.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 28px);
  --faq-radius: 22px;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(90% 72% at 6% 0%, rgba(31, 240, 206, 0.13), rgba(31, 240, 206, 0) 62%),
    linear-gradient(180deg, var(--void) 0%, var(--deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 100%;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 42%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 42%, transparent 100%);
}

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

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__copy h1 {
  margin: 16px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 52px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__copy .lede {
  margin: 20px 0 0;
  max-width: 36em;
  color: var(--silver);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-faq .faq-hero__meta-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(31, 240, 206, 0.16) 0%, rgba(31, 240, 206, 0) 46%);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  }
}

/* ============ 分类切换 ============ */
.page-faq .faq-board {
  padding-top: clamp(48px, 7vw, 92px);
}

.page-faq .faq-cats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(24px, 3.4vw, 40px) 0 clamp(28px, 4vw, 46px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  width: 100%;
  min-width: 0;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  color: var(--silver);
  text-align: left;
  font: inherit;
  cursor: pointer;
  overflow: hidden;
  transition:
    border-color var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--dur-base) var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--cyan);
  color: var(--paper);
}

.page-faq .faq-cat[aria-selected="true"] {
  background: var(--cyan-deep);
  border-color: var(--cyan);
  color: var(--paper);
}

.page-faq .faq-cat[aria-selected="true"]::before {
  transform: scaleY(1);
}

.page-faq .faq-cat__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-cat__name {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-cat__count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.page-faq .faq-cat[aria-selected="true"] .faq-cat__count {
  color: var(--paper);
}

@media (min-width: 720px) {
  .page-faq .faq-cats {
    gap: 14px;
  }

  .page-faq .faq-cat {
    padding: 20px 22px 18px;
  }

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

@media (min-width: 1080px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ============ 问答面板 ============ */
.page-faq .faq-panel {
  border-top: 1px solid var(--line);
  padding-top: clamp(22px, 3vw, 36px);
}

.page-faq .faq-panel:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 8px;
}

.page-faq .faq-panel__note {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  max-width: 48em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-panel__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 240, 206, 0.4);
}

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

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

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

.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: 3px;
  border-radius: 3px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease);
}

.page-faq .faq-item[open]::before {
  opacity: 1;
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 44px 18px 0;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur-fast) var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform var(--dur-base) var(--ease);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.page-faq .faq-item__a {
  padding: 0 0 22px;
}

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

.page-faq .faq-steps li {
  position: relative;
  padding-left: 38px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-steps li::before {
  counter-increment: faq-step;
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  top: 3px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

@media (min-width: 720px) {
  .page-faq .faq-item__q {
    font-size: 17px;
  }

  .page-faq .faq-steps li {
    font-size: 16px;
  }
}

/* 面板内配图 */
.page-faq .faq-figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  overflow: hidden;
}

/* ============ 响应时间刻度 ============ */
.page-faq .faq-sla__list {
  display: grid;
  gap: 12px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-sla__item {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: 0 16px 16px 0;
  background: var(--panel);
}

.page-faq .faq-sla__item--mint {
  border-left-color: var(--mint);
}

.page-faq .faq-sla__item--cyan {
  border-left-color: var(--cyan);
}

.page-faq .faq-sla__item--orange {
  border-left-color: var(--orange);
}

.page-faq .faq-sla__time {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-faq .faq-sla__label {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--paper);
}

.page-faq .faq-sla__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

@media (min-width: 860px) {
  .page-faq .faq-sla__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ============ 页尾求助 ============ */
.page-faq .faq-cta {
  padding-bottom: clamp(56px, 9vw, 112px);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: end;
  padding: clamp(26px, 3.6vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background:
    linear-gradient(140deg, rgba(31, 240, 206, 0.09) 0%, rgba(31, 240, 206, 0) 52%),
    var(--deep);
}

.page-faq .faq-cta__copy .lede {
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--silver);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 900px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-faq .faq-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ============ 减弱动效 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-item::before,
  .page-faq .faq-item__q::after,
  .page-faq .faq-item__q {
    transition: opacity var(--dur-base) var(--ease);
  }

  .page-faq .faq-cat::before {
    transform: none;
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease);
  }

  .page-faq .faq-cat[aria-selected="true"]::before {
    transform: none;
    opacity: 1;
  }

  .page-faq .faq-item[open] > .faq-item__q::after {
    transform: translateY(-50%);
  }
}
</PAGE_CSS>>>