.page-faq {
  --faq-panel: rgba(15, 42, 68, 0.62);
  --faq-panel-deep: rgba(8, 25, 43, 0.6);
  --faq-glow: rgba(53, 214, 227, 0.12);
  --faq-hair: rgba(28, 61, 92, 0.9);
  background: var(--c-deep);
  color: var(--c-paper);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(16px, 3vw, 26px) 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-dim);
}

.page-faq .faq-crumb a {
  color: var(--c-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 54px) 0 clamp(28px, 5vw, 58px);
  border-bottom: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(15, 42, 68, 0.92) 0%, rgba(8, 25, 43, 0.98) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(115deg, rgba(53, 214, 227, 0.09) 0 1px, transparent 1px 118px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(48%, 520px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan));
  opacity: 0.5;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 16px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 18em;
  font-size: clamp(28px, 5.4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 14px 22px;
  margin: 6px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-stat {
  display: grid;
  gap: 6px;
}

.page-faq .faq-stat dt {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-dim);
}

.page-faq .faq-stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  color: var(--c-cyan-soft);
}

/* ---------- 五栏目横排 ---------- */
.page-faq .faq-tabs {
  border-bottom: 1px solid var(--c-line);
  background: rgba(15, 42, 68, 0.75);
}

.page-faq .faq-tabs__inner {
  display: flex;
  gap: 8px;
  padding: 14px 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid var(--c-line);
  background: var(--faq-panel-deep);
  color: var(--c-muted);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--c-paper);
  border-color: var(--c-cyan);
}

.page-faq .faq-tab__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--c-dim);
}

.page-faq .faq-tab--current {
  color: var(--c-paper);
  border-color: var(--c-cyan);
  background: linear-gradient(120deg, rgba(53, 214, 227, 0.24), rgba(53, 214, 227, 0.05));
}

.page-faq .faq-tab--current .faq-tab__num {
  color: var(--c-cyan);
}

/* ---------- 分屏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: clamp(26px, 5vw, 58px) 0 clamp(48px, 7vw, 96px);
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(208px, 25%) 1fr;
    gap: clamp(36px, 4vw, 62px);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 112px;
  }
}

/* ---------- 章节索引 ---------- */
.page-faq .faq-index {
  padding: 16px 14px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-cyan);
  background: var(--faq-panel);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-dim);
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--c-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__link:hover {
  color: var(--c-paper);
  background: rgba(53, 214, 227, 0.08);
}

.page-faq .faq-index__link[aria-current="location"] {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
  background: rgba(53, 214, 227, 0.08);
}

.page-faq .faq-index__n {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--c-dim);
}

@media (min-width: 1000px) {
  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 1px;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 7px 9px;
  }

  .page-faq .faq-index__link[aria-current="location"] {
    border-left-color: var(--c-cyan);
  }
}

/* ---------- 章节容器 ---------- */
.page-faq .faq-content {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-faq .faq-block {
  position: relative;
  padding: clamp(20px, 3.4vw, 34px) clamp(18px, 3vw, 34px);
  background: linear-gradient(165deg, rgba(15, 42, 68, 0.72), rgba(8, 25, 43, 0.55));
  box-shadow: inset 0 0 0 1px var(--c-line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  scroll-margin-top: 120px;
}

.page-faq .faq-block--key {
  background: linear-gradient(165deg, rgba(15, 42, 68, 0.94), rgba(8, 25, 43, 0.72));
  box-shadow: inset 0 0 0 1px rgba(53, 214, 227, 0.45);
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-faq .faq-block__num {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid rgba(53, 214, 227, 0.4);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-faq .faq-block__num--hot {
  color: var(--c-deep);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(19px, 2.7vw, 28px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-faq .faq-block__lead {
  margin: 0 0 18px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-faq .faq-block__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-dim);
}

.page-faq .faq-block__foot a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 227, 0.42);
}

.page-faq .faq-block__foot a:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 设备与版本 ---------- */
.page-faq .faq-devices {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
}

@media (min-width: 760px) {
  .page-faq .faq-devices {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .faq-device {
  display: grid;
  gap: 7px;
  padding: 15px 16px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-cyan);
  background: var(--faq-panel-deep);
}

.page-faq .faq-device__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-device__spec {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--c-gold);
}

.page-faq .faq-device__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 通道章节的分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 22px;
}

@media (min-width: 880px) {
  .page-faq .faq-split {
    grid-template-columns: 1fr minmax(220px, 36%);
    align-items: start;
  }
}

.page-faq .faq-split__text .faq-block__lead {
  margin-bottom: 16px;
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .figure__frame {
  padding: 10px;
  border: 1px solid var(--c-line);
  background: rgba(8, 25, 43, 0.72);
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--c-dim);
}

/* ---------- 步骤清单 ---------- */
.page-faq .faq-steps {
  list-style: none;
  display: grid;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  padding: 9px 0;
}

.page-faq .faq-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 43px;
  bottom: -2px;
  border-left: 1px dashed rgba(53, 214, 227, 0.35);
}

.page-faq .faq-step__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--c-cyan);
  border-radius: 50%;
  background: rgba(53, 214, 227, 0.1);
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 600;
}

.page-faq .faq-step__text {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-paper);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-fold {
  margin-bottom: 10px;
  border: 1px solid var(--c-line);
  background: var(--faq-panel-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

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

.page-faq .faq-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-paper);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-fold > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-fold > summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .faq-fold[open] > summary {
  color: var(--c-cyan-soft);
}

.page-faq .faq-fold[open] > summary::after {
  content: "－";
}

.page-faq .faq-fold__body {
  padding: 0 18px 16px;
}

.page-faq .faq-fold__body p {
  margin: 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  background: rgba(8, 25, 43, 0.5);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table__caption {
  caption-side: top;
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-dim);
  background: rgba(15, 42, 68, 0.82);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.72;
}

.page-faq .faq-table thead th {
  border-bottom: 1px solid var(--c-line);
  background: var(--c-mid);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-cyan-soft);
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  color: var(--c-paper);
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  color: var(--c-muted);
}

.page-faq .faq-table tbody tr + tr th,
.page-faq .faq-table tbody tr + tr td {
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-table tbody tr:nth-child(even) th,
.page-faq .faq-table tbody tr:nth-child(even) td {
  background: rgba(244, 218, 154, 0.03);
}

.page-faq .faq-table tbody tr:hover th,
.page-faq .faq-table tbody tr:hover td {
  background: rgba(53, 214, 227, 0.09);
}

.page-faq .faq-money {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  white-space: nowrap;
  color: var(--c-gold);
}

.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

/* ---------- 升级版报价 ---------- */
.page-faq .faq-price {
  position: relative;
  display: grid;
  justify-items: start;
  gap: 10px;
  margin-bottom: 18px;
  padding: 20px 22px 20px 24px;
  border: 1px solid rgba(227, 178, 79, 0.55);
  background: linear-gradient(110deg, rgba(227, 178, 79, 0.16), rgba(227, 178, 79, 0.02) 64%);
}

.page-faq .faq-price::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c-gold);
}

.page-faq .faq-price__range {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.8vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-gold-soft);
}

.page-faq .faq-price__note {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 顺序清单 ---------- */
.page-faq .faq-order {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-order li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 12px 16px;
  border-left: 2px solid var(--c-cyan);
  background: var(--faq-panel-deep);
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .faq-order__k {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--c-cyan);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
}

@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-faq .faq-contact .contact-list__item {
  display: grid;
  justify-items: start;
  gap: 7px;
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-cyan);
  background: var(--faq-panel-deep);
}

.page-faq .faq-contact .contact-list__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-dim);
}

.page-faq .faq-contact .contact-list__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--c-paper);
  word-break: break-all;
}

.page-faq .copy-btn {
  margin-top: 4px;
}

/* ---------- 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>