.page-faq {
  --faq-line-soft: rgba(37, 230, 208, .16);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.12;
  margin: 0;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 44px;
  background:
    linear-gradient(168deg, var(--panel) 0%, var(--panel) 44%, var(--ink) 44.2%, var(--ink) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -12%;
  right: -14%;
  width: 78%;
  height: 132%;
  background: linear-gradient(155deg, rgba(14, 24, 48, .92), rgba(7, 12, 24, .18));
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  min-width: 0;
}

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

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .breadcrumbs__item:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}

.page-faq .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumbs__link:hover,
.page-faq .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(28px, 7vw, 52px);
  max-width: 15em;
  margin-bottom: 18px;
}

.page-faq .faq-hero__lead {
  margin: 0 0 22px;
  max-width: 46em;
  color: var(--mist);
  font-size: 15px;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__media {
  margin: 0;
  min-width: 0;
  padding: 10px 10px 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: -8px 8px 0 rgba(37, 230, 208, .1);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.page-faq .faq-hero__cap {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--mist);
  padding: 10px 2px 12px;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 32px;
  padding: 44px 0 80px;
  min-width: 0;
}

.page-faq .faq-body__main {
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  position: relative;
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--topline-h) + 24px);
}

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

.page-faq .faq-group__head {
  position: relative;
  border-top: 2px solid var(--line);
  padding: 20px 0 18px;
}

.page-faq .faq-group__dot {
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-group__head h2 {
  font-size: clamp(21px, 4.6vw, 32px);
  margin-bottom: 10px;
  color: var(--white);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 50em;
  color: var(--mist);
  font-size: 14px;
}

/* ---------- 三步排查卡 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 4px 0 22px;
}

.page-faq .faq-step {
  position: relative;
  padding: 15px 15px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: -4px 4px 0 var(--faq-line-soft);
}

.page-faq .faq-step__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-step__t {
  font-size: 16px;
  color: var(--white);
  margin-bottom: 6px;
}

.page-faq .faq-step__d {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

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

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 40px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
  transition: color .22s var(--ease);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .24s var(--ease);
}

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 400;
  color: var(--cyan);
}

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

.page-faq .faq-item__q:hover::before,
.page-faq .faq-item__q:focus-visible::before,
.page-faq .faq-item[open] .faq-item__q::before {
  transform: scaleY(1);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item[open] .faq-item__q {
  color: var(--mint);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--sand);
  padding-top: 3px;
}

.page-faq .faq-item__qt {
  min-width: 0;
  overflow-wrap: break-word;
}

.page-faq .faq-item__a {
  padding: 0 18px 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  overflow-wrap: break-word;
}

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

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

.page-faq .faq-item__a strong {
  color: var(--white);
  font-weight: 500;
}

.page-faq .faq-item__a ol,
.page-faq .faq-item__a ul {
  margin: 0 0 10px;
  padding-left: 20px;
}

.page-faq .faq-item__a li {
  margin-bottom: 6px;
}

.page-faq .faq-item__a li::marker {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ---------- 行内链接 ---------- */
.page-faq .faq-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--cyan);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid rgba(37, 230, 208, .45);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 12px;
  transition: transform .2s var(--ease);
}

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

.page-faq .faq-link:hover::after {
  transform: translateX(3px);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 22px;
  padding: 8px 8px 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: -6px 6px 0 rgba(231, 197, 131, .1);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05);
}

.page-faq .faq-figure__cap {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--mist);
  padding: 8px 2px 10px;
}

/* ---------- 联系材料 ---------- */
.page-faq .faq-mats {
  display: grid;
  gap: 12px;
  margin: 4px 0 20px;
}

.page-faq .faq-mat {
  padding: 14px 16px;
  background: var(--panel);
  border-left: 2px solid var(--sand);
}

.page-faq .faq-mat__k {
  margin: 0 0 6px;
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--sand);
}

.page-faq .faq-mat__t {
  font-size: 16px;
  color: var(--white);
  margin-bottom: 6px;
}

.page-faq .faq-mat__d {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-group--help {
  padding-top: 4px;
}

.page-faq .faq-help__note {
  margin: 0 0 18px;
  max-width: 48em;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-help__cta {
  display: inline-block;
  text-decoration: none;
}

/* ---------- 右侧索引 ---------- */
.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-index__list a {
  display: block;
  margin-left: -1px;
  padding: 9px 10px 9px 14px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(37, 230, 208, .07);
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__foot {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-item__q {
    font-size: 18px;
  }

  .page-faq .faq-item__a {
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 44px 0 64px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, .84fr);
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-body {
    padding: 60px 0 104px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 230px;
    column-gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--topline-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__q,
  .page-faq .faq-link::after,
  .page-faq .faq-index__list a {
    transition: none;
  }

  .page-faq .faq-item__q::before {
    transform: scaleY(1);
    opacity: .3;
  }
}
<<<END>>>