.page-faq {
  background: var(--bg-page);
}

.page-faq .section {
  padding: 46px 0;
}

/* 面包屑 */
.page-faq__crumb {
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--text-sub);
}
.page-faq__crumb nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-faq__crumb a {
  color: var(--accent-red);
  text-decoration: none;
}
.page-faq__crumb a:hover {
  text-decoration: underline;
}
.page-faq__crumb-sep {
  color: var(--border);
}

/* 标题区 */
.page-faq__head {
  padding: 28px 0 0;
  text-align: center;
}
.page-faq__head h1 {
  font-family: var(--font-head);
  font-size: clamp(25px, 4.2vw, 38px);
  line-height: 1.35;
  color: var(--text-main);
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}
.page-faq__lead {
  max-width: 720px;
  margin: 0 auto 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-sub);
}
.page-faq__head-img {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  margin: 0 auto;
  object-fit: cover;
}

/* 快速索引条 */
.page-faq__quicknav {
  background: var(--bg-dark-blue);
  margin-top: 26px;
  border-bottom: 3px solid var(--status-yellow);
}
.page-faq__quicknav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 30px;
  padding: 14px 0;
}
.page-faq__quicknav-link {
  color: var(--on-dark);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.page-faq__quicknav-link:hover,
.page-faq__quicknav-link:focus {
  color: var(--status-yellow);
  border-bottom-color: var(--status-yellow);
}

/* 常见问题折叠面板 */
.page-faq__faq-section {
  background: var(--bg-page);
}
.page-faq__faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 10px;
}
.page-faq__faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-orange);
  border-radius: 2px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-faq__faq-item:hover {
  border-color: var(--accent-orange);
  box-shadow: 0 4px 16px rgba(51, 51, 51, 0.06);
}
.page-faq__faq-item[open] {
  border-left-color: var(--accent-red);
}
.page-faq__faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 16px 46px 16px 18px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  position: relative;
}
.page-faq__faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq__faq-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-red);
  flex: 0 0 auto;
  padding-top: 2px;
}
.page-faq__faq-q {
  flex: 1 1 auto;
}
.page-faq__faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 21px;
  color: var(--accent-orange);
  line-height: 1;
}
.page-faq__faq-item[open] summary::after {
  content: "−";
  color: var(--accent-red);
}
.page-faq__faq-item > p {
  margin: 0;
  padding: 0 22px 18px 44px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
}
.page-faq__faq-item a {
  color: var(--accent-red);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 检索步骤 */
.page-faq__steps-section {
  padding: 56px 0;
}
.page-faq__steps-section .section-kicker,
.page-faq__steps-section .section-title {
  color: var(--on-dark);
}
.page-faq__steps-section .section-kicker {
  color: var(--status-yellow);
}
.page-faq__steps-section .section-desc {
  color: var(--on-green);
}
.page-faq__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}
.page-faq__step {
  background: rgba(245, 241, 232, 0.05);
  border: 1px solid rgba(245, 241, 232, 0.13);
  border-radius: 2px;
  padding: 20px 18px 18px;
}
.page-faq__step .seq-number {
  display: block;
  font-size: 32px;
  line-height: 1;
  margin-bottom: 12px;
}
.page-faq__step h3 {
  font-family: var(--font-head);
  font-size: 16px;
  color: var(--on-dark);
  margin: 0 0 8px;
}
.page-faq__step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-green);
}
.page-faq__step a {
  color: var(--status-yellow);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 版本对照与导出 */
.page-faq__compare-section {
  background: var(--bg-page);
  padding: 52px 0;
}
.page-faq__compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-width: 860px;
  margin: 0 auto 30px;
}
.page-faq__compare-card {
  padding: 24px 22px;
  position: relative;
}
.page-faq__compare-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 19px;
}
.page-faq__compare-card > p {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-sub);
}
.page-faq__compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.page-faq__compare-list li {
  padding-left: 16px;
  position: relative;
  font-size: 13.5px;
  color: var(--text-main);
  line-height: 1.5;
}
.page-faq__compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--accent-red);
}
.page-faq__export {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-dark-green);
  border-radius: 2px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 20px;
}
.page-faq__export-media img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 2px;
}
.page-faq__export-body h3 {
  font-family: var(--font-head);
  font-size: 18px;
  color: var(--on-dark);
  margin: 0 0 10px;
}
.page-faq__export-body p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--on-green);
}
.page-faq__export-note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--status-yellow);
  margin-bottom: 0;
}

/* 移动端与电脑端 */
.page-faq__devices-section {
  padding: 52px 0;
}
.page-faq__devices-section .section-kicker,
.page-faq__devices-section .section-title {
  color: var(--on-dark);
}
.page-faq__devices-section .section-kicker {
  color: var(--status-yellow);
}
.page-faq__devices-section .section-desc {
  color: rgba(245, 241, 232, 0.7);
}
.page-faq__device-table {
  max-width: 900px;
  margin: 0 auto 26px;
  overflow-x: auto;
  background: rgba(245, 241, 232, 0.05);
  border: 1px solid rgba(245, 241, 232, 0.12);
  border-radius: 2px;
}
.page-faq__device-table .data-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
  color: var(--on-dark);
}
.page-faq__device-table .data-table th,
.page-faq__device-table .data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(245, 241, 232, 0.1);
  text-align: left;
  vertical-align: top;
}
.page-faq__device-table .data-table th {
  font-family: var(--font-head);
  font-size: 15px;
  background: rgba(245, 241, 232, 0.08);
}
.page-faq__device-table .data-table tr:last-child td {
  border-bottom: none;
}
.page-faq__device-table .data-table tbody tr:hover td {
  background: rgba(241, 196, 15, 0.12);
}
.page-faq__device-img {
  text-align: center;
  margin-bottom: 24px;
}
.page-faq__device-img img {
  max-width: 100%;
  height: auto;
  border-radius: 2px;
}
.page-faq__device-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

@media (min-width: 768px) {
  .page-faq__head {
    padding-top: 40px;
  }
  .page-faq__quicknav-inner {
    gap: 10px 40px;
  }
  .page-faq__steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
  }
  .page-faq__steps::before {
    content: "";
    position: absolute;
    top: 24px;
    left: 6%;
    right: 6%;
    height: 1px;
    background: rgba(245, 241, 232, 0.22);
  }
  .page-faq__step {
    background: transparent;
    border: none;
    padding: 0 16px;
    text-align: left;
  }
  .page-faq__step .seq-number {
    font-size: 40px;
  }
  .page-faq__compare-grid {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
  .page-faq__export {
    grid-template-columns: 360px 1fr;
    gap: 28px;
    align-items: center;
    padding: 26px;
  }
}