.page-faq {
  --faq-cut: 18px;
  --faq-index-top: 112px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 22px 0 0;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--fog);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line-dash);
}

.page-faq .breadcrumb-link {
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--line-strong);
}

.page-faq .breadcrumb-current {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 44px 0 52px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-faq .faq-hero-copy .display {
  margin: 14px 0 18px;
  font-size: clamp(32px, 8.2vw, 66px);
}

.page-faq .faq-hero-copy .lede {
  max-width: 58ch;
  color: var(--paper);
  opacity: 0.86;
}

.page-faq .faq-hero-actions {
  margin-top: 26px;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line-dash);
  font-size: 13px;
  color: var(--fog);
}

.page-faq .faq-hero-meta .mono {
  color: var(--lime);
  font-size: 15px;
  margin-right: 4px;
}

/* 首屏纯 CSS 视觉体 */
.page-faq .faq-hero-visual {
  position: relative;
  min-height: 240px;
  aspect-ratio: 5 / 4;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 72% 24%, rgba(184, 255, 61, 0.16), transparent 58%),
    linear-gradient(155deg, var(--pine) 0%, var(--ink) 78%);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
  overflow: hidden;
}

.page-faq .faq-viz-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(242, 245, 241, 0.2) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.75;
  -webkit-mask-image: radial-gradient(ellipse at 70% 32%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse at 70% 32%, #000 0%, transparent 78%);
}

.page-faq .faq-viz-trail {
  position: absolute;
  height: 2px;
  opacity: 0.9;
  transform-origin: left center;
}

.page-faq .faq-viz-trail--a {
  width: 64%;
  left: 6%;
  top: 38%;
  transform: rotate(-15deg);
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
}

.page-faq .faq-viz-trail--b {
  width: 46%;
  left: 34%;
  top: 70%;
  transform: rotate(12deg);
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
}

.page-faq .faq-viz-node {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--lime);
  animation: faqPulse 2.6s var(--ease) infinite;
}

.page-faq .faq-viz-node--a { left: 42%; top: 28%; }
.page-faq .faq-viz-node--b { left: 68%; top: 62%; background: var(--blue); animation-delay: 0.6s; }
.page-faq .faq-viz-node--c { left: 20%; top: 74%; background: var(--orange); animation-delay: 1.2s; }

.page-faq .faq-viz-tag {
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(10, 13, 12, 0.74);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.page-faq .faq-viz-tag-num {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--lime);
}

.page-faq .faq-viz-tag-txt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fog);
}

@keyframes faqPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(184, 255, 61, 0.18); }
  50% { box-shadow: 0 0 0 11px rgba(184, 255, 61, 0.03); }
}

/* ---------- 通栏图带 ---------- */
.page-faq .faq-band {
  position: relative;
  margin: 0;
  overflow: hidden;
}

.page-faq .faq-band img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

.page-faq .faq-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 13, 12, 0.62) 0%, rgba(10, 13, 12, 0) 38%, rgba(10, 13, 12, 0.82) 100%);
}

.page-faq .faq-band-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--paper);
  opacity: 0.82;
}

/* ---------- 分类索引条 ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-index-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .faq-index-item:hover,
.page-faq .faq-index-item:focus-visible {
  background: rgba(184, 255, 61, 0.09);
  border-color: var(--line-strong);
  color: var(--lime);
}

.page-faq .faq-index-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-index-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-index-count {
  font-size: 11px;
  color: var(--fog);
}

.page-faq .faq-index-item:hover .faq-index-count,
.page-faq .faq-index-item:focus-visible .faq-index-count {
  color: var(--lime);
}

/* ---------- 分类内容 ---------- */
.page-faq .faq-cats {
  padding: 56px 0 8px;
}

.page-faq .faq-cats-head {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-faq .faq-cats-head .h2 {
  margin: 0 0 12px;
}

.page-faq .faq-cat {
  padding: 30px 0 34px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--faq-index-top) + 86px);
}

.page-faq .faq-cat:first-of-type {
  border-top: 0;
  padding-top: 8px;
}

.page-faq .faq-cat-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  margin-bottom: 18px;
}

.page-faq .faq-cat-num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .faq-cat-title {
  margin: 0;
  font-size: clamp(20px, 3.6vw, 28px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-cat-meta {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-cat-count {
  color: var(--orange);
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* ---------- 折叠组 ---------- */
.page-faq .accordion {
  display: block;
}

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

.page-faq .acc-head {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  width: 100%;
  padding: 18px 0 18px 18px;
  margin: 0;
  background: none;
  border: 0;
  color: var(--paper);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color 0.22s var(--ease);
}

.page-faq .acc-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.22s var(--ease);
}

.page-faq .acc-head[aria-expanded="true"]::before {
  transform: scaleY(1);
}

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

.page-faq .acc-head:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .acc-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fog);
  min-width: 22px;
}

.page-faq .acc-head[aria-expanded="true"] .acc-num {
  color: var(--lime);
}

.page-faq .acc-title {
  font-size: clamp(15px, 2.4vw, 17px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.55;
}

.page-faq .acc-icon {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  flex: none;
  border: 1px solid var(--line-dash);
  border-radius: 50%;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .acc-icon::before,
.page-faq .acc-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--paper);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .acc-icon::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .acc-icon::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .acc-head[aria-expanded="true"] .acc-icon {
  background: var(--lime);
  border-color: var(--lime);
}

.page-faq .acc-head[aria-expanded="true"] .acc-icon::before,
.page-faq .acc-head[aria-expanded="true"] .acc-icon::after {
  background: var(--ink);
}

.page-faq .acc-head[aria-expanded="true"] .acc-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .acc-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.22s var(--ease);
}

.page-faq .acc-head[aria-expanded="true"] + .acc-body {
  grid-template-rows: 1fr;
}

.page-faq .acc-inner {
  overflow: hidden;
  padding-left: 36px;
}

.page-faq .acc-head[aria-expanded="true"] + .acc-body .acc-inner {
  padding-bottom: 22px;
}

.page-faq .acc-inner p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-mini-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
  max-width: 66ch;
}

.page-faq .faq-mini-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-mini-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lime);
  line-height: 2.1;
}

/* ---------- 换设备 ---------- */
.page-faq .faq-switch {
  margin-top: 56px;
  padding: 60px 0 68px;
  background: linear-gradient(180deg, var(--pine) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-switch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-faq .faq-switch-copy .h2 {
  margin: 12px 0 16px;
}

.page-faq .faq-switch-copy .prose {
  max-width: 60ch;
  color: var(--paper);
  opacity: 0.86;
}

.page-faq .faq-steps {
  display: grid;
  gap: 20px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-faq .faq-step-num {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  background: var(--lime);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.page-faq .faq-step-body .h3 {
  margin: 4px 0 6px;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fog);
}

.page-faq .faq-switch-btn {
  margin-top: 30px;
}

.page-faq .faq-switch-media {
  margin: 0;
  position: relative;
}

.page-faq .faq-switch-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

/* ---------- 反馈路径 ---------- */
.page-faq .faq-route {
  padding: 64px 0 68px;
  background: var(--wine);
  color: var(--wine-text);
}

.page-faq .faq-route .eyebrow {
  color: var(--wine-text);
}

.page-faq .faq-route .h2 {
  color: var(--wine-text);
  margin: 12px 0 14px;
}

.page-faq .faq-route-lede {
  max-width: 62ch;
  margin: 0;
  color: var(--wine-text);
  opacity: 0.88;
}

.page-faq .faq-route-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-route-item {
  padding-top: 20px;
  border-top: 1px dashed rgba(247, 233, 236, 0.35);
}

.page-faq .faq-route-num {
  display: block;
  font-size: clamp(36px, 6.4vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(184, 255, 61, 0.32);
}

.page-faq .faq-route-item .h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--wine-text);
}

.page-faq .faq-route-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--wine-text);
  opacity: 0.86;
}

/* ---------- 底部转接 ---------- */
.page-faq .faq-cta {
  padding: 56px 0 88px;
}

.page-faq .faq-cta-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
  padding: 34px 26px;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-faq .faq-cta-copy .h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 4vw, 34px);
}

.page-faq .faq-cta-copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.86;
}

.page-faq .faq-cta-actions {
  margin: 0;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 56px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-index-top);
    z-index: 30;
    backdrop-filter: blur(10px);
  }

  .page-faq .faq-band-cap {
    bottom: 26px;
  }

  .page-faq .faq-cats {
    padding-top: 72px;
  }

  .page-faq .faq-cat {
    padding: 40px 0 44px;
  }

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

  .page-faq .faq-cat-meta {
    grid-column: 2;
    justify-content: flex-start;
  }

  .page-faq .faq-switch {
    margin-top: 72px;
    padding: 78px 0 84px;
  }

  .page-faq .faq-switch-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 60px;
  }

  .page-faq .faq-route {
    padding: 80px 0 84px;
  }

  .page-faq .faq-route-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-cta {
    padding: 72px 0 104px;
  }

  .page-faq .faq-cta-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
    padding: 48px 46px;
  }
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-switch-copy .faq-steps {
    gap: 22px;
  }

  .page-faq .faq-route-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 26px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-viz-node {
    animation: none;
  }

  .page-faq .acc-body,
  .page-faq .acc-head::before,
  .page-faq .acc-icon,
  .page-faq .acc-icon::before,
  .page-faq .acc-icon::after,
  .page-faq .faq-index-item {
    transition: none;
  }
}
<<<END>>>