/* ============ 常见问题页 ============ */
.page-faq {
  background:
    radial-gradient(900px 480px at 88% -8%, rgba(138, 123, 255, .10), transparent 62%),
    radial-gradient(680px 420px at 4% 32%, rgba(60, 242, 210, .06), transparent 66%),
    var(--c-deep);
  color: var(--c-mute);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 34px 0 32px;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(30, 59, 52, .55) 1px, transparent 1px);
  background-size: 76px 100%;
  opacity: .45;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 78%);
  mask-image: linear-gradient(180deg, #000, transparent 78%);
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-anno);
}

.page-faq .crumbs a {
  color: var(--c-cyan);
  text-decoration: none;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  text-decoration: underline;
}

.page-faq .crumbs__here {
  color: var(--c-anno);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--c-white);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-mute);
}

.page-faq .faq-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-faq .faq-meta li {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 13px 14px;
  background: var(--c-panel-2);
}

.page-faq .faq-meta__k {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-anno);
}

.page-faq .faq-meta__v {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  padding-top: 4px;
  padding-bottom: 56px;
}

/* 分类索引：移动端为横向条 */
.page-faq .faq-rail {
  padding-top: 22px;
}

.page-faq .faq-rail__cap {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-anno);
  text-transform: uppercase;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 14px;
  list-style: none;
  overflow-x: auto;
  border-bottom: 1px solid var(--c-line);
  scrollbar-width: none;
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--c-line);
  background: var(--c-panel-2);
  color: var(--c-mute);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-cyan);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--c-white);
  border-color: var(--c-cyan);
  background: rgba(60, 242, 210, .07);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 34px 0 6px;
  scroll-margin-top: 20px;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-sec__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-amber);
}

.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 28px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-white);
  transition: color .24s var(--ease);
}

.page-faq .faq-sec:target .faq-sec__title {
  color: var(--c-cyan);
}

.page-faq .faq-sec__note {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-anno);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
}

.page-faq .qa {
  border-bottom: 1px solid var(--c-line);
  background: transparent;
  transition: background .24s var(--ease);
}

.page-faq .qa[open] {
  background: linear-gradient(180deg, rgba(60, 242, 210, .055), rgba(60, 242, 210, 0) 58%);
}

.page-faq .qa::details-content {
  block-size: 0;
  overflow: hidden;
  transition: block-size .3s var(--ease), content-visibility .3s allow-discrete;
}

.page-faq .qa[open]::details-content {
  block-size: auto;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 3px minmax(0, 1fr) 17px;
  align-items: start;
  gap: 10px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--c-white);
  transition: color .2s var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--c-cyan);
}

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

.page-faq .qa__tick {
  width: 3px;
  align-self: stretch;
  min-height: 18px;
  background: var(--c-line);
  transition: background .24s var(--ease);
}

.page-faq .qa[open] .qa__tick {
  background: var(--c-amber);
}

.page-faq .qa__text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-faq .qa__sign {
  position: relative;
  width: 17px;
  height: 17px;
  margin-top: 5px;
  border: 1px solid var(--c-line);
  transition: border-color .24s var(--ease);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
}

.page-faq .qa__sign::before {
  inset: 50% 3px auto 3px;
  height: 1px;
  background: var(--c-cyan);
  transform: translateY(-50%);
}

.page-faq .qa__sign::after {
  inset: 3px auto 3px 50%;
  width: 1px;
  background: var(--c-cyan);
  transform: translateX(-50%);
  transition: opacity .2s var(--ease);
}

.page-faq .qa[open] .qa__sign {
  border-color: var(--c-cyan);
}

.page-faq .qa[open] .qa__sign::after {
  opacity: 0;
}

/* 答案区 */
.page-faq .qa__a {
  padding: 0 2px 22px 25px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mute);
}

.page-faq .qa__a p {
  margin: 0 0 12px;
  overflow-wrap: anywhere;
}

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

.page-faq .qa__verdict {
  padding-left: 12px;
  border-left: 2px solid var(--c-amber);
  color: var(--c-white);
  font-weight: 600;
}

.page-faq .qa__steps {
  counter-reset: faqstep;
  display: grid;
  gap: 11px;
  margin: 14px 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps li {
  position: relative;
  min-height: 22px;
  padding-left: 38px;
}

.page-faq .qa__steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding: 3px 5px;
  border: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--c-cyan);
  background: var(--c-panel-2);
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  background: var(--c-panel-2);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--c-anno);
}

/* ---------- 结尾通道 ---------- */
.page-faq .faq-next {
  padding: 42px 0 56px;
  border-top: 1px solid var(--c-line);
  background: linear-gradient(180deg, var(--c-panel-2), rgba(10, 33, 28, 0) 85%);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: 22px;
}

.page-faq .faq-next__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 28px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-next__lead {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mute);
  overflow-wrap: anywhere;
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding: 48px 0 40px;
  }

  .page-faq .qa__q {
    font-size: 16px;
    padding: 20px 2px;
  }

  .page-faq .qa__a {
    padding-bottom: 26px;
    font-size: 15px;
  }

  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding-top: 10px;
    padding-bottom: 72px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 36px;
    padding-top: 34px;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-faq .faq-rail__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-rail__link {
    width: 100%;
    gap: 12px;
    padding: 11px 0 11px 14px;
    border: 0;
    border-left: 2px solid var(--c-line);
    background: transparent;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: rgba(60, 242, 210, .05);
    border-left-color: var(--c-cyan);
  }

  .page-faq .faq-sec {
    padding-top: 30px;
  }

  .page-faq .faq-body > .faq-sec:first-child {
    padding-top: 32px;
  }

  .page-faq .faq-figure {
    max-width: 900px;
  }

  .page-faq .faq-next {
    padding: 56px 0 76px;
  }
}
<<<END>>>