.page-faq {
  --faq-rail-w: 216px;
  --faq-text: rgba(242, 233, 216, 0.94);
  --faq-text-dim: rgba(242, 233, 216, 0.72);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(16px, 2.5vw, 26px);
}

.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__copy {
  min-width: 0;
  max-width: 44rem;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.4vw, 3.3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.012em;
  margin: 0.32em 0 0.5em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 1.25em;
  font-size: clamp(0.98rem, 0.5vw + 0.86rem, 1.06rem);
  line-height: 1.8;
  color: var(--faq-text-dim);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__media {
  margin: 0;
  overflow: hidden;
}

.page-faq .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 版本速查面板 */
.page-faq .faq-version {
  margin-top: clamp(24px, 3.5vw, 38px);
  display: grid;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-850);
  border: 2px solid var(--ink-900);
  border-left: 6px solid var(--cyan);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-version__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.page-faq .faq-version__head .mono {
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-faq .faq-version__hint {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--faq-text-dim);
}

.page-faq .faq-version__entries {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
}

.page-faq .faq-version__entries li {
  padding: 10px 8px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: var(--cyan-soft);
  border: 1px solid var(--line-strong);
}

/* 轨道 + 内容两栏 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.5vw, 44px);
  margin-top: clamp(30px, 5vw, 54px);
}

.page-faq .faq-layout > * {
  min-width: 0;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--stone);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  font-size: 0.82rem;
  color: var(--faq-text-dim);
  text-decoration: none;
  border: 1px solid var(--line);
  border-left: 2px solid var(--moss);
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--cyan);
  background: var(--cyan-soft);
  border-left-color: var(--cyan);
}

.page-faq .faq-rail__list .numeral {
  color: var(--amber);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

/* 章节 */
.page-faq .faq-chapter + .faq-chapter {
  margin-top: clamp(30px, 4.5vw, 52px);
  padding-top: clamp(24px, 3.5vw, 34px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-chapter__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 4px 14px;
  margin-bottom: 18px;
}

.page-faq .faq-chapter__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.page-faq .faq-chapter h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.3vw, 1.62rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-chapter__intro {
  margin: 0;
  grid-column: 2;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--faq-text-dim);
}

.page-faq .faq-figure {
  margin: 0 0 18px;
  overflow: hidden;
}

/* 手风琴 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  box-shadow: 3px 3px 0 rgba(6, 18, 15, 0.72);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-item[open] {
  background: var(--ink-800);
  border-left-color: var(--cyan);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--faq-text);
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .faq-item__summary::after {
  content: "+";
  flex: none;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "−";
}

.page-faq .faq-item__num {
  flex: none;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-item__q {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item__a {
  padding: 2px 16px 18px;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--faq-text-dim);
}

.page-faq .faq-item__a p + p {
  margin-top: 0.7em;
}

.page-faq .faq-item__a strong {
  color: var(--paper);
  font-weight: 600;
}

/* 联系前排查 */
.page-faq .faq-contact {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
  color: var(--ink-800);
  border: 2px solid var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  font-weight: 800;
  color: var(--ink-800);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--clay);
}

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

.page-faq .faq-contact__steps li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .faq-contact__step-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--paper);
  background: var(--ink-800);
}

.page-faq .faq-contact__channels {
  display: grid;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid rgba(11, 31, 26, 0.18);
}

.page-faq .faq-contact__line {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 0.93rem;
}

.page-faq .faq-contact__line .mono {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-faq .faq-contact__line a {
  color: var(--ink-800);
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
  word-break: break-all;
}

.page-faq .faq-contact__line a:hover,
.page-faq .faq-contact__line a:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

.page-faq .faq-contact__note {
  margin: 6px 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(11, 31, 26, 0.72);
}

/* 收尾 */
.page-faq .faq-next {
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(135deg, var(--ink-700) 0%, var(--ink-850) 62%);
  border: 2px solid var(--ink-900);
  border-top: 4px solid var(--amber);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-next h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-next p {
  margin: 0 0 18px;
  max-width: 52rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--faq-text-dim);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
  }
}

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

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    padding-right: 14px;
    border-right: 1px solid var(--line-soft);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-rail__list a {
    border: 0;
    border-left: 2px solid transparent;
    padding: 9px 10px;
    font-size: 0.88rem;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .faq-item__summary {
    padding: 16px 20px;
  }

  .page-faq .faq-item__a {
    padding: 2px 20px 20px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__list a,
  .page-faq .faq-item {
    transition: none;
  }
}
<<<END>>>