.page-faq {
  --faq-side: 264px;
  background: var(--hx-void);
  color: var(--hx-paper);
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 40px) clamp(44px, 6vw, 80px);
  background:
    radial-gradient(circle at 84% 10%, rgba(61, 242, 192, .13), transparent 52%),
    radial-gradient(circle at 6% 92%, rgba(110, 155, 255, .12), transparent 56%),
    var(--hx-void);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 38%;
  right: -14%;
  top: 34%;
  bottom: -30%;
  background: linear-gradient(118deg, rgba(24, 35, 56, .95), rgba(6, 10, 20, 0) 72%);
  transform: skewY(-7deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__title {
  font-family: var(--hx-font-display);
  font-weight: 800;
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: .98;
  letter-spacing: -.02em;
  margin: 12px 0 0;
  max-width: 15ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--hx-mist);
}

.page-faq .faq-hero__meta {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--hx-amber);
  font-family: var(--hx-font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--hx-dim);
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 1px solid var(--hx-line);
  pointer-events: none;
}

.page-faq .faq-hero__figure img {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hx-line);
  background: var(--hx-night);
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-quick-wrap {
  padding-block: 0 clamp(40px, 5vw, 64px);
  background: var(--hx-void);
}

.page-faq .faq-quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-quick__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  text-decoration: none;
  color: var(--hx-paper);
  background: linear-gradient(158deg, var(--hx-night), var(--hx-deep) 72%);
  border: 1px solid var(--hx-line);
  border-left: 3px solid var(--hx-signal);
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.page-faq .faq-quick__card:nth-child(2) { border-left-color: var(--hx-track); }
.page-faq .faq-quick__card:nth-child(3) { border-left-color: var(--hx-amber); }
.page-faq .faq-quick__card:nth-child(4) { border-left-color: var(--hx-mist); }

.page-faq .faq-quick__card:hover,
.page-faq .faq-quick__card:focus-visible {
  transform: translateY(-3px);
  background: linear-gradient(158deg, var(--hx-panel), var(--hx-night) 74%);
  outline: none;
}

.page-faq .faq-quick__card:focus-visible {
  outline: 2px solid var(--hx-signal);
  outline-offset: 2px;
}

.page-faq .faq-quick__no {
  font-family: var(--hx-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--hx-signal);
}

.page-faq .faq-quick__label {
  font-family: var(--hx-font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -.01em;
  line-height: 1.15;
}

.page-faq .faq-quick__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--hx-mist);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding-block: clamp(8px, 2vw, 16px) clamp(56px, 7vw, 96px);
}

/* ---------- 目录侧栏 ---------- */
.page-faq .faq-side {
  border-top: 2px solid var(--hx-signal);
  padding-top: 14px;
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--hx-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--hx-dim);
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .faq-side__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--hx-mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--hx-paper);
  border-left-color: var(--hx-signal);
  background: rgba(61, 242, 192, .07);
  outline: none;
}

.page-faq .faq-side__link:focus-visible {
  outline: 2px solid var(--hx-signal);
  outline-offset: -2px;
}

.page-faq .faq-side__no {
  font-family: var(--hx-font-mono);
  font-size: 12px;
  color: var(--hx-signal);
}

.page-faq .faq-side__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hx-line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--hx-dim);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(26px, 3.6vw, 40px);
  border-top: 1px solid var(--hx-line);
}

.page-faq .faq-groups > .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  gap: 14px;
  align-items: baseline;
  flex-wrap: wrap;
}

.page-faq .faq-group__no {
  font-family: var(--hx-font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--hx-amber);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--hx-font-display);
  font-weight: 700;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.1;
  letter-spacing: -.01em;
}

.page-faq .faq-group__intro {
  margin: 12px 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hx-mist);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  background: var(--hx-deep);
  border: 1px solid var(--hx-line);
  border-left: 2px solid var(--hx-night);
  margin-bottom: 10px;
  transition: border-color .18s ease, background .18s ease;
}

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

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 16px 15px 14px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--hx-paper);
}

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

.page-faq .faq-item__summary:hover { color: var(--hx-signal); }

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--hx-signal);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  font-family: var(--hx-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--hx-signal);
  padding-top: 3px;
}

.page-faq .faq-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
  margin-top: 4px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--hx-amber);
  transition: transform .2s ease, opacity .2s ease;
}

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

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

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

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--hx-signal);
}

.page-faq .faq-item__answer {
  padding: 0 18px 20px;
}

.page-faq .faq-item__answer p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--hx-mist);
}

.page-faq .faq-item__answer p + p {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--hx-line);
}

/* ---------- 示意图 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 12px;
  background: var(--hx-night);
  border: 1px solid var(--hx-line);
}

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

.page-faq .faq-figure__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--hx-mist);
}

/* ---------- 底部联络 ---------- */
.page-faq .faq-cta {
  padding-block: clamp(44px, 6vw, 76px);
  background:
    linear-gradient(140deg, rgba(14, 46, 43, .85), rgba(16, 24, 39, .95) 62%),
    var(--hx-panel);
  border-top: 1px solid var(--hx-line);
  border-bottom: 1px solid var(--hx-line);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 26px;
  align-items: end;
}

.page-faq .faq-cta__title {
  margin: 10px 0 0;
  font-family: var(--hx-font-display);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.1;
  letter-spacing: -.01em;
  max-width: 20ch;
}

.page-faq .faq-cta__text {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hx-mist);
}

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

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

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

  .page-faq .faq-side {
    position: sticky;
    top: 88px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__card,
  .page-faq .faq-item,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-side__link {
    transition: none;
  }

  .page-faq .faq-quick__card:hover {
    transform: none;
  }
}
<<<END>>>