.page-faq {
  --faq-grid: rgba(0, 229, 255, 0.045);
  --faq-grid-bold: rgba(0, 229, 255, 0.1);
  --faq-card-bg: linear-gradient(145deg, rgba(15, 45, 92, 0.66), rgba(6, 18, 40, 0.86));
  --faq-card-border: rgba(0, 229, 255, 0.16);
  --faq-card-radius: 22px;
  --faq-card-shadow: 0 14px 38px rgba(2, 8, 20, 0.35);
  background:
    radial-gradient(ellipse 700px 460px at 90% -5%, rgba(0, 229, 255, 0.07), transparent 60%),
    var(--c-space);
  color: var(--c-star);
  overflow-x: clip;
}

/* ═══ 首屏 ═══ */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 44px;
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image:
    linear-gradient(var(--faq-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 95% 75% at 65% 20%, #000 25%, transparent 72%);
  mask-image: radial-gradient(ellipse 95% 75% at 65% 20%, #000 25%, transparent 72%);
}

.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: 100%;
  height: 140px;
  background: repeating-linear-gradient(-24deg, transparent 0 18px, var(--faq-grid-bold) 18px 19px, transparent 19px 46px);
  pointer-events: none;
  opacity: 0.35;
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 55%);
  mask-image: linear-gradient(90deg, #000, transparent 55%);
}

.page-faq .faq-hero > .site-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__layout {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-faq .faq-hero__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-dust);
}

.page-faq .faq-hero__title {
  font-family: var(--f-display);
  font-size: clamp(1.9rem, 7vw, 3.6rem);
  line-height: 0.97;
  margin: 0 0 16px;
  text-transform: uppercase;
}

.page-faq .faq-hero__title-sub {
  display: block;
  color: var(--c-cyan);
  font-size: clamp(1.5rem, 5.4vw, 2.2rem);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 58ch;
  color: var(--c-dust);
  font-size: 1rem;
  line-height: 1.75;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.page-faq .faq-hero__visual::before {
  content: '';
  position: absolute;
  width: min(84%, 280px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__img {
  position: relative;
  width: min(100%, 240px);
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 36px;
  border: 1px solid rgba(0, 229, 255, 0.24);
  box-shadow: 0 24px 64px rgba(2, 8, 20, 0.48);
}

/* ═══ 坐标索引条 ═══ */
.page-faq .faq-index {
  position: sticky;
  top: var(--hdr-h, 60px);
  z-index: 9;
  padding: 2px 0 4px;
  background: linear-gradient(180deg, rgba(10, 31, 68, 0.94), rgba(10, 31, 68, 0.8));
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(0, 229, 255, 0.1);
  border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}

.page-faq .faq-index__inner {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-faq .faq-index__label {
  display: none;
  margin: 0;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--c-dust);
  white-space: nowrap;
}

.page-faq .faq-index__pills {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 12px 0;
  scrollbar-width: none;
}

.page-faq .faq-index__pills::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: rgba(15, 45, 92, 0.55);
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--c-star);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-faq .faq-index__pill::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.16);
  transition: background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-faq .faq-index__pill:hover {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.5);
  color: var(--c-cyan);
  transform: translateY(-1px);
}

.page-faq .faq-index__pill:hover::before {
  background: var(--c-meteor);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18);
}

/* ═══ 分区基础 ═══ */
.page-faq .faq-section {
  position: relative;
  padding: 44px 0;
  scroll-margin-top: calc(var(--hdr-h) + 64px);
}

.page-faq .faq-section--alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(var(--faq-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.page-faq .faq-section--alt > .site-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-section__header {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.page-faq .faq-section__desc {
  margin: 0;
  color: var(--c-dust);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 48ch;
}

.page-faq .faq-section__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-section__body--single {
  max-width: 100%;
}

/* ═══ 折叠面板 ═══ */
.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-card-border);
  border-radius: var(--faq-card-radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 229, 255, 0.42);
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 52px 16px 18px;
  cursor: pointer;
  list-style: none;
  position: relative;
  user-select: none;
  transition: background var(--dur-fast) var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(0, 229, 255, 0.04);
}

.page-faq .faq-item summary::after {
  content: '＋';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-cyan);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1;
  transition: transform var(--dur-fast) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: '－';
}

.page-faq .faq-item__mark {
  flex-shrink: 0;
  min-width: 50px;
  padding: 4px 8px;
  border-radius: 9px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.28);
  color: var(--c-cyan);
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-align: center;
}

.page-faq .faq-item__q {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.45;
}

.page-faq .faq-item__a {
  padding: 2px 18px 18px 30px;
  color: var(--c-dust);
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
}

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

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

/* ═══ 数据版块 ═══ */
.page-faq .faq-data__layout {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-data__visual {
  border-radius: 24px;
  padding: 10px;
  border: 1px solid rgba(0, 229, 255, 0.16);
  background: var(--c-night);
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-data__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 16px;
}

.page-faq .faq-data__caption {
  margin: 10px 4px 4px;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-dust);
}

/* ═══ 服务卡 ═══ */
.page-faq .faq-service__layout {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-service__card {
  padding: 26px 24px;
  border-radius: var(--faq-card-radius);
  border: 1px solid rgba(255, 107, 53, 0.22);
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 107, 53, 0.13), transparent 180px),
    var(--c-night);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-service__badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: rgba(255, 107, 53, 0.14);
  border: 1px solid rgba(255, 107, 53, 0.4);
  color: var(--c-meteor);
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.page-faq .faq-service__list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-service__list > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 14px;
  border-radius: 14px;
  background: rgba(10, 31, 68, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.page-faq .faq-service__list dt {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-dust);
}

.page-faq .faq-service__list dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  word-break: break-all;
}

.page-faq .faq-service__list a {
  color: var(--c-star);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.page-faq .faq-service__list a:hover {
  color: var(--c-cyan);
}

/* ═══ 更多帮助 ═══ */
.page-faq .faq-more {
  padding: 44px 0 64px;
}

.page-faq .faq-more__grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-faq .faq-more__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 26px 24px;
  color: var(--c-star);
  text-decoration: none;
}

.page-faq .faq-more__card-index {
  flex-shrink: 0;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
  display: block;
  margin-bottom: 12px;
}

.page-faq .faq-more__card h3 {
  font-size: 1.18rem;
  margin: 0 0 8px;
}

.page-faq .faq-more__card p {
  margin: 0 0 18px;
  color: var(--c-dust);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq .faq-more__card .btn {
  margin-top: auto;
}

/* ═══ 桌面端 ═══ */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 56px 0 68px;
  }

  .page-faq .faq-hero__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
  }

  .page-faq .faq-hero__img {
    width: min(100%, 360px);
    border-radius: 44px;
  }

  .page-faq .faq-hero__visual::before {
    width: min(78%, 320px);
  }

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

  .page-faq .faq-index__pills {
    overflow: visible;
    flex-wrap: wrap;
    padding: 12px 0;
  }

  .page-faq .faq-section {
    padding: 68px 0;
  }

  .page-faq .faq-section--alt {
    padding: 68px 0;
  }

  .page-faq .faq-section__header {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: end;
    gap: 24px;
    margin-bottom: 34px;
  }

  .page-faq .faq-section__desc {
    margin: 0 0 2px;
  }

  .page-faq .faq-section__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .page-faq .faq-section__body--single {
    max-width: 720px;
  }

  .page-faq .faq-item__a {
    padding-left: 80px;
  }

  .page-faq .faq-data__layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
  }

  .page-faq .faq-data__visual {
    padding: 14px;
  }

  .page-faq .faq-service__layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 36px;
  }

  .page-faq .faq-more {
    padding: 68px 0 88px;
  }

  .page-faq .faq-more__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}