/* ===== 帮助中心专属样式 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 12%, rgba(198, 255, 0, 0.09) 0%, transparent 32%),
    linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 58%, var(--color-surface-light) 100%);
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 90%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -2%;
  bottom: -14px;
  width: 32%;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent-orange) 30%, var(--color-accent-green) 100%);
  transform: skewX(-35deg);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 40px;
  padding-bottom: 60px;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .breadcrumbs {
  margin-bottom: 18px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 8px;
  font-family: var(--font-headlines);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-text-primary);
}

.page-faq .faq-h1-tag {
  display: block;
  margin-top: 10px;
  font-family: var(--font-body);
  font-size: 0.4em;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-accent-green);
}

.page-faq .faq-hero-sub {
  margin: 0 0 26px;
  max-width: 46ch;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
}

.page-faq .faq-query {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: rgba(20, 42, 74, 0.78);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.page-faq .faq-query-icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--color-accent-orange);
}

.page-faq .faq-query-text {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.page-faq .faq-query-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

.page-faq .faq-query-links a {
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq .faq-query-links a:hover,
.page-faq .faq-query-links a:focus-visible {
  background-color: var(--color-accent-green);
  border-color: var(--color-accent-green);
  color: var(--color-primary-dark);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  padding: 12px 14px;
  background: rgba(6, 16, 32, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.page-faq .faq-stat-num {
  font-family: var(--font-numbers);
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--color-accent-green);
}

.page-faq .faq-stat-label {
  margin-top: 4px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.page-faq .faq-hero-art {
  min-height: 200px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.page-faq .faq-hero-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 主体布局 ===== */
.page-faq .faq-body {
  padding: 48px 0 88px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

/* ===== 分类索引 ===== */
.page-faq .faq-index {
  padding: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.page-faq .faq-index-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.page-faq .faq-index-num {
  font-family: var(--font-numbers);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-accent-orange);
}

.page-faq .faq-index-title {
  font-family: var(--font-headlines);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.page-faq .faq-index-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index-link {
  display: inline-flex;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background-color: var(--color-accent-green);
  border-color: var(--color-accent-green);
  color: var(--color-primary-dark);
}

.page-faq .faq-index-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--color-border);
}

.page-faq .faq-index-note-title {
  margin: 0 0 6px;
  font-family: var(--font-headlines);
  font-size: 1rem;
  color: var(--color-text-primary);
}

.page-faq .faq-index-note p {
  margin: 0 0 12px;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== 问答内容 ===== */
.page-faq .faq-content {
  display: grid;
  gap: 44px;
  min-width: 0;
}

.page-faq .faq-section {
  position: relative;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.page-faq .faq-section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent-orange) 0%, var(--color-border) 42%, transparent 100%);
}

.page-faq .faq-section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
}

.page-faq .faq-section-num {
  font-family: var(--font-numbers);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--color-accent-orange);
}

.page-faq .faq-section-head h2 {
  margin: 0;
  font-family: var(--font-headlines);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.page-faq .faq-section-meta {
  margin-left: auto;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-numbers);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ===== 查询指南 ===== */
.page-faq .faq-guide {
  display: grid;
  grid-template-columns: 1fr;
  margin-bottom: 22px;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.page-faq .faq-guide-media {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-faq .faq-guide-body {
  padding: 20px;
}

.page-faq .faq-guide-label {
  font-family: var(--font-numbers);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-orange);
}

.page-faq .faq-guide-body h3 {
  margin: 6px 0 12px;
  font-family: var(--font-headlines);
  font-size: 1.25rem;
  color: var(--color-text-primary);
}

.page-faq .faq-guide-steps {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding-left: 20px;
}

.page-faq .faq-guide-steps li {
  padding-left: 4px;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-faq .faq-guide-steps li::marker {
  color: var(--color-accent-green);
}

/* ===== 折叠面板 ===== */
.page-faq .faq-item-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.page-faq .faq-item[open] {
  background: var(--color-surface-light);
  border-color: rgba(198, 255, 0, 0.45);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
}

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

.page-faq .faq-item-q {
  flex: 1 1 auto;
}

.page-faq .faq-item summary::before {
  order: 2;
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  content: "";
  border-left: 2px solid var(--color-accent-orange);
  border-bottom: 2px solid var(--color-accent-orange);
  transform: rotate(-45deg);
  transition: transform var(--transition-base), border-color var(--transition-fast);
}

.page-faq .faq-item[open] summary::before {
  transform: rotate(135deg);
  border-color: var(--color-accent-green);
}

.page-faq .faq-item summary:hover {
  color: var(--color-accent-green);
}

.page-faq .faq-item summary:hover::before {
  border-color: var(--color-accent-green);
}

.page-faq .faq-item[open] summary {
  padding-bottom: 10px;
}

.page-faq .faq-item-a {
  padding: 0 18px 18px;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-faq .faq-item-a p {
  margin: 0;
}

.page-faq .faq-item-a a {
  color: var(--color-accent-green);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.page-faq .faq-item-a a:hover {
  color: var(--color-accent-orange);
  text-decoration: none;
}

/* ===== 平板与桌面 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1fr minmax(320px, 440px);
    gap: 48px;
    align-items: center;
    padding-top: 56px;
    padding-bottom: 76px;
  }

  .page-faq .faq-h1-tag {
    font-size: 0.36em;
  }

  .page-faq .faq-hero-art {
    min-height: 280px;
    height: 100%;
  }

  .page-faq .faq-hero-art img {
    height: 100%;
    max-height: 360px;
    object-fit: cover;
  }

  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px 1fr;
    gap: 48px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height-desktop) + 24px);
  }

  .page-faq .faq-index-nav {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-faq .faq-index-link {
    display: block;
  }

  .page-faq .faq-guide {
    grid-template-columns: 260px 1fr;
  }

  .page-faq .faq-guide-media {
    height: 100%;
    min-height: 220px;
  }
}

/* ===== 较大桌面微调 ===== */
@media (min-width: 1200px) {
  .page-faq .faq-layout {
    grid-template-columns: 270px 1fr;
    gap: 64px;
  }

  .page-faq .faq-body {
    padding-top: 60px;
  }
}