.page-faq {
  --faq-gap: 24px;
  --faq-radius: 20px;
  padding-bottom: 88px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: 24px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 18px;
  padding: 28px 0 8px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 26ch;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--white-000);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
}

.page-faq .faq-quickstat {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-quickstat li {
  background: var(--ink-800);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-faq .faq-quickstat .num {
  font-size: 26px;
  line-height: 1;
  color: var(--cyan-400);
}

.page-faq .faq-quickstat li > span:last-child {
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate-400);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding-top: 56px;
}

.page-faq .faq-section__head {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--white-000);
}

.page-faq .faq-section__lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-body);
}

/* ---------- 排查时间线 ---------- */
.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-timeline li {
  background: var(--ink-950);
  padding: 20px;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 6px 16px;
  transition: background var(--ease);
}

.page-faq .faq-timeline li:hover {
  background: var(--ink-800);
}

.page-faq .faq-timeline__no {
  grid-row: 1 / 3;
  font-size: 15px;
  color: var(--cyan-400);
  padding-top: 2px;
}

.page-faq .faq-timeline h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--white-000);
}

.page-faq .faq-timeline p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-body);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 24px 0 0;
  padding: 0;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.04);
}

.page-faq .faq-figure--inline img {
  aspect-ratio: 5 / 3;
}

.page-faq .faq-figure figcaption {
  padding: 12px 18px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-400);
  border-top: 1px solid var(--ink-line);
}

/* ---------- 目录布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-index {
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--ink-800);
  padding: 20px;
}

.page-faq .faq-index ol {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index a {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  color: var(--text-body);
  text-decoration: none;
  transition: background var(--ease), color var(--ease);
}

.page-faq .faq-index a .num {
  font-size: 12px;
  color: var(--slate-400);
  transition: color var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: var(--ink-700);
  color: var(--white-000);
}

.page-faq .faq-index a:hover .num,
.page-faq .faq-index a:focus-visible .num {
  color: var(--cyan-400);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-400);
  border-top: 1px solid var(--ink-line);
  padding-top: 14px;
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 44px;
  min-width: 0;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 900;
  color: var(--white-000);
  letter-spacing: 0.02em;
}

.page-faq .faq-group__title .num {
  font-size: 13px;
  color: var(--ink-950);
  background: var(--cyan-400);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--ink-line);
  border-left: 3px solid var(--ink-line);
  border-radius: 16px;
  background: var(--ink-800);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .faq-item:hover {
  background: var(--ink-700);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan-400);
  background: var(--ink-700);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20px;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white-000);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-faq .faq-item__marker {
  position: relative;
  width: 20px;
  height: 20px;
  justify-self: end;
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--slate-400);
  transition: transform var(--ease), background var(--ease);
}

.page-faq .faq-item__marker::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.page-faq .faq-item__marker::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
}

.page-faq .faq-item[open] .faq-item__marker::before,
.page-faq .faq-item[open] .faq-item__marker::after {
  background: var(--cyan-400);
}

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

.page-faq .faq-item__body {
  display: grid;
  gap: 12px;
  padding: 0 18px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-body);
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  display: grid;
  gap: 10px;
  border-top: 1px dashed var(--ink-line);
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 9px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate-400);
}

.page-faq .faq-steps li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-radius: 2px;
  background: var(--cyan-400);
}

/* ---------- 对照表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--ink-800);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table__caption {
  caption-side: top;
  text-align: left;
  padding: 16px 18px 4px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--slate-400);
}

.page-faq .faq-table th[scope="col"] {
  text-align: left;
  padding: 14px 18px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-400);
  background: var(--ink-700);
  border-bottom: 1px solid var(--ink-line);
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(31, 50, 44, 0.42);
}

.page-faq .faq-table td,
.page-faq .faq-table tbody th {
  text-align: left;
  padding: 14px 18px;
  vertical-align: top;
  line-height: 1.6;
  border-bottom: 1px solid var(--ink-line);
  color: var(--text-body);
  font-weight: 400;
}

.page-faq .faq-table tbody th {
  color: var(--white-000);
  font-weight: 700;
  white-space: nowrap;
}

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

.page-faq .faq-table .num {
  color: var(--cyan-400);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 24px;
  padding: 26px 22px;
  border-radius: var(--faq-radius);
  background: var(--paper-100);
  color: var(--ink-950);
}

.page-faq .faq-contact .meta-label {
  color: #5A655F;
}

.page-faq .faq-contact__lead h2 {
  margin: 8px 0 10px;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.15;
  font-weight: 900;
  color: var(--ink-950);
}

.page-faq .faq-contact__lead p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.7;
  color: #3A453F;
}

.page-faq .faq-contact__list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
  border-radius: 16px;
  overflow: hidden;
}

.page-faq .faq-contact__list > div {
  background: var(--paper-100);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}

.page-faq .faq-contact__list dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6B756F;
}

.page-faq .faq-contact__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-950);
}

.page-faq .faq-contact__list dd a {
  color: var(--ink-950);
  font-family: var(--font-mono);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: background var(--ease), color var(--ease);
}

.page-faq .faq-contact__list dd a:hover,
.page-faq .faq-contact__list dd a:focus-visible {
  background: var(--coral-500);
  color: var(--paper-100);
  text-decoration: none;
}

.page-faq .faq-contact__foot {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #3A453F;
}

.page-faq .faq-contact__foot a {
  color: var(--ink-950);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-quickstat {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-timeline li {
    padding: 24px;
  }

  .page-faq .faq-contact {
    padding: 34px 32px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq {
    padding-bottom: 120px;
  }

  .page-faq .faq-section {
    padding-top: 72px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 24px 48px;
    align-items: end;
  }

  .page-faq .faq-hero .meta-label,
  .page-faq .faq-hero h1,
  .page-faq .faq-hero__lede {
    grid-column: 1;
  }

  .page-faq .faq-quickstat {
    grid-column: 2;
    grid-row: 1 / 4;
    align-self: stretch;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 0;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-contact__foot {
    grid-column: 1 / -1;
    border-top: 1px solid var(--paper-line);
    padding-top: 18px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-groups {
    gap: 52px;
  }

  .page-faq .faq-item summary {
    font-size: 17px;
    padding: 18px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__marker::before,
  .page-faq .faq-item__marker::after,
  .page-faq .faq-index a,
  .page-faq .faq-index a .num,
  .page-faq .faq-timeline li,
  .page-faq .faq-contact__list dd a {
    transition: none;
  }
}