.page-faq {
  background: var(--ink-900);
  color: var(--paper-100);
  overflow-x: hidden;
}

.page-faq a {
  color: inherit;
  text-decoration: none;
}

.page-faq .faq-hero {
  padding: calc(var(--header-h) + 8px) 0 40px;
  position: relative;
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted-400);
  margin-bottom: 22px;
}

.page-faq .faq-crumb a {
  color: var(--muted-400);
  transition: color var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--lime-400);
}

.page-faq .faq-hero h1 {
  font-size: clamp(28px, 6vw, 56px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 14px 0 18px;
  max-width: 18em;
}

.page-faq .faq-hero__lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted-400);
  max-width: 38em;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__coord {
  margin-top: 28px;
  color: var(--ink-600);
}

/* 索引 + 问答主体 */
.page-faq .faq-board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-faq .faq-index {
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  padding: 20px 20px 18px;
}

.page-faq .faq-index__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan-300);
  margin-bottom: 14px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--ink-700);
  color: var(--muted-400);
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--lime-400);
  border-color: var(--lime-600);
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--cyan-300);
  letter-spacing: 0.08em;
}

.page-faq .faq-index__note {
  margin-top: 16px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted-400);
  border-top: 1px solid var(--ink-700);
  padding-top: 14px;
}

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

.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 36px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-700);
  margin-bottom: 4px;
}

.page-faq .faq-group__no {
  font-size: 12px;
  color: var(--lime-400);
  letter-spacing: 0.1em;
}

.page-faq .faq-group__title {
  flex: 1;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0;
}

.page-faq .faq-group__count {
  font-size: 12px;
  color: var(--muted-400);
  white-space: nowrap;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  transition: color var(--ease);
}

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

.page-faq .faq-item__head::marker {
  content: "";
}

.page-faq .faq-item__idx {
  flex: none;
  font-size: 12px;
  color: var(--cyan-300);
  letter-spacing: 0.06em;
  width: 2.4em;
}

.page-faq .faq-item__q {
  flex: 1;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper-100);
  transition: color var(--ease);
}

.page-faq .faq-item__head:hover .faq-item__q,
.page-faq .faq-item[open] .faq-item__q {
  color: var(--lime-400);
}

.page-faq .faq-item__toggle {
  flex: none;
  align-self: center;
  position: relative;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--ink-700);
  background: transparent;
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  background: var(--lime-400);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease);
}

.page-faq .faq-item__toggle::before {
  width: 10px;
  height: 2px;
  left: 5px;
  top: 9px;
}

.page-faq .faq-item__toggle::after {
  width: 2px;
  height: 10px;
  left: 9px;
  top: 5px;
}

.page-faq .faq-item[open] .faq-item__toggle {
  background: var(--ink-700);
  border-color: var(--lime-600);
}

.page-faq .faq-item[open] .faq-item__toggle::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 2px 20px 2px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-400);
  max-width: 40em;
}

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

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

.page-faq .faq-item__body a {
  color: var(--cyan-300);
  border-bottom: 1px solid rgba(95, 224, 206, 0.4);
  transition: color var(--ease), border-color var(--ease);
}

.page-faq .faq-item__body a:hover {
  color: var(--lime-400);
  border-color: var(--lime-600);
}

/* 章节头 */
.page-faq .faq-sec-head {
  margin-bottom: 28px;
}

.page-faq .faq-sec-head__title {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  margin: 12px 0 12px;
  max-width: 20em;
}

.page-faq .faq-sec-head__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-400);
  max-width: 40em;
}

/* 三步上手 */
.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 20px 26px;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: border-color var(--ease), background var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--lime-600);
  background: var(--ink-700);
}

.page-faq .faq-step__no {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime-400);
  margin-bottom: 12px;
}

.page-faq .faq-step__title {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-faq .faq-step__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted-400);
  margin: 0;
}

.page-faq .faq-figure {
  margin: 26px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted-400);
  border-top: 1px solid var(--ink-700);
}

/* 时间规则 */
.page-faq .faq-time__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-time__item {
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900) 78%);
  border: 1px solid var(--ink-700);
  transition: border-color var(--ease);
}

.page-faq .faq-time__item:hover {
  border-color: var(--cyan-300);
}

.page-faq .faq-time__value {
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan-300);
  letter-spacing: 0.01em;
  margin: 0 0 12px;
}

.page-faq .faq-time__title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
}

.page-faq .faq-time__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-400);
  margin: 0;
}

/* 术语速查 */
.page-faq .faq-terms__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding-bottom: 18px;
}

.page-faq .faq-term {
  padding: 16px 14px 18px;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-sm);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-faq .faq-term:hover {
  border-color: var(--amber-400);
  background: var(--ink-700);
  transform: translateY(-3px);
}

.page-faq .faq-term__no {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--amber-400);
  margin-bottom: 8px;
}

.page-faq .faq-term__title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 6px;
}

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

.page-faq .faq-terms__more {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted-400);
  max-width: 44em;
  border-left: 2px solid var(--ink-700);
  padding-left: 14px;
}

/* 提交反馈 */
.page-faq .faq-report__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-faq .faq-report__title {
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 800;
  line-height: 1.18;
  margin: 12px 0 12px;
}

.page-faq .faq-report__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-400);
  max-width: 34em;
  margin-bottom: 22px;
}

.page-faq .faq-report__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-report__list li {
  display: flex;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  background: var(--ink-800);
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-700);
  transition: border-color var(--ease);
}

.page-faq .faq-report__list li:hover {
  border-color: var(--lime-600);
}

.page-faq .faq-report__n {
  flex: none;
  font-size: 12px;
  color: var(--lime-400);
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.page-faq .faq-report__list h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 5px;
}

.page-faq .faq-report__list p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted-400);
  margin: 0;
}

.page-faq .faq-report__meta {
  border-top: 1px solid var(--ink-700);
  padding-top: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-report__meta p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper-100);
  margin: 0 0 6px;
}

.page-faq .faq-report__meta .mono {
  display: inline-block;
  min-width: 5em;
  color: var(--cyan-300);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-report__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

.page-faq .faq-report__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1 / 1;
}

.page-faq .faq-report__figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted-400);
  border-top: 1px solid var(--ink-700);
}

/* 桌面端 */
@media (min-width: 720px) {
  .page-faq .faq-time__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-terms__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-term:nth-child(even) {
    transform: translateY(14px);
  }

  .page-faq .faq-term:nth-child(even):hover {
    transform: translateY(11px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    position: relative;
  }

  .page-faq .faq-steps__list::before {
    content: "";
    position: absolute;
    top: 46px;
    left: 6%;
    right: 6%;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--ink-600) 0 6px, transparent 6px 13px);
    z-index: 0;
  }

  .page-faq .faq-step {
    z-index: 1;
  }

  .page-faq .faq-report__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 44px;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 32px);
    padding-bottom: 56px;
  }

  .page-faq .faq-board__grid {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    padding: 24px 22px 22px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-left: 22px;
    position: relative;
  }

  .page-faq .faq-index__list::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 16px;
    bottom: 16px;
    width: 2px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--ink-600), var(--ink-700));
  }

  .page-faq .faq-index__link {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    width: 100%;
    padding: 11px 8px;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    position: relative;
    font-size: 15px;
    white-space: normal;
  }

  .page-faq .faq-index__link::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--ink-600);
    background: var(--ink-800);
    transition: background var(--ease), border-color var(--ease);
  }

  .page-faq .faq-index__link:hover {
    background: var(--ink-700);
    color: var(--paper-100);
  }

  .page-faq .faq-index__link:hover::before {
    background: var(--lime-400);
    border-color: var(--lime-400);
  }

  .page-faq .faq-item__body {
    padding-left: 2.4em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item__head,
  .page-faq .faq-item__q,
  .page-faq .faq-item__toggle,
  .page-faq .faq-item__toggle::before,
  .page-faq .faq-item__toggle::after,
  .page-faq .faq-step,
  .page-faq .faq-term,
  .page-faq .faq-time__item,
  .page-faq .faq-report__list li {
    transition-duration: 0.001ms;
  }
}
<<<END>>>