.page-faq {
  --faq-hair: 1px solid var(--line-700);
  --faq-pad: clamp(20px, 4vw, 56px);
  --faq-gap: clamp(56px, 9vw, 112px);
  --faq-amber-soft: rgba(255, 158, 44, 0.1);
  --faq-blue-soft: rgba(45, 125, 255, 0.12);
  padding-bottom: clamp(64px, 9vw, 120px);
  color: var(--paper-100);
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
  margin-bottom: clamp(18px, 3vw, 28px);
}

/* ---------- 框景首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding: var(--faq-pad);
  border: var(--faq-hair);
  background:
    linear-gradient(158deg, var(--faq-blue-soft), transparent 58%),
    var(--ink-900);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: clamp(56px, 12vw, 96px);
  background: var(--amber-500);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: var(--faq-pad);
  bottom: 0;
  width: 96px;
  height: 1px;
  background: var(--line-700);
}

.page-faq .faq-hero__body {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-100);
}

.page-faq .faq-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 4vw, 44px);
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: var(--faq-hair);
}

.page-faq .faq-hero__strip > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-faq .faq-hero__strip dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--amber-500);
}

.page-faq .faq-hero__visual {
  display: none;
}

/* ---------- 路径 chips ---------- */
.page-faq .faq-paths {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  display: flex;
  gap: 0;
  margin-top: clamp(22px, 3vw, 32px);
  border-top: var(--faq-hair);
  border-bottom: var(--faq-hair);
  background: var(--ink-950);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-paths::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-path {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 14px 18px;
  border-right: var(--faq-hair);
  color: var(--paper-100);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease);
}

.page-faq .faq-path:first-child {
  border-left: var(--faq-hair);
}

.page-faq .faq-path__idx {
  font-size: 11px;
  color: var(--amber-500);
  letter-spacing: 0.12em;
}

.page-faq .faq-path:hover,
.page-faq .faq-path:focus-visible {
  background: var(--faq-blue-soft);
  color: #fff;
  outline: none;
}

.page-faq .faq-path:focus-visible {
  outline: 1px solid var(--blue-500);
  outline-offset: -3px;
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding-top: var(--faq-gap);
  scroll-margin-top: 130px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: var(--faq-hair);
}

.page-faq .faq-group__idx {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber-500);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-group__line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--line-700);
  transform: translateY(-6px);
}

.page-faq .faq-group__note {
  margin: 18px 0 8px;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel-400);
}

.page-faq .faq-list {
  margin-top: 12px;
}

.page-faq .faq-item {
  padding-left: 14px;
  border-bottom: var(--faq-hair);
  box-shadow: inset 0 0 0 0 transparent;
  transition: box-shadow var(--ease);
}

.page-faq .faq-item[open] {
  box-shadow: inset 2px 0 0 0 var(--amber-500);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 38px 1fr 18px;
  gap: 10px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 1px solid var(--blue-500);
  outline-offset: 2px;
}

.page-faq .faq-item__num {
  padding-top: 5px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel-400);
  transition: color var(--ease);
}

.page-faq .faq-item__q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper-100);
}

.page-faq .faq-item__sign {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--steel-400);
  transition: transform var(--ease), opacity var(--ease), background var(--ease);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .faq-item__sign::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--amber-500);
}

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

.page-faq .faq-item[open] .faq-item__num {
  color: var(--amber-500);
}

.page-faq .faq-item__body {
  padding: 0 0 24px 0;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-100);
}

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

.page-faq .faq-item__body a {
  color: var(--blue-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  color: var(--amber-500);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
  max-width: 760px;
  border: var(--faq-hair);
}

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

.page-faq .faq-figure .img-frame__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel-400);
  border-top: var(--faq-hair);
}

/* ---------- 未解决 ---------- */
.page-faq .faq-help {
  margin-top: var(--faq-gap);
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: var(--faq-pad);
  border: var(--faq-hair);
  background:
    linear-gradient(206deg, var(--faq-amber-soft), transparent 62%),
    var(--ink-900);
}

.page-faq .faq-help__idx {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber-500);
}

.page-faq .faq-help h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  max-width: 16em;
}

.page-faq .faq-help p {
  margin: 16px 0 0;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-100);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: var(--faq-hair);
}

.page-faq .faq-help__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: var(--faq-hair);
  font-size: 15px;
  color: var(--paper-100);
}

.page-faq .faq-help__list .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel-400);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-help__figure {
  margin: 0;
  border: var(--faq-hair);
  background: var(--ink-950);
}

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

.page-faq .faq-help__figure .img-frame__caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel-400);
  border-top: var(--faq-hair);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 64px 1fr 24px;
    padding: 22px 0;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 0 0 28px 64px;
  }

  .page-faq .faq-path {
    padding: 15px 24px;
    font-size: 15px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.5fr);
    align-items: end;
  }

  .page-faq .faq-hero__visual {
    display: block;
    align-self: center;
    opacity: 0.85;
  }

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

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-item__num,
  .page-faq .faq-path {
    transition: none;
  }
}
<<<END>>>