.page-faq {
  --faq-accent: var(--gold);
  --faq-rail-w: 232px;
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 页面头部 ---------- */
.page-faq .faq-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-facts__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--gold);
  border-radius: 2px 12px 2px 12px;
  background: linear-gradient(180deg, rgba(233, 162, 59, .07), rgba(20, 24, 33, .6));
}

.page-faq .faq-facts__item:nth-child(2) {
  border-top-color: var(--jade);
  background: linear-gradient(180deg, rgba(53, 201, 164, .07), rgba(20, 24, 33, .6));
}

.page-faq .faq-facts__item:nth-child(3) {
  border-top-color: var(--crimson);
  background: linear-gradient(180deg, rgba(178, 60, 90, .08), rgba(20, 24, 33, .6));
}

.page-faq .faq-facts__k {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gold-hi);
}

.page-faq .faq-facts__item:nth-child(2) .faq-facts__k {
  color: var(--jade);
}

.page-faq .faq-facts__item:nth-child(3) .faq-facts__k {
  color: var(--crimson);
}

.page-faq .faq-facts__v {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(26px, 4vw, 46px);
  align-items: start;
}

/* ---------- 分类索引栏 ---------- */
.page-faq .faq-rail {
  min-width: 0;
  padding: 14px;
  border: 1px dashed var(--line);
  border-radius: 3px 14px 3px 14px;
  background: rgba(20, 24, 33, .72);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 174px;
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--faq-c, var(--gold));
  border-radius: 2px 10px 2px 10px;
  background: rgba(30, 35, 46, .5);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--duration) var(--ease),
              background var(--duration) var(--ease),
              color var(--duration) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--faq-c, var(--gold));
  background: rgba(233, 162, 59, .12);
  color: var(--ink-strong);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-rail__link--cfg { --faq-c: var(--gold); }
.page-faq .faq-rail__link--srv { --faq-c: var(--jade); }
.page-faq .faq-rail__link--gft { --faq-c: var(--crimson); }
.page-faq .faq-rail__link--acc { --faq-c: var(--indigo); }
.page-faq .faq-rail__link--cop { --faq-c: var(--warn); }

.page-faq .faq-rail__idx {
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-rail__name {
  flex: 1 1 auto;
}

.page-faq .faq-rail__count {
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 3.2vw, 34px);
  min-width: 0;
}

.page-faq .faq-block {
  --faq-accent: var(--gold);
  position: relative;
  min-width: 0;
  padding: clamp(18px, 2.6vw, 30px) clamp(16px, 2.4vw, 28px);
  border: 1px solid var(--line-soft);
  border-radius: 3px 18px 3px 18px;
  background: linear-gradient(180deg, rgba(20, 24, 33, .94), rgba(10, 12, 16, .9));
  scroll-margin-top: 90px;
}

.page-faq .faq-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--faq-accent), transparent);
}

.page-faq .faq-block--srv { --faq-accent: var(--jade); }
.page-faq .faq-block--gft { --faq-accent: var(--crimson); }
.page-faq .faq-block--acc { --faq-accent: var(--indigo); }
.page-faq .faq-block--cop { --faq-accent: var(--warn); }

.page-faq .faq-block__tab {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 9px;
  border: 1px solid var(--faq-accent);
  border-radius: 2px;
  color: var(--faq-accent);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-faq .faq-block__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.4vw, 27px);
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink-strong);
}

.page-faq .faq-block__desc {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 图框 ---------- */
.page-faq .faq-media {
  margin: 0 0 20px;
}

.page-faq .faq-media--side {
  margin: 16px 0 0;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: 2px 12px 2px 12px;
  background: rgba(30, 35, 46, .42);
  transition: border-color var(--duration) var(--ease),
              background var(--duration) var(--ease);
}

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

.page-faq .faq-item[open] {
  border-color: var(--faq-accent);
  background: rgba(38, 44, 57, .62);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px 14px 19px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--faq-accent);
  opacity: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), 0 100%);
  transition: opacity var(--duration) var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::before {
  opacity: .95;
}

.page-faq .faq-item__q:hover {
  color: var(--ink-strong);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -3px;
  border-radius: 2px 12px 2px 12px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
  transition: color var(--duration) var(--ease);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--ink-strong);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__sign {
  flex: 0 0 auto;
  width: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.45;
  color: var(--muted);
}

.page-faq .faq-item__sign::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item__sign::before {
  content: "−";
}

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

.page-faq .faq-item__a {
  margin: 0 16px 0 19px;
  padding: 13px 0 16px;
  border-top: 1px dashed var(--line-soft);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .faq-item__a a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--ink-strong);
}

/* ---------- 账号区块内的双列排布 ---------- */
.page-faq .faq-grid-acc {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 3px 20px 3px 20px;
  background:
    radial-gradient(120% 140% at 100% 0, rgba(233, 162, 59, .16), transparent 58%),
    linear-gradient(180deg, rgba(20, 24, 33, .96), rgba(10, 12, 16, .96));
  scroll-margin-top: 90px;
}

.page-faq .faq-contact__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 4px 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__item {
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 2px 10px 2px 10px;
  background: rgba(30, 35, 46, .5);
}

.page-faq .faq-contact__k {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-faq .faq-contact__v {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail__item {
    flex: 1 1 auto;
  }

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

  .page-faq .faq-item__q {
    padding: 16px 18px 16px 21px;
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    margin: 0 18px 0 21px;
    padding: 15px 0 19px;
  }

  .page-faq .faq-grid-acc {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    gap: clamp(20px, 2.6vw, 32px);
    align-items: start;
  }

  .page-faq .faq-media--side {
    margin: 0;
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q::before,
  .page-faq .faq-item__no,
  .page-faq .faq-rail__link {
    transition: none;
  }
}