-faq {
  --faq-pad-y: clamp(38px, 6vw, 74px);
  --faq-ink-soft: rgba(230, 238, 239, .78);
  --faq-ink-faint: rgba(230, 238, 239, .68);
  color: var(--jt-fog);
  font-family: var(--jt-font-body);
}

/* ---------- 页头 ---------- */
.page-faq .jt-pagehead {
  background-color: rgba(22, 56, 47, .42);
  border-bottom: 1px solid var(--jt-line-hair);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .jt-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--jt-font-mono);
  font-size: 12px;
  color: var(--jt-mist);
}

.page-faq .jt-crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--jt-line);
}

.page-faq .jt-crumbs__list a {
  color: var(--jt-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--jt-ease), border-color .25s var(--jt-ease);
}

.page-faq .jt-crumbs__list a:hover,
.page-faq .jt-crumbs__list a[aria-current="page"] {
  color: var(--jt-fog);
  border-bottom-color: var(--jt-accent);
}

.page-faq .jt-pagehead__kicker {
  margin: 0;
  font-family: var(--jt-font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--jt-sand);
}

.page-faq .jt-pagehead__title {
  margin: 14px 0 0;
  font-family: var(--jt-font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.14;
  color: var(--jt-fog);
}

.page-faq .jt-lead {
  margin: 18px 0 0;
  max-width: 48em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-meta {
  display: grid;
  gap: 10px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--jt-line-hair);
  font-size: 13px;
  line-height: 1.6;
  color: var(--jt-mist);
}

.page-faq .faq-meta__key {
  display: block;
  font-family: var(--jt-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--jt-sand);
  margin-bottom: 2px;
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--jt-line-hair);
}

.page-faq .faq-index a {
  font-family: var(--jt-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--jt-mist);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--jt-ease), border-color .25s var(--jt-ease);
}

.page-faq .faq-index a:hover {
  color: var(--jt-fog);
  border-bottom-color: var(--jt-accent);
}

/* ---------- 章节骨架 ---------- */
.page-faq .jt-section {
  padding: var(--faq-pad-y) 0;
  border-bottom: 1px solid var(--jt-line-hair);
  scroll-margin-top: 84px;
}

.page-faq .jt-section:last-of-type {
  border-bottom: 0;
}

.page-faq .jt-section__num {
  font-family: var(--jt-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--jt-accent);
}

.page-faq .jt-section__title {
  font-family: var(--jt-font-display);
  font-weight: 700;
  letter-spacing: -.012em;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  margin: 8px 0 6px;
  color: var(--jt-fog);
}

.page-faq .jt-section__meta {
  font-family: var(--jt-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--jt-mist);
  margin: 0;
}

.page-faq .jt-prose {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .jt-prose a,
.page-faq a {
  color: var(--jt-link);
  text-decoration: none;
  border-bottom: 1px solid rgba(76, 147, 168, .45);
}

.page-faq .jt-prose a:hover,
.page-faq a:hover {
  color: var(--jt-accent);
  border-bottom-color: rgba(255, 107, 44, .6);
}

/* ---------- 阅读顺序 ---------- */
.page-faq .faq-seq {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-seq::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 10px;
  bottom: 16px;
  width: 1px;
  background: var(--jt-line-hair);
}

.page-faq .faq-seq__item {
  position: relative;
  padding: 0 0 22px 46px;
}

.page-faq .faq-seq__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-seq__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid var(--jt-line-soft);
  border-radius: 50%;
  background: var(--jt-ink);
  font-family: var(--jt-font-mono);
  font-size: 11px;
  color: var(--jt-mist);
}

.page-faq .faq-seq__title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--jt-fog);
  line-height: 1.5;
  padding-top: 3px;
}

.page-faq .faq-seq__body {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-ink-faint);
}

/* ---------- 图与注释带 ---------- */
.page-faq .faq-figure {
  margin: 0 0 16px;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  filter: saturate(.7) contrast(1.04) brightness(.9);
}

.page-faq .jt-media__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--jt-mist);
}

.page-faq .faq-note {
  display: block;
  margin: 18px 0 0;
  padding: 9px 0 9px 13px;
  border-left: 1px solid var(--jt-lake);
  font-family: var(--jt-font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--jt-mist);
}

/* ---------- 分档 ---------- */
.page-faq .faq-scale {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  background-color: rgba(8, 17, 20, .5);
  padding: 6px;
  box-sizing: border-box;
}

.page-faq .faq-scale__seg {
  stroke: rgba(230, 238, 239, .12);
  stroke-width: 1;
}

.page-faq .faq-scale__seg--s1 { fill: rgba(46, 110, 126, .16); }
.page-faq .faq-scale__seg--s2 { fill: rgba(46, 110, 126, .3); }
.page-faq .faq-scale__seg--s3 { fill: rgba(46, 110, 126, .46); }
.page-faq .faq-scale__seg--s4 { fill: rgba(46, 110, 126, .64); }
.page-faq .faq-scale__seg--s5 { fill: rgba(46, 110, 126, .8); }
.page-faq .faq-scale__seg--top { fill: rgba(255, 107, 44, .82); }

.page-faq .faq-scale__label {
  fill: var(--jt-sand);
  font-family: var(--jt-font-mono);
  font-size: 13px;
  letter-spacing: .04em;
}

.page-faq .faq-scale__tick {
  fill: var(--jt-mist);
  font-family: var(--jt-font-mono);
  font-size: 12px;
  text-anchor: middle;
}

.page-faq .faq-tiers {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-faq .faq-tiercard {
  padding: 18px 18px 12px;
}

.page-faq .faq-tiercard .jt-card__title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--jt-fog);
  margin: 0 0 6px;
}

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

.page-faq .faq-tier {
  display: grid;
  gap: 6px;
  padding: 11px 8px;
  border-bottom: 1px solid var(--jt-line-hair);
  transition: background-color .3s var(--jt-ease), border-color .3s var(--jt-ease);
}

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

.page-faq .faq-tier:hover {
  background-color: rgba(255, 107, 44, .06);
  border-bottom-color: rgba(255, 107, 44, .42);
}

.page-faq .faq-tier__range {
  font-family: var(--jt-font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--jt-fog);
}

.page-faq .faq-tier__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--faq-ink-faint);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table-wrap {
  margin: 24px 0 0;
  overflow-x: auto;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
}

.page-faq .faq-table__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  font-family: var(--jt-font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--jt-sand);
  border-bottom: 1px solid var(--jt-line-hair);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--jt-line-hair);
  vertical-align: top;
  line-height: 1.6;
}

.page-faq .faq-table thead th {
  font-family: var(--jt-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--jt-mist);
  background-color: rgba(22, 56, 47, .5);
  white-space: nowrap;
}

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

.page-faq .faq-table tbody tr:hover td {
  background-color: rgba(46, 110, 126, .12);
}

.page-faq .faq-table .jt-num {
  font-family: var(--jt-font-mono);
  color: var(--jt-fog);
  white-space: nowrap;
}

/* ---------- 公式与规则 ---------- */
.page-faq .faq-formula {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--jt-accent);
  background-color: rgba(46, 110, 126, .12);
  font-family: var(--jt-font-mono);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--jt-fog);
}

.page-faq .faq-rules {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-rules li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-ink-faint);
}

.page-faq .faq-rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--jt-lake);
}

.page-faq .faq-calc {
  margin: 20px 0 0;
  padding: 14px 18px;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-calc .jt-num {
  font-family: var(--jt-font-mono);
  color: var(--jt-fog);
}

.page-faq .faq-calc__out {
  font-family: var(--jt-font-mono);
  color: var(--jt-accent);
}

/* ---------- 侧栏卡 ---------- */
.page-faq .faq-sidecard {
  margin-top: 24px;
  padding: 18px;
}

.page-faq .faq-sidecard .jt-card__title {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--jt-fog);
  margin: 0;
}

.page-faq .faq-sidecard .faq-rules {
  margin-top: 14px;
}

/* ---------- 对照清单 ---------- */
.page-faq .faq-compare {
  margin: 26px 0 0;
  border-top: 1px solid var(--jt-line-soft);
}

.page-faq .faq-compare__row {
  display: grid;
  gap: 12px;
  padding: 18px 0 12px;
  border-bottom: 1px solid var(--jt-line-hair);
  transition: background-color .3s var(--jt-ease);
}

.page-faq .faq-compare__row:hover {
  background-color: rgba(76, 147, 168, .07);
}

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

.page-faq .faq-compare__mark {
  display: inline-block;
  font-family: var(--jt-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  padding: 2px 7px;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  color: var(--jt-sand);
}

.page-faq .faq-compare__mark--right {
  color: var(--jt-accent);
  border-color: rgba(255, 107, 44, .42);
}

.page-faq .faq-compare__text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
}

.page-faq .faq-compare__cell--wrong .faq-compare__text {
  color: var(--jt-mist);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 107, 44, .72);
  text-decoration-thickness: 1px;
}

.page-faq .faq-compare__cell--right .faq-compare__text {
  color: rgba(230, 238, 239, .88);
}

.page-faq .faq-compare__note {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  padding: 8px 11px;
  border-left: 1px solid var(--jt-lake);
  background-color: rgba(46, 110, 126, .1);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--jt-mist);
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps__item {
  position: relative;
  padding: 16px 16px 16px 58px;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  background-color: rgba(22, 56, 47, .38);
  transition: border-color .3s var(--jt-ease);
}

.page-faq .faq-steps__item:hover {
  border-color: rgba(255, 107, 44, .5);
}

.page-faq .faq-steps__item::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  position: absolute;
  left: 16px;
  top: 17px;
  font-family: var(--jt-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--jt-accent);
}

.page-faq .faq-steps__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--jt-fog);
  line-height: 1.5;
}

.page-faq .faq-steps__body {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink-faint);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  margin: 22px 0 0;
  border: 1px solid var(--jt-line-hair);
  border-radius: var(--jt-radius);
  background-color: rgba(8, 17, 20, .5);
}

.page-faq .faq-qa + .faq-qa {
  margin-top: 10px;
}

.page-faq .faq-qa__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 14px 46px 14px 16px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--jt-fog);
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--jt-font-mono);
  font-size: 15px;
  color: var(--jt-mist);
}

.page-faq .faq-qa[open] .faq-qa__q::after {
  content: "–";
  color: var(--jt-accent);
}

.page-faq .faq-qa__body {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--jt-line-hair);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-ink-faint);
}

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

/* ---------- 联络与延伸 ---------- */
.page-faq .faq-contact {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact li {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--jt-line-hair);
}

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

.page-faq .faq-contact__key {
  display: block;
  font-family: var(--jt-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--jt-sand);
  margin-bottom: 4px;
}

.page-faq .faq-contact__val {
  font-size: 14.5px;
  color: var(--jt-fog);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--jt-mist);
}

.page-faq .faq-next {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-next .jt-btn {
  font-size: 13px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 24px;
  }

  .page-faq .faq-tier {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-faq .faq-contact li {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-tiers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-compare__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding: 22px 0 14px;
  }

  .page-faq .faq-compare__cell--wrong {
    padding-right: 32px;
    border-right: 1px solid var(--jt-line-hair);
  }

  .page-faq .faq-compare__cell--right {
    padding-left: 32px;
  }

  .page-faq .faq-sidecard {
    margin-top: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tier,
  .page-faq .faq-compare__row,
  .page-faq .faq-steps__item,
  .page-faq .jt-crumbs__list a,
  .page-faq .faq-index a {
    transition: none;
  }
}