.page-faq {
  --faq-rail: 232px;
  --faq-line: 3px;
  --faq-shadow: 8px 8px 0 var(--night-blue);
  background: var(--snow);
  color: var(--graphite);
  display: block;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  background: var(--lake-blue);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 92%);
  padding: 52px 0 104px;
  margin-top: 8px;
}

.page-faq .faq-hero-copy {
  max-width: 62ch;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(34px, 6.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--snow);
  margin: 10px 0 18px;
}

.page-faq .faq-hero .eyebrow {
  color: var(--barley-gold);
  letter-spacing: 0.14em;
}

.page-faq .faq-hero .lede {
  color: var(--ice-blue);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

.page-faq .faq-hero-media {
  margin: -60px 0 44px;
  position: relative;
  z-index: 2;
  box-shadow: var(--faq-shadow);
}

/* ===== 两栏走廊 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 56px;
}

.page-faq .faq-rail {
  border-top: var(--faq-line) solid var(--graphite);
  padding-top: 14px;
}

.page-faq .faq-rail-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fog);
  margin: 0 0 10px;
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-rail-list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  border: 2px solid var(--ice-blue);
  background: var(--snow);
  color: var(--graphite);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  border-color: var(--barley-gold);
  color: var(--lake-blue);
  transform: translateX(2px);
}

.page-faq .faq-rail-list .num {
  font-size: 12px;
  color: var(--barley-gold);
}

/* ===== 分组 ===== */
.page-faq .faq-group {
  scroll-margin-top: 96px;
  margin-bottom: 44px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: var(--faq-line) solid var(--graphite);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.page-faq .faq-group-head .num {
  font-size: 14px;
  color: var(--barley-gold);
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.2;
  margin: 0;
  color: var(--graphite);
}

/* ===== 折叠面板 ===== */
.page-faq .faq-item {
  position: relative;
  border: var(--faq-line) solid var(--graphite);
  background: var(--snow);
  box-shadow: 6px 6px 0 var(--night-blue);
  margin: 0 0 16px;
  transition: box-shadow .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--barley-gold);
  transition: width .24s var(--ease);
}

.page-faq .faq-item:hover {
  transform: translate(-1px, -1px);
  box-shadow: 8px 8px 0 var(--night-blue);
}

.page-faq .faq-item[open] {
  box-shadow: 8px 8px 0 var(--lake-blue);
}

.page-faq .faq-item[open]::before {
  width: 7px;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  list-style: none;
  cursor: pointer;
  padding: 17px 18px 17px 22px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--graphite);
}

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

.page-faq .faq-q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lava-orange);
  padding-top: 2px;
  transition: transform .2s var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
}

.page-faq .faq-q:focus-visible {
  outline: 3px solid var(--electric-teal);
  outline-offset: -3px;
}

.page-faq .faq-a {
  padding: 0 22px 20px 22px;
  border-top: 1px dashed var(--ice-blue);
  margin-top: 2px;
}

.page-faq .faq-a p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--graphite);
}

/* ===== 分步演示 ===== */
.page-faq .faq-steps {
  list-style: none;
  margin: 18px 0 4px;
  padding: 0;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding: 0 0 18px 46px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--barley-gold);
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 20px;
  bottom: 2px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--barley-gold) 0 4px, transparent 4px 9px);
}

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

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ===== 内联图 ===== */
.page-faq .faq-inline-media {
  margin: 26px 0 0;
  box-shadow: 6px 6px 0 var(--ice-blue);
}

/* ===== 联系路径条 ===== */
.page-faq .faq-contact {
  position: relative;
  margin-top: 24px;
  background: var(--night-blue);
  color: var(--snow);
  padding: 56px 0 60px;
  overflow: hidden;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  right: -110px;
  top: -70px;
  width: 380px;
  height: 380px;
  background: var(--lake-blue);
  transform: rotate(24deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-contact::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  border: 3px solid var(--barley-gold);
  transform: rotate(18deg);
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-contact-band {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .faq-contact-copy .eyebrow {
  color: var(--electric-teal);
}

.page-faq .faq-contact-copy h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.16;
  margin: 10px 0 14px;
  color: var(--snow);
}

.page-faq .faq-contact-copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ice-blue);
}

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

.page-faq .faq-path {
  position: relative;
  border: 2px solid rgba(207, 227, 240, 0.32);
  background: rgba(7, 28, 43, 0.55);
  padding: 16px 18px 16px 56px;
}

.page-faq .faq-path .num {
  position: absolute;
  left: 18px;
  top: 16px;
  font-size: 13px;
  color: var(--lava-orange);
}

.page-faq .faq-path-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--barley-gold);
}

.page-faq .faq-path-value {
  margin: 6px 0 4px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--snow);
  word-break: break-word;
}

.page-faq .faq-path-value a {
  color: var(--electric-teal);
  text-decoration: none;
  border-bottom: 2px solid var(--lava-orange);
  padding-bottom: 1px;
}

.page-faq .faq-path-value a:hover,
.page-faq .faq-path-value a:focus-visible {
  color: var(--snow);
  background: var(--lava-orange);
}

.page-faq .faq-path-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ice-blue);
  opacity: 0.8;
}

/* ===== 响应式 ===== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 68px 0 128px;
  }

  .page-faq .faq-hero-media {
    margin-top: -72px;
    margin-bottom: 56px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    padding-bottom: 72px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    align-self: start;
    border-top-color: var(--barley-gold);
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-faq .faq-rail-list li {
    border-bottom: 1px solid var(--ice-blue);
  }

  .page-faq .faq-rail-list a {
    width: 100%;
    border: 0;
    background: transparent;
    padding: 13px 4px;
    justify-content: flex-start;
  }

  .page-faq .faq-rail-list a:hover,
  .page-faq .faq-rail-list a:focus-visible {
    border-left: 4px solid var(--barley-gold);
    padding-left: 10px;
    transform: none;
    background: var(--snow);
  }

  .page-faq .faq-contact {
    padding: 72px 0 80px;
  }

  .page-faq .faq-contact-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-paths {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item::before,
  .page-faq .faq-q::after,
  .page-faq .faq-rail-list a {
    transition: none;
  }

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