.page-faq {
  background: var(--ink);
  color: var(--text-on-dark);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--f-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.08;
  margin: 0;
}

.page-faq .mono {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 01 首屏 ---------- */
.page-faq .kb-hero {
  position: relative;
  padding: clamp(38px, 6vw, 76px) 0 clamp(34px, 5vw, 58px);
  background:
    radial-gradient(115% 90% at 8% 0%, rgba(27, 79, 156, 0.55) 0%, rgba(10, 18, 32, 0) 64%),
    linear-gradient(158deg, var(--ink-deep) 0%, var(--ink) 58%, #071223 100%);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .kb-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(150, 190, 235, 0.07) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(150, 190, 235, 0.07) 0 1px, transparent 1px 76px);
  pointer-events: none;
}

.page-faq .kb-hero-inner {
  position: relative;
  z-index: 2;
}

.page-faq .breadcrumb {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-on-dark-dim);
  display: flex;
  gap: 8px;
  align-items: center;
}

.page-faq .breadcrumb a {
  color: var(--electric);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .eyebrow {
  margin: 24px 0 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--electric);
}

.page-faq .kb-hero h1 {
  margin-top: 12px;
  font-size: clamp(34px, 6.4vw, 72px);
  color: var(--white);
  max-width: 16ch;
}

.page-faq .kb-lead {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-faq .kb-search {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 30px;
  max-width: 740px;
  padding: 14px 16px;
  border: 1px solid var(--line-dark-strong);
  background: rgba(6, 12, 22, 0.62);
}

.page-faq .kb-search label {
  color: var(--gold);
  flex: 0 0 auto;
}

.page-faq .kb-search-input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 8px 2px;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-dark-strong);
  color: var(--white);
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .kb-search-input::placeholder {
  color: var(--text-on-dark-dim);
}

.page-faq .kb-search-input:focus {
  outline: none;
  border-bottom-color: var(--electric);
}

.page-faq .kb-search-count {
  margin-left: auto;
  color: var(--text-on-dark-dim);
}

/* ---------- 02 场景分类 ---------- */
.page-faq .kb-index {
  position: relative;
  overflow: hidden;
  padding: clamp(38px, 5.5vw, 68px) 0;
  background: var(--ink-deep);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .kb-index-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.65);
}

.page-faq .kb-index .container {
  position: relative;
  z-index: 2;
}

.page-faq .kb-index h2 {
  margin-top: 10px;
  font-size: clamp(24px, 3.6vw, 38px);
  color: var(--white);
}

.page-faq .kb-index .mono {
  color: var(--electric);
}

.page-faq .kb-cats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .kb-cats a {
  display: block;
  height: 100%;
  padding: 18px 16px;
  border: 1px solid var(--line-dark-strong);
  background: rgba(18, 58, 107, 0.26);
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .kb-cats a:hover,
.page-faq .kb-cats a:focus-visible {
  border-color: var(--electric);
  background: rgba(47, 227, 208, 0.09);
}

.page-faq .kb-cats .mono {
  display: block;
  color: var(--electric);
}

.page-faq .kb-cats strong {
  display: block;
  margin-top: 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-faq .kb-cat-note {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-on-dark-dim);
}

/* ---------- 03 高频问题 ---------- */
.page-faq .kb-hot {
  padding: clamp(42px, 6vw, 80px) 0;
  background: var(--card);
  color: var(--text);
}

.page-faq .kb-hot .mono {
  color: var(--deep-teal);
}

.page-faq .kb-hot h2 {
  margin-top: 10px;
  font-size: clamp(25px, 3.8vw, 40px);
  color: var(--text);
}

.page-faq .kb-hot-sub {
  margin: 12px 0 0;
  max-width: 620px;
  font-size: 15px;
  color: var(--muted);
}

.page-faq .kb-grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
}

.page-faq .kb-item {
  border: 1px solid var(--line);
  background: var(--white);
  transition: border-color 0.2s ease;
}

.page-faq .kb-item[open] {
  border-color: var(--deep-teal);
}

.page-faq .kb-item summary {
  position: relative;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 15px 44px 15px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .kb-q-no {
  flex: 0 0 auto;
  padding-top: 3px;
  color: var(--deep-teal);
}

.page-faq .kb-q-text {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .kb-q-mark {
  position: absolute;
  right: 16px;
  top: 22px;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--deep-teal);
  border-bottom: 1.5px solid var(--deep-teal);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.page-faq .kb-item[open] .kb-q-mark {
  transform: rotate(-135deg);
}

.page-faq .kb-a {
  margin: 0 14px 0 14px;
  padding: 13px 0 17px;
  border-top: 1px solid var(--line);
}

.page-faq .kb-a p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .kb-a ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: kbstep;
}

.page-faq .kb-a li {
  counter-increment: kbstep;
  position: relative;
  padding-left: 27px;
  margin-bottom: 7px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .kb-a li:last-child {
  margin-bottom: 0;
}

.page-faq .kb-a li::before {
  content: counter(kbstep);
  position: absolute;
  left: 0;
  top: 4px;
  width: 17px;
  height: 17px;
  line-height: 17px;
  text-align: center;
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--white);
  background: var(--deep-teal);
}

/* ---------- 04 安卓安装 ---------- */
.page-faq .kb-android {
  padding: clamp(42px, 6vw, 80px) 0;
  background: linear-gradient(172deg, var(--ink) 0%, var(--tactic) 140%);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .kb-android .mono {
  color: var(--electric);
}

.page-faq .kb-android h2 {
  margin-top: 10px;
  font-size: clamp(25px, 3.8vw, 40px);
  color: var(--white);
}

.page-faq .kb-android-body {
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-faq .kb-problems {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .kb-problems li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-top: 1px solid var(--line-dark);
}

.page-faq .kb-problems li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .kb-sq {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--electric);
  color: var(--electric);
  font-size: 11px;
  line-height: 1;
}

.page-faq .kb-problems strong {
  display: block;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.5;
}

.page-faq .kb-problems p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-on-dark-dim);
}

.page-faq .kb-android-main .btn {
  margin-top: 24px;
}

.page-faq .kb-figure {
  margin: 0;
  border: 1px solid var(--line-dark-strong);
  background: rgba(6, 12, 22, 0.55);
}

.page-faq .kb-figure img {
  width: 100%;
}

.page-faq .kb-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-dark);
  color: var(--text-on-dark-dim);
  font-size: 11.5px;
  letter-spacing: 0.05em;
}

/* ---------- 05 收藏与同步 ---------- */
.page-faq .kb-fav {
  padding: clamp(42px, 6vw, 80px) 0;
  background: var(--white);
  color: var(--text);
}

.page-faq .kb-fav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-faq .kb-fav .mono {
  color: var(--deep-teal);
}

.page-faq .kb-fav h2 {
  margin-top: 10px;
  font-size: clamp(25px, 3.8vw, 38px);
  color: var(--text);
}

.page-faq .kb-fav-intro p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .kb-fav-note {
  border-left: 2px solid var(--gold);
  padding-left: 12px;
  color: var(--text) !important;
  font-size: 14px !important;
}

.page-faq .kb-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .kb-steps li {
  position: relative;
  padding: 0 0 20px 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

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

.page-faq .kb-steps li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--deep-teal);
}

.page-faq .kb-steps .mono {
  display: block;
  margin-bottom: 2px;
  color: var(--deep-teal);
}

/* ---------- 06 联系前自查 ---------- */
.page-faq .kb-before {
  padding: clamp(42px, 6vw, 80px) 0;
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-top: 1px solid var(--line-dark);
}

.page-faq .kb-before .mono {
  color: var(--gold);
}

.page-faq .kb-before h2 {
  margin-top: 10px;
  font-size: clamp(25px, 3.8vw, 38px);
  color: var(--white);
}

.page-faq .kb-before-sub {
  margin: 14px 0 0;
  max-width: 660px;
  font-size: 15px;
  color: var(--text-on-dark-dim);
}

.page-faq .kb-prep {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .kb-prep li {
  padding: 18px 16px;
  border: 1px solid var(--line-dark-strong);
  border-left: 2px solid var(--gold);
  background: rgba(18, 58, 107, 0.24);
}

.page-faq .kb-prep .mono {
  display: block;
  color: var(--gold);
}

.page-faq .kb-prep strong {
  display: block;
  margin-top: 6px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .kb-prep p {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-on-dark-dim);
}

.page-faq .kb-before-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .kb-before-link {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-on-dark-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark-strong);
  padding-bottom: 2px;
}

.page-faq .kb-before-link:hover {
  color: var(--electric);
  border-bottom-color: var(--electric);
}

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

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

@media (min-width: 840px) {
  .page-faq .kb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 18px;
  }

  .page-faq .kb-item:nth-child(even) {
    margin-top: 32px;
  }
}

@media (min-width: 980px) {
  .page-faq .kb-cats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .kb-android-body {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
  }

  .page-faq .kb-fav-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 48px;
  }

  .page-faq .kb-prep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .kb-cats a,
  .page-faq .kb-item,
  .page-faq .kb-q-mark {
    transition: none;
  }
}
<<<END>>>