.page-products {
  --biz-gap: clamp(0.9rem, 2vw, 1.25rem);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-products .biz-hero {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3.25rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(120% 100% at 8% 0%, var(--lake-pale) 0%, rgba(217, 238, 243, 0) 62%),
    linear-gradient(180deg, var(--paper-raise) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-products .biz-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -55%;
  width: min(520px, 70vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line-lake);
  box-shadow:
    0 0 0 26px rgba(15, 110, 140, 0.05),
    0 0 0 52px rgba(15, 110, 140, 0.035),
    0 0 0 78px rgba(232, 121, 46, 0.05);
  pointer-events: none;
}

.page-products .biz-hero .kicker {
  position: relative;
  z-index: 1;
  color: var(--lake);
  letter-spacing: 0.14em;
}

.page-products .biz-hero h1 {
  position: relative;
  z-index: 1;
  margin: 0.55rem 0 0;
  font-size: clamp(1.85rem, 6vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: 0.03em;
  color: var(--lake-deep);
  max-width: 20em;
}

.page-products .biz-lede {
  position: relative;
  z-index: 1;
  margin: 0.9rem 0 0;
  max-width: 44rem;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-products .biz-shortcuts {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .biz-shortcut {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--line-lake);
  border-radius: 999px;
  background: var(--paper-raise);
  color: var(--lake-deep);
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color var(--ease), color var(--ease), background-color var(--ease);
}

.page-products .biz-shortcut .mono {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-products .biz-shortcut:hover,
.page-products .biz-shortcut:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: #fff;
}

.page-products .biz-layout {
  padding-top: clamp(1.6rem, 3vw, 2.4rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-products .biz-index {
  display: none;
}

.page-products .biz-index-title {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-products .biz-index .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-products .biz-index .index-link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color var(--ease), color var(--ease), border-color var(--ease);
}

.page-products .biz-index .index-link .mono {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-products .biz-index .index-link:hover,
.page-products .biz-index .index-link:focus-visible {
  background: var(--lake-pale);
  color: var(--lake-deep);
}

.page-products .biz-index .index-link[aria-current="true"] {
  background: var(--lake-pale);
  border-left-color: var(--orange);
  color: var(--lake-deep);
  font-weight: 600;
}

.page-products .biz-section {
  padding: clamp(1.8rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-products .biz-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .biz-head {
  display: grid;
  gap: 0.5rem;
  margin-bottom: clamp(1.1rem, 2.5vw, 1.6rem);
}

.page-products .section-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-products .section-title {
  margin: 0;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1.28;
  letter-spacing: 0.03em;
  color: var(--lake-deep);
}

.page-products .biz-text {
  margin: 0;
  max-width: 42rem;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-products .biz-mt {
  margin-top: 1.4rem;
}

.page-products .biz-sub {
  margin: 0 0 0.7rem;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  color: var(--lake-deep);
}

.page-products .biz-inline-link {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lake);
  transition: color var(--ease), border-color var(--ease);
}

.page-products .biz-inline-link:hover,
.page-products .biz-inline-link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* Bento 功能矩阵 */
.page-products .biz-bento {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--biz-gap);
}

.page-products .biz-tile {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.05rem;
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-products .biz-tile:hover,
.page-products .biz-tile:focus-within {
  border-color: var(--line-lake);
  box-shadow: var(--shadow-raise);
}

.page-products .biz-tile.is-lead {
  padding: 0 0 1.15rem;
  overflow: hidden;
  background: #fff;
  border-color: var(--line-lake);
}

.page-products .biz-tile-inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.95rem 1.05rem 0;
}

.page-products .biz-tile-k {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-products .biz-tile h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.42;
  letter-spacing: 0.02em;
  color: var(--lake-deep);
}

.page-products .biz-tile p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-products .biz-tile-link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 0.2rem;
  color: var(--lake);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-lake);
  transition: color var(--ease), border-color var(--ease);
}

.page-products .biz-tile-link:hover,
.page-products .biz-tile-link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 图片容器 */
.page-products .media-frame {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--lake-pale);
}

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

.page-products .biz-tile.is-lead .media-frame {
  border-radius: 0;
}

.page-products .media-caption {
  padding: 0.55rem 0.75rem 0.65rem;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--ink-soft);
  background: var(--paper-raise);
  border-top: 1px solid var(--line);
}

/* 步骤折叠 */
.page-products .biz-steps {
  display: grid;
  gap: 0.65rem;
}

.page-products .biz-step {
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-products .biz-step[open] {
  border-color: var(--line-lake);
  background: #fff;
}

.page-products .biz-step summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 48px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--lake-deep);
  list-style: none;
}

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

.page-products .biz-step summary .mono {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-products .biz-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--orange);
}

.page-products .biz-step[open] summary::after {
  content: "–";
}

.page-products .biz-step summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
  border-radius: var(--radius);
}

.page-products .biz-step-body {
  padding: 0 1rem 1rem;
  border-top: 1px dashed var(--line);
}

.page-products .biz-step-body p {
  margin: 0.75rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* 场景列表 */
.page-products .biz-scene-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .biz-scene-list li {
  padding: 0.75rem 0.85rem;
  background: var(--paper-raise);
  border-left: 3px solid var(--barley);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.86rem;
  line-height: 1.66;
  color: var(--ink-soft);
}

.page-products .biz-scene-list strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--moss);
  font-size: 0.9rem;
}

/* 双栏图文 */
.page-products .biz-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 1.8rem);
  align-items: start;
}

/* 自查清单 */
.page-products .biz-check-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.page-products .biz-check-list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .biz-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--barley);
  box-shadow: 0 0 0 3px rgba(108, 142, 78, 0.16);
}

.page-products .biz-check-list strong {
  color: var(--lake-deep);
}

/* 索引面板 */
.page-products .biz-panel {
  padding: 1.1rem 1.1rem 0.9rem;
  background: linear-gradient(160deg, var(--lake-deep) 0%, #0b4a5e 100%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-raise);
}

.page-products .biz-panel-head {
  margin: 0 0 0.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--lake-pale);
}

.page-products .biz-panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(246, 241, 231, 0.22);
  font-size: 0.9rem;
  color: var(--paper);
}

.page-products .biz-panel-row .mono {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-products .biz-panel-foot {
  margin: 0.8rem 0 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--lake-pale);
}

.page-products .biz-plain-list {
  display: grid;
  gap: 0.4rem;
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .biz-plain-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.6rem 0.2rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .biz-plain-list .mono {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--lake);
}

/* 客服 */
.page-products .biz-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.page-products .biz-chip-list .chip {
  border-color: var(--line-lake);
  color: var(--lake-deep);
  background: var(--paper-raise);
  font-size: 0.82rem;
}

.page-products .biz-contact {
  display: grid;
  gap: 0.15rem;
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  background: var(--lake-pale);
  border-radius: var(--radius);
  border-left: 3px solid var(--lake);
}

.page-products .biz-contact dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--lake);
}

.page-products .biz-contact dd {
  margin: 0 0 0.55rem;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--lake-deep);
  word-break: break-word;
}

.page-products .biz-contact dd:last-child {
  margin-bottom: 0;
}

/* 版本时间线 */
.page-products .biz-banner {
  margin-bottom: 1.3rem;
  border-radius: var(--radius);
}

.page-products .biz-timeline {
  margin: 1.1rem 0 0;
  padding: 0 0 0 1.15rem;
  list-style: none;
  border-left: 1px solid var(--line-strong);
  display: grid;
  gap: 0.95rem;
}

.page-products .biz-timeline li {
  position: relative;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-products .biz-timeline li::before {
  content: "";
  position: absolute;
  left: calc(-1.15rem - 4.5px);
  top: 0.5em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px var(--paper);
}

.page-products .biz-timeline strong {
  display: inline-block;
  margin-right: 0.4rem;
  color: var(--lake-deep);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.page-products .biz-timeline + .biz-text {
  margin-top: 1.1rem;
}

/* 结尾行动区 */
.page-products .biz-cta {
  display: grid;
  gap: 1.1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  background: linear-gradient(125deg, var(--lake-deep) 0%, var(--lake) 100%);
  border-radius: var(--radius-lg);
  color: var(--paper);
}

.page-products .biz-cta .kicker {
  color: var(--orange);
  letter-spacing: 0.16em;
}

.page-products .biz-cta h2 {
  margin: 0.35rem 0 0.5rem;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: #fff;
}

.page-products .biz-cta p {
  margin: 0;
  max-width: 36rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--lake-pale);
}

.page-products .biz-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-products .biz-cta .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background-color var(--ease), color var(--ease), border-color var(--ease);
}

.page-products .biz-cta .btn-primary {
  background: var(--orange);
  border: 1px solid var(--orange);
  color: #fff;
}

.page-products .biz-cta .btn-primary:hover,
.page-products .biz-cta .btn-primary:focus-visible {
  background: #d96a20;
  border-color: #d96a20;
}

.page-products .biz-cta .btn-ghost {
  background: transparent;
  border: 1px solid rgba(246, 241, 231, 0.45);
  color: var(--paper);
}

.page-products .biz-cta .btn-ghost:hover,
.page-products .biz-cta .btn-ghost:focus-visible {
  border-color: #fff;
  color: #fff;
  background: rgba(246, 241, 231, 0.12);
}

.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

@media (min-width: 860px) {
  .page-products .biz-layout {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 2.6rem);
  }

  .page-products .biz-index {
    display: block;
    position: sticky;
    top: 92px;
    align-self: start;
    padding-top: 0.35rem;
  }

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

  .page-products .biz-tile.is-lead {
    grid-column: span 2;
    grid-row: span 2;
  }

  .page-products .biz-tile.is-lead .media-frame {
    flex: 0 0 auto;
  }

  .page-products .biz-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 1.9rem;
  }

  .page-products .biz-split.is-reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

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

  .page-products .biz-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .biz-cta-actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .biz-tile,
  .page-products .biz-shortcut,
  .page-products .biz-tile-link,
  .page-products .biz-inline-link,
  .page-products .biz-step,
  .page-products .biz-index .index-link {
    transition: none;
  }
}
<<<END>>>