.page-products {
  --sv-gap: clamp(18px, 2.6vw, 36px);
  --sv-line: rgba(94, 107, 122, 0.38);
  --sv-h1: clamp(34px, 5vw, 62px);
  --sv-body: 15px;
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

.page-products .sv-crumbwrap {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .sv-hero {
  padding-block: clamp(18px, 2.6vw, 30px) clamp(30px, 5vw, 64px);
  border-bottom: 1px solid var(--sv-line);
}

.page-products .sv-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-products .sv-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: var(--sv-h1);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-products .sv-hero__lede {
  max-width: 56ch;
  margin: 18px 0 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-products .sv-index {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 32px);
  background: var(--sv-line);
  border: 1px solid var(--sv-line);
}

.page-products .sv-index__item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products .sv-index__item:hover,
.page-products .sv-index__item:focus-visible {
  background: var(--ink-700);
}

.page-products .sv-index__no {
  font-size: var(--fs-index);
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .sv-index__text {
  display: grid;
  gap: 3px;
}

.page-products .sv-index__text strong {
  font-size: 15px;
  font-weight: 600;
}

.page-products .sv-index__text span {
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--paper-dim);
}

.page-products .sv-index__arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--orange);
  transition: color 0.18s var(--ease);
}

.page-products .sv-index__item:hover .sv-index__arrow,
.page-products .sv-index__item:focus-visible .sv-index__arrow {
  color: var(--cyan);
}

.page-products .sv-hero__visual {
  display: grid;
  align-content: start;
  gap: 10px;
}

.page-products .sv-stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--sv-line);
  border: 1px solid var(--sv-line);
}

.page-products .sv-stat-strip > div {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--ink-800);
}

.page-products .sv-stat-strip dt {
  font-size: var(--fs-index);
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-products .sv-stat-strip dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-products .sv-stat-strip > div:last-child dd {
  color: var(--orange);
}

/* ---------- 通用媒体框 ---------- */
.page-products .media-frame {
  border: 1px solid var(--sv-line);
  background: var(--ink-800);
}

.page-products .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节骨架 ---------- */
.page-products .sv-sec {
  padding-block: clamp(36px, 6vw, 76px);
  border-bottom: 1px solid var(--sv-line);
}

.page-products .sv-sec--last {
  border-bottom: 0;
}

.page-products .sv-sec .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .sv-sec p {
  font-size: var(--sv-body);
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-products .sv-sec p + p {
  margin-top: 14px;
}

/* ---------- 分栏 ---------- */
.page-products .sv-split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-products .sv-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .sv-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-products .sv-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 版本包计数面板 ---------- */
.page-products .sv-count {
  padding: 22px;
}

.page-products .sv-count__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(46px, 8vw, 70px);
  line-height: 1;
  color: var(--orange);
}

.page-products .sv-count__label {
  margin: 8px 0 18px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-dim);
}

.page-products .sv-count__rows {
  margin: 0;
  border-top: 1px solid var(--sv-line);
}

.page-products .sv-count__rows > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--sv-line);
}

.page-products .sv-count__rows dt {
  font-size: var(--fs-small);
  color: var(--steel);
}

.page-products .sv-count__rows dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--paper);
  text-align: right;
}

/* ---------- 四类资料 tabs ---------- */
.page-products .sv-tabs {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .sv-tabs__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .sv-tabs__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .sv-tabs__chips .chip {
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products #sv-mat-1:checked ~ .sv-tabs__chips [for="sv-mat-1"],
.page-products #sv-mat-2:checked ~ .sv-tabs__chips [for="sv-mat-2"],
.page-products #sv-mat-3:checked ~ .sv-tabs__chips [for="sv-mat-3"],
.page-products #sv-mat-4:checked ~ .sv-tabs__chips [for="sv-mat-4"] {
  background: var(--cyan);
  color: var(--ink-950);
  border-color: var(--cyan);
}

.page-products .sv-tabs__panel {
  display: none;
  gap: clamp(18px, 3vw, 32px);
  padding: 20px;
  background: var(--ink-800);
  border: 1px solid var(--sv-line);
  border-left: 3px solid var(--orange);
}

.page-products #sv-mat-1:checked ~ .sv-tabs__panels > .sv-tabs__panel:nth-child(1),
.page-products #sv-mat-2:checked ~ .sv-tabs__panels > .sv-tabs__panel:nth-child(2),
.page-products #sv-mat-3:checked ~ .sv-tabs__panels > .sv-tabs__panel:nth-child(3),
.page-products #sv-mat-4:checked ~ .sv-tabs__panels > .sv-tabs__panel:nth-child(4) {
  display: grid;
}

.page-products .sv-mat__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--paper);
}

.page-products .sv-tabs__panel p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-dim);
}

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

.page-products .sv-mat__fields {
  list-style: none;
  margin: 0;
  padding: 0;
  align-self: start;
  border-top: 1px solid var(--sv-line);
}

.page-products .sv-mat__fields li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--sv-line);
  font-size: var(--fs-small);
  color: var(--steel);
}

.page-products .sv-mat__fields li span:last-child {
  color: var(--paper);
  text-align: right;
}

.page-products .sv-materials__visual {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 检索 ---------- */
.page-products .sv-search {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-products .sv-search__steps {
  counter-reset: svstep;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .sv-search__steps li {
  position: relative;
  padding-left: 38px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-products .sv-search__steps li::before {
  counter-increment: svstep;
  content: counter(svstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.18em;
  padding: 2px 5px;
  border: 1px solid var(--sv-line);
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  color: var(--cyan);
}

.page-products .sv-details {
  margin-top: 22px;
  border: 1px solid var(--sv-line);
  background: var(--ink-800);
}

.page-products .sv-details summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  font-size: 14px;
  color: var(--cyan);
  list-style: none;
}

.page-products .sv-details summary::-webkit-details-marker {
  display: none;
}

.page-products .sv-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-products .sv-details[open] summary::after {
  content: "−";
}

.page-products .sv-details__body {
  padding: 4px 16px 16px;
  border-top: 1px solid var(--sv-line);
}

.page-products .sv-details__query {
  margin: 12px 0 10px;
  font-size: var(--fs-index);
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-products .sv-result {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--sv-line);
}

.page-products .sv-result li {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  background: var(--ink-800);
}

.page-products .sv-result__k {
  font-size: var(--fs-index);
  letter-spacing: 0.08em;
  color: var(--yellow);
}

.page-products .sv-result__v {
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--paper-dim);
}

/* ---------- 流程 ---------- */
.page-products .sv-flow {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .sv-flow__list {
  list-style: none;
  margin: 0;
  padding: 2px 0 2px 22px;
  border-left: 1px solid var(--sv-line);
  display: grid;
  gap: 22px;
}

.page-products .sv-flow__item {
  position: relative;
}

.page-products .sv-flow__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--orange);
}

.page-products .sv-flow__no {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-products .sv-flow__item h3 {
  margin: 5px 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--paper);
}

.page-products .sv-flow__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-products .sv-flow__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .sv-compare {
  display: grid;
  gap: 10px;
}

.page-products .sv-compare__card {
  padding: 14px;
  border: 1px solid var(--sv-line);
  background: var(--ink-800);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-products .sv-compare__card:hover,
.page-products .sv-compare__card:focus-within {
  border-color: var(--cyan);
  background: var(--ink-700);
}

.page-products .sv-compare__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .sv-compare__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding: 5px 0;
  font-size: var(--fs-small);
  color: var(--paper-dim);
  border-bottom: 1px solid var(--sv-line);
}

.page-products .sv-compare__row .mono {
  color: var(--paper);
}

.page-products .sv-compare__extra {
  margin: 9px 0 0;
  font-size: var(--fs-index);
  line-height: 1.6;
  color: var(--steel);
  opacity: 0.62;
  border-left: 2px solid var(--sv-line);
  padding-left: 8px;
  transition: opacity 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products .sv-compare__card:hover .sv-compare__extra,
.page-products .sv-compare__card:focus-within .sv-compare__extra {
  opacity: 1;
  border-color: var(--orange);
  color: var(--paper-dim);
}

/* ---------- 场景 ---------- */
.page-products .sv-scenarios {
  display: grid;
  gap: 1px;
  margin-top: clamp(18px, 3vw, 28px);
  background: var(--sv-line);
  border: 1px solid var(--sv-line);
}

.page-products .sv-scenario {
  padding: 20px;
  background: var(--ink-800);
  border-top: 2px solid transparent;
  transition: background 0.18s var(--ease);
}

.page-products .sv-scenario:hover {
  background: var(--ink-700);
}

.page-products .sv-scenario:nth-child(1) {
  border-top-color: var(--orange);
}

.page-products .sv-scenario:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-products .sv-scenario:nth-child(3) {
  border-top-color: var(--yellow);
}

.page-products .sv-scenario:nth-child(4) {
  border-top-color: var(--green);
}

.page-products .sv-scenario__no {
  margin: 0;
  font-size: var(--fs-index);
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-products .sv-scenario h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--paper);
}

.page-products .sv-scenario p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

/* ---------- 规模 ---------- */
.page-products .sv-scale__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-products .sv-scale__visual {
  align-self: start;
}

.page-products .sv-figures {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--sv-line);
  border: 1px solid var(--sv-line);
}

.page-products .sv-figure {
  display: grid;
  gap: 4px;
  padding: 16px;
  background: var(--ink-800);
}

.page-products .sv-figure__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-products .sv-figure:nth-child(2n) .sv-figure__num {
  color: var(--orange);
}

.page-products .sv-figure__label {
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--paper-dim);
}

/* ---------- 开始使用 ---------- */
.page-products .sv-start {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(18px, 3vw, 26px);
}

.page-products .sv-start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-products .sv-start__contact {
  padding: 22px;
}

.page-products .sv-start__contact p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

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

.page-products .sv-start__contact .mono {
  font-size: 15px;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-products .sv-start__foot {
  margin: 24px 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--steel);
}

.page-products .sv-start__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--sv-line);
}

.page-products .sv-start__foot a:hover,
.page-products .sv-start__foot a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 620px) {
  .page-products .sv-scenarios {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .sv-compare {
    grid-template-columns: 1fr 1fr;
  }

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

@media (min-width: 860px) {
  .page-products .sv-tabs__panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

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

@media (min-width: 900px) {
  .page-products .sv-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .sv-search {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .sv-scale__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-products .sv-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-products .sv-flow {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-products .sv-figures {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .sv-index__item,
  .page-products .sv-index__arrow,
  .page-products .sv-tabs__chips .chip,
  .page-products .sv-compare__card,
  .page-products .sv-compare__extra,
  .page-products .sv-scenario {
    transition: none;
  }
}
<<<END>>>