.page-faq {
  --faq-rail: 138px;
  --faq-gap: clamp(22px, 3vw, 44px);
  background: var(--ink);
  color: var(--paper);
}

.page-faq .crumbs {
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--hair);
  background-image:
    linear-gradient(180deg, rgba(13, 43, 34, 0.66), rgba(7, 21, 28, 0) 72%),
    repeating-linear-gradient(90deg, var(--hair-soft) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--hair-soft) 0 1px, transparent 1px 72px);
}

.page-faq .faq-hero__split {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
}

.page-faq .faq-hero h1 {
  margin: 0.16em 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-faq .faq-hero__intro {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.78;
  color: rgba(242, 245, 234, 0.82);
}

.page-faq .faq-hero__index {
  list-style: none;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-faq .faq-hero__index li {
  background: var(--ink);
}

.page-faq .faq-hero__index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 14px;
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  border-left: 2px solid transparent;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-hero__index a:hover,
.page-faq .faq-hero__index a:focus-visible {
  background: var(--ink-2);
  border-left-color: var(--signal);
  color: var(--signal);
}

.page-faq .faq-idx__n {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--line);
}

.page-faq .faq-hero__fig {
  margin: 0;
}

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

/* 主体两栏 */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(30px, 4.5vw, 64px);
  padding-bottom: clamp(44px, 6vw, 88px);
}

.page-faq .faq-rail__inner {
  border-top: 1px solid var(--hair);
  padding-top: 12px;
}

.page-faq .faq-rail__cap {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--hair);
  color: var(--muted);
  text-decoration: none;
  font-size: 12.5px;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--signal);
  border-color: var(--line);
  background: var(--ink-2);
}

.page-faq .faq-rail__num {
  font-family: var(--font-num);
  font-size: 10.5px;
  color: var(--line);
}

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

/* 问题分组 */
.page-faq .faq-sec {
  padding-top: clamp(18px, 2.6vw, 30px);
  margin-bottom: clamp(38px, 5vw, 66px);
  border-top: 1px solid var(--hair);
  scroll-margin-top: calc(var(--head-h) + 18px);
  transition: border-color 0.2s ease;
}

.page-faq .faq-sec:target {
  border-top-color: var(--signal);
}

.page-faq .faq-sec:target .faq-sec__num {
  color: var(--signal);
  opacity: 1;
}

.page-faq .faq-sec--tint {
  background: linear-gradient(180deg, rgba(31, 107, 74, 0.22), rgba(31, 107, 74, 0) 78%);
  padding: clamp(18px, 2.6vw, 30px) clamp(14px, 2vw, 24px) clamp(14px, 2vw, 20px);
}

.page-faq .faq-sec--deep {
  background: var(--depth);
  border-top-color: var(--signal);
  padding: clamp(20px, 3vw, 34px) clamp(16px, 2.4vw, 30px) clamp(22px, 3vw, 32px);
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 14px;
  align-items: baseline;
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-faq .faq-sec__num {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1;
  color: var(--line);
  opacity: 0.45;
}

.page-faq .faq-sec__head h2 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.3vw, 36px);
  line-height: 1.14;
  letter-spacing: 0.005em;
  text-wrap: balance;
}

.page-faq .faq-sec__sub {
  grid-column: 2;
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* 问答手风琴 */
.page-faq .faq-q {
  border: 1px solid var(--hair);
  border-left: 3px solid rgba(99, 199, 125, 0.3);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-q[open] {
  border-left-color: var(--signal);
  background: rgba(13, 43, 34, 0.85);
}

.page-faq .faq-q__sum {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  transition: color 0.18s ease;
}

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

.page-faq .faq-q__sum:hover,
.page-faq .faq-q__sum:focus-visible {
  color: var(--signal);
}

.page-faq .faq-q__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 16px;
  color: var(--line);
  flex: none;
}

.page-faq .faq-q[open] .faq-q__sum::after {
  content: "–";
  color: var(--signal);
}

.page-faq .faq-q__tag {
  flex: none;
  padding: 3px 7px;
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--line);
}

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

.page-faq .faq-q__body {
  padding: 0 15px 16px;
  border-top: 1px dashed var(--hair);
  margin-top: 0;
}

.page-faq .faq-q__body > *:first-child {
  margin-top: 14px;
}

.page-faq .faq-p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(242, 245, 234, 0.86);
}

/* 坐标步骤 */
.page-faq .faq-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 18px 30px;
  margin-left: 9px;
  border-left: 1px solid var(--hair);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .faq-step__num {
  position: absolute;
  left: -9px;
  top: 2px;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  background: var(--pitch);
  color: var(--paper);
  font-family: var(--font-num);
  font-size: 10px;
  line-height: 1;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(242, 245, 234, 0.86);
}

.page-faq .faq-note {
  margin: 16px 0 0;
  padding: 10px 13px;
  border-left: 2px solid var(--line);
  background: rgba(99, 199, 125, 0.09);
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(242, 245, 234, 0.74);
}

/* 表格 */
.page-faq .faq-tablewrap {
  margin-top: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.65;
}

.page-faq .faq-table__cap {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  text-align: left;
  vertical-align: top;
  padding: 11px 12px;
  border-bottom: 1px solid var(--hair-soft);
}

.page-faq .faq-table thead th {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--line);
  border-bottom-color: var(--hair);
}

.page-faq .faq-table tbody th {
  width: 22%;
  font-weight: 500;
  color: var(--muted);
  font-size: 13px;
}

.page-faq .faq-table td {
  color: rgba(242, 245, 234, 0.88);
}

.page-faq .faq-table--compact {
  min-width: 340px;
}

.page-faq .faq-table--compact tbody th {
  width: 38%;
}

/* 色标图例 */
.page-faq .faq-legend__block {
  margin-bottom: 22px;
}

.page-faq .faq-legend__cap {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.page-faq .faq-legend li {
  position: relative;
  height: 42px;
  display: grid;
  place-items: end center;
  padding-bottom: 4px;
  border: 1px solid var(--hair);
  font-family: var(--font-num);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: rgba(242, 245, 234, 0.82);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-legend li:hover {
  transform: translateY(-3px);
  border-color: var(--signal);
}

.page-faq .faq-legend li:nth-child(1) { background: var(--pitch); }
.page-faq .faq-legend li:nth-child(2) { background: rgba(31, 107, 74, 0.52); }
.page-faq .faq-legend li:nth-child(3) { background: var(--line); color: var(--ink); }
.page-faq .faq-legend li:nth-child(4) { background: rgba(99, 199, 125, 0.42); color: var(--ink); }
.page-faq .faq-legend li:nth-child(5) { background: var(--ink-2); }
.page-faq .faq-legend li:nth-child(6) { background: var(--depth); }
.page-faq .faq-legend li:nth-child(7) { background: rgba(143, 163, 155, 0.68); color: var(--ink); }
.page-faq .faq-legend li:nth-child(8) { background: rgba(143, 163, 155, 0.3); }
.page-faq .faq-legend li:nth-child(9) { background: var(--sheet); color: var(--ink); }
.page-faq .faq-legend li:nth-child(10) { background: var(--signal); color: var(--ink); }
.page-faq .faq-legend li:nth-child(11) { background: var(--alert); color: var(--ink); }
.page-faq .faq-legend li:nth-child(12) { background: var(--ink); }

.page-faq .faq-legend__note {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--muted);
}

/* 同步图 */
.page-faq .faq-fig {
  margin: 0 0 20px;
}

/* 求助准备 */
.page-faq .faq-support__grid {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-faq .faq-support__grid li {
  background: rgba(7, 21, 28, 0.9);
  padding: 16px;
}

.page-faq .faq-support__num {
  display: block;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.page-faq .faq-support__grid h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .faq-support__grid p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-support {
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--hair);
  padding-top: 20px;
}

.page-faq .faq-support__cell {
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.page-faq .faq-support__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-support__mail {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(15px, 2vw, 20px);
  letter-spacing: 0.01em;
  color: var(--signal);
  word-break: break-all;
  user-select: all;
}

.page-faq .faq-support__mail--plain {
  color: var(--paper);
}

.page-faq .faq-support__meta {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-support__cta {
  justify-self: start;
  margin-top: 4px;
}

/* 后续路径 */
.page-faq .faq-next {
  border-top: 1px solid var(--hair);
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-next h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.16;
}

.page-faq .faq-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-next__link {
  display: grid;
  gap: 5px;
  padding: 15px 16px;
  border: 1px solid var(--hair);
  text-decoration: none;
  color: var(--paper);
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-next__link:hover,
.page-faq .faq-next__link:focus-visible {
  background: var(--ink-2);
  border-color: var(--line);
  transform: translateX(3px);
}

.page-faq .faq-next__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .faq-next__link:hover .faq-next__title,
.page-faq .faq-next__link:focus-visible .faq-next__title {
  color: var(--signal);
}

.page-faq .faq-next__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 断点 */
@media (min-width: 640px) {
  .page-faq .faq-hero__index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-legend {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

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

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

  .page-faq .faq-support__cta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__split {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
  }

  .page-faq .faq-hero__index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: calc(var(--head-h) + 24px);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    border-color: transparent;
    border-left: 2px solid rgba(99, 199, 125, 0.22);
    padding: 9px 10px;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--signal);
    background: transparent;
  }

  .page-faq .faq-sec--tint,
  .page-faq .faq-sec--deep {
    padding-left: clamp(20px, 2.6vw, 32px);
    padding-right: clamp(20px, 2.6vw, 32px);
  }

  .page-faq .faq-q__sum {
    padding: 16px 18px;
  }

  .page-faq .faq-q__body {
    padding: 0 18px 20px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__split {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  }

  .page-faq .faq-legend {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-support__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-legend li,
  .page-faq .faq-next__link,
  .page-faq .faq-hero__index a,
  .page-faq .faq-rail__link,
  .page-faq .faq-q {
    transition: none;
  }

  .page-faq .faq-legend li:hover,
  .page-faq .faq-next__link:hover,
  .page-faq .faq-next__link:focus-visible {
    transform: none;
  }
}
<<<END>>>