/* ===== 常见问答页 · 页面专属样式 ===== */
.page-faq {
  --faq-line: 1px solid rgba(20, 17, 15, 0.14);
  --faq-line-strong: 1px solid rgba(20, 17, 15, 0.3);
  --faq-side-w: 244px;
  background-color: var(--snow);
  color: var(--ink);
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-top: clamp(18px, 2.5vw, 30px);
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
}

.page-faq .breadcrumb-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--saffron);
}

.page-faq .breadcrumb-sep {
  color: var(--warmgray);
}

/* 首屏：左窄栏图片 + 右宽栏标题 */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 44px);
  padding: clamp(22px, 3.5vw, 44px) 0 clamp(26px, 4vw, 52px);
  border-bottom: 2px solid var(--indigo);
}

.page-faq .faq-hero-media {
  margin: 0;
  position: relative;
  overflow: hidden;
  background-color: var(--indigo);
  max-width: 320px;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

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

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--saffron);
}

.page-faq .faq-title {
  margin: 0 0 18px;
  font-size: clamp(29px, 5vw, 58px);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .faq-title strong {
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--indigo);
}

.page-faq .faq-lede {
  max-width: 41em;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(220px, 290px) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-hero-media {
    max-width: none;
  }

  .page-faq .faq-lede {
    font-size: 16px;
  }
}

/* 主体：左侧主题索引 + 右侧问答 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 54px);
  padding: clamp(30px, 5vw, 62px) 0 clamp(48px, 7vw, 96px);
}

.page-faq .faq-side-inner {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-faq .toc-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.page-faq .faq-toc-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc-link {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: var(--faq-line);
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.24s ease;
}

.page-faq .faq-toc-link:hover,
.page-faq .faq-toc-link:focus-visible {
  color: var(--saffron);
  padding-left: 6px;
}

.page-faq .faq-toc-link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .faq-toc-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

@media (min-width: 560px) and (max-width: 999px) {
  .page-faq .faq-toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
  }

  .page-faq .faq-side-inner {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-toc-link {
    grid-template-columns: 2.2em minmax(0, 1fr);
    font-size: 13.5px;
  }
}

/* 问答分组 */
.page-faq .faq-group {
  scroll-margin-top: 28px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 6vw, 76px);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-top: 16px;
  border-top: 2px solid var(--indigo);
  margin-bottom: 4px;
}

.page-faq .faq-group-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 31px);
  font-weight: 300;
  line-height: 1.32;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.page-faq .faq-list {
  border-top: var(--faq-line);
  margin-top: 12px;
}

/* 问答条目 */
.page-faq .faq-item {
  border-bottom: var(--faq-line);
  transition: border-color 0.24s ease, background-color 0.24s ease;
}

.page-faq .faq-item[data-open] {
  border-bottom-color: var(--gold);
  background: linear-gradient(90deg, rgba(216, 166, 60, 0.14), rgba(216, 166, 60, 0) 68%);
}

.page-faq .faq-q-wrap {
  margin: 0;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 18px 0;
  margin: 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.2s ease;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .faq-q::after {
  content: "";
  flex: 0 0 auto;
  width: 0;
  height: 0;
  margin-top: 9px;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--warmgray);
  transition: transform 0.24s ease, border-top-color 0.24s ease;
}

.page-faq .faq-item[data-open] .faq-q::after {
  transform: rotate(180deg);
  border-top-color: var(--orange);
}

@media (min-width: 760px) {
  .page-faq .faq-q {
    font-size: 17.5px;
    padding: 20px 0;
  }
}

/* 答案 */
.page-faq .faq-a {
  padding-bottom: 22px;
}

.page-faq .faq-a .accordion-inner {
  max-width: 60ch;
  padding-left: 16px;
  border-left: 2px solid var(--warmgray);
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-a p + p {
  margin-top: 12px;
}

.page-faq .faq-a .link-more {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--saffron);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color 0.2s ease;
}

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

/* 版本分组配图 */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 14px;
  border-top: var(--faq-line-strong);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  background-color: var(--indigo-2);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  max-width: 52em;
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.04em;
  color: var(--muted-2);
}

/* 页尾行动条 */
.page-faq .faq-cta {
  margin-top: clamp(44px, 6vw, 80px);
  padding: clamp(24px, 4vw, 42px);
  background-color: var(--indigo);
  border-left: 4px solid var(--gold);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.page-faq .faq-cta-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 244, 239, 0.82);
}

.page-faq .faq-cta-btn {
  justify-self: start;
}

@media (min-width: 760px) {
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }

  .page-faq .faq-cta-text {
    font-size: 16px;
  }
}

/* 动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q::after,
  .page-faq .faq-item,
  .page-faq .faq-toc-link {
    transition: none;
  }
}