.page-faq {
  --faq-radius: 26px;
  --faq-block-gap: clamp(44px, 6vw, 84px);
  --faq-answer-bg: #142e46;
  display: block;
  overflow-x: clip;
}

/* ---------- 顶部区域 ---------- */
.page-faq .faq-top {
  padding-block: clamp(18px, 3vw, 40px) 0;
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-top h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(31px, 6.2vw, 70px);
  line-height: 1.07;
  letter-spacing: -0.025em;
  color: var(--white);
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 18ch;
}

.page-faq .faq-top .lede {
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  line-height: 1.78;
  margin: 0;
}

/* ---------- 页首三个搜索框 ---------- */
.page-faq .faq-search {
  margin-top: clamp(26px, 4vw, 44px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-search__field {
  flex: 1 1 240px;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--pill);
  background: var(--stand);
  border: 1.5px solid var(--line);
  color: var(--muted);
  font-size: clamp(13.5px, 1.4vw, 15px);
  line-height: 1.4;
  text-decoration: none;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease),
    transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-search__field:hover,
.page-faq .faq-search__field:focus-visible {
  border-color: var(--lime);
  color: var(--white);
  background: #16314a;
  transform: translateY(-2px);
}

.page-faq .faq-search__icon {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  position: relative;
  transition: border-color 0.22s var(--ease);
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
  transition: background 0.22s var(--ease);
}

.page-faq .faq-search__field:hover .faq-search__icon,
.page-faq .faq-search__field:focus-visible .faq-search__icon {
  border-color: var(--lime);
}

.page-faq .faq-search__field:hover .faq-search__icon::after,
.page-faq .faq-search__field:focus-visible .faq-search__icon::after {
  background: var(--lime);
}

.page-faq .faq-search__text {
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-faq .faq-search__text b {
  color: var(--white);
  font-weight: 700;
  margin-right: 8px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(30px, 4.5vw, 52px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
  object-fit: cover;
  background: var(--stand);
}

/* ---------- 左右布局 ---------- */
.page-faq .faq-layout {
  margin-top: var(--faq-block-gap);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

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

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

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

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--pill);
  background: var(--stand);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-color: var(--lime-deep);
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 问题流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: var(--faq-block-gap);
  min-width: 0;
}

.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: 84px;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: clamp(16px, 2vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-block h2 {
  font-family: var(--font-head);
  font-size: clamp(21px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  color: var(--white);
  margin: 0;
}

.page-faq .faq-block__cards {
  display: grid;
  gap: 12px;
  min-width: 0;
}

/* ---------- 答案卡 ---------- */
.page-faq .qcard {
  background: var(--stand);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .qcard[open] {
  border-color: rgba(198, 255, 61, 0.42);
  background: var(--faq-answer-bg);
}

.page-faq .qcard > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(16px, 2vw, 20px) clamp(18px, 2.2vw, 24px);
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  outline-offset: 2px;
}

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

.page-faq .qcard > summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  margin-top: 8px;
  border-right: 2px solid var(--lime-deep);
  border-bottom: 2px solid var(--lime-deep);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease), border-color 0.22s var(--ease),
    margin-top 0.26s var(--ease);
}

.page-faq .qcard > summary:hover::after,
.page-faq .qcard > summary:focus-visible::after {
  border-color: var(--lime);
}

.page-faq .qcard[open] > summary::after {
  transform: rotate(-135deg);
  margin-top: 12px;
  border-color: var(--lime);
}

.page-faq .qcard > summary:focus-visible {
  outline: 2px solid var(--lime);
}

.page-faq .qcard__mark {
  flex: 0 0 auto;
  margin-top: 4px;
  padding: 3px 6px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--lime);
  background: rgba(198, 255, 61, 0.1);
  border: 1px solid rgba(198, 255, 61, 0.35);
}

.page-faq .qcard__body {
  padding: 0 clamp(18px, 2.2vw, 24px) clamp(18px, 2.2vw, 24px);
  color: #C3D2E1;
  font-size: 15px;
  line-height: 1.8;
  max-width: 74ch;
}

.page-faq .qcard__body p {
  margin: 0 0 10px;
}

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

.page-faq .qcard__body strong {
  color: var(--cyan);
  font-weight: 600;
}

.page-faq .qcard__body a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.4);
  transition: border-color 0.2s var(--ease);
}

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

/* ---------- 角标区块的图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 18px;
  min-width: 0;
}

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

/* ---------- 新手区块双栏 ---------- */
.page-faq .faq-block--newbie .faq-block__cards {
  grid-template-columns: minmax(0, 1fr);
}

/* ---------- 求助区块 ---------- */
.page-faq .faq-help {
  border-radius: var(--radius-xl);
  border: 1px solid rgba(198, 255, 61, 0.3);
  background:
    radial-gradient(120% 140% at 10% 0%, rgba(198, 255, 61, 0.14), transparent 62%),
    radial-gradient(110% 130% at 100% 100%, rgba(111, 227, 210, 0.1), transparent 60%),
    var(--stand);
  padding: clamp(22px, 3.2vw, 38px);
}

.page-faq .faq-help .faq-block__head {
  border-bottom-color: rgba(198, 255, 61, 0.22);
}

.page-faq .faq-help__text {
  margin: 0 0 22px;
  color: #C3D2E1;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.8;
  max-width: 68ch;
}

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

/* ---------- 媒体查询 ---------- */
@media (max-width: 520px) {
  .page-faq .faq-search {
    flex-direction: column;
  }

  .page-faq .faq-search__field {
    flex: 1 1 auto;
    width: 100%;
  }

  .page-faq .faq-search__text {
    white-space: normal;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
  }
}

@media (min-width: 768px) {
  .page-faq .faq-block--newbie .faq-block__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list > li {
    flex: none;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: 9px 12px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border: 0;
    border-left: 2px solid var(--line);
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--lime);
    color: var(--white);
    background: rgba(198, 255, 61, 0.07);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-search__field,
  .page-faq .qcard,
  .page-faq .qcard > summary::after,
  .page-faq .faq-index__link,
  .page-faq .qcard__body a {
    transition: none;
  }

  .page-faq .faq-search__field:hover {
    transform: none;
  }
}