/* ===== 帮助中心页面专属样式 ===== */
.page-faq {
  --faq-hero-radius: 28px;
  --faq-card-radius: 20px;
  --faq-gap: 16px;
  --faq-blue-soft: rgba(30, 144, 255, 0.14);
  --faq-orange-soft: rgba(255, 127, 80, 0.12);
}

.page-faq .breadcrumb {
  margin-top: 20px;
}

/* ===== 页首 Hero ===== */
.page-faq-hero {
  margin-top: 16px;
}

.page-faq-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

.page-faq-hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  line-height: 1.08;
  color: var(--text);
  letter-spacing: 0.01em;
}

.page-faq-hero-sep {
  color: var(--orange);
  font-weight: 300;
  margin: 0 0.15em;
}

.page-faq-hero-sub {
  color: var(--text-dim);
  font-size: 0.62em;
}

.page-faq-hero-lead {
  margin: 18px 0 0;
  max-width: 64ch;
  color: var(--text-dim);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* 搜索引导 */
.page-faq-search {
  margin-top: 24px;
}

.page-faq-searchbar {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 680px;
  padding: 8px 8px 8px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  transition: border-color 200ms var(--ease-out);
}

.page-faq-searchbar:hover,
.page-faq-searchbar:focus-within {
  border-color: rgba(30, 144, 255, 0.5);
}

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

.page-faq-search-placeholder {
  flex: 1 1 auto;
  color: var(--text-dim);
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-faq-hot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
}

.page-faq-hot-label {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.page-faq-hero-side {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-faq-hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-height: 108px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.page-faq-hero-panel-primary {
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.2), rgba(30, 144, 255, 0.04));
  border-color: rgba(30, 144, 255, 0.4);
}

.page-faq-hero-panel-accent {
  background: linear-gradient(135deg, rgba(255, 127, 80, 0.16), rgba(255, 127, 80, 0.03));
  border-color: rgba(255, 127, 80, 0.4);
}

.page-faq-hero-panel-value {
  margin: 0;
  font-family: var(--font-data);
  font-size: 1.8rem;
  line-height: 1.2;
  color: var(--text);
}

.page-faq-hero-panel-label {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.88rem;
}

.page-faq-hero-figure {
  position: relative;
  margin-top: 24px;
  border-radius: var(--faq-hero-radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-float);
}

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

.page-faq-hero-figure-label {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: rgba(13, 17, 23, 0.78);
  border: 1px solid rgba(30, 144, 255, 0.35);
  color: var(--text);
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

/* ===== 热门问题 ===== */
.page-faq-hotgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: 28px;
}

.page-faq-hotcard {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--faq-card-radius);
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

.page-faq-hotcard:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 144, 255, 0.42);
  box-shadow: var(--shadow-blue);
}

.page-faq-hotnum {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.95rem;
  color: var(--blue);
}

.page-faq-hotq {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--text);
}

.page-faq-hota {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.65;
  flex: 1 1 auto;
}

/* ===== 分类导航浏览器 ===== */
.page-faq-browser {
  scroll-margin-top: 120px;
}

.page-faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 28px;
  align-items: start;
}

.page-faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq-catnav {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq-cat {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  color: var(--text-dim);
  text-decoration: none;
  scroll-snap-align: start;
  transition: background 200ms var(--ease-out), color 200ms var(--ease-out);
}

.page-faq-cat:hover {
  background: var(--faq-blue-soft);
  color: var(--text);
}

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

.page-faq-cat-label {
  font-size: 0.96rem;
  font-weight: 600;
  white-space: nowrap;
}

.page-faq-cat-count {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 0.76rem;
  color: var(--text-dim);
  background: var(--bg);
  border-radius: var(--radius-pill);
  padding: 2px 8px;
}

.page-faq-sidebar-note {
  padding: 18px;
  background: linear-gradient(135deg, rgba(255, 127, 80, 0.12), rgba(255, 127, 80, 0.03));
  border: 1px solid rgba(255, 127, 80, 0.3);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.page-faq-sidebar-title {
  margin: 0;
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
}

.page-faq-sidebar-sub {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.6;
}

.page-faq-panels {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}

.page-faq-category {
  scroll-margin-top: 120px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--faq-card-radius);
  transition: box-shadow 200ms var(--ease-out);
}

.page-faq-category:target {
  box-shadow: 0 0 0 2px rgba(30, 144, 255, 0.55);
}

.page-faq-category-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 6px;
}

.page-faq-category-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 14px;
}

.page-faq-category-tag {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-faq-category-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.25;
  color: var(--text);
}

.page-faq-category-desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.94rem;
  line-height: 1.6;
}

.page-faq-cat-figure {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

/* ===== FAQ 手风琴 ===== */
.page-faq-item {
  border-bottom: 1px solid var(--border-soft);
}

.page-faq-item:last-child {
  border-bottom: 0;
}

.page-faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  list-style: none;
  transition: color 200ms var(--ease-out);
}

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

.page-faq-item summary::marker {
  content: "";
}

.page-faq-item summary::-moz-list-bullet {
  list-style-type: none;
}

.page-faq-item summary:hover {
  color: var(--blue-bright);
}

.page-faq-item summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--faq-blue-soft);
  color: var(--blue);
  font-family: var(--font-data);
  font-size: 1.15rem;
  line-height: 1;
  transition: transform 240ms var(--ease-out), background 240ms var(--ease-out);
}

.page-faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--faq-orange-soft);
  color: var(--orange);
}

.page-faq-item-body {
  padding: 0 0 18px;
  color: var(--text-dim);
  font-size: 0.96rem;
  line-height: 1.75;
}

.page-faq-item-body p {
  margin: 0 0 12px;
}

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

.page-faq-item-body ol {
  margin: 0 0 12px;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq-item-body a {
  color: var(--blue-bright);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq-item[open] .page-faq-item-body {
  animation: page-faq-fade-in 300ms var(--ease-out);
}

@keyframes page-faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 联系支持 ===== */
.page-faq-contactgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: 28px;
}

.page-faq-contactcard {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--faq-card-radius);
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.page-faq-contactcard:hover {
  transform: translateY(-3px);
  border-color: rgba(30, 144, 255, 0.35);
}

.page-faq-contacticon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.18), rgba(255, 127, 80, 0.1));
  color: var(--blue);
}

.page-faq-contacticon svg {
  width: 22px;
  height: 22px;
}

.page-faq-contactcard h3 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text);
}

.page-faq-contactvalue {
  margin: 0;
  font-family: var(--font-data);
  font-size: 1rem;
  color: var(--text);
  word-break: break-all;
}

.page-faq-contactcard .text-dim {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq-contactcard .btn {
  margin-top: 6px;
}

/* ===== 平板适配 ===== */
@media (min-width: 720px) {
  .page-faq-hotgrid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq-hero-side {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq-contactgrid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq-category-head {
    grid-template-columns: 1fr 220px;
    align-items: center;
  }

  .page-faq-cat-figure {
    margin-bottom: 14px;
  }
}

/* ===== 桌面适配 ===== */
@media (min-width: 960px) {
  .page-faq-hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 36px;
  }

  .page-faq-hero-side {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq-hero-panel-primary {
    grid-column: 1 / -1;
  }

  .page-faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 28px;
  }

  .page-faq-sidebar {
    position: sticky;
    top: 100px;
  }

  .page-faq-catnav {
    flex-direction: column;
    overflow-x: visible;
    scroll-snap-type: none;
  }

  .page-faq-cat {
    flex: 0 0 auto;
    width: 100%;
  }

  .page-faq-cat-count {
    margin-left: auto;
  }

  .page-faq-contactgrid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== 大屏微调 ===== */
@media (min-width: 1200px) {
  .page-faq-hero {
    padding-top: 12px;
  }

  .page-faq-hotcard {
    padding: 26px;
  }

  .page-faq-category {
    padding: 28px 30px;
  }
}