.page-faq {
  --faq-index-w: 288px;
  --faq-card: #FFFFFF;
  --faq-body-ink: #3A4642;
  background: var(--mist);
  color: var(--ink);
  padding-bottom: 92px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 24px 0 44px;
  background:
    radial-gradient(130% 120% at 92% -30%, rgba(63, 167, 106, .36), transparent 56%),
    radial-gradient(90% 130% at 4% 120%, rgba(242, 160, 61, .16), transparent 62%),
    linear-gradient(175deg, var(--night) 0%, var(--night-2) 100%);
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: -.02em;
  font-size: clamp(38px, 9vw, 78px);
  line-height: 1.04;
  margin: 14px 0 0;
  color: var(--mist);
}

.page-faq .faq-hero__lead .eyebrow {
  color: var(--amber-hi);
}

.page-faq .faq-hero__lead > p:last-of-type {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-faq .faq-hero__aside {
  background: rgba(247, 250, 248, .05);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 20px 20px 22px;
}

.page-faq .faq-hero__aside-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber-hi);
}

.page-faq .faq-hero__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-hero__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--txt-soft);
}

.page-faq .faq-hero__list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--grass-hi);
  padding-top: 3px;
}

.page-faq .faq-hero__aside .btn {
  margin-top: 20px;
}

/* ---------- 主体框架 ---------- */
.page-faq .faq-body {
  padding: 42px 0 0;
}

.page-faq .faq-shell {
  display: grid;
  gap: 28px;
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  background: var(--night);
  border-radius: var(--radius-lg);
  padding: 20px;
  color: var(--mist);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber-hi);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--pill);
  color: var(--txt-soft);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .faq-index__link .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--grass-hi);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(247, 250, 248, .08);
  color: var(--mist);
}

.page-faq .faq-index__link[aria-current] {
  background: var(--amber);
  color: var(--night);
}

.page-faq .faq-index__link[aria-current] .num {
  color: var(--night);
}

.page-faq .faq-index__foot {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 48px;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--head-h) + 24px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  align-items: baseline;
  margin-bottom: 20px;
}

.page-faq .faq-group__no {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(44px, 8vw, 70px);
  line-height: .86;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.4px var(--grass);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -.02em;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.12;
  color: var(--night);
}

.page-faq .faq-group__head p {
  grid-column: 1 / -1;
  margin: 10px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-body-ink);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-items {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--faq-card);
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(63, 167, 106, .45);
}

.page-faq .faq-item[open] {
  border-color: rgba(63, 167, 106, .5);
  box-shadow: inset 3px 0 0 var(--amber), 0 22px 44px -32px rgba(11, 42, 34, .65);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--night);
}

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

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

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

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--mist);
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--night);
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 11px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 11px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(.2);
}

.page-faq .faq-item__a {
  position: relative;
  padding: 2px 22px 24px 62px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body-ink);
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 35px;
  top: -2px;
  bottom: 22px;
  width: 1px;
  background: linear-gradient(180deg, rgba(63, 167, 106, .6), rgba(63, 167, 106, 0));
}

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

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

/* 步骤 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 12px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-body-ink);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  color: var(--grass);
}

/* 操作提示 */
.page-faq .faq-tip {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(242, 160, 61, .13);
  border-left: 3px solid var(--amber);
  font-size: 15px;
  line-height: 1.75;
  color: var(--night);
}

.page-faq .faq-tip a {
  color: var(--night);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

.page-faq .faq-item__a .tag--dark {
  font-family: var(--font-mono);
  vertical-align: middle;
}

/* ---------- 图示 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--edge);
  background: var(--panel);
}

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

.page-faq .faq-figure figcaption {
  padding: 14px 20px 16px;
  border-top: 1px solid var(--edge);
  background: var(--panel);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--faq-body-ink);
}

/* ---------- 转人工 ---------- */
.page-faq .faq-cta {
  margin-top: 4px;
  padding: 26px 22px 28px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(63, 167, 106, .28), transparent 58%),
    linear-gradient(160deg, var(--night) 0%, var(--night-2) 100%);
  color: var(--mist);
}

.page-faq .faq-contact {
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__item {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: rgba(247, 250, 248, .06);
}

.page-faq .faq-contact__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber-hi);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-cta__note {
  margin: 20px 0 0;
  max-width: 72ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 28px 0 58px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: end;
  }

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

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--head-h) + 22px);
  }

  .page-faq .faq-hero__aside {
    padding: 22px 22px 24px;
  }

  .page-faq .faq-cta {
    padding: 32px 34px 34px;
  }
}
<<<END>>>