.page-faq {
  --faq-pad: clamp(16px, 4vw, 32px);
  --faq-top: calc(var(--header-h) + 18px);
  color: var(--c-text);
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--w-wide);
  margin-inline: auto;
  padding-inline: var(--faq-pad);
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}
.page-faq .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
}
.page-faq .crumbs-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-faq .crumbs-link {
  color: var(--c-muted);
  text-decoration: none;
}
.page-faq .crumbs-link:hover,
.page-faq .crumbs-link:focus-visible {
  color: var(--c-cyan);
}
.page-faq .crumbs-sep {
  color: var(--c-amber);
}
.page-faq .crumbs-current {
  color: var(--c-cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(36px, 7vw, 78px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 86% 8%, rgba(43, 232, 200, .1), transparent 62%),
    linear-gradient(180deg, rgba(3, 17, 14, .92), rgba(6, 30, 25, 0) 72%);
}
.page-faq .faq-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
}
.page-faq .faq-hero-main {
  min-width: 0;
}
.page-faq .faq-hero .index-label {
  color: var(--c-orange);
}
.page-faq .faq-h1 {
  margin: 14px 0 0;
  font-family: var(--f-display);
  font-weight: 900;
  letter-spacing: -.02em;
  font-size: clamp(33px, 6.2vw, 68px);
  line-height: 1.04;
  word-break: break-word;
}
.page-faq .faq-h1 em {
  font-style: normal;
  color: var(--c-cyan);
}
.page-faq .faq-hero-lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--c-muted);
}
.page-faq .faq-hero-side {
  min-width: 0;
  padding-left: 16px;
  border-left: 1px solid var(--c-line);
  align-self: end;
}
.page-faq .faq-side-num {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}
.page-faq .faq-side-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(34px, 6vw, 68px);
}
.page-faq .faq-body-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}
.page-faq .faq-index {
  min-width: 0;
}
.page-faq .faq-index .index-label {
  color: var(--c-muted);
}
.page-faq .faq-index-list {
  display: flex;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-index-item {
  flex: 0 0 auto;
}
.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--c-text);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(3, 17, 14, .55);
  transition: border-color .16s ease, background-color .16s ease, transform .16s ease;
}
.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-color: var(--c-cyan);
  background: rgba(43, 232, 200, .07);
  transform: translateY(-2px);
  outline: none;
}
.page-faq .faq-index-link:focus-visible {
  box-shadow: 0 0 0 2px var(--c-cyan);
}
.page-faq .faq-index-num {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-orange);
}
.page-faq .faq-index-name {
  font-size: 15px;
  font-weight: 600;
}
.page-faq .faq-index-count {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-muted);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-cat {
  padding-top: clamp(28px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.page-faq .faq-cat:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}
.page-faq .faq-cat-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-cat-num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-orange);
}
.page-faq .faq-cat-title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -.01em;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.2;
}
.page-faq .faq-cat-count {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-muted);
}
.page-faq .faq-cat-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg-deep);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq .faq-figcap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--c-line);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: 16px;
  border-top: 1px solid var(--c-line);
}
.page-faq .qa {
  border-bottom: 1px solid var(--c-line);
}
.page-faq .qa-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 42px 15px 2px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--c-text);
  transition: color .16s ease;
}
.page-faq .qa-q::-webkit-details-marker {
  display: none;
}
.page-faq .qa-q::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 12px;
  font-family: var(--f-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-cyan);
}
.page-faq .qa[open] > .qa-q::after {
  content: "\2212";
}
.page-faq .qa-q:hover {
  color: var(--c-cyan);
}
.page-faq .qa-q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  border-radius: var(--radius);
}
.page-faq .qa-mark {
  flex: none;
  padding-top: 4px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-cyan-deep);
}
.page-faq .qa-a {
  margin: 0 0 18px 3px;
  padding: 2px 42px 6px 20px;
  border-left: 2px solid var(--c-cyan);
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.85;
  animation: faqPanelIn .22s ease-out both;
}
.page-faq .qa-a p {
  margin: 0;
}
.page-faq .faq-inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-cyan-deep);
}
.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--c-text);
  border-bottom-color: var(--c-orange);
}

@keyframes faqPanelIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 速查区 ---------- */
.page-faq .faq-quick {
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-deep);
  padding-block: clamp(34px, 6vw, 66px);
}
.page-faq .faq-sec-head {
  max-width: 68ch;
}
.page-faq .faq-sec-head .index-label {
  color: var(--c-orange);
}
.page-faq .faq-h2 {
  margin: 8px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -.01em;
  font-size: clamp(23px, 3.6vw, 38px);
  line-height: 1.15;
}
.page-faq .faq-sub {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}
.page-faq .quick-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .quick-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--c-bg-deep);
  transition: background-color .16s ease;
}
.page-faq .quick-card:hover {
  background: rgba(43, 232, 200, .06);
}
.page-faq .quick-num {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-orange);
}
.page-faq .quick-q {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}
.page-faq .quick-a {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  border-top: 1px solid var(--c-line);
  padding-block: clamp(34px, 6vw, 68px);
}
.page-faq .faq-help .index-label {
  color: var(--c-orange);
}
.page-faq .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-faq .help-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--c-bg);
}
.page-faq .help-label {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-orange);
}
.page-faq .help-value {
  font-family: var(--f-mono);
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--c-cyan);
  word-break: break-all;
}
.page-faq .help-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}
.page-faq .help-link {
  align-self: flex-start;
  margin-top: auto;
  padding-bottom: 2px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--c-cyan-deep);
}
.page-faq .help-link:hover,
.page-faq .help-link:focus-visible {
  color: var(--c-text);
  border-bottom-color: var(--c-orange);
}
.page-faq .faq-legal {
  margin: 20px 0 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.9;
  color: var(--c-muted);
}
.page-faq .faq-legal + .faq-legal {
  margin-top: 6px;
}

/* ---------- 显现动效 ---------- */
.page-faq [data-reveal].is-in {
  animation: faqFadeUp .5s ease-out both;
}
@keyframes faqFadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body-inner {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-top);
  }
  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
  }
  .page-faq .faq-index-item {
    flex: 1 1 auto;
  }
  .page-faq .faq-index-link {
    padding: 12px 10px 12px 0;
    border: 0;
    border-bottom: 1px solid var(--c-line);
    border-radius: 0;
    background: transparent;
  }
  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    background: rgba(43, 232, 200, .06);
    box-shadow: inset 2px 0 0 var(--c-cyan);
  }
}

@media (min-width: 820px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
  .page-faq .quick-card {
    grid-column: span 5;
  }
  .page-faq .quick-card:nth-child(even) {
    grid-column: span 3;
  }
}

@media (min-width: 780px) {
  .page-faq .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-a {
    animation: none;
  }
  .page-faq [data-reveal].is-in {
    animation: none;
  }
  .page-faq .faq-index-link:hover {
    transform: none;
  }
}
</main>