.page-faq {
  --faq-line-soft: rgba(23, 70, 111, .72);
  --faq-pad: clamp(30px, 4.8vw, 54px);
  background: var(--night);
  color: var(--mist);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: 22px;
  font-size: 13px;
  color: var(--mist);
}
.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  color: var(--lime);
}
.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 5.4vw, 68px) 0 clamp(20px, 3vw, 34px);
}
.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}
.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  max-width: 16em;
  font-size: clamp(30px, 5.2vw, 60px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
}
.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 38em;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--mist);
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

/* ---------- 网格骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 纵向索引 ---------- */
.page-faq .faq-index {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 2px 0 10px;
  border-bottom: 1px solid var(--faq-line-soft);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-index::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--lime);
  border-color: var(--faq-line-soft);
}
.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  padding: var(--faq-pad) 0;
  border-top: 1px solid var(--faq-line-soft);
}
.page-faq .faq-block:first-of-type {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}
.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lime);
}
.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(21px, 2.9vw, 33px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
}
.page-faq .faq-block__note {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-faq .prose {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-faq .faq-inline-note {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(201, 214, 222, .78);
}
.page-faq .faq-inline-note a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 241, 58, .4);
}
.page-faq .faq-inline-note a:hover {
  border-bottom-color: var(--lime);
}

/* ---------- 封面图 ---------- */
.page-faq .faq-cover {
  position: relative;
  margin: 0 0 clamp(26px, 4vw, 44px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  background: var(--lake);
}
.page-faq .faq-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.78) contrast(1.06) brightness(.76);
}
.page-faq .faq-cover figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 34px 14px 10px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--paper);
  background: linear-gradient(to top, rgba(6, 20, 27, .94), rgba(6, 20, 27, 0));
}

/* ---------- 速答卡 ---------- */
.page-faq .faq-quick {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}
.page-faq .faq-qcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 14px;
  background: var(--lake);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 rgba(3, 10, 14, .55);
}
.page-faq .faq-qcard__q {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}
.page-faq .faq-qcard__a {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  background: var(--lake);
  margin-bottom: 10px;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.page-faq .faq-item:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item[open] {
  border-color: rgba(183, 241, 58, .5);
  box-shadow: inset 3px 0 0 var(--lime);
}
.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  color: var(--white);
  transition: color .2s var(--ease);
}
.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item > summary::marker {
  content: "";
}
.page-faq .faq-item > summary:hover {
  color: var(--lime);
}
.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
  border-radius: var(--radius);
}
.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}
.page-faq .faq-item__q {
  font-size: 15px;
  line-height: 1.55;
  font-weight: 600;
  letter-spacing: .01em;
}
.page-faq .faq-item__icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
  color: var(--lime);
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform .26s var(--ease), opacity .26s var(--ease);
}
.page-faq .faq-item__icon::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}
.page-faq .faq-item__icon::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}
.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-faq .faq-item__body {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  animation: faq-drop .26s var(--ease);
}
.page-faq .faq-item__body p {
  margin: 0 0 10px;
}
.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}
@keyframes faq-drop {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 速答卡内嵌的小手风琴 */
.page-faq .faq-item--mini {
  margin-top: auto;
  margin-bottom: 0;
  background: rgba(6, 20, 27, .5);
  border-color: rgba(23, 70, 111, .85);
}
.page-faq .faq-item--mini > summary {
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
}
.page-faq .faq-item--mini .faq-item__q {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--lime);
}
.page-faq .faq-item--mini[open] {
  border-color: rgba(255, 122, 26, .55);
  box-shadow: inset 3px 0 0 var(--orange);
}
.page-faq .faq-item--mini[open] .faq-item__q {
  color: var(--paper);
}
.page-faq .faq-item--mini .faq-item__body {
  padding: 0 12px 14px;
  font-size: 13.5px;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-media-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 46em;
}
.page-faq .faq-steps li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background: rgba(14, 42, 71, .62);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}
.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lime);
  line-height: 1.95;
}

/* 竖构图配图 */
.page-faq .faq-portrait {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
  background: var(--lake);
}
.page-faq .faq-portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.08) brightness(.78);
}
.page-faq .faq-portrait figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px 12px 10px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--paper);
  background: linear-gradient(to top, rgba(6, 20, 27, .94), rgba(6, 20, 27, 0));
}

/* ---------- 三种查排名方式 ---------- */
.page-faq .faq-ways {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}
.page-faq .faq-way {
  position: relative;
  padding: 22px 18px 18px;
  background: var(--paper);
  color: var(--graphite);
  border: 1px solid var(--graphite);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 rgba(3, 10, 14, .45);
}
.page-faq .faq-way__no {
  position: absolute;
  top: -11px;
  left: 16px;
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  background: var(--lime);
  color: var(--night);
  border-radius: 2px;
}
.page-faq .faq-way__title {
  margin: 4px 0 8px;
  font-size: 16px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--graphite);
}
.page-faq .faq-way p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--graphite);
}

/* ---------- 纠错信息清单 ---------- */
.page-faq .faq-need {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 44em;
}
.page-faq .faq-need li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(23, 70, 111, .85);
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}
.page-faq .faq-need li span {
  color: var(--lime);
  font-weight: 600;
}

.page-faq .faq-callout {
  padding: 18px 20px;
  max-width: 44em;
  background: rgba(255, 122, 26, .1);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper);
}
.page-faq .faq-callout p {
  margin: 0;
}
.page-faq .faq-callout strong {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .01em;
  word-break: break-all;
}

/* ---------- 联系渠道 ---------- */
.page-faq .faq-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 4px;
}
.page-faq .faq-channel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: rgba(14, 42, 71, .6);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--radius);
}
.page-faq .faq-channel__label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}
.page-faq .faq-channel__value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-faq .faq-quick > :nth-child(2) {
    margin-top: 34px;
  }
  .page-faq .faq-quick > :nth-child(3) {
    margin-top: 14px;
  }
  .page-faq .faq-ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
  .page-faq .faq-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-need li {
    grid-template-columns: minmax(150px, auto) minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-media-split {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 34px;
    align-items: start;
  }
}

/* ---------- 桌面：纵向索引常驻 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 156px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    overflow: visible;
    padding: 2px 0 2px 16px;
    border-bottom: 0;
    border-left: 1px solid var(--faq-line-soft);
    max-height: none;
  }
  .page-faq .faq-index__link {
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 10px 10px 10px 12px;
  }
  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--lime);
    background: rgba(14, 42, 71, .62);
    color: var(--lime);
  }
  .page-faq .faq-cover {
    margin-top: 4px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-item,
  .page-faq .faq-index__link {
    transition: none;
  }
}