.page-faq {
  background: var(--ink);
  color: var(--paper-dim);
  padding-bottom: var(--section-gap);
  overflow-x: hidden;
}

.page-faq .container {
  max-width: var(--maxw);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 4vw, 36px);
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .breadcrumbs__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
  padding-bottom: clamp(32px, 5vw, 56px);
}

.page-faq .faq-hero__label {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  margin: 0 0 16px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.06;
  color: var(--paper);
  margin: 0 0 var(--gap-m);
}

.page-faq .faq-hero__intro {
  max-width: 44em;
  margin: 0 0 clamp(24px, 3vw, 36px);
  font-size: 17px;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* 检索框 */
.page-faq .faq-search {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 16px 18px 14px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-search__input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 8px 0 12px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  outline: none;
  transition: border-color .2s var(--ease);
}

.page-faq .faq-search__input::placeholder {
  color: var(--mist);
}

.page-faq .faq-search__input:focus {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-search__hint {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* 首屏图 */
.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 auto;
  width: 64px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

/* ---------- 分类目录条 ---------- */
.page-faq .faq-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-cats > li {
  background: var(--ink);
}

.page-faq .faq-cat a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  text-decoration: none;
  color: var(--paper-dim);
  min-height: 104px;
  box-sizing: border-box;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-cat a:hover,
.page-faq .faq-cat a:focus-visible {
  background: var(--card);
  color: var(--paper);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cat__meta {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 正文双栏 ---------- */
.page-faq .faq-body {
  margin-top: clamp(48px, 7vw, 88px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

/* 左侧目录 */
.page-faq .faq-toc__label {
  margin: 0 0 14px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-toc__list a {
  display: block;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-faq .faq-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-chapter + .faq-chapter {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-faq .faq-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-faq .faq-chapter__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  flex: none;
}

.page-faq .faq-chapter__title {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-chapter__lede {
  max-width: 40em;
  margin: 0 0 clamp(20px, 3vw, 28px);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-chapter__more {
  max-width: 40em;
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-faq .faq-chapter__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-chapter__more a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 2px 16px 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color .2s var(--ease);
}

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

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

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-item__mark {
  flex: none;
  width: 12px;
  height: 12px;
  position: relative;
  margin-top: 8px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-faq .faq-item__mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  opacity: 1;
  transition: opacity .2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
}

.page-faq .faq-item p {
  max-width: 42em;
  margin: 0;
  padding: 0 32px 20px 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table-wrap {
  margin: 0 0 clamp(24px, 3vw, 32px);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-table thead th {
  text-align: left;
  padding: 12px 14px;
  background: var(--card);
  color: var(--cyan);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.14em;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-faq .faq-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--paper-dim);
  vertical-align: top;
  line-height: 1.6;
}

.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody tr {
  transition: background .18s var(--ease);
}

.page-faq .faq-table tbody tr:hover {
  background: var(--card);
}

.page-faq .faq-table--glossary td:first-child {
  color: var(--violet);
  white-space: nowrap;
  width: 1%;
}

.page-faq .faq-table--glossary td:last-child {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0;
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-chapter__fig {
  margin: clamp(24px, 3vw, 32px) 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-chapter__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-contact__key {
  flex: none;
  min-width: 82px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__copy {
  flex: none;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-faq .faq-contact__copy.is-copied {
  color: var(--violet);
  border-color: var(--violet);
}

/* ---------- 显现动画 ---------- */
.page-faq .faq-chapter[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}

.page-faq .faq-chapter.is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-hero__intro {
    font-size: 18px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: stretch;
  }

  .page-faq .faq-hero__media {
    align-self: stretch;
    display: flex;
  }

  .page-faq .faq-hero__media img {
    height: 100%;
    object-fit: cover;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: clamp(36px, 4vw, 64px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 100px;
    align-self: start;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

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

  .page-faq .faq-toc__list li:first-child {
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-toc__list a {
    padding: 10px 0;
    border-bottom: 0;
    position: relative;
  }

  .page-faq .faq-toc__list a::before {
    content: "";
    position: absolute;
    left: -12px;
    top: 50%;
    width: 4px;
    height: 1px;
    background: var(--cyan);
    opacity: 0;
    transition: opacity .2s var(--ease);
  }

  .page-faq .faq-toc__list a:hover::before,
  .page-faq .faq-toc__list a:focus-visible::before {
    opacity: 1;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chapter[data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
</PAGE_CSS>