.page-faq {
  --faq-bg-alt: #141414;
  --faq-border: #2a2a2a;
  --faq-gold-soft: rgba(255, 215, 0, 0.08);
  --faq-accent-gold: #FFD700;
  --faq-transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  display: block;
  padding: 2rem 0 4rem;
  background-color: var(--ml-bg-dark, #0D0D0D);
  color: var(--ml-text-primary, #FFFFFF);
  min-height: 60vh;
}

/* 容器继承 ml-container 但复用padding */
.page-faq__inner {
  padding: 0 1.5rem;
  max-width: var(--ml-max-width, 1200px);
  margin: 0 auto;
}

/* 面包屑 */
.page-faq__breadcrumb {
  color: var(--ml-text-secondary, #B0B0B0);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}
.page-faq__breadcrumb a {
  color: var(--ml-text-secondary, #B0B0B0);
  text-decoration: none;
  transition: color var(--faq-transition);
}
.page-faq__breadcrumb a:hover {
  color: var(--faq-accent-gold);
}

/* 英雄区 */
.page-faq__hero {
  margin-bottom: 2.5rem;
  border-left: 4px solid var(--faq-accent-gold);
  padding-left: 1rem;
}
.page-faq__title {
  font-family: var(--ml-font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  font-weight: 800;
  font-style: italic;
  font-size: 2rem;
  line-height: 1.15;
  color: var(--ml-text-primary, #FFFFFF);
  margin: 0 0 0.25rem;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}
.page-faq__subtitle {
  font-size: 0.875rem;
  color: var(--ml-text-secondary, #B0B0B0);
  letter-spacing: 0.06em;
  margin: 0;
}

/* 标签切换 */
.page-faq__tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--faq-border);
  padding-bottom: 0.5rem;
}
.page-faq__tab {
  background: transparent;
  border: none;
  color: var(--ml-text-secondary, #B0B0B0);
  font-family: var(--ml-font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--ml-radius-md, 16px);
  cursor: pointer;
  transition: all var(--faq-transition);
  position: relative;
  outline: none;
}
.page-faq__tab:hover {
  background: var(--faq-gold-soft);
  color: var(--faq-accent-gold);
}
.page-faq__tab:focus-visible {
  outline: 2px solid var(--faq-accent-gold);
  outline-offset: 2px;
}
.page-faq__tab--active {
  background: linear-gradient(135deg, #D7001D, #1A1A1A);
  color: var(--ml-text-primary, #FFFFFF);
  box-shadow: 0 4px 12px rgba(215, 0, 29, 0.3);
}

/* 面板 */
.page-faq__panel {
  display: none;
  animation: faqFadeIn 0.4s ease forwards;
}
.page-faq__panel--active {
  display: block;
}
.page-faq__panel[hidden] {
  display: none;
}
@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq__panel-header {
  margin-bottom: 1.5rem;
}
.page-faq__panel-title {
  font-family: var(--ml-font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--faq-accent-gold);
  margin: 0 0 0.25rem;
  letter-spacing: 0.03em;
  display: inline-block;
  position: relative;
}
.page-faq__panel-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  background: var(--ml-gold-gradient, linear-gradient(135deg, #FFD700, #FFA500));
  margin-top: 4px;
  border-radius: 2px;
}
.page-faq__panel-desc {
  font-size: 0.8rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 0.25rem 0 0;
}

/* 视觉图片区 */
.page-faq__visual {
  margin-bottom: 1.75rem;
  border-radius: var(--ml-radius-lg, 24px);
  overflow: hidden;
  background: var(--faq-bg-alt);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 120px;
  border: 1px solid var(--faq-border);
}
.page-faq__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: inherit;
}
.page-faq__img--subscription {
  aspect-ratio: 3 / 2;
}
.page-faq__img--query {
  aspect-ratio: 4 / 3;
}

/* Q&A 列表 */
.page-faq__qa-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-faq__qa-item {
  background: var(--ml-surface-dark, #1E1E1E);
  border-radius: var(--ml-radius-md, 16px);
  border: 1px solid var(--faq-border);
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.page-faq__qa-item[open] {
  border-color: var(--faq-accent-gold);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.06);
}
.page-faq__question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--ml-text-primary, #FFFFFF);
  user-select: none;
  transition: background var(--faq-transition);
}
.page-faq__question::-webkit-details-marker {
  display: none;
}
.page-faq__question:hover {
  background: var(--faq-gold-soft);
}
.page-faq__q-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #D7001D, #1A1A1A);
  color: var(--faq-accent-gold);
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}
.page-faq__q-text {
  flex: 1;
  line-height: 1.4;
}
.page-faq__q-icon {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--ml-text-secondary, #B0B0B0);
  transition: transform var(--faq-transition);
  line-height: 1;
}
.page-faq__qa-item[open] .page-faq__q-icon {
  transform: rotate(45deg);
  color: var(--faq-accent-gold);
}

/* 答案内容 */
.page-faq__answer {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--faq-border);
  padding-top: 0.875rem;
  margin-top: -0.25rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--ml-text-secondary, #B0B0B0);
}
.page-faq__answer p {
  margin: 0 0 0.5rem;
}
.page-faq__answer p:last-child {
  margin-bottom: 0;
}
.page-faq__link {
  color: var(--faq-accent-gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity var(--faq-transition);
}
.page-faq__link:hover {
  opacity: 0.7;
}

/* 底部联系 */
.page-faq__contact-note {
  margin-top: 3rem;
  padding: 1.5rem;
  background: var(--faq-bg-alt);
  border-radius: var(--ml-radius-lg, 24px);
  text-align: center;
  border: 1px solid var(--faq-border);
}
.page-faq__contact-note .ml-note {
  font-size: 0.85rem;
  color: var(--ml-text-secondary, #B0B0B0);
}

/* 移动端优先，桌面增强 */
@media (min-width: 768px) {
  .page-faq {
    padding: 3rem 0 5rem;
  }
  .page-faq__inner {
    padding: 0 2rem;
  }
  .page-faq__hero {
    margin-bottom: 3rem;
    padding-left: 1.5rem;
  }
  .page-faq__title {
    font-size: 3rem;
  }
  .page-faq__subtitle {
    font-size: 1rem;
  }
  .page-faq__tabs {
    gap: 0.75rem;
    padding-bottom: 0.75rem;
  }
  .page-faq__tab {
    font-size: 1rem;
    padding: 0.7rem 1.5rem;
  }
  .page-faq__panel-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
  }
  .page-faq__panel-title {
    font-size: 1.5rem;
  }
  .page-faq__panel-desc {
    font-size: 0.85rem;
  }
  .page-faq__visual {
    margin-bottom: 2rem;
    min-height: 160px;
  }
  .page-faq__qa-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .page-faq__question {
    padding: 1.1rem 1.5rem;
    font-size: 1rem;
  }
  .page-faq__answer {
    padding: 0 1.5rem 1.5rem;
    padding-top: 0.875rem;
    font-size: 0.9rem;
  }
  .page-faq__contact-note {
    margin-top: 4rem;
    padding: 2rem;
  }
}

@media (min-width: 1024px) {
  .page-faq__inner {
    padding: 0 3rem;
  }
  .page-faq__qa-list {
    grid-template-columns: 1fr 1fr;
  }
}