.page-faq {
  padding-top: var(--s5);
  padding-bottom: var(--s7);
  color: var(--paper);
}

.page-faq .breadcrumb {
  margin-bottom: var(--s5);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s1);
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: var(--s1);
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--lime);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: var(--s5);
  padding-bottom: var(--s6);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -3vw;
  right: -3vw;
  height: 340px;
  background:
    radial-gradient(58% 96% at 10% 0%, rgba(123, 77, 255, 0.38), transparent 72%),
    radial-gradient(46% 82% at 88% 12%, rgba(180, 240, 60, 0.2), transparent 70%);
  z-index: 0;
  pointer-events: none;
}

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

.page-faq .faq-hero-copy .eyebrow {
  display: inline-block;
}

.page-faq h1 {
  margin: var(--s3) 0;
  max-width: 15ch;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-shadow: 0 0 30px rgba(180, 240, 60, 0.25);
}

.page-faq .faq-hero .lede {
  max-width: 46ch;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.85;
}

.page-faq .faq-search {
  display: grid;
  gap: var(--s1);
  margin-top: var(--s4);
  max-width: 520px;
}

.page-faq .faq-search label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-faq .faq-search input {
  box-sizing: border-box;
  width: 100%;
  padding: 15px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--slate);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-search input::placeholder {
  color: #6C7B87;
}

.page-faq .faq-search input:focus {
  border-color: var(--lime);
  box-shadow: 0 0 0 3px rgba(180, 240, 60, 0.18);
}

.page-faq .faq-search-hint {
  margin: 0 0 0 var(--s2);
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-hero-art {
  position: relative;
  border-radius: var(--r-l);
  overflow: hidden;
  box-shadow: 0 30px 70px -40px rgba(123, 77, 255, 0.75);
}

.page-faq .faq-hero-art::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
  background: linear-gradient(90deg, var(--lime), var(--cyan), var(--violet));
}

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

/* ---------- 双栏问答棋盘 ---------- */

.page-faq .faq-shell {
  display: grid;
  gap: var(--s5);
  align-items: start;
}

.page-faq .faq-rail {
  padding: var(--s3);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(155deg, var(--slate2), var(--slate));
}

.page-faq .faq-rail-title {
  margin: 0 0 var(--s2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-faq .faq-chips {
  display: flex;
  gap: var(--s1);
  overflow-x: auto;
  padding-bottom: var(--s1);
  scrollbar-width: none;
}

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

.page-faq .faq-chips .chip {
  display: inline-flex;
  align-items: center;
  flex: none;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-chips .chip:nth-child(1):hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-faq .faq-chips .chip:nth-child(2):hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-chips .chip:nth-child(3):hover {
  border-color: var(--violet);
  color: #B9A6FF;
}

.page-faq .faq-chips .chip:nth-child(4):hover {
  border-color: var(--clay);
  color: var(--clay);
}

.page-faq .faq-rail-note {
  margin: var(--s3) 0 var(--s2);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-rail-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 240, 60, 0.4);
}

.page-faq .faq-rail-link:hover {
  border-bottom-color: var(--lime);
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  padding-top: var(--s5);
  scroll-margin-top: 110px;
}

.page-faq .faq-group:first-child {
  padding-top: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--s5);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-bottom: var(--s2);
}

.page-faq .faq-group-index {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 34px);
  letter-spacing: -0.01em;
}

.page-faq .faq-group-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}

.page-faq .faq-group-note {
  margin: 0 0 var(--s3);
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq #tickets .faq-group-index { color: var(--lime); }
.page-faq #data .faq-group-index { color: var(--cyan); }
.page-faq #account .faq-group-index { color: #B9A6FF; }
.page-faq #service .faq-group-index { color: var(--clay); }

.page-faq .faq-data-art {
  border-radius: var(--r-l);
  overflow: hidden;
  margin-bottom: var(--s3);
}

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

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s2);
  margin: 0 0 var(--s4);
  padding: 0;
  list-style: none;
}

.page-faq .faq-stats li {
  padding: var(--s2) var(--s3);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: rgba(18, 28, 36, 0.75);
}

.page-faq .faq-stat-num {
  display: block;
  font-size: 26px;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stats li:nth-child(2) .faq-stat-num { color: var(--cyan); }
.page-faq .faq-stats li:nth-child(3) .faq-stat-num { color: var(--clay); }
.page-faq .faq-stats li:nth-child(4) .faq-stat-num { color: #B9A6FF; }

.page-faq .faq-stat-cap {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 折叠卡片 ---------- */

.page-faq .faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: linear-gradient(158deg, var(--slate2), var(--slate));
  overflow: hidden;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: #3B4B58;
}

.page-faq .faq-item[open] {
  border-color: rgba(180, 240, 60, 0.45);
  box-shadow: 0 18px 44px -30px rgba(180, 240, 60, 0.9);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: var(--s2);
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -3px;
}

.page-faq .faq-no {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-q {
  flex: 1;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-arrow {
  flex: none;
  width: 11px;
  height: 11px;
  margin-right: 4px;
  border-right: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(-135deg);
}

.page-faq .faq-item[open] .faq-no {
  color: var(--lime);
}

.page-faq .faq-a {
  padding: 0 18px 18px 46px;
  font-size: 15.5px;
  line-height: 1.85;
  color: #C6D1D9;
  animation: faqOpen 0.28s var(--ease);
}

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

.page-faq .faq-a a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 240, 60, 0.4);
}

.page-faq .faq-a a:hover {
  border-bottom-color: var(--lime);
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 收尾引导 ---------- */

.page-faq .faq-cta {
  position: relative;
  display: grid;
  gap: var(--s4);
  margin-top: var(--s6);
  padding: var(--s5) var(--s4);
  border: 1px solid rgba(180, 240, 60, 0.28);
  border-radius: var(--r-l);
  background:
    linear-gradient(125deg, rgba(123, 77, 255, 0.28), transparent 58%),
    linear-gradient(320deg, rgba(255, 122, 51, 0.2), transparent 60%),
    var(--slate);
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 240, 60, 0.28), transparent 70%);
  pointer-events: none;
}

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

.page-faq .faq-cta h2 {
  margin: var(--s2) 0;
  font-size: clamp(24px, 4.2vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  align-items: center;
}

.page-faq .faq-cta-actions .copy-chip {
  text-decoration: none;
}

.page-faq .faq-cta-actions .mono {
  font-family: var(--font-mono);
  font-size: 13px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: var(--s6);
    padding-bottom: var(--s7);
  }

  .page-faq .faq-shell {
    grid-template-columns: 0.34fr 0.66fr;
    gap: var(--s6);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    padding: var(--s4) var(--s3);
  }

  .page-faq .faq-chips {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-chips .chip {
    justify-content: flex-start;
    width: 100%;
    box-sizing: border-box;
  }

  .page-faq .faq-item summary {
    padding: 20px 24px;
  }

  .page-faq .faq-a {
    padding: 0 24px 22px 60px;
    font-size: 16px;
  }

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

  .page-faq .faq-cta {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    padding: var(--s6) var(--s5);
  }

  .page-faq .faq-cta-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-arrow,
  .page-faq .faq-chips .chip,
  .page-faq .faq-search input {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }

  .page-faq .faq-a {
    animation: none;
  }
}