.page-faq {
  --faq-panel: rgba(30, 90, 80, 0.34);
  --faq-panel-deep: rgba(10, 27, 50, 0.74);
  --faq-edge: rgba(169, 187, 181, 0.22);
  --faq-edge-strong: rgba(62, 240, 216, 0.42);
  --faq-line: rgba(62, 240, 216, 0.28);
  --faq-shadow: 0 26px 60px -34px rgba(0, 0, 0, 0.92);
  background: var(--ink);
  color: var(--cream);
  overflow-x: hidden;
}

.page-faq :where(section[id]) {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 5vw, 52px) 0 clamp(26px, 5vw, 52px);
  background:
    radial-gradient(110% 82% at 84% 2%, rgba(62, 240, 216, 0.16), transparent 58%),
    radial-gradient(88% 76% at 4% 6%, rgba(255, 155, 81, 0.13), transparent 62%),
    linear-gradient(164deg, var(--ink) 0%, var(--night) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -40%;
  width: 62%;
  height: 90%;
  background: repeating-linear-gradient(
    112deg,
    rgba(62, 240, 216, 0.07) 0 2px,
    transparent 2px 18px
  );
  transform: skewX(-6deg);
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  align-items: end;
  margin-top: clamp(16px, 3vw, 28px);
}

.page-faq .faq-hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 7.4vw, 4.3rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0.22em 0 0.5em;
  color: var(--cream);
  text-wrap: balance;
}

.page-faq .faq-hero__copy .lede {
  color: var(--mist);
  font-size: clamp(0.94rem, 2.2vw, 1.02rem);
  line-height: 1.75;
  max-width: 54ch;
}

.page-faq .faq-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  background: var(--faq-panel-deep);
  border: 1px solid var(--faq-edge);
}

.page-faq .faq-metric__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-metric__label {
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--fog);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--faq-edge);
  box-shadow: var(--faq-shadow);
  background: var(--night);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(8, 42, 36, 0) 40%, rgba(8, 42, 36, 0.62) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__figure .image-frame__caption {
  position: relative;
  z-index: 1;
  color: var(--mist);
}

/* ---------- 分类速查 ---------- */
.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: clamp(20px, 4vw, 34px);
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-faq .faq-jump::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump a {
  flex: 0 0 auto;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--faq-edge);
  background: rgba(8, 42, 36, 0.6);
  color: var(--mist);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--cyan);
  border-color: var(--faq-edge-strong);
  background: rgba(30, 90, 80, 0.5);
}

/* ---------- 正文区 ---------- */
.page-faq .faq-body {
  padding: clamp(32px, 6vw, 68px) 0 clamp(40px, 7vw, 80px);
}

.page-faq .faq-section {
  max-width: 880px;
  margin: 0 auto clamp(34px, 6.5vw, 68px);
}

.page-faq .faq-section:last-of-type {
  margin-bottom: clamp(30px, 5vw, 52px);
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 24px);
  padding-left: 16px;
  border-left: 3px solid var(--faq-line);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .faq-section__head h2 {
  font-family: var(--font-body);
  font-size: clamp(1.3rem, 3.6vw, 1.85rem);
  font-weight: 800;
  line-height: 1.26;
  margin: 0;
  color: var(--cream);
}

.page-faq .faq-section__intro {
  margin: 0;
  color: var(--fog);
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 52ch;
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 3vw, 22px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--faq-edge);
  background: var(--night);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  object-position: center 30%;
}

.page-faq .faq-figure .image-frame__caption {
  color: var(--fog);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  position: relative;
  margin-bottom: 10px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--faq-edge);
  background: linear-gradient(150deg, var(--faq-panel) 0%, var(--faq-panel-deep) 100%);
  overflow: hidden;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(62, 240, 216, 0.4);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-edge-strong);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 15px 52px 15px 20px;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.18rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

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

.page-faq .faq-answer {
  padding: 0 20px 18px;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-answer strong {
  color: var(--cream);
  font-weight: 700;
}

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 240, 216, 0.4);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

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

.page-faq .faq-answer .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 38px;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--faq-line);
  background: rgba(62, 240, 216, 0.13);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.74rem;
}

/* ---------- 尾部 ---------- */
.page-faq .faq-tail {
  max-width: 880px;
  margin: 0 auto;
}

.page-faq .faq-tail__inner {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 4vw, 34px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--faq-edge);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 155, 81, 0.14), transparent 60%),
    linear-gradient(160deg, var(--faq-panel) 0%, var(--night) 100%);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-tail__title {
  font-family: var(--font-body);
  font-size: clamp(1.2rem, 3.2vw, 1.55rem);
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--cream);
}

.page-faq .faq-tail__text {
  margin: 0;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.72;
  max-width: 46ch;
}

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

.page-faq .faq-backtop {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--fog);
  text-decoration: none;
  padding: 8px 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.page-faq :where(a, summary):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-md);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-faq .faq-hero__figure img {
    max-height: 400px;
  }

  .page-faq .faq-jump {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-faq .faq-item summary {
    font-size: 1.02rem;
    padding: 18px 56px 18px 24px;
  }

  .page-faq .faq-answer {
    padding: 0 24px 22px;
    font-size: 0.95rem;
  }

  .page-faq .faq-figure img {
    max-height: 400px;
  }

  .page-faq .faq-tail__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 26px;
  }

  .page-faq .faq-tail__actions {
    justify-content: flex-end;
    max-width: 300px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__figure img {
    max-height: 430px;
  }

  .page-faq .faq-section {
    max-width: 900px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-jump a,
  .page-faq .faq-answer a {
    transition: none;
  }
}
<<<END>>>