.page-faq {
  background: var(--ink);
  color: var(--mist);
  padding: 0 0 88px;
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq .faq-hero {
  display: grid;
  gap: 22px;
  padding: 34px 0 34px;
  border-bottom: 1px solid var(--hairline-strong);
}

.page-faq .faq-hero-copy .eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 6.4vw, 56px);
  line-height: 1.08;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--chalk);
  max-width: 64ch;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
}

.page-faq .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .stat-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 5.6vw, 38px);
  line-height: 1;
  color: var(--mint);
  letter-spacing: 0.02em;
}

.page-faq .stat-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .faq-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  margin: 46px 0 20px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline-strong);
}

.page-faq .faq-sec-no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--mint);
  padding: 2px 8px;
  border: 1px solid rgba(40, 240, 184, 0.42);
  border-radius: 6px;
  background: var(--mint-soft);
}

.page-faq .faq-sec-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.045em;
  color: var(--mist);
}

.page-faq .faq-sec-sub {
  grid-column: 2;
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--chalk);
  max-width: 70ch;
}

/* 索引区 */
.page-faq .faq-index-grid {
  display: grid;
  gap: 14px;
}

.page-faq .idx-card {
  position: relative;
  background: var(--concrete);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 20px 18px 14px;
  overflow: hidden;
}

.page-faq .idx-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mint), rgba(40, 240, 184, 0));
}

.page-faq .idx-card[data-tone="signal"]::before {
  background: linear-gradient(90deg, var(--signal), rgba(255, 90, 60, 0));
}

.page-faq .idx-card[data-tone="pulse"]::before {
  background: linear-gradient(90deg, var(--pulse), rgba(255, 200, 87, 0));
}

.page-faq .idx-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-faq .idx-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--ink);
  background: var(--mint);
  flex: none;
}

.page-faq .idx-card[data-tone="signal"] .idx-letter {
  background: var(--signal);
  color: var(--mist);
}

.page-faq .idx-card[data-tone="pulse"] .idx-letter {
  background: var(--pulse);
  color: var(--ink);
}

.page-faq .idx-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-faq .idx-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .idx-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  font-size: 14px;
  color: var(--chalk);
  text-decoration: none;
  border-bottom: 1px dashed var(--hairline);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .idx-list li:last-child .idx-link {
  border-bottom: 0;
}

.page-faq .idx-link span[aria-hidden="true"] {
  color: var(--mint);
  font-family: var(--font-mono);
  flex: none;
}

.page-faq .idx-link:hover,
.page-faq .idx-link:focus-visible {
  color: var(--mint);
  border-bottom-color: rgba(40, 240, 184, 0.5);
  outline: none;
}

/* iOS 步骤 */
.page-faq .faq-ios {
  display: grid;
  gap: 24px;
}

.page-faq .ios-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .ios-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 0 14px;
  padding: 16px 0 18px;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .ios-step:first-child {
  border-top: 1px solid var(--hairline);
}

.page-faq .ios-step-no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.3;
  color: var(--mint);
  letter-spacing: 0.04em;
}

.page-faq .ios-step h3 {
  grid-column: 2;
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq .ios-step p {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--chalk);
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
  line-height: 1.7;
}

.page-faq .media-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--deep);
}

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

/* 手风琴问答 */
.page-faq .qa {
  margin-bottom: 10px;
  background: var(--concrete);
  border: 1px solid var(--hairline);
  border-left: 3px solid rgba(174, 184, 182, 0.28);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--mint);
  background: linear-gradient(180deg, var(--concrete), rgba(15, 59, 51, 0.55));
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--mist);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  line-height: 1;
  color: var(--mint);
}

.page-faq .qa[open] summary::after {
  content: "–";
}

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

.page-faq .qa-no {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .qa[open] .qa-no {
  color: var(--mint);
}

.page-faq .qa-q {
  min-width: 0;
}

.page-faq .qa-a {
  padding: 0 18px 18px;
  border-top: 1px solid var(--hairline);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--chalk);
}

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

/* 看台编号 */
.page-faq .faq-stand {
  display: grid;
  gap: 22px;
}

.page-faq .stand-codes {
  display: grid;
  gap: 10px;
}

.page-faq .stand-code {
  display: grid;
  grid-template-columns: 44px minmax(0, auto);
  gap: 2px 14px;
  align-items: center;
  padding: 14px 16px;
  background: var(--concrete);
  border: 1px solid var(--hairline);
  border-radius: 12px;
}

.page-faq .stand-code-key {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--deep);
  color: var(--mint);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.page-faq .stand-code-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--pulse);
  line-height: 1.2;
}

.page-faq .stand-code-desc {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--chalk);
}

.page-faq .stand-tip {
  margin: 6px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--mint);
  font-size: 13px;
  line-height: 1.8;
  color: var(--chalk);
}

/* 兼容表 */
.page-faq .compat-wrap {
  overflow-x: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--concrete);
  -webkit-overflow-scrolling: touch;
}

.page-faq .compat-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .compat-table th,
.page-faq .compat-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
  line-height: 1.7;
}

.page-faq .compat-table thead th {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  background: rgba(11, 15, 16, 0.55);
  border-bottom: 1px solid var(--hairline-strong);
  white-space: nowrap;
}

.page-faq .compat-table tbody th {
  font-weight: 600;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .compat-table tbody td {
  color: var(--chalk);
}

.page-faq .compat-table tbody tr:nth-child(even) {
  background: rgba(11, 15, 16, 0.32);
}

.page-faq .compat-table tbody tr:last-child th,
.page-faq .compat-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .compat-ver {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.04em;
}

.page-faq .compat-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .inline-link {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(40, 240, 184, 0.45);
}

.page-faq .inline-link:hover,
.page-faq .inline-link:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--mist);
  outline: none;
}

/* 联系收束 */
.page-faq .contact-card {
  padding: 22px 18px;
  border: 1px solid rgba(40, 240, 184, 0.28);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--deep), rgba(36, 43, 45, 0.92) 68%);
}

.page-faq .contact-grid {
  display: grid;
  gap: 16px;
}

.page-faq .contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .contact-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-faq .contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.contact-value:hover,
.page-faq a.contact-value:focus-visible {
  color: var(--mint);
  outline: none;
}

.page-faq .contact-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(174, 184, 182, 0.22);
  font-size: 13px;
  line-height: 1.85;
  color: var(--chalk);
}

.page-faq .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .contact-actions .btn {
  text-decoration: none;
}

@media (min-width: 720px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .idx-card {
    padding: 22px 22px 16px;
  }

  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq {
    padding-bottom: 112px;
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    column-gap: 48px;
    align-items: end;
    padding: 52px 0 44px;
  }

  .page-faq .faq-lead {
    font-size: 16px;
  }

  .page-faq .faq-sec-head {
    margin-top: 60px;
    gap: 4px 18px;
  }

  .page-faq .faq-ios {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-stand {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .qa summary {
    padding: 17px 22px;
    font-size: 16px;
  }

  .page-faq .qa-a {
    padding: 16px 22px 20px 58px;
  }

  .page-faq .contact-card {
    padding: 30px 32px;
  }

  .page-faq .contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .idx-card:first-child {
    grid-column: span 2;
  }

  .page-faq .idx-card:first-child .idx-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-faq .idx-card:first-child .idx-link {
    border-bottom: 1px dashed var(--hairline);
  }
}

@media (max-width: 420px) {
  .page-faq .faq-hero-stats {
    gap: 18px;
  }

  .page-faq .ios-step {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 0 10px;
  }

  .page-faq .contact-actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .idx-link,
  .page-faq .qa {
    transition: none;
  }
}
<<<END>>>