.page-faq {
  --faq-gap: clamp(28px, 5vw, 56px);
  --faq-step-bg: rgba(var(--stand-rgb), .58);
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
  background:
    radial-gradient(120% 70% at 88% 0%, rgba(var(--night-rgb), .12), transparent 62%),
    radial-gradient(90% 60% at 0% 34%, rgba(var(--flame-rgb), .07), transparent 66%);
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__lead {
  min-width: 0;
}

.page-faq h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.2vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--light);
  text-wrap: balance;
}

.page-faq .faq-hero__lead .lede {
  max-width: 46ch;
  color: var(--silver);
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-fig,
.page-faq .faq-band {
  position: relative;
  margin: 0;
  border: var(--edge);
  background: var(--stand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-faq .faq-fig::before,
.page-faq .faq-band::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 58%;
  height: 3px;
  background: linear-gradient(90deg, var(--flame), rgba(var(--flame-rgb), 0));
  z-index: 2;
}

.page-faq .faq-fig img,
.page-faq .faq-band img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-fig__cap {
  padding: 12px 16px 14px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--silver);
  border-top: var(--edge);
}

.page-faq .faq-band {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-band img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-start,
.page-faq .faq-topics,
.page-faq .faq-help {
  margin-top: clamp(46px, 8vw, 96px);
}

.page-faq .faq-sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: var(--edge-strong);
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-faq .faq-sec-head__n {
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1;
  color: var(--flame);
  letter-spacing: .01em;
}

.page-faq .faq-sec-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--light);
}

.page-faq .faq-sec-head p {
  margin: 0;
  max-width: 54ch;
  color: var(--silver);
  font-size: .98rem;
  line-height: 1.75;
}

/* 三步开始 */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: none;
}

.page-faq .step {
  --step-c: var(--flame);
  position: relative;
  padding: 22px 20px 24px;
  background: var(--faq-step-bg);
  border: var(--edge);
  border-top: 2px solid var(--step-c);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .step:nth-child(2) {
  --step-c: var(--night);
}

.page-faq .step__n {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--step-c);
  letter-spacing: .04em;
}

.page-faq .step h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.16rem;
  letter-spacing: 0;
  color: var(--light);
}

.page-faq .step p {
  margin: 0 0 14px;
  color: var(--silver);
  font-size: .95rem;
  line-height: 1.72;
}

.page-faq .step__link {
  display: inline-block;
  font-size: .88rem;
  font-weight: 700;
  color: var(--linkblue);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--silver-rgb), .4);
  padding-bottom: 2px;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

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

/* 问答区 */
.page-faq .qa-shell {
  display: grid;
  gap: 22px;
}

.page-faq .qa-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 8px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.page-faq .qa-tab {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: var(--edge);
  border-radius: var(--pill);
  background: transparent;
  color: var(--silver);
  font-family: var(--font-body);
  font-size: .92rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: color .16s var(--ease), background-color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .qa-tab:hover {
  color: var(--light);
  border-color: rgba(var(--silver-rgb), .4);
}

.page-faq .qa-tab[aria-selected="true"] {
  background: var(--flame);
  border-color: var(--flame);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .qa-tab__n {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  opacity: .82;
}

.page-faq .qa-tab:focus-visible,
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--linkblue);
  outline-offset: 3px;
}

.page-faq .qa-panel {
  min-width: 0;
}

.page-faq .qa-panel__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: .01em;
  color: var(--light);
}

.page-faq .qa {
  position: relative;
  border-top: var(--edge);
  background: linear-gradient(90deg, rgba(var(--stand-rgb), .42), transparent 70%);
}

.page-faq .qa:last-child {
  border-bottom: var(--edge);
}

.page-faq .qa summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 42px 18px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--light);
  transition: color .16s var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--silver);
  transition: color .16s var(--ease);
}

.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--flame);
}

.page-faq .qa[open] summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  background: var(--flame);
}

.page-faq .qa summary:hover {
  color: var(--flame);
}

.page-faq .qa__n {
  flex: 0 0 auto;
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--silver);
}

.page-faq .qa[open] .qa__n {
  color: var(--flame);
}

.page-faq .qa__body {
  padding: 0 18px 20px 14px;
  color: var(--silver);
  font-size: .96rem;
  line-height: 1.78;
}

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

.page-faq .qa__body ol {
  list-style: none;
  margin: 10px 0 12px;
  padding: 0;
  counter-reset: qa-step;
}

.page-faq .qa__body ol li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 6px;
  counter-increment: qa-step;
}

.page-faq .qa__body ol li::before {
  content: counter(qa-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--night);
}

.page-faq .qa__next {
  margin: 12px 0 0;
}

.page-faq .qa__next a {
  display: inline-block;
  font-size: .9rem;
  font-weight: 700;
  color: var(--linkblue);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--silver-rgb), .38);
  padding-bottom: 2px;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

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

/* 底部反馈 */
.page-faq .faq-help__panel {
  display: grid;
  gap: 26px;
  padding: clamp(24px, 4vw, 42px);
  background:
    linear-gradient(135deg, rgba(var(--flame-rgb), .14), transparent 46%),
    linear-gradient(315deg, rgba(var(--night-rgb), .18), transparent 52%),
    var(--stand);
  border: var(--edge-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-faq .faq-help__text h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--light);
}

.page-faq .faq-help__text p:not(.kicker) {
  margin: 0;
  max-width: 52ch;
  color: var(--silver);
  font-size: .97rem;
  line-height: 1.78;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-faq .faq-help__actions .btn {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.page-faq .faq-help__note {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  line-height: 1.7;
  color: var(--silver);
}

@media (min-width: 720px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-hero__lead {
    padding-bottom: 8px;
  }

  .page-faq .faq-fig {
    transform: translateY(-10px);
  }

  .page-faq .qa-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .qa-nav {
    position: sticky;
    top: 108px;
    display: grid;
    gap: 4px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .qa-tab {
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid rgba(var(--silver-rgb), .18);
    border-radius: 0;
    padding: 13px 14px;
    white-space: normal;
    text-align: left;
    line-height: 1.45;
  }

  .page-faq .qa-tab[aria-selected="true"] {
    background: rgba(var(--flame-rgb), .12);
    border-left-color: var(--flame);
    color: var(--light);
  }

  .page-faq .qa-tab[aria-selected="true"] .qa-tab__n {
    color: var(--flame);
    opacity: 1;
  }

  .page-faq .qa summary {
    font-size: 1.04rem;
    padding-right: 56px;
  }

  .page-faq .qa__body {
    padding-right: 56px;
    max-width: 62ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step__link,
  .page-faq .qa-tab,
  .page-faq .qa summary,
  .page-faq .qa summary::after,
  .page-faq .qa__next a {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>