/* ========== 页面专属 CSS：支持中心 ========== */
.page-faq {
  --faq-img-radius: var(--radius-m);
}

/* —— 顶部帮助区 —— */
.page-faq .faq-helpdesk {
  background: var(--c-bg);
  padding: 48px 0 32px;
}

.page-faq .faq-helpdesk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-faq .faq-helpdesk-copy {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-s);
  padding: 28px;
  overflow: hidden;
}

.page-faq .faq-helpdesk-copy::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 96px;
  height: 96px;
  background: repeating-linear-gradient(135deg, var(--c-accent) 0 2px, transparent 2px 10px);
  opacity: 0.14;
  border-radius: 0 var(--radius-m) 0 var(--radius-m);
  pointer-events: none;
}

.page-faq .faq-helpdesk-lead {
  color: var(--c-subtle);
  font-size: 15px;
  line-height: 1.8;
  margin: 12px 0 20px;
  max-width: 48em;
}

.page-faq .faq-helpdesk-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-helpdesk-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ink);
  word-break: break-all;
}

.page-faq .faq-helpdesk-label {
  min-width: 88px;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-faq .faq-helpdesk-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 24px;
}

.page-faq .faq-helpdesk-stat {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-s);
  padding: 12px 6px;
  text-align: center;
  min-width: 0;
}

.page-faq .faq-stat-label {
  display: block;
  font-size: 12px;
  color: var(--c-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  white-space: nowrap;
}

.page-faq .faq-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.2;
  white-space: nowrap;
}

.page-faq .faq-stat-unit {
  font-size: 12px;
  font-weight: 400;
  color: var(--c-muted);
  margin-left: 2px;
}

.page-faq .faq-helpdesk-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-helpdesk-media {
  margin: 0;
}

.page-faq .faq-helpdesk-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  border-radius: var(--faq-img-radius);
  border: 1px solid var(--c-line);
  max-height: 360px;
}

/* —— 分类快速导航 —— */
.page-faq .faq-quicknav {
  background: var(--c-primary-deep);
  padding: 20px 0;
  border-top: 1px solid rgba(245, 247, 250, 0.08);
  border-bottom: 1px solid rgba(255, 106, 0, 0.45);
}

.page-faq .faq-quicknav-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.page-faq .faq-quicknav-inner a {
  display: inline-block;
  color: rgba(245, 247, 250, 0.86);
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid rgba(245, 247, 250, 0.26);
  border-radius: 999px;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-quicknav-inner a:hover,
.page-faq .faq-quicknav-inner a:focus-visible {
  border-color: var(--c-accent);
  color: var(--c-accent);
  background-color: rgba(0, 255, 136, 0.08);
}

/* —— 手风琴主体 —— */
.page-faq .faq-sections {
  background: var(--c-bg);
  padding: 48px 0 16px;
}

.page-faq .faq-hint {
  margin: 0 0 28px;
  padding: 12px 16px;
  background: var(--c-orange-tint);
  border-left: 3px solid var(--c-warm);
  border-radius: var(--radius-s);
  color: var(--c-subtle);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-category {
  margin-bottom: 48px;
  scroll-margin-top: 20px;
}

.page-faq .faq-category-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-bottom: 2px solid var(--c-primary);
  padding-bottom: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-category-head h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--c-primary);
}

.page-faq .faq-category-head p:last-child {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 40em;
}

/* —— 折叠项 —— */
.page-faq .faq-accordion {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-s);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-m);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 18px 42px 18px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  position: relative;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover {
  background-color: var(--c-green-tint);
  color: var(--c-primary);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: -2px;
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 400;
  color: var(--c-muted);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  color: var(--c-accent);
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-item-no {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-primary);
  background: var(--c-green-tint);
  border-radius: var(--radius-s);
  padding: 2px 6px;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item-no {
  background: var(--c-accent);
  color: var(--c-primary-deep);
}

.page-faq .faq-item-body {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--c-line);
  color: var(--c-subtle);
  font-size: 15px;
  line-height: 1.8;
}

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

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

.page-faq .faq-item-body a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(10, 31, 68, 0.35);
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}

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

/* —— 浏览器访问 —— */
.page-faq .faq-browser-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

.page-faq .faq-browser-media {
  margin: 0;
  background: var(--c-primary-deep);
  border-radius: var(--radius-m);
  border: 1px solid var(--c-line);
  overflow: hidden;
}

.page-faq .faq-browser-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-height: 320px;
  min-height: 220px;
}

/* —— 底部 CTA —— */
.page-faq .faq-cta {
  background: var(--c-primary-deep);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 240px;
  height: 240px;
  background: repeating-linear-gradient(135deg, rgba(30, 58, 111, 0.6) 0 2px, transparent 2px 12px);
  transform: rotate(12deg);
  pointer-events: none;
}

.page-faq .faq-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  padding: 0 24px;
}

.page-faq .faq-cta-inner h2 {
  margin: 12px 0 12px;
  font-size: 28px;
  font-weight: 900;
  color: #FFFFFF;
}

.page-faq .faq-cta-desc {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.78);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* —— 桌面端调整 —— */
@media (min-width: 860px) {
  .page-faq .faq-helpdesk {
    padding: 72px 0 40px;
  }

  .page-faq .faq-helpdesk-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
  }

  .page-faq .faq-helpdesk-media img {
    aspect-ratio: auto;
    height: 400px;
    max-height: none;
  }

  .page-faq .faq-sections {
    padding: 64px 0 24px;
  }

  .page-faq .faq-category {
    margin-bottom: 64px;
  }

  .page-faq .faq-category-head {
    flex-direction: row;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 24px;
  }

  .page-faq .faq-category-head p:last-child {
    margin-left: auto;
    text-align: right;
    max-width: 340px;
  }

  .page-faq .faq-category-head h2 {
    font-size: 36px;
  }

  .page-faq .faq-browser-layout {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-faq .faq-browser-media img {
    max-height: none;
    min-height: 420px;
  }

  .page-faq .faq-cta {
    padding: 80px 0;
  }

  .page-faq .faq-cta-inner h2 {
    font-size: 36px;
  }
}