.page-faq {
  --faq-pad: 16px;
  background: var(--deep);
  color: var(--paper);
  overflow-x: hidden;
}

.page-faq .bs-shell {
  padding-left: var(--faq-pad);
  padding-right: var(--faq-pad);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 36px 0 62px;
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(43, 232, 165, 0.16) 0%, rgba(10, 27, 46, 0) 60%),
    linear-gradient(135deg, var(--deep) 0%, var(--pitch) 58%, var(--mint-dim) 118%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), 0 100%);
}

.page-faq .faq-hero__mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 58, 85, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 58, 85, 0.5) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(160deg, rgba(0, 0, 0, 0.9), transparent 72%);
  mask-image: linear-gradient(160deg, rgba(0, 0, 0, 0.9), transparent 72%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  margin-top: 26px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__desc {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-hero__aside {
  margin-top: 34px;
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-faq .faq-facts__item {
  padding: 16px 14px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 10, 18, 0.42);
}

.page-faq .faq-facts__num {
  display: block;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-facts__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 教程主线 ---------- */

.page-faq .faq-walk {
  padding-top: 12px;
}

.page-faq .faq-walk__title {
  margin-top: 10px;
}

.page-faq .faq-walk__note {
  max-width: 42ch;
  margin-top: 10px;
}

.page-faq .faq-tabs {
  margin-top: 26px;
}

.page-faq .faq-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 2px 2px 0 0;
  background: rgba(18, 49, 79, 0.35);
  color: var(--paper-2);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-tab:hover {
  border-color: var(--mint-dim);
  color: var(--paper);
}

.page-faq .faq-tab[aria-selected="true"] {
  border-color: var(--mint);
  background: rgba(43, 232, 165, 0.12);
  color: var(--mint);
}

.page-faq .faq-tab__no {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mint-dim);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab__no {
  color: var(--mint);
}

.page-faq .faq-panel {
  padding-top: 26px;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

/* ---------- 步骤条 ---------- */

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

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-steps__item:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-steps__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 34px;
  background: var(--mint);
  color: var(--midnight);
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-steps__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-2);
}

/* ---------- 提示与键盘 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}

.page-faq .faq-tips {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--mint);
  background: rgba(18, 49, 79, 0.42);
}

.page-faq .faq-tips__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-faq .faq-tips__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-tips__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-2);
}

.page-faq .faq-tips__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background: var(--mint);
}

.page-faq .faq-kbd {
  display: inline-block;
  min-width: 22px;
  margin: 0 2px;
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  background: var(--midnight);
  color: var(--mint);
  font-family: var(--font-num);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(18, 49, 79, 0.7), rgba(5, 10, 18, 0.92));
}

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

.page-faq .faq-figure__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-figure--pen {
  margin-top: 26px;
}

/* ---------- 转会窗口筛选 ---------- */

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-filter__btn {
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: rgba(10, 27, 46, 0.72);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-filter__btn:hover {
  border-color: var(--mint-dim);
  color: var(--paper);
}

.page-faq .faq-filter__btn[aria-pressed="true"] {
  border-color: var(--mint);
  background: rgba(43, 232, 165, 0.1);
  color: var(--mint);
}

.page-faq .faq-wlist {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-wlist__item {
  padding: 14px 16px 16px;
  border: 1px solid var(--line);
  background: rgba(18, 49, 79, 0.32);
}

.page-faq .faq-wlist__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.01em;
}

.page-faq .faq-wlist__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-2);
}

.page-faq .faq-years {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-years__title {
  margin-right: 4px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-years__tick {
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-years__tick--now {
  border-color: var(--mint-dim);
  color: var(--mint);
}

.page-faq .faq-years__note {
  margin-top: 12px;
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-qas__note {
  max-width: 40ch;
  margin-top: 10px;
}

.page-faq .faq-qa {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  transition: color 160ms var(--ease);
}

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

.page-faq .faq-qa__q:hover {
  color: var(--mint);
}

.page-faq .faq-qa__icon {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--line);
  background: rgba(43, 232, 165, 0.08);
}

.page-faq .faq-qa__icon::before,
.page-faq .faq-qa__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--mint);
}

.page-faq .faq-qa__icon::before {
  width: 9px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-qa__icon::after {
  width: 1px;
  height: 9px;
  transform: translate(-50%, -50%);
  transition: transform 180ms var(--ease), opacity 180ms var(--ease);
}

.page-faq .faq-qa__item[open] .faq-qa__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-qa__a {
  padding: 0 30px 20px 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .faq-qa__a p {
  margin: 0;
}

/* ---------- 纠错区 ---------- */

.page-faq .faq-fix {
  position: relative;
  padding: 46px 0 40px;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(150deg, rgba(14, 122, 90, 0.16) 0%, rgba(5, 10, 18, 0) 42%),
    linear-gradient(180deg, var(--pitch) 0%, var(--midnight) 100%);
}

.page-faq .faq-fix__title {
  margin-top: 10px;
}

.page-faq .faq-fix__text {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-2);
  max-width: 66ch;
}

.page-faq .faq-fix__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-fix__list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-2);
}

.page-faq .faq-fix__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  border: 1px solid var(--mint-dim);
  color: var(--mint);
  font-family: var(--font-num);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fix__aside {
  margin-top: 30px;
}

.page-faq .faq-kv {
  border: 1px solid var(--line);
  background: rgba(10, 27, 46, 0.72);
}

.page-faq .faq-kv .bs-kv__row {
  display: grid;
  grid-template-columns: minmax(0, 88px) minmax(0, 1fr);
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-kv .bs-kv__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-kv .bs-kv__key {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .faq-kv .bs-kv__val {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-kv__note {
  margin-top: 12px;
}

.page-faq .faq-fix__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 延伸入口 ---------- */

.page-faq .faq-more {
  padding-bottom: 56px;
}

.page-faq .faq-more__inner {
  padding: 26px 20px 24px;
  border: 1px solid var(--line);
  background: rgba(18, 49, 79, 0.28);
}

.page-faq .faq-more__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-more__text {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-2);
}

.page-faq .faq-more__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-faq .faq-more__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  color: var(--paper-2);
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-more__link .bs-num {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mint-dim);
}

.page-faq .faq-more__link:hover {
  border-color: var(--mint);
  background: rgba(43, 232, 165, 0.08);
  color: var(--mint);
}

.page-faq .faq-more__link:hover .bs-num {
  color: var(--mint);
}

/* ---------- 焦点可见性 ---------- */

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible,
.page-faq [tabindex]:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq {
    --faq-pad: 24px;
  }

  .page-faq .faq-facts__num {
    font-size: 34px;
  }

  .page-faq .faq-steps__item {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 20px;
  }

  .page-faq .faq-steps__no {
    width: 48px;
    height: 38px;
  }

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

  .page-faq .faq-qa__q {
    font-size: 17px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 52px 0 84px;
  }

  .page-faq .faq-hero__aside {
    margin-top: 0;
    padding-left: 24px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: start;
    gap: 26px;
  }

  .page-faq .faq-figure--pen {
    max-width: 78%;
  }

  .page-faq .faq-fix {
    padding: 60px 0 52px;
  }

  .page-faq .faq-fix__aside {
    margin-top: 0;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-wlist {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-panel {
    padding-top: 32px;
  }

  .page-faq .faq-qa__a {
    padding-right: 120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-filter__btn,
  .page-faq .faq-qa__q,
  .page-faq .faq-qa__icon::after,
  .page-faq .faq-more__link {
    transition: none;
  }
}