.page-faq {
  padding-inline: clamp(1rem, 4vw, 3rem);
  color: var(--paper);
  font-family: var(--font-body);
  background:
    radial-gradient(120% 70% at 88% -8%, rgba(228, 87, 46, .20), transparent 62%),
    radial-gradient(80% 55% at 0% 4%, rgba(91, 124, 153, .18), transparent 58%),
    var(--ink);
}

.page-faq > section {
  max-width: 1240px;
  margin-inline: auto;
  padding-block: clamp(1.8rem, 5vw, 3.4rem);
}

.page-faq h1 {
  margin: .55rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 3.3rem);
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .section-title {
  margin: .5rem 0 .6rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.15;
  letter-spacing: -.025em;
  color: var(--paper);
}

.page-faq .body-copy {
  margin: 0;
  font-size: clamp(.95rem, 1.6vw, 1.02rem);
  line-height: 1.75;
  color: rgba(245, 241, 232, .8);
  max-width: 62ch;
}

/* 首屏框景 */
.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.3rem, 4vw, 2.4rem);
  padding: clamp(1.2rem, 3.2vw, 2.4rem);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(21, 40, 61, .9), rgba(10, 20, 33, .94));
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-faq .faq-hero__grid::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--gold), var(--gold)) left top / 46px 1px no-repeat,
    linear-gradient(var(--gold), var(--gold)) left top / 1px 46px no-repeat,
    linear-gradient(var(--ember), var(--ember)) right bottom / 46px 1px no-repeat,
    linear-gradient(var(--ember), var(--ember)) right bottom / 1px 46px no-repeat;
}

.page-faq .faq-hero__copy .body-copy {
  margin-top: .9rem;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.35rem;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

/* 三步开始 */
.page-faq .faq-start {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-start__head {
  max-width: 64ch;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 1.15rem 1.1rem 1.35rem;
  background: linear-gradient(155deg, rgba(21, 40, 61, .96), rgba(10, 20, 33, .92));
  border-left: 2px solid var(--ember);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-faq .faq-step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-step h3 {
  margin: .5rem 0 .55rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.72;
  color: rgba(245, 241, 232, .76);
}

/* 问答主体 */
.page-faq .faq-body__head {
  max-width: 64ch;
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.3rem;
  margin-top: 1.3rem;
}

.page-faq .faq-rail__label {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-rail__list {
  list-style: none;
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .4rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-pill {
  display: inline-block;
  padding: .5rem .85rem;
  font-size: .84rem;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--line-strong);
  background: rgba(21, 40, 61, .72);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: background .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-pill:hover,
.page-faq .faq-pill:focus-visible {
  background: var(--ember);
  border-color: var(--ember-deep);
  color: var(--ink);
}

.page-faq .faq-group {
  margin-bottom: 2rem;
  scroll-margin-top: 6rem;
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 1.2rem;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 .85rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.12rem, 2.6vw, 1.38rem);
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-group__title::before {
  content: "";
  flex: none;
  width: .5rem;
  height: .5rem;
  background: var(--ember);
  transform: rotate(45deg);
}

.page-faq .faq-item {
  margin-bottom: .5rem;
  border: 1px solid var(--line);
  background: rgba(21, 40, 61, .55);
  transition: border-color .16s var(--ease), background .16s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 184, 75, .5);
  background: rgba(21, 40, 61, .92);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .8rem;
  padding: .9rem 1rem .9rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .96rem;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .2s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.2;
  color: var(--gold);
  transition: transform .18s var(--ease);
}

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

.page-faq .faq-item summary:hover {
  color: var(--gold);
}

.page-faq .faq-answer {
  padding: 0 1rem 1rem 1.15rem;
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(245, 241, 232, .8);
}

.page-faq .faq-answer a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-more {
  margin: 1rem 0 0;
  padding-left: .9rem;
  border-left: 2px solid var(--steel);
  font-size: .9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-more a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 移动端章节 */
.page-faq .faq-mobile__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

.page-faq .faq-phone {
  margin: 0;
  max-width: 300px;
}

.page-faq .faq-phone img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

/* 客服升级 */
.page-faq .faq-upgrade__panel {
  position: relative;
  padding: clamp(1.2rem, 3.5vw, 2.2rem);
  border: 1px solid rgba(242, 184, 75, .42);
  background: linear-gradient(142deg, rgba(228, 87, 46, .18), rgba(21, 40, 61, .94) 62%);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.page-faq .faq-upgrade__title {
  margin: .5rem 0 .6rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.18;
  letter-spacing: -.025em;
  color: var(--paper);
}

.page-faq .faq-upgrade__lead {
  margin: 0;
  max-width: 60ch;
  font-size: .95rem;
  line-height: 1.75;
  color: rgba(245, 241, 232, .82);
}

.page-faq .faq-upgrade__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
  margin: 1.2rem 0 1.4rem;
}

.page-faq .faq-upgrade__meta > div {
  padding-left: .75rem;
  border-left: 1px solid var(--line-strong);
}

.page-faq .faq-upgrade__meta dt {
  margin-bottom: .2rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-upgrade__meta dd {
  margin: 0;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-upgrade__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem 1.2rem;
}

.page-faq .faq-upgrade__link {
  font-size: .87rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .faq-upgrade__link:hover,
.page-faq .faq-upgrade__link:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

@media (min-width: 620px) {
  .page-faq .faq-upgrade__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 206px minmax(0, 1fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 6rem;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-mobile__grid {
    grid-template-columns: minmax(0, 1fr) 290px;
    align-items: start;
    gap: 1.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-pill,
  .page-faq .faq-item,
  .page-faq .faq-item summary::before,
  .page-faq .faq-item summary::after,
  .page-faq .faq-upgrade__link {
    transition: none;
  }
}
<<<END>>>