.page-faq {
  --faq-rail-w: 232px;
  --faq-gap: clamp(28px, 4vw, 60px);
  background: var(--paper);
  color: var(--ink);
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--blue);
}
.page-faq .breadcrumb a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--cool);
}
.page-faq .breadcrumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}
.page-faq .crumb-sep {
  color: var(--mist);
}
.page-faq .crumb-current {
  color: var(--ink);
  opacity: 0.6;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding: 26px 0 clamp(32px, 5vw, 54px);
  border-bottom: 2px solid var(--deep);
}
.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(29px, 5vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
}
.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
}
.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-side {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  align-content: end;
}
.page-faq .glance-item {
  display: grid;
  gap: 5px;
  padding: 16px 16px 18px;
  background: #ffffff;
  border: 1px solid var(--cool);
  border-radius: 2px;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.page-faq .glance-item:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
}
.page-faq .glance-num {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  color: var(--blue);
}
.page-faq .glance-label {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.page-faq .glance-desc {
  font-size: 12.5px;
  line-height: 1.6;
  opacity: 0.68;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 38px) 0 0;
}
.page-faq .faq-figure .figure-media {
  display: block;
  overflow: hidden;
  border: 1px solid var(--cool);
  background: var(--cool);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure--wide .figure-media {
  max-height: 290px;
}
.page-faq .faq-figure--wide img {
  height: 290px;
}
.page-faq .faq-figure--tall {
  max-width: 480px;
}
.page-faq .faq-figure .figure-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  opacity: 0.62;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding: clamp(32px, 5vw, 56px) 0 clamp(44px, 6vw, 84px);
}
.page-faq .faq-rail {
  display: none;
}
.page-faq .rail-title {
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--deep);
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.6;
}
.page-faq .rail-list {
  display: grid;
  gap: 2px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .rail-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid var(--cool);
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}
.page-faq .rail-link:hover {
  border-left-color: var(--orange);
  background: #ffffff;
  color: var(--blue);
}
.page-faq .rail-count {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--blue);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(48px, 7vw, 88px);
}
.page-faq .block-head {
  padding-top: 16px;
  border-top: 2px solid var(--deep);
}
.page-faq .block-num {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}
.page-faq .block-title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.02em;
}
.page-faq .block-intro {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.78;
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--cool);
}
.page-faq .step:first-child {
  border-top: 1px solid var(--cool);
}
.page-faq .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--orange);
  border-radius: 50%;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  color: var(--orange);
}
.page-faq .step-title {
  margin: 4px 0 0;
  font-size: 16.5px;
  font-weight: 700;
}
.page-faq .step-body p {
  margin: 8px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.78;
}

/* ---------- 可展开问答 ---------- */
.page-faq .qa-list {
  margin-top: 28px;
  border-top: 1px solid var(--cool);
}
.page-faq .qa-item {
  border-bottom: 1px solid var(--cool);
  border-left: 3px solid transparent;
  transition: background 0.25s var(--ease), border-left-color 0.25s var(--ease);
}
.page-faq .qa-item[open] {
  background: #ffffff;
  border-left-color: var(--orange);
}
.page-faq .qa-q {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 16px 14px 16px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
}
.page-faq .qa-q::-webkit-details-marker {
  display: none;
}
.page-faq .qa-q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-num);
  font-size: 19px;
  color: var(--blue);
}
.page-faq .qa-item[open] .qa-q::after {
  content: "–";
  color: var(--orange);
}
.page-faq .qa-index {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue);
}
.page-faq .qa-a {
  padding: 0 16px 18px 46px;
}
.page-faq .qa-a p {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.82;
}
.page-faq .qa-a p + p {
  margin-top: 10px;
}
.page-faq .qa-link {
  display: inline-block;
  margin-top: 12px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--cyan);
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--blue);
  text-decoration: none;
}
.page-faq .qa-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 速查表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: 26px;
  overflow-x: auto;
  border: 1px solid var(--cool);
  background: #ffffff;
  box-shadow: var(--shadow-card);
}
.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}
.page-faq .faq-table caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--cool);
  text-align: left;
  font-size: 14.5px;
  line-height: 1.6;
}
.page-faq .faq-table thead th {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.page-faq .faq-table thead th:first-child {
  background: var(--deep);
  color: var(--paper);
}
.page-faq .faq-table thead th.col-ios {
  background: var(--yellow);
  color: var(--ink);
}
.page-faq .faq-table thead th.col-android {
  background: var(--red);
  color: #ffffff;
}
.page-faq .faq-table tbody th {
  font-weight: 700;
}
.page-faq .faq-table td.path {
  font-family: var(--font-num);
  font-size: 13.5px;
  color: var(--blue);
}
.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}
.page-faq .faq-table tbody tr:hover {
  background: rgba(22, 194, 200, 0.09);
}
.page-faq .faq-table tbody tr:hover td:nth-child(2) {
  box-shadow: inset 2px 0 0 var(--yellow);
}
.page-faq .faq-table tbody tr:hover td:nth-child(3) {
  box-shadow: inset 2px 0 0 var(--red);
}

/* ---------- 自查清单 ---------- */
.page-faq .check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 20px 22px;
  list-style: none;
  background: var(--deep);
  color: var(--paper);
}
.page-faq .check-list li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.72;
}
.page-faq .check-list li::before {
  content: "✓";
  font-family: var(--font-num);
  color: var(--cyan);
}

/* ---------- 联系 ---------- */
.page-faq .faq-block--support .block-head {
  border-top-color: var(--orange);
}
.page-faq .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 24px;
}
.page-faq .support-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--cool);
  border-top: 3px solid var(--blue);
  box-shadow: var(--shadow-card);
}
.page-faq .support-card:nth-child(2) {
  border-top-color: var(--orange);
}
.page-faq .support-card:nth-child(3) {
  border-top-color: var(--cyan);
}
.page-faq .support-label {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.55;
}
.page-faq .support-value {
  font-family: var(--font-num);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--blue);
  text-decoration: none;
  word-break: break-word;
}
.page-faq a.support-value:hover {
  color: var(--orange);
}
.page-faq .support-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  opacity: 0.8;
}

.page-faq .faq-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 26px;
}
.page-faq .faq-link-item {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: #ffffff;
  border: 1px solid var(--cool);
  border-left: 3px solid var(--cool);
  text-decoration: none;
  color: var(--ink);
  transition: border-left-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-faq .faq-link-item:hover {
  border-left-color: var(--orange);
  transform: translateY(-3px);
}
.page-faq .faq-link-item strong {
  font-size: 15px;
  font-weight: 700;
}
.page-faq .faq-link-item span {
  font-size: 13px;
  line-height: 1.65;
  opacity: 0.66;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: end;
  }
  .page-faq .qa-a {
    padding-left: 60px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap);
    align-items: start;
  }
  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h-solid) + 24px);
  }
  .page-faq .qa-list,
  .page-faq .steps,
  .page-faq .faq-table-wrap,
  .page-faq .check-list,
  .page-faq .support-grid {
    max-width: 46rem;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-figure--wide .figure-media,
  .page-faq .faq-figure--wide img {
    max-height: 200px;
    height: 200px;
  }
  .page-faq .qa-a {
    padding-left: 16px;
  }
  .page-faq .step {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 12px;
  }
}