.page-faq {
  --faq-line: 1px solid var(--grid-mint);
  background: var(--ink-deep);
  color: var(--text);
  padding-bottom: clamp(56px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 44px) 0 clamp(30px, 4vw, 52px);
  border-bottom: var(--faq-line);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(53, 240, 192, 0.14), transparent 62%),
    radial-gradient(90% 70% at 92% 10%, rgba(124, 107, 255, 0.12), transparent 60%),
    var(--ink-deep);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 74, 60, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 74, 60, 0.55) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 88%);
}
.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .crumb {
  margin-bottom: 20px;
}
.page-faq .crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.page-faq .crumb__item + .crumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid-mint);
}
.page-faq .crumb__link {
  color: var(--text-muted);
  text-decoration: none;
}
.page-faq .crumb__link:hover,
.page-faq .crumb__link:focus-visible {
  color: var(--fluoro);
  outline: none;
}
.page-faq .crumb__current {
  color: var(--text);
}

.page-faq .faq-title {
  margin: 10px 0 0;
  max-width: 18em;
  font-size: clamp(28px, 5.2vw, 50px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}
.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.page-faq .faq-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-pill);
  background: rgba(18, 58, 46, 0.62);
  color: var(--text-soft);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}
.page-faq .faq-index a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hover-cyan);
  transition: background 0.16s ease, box-shadow 0.16s ease;
}
.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: var(--fluoro);
  color: var(--fluoro);
  background: rgba(53, 240, 192, 0.1);
  transform: translateY(-1px);
  outline: none;
}
.page-faq .faq-index a:hover::before,
.page-faq .faq-index a:focus-visible::before {
  background: var(--fluoro);
  box-shadow: 0 0 0 4px rgba(53, 240, 192, 0.16);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
}
.page-faq .faq-stats__item {
  padding: 14px 18px;
  border: var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(11, 31, 26, 0.55);
}
.page-faq .faq-stats__item dt {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.page-faq .faq-stats__item dd {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--text-soft);
}
.page-faq .faq-stats__item .stat__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--fluoro);
  font-variant-numeric: tabular-nums;
  margin-right: 4px;
}

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding-top: clamp(28px, 5vw, 56px);
}

.page-faq .faq-toc {
  padding: 18px 16px;
  border: var(--faq-line);
  border-radius: var(--r-lg);
  background: rgba(18, 58, 46, 0.42);
}
.page-faq .faq-toc .eyebrow {
  margin: 0 0 12px;
}
.page-faq .faq-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px 9px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}
.page-faq .faq-toc__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--grid-mint);
  filter: brightness(1.9);
}
.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-left-color: var(--fluoro);
  color: var(--fluoro);
  background: rgba(53, 240, 192, 0.08);
  outline: none;
}
.page-faq .faq-toc__sub {
  display: none;
  margin: 2px 0 10px;
  padding: 0 0 0 14px;
  list-style: none;
  border-left: 1px dashed rgba(30, 74, 60, 0.9);
}
.page-faq .faq-toc__sub a {
  display: block;
  padding: 4px 0;
  color: var(--text-muted);
  font-size: 12.5px;
  line-height: 1.6;
  text-decoration: none;
}
.page-faq .faq-toc__sub a:hover,
.page-faq .faq-toc__sub a:focus-visible {
  color: var(--fluoro);
  outline: none;
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  margin-bottom: clamp(30px, 5vw, 56px);
  scroll-margin-top: 96px;
}
.page-faq .faq-chapter:last-child {
  margin-bottom: 0;
}
.page-faq .faq-chapter__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: var(--faq-line);
}
.page-faq .faq-chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: rgba(53, 240, 192, 0.34);
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-chapter__title {
  margin: 0;
  flex: 1 1 auto;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-faq .faq-chapter__head .badge {
  margin-left: auto;
}

/* 三步条 */
.page-faq .faq-path {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}
.page-faq .faq-path__step {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  padding: 12px 16px;
  border: 1px solid rgba(53, 240, 192, 0.28);
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, rgba(53, 240, 192, 0.12), rgba(18, 58, 46, 0.3));
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}
.page-faq .faq-path__idx {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--fluoro);
  color: var(--ink-on-light);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  flex: 0 0 auto;
}

/* 图 */
.page-faq .faq-figure {
  margin: 0 0 20px;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  margin-bottom: 12px;
  border: var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(18, 58, 46, 0.4);
  overflow: hidden;
  transition: border-color 0.18s ease, background 0.18s ease;
}
.page-faq .qa:hover {
  border-color: rgba(53, 240, 192, 0.4);
}
.page-faq .qa[open] {
  background: rgba(18, 58, 46, 0.78);
  border-color: rgba(53, 240, 192, 0.5);
}
.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--fluoro);
  outline-offset: -2px;
}
.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--fluoro);
  font-variant-numeric: tabular-nums;
  align-self: start;
  padding-top: 3px;
}
.page-faq .qa__title {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  font-weight: 700;
  color: var(--text);
}
.page-faq .qa__icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: var(--hover-cyan);
}
.page-faq .qa[open] .qa__icon {
  color: var(--fluoro);
}
.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: translateY(-50%);
}
.page-faq .qa__icon::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform 0.18s ease;
}
.page-faq .qa[open] .qa__icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .qa__a {
  padding: 0 16px 18px 16px;
}
.page-faq .qa__a p {
  margin: 0 0 10px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-soft);
}
.page-faq .qa__a p:last-of-type {
  margin-bottom: 12px;
}
.page-faq .qa__a a {
  color: var(--fluoro);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.page-faq .qa__a a:hover {
  color: var(--text);
}

.page-faq .qa-steps {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-faq .qa-steps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--r-sm);
  background: rgba(11, 31, 26, 0.6);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-soft);
}
.page-faq .qa-steps svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  margin-top: 5px;
  color: var(--fluoro);
}

.page-faq .qa__anchor {
  display: inline-block;
  padding: 5px 12px;
  border: 1px solid var(--grid-mint);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}
.page-faq .qa__anchor:hover,
.page-faq .qa__anchor:focus-visible {
  border-color: var(--fluoro);
  color: var(--fluoro);
  background: rgba(53, 240, 192, 0.1);
  outline: none;
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  padding: clamp(20px, 3.5vw, 32px);
  border-radius: var(--r-lg);
  border: 1px solid rgba(53, 240, 192, 0.35);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(255, 122, 61, 0.16), transparent 60%),
    var(--pitch-green);
}
.page-faq .faq-contact__lede {
  margin: 0 0 20px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-soft);
}
.page-faq .faq-contact__list {
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(30, 74, 60, 0.9);
  border-radius: var(--r-md);
  overflow: hidden;
}
.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  background: rgba(11, 31, 26, 0.72);
}
.page-faq .faq-contact__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}
.page-faq .faq-copy {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--fluoro);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-align: left;
  word-break: break-all;
  transition: color 0.16s ease;
}
.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  color: var(--amber);
  outline: none;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-contact__note {
  margin: 0 0 20px;
  max-width: 40em;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--text-muted);
}

/* ---------- 回到顶部 ---------- */
.page-faq .faq-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(53, 240, 192, 0.5);
  background: rgba(11, 31, 26, 0.92);
  color: var(--fluoro);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-decoration: none;
  box-shadow: var(--shadow-float);
  backdrop-filter: blur(6px);
  transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}
.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  background: var(--fluoro);
  color: var(--ink-on-light);
  transform: translateY(-2px);
  outline: none;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-path {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .faq-path__step {
    border-radius: var(--r-md);
    justify-content: flex-start;
  }
  .page-faq .faq-path__step:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -10px;
    top: 50%;
    width: 10px;
    height: 1px;
    background: rgba(53, 240, 192, 0.45);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(210px, 4fr) 7fr;
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }
  .page-faq .faq-toc__sub {
    display: block;
  }
  .page-faq .qa__q {
    padding: 16px 20px;
  }
  .page-faq .qa__title {
    font-size: 16.5px;
  }
  .page-faq .qa__a {
    padding: 0 20px 20px 20px;
  }
  .page-faq .qa__no {
    padding-top: 4px;
  }
}
<<<PAGE_CSS_END>>>