.page-faq {
  --faq-glow: rgba(53, 240, 208, 0.14);
  --faq-blue: rgba(61, 123, 255, 0.18);
  color: var(--c-text);
}

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

.page-faq .faq-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  line-height: 1.18;
  letter-spacing: 0.005em;
  margin: 0.4rem 0 0.8rem;
}

.page-faq .faq-sub {
  margin: 0;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(1.75rem, 5vw, 3.25rem) clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--c-line);
  background:
    linear-gradient(180deg, rgba(13, 27, 46, 0.92), rgba(6, 16, 31, 0.2) 62%),
    radial-gradient(120% 95% at 86% 0%, var(--faq-blue), transparent 64%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(39, 65, 95, 0.4) 0 1px,
    transparent 1px 84px
  );
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 1.15rem;
  font-size: 0.79rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 6.2vw, 3.3rem);
  line-height: 1.06;
  letter-spacing: 0.005em;
  margin: 0.35rem 0 1rem;
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.page-faq .faq-hero__aside {
  display: grid;
  gap: 0.6rem;
  align-content: start;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cyan);
  background: linear-gradient(160deg, rgba(13, 27, 46, 0.96), rgba(20, 38, 61, 0.7));
}

.page-faq .faq-hero__aside .meta {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
  .page-faq .faq-hero__aside {
    margin-bottom: 0.35rem;
  }
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-entry {
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
}

.page-faq .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 1.6rem;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .entry-card {
  display: grid;
  gap: 0.42rem;
  align-content: start;
  padding: 1.35rem 1.25rem 1.5rem;
  background: var(--c-panel);
  color: inherit;
  text-decoration: none;
  transition: background 0.18s var(--ease);
}

.page-faq .entry-card:hover,
.page-faq .entry-card:focus-visible {
  background: var(--c-panel-2);
}

.page-faq .entry-card__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--c-orange);
}

.page-faq .entry-card__title {
  font-family: var(--font-display);
  font-size: 1.14rem;
  letter-spacing: 0.03em;
}

.page-faq .entry-card__text {
  font-size: 0.89rem;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-faq .entry-card__go {
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

@media (min-width: 640px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .entry-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 四步时间轴 ---------- */
.page-faq .faq-timeline {
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(6, 16, 31, 0.4), rgba(13, 27, 46, 0.55));
}

.page-faq .timeline {
  margin-top: 1.75rem;
}

.page-faq .timeline__art {
  margin-bottom: 1.75rem;
}

.page-faq .timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-faq .step {
  position: relative;
  padding-top: 1.45rem;
  border-top: 1px solid var(--c-line);
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 2.25rem;
  height: 3px;
  background: var(--c-orange);
}

.page-faq .step__num {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--c-orange);
}

.page-faq .step__title {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
}

.page-faq .step__text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.72;
  color: var(--c-muted);
}

@media (min-width: 900px) {
  .page-faq .timeline__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

/* ---------- 分类问答 ---------- */
.page-faq .faq-qa {
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
}

.page-faq .qa-group {
  margin-top: 2.1rem;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--c-cyan);
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: 0.05em;
}

.page-faq .qa-group__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

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

.page-faq .qa-item__q {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.95rem 0;
  cursor: pointer;
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
  list-style: none;
}

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

.page-faq .qa-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--c-cyan);
  transition: color 0.16s var(--ease);
}

.page-faq .qa-item[open] .qa-item__q::after {
  content: "–";
  color: var(--c-orange);
}

.page-faq .qa-item__q:hover {
  color: var(--c-cyan);
}

.page-faq .qa-item__a {
  margin: 0 0 1.1rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--c-panel-2);
  font-size: 0.91rem;
  line-height: 1.85;
  color: var(--c-muted);
}

/* ---------- 账号切换与阵容确认 ---------- */
.page-faq .faq-switch {
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
  border-top: 1px solid var(--c-line);
  background: radial-gradient(90% 120% at 8% 0%, rgba(53, 240, 208, 0.08), transparent 62%);
}

.page-faq .switch-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .switch-list {
  list-style: none;
  margin: 1.2rem 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .switch-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-faq .switch-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 6px;
  height: 6px;
  background: var(--c-amber);
  transform: rotate(45deg);
}

@media (min-width: 900px) {
  .page-faq .switch-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .support-panel {
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-cyan);
  background:
    linear-gradient(115deg, var(--faq-glow), rgba(13, 27, 46, 0.25) 58%),
    var(--c-panel);
}

.page-faq .support-text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-faq .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

@media (min-width: 900px) {
  .page-faq .support-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
    gap: 2rem;
  }
  .page-faq .support-actions {
    justify-content: flex-end;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-hero__title {
    font-size: 1.85rem;
  }
  .page-faq .entry-card {
    padding: 1.15rem 1rem 1.3rem;
  }
  .page-faq .support-actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .entry-card,
  .page-faq .qa-item__q::after {
    transition: none;
  }
}