.page-faq {
  --faq-num: clamp(28px, 4.2vw, 46px);
  --faq-gap: clamp(22px, 3.4vw, 46px);
  --faq-index-w: 214px;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(38px, 6.5vw, 84px) 0 clamp(34px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(108, 255, 122, .10), transparent 58%),
    repeating-linear-gradient(90deg, transparent 0 77px, rgba(42, 82, 71, .30) 77px 78px),
    var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: 0;
  width: min(46vw, 520px);
  height: 100%;
  background: linear-gradient(135deg, rgba(43, 227, 107, .14), rgba(192, 107, 255, .06) 55%, transparent 78%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-hero-main .h1 {
  font-size: clamp(31px, 5.2vw, 62px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: .42em 0 .38em;
  max-width: 15em;
}

.page-faq .faq-hero-main .lede {
  max-width: 44em;
  color: var(--muted);
}

.page-faq .faq-chips {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  background: rgba(27, 74, 62, .35);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-chip .mono {
  font-size: 11px;
  color: var(--green);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--green);
  background: rgba(108, 255, 122, .10);
  transform: translateY(-1px);
}

.page-faq .faq-chip:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 3px;
}

.page-faq .faq-hero-card {
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius);
}

.page-faq .faq-hero-list {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-hero-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-faq .faq-hero-list .mono {
  font-size: 12px;
  color: var(--amber);
  padding-top: 3px;
}

.page-faq .faq-hero-link {
  display: inline-block;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-hero-link:hover,
.page-faq .faq-hero-link:focus-visible {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-faq .faq-hero-link:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 3px;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 4.6vw, 60px) 0 clamp(40px, 6vw, 80px);
  background: var(--ink);
}

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-index {
  padding: 18px;
  border-radius: var(--radius);
}

.page-faq .faq-index-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 10px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 2px;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-index-link .mono {
  font-size: 11px;
  color: var(--line);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--text);
  background: rgba(108, 255, 122, .07);
  border-left-color: var(--green);
}

.page-faq .faq-index-link:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

.page-faq .faq-index-link:hover .mono,
.page-faq .faq-index-link:focus-visible .mono {
  color: var(--green);
}

/* ---------- 速查筛选 ---------- */
.page-faq .faq-quick {
  padding-bottom: clamp(24px, 3.6vw, 40px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-faq .faq-quick-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 18px;
  margin-bottom: 16px;
}

.page-faq .faq-quick-note {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-quick .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .faq-quick .filter-btn[aria-pressed="true"] {
  border-color: var(--green);
  color: var(--ink);
  background: var(--green);
}

.page-faq .faq-quicklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-faq .quick-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 6px;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .quick-item:hover,
.page-faq .quick-item:focus-visible {
  background: rgba(108, 255, 122, .06);
  padding-left: 12px;
}

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

.page-faq .quick-item[hidden] {
  display: none;
}

.page-faq .quick-no {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .05em;
}

.page-faq .quick-txt {
  overflow-wrap: anywhere;
  line-height: 1.5;
}

.page-faq .quick-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  padding: 3px 7px;
  border-radius: 2px;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .quick-tag--blue { background: var(--blue); }
.page-faq .quick-tag--amber { background: var(--amber); }
.page-faq .quick-tag--purple { background: var(--purple); }
.page-faq .quick-tag--orange { background: var(--orange); }

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-top: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line);
  margin-top: clamp(32px, 4.6vw, 54px);
  scroll-margin-top: 96px;
}

.page-faq .faq-sec:first-of-type {
  margin-top: 0;
}

.page-faq .faq-sec-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-sec-num {
  font-size: var(--faq-num);
  line-height: 1;
  font-weight: 700;
  letter-spacing: .02em;
  color: rgba(108, 255, 122, .18);
  -webkit-text-stroke: 1px rgba(108, 255, 122, .55);
}

.page-faq .faq-sec-lede {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
}

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

.page-faq .faq-figcap {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 16px;
  align-items: start;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  transition: background .18s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(27, 74, 62, .35);
}

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

.page-faq .faq-q-no {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--green);
  padding-top: 4px;
}

.page-faq .faq-q-text {
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.page-faq .faq-q-mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-q-mark::before,
.page-faq .faq-q-mark::after {
  content: "";
  position: absolute;
  background: var(--green);
  transition: transform .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-q-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-q-mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-q-no {
  color: var(--amber);
}

.page-faq .faq-a {
  margin: 0 4px 18px 8px;
  padding: 2px 0 14px 14px;
  border-left: 2px solid var(--line);
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-item[open] .faq-a {
  border-left-color: rgba(108, 255, 122, .55);
}

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

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

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

/* ---------- 路径卡 ---------- */
.page-faq .path-grid {
  display: grid;
  gap: 14px;
}

.page-faq .path-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 18px;
  background: var(--content);
  border: 1px solid var(--line);
  border-top: 2px solid var(--green);
  border-radius: var(--radius);
}

.page-faq .path-card--green { border-top-color: var(--green); }
.page-faq .path-card--amber { border-top-color: var(--amber); }
.page-faq .path-card--cyan { border-top-color: var(--cyan); }

.page-faq .path-card-no {
  margin: 0;
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-faq .path-card .h4 {
  margin: 0;
  font-size: 18px;
}

.page-faq .path-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.page-faq .path-chip {
  padding: 4px 8px;
  font-size: 11px;
  color: var(--muted);
  background: rgba(4, 18, 15, .5);
  border: 1px solid var(--line);
  border-radius: 2px;
  white-space: nowrap;
}

.page-faq .path-chip--end {
  color: var(--ink);
  background: var(--green);
  border-color: var(--green);
}

.page-faq .path-chip--amber {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .path-chip--cyan {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .path-arrow {
  font-size: 12px;
  color: var(--line);
}

.page-faq .path-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 时间轴 ---------- */
.page-faq .faq-tl-scale {
  display: block;
  width: 100%;
  height: 10px;
  margin-bottom: 18px;
}

.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}

.page-faq .faq-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--green) 55%, var(--line) 100%);
}

.page-faq .tl-item {
  position: relative;
  padding-left: 30px;
}

.page-faq .tl-ver {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--green);
}

.page-faq .tl-ver::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--green);
  box-shadow: 0 0 0 4px rgba(43, 227, 107, .08);
}

.page-faq .tl-body {
  padding: 12px 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.page-faq .tl-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .tl-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .tl-item--current .tl-body {
  background: var(--content);
  border-color: rgba(108, 255, 122, .55);
}

.page-faq .tl-item--current .tl-ver {
  color: var(--amber);
}

.page-faq .tl-item--current .tl-ver::before {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 200, 87, .12);
}

/* ---------- 联系前准备 ---------- */
.page-faq .prep-grid {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-faq .prep-card {
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: 2px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .prep-card:hover {
  border-color: rgba(108, 255, 122, .5);
  background: rgba(27, 74, 62, .28);
}

.page-faq .prep-num {
  margin: 0 0 8px;
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-faq .prep-card .h4 {
  margin: 0 0 6px;
  font-size: 16px;
}

.page-faq .prep-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-contact {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: var(--radius);
}

.page-faq .faq-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.page-faq .faq-contact .contact-list li {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-contact .meta-value {
  overflow-wrap: anywhere;
  color: var(--text);
}

.page-faq .faq-contact-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-contact .btn {
  justify-self: start;
}

/* ---------- 结尾 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 12px;
  margin-top: clamp(34px, 4.8vw, 58px);
  padding: clamp(24px, 3.6vw, 44px);
  background:
    linear-gradient(135deg, rgba(43, 227, 107, .12), rgba(4, 18, 15, 0) 62%),
    var(--ink-2);
  border-top: 2px solid var(--green);
}

.page-faq .faq-cta .h2 {
  margin: 0;
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quicklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(18px, 3vw, 32px);
  }

  .page-faq .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-sec-head {
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 20px;
    row-gap: 6px;
    align-items: start;
  }

  .page-faq .faq-sec-num {
    grid-row: 1 / span 2;
    grid-column: 1;
  }

  .page-faq .faq-sec-head .h2 {
    grid-column: 2;
    margin: 0;
  }

  .page-faq .faq-sec-lede {
    grid-column: 2;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .path-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index-nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .faq-index-link {
    display: flex;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-hero {
    background:
      radial-gradient(120% 80% at 90% 0%, rgba(108, 255, 122, .10), transparent 62%),
      var(--ink);
  }

  .page-faq .faq-hero::after {
    width: 62vw;
    opacity: .7;
  }

  .page-faq .faq-a {
    margin-left: 2px;
    padding-left: 12px;
    font-size: 14px;
  }

  .page-faq .quick-item {
    grid-template-columns: auto minmax(0, 1fr);
    row-gap: 4px;
  }

  .page-faq .quick-tag {
    grid-column: 2;
    justify-self: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .quick-item,
  .page-faq .prep-card,
  .page-faq .faq-q-mark::before,
  .page-faq .faq-q-mark::after,
  .page-faq .faq-a,
  .page-faq .faq-item summary {
    transition: none;
  }

  .page-faq .faq-chip:hover,
  .page-faq .quick-item:hover {
    transform: none;
  }
}
<<<END>>>