/* ===== page-faq 专属样式 ===== */
.page-faq {
  --faq-gold: #FFD700;
  --faq-neon: #00FFFF;
  --faq-card-bg: rgba(26, 26, 46, 0.85);
  --faq-border-color: rgba(45, 45, 68, 0.7);
  --faq-glow-gold: 0 0 12px rgba(255, 215, 0, 0.08);
  --faq-glow-neon: 0 0 14px rgba(0, 255, 255, 0.06);
  --faq-radius: 12px;
  --faq-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  background-color: var(--color-dark-bg, #0D0D0D);
  color: var(--color-text-primary, #FFFFFF);
  font-family: var(--font-body, 'Inter', sans-serif);
  line-height: var(--lh-body, 1.7);
  min-height: 100vh;
}

/* ===== Hero 区 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 3rem 1rem 2.5rem;
  margin-top: calc(var(--header-height, 64px) * -1);
  padding-top: calc(var(--header-height, 64px) + 2rem);
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.35) 0%, rgba(13, 13, 13, 0.9) 70%);
}

.page-faq .faq-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.page-faq .faq-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  opacity: 0.15;
}

.page-faq .faq-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 13, 13, 0.85) 0%, rgba(13, 13, 13, 0.4) 50%, rgba(106, 13, 173, 0.2) 100%);
  z-index: 1;
}

.page-faq .container {
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: 0 1rem;
  position: relative;
  z-index: 2;
}

.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary, #B0B0B0);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.page-faq .faq-breadcrumb a {
  color: var(--color-text-secondary, #B0B0B0);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-faq .faq-breadcrumb a:hover,
.page-faq .faq-breadcrumb a:focus-visible {
  color: var(--faq-gold);
  outline: none;
}

.page-faq .breadcrumb-icon {
  flex-shrink: 0;
  color: var(--faq-neon);
  opacity: 0.7;
  width: 14px;
  height: 14px;
}

.page-faq .faq-breadcrumb span[aria-current="page"] {
  color: var(--faq-gold);
  font-weight: 500;
}

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

.page-faq .faq-hero-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: var(--lh-heading, 1.1);
  letter-spacing: var(--ls-heading, -0.02em);
  color: var(--faq-gold);
  margin: 0 0 0.75rem;
  text-shadow: 0 2px 20px rgba(255, 215, 0, 0.12);
}

.page-faq .faq-hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-secondary, #B0B0B0);
  max-width: 640px;
  margin: 0;
  line-height: 1.6;
}

/* ===== 内容区布局 ===== */
.page-faq .faq-content {
  padding: 2.5rem 0 4rem;
}

.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.page-faq .faq-main {
  flex: 1;
  min-width: 0;
}

/* ===== 分类卡片 ===== */
.page-faq .faq-category {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-border-color);
  border-radius: var(--faq-radius);
  padding: 1.5rem 1.25rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-card, 0 4px 20px rgba(0,0,0,0.4));
  transition: border-color var(--transition-base, 0.35s ease), box-shadow var(--transition-base, 0.35s ease);
}

.page-faq .faq-category:hover {
  border-color: rgba(255, 215, 0, 0.25);
  box-shadow: var(--faq-glow-gold), var(--shadow-card, 0 4px 20px rgba(0,0,0,0.4));
}

.page-faq .faq-category-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  color: var(--faq-gold);
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 215, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  letter-spacing: var(--ls-heading, -0.02em);
}

.page-faq .faq-category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--faq-neon);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
}

.page-faq .faq-category-icon svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 4px rgba(0, 255, 255, 0.2));
}

/* ===== 折叠项 ===== */
.page-faq .faq-item {
  display: block;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(13, 13, 13, 0.3);
  border: 1px solid transparent;
  transition: border-color var(--transition-base, 0.35s ease), background var(--transition-base, 0.35s ease);
}

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

.page-faq .faq-item:hover {
  border-color: rgba(0, 255, 255, 0.1);
  background: rgba(13, 13, 13, 0.45);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 215, 0, 0.15);
  background: rgba(13, 13, 13, 0.5);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--faq-gold);
  transition: color var(--transition-fast, 0.2s ease), background var(--transition-fast, 0.2s ease);
  border-radius: 8px;
  line-height: 1.4;
}

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

.page-faq .faq-question::marker {
  display: none;
  content: "";
}

.page-faq .faq-question:hover,
.page-faq .faq-question:focus-visible {
  background: rgba(255, 215, 0, 0.04);
  outline: none;
}

.page-faq .faq-q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--faq-neon);
  opacity: 0.8;
  transition: opacity var(--transition-fast, 0.2s ease), transform var(--transition-fast, 0.2s ease);
}

.page-faq .faq-q-icon svg {
  width: 100%;
  height: 100%;
}

.page-faq .faq-item[open] .faq-q-icon {
  opacity: 1;
  transform: scale(1.05);
}

.page-faq .faq-q-text {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--faq-gold);
  opacity: 0.6;
  transition: transform var(--faq-transition), opacity var(--transition-fast, 0.2s ease);
}

.page-faq .faq-toggle-icon svg {
  width: 100%;
  height: 100%;
}

.page-faq .faq-item[open] .faq-toggle-icon {
  transform: rotate(180deg);
  opacity: 0.9;
  color: var(--faq-neon);
}

/* ===== 答案区 ===== */
.page-faq .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--faq-transition), opacity var(--faq-transition), padding var(--faq-transition);
  opacity: 0;
  padding: 0 1.1rem;
  background: rgba(0, 0, 0, 0.2);
  border-top: 0 solid rgba(255, 215, 0, 0.05);
}

.page-faq .faq-item[open] .faq-answer {
  max-height: 500px;
  opacity: 1;
  padding: 1rem 1.1rem 1.2rem;
  border-top-width: 1px;
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary, #B0B0B0);
  line-height: 1.7;
}

.page-faq .faq-answer a {
  color: var(--faq-neon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast, 0.2s ease), border-color var(--transition-fast, 0.2s ease);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  color: var(--faq-gold);
  border-bottom-color: var(--faq-gold);
  outline: none;
}

/* ===== 底部CTA ===== */
.page-faq .faq-cta {
  margin-top: 2rem;
  padding: 1.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(106, 13, 173, 0.2) 0%, rgba(13, 13, 13, 0.6) 100%);
  border: 1px solid rgba(255, 215, 0, 0.12);
  border-radius: var(--faq-radius);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-faq .faq-cta-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary, #B0B0B0);
  margin: 0;
  font-weight: 400;
}

.page-faq .faq-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--faq-gold) 0%, #e6c200 100%);
  color: #0D0D0D;
  text-decoration: none;
  transition: box-shadow var(--transition-fast, 0.2s ease), transform var(--transition-fast, 0.2s ease);
  box-shadow: 0 0 0 rgba(255, 215, 0, 0);
}

.page-faq .faq-cta-btn:hover,
.page-faq .faq-cta-btn:focus-visible {
  box-shadow: 0 0 24px rgba(255, 215, 0, 0.25);
  transform: translateY(-1px);
  outline: none;
}

/* ===== 侧边装饰 ===== */
.page-faq .faq-aside {
  display: none;
  flex-shrink: 0;
  width: 100%;
}

.page-faq .faq-aside-sticky {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-aside-img {
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  border-radius: var(--faq-radius);
  opacity: 0.3;
  border: 1px solid var(--faq-border-color);
  transition: opacity var(--transition-base, 0.35s ease), border-color var(--transition-base, 0.35s ease);
}

.page-faq .faq-aside-img:hover {
  opacity: 0.45;
  border-color: rgba(0, 255, 255, 0.15);
}

.page-faq .faq-aside-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: rgba(26, 26, 46, 0.6);
  border-radius: 6px;
  border: 1px solid var(--faq-border-color);
  align-self: flex-start;
}

.page-faq .faq-aside-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faq-neon);
  box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
  animation: faq-pulse-dot 2s ease-in-out infinite;
}

@keyframes faq-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

.page-faq .faq-aside-label {
  font-size: 0.78rem;
  color: var(--color-text-secondary, #B0B0B0);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ===== 桌面端 (≥768px) ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 4rem 2rem 3rem;
    padding-top: calc(var(--header-height, 64px) + 2.5rem);
  }

  .page-faq .container {
    padding: 0 2rem;
  }

  .page-faq .faq-content {
    padding: 3rem 0 5rem;
  }

  .page-faq .faq-category {
    padding: 1.75rem 1.75rem;
    margin-bottom: 2rem;
  }

  .page-faq .faq-question {
    padding: 1.1rem 1.3rem;
    font-size: 1rem;
  }

  .page-faq .faq-item[open] .faq-answer {
    padding: 1.1rem 1.3rem 1.3rem;
  }

  .page-faq .faq-answer p {
    font-size: 0.95rem;
  }

  .page-faq .faq-cta {
    flex-direction: row;
    justify-content: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
  }

  .page-faq .faq-cta-text {
    font-size: 1.15rem;
  }
}

/* ===== 桌面端 (≥1024px) 侧边栏出现 ===== */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    flex-direction: row;
    gap: 3rem;
  }

  .page-faq .faq-main {
    flex: 1;
    max-width: 780px;
  }

  .page-faq .faq-aside {
    display: block;
    width: 260px;
    flex-shrink: 0;
  }

  .page-faq .faq-aside-sticky {
    position: sticky;
    top: calc(var(--header-height, 64px) + 1.5rem);
  }

  .page-faq .faq-aside-img {
    max-height: 400px;
    width: 100%;
    height: auto;
  }
}

/* ===== 桌面端 (≥1280px) ===== */
@media (min-width: 1280px) {
  .page-faq .faq-hero {
    padding: 5rem 0 3.5rem;
    padding-top: calc(var(--header-height, 64px) + 3rem);
  }

  .page-faq .container {
    padding: 0;
  }

  .page-faq .faq-content {
    padding: 4rem 0 6rem;
  }

  .page-faq .faq-main {
    max-width: 820px;
  }

  .page-faq .faq-aside {
    width: 300px;
  }

  .page-faq .faq-aside-img {
    max-height: 480px;
  }
}

/* ===== 减少动效偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-faq,
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}