.page-faq {
  --faq-card: linear-gradient(168deg, rgba(12, 32, 50, .95) 0%, rgba(9, 26, 41, .92) 55%, rgba(7, 21, 33, .96) 100%);
  --faq-line-soft: rgba(185, 196, 206, .14);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .faq-crumbs {
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--silver);
}

.page-faq .faq-crumbs .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-crumbs a {
  color: var(--silver);
  text-decoration: none;
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--amber);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--amber));
}

/* ---------- hero ---------- */

.page-faq .faq-hero {
  padding-block: clamp(24px, 4.4vw, 54px) clamp(16px, 3vw, 32px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-hero-title,
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.6vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 700;
  color: var(--text);
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 54ch;
  color: var(--silver);
  font-size: clamp(.98rem, .35vw + .92rem, 1.08rem);
  line-height: 1.85;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero-panel {
  position: relative;
  border: 1px solid var(--line-gold);
  border-radius: var(--r-lg);
  background: var(--faq-card);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: 0 28px 60px -36px var(--shadow);
}

.page-faq .faq-hero-panel::after {
  content: "资料速览";
  position: absolute;
  top: -11px;
  left: 22px;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
}

.page-faq .faq-panel-title {
  margin: 6px 0 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-sm);
  background: rgba(22, 53, 77, .34);
  padding: 12px;
}

.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  letter-spacing: .02em;
  color: var(--gold-soft);
  line-height: 1.1;
}

.page-faq .faq-stat-label {
  display: block;
  margin-top: 6px;
  font-size: .8rem;
  line-height: 1.5;
  color: var(--silver);
}

.page-faq .faq-panel-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: .82rem;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- section headings ---------- */

.page-faq .faq-sec-head {
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-faq .faq-sec-title {
  margin: 10px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.28rem, 2.7vw, 1.9rem);
  line-height: 1.22;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-sec-lead {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- figure ---------- */

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: 0 24px 50px -38px var(--shadow);
}

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

.page-faq .faq-figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line-soft);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--silver);
}

/* ---------- index ---------- */

.page-faq .faq-index {
  padding-block: clamp(26px, 4.6vw, 54px);
}

.page-faq .faq-index-grid {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

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

.page-faq .faq-index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--faq-line-soft);
  border-left: 3px solid rgba(215, 166, 74, .5);
  border-radius: var(--r-sm);
  background: linear-gradient(120deg, rgba(22, 53, 77, .42), rgba(7, 21, 33, .22));
  color: var(--text);
  text-decoration: none;
  transition: border-color .18s var(--ease), transform .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-left-color: var(--amber);
  border-color: var(--line-gold);
  background: linear-gradient(120deg, rgba(22, 53, 77, .62), rgba(7, 21, 33, .32));
  transform: translateX(3px);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--amber);
  line-height: 1.9;
}

.page-faq .faq-index-name {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -.01em;
}

.page-faq .faq-index-desc {
  display: block;
  margin-top: 5px;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- reader ---------- */

.page-faq .faq-reader {
  padding-block: clamp(18px, 3.4vw, 38px);
}

.page-faq .faq-reader-grid {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
}

.page-faq .faq-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line-soft);
  scrollbar-width: thin;
}

.page-faq .faq-rail-title {
  display: none;
}

.page-faq .faq-rail a {
  flex: 0 0 auto;
  padding: 7px 13px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-pill);
  background: rgba(12, 32, 50, .62);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-rail a:hover,
.page-faq .faq-rail a:focus-visible {
  color: var(--ink-900);
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-rail-top {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 7px 13px;
  border: 1px dashed var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-rail-top:hover,
.page-faq .faq-rail-top:focus-visible {
  color: var(--gold-soft);
  border-color: var(--line-gold);
}

/* ---------- question groups ---------- */

.page-faq .faq-group {
  margin-bottom: clamp(28px, 4vw, 44px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--line-gold);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-faq .faq-group-title {
  margin: 8px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.3vw, 1.55rem);
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-group-note {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  background: var(--faq-card);
  box-shadow: 0 18px 36px -32px var(--shadow);
  transition: border-color .18s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--line-gold);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 650;
  font-size: clamp(.94rem, .3vw + .9rem, 1.02rem);
  line-height: 1.6;
  color: var(--text);
  transition: color .16s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
  transform: rotate(45deg);
  transition: transform .2s var(--ease), top .2s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  top: 27px;
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--gold-soft);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

.page-faq .faq-answer {
  padding: 0 16px 16px;
  border-top: 1px solid var(--faq-line-soft);
  margin-top: 2px;
}

.page-faq .faq-answer p {
  margin: 12px 0 0;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-size: .88em;
  color: var(--gold-soft);
  word-break: break-all;
}

/* ---------- steps ---------- */

.page-faq .faq-steps {
  padding-block: clamp(28px, 4.6vw, 58px);
}

.page-faq .faq-steps-inner {
  border: 1px solid var(--line-gold);
  border-radius: var(--r-lg);
  background: linear-gradient(152deg, rgba(22, 53, 77, .55), rgba(7, 21, 33, .72) 72%);
  padding: clamp(20px, 3.4vw, 40px);
}

.page-faq .faq-steps-grid {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  align-items: start;
  margin-top: 22px;
}

.page-faq .faq-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  padding: 16px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-md);
  background: rgba(7, 21, 33, .58);
}

.page-faq .faq-step-num {
  grid-row: 1 / span 3;
  align-self: start;
  padding: 4px 8px;
  border-radius: var(--r-sm);
  background: var(--amber);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  line-height: 1.25;
}

.page-faq .faq-step-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-step-text {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-copy {
  justify-self: start;
  margin-top: 6px;
  padding: 6px 12px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-pill);
  background: rgba(22, 53, 77, .6);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  color: var(--ink-900);
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq .faq-copy[data-copied="true"] {
  color: var(--ink-900);
  background: var(--amber);
  border-color: var(--amber);
}

/* ---------- next ---------- */

.page-faq .faq-next {
  padding-block: clamp(22px, 3.6vw, 48px) 0;
}

.page-faq .faq-next-inner {
  display: grid;
  gap: 18px;
  border-top: 1px solid var(--line-gold);
  padding-top: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- responsive ---------- */

@media (min-width: 620px) {
  .page-faq .faq-index-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.14fr) minmax(0, .86fr);
  }

  .page-faq .faq-index-grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }

  .page-faq .faq-steps-grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
  }

  .page-faq .faq-next-inner {
    grid-template-columns: minmax(0, 1.1fr) auto;
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-reader-grid {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    gap: 2px;
    padding: 0 0 0 14px;
    border-bottom: 0;
    border-left: 1px solid var(--line-gold);
  }

  .page-faq .faq-rail-title {
    display: block;
    margin: 0 0 10px;
    font-family: var(--font-mono);
    font-size: .72rem;
    letter-spacing: .14em;
    color: var(--gold);
  }

  .page-faq .faq-rail a {
    padding: 7px 0;
    border: 0;
    border-radius: 0;
    background: none;
    font-size: .8rem;
    letter-spacing: .02em;
  }

  .page-faq .faq-rail a:hover,
  .page-faq .faq-rail a:focus-visible {
    color: var(--amber);
    background: none;
  }

  .page-faq .faq-rail-top {
    margin: 16px 0 0;
    align-self: flex-start;
    border-style: solid;
    border-color: var(--faq-line-soft);
    background: rgba(12, 32, 50, .55);
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after,
  .page-faq .faq-copy,
  .page-faq .faq-rail a {
    transition: none;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    transform: none;
  }
}
<<<END>>>