.page-faq {
  --faq-soft: rgba(31, 62, 99, 0.72);
  --faq-glow: rgba(37, 230, 216, 0.07);
  --faq-pad: clamp(18px, 4vw, 30px);
  background: var(--void);
  color: var(--mist);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-block: 16px 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(26px, 5vw, 56px) clamp(34px, 6vw, 68px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(37, 230, 216, 0.1), transparent 62%),
    linear-gradient(180deg, var(--void), var(--deck));
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--faq-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(24px, 5vw, 48px);
  align-items: start;
}

.page-faq .faq-hero h1 {
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 74px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--mist);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__index {
  border: 1px solid var(--line);
  background: rgba(11, 27, 49, 0.78);
  padding: 16px 16px 6px;
  box-shadow: 0 1px 0 rgba(140, 160, 184, 0.06) inset;
}

.page-faq .faq-hero__index-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-faq .faq-hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero__index-list li {
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__index-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 2px;
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.16s var(--ease);
}

.page-faq .faq-hero__index-list a:hover,
.page-faq .faq-hero__index-list a:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-hero__no {
  font-family: var(--f-head);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 区块通用 ---------- */
.page-faq .section {
  padding-block: clamp(44px, 6vw, 84px);
}

.page-faq .section__head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: clamp(22px, 4vw, 38px);
  border-bottom: 1px solid var(--line);
}

.page-faq .section__title {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .section__desc {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-note {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--cyan);
  background: var(--deck);
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 40em;
}

/* ---------- 上手路径 ---------- */
.page-faq .faq-start__shot {
  position: relative;
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(135deg, rgba(31, 62, 99, 0.4) 0 1px, transparent 1px 14px),
    var(--deck);
  overflow: hidden;
}

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

.page-faq .faq-start__shot figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 8px 14px;
  background: rgba(6, 15, 31, 0.88);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--cyan-soft);
}

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

.page-faq .faq-flow__rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-faq .faq-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-flow__list::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--line);
}

.page-faq .faq-flow__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}

.page-faq .faq-flow__num {
  position: relative;
  flex: 0 0 31px;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--void);
  font-family: var(--f-head);
  font-size: 11px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.16s var(--ease);
}

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

.page-faq .faq-flow__link:hover .faq-flow__num,
.page-faq .faq-flow__link:focus-visible .faq-flow__num {
  border-color: var(--cyan);
}

.page-faq .faq-step {
  border: 1px solid var(--line);
  background: var(--deck);
  margin-bottom: 12px;
  scroll-margin-top: 96px;
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

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

.page-faq .faq-step[open] {
  border-color: var(--cyan);
  background: var(--panel);
}

.page-faq .faq-step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-step__head::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: 4px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.24s var(--ease);
}

.page-faq .faq-step[open] .faq-step__head::after {
  transform: rotate(225deg);
}

.page-faq .faq-step__no {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--void);
  font-family: var(--f-head);
  font-size: 12px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  transition: background-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-faq .faq-step[open] .faq-step__no {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-step__title {
  flex: 1 1 auto;
  font-family: var(--f-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-step__hint {
  display: none;
  font-size: 12px;
  color: var(--slate);
}

.page-faq .faq-step__body {
  padding: 16px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-step__body p {
  margin: 0 0 10px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

/* ---------- 有序步骤 ---------- */
.page-faq .faq-ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-ol > li {
  position: relative;
  padding: 0 0 22px 48px;
  counter-increment: faqstep;
}

.page-faq .faq-ol > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  font-family: var(--f-head);
  font-size: 12px;
  color: var(--cyan-soft);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-ol > li::after {
  content: "";
  position: absolute;
  left: 16px;
  top: 36px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}

.page-faq .faq-ol > li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-ol > li:last-child::after {
  display: none;
}

.page-faq .faq-ol strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--f-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-ol p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 权益查询 ---------- */
.page-faq .faq-benefit__split {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-benefit__shot {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-benefit__shot figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--slate);
}

/* ---------- 预览与下载 ---------- */
.page-faq .faq-download__grid {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-download__aside {
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--deck);
  padding: 18px 18px 20px;
}

.page-faq .faq-download__aside-title {
  margin: 0 0 12px;
  font-family: var(--f-head);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-download__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-faq .faq-download__aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 34em;
}

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

.page-faq .faq-download__aside .meta {
  color: var(--cyan-soft);
  font-size: 12px;
}

/* ---------- 排查链 ---------- */
.page-faq .faq-chain {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-chain__item {
  position: relative;
  padding: 0 0 14px 44px;
}

.page-faq .faq-chain__item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 36px;
  bottom: -2px;
  width: 2px;
  background: var(--line);
}

.page-faq .faq-chain__item::after {
  content: "";
  position: absolute;
  left: 10px;
  bottom: 8px;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--line);
}

.page-faq .faq-chain__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-chain__item:last-child::before,
.page-faq .faq-chain__item:last-child::after {
  display: none;
}

.page-faq .faq-chain__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--void);
  font-family: var(--f-head);
  font-size: 12px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-chain__node {
  border: 1px solid var(--line);
  background: var(--deck);
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .faq-chain__node[open] {
  border-color: var(--cyan);
  background: var(--panel);
}

.page-faq .faq-chain__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--f-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--mist);
}

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

.page-faq .faq-chain__head::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--f-body);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-chain__node[open] .faq-chain__head::after {
  content: "–";
}

.page-faq .faq-chain__panel {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

.page-faq .faq-chain__panel p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 申领与工单 ---------- */
.page-faq .faq-trio {
  display: grid;
  gap: 14px;
}

.page-faq .faq-trio__item {
  position: relative;
  border: 1px solid var(--line);
  background: var(--deck);
  padding: 20px 18px 18px;
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .faq-trio__item:hover {
  border-color: var(--cyan);
  background: var(--panel);
}

.page-faq .faq-trio__no {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  background: var(--panel);
  border: 1px solid var(--line);
  font-family: var(--f-head);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-trio__item h3 {
  margin: 0 0 8px;
  font-family: var(--f-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .faq-trio__item p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-trio__item .link-arrow {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
}

/* ---------- 术语对照 ---------- */
.page-faq .table-wrap {
  border: 1px solid var(--line);
  overflow-x: auto;
  background: var(--deck);
}

.page-faq .data-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.page-faq .data-table thead th {
  background: var(--panel);
  font-family: var(--f-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .data-table tbody td {
  color: var(--slate);
}

.page-faq .data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .data-table tbody tr:hover {
  background: var(--faq-glow);
}

.page-faq .data-table td:first-child {
  color: var(--cyan-soft);
  font-weight: 700;
  white-space: nowrap;
}

.page-faq .data-table .link-arrow {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}

.page-faq .data-table .link-arrow:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 结尾行动 ---------- */
.page-faq .faq-cta {
  background: linear-gradient(160deg, var(--deck), var(--panel));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-faq .faq-cta__text h2 {
  margin: 0 0 10px;
  font-family: var(--f-head);
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .faq-cta__text p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-step__hint {
    display: block;
  }

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

  .page-faq .faq-trio__item:first-child {
    grid-column: span 2;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-flow {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-flow__rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-benefit__split {
    grid-template-columns: 1.3fr 1fr;
    gap: 44px;
  }

  .page-faq .faq-download__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 44px;
  }

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

  .page-faq .faq-trio__item:first-child {
    grid-column: auto;
  }

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

@media (min-width: 1100px) {
  .page-faq .faq-step__head {
    padding: 17px 20px;
  }

  .page-faq .faq-step__body {
    padding: 18px 20px 22px;
  }

  .page-faq .faq-trio__item {
    padding: 24px 22px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step__head::after,
  .page-faq .faq-step__no,
  .page-faq .faq-chain__node,
  .page-faq .faq-trio__item,
  .page-faq .faq-flow__num {
    transition: none;
  }
}
<<<END>>>