.page-faq {
  --faq-line-height: 1.85;
  --faq-panel-pad: 16px;
  background: var(--bg-00);
  color: var(--txt-body);
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--bg-00);
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border-thin);
}
.page-faq .faq-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.36;
  z-index: 0;
}
.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10, 14, 23, 0.92) 0%, rgba(10, 14, 23, 0.66) 55%, rgba(10, 14, 23, 0.94) 100%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  z-index: 1;
  background: linear-gradient(90deg, var(--accent-green) 0%, var(--accent-blue) 60%, transparent 100%);
  opacity: 0.7;
  pointer-events: none;
}
.page-faq .faq-hero .container {
  position: relative;
  z-index: 2;
}
.page-faq .faq-hero-content {
  max-width: 780px;
}
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--txt-mute);
  font-size: 13px;
}
.page-faq .breadcrumb a {
  color: var(--txt-mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.page-faq .breadcrumb a:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}
.page-faq .breadcrumb .crumb-current {
  color: var(--txt-strong);
}
.page-faq .faq-hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 72px);
  line-height: 0.95;
  color: var(--txt-strong);
  margin: 0;
  letter-spacing: -0.5px;
}
.page-faq .faq-hero-subtitle {
  color: var(--accent-green);
  font-weight: 600;
  font-size: 18px;
  margin-top: 14px;
}
.page-faq .faq-hero-lead {
  max-width: 640px;
  margin-top: 16px;
  color: var(--txt-body);
  font-size: 16px;
  line-height: var(--faq-line-height);
}

/* ===== 数字速览 ===== */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 760px;
  margin-top: 40px;
}
@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }
}
.page-faq .faq-stat {
  background: var(--bg-01);
  border: 1px solid var(--border-thin);
  border-left: 2px solid var(--accent-green);
  padding: 16px 14px;
  box-shadow: var(--shadow-soft);
}
.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1;
  color: var(--accent-green);
}
.page-faq .faq-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--txt-mute);
}

/* ===== 主布局 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  padding-top: 48px;
  padding-bottom: 96px;
}
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
    padding-top: 72px;
    padding-bottom: 120px;
  }
}

/* ===== 问题目录 ===== */
.page-faq .faq-index {
  min-width: 0;
}
.page-faq .faq-index-inner {
  position: relative;
  background: var(--bg-01);
  border: 1px solid var(--border-thin);
  padding: 22px 20px 20px;
}
.page-faq .faq-index-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-green));
}
@media (min-width: 960px) {
  .page-faq .faq-index-inner {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
}
.page-faq .faq-index-tag {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-blue);
  text-transform: uppercase;
}
.page-faq .faq-index-title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--txt-strong);
  margin: 0 0 18px;
}
.page-faq .faq-index-block {
  margin-bottom: 4px;
}
.page-faq .faq-index-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-top: 10px;
}
.page-faq .faq-index-row .no {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--accent-blue);
  flex: 0 0 auto;
}
.page-faq .faq-index-row a {
  color: var(--txt-strong);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.page-faq .faq-index-row a:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}
.page-faq .faq-index-list {
  list-style: none;
  margin: 6px 0 14px;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--border-thin);
}
.page-faq .faq-index-list li {
  position: relative;
  padding-left: 18px;
}
.page-faq .faq-index-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  opacity: 0.7;
  transform: translateY(-50%);
}
.page-faq .faq-index-list a {
  display: inline-block;
  padding: 3px 0;
  color: var(--txt-body);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, padding-left 0.2s;
}
.page-faq .faq-index-list a:hover {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
  padding-left: 4px;
}

/* ===== 快速定位标签 ===== */
.page-faq .faq-quicklook {
  margin-top: 18px;
}
.page-faq .faq-quicklook-title {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--txt-mute);
}
.page-faq .faq-quicklook-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-index-cta {
  margin-top: 20px;
}
.page-faq .faq-index-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ===== 答案区 ===== */
.page-faq .faq-content {
  min-width: 0;
}
.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group-head {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding-bottom: 16px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border-thin);
}
.page-faq .faq-group-head::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--accent-green);
}
.page-faq .faq-group-no {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 0.9;
  color: var(--accent-blue);
  opacity: 0.75;
  flex: 0 0 auto;
}
.page-faq .faq-group-title {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.1;
  color: var(--txt-strong);
  margin: 0;
}
.page-faq .faq-group-desc {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--txt-mute);
}

/* ===== 手风琴折叠项 ===== */
.page-faq .faq-items {
  display: block;
}
.page-faq .faq-item {
  background: var(--bg-01);
  border: 1px solid var(--border-thin);
  border-left: 3px solid var(--accent-blue);
  margin-bottom: 12px;
  scroll-margin-top: calc(var(--header-h) + 24px);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.2s, background 0.2s;
}
.page-faq .faq-item[open] {
  border-color: var(--border-blue);
  background: linear-gradient(180deg, var(--bg-01) 0%, var(--bg-02) 100%);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: var(--faq-panel-pad) 18px;
  list-style: none;
  cursor: pointer;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::marker {
  content: '';
  display: none;
}
.page-faq .faq-item .faq-item-id {
  flex: 0 0 40px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-02);
  color: var(--accent-green);
  font-family: var(--font-display);
  font-size: 15px;
  border: 1px solid var(--border-thin);
  transition: background 0.2s, border-color 0.2s;
}
.page-faq .faq-item[open] .faq-item-id {
  background: rgba(0, 230, 118, 0.14);
  border-color: var(--accent-green);
}
.page-faq .faq-item .faq-item-title {
  flex: 1;
  color: var(--txt-strong);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
}
.page-faq .faq-item .faq-item-toggle {
  flex: 0 0 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 22px;
  transition: color 0.2s;
}
.page-faq .faq-item .faq-item-toggle::before {
  content: '+';
  line-height: 1;
  transition: transform 0.25s;
}
.page-faq .faq-item[open] .faq-item-toggle::before {
  content: '−';
}

/* ===== 答案内容 ===== */
.page-faq .faq-answer {
  padding: 2px 18px 20px 68px;
  border-top: 1px solid var(--border-thin);
  background: linear-gradient(90deg, rgba(0, 176, 255, 0.08) 0%, rgba(0, 176, 255, 0) 44%);
  color: var(--txt-body);
  font-size: 15px;
  line-height: var(--faq-line-height);
}
.page-faq .faq-item[open] .faq-answer {
  animation: faq-fade-in 0.25s ease;
}
@keyframes faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-answer a:not(.btn) {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.page-faq .faq-answer a:not(.btn):hover {
  color: var(--accent-blue);
}
.page-faq .faq-answer .btn {
  margin-top: 14px;
}

/* ===== 数据面板配图 ===== */
.page-faq .faq-figure {
  margin: 8px 0 28px;
  max-width: 640px;
  background: var(--bg-01);
  border: 1px solid var(--border-thin);
  padding: 10px;
  box-shadow: var(--shadow-card);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--bg-02);
}
.page-faq .faq-figure figcaption {
  padding: 10px 4px 2px;
  color: var(--txt-mute);
  font-size: 13px;
  line-height: 1.5;
}

/* ===== 减少动效偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-answer {
    animation: none;
  }
  .page-faq .faq-item .faq-item-toggle::before {
    transition: none;
  }
  .page-faq .faq-index-list a,
  .page-faq .faq-index-row a,
  .page-faq .breadcrumb a {
    transition: none;
  }
}