.page-faq {
  display: block;
  padding-bottom: 4.5rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 1.75rem 0 2rem;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(180deg, rgba(18, 56, 90, .62) 0%, rgba(11, 27, 43, 0) 82%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.5rem;
}

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

.page-faq h1 {
  margin: .8rem 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-faq .lede {
  margin: 1rem 0 0;
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.65rem;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-stats__cell {
  padding: .85rem .7rem .9rem;
  background: rgba(11, 27, 43, .78);
}

.page-faq .faq-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4vw, 1.7rem);
  line-height: 1.1;
  color: var(--paper);
}

.page-faq .faq-stats__label {
  display: block;
  margin-top: .3rem;
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--steel);
}

/* ---------- 区块外壳 ---------- */
.page-faq .faq-block {
  padding: 2.75rem 0 0;
}

.page-faq .faq-block__head {
  display: grid;
  gap: .55rem;
  margin-bottom: 1.4rem;
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.8vw, 2.3rem);
  line-height: 1.18;
  color: var(--paper);
}

.page-faq .faq-block__note {
  margin: 0;
  max-width: 48rem;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .sub-title {
  margin: 1.5rem 0 .6rem;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

/* ---------- 分类区 ---------- */
.page-faq .cat-layout {
  display: grid;
  gap: 1.25rem;
}

.page-faq .cat-figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-faq .cat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .cat-tile {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: .95rem .85rem 1.05rem;
  background: var(--ink-2);
  color: var(--mist);
  text-decoration: none;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .cat-tile:hover {
  background: var(--ink-4);
  transform: translateY(-2px);
}

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

.page-faq .cat-tile__idx {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .cat-tile__name {
  font-family: var(--font-title);
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .cat-tile__desc {
  font-size: .78rem;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 旧版导出收藏专题 ---------- */
.page-faq .migrate-grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .step {
  display: grid;
  grid-template-columns: 2.85rem minmax(0, 1fr);
  gap: .9rem;
  padding: 1rem 0 1.1rem;
  border-bottom: 1px solid var(--line);
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  padding-top: .2rem;
  color: var(--amber);
}

.page-faq .step__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .step__text {
  margin: .4rem 0 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .path-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem .85rem;
  margin-top: 1.15rem;
  padding: .8rem .9rem;
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
}

.page-faq .path-bar__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .path-bar__code {
  flex: 1 1 14rem;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .path-bar__btn {
  flex: none;
}

.page-faq .copy-btn {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: .78rem;
  padding: .38rem .75rem;
  cursor: pointer;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: var(--amber);
  color: var(--amber);
}

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

.page-faq .copy-btn[data-copied="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .migrate-figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-faq .err-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .err-item {
  display: grid;
  gap: .2rem;
  padding: .8rem 0 .85rem;
  border-bottom: 1px solid var(--line);
}

.page-faq .err-item__sym {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .02em;
  color: var(--amber);
}

.page-faq .err-item__fix {
  font-size: .88rem;
  line-height: 1.78;
  color: var(--steel);
}

/* ---------- 问答区 ---------- */
.page-faq .qa-layout {
  display: grid;
  gap: 1.5rem;
}

.page-faq .qa-main {
  min-width: 0;
}

.page-faq .qa-group + .qa-group {
  margin-top: 1.75rem;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 .7rem;
  scroll-margin-top: 6rem;
  font-family: var(--font-title);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-faq .qa-group__title::before {
  content: "";
  flex: none;
  width: 1.5rem;
  height: 2px;
  background: var(--amber);
}

.page-faq .qa {
  background: var(--paper);
  border: 1px solid rgba(11, 27, 43, .14);
}

.page-faq .qa + .qa {
  border-top: none;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) 1rem;
  align-items: center;
  gap: .7rem;
  padding: .9rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: background var(--t) var(--ease);
}

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

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

.page-faq .qa__q:hover {
  background: rgba(255, 154, 31, .12);
}

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

.page-faq .qa__idx {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--amber-deep);
}

.page-faq .qa__sign {
  position: relative;
  width: 1rem;
  height: 1rem;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--amber-deep);
  transition: transform var(--t) var(--ease);
}

.page-faq .qa__sign::before {
  left: 0;
  right: 0;
  top: .44rem;
  height: 2px;
}

.page-faq .qa__sign::after {
  top: 0;
  bottom: 0;
  left: .44rem;
  width: 2px;
}

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

.page-faq .qa__a {
  padding: 0 1.15rem 1.15rem 3.85rem;
  font-size: .89rem;
  line-height: 1.85;
  color: #2b3d4f;
}

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

/* ---------- 旁注 ---------- */
.page-faq .qa-aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-faq .side-card {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 1.05rem 1rem 1.15rem;
}

.page-faq .side-card--accent {
  border-color: var(--line-strong);
  background-image: var(--grad-deep);
}

.page-faq .side-card__title {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .side-card__text {
  margin: 0;
  font-size: .85rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .side-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .side-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .58rem .65rem;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: .86rem;
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .side-links a:hover {
  border-color: var(--amber);
  background: rgba(255, 154, 31, .1);
  color: var(--paper);
}

.page-faq .side-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 版本差异 ---------- */
.page-faq .ver-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .ver-item {
  background: var(--ink-3);
  padding: 1.05rem .95rem 1.2rem;
}

.page-faq .ver-tag {
  display: inline-block;
  margin-bottom: .55rem;
  padding: .2rem .5rem;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-faq .ver-item__title {
  margin: 0 0 .4rem;
  font-family: var(--font-title);
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .ver-item__text {
  margin: 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 反馈区 ---------- */
.page-faq .feedback-layout {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem 1.15rem 1.6rem;
  border: 1px solid var(--line-strong);
  background-image: var(--grad-deep);
}

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

.page-faq .feedback-copy .faq-block__note + .faq-block__note {
  margin-top: .8rem;
}

.page-faq .fb-points {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .fb-point {
  display: grid;
  gap: .2rem;
  padding: .75rem .25rem .8rem;
  background: rgba(11, 27, 43, .35);
}

.page-faq .fb-point__key {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--cyan);
}

.page-faq .fb-point__val {
  font-size: .87rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

.page-faq .feedback-side {
  align-content: start;
}

/* ---------- 自助排查清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .check-item {
  display: grid;
  grid-template-columns: 3.1rem minmax(0, 1fr);
  align-items: start;
  gap: .5rem;
  padding: .95rem .5rem 1rem;
  background: var(--ink);
}

.page-faq .check-item__num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1.1;
  color: var(--amber);
}

.page-faq .check-item__text {
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-block--last {
  padding-bottom: .5rem;
}

/* ---------- 图片响应式 ---------- */
.page-faq .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-2);
}

.page-faq .media-frame__caption {
  font-family: var(--font-mono);
  font-size: .72rem;
  line-height: 1.6;
  padding: .55rem .7rem .6rem;
  color: var(--steel);
  border-top: 1px solid var(--line);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero {
    padding-top: 2.25rem;
  }

  .page-faq .qa__a {
    padding-left: 4.1rem;
  }

  .page-faq .fb-point {
    grid-template-columns: minmax(0, 7rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 2rem;
  }

  .page-faq .faq-block {
    padding-top: 3.5rem;
  }

  .page-faq .faq-block__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 2rem;
  }

  .page-faq .cat-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: stretch;
    gap: 1.5rem;
  }

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

  .page-faq .migrate-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 2rem;
  }

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

  .page-faq .feedback-layout {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 2rem;
    padding: 1.9rem 1.75rem 2rem;
  }
}

@media (min-width: 1040px) {
  .page-faq .qa-layout {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 2rem;
    align-items: start;
  }

  .page-faq .qa-aside {
    position: sticky;
    top: 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .cat-tile,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .copy-btn,
  .page-faq .side-links a {
    transition: none;
  }

  .page-faq .cat-tile:hover {
    transform: none;
  }
}