.page-faq {
  --faq-gap: clamp(12px, 2vw, 22px);
  --faq-pad: clamp(16px, 3vw, 30px);
  --faq-hair: #1B2C3F;
  background: var(--night);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: 14px;
  padding-bottom: 6px;
  font-size: 13px;
}
.page-faq .crumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  align-items: center;
}
.page-faq .crumbs__item {
  color: var(--steel);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin: 0 10px;
  color: #3a5169;
}
.page-faq .crumbs__link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}
.page-faq .crumbs__link:hover,
.page-faq .crumbs__link:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.6vw, 54px) 0 clamp(26px, 4vw, 48px);
  background: linear-gradient(166deg, var(--night) 0 58%, var(--pitch) 58% 100%);
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(27, 44, 63, 0.62) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(to bottom, rgba(27, 44, 63, 0.46) 0 1px, transparent 1px 84px);
  -webkit-mask-image: linear-gradient(198deg, #000 0 52%, transparent 88%);
  mask-image: linear-gradient(198deg, #000 0 52%, transparent 88%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: end;
}
.page-faq .eyebrow {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--lime);
  border: 1px solid var(--faq-hair);
  background: rgba(198, 255, 61, 0.07);
}
.page-faq h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 6.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ivory);
}
.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ink);
}
.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.page-faq .faq-hero__meta .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 首屏跳转卡 ---------- */
.page-faq .faq-jump {
  position: relative;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--lime);
  background: rgba(6, 10, 15, 0.7);
  padding: 16px 16px 12px;
}
.page-faq .faq-jump__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
}
.page-faq .faq-jump__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-jump__list li + li {
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-jump__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--lime);
  padding-left: 6px;
}
.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  background: var(--carbon);
  border-bottom: 1px solid var(--faq-hair);
  padding: 12px 0;
}
.page-faq .faq-filter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}
.page-faq .faq-filter__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}
.page-faq .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .chip {
  font-family: var(--font-sans);
  font-size: 13.5px;
  cursor: pointer;
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  padding: clamp(30px, 5vw, 58px) 0;
  border-bottom: 1px solid var(--faq-hair);
  scroll-margin-top: 96px;
}
.page-faq .faq-block--pitch {
  background: var(--pitch);
}
.page-faq .faq-block--carbon {
  background: var(--carbon);
}
.page-faq .section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(18px, 3vw, 32px);
}
.page-faq .section-index {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 56px);
  line-height: 0.86;
  letter-spacing: -0.03em;
  color: var(--line);
  font-variant-numeric: tabular-nums;
  transition: color var(--t-mid);
}
.page-faq .is-current .section-index {
  color: var(--lime);
}
.page-faq h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ivory);
}
.page-faq .section-head__body p {
  margin: 8px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.76;
  color: var(--steel);
}

/* ---------- 四步读表 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-hair);
}
.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .step::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--t-mid);
}
.page-faq .step:hover::after,
.page-faq .step:focus-within::after {
  transform: scaleY(1);
}
.page-faq .step__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  padding-top: 4px;
}
.page-faq .step__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ivory);
}
.page-faq .step__text {
  grid-column: 2;
  margin: 4px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 图表区 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 34px) 0 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--faq-hair);
  background: var(--carbon);
  object-fit: cover;
}
.page-faq .faq-figure--side {
  margin: 0;
}
.page-faq .media-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 问答卡 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--faq-hair);
}
.page-faq .qa-list--spaced {
  margin-top: clamp(20px, 3vw, 32px);
}
.page-faq .qa {
  border-bottom: 1px solid var(--faq-hair);
  background: transparent;
  transition: background var(--t-fast);
}
.page-faq .qa[open] {
  background: rgba(198, 255, 61, 0.055);
}
.page-faq .qa__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  padding: 15px 4px 15px 8px;
  cursor: pointer;
  list-style: none;
  transition: padding-left var(--t-fast);
}
.page-faq .qa__head::-webkit-details-marker {
  display: none;
}
.page-faq .qa__head::marker {
  content: "";
}
.page-faq .qa__head:hover {
  padding-left: 14px;
}
.page-faq .qa__head:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}
.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.page-faq .qa__tag {
  font-size: 11.5px;
}
.page-faq .qa__q {
  flex: 1 1 100%;
  position: relative;
  padding-right: 28px;
  margin-top: 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ivory);
}
.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -1px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--lime);
}
.page-faq .qa[open] .qa__q::after {
  content: "−";
}
.page-faq .qa__body {
  padding: 0 4px 20px 8px;
  border-left: 2px solid rgba(53, 224, 200, 0.35);
  margin-left: 4px;
  padding-left: 14px;
}
.page-faq .qa__body p {
  margin: 0 0 10px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__body strong {
  color: var(--lime);
  font-weight: 700;
}
.page-faq .qa__body a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .qa__steps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}
.page-faq .qa__steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink);
}
.page-faq .qa__steps li::before {
  counter-increment: qastep;
  content: counter(qastep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan);
  padding-top: 4px;
}
.page-faq .qa__steps {
  counter-reset: qastep;
}
.page-faq .qa__steps .link-arrow {
  color: var(--lime);
}

/* ---------- 积分表 ---------- */
.page-faq .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--faq-hair);
  background: rgba(6, 10, 15, 0.5);
  margin-bottom: clamp(18px, 3vw, 28px);
  -webkit-overflow-scrolling: touch;
}
.page-faq .data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
  color: var(--ink);
}
.page-faq .data-table th,
.page-faq .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--faq-hair);
  vertical-align: top;
}
.page-faq .data-table tbody tr:last-child th,
.page-faq .data-table tbody tr:last-child td {
  border-bottom: 0;
}
.page-faq .data-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--steel);
  background: var(--carbon);
}
.page-faq .data-table tbody th {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--ivory);
  white-space: nowrap;
}
.page-faq .data-table .is-highlight {
  color: var(--lime);
  background: rgba(198, 255, 61, 0.08);
}
.page-faq .data-table .num {
  font-family: var(--font-mono);
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- 客户端区 ---------- */
.page-faq .client-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}
.page-faq .client-grid__qa {
  min-width: 0;
}

/* ---------- 联系收尾 ---------- */
.page-faq .faq-more__grid {
  gap: var(--faq-gap);
}
.page-faq .faq-more .panel {
  border: 1px solid var(--faq-hair);
  background: rgba(11, 29, 51, 0.72);
  padding: var(--faq-pad);
}
.page-faq .faq-more .panel--accent {
  border-left: 3px solid var(--lime);
}
.page-faq .faq-more .panel--ivory {
  background: var(--ivory);
  border-color: var(--ivory);
}
.page-faq .faq-more .panel--ivory .panel__title,
.page-faq .faq-more .panel--ivory .faq-more__value,
.page-faq .faq-more .panel--ivory .faq-more__note {
  color: #0B1D33;
}
.page-faq .faq-more .panel__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel);
}
.page-faq .faq-more__value {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ivory);
  word-break: break-word;
}
.page-faq .faq-more__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}
.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}
.page-faq .faq-more__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .section-head {
    grid-template-columns: auto 1fr;
    gap: 14px 20px;
    align-items: start;
  }
  .page-faq .qa__q {
    flex: 1 1 auto;
    margin-top: 0;
  }
  .page-faq .qa__head {
    padding-left: 10px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(268px, 0.85fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-faq .client-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.72fr);
    align-items: start;
  }
  .page-faq .faq-figure--side {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1120px) {
  .page-faq .step-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 0;
    column-gap: clamp(24px, 3.6vw, 48px);
  }
  .page-faq .step {
    border-top: 1px solid var(--faq-hair);
  }
  .page-faq .step:nth-child(1),
  .page-faq .step:nth-child(2) {
    border-top: 1px solid var(--faq-hair);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step::after,
  .page-faq .qa__head,
  .page-faq .faq-jump__link,
  .page-faq .section-index {
    transition: none;
  }
  .page-faq .step:hover::after,
  .page-faq .step:focus-within::after {
    transform: scaleY(1);
  }
}