.page-faq {
  --faq-g1: var(--turf);
  --faq-g2: var(--rose);
  --faq-g3: var(--cyan);
  --faq-g4: var(--amber);
  --faq-g5: var(--clay);
  background: var(--paper);
  color: var(--rock);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(96px, 13vw, 150px) 0 clamp(40px, 6vw, 68px);
  background:
    radial-gradient(120% 92% at 86% 0%, rgba(242, 178, 51, 0.18) 0%, rgba(11, 27, 43, 0) 58%),
    repeating-linear-gradient(90deg, rgba(95, 192, 140, 0.10) 0 2px, rgba(11, 27, 43, 0) 2px 104px),
    linear-gradient(162deg, #0B1B2B 0%, #12293F 48%, #0E382E 100%);
  color: var(--field);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero .breadcrumb__list,
.page-faq .faq-hero .breadcrumb__list a {
  color: rgba(247, 250, 248, 0.72);
}

.page-faq .faq-hero .breadcrumb__list a:hover,
.page-faq .faq-hero .breadcrumb__list a:focus-visible {
  color: var(--amber);
}

.page-faq .faq-hero .section-label {
  color: var(--amber);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 46px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 6.2vw, 80px);
  line-height: 1;
  letter-spacing: -0.008em;
  color: var(--field);
  max-width: 17ch;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(247, 250, 248, 0.82);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(247, 250, 248, 0.18);
  border: 1px solid rgba(247, 250, 248, 0.18);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(11, 27, 43, 0.55);
}

.page-faq .faq-hero__facts span {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(247, 250, 248, 0.7);
}

.page-faq .faq-hero__facts b {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 600;
  color: var(--amber);
  line-height: 1;
}

.page-faq .faq-hero__media {
  margin-top: clamp(32px, 5vw, 58px);
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding: clamp(40px, 6vw, 84px) 0 clamp(48px, 7vw, 96px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

/* 索引列 */
.page-faq .faq-index {
  border-top: 2px solid var(--night);
  padding-top: 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .faq-index__cap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--paper-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--night);
}

.page-faq .faq-index__cap .mono {
  color: var(--clay);
}

.page-faq .faq-index__list a {
  display: block;
  padding: 5px 0 5px 12px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.55;
  color: rgba(58, 65, 73, 0.78);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--turf);
  border-left-color: var(--turf);
  background: rgba(30, 107, 69, 0.07);
}

/* 分组 */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(38px, 5vw, 66px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group--pace { --accent: var(--faq-g1); }
.page-faq .faq-group--draw { --accent: var(--faq-g2); }
.page-faq .faq-group--venue { --accent: var(--faq-g3); }
.page-faq .faq-group--update { --accent: var(--faq-g4); }
.page-faq .faq-group--cite { --accent: var(--faq-g5); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding: 14px 0 16px;
  border-top: 3px solid var(--accent);
  border-bottom: 1px solid var(--paper-edge);
  margin-bottom: 4px;
}

.page-faq .faq-group__num {
  padding-top: 7px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.1;
  color: var(--night);
}

.page-faq .faq-group__desc {
  grid-column: 2;
  margin: 6px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(58, 65, 73, 0.8);
}

/* 问答条目 */
.page-faq .q-item {
  scroll-margin-top: 110px;
  border-bottom: 1px solid var(--paper-edge);
}

.page-faq .q-item:target {
  border-left: 3px solid var(--amber);
  padding-left: 12px;
  background: rgba(242, 178, 51, 0.09);
}

.page-faq .q-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .q-item__num {
  flex: none;
  padding-top: 5px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-faq .q-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--night);
  transition: color 0.18s ease;
}

.page-faq .q-item > summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 5px;
  border-right: 2px solid var(--accent, var(--moss));
  border-bottom: 2px solid var(--accent, var(--moss));
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}

.page-faq .q-item[open] > summary::after {
  transform: rotate(-135deg);
}

.page-faq .q-item > summary:hover .q-item__q,
.page-faq .q-item[open] > summary .q-item__q {
  color: var(--turf);
}

.page-faq .q-item__body {
  padding: 0 0 22px 40px;
  animation: faq-open 0.24s ease both;
}

.page-faq .q-item__body p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

.page-faq .q-item__body p:last-child {
  margin-bottom: 0;
}

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

.page-faq .q-item__body a:hover {
  color: var(--night);
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 插图 */
.page-faq .faq-figure {
  margin: 26px 0 0;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  max-width: 62ch;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.72;
  letter-spacing: 0.02em;
  color: rgba(58, 65, 73, 0.66);
}

/* ---------- 页尾行动区 ---------- */
.page-faq .faq-foot {
  padding: clamp(40px, 6vw, 72px) 0 clamp(46px, 6vw, 80px);
  background:
    repeating-linear-gradient(90deg, rgba(95, 192, 140, 0.09) 0 2px, rgba(11, 27, 43, 0) 2px 96px),
    linear-gradient(150deg, #12293F 0%, #0B1B2B 100%);
  color: var(--field);
}

.page-faq .faq-foot__inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-foot__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.08;
  color: var(--field);
}

.page-faq .faq-foot__text {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 250, 248, 0.78);
}

.page-faq .faq-foot__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-faq .faq-foot__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 178, 51, 0.5);
  padding-bottom: 2px;
}

.page-faq .faq-foot__link:hover {
  color: var(--amber-lift);
  border-bottom-color: var(--amber-lift);
}

.page-faq .faq-foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(247, 250, 248, 0.18);
}

.page-faq .faq-foot__links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(247, 250, 248, 0.66);
  text-decoration: none;
}

.page-faq .faq-foot__links a:hover,
.page-faq .faq-foot__links a:focus-visible {
  color: var(--amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-foot__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: 36px;
  }

  .page-faq .faq-foot__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    padding-right: 8px;
  }

  .page-faq .faq-index::-webkit-scrollbar {
    width: 6px;
  }

  .page-faq .faq-index::-webkit-scrollbar-thumb {
    background: rgba(58, 65, 73, 0.22);
    border-radius: 999px;
  }

  .page-faq .q-item__body {
    padding-left: 46px;
  }
}

@media (max-width: 520px) {
  .page-faq .q-item__body {
    padding-left: 0;
  }

  .page-faq .faq-hero__facts li {
    padding: 12px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .q-item__body {
    animation: none;
  }

  .page-faq .q-item > summary::after,
  .page-faq .q-item__q,
  .page-faq .faq-index__list a {
    transition: none;
  }
}