.page-faq {
  --faq-line: rgba(19, 59, 71, 0.16);
  --faq-line-soft: rgba(19, 59, 71, 0.09);
  --faq-body: #4A4A45;
  background: var(--mi-bai);
  color: var(--yan-hui);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq .section {
  padding: 52px 0;
}

.page-faq .section--tint {
  background: var(--sha-yan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 52px;
  color: var(--mi-bai);
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(61, 126, 140, 0.55), transparent 62%),
    linear-gradient(162deg, #0E2E38 0%, var(--ink-deep) 54%, #17434F 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(105deg, rgba(201, 162, 39, 0.10) 0 1px, transparent 1px 46px);
  opacity: 0.6;
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  font-size: 13px;
  color: rgba(244, 239, 228, 0.66);
}

.page-faq .faq-hero .crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(201, 162, 39, 0.7);
}

.page-faq .faq-hero .crumbs__list a {
  color: rgba(244, 239, 228, 0.86);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-hero .crumbs__list a:hover,
.page-faq .faq-hero .crumbs__list a:focus-visible {
  border-bottom-color: var(--sha-jin);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--sha-jin);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 50px);
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: #fff;
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  color: rgba(244, 239, 228, 0.86);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  border-top: 1px solid rgba(201, 162, 39, 0.35);
}

.page-faq .faq-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(244, 239, 228, 0.7);
}

.page-faq .faq-hero__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.1;
  color: var(--sha-jin);
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  background: var(--mi-bai);
  color: var(--yan-hui);
  border-top: 3px solid var(--sha-jin);
  border-radius: var(--radius-card);
  padding: 16px 12px 10px;
  box-shadow: 0 20px 44px rgba(6, 26, 33, 0.32);
}

.page-faq .faq-toc__title {
  margin: 0 0 8px;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray-500);
}

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

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

.page-faq .faq-toc__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 8px;
  list-style: none;
  cursor: pointer;
  border-radius: 12px;
  transition: background-color 200ms var(--ease);
}

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

.page-faq .faq-toc__summary::marker {
  content: "";
}

.page-faq .faq-toc__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gray-500);
}

.page-faq .faq-toc__item[open] > .faq-toc__summary::after {
  content: "−";
  color: var(--zhe-shi);
}

.page-faq .faq-toc__summary:hover,
.page-faq .faq-toc__summary:focus-visible {
  background: var(--sha-yan);
  outline: none;
}

.page-faq .faq-toc__item[open] > .faq-toc__summary {
  background: var(--sha-yan);
}

.page-faq .faq-toc__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--zhe-shi);
}

.page-faq .faq-toc__label {
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--ink-deep);
}

.page-faq .faq-toc__flag {
  flex: 0 0 auto;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--zhe-shi);
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
}

.page-faq .faq-toc__body {
  padding: 0 10px 14px 30px;
  font-size: 13.5px;
  color: var(--gray-500);
}

.page-faq .faq-toc__body p {
  margin: 0 0 6px;
}

.page-faq .faq-toc__go {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--shi-qing);
  text-decoration: none;
  border-bottom: 1px solid var(--sha-jin);
  transition: color 200ms var(--ease);
}

.page-faq .faq-toc__go:hover,
.page-faq .faq-toc__go:focus-visible {
  color: var(--zhe-shi);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec__head {
  max-width: 720px;
  margin-bottom: 28px;
}

.page-faq .faq-sec__no {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--zhe-shi);
}

.page-faq .faq-sec__no::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--sha-jin);
}

.page-faq .faq-h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.6vw, 32px);
  line-height: 1.36;
  letter-spacing: 0.01em;
  color: var(--ink-deep);
}

.page-faq .faq-sec__intro {
  margin: 0;
  font-size: 15.5px;
  color: var(--faq-body);
}

.page-faq .faq-figure {
  margin: 0 0 36px;
}

.page-faq .faq-figure img,
.page-faq .faq-device__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  background: var(--sha-yan);
  object-fit: cover;
}

.page-faq .figure__cap {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--gray-500);
}

/* ---------- 六步 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 40px 60px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 52px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(180, 101, 42, 0.45), rgba(180, 101, 42, 0.06));
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--zhe-shi);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  box-shadow: 0 0 0 6px rgba(180, 101, 42, 0.10);
  transition: background-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-faq .faq-step__title {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--shi-qing);
  transition: color 240ms var(--ease);
}

.page-faq .faq-step__act {
  margin: 0 0 10px;
  font-size: 15.5px;
  color: var(--yan-hui);
}

.page-faq .faq-step__warn {
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 2px solid rgba(140, 59, 46, 0.35);
  font-size: 14px;
  color: var(--tu-hong);
}

.page-faq .faq-step__done {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px 5px 10px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  cursor: pointer;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-faq .faq-step__done:hover {
  border-color: var(--shi-qing-light);
  color: var(--shi-qing);
}

.page-faq .faq-step__done input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--tai-lv);
}

.page-faq .faq-step:has(.faq-step__done input:checked) .faq-step__title {
  color: var(--tai-lv);
}

.page-faq .faq-step:has(.faq-step__done input:checked) .faq-step__no {
  background: var(--tai-lv);
  box-shadow: 0 0 0 6px rgba(92, 107, 84, 0.14);
}

.page-faq .faq-sec__tail {
  margin: 40px 0 0;
  padding: 20px 20px;
  border-left: 4px solid var(--zhe-shi);
  border-radius: var(--radius-card);
  background: var(--sha-yan);
  font-size: 14.5px;
  color: var(--yan-hui);
}

/* ---------- 两张排查清单 ---------- */
.page-faq .faq-check {
  display: grid;
  gap: 20px;
}

.page-faq .faq-check__card {
  padding: 24px 20px;
  border-top: 3px solid var(--sha-jin);
  border-radius: var(--radius-card);
  background: var(--mi-bai);
  box-shadow: 0 12px 28px rgba(19, 59, 71, 0.08);
}

.page-faq .faq-check__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink-deep);
}

.page-faq .faq-check__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-check__list li {
  position: relative;
  padding-left: 26px;
}

.page-faq .faq-check__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--shi-qing-light);
  border-radius: 50%;
}

.page-faq .faq-check__list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--ink-deep);
}

.page-faq .faq-check__list span {
  display: block;
  font-size: 14px;
  color: var(--faq-body);
}

.page-faq .faq-swap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-swap__pair {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--sha-yan);
  font-size: 12.5px;
  color: var(--gray-500);
}

.page-faq .faq-swap__pair b {
  font-weight: 600;
  color: var(--zhe-shi);
}

.page-faq .faq-check__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  color: var(--gray-500);
}

.page-faq .faq-check__note a {
  color: var(--shi-qing);
  text-decoration: none;
  border-bottom: 1px solid var(--sha-jin);
}

.page-faq .faq-check__note a:hover,
.page-faq .faq-check__note a:focus-visible {
  color: var(--zhe-shi);
}

/* ---------- 机型对照 ---------- */
.page-faq .faq-device {
  display: grid;
  gap: 28px;
}

.page-faq .faq-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-device__chips {
  display: flex;
  gap: 8px;
  margin: 0 0 16px;
  padding-bottom: 4px;
  overflow-x: auto;
}

.page-faq .faq-device__chips .chip {
  flex: 0 0 auto;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid var(--faq-line);
  background: var(--mi-bai);
  color: var(--gray-500);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 7px 16px;
  border-radius: 999px;
  transition: background-color 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-device__chips .chip:hover {
  border-color: var(--shi-qing-light);
  color: var(--shi-qing);
}

.page-faq #dv-all:checked ~ .faq-device__chips label[for="dv-all"],
.page-faq #dv-android:checked ~ .faq-device__chips label[for="dv-android"],
.page-faq #dv-ios:checked ~ .faq-device__chips label[for="dv-ios"],
.page-faq #dv-cross:checked ~ .faq-device__chips label[for="dv-cross"] {
  background: var(--shi-qing);
  border-color: var(--shi-qing);
  color: #fff;
}

.page-faq .faq-device__tablewrap {
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-card);
  background: #fff;
}

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

.page-faq .faq-table__cap {
  caption-side: bottom;
  padding: 10px 14px 14px;
  font-size: 12.5px;
  color: var(--gray-500);
  text-align: left;
}

.page-faq .faq-table thead th {
  padding: 12px 14px;
  background: var(--ink-deep);
  color: #fff;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: left;
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  padding: 13px 14px;
  border-top: 1px solid var(--faq-line-soft);
  vertical-align: top;
  color: var(--faq-body);
}

.page-faq .faq-table tbody td:first-child {
  color: var(--yan-hui);
  font-weight: 500;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: var(--sha-yan);
}

.page-faq .faq-table__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--zhe-shi) !important;
  white-space: nowrap;
}

.page-faq .faq-table tbody tr {
  display: none;
}

.page-faq #dv-all:checked ~ .faq-device__tablewrap .faq-table tbody tr {
  display: table-row;
}

.page-faq #dv-android:checked ~ .faq-device__tablewrap .faq-table tbody tr.row-android,
.page-faq #dv-ios:checked ~ .faq-device__tablewrap .faq-table tbody tr.row-ios,
.page-faq #dv-cross:checked ~ .faq-device__tablewrap .faq-table tbody tr.row-cross {
  display: table-row;
}

.page-faq .faq-device__figure {
  margin: 0;
}

/* ---------- 联系收束 ---------- */
.page-faq .faq-contact {
  background: linear-gradient(158deg, #123946 0%, var(--ink-deep) 62%, #17434F 100%);
  color: var(--mi-bai);
}

.page-faq .faq-contact__panel {
  display: grid;
  gap: 28px;
}

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

.page-faq .faq-contact .faq-h2 {
  color: #fff;
}

.page-faq .faq-contact__lead {
  margin: 0;
  font-size: 15.5px;
  color: rgba(244, 239, 228, 0.86);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: rgba(244, 239, 228, 0.86);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--sha-jin);
  transform: rotate(45deg);
}

.page-faq .faq-contact__note {
  margin: 20px 0 0;
  font-size: 13.5px;
  color: rgba(244, 239, 228, 0.62);
}

.page-faq .faq-contact__box {
  padding: 24px 20px;
  border: 1px solid rgba(201, 162, 39, 0.4);
  border-radius: var(--radius-card);
  background: rgba(244, 239, 228, 0.07);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--sha-jin);
}

.page-faq .faq-contact__mail {
  margin: 6px 0 16px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  color: #fff;
  word-break: break-all;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .faq-contact__tel {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: #fff;
}

.page-faq .faq-contact__hint {
  margin: 0 0 8px;
  font-size: 13px;
  color: rgba(244, 239, 228, 0.66);
}

.page-faq .faq-contact__hint a {
  color: var(--mi-bai);
  text-decoration: none;
  border-bottom: 1px solid var(--sha-jin);
}

.page-faq .faq-contact__hint a:hover,
.page-faq .faq-contact__hint a:focus-visible {
  color: var(--sha-jin);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .section {
    padding: 80px 0;
  }

  .page-faq .faq-hero {
    padding: 34px 0 76px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-hero__text {
    font-size: 17px;
  }

  .page-faq .faq-toc {
    padding: 20px 16px 12px;
  }

  .page-faq .faq-sec__head {
    margin-bottom: 36px;
  }

  .page-faq .faq-step {
    padding: 0 0 64px 92px;
  }

  .page-faq .faq-step::before {
    left: 27px;
    top: 64px;
  }

  .page-faq .faq-step__no {
    width: 56px;
    height: 56px;
    font-size: 26px;
  }

  .page-faq .faq-step__title {
    font-size: 20px;
  }

  .page-faq .faq-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-check__card {
    padding: 28px 26px;
  }

  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-device {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.58fr);
    gap: 40px;
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__summary,
  .page-faq .faq-step__no,
  .page-faq .faq-step__title,
  .page-faq .faq-step__done,
  .page-faq .faq-device__chips .chip {
    transition: none;
  }
}