.page-faq {
  --faq-radius: 3px;
  --faq-flow: clamp(34px, 5vw, 72px);
  --faq-ink-soft: rgba(34, 26, 20, 0.82);
  --faq-ink-mute: rgba(34, 26, 20, 0.6);
  background: var(--paper);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(30px, 5vw, 60px) 0 clamp(42px, 6vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -20%;
  width: min(780px, 82%);
  height: 168%;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(152deg, rgba(198, 242, 78, 0.17) 0%, rgba(198, 242, 78, 0.04) 40%, transparent 64%),
    linear-gradient(338deg, rgba(255, 90, 54, 0.14) 0%, transparent 58%);
  clip-path: polygon(36% 0%, 100% 0%, 100% 100%, 0% 76%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  opacity: 0.45;
  background: repeating-linear-gradient(90deg, var(--amber) 0 2px, transparent 2px 26px);
}

.page-faq .faq-hero__crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(26px, 4.5vw, 50px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-hero__crumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-faq .faq-hero__crumbs a:hover {
  color: var(--lime);
}

.page-faq .faq-hero__crumbs [aria-current] {
  color: var(--paper);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
  color: var(--paper);
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 300;
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 40ch;
  color: rgba(244, 239, 230, 0.78);
  line-height: 1.9;
}

.page-faq .faq-hero__panel {
  align-self: end;
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
}

.page-faq .faq-hero__stats dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-hero__stats dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding: var(--faq-flow) 0 clamp(48px, 7vw, 100px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
}

@media (min-width: 900px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 78px);
    align-items: start;
  }
}

/* ---------- 左侧目录轨道 ---------- */
.page-faq .faq-index {
  background: var(--ink);
  border-radius: var(--faq-radius);
  padding: 16px 14px 12px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line-dark);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-index__list a .data {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: 30px;
    padding: 22px 16px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-index__list a {
    white-space: normal;
    border: 0;
    border-left: 2px solid transparent;
    padding: 11px 10px 11px 14px;
    font-size: 14.5px;
  }

  .page-faq .faq-index__list a:hover {
    border-left-color: var(--lime);
    background: rgba(198, 242, 78, 0.07);
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 26px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(46px, 6vw, 88px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
}

.page-faq .faq-group__no {
  grid-column: 1;
  grid-row: 1 / 4;
  padding-top: 0.5em;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--ember);
}

.page-faq .faq-group__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  letter-spacing: 0.06em;
}

.page-faq .faq-group__sub {
  grid-column: 2;
  grid-row: 2;
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-mute);
}

.page-faq .faq-group__meta {
  grid-column: 2;
  grid-row: 3;
  margin: 10px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-group__rule {
  height: 1px;
  margin: 16px 0 clamp(20px, 2.6vw, 32px);
  border: 0;
  background: linear-gradient(90deg, var(--ember) 0 34px, var(--line-paper) 34px 100%);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 2.6vw, 32px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-paper);
  background: var(--paper-2);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--faq-ink-mute);
}

@media (min-width: 680px) {
  .page-faq .faq-figure--side {
    float: right;
    width: min(290px, 46%);
    margin: 4px 0 14px 26px;
  }
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line-paper);
}

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 17px 6px;
  cursor: pointer;
  list-style: none;
  transition: background var(--t-fast) var(--ease);
}

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

.page-faq .faq-item > summary:hover {
  background: rgba(198, 242, 78, 0.13);
}

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

.page-faq .faq-item__no {
  padding-top: 0.42em;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-item__q {
  font-size: clamp(16px, 1.6vw, 17.5px);
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-item > summary::after {
  content: "+";
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--text);
  background: var(--paper-2);
  border: 1px solid var(--line-paper);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  background: var(--lime);
  border-color: var(--ink);
  color: var(--ink);
}

.page-faq .faq-answer {
  padding: 0 6px 22px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--faq-ink-soft);
}

.page-faq .faq-answer::after {
  content: "";
  display: block;
  clear: both;
}

.page-faq .faq-answer p {
  margin: 0 0 0.9em;
}

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

@media (min-width: 640px) {
  .page-faq .faq-answer {
    padding-left: 44px;
  }
}

.page-faq .faq-item[open] > .faq-answer {
  animation: faq-answer-in var(--t-mid) var(--ease) both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-more {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-more::after {
  content: " →";
  color: var(--ember);
}

.page-faq .faq-more:hover {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 底部对接带 ---------- */
.page-faq .faq-cta {
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-cta__title {
  margin: 12px 0 10px;
  color: var(--paper);
  letter-spacing: 0.06em;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 54ch;
  line-height: 1.85;
  color: var(--mist);
}

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

@media (min-width: 800px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
    gap: 52px;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] > .faq-answer {
    animation: none;
  }

  .page-faq .faq-index__list a,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-more {
    transition: none;
  }
}
<<<END>>>