.page-faq {
  --faq-rail-w: 236px;
  --faq-hair: rgba(126, 167, 155, 0.22);
  --faq-hair-strong: rgba(56, 242, 208, 0.42);
  --faq-mono: 12px;
}

.page-faq .faq-crumb-wrap {
  padding-top: var(--space-3);
  padding-bottom: var(--space-2);
  background: var(--ink-900);
}

.page-faq .faq-crumb-sep {
  margin: 0 8px;
  color: var(--slate);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-4) 0 var(--space-6);
  background:
    radial-gradient(115% 85% at 92% -10%, rgba(56, 242, 208, 0.16), transparent 62%),
    linear-gradient(162deg, var(--ink-800) 0%, var(--ink-900) 72%);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -58%;
  width: 78%;
  height: 340px;
  background: linear-gradient(104deg, rgba(5, 46, 43, 0.92), rgba(18, 55, 46, 0.18));
  transform: skewY(-7deg);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 96px;
  background: linear-gradient(180deg, var(--mint), transparent);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

.page-faq .faq-hero-copy .eyebrow {
  color: var(--mint);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero h1 {
  margin: var(--space-2) 0 var(--space-3);
  max-width: 620px;
  font-family: var(--font-display);
  font-size: clamp(27px, 4.6vw, 44px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-faq .faq-hero .lead {
  max-width: 56ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--slate);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-3);
}

.page-faq .faq-quick-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick-index a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--faq-hair);
  border-radius: 999px;
  background: rgba(18, 55, 46, 0.55);
  color: var(--fog);
  font-size: 13.5px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.page-faq .faq-quick-index a:hover,
.page-faq .faq-quick-index a:focus-visible {
  border-color: var(--faq-hair-strong);
  background: rgba(56, 242, 208, 0.12);
  transform: translateY(-1px);
}

.page-faq .faq-quick-index .mono {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-faq .faq-hero-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  background: var(--ink-700);
  box-shadow: 0 22px 44px -28px rgba(0, 0, 0, 0.9);
}

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

.page-faq .faq-hero-visual .media-caption {
  padding: 10px 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: var(--space-5) 0 var(--space-6);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 42%, var(--ink-900) 100%);
}

.page-faq .faq-grid {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

.page-faq .faq-rail-sticky {
  display: grid;
  gap: var(--space-3);
}

.page-faq .faq-rail-block {
  padding: 14px 16px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: rgba(11, 31, 26, 0.72);
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-toc {
  display: grid;
  gap: 2px;
  border-left: 2px solid var(--faq-hair);
  padding-left: 12px;
}

.page-faq .faq-toc a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  padding-left: 4px;
  color: var(--mint);
}

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

.page-faq .filter-bar .filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: 999px;
  background: transparent;
  color: var(--slate);
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.5;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .filter-bar .filter-btn:hover {
  border-color: var(--faq-hair-strong);
  color: var(--fog);
}

.page-faq .filter-bar .filter-btn.is-active {
  border-color: var(--mint);
  background: var(--mint);
  color: #07110e;
  font-weight: 600;
}

/* ---------- 分类与问答 ---------- */
.page-faq .faq-group {
  margin-bottom: var(--space-5);
  scroll-margin-top: 92px;
}

.page-faq .faq-group:last-of-type {
  margin-bottom: var(--space-4);
}

.page-faq .faq-group-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 var(--space-3);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-hair);
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fog);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-group-title .mono {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.page-faq .faq-group:target .faq-group-title {
  border-bottom-color: var(--faq-hair-strong);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(18, 55, 46, 0.86), rgba(11, 31, 26, 0.92));
  transition: border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--faq-hair-strong);
  background: linear-gradient(180deg, rgba(18, 55, 46, 0.96), rgba(5, 46, 43, 0.92));
  box-shadow: inset 3px 0 0 var(--mint);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--fog);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.1;
  color: var(--mint);
}

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

.page-faq .faq-item > summary:hover {
  color: var(--mint);
}

.page-faq .faq-item-num {
  flex: none;
  padding-top: 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-faq .faq-item-q {
  min-width: 0;
}

.page-faq .faq-answer {
  padding: 0 18px 18px 41px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--slate);
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

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

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact-wrap {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.page-faq .faq-contact-card {
  display: grid;
  gap: 6px;
  justify-items: start;
  padding: var(--space-3);
  border: 1px solid var(--faq-hair-strong);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(5, 46, 43, 0.96), rgba(11, 31, 26, 0.9));
}

.page-faq .faq-contact-label {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-contact-value {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--fog);
  word-break: break-all;
}

.page-faq .faq-contact-note {
  margin: 6px 0 12px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-help-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: var(--ink-700);
}

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

/* ---------- 延伸入口 ---------- */
.page-faq .faq-more {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px dashed var(--faq-hair);
  border-radius: var(--radius-md);
  background: rgba(5, 46, 43, 0.42);
}

.page-faq .faq-more-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-quick-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: var(--space-5);
  }

  .page-faq .faq-hero {
    padding-top: var(--space-5);
  }

  .page-faq .faq-contact-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--space-5);
  }

  .page-faq .faq-rail-sticky {
    position: sticky;
    top: var(--space-4);
  }

  .page-faq .faq-more {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-item > summary {
    font-size: 15.5px;
    padding: 17px 20px;
  }

  .page-faq .faq-answer {
    padding: 0 20px 20px 43px;
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick-index a,
  .page-faq .filter-bar .filter-btn,
  .page-faq .faq-toc a,
  .page-faq .faq-item,
  .page-faq .faq-group-title {
    transition: none;
  }

  .page-faq .faq-quick-index a:hover {
    transform: none;
  }
}
<<<END>>>