.page-faq {
  --fq-stepnum: clamp(54px, 11vw, 96px);
  --fq-rule: 1px solid var(--c-line);
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
}

.page-faq a {
  color: inherit;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-mute);
}

.page-faq .breadcrumb a {
  color: var(--c-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur);
}

.page-faq .breadcrumb a:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-faq .breadcrumb__sep {
  color: var(--c-line);
}

/* 首屏 */
.page-faq .fq-hero {
  padding: 34px 0 42px;
  border-bottom: var(--fq-rule);
}

.page-faq .fq-hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(31px, 7vw, 64px);
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 22ch;
}

.page-faq .fq-hero__lead {
  margin: 0;
  max-width: 40em;
  color: var(--c-dim);
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.75;
}

.page-faq .fq-hero__lead strong {
  color: var(--c-cyan);
  font-weight: 700;
}

.page-faq .fq-jump {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 34px;
  background: var(--c-line);
  border: var(--fq-rule);
}

.page-faq .fq-jump__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  background: var(--c-panel);
  text-decoration: none;
  color: var(--c-text);
  transition: background var(--dur), box-shadow var(--dur);
}

.page-faq .fq-jump__item:hover,
.page-faq .fq-jump__item:focus-visible {
  background: #101C2C;
  box-shadow: inset 3px 0 0 var(--c-orange);
}

.page-faq .fq-jump__idx {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-orange);
}

.page-faq .fq-jump__label {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.01em;
}

/* 左栏目录 */
.page-faq .fq-layout {
  display: grid;
  grid-template-columns: 1fr;
}

.page-faq .fq-rail {
  padding: 28px 0 6px;
  border-bottom: var(--fq-rule);
}

.page-faq .fq-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-mute);
}

.page-faq .fq-rail__list {
  display: flex;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .fq-rail__link {
  display: block;
  white-space: nowrap;
  padding: 9px 13px;
  border: var(--fq-rule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-dim);
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.page-faq .fq-rail__link:hover,
.page-faq .fq-rail__link:focus-visible {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-faq .fq-rail__link.is-current {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
  background: rgba(41, 231, 220, .07);
}

.page-faq .fq-rail__note {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-mute);
}

.page-faq .fq-rail__note a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 140, 58, .45);
}

.page-faq .fq-rail__note a:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

/* 主区 */
.page-faq .fq-main {
  padding-bottom: 64px;
}

.page-faq .fq-section {
  padding: 42px 0 6px;
  scroll-margin-top: 24px;
}

.page-faq .fq-section + .fq-section {
  border-top: var(--fq-rule);
  margin-top: 40px;
}

.page-faq .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 24px;
  padding-bottom: 14px;
  border-bottom: var(--fq-rule);
}

.page-faq .section-head__title {
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(22px, 3.6vw, 30px);
  letter-spacing: -.01em;
}

.page-faq .section-head__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-mute);
}

.page-faq .fq-lead {
  margin: 0 0 26px;
  max-width: 40em;
  color: var(--c-dim);
}

.page-faq .fq-lead a,
.page-faq .fq-step__text a,
.page-faq .fq-qa__a a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 231, 220, .4);
  transition: border-color var(--dur), color var(--dur);
}

.page-faq .fq-lead a:hover,
.page-faq .fq-step__text a:hover,
.page-faq .fq-qa__a a:hover {
  border-bottom-color: var(--c-cyan);
}

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

.page-faq .fq-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 24px 0;
  border-top: var(--fq-rule);
}

.page-faq .fq-step:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .fq-step__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fq-stepnum);
  line-height: .82;
  letter-spacing: -.04em;
  color: rgba(41, 231, 220, .16);
  transition: color var(--dur);
}

.page-faq .fq-step:hover .fq-step__num {
  color: rgba(41, 231, 220, .42);
}

.page-faq .fq-step__title {
  margin: 0 0 8px;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.01em;
}

.page-faq .fq-step__text {
  margin: 0;
  max-width: 40em;
  color: var(--c-dim);
}

.page-faq .fq-hint {
  margin: 26px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--c-orange);
  background: var(--c-panel);
  color: var(--c-dim);
  font-size: 14px;
  line-height: 1.7;
}

/* 图片容器 */
.page-faq .fq-figure {
  margin: 30px 0 0;
}

.page-faq .fq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--fq-rule);
  background: var(--c-panel);
  object-fit: cover;
}

.page-faq .fq-figure .media-frame__tag {
  display: block;
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mute);
}

/* 筛选演示 */
.page-faq .fq-filters {
  margin: 0 0 28px;
  padding: 18px;
  border: var(--fq-rule);
  background: var(--c-panel);
}

.page-faq .fq-filters__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .fq-filters__tab {
  cursor: pointer;
  padding: 8px 13px;
  border: var(--fq-rule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-dim);
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.page-faq .fq-filters__tab:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-faq .fq-filters:has(#fq-scope-round:checked) label[for="fq-scope-round"],
.page-faq .fq-filters:has(#fq-scope-version:checked) label[for="fq-scope-version"],
.page-faq .fq-filters:has(#fq-scope-keyword:checked) label[for="fq-scope-keyword"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: #04191C;
}

.page-faq .fq-panel {
  padding-left: 16px;
  border-left: 2px solid var(--c-cyan);
}

.page-faq .fq-panel p {
  margin: 0 0 10px;
  max-width: 40em;
  color: var(--c-dim);
  font-size: 15px;
}

.page-faq .fq-panel p:last-child {
  margin-bottom: 0;
}

.page-faq .fq-panel__demo {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-cyan) !important;
}

.page-faq .fq-filters:has(input:checked) .fq-panel {
  display: none;
}

.page-faq .fq-filters:has(#fq-scope-round:checked) .fq-panel--round,
.page-faq .fq-filters:has(#fq-scope-version:checked) .fq-panel--version,
.page-faq .fq-filters:has(#fq-scope-keyword:checked) .fq-panel--keyword {
  display: block;
}

/* 常见疑问 */
.page-faq .fq-qa {
  border-top: var(--fq-rule);
}

.page-faq .fq-qa__item {
  display: grid;
  grid-template-columns: 1fr;
  border-bottom: var(--fq-rule);
}

.page-faq .fq-qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--c-text);
  transition: color var(--dur);
}

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

.page-faq .fq-qa__q::before {
  content: "＋";
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--c-cyan);
}

.page-faq .fq-qa__item[open] .fq-qa__q::before {
  content: "－";
}

.page-faq .fq-qa__q:hover {
  color: var(--c-cyan);
}

.page-faq .fq-qa__a {
  padding: 0 0 20px 26px;
  color: var(--c-dim);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .fq-qa__a p {
  margin: 0 0 10px;
  max-width: 44em;
}

.page-faq .fq-qa__a p:last-child {
  margin-bottom: 0;
}

/* 使用场景 */
.page-faq .fq-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: var(--fq-rule);
}

.page-faq .fq-scene {
  padding: 24px 20px 26px;
  background: var(--c-panel);
  border-top: 2px solid var(--c-orange);
}

.page-faq .fq-scene:nth-child(2) {
  border-top-color: var(--c-magenta);
}

.page-faq .fq-scene:nth-child(3) {
  border-top-color: var(--c-green);
}

.page-faq .fq-scene__k {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-orange);
}

.page-faq .fq-scene:nth-child(2) .fq-scene__k {
  color: var(--c-magenta);
}

.page-faq .fq-scene:nth-child(3) .fq-scene__k {
  color: var(--c-green);
}

.page-faq .fq-scene h3 {
  margin: 0 0 10px;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.01em;
}

.page-faq .fq-scene p {
  margin: 0;
  color: var(--c-dim);
  font-size: 15px;
  line-height: 1.72;
}

/* 求助区 */
.page-faq .fq-help {
  display: grid;
  gap: 20px;
  padding: 24px 20px;
  border: var(--fq-rule);
  border-left: 3px solid var(--c-orange);
  background: var(--c-panel);
}

.page-faq .fq-help p {
  margin: 0;
  max-width: 44em;
  color: var(--c-dim);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .fq-help .btn {
  justify-self: start;
  text-decoration: none;
}

/* 页尾留白 */
.page-faq .fq-outro {
  margin-top: 56px;
  padding: 80px 0;
  border-top: var(--fq-rule);
  background-color: var(--c-bg);
  background-image:
    linear-gradient(to right, rgba(28, 42, 61, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 42, 61, .55) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-faq .fq-outro__line {
  margin: 0 0 22px;
  max-width: 22ch;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(22px, 4.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -.01em;
}

.page-faq .fq-outro .btn {
  text-decoration: none;
}

/* 平板 */
@media (min-width: 768px) {
  .page-faq .fq-jump {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .fq-scenes {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .fq-scene {
    padding: 26px 22px 30px;
  }
}

/* 桌面 */
@media (min-width: 1024px) {
  .page-faq .fq-layout {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .fq-rail {
    position: sticky;
    top: 24px;
    padding: 52px 0 0;
    border-bottom: none;
  }

  .page-faq .fq-rail__list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .fq-rail__link {
    white-space: normal;
  }

  .page-faq .fq-main {
    padding-top: 52px;
    padding-bottom: 80px;
  }

  .page-faq .fq-section {
    padding: 52px 0 8px;
  }

  .page-faq .fq-step {
    grid-template-columns: 134px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    padding: 32px 0;
  }

  .page-faq .fq-step:first-child {
    padding-top: 0;
  }

  .page-faq .fq-qa__item {
    grid-template-columns: minmax(200px, 1fr) minmax(0, 1.7fr);
    column-gap: 36px;
  }

  .page-faq .fq-qa__q {
    grid-column: 1;
    padding: 22px 0;
  }

  .page-faq .fq-qa__a {
    grid-column: 2;
    padding: 4px 0 24px;
  }

  .page-faq .fq-help {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 30px 32px;
  }

  .page-faq .fq-help .btn {
    justify-self: end;
  }

  .page-faq .fq-outro {
    margin-top: 72px;
    padding: 104px 0;
  }
}