.page-faq {
  background: var(--paper);
  color: var(--ink);
}

.page-faq .crumb {
  padding-top: 22px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin: 18px 0 0;
  padding: 26px 20px 34px;
  border: 1px solid var(--grid);
  background:
    repeating-linear-gradient(to bottom, transparent 0 31px, rgba(198, 204, 199, 0.28) 31px 32px),
    var(--card);
}

.page-faq .faq-hero__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--green);
}

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

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 15em;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .faq-hero__tag {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-hero__dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  background: var(--amber);
}

@media (min-width: 780px) {
  .page-faq .faq-hero {
    padding: 36px 40px 46px;
  }
  .page-faq .faq-hero__tag {
    max-width: 42em;
  }
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding: 36px 0 40px;
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    padding: 52px 0 20px;
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: 84px;
  }
}

/* ---------- 左侧类别索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list li + li {
  border-top: 1px solid var(--grid);
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: baseline;
  padding: 12px 0;
  text-decoration: none;
  color: var(--ink);
  font-size: 15px;
  transition: color 140ms ease-out;
}

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

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

.page-faq .faq-index__label {
  line-height: 1.5;
}

.page-faq .faq-index__count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  opacity: 0.65;
}

/* ---------- 右侧问题流 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-sec {
  margin-bottom: 52px;
  scroll-margin-top: 90px;
}

.page-faq .faq-sec:last-child {
  margin-bottom: 24px;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 6px 10px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-sec__num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--green);
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color 160ms ease-out;
}

.page-faq .faq-sec:target .faq-sec__head h2 {
  color: var(--green);
}

.page-faq .faq-sec__sub {
  grid-column: 2;
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 36em;
}

.page-faq .faq-sec__note {
  margin: 18px 0 0;
  padding-left: 34px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .faq-sec__note a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--grid);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: baseline;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink);
  transition: color 140ms ease-out;
}

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

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

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

.page-faq .faq-item summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--green);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item[open] summary {
  color: var(--green);
}

.page-faq .faq-item__q {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--green);
}

.page-faq .faq-item__body {
  padding: 0 0 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
  animation: faq-reveal 180ms ease-out;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 36em;
}

.page-faq .faq-item__body a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
}

@media (min-width: 620px) {
  .page-faq .faq-item__body {
    padding-left: 34px;
  }
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }
}

/* ---------- 旧版章节图文分栏 ---------- */
.page-faq .faq-sec__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-top: 8px;
}

@media (min-width: 860px) {
  .page-faq .faq-sec__split {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 32px;
    align-items: start;
  }
}

.page-faq .faq-fig {
  margin: 0;
  border: 1px solid var(--grid);
  background: var(--card);
}

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

.page-faq .faq-fig__cap {
  padding: 10px 12px;
  border-top: 1px solid var(--grid);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ---------- 通栏图 ---------- */
.page-faq .faq-banner {
  position: relative;
  margin: 22px 0 0;
  border: 1px solid var(--grid);
  overflow: hidden;
  background: var(--ink);
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 170px;
  object-fit: cover;
  opacity: 0.78;
}

.page-faq .faq-banner__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 14px;
  background: var(--whistle);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

@media (min-width: 700px) {
  .page-faq .faq-banner img {
    height: 240px;
  }
}

/* ---------- 四步排查 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-faq .faq-steps li {
  display: grid;
  gap: 6px;
  padding: 16px 14px 18px;
  background: var(--card);
  border-top: 3px solid var(--green);
}

.page-faq .faq-steps li:nth-child(2) {
  border-top-color: var(--green-bright);
}

.page-faq .faq-steps li:nth-child(3) {
  border-top-color: var(--amber);
}

.page-faq .faq-steps li:nth-child(4) {
  border-top-color: var(--whistle);
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-faq .faq-steps__n {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--green);
}

.page-faq .faq-steps__t {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-steps__d {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-steps__rail {
  display: block;
  width: 100%;
  height: 10px;
  margin-top: -1px;
  color: var(--grid);
}

/* ---------- 末尾联络卡 ---------- */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin: 8px 0 64px;
  padding: 30px 20px 34px;
  background: var(--green-deep);
  border-top: 4px solid var(--whistle);
  color: var(--on-dark);
}

@media (min-width: 900px) {
  .page-faq .faq-help {
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    padding: 44px 40px 48px;
    margin-bottom: 76px;
  }
}

.page-faq .faq-help__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--whistle);
}

.page-faq .faq-help__eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--whistle);
}

.page-faq .faq-help h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.38;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 16em;
}

.page-faq .faq-help__body {
  margin: 16px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-help__ghost {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border: 1px solid rgba(245, 242, 234, 0.45);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 140ms ease-out, color 140ms ease-out;
}

.page-faq .faq-help__ghost:hover,
.page-faq .faq-help__ghost:focus-visible {
  border-color: var(--whistle);
  color: var(--whistle);
}

.page-faq .faq-help__meta {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-help__meta > div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(245, 242, 234, 0.18);
}

.page-faq .faq-help__meta dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--on-dark-dim);
}

.page-faq .faq-help__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}
<<<END>>>