.page-faq {
  background: var(--ink);
  color: var(--silver);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

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

.page-faq .breadcrumbs {
  padding-top: 1.1rem;
  padding-bottom: .4rem;
  font-size: .84rem;
  color: var(--mist);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2rem, 5vw, 3.4rem);
  background:
    radial-gradient(120% 78% at 88% -12%, rgba(168, 198, 232, .16), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--night) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--moon);
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 0 0 1.4rem;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(1.95rem, 7.2vw, 4.3rem);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--silver);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.8rem);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.85;
  color: var(--moon);
}

.page-faq .faq-hero__scales {
  display: grid;
  align-content: end;
}

.page-faq .faq-scale {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: .72rem 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-scale:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-scale__num {
  flex: none;
  min-width: 3.6rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .faq-scale__label {
  font-size: .86rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-hero__figure {
  margin: clamp(1.8rem, 4vw, 2.6rem) 0 0;
}

.page-faq .figure__frame {
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--night);
  overflow: hidden;
}

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

.page-faq .figure__caption {
  margin-top: .7rem;
  font-size: .8rem;
  color: var(--mist);
}

/* ============ 问答主体 ============ */
.page-faq .faq-main {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0 0;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: start;
}

.page-faq .faq-toc__title {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0 0 .4rem;
  padding: 0 0 .4rem;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
}

.page-faq .faq-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .95rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--moon);
  font-size: .86rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

.page-faq .faq-toc__count {
  display: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-tools {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.6rem;
}

.page-faq .filter-btn {
  font-size: .82rem;
}

.page-faq .faq-group {
  margin-bottom: clamp(2.2rem, 5vw, 3.4rem);
  scroll-margin-top: 6rem;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding-bottom: .7rem;
  margin-bottom: 1.2rem;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(1.3rem, 3.4vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--silver);
}

.page-faq .faq-group__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--mist);
}

/* 问答卡 */
.page-faq .faq-item {
  position: relative;
  margin-bottom: .7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--night);
  overflow: hidden;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: linear-gradient(225deg, var(--ink) 50%, transparent 50%);
  pointer-events: none;
}

.page-faq .faq-item[open] {
  background:
    linear-gradient(180deg, rgba(168, 198, 232, .08), transparent 42%),
    var(--night);
  border-color: var(--line-strong);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}

.page-faq .faq-item__num {
  flex: none;
  padding-top: .32rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .faq-item__text {
  flex: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--silver);
}

.page-faq .faq-item__mark {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  margin-top: .15rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-size: .95rem;
  line-height: 1;
  color: var(--moon);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  transform: rotate(45deg);
  color: var(--gold);
  border-color: var(--gold);
}

.page-faq .faq-item__body {
  padding: 0 1.1rem 1.2rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--moon);
}

.page-faq .faq-item__body p {
  margin: 0 0 .7rem;
}

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

.page-faq .faq-item__body ul {
  list-style: none;
  margin: .5rem 0 .8rem;
  padding: 0;
  display: grid;
  gap: .38rem;
}

.page-faq .faq-item__body li {
  position: relative;
  padding-left: 1rem;
}

.page-faq .faq-item__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--moon);
}

.page-faq .faq-item__body a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-verdict {
  padding-left: .8rem;
  border-left: 2px solid var(--gold);
  color: var(--silver);
}

/* 两端读取对比 */
.page-faq .faq-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  margin: 1.1rem 0 .7rem;
}

.page-faq .faq-compare__card {
  padding: 1.05rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(180deg, rgba(168, 198, 232, .09), rgba(11, 22, 51, .5));
}

.page-faq .faq-compare__label {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-serial {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.page-faq .faq-serial span {
  width: 22px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(168, 198, 232, .1);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: 0;
  color: var(--silver);
}

.page-faq .faq-serial span.is-key {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .faq-compare__result {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  margin: .9rem 0 0;
  font-size: .88rem;
  color: var(--mist);
}

.page-faq .faq-compare__result b {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  letter-spacing: .08em;
  color: var(--silver);
}

.page-faq .faq-compare__foot {
  font-size: .84rem;
  color: var(--mist);
}

/* ============ 术语对照（纸面区） ============ */
.page-faq .faq-terms {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
  scroll-margin-top: 5rem;
}

.page-faq .faq-terms .section__num {
  font-family: var(--font-mono);
  letter-spacing: .1em;
}

.page-faq .faq-terms .section__title {
  margin: .2rem 0 .7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(1.4rem, 3.6vw, 2.2rem);
  line-height: 1.2;
  color: var(--brown);
}

.page-faq .faq-terms__note {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--brown);
  opacity: .78;
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, .42);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: .9rem;
  color: var(--brown);
}

.page-faq .faq-table th {
  padding: .8rem 1rem;
  text-align: left;
  white-space: nowrap;
  font-size: .8rem;
  letter-spacing: .06em;
  font-weight: 700;
  background: rgba(36, 28, 20, .07);
  border-bottom: 1px solid var(--line-paper);
}

.page-faq .faq-table td {
  padding: .75rem 1rem;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid var(--line-paper);
}

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

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(36, 28, 20, .035);
}

.page-faq .faq-table .mono {
  font-family: var(--font-mono);
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-faq .faq-table a {
  color: var(--brown);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

.page-faq .faq-terms__figure {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  max-width: 720px;
}

.page-faq .faq-terms__figure .figure__frame {
  border-color: var(--line-paper);
  background: rgba(36, 28, 20, .05);
}

.page-faq .faq-terms__figure .figure__caption {
  color: var(--brown);
  opacity: .7;
}

/* ============ 还没解决 ============ */
.page-faq .faq-help {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0 clamp(3rem, 7vw, 5rem);
  scroll-margin-top: 5rem;
}

.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.4rem);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(120deg, rgba(217, 164, 65, .12), transparent 58%),
    var(--night);
}

.page-faq .faq-help .section__num {
  font-family: var(--font-mono);
  letter-spacing: .1em;
}

.page-faq .faq-help__title {
  margin: .3rem 0 .8rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(1.3rem, 3.6vw, 2.1rem);
  line-height: 1.25;
  color: var(--silver);
}

.page-faq .faq-help__lede {
  margin: 0 0 1.3rem;
  max-width: 42ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--moon);
}

.page-faq .faq-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem .8rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__key {
  flex: none;
  width: 100%;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: .06em;
  color: var(--silver);
  word-break: break-all;
}

.page-faq .copy-btn {
  font-size: .78rem;
}

.page-faq .faq-help__note {
  margin: 1.1rem 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__more {
  margin: .8rem 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__more a {
  color: var(--moon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__more a:hover {
  color: var(--gold);
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-faq .faq-compare {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-item__body {
    padding-left: 3rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 5.4rem;
  }

  .page-faq .faq-toc__list {
    display: grid;
    overflow: visible;
  }

  .page-faq .faq-toc__list a {
    display: flex;
    justify-content: space-between;
    padding: .6rem .2rem;
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
    transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
  }

  .page-faq .faq-toc__list a:hover,
  .page-faq .faq-toc__list a:focus-visible {
    padding-left: .5rem;
  }

  .page-faq .faq-toc__count {
    display: inline;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (max-width: 600px) {
  .page-faq .faq-item__q {
    padding: .9rem .95rem;
    gap: .6rem;
  }

  .page-faq .faq-item__num {
    display: none;
  }

  .page-faq .faq-item__body {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-faq .faq-serial span {
    width: 20px;
    height: 26px;
    font-size: .68rem;
  }

  .page-faq .faq-group__note {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}