.page-faq {
  --faq-radius: 4px;
  --faq-node: rgba(56, 232, 255, 0.45);
  padding-bottom: 8px;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 18px 0 26px;
  border-bottom: 1px solid var(--hairline);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 56px);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-kicker {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--lime);
  text-transform: uppercase;
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 7.4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-faq .faq-title__hl {
  display: block;
  color: var(--lime);
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--sage);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 24px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-faq .faq-stat__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--sage);
}

/* ---------- 筛选 ---------- */
.page-faq .faq-filter {
  padding: 22px 0 18px;
}

.page-faq .faq-filter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin-bottom: 12px;
}

.page-faq .faq-filter__label {
  margin: 0;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--snow);
}

.page-faq .faq-filter__hint {
  margin: 0;
  font-size: 12px;
  color: var(--sage);
}

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

.page-faq .filter-btn {
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.2;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(56, 232, 255, 0.35);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .filter-btn:hover {
  border-color: var(--cyan);
  background: rgba(56, 232, 255, 0.1);
}

.page-faq .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.page-faq .filter-btn:focus-visible {
  outline: 2px solid var(--snow);
  outline-offset: 2px;
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 56px;
}

.page-faq .faq-main {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-faq [data-filter-item][hidden] {
  display: none;
}

/* ---------- 分类问题树 ---------- */
.page-faq .faq-cat {
  position: relative;
  padding: 18px 16px 12px;
  background: linear-gradient(180deg, var(--moss), rgba(14, 42, 32, 0.86));
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--lime);
  border-radius: var(--faq-radius);
  min-width: 0;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-cat__index {
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding: 2px 6px;
  border: 1px solid rgba(56, 232, 255, 0.4);
  border-radius: 2px;
  flex: none;
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-faq .faq-cat__lead {
  margin: 8px 0 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-tree {
  margin-top: 6px;
  border-left: 1px solid var(--faq-node);
  padding-left: 12px;
}

.page-faq .faq-q {
  border-bottom: 1px solid rgba(200, 255, 61, 0.1);
}

.page-faq .faq-q:last-child {
  border-bottom: none;
}

.page-faq .faq-q__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 12px 0 10px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1.2;
  color: var(--lime);
}

.page-faq .faq-q[open] > .faq-q__summary::after {
  content: "−";
}

.page-faq .faq-q__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-q__q {
  flex: 1 1 240px;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--snow);
}

.page-faq .faq-q[open] > .faq-q__summary .faq-q__q {
  color: var(--lime);
}

.page-faq .faq-q__digest {
  flex: 1 1 100%;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  opacity: 0.85;
}

.page-faq .faq-q__body {
  padding: 2px 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sage);
}

.page-faq .faq-q__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 图 ---------- */
.page-faq .faq-media {
  margin: 16px 0 6px;
  padding: 0;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hairline);
  border-radius: var(--faq-radius);
  background: var(--ink);
}

.page-faq .faq-media__caption {
  margin-top: 8px;
  font-family: var(--font-num);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 表格 ---------- */
.page-faq .faq-tablewrap {
  margin-top: 16px;
  overflow-x: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--faq-radius);
}

.page-faq .faq-table__caption {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--snow);
  background: rgba(56, 232, 255, 0.08);
}

.page-faq .data-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(200, 255, 61, 0.1);
  color: var(--sage);
}

.page-faq .data-table th {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--snow);
  background: rgba(7, 26, 20, 0.6);
  white-space: nowrap;
}

.page-faq .data-table tbody tr:nth-child(even) {
  background: rgba(7, 26, 20, 0.35);
}

.page-faq .data-table tbody tr:hover {
  background: rgba(200, 255, 61, 0.08);
}

.page-faq .data-table .num {
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--lime);
  white-space: nowrap;
}

/* ---------- 客服提示 ---------- */
.page-faq .faq-help {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--faq-radius);
  border: 1px solid rgba(56, 232, 255, 0.28);
}

.page-faq .faq-help__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .faq-help__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

.page-faq .faq-help__desc a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq .faq-help__mail {
  margin: 12px 0;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
  word-break: break-all;
}

.page-faq .faq-help .btn {
  display: inline-block;
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-aside {
  display: grid;
  gap: 18px;
  align-content: start;
  min-width: 0;
}

.page-faq .faq-steps {
  padding: 18px 16px;
  background: var(--moss);
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--lime);
  border-radius: var(--faq-radius);
}

.page-faq .faq-steps__kicker {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .faq-steps__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--snow);
}

.page-faq .faq-steps__lead {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

.page-faq .faq-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 44px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: -16px;
  width: 1px;
  background: linear-gradient(180deg, var(--lime), rgba(200, 255, 61, 0));
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--lime);
}

.page-faq .faq-step__name {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 12.8px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-steps__link {
  display: inline-block;
  margin-top: 14px;
}

.page-faq .faq-side-note {
  padding: 16px;
  background: rgba(7, 26, 20, 0.55);
  border: 1px dashed rgba(200, 255, 61, 0.24);
  border-radius: var(--faq-radius);
}

.page-faq .faq-side-note__kicker {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--violet);
}

.page-faq .faq-side-note__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-jump a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-size: 13px;
  color: var(--sage);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.08);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-jump .num {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-side-note__text {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-side-note__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 26px 0 32px;
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-stat__num {
    font-size: 30px;
  }

  .page-faq .faq-cat {
    padding: 22px 22px 14px;
  }

  .page-faq .faq-cat__title {
    font-size: 22px;
  }

  .page-faq .faq-q__q {
    font-size: 15.5px;
  }

  .page-faq .faq-q__body {
    font-size: 14.5px;
  }

  .page-faq .faq-help {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 20px;
    padding: 18px 20px;
  }

  .page-faq .faq-help__text {
    flex: 1 1 340px;
  }

  .page-faq .faq-help__mail {
    margin: 0;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 332px;
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-filter {
    padding: 26px 0 22px;
  }

  .page-faq .faq-main {
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>