.page-faq {
  --faq-rule: rgba(245, 241, 230, 0.13);
  --faq-gold-line: rgba(217, 164, 65, 0.42);
  --faq-gap: clamp(18px, 2.6vw, 32px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumbs {
  padding-top: clamp(16px, 3vw, 30px);
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(20px, 4vw, 44px) clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20em;
  font-size: clamp(1.9rem, 5.2vw, 3.5rem);
  line-height: 1.18;
  font-weight: 800;
  color: var(--snow);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 42rem;
  font-size: clamp(0.98rem, 1.3vw, 1.08rem);
  line-height: 1.85;
  color: var(--fog);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(245, 241, 230, 0.18);
  border-radius: 999px;
  color: var(--snow);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  border-color: var(--gold);
  color: var(--gold-hi);
  background-color: rgba(217, 164, 65, 0.08);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(14px, 2vw, 26px);
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--faq-gold-line);
}

.page-faq .faq-stat dt {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--fog);
}

.page-faq .faq-stat dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 2.6vw, 1.95rem);
  color: var(--gold-hi);
  letter-spacing: -0.01em;
}

.page-faq .faq-stat dd small {
  font-size: 0.72rem;
  margin-left: 4px;
  color: var(--fog);
  letter-spacing: 0;
}

/* ---------- 四步与问答 ---------- */
.page-faq .faq-guide {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .faq-guide__intro h2,
.page-faq .faq-index__intro h2,
.page-faq .faq-trouble__text h2,
.page-faq .faq-support h2,
.page-faq .faq-qa__head h2 {
  margin: 10px 0 0;
  font-size: clamp(1.55rem, 2.8vw, 2.3rem);
  line-height: 1.25;
  color: var(--snow);
}

.page-faq .faq-guide__media,
.page-faq .faq-trouble__media {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid rgba(245, 241, 230, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: auto;
}

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

.page-faq .faq-guide__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  padding: 16px 18px 18px 16px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(35, 42, 49, 0.92), rgba(21, 24, 28, 0.66));
  scroll-margin-top: 110px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  border-color: var(--faq-gold-line);
}

.page-faq .faq-step__num {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink-deep);
  background:
    repeating-linear-gradient(135deg, rgba(21, 24, 28, 0.16) 0 3px, transparent 3px 7px),
    linear-gradient(150deg, var(--gold-hi), var(--gold-deep));
}

.page-faq .faq-step h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--snow);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--fog);
}

/* 手风琴 */
.page-faq .faq-qa__head {
  margin-bottom: 8px;
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  min-height: 44px;
  padding: 18px 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--snow);
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1.2;
  color: var(--gold);
  transition: color 0.25s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--gold-hi);
}

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

.page-faq .faq-item__a {
  padding: 0 0 20px;
  max-width: 42rem;
  color: var(--fog);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__a a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-decoration-color: rgba(217, 164, 65, 0.5);
  text-underline-offset: 4px;
}

.page-faq .faq-item__a a:hover {
  text-decoration-color: var(--gold-hi);
}

.page-faq .faq-item__a ol {
  counter-reset: qa;
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-item__a ol li {
  position: relative;
  padding-left: 32px;
}

.page-faq .faq-item__a ol li::before {
  counter-increment: qa;
  content: counter(qa);
  position: absolute;
  left: 0;
  top: 3px;
  display: grid;
  place-items: center;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  border: 1px solid var(--faq-gold-line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  color: var(--gold-hi);
}

/* ---------- 教程索引 ---------- */
.page-faq .faq-index {
  margin-top: clamp(48px, 7vw, 88px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-index__intro p:last-child {
  margin: 12px 0 0;
  max-width: 40rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-index__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-faq .faq-index__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-index__tabs label {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(245, 241, 230, 0.16);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--fog);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-index__tabs label:hover {
  color: var(--snow);
  border-color: rgba(217, 164, 65, 0.5);
}

.page-faq #tut-all:checked ~ .faq-index__tabs label[for="tut-all"],
.page-faq #tut-dl:checked ~ .faq-index__tabs label[for="tut-dl"],
.page-faq #tut-in:checked ~ .faq-index__tabs label[for="tut-in"],
.page-faq #tut-set:checked ~ .faq-index__tabs label[for="tut-set"],
.page-faq #tut-mt:checked ~ .faq-index__tabs label[for="tut-mt"] {
  color: var(--ink-deep);
  background-color: var(--gold);
  border-color: var(--gold);
}

.page-faq #tut-dl:checked ~ .faq-index__list li:not(.is-dl),
.page-faq #tut-in:checked ~ .faq-index__list li:not(.is-in),
.page-faq #tut-set:checked ~ .faq-index__list li:not(.is-set),
.page-faq #tut-mt:checked ~ .faq-index__list li:not(.is-mt) {
  display: none;
}

.page-faq .faq-index__list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 14px 18px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  background-color: rgba(35, 42, 49, 0.5);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-index__list li:hover {
  transform: translateY(-2px);
  border-color: rgba(217, 164, 65, 0.55);
}

.page-faq .faq-index__title {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--snow);
}

/* ---------- 排查 ---------- */
.page-faq .faq-trouble {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(48px, 7vw, 88px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--faq-rule);
  align-items: start;
}

.page-faq .faq-tree {
  margin: clamp(22px, 3vw, 32px) 0 0 13px;
  padding: 0 0 0 26px;
  list-style: none;
  border-left: 1px solid var(--faq-gold-line);
}

.page-faq .faq-tree li {
  position: relative;
  padding-bottom: 22px;
}

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

.page-faq .faq-tree li::before {
  counter-increment: tr;
  content: counter(tr);
  position: absolute;
  left: -40px;
  top: 1px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background-color: var(--ink-card);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold-hi);
}

.page-faq .faq-tree {
  counter-reset: tr;
}

.page-faq .faq-tree h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-tree p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--fog);
}

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

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(44px, 6vw, 76px);
  padding: clamp(24px, 4vw, 44px);
}

.page-faq .faq-support__body p:last-child {
  margin: 12px 0 0;
  max-width: 38rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-support__contact {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support__contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: baseline;
  font-size: 0.9rem;
}

.page-faq .faq-support__contact span {
  min-width: 5.5em;
  color: var(--fog);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-support__contact a,
.page-faq .faq-support__contact strong {
  color: var(--gold-hi);
  font-weight: 600;
  text-decoration: none;
  word-break: break-word;
}

.page-faq .faq-support__contact a {
  text-decoration: underline;
  text-decoration-color: rgba(217, 164, 65, 0.5);
  text-underline-offset: 4px;
}

.page-faq .faq-support__contact a:hover {
  text-decoration-color: var(--gold-hi);
}

.page-faq .faq-support__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.4vw, 24px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-step {
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 18px;
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-guide__cols {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

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

  .page-faq .faq-trouble {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

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

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-index__list li,
  .page-faq .faq-hero__jump a,
  .page-faq .faq-item summary::after {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-index__list li:hover {
    transform: none;
  }
}
<<<END>>>