.page-faq {
  --faq-glass: rgba(18, 37, 54, 0.76);
  --faq-glass-line: rgba(79, 240, 208, 0.24);
  --faq-radius: 14px;
  --faq-shadow: 0 26px 56px -38px rgba(0, 0, 0, 0.95);
  --faq-pad: clamp(18px, 3vw, 32px);
  --faq-sticky-top: 108px;
  --faq-ink-soft: rgba(26, 35, 43, 0.78);
  --faq-ink-faint: rgba(26, 35, 43, 0.14);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  padding: clamp(32px, 5vw, 64px) 0 clamp(38px, 6vw, 76px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -12% -10% 0 -10%;
  background-image:
    repeating-radial-gradient(circle at 86% 6%, rgba(79, 240, 208, 0.16) 0 1px, transparent 1px 54px),
    repeating-linear-gradient(90deg, rgba(143, 163, 179, 0.07) 0 1px, transparent 1px 96px);
  pointer-events: none;
}

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

.page-faq .faq-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--steel);
}

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

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

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-faq .faq-h1-sub {
  display: block;
  color: var(--cyan);
}

.page-faq .faq-lede {
  max-width: 46ch;
  margin: 0 0 26px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(251, 247, 239, 0.82);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-panel {
  background: var(--paper);
  color: var(--graphite);
  border-radius: var(--faq-radius);
  border-top: 4px solid var(--cyan);
  padding: var(--faq-pad);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-panel-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(26, 35, 43, 0.55);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 14px;
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--contour);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--teal-ink);
}

.page-faq .faq-stat-txt {
  font-size: 13px;
  line-height: 1.5;
  color: var(--faq-ink-soft);
}

/* ---------- 通用小节头 ---------- */
.page-faq .faq-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-sec-head h2 {
  margin: 8px 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-faq .faq-sec-lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-triage {
  background: var(--paper);
  color: var(--graphite);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-faq .faq-triage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--faq-ink-faint);
  border-radius: 12px;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-steps li:hover {
  border-color: rgba(14, 127, 114, 0.45);
  transform: translateY(-2px);
}

.page-faq .faq-step-key {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-steps h3 {
  margin: 0;
  font-family: var(--font-title);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--graphite);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--faq-radius);
  overflow: hidden;
  border: 1px solid rgba(44, 74, 90, 0.4);
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px rgba(79, 240, 208, 0.12), var(--faq-shadow);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  background: var(--ink);
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
}

.page-faq .faq-triage-figure {
  justify-self: center;
  width: 100%;
  max-width: 420px;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-answers {
  background: var(--ink-2);
  color: var(--white);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-faq .faq-answers-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
  align-items: start;
}

.page-faq .faq-toc {
  background: var(--faq-glass);
  border: 1px solid var(--faq-glass-line);
  border-radius: var(--faq-radius);
  padding: 20px;
  box-shadow: inset 0 1px 0 rgba(251, 247, 239, 0.08);
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-toc a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--white);
  text-decoration: none;
  font-size: 15px;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  background: rgba(79, 240, 208, 0.13);
  color: var(--cyan);
}

.page-faq .faq-toc-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
}

.page-faq .faq-toc-note {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-group {
  background: var(--paper);
  color: var(--graphite);
  border-radius: var(--faq-radius);
  padding: clamp(18px, 2.4vw, 28px);
  box-shadow: var(--faq-shadow);
  scroll-margin-top: 120px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--graphite);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--ink);
  color: var(--cyan);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
  letter-spacing: 0;
  color: var(--graphite);
}

.page-faq .faq-group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(26, 35, 43, 0.55);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-ink-faint);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--graphite);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--teal-ink);
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--teal-ink);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
}

.page-faq .faq-no {
  flex: none;
  min-width: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.9;
  color: rgba(26, 35, 43, 0.42);
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-a {
  padding: 0 0 18px 38px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 62ch;
}

/* ---------- 阅读方法 ---------- */
.page-faq .faq-read {
  background: var(--white);
  color: var(--graphite);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-faq .faq-read-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-read-body h2 {
  margin: 8px 0 14px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--graphite);
}

.page-faq .faq-read-lede {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-read-points {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-read-points li {
  display: grid;
  gap: 4px;
  padding-left: 16px;
  border-left: 3px solid var(--teal-ink);
}

.page-faq .faq-read-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal-ink);
}

.page-faq .faq-read-points p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 反馈准备 ---------- */
.page-faq .faq-feedback {
  background: var(--paper);
  color: var(--graphite);
  padding: clamp(42px, 6vw, 84px) 0 clamp(52px, 7vw, 96px);
}

.page-faq .faq-feedback-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
  padding: var(--faq-pad);
  background: var(--ink);
  color: var(--white);
  border-radius: var(--faq-radius);
  border-left: 5px solid var(--cyan);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-feedback-main h2 {
  margin: 8px 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-feedback-lede {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(251, 247, 239, 0.78);
}

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

.page-faq .faq-need-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .faq-need-key {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-need-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(251, 247, 239, 0.72);
}

.page-faq .faq-need-list strong {
  display: block;
  color: var(--white);
  font-weight: 600;
}

.page-faq .faq-feedback-side {
  padding: 20px;
  border-radius: 12px;
  background: rgba(79, 240, 208, 0.08);
  border: 1px solid var(--faq-glass-line);
}

.page-faq .faq-side-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-side-text {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(251, 247, 239, 0.8);
}

.page-faq .faq-side-alt {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-side-alt a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 240, 208, 0.4);
}

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

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-triage-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
  }

  .page-faq .faq-triage-figure {
    max-width: none;
    justify-self: stretch;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-read-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-faq .faq-feedback-card {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-answers-grid {
    grid-template-columns: 268px minmax(0, 1fr);
  }

  .page-faq .faq-toc-wrap {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 520px) {
  .page-faq .faq-stats {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .page-faq .faq-steps li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 16px;
  }

  .page-faq .faq-step-key {
    width: 36px;
    height: 36px;
    font-size: 15px;
  }

  .page-faq .faq-item summary {
    font-size: 15px;
    gap: 8px;
  }

  .page-faq .faq-a {
    padding-left: 0;
  }

  .page-faq .faq-group-count {
    margin-left: 0;
  }

  .page-faq .faq-hero-actions .btn {
    flex: 1 1 140px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-steps li,
  .page-faq .faq-toc a,
  .page-faq .faq-item summary,
  .page-faq .faq-context a {
    transition: none;
  }

  .page-faq .faq-steps li:hover {
    transform: none;
  }
}
<<<END>>>