.page-faq {
  background: var(--c-bg);
  color: var(--c-ink);
}

/* ========== Hero 区域 ========== */
.page-faq .faq-hero {
  background: var(--c-primary-dark);
  position: relative;
  overflow: hidden;
  padding: 48px 0 44px;
  border-bottom: 6px solid var(--c-accent);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 100%;
  background: var(--c-accent);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0% 100%);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    -45deg,
    var(--c-highlight) 0,
    var(--c-highlight) 14px,
    var(--c-accent) 14px,
    var(--c-accent) 28px
  );
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-highlight);
  border: 1px solid rgba(255, 200, 87, 0.5);
  border-radius: 2px;
  padding: 4px 12px;
  margin-bottom: 18px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: 28px;
  line-height: 1.3;
  color: #ffffff;
  margin: 0 0 16px;
  text-shadow: 3px 3px 0 rgba(255, 84, 50, 0.45);
}

.page-faq .faq-hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-link);
  max-width: 540px;
  margin-bottom: 20px;
}

.page-faq .faq-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-faq .faq-tag {
  font-size: 12px;
  padding: 4px 12px;
  border: 1px solid rgba(168, 198, 232, 0.35);
  border-radius: 20px;
  color: var(--c-link);
  background: rgba(13, 36, 51, 0.35);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-meta-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(168, 198, 232, 0.2);
  border-radius: 4px;
  padding: 10px 14px;
  text-align: center;
  min-width: 80px;
}

.page-faq .faq-hero-meta-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--c-highlight);
  line-height: 1.2;
}

.page-faq .faq-hero-meta-item span {
  display: block;
  font-size: 12px;
  color: var(--c-link);
  margin-top: 4px;
}

.page-faq .faq-hero-pic {
  position: relative;
  align-self: center;
}

.page-faq .faq-hero-img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  box-shadow: 8px 8px 0 rgba(255, 84, 50, 0.45);
}

/* ========== 面包屑 ========== */
.page-faq .breadcrumb {
  padding: 20px 0 4px;
  font-size: 14px;
}

.page-faq .breadcrumb-item {
  color: var(--c-secondary);
  text-decoration: none;
}

.page-faq .breadcrumb-item[aria-current="page"] {
  color: var(--c-primary);
  font-weight: 700;
}

.page-faq .breadcrumb-separator {
  color: var(--c-accent);
  margin: 0 6px;
}

/* ========== 两栏布局 ========== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
  padding: 28px 0 64px;
}

/* ========== 左侧目录 ========== */
.page-faq .faq-sidebar-sticky {
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid var(--c-line);
  padding: 24px 20px;
  box-shadow: 4px 4px 0 rgba(13, 36, 51, 0.06);
}

.page-faq .faq-sidebar-head {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.page-faq .faq-sidebar-index {
  font-family: var(--font-heading);
  font-size: 34px;
  color: var(--c-accent);
  line-height: 1;
  border-bottom: 3px solid var(--c-highlight);
}

.page-faq .faq-sidebar-title h2 {
  font-size: 19px;
  margin: 0;
  color: var(--c-primary);
  font-family: var(--font-heading);
}

.page-faq .faq-sidebar-title p {
  font-size: 13px;
  color: var(--c-secondary);
  margin: 4px 0 0;
}

.page-faq .faq-sidebar-figure {
  margin: 0 0 16px;
}

.page-faq .faq-sidebar-img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--c-line);
}

.page-faq .faq-toc {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}

.page-faq .faq-toc li {
  margin-bottom: 4px;
}

.page-faq .faq-toc a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 4px;
  color: var(--c-primary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}

.page-faq .faq-toc a:hover {
  background: rgba(13, 36, 51, 0.05);
  color: var(--c-accent);
  transform: translateX(4px);
}

.page-faq .faq-toc-no {
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--c-secondary);
  border: 1px solid var(--c-line);
  border-radius: 3px;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.page-faq .faq-toc a:hover .faq-toc-no {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #ffffff;
}

.page-faq .faq-sidebar-cta {
  display: block;
  text-align: center;
  background: var(--c-accent);
  color: #ffffff;
  border-radius: 4px;
  transition: background 0.25s, transform 0.2s;
}

.page-faq .faq-sidebar-cta:hover {
  background: var(--c-accent-light);
  transform: translateY(-2px);
}

/* ========== 右侧内容 ========== */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: 40px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 2px solid var(--c-primary);
  padding-bottom: 12px;
  margin-bottom: 20px;
  position: relative;
}

.page-faq .faq-group-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 56px;
  height: 2px;
  background: var(--c-accent);
}

.page-faq .faq-group-no {
  font-family: var(--font-heading);
  font-size: 28px;
  color: var(--c-accent);
  line-height: 1;
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  color: var(--c-primary);
  margin: 0;
}

.page-faq .faq-group-count {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-secondary);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 20px;
  padding: 4px 12px;
  white-space: nowrap;
}

.page-faq .faq-group-count::before {
  content: "●";
  color: var(--c-accent);
  margin-right: 5px;
  font-size: 10px;
  vertical-align: middle;
}

/* ========== 折叠面板 ========== */
.page-faq .faq-item {
  background: #ffffff;
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-accent);
  border-radius: 4px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}

.page-faq .faq-item[open] {
  box-shadow: 6px 6px 0 rgba(13, 36, 51, 0.08);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s;
  user-select: none;
}

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

.page-faq .faq-item summary:hover {
  background: rgba(13, 36, 51, 0.02);
}

.page-faq .faq-q {
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-primary-dark);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.page-faq .faq-q-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--c-accent);
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
  border-radius: 3px;
  flex-shrink: 0;
  font-family: var(--font-heading);
}

.page-faq .faq-toggle-icon {
  position: relative;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border: 1px solid var(--c-line);
  border-radius: 3px;
  display: inline-block;
  transition: background 0.2s;
}

.page-faq .faq-toggle-icon::before,
.page-faq .faq-toggle-icon::after {
  content: "";
  position: absolute;
  background: var(--c-accent);
  border-radius: 1px;
  transition: transform 0.25s ease;
}

.page-faq .faq-toggle-icon::before {
  top: 11px;
  left: 6px;
  right: 6px;
  height: 2px;
}

.page-faq .faq-toggle-icon::after {
  top: 6px;
  bottom: 6px;
  left: 11px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-toggle-icon {
  background: var(--c-accent);
}

.page-faq .faq-item[open] .faq-toggle-icon::before,
.page-faq .faq-item[open] .faq-toggle-icon::after {
  background: #ffffff;
}

.page-faq .faq-item[open] .faq-toggle-icon::after {
  transform: scaleY(0);
}

.page-faq .faq-a {
  padding: 0 18px 20px 52px;
  border-top: 1px dashed var(--c-line);
  margin-top: 0;
}

.page-faq .faq-a p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-faq .faq-a a {
  color: var(--c-primary);
  text-decoration: underline;
  text-decoration-color: var(--c-accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-faq .faq-a a:hover {
  color: var(--c-accent);
}

/* ========== 响应式 ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
  }

  .page-faq .faq-hero {
    padding: 64px 0 56px;
  }

  .page-faq .faq-hero h1 {
    font-size: 38px;
  }

  .page-faq .faq-hero-img {
    height: 280px;
  }

  .page-faq .faq-hero-meta-item {
    min-width: 96px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-layout {
    grid-template-columns: 300px 1fr;
    gap: 40px;
  }

  .page-faq .faq-sidebar-sticky {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-hero-img {
    height: 320px;
  }

  .page-faq .faq-hero-desc {
    font-size: 17px;
  }
}