.page-faq {
  background:
    radial-gradient(120% 80% at 88% -6%, rgba(53, 224, 208, .12), transparent 60%),
    radial-gradient(90% 70% at 4% 24%, rgba(255, 122, 61, .07), transparent 58%);
  padding-bottom: 64px;
  overflow-wrap: break-word;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-crumb .spk-breadcrumb__link {
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-crumb .spk-breadcrumb__link:hover {
  border-bottom-color: var(--cyan-500);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 26px 0 14px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -90px;
  right: -120px;
  width: min(520px, 88vw);
  aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(53, 224, 208, .22), transparent 64%);
  filter: blur(8px);
  pointer-events: none;
}

.page-faq .faq-hero .spk-h1 {
  max-width: 16em;
  text-wrap: balance;
}

.page-faq .faq-hero .spk-lede {
  max-width: 58ch;
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-hero__jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: rgba(53, 224, 208, .07);
  color: var(--cyan-300);
  font-size: 13.5px;
  text-decoration: none;
  transition: background .22s ease, border-color .22s ease;
}

.page-faq .faq-hero__jump:hover {
  background: rgba(53, 224, 208, .16);
  border-color: var(--cyan-500);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, rgba(16, 44, 70, .78), rgba(11, 34, 57, .52));
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  letter-spacing: -.02em;
  color: var(--cyan-300);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--mist);
}

/* ---------- 区块标题 ---------- */

.page-faq .faq-head {
  margin-bottom: 22px;
}

.page-faq .faq-head .spk-h2 {
  margin-top: 8px;
}

.page-faq .faq-head p {
  margin-top: 10px;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 主题簇 ---------- */

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

.page-faq .faq-topic {
  position: relative;
  padding: 20px 20px 20px 66px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background: var(--surface-2);
  box-shadow: var(--shadow-soft);
  transition: border-color .22s ease, transform .22s ease;
}

.page-faq .faq-topic:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-faq .faq-topic__key {
  position: absolute;
  left: 18px;
  top: 20px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: rgba(53, 224, 208, .13);
  color: var(--cyan-300);
  font-size: 14px;
}

.page-faq .faq-topic .spk-h3 {
  margin: 0;
  font-size: 15.5px;
}

.page-faq .faq-topic p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-topic__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-topic__link:hover {
  border-bottom-color: var(--cyan-500);
}

/* ---------- 图片卡 ---------- */

.page-faq .faq-figure {
  margin: 0 0 22px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--surface-2);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 11px 16px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 筛选 ---------- */

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 18px;
}

.page-faq .faq-filter__opt {
  position: relative;
  display: inline-flex;
}

.page-faq .faq-filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  clip-path: inset(50%);
  pointer-events: none;
}

.page-faq .faq-filter label {
  cursor: pointer;
  user-select: none;
}

.page-faq .faq-filter__radio:checked + label {
  border-color: var(--cyan-500);
  color: var(--cyan-300);
  background: rgba(53, 224, 208, .13);
  box-shadow: inset 0 0 0 1px rgba(53, 224, 208, .4);
}

.page-faq .faq-filter__radio:focus-visible + label {
  outline: 2px solid var(--orange-500);
  outline-offset: 3px;
}

.page-faq:has(#faq-ft-nav:checked) .faq-card:not([data-topic~="nav"]),
.page-faq:has(#faq-ft-login:checked) .faq-card:not([data-topic~="login"]),
.page-faq:has(#faq-ft-device:checked) .faq-card:not([data-topic~="device"]),
.page-faq:has(#faq-ft-feedback:checked) .faq-card:not([data-topic~="feedback"]),
.page-faq:has(#faq-ft-display:checked) .faq-card:not([data-topic~="display"]) {
  display: none;
}

/* ---------- 折叠卡 ---------- */

.page-faq .faq-cards {
  display: grid;
  gap: 10px;
}

.page-faq .faq-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--surface-1);
  overflow: hidden;
  transition: border-color .22s ease, background .22s ease;
}

.page-faq .faq-card:hover {
  border-color: var(--line-strong);
}

.page-faq .faq-card[open] {
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(16, 44, 70, .94), rgba(11, 34, 57, .96));
}

.page-faq .faq-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-card__head:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: -3px;
}

.page-faq .faq-card__no {
  flex: 0 0 auto;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: rgba(53, 224, 208, .09);
  color: var(--cyan-300);
  font-size: 11.5px;
  letter-spacing: .08em;
}

.page-faq .faq-card__q {
  flex: 1 1 auto;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--fog);
}

.page-faq .faq-card__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
}

.page-faq .faq-card__icon::before,
.page-faq .faq-card__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--orange-500);
  border-radius: 2px;
}

.page-faq .faq-card__icon::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-card__icon::after {
  width: 2px;
  height: 10px;
  transition: opacity .2s ease, transform .2s ease;
}

.page-faq .faq-card[open] .faq-card__icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(.2);
}

.page-faq .faq-card__body {
  padding: 2px 16px 18px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-tag {
  display: inline-block;
  margin: 14px 0 0;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  counter-reset: faqstep;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fog);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 2px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  background: rgba(53, 224, 208, .14);
  color: var(--cyan-300);
  font-family: var(--font-mono);
  font-size: 11px;
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 9.5px;
  top: 25px;
  bottom: -10px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), transparent);
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

.page-faq .faq-result {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 14px 0 0;
  padding: 11px 13px;
  border-radius: var(--r-md);
  background: var(--paper);
  color: #0B2239;
  font-size: 13.5px;
  line-height: 1.65;
}

.page-faq .faq-result__tag {
  flex: 0 0 auto;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  background: rgba(6, 24, 38, .12);
  color: var(--ink-black);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
}

/* ---------- 换设备 ---------- */

.page-faq .faq-device__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-device__lede {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-device__steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-device__step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(11, 34, 57, .62);
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-device__step > span:first-child {
  flex: 0 0 auto;
  padding-top: 2px;
  color: var(--cyan-300);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .faq-device__step a {
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-500);
}

.page-faq .faq-device .faq-figure {
  margin: 0;
}

/* ---------- 提交准备 ---------- */

.page-faq .faq-prep {
  padding: 26px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background:
    linear-gradient(158deg, rgba(255, 122, 61, .13), rgba(11, 34, 57, .88) 46%),
    var(--ink-800);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-prep__item {
  padding: 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(6, 24, 38, .52);
}

.page-faq .faq-prep__item b {
  display: block;
  font-size: 14px;
  color: var(--fog);
}

.page-faq .faq-prep__item p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-prep__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-prep__mail {
  font-size: 13px;
  color: var(--cyan-300);
  word-break: break-all;
}

.page-faq .faq-prep__note {
  font-size: 12.5px;
  color: var(--mist);
}

/* ---------- 编号 ---------- */

.page-faq .faq-code__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-code__text p {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-code__more {
  display: inline-block;
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-code__more:hover {
  border-bottom-color: var(--cyan-500);
}

.page-faq .faq-code__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-code__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: rgba(6, 24, 38, .48);
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-code__list b {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan-300);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-more__box {
  padding: 28px 22px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(53, 224, 208, .16), transparent 62%),
    var(--ink-800);
  text-align: left;
}

.page-faq .faq-more__box p {
  margin: 12px 0 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-card__head {
    padding: 17px 22px;
  }

  .page-faq .faq-card__q {
    font-size: 15.5px;
  }

  .page-faq .faq-card__body {
    padding: 4px 22px 20px;
  }

  .page-faq .faq-prep {
    padding: 32px 30px;
  }

  .page-faq .faq-prep__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-more__box {
    padding: 34px 36px;
  }
}

@media (min-width: 860px) {
  .page-faq {
    padding-bottom: 88px;
  }

  .page-faq .faq-topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-list-sec .faq-head p {
    font-size: 15px;
  }

  .page-faq .faq-device__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 44px;
    align-items: center;
  }

  .page-faq .faq-code__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-code__text {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-more__box {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px 32px;
  }

  .page-faq .faq-more__box h2 {
    grid-column: 1;
  }

  .page-faq .faq-more__box p {
    grid-column: 1;
  }

  .page-faq .faq-more__actions {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin-top: 0;
  }
}
<<<END>>>