.page-faq {
  --faq-measure: 720px;
  --faq-line: rgba(110, 134, 168, 0.22);
  --faq-line-soft: rgba(110, 134, 168, 0.12);
}

/* ---------- 首屏 ---------- */
.page-faq .kb-hero-wrap {
  padding-top: calc(var(--baseline) * 1.5);
}

.page-faq .kb-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--baseline) * 1.6);
  margin-top: calc(var(--baseline) * 1.5);
}

.page-faq .kb-hero-copy {
  min-width: 0;
}

.page-faq .kb-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--stardust);
  margin: 0 0 calc(var(--baseline) * 0.9);
  max-width: 18ch;
}

.page-faq .kb-hero .lede {
  max-width: 48ch;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.9;
  margin: 0;
}

.page-faq .kb-hero-media {
  margin: 0;
  border: 1px solid var(--faq-line);
}

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

@media (min-width: 900px) {
  .page-faq .kb-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    gap: calc(var(--baseline) * 3);
    align-items: end;
  }

  .page-faq .kb-hero-media {
    margin-bottom: 6px;
  }
}

/* ---------- 章节 ---------- */
.page-faq .chapter {
  position: relative;
}

.page-faq .chapter-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mist);
  margin: 0 0 12px;
}

@media (min-width: 960px) {
  .page-faq .chapter {
    padding-left: 72px;
  }

  .page-faq .chapter-note {
    position: absolute;
    left: 0;
    top: 4px;
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: 0.24em;
  }
}

.page-faq .kb-intro {
  max-width: 58ch;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.95;
  margin: calc(var(--baseline) * 1.25) 0 0;
}

/* ---------- 分类入口网格 ---------- */
.page-faq .kb-cats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line);
  margin-top: calc(var(--baseline) * 1.5);
}

.page-faq .kb-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 30px;
  background: var(--deep-space);
  text-decoration: none;
  color: inherit;
  transition: background 0.35s ease;
}

.page-faq .kb-cat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  width: 34px;
  height: 1px;
  background: var(--star-gold);
  opacity: 0.55;
  transition: width 0.35s ease, opacity 0.35s ease;
}

.page-faq .kb-cat:hover::before,
.page-faq .kb-cat:focus-visible::before {
  width: calc(100% - 44px);
  opacity: 1;
}

.page-faq .kb-cat:hover {
  background: var(--night-blue);
}

.page-faq .kb-cat:focus-visible {
  outline: 1px solid var(--star-gold);
  outline-offset: -3px;
}

.page-faq .kb-cat-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--star-gold);
}

.page-faq .kb-cat-name {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1.02rem;
  color: var(--stardust);
  letter-spacing: 0.02em;
}

.page-faq .kb-cat-desc {
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 620px) {
  .page-faq .kb-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-faq .kb-cats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .kb-group {
  margin-top: calc(var(--baseline) * 2.25);
  min-width: 0;
}

.page-faq .kb-group-title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1.12rem;
  letter-spacing: 0.02em;
  color: var(--stardust);
  margin: 0;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--star-gold);
}

.page-faq .kb-group-lede {
  max-width: 60ch;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.95;
  margin: 16px 0 0;
}

.page-faq .faq-list {
  margin-top: 6px;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 19px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--stardust);
  transition: color 0.3s ease;
}

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

.page-faq .faq-q:hover {
  color: var(--star-gold);
}

.page-faq .faq-q:focus-visible {
  outline: 1px solid var(--star-gold);
  outline-offset: 3px;
}

.page-faq .faq-mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-left: auto;
  margin-top: 8px;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--star-gold);
}

.page-faq .faq-mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 1px;
}

.page-faq .faq-mark::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 14px;
  transition: transform 0.3s ease;
}

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

.page-faq .faq-a {
  max-width: var(--faq-measure);
  padding: 0 0 22px;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 2;
}

.page-faq .faq-a p {
  margin: 0 0 1.1em;
}

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

.page-faq .faq-a strong {
  font-weight: 500;
  color: var(--stardust);
  word-break: break-all;
}

/* ---------- 使用记录与反馈 ---------- */
.page-faq .kb-record {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--baseline) * 1.5);
  margin-top: calc(var(--baseline) * 1.5);
  align-items: center;
}

.page-faq .kb-record-media {
  margin: 0;
  border: 1px solid var(--faq-line);
}

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

.page-faq .kb-record-lede {
  max-width: 46ch;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 2;
  margin: 0;
}

@media (min-width: 900px) {
  .page-faq .kb-record {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: calc(var(--baseline) * 2.5);
  }
}

/* ---------- 标签页 ---------- */
.page-faq .kb-tabs {
  margin-top: calc(var(--baseline) * 2.25);
}

.page-faq .kb-tabs .tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  border-bottom: 1px solid var(--faq-line);
  margin-bottom: calc(var(--baseline) * 1.5);
}

.page-faq .kb-tabs .tab {
  appearance: none;
  border: 0;
  background: transparent;
  position: relative;
  padding: 14px 20px;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  letter-spacing: 0.02em;
  color: var(--mist);
  cursor: pointer;
  transition: color 0.3s ease, background 0.3s ease;
}

.page-faq .kb-tabs .tab:hover {
  color: var(--stardust);
}

.page-faq .kb-tabs .tab:focus-visible {
  outline: 1px solid var(--star-gold);
  outline-offset: -2px;
}

.page-faq .kb-tabs .tab[aria-selected="true"] {
  color: var(--star-gold);
  background: rgba(28, 61, 110, 0.35);
}

.page-faq .kb-tabs .tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--star-gold);
}

.page-faq .kb-tabs .tabpanel {
  max-width: var(--faq-measure);
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 2;
}

.page-faq .kb-tabs .tabpanel p {
  margin: 0 0 1.1em;
}

.page-faq .kb-tabs .tabpanel p:last-child {
  margin-bottom: 0;
}

.page-faq .kb-tabs .tabpanel strong {
  font-weight: 500;
  color: var(--stardust);
  word-break: break-all;
}

/* ---------- 流程 ---------- */
.page-faq .kb-rail {
  display: block;
  width: 100%;
  height: 40px;
  margin-top: calc(var(--baseline) * 1.75);
}

.page-faq .kb-steps {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line);
  border-top: 0;
  margin: 0;
  padding: 0;
}

.page-faq .kb-step {
  background: var(--deep-space);
  padding: 28px 24px 32px;
  min-width: 0;
}

.page-faq .kb-step-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--star-gold);
  margin-bottom: 14px;
}

.page-faq .kb-step-title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--stardust);
  margin: 0 0 12px;
}

.page-faq .kb-step p {
  margin: 0;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.95;
}

@media (min-width: 820px) {
  .page-faq .kb-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 后续提示 ---------- */
.page-faq .kb-after {
  max-width: var(--faq-measure);
  margin-top: calc(var(--baseline) * 1.75);
}

.page-faq .kb-after p {
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 2;
  margin: 0 0 1.1em;
}

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

.page-faq .kb-after strong {
  font-weight: 500;
  color: var(--stardust);
}

.page-faq .kb-after a {
  color: var(--star-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(243, 196, 98, 0.4);
  transition: border-color 0.3s ease;
}

.page-faq .kb-after a:hover {
  border-bottom-color: var(--star-gold);
}

@media (min-width: 960px) {
  .page-faq .kb-after {
    padding-left: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .kb-cat,
  .page-faq .faq-q,
  .page-faq .kb-tabs .tab,
  .page-faq .kb-after a {
    transition: none;
  }

  .page-faq .faq-mark::after {
    transition: none;
  }

  .page-faq .kb-cat::before {
    transition: none;
  }
}
<<<END>>>