/* ===== 页面专属：help / faq ===== */
.page-faq {
  --faq-accent: var(--primary-green);
  --faq-accent-alt: var(--accent-orange);
  --faq-bg-card: var(--surface-card);
  --faq-bg-input: rgba(255,255,255,0.06);
  --faq-border-soft: var(--border-light);
  --faq-shadow-soft: 0 2px 12px rgba(0,0,0,0.3);
  --faq-radius: 10px;
  --faq-transition: 0.28s cubic-bezier(0.4,0,0.2,1);

  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--surface-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
}

/* ----- 横幅 ----- */
.faq-banner {
  position: relative;
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
  background-color: var(--primary-blue);
}
.faq-banner-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.faq-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.faq-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,26,46,0.88) 0%, rgba(11,26,46,0.55) 60%, rgba(0,230,118,0.18) 100%);
}
.faq-banner-content {
  position: relative;
  z-index: 1;
  padding: var(--spacing-xl) 0;
}
.faq-breadcrumb {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.faq-breadcrumb a {
  color: var(--faq-accent);
  text-decoration: none;
  transition: color var(--faq-transition);
}
.faq-breadcrumb a:hover {
  color: #fff;
}
.faq-breadcrumb-sep {
  opacity: 0.5;
}
.faq-banner-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 var(--spacing-xs);
  color: #fff;
  letter-spacing: -0.02em;
}
.faq-banner-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0;
  max-width: 32em;
}

/* ----- 工具栏 ----- */
.faq-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  border-bottom: 1px solid var(--faq-border-soft);
  margin-top: 0;
}
.faq-search-wrapper {
  flex: 1 1 260px;
  position: relative;
  display: flex;
  align-items: center;
  background: var(--faq-bg-input);
  border: 1px solid var(--faq-border-soft);
  border-radius: var(--faq-radius);
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.faq-search-wrapper:focus-within {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 3px rgba(0,230,118,0.15);
}
.faq-search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-secondary);
  pointer-events: none;
  flex-shrink: 0;
}
.faq-search-input {
  width: 100%;
  padding: 0.7rem 0.9rem 0.7rem 2.8rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  outline: none;
}
.faq-search-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}
.faq-count-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}
.faq-count-num {
  color: var(--faq-accent);
  font-weight: 700;
}

/* ----- 分类容器 ----- */
.faq-categories {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
}

/* ----- 单个分类 ----- */
.faq-category {
  background: var(--faq-bg-card);
  border-radius: var(--faq-radius);
  padding: var(--spacing-md) var(--spacing-md);
  box-shadow: var(--faq-shadow-soft);
  border-left: 3px solid var(--faq-accent);
  transition: border-color var(--faq-transition);
}
.faq-category:nth-child(even) {
  border-left-color: var(--faq-accent-alt);
}
.faq-category-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  margin: 0 0 var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  letter-spacing: -0.01em;
}
.faq-category-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  color: var(--faq-accent);
  flex-shrink: 0;
}
.faq-category:nth-child(even) .faq-category-icon {
  color: var(--faq-accent-alt);
}

/* ----- 问题列表 ----- */
.faq-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ----- 手风琴项 ----- */
.faq-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--faq-border-soft);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
}
.faq-item[open] {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 1px rgba(0,230,118,0.08);
}
.faq-item[open]:nth-child(even) {
  border-color: var(--faq-accent-alt);
  box-shadow: 0 0 0 1px rgba(255,109,0,0.08);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  list-style: none;
  font-weight: 400;
  font-size: 0.98rem;
  color: var(--text-primary);
  user-select: none;
  transition: background var(--faq-transition);
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question:hover {
  background: rgba(255,255,255,0.04);
}
.faq-q-text {
  flex: 1;
}
.faq-q-indicator {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--faq-accent);
  transition: transform var(--faq-transition);
}
.faq-item[open] .faq-q-indicator {
  transform: rotate(180deg);
}
.faq-item:nth-child(even) .faq-q-indicator {
  color: var(--faq-accent-alt);
}

/* ----- 答案区 ----- */
.faq-answer {
  padding: 0 var(--spacing-md) var(--spacing-md);
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: var(--spacing-sm);
}
.faq-answer a {
  color: var(--faq-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--faq-transition);
}
.faq-answer a:hover {
  color: #fff;
}
.faq-answer ul {
  margin: var(--spacing-xs) 0;
  padding-left: 1.25rem;
}
.faq-answer li {
  margin-bottom: 0.2rem;
}

/* ----- 示意图 ----- */
.faq-figure {
  margin: var(--spacing-sm) var(--spacing-md) var(--spacing-xs);
  padding: 0;
  border-radius: 6px;
  overflow: hidden;
  max-width: 320px;
}
.faq-figure-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
}
.faq-figure-caption {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
  font-style: italic;
  opacity: 0.7;
}

/* ----- 底部链接 ----- */
.faq-bottom-links {
  padding: var(--spacing-lg) 0 var(--spacing-xl);
  border-top: 1px solid var(--faq-border-soft);
  margin-top: var(--spacing-sm);
}
.faq-bottom-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
  text-align: center;
}
.faq-bottom-text a {
  color: var(--faq-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--faq-transition), color var(--faq-transition);
}
.faq-bottom-text a:hover {
  border-bottom-color: var(--faq-accent);
  color: #fff;
}

/* ----- 动效：减动偏好 ----- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .faq-q-indicator {
    transition: none;
  }
}

/* ===== 响应式 ===== */
/* 移动端优先 —— 窄屏默认已适配 */

/* 平板及以上 */
@media (min-width: 600px) {
  .faq-category {
    padding: var(--spacing-lg) var(--spacing-lg);
  }
  .faq-question {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
  }
  .faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    font-size: 0.95rem;
  }
  .faq-figure {
    max-width: 340px;
  }
  .faq-banner-title {
    font-size: clamp(2.6rem, 5vw, 4rem);
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .faq-categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
  }
  .faq-category {
    break-inside: avoid;
  }
  .faq-banner {
    min-height: 240px;
  }
  .faq-toolbar {
    flex-wrap: nowrap;
  }
  .faq-search-wrapper {
    max-width: 480px;
  }
  .faq-bottom-text {
    font-size: 1rem;
  }
}
</PAGE_CSS>