.page-faq {
  --faq-rule: 1px solid var(--grid);
  --faq-gold-rule: 1px solid rgba(216, 180, 90, 0.24);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 6vw, 56px) 0 clamp(26px, 4.5vw, 52px);
  border-bottom: var(--faq-rule);
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(59, 199, 245, 0.12), transparent 58%),
    radial-gradient(90% 80% at -12% 112%, rgba(216, 180, 90, 0.09), transparent 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 180, 90, 0.55), transparent);
  pointer-events: none;
}

.page-faq .breadcrumb {
  margin-bottom: 16px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ink-2);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid);
}

.page-faq .breadcrumb-list a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .breadcrumb-list a:hover,
.page-faq .breadcrumb-list a:focus-visible {
  color: var(--gold-hi);
  border-bottom-color: rgba(216, 180, 90, 0.5);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 7vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-shadow: 0 0 26px rgba(216, 180, 90, 0.18);
}

.page-faq .faq-lead {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 0;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: var(--faq-rule);
}

.page-faq .faq-meta__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 128px;
  padding-right: 22px;
  margin-right: 22px;
  border-right: var(--faq-rule);
}

.page-faq .faq-meta__item:last-child {
  border-right: 0;
  padding-right: 0;
  margin-right: 0;
}

.page-faq .faq-meta__k {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-meta__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--gold);
  text-shadow: 0 0 1px rgba(216, 180, 90, 0.6);
}

/* ---------- 区块通用 ---------- */
.page-faq .section {
  padding-top: clamp(40px, 6.5vw, 92px);
  padding-bottom: clamp(36px, 6vw, 80px);
}

.page-faq .section-head {
  max-width: 72ch;
}

.page-faq .section-title {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .section-note {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 入口分流 ---------- */
.page-faq .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}

.page-faq .entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 22px 20px;
  background: var(--panel);
  border: var(--faq-rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .entry-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(216, 180, 90, 0));
}

.page-faq .entry-card:hover {
  border-color: rgba(216, 180, 90, 0.34);
  background: var(--raised);
}

.page-faq .entry-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-faq .entry-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .entry-card__crit {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .entry-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--grid);
  font-size: 13px;
  color: var(--ink-2);
}

.page-faq .entry-media {
  margin-top: 26px;
}

.page-faq .entry-media img,
.page-faq .qa-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 问答布局 ---------- */
.page-faq .qa-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 28px;
}

.page-faq .qa-index {
  padding: 16px 16px 14px;
  border: var(--faq-rule);
  border-radius: var(--r-md);
  background: rgba(19, 28, 40, 0.6);
}

.page-faq .qa-index__list {
  display: flex;
  flex-direction: row;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
}

.page-faq .qa-index__list > li {
  flex: 0 0 auto;
}

.page-faq .qa-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  white-space: nowrap;
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa-index__link:hover,
.page-faq .qa-index__link:focus-visible {
  color: var(--gold-hi);
  border-color: rgba(216, 180, 90, 0.42);
  background: rgba(216, 180, 90, 0.07);
}

.page-faq .qa-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .qa-groups {
  display: flex;
  flex-direction: column;
  gap: clamp(38px, 6vw, 74px);
  min-width: 0;
}

.page-faq .qa-group {
  scroll-margin-top: 120px;
  min-width: 0;
}

.page-faq .qa-group + .qa-group {
  border-top: var(--faq-gold-rule);
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .qa-group__head {
  position: relative;
  display: grid;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: var(--faq-rule);
}

.page-faq .qa-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 74px;
  height: 1px;
  background: var(--gold);
}

.page-faq .qa-group__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.45rem, 3.6vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .qa-group__note {
  margin: 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .qa-group__foot {
  margin: 20px 0 0;
  max-width: 68ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 手风琴 ---------- */
.page-faq .accordion {
  margin-top: 18px;
}

.page-faq .accordion-item {
  border-bottom: var(--faq-rule);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 2px;
  text-align: left;
}

.page-faq .accordion-index {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .accordion-title {
  font-size: clamp(15px, 1.8vw, 16.5px);
  line-height: 1.65;
  color: var(--ink);
}

.page-faq .accordion-mark {
  flex: 0 0 auto;
  margin-left: auto;
}

.page-faq .accordion-trigger:hover .accordion-title,
.page-faq .accordion-trigger:focus-visible .accordion-title {
  color: var(--gold-hi);
}

.page-faq .accordion-body {
  padding: 0 2px 22px 34px;
}

.page-faq .accordion-body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

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

.page-faq .accordion-body ol {
  margin: 0 0 14px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .accordion-body ol li {
  margin-bottom: 6px;
}

.page-faq .accordion-body a,
.page-faq .qa-group__foot a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 199, 245, 0.36);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .accordion-body a:hover,
.page-faq .qa-group__foot a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .qa-tools {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

.page-faq .qa-copy {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .qa-copy:hover,
.page-faq .qa-copy:focus-visible {
  color: var(--gold-hi);
  border-color: rgba(216, 180, 90, 0.5);
}

/* ---------- 设备区配图 ---------- */
.page-faq .qa-figure {
  margin: 26px 0 0;
}

/* ---------- 术语 table ---------- */
.page-faq .terms-group .table-wrap {
  margin-top: 20px;
  overflow-x: auto;
}

.page-faq .terms-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .terms-table caption {
  padding-bottom: 12px;
  text-align: left;
}

.page-faq .terms-table th,
.page-faq .terms-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--faq-rule);
  line-height: 1.7;
}

.page-faq .terms-table thead th {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-2);
  background: rgba(19, 28, 40, 0.5);
}

.page-faq .terms-table tbody th.term-key {
  font-weight: 400;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .terms-table td[data-type="num"] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  white-space: nowrap;
}

.page-faq .terms-table td:last-child {
  color: var(--ink-2);
}

.page-faq .terms-table tbody tr:hover th.term-key,
.page-faq .terms-table tbody tr:hover td:last-child {
  color: var(--ink);
}

/* ---------- 术语悬停 ---------- */
.page-faq .term {
  text-decoration: none;
  border-bottom: 1px dotted rgba(216, 180, 90, 0.7);
  cursor: help;
  color: inherit;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .term:hover,
.page-faq .term:focus-visible {
  color: var(--gold-hi);
  border-bottom-color: var(--gold-hi);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .accordion-body {
    padding-left: 44px;
  }
}

@media (min-width: 980px) {
  .page-faq .qa-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .qa-index {
    position: sticky;
    top: 108px;
    padding: 18px 16px 18px;
  }

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

  .page-faq .qa-index__list > li {
    flex: 0 0 auto;
  }

  .page-faq .qa-index__link {
    border-radius: var(--r-sm);
    white-space: normal;
  }

  .page-faq .qa-figure {
    max-width: 620px;
  }
}

@media (min-width: 1180px) {
  .page-faq .qa-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 72px;
  }

  .page-faq .qa-group__head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-faq .qa-group__kicker {
    grid-column: 1 / -1;
  }

  .page-faq .qa-group__note {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .entry-card,
  .page-faq .qa-index__link,
  .page-faq .qa-copy,
  .page-faq .term {
    transition: none;
  }
}