.page-faq {
  --faq-rail-w: 288px;
  position: relative;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
  padding-bottom: 104px;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(245, 241, 232, 0.026) 0 1px,
    transparent 1px 4px
  );
}

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

.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--flame);
  border-color: var(--flame);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-top: 36px;
  padding-bottom: 8px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  left: 34%;
  width: 560px;
  height: 560px;
  max-width: 92vw;
  background: radial-gradient(circle, rgba(255, 90, 31, 0.18) 0%, rgba(255, 90, 31, 0) 68%);
  pointer-events: none;
}

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

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--flame);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--flame);
}

.page-faq .faq-title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-title em {
  display: block;
  font-style: normal;
  color: var(--flame);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.page-faq .faq-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
  padding: 9px 14px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-faq .stat-num {
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .stat-label {
  font-size: 12.5px;
  color: var(--mist);
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  border: 2px solid var(--line);
  background: var(--ink-panel);
  box-shadow: var(--shadow-hard);
  line-height: 0;
}

.page-faq .faq-hero-media::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 44px;
  height: 44px;
  background: var(--flame);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.08);
}

/* 分类索引 */
.page-faq .faq-index-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 56px;
}

.page-faq .faq-index-media {
  position: relative;
  margin: 0;
  min-height: 190px;
  border: 2px solid var(--line);
  background: var(--ink-panel);
  overflow: hidden;
}

.page-faq .faq-index-media img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.page-faq .faq-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .idx-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px 18px;
  background: var(--ink-panel);
  border: 2px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.page-faq .idx-card:hover,
.page-faq .idx-card:focus-visible {
  border-color: var(--flame);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.55);
  transform: translate(-2px, -2px);
}

.page-faq .idx-num {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--flame);
}

.page-faq .idx-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 900;
  line-height: 1.35;
}

.page-faq .idx-desc {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-more-link {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-more-link:hover,
.page-faq .faq-more-link:focus-visible {
  border-color: var(--flame);
  color: var(--flame);
}

/* 主体布局 */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 104px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.page-faq .group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .group-index {
  flex: none;
  padding: 2px 7px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--flame);
  border: 1px solid var(--flame);
}

.page-faq .group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4vw, 30px);
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .group-note {
  margin: 10px 0 18px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 折叠问答 */
.page-faq .qa {
  margin-bottom: 10px;
  background: var(--ink-panel);
  border: 2px solid var(--line);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .qa:hover {
  border-color: #3f3f3f;
}

.page-faq .qa[open] {
  border-color: var(--flame);
  box-shadow: inset 3px 0 0 var(--flame);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--paper);
}

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

.page-faq .qa summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--flame);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-faq .qa-body {
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.85;
  color: #d8d2c8;
}

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

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

.page-faq .faq-link {
  display: inline-block;
  margin-top: 4px;
  color: var(--cyan);
  font-size: 13.5px;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--paper);
}

.page-faq .fee-note {
  display: block;
  margin-top: 12px;
  padding: 10px 12px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 200, 87, 0.09);
  color: var(--amber);
  font-size: 13px;
  line-height: 1.7;
}

/* 侧栏 */
.page-faq .faq-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-faq .rail-card {
  padding: 18px 16px;
  background: var(--ink-panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-faq .rail-card--accent {
  border-color: var(--flame);
  background: linear-gradient(158deg, #2a1c13 0%, var(--ink-panel) 62%);
}

.page-faq .rail-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .rail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .rail-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  font-size: 13.5px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed rgba(46, 46, 46, 0.9);
  transition: color 0.18s ease;
}

.page-faq .rail-list li:last-child a {
  border-bottom: 0;
}

.page-faq .rail-list a:hover,
.page-faq .rail-list a:focus-visible {
  color: var(--flame);
}

.page-faq .rail-contact dl {
  margin: 0;
}

.page-faq .rail-contact dt {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .rail-contact dt:first-of-type {
  margin-top: 0;
}

.page-faq .rail-contact dd {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .rail-link {
  margin-top: 16px;
  font-size: 13px;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-index-media {
    min-height: 170px;
  }

  .page-faq .faq-index-wrap {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: stretch;
    gap: 18px;
  }

  .page-faq .faq-more {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 48px;
    align-items: center;
    padding-top: 52px;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail-w);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

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

  .page-faq .qa-body {
    padding: 15px 20px 20px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-index-wrap {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 22px;
  }

  .page-faq .faq-stat {
    padding: 10px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .idx-card,
  .page-faq .faq-more-link,
  .page-faq .rail-list a,
  .page-faq .qa {
    transition: none;
  }

  .page-faq .idx-card:hover,
  .page-faq .idx-card:focus-visible {
    transform: none;
  }
}
<<<END>>>