.page-faq {
  --faq-line: rgba(255, 255, 255, 0.09);
  --faq-gold-soft: rgba(255, 215, 0, 0.08);
  --faq-gold-line: rgba(255, 215, 0, 0.28);
  background: var(--color-bg);
}

/* ===== Hero 首屏 ===== */
.page-faq__hero {
  position: relative;
  padding: 72px 20px 0;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    radial-gradient(320px 200px at 85% 8%, rgba(74, 63, 138, 0.35), transparent 70%),
    linear-gradient(130deg, #0A0E27 0%, #131A3F 100%);
  background-size: 32px 32px, cover, cover;
  border-bottom: 1px solid rgba(255, 215, 0, 0.18);
}
.page-faq__hero::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 32px;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 215, 0, 0.6) 50%, transparent 100%);
}
.page-faq__hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}
.page-faq__hero-grid {
  display: grid;
  gap: 28px;
  align-items: start;
  margin-top: 24px;
}
.page-faq__hero-copy {
  min-width: 0;
}
.page-faq__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-white);
  margin: 14px 0 20px;
}
.page-faq__title-accent {
  color: var(--color-gold);
}
.page-faq__lead {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--color-text-muted);
  max-width: 660px;
  margin: 0 0 24px;
}
.page-faq__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq__stat {
  min-width: 104px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}
.page-faq__stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1.1;
  margin-bottom: 2px;
}
.page-faq__hero-aside {
  display: none;
}
.page-faq__hero-badge {
  padding: 22px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--faq-gold-line);
  border-radius: var(--radius-lg);
  display: grid;
  gap: 10px;
}
.page-faq__hero-version {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--color-gold);
}
.page-faq__hero-badge-title {
  font-weight: 700;
  color: var(--color-white);
  font-size: 1.05rem;
}
.page-faq__hero-badge-text {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  line-height: 1.65;
  margin: 0;
}

/* ===== 快速定位胶囊 ===== */
.page-faq__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.page-faq__tab {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--faq-gold-line);
  background: var(--faq-gold-soft);
  color: var(--color-gold);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.3s ease, transform 0.3s ease, color 0.3s ease;
}
.page-faq__tab:hover {
  background: rgba(255, 215, 0, 0.16);
  color: var(--color-gold-dark);
  transform: translateY(-2px);
}

/* ===== 主体布局 ===== */
.page-faq__layout {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 40px 20px 72px;
}

/* ===== 左侧索引 ===== */
.page-faq__index {
  display: none;
}
.page-faq__index-inner {
  background: linear-gradient(160deg, #131A3F, #0A0E27);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.page-faq__index-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 18px;
}
.page-faq__index-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.6);
}
.page-faq__index-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq__index-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.3s ease, color 0.3s ease;
}
.page-faq__index-link:hover {
  background: var(--faq-gold-soft);
  color: var(--color-gold);
}
.page-faq__index-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-gold);
  min-width: 24px;
}
.page-faq__index-name {
  font-size: 0.92rem;
  font-weight: 600;
}
.page-faq__index-card {
  background: var(--faq-gold-soft);
  border: 1px solid var(--faq-gold-line);
  border-radius: var(--radius-md);
  padding: 18px;
}
.page-faq__index-card-title {
  display: block;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 6px;
  font-size: 0.95rem;
}
.page-faq__index-card-text {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}
.page-faq__index-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== 内容区 ===== */
.page-faq__content {
  flex: 1;
  min-width: 0;
}

/* ===== 分类区块 ===== */
.page-faq__cat {
  scroll-margin-top: 90px;
  margin-bottom: 32px;
  padding: 24px 20px;
  background: linear-gradient(145deg, rgba(19, 26, 63, 0.72), rgba(13, 13, 26, 0.92));
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s ease;
}
.page-faq__cat:hover {
  border-color: rgba(255, 215, 0, 0.2);
}
.page-faq__cat-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}
.page-faq__cat-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-gold);
  border: 1px solid var(--faq-gold-line);
  background: var(--faq-gold-soft);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  white-space: nowrap;
}
.page-faq__cat-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.55rem;
  line-height: 1.2;
  color: var(--color-white);
  margin: 0 0 4px;
}
.page-faq__cat-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== 图文组合 ===== */
.page-faq__cat-grid {
  display: grid;
  gap: 20px;
}
.page-faq__cat-media {
  margin: 0;
}
.page-faq__image-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: linear-gradient(135deg, #131A3F, #4A3F8A);
  box-shadow: 0 18px 44px -24px rgba(0, 0, 0, 0.7);
}
.page-faq__image-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq__cat-media figcaption {
  margin-top: 8px;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

/* ===== 手风琴 ===== */
.page-faq .faq-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.page-faq .faq-item[open] {
  border-color: var(--faq-gold-line);
  background: rgba(255, 255, 255, 0.04);
}
.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-white);
  transition: background 0.3s ease, color 0.3s ease;
}
.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__q:hover {
  background: rgba(255, 255, 255, 0.02);
}
.page-faq .faq-item[open] .faq-item__q {
  color: var(--color-gold);
}
.page-faq .faq-item__q::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--color-gold);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid var(--faq-gold-line);
  border-radius: 50%;
  transition: transform 0.3s var(--ease-out), background 0.3s ease;
}
.page-faq .faq-item[open] .faq-item__q::before {
  transform: rotate(45deg);
  background: var(--faq-gold-soft);
}
.page-faq .faq-item__a-inner {
  padding: 4px 16px 16px 50px;
}
.page-faq .faq-item[open] .faq-item__a-inner {
  animation: pageFaqReveal 0.35s var(--ease-out);
}
.page-faq .faq-item__a p {
  margin: 0 0 8px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--color-text);
}
.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

/* ===== 底部联系卡 ===== */
.page-faq__footer-card {
  margin-top: 12px;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(260px 120px at 90% 20%, rgba(255, 215, 0, 0.1), transparent 70%),
    linear-gradient(135deg, #131A3F, #4A3F8A);
  border: 1px solid var(--faq-gold-line);
}
.page-faq__footer-card-inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}
.page-faq__footer-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-white);
  margin: 0 0 6px;
}
.page-faq__footer-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}
.page-faq__footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端增强 ===== */
@media (min-width: 720px) {
  .page-faq__cat {
    padding: 30px;
    margin-bottom: 40px;
  }
  .page-faq__cat-grid {
    grid-template-columns: 280px 1fr;
    align-items: center;
  }
  .page-faq__cat-grid--reverse .page-faq__cat-media {
    order: 2;
  }
  .page-faq__footer-card-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
@media (min-width: 820px) {
  .page-faq__hero-grid {
    grid-template-columns: 1fr 280px;
    gap: 40px;
  }
  .page-faq__hero-aside {
    display: block;
  }
}
@media (min-width: 900px) {
  .page-faq__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 40px;
  }
  .page-faq__index {
    display: block;
    width: 264px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
  }
}
@keyframes pageFaqReveal {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}