.page-faq {
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-sticky: 150px;
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(32px, 6vw, 72px);
}

.page-faq .container {
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding-inline: var(--bar-pad);
}

.page-faq .breadcrumbs {
  padding-block: 14px 0;
  font-size: var(--fs-sm);
  color: var(--mute);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(16px, 3vw, 28px) clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
  overflow: hidden;
  padding: clamp(20px, 4vw, 44px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-hero__inner::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 15px);
  opacity: 0.9;
}

.page-faq .faq-hero__text {
  min-width: 0;
  padding-top: 10px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 12px;
  color: var(--rust);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5.4vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 7px 12px;
  font-size: var(--fs-sm);
  color: var(--slate);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--rust);
  border-color: var(--orange);
  background: rgba(232, 100, 44, 0.06);
}

.page-faq .faq-hero__meta {
  margin: 20px 0 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-hero__figure {
  margin: 0;
  align-self: stretch;
}

.page-faq .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-faq .media-frame__cap {
  margin-top: 10px;
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 主体排版 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-faq .faq-index {
  min-width: 0;
  padding-top: 14px;
  border-top: 2px solid var(--slate);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  color: var(--rust);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 30px 1fr;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--card);
  border-color: var(--line);
}

.page-faq .faq-index__no {
  font-size: var(--fs-xs);
  color: var(--mute);
  letter-spacing: 0.05em;
}

.page-faq .faq-index__link:hover .faq-index__no {
  color: var(--orange);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-main {
  min-width: 0;
  display: grid;
  gap: clamp(34px, 5vw, 56px);
}

/* ---------- 分类与问答 ---------- */
.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: calc(var(--faq-sticky) - 10px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 4px 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__no {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--paper);
  background: var(--slate);
  border-radius: var(--radius);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-main > .faq-group:nth-of-type(3) .faq-group__no {
  color: var(--ink);
  background: var(--green);
}

.page-faq .faq-main > .faq-group:nth-of-type(4) .faq-group__no {
  color: var(--paper);
  background: var(--amber);
}

.page-faq .faq-group:target .faq-group__no {
  color: var(--ink);
  background: var(--orange);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.22rem, 2.6vw, 1.65rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .qa-list {
  margin-top: 6px;
  border-top: 1px solid var(--line);
}

.page-faq .qa {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa:hover {
  background: var(--paper);
  box-shadow: inset 2px 0 0 var(--line);
}

.page-faq .qa[open] {
  background: var(--paper);
  box-shadow: inset 2px 0 0 var(--orange);
}

.page-faq .qa__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qa__head:hover .qa__q {
  color: var(--rust);
}

.page-faq .qa__toggle {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .qa__toggle::before,
.page-faq .qa__toggle::after {
  content: "";
  position: absolute;
  background: var(--mute);
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa__toggle::before {
  inset: 7px 0 auto 0;
  height: 1.5px;
}

.page-faq .qa__toggle::after {
  inset: 0 auto 0 7px;
  width: 1.5px;
}

.page-faq .qa[open] .qa__toggle::after {
  transform: scaleY(0);
}

.page-faq .qa[open] .qa__toggle::before {
  background: var(--orange);
}

.page-faq .qa__body {
  padding: 0 14px 18px;
}

.page-faq .qa__body p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

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

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

/* ---------- 支持区 ---------- */
.page-faq .faq-group--support .faq-support {
  display: grid;
  gap: 22px;
  margin-top: 16px;
  padding: clamp(18px, 3.2vw, 32px);
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

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

.page-faq .faq-support__text p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: var(--fs-base);
  line-height: 1.8;
}

.page-faq .faq-support__list {
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-support__list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-support__figure {
  margin: 0;
  align-self: center;
}

/* ---------- 焦点反馈 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-radius: var(--radius);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .page-faq .faq-support {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 238px minmax(0, 1fr);
    gap: clamp(32px, 3.6vw, 56px);
  }

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

  .page-faq .qa__head {
    padding: 18px 20px;
  }

  .page-faq .qa__body {
    padding: 0 20px 20px;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-jump__link {
    font-size: 12.5px;
    padding: 6px 10px;
  }

  .page-faq .faq-hero__meta {
    letter-spacing: 0.02em;
  }
}
<<<END>>>