.page-faq {
  --faq-surface: var(--panel);
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

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

.page-faq .faq-title {
  margin: 10px 0 0;
  max-width: 24ch;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(1.9rem, 6.4vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--bright);
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  color: var(--text);
  line-height: 1.8;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stats .stat {
  background: var(--faq-surface);
  padding: 14px 16px;
}

.page-faq .faq-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--lime);
}

.page-faq .faq-stats .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .quick-index {
  display: grid;
  gap: 1px;
  margin-top: 26px;
  background: var(--line-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .quick-index__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 14px;
  background: var(--bg);
  border-left: 2px solid transparent;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease), color 0.15s var(--ease);
}

.page-faq .quick-index__item:hover,
.page-faq .quick-index__item:focus-visible {
  background: var(--panel);
  border-left-color: var(--cyan);
  color: var(--bright);
}

.page-faq .quick-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .quick-index__text {
  font-size: 0.94rem;
  line-height: 1.55;
}

.page-faq .faq-sec {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-head__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-head__title {
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.8vw, 2rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--bright);
}

.page-faq .faq-head__meta {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
}

/* 分端切换 */
.page-faq .platform-switch {
  position: relative;
}

.page-faq .ps-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .platform-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .platform-tab {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--faq-surface);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}

.page-faq .platform-tab__code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.page-faq .platform-tab__label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  transition: color 0.15s var(--ease);
}

.page-faq #ps-android:checked ~ .platform-tabs .platform-tab--android {
  border-color: var(--cyan);
  background: rgba(47, 227, 224, 0.1);
  color: var(--cyan);
}

.page-faq #ps-android:checked ~ .platform-tabs .platform-tab--android .platform-tab__label {
  color: var(--cyan);
}

.page-faq #ps-ios:checked ~ .platform-tabs .platform-tab--ios {
  border-color: var(--lime);
  background: rgba(184, 255, 60, 0.1);
  color: var(--lime);
}

.page-faq #ps-ios:checked ~ .platform-tabs .platform-tab--ios .platform-tab__label {
  color: var(--lime);
}

.page-faq #ps-android:focus-visible ~ .platform-tabs .platform-tab--android,
.page-faq #ps-ios:focus-visible ~ .platform-tabs .platform-tab--ios {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .platform-panel {
  display: none;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--faq-surface);
}

.page-faq #ps-android:checked ~ .platform-panels .platform-panel--android {
  display: block;
}

.page-faq #ps-ios:checked ~ .platform-panels .platform-panel--ios {
  display: block;
}

.page-faq .panel-list {
  display: grid;
  margin-top: 14px;
}

.page-faq .panel-list__row {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .panel-list__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .platform-panel--ios .panel-list__key {
  color: var(--lime);
}

.page-faq .panel-list__val {
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--text);
}

/* 图片 */
.page-faq .faq-media {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  background: var(--faq-surface);
  overflow: hidden;
}

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

.page-faq .faq-media .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--muted);
}

/* 手风琴 */
.page-faq .faq-acc {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: var(--faq-surface);
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease);
}

.page-faq .faq-item[open] {
  border-left: 2px solid var(--cyan);
  background: var(--raised);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--bright);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
}

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

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

.page-faq .faq-item__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-faq .faq-item__q {
  min-width: 0;
}

.page-faq .faq-item__body {
  padding: 0 16px 16px 42px;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--text);
}

/* 步骤 */
.page-faq .steps {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--cyan);
}

.page-faq .steps--lime .step__num {
  color: var(--lime);
}

.page-faq .step__title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--bright);
}

.page-faq .step__text {
  margin: 4px 0 0;
  font-size: 0.92rem;
  line-height: 1.76;
  color: var(--text);
}

.page-faq .step__text .mono {
  color: var(--lime);
  overflow-wrap: anywhere;
}

.page-faq .faq-note {
  margin: 20px 0 0;
  padding: 13px 16px;
  border-left: 2px solid var(--magenta);
  background: var(--faq-surface);
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .faq-note .mono {
  color: var(--magenta);
  letter-spacing: 0.04em;
}

/* 两栏 */
.page-faq .faq-two {
  display: grid;
  gap: 28px;
}

.page-faq .faq-side {
  padding: 18px;
}

.page-faq .faq-side__label {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-side__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--text);
}

.page-faq .faq-side__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-side__list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-side__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--lime);
}

.page-faq .faq-side__list--num li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  padding-left: 0;
}

.page-faq .faq-side__list--num li::before {
  display: none;
}

.page-faq .faq-side__list--num .num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--lime);
  line-height: 1.9;
}

.page-faq .faq-side .btn {
  margin-top: 16px;
}

/* 对比 */
.page-faq .compare {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .compare__cell {
  padding: 18px;
  background: var(--faq-surface);
}

.page-faq .compare__title {
  margin: 0 0 10px;
  font-family: var(--font-cond);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
  color: var(--bright);
}

.page-faq .compare__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .compare__list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.92rem;
  line-height: 1.74;
  color: var(--text);
}

.page-faq .compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .compare__cell--b .compare__list li::before {
  background: var(--lime);
}

.page-faq .faq-tail {
  margin: 20px 0 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-tail--tight {
  margin-top: 14px;
}

.page-faq .faq-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 224, 0.4);
}

.page-faq .faq-tail a:hover,
.page-faq .faq-tail a:focus-visible {
  color: var(--bright);
  border-bottom-color: var(--bright);
}

/* 联系 */
.page-faq .contact-grid {
  display: grid;
  gap: 20px;
}

.page-faq .contact-grid .panel {
  padding: 18px;
}

.page-faq .contact-line {
  display: grid;
  gap: 3px;
  padding: 11px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .contact-line__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .contact-line__val {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--bright);
  overflow-wrap: anywhere;
}

.page-faq .contact-line__val.mono {
  color: var(--lime);
  font-weight: 600;
}

.page-faq .faq-cta {
  margin-top: 16px;
}

@media (min-width: 640px) {
  .page-faq .quick-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 40px;
  }

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

  .page-faq .faq-sec {
    padding: 60px 0;
  }

  .page-faq .platform-switch {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .platform-tabs {
    grid-template-columns: 1fr;
    position: sticky;
    top: 96px;
    margin-bottom: 0;
  }

  .page-faq .platform-tab {
    padding: 14px 18px;
  }

  .page-faq .platform-panel {
    padding: 22px;
  }

  .page-faq .faq-two {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-two .faq-media {
    margin-top: 0;
  }

  .page-faq .faq-item summary {
    padding: 16px 20px;
    font-size: 1.02rem;
  }

  .page-faq .faq-item__body {
    padding: 0 20px 18px 48px;
    font-size: 0.95rem;
  }
}
</