.page-faq {
  --faq-grid: rgba(31, 107, 79, 0.22);
  --faq-rule: rgba(31, 107, 79, 0.42);
  --faq-rule-soft: rgba(31, 107, 79, 0.24);
  --faq-paper-line: rgba(11, 12, 14, 0.14);
  --faq-rail-w: 210px;
  position: relative;
  overflow-x: clip;
  background: var(--c-night);
  color: var(--c-text);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: -1px -1px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.page-faq p {
  margin: 0;
}

.page-faq .faq-hero,
.page-faq .faq-layout,
.page-faq .faq-more {
  position: relative;
  z-index: 1;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(1.6rem, 4vw, 2.6rem) 0 clamp(2.2rem, 5vw, 4rem);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__in {
  margin-top: clamp(1.6rem, 4vw, 3rem);
}

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

.page-faq .faq-hero__title {
  margin: 0.7rem 0 0;
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2.3rem, 6.6vw, 5.4rem);
  line-height: 1.02;
  letter-spacing: -0.012em;
  color: var(--c-text);
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
  max-width: 60ch;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-hero__lede p {
  font-size: clamp(0.94rem, 1.1vw, 1.02rem);
  line-height: 1.8;
  color: var(--c-text-dim);
}

.page-faq .faq-hero__plate {
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  display: inline-flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 1rem 0.6rem;
  border: 1px solid var(--c-volt);
  background: var(--c-glass);
}

.page-faq .faq-hero__plate-no {
  font-size: 1.5rem;
  color: var(--c-volt);
  line-height: 1;
}

.page-faq .faq-hero__plate-txt {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-text-dim);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__in {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1.5rem 2rem;
    align-items: end;
  }
  .page-faq .faq-hero__lead {
    grid-column: 1 / span 7;
  }
  .page-faq .faq-hero__lede {
    grid-column: 9 / span 4;
    margin-top: 0;
    padding-left: 1.4rem;
    border-left: 1px solid var(--faq-rule);
  }
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-layout {
  padding-top: clamp(1.4rem, 3vw, 2.4rem);
  padding-bottom: clamp(2.4rem, 5vw, 4rem);
}

.page-faq .faq-rail {
  border-bottom: 1px solid var(--faq-rule-soft);
  padding-bottom: 1rem;
  margin-bottom: 0.8rem;
}

.page-faq .faq-rail__label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-grey);
  margin-bottom: 0.7rem;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--faq-rule);
  color: var(--c-text);
  text-decoration: none;
  font-size: 0.82rem;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-rail__link .num {
  font-size: 0.68rem;
  color: var(--c-volt);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--c-night-2);
  border-color: var(--c-volt);
}

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 0 clamp(2rem, 5vw, 5rem);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    border-bottom: 0;
    padding: 3.2rem 0 0;
    margin-bottom: 0;
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }
  .page-faq .faq-rail__link {
    border: 0;
    border-left: 2px solid var(--faq-rule);
    padding: 0.42rem 0 0.42rem 0.9rem;
    font-size: 0.86rem;
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: transparent;
    border-left-color: var(--c-volt);
    color: var(--c-volt);
  }
}

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

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  padding: clamp(2rem, 4.4vw, 3.4rem) 0 clamp(1.2rem, 2.6vw, 2rem);
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 92px;
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: clamp(1.6rem, 3vw, 2.4rem);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: clamp(0.9rem, 2vw, 1.5rem);
}

.page-faq .faq-group__no {
  flex: none;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1;
  color: var(--c-volt);
  letter-spacing: 0.02em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(1.45rem, 3vw, 2.35rem);
  line-height: 1.06;
  letter-spacing: -0.006em;
  color: var(--c-text);
}

/* ---------- 问答条 ---------- */

.page-faq .faq-list {
  border-top: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-q {
  border-bottom: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-q__ask {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: clamp(0.85rem, 1.8vw, 1.15rem) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(1.05rem, 2.1vw, 1.55rem);
  line-height: 1.28;
  color: var(--c-text);
  transition: color 0.2s ease;
}

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

.page-faq .faq-q__ask:hover,
.page-faq .faq-q__ask:focus-visible {
  color: var(--c-volt);
}

.page-faq .faq-q__mark {
  flex: none;
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 0.28em;
  border: 1px solid var(--c-volt);
  background: rgba(216, 255, 62, 0.08);
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-volt);
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__mark::before {
  width: 9px;
  height: 1px;
}

.page-faq .faq-q__mark::after {
  width: 1px;
  height: 9px;
  transition: transform 0.25s ease;
}

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

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

.page-faq .faq-q__ans {
  margin: 0 0 clamp(0.9rem, 2vw, 1.4rem);
  padding: clamp(0.95rem, 2vw, 1.25rem) clamp(1rem, 2.2vw, 1.5rem);
  background: var(--c-paper);
  color: var(--c-ink);
  border-radius: var(--radius);
  max-width: 64ch;
}

@media (min-width: 640px) {
  .page-faq .faq-q__ans {
    margin-left: 2.1rem;
  }
}

.page-faq .faq-q__ans p {
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-faq .faq-q__ans p + p {
  margin-top: 0.7rem;
}

/* ---------- 字段区 ---------- */

.page-faq .faq-fields {
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
  padding: clamp(1.1rem, 2.4vw, 1.8rem);
  background: var(--c-paper);
  color: var(--c-ink);
  border-radius: var(--radius);
  border-left: 4px solid var(--c-volt);
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-fields .eyebrow {
  color: var(--c-ink);
  opacity: 0.55;
  margin-bottom: 0.7rem;
}

.page-faq .faq-fields__list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-field {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
  padding: 0.62rem 0;
  border-top: 1px solid var(--faq-paper-line);
}

.page-faq .faq-field:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-field__k {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-ink);
}

.page-faq .faq-field__k .num {
  font-size: 0.72rem;
  color: var(--c-stop);
}

.page-faq .faq-field__v {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--c-ink-dim);
}

@media (min-width: 560px) {
  .page-faq .faq-field {
    grid-template-columns: minmax(150px, 0.9fr) minmax(0, 1.4fr);
    gap: 0.9rem;
    align-items: baseline;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-fields {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 配图 ---------- */

.page-faq .faq-fig {
  margin: clamp(1.2rem, 3vw, 2rem) 0 0;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--faq-rule);
}

.page-faq .faq-fig--fields img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-fig--rounds {
  margin-top: clamp(1.4rem, 3vw, 2.2rem);
}

.page-faq .faq-fig--rounds img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-fig figcaption {
  margin-top: 0.7rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--c-grey);
  max-width: 52ch;
}

/* ---------- 流程条 ---------- */

.page-faq .faq-flow {
  margin: clamp(1.4rem, 3vw, 2.2rem) 0 0;
  padding: clamp(1rem, 2.4vw, 1.6rem);
  background: var(--c-glass);
  border: 1px solid var(--faq-rule-soft);
  border-radius: var(--radius);
  overflow-x: auto;
}

.page-faq .faq-flow svg {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-faq .faq-flow__axis {
  stroke: var(--faq-rule);
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.page-faq .faq-flow__node rect {
  fill: var(--c-night-2);
  stroke: var(--c-line);
  stroke-width: 1;
}

.page-faq .faq-flow__node text {
  fill: var(--c-text);
  font-family: var(--f-mono);
  font-size: 15px;
  text-anchor: middle;
}

.page-faq .faq-flow__node--volt rect {
  fill: rgba(216, 255, 62, 0.12);
  stroke: var(--c-volt);
}

.page-faq .faq-flow__node--volt text {
  fill: var(--c-volt);
}

.page-faq .faq-flow figcaption {
  margin-top: 0.8rem;
  font-size: 0.8rem;
  color: var(--c-grey);
}

/* ---------- 页尾引导 ---------- */

.page-faq .faq-more {
  border-top: 1px solid var(--faq-rule);
  background: var(--c-ink);
  padding: clamp(2rem, 4.6vw, 3.2rem) 0;
}

.page-faq .faq-more__in {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-more__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.08;
  color: var(--c-text);
  max-width: 20ch;
}

.page-faq .faq-more__prose {
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--c-text-dim);
}

.page-faq .faq-more__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

@media (min-width: 900px) {
  .page-faq .faq-more__in {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: start;
    gap: 1rem 3rem;
  }
  .page-faq .faq-more__prose {
    grid-column: 2;
  }
  .page-faq .faq-more__links {
    grid-column: 2;
  }
}

/* ---------- 目标定位高亮（渐进增强） ---------- */

.page-faq .faq-group:target .faq-group__no {
  color: var(--c-stop);
}

.page-faq .faq-group:target .faq-group__head {
  box-shadow: inset 0 -1px 0 var(--c-stop);
}

/* ---------- 滚动显现 ---------- */

.page-faq .faq-group[data-reveal] {
  opacity: 1;
}

.page-faq.has-js .faq-group[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.page-faq.has-js .faq-group[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq.has-js .faq-group[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-q__mark::after,
  .page-faq .faq-q__ask {
    transition: none;
  }
}
<<<END>>>