.page-faq {
  --faq-num-col: 46px;
  --faq-pad-x: clamp(16px, 2.6vw, 26px);
  --faq-item-gap: 10px;
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-faq .breadcrumbs {
  margin-top: clamp(16px, 2.4vw, 26px);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  margin-top: clamp(18px, 2.6vw, 30px);
  padding: clamp(28px, 4.4vw, 56px);
  position: relative;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-display);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 14px 0 20px;
  max-width: 17ch;
}

.page-faq .faq-lede {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 62ch;
}

.page-faq .faq-hero-meta {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 分组索引刻度带 ---------- */
.page-faq .faq-index {
  margin-top: clamp(20px, 3vw, 34px);
  padding: 0;
  overflow: hidden;
}

.page-faq .faq-index-rail {
  height: 14px;
  background-color: var(--panel-2);
  background-image: repeating-linear-gradient(
    90deg,
    var(--line) 0 1px,
    transparent 1px 14px
  );
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0 var(--faq-pad-x);
  display: flex;
  gap: clamp(10px, 2.6vw, 38px);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 16px 0 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--muted);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(14px, 1.1vw, 15px);
  border-bottom: 2px solid transparent;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-faq .faq-index-num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--line);
  transition: color 0.15s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-index-list a:hover .faq-index-num,
.page-faq .faq-index-list a:focus-visible .faq-index-num {
  color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-top: var(--section-gap);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: clamp(12px, 1.8vw, 18px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-group-index {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  padding: 3px 8px;
  border: 1px solid rgba(0, 229, 208, 0.45);
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0;
}

.page-faq .faq-group-note {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 图形 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3.2vw, 34px);
}

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

.page-faq .faq-figure .media-frame-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-flow {
  margin: clamp(40px, 6vw, 72px) 0 0;
  padding: clamp(14px, 2vw, 20px) 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-flow::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-flow svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--faq-item-gap);
}

.page-faq .faq-item {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.15s var(--ease), transform 0.15s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 229, 208, 0.45);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: var(--line);
  transform: none;
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: clamp(10px, 1.8vw, 20px);
  padding: clamp(16px, 2.2vw, 22px) var(--faq-pad-x);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 46%;
  background: var(--line);
  transition: width 0.15s var(--ease), background 0.15s var(--ease);
}

.page-faq .faq-item:hover .faq-q::before,
.page-faq .faq-q:focus-visible::before {
  background: rgba(0, 229, 208, 0.6);
  width: 4px;
}

.page-faq .faq-item[open] .faq-q::before {
  background: var(--cyan);
  width: 5px;
  height: 62%;
}

.page-faq .faq-num {
  flex: 0 0 var(--faq-num-col);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding-top: 4px;
}

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

.page-faq .faq-q-text {
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.3vw, 17.5px);
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-toggle {
  flex: 0 0 auto;
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 7px;
}

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

.page-faq .faq-toggle::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-toggle::before {
  background: var(--cyan);
}

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

.page-faq .faq-a {
  margin: 0 var(--faq-pad-x);
  padding: clamp(14px, 2vw, 18px) 0 clamp(18px, 2.6vw, 24px);
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-item[open] .faq-a {
  animation: faqReveal 0.3s var(--ease) both;
}

@keyframes faqReveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-a p {
  margin: 0 0 12px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--muted);
  max-width: 68ch;
}

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

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

.page-faq .faq-a a:hover,
.page-faq .faq-a a:focus-visible {
  color: var(--cyan);
}

/* ---------- 联系路径 ---------- */
.page-faq .faq-reach {
  margin-top: var(--section-gap);
  padding: clamp(26px, 4vw, 48px);
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .faq-reach-main h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.2;
  color: var(--white);
  margin: 12px 0 14px;
}

.page-faq .faq-reach-main p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

.page-faq .faq-reach-list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-reach-cell {
  background: var(--panel-2);
  padding: 14px clamp(14px, 2vw, 20px);
  display: grid;
  gap: 6px;
}

.page-faq .faq-reach-cell dt {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-reach-cell dd {
  margin: 0;
  font-size: clamp(14px, 1.15vw, 15.5px);
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-reach-note {
  margin: 0;
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-reach-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-reach-note a:hover,
.page-faq .faq-reach-note a:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-reach-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 继续查阅 ---------- */
.page-faq .faq-next {
  margin-top: clamp(28px, 4.4vw, 56px);
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-next-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-next-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  background: var(--panel);
  padding: 15px clamp(14px, 2vw, 20px);
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(14.5px, 1.15vw, 16px);
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}

.page-faq .faq-next-list a .mono {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--line);
  transition: color 0.15s var(--ease);
}

.page-faq .faq-next-list a:hover,
.page-faq .faq-next-list a:focus-visible {
  background: var(--panel-2);
  color: var(--cyan);
}

.page-faq .faq-next-list a:hover .mono,
.page-faq .faq-next-list a:focus-visible .mono {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-reach {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-next-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-next-list a {
    flex-direction: column;
    gap: 8px;
    height: 100%;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-group-head {
    display: grid;
    grid-template-columns: auto minmax(240px, 320px) minmax(0, 1fr);
    align-items: baseline;
    column-gap: clamp(16px, 2.4vw, 28px);
  }

  .page-faq .faq-figure {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(20px, 3vw, 40px);
    align-items: start;
  }

  .page-faq .faq-figure .media-frame-caption {
    margin-top: 0;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 479px) {
  .page-faq {
    --faq-num-col: 38px;
  }

  .page-faq .faq-q {
    gap: 10px;
  }

  .page-faq .faq-q-text {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q::before,
  .page-faq .faq-toggle::before,
  .page-faq .faq-toggle::after,
  .page-faq .faq-index-list a {
    transition: none;
  }

  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }
}
<<<END>>>