.page-faq {
  --faq-gutter: 20px;
  --faq-section-y: 64px;
  --faq-accent-line: 3px;
  background: var(--bx-ink);
  color: var(--bx-mint);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 108px 0 56px;
  background: var(--bx-ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: 62%;
  height: 136%;
  background: var(--bx-layer);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--bx-line);
}

.page-faq .faq-hero .breadcrumb {
  position: relative;
  z-index: 2;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--bx-gray);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--bx-gray);
  text-decoration: none;
}

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

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

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

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-size: clamp(29px, 7.2vw, 52px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--bx-mint);
}

.page-faq .faq-hero .lead {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--bx-dim);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 40px;
  background: var(--bx-line);
  border: 1px solid var(--bx-line);
}

.page-faq .faq-hero-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px;
  background: var(--bx-ink);
}

.page-faq .faq-hero-stats .stat-value {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--bx-orange);
}

.page-faq .faq-hero-stats .stat-label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--bx-gray);
}

/* 首屏右侧目录 */

.page-faq .faq-toc {
  border-top: 1px solid var(--bx-line);
  padding-top: 18px;
}

.page-faq .faq-toc-title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bx-cyan);
}

.page-faq .faq-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc-link {
  display: block;
  padding: 9px 14px;
  border: 1px solid var(--bx-line);
  color: var(--bx-dim);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--bx-ease), border-color 0.18s var(--bx-ease);
}

.page-faq .faq-toc-link:hover {
  color: var(--bx-cyan);
  border-color: var(--bx-cyan);
}

.page-faq .faq-toc-link[aria-current="true"] {
  color: var(--bx-cyan);
  border-color: var(--bx-cyan);
}

/* ---------- 章节通用 ---------- */

.page-faq .section {
  padding: var(--faq-section-y) 0;
}

.page-faq .chapter-head {
  border-top: 1px solid var(--bx-line);
  padding-top: 20px;
}

.page-faq .chapter-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--bx-cyan);
}

.page-faq .chapter-title {
  margin: 6px 0 0;
  font-size: clamp(22px, 4.6vw, 32px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--bx-mint);
}

.page-faq .chapter-body {
  margin: 18px 0 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--bx-dim);
}

/* ---------- 01 四步流程 ---------- */

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  background: var(--bx-line);
  border: 1px solid var(--bx-line);
}

.page-faq .faq-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 18px 24px;
  background: var(--bx-ink);
}

.page-faq .faq-step::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: var(--faq-accent-line);
  height: 34px;
  background: var(--bx-cyan);
  opacity: 0.5;
}

.page-faq .faq-step-num {
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: var(--bx-layer);
  letter-spacing: -0.02em;
}

.page-faq .faq-step-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--bx-mint);
}

.page-faq .faq-step-text {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--bx-dim);
}

.page-faq .faq-step-tag {
  display: inline-block;
  align-self: flex-start;
  margin-top: 4px;
  padding: 5px 9px;
  background: rgba(47, 227, 180, 0.08);
  border-left: 2px solid var(--bx-moss);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--bx-cyan);
}

/* ---------- 图片框 ---------- */

.page-faq .faq-figure {
  margin: 32px 0 0;
  border: 1px solid var(--bx-line);
  background: var(--bx-ink-deep);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.05);
}

.page-faq .faq-figure .media-frame__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--bx-line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--bx-gray);
}

/* ---------- 02-06 问答分组 ---------- */

.page-faq .faq-group--layer {
  background: var(--bx-ink-deep);
}

.page-faq .faq-list {
  margin-top: 30px;
  border-top: 1px solid var(--bx-line);
}

.page-faq .faq-list--tight {
  margin-top: 28px;
}

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

.page-faq .faq-handle {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 19px 0 19px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--bx-mint);
  transition: background 0.16s var(--bx-ease);
}

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

.page-faq .faq-handle::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  bottom: 19px;
  width: var(--faq-accent-line);
  background: var(--bx-line);
  transition: background 0.18s var(--bx-ease);
}

.page-faq .faq-item[open] > .faq-handle::before {
  background: var(--bx-cyan);
}

.page-faq .faq-handle:hover {
  background: rgba(47, 227, 180, 0.04);
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-chev {
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin-top: 6px;
  border-right: 2px solid var(--bx-cyan);
  border-bottom: 2px solid var(--bx-cyan);
  transform: rotate(45deg);
  transition: transform 0.2s var(--bx-ease);
}

.page-faq .faq-item[open] .faq-chev {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .faq-answer {
  padding: 0 0 22px 21px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--bx-dim);
}

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

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

/* ---------- 03 字段表 ---------- */

.page-faq .faq-stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 32px;
}

.page-faq .faq-terms-wrap {
  overflow-x: auto;
  border: 1px solid var(--bx-line);
  background: var(--bx-ink);
}

.page-faq .faq-terms {
  width: 100%;
  min-width: 440px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-terms-cap {
  padding: 13px 14px;
  border-bottom: 1px solid var(--bx-line);
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bx-cyan);
}

.page-faq .faq-terms th,
.page-faq .faq-terms td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--bx-line);
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  color: var(--bx-dim);
}

.page-faq .faq-terms thead th {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bx-gray);
  font-weight: 700;
}

.page-faq .faq-terms tbody th {
  color: var(--bx-mint);
  font-weight: 700;
  white-space: nowrap;
}

.page-faq .faq-terms tbody td.num {
  color: var(--bx-orange);
  white-space: nowrap;
}

.page-faq .faq-terms tbody tr:last-child th,
.page-faq .faq-terms tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-terms tbody tr {
  transition: background 0.16s var(--bx-ease);
}

.page-faq .faq-terms tbody tr:hover {
  background: rgba(47, 227, 180, 0.05);
}

.page-faq .faq-stats-grid .faq-figure {
  margin: 0;
  align-self: start;
}

/* ---------- 07 联系 ---------- */

.page-faq .faq-contact {
  background: var(--bx-layer);
  border-top: 1px solid var(--bx-line);
}

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

.page-faq .faq-contact-copy .chapter-head {
  border-top-color: var(--bx-moss);
}

.page-faq .faq-contact-copy h2 {
  margin: 6px 0 0;
  font-size: clamp(22px, 4.6vw, 30px);
  font-weight: 800;
  line-height: 1.24;
  color: var(--bx-mint);
}

.page-faq .faq-contact-copy p {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--bx-dim);
}

.page-faq .faq-contact-hint {
  padding-left: 14px;
  border-left: 2px solid var(--bx-orange);
  color: var(--bx-mint);
}

.page-faq .faq-contact-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--bx-line);
  background: var(--bx-ink);
}

.page-faq .faq-meta {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px 14px;
  margin: 0;
}

.page-faq .faq-meta dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bx-gray);
  padding-top: 3px;
}

.page-faq .faq-meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--bx-mint);
  overflow-wrap: anywhere;
}

.page-faq .faq-meta dd.num {
  color: var(--bx-orange);
}

.page-faq .faq-contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--bx-line);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-card {
    padding: 26px 24px 28px;
  }
}

@media (min-width: 900px) {
  .page-faq {
    --faq-section-y: 88px;
  }

  .page-faq .faq-hero {
    padding: 132px 0 72px;
  }

  .page-faq .faq-stats-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
    gap: 32px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(240px, 0.75fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-toc {
    padding-top: 22px;
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc-link {
    padding: 8px 0 8px 14px;
    border: 0;
    border-left: 2px solid var(--bx-line);
    white-space: normal;
  }

  .page-faq .faq-toc-link:hover,
  .page-faq .faq-toc-link[aria-current="true"] {
    border-left-color: var(--bx-cyan);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-step {
    min-height: 232px;
  }

  .page-faq .faq-handle {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chev,
  .page-faq .faq-handle,
  .page-faq .faq-toc-link,
  .page-faq .faq-terms tbody tr {
    transition: none;
  }
}
<<<END>>>