.page-faq {
  --faq-line: var(--line);
  --faq-card: rgba(19, 41, 75, 0.55);
  position: relative;
  display: block;
  padding-bottom: 3rem;
  color: var(--snow);
  font-family: var(--font-body);
  background:
    radial-gradient(115% 55% at 88% -8%, rgba(43, 179, 163, 0.16), transparent 62%),
    radial-gradient(95% 45% at -6% 106%, rgba(201, 71, 63, 0.12), transparent 60%),
    var(--night);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq a {
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq__top {
  padding-top: 1.25rem;
  padding-bottom: 0.5rem;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding: 0.5rem 0 2.25rem;
}

.page-faq .faq-hero__frame {
  padding: clamp(1.5rem, 4vw, 3.25rem);
  border: 1px solid var(--faq-line);
  background:
    linear-gradient(158deg, rgba(19, 41, 75, 0.9) 0%, rgba(11, 27, 51, 0.55) 62%, rgba(11, 27, 51, 0.3) 100%);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 1.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-hero__title {
  margin: 0 0 1.125rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6.4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 24em;
}

.page-faq .faq-hero__title-sub {
  display: block;
  color: var(--teal);
}

.page-faq .faq-hero__lead {
  margin: 0 0 1.75rem;
  max-width: 40em;
  font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
}

/* ---------- 章节头间距 ---------- */
.page-faq .section-head {
  margin-bottom: 1.5rem;
}

/* ---------- 索引卡 ---------- */
.page-faq .faq-index {
  padding: 1rem 0 2.5rem;
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-index__card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.375rem 1.25rem 1.5rem;
  background: var(--night);
  text-decoration: none;
  color: var(--snow);
  border-top: 3px solid transparent;
}

.page-faq .faq-index__card--teal { border-top-color: var(--teal); }
.page-faq .faq-index__card--red { border-top-color: var(--red); }
.page-faq .faq-index__card--yellow { border-top-color: var(--yellow); }
.page-faq .faq-index__card--green { border-top-color: var(--green); }

.page-faq .faq-index__card:hover,
.page-faq .faq-index__card:focus-visible {
  background: var(--night-2);
}

.page-faq .faq-index__num {
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-index__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.3;
}

.page-faq .faq-index__text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-index__go {
  margin-top: auto;
  padding-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--teal);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-aside__inner {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  margin-bottom: 2rem;
}

.page-faq .faq-aside__label {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.page-faq .faq-aside__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.25rem;
  font-size: 0.9375rem;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-aside__link:hover,
.page-faq .faq-aside__link:focus-visible {
  color: var(--snow);
  border-bottom-color: var(--teal);
}

.page-faq .faq-aside__link .mono {
  font-size: 0.6875rem;
  color: var(--mist);
}

.page-faq .faq-aside__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-faq .faq-aside__back {
  display: inline-block;
  margin-top: 0.875rem;
  font-size: 0.8125rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-aside__back:hover {
  color: var(--snow);
}

.page-faq .faq-group {
  margin-bottom: 2.25rem;
  scroll-margin-top: 6rem;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.125rem, 2.6vw, 1.5rem);
  letter-spacing: -0.01em;
}

.page-faq .faq-group__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

.page-faq .faq-acc {
  margin-bottom: 0.625rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--faq-card);
  scroll-margin-top: 6rem;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-acc:hover {
  border-color: rgba(43, 179, 163, 0.45);
}

.page-faq .faq-acc[open] {
  border-color: rgba(43, 179, 163, 0.6);
  background: rgba(19, 41, 75, 0.82);
}

.page-faq .faq-acc:target {
  border-color: var(--yellow);
}

.page-faq .faq-acc__q {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.0625rem;
  font-size: 0.9875rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--snow);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-acc__q::marker {
  content: "";
}

.page-faq .faq-acc__mark {
  flex: none;
  width: 1.375rem;
  height: 1.375rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1;
  color: var(--teal);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-acc[open] .faq-acc__mark {
  transform: rotate(45deg);
  border-color: var(--teal);
}

.page-faq .faq-acc__body {
  padding: 0 1.0625rem 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-acc__body p {
  margin: 0 0 0.75rem;
}

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

.page-faq .faq-acc__body ol {
  margin: 0.5rem 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.4rem;
}

.page-faq .faq-acc__body .arrow-link {
  color: var(--teal);
}

/* ---------- 路径 ---------- */
.page-faq .faq-path {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-path__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

.page-faq .faq-path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-path__step {
  position: relative;
  padding: 0 0 1.75rem 2.75rem;
  margin-left: 0.8125rem;
  border-left: 1px solid var(--line);
}

.page-faq .faq-path__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .faq-path__node {
  position: absolute;
  left: -0.8125rem;
  top: 0;
  width: 1.625rem;
  height: 1.625rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 0.75rem;
  background: var(--night);
  border: 1px solid var(--line);
  color: var(--snow);
}

.page-faq .faq-path__step--1 .faq-path__node {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

.page-faq .faq-path__step--2 .faq-path__node {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--white);
}

.page-faq .faq-path__step--3 .faq-path__node {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--ink);
}

.page-faq .faq-path__step-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.45;
}

.page-faq .faq-path__step-text {
  margin: 0 0 0.625rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-path__step .arrow-link {
  font-size: 0.8125rem;
  color: var(--teal);
}

.page-faq .faq-path__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--night-2);
}

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

.page-faq .faq-path__cap {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 订阅步骤 ---------- */
.page-faq .faq-sub {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-sub__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

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

.page-faq .faq-sub__item {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.875rem;
  padding: 1rem 0 1.25rem;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-faq .faq-sub__num {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--yellow);
  padding-top: 0.25rem;
}

.page-faq .faq-sub__title {
  margin: 0 0 0.375rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.4;
}

.page-faq .faq-sub__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-sub__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--night-2);
}

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

.page-faq .faq-sub__cap {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-sub__foot {
  margin: 1.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-sub__foot .arrow-link {
  color: var(--teal);
}

/* ---------- 统计 ---------- */
.page-faq .faq-stat {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-stat__frame {
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(19, 41, 75, 0.88), rgba(11, 27, 51, 0.4));
}

.page-faq .faq-stat__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.375rem 1rem;
}

.page-faq .faq-stat__cell {
  padding-left: 0.875rem;
  border-left: 2px solid var(--line);
}

.page-faq .faq-stat__cell:nth-child(1) { border-left-color: var(--teal); }
.page-faq .faq-stat__cell:nth-child(2) { border-left-color: var(--yellow); }
.page-faq .faq-stat__cell:nth-child(3) { border-left-color: var(--red); }
.page-faq .faq-stat__cell:nth-child(4) { border-left-color: var(--green); }

.page-faq .faq-stat__num {
  display: block;
  font-size: clamp(1.75rem, 4.6vw, 2.5rem);
  font-weight: 600;
  line-height: 1;
  color: var(--snow);
}

.page-faq .faq-stat__unit {
  margin-left: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--mist);
}

.page-faq .faq-stat__label {
  margin: 0.5rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-faq .faq-stat__note {
  margin: 1.75rem 0 0;
  padding-top: 1.125rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-stat__note .arrow-link {
  color: var(--teal);
}

/* ---------- 自助与客服 ---------- */
.page-faq .faq-help {
  padding: 2.5rem 0 1rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

.page-faq .faq-help__list {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.875rem;
}

.page-faq .faq-help__item {
  padding-left: 0.25rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-help__item::marker {
  font-family: var(--font-mono);
  color: var(--teal);
}

.page-faq .faq-help__card {
  padding: 1.5rem 1.25rem 1.625rem;
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  background: rgba(19, 41, 75, 0.72);
}

.page-faq .faq-help__card-label {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-help__card-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1875rem;
  line-height: 1.4;
}

.page-faq .faq-help__card-text {
  margin: 0 0 1.125rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-help__contact {
  list-style: none;
  margin: 0 0 1.375rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-help__contact li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-faq .faq-help__key {
  color: var(--mist);
  font-size: 0.8125rem;
}

.page-faq .faq-help__val {
  color: var(--snow);
  word-break: break-word;
}

.page-faq .faq-help__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-path__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
  }

  .page-faq .faq-sub__grid {
    grid-template-columns: 1fr 0.85fr;
    gap: 2.5rem;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
  }

  .page-faq .faq-stat__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-aside__inner {
    position: sticky;
    top: 6rem;
    margin-bottom: 0;
    padding-right: 0.5rem;
  }

  .page-faq .faq-sub__figure {
    margin-top: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-acc__mark,
  .page-faq .faq-index__card,
  .page-faq .faq-acc {
    transition: none;
  }
}
<<<END>>>