.page-faq {
  background: var(--color-deep-space);
  color: var(--color-ice-white);
}

/* ===== Hero 区域 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 72px 0 32px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 85% -10%, rgba(140, 229, 255, 0.12) 0%, transparent 50%),
    var(--color-deep-space);
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 12px,
    rgba(140, 229, 255, 0.06) 12px,
    rgba(140, 229, 255, 0.06) 13px
  );
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-neon-green);
  text-transform: uppercase;
}

.page-faq .faq-hero__kicker::before {
  content: '';
  width: 22px;
  height: 4px;
  background: var(--color-neon-green);
  transform: skewX(-45deg);
}

.page-faq .faq-hero__title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-ice-white);
}

.page-faq .faq-hero__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(234, 246, 255, 0.75);
  max-width: 560px;
}

.page-faq .faq-hero__index {
  margin-top: 24px;
}

.page-faq .faq-hero__index-label {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  font-family: var(--font-data);
  letter-spacing: 0.14em;
  color: var(--color-glacier-cyan);
}

.page-faq .faq-hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.page-faq .faq-hero__index-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(11, 30, 63, 0.8);
  border-left: 2px solid var(--color-neon-green);
  color: var(--color-ice-white);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: background 0.3s ease;
}

.page-faq .faq-hero__index-link:hover {
  background: rgba(11, 30, 63, 1);
}

.page-faq .faq-hero__index-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-neon-green);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero__figure::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  background: var(--color-neon-green);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  z-index: 1;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(140, 229, 255, 0.25);
  filter: drop-shadow(0 16px 32px rgba(0, 0, 0, 0.3));
}

/* ===== 面包屑作用域覆盖 ===== */
.page-faq .breadcrumb {
  margin-bottom: 32px;
  padding-left: 0;
}

.page-faq .breadcrumb__link {
  color: rgba(234, 246, 255, 0.6);
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover {
  color: var(--color-ice-white);
}

.page-faq .breadcrumb__link[aria-current="page"] {
  color: var(--color-neon-green);
}

/* ===== 主内容网格 ===== */
.page-faq .faq-body-grid {
  padding-top: 16px;
  padding-bottom: 56px;
}

/* ===== FAQ Section 标题 ===== */
.page-faq .faq-section {
  margin-top: 48px;
  scroll-margin-top: 88px;
}

.page-faq .content-grid__main > .faq-section:first-child {
  margin-top: 0;
}

.page-faq .faq-section__header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(140, 229, 255, 0.22);
}

.page-faq .faq-section__num {
  font-family: var(--font-data);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-neon-green);
  letter-spacing: -2px;
}

.page-faq .faq-section__title {
  margin: 0 0 4px;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-ice-white);
  line-height: 1.2;
}

.page-faq .faq-section__desc {
  margin: 0;
  font-size: 13px;
  color: rgba(234, 246, 255, 0.6);
}

/* ===== FAQ 折叠面板 ===== */
.page-faq .faq-panels {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-panel {
  position: relative;
  background: var(--color-night-flight);
  border-left: 3px solid rgba(140, 229, 255, 0.4);
  transition: border-color 0.3s ease;
}

.page-faq .faq-panel[open] {
  border-left-color: var(--color-neon-green);
}

.page-faq .faq-panel__summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.3s ease;
}

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

.page-faq .faq-panel__summary:hover {
  background: rgba(11, 30, 63, 0.5);
}

.page-faq .faq-panel__summary::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: linear-gradient(135deg, transparent 50%, rgba(140, 229, 255, 0.2) 50%);
}

.page-faq .faq-panel__icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-deep-space);
  background: var(--color-neon-green);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26% 100%, 0 74%);
  transition: background 0.3s ease;
}

.page-faq .faq-panel[open] .faq-panel__icon {
  background: var(--color-glacier-cyan);
}

.page-faq .faq-panel__question {
  flex: 1;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-ice-white);
}

.page-faq .faq-panel__indicator {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-right: 2px solid var(--color-glacier-cyan);
  border-bottom: 2px solid var(--color-glacier-cyan);
  transform: rotate(45deg);
  margin-top: -4px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-panel[open] .faq-panel__indicator {
  transform: rotate(225deg);
  margin-top: 4px;
  border-color: var(--color-neon-green);
}

.page-faq .faq-panel__body {
  padding: 16px 18px 20px 60px;
  background: var(--color-ice-white);
  color: var(--color-deep-space);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-panel[open] .faq-panel__body {
  animation: faq-body-in 0.3s var(--transition);
}

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

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

@keyframes faq-body-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 平板同步示意图 ===== */
.page-faq .faq-sync-figure {
  position: relative;
  margin: 0 0 16px;
}

.page-faq .faq-sync-figure::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 48px;
  background: var(--color-glacier-cyan);
  clip-path: polygon(0 100%, 0 0, 100% 100%);
  z-index: 1;
}

.page-faq .faq-sync-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(140, 229, 255, 0.2);
  filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.35));
}

/* ===== 侧栏 ===== */
.page-faq .faq-aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 48px;
}

.page-faq .faq-aside__card {
  padding: 18px 16px;
  background: var(--color-night-flight);
  border-left: 3px solid var(--color-neon-green);
}

.page-faq .faq-aside__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 800;
  color: var(--color-ice-white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-aside__title::before {
  content: '';
  width: 16px;
  height: 4px;
  background: var(--color-neon-green);
  transform: skewX(-45deg);
  flex-shrink: 0;
}

.page-faq .faq-aside__text {
  margin: 0 0 10px;
  font-size: 13px;
  color: rgba(234, 246, 255, 0.6);
  line-height: 1.6;
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-aside__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(140, 229, 255, 0.12);
  font-size: 13px;
}

.page-faq .faq-aside__list li:last-child {
  border-bottom: none;
}

.page-faq .faq-aside__label {
  color: rgba(234, 246, 255, 0.5);
  flex-shrink: 0;
}

.page-faq .faq-aside__value {
  font-family: var(--font-data);
  color: var(--color-ice-white);
  text-align: right;
  word-break: break-all;
}

.page-faq .faq-aside__note {
  margin: 10px 0 0;
  font-size: 12px;
  color: rgba(234, 246, 255, 0.45);
  line-height: 1.6;
}

.page-faq .faq-aside__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-aside__links li {
  margin-bottom: 2px;
}

.page-faq .faq-aside__links a {
  display: block;
  padding: 8px 4px;
  color: rgba(234, 246, 255, 0.8);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid rgba(140, 229, 255, 0.1);
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.page-faq .faq-aside__links a:hover {
  color: var(--color-neon-green);
  padding-left: 10px;
}

.page-faq .faq-aside__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.page-faq .faq-aside__stats li {
  text-align: center;
  padding: 8px 4px;
  background: rgba(140, 229, 255, 0.06);
}

.page-faq .faq-aside__stat-num {
  display: block;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 17px;
  color: var(--color-neon-green);
  line-height: 1.2;
}

.page-faq .faq-aside__stat-label {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: rgba(234, 246, 255, 0.5);
  line-height: 1.4;
}

/* ===== 媒体查询 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 88px 0 48px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
  }

  .page-faq .faq-hero__title {
    font-size: 34px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16px;
  }

  .page-faq .faq-aside {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-section {
    margin-top: 56px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 104px 0 56px;
  }

  .page-faq .faq-hero__title {
    font-size: 38px;
  }

  .page-faq .faq-hero__index-list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-section__num {
    font-size: 40px;
  }

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

  .page-faq .faq-section__desc {
    font-size: 14px;
  }

  .page-faq .faq-aside {
    grid-template-columns: 1fr;
    margin-top: 0;
  }
}