.page-faq {
  --faq-line: rgba(143, 166, 196, .18);
  --faq-line-strong: rgba(53, 241, 208, .34);
  --faq-radius: 16px;
  --faq-teal: rgba(10, 42, 52, .9);
  --faq-body: rgba(242, 246, 255, .82);
  --faq-body-dim: rgba(242, 246, 255, .68);
  background: var(--ink-0);
  color: var(--white);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(34px, 5vw, 62px) 0 clamp(46px, 6vw, 82px);
  background:
    radial-gradient(120% 88% at 84% -12%, rgba(23, 18, 56, .92), rgba(6, 20, 40, 0) 62%),
    radial-gradient(72% 62% at 2% 108%, rgba(53, 241, 208, .1), rgba(6, 20, 40, 0) 58%),
    var(--ink-0);
}

.page-faq .faq-hero .crumbs {
  font-size: 13px;
  margin-bottom: 6px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 54px);
  margin-top: clamp(26px, 4vw, 46px);
}

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

.page-faq .faq-hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(29px, 4.4vw, 54px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -.02em;
  transform: skewX(-1.6deg);
  transform-origin: left center;
  text-shadow: 0 0 46px rgba(53, 241, 208, .16);
}

.page-faq .faq-hero h1 span {
  color: var(--cyan);
}

.page-faq .faq-hero .lede {
  max-width: 40em;
  margin: 0;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line);
  list-style: none;
}

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

.page-faq .faq-stats dt {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-faq .faq-stats dd {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--white);
}

.page-faq .faq-stats__n {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

/* ---------- 主题索引 ---------- */
.page-faq .faq-index {
  padding: 22px 22px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: linear-gradient(158deg, rgba(10, 42, 52, .86), rgba(6, 20, 40, .48));
}

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

.page-faq .faq-index__list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list li + li {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  font-size: 15px;
  color: var(--white);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-faq .faq-index__list a span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cyan);
}

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

.page-faq .faq-index__note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 轮次刻度装饰线 ---------- */
.page-faq .faq-ruler {
  position: relative;
  height: 1px;
  margin: 0;
  background-image: repeating-linear-gradient(to right, rgba(143, 166, 196, .3) 0 1px, transparent 1px 32px);
}

.page-faq .faq-ruler::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -3px;
  width: 46px;
  height: 6px;
  transform: translateX(-50%);
  border-radius: 3px;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(53, 241, 208, .55);
}

/* ---------- 问答分区 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: clamp(46px, 6vw, 84px) 0;
}

.page-faq #group-version {
  background: var(--ink-1);
}

.page-faq #group-metric {
  background: var(--ink-2);
}

.page-faq #group-contact {
  background: var(--ink-1);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  margin-bottom: clamp(22px, 3vw, 38px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-block__num {
  grid-row: 1 / span 2;
  padding-top: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--cyan);
  transition: text-shadow var(--t-mid);
}

.page-faq .faq-block.is-active .faq-block__num {
  text-shadow: 0 0 20px rgba(53, 241, 208, .6);
}

.page-faq .faq-block__head h2 {
  grid-column: 2;
  margin: 0;
  font-size: clamp(21px, 2.5vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
  transform: skewX(-1.4deg);
  transform-origin: left center;
}

.page-faq .faq-block__note {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .faq-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  min-width: 0;
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr) 1.6em;
  gap: 10px;
  align-items: start;
  padding: 19px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary::after {
  content: "+";
  display: block;
  text-align: center;
  padding-top: 1px;
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--steel);
  transition: color var(--t-fast);
}

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

.page-faq .faq-item__num {
  padding-top: 4px;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--steel);
  transition: color var(--t-mid);
}

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

.page-faq .faq-item__q {
  font-size: clamp(15.5px, 1.4vw, 18px);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -.005em;
  color: var(--white);
  transition: color var(--t-fast);
}

.page-faq .faq-item > summary:hover .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 6px;
}

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

.page-faq .faq-answer {
  padding: 18px 20px 18px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 14px 14px 0;
  background: linear-gradient(115deg, var(--faq-teal), rgba(6, 20, 40, .34));
}

.page-faq .faq-answer p {
  margin: 0 0 .85em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-body);
}

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

.page-faq .faq-answer a,
.page-faq .faq-cta__contents a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 241, 208, .42);
  transition: border-color var(--t-fast);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-cta__contents a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-answer a:focus-visible,
.page-faq .faq-cta__contents a:focus-visible,
.page-faq .faq-index__list a:focus-visible,
.page-faq .faq-scene__card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: rgba(10, 42, 52, .5);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--steel);
}

/* ---------- 场景长条卡片 ---------- */
.page-faq .faq-scene {
  padding: clamp(50px, 6vw, 88px) 0 clamp(28px, 3vw, 40px);
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink-0) 100%);
}

.page-faq .faq-scene__head {
  max-width: 44em;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-scene__head h2 {
  margin: 10px 0 12px;
  font-size: clamp(21px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
  transform: skewX(-1.4deg);
  transform-origin: left center;
}

.page-faq .faq-scene__lede {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-body-dim);
}

.page-faq .faq-scene__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-scene__card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  background: rgba(10, 42, 52, .44);
  color: var(--white);
  text-decoration: none;
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-mid);
}

.page-faq .faq-scene__card:hover {
  border-color: var(--faq-line-strong);
  background: rgba(10, 42, 52, .76);
  transform: translateX(4px);
}

.page-faq .faq-scene__ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(53, 241, 208, .32);
  border-radius: 12px;
  background: rgba(53, 241, 208, .07);
  color: var(--cyan);
}

.page-faq .faq-scene__ico svg {
  display: block;
  width: 22px;
  height: 22px;
}

.page-faq .faq-scene__body {
  display: block;
  min-width: 0;
}

.page-faq .faq-scene__title {
  display: block;
  margin-bottom: 5px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-scene__desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-scene__go {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-cta {
  padding: clamp(26px, 3vw, 40px) 0 clamp(60px, 7vw, 96px);
  background: var(--ink-0);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: clamp(26px, 3.4vw, 44px);
  border: 1px solid var(--faq-line-strong);
  border-radius: 22px;
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(255, 138, 61, .16), rgba(23, 18, 56, 0) 58%),
    linear-gradient(150deg, rgba(23, 18, 56, .94), rgba(6, 20, 40, .92));
}

.page-faq .faq-cta__contents h2 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.01em;
}

.page-faq .faq-cta__contents p {
  max-width: 46em;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-body);
}

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

/* ---------- 窄屏微调 ---------- */
@media (max-width: 620px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 1.9em minmax(0, 1fr) 1.2em;
    gap: 8px;
  }

  .page-faq .faq-answer {
    padding: 16px 16px 16px;
    border-radius: 0 12px 12px 0;
  }

  .page-faq .faq-scene__card {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px 14px;
    padding: 16px;
  }

  .page-faq .faq-scene__go {
    grid-column: 2;
  }
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, .92fr);
    align-items: start;
  }

  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-block--flip .faq-block__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  }

  .page-faq .faq-block--flip .faq-figure {
    order: -1;
  }

  .page-faq .faq-figure {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-item__body {
    padding-left: calc(2.4em + 10px);
  }

  .page-faq .faq-answer {
    padding: 20px 26px 22px;
    columns: 2;
    column-gap: 40px;
    column-rule: 1px solid var(--faq-line);
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-index {
    padding: 26px 26px 22px;
  }

  .page-faq .faq-scene__card {
    padding: 22px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation: none !important;
    transition: none !important;
  }

  .page-faq .faq-hero h1,
  .page-faq .faq-block__head h2,
  .page-faq .faq-scene__head h2 {
    transform: none;
  }
}
<<<END>>>