.page-faq {
  --faq-gap: clamp(20px, 4vw, 44px);
  --faq-panel: rgba(15, 26, 48, 0.62);
  --faq-panel-open: rgba(20, 52, 58, 0.46);
  --faq-radius: 16px;
  color: var(--silver);
  font-family: var(--font-sans);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  padding-top: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-faq .faq-hero-copy h1 {
  margin: 12px 0 0;
  font-size: clamp(2rem, 6.4vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
  text-wrap: balance;
}

.page-faq .faq-hero-copy .lede {
  margin-top: 18px;
  max-width: 54ch;
  color: var(--silver);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-faq .faq-hero-points li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 0.95rem;
  color: var(--silver);
}

.page-faq .faq-point-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 2px solid var(--line);
  border-radius: var(--faq-radius);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .media-caption {
  display: block;
  padding: 12px 16px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
  background: rgba(6, 10, 24, 0.5);
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-quick {
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-faq .faq-quick .section-head h2 {
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 24px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(15, 26, 48, 0.6);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--line-strong);
  color: var(--cyan);
  background: rgba(59, 227, 208, 0.08);
}

.page-faq .faq-quick-grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-quick-card {
  display: block;
  padding: 22px 20px;
  text-decoration: none;
  color: inherit;
  background: var(--faq-panel);
  border-radius: var(--faq-radius);
}

.page-faq .faq-quick-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  display: block;
}

.page-faq .faq-quick-card h3 {
  margin: 10px 0 8px;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--white);
  font-weight: 800;
}

.page-faq .faq-quick-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-quick-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-quick-card:hover .faq-quick-link,
.page-faq .faq-quick-card:focus-visible .faq-quick-link {
  color: var(--cyan);
}

/* ---------- 数据条带 ---------- */
.page-faq .faq-band {
  margin: clamp(22px, 4vw, 44px) 0;
  background: rgba(20, 52, 58, 0.5);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-band .data-band-num {
  color: var(--cyan);
  font-family: var(--font-mono);
}

/* ---------- 主体 + 目录 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-chapter {
  padding-top: clamp(10px, 2vw, 20px);
  scroll-margin-top: 110px;
}

.page-faq .faq-chapter + .faq-chapter,
.page-faq .faq-mid-media + .faq-chapter {
  margin-top: clamp(36px, 6vw, 72px);
}

.page-faq .faq-chapter-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.page-faq .faq-chapter-head .chapter-num {
  grid-row: span 2;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--line-strong);
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1;
}

.page-faq .faq-chapter-head h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--white);
  font-weight: 900;
}

.page-faq .faq-chapter-head .lede {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 0.95rem;
  max-width: 58ch;
  color: var(--mist);
}

.page-faq .faq-mid-media {
  margin: clamp(30px, 5vw, 56px) 0 0;
  border: 2px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  counter-reset: faq-q;
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  counter-increment: faq-q;
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: 14px;
  background: var(--faq-panel);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: var(--faq-panel-open);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  list-style: none;
  cursor: pointer;
  padding: 17px 48px 17px 18px;
  color: var(--white);
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.55;
}

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

.page-faq .faq-item summary::before {
  content: counter(faq-q, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--mist);
  padding-top: 0.3em;
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--gold);
}

.page-faq .faq-item summary:hover {
  color: var(--cyan);
}

.page-faq .faq-answer {
  padding: 0 18px 20px 48px;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

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

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

.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 20px;
  color: var(--silver);
}

.page-faq .faq-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 2px;
  background: var(--cyan-deep);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(28px, 4vw, 44px);
  padding: 24px 20px;
  border: 2px solid var(--line-strong);
  border-radius: var(--faq-radius);
  background: linear-gradient(160deg, rgba(20, 52, 58, 0.6), rgba(15, 26, 48, 0.85));
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact-copy h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-faq .faq-contact-copy p {
  margin: 0 0 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact .contact-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact .contact-item {
  display: grid;
  gap: 4px;
}

.page-faq .faq-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-contact .contact-value {
  color: var(--white);
  font-size: 0.95rem;
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 18px 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 章节目录 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail .chapter-rail {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(15, 26, 48, 0.55);
  padding: 18px 16px;
}

.page-faq .faq-rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-rail .chapter-rail ul {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-rail .chapter-rail a {
  display: block;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--silver);
  font-size: 0.86rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-rail .chapter-rail a:hover {
  color: var(--cyan);
  background: rgba(59, 227, 208, 0.06);
}

.page-faq .faq-rail .chapter-rail a[aria-current] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(59, 227, 208, 0.08);
}

.page-faq .faq-rail-cta {
  width: 100%;
  justify-content: center;
}

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

  .page-faq .faq-hero-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-faq .faq-contact .contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.02fr 0.98fr;
    gap: clamp(32px, 4vw, 60px);
    align-items: center;
  }

  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-rail .chapter-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-item summary {
    font-size: 1.02rem;
    padding-right: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item,
  .page-faq .faq-rail .chapter-rail a {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>