.page-faq {
  --faq-cut: 20px;
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .acc-cyan { --acc: var(--neon-cyan); }
.page-faq .acc-ice { --acc: var(--league-ice); }
.page-faq .acc-amber { --acc: var(--season-amber); }
.page-faq .acc-sage { --acc: var(--muted-sage); }
.page-faq .acc-orange { --acc: var(--signal-orange); }
.page-faq .acc-red { --acc: var(--whistle-red); }

.page-faq .faq-wrap {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(22px, 3.6vw, 48px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: end;
}

.page-faq .faq-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

.page-faq .faq-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(38px, 6.6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--chalk-white);
}

.page-faq .faq-title::after {
  content: "";
  display: block;
  width: clamp(120px, 22vw, 260px);
  height: 6px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--league-ice) 58%, transparent);
  transform: skewX(-18deg);
}

.page-faq .faq-lead {
  margin: 24px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--muted-sage);
}

.page-faq .faq-hero-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-chalk);
  font-size: 13px;
  color: var(--muted-sage);
}

.page-faq .faq-hero-facts .num {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-right: 5px;
}

.page-faq .media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--charcoal-panel);
  box-shadow: inset 0 0 0 1px var(--line-chalk);
}

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

.page-faq .media-cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-hero-media .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted-sage);
  background: linear-gradient(180deg, rgba(7, 19, 15, 0), rgba(7, 19, 15, 0.92) 62%);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  margin-top: clamp(52px, 7vw, 92px);
}

.page-faq .faq-index-grid {
  margin-top: clamp(20px, 2.6vw, 32px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-idx-card {
  --acc: var(--neon-cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px 20px 24px;
  text-decoration: none;
  background: linear-gradient(158deg, rgba(20, 24, 26, 0.96), rgba(7, 19, 15, 0.86));
  box-shadow: inset 0 0 0 1px var(--line-chalk);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-idx-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--acc);
}

.page-faq .faq-idx-card:hover,
.page-faq .faq-idx-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: inset 0 0 0 1px var(--acc);
}

.page-faq .faq-idx-card:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 3px;
}

.page-faq .faq-idx-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-idx-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--acc);
}

.page-faq .faq-idx-count {
  font-size: 12px;
  color: var(--muted-sage);
  white-space: nowrap;
}

.page-faq .faq-idx-name {
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--chalk-white);
}

.page-faq .faq-idx-desc {
  font-size: 13px;
  line-height: 1.68;
  color: var(--muted-sage);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  --acc: var(--neon-cyan);
  margin-top: clamp(52px, 7vw, 96px);
  scroll-margin-top: 86px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-left: 16px;
  border-left: 3px solid var(--acc);
}

.page-faq .faq-group-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--acc);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.005em;
  color: var(--chalk-white);
}

.page-faq .faq-group-note {
  margin: 14px 0 0;
  padding-left: 19px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted-sage);
}

.page-faq .faq-group-body {
  display: grid;
  gap: clamp(20px, 2.8vw, 38px);
}

.page-faq .faq-list {
  margin-top: clamp(18px, 2.4vw, 28px);
  max-width: 900px;
  border-top: 1px solid var(--line-chalk);
}

.page-faq .faq-group-body .faq-list {
  max-width: none;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-chalk);
}

.page-faq .faq-item[open] {
  background: linear-gradient(180deg, rgba(20, 24, 26, 0.72), rgba(20, 24, 26, 0));
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.58;
  color: var(--chalk-white);
  transition: color 0.16s var(--ease);
}

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

.page-faq .faq-q:hover { color: var(--acc); }

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

.page-faq .faq-plus {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-plus::before,
.page-faq .faq-plus::after {
  content: "";
  position: absolute;
  background: var(--acc);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .faq-plus::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-faq .faq-plus::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-plus::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 4px 22px 30px;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-sage);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .fd {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 1px 6px;
  color: var(--chalk-white);
  background: rgba(53, 242, 192, 0.08);
  box-shadow: inset 0 0 0 1px rgba(53, 242, 192, 0.22);
  white-space: nowrap;
}

.page-faq .faq-inline-link {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link:hover {
  color: var(--signal-orange);
}

.page-faq .faq-media {
  margin: 0;
}

.page-faq .faq-media .media-caption {
  padding: 12px 4px 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--fog);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  margin-top: clamp(56px, 7.5vw, 100px);
}

.page-faq .faq-tail-inner {
  position: relative;
  padding: clamp(26px, 4vw, 46px) clamp(22px, 3.6vw, 52px);
  background: linear-gradient(120deg, rgba(255, 122, 47, 0.12), rgba(20, 24, 26, 0.9) 46%);
  box-shadow: inset 0 0 0 1px var(--line-chalk);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-faq .faq-tail-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.1;
  color: var(--chalk-white);
  max-width: 28ch;
}

.page-faq .faq-tail-text {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-sage);
}

.page-faq .faq-tail-links {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.04fr 0.96fr;
    gap: clamp(30px, 4.4vw, 60px);
  }

  .page-faq .faq-group {
    scroll-margin-top: 40px;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-group-body--split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-a {
    padding-left: 26px;
  }

  .page-faq .faq-tail-links .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-idx-card,
  .page-faq .faq-q,
  .page-faq .faq-plus::before,
  .page-faq .faq-plus::after {
    transition: none;
  }
}