.page-faq {
  --faq-meta-gap: 12px;
  background: transparent;
}

.page-faq .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumb {
  padding: 28px 0 0;
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
}

.page-faq .breadcrumb a {
  color: var(--bx-text-dim);
  text-decoration: none;
  transition: color var(--bx-trans);
}

.page-faq .breadcrumb a:hover {
  color: var(--bx-green);
}

.page-faq .breadcrumb-sep {
  color: var(--bx-line);
  margin: 0 8px;
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--bx-text);
}

/* ===== 首部区域 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 64px 0 48px;
  background:
    radial-gradient(ellipse at 85% -10%, rgba(0, 255, 157, 0.07), transparent 60%),
    radial-gradient(ellipse at 10% 110%, rgba(255, 107, 0, 0.05), transparent 55%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(30, 58, 95, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, 0.18) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

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

.page-faq .faq-kicker {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-green);
  letter-spacing: 0.1em;
  margin: 0 0 16px;
}

.page-faq .faq-hero h1 {
  font-family: var(--bx-font-title);
  font-size: clamp(2.1rem, 5.5vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--bx-text);
  margin: 0 0 20px;
  max-width: 720px;
}

.page-faq .faq-hero-desc {
  color: var(--bx-text-dim);
  font-size: var(--bx-size-body);
  line-height: 1.8;
  max-width: 640px;
  margin: 0;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 48px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-stat-num {
  font-family: var(--bx-font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--bx-green);
  display: block;
  line-height: 1.2;
}

.page-faq .faq-stat-label {
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
  margin-top: 4px;
  display: block;
}

/* ===== 索引条 ===== */
.page-faq .faq-index {
  border-top: 1px solid var(--bx-line);
  border-bottom: 1px solid var(--bx-line);
  background: rgba(2, 12, 27, 0.5);
  padding: 20px 0;
  overflow-x: auto;
}

.page-faq .faq-index-title {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-orange);
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  min-width: max-content;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border: 1px solid var(--bx-line);
  color: var(--bx-text);
  text-decoration: none;
  font-size: var(--bx-size-body);
  white-space: nowrap;
  transition:
    border-color var(--bx-trans),
    color var(--bx-trans),
    background var(--bx-trans);
}

.page-faq .faq-index-list a:hover {
  border-color: rgba(0, 255, 157, 0.45);
  color: var(--bx-green);
  background: rgba(0, 255, 157, 0.05);
}

.page-faq .faq-index-list a:focus-visible {
  outline: 2px solid var(--bx-green);
  outline-offset: 2px;
}

.page-faq .faq-index-code {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
  transition: color var(--bx-trans);
}

.page-faq .faq-index-list a:hover .faq-index-code {
  color: var(--bx-green);
}

/* ===== 章节骨架 ===== */
.page-faq .faq-section {
  padding: 72px 0;
}

.page-faq .faq-section--tint {
  background: rgba(17, 34, 64, 0.32);
  border-top: 1px solid var(--bx-line);
  border-bottom: 1px solid var(--bx-line);
}

.page-faq .faq-section-grid {
  display: grid;
  gap: 40px;
}

.page-faq .faq-section-head .faq-section-index {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-orange);
  display: block;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}

.page-faq .faq-section-head h2 {
  font-family: var(--bx-font-title);
  font-size: var(--bx-size-h2);
  font-weight: 900;
  color: var(--bx-text);
  margin: 0 0 12px;
  line-height: 1.3;
}

.page-faq .faq-section-desc {
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
  line-height: 1.8;
  margin: 0;
}

/* ===== 问题列表 ===== */
.page-faq .faq-list {
  border-left: 1px solid var(--bx-line);
  padding-left: 20px;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--bx-line);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 8px;
  transition: background var(--bx-trans);
}

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

.page-faq .faq-item summary:hover {
  background: rgba(17, 34, 64, 0.35);
}

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

.page-faq .faq-item-num {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
  flex-shrink: 0;
  transition: color var(--bx-trans);
}

.page-faq .faq-item-title {
  font-weight: 700;
  color: var(--bx-text);
  line-height: 1.5;
  transition: color var(--bx-trans);
}

.page-faq .faq-item summary:hover .faq-item-num,
.page-faq .faq-item summary:hover .faq-item-title,
.page-faq .faq-item[open] .faq-item-num {
  color: var(--bx-green);
}

.page-faq .faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bx-line);
  color: var(--bx-green);
  font-family: var(--bx-font-mono);
  font-size: 1.1rem;
  line-height: 1;
  transition:
    transform var(--bx-trans),
    border-color var(--bx-trans),
    background var(--bx-trans);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  border-color: var(--bx-green);
  background: rgba(0, 255, 157, 0.08);
}

.page-faq .faq-answer {
  padding: 4px 8px 28px 40px;
  color: var(--bx-text-dim);
  line-height: 1.85;
  font-size: var(--bx-size-body);
}

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

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

.page-faq .faq-answer a {
  color: var(--bx-green);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(0, 255, 157, 0.35);
  transition: text-decoration-color var(--bx-trans);
}

.page-faq .faq-answer a:hover {
  text-decoration-color: var(--bx-green);
}

/* ===== 图片与说明 ===== */
.page-faq .faq-figure {
  margin: 40px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--bx-line);
}

.page-faq .faq-figcaption {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
  padding-top: 12px;
  letter-spacing: 0.04em;
}

/* ===== 数据统计块 ===== */
.page-faq .faq-data-stats {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-data-stats .stat-grid {
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-faq .faq-data-stats .stat-item {
  background: rgba(17, 34, 64, 0.55);
  border-left: 2px solid var(--bx-green);
  padding: 20px;
}

.page-faq .faq-data-stats .stat-value {
  font-family: var(--bx-font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--bx-green);
  display: block;
  margin-bottom: 6px;
}

.page-faq .faq-data-stats .stat-label {
  font-size: var(--bx-size-sm);
  color: var(--bx-text-dim);
}

/* ===== 帮助文档面板 ===== */
.page-faq .faq-help-panel {
  display: grid;
  gap: 24px;
  margin-top: 40px;
  padding: 32px;
  background: rgba(17, 34, 64, 0.45);
  border: 1px solid var(--bx-line);
}

.page-faq .faq-help-panel img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--bx-line);
}

.page-faq .faq-help-text-title {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-h3);
  font-weight: 700;
  color: var(--bx-green);
  margin: 0 0 12px;
}

.page-faq .faq-help-text-desc {
  color: var(--bx-text-dim);
  line-height: 1.85;
  margin: 0;
}

/* ===== 底部协助区域 ===== */
.page-faq .faq-contact-cta {
  padding: 64px 0;
  background: rgba(2, 12, 27, 0.75);
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-contact-cta-inner {
  display: grid;
  gap: 32px;
  justify-items: start;
}

.page-faq .faq-contact-kicker {
  font-family: var(--bx-font-mono);
  font-size: var(--bx-size-sm);
  color: var(--bx-orange);
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-contact-text h2 {
  font-family: var(--bx-font-title);
  font-size: var(--bx-size-h2);
  font-weight: 900;
  color: var(--bx-text);
  margin: 0 0 12px;
}

.page-faq .faq-contact-text p:last-child {
  color: var(--bx-text-dim);
  line-height: 1.85;
  margin: 0;
  max-width: 640px;
}

.page-faq .faq-contact-text a {
  color: var(--bx-green);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-contact-cta .btn-lg {
  min-width: 180px;
  justify-content: center;
}

/* ===== 桌面端增强 ===== */
@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding: 88px 0 64px;
  }

  .page-faq .faq-hero h1 {
    max-width: 780px;
  }

  .page-faq .faq-stats-row {
    gap: 56px;
  }

  .page-faq .faq-section-grid {
    grid-template-columns: 280px 1fr;
    gap: 72px;
  }

  .page-faq .faq-section-head {
    position: sticky;
    top: 92px;
    align-self: start;
    padding-top: 4px;
  }

  .page-faq .faq-list {
    padding-left: 32px;
  }

  .page-faq .faq-help-panel {
    grid-template-columns: 320px 1fr;
    gap: 40px;
    align-items: center;
  }

  .page-faq .faq-contact-cta-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 48px;
    justify-items: start;
  }

  .page-faq .faq-figure--flow img {
    max-height: 480px;
  }
}

@media (min-width: 640px) {
  .page-faq .faq-data-stats .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-hero-meta {
    gap: 24px 56px;
  }
}