.page-faq {
  --faq-line: var(--line-light);
  --faq-radius: 3px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 64px 0 76px;
  color: var(--chalk);
  background:
    radial-gradient(120% 90% at 84% 4%, rgba(92, 242, 214, .16), transparent 58%),
    radial-gradient(80% 70% at 6% 100%, rgba(255, 138, 61, .12), transparent 62%),
    var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 40px;
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.page-faq .faq-hero ::selection {
  background: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 36px;
}

.page-faq .breadcrumbs {
  margin-bottom: 22px;
  font-size: 13px;
  color: var(--slate);
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  letter-spacing: .08em;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--slate);
}

.page-faq .breadcrumbs a {
  color: var(--moss);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-faq .eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-faq .h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.3rem, 8vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: -.01em;
}

.page-faq .lede {
  max-width: 34em;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(249, 251, 247, .82);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-search {
  margin-top: 32px;
  padding-top: 20px;
  max-width: 440px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--moss);
}

.page-faq .faq-search__input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  background: rgba(249, 251, 247, .06);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 15px;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(191, 232, 210, .6);
}

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

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

.page-faq .faq-hero__panel {
  align-self: start;
}

.page-faq .faq-hero__panel-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-faq .faq-jump {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 2px 10px;
  padding: 15px 16px;
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  background: rgba(249, 251, 247, .03);
  color: var(--chalk);
  text-decoration: none;
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}

.page-faq .faq-jump + .faq-jump {
  margin-top: 10px;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  border-color: var(--cyan);
  background: rgba(92, 242, 214, .07);
  transform: translateX(4px);
}

.page-faq .faq-jump__idx {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-jump__title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-faq .faq-jump__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(191, 232, 210, .78);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding: 44px 0 64px;
  background: var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--slate);
}

.page-faq .faq-index__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  gap: 8px;
  align-items: baseline;
  flex: none;
  padding: 9px 12px;
  border: 1px solid var(--line-light);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}

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

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--pitch);
  background: var(--paper-2);
}

.page-faq .faq-group {
  padding: 0 0 12px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 56px;
  padding-top: 44px;
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-group__head {
  max-width: 40em;
  margin-bottom: 24px;
}

.page-faq .label-plate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--pitch);
  border-radius: 2px;
  background: rgba(22, 122, 74, .07);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pitch-deep);
}

.page-faq .label-plate__idx {
  color: var(--pitch);
  font-weight: 700;
}

.page-faq .h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 4.4vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__guide {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .faq-group__figure {
  margin: 0 0 22px;
}

.page-faq .faq-group__figure img,
.page-faq .faq-help__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--faq-radius);
}

.page-faq .faq-help__figure {
  margin: 0;
}

.page-faq .image-frame__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 版本对照图 ---------- */
.page-faq .faq-compare {
  margin: 0 0 26px;
  padding: 18px 16px 14px;
  border-radius: var(--faq-radius);
  background: var(--ink);
}

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

.page-faq .svg-screen {
  fill: var(--ink-soft);
  stroke: rgba(92, 242, 214, .3);
  stroke-width: 1.5;
}

.page-faq .svg-slot {
  fill: rgba(249, 251, 247, .16);
}

.page-faq .svg-slot--on {
  fill: var(--cyan);
}

.page-faq .svg-card {
  fill: rgba(249, 251, 247, .09);
}

.page-faq .svg-accent {
  fill: var(--orange);
}

.page-faq .svg-arrow {
  fill: none;
  stroke: rgba(191, 232, 210, .55);
  stroke-width: 1.4;
}

.page-faq .svg-label {
  fill: var(--moss);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-faq .faq-compare__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  font-size: 12px;
  color: rgba(191, 232, 210, .85);
}

.page-faq .faq-compare__legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.page-faq .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.page-faq .dot--cyan { background: var(--cyan); }
.page-faq .dot--orange { background: var(--orange); }
.page-faq .dot--line { background: rgba(249, 251, 247, .32); }

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

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: color .25s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--pitch);
  transform: translateY(2px);
}

.page-faq .faq-item[open] summary {
  color: var(--pitch-deep);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-item summary:hover {
  color: var(--pitch);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--pitch);
  outline-offset: 3px;
}

.page-faq .faq-item__mark {
  flex: none;
  min-width: 24px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-faq .faq-item__a {
  margin: 0 0 20px 36px;
  padding-left: 16px;
  border-left: 2px solid var(--pitch);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-item__a a {
  color: var(--pitch-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--orange);
}

.page-faq .faq-steps {
  display: grid;
  gap: 9px;
  margin: 0 0 14px;
  padding-left: 1.15em;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-steps li::marker {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pitch);
}

.page-faq .faq-tip {
  margin: 12px 0 0;
  padding: 10px 14px;
  border-left: 2px solid var(--orange);
  background: var(--paper-2);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-help {
  position: relative;
  padding: 56px 0 64px;
  color: var(--chalk);
  background:
    radial-gradient(90% 80% at 88% 0%, rgba(92, 242, 214, .14), transparent 60%),
    var(--ink);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 36px;
  background: var(--paper);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-faq .faq-help .eyebrow {
  margin-bottom: 12px;
}

.page-faq .faq-help .h2 {
  color: var(--chalk);
}

.page-faq .faq-help__body {
  max-width: 32em;
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(249, 251, 247, .82);
}

.page-faq .faq-help__list {
  display: grid;
  gap: 12px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(249, 251, 247, .82);
}

.page-faq .faq-help__list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-help__list .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .faq-help__top {
  padding: 10px 4px;
  border: 0;
  background: none;
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-help__top:hover {
  color: var(--cyan);
}

.page-faq .faq-help__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .03em;
  color: var(--slate);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 80px 0 96px;
  }

  .page-faq .faq-hero__quick {
    margin-top: 32px;
  }

  .page-faq .faq-body {
    padding: 56px 0 80px;
  }

  .page-faq .faq-item summary {
    font-size: 17px;
    padding: 20px 0;
  }

  .page-faq .faq-help {
    padding: 72px 0 80px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-hero__panel {
    padding-top: 52px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 48px;
  }

  .page-faq .faq-help::before {
    height: 48px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-index__nav {
    flex-direction: column;
    overflow: visible;
    gap: 6px;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    border-color: transparent;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 8px 10px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--pitch);
    background: var(--paper-2);
  }

  .page-faq .faq-group__head {
    max-width: 36em;
  }

  .page-faq .faq-item__a {
    max-width: 44em;
    margin-left: 44px;
    padding-left: 20px;
  }

  .page-faq .faq-compare {
    padding: 24px 24px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-index__link,
  .page-faq .faq-item summary {
    transition: none;
  }

  .page-faq .faq-jump:hover,
  .page-faq .faq-jump:focus-visible {
    transform: none;
  }
}
<<<END>>>