.page-products {
  --sv-rail-w: 236px;
  --sv-pad: 22px;
  --sv-line: #1E2B25;
}

/* ============ 首屏 ============ */
.page-products .sv-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 38px;
  border-bottom: 1px solid var(--board);
}

.page-products .sv-hero__stamp {
  position: absolute;
  right: -14px;
  top: -30px;
  font-family: var(--font-mono);
  font-size: clamp(120px, 30vw, 250px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--board);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.page-products .sv-hero > *:not(.sv-hero__stamp) {
  position: relative;
  z-index: 1;
}

.page-products .sv-hero__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products .sv-hero__title {
  margin: 12px 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .sv-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-body);
}

.page-products .sv-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  margin-top: 26px;
}

.page-products .sv-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  background: var(--board);
  border: 1px solid var(--board);
}

.page-products .sv-fact {
  margin: 0;
  padding: 14px 16px;
  background: var(--ink);
}

.page-products .sv-fact dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
}

.page-products .sv-fact dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.2;
  color: var(--lime);
}

/* ============ 六项总览 ============ */
.page-products .sv-overview {
  padding: 46px 0 6px;
}

.page-products .sv-overview__head {
  max-width: 66ch;
}

.page-products .sv-tiles {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .sv-tile {
  position: relative;
  padding: 18px 18px 20px;
  background: linear-gradient(180deg, var(--charcoal), var(--ink));
  border: 1px solid var(--board);
  transition: transform var(--t), border-color var(--t);
}

.page-products .sv-tile:hover,
.page-products .sv-tile:focus-within {
  transform: translateY(-4px);
  border-color: var(--lime);
}

.page-products .sv-tile__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-products .sv-tile__name {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.25;
  color: var(--white);
}

.page-products .sv-tile__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-products .sv-tile__tag {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mid);
  border: 1px solid var(--board);
}

/* ============ 布局：粘性索引 + 错位卡片 ============ */
.page-products .sv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding: 44px 0 8px;
}

.page-products .sv-rail {
  padding: 16px;
  background: var(--charcoal);
  border: 1px solid var(--board);
}

.page-products .sv-rail__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mid);
}

.page-products .sv-rail__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .sv-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--text-body);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--t), color var(--t), border-color var(--t);
}

.page-products .sv-rail__link:hover,
.page-products .sv-rail__link:focus-visible {
  background: var(--ink);
  color: var(--lime);
  border-left-color: var(--lime);
}

.page-products .sv-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mist);
}

.page-products .sv-rail__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--board);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mid);
}

.page-products .sv-rail__foot a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 246, 46, 0.4);
}

.page-products .sv-stack {
  display: grid;
  gap: 26px;
  min-width: 0;
}

/* ============ 服务卡片 ============ */
.page-products .sv-card {
  position: relative;
  min-width: 0;
  padding: 24px 20px 26px;
  background: var(--charcoal);
  border: 1px solid var(--board);
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.page-products .sv-card:hover {
  transform: translateY(-4px);
  border-color: var(--mist);
  box-shadow: var(--shadow-lift);
}

.page-products .sv-card__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--board);
}

.page-products .sv-card__idx {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-products .sv-card__kicker {
  grid-column: 2;
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products .sv-card__title {
  grid-column: 2;
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.16;
  color: var(--white);
}

.page-products .sv-card__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 20px;
}

.page-products .sv-card__text p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-body);
}

.page-products .sv-card__text p:last-child {
  margin-bottom: 0;
}

.page-products .sv-card__link {
  font-size: 14px;
}

.page-products .sv-card__link a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 246, 46, 0.4);
  transition: border-color var(--t), color var(--t);
}

.page-products .sv-card__link a:hover {
  border-bottom-color: var(--lime);
}

.page-products .sv-steps {
  counter-reset: sv-step;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .sv-steps li {
  counter-increment: sv-step;
  position: relative;
  padding-left: 40px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--white);
}

.page-products .sv-steps li::before {
  content: counter(sv-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 3px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  color: var(--ink);
  background: var(--lime);
}

/* ============ 图形容器 ============ */
.page-products .sv-figure {
  position: relative;
  overflow: hidden;
  aspect-ratio: 10 / 7;
  background: var(--ink);
  border: 1px solid var(--board);
}

.page-products .sv-figure--std { aspect-ratio: 3 / 2; }
.page-products .sv-figure--sq { aspect-ratio: 4 / 3; }
.page-products .sv-figure--tall { aspect-ratio: 3 / 4; }
.page-products .sv-figure--wide { aspect-ratio: 7 / 4; }

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

.page-products .figure__cap {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mid);
}

/* ============ 卡片内小型数据图形 ============ */
.page-products .sv-metric {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding: 14px;
  background: var(--ink);
  border: 1px solid var(--board);
}

.page-products .sv-metric__ring {
  flex: none;
  width: 66px;
  height: 66px;
}

.page-products .sv-metric__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-products .sv-metric__list strong {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--lime);
}

.page-products .sv-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

.page-products .sv-chips li {
  padding: 5px 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--ink);
  border: 1px solid var(--board);
}

.page-products .sv-slots {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin: 18px 0 0;
  max-width: 270px;
}

.page-products .sv-slot {
  height: 26px;
  background: var(--ink);
  border: 1px solid var(--board);
}

.page-products .sv-slot--on {
  background: var(--lime);
  border-color: var(--lime);
}

.page-products .sv-slots__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mid);
}

.page-products .sv-timeline {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.page-products .sv-track {
  position: relative;
  height: 34px;
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--board);
}

.page-products .sv-track__label {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mid);
}

.page-products .sv-track__fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: rgba(200, 246, 46, 0.16);
  border-right: 2px solid var(--lime);
}

.page-products .sv-track__fill--a { width: 64%; }
.page-products .sv-track__fill--b { width: 47%; }

.page-products .sv-track--b .sv-track__fill {
  background: rgba(127, 212, 255, 0.16);
  border-right-color: var(--cyan);
}

.page-products .sv-track__now {
  position: absolute;
  left: 64%;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--orange);
}

.page-products .sv-track__now--b {
  left: 47%;
}

.page-products .sv-timeline__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mid);
}

.page-products .sv-spark {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 20px 0 0;
}

.page-products .sv-spark__note {
  margin: 8px 0 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mid);
}

/* ============ 开通流程与支持 ============ */
.page-products .sv-card--plain .sv-card__grid {
  grid-template-columns: 1fr;
}

.page-products .sv-support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-products .sv-support__item {
  padding: 16px 16px 18px;
  background: var(--ink);
  border: 1px solid var(--board);
  border-left: 3px solid var(--lime);
}

.page-products .sv-support__item:last-child {
  border-left-color: var(--orange);
}

.page-products .sv-support__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mid);
}

.page-products .sv-support__value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--white);
  word-break: break-all;
}

.page-products .sv-support__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-body);
}

/* ============ 延伸入口 ============ */
.page-products .sv-next {
  margin: 34px 0 60px;
  padding: 24px 20px 26px;
  background: var(--charcoal);
  border: 1px solid var(--board);
}

.page-products .sv-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.8vw, 24px);
  line-height: 1.25;
  color: var(--white);
}

.page-products .sv-next__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-products .sv-next__list a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--lime);
  text-decoration: none;
  background: var(--ink);
  border: 1px solid var(--board);
  transition: border-color var(--t), transform var(--t), background var(--t);
}

.page-products .sv-next__list a:hover,
.page-products .sv-next__list a:focus-visible {
  transform: translateY(-4px);
  border-color: var(--lime);
  background: #0F1B16;
}

.page-products .sv-next__list span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mid);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-products .sv-hero {
    padding: 52px 0 46px;
  }

  .page-products .sv-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .sv-tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .sv-card {
    padding: 28px 26px 30px;
  }

  .page-products .sv-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1000px) {
  .page-products .sv-layout {
    grid-template-columns: var(--sv-rail-w) minmax(0, 1fr);
    gap: 52px;
    padding-top: 54px;
  }

  .page-products .sv-rail {
    position: sticky;
    top: calc(var(--header-h) + var(--ticker-h) + 20px);
    align-self: start;
  }

  .page-products .sv-tiles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .sv-card:nth-child(odd) {
    margin-right: 36px;
  }

  .page-products .sv-card:nth-child(even) {
    margin-left: 36px;
  }

  .page-products .sv-card__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .sv-card--plain .sv-card__grid {
    max-width: 78ch;
  }
}

@media (min-width: 1180px) {
  .page-products .sv-hero__title {
    max-width: 20em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .sv-tile,
  .page-products .sv-card,
  .page-products .sv-next__list a {
    transition: none;
  }

  .page-products .sv-tile:hover,
  .page-products .sv-tile:focus-within,
  .page-products .sv-card:hover,
  .page-products .sv-next__list a:hover,
  .page-products .sv-next__list a:focus-visible {
    transform: none;
  }
}