.page-faq {
  --faq-rail: 268px;
  --faq-gap: 48px;
  --faq-line: rgba(200, 205, 212, 0.16);
  padding-bottom: 88px;
}

/* ---------- 面包屑留白 ---------- */
.page-faq .breadcrumb {
  padding: 22px 0 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 8px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 480px;
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(53, 224, 208, 0.16), transparent 58%),
    radial-gradient(92% 84% at 94% 6%, rgba(78, 127, 184, 0.2), transparent 62%);
  clip-path: polygon(0 0, 100% 0, 100% 64%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__kicker {
  position: relative;
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

.page-faq .faq-hero__title {
  position: relative;
  margin: 0 0 20px;
  max-width: 18em;
  font-size: clamp(29px, 5.2vw, 56px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  position: relative;
  margin: 0 0 34px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero__figure .media__frame {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-faq .faq-hero__figure .media__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 通用小节头 ---------- */
.page-faq .faq-sechead {
  display: grid;
  gap: 8px;
  padding-bottom: 4px;
}

.page-faq .faq-sechead__title {
  margin: 0;
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-sechead__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-steps {
  padding: 60px 0 0;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 22px 22px;
  background: var(--ink-2);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 224, 208, 0));
}

.page-faq .faq-step:hover {
  background: var(--hover);
  border-color: rgba(53, 224, 208, 0.42);
}

.page-faq .faq-step__no {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--cyan);
  border-radius: 3px;
}

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 主体双轨 ---------- */
.page-faq .faq-body {
  padding: 68px 0 0;
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-panels {
  display: grid;
  gap: 62px;
  min-width: 0;
}

/* ---------- 左侧类别导轨 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__item {
  flex: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--paper);
  text-decoration: none;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--hover);
  border-color: rgba(53, 224, 208, 0.42);
  color: var(--cyan);
}

.page-faq .faq-rail__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 27px;
  height: 22px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  background: rgba(53, 224, 208, 0.12);
  border: 1px solid rgba(53, 224, 208, 0.45);
  border-radius: 3px;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-rail__link:hover .faq-rail__badge,
.page-faq .faq-rail__link:focus-visible .faq-rail__badge {
  background: var(--cyan);
  color: var(--ink);
}

/* ---------- 分类块 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__badge {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--cyan);
  border-radius: 3px;
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-group__split {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.page-faq .faq-group__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-faq .faq-figure .media__frame {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  margin-top: 4px;
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 19px 2px 19px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}

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

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

.page-faq .faq-item__marker {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 5px;
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-item__marker::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__marker::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

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

.page-faq .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item__a {
  margin: 0 0 24px 30px;
  padding: 2px 0 2px 18px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__a {
  border-left-color: var(--orange);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--silver);
}

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

/* ---------- 正文内跳转 ---------- */
.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.35);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .faq-link::after {
  content: " · " attr(data-target);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver);
  opacity: 0.55;
  transition: opacity 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-bottom-color: var(--orange);
}

.page-faq .faq-link:hover::after,
.page-faq .faq-link:focus-visible::after {
  opacity: 1;
  color: var(--orange);
}

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

/* ---------- 840px 以上 ---------- */
@media (min-width: 840px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 32px;
    align-items: center;
  }
}

/* ---------- 1024px 以上：常驻双轨 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    white-space: normal;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius) var(--radius) 0;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--orange);
  }

  .page-faq .faq-hero {
    padding-top: 34px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 600px) {
  .page-faq {
    padding-bottom: 64px;
  }

  .page-faq .faq-hero__lead {
    font-size: 15px;
  }

  .page-faq .faq-item__a {
    margin-left: 0;
    padding-left: 14px;
  }

  .page-faq .faq-steps {
    padding-top: 48px;
  }

  .page-faq .faq-body {
    padding-top: 52px;
  }

  .page-faq .faq-panels {
    gap: 48px;
  }

  .page-faq .faq-group__badge {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item__q,
  .page-faq .faq-item__a,
  .page-faq .faq-item__marker::before,
  .page-faq .faq-item__marker::after,
  .page-faq .faq-rail__link,
  .page-faq .faq-rail__badge,
  .page-faq .faq-link,
  .page-faq .faq-link::after {
    transition: none;
  }
}