/* =========================================================
   FAQ — 问答中心（作用域 .page-faq）
   ========================================================= */
.page-faq {
  background: var(--color-bg);
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  padding-top: 18px;
}

/* 首屏入口 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 48px 0 56px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -40px;
  width: 240px;
  height: 240px;
  background: var(--color-accent);
  opacity: 0.16;
  transform: rotate(24deg);
  clip-path: polygon(0 0, 100% 10%, 88% 100%, 10% 90%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -80px;
  width: 280px;
  height: 150px;
  background: var(--color-accent-green);
  opacity: 0.12;
  transform: rotate(-12deg);
  clip-path: polygon(6% 0, 100% 0, 94% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.page-faq .faq-hero__ticker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--color-accent-green);
  border: 1px solid rgba(198, 255, 0, 0.45);
  padding: 4px 10px;
  border-radius: 999px;
}

.page-faq .faq-hero__ticker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-green);
  animation: faq-pulse 2s ease-out infinite;
}

@keyframes faq-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(198, 255, 0, 0.55);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(198, 255, 0, 0);
  }
}

.page-faq .faq-hero__title {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 4.4vw, 2.9rem);
  line-height: 1.14;
  margin: 0 0 12px;
  max-width: 800px;
}

.page-faq .faq-hero__meta {
  font-family: var(--font-data);
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: 16px;
}

.page-faq .faq-hero__desc {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
  margin-bottom: 24px;
}

.page-faq .faq-hero__route {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__route .route-line__step {
  display: inline-block;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: color 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}

.page-faq .faq-hero__route .route-line__step:hover {
  color: #fff;
  border-bottom-color: var(--color-accent);
}

/* 检索与筛选 */
.page-faq .faq-tools {
  position: relative;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: 20px 0;
}

.page-faq .faq-tools__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-tools__search {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-tools__label {
  flex: 0 0 auto;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.page-faq .faq-tools__input {
  flex: 1;
  min-width: 0;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-primary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background 0.25s var(--ease-out);
}

.page-faq .faq-tools__input::placeholder {
  color: var(--color-muted);
}

.page-faq .faq-tools__input:focus {
  outline: none;
  background: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.18);
}

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

.page-faq .faq-tools .filter-btn {
  font-size: 0.86rem;
  font-weight: 600;
  padding: 8px 16px;
}

/* 分组通用 */
.page-faq .faq-group {
  padding: 56px 0;
}

.page-faq .faq-group--dark {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
}

.page-faq .faq-group--light {
  background: var(--color-bg);
  color: var(--color-primary);
}

.page-faq .faq-group__inner {
  display: grid;
  gap: 36px;
}

/* 分组头部 */
.page-faq .faq-group__head {
  position: relative;
}

.page-faq .faq-group__title {
  font-family: var(--font-head);
  font-size: 1.55rem;
  line-height: 1.2;
  margin: 14px 0 6px;
}

.page-faq .faq-group__desc {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 280px;
}

.page-faq .faq-group--dark .faq-group__desc {
  color: rgba(255, 255, 255, 0.58);
}

/* 分组内容网格 */
.page-faq .faq-group__body {
  display: grid;
  gap: 28px;
  min-width: 0;
}

/* 问答列表 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

/* 手风琴卡片 */
.page-faq .faq-item {
  background: var(--color-surface);
  border: 1px solid rgba(15, 27, 38, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.3s var(--ease-out);
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background 0.25s var(--ease-out);
}

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

.page-faq .faq-item__summary:hover {
  background: rgba(255, 107, 53, 0.04);
}

.page-faq .faq-item__num {
  flex: 0 0 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.82rem;
  color: #fff;
  background: var(--color-accent);
  border-radius: 10px 10px 10px 2px;
  transform: skew(-4deg);
}

.page-faq .faq-item:nth-child(even) .faq-item__num {
  background: var(--color-accent-green);
  color: var(--color-primary-dark);
}

.page-faq .faq-item__text {
  flex: 1;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.14);
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-item__body {
  padding: 4px 20px 20px;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--color-primary-light);
  border-top: 1px dashed rgba(107, 122, 140, 0.3);
}

.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(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* 浅色分组中的深色卡片 */
.page-faq .faq-group--light .faq-item {
  background: var(--color-primary);
  border-color: rgba(255, 255, 255, 0.1);
}

.page-faq .faq-group--light .faq-item__summary:hover {
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .faq-group--light .faq-item__text {
  color: #fff;
}

.page-faq .faq-group--light .faq-item__num {
  background: var(--color-accent);
  color: #fff;
}

.page-faq .faq-group--light .faq-item:nth-child(even) .faq-item__num {
  background: var(--color-accent-green);
  color: var(--color-primary-dark);
}

.page-faq .faq-group--light .faq-item__icon {
  background: rgba(198, 255, 0, 0.16);
}

.page-faq .faq-group--light .faq-item__icon::before,
.page-faq .faq-group--light .faq-item__icon::after {
  background: var(--color-accent-green);
}

.page-faq .faq-group--light .faq-item__body {
  color: rgba(255, 255, 255, 0.8);
  border-top-color: rgba(255, 255, 255, 0.14);
}

.page-faq .faq-group--light .faq-item__body a {
  color: var(--color-accent-green);
}

.page-faq .faq-group--light .faq-item__body a:hover {
  color: #fff;
}

/* 横图卡片 */
.page-faq .faq-group__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  min-width: 0;
}

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

.page-faq .faq-group__media figcaption {
  padding: 10px 16px 12px;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-muted);
}

.page-faq .faq-group--dark .faq-group__media figcaption {
  color: rgba(255, 255, 255, 0.62);
}

/* 底部引导 */
.page-faq .faq-more {
  position: relative;
  padding: 52px 0;
  background: var(--color-primary-dark);
  color: #fff;
  overflow: hidden;
}

.page-faq .faq-more::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent) 42%, var(--color-accent-green) 42%, var(--color-accent-green) 100%);
}

.page-faq .faq-more__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-faq .faq-more__title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  margin: 0 0 8px;
}

.page-faq .faq-more__desc {
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.75;
  max-width: 620px;
  margin: 0;
}

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

.page-faq .faq-more .btn--outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-more .btn--outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
}

/* 大屏布局 */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 72px 0 86px;
  }

  .page-faq .faq-group {
    padding: 72px 0;
  }

  .page-faq .faq-group__inner {
    grid-template-columns: minmax(220px, 0.75fr) minmax(0, 2.25fr);
    gap: 48px;
  }

  .page-faq .faq-group__body--media-left,
  .page-faq .faq-group__body--media-right {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-group__body--media-right {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-faq .faq-tools__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .faq-tools__search {
    flex: 0 0 360px;
  }

  .page-faq .faq-tools__filters {
    flex: 1;
    justify-content: flex-end;
  }

  .page-faq .faq-more__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .faq-more__actions {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__ticker-dot {
    animation: none;
  }
}