.page-faq {
  --faq-gap: clamp(24px, 4vw, 44px);
  --faq-pad: clamp(48px, 7vw, 92px);
  --faq-hair: 1px solid var(--line);
  --faq-body-text: #c8d5e2;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: var(--faq-pad);
  overflow-x: clip;
}

.page-faq .breadcrumbs {
  padding-top: 16px;
  font-size: 13px;
}

.page-faq .faq-paths,
.page-faq .faq-group {
  scroll-margin-top: 100px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 58px) 0 clamp(28px, 4.5vw, 52px);
  border-bottom: var(--bw) solid var(--line);
  background:
    radial-gradient(115% 85% at 88% 0%, rgba(232, 69, 43, 0.2), transparent 56%),
    radial-gradient(90% 80% at 4% 100%, rgba(47, 216, 230, 0.13), transparent 62%);
}

.page-faq .faq-hero__kicker {
  margin: 0;
  color: var(--mist);
  text-transform: none;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 6.6vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 17em;
}

.page-faq .faq-hero__mark {
  color: var(--signal);
  border-bottom: 4px solid var(--signal);
  padding-bottom: 2px;
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 42em;
  color: var(--faq-body-text);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 三条路径 ---------- */
.page-faq .faq-paths {
  padding-top: var(--faq-pad);
}

.page-faq .faq-paths__figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: var(--bw) solid var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-faq .faq-paths__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-paths__head h2 {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-paths__head .annot {
  flex: 1 1 100%;
  margin: 0;
}

.page-faq .faq-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 24px);
}

.page-faq .faq-path {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--ink-2);
  border: var(--bw) solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: clamp(18px, 2.6vw, 26px);
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-path:hover,
.page-faq .faq-path:focus-within {
  transform: translate(-2px, -2px);
  border-color: var(--signal);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-path__num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-faq .faq-path__title {
  margin: 8px 0 6px;
  font-size: clamp(19px, 2.4vw, 22px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--paper);
}

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

.page-faq .faq-steps {
  counter-reset: step;
  list-style: none;
  margin: 16px 0 20px;
  padding: 0;
}

.page-faq .faq-step {
  counter-increment: step;
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 10px;
  padding: 11px 0 11px 30px;
  border-top: var(--faq-hair);
  font-size: 14px;
  line-height: 1.65;
  color: var(--faq-body-text);
}

.page-faq .faq-step:last-child {
  border-bottom: var(--faq-hair);
}

.page-faq .faq-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--arc);
  letter-spacing: 0.04em;
}

.page-faq .faq-step__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gold);
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .faq-path:hover .faq-step__time,
.page-faq .faq-path:focus-within .faq-step__time {
  opacity: 1;
  transform: none;
}

@media (hover: none) {
  .page-faq .faq-step__time {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-path__link {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: var(--faq-pad);
}

.page-faq .faq-index {
  border: var(--bw) solid var(--line);
  background: var(--ink-2);
  padding: 16px 16px 18px;
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  color: var(--mist);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--faq-hair);
}

.page-faq .faq-index__list li {
  border-bottom: var(--faq-hair);
}

.page-faq .faq-index__link {
  display: block;
  min-height: 44px;
  padding: 12px 6px 12px 8px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  box-shadow: inset 0 0 0 0 var(--signal);
  transition: color 160ms var(--ease), box-shadow 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible,
.page-faq .faq-index__link[aria-current="true"] {
  color: var(--paper);
  padding-left: 14px;
  box-shadow: inset 3px 0 0 var(--signal);
}

.page-faq .faq-index__ask {
  margin-top: 18px;
  padding-top: 16px;
  border-top: var(--faq-hair);
}

.page-faq .faq-index__ask p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-index__btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 6vw, 68px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 12px;
  border-bottom: var(--bw) solid var(--line);
  margin-bottom: clamp(16px, 2.5vw, 22px);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__head .annot {
  flex: 1 1 100%;
  margin: 0;
}

.page-faq .faq-item {
  background: var(--ink-2);
  border: var(--bw) solid var(--line);
  border-left: 3px solid var(--signal);
  box-shadow: var(--shadow-soft);
  margin-bottom: 14px;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item[open] {
  border-left-color: var(--arc);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  transition: background-color 160ms var(--ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.1;
  color: var(--signal);
  transition: color 200ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--arc);
}

.page-faq .faq-item__q:hover {
  background: rgba(74, 92, 116, 0.16);
}

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

.page-faq .faq-item__a {
  padding: 2px 18px 18px;
  animation: faq-slide-in 200ms var(--ease);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-body-text);
}

.page-faq .faq-item__a p:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: var(--arc);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 216, 230, 0.45);
}

.page-faq .faq-item__a a:hover {
  border-bottom-color: var(--arc);
}

.page-faq .faq-item__more {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-item__more:hover,
.page-faq .faq-item__more:focus-visible {
  color: var(--arc);
  border-bottom-color: var(--arc);
}

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

/* ---------- 安装侧图 ---------- */
.page-faq .faq-figure {
  display: grid;
  gap: 12px;
  margin: 6px 0 18px;
  padding: 12px;
  border: var(--bw) solid var(--line);
  background: var(--ink-3);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-faq .faq-figure__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-figure__body .annot {
  margin-bottom: 6px;
  color: var(--mist);
}

/* ---------- 定义表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: 10px;
  border: var(--bw) solid var(--line);
  background: var(--ink-2);
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table caption {
  padding: 12px 14px 4px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.page-faq .faq-table thead th {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--mist);
  border-bottom: var(--bw) solid var(--line);
}

.page-faq .faq-table tbody th {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--arc);
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  color: var(--faq-body-text);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(74, 92, 116, 0.18);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 收尾面板 ---------- */
.page-faq .faq-close {
  display: grid;
  gap: 20px;
  margin-top: var(--faq-pad);
  padding: clamp(20px, 4vw, 40px);
  border: var(--bw) solid var(--signal);
  background:
    linear-gradient(135deg, rgba(232, 69, 43, 0.16), rgba(47, 216, 230, 0.09) 70%, transparent);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-close h2 {
  margin: 8px 0 12px;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-faq .faq-close__text p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

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

@media (min-width: 700px) {
  .page-faq .faq-figure {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-paths__grid {
    grid-template-columns: 1.15fr 1fr 0.95fr;
    align-items: start;
  }

  .page-faq .faq-path:nth-child(2) {
    margin-top: 26px;
  }

  .page-faq .faq-path:nth-child(3) {
    margin-top: 54px;
  }

  .page-faq .faq-close {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-faq .faq-close__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
    border: none;
    background: transparent;
    padding: 0;
    border-top: var(--bw) solid var(--line);
  }

  .page-faq .faq-index__list {
    border-top: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-path,
  .page-faq .faq-path:hover,
  .page-faq .faq-item:hover,
  .page-faq .faq-step__time,
  .page-faq .faq-index__link {
    animation: none;
    transition: none;
    transform: none;
  }

  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-path:hover,
  .page-faq .faq-path:focus-within {
    transform: none;
  }
}
<<<MAIN_HTML_END>>>
<<<PAGE_CSS_END>>>