/* ===== FAQ 页面专属样式 ===== */
.page-faq {
  --faq-hero-bg-start: #0B1A33;
  --faq-hero-bg-end: #14203A;
  --faq-card-bg: #1A2A44;
  --faq-card-open-start: #1A2A44;
  --faq-card-open-end: #2E4A6E;
  --faq-icon-bg: #FF4B2B;
  --faq-icon-color: #FFFFFF;
  --faq-arrow-color: #FF4B2B;
  --faq-search-border: #FF4B2B;
  --faq-search-bg: #14203A;
  --faq-cta-bg: #0B1A33;
  --faq-section-gap: 2.5rem;
  --faq-item-radius: 16px;
}

/* 容器复用全局 container，这里仅做微调 */
.page-faq .container {
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 1rem 1.25rem 2.5rem;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--clr-text-secondary, #B0C4DE);
  margin-bottom: 1.25rem;
  padding-top: 0.75rem;
  flex-wrap: wrap;
}
.page-faq .breadcrumb a {
  color: var(--clr-text-secondary, #B0C4DE);
  text-decoration: none;
  transition: color var(--transition-base, 0.3s ease);
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--clr-accent-orange-red, #FF4B2B);
  outline: none;
}
.page-faq .breadcrumb__sep {
  color: var(--clr-border-subtle, #2E4A6E);
  user-select: none;
}
.page-faq .breadcrumb__current {
  color: var(--clr-text-primary, #FFFFFF);
  font-weight: 600;
}

/* 屏幕阅读器专用 */
.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== Hero 区域 ===== */
.page-faq .faq-hero {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: linear-gradient(135deg, var(--faq-hero-bg-start), var(--faq-hero-bg-end));
  border-radius: var(--radius-lg, 16px);
  padding: 1.5rem 1.5rem 0;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 50%;
  height: 200%;
  background: rgba(255,75,43,0.06);
  transform: rotate(15deg);
  pointer-events: none;
  border-radius: 40%;
}
.page-faq .faq-hero__content {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero__title {
  font-family: var(--font-heading, 'Source Han Sans CN Bold', sans-serif);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  color: var(--clr-text-primary, #FFFFFF);
  margin: 0 0 0.5rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.page-faq .faq-hero__title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 1.2em;
  background: var(--clr-accent-orange-red, #FF4B2B);
  margin-right: 0.5rem;
  vertical-align: middle;
  border-radius: 3px;
}
.page-faq .faq-hero__desc {
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-size: 1rem;
  color: var(--clr-text-secondary, #B0C4DE);
  margin: 0;
  line-height: 1.6;
  max-width: 32em;
}
.page-faq .faq-hero__image-wrap {
  position: relative;
  z-index: 1;
  margin: 0 -1.5rem 0;
  border-radius: var(--radius-lg, 16px) var(--radius-lg, 16px) 0 0;
  overflow: hidden;
  line-height: 0;
}
.page-faq .faq-hero__image {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  display: block;
}

/* ===== 搜索框 ===== */
.page-faq .faq-search {
  position: relative;
  margin-bottom: 2.2rem;
  max-width: 36rem;
}
.page-faq .faq-search__input {
  width: 100%;
  padding: 0.85rem 1.25rem 0.85rem 3rem;
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-size: 1rem;
  color: var(--clr-text-primary, #FFFFFF);
  background: var(--faq-search-bg);
  border: 2px solid var(--clr-border-subtle, #2E4A6E);
  border-radius: var(--radius-pill, 9999px);
  outline: none;
  transition: border-color var(--transition-base, 0.3s ease), box-shadow var(--transition-base, 0.3s ease);
  box-sizing: border-box;
}
.page-faq .faq-search__input::placeholder {
  color: var(--clr-text-secondary, #B0C4DE);
  opacity: 0.7;
}
.page-faq .faq-search__input:focus {
  border-color: var(--faq-search-border);
  box-shadow: 0 0 0 3px rgba(255,75,43,0.2);
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.15rem;
  pointer-events: none;
  opacity: 0.6;
}

/* ===== 分类区域 ===== */
.page-faq .faq-categories {
  display: flex;
  flex-direction: column;
  gap: var(--faq-section-gap);
  margin-bottom: 2.5rem;
}

.page-faq .faq-section {
  scroll-margin-top: 2rem;
}
.page-faq .section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading, 'Source Han Sans CN Bold', sans-serif);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  color: var(--clr-text-primary, #FFFFFF);
  margin: 0 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--clr-border-subtle, #2E4A6E);
  position: relative;
}
.page-faq .section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 4rem;
  height: 2px;
  background: var(--clr-accent-orange-red, #FF4B2B);
}
.page-faq .section-title__num {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.75em;
  color: var(--clr-accent-gold, #F5A623);
  opacity: 0.7;
  letter-spacing: 0.05em;
}

/* ===== 手风琴项目 ===== */
.page-faq .faq-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.page-faq .faq-item {
  background: var(--faq-card-bg);
  border-radius: var(--faq-item-radius);
  border: 1px solid var(--clr-border-subtle, #2E4A6E);
  transition: border-color var(--transition-base, 0.3s ease), background var(--transition-base, 0.3s ease);
  overflow: hidden;
}
.page-faq .faq-item[open] {
  border-color: var(--clr-accent-orange-red, #FF4B2B);
  background: linear-gradient(145deg, var(--faq-card-open-start), var(--faq-card-open-end));
}
.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition-base, 0.3s ease);
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary:hover {
  background: rgba(255,75,43,0.05);
}
.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--clr-accent-orange-red, #FF4B2B);
  outline-offset: -2px;
  border-radius: var(--faq-item-radius);
}
.page-faq .faq-item__icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-weight: 700;
  font-size: 1rem;
  color: var(--faq-icon-color);
  background: var(--faq-icon-bg);
  border-radius: 50%;
  transition: transform var(--transition-base, 0.3s ease);
}
.page-faq .faq-item[open] .faq-item__icon {
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(255,75,43,0.4);
}
.page-faq .faq-item__question {
  flex: 1;
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-text-primary, #FFFFFF);
  line-height: 1.4;
}
.page-faq .faq-item__arrow {
  flex-shrink: 0;
  font-size: 0.9rem;
  color: var(--faq-arrow-color);
  transition: transform var(--transition-base, 0.3s ease);
}
.page-faq .faq-item[open] .faq-item__arrow {
  transform: rotate(180deg);
}

/* 答案区域 */
.page-faq .faq-item__answer {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-size: 0.95rem;
  color: var(--clr-text-secondary, #B0C4DE);
  line-height: 1.7;
  animation: faqFadeIn 0.35s ease both;
}
.page-faq .faq-item__answer p {
  margin: 0 0 0.75rem;
}
.page-faq .faq-item__answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__answer .data-highlight {
  color: var(--clr-text-high-contrast, #FFD700);
  font-weight: 600;
}
.page-faq .faq-item__img {
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg, 16px) * 0.6);
  margin-top: 0.75rem;
  display: block;
  border: 1px solid var(--clr-border-subtle, #2E4A6E);
}
.page-faq .faq-item__link {
  color: var(--clr-accent-orange-red, #FF4B2B);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base, 0.3s ease), color var(--transition-base, 0.3s ease);
}
.page-faq .faq-item__link:hover,
.page-faq .faq-item__link:focus-visible {
  border-bottom-color: var(--clr-accent-orange-red, #FF4B2B);
  color: var(--clr-accent-gold, #F5A623);
  outline: none;
}

/* 展开动画 - 兼容 reduced-motion */
@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__answer {
    animation: none;
  }
  .page-faq .faq-item__icon,
  .page-faq .faq-item__arrow {
    transition: none;
  }
  .page-faq .faq-item__summary {
    transition: none;
  }
  .page-faq .faq-item {
    transition: none;
  }
  .page-faq .faq-search__input {
    transition: none;
  }
}

/* ===== 底部 CTA ===== */
.page-faq .faq-cta {
  background: var(--faq-cta-bg);
  border-radius: var(--radius-lg, 16px);
  padding: 2rem 1.5rem;
  text-align: center;
  border: 1px solid var(--clr-border-subtle, #2E4A6E);
  margin-top: 0.5rem;
}
.page-faq .faq-cta__text {
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-size: 1.1rem;
  color: var(--clr-text-primary, #FFFFFF);
  margin: 0 0 1.25rem;
}
.page-faq .faq-cta__btn {
  display: inline-block;
  margin: 0.35rem 0.5rem;
}
.page-faq .btn--primary {
  background: var(--clr-accent-orange-red, #FF4B2B);
  color: #FFFFFF;
  border: none;
  padding: 0.7rem 1.8rem;
  border-radius: var(--radius-pill, 9999px);
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-base, 0.3s ease), transform var(--transition-base, 0.3s ease);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: #e03d1f;
  transform: translateY(-2px);
  outline: none;
}
.page-faq .btn--ghost {
  background: transparent;
  color: var(--clr-text-primary, #FFFFFF);
  border: 2px solid var(--clr-border-subtle, #2E4A6E);
  padding: 0.7rem 1.8rem;
  border-radius: var(--radius-pill, 9999px);
  font-family: var(--font-body, 'Noto Sans SC Regular', sans-serif);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color var(--transition-base, 0.3s ease), background var(--transition-base, 0.3s ease), transform var(--transition-base, 0.3s ease);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  border-color: var(--clr-accent-orange-red, #FF4B2B);
  background: rgba(255,75,43,0.08);
  transform: translateY(-2px);
  outline: none;
}

/* ===== 响应式 ===== */
/* 移动端优先：默认已经是窄屏适配，以下主要做桌面增强 */

@media (min-width: 640px) {
  .page-faq .container {
    padding: 1.5rem 2rem 3rem;
  }
  .page-faq .faq-hero {
    flex-direction: row;
    align-items: flex-end;
    padding: 2rem 2rem 0;
    gap: 2rem;
  }
  .page-faq .faq-hero__content {
    flex: 1 1 50%;
    padding-bottom: 1.5rem;
  }
  .page-faq .faq-hero__image-wrap {
    flex: 0 0 48%;
    margin: 0 -2rem 0 0;
    border-radius: var(--radius-lg, 16px) 0 0 0;
    max-height: 220px;
    overflow: hidden;
  }
  .page-faq .faq-hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .page-faq .faq-hero::after {
    top: -40%;
    right: -10%;
    width: 40%;
  }
  .page-faq .faq-search {
    margin-bottom: 2.5rem;
  }
  .page-faq .faq-categories {
    gap: 3rem;
  }
  .page-faq .faq-cta {
    padding: 2.5rem 2rem;
  }
  .page-faq .faq-item__summary {
    padding: 1.1rem 1.5rem;
  }
  .page-faq .faq-item__answer {
    padding: 0 1.5rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .container {
    padding: 2rem 2.5rem 4rem;
  }
  .page-faq .faq-hero {
    padding: 2.5rem 2.5rem 0;
  }
  .page-faq .faq-hero__image-wrap {
    flex-basis: 45%;
    max-height: 240px;
  }
  .page-faq .faq-hero__title {
    font-size: 2.5rem;
  }
  .page-faq .faq-hero__desc {
    font-size: 1.05rem;
  }
  .page-faq .faq-items {
    max-width: 56rem;
  }
  .page-faq .faq-section {
    max-width: 56rem;
  }
  .page-faq .faq-categories {
    align-items: flex-start;
  }
  .page-faq .faq-cta {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    padding: 3rem 2.5rem;
  }
}

/* 超大屏内容宽度约束 */
@media (min-width: 1280px) {
  .page-faq .faq-hero__image-wrap {
    max-height: 260px;
  }
  .page-faq .faq-hero__content {
    padding-bottom: 2rem;
  }
}
</style>

```