.page-faq {
  --faq-panel-indent: 52px;
  --faq-line: var(--hairline);
}

.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 62px) 0 clamp(34px, 6vw, 74px);
  background:
    radial-gradient(120% 90% at 84% 10%, rgba(139, 92, 246, .16), transparent 62%),
    radial-gradient(90% 80% at 4% 0%, rgba(47, 230, 210, .10), transparent 58%),
    var(--ink-900);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  align-items: center;
}

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

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 16px;
}

.page-faq h1 {
  margin: 14px 0 0;
  max-width: 21ch;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.14;
  letter-spacing: -.022em;
  font-weight: 800;
  color: var(--silver-050);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 58ch;
  color: var(--silver-200);
}

.page-faq .faq-meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver-400);
}

.page-faq .faq-meta li {
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(14, 17, 23, .6);
}

.page-faq .faq-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
  box-shadow: 0 18px 40px -28px rgba(0, 0, 0, .9);
}

.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(70% 60% at 78% 20%, var(--violet-a), transparent 70%),
    radial-gradient(60% 60% at 12% 88%, var(--cyan-a), transparent 72%);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: contrast(1.06) saturate(.94);
}

/* 路线图 */
.page-faq .faq-route-section {
  border-bottom: 1px solid var(--faq-line);
  background: var(--ink-800);
}

.page-faq .faq-route-head {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .faq-route-note {
  margin: 0;
  max-width: 62ch;
  color: var(--silver-400);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-route {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-route li {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .route-node {
  position: relative;
  display: grid;
  gap: 3px;
  padding: 16px 8px 16px 44px;
  text-decoration: none;
  color: inherit;
  transition: background-color .24s linear, padding-left .24s linear;
}

.page-faq .route-node__num {
  position: absolute;
  left: 0;
  top: 19px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--silver-400);
  transition: color .24s linear;
}

.page-faq .route-node__title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--silver-050);
}

.page-faq .route-node__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver-400);
}

.page-faq .route-node:hover,
.page-faq .route-node:focus-visible {
  background: linear-gradient(180deg, var(--cyan-a), var(--violet-a));
}

.page-faq .route-node:hover .route-node__num,
.page-faq .route-node:focus-visible .route-node__num {
  color: var(--cyan);
}

.page-faq .route-node:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -1px;
}

/* 主体 */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
}

.page-faq .faq-aside {
  display: grid;
  gap: 14px;
  align-content: start;
  min-width: 0;
}

.page-faq .faq-aside__card {
  display: grid;
  gap: 8px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
  padding: 20px;
}

.page-faq .faq-aside__card--quiet {
  background: var(--ink-800);
  border-style: dashed;
  border-color: var(--hairline-soft);
}

.page-faq .faq-aside__label {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--silver-400);
}

.page-faq .faq-aside__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--silver-050);
  word-break: break-all;
}

.page-faq .faq-aside .copy-btn {
  justify-self: start;
  border: 1px solid var(--hairline-soft);
  border-radius: 999px;
  background: transparent;
  color: var(--silver-200);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .06em;
  padding: 5px 12px;
  cursor: pointer;
  transition: border-color .24s linear, color .24s linear;
}

.page-faq .faq-aside .copy-btn:hover,
.page-faq .faq-aside .copy-btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-aside__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver-400);
}

.page-faq .faq-aside .btn {
  justify-self: start;
  margin-top: 10px;
}

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

/* 问答分组 */
.page-faq .faq-group {
  padding-top: clamp(26px, 4vw, 42px);
  scroll-margin-top: 104px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 58px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

.page-faq .faq-group__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-700);
  -webkit-text-stroke: 1px var(--hairline-soft);
}

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

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 2.7vw, 28px);
  line-height: 1.25;
  letter-spacing: -.018em;
  font-weight: 800;
  color: var(--silver-050);
}

.page-faq .faq-group__lead {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver-200);
}

/* 三档节奏 */
.page-faq .faq-scale {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--faq-line);
}

.page-faq .faq-scale__item {
  display: grid;
  gap: 6px;
  padding: 16px;
  background: var(--ink-800);
}

.page-faq .faq-scale__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  font-weight: 700;
  color: var(--silver-050);
}

.page-faq .faq-scale__txt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver-400);
}

.page-faq .faq-scale .chip {
  justify-self: start;
}

.page-faq .faq-inline-figure {
  position: relative;
  margin: 22px 0 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(200deg, var(--ink-800), var(--ink-900));
}

.page-faq .faq-inline-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, var(--cyan-a), transparent 45%, var(--violet-a));
}

.page-faq .faq-inline-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.08) saturate(.9);
}

.page-faq .faq-inline-figure .media-caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--silver-400);
  background: var(--ink-900);
}

/* 手风琴 */
.page-faq .accordion {
  margin-top: 20px;
  border-top: 1px solid var(--faq-line);
}

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

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

.page-faq .accordion-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 16px;
  gap: 12px;
  align-items: start;
  padding: 17px 0;
  background: none;
  border: 0;
  color: var(--silver-050);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: -.005em;
  text-align: left;
  cursor: pointer;
  transition: color .24s linear;
}

.page-faq .accordion-trigger:hover {
  color: var(--cyan);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-q__num {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--silver-400);
  transition: color .24s linear;
}

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

.page-faq .faq-q__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 8px;
  justify-self: end;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--silver-400);
  transition: transform .24s linear, background-color .24s linear;
}

.page-faq .faq-q__sign::after {
  transform: rotate(90deg);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-q__num {
  color: var(--cyan);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-q__sign::before,
.page-faq .accordion-trigger[aria-expanded="true"] .faq-q__sign::after {
  background: var(--cyan);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-q__sign::after {
  transform: rotate(0deg);
}

.page-faq .accordion-panel {
  padding: 0 0 22px var(--faq-panel-indent);
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver-200);
  animation: faq-panel-in .26s linear both;
}

.page-faq .accordion-panel[hidden] {
  display: none;
}

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

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

.page-faq .accordion-panel ul {
  margin: 0 0 12px;
  padding-left: 18px;
  list-style: none;
}

.page-faq .accordion-panel li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
}

.page-faq .accordion-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 1px;
  background: var(--violet);
}

.page-faq .accordion-panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 230, 210, .35);
  transition: border-color .24s linear;
}

.page-faq .accordion-panel a:hover,
.page-faq .accordion-panel a:focus-visible {
  border-bottom-color: var(--cyan);
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 收尾 */
.page-faq .faq-next {
  margin-top: clamp(36px, 5vw, 60px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background:
    linear-gradient(120deg, var(--cyan-a), transparent 46%, var(--violet-a)),
    var(--ink-800);
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: 16px;
}

.page-faq .faq-next__text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver-200);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 620px) {
  .page-faq .faq-scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-faq .faq-route {
    position: relative;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border-top: 0;
  }

  .page-faq .faq-route::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: var(--rail);
    opacity: .55;
  }

  .page-faq .faq-route li {
    border-bottom: 0;
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .faq-route li:last-child {
    border-right: 0;
  }

  .page-faq .route-node {
    padding: 26px 16px 22px;
    gap: 5px;
  }

  .page-faq .route-node__num {
    position: static;
    padding-top: 0;
  }

  .page-faq .faq-group__head {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-faq .faq-group__index {
    font-size: clamp(38px, 4vw, 52px);
    padding-top: 2px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(38px, 5vw, 64px);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 100px;
  }
}

@media (max-width: 560px) {
  .page-faq {
    --faq-panel-indent: 38px;
  }

  .page-faq .accordion-trigger {
    grid-template-columns: 26px minmax(0, 1fr) 14px;
    gap: 8px;
    font-size: 15px;
  }

  .page-faq .faq-q__num {
    padding-top: 4px;
    font-size: 11px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion-panel {
    animation: none;
  }

  .page-faq .route-node,
  .page-faq .accordion-trigger,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after {
    transition: none;
  }
}