/* ===== 支持中心 FAQ 页面专属样式 ===== */
.page-faq {
  padding-bottom: 80px;
}

/* 面包屑顶部间距微调 */
.page-faq .bf-breadcrumb {
  padding-top: 32px;
}

/* 页面标题区 */
.page-faq__hero {
  position: relative;
  padding: 36px 0 32px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--bf-border);
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 140px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--bf-gold), var(--bf-red));
}

.page-faq__hero h1 {
  margin: 12px 0 16px;
  max-width: 760px;
  font-family: var(--bf-font-title);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--bf-cream);
}

.page-faq__intro {
  max-width: 680px;
  margin: 0 0 24px;
  font-family: var(--bf-font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--bf-gray);
}

/* 搜索框 */
.page-faq__search {
  position: relative;
  max-width: 460px;
}

.page-faq__search input {
  width: 100%;
  padding: 13px 16px 13px 44px;
  color: var(--bf-cream);
  font-family: var(--bf-font-body);
  font-size: 14px;
  background: var(--bf-surface);
  border: 1px solid var(--bf-border);
  border-radius: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq__search input::placeholder {
  color: var(--bf-gray);
}

.page-faq__search input:focus {
  outline: 0;
  border-color: var(--bf-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.12);
}

.page-faq__search::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 13px;
  height: 13px;
  border: 1.6px solid var(--bf-gold);
  border-radius: 50%;
  transform: translateY(-62%);
  pointer-events: none;
}

.page-faq__search::after {
  content: "";
  position: absolute;
  left: 27px;
  top: calc(50% + 6px);
  width: 7px;
  height: 1.6px;
  background: var(--bf-gold);
  transform: rotate(45deg);
  pointer-events: none;
}

/* 两栏布局 */
.page-faq__layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 侧边栏分类 */
.page-faq__sidebar-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--bf-font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bf-gray);
}

.page-faq__sidebar-title::before {
  content: "//";
  color: var(--bf-gold);
}

.page-faq__category-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq__category-list::-webkit-scrollbar {
  display: none;
}

.page-faq__category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  white-space: nowrap;
  font-family: var(--bf-font-body);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--bf-cream);
  background: var(--bf-surface);
  border: 1px solid var(--bf-border);
  border-radius: 999px;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq__category-link:hover,
.page-faq__category-link:focus-visible {
  color: var(--bf-gold);
  border-color: var(--bf-gold);
  background: var(--bf-surface-light);
}

.page-faq__category-num {
  font-family: var(--bf-font-data);
  font-size: 11px;
  color: var(--bf-gold);
}

/* 问答分组 */
.page-faq__group {
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--bf-header-height) + 16px);
}

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

.page-faq__group-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--bf-border);
}

.page-faq__group-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 1px;
  background: var(--bf-gold);
}

.page-faq__group-num {
  font-family: var(--bf-font-data);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--bf-gold);
}

.page-faq__group-meta h2 {
  margin: 0 0 4px;
  font-family: var(--bf-font-title);
  font-size: 21px;
  font-weight: 800;
  color: var(--bf-cream);
}

.page-faq__group-meta p {
  margin: 0;
  font-family: var(--bf-font-body);
  font-size: 13px;
  color: var(--bf-gray);
}

/* 图片区 */
.page-faq__figure {
  margin: 0 0 20px;
}

.page-faq__figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--bf-border);
  border-radius: 8px;
  background: var(--bf-surface);
}

.page-faq__figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-faq__figure--portrait {
  max-width: 280px;
}

.page-faq__figure--portrait img {
  aspect-ratio: 3 / 4;
}

/* 折叠问答 */
.page-faq__qa {
  display: grid;
  gap: 12px;
}

.page-faq__qa-item {
  overflow: hidden;
  background: var(--bf-surface);
  border: 1px solid var(--bf-border);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.page-faq__qa-item[open] {
  border-color: var(--bf-gold);
}

.page-faq__qa-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.page-faq__qa-item summary::-webkit-details-marker {
  display: none;
}

.page-faq__qa-item summary:focus-visible {
  outline: 2px solid var(--bf-gold);
  outline-offset: -2px;
  border-radius: 8px;
}

.page-faq__qa-item summary h3 {
  flex: 1;
  margin: 0;
  font-family: var(--bf-font-title);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--bf-cream);
}

.page-faq__qa-item summary::after {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--bf-gold);
  border-bottom: 2px solid var(--bf-gold);
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.page-faq__qa-item[open] summary::after {
  transform: rotate(-135deg);
}

.page-faq__qa-body {
  padding: 0 20px 20px;
  border-top: 1px solid var(--bf-border);
  font-family: var(--bf-font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--bf-gray);
}

.page-faq__qa-body > :first-child {
  margin-top: 16px;
}

.page-faq__qa-body p {
  margin: 0 0 8px;
}

.page-faq__qa-body ul {
  display: grid;
  gap: 6px;
  margin: 8px 0 0;
  padding-left: 18px;
}

.page-faq__qa-body strong {
  color: var(--bf-cream);
}

.page-faq__qa-body a {
  color: var(--bf-gold-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* 底部支持卡片 */
.page-faq__support-card {
  margin-top: 28px;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.07), transparent 40%),
    var(--bf-surface);
  border: 1px solid var(--bf-border);
  border-left: 3px solid var(--bf-gold);
  border-radius: 8px;
}

.page-faq__support-title {
  margin: 0 0 6px;
  font-family: var(--bf-font-title);
  font-size: 18px;
  font-weight: 800;
  color: var(--bf-cream);
}

.page-faq__support-text {
  margin: 0 0 18px;
  font-family: var(--bf-font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--bf-gray);
}

.page-faq__support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 桌面端布局 */
@media (min-width: 992px) {
  .page-faq__layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 48px;
  }

  .page-faq__sidebar {
    position: sticky;
    top: calc(var(--bf-header-height) + 24px);
    flex: 0 0 220px;
  }

  .page-faq__category-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__category-link {
    display: flex;
    width: 100%;
    padding: 9px 12px;
    background: transparent;
    border: 0;
    border-left: 2px solid var(--bf-border);
    border-radius: 0;
    white-space: normal;
  }

  .page-faq__category-link:hover,
  .page-faq__category-link:focus-visible {
    background: var(--bf-surface);
    border-left-color: var(--bf-gold);
  }

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

  .page-faq__figure--portrait {
    max-width: 300px;
  }

  .page-faq__qa-item summary h3 {
    font-size: 16px;
  }
}