.page-faq {
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-ink-soft: #2A3646;
  padding-bottom: 8px;
}

.page-faq .breadcrumbs {
  padding: 18px 0 14px;
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  border-top: 1px solid var(--line-ink-strong);
  border-bottom: 1px solid var(--line-ink-strong);
}

.page-faq .faq-hero__intro {
  padding: 28px 0 32px;
}

.page-faq .faq-hero__intro h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 7vw, 60px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-search {
  margin-top: 26px;
  max-width: 560px;
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--graphite);
}

.page-faq .faq-search__field {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--line-ink-strong);
  background: #FBF8EF;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
}

.page-faq .faq-search__input::placeholder {
  color: #8A9099;
}

.page-faq .faq-search__input:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -2px;
}

.page-faq .faq-search__hint {
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-left: 1px solid var(--line-ink);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-faq .faq-search__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-search__tags a {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid var(--line-ink);
  font-size: 13px;
  color: var(--faq-ink-soft);
  text-decoration: none;
  transition: border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);
}

.page-faq .faq-search__tags a:hover,
.page-faq .faq-search__tags a:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.12);
  color: var(--ink);
}

.page-faq .faq-search__tags a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-hero__hot {
  background: var(--ink);
  color: var(--white);
  padding: 28px 22px 24px;
}

.page-faq .faq-hero__hot-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--gold-hi);
}

.page-faq .hotlist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .hotlist li + li {
  border-top: 1px solid var(--line-light);
}

.page-faq .hotlist a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  color: var(--white);
  font-size: 15px;
  line-height: 1.55;
  text-decoration: none;
  transition: color var(--t-fast), transform var(--t-fast);
}

.page-faq .hotlist__no {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-faq .hotlist a:hover,
.page-faq .hotlist a:focus-visible {
  color: var(--gold-hi);
  transform: translateX(2px);
}

.page-faq .hotlist a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

/* 双栏问答 */
.page-faq .faq-layout {
  display: grid;
  gap: 0;
  margin-top: 40px;
}

.page-faq .faq-index {
  border-bottom: 1px solid var(--line-ink);
  padding-bottom: 14px;
  margin-bottom: 28px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-faq .faq-index__title--sub {
  margin-top: 18px;
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 4px;
  font-size: 14px;
  color: var(--faq-ink-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), padding-left var(--t-fast);
}

.page-faq .faq-index__no {
  font-size: 11px;
  color: var(--graphite);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--gold);
  padding-left: 10px;
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-group {
  margin-bottom: 44px;
  scroll-margin-top: calc(var(--topbar-h) + 18px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: start;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

.page-faq .faq-item__no {
  font-size: 11px;
  line-height: 2.1;
  color: var(--graphite);
  letter-spacing: 0.06em;
}

.page-faq .faq-item__q {
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--t-fast);
}

.page-faq .faq-item summary:hover .faq-item__q {
  color: var(--gold-deep);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--line-ink-strong);
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--gold-deep);
  transition: opacity var(--t-fast), transform var(--t-fast);
}

.page-faq .faq-item__sign::before {
  top: 8px;
  left: 4px;
  width: 8px;
  height: 1px;
}

.page-faq .faq-item__sign::after {
  top: 4px;
  left: 8px;
  width: 1px;
  height: 8px;
}

.page-faq .faq-item[open] .faq-item__sign {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.14);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  opacity: 0;
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 0 18px 36px;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.8;
  max-width: 68ch;
}

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

.page-faq .faq-item__a a {
  color: var(--gold-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--ink);
}

.page-faq .faq-item__a a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

/* 坐标确认四步 */
.page-faq .faq-coord {
  display: grid;
  gap: var(--faq-gap);
  padding: 30px 20px;
  background: var(--paper-2);
  border-top: 1px solid var(--line-ink-strong);
  scroll-margin-top: calc(var(--topbar-h) + 18px);
}

.page-faq .faq-coord__body h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
}

.page-faq .faq-coord__lead {
  margin: 0 0 18px;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

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

.page-faq .step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line-ink-strong);
}

.page-faq .step__no {
  font-size: 22px;
  line-height: 1.2;
  color: var(--gold-deep);
}

.page-faq .step h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-coord__figure {
  align-self: start;
  margin: 0;
  background: #FBF8EF;
  border: 1px solid var(--line-ink);
}

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

.page-faq .media__caption {
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--graphite);
  border-top: 1px solid var(--line-ink);
}

/* 端侧差异 */
.page-faq .faq-devices {
  margin-top: 52px;
  scroll-margin-top: calc(var(--topbar-h) + 18px);
}

.page-faq .faq-devices__head h2 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink);
}

.page-faq .faq-devices__head p:last-child {
  margin: 0 0 22px;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .device-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-ink-strong);
}

.page-faq .device-col {
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--line-ink);
}

.page-faq .device-col h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .device-col--ios h3 {
  color: var(--gold-deep);
}

.page-faq .device-col--big h3 {
  color: var(--ink-2);
}

.page-faq .device-col__tagline {
  margin: 0 0 14px;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--graphite);
}

.page-faq .device-col dl {
  margin: 0;
}

.page-faq .device-col dt {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-faq .device-col dd {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-devices__figure {
  margin: 26px 0 0;
  border: 1px solid var(--line-ink);
  background: var(--ink);
}

.page-faq .faq-devices__figure .media__caption {
  border-top-color: var(--line-light);
  color: var(--white);
  opacity: 0.82;
}

/* 频道 */
.page-faq .faq-channels {
  margin-top: 52px;
  padding: 28px 20px 24px;
  background: var(--paper-2);
  border-top: 1px solid var(--line-ink-strong);
  scroll-margin-top: calc(var(--topbar-h) + 18px);
}

.page-faq .faq-channels__head h2 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink);
}

.page-faq .faq-channels__head p:last-child {
  margin: 0 0 20px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .channel-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-ink);
  border: 1px solid var(--line-ink);
}

.page-faq .channel {
  padding: 16px 14px 18px;
  background: #FBF8EF;
  transition: background-color var(--t-fast);
}

.page-faq .channel:hover {
  background: #FFFBF0;
}

.page-faq .channel__no {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-faq .channel h3 {
  margin: 6px 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .channel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--faq-ink-soft);
}

/* 联系前准备 */
.page-faq .faq-prepare {
  margin-top: 52px;
  padding: 30px 22px 26px;
  background: var(--ink);
  color: var(--white);
}

.page-faq .faq-prepare__body h2 {
  margin: 8px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--white);
}

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

.page-faq .checklist li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line-light);
}

.page-faq .checklist__mark {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  background: var(--gold);
}

.page-faq .checklist h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--white);
}

.page-faq .checklist p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(247, 250, 252, 0.78);
}

.page-faq .faq-prepare__contact p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.86);
  max-width: 60ch;
}

.page-faq .faq-prepare__contact a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-prepare__contact a:hover,
.page-faq .faq-prepare__contact a:focus-visible {
  color: var(--white);
}

.page-faq .faq-prepare__contact a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-prepare__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 16px;
}

.page-faq .faq-prepare__legal {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 250, 252, 0.62);
}

.page-faq .faq-prepare__legal a {
  color: rgba(247, 250, 252, 0.82);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-prepare__legal a:hover,
.page-faq .faq-prepare__legal a:focus-visible {
  color: var(--gold-hi);
}

/* 中等宽度 */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

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

  .page-faq .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-faq .checklist li:nth-child(2) {
    border-top: 1px solid var(--line-light);
  }
}

/* 桌面端分屏 */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-hero__intro {
    padding: 40px 40px 40px 0;
  }

  .page-faq .faq-hero__hot {
    padding: 34px 28px 28px;
  }

  .page-faq .device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 40px;
  }

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

  .page-faq .faq-coord {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
    padding: 38px 30px;
    gap: 40px;
  }

  .page-faq .faq-channels,
  .page-faq .faq-prepare {
    padding: 38px 30px 34px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 196px minmax(0, 1fr);
    column-gap: 48px;
    margin-top: 52px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 26px);
    align-self: start;
    border-bottom: 0;
    border-left: 1px solid var(--line-ink);
    padding: 2px 0 0 0;
    margin-bottom: 0;
  }

  .page-faq .faq-index__title {
    padding-left: 12px;
  }

  .page-faq .faq-index__list {
    display: block;
  }

  .page-faq .faq-index__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__list a {
    display: flex;
    width: 100%;
    padding: 7px 10px;
  }

  .page-faq .faq-coord {
    grid-template-columns: minmax(0, 1fr) 400px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .hotlist a,
  .page-faq .faq-index__list a,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .channel {
    transition: none;
  }

  .page-faq .hotlist a:hover,
  .page-faq .hotlist a:focus-visible {
    transform: none;
  }
}