.page-faq {
  --faq-panel: rgba(13, 41, 64, 0.62);
  --faq-panel-soft: rgba(4, 17, 31, 0.66);
  --faq-gap: clamp(1.5rem, 4vw, 3rem);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
  color: var(--paper);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: hidden;
}

.page-faq .faq-crumb-wrap {
  padding-top: clamp(1.1rem, 3vw, 2rem);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .breadcrumbs [aria-current="page"] {
  color: var(--orange-300);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 3.6rem) 0 clamp(2.2rem, 5vw, 3.4rem);
  background:
    radial-gradient(900px 360px at 8% -20%, rgba(45, 226, 230, 0.16), transparent 70%),
    radial-gradient(680px 300px at 92% 0%, rgba(255, 106, 26, 0.15), transparent 72%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 12%;
  right: 0;
  width: 3px;
  height: 62%;
  background: repeating-linear-gradient(180deg, var(--orange) 0 14px, transparent 14px 30px);
  opacity: 0.65;
}

.page-faq .faq-hero-inner {
  position: relative;
  max-width: 62rem;
}

.page-faq .eyebrow {
  display: inline-block;
  margin: 0 0 1.1rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(45, 226, 230, 0.45);
  color: var(--cyan);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.page-faq h1 {
  margin: 0 0 1.2rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 6.4vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.page-faq .faq-lede {
  max-width: 46rem;
  margin: 0 0 1.8rem;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.8;
  color: rgba(247, 242, 232, 0.78);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 三步入门 ---------- */
.page-faq .faq-entry {
  padding: 0 0 clamp(2.4rem, 6vw, 4rem);
}

.page-faq .entry-grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  align-items: start;
}

.page-faq .entry-list h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 3.2vw, 2.4rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.page-faq .entry-sub {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.78;
}

.page-faq .entry-steps {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .entry-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.4rem 1.1rem;
  padding: 1.1rem 1.2rem;
  border: 2px solid var(--line-strong);
  background: var(--faq-panel);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

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

.page-faq .entry-num {
  font-size: 1.35rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .entry-body {
  min-width: 0;
}

.page-faq .entry-body h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .entry-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.72;
}

.page-faq .entry-check {
  display: inline-block;
  margin-top: 0.6rem;
  padding-left: 0.65rem;
  border-left: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  line-height: 1.6;
  color: var(--cyan);
}

.page-faq .entry-figure {
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-faq .entry-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-faq .entry-figure figcaption {
  padding: 0.75rem 0.95rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.65;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

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

.page-faq .toc {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem;
  border: 1px solid var(--line-strong);
  background: var(--faq-panel-soft);
}

.page-faq .toc-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .toc-link {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.45rem 0.4rem;
  border-left: 2px solid transparent;
  color: rgba(247, 242, 232, 0.82);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .toc-link .mono {
  color: var(--cyan-700);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.page-faq .toc-link:hover,
.page-faq .toc-link:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(45, 226, 230, 0.06);
}

.page-faq .toc-link[aria-current="true"] {
  color: var(--paper);
  border-left-color: var(--orange);
  background: rgba(255, 106, 26, 0.1);
}

.page-faq .toc-link[aria-current="true"] .mono {
  color: var(--orange);
}

.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-section {
  margin-bottom: clamp(2.4rem, 6vw, 4rem);
  scroll-margin-top: 2rem;
}

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

.page-faq .sec-head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
  margin-bottom: 0.9rem;
}

.page-faq .sec-num {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  flex: none;
}

.page-faq .sec-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.1vw, 2.25rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.page-faq .sec-sub {
  margin: 0 0 1.5rem;
  max-width: 44rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.78;
}

.page-faq .sec-sub a,
.page-faq .dev-note a,
.page-faq .faq-item-body a,
.page-faq .support-meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.45);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .sec-sub a:hover,
.page-faq .dev-note a:hover,
.page-faq .faq-item-body a:hover,
.page-faq .support-meta a:hover {
  color: var(--orange-300);
  border-color: var(--orange-300);
}

/* ---------- 五类目录 ---------- */
.page-faq .cat-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .cat-card {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 2px solid var(--line-strong);
  background: var(--faq-panel);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .cat-card::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  width: 46px;
  height: 3px;
  background: var(--orange);
}

.page-faq .cat-card:nth-child(even)::before {
  background: var(--cyan);
}

.page-faq .cat-card:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
}

.page-faq .cat-head {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.page-faq .cat-code {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--orange-300);
}

.page-faq .cat-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .cat-desc {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.72;
}

.page-faq .cat-links {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .cat-link {
  display: inline-flex;
  gap: 0.45rem;
  color: rgba(247, 242, 232, 0.9);
  font-size: 0.9rem;
  line-height: 1.6;
  text-decoration: none;
  border-bottom: 1px dashed rgba(216, 222, 228, 0.28);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .cat-link::before {
  content: "→";
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.page-faq .cat-link:hover,
.page-faq .cat-link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 注册逐步说明 ---------- */
.page-faq .step-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .step-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.3rem 1.1rem;
  padding: 1.15rem 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .step-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  line-height: 0.9;
  color: var(--orange);
  letter-spacing: 0.02em;
}

.page-faq .step-body {
  min-width: 0;
}

.page-faq .step-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
}

.page-faq .step-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ---------- 换设备对照 ---------- */
.page-faq .dev-figure {
  margin: 0 0 1.1rem;
  border: 2px solid var(--line-strong);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-faq .dev-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
}

.page-faq .dev-figure figcaption {
  padding: 0.7rem 0.95rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.65;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.page-faq .dev-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .dev-card {
  padding: 1.05rem 1.1rem 1.15rem;
  border-left: 3px solid var(--cyan-700);
  background: var(--faq-panel-soft);
  transition: border-color 0.25s var(--ease);
}

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

.page-faq .dev-num {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .dev-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
}

.page-faq .dev-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.72;
}

.page-faq .dev-note {
  margin: 1.1rem 0 0;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 106, 26, 0.4);
  background: rgba(255, 106, 26, 0.07);
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(247, 242, 232, 0.86);
}

/* ---------- 热门问题折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 0.6rem;
}

.page-faq .faq-item {
  border: 1px solid var(--line-strong);
  background: var(--faq-panel-soft);
  transition: border-color 0.25s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 106, 26, 0.6);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.6;
}

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

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

.page-faq .faq-item-num {
  flex: none;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-item-title {
  min-width: 0;
}

.page-faq .faq-item-icon {
  flex: none;
  margin-left: auto;
  width: 0.62rem;
  height: 0.62rem;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-item[open] .faq-item-icon {
  transform: rotate(225deg) translateY(-2px);
}

.page-faq .faq-item-body {
  padding: 0 1.05rem 1.05rem calc(1.05rem + 2.6rem);
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.78;
}

.page-faq .faq-item-body p {
  margin: 0;
}

/* ---------- 联系支持 ---------- */
.page-faq .support-card {
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 2px solid var(--ink-950);
  background: var(--paper);
  color: var(--ink-950);
  box-shadow: var(--shadow-hard);
}

.page-faq .support-lead {
  margin: 0 0 1.2rem;
  font-size: 0.98rem;
  line-height: 1.78;
  color: rgba(4, 17, 31, 0.82);
}

.page-faq .support-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(4, 17, 31, 0.22);
  background: rgba(255, 106, 26, 0.09);
}

.page-faq .support-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(4, 17, 31, 0.6);
}

.page-faq .support-mail {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-950);
  word-break: break-all;
}

.page-faq .support-meta {
  display: grid;
  gap: 0.55rem;
  margin: 1.1rem 0 0;
}

.page-faq .support-meta-row {
  display: grid;
  grid-template-columns: minmax(0, 5.5rem) minmax(0, 1fr);
  gap: 0.6rem;
  padding-top: 0.55rem;
  border-top: 1px solid rgba(4, 17, 31, 0.16);
}

.page-faq .support-meta dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(4, 17, 31, 0.62);
  padding-top: 0.15rem;
}

.page-faq .support-meta dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ink-950);
}

.page-faq .support-meta a {
  color: var(--cyan-700);
  border-bottom-color: rgba(14, 124, 134, 0.5);
}

.page-faq .support-meta a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .cat-card:last-child {
    grid-column: span 2;
  }
}

@media (min-width: 960px) {
  .page-faq .entry-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-faq .entry-figure img {
    aspect-ratio: 4 / 5;
  }

  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-rail .toc {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .cat-grid {
    gap: 1rem;
  }

  .page-faq .faq-item-body {
    padding-right: 2.6rem;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-hero::after {
    display: none;
  }

  .page-faq .entry-step,
  .page-faq .step-item {
    gap: 0.35rem 0.85rem;
  }

  .page-faq .step-num {
    font-size: 1.6rem;
  }

  .page-faq .faq-item-body {
    padding-left: 1.05rem;
  }

  .page-faq .support-meta-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.15rem;
  }

  .page-faq .faq-hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}
<<<END>>>