.page-faq {
  --faq-rail: 200px;
  --faq-gap: clamp(16px, 2.6vw, 28px);
  --faq-pad: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(40px, 8vw, 90px);
  color: var(--mist);
}

.page-faq__crumbs {
  padding-top: clamp(16px, 3vw, 26px);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-faq__crumbs .crumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-faq__crumbs .crumbs a:hover {
  color: var(--cyan);
}

.page-faq__hero {
  position: relative;
  max-width: 780px;
  padding: clamp(24px, 4.6vw, 52px) 0 clamp(18px, 3vw, 30px);
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -30%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 107, 255, 0.18), transparent 68%);
  pointer-events: none;
  z-index: -1;
}

.page-faq__hero .display {
  margin: 12px 0 0;
}

.page-faq__hero .lede {
  margin-top: 14px;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  max-width: 640px;
}

.page-faq__quick {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(8px, 2vw, 18px);
}

.page-faq__rail {
  min-width: 0;
}

.page-faq__toc {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 2px 0 10px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq__toc-title {
  display: none;
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq__toc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 9px 13px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq__toc-link:hover {
  color: var(--mist);
  border-color: var(--line);
}

.page-faq__toc-link[aria-current="true"],
.page-faq__toc-link.is-active {
  color: var(--mist);
  border-color: var(--cyan);
  background: rgba(51, 225, 203, 0.08);
  box-shadow: 0 0 12px rgba(51, 225, 203, 0.18);
}

.page-faq__toc-num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq__flow {
  min-width: 0;
}

.page-faq__panel {
  position: relative;
  margin-bottom: var(--faq-gap);
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: linear-gradient(158deg, rgba(16, 30, 51, 0.94), rgba(12, 24, 40, 0.94));
}

.page-faq__panel:last-child {
  margin-bottom: 0;
}

.page-faq__panel--support {
  border-radius: var(--r-sm) var(--r-sm) var(--r-sm) var(--r-lg);
  background: linear-gradient(158deg, rgba(20, 36, 58, 0.96), rgba(12, 24, 40, 0.96));
}

.page-faq__panel--support::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 120px;
  height: 120px;
  border-radius: 0 0 0 var(--r-lg);
  background: radial-gradient(circle at 0% 100%, rgba(240, 180, 94, 0.16), transparent 70%);
  pointer-events: none;
}

.page-faq__h2 {
  margin: 0 0 0.55em;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  letter-spacing: -0.02em;
  line-height: 1.24;
  color: var(--mist);
}

.page-faq__text {
  margin: 0 0 1.1em;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.85;
}

.page-faq__text--sm {
  margin-top: 1.1em;
  margin-bottom: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-faq__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(51, 225, 203, 0.4);
  transition: border-color 0.18s var(--ease);
}

.page-faq__text a:hover {
  border-bottom-color: var(--cyan);
}

/* 四步流程 */
.page-faq__steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  position: relative;
}

.page-faq__steps::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  opacity: 0.45;
}

.page-faq__step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-left: 22px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(10, 19, 34, 0.62);
  transition: border-color 0.18s var(--ease);
}

.page-faq__step:hover {
  border-color: rgba(51, 225, 203, 0.55);
}

.page-faq__step-num {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-shadow: 0 0 16px rgba(51, 225, 203, 0.5);
}

.page-faq__step-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-faq__step-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.page-faq__meta > div {
  display: flex;
  gap: 6px;
  font-size: 12.5px;
}

.page-faq__meta dt {
  color: var(--muted);
  letter-spacing: 0.08em;
}

.page-faq__meta dd {
  margin: 0;
  color: var(--mist);
}

/* 图片 */
.page-faq__figure {
  margin: 20px 0 0;
}

.page-faq__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
}

.page-faq__figure figcaption {
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq__figure--support {
  margin-top: 22px;
}

/* 规则列表 */
.page-faq__rules {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq__rules li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq__rules strong {
  color: var(--mist);
  font-weight: 600;
}

.page-faq__rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

/* 会员等级 */
.page-faq__tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.page-faq__tier {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(10, 19, 34, 0.55);
  border-top-width: 2px;
}

.page-faq__tier--a {
  border-top-color: var(--cyan);
}

.page-faq__tier--b {
  border-top-color: var(--violet);
}

.page-faq__tier--c {
  border-top-color: var(--gold);
}

.page-faq__tier-code {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq__tier h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq__tier p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* 检索示意 */
.page-faq__search {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(10, 19, 34, 0.68);
}

.page-faq__search-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(30, 58, 85, 0.26);
}

.page-faq__search-icon {
  position: relative;
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
}

.page-faq__search-icon::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -3px;
  width: 6px;
  height: 1.5px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq__search-term {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--mist);
  letter-spacing: 0.03em;
}

.page-faq__search-note {
  margin: 12px 0 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 问答折叠 */
.page-faq__qa-list {
  margin-top: 18px;
}

.page-faq__qa {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(10, 19, 34, 0.55);
  overflow: hidden;
  transition: border-color 0.18s var(--ease);
}

.page-faq__qa + .page-faq__qa {
  margin-top: 10px;
}

.page-faq__qa[open] {
  border-color: rgba(51, 225, 203, 0.5);
}

.page-faq__qa summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
}

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

.page-faq__qa summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.22s var(--ease);
}

.page-faq__qa[open] summary::before {
  transform: scaleY(1);
}

.page-faq__qa summary::after {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform 0.22s var(--ease);
}

.page-faq__qa[open] summary::after {
  transform: rotate(45deg);
}

.page-faq__qa summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq__qa p {
  margin: 0;
  padding: 0 16px 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq__qa p:last-child {
  padding-bottom: 16px;
}

/* 联系客服 */
.page-faq__contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.page-faq__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq__contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}

.page-faq__contact-list span {
  min-width: 78px;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq__contact-list strong {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-faq__contact-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

@media (min-width: 700px) {
  .page-faq__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq__steps::before {
    display: none;
  }

  .page-faq__step {
    margin-left: 0;
  }

  .page-faq__tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq__contact {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq__layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-faq__rail {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }

  .page-faq__toc {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__toc-title {
    display: block;
  }

  .page-faq__toc-link {
    width: 100%;
    border-left: 2px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
  }

  .page-faq__toc-link[aria-current="true"],
  .page-faq__toc-link.is-active {
    border-left-color: var(--cyan);
  }
}

@media (min-width: 1180px) {
  .page-faq__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq__step::after {
    content: "";
    position: absolute;
    right: -11px;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    border-top: 2px solid var(--cyan);
    border-right: 2px solid var(--cyan);
    transform: rotate(45deg);
    opacity: 0.65;
  }

  .page-faq__step:last-child::after {
    content: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq__toc-link,
  .page-faq__step,
  .page-faq__qa,
  .page-faq__qa summary::before,
  .page-faq__qa summary::after {
    transition: none;
  }
}
<<<END>>