.page-faq {
  display: block;
  --faq-legacy: #7B5AD4;
  overflow-wrap: break-word;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background-image:
    radial-gradient(820px 380px at 8% -20%, rgba(124, 77, 255, .26), transparent 70%),
    radial-gradient(640px 340px at 92% -10%, rgba(34, 211, 238, .16), transparent 72%);
  background-repeat: no-repeat;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 30px;
  padding-block: clamp(20px, 4vw, 44px) clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  max-width: 20ch;
  line-height: 1.14;
  letter-spacing: -.01em;
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 20px;
}

.page-faq .faq-hero__meta span {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: rgba(34, 211, 238, .06);
  padding: 5px 10px;
}

/* ---------- 问题组速查 ---------- */
.page-faq .faq-jump {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 26, 56, .9), rgba(7, 12, 30, .9));
  box-shadow: var(--shadow-hard);
  padding: 16px 18px 18px;
}

.page-faq .faq-jump__k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.page-faq .faq-jump__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 8px;
  border-left: 2px solid transparent;
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease, background .16s ease;
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  border-left-color: var(--cyan);
  color: var(--cyan);
  background: rgba(34, 211, 238, .08);
}

.page-faq .faq-jump__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 34px;
}

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

/* ---------- 单个问题组 ---------- */
.page-faq .faq-group {
  --accent: var(--purple);
}

.page-faq .faq-group + .faq-group {
  margin-top: 40px;
  padding-top: 36px;
  border-top: 3px solid var(--line);
}

.page-faq .faq-group--access { --accent: var(--cyan); }
.page-faq .faq-group--signup { --accent: var(--purple); }
.page-faq .faq-group--legacy { --accent: var(--faq-legacy); }
.page-faq .faq-group--code   { --accent: var(--gold); }
.page-faq .faq-group--open   { --accent: var(--open-cyan); }

.page-faq .faq-group__head {
  position: relative;
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 76px;
  height: 3px;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent);
}

.page-faq .faq-group__no {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--accent);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 27px);
  line-height: 1.24;
  color: var(--ink);
}

.page-faq .faq-group__hint {
  margin: 0;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-q {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent, var(--purple));
  background: linear-gradient(180deg, rgba(16, 26, 56, .86), rgba(12, 20, 48, .86));
  transition: box-shadow .18s ease, border-color .18s ease;
}

.page-faq .faq-q + .faq-q {
  margin-top: 10px;
}

.page-faq .faq-q[open] {
  box-shadow: 0 0 0 1px rgba(124, 77, 255, .22), 0 18px 44px -30px rgba(124, 77, 255, .9);
}

.page-faq .faq-q__sum {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .faq-q__sum:hover {
  background: rgba(124, 77, 255, .08);
}

.page-faq .faq-q__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid var(--line);
  background: rgba(7, 12, 30, .7);
}

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

.page-faq .faq-q__sign::before { width: 10px; height: 2px; }

.page-faq .faq-q__sign::after {
  width: 2px;
  height: 10px;
  transition: opacity .18s ease;
}

.page-faq .faq-q[open] .faq-q__sign::after { opacity: 0; }

.page-faq .faq-q__body {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--line-soft);
  animation: faqDrop .2s ease-out;
}

.page-faq .faq-q__body > p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--muted);
}

@keyframes faqDrop {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  counter-reset: step;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-steps > li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  line-height: 20px;
  height: 22px;
  text-align: center;
  color: var(--accent, var(--cyan));
  border: 1px solid var(--line);
  background: rgba(7, 12, 30, .68);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 18px 0 0;
  border: 1px solid var(--line);
  background: var(--panel-2);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-figure--legacy {
  box-shadow: 0 0 0 1px rgba(123, 90, 212, .38), 0 20px 48px -30px rgba(123, 90, 212, .95);
}

.page-faq .faq-figure--open {
  box-shadow: 0 0 0 1px rgba(53, 224, 255, .32), 0 20px 48px -30px rgba(53, 224, 255, .9);
}

/* ---------- 右栏客服柱 ---------- */
.page-faq .faq-rail {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-rail__card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--purple);
  background: linear-gradient(180deg, rgba(16, 26, 56, .94), rgba(7, 12, 30, .94));
  box-shadow: 0 0 0 1px rgba(124, 77, 255, .32), 0 22px 52px -32px rgba(124, 77, 255, .95);
  padding: 18px 18px 20px;
}

.page-faq .faq-rail__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-rail__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.62;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-rail__list li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 8px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-rail__list li::before {
  content: "▸";
  font-size: 11px;
  line-height: 1.7;
  color: var(--gold);
}

.page-faq .faq-rail__mail {
  display: block;
  padding: 9px 11px;
  border: 1px dashed rgba(247, 193, 75, .5);
  background: rgba(247, 193, 75, .07);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--gold);
  word-break: break-all;
}

.page-faq .faq-rail__meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-next {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-next__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-next__list a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--panel-2);
  color: var(--ink);
  font-size: 15px;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.page-faq .faq-next__list a:hover,
.page-faq .faq-next__list a:focus-visible {
  transform: translateX(6px);
  border-left-color: var(--purple);
  box-shadow: 0 0 0 1px rgba(124, 77, 255, .42), 0 18px 42px -28px rgba(124, 77, 255, .95);
}

.page-faq .faq-next__list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}

.page-faq .faq-next__list span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-jump__list {
    grid-template-columns: 1fr;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 44px;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-faq .faq-group__no {
    grid-column: 1;
  }

  .page-faq .faq-group__title {
    grid-column: 1;
  }

  .page-faq .faq-group__hint {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__body { animation: none; }
  .page-faq .faq-next__list a:hover,
  .page-faq .faq-next__list a:focus-visible { transform: none; }
}
<<<END>>>