.page-products {
  --biz-gap: 20px;
  background: var(--ink-900);
  color: var(--paper-100);
  font-size: var(--step-17);
  line-height: 1.75;
}

.page-products p {
  margin: 0 0 14px;
  color: var(--steel-400);
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  color: var(--paper-100);
  letter-spacing: -0.02em;
  margin: 0;
}

.page-products h1 {
  font-size: clamp(30px, 6.2vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  margin: 12px 0 18px;
}

.page-products h2 {
  font-size: clamp(26px, 4.4vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  margin: 10px 0 12px;
}

.page-products .breadcrumb {
  margin-top: 20px;
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--steel-400);
}

/* ---------- 首屏 ---------- */
.page-products .biz-hero {
  padding: 20px 0 48px;
}

.page-products .biz-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .biz-hero__lede {
  max-width: 62ch;
  font-size: var(--step-17);
  color: var(--steel-400);
}

.page-products .biz-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .biz-hero__panel {
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px;
}

.page-products .biz-hero__note {
  font-size: var(--step-14);
  color: var(--steel-400);
  margin: 0;
}

.page-products .biz-metrics {
  display: grid;
  gap: 14px;
  margin: 16px 0 18px;
}

.page-products .biz-metrics__row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-600);
}

.page-products .biz-metrics dt {
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--steel-400);
}

.page-products .biz-metrics dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step-14);
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-products .biz-metrics dd .num {
  font-size: var(--step-30);
  line-height: 1;
  margin-right: 4px;
}

.page-products .biz-metrics__row--hot dd {
  color: var(--orange-500);
}

/* ---------- 章节骨架 ---------- */
.page-products .biz-sec {
  position: relative;
  padding: 48px 0;
}

.page-products .biz-sec::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--line-600);
}

.page-products .biz-sec-head {
  max-width: 780px;
  margin-bottom: 26px;
}

.page-products .biz-lede {
  font-size: var(--step-17);
  color: var(--steel-400);
  max-width: 68ch;
}

/* ---------- 四宫格能力 ---------- */
.page-products .biz-cap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--biz-gap);
}

.page-products .biz-cap {
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px 18px;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .biz-cap:hover,
.page-products .biz-cap:focus-within {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-hard-sm);
  border-color: var(--cyan-400);
}

.page-products .biz-cap__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-30);
  line-height: 1;
  color: var(--cyan-400);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.page-products .biz-cap h3 {
  font-size: var(--step-22);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-products .biz-cap p {
  font-size: var(--step-14);
  line-height: 1.8;
}

.page-products .biz-cap__who {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
}

/* ---------- 左右分屏 ---------- */
.page-products .biz-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-products .biz-split__text h3 {
  font-size: var(--step-22);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}

.page-products .biz-defs {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .biz-defs li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line-600);
}

.page-products .biz-defs__k {
  font-family: var(--font-display);
  font-size: var(--step-17);
  font-weight: 700;
  color: var(--cyan-400);
}

.page-products .biz-defs__v {
  font-size: var(--step-14);
  line-height: 1.75;
  color: var(--steel-400);
}

/* ---------- 图片框 ---------- */
.page-products .biz-shot {
  margin: 0;
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: 10px;
}

.page-products .biz-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .biz-shot__cap {
  display: block;
  margin: 10px 0 0;
  font-size: var(--step-12);
  letter-spacing: 0.06em;
  color: var(--steel-400);
}

.page-products .biz-shot--wide {
  margin-top: 26px;
}

/* ---------- 筛选演示 ---------- */
.page-products .biz-demo {
  margin-top: 30px;
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: 20px 18px;
}

.page-products .biz-demo__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}

.page-products .biz-demo__count {
  margin: 0;
  font-size: var(--step-14);
  color: var(--steel-400);
}

.page-products .biz-demo__count .num {
  font-family: var(--font-mono);
  font-size: var(--step-22);
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
  margin-right: 4px;
}

.page-products .biz-demo__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 18px;
}

.page-products .biz-fixtures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .biz-fixture {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--panel-700);
  border-left: 3px solid var(--cyan-400);
}

.page-products .biz-fixture__score {
  font-family: var(--font-mono);
  font-size: var(--step-17);
  color: var(--cyan-200);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.page-products .biz-fixture__meta {
  font-size: var(--step-14);
  color: var(--paper-100);
  min-width: 0;
}

.page-products .biz-fixture__meta em {
  display: block;
  font-style: normal;
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--steel-400);
  margin-top: 2px;
}

/* ---------- 追比分数据条 ---------- */
.page-products .biz-facts {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .biz-facts li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-600);
}

.page-products .biz-facts__n {
  font-family: var(--font-mono);
  font-size: var(--step-30);
  line-height: 1;
  color: var(--orange-500);
  font-variant-numeric: tabular-nums;
}

.page-products .biz-facts li span:last-child {
  font-size: var(--step-14);
  line-height: 1.75;
  color: var(--steel-400);
}

/* ---------- 导出路径 ---------- */
.page-products .biz-export {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-products .biz-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .biz-step {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding-bottom: 26px;
}

.page-products .biz-step:last-child {
  padding-bottom: 0;
}

.page-products .biz-step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan-400), var(--line-600));
}

.page-products .biz-step__n {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 2px solid var(--cyan-400);
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--step-17);
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}

.page-products .biz-step__body h3 {
  font-size: var(--step-22);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 6px;
}

.page-products .biz-step__body p {
  font-size: var(--step-14);
  line-height: 1.8;
  margin: 0;
}

.page-products .biz-export__side {
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: 20px 18px;
}

.page-products .biz-weekbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 14px;
}

.page-products .biz-weekbar span {
  font-family: var(--font-mono);
  font-size: var(--step-12);
  padding: 8px 12px;
  border: 2px solid var(--line-600);
  background: var(--ink-900);
  color: var(--steel-400);
  font-variant-numeric: tabular-nums;
}

.page-products .biz-weekbar span.is-on {
  border-color: var(--cyan-400);
  background: rgba(56, 225, 255, 0.12);
  color: var(--paper-100);
}

/* ---------- 赛季层级 ---------- */
.page-products .biz-tree {
  margin-top: 28px;
  display: grid;
  gap: 10px;
}

.page-products .biz-tree details {
  background: var(--ink-800);
  border: var(--edge);
  padding: 0;
}

.page-products .biz-tree summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
  font-size: var(--step-14);
  color: var(--paper-100);
}

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

.page-products .biz-tree summary::before {
  content: "+";
  flex: none;
  width: 16px;
  font-family: var(--font-mono);
  font-size: var(--step-17);
  line-height: 1;
  color: var(--cyan-400);
}

.page-products .biz-tree details[open] > summary::before {
  content: "−";
}

.page-products .biz-tree__lvl {
  flex: none;
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--steel-400);
  min-width: 40px;
}

.page-products .biz-tree__name {
  font-family: var(--font-display);
  font-size: var(--step-17);
  font-weight: 700;
  color: var(--paper-100);
  min-width: 0;
}

.page-products .biz-tree__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-products .biz-tree__sub {
  border: 0;
  border-top: 1px solid var(--line-600);
  margin-left: 22px;
  border-left: 2px solid var(--line-600);
}

.page-products .biz-tree__leaf {
  list-style: none;
  margin: 0;
  padding: 6px 14px 12px 32px;
  display: grid;
  gap: 8px;
}

.page-products .biz-tree__leaf li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--step-14);
  color: var(--steel-400);
  padding-left: 10px;
  border-left: 1px solid var(--line-600);
}

/* ---------- 数据链路 ---------- */
.page-products .biz-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .biz-flow__col {
  background: linear-gradient(180deg, rgba(56, 225, 255, 0.08), transparent 70%);
  border-top: 4px solid var(--cyan-400);
  padding: 16px 16px 18px;
}

.page-products .biz-flow__col:nth-child(2) {
  border-top-color: var(--cyan-500);
}

.page-products .biz-flow__col:nth-child(3) {
  border-top-color: var(--orange-500);
}

.page-products .biz-flow__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--steel-400);
  margin-bottom: 8px;
}

.page-products .biz-flow__col h3 {
  font-size: var(--step-22);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-products .biz-flow__col p {
  font-size: var(--step-14);
  line-height: 1.8;
  margin: 0;
}

.page-products .biz-support {
  margin-top: 24px;
  padding: 18px 18px 4px;
  border-left: 4px solid var(--orange-500);
  background: var(--ink-800);
}

.page-products .biz-support p {
  font-size: var(--step-14);
  line-height: 1.85;
}

/* ---------- 起步动作 ---------- */
.page-products .biz-start-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .biz-cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-products {
    --biz-gap: 24px;
  }

  .page-products .biz-hero {
    padding: 28px 0 72px;
  }

  .page-products .biz-sec {
    padding: 72px 0;
  }

  .page-products .biz-split {
    grid-template-columns: 1.02fr 0.98fr;
    gap: 32px;
  }

  .page-products .biz-split--flip {
    grid-template-columns: 0.95fr 1.05fr;
  }

  .page-products .biz-export {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 34px;
  }

  .page-products .biz-flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-products .biz-demo {
    padding: 24px 26px;
  }
}

@media (min-width: 1024px) {
  .page-products .biz-hero__inner {
    position: relative;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 44px;
    align-items: start;
  }

  .page-products .biz-hero__inner::before {
    content: "";
    position: absolute;
    left: 52%;
    top: 4%;
    bottom: 4%;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--cyan-400), transparent);
    opacity: 0.35;
    transform: rotate(9deg);
    pointer-events: none;
  }
}

@media (min-width: 1180px) {
  .page-products .biz-cap-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 460px) {
  .page-products .biz-fixture {
    grid-template-columns: auto 1fr;
  }

  .page-products .biz-fixture .tag {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .page-products .biz-defs li,
  .page-products .biz-facts li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-products .biz-facts__n {
    font-size: var(--step-22);
  }

  .page-products .biz-step {
    grid-template-columns: 40px 1fr;
    gap: 12px;
  }

  .page-products .biz-step__n {
    width: 40px;
    height: 40px;
  }

  .page-products .biz-step:not(:last-child)::before {
    left: 19px;
    top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .biz-cap {
    transition: none;
  }

  .page-products .biz-cap:hover,
  .page-products .biz-cap:focus-within {
    transform: none;
  }
}