.page-faq {
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 84px 0 60px;
  background: linear-gradient(152deg, #0B2A4A 0%, #071B31 58%, #0A2135 100%);
  color: #ffffff;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 76, 122, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 76, 122, 0.34) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -52%;
  width: 70%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.28), rgba(46, 196, 182, 0.08) 68%, transparent 100%);
  transform: rotate(-9deg);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .crumbs {
  color: rgba(228, 237, 245, 0.62);
  margin-bottom: 30px;
}

.page-faq .faq-hero .crumbs a {
  color: rgba(228, 237, 245, 0.82);
  text-decoration: none;
}

.page-faq .faq-hero .crumbs a:hover,
.page-faq .faq-hero .crumbs a:focus-visible {
  color: var(--orange);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 36px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--teal);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(28px, 7vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: #ffffff;
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--orange);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 48ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.82;
  color: rgba(228, 237, 245, 0.82);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid rgba(30, 76, 122, 0.62);
  background: rgba(30, 76, 122, 0.5);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(7, 27, 49, 0.74);
}

.page-faq .faq-hero__fig {
  flex: none;
  min-width: 2.4em;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lab {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(228, 237, 245, 0.78);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-bar {
  padding: 14px 0;
  background: var(--navy-deep);
  border-bottom: 1px solid var(--blue-line);
}

.page-faq .faq-bar .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-faq .filter-bar__label {
  margin-right: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(228, 237, 245, 0.55);
}

.page-faq .filter {
  appearance: none;
  padding: 6px 15px;
  border: 1px solid rgba(30, 76, 122, 0.75);
  border-radius: 999px;
  background: transparent;
  color: rgba(228, 237, 245, 0.82);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .filter:hover,
.page-faq .filter:focus-visible {
  border-color: var(--orange);
  color: #ffffff;
}

.page-faq .filter.is-active,
.page-faq .filter[aria-pressed="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: #ffffff;
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: 52px 0 88px;
  background:
    radial-gradient(circle at 94% 4%, rgba(46, 196, 182, 0.1), transparent 42%),
    radial-gradient(circle at 2% 94%, rgba(255, 107, 53, 0.09), transparent 40%),
    var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

/* 左侧索引 */
.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-3);
}

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

.page-faq .faq-side__item {
  flex: none;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid var(--hair-soft);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.66);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  border-left-color: var(--teal);
  background: #ffffff;
  transform: translateX(2px);
}

.page-faq .faq-side__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--orange);
}

.page-faq .faq-side__label {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ink-2);
}

/* 分组 */
.page-faq .faq-group {
  margin-bottom: 54px;
  scroll-margin-top: 24px;
}

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

.page-faq .faq-group__head {
  position: relative;
  margin-bottom: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 52px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-group__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 4vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.008em;
  color: var(--ink-1);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 54ch;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-2);
}

.page-faq .faq-group__split {
  display: grid;
  gap: 24px;
}

/* 问答条目 */
.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--orange-soft);
  box-shadow: 0 6px 18px rgba(11, 42, 74, 0.07);
}

.page-faq .faq-item[open] {
  border-color: var(--orange);
  background: #ffffff;
}

.page-faq .faq-item > summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.58;
  color: var(--ink-1);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--orange), var(--teal));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 200ms var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: scaleX(1);
}

.page-faq .faq-item__q {
  flex: none;
  min-width: 26px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--orange);
}

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

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  margin-left: auto;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 6.25px;
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-item__icon::after {
  left: 6.25px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 2px 18px 18px 56px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure--square {
  max-width: 340px;
}

.page-faq .faq-figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--mist);
}

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

.page-faq .faq-figure .figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--ink-3);
}

.page-faq .faq-group .figure--wide {
  margin-bottom: 22px;
}

/* 联系路线 */
.page-faq .faq-routes {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-route {
  position: relative;
  display: block;
  padding: 22px 22px 20px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-route:hover,
.page-faq .faq-route:focus-visible {
  border-color: var(--orange);
  border-left-color: var(--orange);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(11, 42, 74, 0.09);
}

.page-faq .faq-route__no {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
}

.page-faq .faq-route__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink-1);
}

.page-faq .faq-route__text {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-route__more {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (max-width: 559px) {
  .page-faq .faq-item__body {
    padding-left: 18px;
  }

  .page-faq .faq-figure--square {
    max-width: 100%;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 108px 0 80px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-body {
    padding: 72px 0 108px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

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

  .page-faq .faq-side__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-side__item {
    display: block;
  }

  .page-faq .faq-side__link {
    margin-bottom: 6px;
    white-space: normal;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-route,
  .page-faq .faq-side__link,
  .page-faq .filter {
    transition-duration: 1ms;
    transform: none;
  }
}