.page-faq .crumb-sep {
  margin: 0 8px;
  color: var(--ink-3);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 6vw, 54px) 0 clamp(24px, 5vw, 46px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 96% at 10% -10%, rgba(19, 74, 92, .62), transparent 62%),
    linear-gradient(180deg, #0A1230 0%, var(--night) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(115deg, rgba(56, 242, 208, .055) 0 1px, transparent 1px 24px);
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero-copy {
  max-width: 62ch;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 50px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-hero .lead {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: clamp(.96rem, 1.6vw, 1.04rem);
  line-height: 1.72;
  color: var(--ink-2);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
  clip-path: var(--cut);
}

.page-faq .faq-stat {
  padding: 14px 12px;
  background: var(--board);
}

.page-faq .faq-stat dt {
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.page-faq .faq-stat dd {
  margin: 6px 0 0;
  font-family: var(--font-num);
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--ink);
}

.page-faq .faq-stat .num {
  font-size: 1.7em;
  color: var(--orange);
}

/* ---------- 分类标签条 ---------- */
.page-faq .faq-tabbar {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 21, 48, .92), rgba(6, 11, 26, .92));
}

.page-faq .faq-tabbar-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0;
  scrollbar-width: none;
}

.page-faq .faq-tabbar-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  padding: 8px 14px;
  font-size: .84rem;
  color: var(--ink-2);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--board);
  clip-path: var(--cut-tag);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  color: var(--cyan);
  background: var(--cyan-soft);
  border-color: rgba(56, 242, 208, .5);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-wrap {
  display: grid;
  gap: 30px;
  padding: clamp(26px, 5vw, 52px) 0 clamp(48px, 8vw, 80px);
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(38px, 6vw, 62px);
  min-width: 0;
}

.page-faq .faq-aside {
  order: -1;
  min-width: 0;
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--board);
  clip-path: var(--cut-sm);
  padding: 14px 16px;
}

.page-faq .faq-toc-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink-3);
}

.page-faq .faq-toc-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-toc-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 5px 10px;
  font-size: .85rem;
  color: var(--ink-2);
  white-space: nowrap;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-toc-list a .num {
  font-size: .8em;
  font-weight: 700;
  color: var(--ink-3);
}

.page-faq .faq-toc-list a:hover,
.page-faq .faq-toc-list a:focus-visible {
  color: var(--cyan);
  background: var(--cyan-soft);
}

.page-faq .faq-toc-list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-toc-list a[aria-current="true"] {
  color: var(--cyan);
  border-color: rgba(56, 242, 208, .38);
}

.page-faq .faq-toc-list a[aria-current="true"] .num {
  color: var(--orange);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
}

.page-faq .faq-group-head {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group-num {
  display: inline-block;
  font-size: clamp(1.9rem, 4.6vw, 2.5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--orange);
  transform: skewX(-9deg);
}

.page-faq .faq-group-head h2 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 1.7rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

.page-faq .faq-group-head p {
  margin: 8px 0 0;
  max-width: 56ch;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-group-head--split {
  display: grid;
  gap: 18px;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: 0 0 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--board);
  clip-path: var(--cut);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: brightness(.62) saturate(1.05);
}

.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(158deg, rgba(19, 74, 92, .55), rgba(6, 11, 26, .18) 62%);
}

.page-faq .faq-group-head--split .faq-figure {
  margin: 0;
}

.page-faq .faq-figure--tall img {
  aspect-ratio: 3 / 4;
  object-position: center top;
}

.page-faq .faq-figure--wide img {
  aspect-ratio: 3 / 2;
  object-position: center;
}

/* ---------- 问答卡 ---------- */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
}

.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  background: var(--board);
  clip-path: var(--cut-sm);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  opacity: .55;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 242, 208, .45);
}

.page-faq .faq-item:hover::before {
  opacity: 1;
}

.page-faq .faq-item[open] {
  background: var(--board-2);
  border-color: rgba(56, 242, 208, .38);
}

.page-faq .faq-item[open]::before {
  background: var(--orange);
  opacity: 1;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px 15px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-q-text {
  margin: 0;
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.2vw, 1.08rem);
  font-weight: 600;
  line-height: 1.38;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--line);
  background: rgba(56, 242, 208, .06);
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .faq-mark::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .faq-mark::after {
  width: 1.5px;
  height: 9px;
  transition: transform 220ms var(--ease);
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-a {
  padding: 0 20px 18px;
  font-size: .94rem;
  line-height: 1.72;
  color: var(--ink-2);
}

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

.page-faq .faq-a p + p {
  margin-top: 10px;
}

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 9px;
}

.page-faq .faq-a .faq-steps {
  margin-top: 4px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 34px;
  counter-increment: faqstep;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: -3px;
  font-family: var(--font-num);
  font-size: 1.32rem;
  font-weight: 800;
  line-height: 1;
  color: var(--orange);
  transform: skewX(-11deg);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-group--support {
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--line);
  background:
    radial-gradient(110% 120% at 100% 0%, rgba(19, 74, 92, .5), transparent 60%),
    var(--board);
  clip-path: var(--cut);
}

.page-faq .faq-group--support .faq-group-head {
  border-bottom-color: rgba(56, 242, 208, .28);
}

.page-faq .faq-contact {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--board-2);
  clip-path: var(--cut-sm);
}

.page-faq .faq-contact-card--accent {
  border-left-color: var(--orange);
}

.page-faq .faq-contact-key {
  display: block;
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--ink-3);
}

.page-faq .faq-contact-value {
  margin: 8px 0 0;
  font-family: var(--font-num);
  font-size: clamp(1rem, 2.6vw, 1.16rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 8px 0 0;
  font-size: .88rem;
  line-height: 1.68;
  color: var(--ink-2);
}

.page-faq .faq-support-link {
  margin: 18px 0 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-support-link a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, .85fr);
    align-items: end;
    gap: 34px;
  }

  .page-faq .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-faq .faq-group-head--split {
    grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
    align-items: end;
    gap: 24px;
  }

  .page-faq .faq-toc-list a {
    padding: 5px 8px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-wrap {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-aside {
    order: 0;
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
  }

  .page-faq .faq-toc-list a {
    display: flex;
    justify-content: flex-start;
    width: 100%;
    padding: 7px 10px;
  }

  .page-faq .faq-toc {
    padding: 18px 16px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-list {
    gap: 16px;
  }

  .page-faq .faq-item:nth-child(even) {
    transform: translateY(12px);
  }

  .page-faq .faq-item:nth-child(even):hover {
    transform: translateY(8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-tab,
  .page-faq .faq-mark::after,
  .page-faq .faq-toc-list a {
    transition: none;
  }

  .page-faq .faq-item:hover,
  .page-faq .faq-item:nth-child(even),
  .page-faq .faq-item:nth-child(even):hover {
    transform: none;
  }
}