/* ===== 业务中心 / page-products ===== */
.page-products {
  --prod-accent-collect: var(--indigo);
  --prod-accent-compare: var(--burgundy);
  --prod-accent-archive: var(--amber);
  --prod-accent-channel: var(--channel);
}

/* --- 首屏 --- */
.page-products .prod-hero {
  padding-top: clamp(26px, 5vw, 52px);
}
.page-products .prod-hero__top {
  max-width: 70ch;
}
.page-products .prod-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--sand);
  margin: .34em 0 .42em;
  max-width: 22ch;
}
.page-products .prod-hero__lede {
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.9;
  color: var(--silver);
  max-width: 62ch;
}

/* --- 四列仪表板 --- */
.page-products .prod-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(26px, 4.5vw, 48px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .prod-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 238px;
  padding: 24px 22px 26px;
  background: var(--panel);
  transition: background .3s ease, box-shadow .3s ease;
}
.page-products .prod-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--line-strong);
  transition: background .3s ease;
}
.page-products .prod-card--collect::before { background: var(--prod-accent-collect); }
.page-products .prod-card--compare::before { background: var(--prod-accent-compare); }
.page-products .prod-card--archive::before { background: var(--prod-accent-archive); }
.page-products .prod-card--channel::before { background: var(--prod-accent-channel); }
.page-products .prod-card .card__index {
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--silver);
}
.page-products .prod-card .card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.3;
  color: var(--sand);
  margin: 0;
}
.page-products .prod-card .card__text {
  font-size: 14px;
  line-height: 1.82;
  color: var(--silver);
  margin: 0;
}
.page-products .prod-card__who {
  font-size: 13px;
  line-height: 1.75;
  color: var(--silver);
  margin: 0;
  padding-left: 12px;
  border-left: 1px solid var(--line-strong);
  opacity: .82;
  transition: opacity .3s ease, border-color .3s ease;
}
.page-products .prod-card__meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--cyan);
}
.page-products .prod-card:hover {
  background: #172d45;
  box-shadow: var(--shadow);
}
.page-products .prod-card:hover .prod-card__who {
  opacity: 1;
  border-color: var(--cyan);
}

/* --- 双栏：左侧固定入口路径 + 右侧滚动细节 --- */
.page-products .biz-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
}
.page-products .biz-rail__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.35;
  color: var(--sand);
  margin: .5em 0 1.2em;
}
.page-products .biz-path {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products .biz-path__node {
  position: relative;
  padding: 0 0 22px 36px;
}
.page-products .biz-path__node::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.page-products .biz-path__node:last-child {
  padding-bottom: 0;
}
.page-products .biz-path__node:last-child::before {
  display: none;
}
.page-products .biz-path__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--amber);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
}
.page-products .biz-path__label {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--sand);
}
.page-products .biz-path__desc {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver);
}
.page-products .biz-rail__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.8;
  color: var(--silver);
}

/* --- 右侧业务细节块 --- */
.page-products .biz-block {
  padding: clamp(20px, 3vw, 32px);
  background: var(--panel);
  border: 1px solid var(--line);
}
.page-products .biz-block + .biz-block {
  margin-top: clamp(20px, 3vw, 30px);
}
.page-products .biz-block--burgundy {
  background: linear-gradient(180deg, rgba(107, 31, 58, .42), rgba(20, 41, 63, .94));
}
.page-products .biz-block__head {
  margin-bottom: 16px;
}
.page-products .biz-block__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.32;
  color: var(--sand);
  margin: .45em 0 0;
}
.page-products .biz-block p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--silver);
  margin: 0 0 1.1em;
}
.page-products .biz-block > p:last-child {
  margin-bottom: 0;
}
.page-products .biz-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 30px);
}
.page-products .biz-split__body p:last-child {
  margin-bottom: 0;
}
.page-products .biz-list {
  list-style: none;
  margin: 0 0 1.1em;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .biz-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}
.page-products .biz-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--amber);
}
.page-products .biz-list strong {
  color: var(--sand);
  font-weight: 600;
}
.page-products .biz-note {
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  color: var(--sand) !important;
  font-size: 14.5px !important;
}

/* --- 版本对照两侧面板 --- */
.page-products .biz-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 4px 0 1.2em;
}
.page-products .biz-compare__pane {
  background: var(--ink);
  padding: 18px 18px 20px;
}
.page-products .biz-compare__tag {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--amber);
}
.page-products .biz-compare__pane:last-child .biz-compare__tag {
  color: var(--cyan);
}
.page-products .biz-compare__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

/* --- 旧版本资料取用 --- */
.page-products .prod-archive {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 42px);
  align-items: start;
}
.page-products .prod-archive__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.28;
  color: var(--sand);
  margin: .45em 0 .7em;
  max-width: 20ch;
}
.page-products .prod-archive__intro p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--silver);
  margin: 0 0 1.1em;
}
.page-products .prod-archive__intro p:last-child {
  margin-bottom: 0;
}
.page-products .prod-filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(24px, 3.4vw, 42px);
}
.page-products .prod-filter {
  background: rgba(10, 26, 47, .62);
  padding: 18px 18px 22px;
}
.page-products .prod-filter__k {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-products .prod-filter__t {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--sand);
}
.page-products .prod-filter__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--silver);
}
.page-products .prod-data-list {
  margin-top: clamp(24px, 3.4vw, 40px);
}

/* --- 移动端通道 --- */
.page-products .prod-mobile {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
  align-items: start;
}
.page-products .prod-mobile__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.28;
  color: var(--sand);
  margin: .45em 0 .7em;
  max-width: 20ch;
}
.page-products .prod-mobile__body p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--silver);
  margin: 0 0 1.1em;
}
.page-products .prod-mobile__body p:last-child {
  margin-bottom: 0;
}

/* --- 规模数据 --- */
.page-products .prod-scale__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.32;
  color: var(--sand);
  margin: .45em 0 clamp(20px, 3vw, 34px);
  max-width: 26ch;
}
.page-products .prod-scale .stat {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.page-products .prod-scale__note {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--silver);
  max-width: 72ch;
}

/* --- 步骤条 --- */
.page-products .prod-steps__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.32;
  color: var(--sand);
  margin: .45em 0 clamp(20px, 3vw, 34px);
}
.page-products .prod-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  counter-reset: prodstep;
}
.page-products .prod-step {
  position: relative;
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
}
.page-products .prod-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: -3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}
.page-products .prod-step__idx {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--amber);
}
.page-products .prod-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--sand);
}
.page-products .prod-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* --- 收束 CTA --- */
.page-products .prod-cta {
  margin-top: clamp(30px, 4vw, 52px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
}
.page-products .prod-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
  max-width: 68ch;
}
.page-products .prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- 图片通用约束 --- */
.page-products .figure {
  margin: 0;
}
.page-products .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .figure__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products .prod-filters {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .biz-compare {
    grid-template-columns: 1fr 1fr;
  }
  .page-products .prod-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 26px 28px;
  }
}

@media (min-width: 760px) {
  .page-products .biz-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
  .page-products .prod-archive {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  }
  .page-products .prod-mobile {
    grid-template-columns: minmax(0, .55fr) minmax(0, 1.45fr);
  }
  .page-products .prod-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-products .prod-board {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products .biz-layout {
    grid-template-columns: minmax(258px, 320px) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .biz-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
  .page-products .prod-mobile {
    grid-template-columns: minmax(0, .48fr) minmax(0, 1.52fr);
  }
}

@media (min-width: 1100px) {
  .page-products .prod-board {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-products .prod-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }
}

@media (max-width: 420px) {
  .page-products .prod-card {
    min-height: 0;
  }
  .page-products .prod-cta__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-card,
  .page-products .prod-card__who {
    transition: none;
  }
}
<<<END>>>