.page-faq {
  --faq-ink-dark: #14203A;
  --faq-rule: rgba(34, 48, 79, .9);
  --faq-grid-line: rgba(34, 48, 79, .5);
}

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

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 5vw, 64px) 0 clamp(26px, 3.6vw, 48px);
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(56, 242, 210, .10), transparent 58%),
    radial-gradient(90% 80% at 4% 104%, rgba(255, 106, 43, .13), transparent 62%),
    var(--va-void);
  border-bottom: 1px solid var(--va-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: .42;
  -webkit-mask-image: linear-gradient(to bottom, #000 4%, transparent 92%);
  mask-image: linear-gradient(to bottom, #000 4%, transparent 92%);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--va-font-display);
  font-weight: 800;
  font-size: clamp(31px, 5.4vw, 60px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--va-ink);
  text-wrap: balance;
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  max-width: 33em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--va-mist);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--va-line);
  border: 1px solid var(--va-line);
}

.page-faq .faq-hero__stat {
  background: var(--va-cabin);
  padding: 16px 14px 18px;
}

.page-faq .faq-hero__stat dt {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--va-mist);
}

.page-faq .faq-hero__stat dd {
  margin: 8px 0 0;
  font-family: var(--va-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1;
  color: var(--va-lava);
}

.page-faq .faq-hero__stat dd span {
  font-size: .44em;
  margin-left: 3px;
  color: var(--va-mist);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filterbar {
  padding-top: clamp(20px, 2.6vw, 30px);
}

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

.page-faq .faq-filterbar .va-filter__meta {
  margin-left: auto;
}

/* ---------- 栏目导览图 ---------- */
.page-faq .faq-map {
  padding-top: clamp(26px, 3.4vw, 40px);
}

.page-faq .faq-map__fig {
  margin: 0;
}

.page-faq .faq-map__fig .va-media__frame {
  border: 1px solid var(--va-line);
  background: var(--va-cabin);
  overflow: hidden;
}

.page-faq .faq-map__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-map__fig .va-media__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--va-mist);
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-top: clamp(38px, 5.4vw, 72px);
}

/* ---------- 左侧分组栏 ---------- */
.page-faq .faq-side {
  border-top: 1px solid var(--va-rule);
  padding-top: 18px;
}

.page-faq .faq-side__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--va-mist);
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side__link {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  font-size: 14px;
  color: var(--va-ink);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background-color .18s var(--va-ease), border-color .18s var(--va-ease);
}

.page-faq .faq-side__code {
  font-family: var(--va-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--va-mist);
  transition: color .18s var(--va-ease);
}

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

.page-faq .faq-side__count {
  font-family: var(--va-font-mono);
  font-size: 12px;
  color: var(--va-mist);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  background: var(--va-cabin);
  border-left-color: var(--va-lava);
  outline: none;
}

.page-faq .faq-side__link:hover .faq-side__code,
.page-faq .faq-side__link:focus-visible .faq-side__code {
  color: var(--va-lava);
}

.page-faq .faq-side__quick {
  margin-top: 22px;
  padding: 16px 16px 18px;
  background: var(--va-cabin);
  border: 1px solid var(--va-line);
  border-left: 2px solid var(--va-cyan);
}

.page-faq .faq-side__quick-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--va-ink);
}

.page-faq .faq-side__quick-text {
  margin: 8px 0 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--va-mist);
}

.page-faq .faq-side__btn {
  text-decoration: none;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 4.6vw, 58px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--va-rule);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--va-ink);
}

.page-faq .faq-group__title::before {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 1px;
  background: var(--va-cyan);
}

.page-faq .faq-group__note {
  margin: 0;
  font-family: var(--va-font-mono);
  font-size: 12px;
  color: var(--va-mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--va-line);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: baseline;
  padding: 17px 6px 16px 0;
  cursor: pointer;
  list-style: none;
  transition: background-color .18s var(--va-ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  background: rgba(14, 26, 56, .55);
}

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--va-cyan);
  outline-offset: -1px;
}

.page-faq .faq-item__idx {
  font-family: var(--va-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--va-mist);
  transition: color .16s var(--va-ease);
}

.page-faq .faq-item__text {
  font-size: 15.5px;
  line-height: 1.66;
  font-weight: 500;
  color: var(--va-ink);
}

.page-faq .faq-item[open] .faq-item__idx,
.page-faq .faq-item__q:hover .faq-item__idx {
  color: var(--va-lava);
}

.page-faq .faq-item__icon {
  position: relative;
  width: 14px;
  height: 14px;
  align-self: center;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--va-mist);
  transition: transform .22s var(--va-ease), background-color .22s var(--va-ease);
}

.page-faq .faq-item__icon::after {
  transform: rotate(90deg);
}

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

.page-faq .faq-item[open] .faq-item__icon::before {
  background: var(--va-lava);
}

/* ---------- 答案 ---------- */
.page-faq .faq-item__a {
  margin: 0 0 22px;
  padding: 20px 22px 22px;
  background: var(--va-paper);
  color: var(--faq-ink-dark);
  border-radius: var(--va-radius);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--va-cut)), calc(100% - var(--va-cut)) 100%, 0 100%);
  animation: faqAnswer .3s var(--va-ease) both;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-ink-dark);
}

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

@keyframes faqAnswer {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 答案内步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 8px 0;
  border-top: 1px dashed rgba(20, 32, 58, .22);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--va-font-mono);
  font-size: 12px;
  color: var(--va-lava-deep);
}

/* ---------- 高频问题 ---------- */
.page-faq .faq-popular {
  padding-top: clamp(48px, 6vw, 84px);
}

.page-faq .faq-popular__title {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--va-mist);
}

.page-faq .faq-popular__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-popular__card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 18px 18px;
  background: var(--va-cabin);
  border: 1px solid var(--va-line);
  border-left: 2px solid var(--va-line);
  color: var(--va-ink);
  text-decoration: none;
  transition: border-color .18s var(--va-ease), transform .18s var(--va-ease);
}

.page-faq .faq-popular__card:hover,
.page-faq .faq-popular__card:focus-visible {
  border-color: var(--va-lava);
  border-left-color: var(--va-lava);
  transform: translateX(3px);
  outline: none;
}

.page-faq .faq-popular__num {
  font-family: var(--va-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--va-lava);
}

.page-faq .faq-popular__text {
  font-size: 14.5px;
  line-height: 1.6;
}

.page-faq .faq-popular__go {
  font-family: var(--va-font-mono);
  font-size: 14px;
  color: var(--va-cyan);
}

/* ---------- 底部联系 ---------- */
.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  margin-top: clamp(52px, 6.6vw, 92px);
  background: var(--va-cabin);
  border-top: 1px solid var(--va-line);
  border-bottom: 1px solid var(--va-line);
}

.page-faq .faq-contact__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}

.page-faq .faq-contact::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(96deg, rgba(7, 14, 34, .95) 0%, rgba(7, 14, 34, .80) 48%, rgba(7, 14, 34, .52) 100%);
}

.page-faq .faq-contact__inner {
  position: relative;
  z-index: 1;
  padding: clamp(42px, 5.6vw, 76px) 0;
}

.page-faq .faq-contact__title {
  margin: 14px 0 0;
  font-family: var(--va-font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--va-ink);
  max-width: 22em;
}

.page-faq .faq-contact__text {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--va-mist);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--va-line);
  border: 1px solid var(--va-line);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 15px 16px;
  background: rgba(14, 26, 56, .92);
}

.page-faq .faq-contact__key {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--va-mist);
}

.page-faq .faq-contact__val {
  font-family: var(--va-font-mono);
  font-size: 15px;
  color: var(--va-cyan);
  text-decoration: none;
  word-break: break-word;
}

a.page-faq .faq-contact__val:hover,
.page-faq .faq-contact__val:hover {
  color: var(--va-lava);
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--va-mist);
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-popular__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-popular__card {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 12px;
    padding: 20px 18px 22px;
  }

  .page-faq .faq-popular__go {
    justify-self: end;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

/* ---------- 桌面双栏 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 52px;
    align-items: end;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 56px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--va-header-h) + 28px);
    align-self: start;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 559px) {
  .page-faq .faq-item__q {
    grid-template-columns: 24px minmax(0, 1fr) 14px;
    gap: 10px;
  }

  .page-faq .faq-item__text {
    font-size: 15px;
  }

  .page-faq .faq-item__a {
    padding: 18px 16px 20px;
  }

  .page-faq .faq-hero__stat {
    padding: 13px 10px 15px;
  }

  .page-faq .faq-hero__stat dt {
    letter-spacing: .08em;
  }

  .page-faq .faq-contact__title {
    font-size: 24px;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-side__link,
  .page-faq .faq-popular__card {
    transition: none;
  }

  .page-faq .faq-popular__card:hover,
  .page-faq .faq-popular__card:focus-visible {
    transform: none;
  }
}

.page-faq {
  --va-rule: currentColor;
}