.page-faq {
  --faq-line: rgba(175, 195, 206, .18);
  --faq-line-strong: rgba(175, 195, 206, .36);
  --faq-pad: clamp(44px, 7vw, 92px);
  --faq-num: 30px;
  background: var(--ink);
  color: var(--cream);
  padding-top: clamp(88px, 12vw, 136px);
  overflow-x: hidden;
}

@media (min-width: 700px) {
  .page-faq { --faq-num: 42px; }
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -60px -60vw 0;
  z-index: -2;
  background:
    linear-gradient(118deg, rgba(54, 241, 205, .12), transparent 46%),
    linear-gradient(305deg, rgba(255, 138, 61, .12), transparent 42%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(90deg, var(--faq-line) 0 1px, transparent 1px 92px);
  opacity: .5;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-faq .crumb {
  margin-bottom: clamp(26px, 4vw, 42px);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .crumb a { color: var(--mist); text-decoration: none; }
.page-faq .crumb a:hover { color: var(--cyan); }

.page-faq .faq-title {
  margin: 14px 0 20px;
  max-width: 24ch;
  font-family: var(--font-head);
  font-weight: 200;
  font-size: clamp(2.05rem, 5.6vw, 4.1rem);
  line-height: 1.07;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-title em {
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-lede {
  max-width: 58ch;
  color: var(--mist-70);
  font-size: clamp(.98rem, 1.5vw, 1.06rem);
  line-height: 1.9;
}

.page-faq .faq-jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-jump {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 17px;
  border: 1px solid var(--faq-line-strong);
  border-radius: 999px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  transition: border-color .25s ease, color .25s ease, background-color .25s ease;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  border-color: var(--cyan);
  color: var(--cream);
  background: rgba(54, 241, 205, .08);
}

.page-faq .faq-jump-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: .1em;
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  background: var(--ink-2);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  padding-block: var(--faq-pad);
}

.page-faq .faq-steps-inner {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

@media (min-width: 920px) {
  .page-faq .faq-steps-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

.page-faq .faq-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-kicker--dark { color: var(--clay); }

.page-faq .faq-h2 {
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.4rem, 3vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-h2--dark { color: var(--ink); }

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.page-faq .step-item {
  counter-increment: step;
  display: grid;
  grid-template-columns: var(--faq-num) minmax(0, 1fr);
  column-gap: 14px;
  padding: 20px 0;
  border-top: 1px dashed var(--faq-line-strong);
}

.page-faq .step-item:last-child { border-bottom: 1px dashed var(--faq-line-strong); }

.page-faq .step-item::before {
  content: "0" counter(step);
  grid-row: 1 / span 3;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
  padding-top: 3px;
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(1rem, 1.7vw, 1.14rem);
  line-height: 1.5;
  color: var(--cream);
}

.page-faq .step-item p {
  margin: 0 0 10px;
  color: var(--mist-70);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .step-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 241, 205, .4);
  padding-bottom: 2px;
}

.page-faq .step-link:hover { border-bottom-color: var(--cyan); }

.page-faq .faq-steps-figure img {
  width: 100%;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-m);
}

.page-faq .faq-steps-figure .media__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body { padding-block: var(--faq-pad); }

.page-faq .faq-layout {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 310px) minmax(0, 1fr);
    gap: clamp(44px, 5vw, 84px);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: clamp(112px, 13vw, 150px);
  }
}

.page-faq .faq-index {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-index-figure { margin: 0; }

.page-faq .faq-index-figure img {
  width: 100%;
  border-radius: var(--r-m);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--faq-line);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease, padding-left .2s ease, background-color .2s ease;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--cream);
  padding-left: 10px;
  background: rgba(54, 241, 205, .06);
}

.page-faq .idx-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .idx-caret {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--slate);
}

.page-faq .faq-index-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist-70);
}

.page-faq .faq-list { counter-reset: q; }

.page-faq .faq-group { scroll-margin-top: clamp(104px, 13vw, 148px); }
.page-faq .faq-group + .faq-group { margin-top: clamp(42px, 6vw, 76px); }

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--faq-line-strong);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-group-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-item {
  counter-increment: q;
  border-bottom: 1px solid var(--faq-line);
  transition: background-color .25s ease;
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(54, 241, 205, .07), transparent 72%);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: var(--faq-num) minmax(0, 1fr) 24px;
  column-gap: 12px;
  align-items: start;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::before {
  content: counter(q, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  padding-top: 5px;
}

.page-faq .faq-q-text {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(.97rem, 1.5vw, 1.06rem);
  line-height: 1.6;
  color: var(--cream);
  transition: color .2s ease;
}

.page-faq .faq-q:hover .faq-q-text { color: var(--cyan); }

.page-faq .faq-q-text .tag {
  margin-left: 8px;
  vertical-align: middle;
  font-size: 11px;
  letter-spacing: .04em;
}

.page-faq .faq-toggle {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--faq-line-strong);
  border-radius: 50%;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::before { width: 9px; height: 1px; }
.page-faq .faq-toggle::after { width: 1px; height: 9px; transition: transform .22s ease; }

.page-faq .faq-item[open] .faq-toggle::after { transform: translate(-50%, -50%) scaleY(0); }
.page-faq .faq-item[open] .faq-toggle { border-color: rgba(54, 241, 205, .55); }

.page-faq .faq-a {
  padding: 0 8px 24px calc(var(--faq-num) + 16px);
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist-70);
}

.page-faq .faq-a p { margin: 0 0 10px; }
.page-faq .faq-a p:last-child { margin-bottom: 0; }

.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 241, 205, .4);
}

.page-faq .faq-a a:hover { border-bottom-color: var(--cyan); }

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  background: var(--mineral);
  color: var(--ink);
  padding-block: var(--faq-pad);
}

.page-faq .faq-help-inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

@media (min-width: 900px) {
  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
  .page-faq .faq-top { grid-column: 1 / -1; }
}

.page-faq .faq-help-lede {
  margin: 0 0 16px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(10, 24, 38, .78);
}

.page-faq .faq-help-note {
  margin: 0 0 24px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(10, 24, 38, .62);
}

.page-faq .faq-help-note a {
  color: #0d5a4f;
  text-decoration: none;
  border-bottom: 1px solid rgba(13, 90, 79, .35);
}

.page-faq .faq-help-note a:hover { border-bottom-color: #0d5a4f; }

.page-faq .faq-help-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-size: 14px;
  text-decoration: none;
  transition: background-color .25s ease, transform .25s ease;
}

.page-faq .faq-help-cta:hover {
  background: var(--ink-2);
  transform: translateX(3px);
}

.page-faq .faq-contact {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(10, 24, 38, .2);
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact li {
  display: grid;
  gap: 5px;
}

.page-faq .faq-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-faq .faq-contact-val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-top {
  margin: 0;
  padding-top: 8px;
}

.page-faq .faq-top a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
  text-decoration: none;
}

.page-faq .faq-top a:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<END>>>