.page-faq {
  --faq-text: #2B3730;
  --faq-card-line: rgba(107, 115, 108, .26);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ============ 首屏 ============ */
.page-faq .faq-top {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 36px) 0 38px;
  background: linear-gradient(158deg, #0B1424 0%, #0E2A1F 60%, #12603E 100%);
  color: var(--paper);
}

.page-faq .faq-top::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 242, 232, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 242, 232, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-faq .faq-top::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -80px;
  width: 250px;
  height: 170px;
  background: var(--fluo);
  opacity: .16;
  transform: skewX(-18deg);
  pointer-events: none;
}

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

.page-faq .faq-top .crumbs a,
.page-faq .faq-top .crumbs li,
.page-faq .faq-top .crumbs span {
  color: rgba(245, 242, 232, .68);
}

.page-faq .faq-top .crumbs a:hover {
  color: var(--fluo);
}

.page-faq .faq-top h1 {
  margin: 16px 0 0;
  max-width: 20ch;
  font-size: clamp(27px, 5.2vw, 50px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.022em;
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(245, 242, 232, .82);
}

.page-faq .faq-figures {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid rgba(245, 242, 232, .18);
}

.page-faq .faq-figure {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-figure__value {
  font-size: 28px;
  font-weight: 300;
  line-height: 1;
  color: var(--fluo);
  letter-spacing: -.01em;
}

.page-faq .faq-figure__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(245, 242, 232, .62);
}

/* ============ 主体三栏 ============ */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding-top: 32px;
  padding-bottom: 74px;
}

/* ---- 左侧分类索引 ---- */
.page-faq .faq-index {
  border-top: 3px solid var(--ink);
  padding-top: 12px;
}

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

.page-faq .faq-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border-bottom: 2px solid var(--faq-card-line);
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.4;
  white-space: nowrap;
  transition: border-color .24s var(--ease), background .24s var(--ease), color .24s var(--ease);
}

.page-faq .faq-index__list a:hover {
  border-bottom-color: var(--fluo);
  background: var(--mist);
}

.page-faq .faq-index__list a[aria-current="true"] {
  border-bottom-color: var(--fuq, var(--fluo));
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-index__list a[aria-current="true"] .faq-index__n {
  color: var(--fluo);
}

.page-faq .faq-index__n {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--stone);
}

/* ---- 中部问答主干 ---- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-block + .faq-block {
  position: relative;
  margin-top: 46px;
  padding-top: 34px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-block + .faq-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 72px;
  height: 3px;
  background: var(--fluo);
}

.page-faq .faq-head {
  margin-bottom: 20px;
}

.page-faq .faq-head h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 3.6vw, 31px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.018em;
  transform-origin: left bottom;
}

.page-faq .faq-head__lede {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-subhead {
  margin: 30px 0 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--green-deep);
}

.page-faq .faq-shot {
  margin: 4px 0 24px;
  border: 1px solid var(--faq-card-line);
}

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

/* ---- 注册四步 ---- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 16px 16px 18px;
  background: var(--card);
  border: 1px solid var(--faq-card-line);
  border-top: 3px solid var(--green);
  transition: border-color .28s var(--ease), border-top-color .28s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  border-color: var(--green);
  border-top-color: var(--fluo);
}

.page-faq .faq-step__no {
  display: inline-block;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--paper);
  background: var(--green);
  transition: background .28s var(--ease), color .28s var(--ease);
}

.page-faq .faq-step:hover .faq-step__no,
.page-faq .faq-step:focus-within .faq-step__no {
  background: var(--fluo);
  color: var(--ink);
}

.page-faq .faq-step h3 {
  margin: 10px 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.74;
  color: var(--faq-text);
}

.page-faq .faq-step__trap {
  margin-top: 10px;
  padding-left: 9px;
  border-left: 2px solid var(--alert);
  font-size: 12.8px;
  line-height: 1.68;
  color: var(--stone);
}

/* ---- 问答条目 ---- */
.page-faq .qa-list {
  margin: 0;
}

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

.page-faq .qa summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 34px 14px 14px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.62;
  cursor: pointer;
  list-style: none;
  transition: background .24s var(--ease);
}

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

.page-faq .qa summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: var(--fluo);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .26s var(--ease);
}

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--moss);
  transition: color .24s var(--ease);
}

.page-faq .qa summary:hover {
  background: var(--card);
}

.page-faq .qa summary:hover::before,
.page-faq .qa[open] summary::before {
  transform: scaleY(1);
}

.page-faq .qa[open] summary::after {
  content: "\2212";
  color: var(--green);
}

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--stone);
  flex: 0 0 auto;
}

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

.page-faq .qa__a {
  padding: 0 30px 18px 40px;
  font-size: 14.2px;
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .qa__a a {
  color: var(--green-deep);
}

.page-faq .faq-note {
  margin-top: 20px;
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 13.4px;
  line-height: 1.74;
}

/* ---- 联系区块 ---- */
.page-faq .faq-help__lede {
  margin: 12px 0 22px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__item {
  padding: 16px 16px 18px;
  background: var(--mist);
  border-left: 3px solid var(--moss);
}

.page-faq .faq-help__item .idx {
  margin: 0 0 8px;
}

.page-faq .faq-help__value {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-help__value--text {
  font-size: 14px;
  font-weight: 600;
}

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

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---- 右侧旁注 ---- */
.page-faq .faq-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-aside__card {
  padding: 16px 16px 18px;
  background: var(--mist);
  border-left: 3px solid var(--moss);
}

.page-faq .faq-aside__card--alert {
  background: #FBE9E1;
  border-left-color: var(--alert);
}

.page-faq .faq-aside__card--mist {
  background: var(--card);
  border-left-color: var(--green);
}

.page-faq .faq-aside__card .idx {
  margin: 0 0 10px;
}

.page-faq .faq-aside__card p {
  margin: 0;
  font-size: 13.2px;
  line-height: 1.76;
  color: var(--faq-text);
}

.page-faq .faq-aside__links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-aside__links li + li {
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px solid var(--faq-card-line);
}

.page-faq .faq-aside__links a {
  font-size: 13.4px;
  line-height: 1.6;
}

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 194px minmax(0, 1fr) 248px;
    gap: 38px;
    padding-top: 48px;
    padding-bottom: 88px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list > li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__list a {
    justify-content: space-between;
    padding: 9px 10px 9px 13px;
    border-bottom: none;
    border-left: 2px solid var(--faq-card-line);
    white-space: normal;
  }

  .page-faq .faq-index__list a:hover {
    border-left-color: var(--fluo);
  }

  .page-faq .faq-index__list a[aria-current="true"] {
    border-left-color: var(--fluo);
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

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

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-top {
    padding: calc(var(--header-h) + 52px) 0 48px;
  }

  .page-faq .faq-head__lede {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa summary::before,
  .page-faq .qa summary::after,
  .page-faq .faq-step,
  .page-faq .faq-step__no,
  .page-faq .faq-index__list a {
    transition: none;
  }
}

.page-faq {
  --fuq: currentColor;
}