.page-faq {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 104px);
}

.page-faq .faq-shell {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(28px, 5vw, 64px) var(--gutter) 0;
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .crumbs__sep {
  opacity: 0.5;
}

.page-faq .crumbs [aria-current="page"] {
  color: var(--paper-2);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-faq .faq-intro h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 8.5vw, 88px);
  line-height: 0.94;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.page-faq .faq-intro h1 .signal {
  display: block;
  color: var(--signal);
}

.page-faq .faq-intro__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(244, 235, 221, 0.8);
}

/* ---------- 四组快捷入口 ---------- */
.page-faq .faq-quick {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 4px;
}

.page-faq .faq-quick__item {
  --band: var(--signal);
  display: grid;
  gap: 3px;
  padding: 12px 14px 14px;
  text-decoration: none;
  color: var(--paper);
  background: var(--ink-2);
  border: 1px solid rgba(168, 184, 200, 0.2);
  border-top: 3px solid var(--band);
  border-radius: 3px 14px 3px 3px;
  transition: transform var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-quick__item:nth-child(2) { --band: var(--orange); }
.page-faq .faq-quick__item:nth-child(3) { --band: var(--amber); }
.page-faq .faq-quick__item:nth-child(4) { --band: var(--teal-deep); }

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  transform: translateY(-2px);
  background: var(--ink-3);
  border-color: rgba(41, 242, 176, 0.45);
  border-top-color: var(--band);
}

.page-faq .faq-quick__item:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-quick__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--band);
}

.page-faq .faq-quick__label {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
}

.page-faq .faq-quick__meta {
  font-size: 12px;
  line-height: 1.45;
  color: var(--slate);
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-rail {
  display: grid;
  gap: 14px;
  align-self: start;
  min-width: 0;
}

.page-faq .faq-rail__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-rail__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(168, 184, 200, 0.24);
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 8px 11px 12px;
  border-left: 2px solid transparent;
  color: rgba(244, 235, 221, 0.7);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.3;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--signal);
  background: rgba(41, 242, 176, 0.08);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-rail__idx {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--signal);
  flex: none;
}

.page-faq .faq-rail__note {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(168, 184, 200, 0.22);
  border-left: 3px solid var(--amber);
  border-radius: 2px 12px 2px 2px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-rail__note b {
  color: var(--amber);
  font-weight: 600;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-faq .faq-group {
  --band: var(--signal);
  scroll-margin-top: 88px;
  padding-block: clamp(26px, 4vw, 46px) clamp(8px, 1.6vw, 16px);
  border-top: 1px solid rgba(168, 184, 200, 0.2);
  min-width: 0;
}

.page-faq .faq-group--replay { --band: var(--orange); }
.page-faq .faq-group--compare { --band: var(--amber); }
.page-faq .faq-group--desktop { --band: var(--teal-deep); }
.page-faq .faq-group--support { --band: var(--slate); }

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.page-faq .faq-group__num {
  flex: none;
  padding-top: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--band);
}

.page-faq .faq-group__head h2 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.02;
  letter-spacing: -0.005em;
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border-bottom: 1px solid rgba(168, 184, 200, 0.16);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px 2px 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--ease);
}

.page-faq .qa > summary::-webkit-details-marker { display: none; }
.page-faq .qa > summary::marker { content: ""; }

.page-faq .qa > summary:hover { color: var(--signal); }

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-faq .qa__sign {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(168, 184, 200, 0.45);
  border-radius: 50%;
  transition: transform var(--ease), border-color var(--ease);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  inset: 50% 5px auto;
  height: 1.5px;
  background: var(--signal);
  transform: translateY(-50%);
}

.page-faq .qa__sign::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .qa[open] .qa__sign {
  transform: rotate(45deg);
  border-color: var(--signal);
}

.page-faq .qa__body {
  display: grid;
  gap: 10px;
  margin-left: 2px;
  padding: 0 4px 20px 16px;
  border-left: 2px solid rgba(168, 184, 200, 0.18);
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 235, 221, 0.82);
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .qa__body strong {
  color: var(--signal);
  font-weight: 600;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 4px 0 18px;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(168, 184, 200, 0.22);
  background: var(--ink-2);
}

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

.page-faq .faq-figure figcaption {
  padding: 9px 14px;
  border-top: 1px solid rgba(168, 184, 200, 0.18);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

/* ---------- 快捷键表 ---------- */
.page-faq .keys {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  margin: 14px 0 4px;
  padding: 0;
  list-style: none;
}

.page-faq .keys li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  background: var(--ink-2);
  border-left: 3px solid var(--teal-deep);
  border-radius: 2px 10px 2px 2px;
  font-size: 13.5px;
  line-height: 1.4;
  color: rgba(244, 235, 221, 0.84);
}

.page-faq .keys kbd {
  flex: none;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--signal);
  background: rgba(41, 242, 176, 0.1);
  border: 1px solid rgba(41, 242, 176, 0.38);
  border-radius: 3px;
  white-space: nowrap;
}

/* ---------- 联系支持 ---------- */
.page-faq .support-card {
  display: grid;
  gap: 18px;
  margin-top: 20px;
  padding: clamp(18px, 3vw, 30px);
  background: linear-gradient(135deg, rgba(41, 242, 176, 0.12), rgba(12, 33, 56, 0.94) 58%);
  border: 1px solid rgba(41, 242, 176, 0.3);
  border-radius: var(--radius-card);
}

.page-faq .support-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.05;
}

.page-faq .support-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 235, 221, 0.82);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .support-rows {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .support-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .support-row span {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .support-row a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 176, 0.45);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-faq .support-row a:hover,
.page-faq .support-row a:focus-visible {
  border-bottom-color: var(--signal);
  background: rgba(41, 242, 176, 0.12);
}

/* ---------- 相关页面 ---------- */
.page-faq .faq-more {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-more a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  font-size: 13.5px;
  text-decoration: none;
  color: rgba(244, 235, 221, 0.78);
  border: 1px solid rgba(168, 184, 200, 0.22);
  border-radius: 2px 12px 2px 2px;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-more a::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--signal);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--paper);
  border-color: rgba(41, 242, 176, 0.5);
  background: rgba(41, 242, 176, 0.06);
}

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

@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-more {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .support-card {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 60px);
    row-gap: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-intro {
    grid-column: 2;
    grid-row: 1;
  }

  .page-faq .faq-rail {
    grid-column: 1;
    grid-row: 1 / span 2;
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-body {
    grid-column: 2;
    grid-row: 2;
  }

  .page-faq .faq-rail__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-rail__link {
    font-size: 14px;
    padding: 12px 10px 12px 14px;
  }

  .page-faq .qa > summary {
    font-size: 17px;
  }
}
<<<END>>>