.page-faq {
  --faq-index-w: 236px;
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(26px, 5vw, 58px) 0 clamp(24px, 4vw, 42px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(
    to right,
    var(--line-soft) 0 1px,
    transparent 1px 92px
  );
  opacity: 0.7;
  pointer-events: none;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-gold);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: var(--fs-64);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0.06em;
  color: var(--c-ivory);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  margin-top: 18px;
  background: var(--c-lime);
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-family: var(--font-editorial);
  font-size: var(--fs-20);
  font-weight: 600;
  line-height: 1.72;
  color: var(--text-mid);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 30px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-14);
  color: var(--text-dim);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}

.page-faq .faq-hero__facts .num {
  font-family: var(--font-data);
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--c-lime);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(28px, 4vw, 54px) 0 clamp(44px, 6vw, 88px);
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 84px);
    align-items: start;
  }
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--text-dim);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--text-mid);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-gold);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--c-ivory);
  border-color: var(--line-strong);
}

.page-faq .faq-index__list a[aria-current="true"],
.page-faq .faq-index__list a[aria-current="location"] {
  color: var(--c-night);
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-faq .faq-index__list a[aria-current="true"] .faq-index__num,
.page-faq .faq-index__list a[aria-current="location"] .faq-index__num {
  color: var(--c-night);
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__list li {
    border-bottom: 1px solid var(--line-soft);
  }

  .page-faq .faq-index__list a {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 8px;
    padding: 12px 0;
    border: 0;
    white-space: normal;
    line-height: 1.55;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    color: var(--c-lime);
    background: transparent;
  }

  .page-faq .faq-index__list a[aria-current="true"],
  .page-faq .faq-index__list a[aria-current="location"] {
    background: transparent;
    color: var(--c-lime);
  }

  .page-faq .faq-index__list a[aria-current="true"] .faq-index__num,
  .page-faq .faq-index__list a[aria-current="location"] .faq-index__num {
    color: var(--c-lime);
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 24px;
  padding-bottom: clamp(34px, 4.5vw, 60px);
  margin-bottom: clamp(34px, 4.5vw, 60px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.page-faq .faq-section__num {
  flex: none;
  padding: 3px 9px;
  border: 1px solid var(--c-gold);
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
  color: var(--c-ivory);
}

.page-faq .faq-section__intro {
  max-width: 68ch;
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text-mid);
}

/* ---------- 三步 ---------- */
.page-faq .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 clamp(24px, 3vw, 34px);
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .step {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--panel);
}

.page-faq .step__idx {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-lime);
}

.page-faq .step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-ivory);
}

.page-faq .step__body {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-mid);
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  --frame-ratio: 3 / 2;
  margin: clamp(20px, 3vw, 34px) 0 0;
}

.page-faq .faq-media .media-frame__img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-media--wide {
  --frame-ratio: 2 / 1;
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-group {
  border-top: 1px solid var(--line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa[open] {
  background: var(--panel);
  box-shadow: inset 3px 0 0 var(--c-lime);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 22px;
  gap: 12px;
  align-items: baseline;
  padding: clamp(14px, 1.9vw, 20px) clamp(12px, 1.8vw, 20px);
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  font-weight: 500;
  line-height: 1.65;
  color: var(--c-ivory);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--c-lime);
}

.page-faq .qa__num {
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

.page-faq .qa__mark {
  position: relative;
  align-self: center;
  justify-self: end;
  width: 14px;
  height: 14px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--c-lime);
  transition: transform var(--dur) var(--ease);
}

.page-faq .qa__mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 22px;
  gap: 12px;
  padding: 0 clamp(12px, 1.8vw, 20px) clamp(16px, 2.2vw, 24px);
  animation: faqOpen var(--dur-slow) var(--ease);
}

.page-faq .qa__a > * {
  grid-column: 2;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--text-mid);
}

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

.page-faq .qa__a strong {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--c-lime);
}

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

@media (max-width: 480px) {
  .page-faq .qa__q,
  .page-faq .qa__a {
    grid-template-columns: 26px minmax(0, 1fr) 18px;
    gap: 8px;
  }
}

/* ---------- 主客场分栏 ---------- */
.page-faq .split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 clamp(24px, 3vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .split-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .split-panel__side {
  padding: clamp(18px, 2.4vw, 28px);
}

.page-faq .split-panel__side--home {
  background: var(--panel);
}

.page-faq .split-panel__side--away {
  background: var(--panel-deep);
}

.page-faq .split-panel__tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 10px;
  border: 1px solid currentColor;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.13em;
}

.page-faq .split-panel__side--home .split-panel__tag {
  color: var(--c-lime);
}

.page-faq .split-panel__side--away .split-panel__tag {
  color: var(--c-gold);
}

.page-faq .split-panel__body {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.88;
  color: var(--text-mid);
}

/* ---------- 定位球列表 ---------- */
.page-faq .metric-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .metric-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px 22px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 640px) {
  .page-faq .metric-list > div {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-faq .metric-list dt {
  font-family: var(--font-data);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-aqua);
}

.page-faq .metric-list dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.88;
  color: var(--text-mid);
}

/* ---------- 联系方式 ---------- */
.page-faq .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 20px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .contact-grid__item--wide {
    grid-column: 1 / -1;
  }
}

.page-faq .contact-grid__item {
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--panel);
}

.page-faq .contact-k {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--c-gold);
}

.page-faq .contact-v {
  margin: 0;
  font-family: var(--font-data);
  font-size: var(--fs-16);
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-ivory);
  word-break: break-word;
}

.page-faq .contact-v--text {
  font-family: var(--font-body);
  font-size: var(--fs-14);
  font-weight: 400;
  color: var(--text-mid);
}

.page-faq .contact-note {
  max-width: 68ch;
  margin: 0 0 20px;
  padding-left: 16px;
  border-left: 2px solid var(--c-orange);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .contact-links {
  max-width: 68ch;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--text-mid);
}

.page-faq .contact-links a {
  color: var(--c-aqua);
  text-decoration: none;
  border-bottom: 1px solid var(--c-aqua);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .contact-links a:hover,
.page-faq .contact-links a:focus-visible {
  color: var(--c-lime);
  border-color: var(--c-lime);
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }

  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .faq-index__list a {
    transition: none;
  }
}