.page-faq {
  --faq-rail-w: 268px;
  --faq-accent: var(--cyan);
  position: relative;
  color: var(--paper);
  padding-bottom: clamp(56px, 9vw, 104px);
  overflow-x: hidden;
  background-color: var(--abyss);
  background-image:
    linear-gradient(rgba(36, 59, 107, .42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 59, 107, .42) 1px, transparent 1px),
    radial-gradient(1100px 520px at 10% -12%, rgba(45, 226, 230, .10), transparent 60%),
    radial-gradient(840px 460px at 94% 3%, rgba(110, 31, 58, .28), transparent 64%),
    linear-gradient(180deg, var(--abyss), var(--abyss-deep) 80%);
  background-size: 80px 80px, 80px 80px, 100% 100%, 100% 100%, 100% 100%;
  background-repeat: repeat, repeat, no-repeat, no-repeat, no-repeat;
}

.page-faq .breadcrumbs {
  padding-top: clamp(18px, 3.5vw, 32px);
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(20px, 4vw, 44px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.06;
  letter-spacing: -.012em;
  margin: 12px 0 0;
  color: var(--paper);
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.8;
  color: rgba(243, 247, 249, .8);
}

.page-faq .faq-searchbar {
  position: relative;
  margin-top: clamp(22px, 3.5vw, 32px);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background: linear-gradient(90deg, rgba(45, 226, 230, .12), rgba(11, 58, 69, .42) 48%, rgba(6, 26, 43, .18));
  box-shadow: inset 0 0 0 1px rgba(45, 226, 230, .06), 0 0 26px rgba(45, 226, 230, .12);
  overflow: hidden;
}

.page-faq .faq-searchbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .75;
}

.page-faq .faq-searchbar__icon {
  flex: 0 0 auto;
  color: var(--cyan);
  font-size: 17px;
  line-height: 1;
}

.page-faq .faq-searchbar__hint {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-chips a {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 37, 64, .62);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}

.page-faq .faq-chips a:hover,
.page-faq .faq-chips a:focus-visible {
  border-color: var(--line-strong);
  background: rgba(11, 58, 69, .85);
  color: var(--cyan);
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: rgba(10, 37, 64, .5);
}

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

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(40px, 6vw, 72px);
}

.page-faq .faq-rail {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(10, 37, 64, .55);
}

.page-faq .faq-rail__head {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-rail__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: rgba(243, 247, 249, .86);
  font-size: 15px;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-faq .faq-rail__list .mono {
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--line-strong);
  color: var(--cyan);
  background: rgba(11, 58, 69, .6);
}

.page-faq .faq-rail__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-rail__note .mono {
  color: var(--gold);
}

/* ---------- 问题分区 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-block {
  margin-bottom: clamp(36px, 6vw, 64px);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-block--account { --faq-accent: var(--cyan); }
.page-faq .faq-block--benefit { --faq-accent: var(--gold); }
.page-faq .faq-block--version { --faq-accent: #7C9BE0; }
.page-faq .faq-block--feedback { --faq-accent: var(--warn); }
.page-faq .faq-block--contact { --faq-accent: var(--ok); }

.page-faq .faq-block__head {
  border-left: 2px solid var(--faq-accent);
  padding-left: 16px;
}

.page-faq .faq-block__head h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.16;
  margin: 10px 0 0;
  color: var(--paper);
  max-width: 26ch;
}

.page-faq .faq-block__head .index-num {
  color: var(--faq-accent);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-list .accordion {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(6, 26, 43, .66);
  transition: border-color .22s ease, background .22s ease;
}

.page-faq .faq-list .accordion[open] {
  border-color: var(--faq-accent);
  background: rgba(11, 58, 69, .4);
}

.page-faq .accordion__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .accordion__summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--faq-accent);
}

.page-faq .accordion[open] > .accordion__summary::after {
  content: "−";
}

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

.page-faq .faq-q__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

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

.page-faq .accordion__body {
  padding: 0 18px 18px 46px;
}

.page-faq .accordion__body p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(243, 247, 249, .82);
}

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

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

.page-faq .accordion__body a:hover,
.page-faq .accordion__body a:focus-visible {
  color: var(--gold);
}

/* ---------- 反馈状态面板 ---------- */
.page-faq .faq-status {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-status__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(10, 37, 64, .78), rgba(6, 26, 43, .5));
}

.page-faq .faq-status__k {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-figure {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: rgba(10, 37, 64, .5);
}

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

/* ---------- 尾部行动区 ---------- */
.page-faq .faq-next {
  margin-top: clamp(26px, 4vw, 38px);
  padding: clamp(20px, 3.5vw, 30px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, rgba(36, 59, 107, .5), rgba(6, 26, 43, .7));
}

.page-faq .faq-next__lede {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(243, 247, 249, .86);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-status {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 128px);
    overflow-y: auto;
  }

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

  .page-faq .faq-rail__list a {
    width: 100%;
    white-space: normal;
    padding: 10px 12px;
  }

  .page-faq .faq-rail__list li {
    border-bottom: 1px solid var(--line-soft);
  }

  .page-faq .faq-rail__list li:last-child {
    border-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chips a,
  .page-faq .faq-rail__list a,
  .page-faq .faq-list .accordion {
    transition: none;
  }
}
<<<END>>>