.page-faq {
  --faq-line: rgba(205, 184, 232, 0.16);
  --faq-stack: linear-gradient(150deg, rgba(75, 30, 111, 0.46), rgba(12, 42, 36, 0.62));
  padding-bottom: clamp(40px, 8vw, 96px);
  color: var(--pt-body);
}

.page-faq .faq-intro {
  padding-top: clamp(24px, 5vw, 52px);
}

.page-faq .faq-intro__layout {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  margin-top: clamp(20px, 4vw, 34px);
}

.page-faq .faq-intro__lead {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-intro__lead .pt-title-xl {
  margin: 0;
  max-width: 20ch;
  color: var(--pt-cream);
  font-family: var(--pt-sans);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.16;
}

.page-faq .faq-intro__lead .pt-lede {
  margin: 0;
  max-width: 60ch;
  color: var(--pt-mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-index {
  position: relative;
  align-self: start;
}

.page-faq .faq-index::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 26px;
  width: 1px;
  height: 20px;
  background: linear-gradient(var(--pt-mint), transparent);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-faq .faq-index__list li {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index__list li:first-child {
  border-top: 0;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 11px 2px;
  color: var(--pt-cream);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--pt-mint);
  padding-left: 6px;
}

.page-faq .faq-index__num {
  font-family: var(--pt-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--pt-gold-deep);
}

.page-faq .faq-head {
  display: grid;
  gap: 12px;
  max-width: 66ch;
  margin-bottom: clamp(24px, 5vw, 40px);
}

.page-faq .faq-head .pt-title--section {
  margin: 0;
  color: var(--pt-cream);
}

.page-faq .faq-head__sub {
  margin: 0;
  color: var(--pt-mist);
  font-size: 15.5px;
  line-height: 1.85;
}

/* 01 三步路径 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 clamp(26px, 5vw, 44px);
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 20px 22px 24px;
  border: 1px solid var(--faq-line);
  border-radius: var(--pt-radius-sm);
  background: var(--faq-stack);
  box-shadow: var(--pt-shadow);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(var(--pt-mint), transparent);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--pt-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--pt-gold);
}

.page-faq .faq-step__title {
  margin: 10px 0 6px;
  font-family: var(--pt-serif);
  font-size: 19px;
  line-height: 1.45;
  color: var(--pt-cream);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pt-mist);
}

.page-faq .faq-figure,
.page-faq .faq-install__media {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-figure img,
.page-faq .faq-install__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--pt-radius);
  border: 1px solid var(--faq-line);
  background: linear-gradient(160deg, rgba(75, 30, 111, 0.5), rgba(7, 28, 24, 0.9));
}

.page-faq .faq-figure figcaption {
  font-family: var(--pt-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--pt-slate);
}

.page-faq .faq-install__media img {
  border-color: var(--pt-line-strong);
}

.page-faq .faq-install__media figcaption {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--pt-slate);
}

/* 02 安装要求 */
.page-faq .faq-install__grid {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.page-faq .faq-install__body {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.page-faq .faq-checklist li {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-checklist li:last-child {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-checklist__k {
  font-family: var(--pt-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pt-gold);
}

.page-faq .faq-checklist p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--pt-body);
}

.page-faq .pt-note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pt-slate);
  padding-left: 14px;
  border-left: 1px solid var(--pt-line-strong);
}

.page-faq .pt-note__label {
  display: block;
  font-family: var(--pt-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--pt-gold-deep);
  margin-bottom: 4px;
}

/* 03 版本选择 */
.page-faq .faq-compare {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(26px, 5vw, 42px);
}

.page-faq .faq-compare__col {
  padding: 22px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--pt-radius-sm);
  background: linear-gradient(160deg, rgba(75, 30, 111, 0.5), rgba(23, 11, 38, 0.72));
}

.page-faq .faq-compare__col--mint {
  border-color: rgba(78, 240, 200, 0.26);
  background: linear-gradient(160deg, rgba(12, 42, 36, 0.82), rgba(75, 30, 111, 0.34));
}

.page-faq .faq-compare__col .pt-tag {
  margin: 0;
}

.page-faq .faq-compare__col h3 {
  margin: 14px 0 10px;
  font-family: var(--pt-serif);
  font-size: 20px;
  line-height: 1.5;
  color: var(--pt-cream);
}

.page-faq .faq-compare__col ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--pt-body);
}

.page-faq .faq-compare__col li::marker {
  color: var(--pt-gold-deep);
}

.page-faq .faq-qa {
  counter-reset: qa;
  display: grid;
}

.page-faq .faq-qa__item {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-qa__item:last-child {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-qa__item summary {
  counter-increment: qa;
  display: grid;
  grid-template-columns: 34px 1fr 20px;
  gap: 12px;
  align-items: baseline;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--pt-serif);
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--pt-cream);
  transition: color 0.2s ease;
}

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

.page-faq .faq-qa__item summary::before {
  content: counter(qa, decimal-leading-zero);
  font-family: var(--pt-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--pt-gold-deep);
}

.page-faq .faq-qa__item summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--pt-mono);
  font-size: 16px;
  color: var(--pt-mint);
}

.page-faq .faq-qa__item summary:hover,
.page-faq .faq-qa__item summary:focus-visible {
  color: var(--pt-gold);
}

.page-faq .faq-qa__item[open] summary {
  color: var(--pt-mint);
}

.page-faq .faq-qa__item[open] summary::after {
  content: "−";
}

.page-faq .faq-qa__body {
  padding: 0 2px 20px;
}

.page-faq .faq-qa__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pt-body);
}

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

.page-faq .faq-qa__body a {
  color: var(--pt-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(78, 240, 200, 0.4);
}

.page-faq .faq-qa__body a:hover,
.page-faq .faq-qa__body a:focus-visible {
  color: var(--pt-gold);
  border-bottom-color: var(--pt-gold);
}

/* 04 入口与更新 */
.page-faq .faq-entries__grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-entries__panel {
  display: grid;
  align-content: start;
  gap: 12px;
}

.page-faq .faq-entries__panel h2,
.page-faq .faq-entries__panel h3 {
  margin: 0;
  font-family: var(--pt-serif);
  font-size: 21px;
  line-height: 1.5;
  color: var(--pt-cream);
}

.page-faq .faq-entries__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pt-mist);
}

.page-faq .faq-entries__panel .pt-btn {
  justify-self: start;
  margin-top: 4px;
}

.page-faq .faq-entries__panel--offset {
  border-color: var(--pt-line-strong);
}

/* 05 故障排查 */
.page-faq .faq-trouble__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-trouble__item {
  padding: 20px 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--pt-radius-sm);
  background: rgba(12, 42, 36, 0.42);
}

.page-faq .faq-trouble__item h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--pt-sans);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--pt-cream);
}

.page-faq .faq-dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--pt-mist);
  box-shadow: 0 0 0 3px rgba(205, 184, 232, 0.12);
}

.page-faq .faq-trouble__item--open .faq-dot {
  background: var(--pt-mist);
  box-shadow: 0 0 0 3px rgba(205, 184, 232, 0.16);
}

.page-faq .faq-trouble__item--find .faq-dot {
  background: var(--pt-gold);
  box-shadow: 0 0 0 3px rgba(242, 198, 109, 0.16);
}

.page-faq .faq-trouble__item--install .faq-dot {
  background: var(--pt-mint);
  box-shadow: 0 0 0 3px rgba(78, 240, 200, 0.16);
}

.page-faq .faq-trouble__item--display .faq-dot {
  background: var(--pt-vine);
  box-shadow: 0 0 0 3px rgba(44, 122, 91, 0.22);
}

.page-faq .faq-trouble__item ol {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--pt-body);
}

.page-faq .faq-trouble__item li::marker {
  font-family: var(--pt-mono);
  color: var(--pt-slate);
}

/* 06 联系帮助 */
.page-faq .faq-help__panel {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  background: linear-gradient(135deg, rgba(75, 30, 111, 0.62), rgba(7, 28, 24, 0.94));
}

.page-faq .faq-help__body {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-help__body h2 {
  margin: 0;
  font-family: var(--pt-serif);
  font-size: clamp(21px, 3.4vw, 27px);
  line-height: 1.45;
  color: var(--pt-cream);
}

.page-faq .faq-help__body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pt-mist);
}

.page-faq .faq-help__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pt-body);
}

.page-faq .faq-help__list li::marker {
  color: var(--pt-mint);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-help__contact {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 20px 18px;
  border: 1px solid var(--pt-line-strong);
  border-radius: var(--pt-radius-sm);
  background: rgba(4, 17, 14, 0.45);
}

.page-faq .faq-help__contact .pt-contact__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 14px;
  margin: 0;
  font-size: 14px;
}

.page-faq .faq-help__contact .pt-contact__label {
  color: var(--pt-slate);
  font-family: var(--pt-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-faq .faq-help__contact .pt-contact__value {
  color: var(--pt-cream);
}

.page-faq .faq-help__contact .pt-contact__value--mono {
  font-family: var(--pt-mono);
  font-size: 13.5px;
  color: var(--pt-gold);
  word-break: break-word;
}

.page-faq .faq-help__contact .pt-contact__note {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--pt-slate);
}

@media (min-width: 560px) {
  .page-faq .faq-checklist li {
    grid-template-columns: 92px 1fr;
    gap: 16px;
    align-items: baseline;
  }

  .page-faq .faq-qa__body {
    padding-left: 46px;
  }

  .page-faq .faq-qa__item summary {
    grid-template-columns: 42px 1fr 22px;
    gap: 14px;
    font-size: 17.5px;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-step {
    display: grid;
    grid-template-columns: 58px 1fr;
    column-gap: 18px;
    padding: 24px 24px 24px 28px;
  }

  .page-faq .faq-step__num {
    grid-row: 1 / span 2;
    font-size: 21px;
    letter-spacing: 0.06em;
    padding-top: 3px;
  }

  .page-faq .faq-step__title {
    margin-top: 0;
  }

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

  .page-faq .faq-trouble__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-install__grid {
    grid-template-columns: 1.4fr 0.6fr;
    align-items: start;
    gap: 48px;
  }

  .page-faq .faq-entries__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 20px;
  }

  .page-faq .faq-entries__panel--offset {
    margin-top: 28px;
  }

  .page-faq .faq-help__panel {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
    padding: clamp(26px, 4vw, 40px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-intro__layout {
    grid-template-columns: 1.42fr 0.58fr;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-intro__lead .pt-title-xl {
    font-size: clamp(34px, 3.6vw, 50px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-qa__item summary {
    transition: none;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    padding-left: 2px;
  }
}
<<<END>>>