.page-faq {
  --faq-code: var(--neon);
  background-color: var(--ink-0);
  background-image:
    radial-gradient(circle at 90% -8%, rgba(53, 200, 255, 0.10), transparent 46%),
    radial-gradient(circle at 2% 30%, rgba(198, 255, 61, 0.05), transparent 42%);
  background-repeat: no-repeat;
  padding-bottom: 96px;
}

/* ---------- 面包屑与页首 ---------- */
.page-faq .crumbs {
  padding-top: 24px;
  font-size: 13px;
}

.page-faq .faq-head {
  padding-top: 20px;
  padding-bottom: 0;
}

.page-faq .faq-head .page-head__title {
  max-width: 22ch;
}

.page-faq .faq-head__lead {
  max-width: 62ch;
  margin-top: 14px;
}

.page-faq .faq-ticker {
  margin-top: 22px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-faq .faq-ticker .num {
  color: var(--neon);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-body {
  margin-top: 28px;
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 13px 16px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
}

.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-filter .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-top: 48px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__code {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  background: rgba(198, 255, 61, 0.12);
  border: 1px solid var(--neon-dim);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-faq .faq-group__head-text {
  min-width: 0;
}

.page-faq .faq-group__title {
  margin: 2px 0 0;
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__hint {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 58ch;
}

/* ---------- 自检三步 ---------- */
.page-faq .faq-check {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 22px;
}

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

.page-faq .faq-step {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--line-soft);
  transform: translateX(2px);
}

.page-faq .faq-step__n {
  flex: none;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: rgba(198, 255, 61, 0.12);
  border: 1px solid var(--neon-dim);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-step__text {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

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

.page-faq .faq-media--check img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-media--wide {
  margin-top: 22px;
}

.page-faq .faq-media--wide img {
  aspect-ratio: 7 / 4;
}

.page-faq .faq-media__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--ink-1);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* ---------- 折叠问题 ---------- */
.page-faq .faq-list {
  margin-top: 6px;
  border-top: 1px solid transparent;
}

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

.page-faq .faq-item:hover {
  background: rgba(28, 38, 34, 0.55);
}

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

.page-faq .faq-item .fold__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 8px 18px 2px;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-code {
  flex: none;
  min-width: 40px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue);
}

.page-faq .faq-item .fold__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.005em;
}

.page-faq .faq-item .fold__sign {
  flex: none;
  width: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.35;
  color: var(--muted);
  transition: color var(--t) var(--ease);
}

.page-faq .faq-item .fold__trigger:hover .fold__sign,
.page-faq .faq-item .fold__trigger[aria-expanded="true"] .fold__sign {
  color: var(--neon);
}

.page-faq .faq-a {
  padding: 2px 8px 22px 56px;
}

/* ---------- 步骤方块 ---------- */
.page-faq .faq-do {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 10px;
}

.page-faq .faq-do li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  background: var(--ink-0);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.65;
}

.page-faq .faq-do__n {
  flex: none;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  background: rgba(198, 255, 61, 0.14);
  border: 1px solid var(--neon-dim);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
}

.page-faq .faq-a .aside-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
}

.page-faq .aside-note .num {
  color: var(--orange);
}

/* ---------- 人工帮助 ---------- */
.page-faq .faq-group--help .faq-help {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-help__cell {
  background: var(--ink-1);
  padding: 20px 18px;
}

.page-faq .faq-help__cell--accent {
  background: var(--ink-2);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-help__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-help__val {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--neon);
  word-break: break-all;
}

.page-faq .faq-help__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-more__hint a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-dim);
}

.page-faq .faq-more__hint a:hover {
  color: var(--neon);
  border-bottom-color: var(--neon-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-check {
    margin-top: 26px;
  }

  .page-faq .faq-group__code {
    width: 36px;
    height: 36px;
  }

  .page-faq .faq-group {
    margin-top: 56px;
  }

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

  .page-faq .faq-item .fold__trigger {
    align-items: center;
    padding: 20px 10px 20px 2px;
  }

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

@media (min-width: 980px) {
  .page-faq .faq-check {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-head .page-head__title {
    max-width: 24ch;
  }

  .page-faq .faq-a {
    padding-left: 58px;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-a {
    padding: 0 2px 20px 2px;
  }

  .page-faq .faq-code {
    min-width: 34px;
  }

  .page-faq .faq-do {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-ticker {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item,
  .page-faq .faq-item .fold__sign {
    transition: none;
  }

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