.page-faq {
  --faq-cut: 14px;
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-faq .faq-shell {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  padding-top: clamp(18px, 2.6vw, 34px);
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

/* 页头 */
.page-faq .faq-head {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  padding-bottom: clamp(24px, 3.4vw, 44px);
}

.page-faq .faq-head__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .page-head__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .lede {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-head__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  clip-path: polygon(
    var(--faq-cut) 0,
    100% 0,
    100% calc(100% - var(--faq-cut)),
    calc(100% - var(--faq-cut)) 100%,
    0 100%,
    0 var(--faq-cut)
  );
}

.page-faq .faq-head__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 1200 / 560;
  filter: saturate(0.78) contrast(1.06) brightness(0.92);
}

/* 顶部信息带 */
.page-faq .faq-band {
  position: relative;
  margin-bottom: clamp(30px, 4.2vw, 54px);
  padding: 16px clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--cyan) 0 3px, var(--panel) 3px);
  clip-path: polygon(0 0, 100% 0, calc(100% - 30px) 100%, 0 100%);
  z-index: 0;
}

.page-faq .faq-band__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
}

.page-faq .faq-band__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-band__batch {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--orange);
  border-bottom: 1px dashed var(--orange-dim);
  cursor: help;
  outline-offset: 4px;
}

.page-faq .faq-band__batch:focus-visible {
  outline: 2px solid var(--cyan);
}

.page-faq .faq-band__batch-note {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 6;
  width: min(300px, 76vw);
  padding: 12px 14px;
  background: var(--ink);
  border: 1px solid var(--cyan-dim);
  color: var(--text);
  font-size: 13px;
  line-height: 1.62;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
}

.page-faq .faq-band__batch:hover .faq-band__batch-note,
.page-faq .faq-band__batch:focus .faq-band__batch-note {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 双栏骨架 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
}

/* 主题索引 */
.page-faq .faq-index {
  border-top: 2px solid var(--cyan);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

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

.page-faq .faq-index__num {
  font-size: 12px;
  color: var(--cyan-dim);
}

/* 问答分组 */
.page-faq .faq-topic {
  margin-bottom: clamp(30px, 4.4vw, 52px);
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .faq-topic__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-topic__num {
  font-size: 14px;
  color: var(--cyan);
}

.page-faq .faq-topic__intro {
  margin: 14px 0 18px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* 字段读法对照 */
.page-faq .faq-fields {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--faq-cut)),
    calc(100% - var(--faq-cut)) 100%,
    0 100%
  );
}

.page-faq .faq-fields__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-fields__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-fields__name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-fields__read {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* 折叠问答 */
.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--panel);
  border-left: 2px solid var(--line);
  transition: border-left-color var(--t-base), background var(--t-base);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, var(--glass), rgba(47, 230, 200, 0) 46%), var(--panel);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--muted);
  transition: color var(--t-fast);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--cyan);
}

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

.page-faq .faq-item__a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

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

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

/* 复盘区氛围图 */
.page-faq .faq-review-media {
  margin: 18px 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-review-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 800 / 600;
  filter: saturate(0.7) brightness(0.88);
}

.page-faq .media-frame__caption {
  display: block;
  padding: 10px 16px 12px;
  border-left: 2px solid var(--cyan-dim);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* 联系区块 */
.page-faq .faq-help {
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(22px, 3vw, 36px) clamp(18px, 3vw, 34px);
  background: var(--panel);
  border-top: 2px solid var(--cyan);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--faq-cut)),
    calc(100% - var(--faq-cut)) 100%,
    0 100%
  );
}

.page-faq .faq-help__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-help__lede {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

.page-faq .faq-help__list {
  margin: 0 0 22px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-help__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 16px;
  background: var(--ink);
}

.page-faq .faq-help__row dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-help__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 桌面端 */
@media (min-width: 700px) {
  .page-faq .faq-fields__row,
  .page-faq .faq-help__row {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-head {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__item {
    margin-bottom: 2px;
  }

  .page-faq .faq-index__link {
    display: flex;
    gap: 10px;
    padding: 9px 12px;
    margin-left: -1px;
    white-space: normal;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--glass);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-topic__intro,
  .page-faq .lede {
    max-width: 68ch;
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after,
  .page-faq .faq-index__link,
  .page-faq .faq-band__batch-note {
    transition: none;
  }
}
<<<END>>>