.page-faq {
  --faq-radius: var(--r-sm);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 56px;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(0, 240, 255, 0.16), transparent 62%),
    radial-gradient(90% 80% at -10% 110%, rgba(255, 90, 31, 0.14), transparent 66%);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -42%;
  width: 62%;
  height: 300px;
  background: linear-gradient(100deg, rgba(123, 43, 255, 0.22), transparent 72%);
  transform: rotate(-6deg);
  filter: blur(8px);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: 28px;
  margin-top: 22px;
}

.page-faq .faq-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-title span {
  display: inline-block;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(0, 240, 255, 0.35);
  transform: skew(-4deg);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-figure {
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-dim);
}

.page-faq .faq-figure b {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--cyan-ink);
  margin-bottom: 3px;
}

.page-faq .faq-panel-card {
  padding: 22px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-panel-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ember);
}

.page-faq .faq-panel-list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-panel-line {
  display: grid;
  gap: 3px;
}

.page-faq .faq-panel-key {
  font-size: 12px;
  color: var(--text-dim);
}

.page-faq .faq-panel-val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .faq-panel-note {
  margin: 16px 0 18px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ember-ink);
}

/* ---------- 快速诊断 ---------- */
.page-faq .faq-diagnose {
  padding: 54px 0 10px;
}

.page-faq .faq-sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-sec-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ember);
  border: 1px solid rgba(255, 90, 31, 0.4);
  border-radius: var(--r-xs);
  padding: 2px 7px;
}

.page-faq .faq-sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4.2vw, 36px);
  line-height: 1.15;
  color: var(--text);
}

.page-faq .faq-sec-lede {
  margin: 10px 0 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-tabs .tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: thin;
}

.page-faq .faq-tabs .tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: rgba(18, 24, 35, 0.72);
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-tabs .tab:hover {
  color: var(--text);
  border-color: rgba(0, 240, 255, 0.5);
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  color: var(--text);
  border-color: var(--cyan);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(0, 240, 255, 0.04));
  box-shadow: var(--glow-cyan);
}

.page-faq .tab-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ember);
}

.page-faq .faq-tabs .tabpanel {
  margin-top: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(18, 24, 35, 0.55);
}

.page-faq .faq-panel-hint {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-panel-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 240, 255, 0.45);
  padding-bottom: 2px;
}

.page-faq .faq-panel-link:hover {
  color: var(--cyan);
  border-bottom-style: solid;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 12px 14px 12px 48px;
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-radius);
  background: rgba(11, 14, 20, 0.5);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-steps strong {
  color: var(--cyan-ink);
  font-weight: 650;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: 46px 0 80px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ember);
}

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

.page-faq .faq-index-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-left: -1px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--text);
  border-left-color: var(--cyan);
  background: rgba(0, 240, 255, 0.07);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ember);
}

/* ---------- 文章块 ---------- */
.page-faq .faq-block {
  padding-bottom: 38px;
  margin-bottom: 38px;
  border-bottom: 1px dashed var(--line-soft);
  scroll-margin-top: 24px;
}

.page-faq .faq-block:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-block-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-block-num {
  flex: 0 0 auto;
  padding: 2px 7px;
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.6vw, 32px);
  line-height: 1.2;
  color: var(--text);
}

.page-faq .faq-lead {
  margin: 14px 0 0;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-lead a,
.page-faq .faq-inline-link a,
.page-faq .faq-note a,
.page-faq .faq-answer a {
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 240, 255, 0.45);
}

.page-faq .faq-lead a:hover,
.page-faq .faq-inline-link a:hover,
.page-faq .faq-note a:hover,
.page-faq .faq-answer a:hover {
  color: var(--cyan);
  border-bottom-style: solid;
}

.page-faq .faq-inline-link {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--text-dim);
}

/* ---------- 图片 ---------- */
.page-faq .faq-img {
  margin: 22px 0 0;
}

.page-faq .faq-img img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
}

.page-faq .faq-img figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-accordion {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: rgba(18, 24, 35, 0.6);
  overflow: hidden;
  transition: border-color 0.18s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(0, 240, 255, 0.35);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 13px 16px;
  cursor: pointer;
  font-size: 14.8px;
  font-weight: 650;
  line-height: 1.5;
  color: var(--text);
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  transition: transform 0.2s var(--ease);
}

.page-faq .faq-item[open] summary {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(0, 240, 255, 0.07);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ember);
}

.page-faq .faq-answer {
  padding: 14px 16px 18px;
  font-size: 14.2px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 复制行 ---------- */
.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 兼容矩阵 ---------- */
.page-faq .faq-matrix {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 22px;
  padding: 14px 10px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background:
    linear-gradient(rgba(0, 240, 255, 0.04), rgba(0, 240, 255, 0)),
    rgba(11, 14, 20, 0.6);
}

.page-faq .faq-matrix-grid line {
  stroke: var(--line-soft);
  stroke-width: 1;
}

.page-faq .faq-matrix-label text {
  fill: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-matrix-ok circle {
  fill: var(--ok);
}

.page-faq .faq-matrix-warn circle {
  fill: var(--warn);
}

.page-faq .faq-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  color: var(--text-dim);
}

.page-faq .faq-legend li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.page-faq .faq-dot-ok {
  background: var(--ok);
}

.page-faq .faq-dot-warn {
  background: var(--warn);
}

/* ---------- 联系 ---------- */
.page-faq .faq-block-contact {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 140% at 100% 0%, rgba(255, 90, 31, 0.16), transparent 62%),
    rgba(18, 24, 35, 0.72);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-contact-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--faq-radius);
  background: rgba(11, 14, 20, 0.55);
}

.page-faq .faq-contact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ember);
}

.page-faq .faq-contact-val {
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-note {
  font-size: 12.5px;
  color: var(--text-dim);
}

.page-faq .faq-note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .faq-contact-wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero {
    padding: 30px 0 72px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.82fr);
    align-items: start;
    gap: 48px;
    margin-top: 28px;
  }

  .page-faq .faq-lede {
    font-size: 16.5px;
  }

  .page-faq .faq-diagnose {
    padding: 68px 0 12px;
  }

  .page-faq .faq-body {
    padding: 56px 0 104px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-tabs .tabpanel {
    padding: 26px 28px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-block {
    padding-bottom: 48px;
    margin-bottom: 48px;
    scroll-margin-top: 90px;
  }

  .page-faq .faq-block-contact {
    padding: 32px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs .tab,
  .page-faq .faq-index-list a,
  .page-faq .faq-item,
  .page-faq .faq-item summary::after {
    transition: none;
  }

  .page-faq .faq-title span {
    transform: none;
  }
}

```