.page-faq {
  --faq-rule: #1C3A33;
  --faq-swatch-a: #22F5C9;
  --faq-swatch-b: #0E8F79;
  --faq-swatch-c: #FF8A3D;
  --faq-swatch-d: #FFC46B;
  --faq-swatch-e: #9FB5AE;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: clamp(92px, 13vh, 148px);
}

.page-faq .faq-hero__frame {
  padding: clamp(22px, 3.4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: 10px 0 18px;
  font-size: clamp(32px, 5.6vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  max-width: 58ch;
  color: var(--paper);
  opacity: 0.86;
  margin-bottom: 22px;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

/* ---------- 主题索引带 ---------- */

.page-faq .faq-index {
  margin-top: clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-index__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 16px 0;
}

.page-faq .faq-index__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease), color 0.24s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--neon);
  background: var(--neon-wash);
  color: var(--neon);
}

.page-faq .faq-index__swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--faq-swatch-a);
}

.page-faq .faq-index__swatch--b { background: var(--faq-swatch-b); }
.page-faq .faq-index__swatch--c { background: var(--faq-swatch-c); }
.page-faq .faq-index__swatch--d { background: var(--faq-swatch-d); }
.page-faq .faq-index__swatch--e { background: var(--faq-swatch-e); }

/* ---------- 分组区块 ---------- */

.page-faq .faq-section {
  padding: clamp(56px, 8vw, 100px) 0 0;
  scroll-margin-top: 108px;
}

.page-faq .faq-head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 3.4vw, 44px);
}

.page-faq .faq-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-head__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon);
}

.page-faq .faq-head .editorial-title {
  margin: 8px 0 14px;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.24;
}

/* ---------- 问答网格 ---------- */

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-rule);
  transition: border-color 0.28s var(--ease);
}

.page-faq .qa[open] {
  border-bottom-color: rgba(34, 245, 201, 0.7);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 34px 1fr 18px;
  gap: 10px;
  align-items: start;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  transition: color 0.24s var(--ease);
}

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

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

.page-faq .qa__index {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-faq .qa__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.24s var(--ease);
}

.page-faq .qa__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  justify-self: end;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--muted);
  transition: transform 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .qa__mark::before { width: 14px; height: 1.5px; }
.page-faq .qa__mark::after { width: 1.5px; height: 14px; }

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

.page-faq .qa__a {
  padding: 0 0 20px 44px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .qa[open] .qa__a {
  animation: faq-reveal 0.3s var(--ease) both;
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 账号与收藏：主体 + 排查面板 ---------- */

.page-faq .faq-sync-visual {
  margin: 0 0 clamp(28px, 3.6vw, 44px);
  max-width: 900px;
}

.page-faq .faq-account {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3.6vw, 44px);
  align-items: start;
}

.page-faq .sync-panel {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 2.8vw, 32px);
  border: 1px solid var(--faq-rule);
  background: var(--ink-800);
  border-left: 3px solid var(--teal);
}

.page-faq .sync-panel__title {
  margin: 0;
  font-size: 18px;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .sync-svg {
  width: 100%;
  height: auto;
  max-width: 420px;
}

.page-faq .sync-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: syncstep;
}

.page-faq .sync-steps li {
  position: relative;
  padding: 0 0 14px 34px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--muted);
}

.page-faq .sync-steps li:last-child { padding-bottom: 0; }

.page-faq .sync-steps li::before {
  counter-increment: syncstep;
  content: counter(syncstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--faq-rule);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon);
}

.page-faq .sync-panel .btn {
  justify-self: start;
}

/* ---------- 提示带 ---------- */

.page-faq .cue-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: clamp(40px, 5.4vw, 72px) 5vw 0;
  padding: clamp(20px, 3vw, 32px);
  background: linear-gradient(92deg, rgba(255, 138, 61, 0.16) 0%, rgba(34, 245, 201, 0.08) 100%);
  border-left: 3px solid var(--orange);
}

.page-faq .cue-band__copy { max-width: 62ch; }

.page-faq .cue-band__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .cue-band__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 联系支持 ---------- */

.page-faq .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .help-card {
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid var(--faq-rule);
  background: var(--ink-800);
  border-top: 3px solid var(--orange);
}

.page-faq .help-card:last-child {
  border-top-color: var(--neon);
}

.page-faq .help-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .help-card__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.2vw, 22px);
  letter-spacing: 0.02em;
  color: var(--neon);
  word-break: break-word;
}

.page-faq .help-card__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .help-note {
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 68ch;
}

.page-faq .help-note a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .help-note a:hover,
.page-faq .help-note a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(28px, 3.4vw, 40px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-faq .faq-section:last-of-type {
  padding-bottom: clamp(72px, 9vw, 120px);
}

/* ---------- 响应式 ---------- */

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-faq .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-account {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: clamp(36px, 4vw, 64px);
  }

  .page-faq .faq-account {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }
}

@media (max-width: 559px) {
  .page-faq .qa__q {
    grid-template-columns: 28px 1fr 16px;
    gap: 8px;
  }

  .page-faq .qa__a {
    padding-left: 36px;
  }

  .page-faq .faq-index__inner {
    gap: 10px 14px;
  }

  .page-faq .cue-band {
    margin-left: 5vw;
    margin-right: 5vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a { animation: none; }
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa__text,
  .page-faq .qa,
  .page-faq .faq-index__list a {
    transition: none;
  }
}