/* ===== 页面作用域：.page-faq ===== */
.page-faq {
  --faq-hero-padding-y: 2rem;
  --faq-card-radius: 8px;
  --faq-gap: 1.5rem;
  --faq-search-maxw: 520px;
  --faq-category-number-size: 2rem;
  --faq-question-indent: 2.25rem;

  display: block;
  width: 100%;
  max-width: var(--max-content, 1200px);
  margin: 0 auto;
  padding: var(--faq-hero-padding-y) 1rem 3rem;
  color: var(--text-primary, #ffffff);
}

/* ---- 标题区 ---- */
.page-faq .faq-hero {
  margin-bottom: 1.75rem;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary, #b0b8c4);
  margin-bottom: 0.75rem;
}

.page-faq .breadcrumb a {
  color: var(--tertiary-accent, #c0c0c0);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq .breadcrumb a:hover {
  color: var(--primary-accent, #d4a745);
}

.page-faq .breadcrumb-sep {
  color: var(--primary-accent, #d4a745);
  font-weight: 300;
}

.page-faq .page-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5rem;
  background: linear-gradient(135deg, var(--gold-start, #d4a745), var(--gold-end, #f0c040));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-faq .page-subtitle {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary, #b0b8c4);
  margin: 0 0 1rem;
  max-width: 640px;
}

.page-faq .hero-divider {
  margin: 0.5rem 0 0;
}

/* ---- 搜索区 ---- */
.page-faq .faq-search {
  margin-bottom: 2rem;
}

.page-faq .search-inner {
  position: relative;
  max-width: var(--faq-search-maxw);
}

.page-faq .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--tertiary-accent, #c0c0c0);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

.page-faq .faq-search-input {
  display: block;
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.5rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary, #ffffff);
  background: var(--card-bg, #1c2e4a);
  border: 1px solid rgba(192, 192, 192, 0.25);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  box-sizing: border-box;
}

.page-faq .faq-search-input::placeholder {
  color: var(--text-secondary, #b0b8c4);
  opacity: 0.7;
}

.page-faq .faq-search-input:focus {
  border-color: var(--primary-accent, #d4a745);
  box-shadow: 0 0 0 3px rgba(212, 167, 69, 0.18);
}

/* ---- 分类折叠面板容器 ---- */
.page-faq .faq-categories {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
}

/* ---- 单个分类卡片 ---- */
.page-faq .faq-category {
  background: var(--card-bg, #1c2e4a);
  border-radius: var(--faq-card-radius);
  border-top: 4px solid var(--primary-accent, #d4a745);
  padding: 1.25rem 1rem;
  transition: box-shadow 0.3s;
}

.page-faq .faq-category:hover {
  box-shadow: 0 4px 20px rgba(212, 167, 69, 0.08);
}

/* ---- 分类头部 ---- */
.page-faq .category-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.page-faq .category-number {
  font-size: var(--faq-category-number-size);
  font-weight: 700;
  line-height: 1;
  color: var(--primary-accent, #d4a745);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.page-faq .category-title {
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  background: linear-gradient(135deg, var(--gold-start, #d4a745), var(--gold-end, #f0c040));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---- 分类配图 ---- */
.page-faq .category-image {
  margin: 0.75rem 0 1rem;
  border-radius: 4px;
  overflow: hidden;
  background: rgba(10, 22, 40, 0.4);
}

.page-faq .category-image img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
}

/* ---- 问答列表 ---- */
.page-faq .faq-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ---- 单个问答项 (details) ---- */
.page-faq .faq-item {
  border-bottom: 1px solid rgba(192, 192, 192, 0.12);
  padding-bottom: 0.25rem;
}

.page-faq .faq-item:last-child {
  border-bottom: none;
}

/* ---- 问题 (summary) ---- */
.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.2s;
  border-radius: 4px;
}

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

.page-faq .faq-question:hover {
  background: rgba(212, 167, 69, 0.05);
}

.page-faq .question-number {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-accent, #d4a745);
  min-width: 1.6rem;
  text-align: right;
  flex-shrink: 0;
  line-height: 1.4;
}

.page-faq .question-text {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary, #ffffff);
}

.page-faq .question-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform 0.3s ease;
}

.page-faq .question-icon::before,
.page-faq .question-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--tertiary-accent, #c0c0c0);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.page-faq .question-icon::before {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .question-icon::after {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .question-icon {
  transform: rotate(45deg);
}

.page-faq .faq-item[open] .question-icon::before {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .question-icon::after {
  transform: translate(-50%, -50%) rotate(180deg);
  opacity: 0;
}

/* ---- 答案 ---- */
.page-faq .faq-answer {
  padding: 0.2rem 0 0.8rem calc(var(--faq-question-indent));
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary, #b0b8c4);
  animation: faqFadeIn 0.3s ease;
}

.page-faq .faq-answer p {
  margin: 0 0 0.5rem;
}

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

.page-faq .faq-answer a {
  color: var(--primary-accent, #d4a745);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.page-faq .faq-answer a:hover {
  color: var(--nav-hover, #f0c040);
  border-bottom-color: currentColor;
}

@keyframes faqFadeIn {
  from {
    opacity: 0.2;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- 兼容无JS：所有details默认展开？不，由浏览器控制，但保留可读性 ---- */

/* ---- 桌面端增强 ---- */
@media (min-width: 768px) {
  .page-faq {
    padding: 2.5rem 2rem 4rem;
  }

  .page-faq .faq-hero {
    margin-bottom: 2rem;
  }

  .page-faq .page-title {
    font-size: 2.6rem;
  }

  .page-faq .page-subtitle {
    font-size: 1.1rem;
  }

  .page-faq .faq-category {
    padding: 1.5rem 1.75rem 1.75rem;
  }

  .page-faq .category-number {
    --faq-category-number-size: 2.4rem;
  }

  .page-faq .category-title {
    font-size: 1.5rem;
  }

  .page-faq .question-text {
    font-size: 1rem;
  }

  .page-faq .faq-answer {
    font-size: 0.95rem;
    padding-right: 2rem;
  }

  .page-faq .faq-search-input {
    padding: 0.8rem 1rem 0.8rem 2.6rem;
    font-size: 1rem;
  }

  .page-faq .category-image {
    max-width: 560px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding: 3rem 2.5rem 5rem;
  }

  .page-faq .faq-categories {
    gap: 1.75rem;
  }

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

/* ---- 大幅宽屏：内容区自然居中，最大宽度已由max-content控制 ---- */

/* ---- 窄屏安全 ---- */
@media (max-width: 480px) {
  .page-faq {
    padding: 1.25rem 0.75rem 2.5rem;
  }

  .page-faq .page-title {
    font-size: 1.6rem;
  }

  .page-faq .faq-category {
    padding: 1rem 0.75rem 1.25rem;
  }

  .page-faq .category-number {
    --faq-category-number-size: 1.6rem;
  }

  .page-faq .category-title {
    font-size: 1.1rem;
  }

  .page-faq .question-number {
    min-width: 1.4rem;
    font-size: 0.75rem;
  }

  .page-faq .faq-answer {
    padding-left: 1.8rem;
  }
}

/* ---- 尊重减少动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-answer {
    animation: none;
  }

  .page-faq .question-icon,
  .page-faq .question-icon::before,
  .page-faq .question-icon::after {
    transition: none;
  }

  .page-faq .faq-item[open] .question-icon {
    transform: none;
  }

  .page-faq .faq-search-input {
    transition: none;
  }

  .page-faq .faq-category {
    transition: none;
  }

  .page-faq .faq-category:hover {
    box-shadow: none;
  }
}