.page-faq {
  --faq-gap: clamp(22px, 3.5vw, 44px);
  --faq-pad: clamp(36px, 6vw, 72px);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
}

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

.page-faq h2 {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

/* ---------- Hero ---------- */

.page-faq .kb-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(24px, 4vw, 44px);
  overflow: hidden;
}

.page-faq .kb-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -10%;
  width: min(760px, 92%);
  height: 460px;
  background:
    radial-gradient(58% 58% at 68% 26%, rgba(200, 247, 81, 0.13), transparent 72%),
    radial-gradient(48% 48% at 96% 64%, rgba(240, 169, 59, 0.09), transparent 72%);
  pointer-events: none;
}

.page-faq .kb-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  margin-top: 18px;
}

.page-faq .kb-hero .display {
  margin: 14px 0 0;
  max-width: 13em;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.06;
}

.page-faq .kb-hero .lede {
  margin: 18px 0 0;
  max-width: 32em;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
}

.page-faq .kb-hero-aside {
  border-top: 3px solid var(--lime-dim);
  padding-top: 14px;
}

.page-faq .kb-hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-faq .kb-hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .kb-hero-stats li:last-child {
  border-bottom: 0;
}

.page-faq .kb-hero-stats .num {
  flex: 0 0 auto;
  min-width: 2.4ch;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .kb-stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@media (min-width: 920px) {
  .page-faq .kb-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(28px, 4vw, 64px);
  }
}

/* ---------- 章节标题 ---------- */

.page-faq .kb-section-head {
  display: grid;
  gap: 10px;
  max-width: 40em;
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 先看这三个 ---------- */

.page-faq .kb-top3-section {
  background: var(--surface);
  border-top: 3px solid var(--line);
  border-bottom: 3px solid var(--line);
}

.page-faq .kb-top3 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-faq .kb-top3-item {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-faq .kb-top3-item:first-child {
  border-top: 3px solid var(--lime-dim);
}

.page-faq .kb-top3-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .kb-top3-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-faq .kb-top3-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 28em;
}

@media (min-width: 800px) {
  .page-faq .kb-top3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .kb-top3-item {
    padding: 24px 28px 8px 0;
    border-top: 3px solid var(--lime-dim);
  }

  .page-faq .kb-top3-item + .kb-top3-item {
    padding-left: 28px;
    border-left: 1px solid var(--line);
  }
}

/* ---------- 编号步骤 ---------- */

.page-faq .kb-steps {
  counter-reset: kbstep;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .kb-steps li {
  position: relative;
  counter-increment: kbstep;
  padding: 0 0 16px 42px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 30em;
}

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

.page-faq .kb-steps li::before {
  content: counter(kbstep);
  position: absolute;
  left: 0;
  top: 0;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 2px solid var(--lime-dim);
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
}

.page-faq .kb-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 30px;
  bottom: 6px;
  width: 2px;
  background: var(--line);
}

/* ---------- 标签切换 ---------- */

.page-faq .kb-answers-section {
  padding: var(--faq-pad) 0;
}

.page-faq .kb-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .kb-tablist .tab {
  appearance: none;
  border: 3px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--muted);
  padding: 10px 20px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-faq .kb-tablist .tab:hover {
  border-color: var(--lime-dim);
  color: var(--text);
}

.page-faq .kb-tablist .tab[aria-selected="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--on-accent);
  font-weight: 700;
}

.page-faq .kb-panel {
  animation: kb-fade 0.22s ease both;
}

@keyframes kb-fade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 索引 + 答案 ---------- */

.page-faq .kb-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  padding-top: clamp(20px, 3vw, 30px);
}

.page-faq .kb-index-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .kb-index-link {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 10px 12px;
  border-left: 3px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.page-faq .kb-index-link .num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .kb-index-link:hover,
.page-faq .kb-index-link:focus-visible {
  color: var(--text);
  border-left-color: var(--lime-dim);
  background: var(--surface-2);
}

.page-faq .kb-index-link.is-current {
  color: var(--text);
  font-weight: 500;
  border-left-color: var(--lime);
  background: var(--accent-soft);
}

/* ---------- 问答条目 ---------- */

.page-faq .kb-answers {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-faq .kb-item {
  border-top: 1px solid var(--line);
  scroll-margin-top: 112px;
}

.page-faq .kb-item:first-child {
  border-top: 3px solid var(--lime-dim);
}

.page-faq .kb-q-summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .kb-q-summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .kb-item details[open] > .kb-q-summary::after {
  content: "\2013";
}

.page-faq .kb-q-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .kb-q-title {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.page-faq .kb-q-body {
  padding: 0 0 22px 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .kb-q-body p {
  margin: 0 0 4px;
}

.page-faq .kb-q-body p + p {
  margin-top: 12px;
}

.page-faq .kb-figure {
  margin: 12px 0 32px;
}

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

@media (min-width: 900px) {
  .page-faq .kb-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .kb-index {
    position: sticky;
    top: 108px;
    align-self: start;
  }
}

/* ---------- 人工渠道 ---------- */

.page-faq .kb-help {
  background: var(--surface-2);
  border-top: 3px solid var(--lime-dim);
}

.page-faq .kb-help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .kb-help-text {
  margin: 16px 0 22px;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .kb-next {
  margin: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .kb-next .link-inline {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--lime-dim);
  padding-bottom: 1px;
}

.page-faq .kb-next .link-inline:hover,
.page-faq .kb-next .link-inline:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-faq .kb-contact-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-faq .kb-contact-row {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .kb-contact-row:first-child {
  border-top: 3px solid var(--line);
}

.page-faq .kb-contact-label {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-faq .kb-contact-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
  word-break: break-word;
}

.page-faq .kb-contact-note {
  margin: 0;
  max-width: 28em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 880px) {
  .page-faq .kb-help-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(32px, 5vw, 72px);
  }
}

/* ---------- 动效克制 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .kb-panel {
    animation: none;
  }

  .page-faq * {
    transition-duration: 0.01ms !important;
  }
}
<<<END>>>