.page-faq {
  --faq-rail-w: 236px;
  --faq-line: rgba(159, 179, 204, 0.16);
  overflow-x: clip;
  padding-bottom: 72px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 0;
  margin-top: 8px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 250px;
  background:
    linear-gradient(112deg, rgba(53, 228, 214, 0.20) 0%, rgba(53, 228, 214, 0.02) 48%, rgba(255, 106, 44, 0.12) 100%);
  clip-path: polygon(0 10%, 100% 0, 100% 78%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero__annot {
  display: inline-block;
  margin: 0 0 16px;
  font-family: var(--ky-font-num);
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--ky-cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--ky-font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ky-ice);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 66ch;
  color: var(--ky-mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-jump {
  display: inline-block;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--ky-line-cyan);
  background: var(--ky-glass);
  color: var(--ky-cyan-soft);
  font-size: 13.5px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: var(--ky-glass-hi);
  color: var(--ky-ice);
  transform: translateY(-2px);
}

.page-faq .faq-jump--hot {
  border-color: rgba(255, 106, 44, 0.55);
  color: var(--ky-lava-soft);
}

.page-faq .faq-jump--hot:hover,
.page-faq .faq-jump--hot:focus-visible {
  color: var(--ky-lava-soft);
  background: rgba(255, 106, 44, 0.16);
}

.page-faq .faq-hero__media {
  margin: 34px 0 0;
  border-radius: var(--ky-radius);
  overflow: hidden;
  border: 1px solid var(--ky-line);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 主布局：分类轨道 + 问答主体 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 54px;
}

.page-faq .faq-rail {
  border-top: 1px solid var(--ky-line);
  padding-top: 18px;
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-family: var(--ky-font-num);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--ky-mist);
}

.page-faq .faq-rail__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  flex: none;
  white-space: nowrap;
  padding: 9px 13px;
  border-radius: 10px;
  border-left: 2px solid transparent;
  color: var(--ky-mist);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-rail__link .ky-num {
  font-size: 11.5px;
  color: var(--ky-cyan-soft);
  letter-spacing: 0.06em;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--ky-ice);
  background: var(--ky-glass);
}

.page-faq .faq-rail__link.is-active {
  color: var(--ky-cyan);
  border-left-color: var(--ky-cyan);
  background: rgba(53, 228, 214, 0.08);
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ky-mist);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 60px;
  scroll-margin-top: 92px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ky-line);
}

.page-faq .faq-group__idx {
  font-size: 13px;
  color: var(--ky-cyan);
  letter-spacing: 0.1em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--ky-font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ky-ice);
}

.page-faq .faq-group__intro {
  margin: 16px 0 22px;
  max-width: 64ch;
  color: var(--ky-mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-group__more {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ky-mist);
}

.page-faq .faq-link {
  color: var(--ky-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--ky-line-cyan);
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

/* ---------- 天数对比 ---------- */
.page-faq .faq-days {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-days__item {
  position: relative;
  padding: 16px 14px 14px;
  border-radius: 14px;
  border: 1px solid var(--ky-line-cyan);
  background: var(--ky-deep);
}

.page-faq .faq-days__item--hot {
  border-color: rgba(255, 106, 44, 0.5);
  background: linear-gradient(150deg, rgba(255, 106, 44, 0.14), rgba(255, 106, 44, 0.02));
}

.page-faq .faq-days__num {
  font-family: var(--ky-font-num);
  font-size: 30px;
  line-height: 1;
  color: var(--ky-cyan);
  letter-spacing: -0.02em;
}

.page-faq .faq-days__item--hot .faq-days__num {
  color: var(--ky-lava-soft);
}

.page-faq .faq-days__unit {
  margin-left: 4px;
  font-size: 13px;
  color: var(--ky-cyan-soft);
}

.page-faq .faq-days__item--hot .faq-days__unit {
  color: var(--ky-lava-soft);
}

.page-faq .faq-days__desc {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ky-mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  position: relative;
  border-radius: 14px;
  border: 1px solid var(--ky-line);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--ky-cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.28s ease;
  z-index: 2;
}

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

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

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 48px 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__no {
  flex: none;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ky-cyan);
}

.page-faq .faq-item__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ky-ice);
}

.page-faq .faq-item__icon {
  position: absolute;
  right: 18px;
  top: 20px;
  width: 14px;
  height: 14px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--ky-cyan);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.page-faq .faq-item__icon::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
}

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

.page-faq .faq-item__a {
  padding: 0 24px 20px 46px;
  color: var(--ky-mist);
  font-size: 15px;
  line-height: 1.8;
}

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

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

.page-faq .faq-k {
  font-family: var(--ky-font-num);
  font-size: 13.5px;
  color: var(--ky-cyan-soft);
  background: rgba(53, 228, 214, 0.10);
  border-radius: 6px;
  padding: 1px 6px;
  letter-spacing: 0;
}

/* ---------- 账号与设备 ---------- */
.page-faq .faq-account__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-account__media {
  margin: 0;
  border-radius: var(--ky-radius);
  overflow: hidden;
  border: 1px solid var(--ky-line);
}

.page-faq .faq-account__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 6px;
}

.page-faq .faq-contact__card {
  padding: 22px 20px;
  border-radius: var(--ky-radius);
  border: 1px solid var(--ky-line);
  background: var(--ky-deep);
}

.page-faq .faq-contact__card--hot {
  border-color: rgba(255, 106, 44, 0.45);
  background: linear-gradient(145deg, rgba(255, 106, 44, 0.14), rgba(255, 106, 44, 0.02));
}

.page-faq .faq-contact__label {
  margin: 0 0 10px;
  font-family: var(--ky-font-num);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ky-mist);
}

.page-faq .faq-contact__value {
  margin: 0 0 10px;
  font-family: var(--ky-font-num);
  font-size: 17px;
  line-height: 1.4;
  color: var(--ky-ice);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ky-mist);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-contact__cta {
  text-decoration: none;
}

/* ---------- 焦点与动效 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--ky-cyan);
  outline-offset: 2px;
  border-radius: 8px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-days {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-account__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-item__q {
    padding: 18px 56px 18px 22px;
  }

  .page-faq .faq-item__a {
    padding: 0 40px 22px 58px;
  }
}

/* ---------- 桌面：侧向分类轨道 ---------- */
@media (min-width: 980px) {
  .page-faq {
    padding-bottom: 96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 54px;
    align-items: start;
    margin-top: 66px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    border-top: none;
    border-left: 1px solid var(--ky-line);
    padding: 4px 0 0 18px;
  }

  .page-faq .faq-rail__label {
    letter-spacing: 0.3em;
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    white-space: normal;
    padding: 10px 12px;
  }

  .page-faq .faq-rail__note {
    margin-top: 20px;
    padding-right: 6px;
  }
}
<<<END>>>