.page-faq {
  --faq-sticky: clamp(76px, 8vw, 108px);
  --faq-ink-soft: rgba(250, 247, 240, .78);
  --faq-rule: rgba(228, 232, 230, .16);
  background: var(--paper);
  color: var(--text);
  padding-bottom: clamp(56px, 8vw, 120px);
}

.page-faq .breadcrumb {
  margin-top: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(14px, 2.2vw, 26px);
}

.page-faq .faq-hero__copy {
  max-width: 46rem;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 22px;
  line-height: 1.04;
}

.page-faq .faq-hero .lede {
  max-width: 40em;
  color: var(--text-2);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
}

.page-faq .faq-hero__aside {
  margin-top: 30px;
  padding-left: 18px;
  border-left: 2px solid var(--flame);
}

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

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

.page-faq .faq-keylist li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--cool);
  font-size: 14px;
  color: var(--text-2);
}

.page-faq .faq-keylist b {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .faq-cover {
  margin: clamp(30px, 4.5vw, 52px) 0 0;
}

.page-faq .faq-cover__frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 3 / 2;
}

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

.page-faq .faq-cover__cap {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--gray);
}

/* ---------- 布局：左索引 + 右问答 ---------- */
.page-faq .faq-layout {
  margin-top: clamp(44px, 6vw, 80px);
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  grid-template-columns: minmax(0, 1fr);
}

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

.page-faq .faq-index__nav {
  margin-top: 14px;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--cool);
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 12px;
  padding: 13px 14px;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--cool);
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.page-faq .faq-index__item:hover {
  border-left-color: var(--flame-soft);
  background: rgba(255, 106, 26, .05);
  transform: translateX(6px);
}

.page-faq .faq-index__item.is-current,
.page-faq .faq-index__item[aria-current="true"] {
  border-left-color: var(--flame);
  background: rgba(255, 106, 26, .08);
}

.page-faq .faq-index__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--flame);
}

.page-faq .faq-index__label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
}

.page-faq .faq-index__hint {
  grid-column: 2;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: clamp(80px, 10vw, 120px);
}

.page-faq .faq-group + .faq-group {
  position: relative;
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--cool);
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 76px;
  height: 38px;
  border: 2px solid var(--flame-soft);
  border-bottom: none;
  border-left-color: transparent;
  border-right-color: transparent;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-group__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--flame);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  line-height: 1.12;
}

.page-faq .faq-group__lead {
  flex: 1 1 16rem;
  max-width: 30em;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-grid {
  display: grid;
  gap: clamp(12px, 1.6vw, 18px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-item {
  min-width: 0;
  background: #ffffff;
  border: 1px solid var(--cool);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--flame-soft);
  box-shadow: 0 12px 30px -20px rgba(10, 43, 36, .55);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 18px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--text);
}

.page-faq .faq-item__head::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 2px solid var(--flame);
  border-bottom: 2px solid var(--flame);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__head::after {
  transform: rotate(-135deg);
  margin-top: 10px;
}

.page-faq .faq-item__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--cool);
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}

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

.page-faq .faq-item__body a {
  color: var(--ink-2);
  text-decoration: underline;
  text-decoration-color: var(--flame-soft);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .faq-stamp {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 106, 26, .14);
  color: var(--flame-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  white-space: nowrap;
}

/* ---------- 权益配图 ---------- */
.page-faq .faq-record {
  margin: clamp(26px, 3.6vw, 44px) 0 0;
}

.page-faq .faq-record__frame {
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-2);
  aspect-ratio: 3 / 2;
}

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

.page-faq .faq-record__cap {
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--gray);
}

/* ---------- 求助面板 ---------- */
.page-faq .faq-group--help {
  border-top-color: transparent;
}

.page-faq .faq-group--help::before {
  display: none;
}

.page-faq .faq-help {
  border-radius: var(--r-lg);
  padding: clamp(26px, 3.6vw, 48px);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-help__copy h2 {
  margin: 14px 0 16px;
  line-height: 1.1;
}

.page-faq .faq-help__text {
  max-width: 36em;
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-help__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-help__list li {
  display: grid;
  gap: 5px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-help__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--flame-soft);
}

.page-faq .faq-help__v {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__link {
  color: var(--flame-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .faq-grid > .faq-item:nth-child(even) {
    margin-top: clamp(18px, 2.6vw, 36px);
  }
}

@media (min-width: 820px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 248px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
  }
}

@media (min-width: 981px) {
  .page-faq .faq-hero__aside {
    margin-top: 42px;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-keylist li {
    flex-wrap: wrap;
  }

  .page-faq .faq-index__item {
    padding: 12px 12px;
  }

  .page-faq .faq-item__head {
    padding: 16px 15px 14px;
  }

  .page-faq .faq-item__body {
    padding: 13px 15px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-item,
  .page-faq .faq-item__head::after {
    transition: none;
  }

  .page-faq .faq-index__item:hover {
    transform: none;
  }
}
<<<END>>>