.page-faq {
  --faq-gap: clamp(40px, 6vw, 76px);
  --faq-radius: 0;
  background: var(--ink-900);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--ink-700);
  background:
    radial-gradient(120% 96% at 88% -12%, rgba(198, 255, 61, 0.13), transparent 62%),
    radial-gradient(88% 70% at 6% 108%, rgba(47, 184, 198, 0.10), transparent 60%),
    linear-gradient(180deg, var(--ink-850), var(--ink-900));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ink-700) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink-700) 1px, transparent 1px);
  background-size: 58px 58px;
  opacity: 0.32;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 34px;
  padding-top: clamp(34px, 6vw, 78px);
  padding-bottom: clamp(34px, 6vw, 66px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 20px;
}

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--lime);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--text);
  max-width: 16ch;
}

.page-faq .faq-lead {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-hero__side {
  display: grid;
  gap: 12px;
}

.page-faq .faq-entry {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 16px;
  align-items: center;
  padding: 15px 18px;
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--lime);
  background: var(--ink-800);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-entry--orange {
  border-left-color: var(--orange);
}

.page-faq .faq-entry__idx {
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 24px;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-faq .faq-entry--orange .faq-entry__idx {
  color: var(--orange);
}

.page-faq .faq-entry__label {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--text);
}

.page-faq .faq-entry__hint {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-entry:hover,
.page-faq .faq-entry:focus-visible {
  border-color: var(--lime);
  background: var(--ink-700);
  transform: translateY(-2px);
  outline: none;
}

/* ============ 主题标签条 ============ */
.page-faq .faq-topics {
  border-bottom: 1px solid var(--ink-700);
  background: var(--ink-850);
}

.page-faq .faq-topics__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 15px 0;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 15px;
  border: 1px solid var(--ink-700);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--text-soft);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-chip .mono {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--lime);
  background: rgba(198, 255, 61, 0.08);
  color: var(--text);
  outline: none;
}

.page-faq .faq-chip:hover .mono {
  color: var(--lime);
}

/* ============ 结构示意图 ============ */
.page-faq .faq-map {
  margin: var(--faq-gap) 0 0;
}

.page-faq .faq-map__frame {
  border: 1px solid var(--ink-700);
  background: var(--ink-850);
  overflow: hidden;
}

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

.page-faq .faq-map__cap {
  display: block;
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--qinghai);
  color: var(--muted);
  letter-spacing: 0.12em;
  line-height: 1.7;
}

/* ============ 分组 ============ */
.page-faq .faq-group {
  padding-top: var(--faq-gap);
  scroll-margin-top: 130px;
}

.page-faq .faq-head {
  display: grid;
  grid-template-columns: 46px 1fr;
  align-items: center;
  gap: 5px 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ink-700);
  margin-bottom: 24px;
}

.page-faq .faq-head__idx {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--lime);
  color: var(--lime);
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-faq .faq-head__title {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.6vw, 32px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-head__note {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-group__body {
  display: grid;
  gap: 26px;
}

/* ============ 折叠条目 ============ */
.page-faq .faq-list {
  display: grid;
}

.page-faq .faq-item {
  position: relative;
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  border-left: 2px solid transparent;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 20px;
  background: var(--muted-dim);
  transition: height 0.26s var(--ease), background 0.26s var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ink-800);
  border-color: var(--ink-700);
}

.page-faq .faq-item[open]::before {
  height: 100%;
  background: var(--lime);
}

.page-faq .faq-item:hover::before {
  background: var(--lime);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 15px 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  font-family: var(--font-data);
  font-weight: 400;
  font-size: 19px;
  line-height: 1;
  color: var(--muted);
  transition: color 0.18s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--lime);
}

.page-faq .faq-item > summary:hover {
  color: var(--lime);
}

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

.page-faq .faq-answer {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-answer p {
  margin: 0 0 8px;
  max-width: 70ch;
}

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

/* ============ 右侧附图 ============ */
.page-faq .faq-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--ink-700);
  background: var(--ink-850);
  overflow: hidden;
}

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

.page-faq .faq-aside__note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ============ 服务通道卡 ============ */
.page-faq .faq-channel {
  display: grid;
  gap: 7px;
  padding: 20px 20px 22px;
  border: 1px solid var(--ink-700);
  border-top: 3px solid var(--qinghai);
  background: var(--ink-800);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-channel--ghost {
  border-top-color: var(--lime);
  background: var(--ink-850);
}

.page-faq .faq-channel__k {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--qinghai);
}

.page-faq .faq-channel--ghost .faq-channel__k {
  color: var(--lime);
}

.page-faq .faq-channel__t {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.3;
  color: var(--text);
}

.page-faq .faq-channel__d {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-channel:hover,
.page-faq .faq-channel:focus-visible {
  border-color: var(--lime);
  background: var(--ink-700);
  transform: translateY(-2px);
  outline: none;
}

/* ============ 入口位置速查 ============ */
.page-faq .faq-route__lead {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-route-wrap {
  overflow-x: auto;
  border: 1px solid var(--ink-700);
  background:
    linear-gradient(180deg, rgba(47, 184, 198, 0.06), transparent 70%),
    var(--ink-850);
  padding: 20px 16px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-route {
  display: block;
  width: 100%;
  min-width: 600px;
  max-width: 780px;
  height: auto;
  margin: 0 auto;
}

.page-faq .faq-route rect {
  fill: var(--ink-800);
  stroke: var(--ink-700);
  stroke-width: 1;
  transition: stroke 0.18s var(--ease), fill 0.18s var(--ease);
}

.page-faq .faq-route .route-idx {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  fill: var(--lime);
}

.page-faq .faq-route .route-txt {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  fill: var(--text);
}

.page-faq .faq-route .route-line {
  stroke: var(--ink-700);
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
}

.page-faq .faq-route .route-out text {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  fill: var(--text);
}

.page-faq .faq-route .route-out--lime rect {
  stroke: var(--lime);
  fill: rgba(198, 255, 61, 0.07);
}

.page-faq .faq-route .route-out--orange rect {
  stroke: var(--orange);
  fill: rgba(255, 122, 47, 0.07);
}

.page-faq .faq-route .route-node:hover rect {
  stroke: var(--lime);
  fill: var(--ink-700);
}

.page-faq .faq-route .route-out--lime:hover rect {
  fill: rgba(198, 255, 61, 0.16);
}

.page-faq .faq-route .route-out--orange:hover rect {
  fill: rgba(255, 122, 47, 0.16);
}

.page-faq .faq-route__foot {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--ink-700);
}

.page-faq .faq-route__foot p {
  margin: 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-route__foot .u-link {
  color: var(--lime);
}

/* ============ 媒体查询 ============ */
@media (min-width: 720px) {
  .page-faq .faq-aside {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.62fr) minmax(258px, 0.72fr);
    align-items: end;
    gap: 52px;
  }

  .page-faq .faq-group__body--split {
    grid-template-columns: minmax(0, 1.48fr) minmax(268px, 0.72fr);
    gap: 38px;
    align-items: start;
  }

  .page-faq .faq-group__body--flip {
    grid-template-columns: minmax(0, 1.48fr) minmax(268px, 0.72fr);
  }

  .page-faq .faq-answer {
    padding: 0 22px 20px;
  }

  .page-faq .faq-item > summary {
    padding: 17px 22px;
    font-size: 17px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group__body--split {
    grid-template-columns: minmax(0, 1.42fr) minmax(300px, 0.78fr);
    gap: 46px;
  }
}

@media (max-width: 599px) {
  .page-faq .faq-head {
    grid-template-columns: 38px 1fr;
    gap: 4px 12px;
  }

  .page-faq .faq-head__idx {
    width: 38px;
    height: 38px;
    font-size: 13px;
  }

  .page-faq .faq-route-wrap {
    padding: 16px 12px;
  }
}