/* ===== 业务与工具页 · page-products ===== */
.page-products {
  --prod-panel-gap: 26px;
  --prod-panel-pad: 20px;
  --prod-radius: var(--yb-r-card);
  display: block;
  background: var(--yb-deep);
  color: var(--yb-sand);
  font-family: var(--yb-font-body);
  font-size: var(--yb-fs-16);
  line-height: 1.75;
  padding-bottom: 56px;
}

.page-products .prod-top {
  padding-top: 96px;
  padding-bottom: 4px;
}

.page-products .prod-top .yb-crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--yb-fs-14);
  color: var(--yb-text-dim);
}

.page-products .prod-top .yb-crumb__link {
  color: var(--yb-text-soft);
  text-decoration: none;
}

.page-products .prod-top .yb-crumb__link:hover {
  color: var(--yb-lime);
}

.page-products .prod-top .yb-crumb__current {
  color: var(--yb-copper-lt);
}

/* ---------- 封面 ---------- */
.page-products .prod-cover {
  display: grid;
  gap: 30px;
  padding-top: 26px;
  padding-bottom: 52px;
}

.page-products .prod-cover__title {
  margin: 0 0 16px;
  font-family: var(--yb-font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 8.4vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--yb-paper);
}

.page-products .prod-cover .yb-eyebrow {
  display: block;
  margin: 0 0 14px;
  font-family: var(--yb-font-data);
  font-size: var(--yb-fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yb-copper-lt);
}

.page-products .prod-cover .yb-lede {
  margin: 0;
  max-width: 34em;
  font-size: var(--yb-fs-18);
  line-height: 1.8;
  color: var(--yb-text-soft);
}

.page-products .prod-cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--yb-line-warm);
  border-radius: var(--yb-r-glass);
  background: var(--yb-deep-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-products .prod-board__item {
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-products .prod-board__num {
  font-family: var(--yb-font-data);
  font-size: var(--yb-fs-32);
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
  color: var(--yb-lime);
}

.page-products .prod-board__label {
  font-size: var(--yb-fs-12);
  line-height: 1.55;
  color: var(--yb-text-dim);
}

/* ---------- 布局与刻度轨道 ---------- */
.page-products .yb-layout {
  display: block;
  padding-top: 8px;
}

.page-products .yb-layout__main {
  min-width: 0;
}

.page-products .yb-rail {
  display: none;
}

/* ---------- 面板基础 ---------- */
.page-products .yb-panel {
  position: relative;
  scroll-margin-top: 104px;
  padding: var(--prod-panel-pad);
  margin-bottom: var(--prod-panel-gap);
  border: 1px solid var(--yb-line);
  border-radius: var(--prod-radius);
  background: var(--yb-moss);
}

.page-products .yb-panel--charcoal {
  background: var(--yb-charcoal);
  border-color: var(--yb-line-strong);
}

.page-products .yb-panel--glass {
  background: linear-gradient(158deg, rgba(46, 93, 76, 0.52), rgba(12, 43, 37, 0.78));
  border-color: var(--yb-line-warm);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-products .yb-panel--sand {
  background: var(--yb-sand);
  border-color: rgba(19, 23, 22, 0.14);
  color: var(--yb-charcoal);
}

.page-products .yb-panel__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
  align-items: start;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--yb-line);
}

.page-products .yb-panel__num {
  grid-row: 1 / span 2;
  font-family: var(--yb-font-data);
  font-size: clamp(1.85rem, 6vw, 2.75rem);
  line-height: 0.94;
  font-variant-numeric: tabular-nums;
  color: var(--yb-copper);
}

.page-products .yb-panel__title {
  margin: 0;
  font-family: var(--yb-font-headline);
  font-weight: 700;
  font-size: clamp(1.3rem, 4.6vw, 1.75rem);
  line-height: 1.28;
  color: var(--yb-paper);
}

.page-products .yb-panel__kicker {
  margin: 0;
  font-size: var(--yb-fs-14);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--yb-text-dim);
}

.page-products .yb-panel__body {
  display: grid;
  gap: 20px;
}

.page-products .yb-panel__foot {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--yb-line);
  font-size: var(--yb-fs-14);
  line-height: 1.6;
  color: var(--yb-text-dim);
}

.page-products .yb-panel--sand .yb-panel__title {
  color: var(--yb-charcoal);
}

.page-products .yb-panel--sand .yb-panel__kicker,
.page-products .yb-panel--sand .yb-panel__foot {
  color: rgba(19, 23, 22, 0.7);
}

.page-products .yb-panel--sand .yb-panel__head {
  border-bottom-color: rgba(19, 23, 22, 0.16);
}

.page-products .yb-panel--sand .yb-panel__foot {
  border-top-color: rgba(19, 23, 22, 0.16);
}

.page-products .yb-panel--sand .yb-panel__num {
  color: var(--yb-copper);
}

/* ---------- 正文工具 ---------- */
.page-products .prod-flow {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .prod-text {
  margin: 0;
  max-width: 36em;
  font-size: var(--yb-fs-16);
  line-height: 1.8;
  color: var(--yb-text-soft);
}

.page-products .yb-panel--sand .prod-text {
  color: rgba(19, 23, 22, 0.82);
}

.page-products .prod-take {
  margin: 4px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--yb-copper);
  font-size: var(--yb-fs-16);
  line-height: 1.75;
  color: var(--yb-paper);
}

.page-products .yb-panel--sand .prod-take {
  color: var(--yb-charcoal);
}

.page-products .prod-inline-link {
  margin: 2px 0 0;
  font-size: var(--yb-fs-14);
}

.page-products .yb-link {
  color: var(--yb-copper-lt);
  text-decoration: none;
  border-bottom: 1px solid var(--yb-line-warm);
}

.page-products .yb-link:hover {
  color: var(--yb-lime);
  border-bottom-color: var(--yb-lime);
}

.page-products .yb-panel--sand .yb-link {
  color: #8C5A26;
  border-bottom-color: rgba(180, 118, 58, 0.5);
}

.page-products .yb-panel--sand .yb-link:hover {
  color: var(--yb-charcoal);
  border-bottom-color: var(--yb-charcoal);
}

/* ---------- 两栏切分 ---------- */
.page-products .prod-split {
  display: grid;
  gap: 20px;
  align-items: start;
}

/* ---------- 玻璃信息卡 ---------- */
.page-products .prod-spec {
  padding: 16px;
  border: 1px solid var(--yb-line-warm);
  border-radius: var(--yb-r-glass);
  background: rgba(12, 43, 37, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-products .prod-spec__title {
  margin: 0 0 12px;
  font-family: var(--yb-font-headline);
  font-size: var(--yb-fs-14);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--yb-copper-lt);
}

.page-products .prod-spec__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-spec__list--tight {
  gap: 9px;
}

.page-products .prod-spec__item {
  position: relative;
  padding-left: 16px;
  font-size: var(--yb-fs-14);
  line-height: 1.65;
  color: var(--yb-text-soft);
}

.page-products .prod-spec__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yb-copper);
}

.page-products .prod-spec__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--yb-line);
  font-size: var(--yb-fs-12);
  line-height: 1.6;
  color: var(--yb-text-dim);
}

.page-products .yb-panel--sand .prod-spec {
  background: rgba(246, 242, 234, 0.6);
  border-color: rgba(180, 118, 58, 0.34);
}

.page-products .yb-panel--sand .prod-spec__item {
  color: rgba(19, 23, 22, 0.82);
}

/* ---------- 可展开字段清单 ---------- */
.page-products .prod-fields {
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-r-card);
  background: rgba(46, 93, 76, 0.22);
  padding: 14px 16px;
}

.page-products .prod-fields__summary {
  cursor: pointer;
  font-family: var(--yb-font-headline);
  font-size: var(--yb-fs-14);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--yb-paper);
  list-style: none;
}

.page-products .prod-fields__summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-fields__summary::after {
  content: "＋";
  float: right;
  font-family: var(--yb-font-data);
  color: var(--yb-copper-lt);
}

.page-products .prod-fields[open] .prod-fields__summary::after {
  content: "－";
}

.page-products .prod-fields[open] .prod-fields__summary {
  margin-bottom: 12px;
}

/* ---------- 图片 ---------- */
.page-products .yb-figure {
  margin: 0;
}

.page-products .yb-figure__media {
  overflow: hidden;
  border-radius: var(--yb-r-img);
  background: linear-gradient(140deg, var(--yb-moss), var(--yb-deep));
  aspect-ratio: 16 / 9;
}

.page-products .prod-ar-2x1 .yb-figure__media {
  aspect-ratio: 2 / 1;
}

.page-products .prod-ar-4x3 .yb-figure__media {
  aspect-ratio: 4 / 3;
}

.page-products .prod-ar-4x5 .yb-figure__media {
  aspect-ratio: 4 / 5;
}

.page-products .yb-figure__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-products .yb-figure__cap {
  margin-top: 8px;
  font-size: var(--yb-fs-12);
  line-height: 1.6;
  color: var(--yb-text-dim);
}

.page-products .yb-panel--sand .yb-figure__cap {
  color: rgba(19, 23, 22, 0.68);
}

/* ---------- 轮次时间轴 ---------- */
.page-products .prod-timeline {
  display: block;
  width: 100%;
  height: auto;
  margin: 2px 0 0;
}

.page-products .prod-timeline__axis {
  stroke: var(--yb-line-strong);
  stroke-width: 1.5;
}

.page-products .prod-timeline__ticks line {
  stroke: var(--yb-rock);
  stroke-width: 1.5;
}

.page-products .prod-timeline__hot {
  fill: var(--yb-lime);
}

.page-products .prod-timeline__labels text {
  fill: rgba(228, 218, 203, 0.62);
  font-family: var(--yb-font-data);
  font-size: 13px;
}

/* ---------- 要点列表 ---------- */
.page-products .prod-facts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-facts__item {
  display: grid;
  gap: 2px;
  padding-left: 14px;
  border-left: 2px solid rgba(180, 118, 58, 0.5);
}

.page-products .prod-facts__key {
  font-family: var(--yb-font-headline);
  font-size: var(--yb-fs-14);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--yb-copper-lt);
}

.page-products .prod-facts__val {
  font-size: var(--yb-fs-14);
  line-height: 1.7;
  color: var(--yb-text-soft);
}

/* ---------- 筛选 chip ---------- */
.page-products .yb-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .yb-chip {
  font: inherit;
  font-size: var(--yb-fs-14);
  line-height: 1.4;
  padding: 7px 15px;
  border: 1px solid var(--yb-line-strong);
  border-radius: 999px;
  background: rgba(12, 43, 37, 0.5);
  color: var(--yb-text-soft);
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-products .yb-chip:hover {
  border-color: var(--yb-copper);
  color: var(--yb-paper);
}

.page-products .yb-chip[aria-pressed="true"] {
  border-color: var(--yb-copper);
  background: var(--yb-copper);
  color: var(--yb-deep);
}

/* ---------- 案例卡片 ---------- */
.page-products .prod-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.page-products .prod-case {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 16px;
  border: 1px solid var(--yb-line);
  border-radius: var(--prod-radius);
  background: rgba(46, 93, 76, 0.26);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .prod-case:hover {
  border-color: var(--yb-copper);
  background: rgba(46, 93, 76, 0.42);
}

.page-products .prod-case__tag {
  margin: 0;
  font-family: var(--yb-font-data);
  font-size: var(--yb-fs-12);
  letter-spacing: 0.08em;
  color: var(--yb-lime);
}

.page-products .prod-case__title {
  margin: 0;
  font-family: var(--yb-font-headline);
  font-size: var(--yb-fs-18);
  font-weight: 700;
  line-height: 1.45;
  color: var(--yb-paper);
}

.page-products .prod-case__text {
  margin: 0;
  font-size: var(--yb-fs-14);
  line-height: 1.7;
  color: var(--yb-text-soft);
}

.page-products .prod-case__meta {
  margin: 0;
  padding-top: 8px;
  border-top: 1px solid var(--yb-line);
  font-family: var(--yb-font-data);
  font-size: var(--yb-fs-12);
  color: var(--yb-text-dim);
}

/* ---------- 指标可视化 ---------- */
.page-products .prod-viz {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-r-card);
  background: rgba(12, 43, 37, 0.42);
}

.page-products .prod-viz__row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) 58px;
  align-items: center;
  gap: 10px;
}

.page-products .prod-viz__name {
  font-size: var(--yb-fs-12);
  line-height: 1.4;
  color: var(--yb-text-soft);
}

.page-products .prod-viz__track {
  position: relative;
  height: 12px;
  border-radius: 6px;
  background: rgba(228, 218, 203, 0.1);
}

.page-products .prod-viz__span {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 6px;
  background: rgba(127, 184, 166, 0.45);
}

.page-products .prod-viz__mid {
  position: absolute;
  top: -3px;
  bottom: -3px;
  width: 2px;
  background: var(--yb-copper);
}

.page-products .prod-viz__mark {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  border-radius: 50%;
  background: var(--yb-lime);
  box-shadow: 0 0 0 4px rgba(200, 240, 75, 0.16);
}

.page-products .prod-viz__val {
  font-family: var(--yb-font-data);
  font-size: var(--yb-fs-16);
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--yb-paper);
}

/* ---------- 场景 ---------- */
.page-products .prod-scenes {
  display: grid;
  gap: 16px;
}

.page-products .prod-scene {
  display: grid;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid rgba(180, 118, 58, 0.45);
}

.page-products .prod-scene__title {
  margin: 0;
  font-family: var(--yb-font-headline);
  font-size: var(--yb-fs-18);
  font-weight: 700;
  line-height: 1.4;
  color: var(--yb-charcoal);
}

.page-products .prod-scene__text {
  margin: 0;
  font-size: var(--yb-fs-14);
  line-height: 1.75;
  color: rgba(19, 23, 22, 0.82);
}

.page-products .prod-scene__link {
  margin: 2px 0 0;
  font-size: var(--yb-fs-14);
}

/* ---------- 结尾 ---------- */
.page-products .prod-next {
  margin-top: 12px;
  padding: 30px var(--prod-panel-pad);
  border: 1px solid var(--yb-line-warm);
  border-radius: var(--prod-radius);
  background: linear-gradient(140deg, rgba(46, 93, 76, 0.4), rgba(19, 23, 22, 0.6));
}

.page-products .prod-next__title {
  margin: 0 0 10px;
  font-family: var(--yb-font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  line-height: 1.2;
  color: var(--yb-paper);
}

.page-products .prod-next__text {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: var(--yb-fs-16);
  line-height: 1.8;
  color: var(--yb-text-soft);
}

.page-products .prod-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .prod-next__aside {
  margin: 18px 0 0;
  font-size: var(--yb-fs-14);
  color: var(--yb-text-dim);
}

/* ---------- 焦点可见 ---------- */
.page-products a:focus-visible,
.page-products button:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--yb-lime);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-products {
    --prod-panel-pad: 28px;
    --prod-panel-gap: 34px;
  }

  .page-products .prod-cover {
    padding-top: 40px;
    padding-bottom: 68px;
  }

  .page-products .prod-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .page-products .prod-split--7-5 {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .prod-split--5-7 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .prod-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-products .prod-next {
    padding: 40px 36px;
  }
}

/* ---------- 桌面：左轨 + 内容 ---------- */
@media (min-width: 960px) {
  .page-products {
    padding-bottom: 80px;
  }

  .page-products .prod-cover {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 48px;
    padding-top: 64px;
    padding-bottom: 88px;
  }

  .page-products .prod-board {
    padding: 20px;
  }

  .page-products .yb-layout {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-products .yb-rail {
    display: block;
    position: sticky;
    top: 100px;
  }

  .page-products .yb-rail__list {
    display: grid;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .page-products .yb-rail__link {
    display: grid;
    grid-template-columns: 10px auto minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-left: 2px solid transparent;
    border-radius: 8px;
    font-size: var(--yb-fs-14);
    line-height: 1.4;
    color: var(--yb-text-dim);
    text-decoration: none;
    transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
  }

  .page-products .yb-rail__link:hover,
  .page-products .yb-rail__link[data-current] {
    color: var(--yb-paper);
    background: rgba(46, 93, 76, 0.36);
    border-left-color: var(--yb-copper);
  }

  .page-products .yb-rail__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--yb-rock);
  }

  .page-products .yb-rail__link[data-current] .yb-rail__dot {
    background: var(--yb-lime);
  }

  .page-products .yb-rail__num {
    font-family: var(--yb-font-data);
    font-size: var(--yb-fs-12);
    font-variant-numeric: tabular-nums;
    color: var(--yb-copper);
  }

  .page-products .yb-panel__body {
    gap: 24px;
  }

  .page-products .prod-viz__row {
    grid-template-columns: 88px minmax(0, 1fr) 70px;
    gap: 16px;
  }

  .page-products .prod-viz__name {
    font-size: var(--yb-fs-14);
  }
}

@media (min-width: 1200px) {
  .page-products {
    --prod-panel-pad: 36px;
    --prod-panel-gap: 40px;
  }

  .page-products .prod-cover__title {
    font-size: clamp(3rem, 5vw, 4.6rem);
  }

  .page-products .yb-layout {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: 56px;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .prod-case,
  .page-products .yb-chip,
  .page-products .yb-rail__link {
    transition: none;
  }
}
<<<END>>>