.page-faq {
  background: var(--paper-050);
  color: var(--ink-950);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-950);
  color: var(--white);
  padding: clamp(24px, 4vw, 40px) 0 clamp(44px, 7vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-dark-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-dark-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 212, 200, 0.16), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0 0 clamp(20px, 4vw, 34px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-crumb a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--cyan);
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.28);
}

.page-faq .faq-crumb li[aria-current] {
  color: rgba(255, 255, 255, 0.92);
}

.page-faq .hero-shell {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  margin: 0;
}

.page-faq .hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 16px 0 0;
}

.page-faq .hero-lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .finder {
  margin-top: 26px;
  padding: 16px;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
}

.page-faq .finder-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

.page-faq .finder-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .finder-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 13px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .finder-chip:hover {
  border-color: rgba(47, 212, 200, 0.6);
  background: rgba(47, 212, 200, 0.12);
  color: var(--cyan);
}

.page-faq .finder-note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}

.page-faq .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-dark-soft);
}

.page-faq .hero-stat {
  min-width: 130px;
}

.page-faq .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.42rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .stat-key {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.58);
}

.page-faq .hero-figure {
  margin: 0;
}

.page-faq .hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--line-dark);
  object-fit: cover;
  background: var(--ink-900);
}

.page-faq .hero-cap {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- 工作台骨架 ---------- */
.page-faq .kb-shell {
  display: grid;
  gap: 28px;
  padding-top: clamp(36px, 6vw, 68px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .kb-side {
  min-width: 0;
}

.page-faq .kb-index {
  border: 1px solid var(--line-light);
  border-radius: 14px;
  background: var(--white);
  padding: 16px;
}

.page-faq .kb-index .toc-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-faq .kb-index-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .kb-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 14.5px;
  color: var(--slate);
  text-decoration: none;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .kb-index-link:hover {
  background: var(--paper-100);
  color: var(--ink-950);
}

.page-faq .kb-index-link .idx {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  opacity: 0.7;
}

.page-faq .kb-index-link:hover .idx {
  color: var(--signal);
  opacity: 1;
}

.page-faq .kb-side-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-light);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .kb-main {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .kb-section {
  margin-bottom: clamp(40px, 6vw, 68px);
  scroll-margin-top: 96px;
}

.page-faq .kb-section:last-of-type {
  margin-bottom: clamp(32px, 5vw, 52px);
}

.page-faq .sec-eyebrow {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-faq .sec-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 4.6vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-faq .sec-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .kb-note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
  padding-left: 12px;
  border-left: 2px solid var(--celadon);
}

.page-faq .kb-note a,
.page-faq .qa-a a,
.page-faq .step-tip a,
.page-faq .safe-text a {
  color: var(--signal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .kb-note a:hover,
.page-faq .qa-a a:hover,
.page-faq .step-tip a:hover,
.page-faq .safe-text a:hover {
  color: var(--ink-950);
}

/* ---------- 注册四步 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step {
  --acc: var(--signal);
  position: relative;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: 14px;
  padding: 18px 16px 16px;
  overflow: hidden;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--acc);
}

.page-faq .step:nth-child(1) { --acc: var(--signal); }
.page-faq .step:nth-child(2) { --acc: var(--celadon); }
.page-faq .step:nth-child(3) { --acc: var(--amber); }
.page-faq .step:nth-child(4) { --acc: var(--violet); }

.page-faq .step-no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-faq .step-title {
  margin: 8px 0 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .step-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .step-tip {
  margin: 12px 0 0;
  padding: 8px 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-800);
  background: var(--paper-050);
  border-left: 2px solid var(--acc);
  border-radius: 0 8px 8px 0;
}

.page-faq .flow-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line-light);
  border-radius: 16px;
  overflow: hidden;
  background: var(--white);
}

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

.page-faq .flow-cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line-light);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: 12px;
  transition: border-color var(--t) var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(255, 106, 42, 0.42);
}

.page-faq .qa-q {
  position: relative;
  display: block;
  padding: 14px 44px 14px 16px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-950);
  cursor: pointer;
  list-style: none;
}

.page-faq .qa-q::-webkit-details-marker {
  display: none;
}

.page-faq .qa-q::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--signal);
  transition: transform var(--t) var(--ease);
}

.page-faq .qa[open] .qa-q::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .qa-a {
  margin: 0 16px 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-light);
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .qa-a p {
  margin: 0;
}

/* ---------- 安卓清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .check-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: 12px;
}

.page-faq .check-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border: 1px solid var(--celadon);
  border-radius: 6px;
  background: rgba(95, 191, 165, 0.16);
  color: var(--celadon);
  font-size: 12px;
  line-height: 1;
}

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

.page-faq .check-title {
  display: block;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink-950);
}

.page-faq .check-text {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 对照表 ---------- */
.page-faq .table-scroll {
  margin-top: 18px;
  overflow-x: auto;
  border: 1px solid var(--line-light);
  border-radius: 14px;
  background: var(--white);
}

.page-faq .data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line-light);
  vertical-align: top;
}

.page-faq .data-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--slate);
  background: var(--paper-100);
  white-space: nowrap;
}

.page-faq .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .data-table tbody tr:hover {
  background: var(--paper-050);
}

.page-faq .data-table td[data-state="ok"] {
  color: var(--celadon);
  font-weight: 500;
}

.page-faq .data-table td[data-state="beta"] {
  color: var(--signal);
  font-weight: 500;
}

/* ---------- 测试版对照 ---------- */
.page-faq .beta-grid {
  margin-top: 22px;
  display: grid;
  gap: 14px;
}

.page-faq .beta-card {
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: 14px;
  padding: 18px;
}

.page-faq .beta-card--amber {
  border-top: 3px solid var(--amber);
}

.page-faq .beta-card--celadon {
  border-top: 3px solid var(--celadon);
}

.page-faq .beta-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .beta-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-faq .beta-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .beta-list li {
  position: relative;
  padding-left: 15px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .beta-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--slate);
  opacity: 0.55;
}

/* ---------- 导出 ---------- */
.page-faq .export-grid {
  margin-top: 22px;
  display: grid;
  gap: 16px;
}

.page-faq .path-box {
  background: var(--ink-900);
  color: var(--white);
  border-radius: 14px;
  padding: 18px;
}

.page-faq .path-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.48);
}

.page-faq .path-code {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.86rem, 2.6vw, 1rem);
  line-height: 1.7;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .fmt-row {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-dark-soft);
  display: grid;
  gap: 10px;
}

.page-faq .fmt-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line-dark);
  border-radius: 10px;
  padding: 11px 13px;
}

.page-faq .fmt-name {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-faq .fmt-desc {
  margin: 5px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .export-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-faq .export-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .export-step:first-child {
  padding-top: 0;
}

.page-faq .export-step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .export-no {
  padding-top: 2px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-faq .export-body {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-950);
}

/* ---------- 安全清单 ---------- */
.page-faq .safe-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-light);
}

.page-faq .safe-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .safe-no {
  padding-top: 2px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--violet);
}

.page-faq .safe-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .safe-text strong {
  color: var(--ink-950);
  font-weight: 700;
}

/* ---------- 结尾行动区 ---------- */
.page-faq .kb-cta {
  position: relative;
  overflow: hidden;
  background: var(--ink-950);
  color: var(--white);
  border-radius: 18px;
  padding: clamp(24px, 4vw, 40px);
}

.page-faq .kb-cta::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 42, 0.22), transparent 70%);
  pointer-events: none;
}

.page-faq .cta-mark {
  position: relative;
  font-size: 20px;
  line-height: 1;
  color: var(--amber);
}

.page-faq .cta-title {
  position: relative;
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.4vw, 2.1rem);
  line-height: 1.18;
}

.page-faq .cta-text {
  position: relative;
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .cta-actions {
  position: relative;
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 960px) {
  .page-faq .hero-shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .hero-figure {
    margin-top: 42px;
  }

  .page-faq .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .export-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 26px;
    align-items: start;
  }

  .page-faq .kb-shell {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

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

@media (min-width: 1180px) {
  .page-faq .hero-title {
    font-size: 4.6rem;
  }

  .page-faq .qa-q {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-q::after,
  .page-faq .finder-chip,
  .page-faq .kb-index-link {
    transition: none;
  }
}
<<<END>>>