.page-faq {
  --faq-line: 1px solid var(--steel-700);
  --faq-radius: 4px;
  --faq-top-offset: 6rem;
  position: relative;
  display: block;
  overflow-x: clip;
  color: var(--off-white);
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse 85% 55% at 90% 0%, rgba(57, 255, 136, 0.055), transparent 62%),
    radial-gradient(ellipse 70% 50% at 0% 34%, rgba(47, 123, 255, 0.06), transparent 66%),
    var(--midnight-900);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq a {
  color: inherit;
}

.page-faq .faq-crumb {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(1.5rem, 3.5vw, 2.5rem) clamp(2.25rem, 5vw, 4rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -30%;
  right: -18%;
  width: min(720px, 78vw);
  height: 150%;
  background: linear-gradient(158deg, rgba(57, 255, 136, 0.1), rgba(47, 123, 255, 0.07) 52%, transparent 76%);
  transform: skewX(-14deg);
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4.5vw, 3rem);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.25rem, 6.5vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  color: var(--off-white);
}

.page-faq .faq-hero__copy .dj-lede {
  margin: 1.1rem 0 0;
  max-width: 54ch;
  color: var(--cool-gray);
  line-height: 1.85;
}

.page-faq .faq-hero__copy .dj-lede a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.5rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding-top: clamp(1.1rem, 2.5vw, 1.5rem);
  border-top: var(--faq-line);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-faq .faq-hero__num {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  line-height: 1;
  color: var(--green);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__label {
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--cool-gray);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--faq-line);
  border-radius: var(--faq-radius);
  box-shadow: 0 30px 70px -40px rgba(0, 0, 0, 0.9);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4.5vw, 3rem);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(3rem, 7vw, 5.5rem);
}

.page-faq .faq-rail__title {
  margin: 0 0 0.85rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cool-gray);
}

.page-faq .faq-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-rail__link {
  display: block;
  padding: 0.5rem 0.85rem;
  border: var(--faq-line);
  border-radius: var(--faq-radius);
  font-size: 0.9375rem;
  color: var(--cool-gray);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--off-white);
  border-color: var(--green);
  background-color: rgba(57, 255, 136, 0.07);
}

.page-faq .faq-rail__hint {
  margin: 1.25rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--cool-gray);
}

.page-faq .faq-rail__hint a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-rail__hint a:hover,
.page-faq .faq-rail__hint a:focus-visible {
  color: var(--green);
}

/* ---------- 分类章节 ---------- */

.page-faq .faq-cat {
  padding-block: clamp(1.75rem, 4vw, 3rem);
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-cat:first-child {
  padding-top: 0;
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.page-faq .faq-cat__no {
  flex: none;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--off-white);
}

.page-faq .faq-cat__lede {
  margin: 0 0 clamp(1.25rem, 2.5vw, 1.75rem);
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--cool-gray);
}

.page-faq .faq-cat__lede a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-cat__lede a:hover,
.page-faq .faq-cat__lede a:focus-visible {
  color: var(--green);
}

/* ---------- 三步上手 ---------- */

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background-color: var(--steel-700);
  border: var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-step {
  display: flex;
  gap: 1rem;
  padding: clamp(1.05rem, 2.6vw, 1.6rem);
  background-color: var(--midnight-800);
}

.page-faq .faq-step__no {
  flex: none;
  padding-top: 0.22rem;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--green);
}

.page-faq .faq-step__title {
  margin: 0 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--off-white);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--cool-gray);
}

.page-faq .faq-step__body a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-step__body a:hover,
.page-faq .faq-step__body a:focus-visible {
  color: var(--green);
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-list {
  border-top: var(--faq-line);
}

.page-faq .faq-item {
  border-bottom: var(--faq-line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--off-white);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

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

.page-faq .faq-item[open] > summary {
  color: var(--green);
}

.page-faq .faq-item__mark {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 0.28rem;
  border: 1px solid var(--steel-700);
  border-radius: 2px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background-color: var(--cool-gray);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 50%;
  top: 25%;
  bottom: 25%;
  width: 1px;
  margin-left: -0.5px;
}

.page-faq .faq-item__mark::after {
  top: 50%;
  left: 25%;
  right: 25%;
  height: 1px;
  margin-top: -0.5px;
}

.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--green);
  background-color: rgba(57, 255, 136, 0.12);
}

.page-faq .faq-item[open] .faq-item__mark::before {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  background-color: var(--green);
}

.page-faq .faq-item__a {
  max-width: 70ch;
  padding: 0 0 1.25rem;
  animation: faq-reveal 0.26s var(--ease);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.7rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--cool-gray);
}

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

.page-faq .faq-item__a a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--green);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 说明通道 ---------- */

.page-faq .faq-notice__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-faq .faq-notice__media {
  margin: 0;
  border: var(--faq-line);
  border-radius: var(--faq-radius);
  box-shadow: 0 24px 60px -40px rgba(0, 0, 0, 0.9);
}

/* ---------- 联系支持 ---------- */

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--steel-700);
  border: var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-contact__card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.15rem, 2.6vw, 1.75rem);
  background-color: var(--midnight-800);
}

.page-faq .faq-contact__label {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cool-gray);
}

.page-faq .faq-contact__value {
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
  color: var(--green);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--cool-gray);
}

.page-faq .faq-contact__cta {
  align-self: flex-start;
  margin-top: 0.35rem;
  text-decoration: none;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-notice__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-faq .faq-notice__media {
    position: sticky;
    top: var(--faq-top-offset);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: var(--faq-top-offset);
  }

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

  .page-faq .faq-rail__link {
    border: 0;
    border-left: 2px solid var(--steel-700);
    border-radius: 0;
    padding: 0.6rem 0 0.6rem 0.9rem;
    background-color: transparent;
    font-size: 0.9688rem;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--green);
    background-image: linear-gradient(90deg, rgba(57, 255, 136, 0.09), transparent 82%);
  }
}

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

  .page-faq .faq-contact__card--wide {
    grid-column: auto;
  }
}

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

  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item > summary,
  .page-faq .faq-rail__link {
    transition: none;
  }
}
<<<END>>>