.page-faq {
  --faq-gap: clamp(34px, 6vw, 64px);
  --faq-card: var(--ink-2);
  --faq-card-hi: #0d2444;
  color: var(--text);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(44px, 7vw, 88px);
  background: linear-gradient(180deg, #07172c 0%, #050F22 46%);
}

.page-faq .crumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  position: relative;
  display: grid;
  gap: clamp(20px, 3.4vw, 32px);
  padding: clamp(22px, 4vw, 44px) 0 clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-hero::before {
  content: "";
  position: absolute;
  top: -40px;
  left: -8%;
  width: 70%;
  height: 240px;
  background: radial-gradient(58% 100% at 22% 0%, rgba(38, 227, 216, 0.16), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .tut-hero__lead,
.page-faq .tut-hero__meta {
  position: relative;
  z-index: 1;
}

.page-faq .tut-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .tut-hero h1 {
  margin: 0;
  font-size: clamp(28px, 4.8vw, 52px);
  line-height: 1.14;
  letter-spacing: 0.04em;
  font-weight: 800;
  max-width: 22ch;
}

.page-faq .tut-hero__intro {
  margin: 16px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.9;
}

.page-faq .tut-hero__meta {
  align-self: start;
  justify-self: start;
  display: grid;
  gap: 8px;
  padding: 18px 20px 20px;
  min-width: 208px;
  background: var(--faq-card);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  clip-path: var(--cut-corner);
}

.page-faq .tut-hero__verlabel {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .tut-hero__ver {
  font-family: var(--mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .tut-hero__metaline {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.6;
}

.page-faq .tut-hero__meta .tag {
  justify-self: start;
}

/* ---------- 区块骨架 ---------- */
.page-faq .tut-section {
  margin-top: var(--faq-gap);
  scroll-margin-top: 96px;
}

.page-faq .section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .section-head__index {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .section-head h2 {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.3;
  letter-spacing: 0.04em;
  font-weight: 800;
}

.page-faq .tut-section__lead {
  margin: 0 0 22px;
  max-width: 64ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .tut-section__lead a,
.page-faq .steps__card a,
.page-faq .tut-note a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(38, 227, 216, 0.4);
}

.page-faq .tut-section__lead a:hover,
.page-faq .steps__card a:hover,
.page-faq .tut-note a:hover {
  color: var(--text);
  border-bottom-color: var(--cyan);
}

/* ---------- 图 ---------- */
.page-faq .tut-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  background: #08172c;
  clip-path: var(--cut-corner);
  overflow: hidden;
}

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

.page-faq .tut-figure--side {
  margin-bottom: 14px;
}

/* ---------- 四步流程条 ---------- */
.page-faq .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .flow__item {
  position: relative;
}

.page-faq .flow__link {
  display: grid;
  gap: 6px;
  height: 100%;
  padding: 16px 16px 18px;
  background: var(--faq-card);
  border: 1px solid var(--line);
  clip-path: var(--cut-corner);
  text-decoration: none;
  color: var(--text);
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.page-faq .flow__link:hover,
.page-faq .flow__link:focus-visible {
  background: var(--faq-card-hi);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .flow__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .flow__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .flow__title {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.page-faq .flow__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 步骤卡 ---------- */
.page-faq .steps {
  display: grid;
  gap: 12px;
}

.page-faq .steps__card {
  position: relative;
  padding: 18px 18px 20px 52px;
  background: var(--faq-card);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  clip-path: var(--cut-corner);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .steps__card:hover {
  background: var(--faq-card-hi);
  border-left-color: var(--cyan);
}

.page-faq .steps__num {
  position: absolute;
  left: 16px;
  top: 18px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .steps__title {
  margin: 0 0 7px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.page-faq .steps__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .tut-note {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 16px 0 0;
  padding: 14px 16px;
  background: rgba(255, 194, 75, 0.07);
  border: 1px solid rgba(255, 194, 75, 0.28);
  clip-path: var(--cut-corner);
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 排障布局 ---------- */
.page-faq .fix-layout {
  display: grid;
  gap: 20px;
}

.page-faq .fix-list {
  display: grid;
  gap: 12px;
}

.page-faq .fix {
  padding: 18px 18px 20px;
  background: var(--faq-card);
  border: 1px solid var(--line);
  clip-path: var(--cut-corner);
}

.page-faq .fix__title {
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.page-faq .fix__steps {
  counter-reset: fixstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .fix__steps > li {
  counter-increment: fixstep;
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .fix__steps > li::before {
  content: counter(fixstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 0 4px;
  line-height: 1.5;
}

.page-faq .fix-aside__box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  background: var(--faq-card);
  border: 1px solid var(--line);
  clip-path: var(--cut-corner);
}

.page-faq .fix-aside__box .dot {
  margin-top: 6px;
  flex: none;
}

.page-faq .fix-aside__box p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-group {
  margin-bottom: 18px;
}

.page-faq .qa-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .qa-group__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 500;
  color: var(--cyan-soft);
}

.page-faq .fold {
  display: grid;
  gap: 8px;
}

.page-faq .fold__item {
  background: var(--faq-card);
  border: 1px solid var(--line);
  clip-path: var(--cut-corner);
  transition: border-color 0.18s ease;
}

.page-faq .fold__item:hover {
  border-color: var(--line);
}

.page-faq .fold__q {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .fold__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  background: transparent;
  border: 0;
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.02em;
  text-align: left;
  cursor: pointer;
  transition: color 0.14s ease;
}

.page-faq .fold__trigger:hover {
  color: var(--cyan-soft);
}

.page-faq .fold__trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .fold__trigger[aria-expanded="true"] {
  color: var(--cyan-soft);
}

.page-faq .fold__icon {
  flex: none;
  width: 9px;
  height: 9px;
  margin-right: 3px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}

.page-faq .fold__trigger[aria-expanded="true"] .fold__icon {
  transform: rotate(-135deg);
}

.page-faq .fold__panel {
  padding: 0 18px 16px;
}

.page-faq .fold__panel[hidden] {
  display: none;
}

.page-faq .fold__panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .fold__panel p + p {
  margin-top: 8px;
}

/* ---------- 收尾 ---------- */
.page-faq .tut-tail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin-top: var(--faq-gap);
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-faq .tut-tail p {
  flex: 1 1 300px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 60ch;
}

.page-faq .tut-tail .btn--signal {
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .fix-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-faq .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 18px;
  }

  .page-faq .flow__item::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -18px;
    width: 18px;
    height: 1px;
    background: var(--cyan);
    opacity: 0.45;
  }

  .page-faq .flow__item:last-child::after {
    display: none;
  }
}

@media (min-width: 940px) {
  .page-faq .tut-hero {
    grid-template-columns: minmax(0, 7fr) minmax(220px, 3.4fr);
    align-items: start;
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .fix-layout {
    grid-template-columns: minmax(0, 7fr) minmax(260px, 4fr);
    align-items: start;
    gap: 22px;
  }

  .page-faq .tut-figure {
    max-width: 940px;
  }
}

@media (max-width: 600px) {
  .page-faq .steps__card {
    padding: 16px 15px 18px 46px;
  }

  .page-faq .steps__num {
    left: 14px;
    top: 16px;
  }

  .page-faq .fold__trigger {
    padding: 14px 15px;
    font-size: 14.5px;
  }

  .page-faq .fold__panel {
    padding: 0 15px 15px;
  }

  .page-faq .fix__steps > li {
    padding-left: 27px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .flow__link,
  .page-faq .fold__icon,
  .page-faq .fold__trigger,
  .page-faq .steps__card,
  .page-faq .fold__item {
    transition: none;
  }

  .page-faq .flow__link:hover,
  .page-faq .flow__link:focus-visible {
    transform: none;
  }
}
<<<END>>>