.page-products {
  --p-index: 250px;
  --p-gap: clamp(28px, 4vw, 56px);
  overflow-x: clip;
  background: var(--ink);
  color: var(--frost);
}

/* ---------- 面包屑 ---------- */
.page-products .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--muted);
}
.page-products .crumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-products .crumb a:hover,
.page-products .crumb a:focus-visible {
  color: var(--cyan);
}
.page-products .crumb__sep {
  color: var(--grid);
}
.page-products .crumb [aria-current="page"] {
  color: var(--frost);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding: clamp(30px, 4.6vw, 76px) 0 clamp(38px, 5vw, 78px);
  border-bottom: 1px solid var(--rule);
}
.page-products .cat-hero::before {
  content: "";
  position: absolute;
  top: clamp(56px, 7vw, 112px);
  bottom: clamp(38px, 5vw, 78px);
  left: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(0, 229, 255, .1));
}
.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(30px, 4.4vw, 64px);
}
.page-products .cat-hero__lead {
  padding-left: clamp(14px, 2vw, 26px);
}
.page-products .cat-hero__title {
  margin: 16px 0 0;
  font-size: var(--fs-96);
  font-weight: 200;
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--frost);
}
.page-products .cat-hero__title em {
  font-style: normal;
  color: var(--orange);
}
.page-products .cat-hero__sub {
  margin: clamp(22px, 2.8vw, 34px) 0 0;
  max-width: 36em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: var(--silver);
}
.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.2vw, 40px);
}

/* ---------- 首屏数据格 ---------- */
.page-products .cat-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule);
}
.page-products .cat-fact {
  background: var(--ink-deep);
  padding: 18px 16px 20px;
}
.page-products .cat-fact__v {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-38);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}
.page-products .cat-fact__k {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}

/* ---------- 分屏：索引 + 内容流 ---------- */
.page-products .cat-split {
  padding: clamp(44px, 6vw, 100px) 0 clamp(20px, 3vw, 40px);
}
.page-products .cat-split__grid {
  display: grid;
  gap: clamp(34px, 4.4vw, 60px);
}
.page-products .cat-index__label {
  color: var(--dim);
}
.page-products .cat-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.page-products .cat-index__list li {
  border-bottom: 1px solid var(--rule-soft);
}
.page-products .cat-index__link {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  font-size: var(--fs-15);
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-products .cat-index__link span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--grid);
  transition: color .2s var(--ease);
}
.page-products .cat-index__link:hover,
.page-products .cat-index__link:focus-visible {
  color: var(--frost);
}
.page-products .cat-index__link:hover span,
.page-products .cat-index__link:focus-visible span {
  color: var(--cyan);
}

/* ---------- 内容区块 ---------- */
.page-products .cat-block {
  scroll-margin-top: 120px;
}
.page-products .cat-block + .cat-block {
  margin-top: clamp(46px, 5.5vw, 84px);
  padding-top: clamp(46px, 5.5vw, 84px);
  border-top: 1px solid var(--rule);
}
.page-products .cat-block__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}
.page-products .cat-block__num {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .14em;
  color: var(--orange);
}
.page-products .cat-block__title {
  margin: 0;
  font-size: var(--fs-38);
  font-weight: 250;
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--frost);
}
.page-products .cat-block__lead {
  margin: clamp(20px, 2.4vw, 30px) 0 0;
  max-width: 34em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 栏目清单 ---------- */
.page-products .cat-cols {
  list-style: none;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule-soft);
}
.page-products .cat-col {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(20px, 2.4vw, 28px) 0;
  border-bottom: 1px solid var(--rule-soft);
}
.page-products .cat-col__idx {
  flex: 0 0 30px;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  color: var(--cyan);
}
.page-products .cat-col__body {
  flex: 1 1 auto;
  min-width: 0;
}
.page-products .cat-col__name {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 300;
  letter-spacing: -.01em;
  color: var(--frost);
}
.page-products .cat-col__desc {
  margin: 10px 0 0;
  max-width: 36em;
  font-size: var(--fs-15);
  line-height: 1.78;
  color: var(--silver);
}
.page-products .cat-col__fit {
  margin: 12px 0 0;
  font-size: var(--fs-13);
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 图 ---------- */
.page-products .cat-figure {
  margin: clamp(28px, 3.4vw, 44px) 0 0;
}
.page-products .cat-figure .media,
.page-products .cat-date__figure .media,
.page-products .cat-app__figure .media,
.page-products .cat-start__figure .media {
  border: 1px solid var(--rule);
  background: var(--ink-deep);
}
.page-products .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .media__cap {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--dim);
  line-height: 1.7;
}

/* ---------- 更新节奏 ---------- */
.page-products .cat-cadence {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3vw, 40px);
  background: var(--rule-soft);
  border: 1px solid var(--rule);
}
.page-products .cat-cadence__cell {
  background: var(--panel);
  padding: 20px 18px 22px;
}
.page-products .cat-cadence__v {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-38);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--orange);
}
.page-products .cat-cadence__k {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}
.page-products .cat-cadence__note {
  margin-top: clamp(22px, 2.8vw, 34px);
  max-width: 38em;
}
.page-products .cat-cadence__note p {
  margin: 0 0 16px;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--silver);
}
.page-products .cat-cadence__note p:last-child {
  margin-bottom: 0;
}

/* ---------- 费用（浅色反向区） ---------- */
.page-products .cat-fees {
  margin-top: clamp(50px, 6.5vw, 104px);
  padding: clamp(44px, 5.8vw, 96px) 0;
  background: var(--ice);
  color: var(--ink);
}
.page-products .cat-fees__grid {
  display: grid;
  gap: clamp(28px, 3.6vw, 52px);
}
.page-products .cat-fees__kicker {
  color: #5A6B85;
}
.page-products .cat-fees__title {
  margin: 14px 0 0;
  font-size: var(--fs-60);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--ink);
  max-width: 14em;
}
.page-products .cat-fees__text {
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  max-width: 34em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: #2C3D5E;
}
.page-products .cat-fees__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(10, 31, 68, .16);
  border-top: 1px solid rgba(10, 31, 68, .16);
  border-bottom: 1px solid rgba(10, 31, 68, .16);
}
.page-products .cat-fee {
  background: var(--ice);
  padding: 22px 0;
}
.page-products .cat-fee__name {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--ink);
}
.page-products .cat-fee__name::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 12px;
  vertical-align: middle;
  background: var(--orange);
}
.page-products .cat-fee__desc {
  margin: 12px 0 0 34px;
  max-width: 34em;
  font-size: var(--fs-15);
  line-height: 1.78;
  color: #2C3D5E;
}
.page-products .cat-fees__foot {
  margin: 0;
  font-size: var(--fs-13);
  line-height: 1.8;
  letter-spacing: .02em;
  color: #4A5A78;
}
.page-products .cat-fees__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-products .cat-fees__foot a:hover,
.page-products .cat-fees__foot a:focus-visible {
  color: var(--orange);
}

/* ---------- 客户端 ---------- */
.page-products .cat-app {
  padding: clamp(54px, 7vw, 112px) 0 clamp(44px, 5.5vw, 88px);
}
.page-products .cat-app__num {
  color: var(--dim);
}
.page-products .cat-app__title {
  margin: 14px 0 0;
  font-size: var(--fs-60);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--frost);
  max-width: 16em;
}
.page-products .cat-app__lead {
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  max-width: 36em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: var(--silver);
}
.page-products .cat-app__grid {
  display: grid;
  gap: clamp(28px, 3.6vw, 56px);
  margin-top: clamp(32px, 4vw, 56px);
}
.page-products .cat-app__figure {
  margin: 0;
}
.page-products .cat-app__panel {
  padding-top: 22px;
}
.page-products .cat-app__panel-title {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 300;
  letter-spacing: -.01em;
  color: var(--frost);
}
.page-products .cat-app__panel p {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: var(--fs-15);
  line-height: 1.82;
  color: var(--silver);
}

/* 客户端数据条 */
.page-products .cat-nums {
  list-style: none;
  margin: clamp(34px, 4.2vw, 60px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-soft);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.page-products .cat-num {
  background: var(--ink);
  padding: 18px 0 20px;
}
.page-products .cat-num__v {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-24);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--cyan);
}
.page-products .cat-num__k {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}

/* ---------- 按日期追比分 ---------- */
.page-products .cat-date {
  padding: clamp(48px, 6vw, 96px) 0;
  border-top: 1px solid var(--rule);
  background: var(--ink-deep);
}
.page-products .cat-date__num {
  color: var(--dim);
}
.page-products .cat-date__title {
  margin: 14px 0 0;
  font-size: var(--fs-60);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--frost);
  max-width: 16em;
}
.page-products .cat-date__lead {
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  max-width: 36em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: var(--silver);
}
.page-products .cat-date__grid {
  display: grid;
  gap: clamp(28px, 3.6vw, 52px);
  margin-top: clamp(30px, 4vw, 54px);
}
.page-products .cat-date__figure {
  margin: 0;
}
.page-products .cat-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule);
}
.page-products .cat-step {
  position: relative;
  background: var(--panel);
  padding: 26px 20px 30px;
}
.page-products .cat-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--orange);
}
.page-products .cat-step__n {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .14em;
  color: var(--cyan);
}
.page-products .cat-step__h {
  margin: 14px 0 0;
  font-size: var(--fs-24);
  font-weight: 300;
  color: var(--frost);
}
.page-products .cat-step__p {
  margin: 12px 0 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--silver);
}
.page-products .cat-date__note {
  margin: clamp(26px, 3.2vw, 44px) 0 0;
  max-width: 38em;
  padding-left: 18px;
  border-left: 2px solid rgba(0, 229, 255, .45);
  font-size: var(--fs-15);
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 开通与使用 ---------- */
.page-products .cat-start {
  padding: clamp(52px, 6.5vw, 108px) 0 clamp(56px, 7vw, 116px);
  border-top: 1px solid var(--rule);
}
.page-products .cat-start__num {
  color: var(--dim);
}
.page-products .cat-start__title {
  margin: 14px 0 0;
  font-size: var(--fs-60);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--frost);
  max-width: 16em;
}
.page-products .cat-start__intro {
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  max-width: 34em;
  font-size: var(--fs-19);
  line-height: 1.75;
  color: var(--silver);
}
.page-products .cat-start__grid {
  display: grid;
  gap: clamp(34px, 4.4vw, 64px);
}
.page-products .cat-flow {
  list-style: none;
  margin: clamp(28px, 3.4vw, 46px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.page-products .cat-flow__item {
  display: flex;
  gap: clamp(14px, 2vw, 24px);
  padding: clamp(20px, 2.4vw, 28px) 0;
  border-bottom: 1px solid var(--rule-soft);
}
.page-products .cat-flow__n {
  flex: 0 0 30px;
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .1em;
  color: var(--orange);
}
.page-products .cat-flow__body {
  flex: 1 1 auto;
  min-width: 0;
}
.page-products .cat-flow__h {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 300;
  color: var(--frost);
}
.page-products .cat-flow__body p {
  margin: 12px 0 0;
  max-width: 36em;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--silver);
}
.page-products .cat-flow__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .38);
}
.page-products .cat-flow__body a:hover,
.page-products .cat-flow__body a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-products .cat-start__aside {
  display: grid;
  gap: clamp(22px, 2.8vw, 32px);
  align-content: start;
}
.page-products .cat-start__figure {
  margin: 0;
}
.page-products .cat-start__tip {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 22px 20px 24px;
}
.page-products .cat-start__tip-k {
  margin: 0 0 10px;
  font-size: var(--fs-15);
  font-weight: 400;
  letter-spacing: .02em;
  color: var(--frost);
}
.page-products .cat-start__tip p {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--silver);
}
.page-products .cat-start__link {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-products .cat-start__link:hover,
.page-products .cat-start__link:focus-visible {
  color: var(--sand);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-products .cat-cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .cat-nums {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .cat-num {
    padding: 20px 24px 24px 0;
  }
  .page-products .cat-fees__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
  }
  .page-products .cat-fee {
    padding: 24px 28px 24px 0;
  }
  .page-products .cat-fee + .cat-fee {
    padding-left: 28px;
    border-left: 1px solid rgba(10, 31, 68, .16);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, .8fr);
    align-items: end;
  }
  .page-products .cat-fact__v {
    font-size: var(--fs-38);
  }
  .page-products .cat-app__grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .cat-date__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .cat-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .cat-start__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
    align-items: start;
  }
  .page-products .cat-nums {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .cat-num + .cat-num {
    padding-left: 24px;
    border-left: 1px solid var(--rule-soft);
  }
}

@media (min-width: 960px) {
  .page-products .cat-split__grid {
    grid-template-columns: var(--p-index) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
  }
  .page-products .cat-index {
    position: sticky;
    top: 116px;
    align-self: start;
  }
  .page-products .cat-fees__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
  .page-products .cat-fees__lead {
    grid-row: span 2;
  }
  .page-products .cat-fees__foot {
    grid-column: 2;
  }
}

@media (min-width: 1180px) {
  .page-products .cat-app__grid {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: clamp(48px, 5vw, 88px);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .cat-index__link,
  .page-products .cat-index__link span,
  .page-products .crumb a,
  .page-products .cat-start__link {
    transition: none;
  }
}