.page-faq {
  --faq-rail-w: 216px;
  --faq-line: var(--line);
}

.page-faq .tut-crumb {
  padding-top: 24px;
}

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

.page-faq .tut-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-faq .tut-hero__media {
  order: 2;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.42);
}

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

.page-faq .tut-hero__copy {
  order: 1;
  min-width: 0;
}

.page-faq .tut-hero__kicker {
  margin: 0 0 16px;
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .tut-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(28px, 6.4vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-faq .tut-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--fog);
}

.page-faq .tut-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .tut-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .tut-hero__fact-num {
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-faq .tut-hero__fact-text {
  font-size: var(--fs-14);
  color: var(--fog-dim);
}

/* ---------- 布局 ---------- */

.page-faq .tut-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-bottom: 76px;
}

/* ---------- 教程轨道 ---------- */

.page-faq .tut-rail {
  min-width: 0;
}

.page-faq .tut-rail__label {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--fog-dim);
  text-transform: uppercase;
}

.page-faq .tut-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .tut-rail__item {
  flex: 0 0 auto;
}

.page-faq .tut-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
  color: var(--fog);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.page-faq .tut-rail__link:hover,
.page-faq .tut-rail__link:focus-visible {
  border-color: var(--cyan);
  color: var(--silver);
  outline: none;
}

.page-faq .tut-rail__node {
  display: none;
}

.page-faq .tut-rail__num {
  font-size: var(--fs-12);
  color: var(--gold);
}

.page-faq .tut-rail__text {
  font-size: var(--fs-14);
}

.page-faq .tut-rail__link[aria-current="true"] {
  border-color: var(--gold);
  background: rgba(232, 178, 58, 0.08);
  color: var(--silver);
}

.page-faq .tut-rail__link[aria-current="true"] .tut-rail__num {
  color: var(--gold);
}

/* ---------- 教程正文 ---------- */

.page-faq .tut-body {
  display: grid;
  gap: 58px;
  min-width: 0;
}

.page-faq .tut-step {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .tut-step__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-step__num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-faq .tut-step__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--silver);
}

.page-faq .tut-step__lede {
  margin: 0 0 26px;
  max-width: 64ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--fog);
}

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

.page-faq .tut-steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 22px;
}

.page-faq .tut-steps__item:last-child {
  padding-bottom: 0;
}

.page-faq .tut-steps__item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 32px;
  bottom: 2px;
  width: 1px;
  background: var(--line);
}

.page-faq .tut-steps__item:last-child::before {
  display: none;
}

.page-faq .tut-steps__idx {
  align-self: start;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--ink);
  color: var(--gold);
  font-size: var(--fs-14);
  font-weight: 700;
  z-index: 1;
  transition: border-color 180ms ease, color 180ms ease;
}

.page-faq .tut-steps__item:hover .tut-steps__idx {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .tut-steps__text {
  margin: 3px 0 0;
  max-width: 66ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 问答区 ---------- */

.page-faq .tut-faq {
  margin-top: 34px;
  padding-left: 0;
}

.page-faq .tut-faq__title {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--cyan);
}

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

.page-faq .tut-faq .accordion__item {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .tut-faq .accordion__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 180ms ease;
}

.page-faq .tut-faq .accordion__item:has(.accordion__trigger[aria-expanded="true"])::before {
  opacity: 1;
}

.page-faq .tut-faq .accordion__trigger {
  display: block;
  width: 100%;
  padding: 17px 34px 17px 0;
  border: 0;
  background: transparent;
  text-align: left;
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: 1.6;
  color: var(--silver);
  cursor: pointer;
  position: relative;
  transition: color 180ms ease;
}

.page-faq .tut-faq .accordion__trigger::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  color: var(--fog-dim);
  transition: color 180ms ease;
}

.page-faq .tut-faq .accordion__trigger:hover,
.page-faq .tut-faq .accordion__trigger:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .tut-faq .accordion__trigger[aria-expanded="true"] {
  color: var(--gold);
}

.page-faq .tut-faq .accordion__trigger[aria-expanded="true"]::after {
  content: "–";
  color: var(--gold);
}

.page-faq .tut-faq .accordion__panel {
  padding: 0 0 20px;
  max-width: 66ch;
}

.page-faq .tut-faq .accordion__panel p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--fog);
}

.page-faq .tut-inline-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 截图 ---------- */

.page-faq .tut-shot {
  margin: 34px 0 0;
}

.page-faq .tut-shot .figure__caption {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--fog-dim);
}

.page-faq .tut-shot .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 结尾引导 ---------- */

.page-faq .tut-cta {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 2px;
  background:
    linear-gradient(135deg, rgba(232, 178, 58, 0.10) 0%, rgba(53, 218, 209, 0.06) 52%, rgba(18, 22, 28, 0) 100%),
    var(--panel);
  overflow: hidden;
}

.page-faq .tut-cta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--gold);
}

.page-faq .tut-cta__inner {
  padding: 34px 26px 32px;
}

.page-faq .tut-cta__kicker {
  margin: 0 0 12px;
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-faq .tut-cta__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 4.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-faq .tut-cta__text {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .tut-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .tut-cta__meta {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-12);
  color: var(--fog-dim);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .tut-step__num {
    font-size: var(--fs-44);
  }

  .page-faq .tut-step__title {
    font-size: 24px;
  }

  .page-faq .tut-cta__inner {
    padding: 46px 46px 42px;
  }
}

@media (min-width: 860px) {
  .page-faq .tut-hero {
    padding: 36px 0 62px;
  }

  .page-faq .tut-hero__inner {
    grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
    gap: 58px;
  }

  .page-faq .tut-hero__media {
    order: 1;
  }

  .page-faq .tut-hero__copy {
    order: 2;
  }
}

@media (min-width: 1000px) {
  .page-faq .tut-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 58px;
    align-items: start;
  }

  .page-faq .tut-rail {
    position: sticky;
    top: calc(var(--header-h) + 30px);
  }

  .page-faq .tut-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
    position: relative;
  }

  .page-faq .tut-rail__list::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 14px;
    bottom: 14px;
    width: 1px;
    background: var(--line);
  }

  .page-faq .tut-rail__link {
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 9px 8px 9px 20px;
    white-space: normal;
  }

  .page-faq .tut-rail__link:hover,
  .page-faq .tut-rail__link:focus-visible {
    background: rgba(53, 218, 209, 0.06);
  }

  .page-faq .tut-rail__link[aria-current="true"] {
    background: transparent;
  }

  .page-faq .tut-rail__node {
    display: block;
    position: absolute;
    left: 0;
    top: 50%;
    width: 11px;
    height: 11px;
    margin-top: -5.5px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--ink);
    transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
  }

  .page-faq .tut-rail__link {
    position: relative;
  }

  .page-faq .tut-rail__link:hover .tut-rail__node {
    border-color: var(--cyan);
  }

  .page-faq .tut-rail__link[aria-current="true"] .tut-rail__node {
    border-color: var(--gold);
    background: var(--gold);
    box-shadow: 0 0 0 3px rgba(232, 178, 58, 0.18);
  }

  .page-faq .tut-rail__link[aria-current="true"] .tut-rail__text {
    color: var(--gold);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tut-rail__link,
  .page-faq .tut-rail__node,
  .page-faq .tut-steps__idx,
  .page-faq .tut-faq .accordion__trigger,
  .page-faq .tut-faq .accordion__item::before {
    transition: none;
  }
}
<<<END>>>