.page-faq {
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-faq::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 760px;
  pointer-events: none;
  background:
    radial-gradient(58% 62% at 14% 22%, rgba(53, 242, 218, .10), transparent 70%),
    radial-gradient(48% 54% at 82% 6%, rgba(255, 107, 61, .09), transparent 72%);
}

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

/* ---------- 顶部 ---------- */

.page-faq .faq-top__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(22px, 3.5vw, 44px);
}

.page-faq .faq-h1 {
  margin: 14px 0 0;
  font-weight: 200;
  letter-spacing: -0.02em;
  line-height: 0.98;
  color: var(--mist);
}

.page-faq .faq-lede {
  max-width: 58ch;
  margin-top: clamp(16px, 2vw, 26px);
  color: var(--steel);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

.page-faq .faq-top__side-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--steel);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-jump__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 18px;
  border-radius: var(--r-pill);
  background: var(--panel);
  border: 1px solid transparent;
  color: var(--mist);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--tide);
  border-color: var(--line-cyan);
  transform: translateX(4px);
}

.page-faq .faq-jump__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 分组标题 ---------- */

.page-faq .faq-group {
  padding-top: clamp(44px, 6.5vw, 92px);
}

.page-faq .faq-head {
  border-top: 1px solid var(--line);
  padding-top: clamp(16px, 2vw, 24px);
}

.page-faq .faq-head__idx {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--steel);
}

.page-faq .faq-head__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 26px;
}

.page-faq .faq-head__title {
  margin: 0;
  max-width: 26ch;
  font-weight: 300;
  font-size: clamp(23px, 3.3vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-head__count {
  margin: 0;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-faq .faq-head__count .num {
  font-family: var(--font-num);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--cyan);
  margin-right: 4px;
}

.page-faq .faq-head__link {
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid var(--coral-34);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-head__link:hover,
.page-faq .faq-head__link:focus-visible {
  border-bottom-color: var(--coral);
}

/* ---------- 内容分栏 ---------- */

.page-faq .faq-cols {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

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

/* ---------- 问答组 ---------- */

.page-faq .faq-list {
  margin-top: clamp(18px, 2.6vw, 34px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 242, 218, .12));
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .faq-item[open]::before {
  opacity: 1;
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px 14px;
  align-items: baseline;
  padding: 20px 0 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-faq .faq-q__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--sand);
  padding-top: 4px;
}

.page-faq .faq-q__text {
  font-size: clamp(15px, 1.55vw, 18px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-q:hover .faq-q__text {
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-q__text {
  color: var(--cyan);
}

.page-faq .faq-q__mark {
  position: relative;
  width: 16px;
  height: 16px;
  align-self: center;
  flex: none;
}

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

.page-faq .faq-q__mark::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

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

.page-faq .faq-a {
  padding: 0 0 24px;
  animation: faq-open var(--dur) var(--ease) both;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-a p {
  margin: 0 0 .85em;
  max-width: 64ch;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.8;
}

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

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

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

.page-faq .faq-path {
  display: block;
  margin-top: 14px !important;
  padding: 11px 16px;
  border-radius: var(--r-sm);
  border-left: 2px solid var(--cyan);
  background: var(--void);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  letter-spacing: .02em;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-path__k {
  display: inline-block;
  margin-right: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--steel);
}

/* ---------- 刷新节奏面板 ---------- */

.page-faq .faq-clock {
  margin: 0;
  padding: clamp(18px, 2.6vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(155deg, var(--panel), var(--void));
}

.page-faq .faq-clock__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .fc-label {
  fill: var(--steel);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}

.page-faq .fc-axis {
  stroke: rgba(159, 182, 201, .28);
  stroke-width: 1;
}

.page-faq .fc-tick {
  stroke: var(--cyan);
  stroke-width: 1.6;
}

.page-faq .fc-num {
  fill: var(--mist);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-faq .fc-dash {
  stroke: var(--coral);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 3 14;
}

.page-faq .fc-note {
  fill: var(--coral);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-faq .faq-clock__rows {
  margin-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-clock__rows .data-row:last-child {
  border-bottom: 0;
}

/* ---------- 结尾联系 ---------- */

.page-faq .faq-help {
  margin-top: clamp(22px, 3vw, 36px);
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-help__note p {
  margin: 0 0 .9em;
  max-width: 72ch;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.8;
}

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

.page-faq .faq-help__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-faq .faq-chan-list {
  display: grid;
  gap: 14px;
}

.page-faq .faq-chan {
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--r-lg);
  background: var(--panel);
  border-left: 2px solid var(--coral);
}

.page-faq .faq-chan__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--steel);
}

.page-faq .faq-chan__v {
  margin: 0;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-chan__n {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
  max-width: 48ch;
}

.page-faq .faq-help__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-chan-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-top__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
    align-items: end;
  }

  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-faq .faq-cols .faq-list {
    margin-top: 0;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-faq .faq-chan-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-head__title {
    max-width: 30ch;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-q {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-faq .faq-q__idx {
    grid-column: 1 / -1;
    padding-top: 0;
  }

  .page-faq .faq-q__mark {
    align-self: center;
  }
}

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

  .page-faq .faq-jump__link,
  .page-faq .faq-item::before,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after {
    transition: none;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .faq-jump__link:focus-visible {
    transform: none;
  }
}