.page-products {
  --pr-frame: 1px solid var(--yw-sand);
  --pr-radius: 2px;
  background: var(--yw-foam);
  color: var(--yw-ink);
  padding-bottom: clamp(36px, 6vw, 76px);
}

.page-products .yw-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: clamp(14px, 3vw, 22px) 0 0;
  font-size: 0.82rem;
  color: var(--yw-mist);
}

.page-products .yw-breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--yw-sand);
}

.page-products .yw-breadcrumb a {
  color: var(--yw-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .yw-breadcrumb a:hover {
  border-bottom-color: var(--yw-coral);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  padding: clamp(16px, 3vw, 30px) 0 clamp(30px, 5vw, 56px);
}

.page-products .pr-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-products .pr-hero-main .yw-display {
  margin: 0.35rem 0 0.9rem;
  font-size: clamp(2.35rem, 9vw, 4.9rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--yw-deep);
}

.page-products .pr-hero-main .yw-lede {
  max-width: 38em;
  color: var(--yw-ink);
}

.page-products .pr-hero-main .yw-actions {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-products .pr-note-line {
  margin: clamp(16px, 3vw, 24px) 0 0;
  font-size: 0.86rem;
  color: var(--yw-mist);
}

.page-products .pr-note-line .yw-mono {
  color: var(--yw-deep);
}

.page-products .pr-board {
  position: relative;
  background: var(--yw-paper);
  border: var(--pr-frame);
  padding: clamp(18px, 3vw, 28px);
  box-shadow: 10px 10px 0 -1px var(--yw-sand);
  transform: rotate(-0.6deg);
}

.page-products .pr-board-title {
  margin: 0 0 14px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--yw-deep);
  border-bottom: 2px solid var(--yw-yellow);
  display: inline-block;
  padding-bottom: 4px;
}

.page-products .pr-board-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pr-board-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--yw-sand);
}

.page-products .pr-board-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pr-board-no {
  font-size: 0.95rem;
  color: var(--yw-coral);
  letter-spacing: 0.04em;
}

.page-products .pr-board-h {
  margin: 0 0 4px;
  font-weight: 700;
  color: var(--yw-deep);
}

.page-products .pr-board-body p:last-child {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--yw-ink);
}

/* ---------- 章节骨架 ---------- */
.page-products .pr-shell {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  padding-top: clamp(8px, 2vw, 16px);
}

.page-products .pr-toc-wrap {
  border-top: 3px solid var(--yw-deep);
  padding-top: 12px;
}

.page-products .yw-toc-title {
  margin: 0 0 8px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--yw-mist);
}

.page-products .yw-toc-list {
  display: flex;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .yw-toc-link {
  display: block;
  white-space: nowrap;
  padding: 8px 12px;
  font-size: 0.86rem;
  color: var(--yw-deep);
  text-decoration: none;
  background: var(--yw-foam);
  border: 1px solid var(--yw-sand);
  border-radius: 999px;
}

.page-products .yw-toc-link:hover {
  border-color: var(--yw-coral);
}

.page-products .yw-toc-link[aria-current="true"] {
  background: var(--yw-deep);
  border-color: var(--yw-deep);
  color: var(--yw-foam);
}

.page-products .pr-content {
  min-width: 0;
}

.page-products .pr-chapter {
  padding: clamp(24px, 4vw, 44px) 0;
  border-top: 1px solid var(--yw-sand);
  scroll-margin-top: 96px;
}

.page-products .pr-chapter:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-products .pr-chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(10px, 2vw, 22px);
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-products .yw-chapter-no {
  font-family: var(--yw-font-mono);
  font-size: clamp(1.7rem, 5vw, 2.7rem);
  line-height: 1;
  color: var(--yw-yellow);
}

.page-products .yw-chapter-no::after {
  content: "";
  display: block;
  width: 1.9rem;
  height: 3px;
  margin-top: 8px;
  background: var(--yw-yellow);
}

.page-products .pr-chapter-head h2 {
  margin: 0 0 8px;
  font-size: clamp(1.42rem, 4.2vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--yw-deep);
}

.page-products .pr-chapter-lede {
  margin: 0;
  max-width: 40em;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--yw-ink);
}

/* ---------- 功能矩阵 ---------- */
.page-products .pr-matrix {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-products .pr-mod {
  background: var(--yw-foam);
  border: var(--pr-frame);
  border-radius: var(--pr-radius);
  padding: clamp(16px, 2.6vw, 24px);
  box-shadow: 0 1px 0 var(--yw-sand), 0 14px 26px -26px rgba(6, 30, 45, 0.7);
}

.page-products .pr-mod:nth-child(odd) {
  border-top: 3px solid var(--yw-deep);
}

.page-products .pr-mod:nth-child(even) {
  border-top: 3px solid var(--yw-coral);
}

.page-products .pr-mod-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.page-products .pr-mod-no {
  font-size: 1.05rem;
  color: var(--yw-mist);
}

.page-products .pr-mod h3 {
  margin: 0 0 12px;
  font-size: 1.12rem;
  color: var(--yw-deep);
}

.page-products .pr-mod-dl {
  margin: 0;
}

.page-products .pr-mod-dl dt {
  font-family: var(--yw-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--yw-green);
  margin-top: 10px;
}

.page-products .pr-mod-dl dt:first-child {
  margin-top: 0;
}

.page-products .pr-mod-dl dd {
  margin: 3px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--yw-ink);
}

/* ---------- 通用分栏与图 ---------- */
.page-products .pr-split {
  display: grid;
  gap: clamp(16px, 3vw, 30px);
}

.page-products .pr-figure {
  margin: 0;
}

.page-products .pr-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--pr-frame);
  border-radius: var(--pr-radius);
  background: var(--yw-sand);
}

.page-products .pr-figure figcaption {
  margin-top: 8px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--yw-mist);
}

/* ---------- 步骤 ---------- */
.page-products .pr-steps {
  display: grid;
  gap: 14px;
}

.page-products .pr-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--yw-foam);
  border: 1px solid var(--yw-sand);
  border-left: 5px solid var(--yw-coral);
}

.page-products .pr-step-no {
  font-size: 1.55rem;
  line-height: 1;
  color: var(--yw-coral);
}

.page-products .pr-step h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  color: var(--yw-deep);
}

.page-products .pr-step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pr-warn {
  background: var(--yw-paper);
  border-left: 5px solid var(--yw-yellow);
  padding: 16px 18px;
}

.page-products .pr-warn-label {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--yw-deep);
  font-weight: 700;
}

.page-products .pr-warn ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 7px;
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 平板要点 ---------- */
.page-products .pr-points {
  display: grid;
  gap: 14px;
}

.page-products .pr-point {
  padding: 14px 16px;
  border-left: 3px solid var(--yw-green);
  background: var(--yw-foam);
}

.page-products .pr-point h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--yw-deep);
}

.page-products .pr-point p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pr-strip-wrap {
  margin-top: clamp(18px, 3vw, 28px);
  border-top: 1px dashed var(--yw-sand);
  padding-top: 14px;
}

.page-products .pr-strip-title {
  margin: 0 0 10px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--yw-mist);
}

.page-products .pr-strip {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 2px 0 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .pr-strip > li {
  flex: 0 0 auto;
  scroll-snap-align: start;
  font-size: 0.86rem;
}

/* ---------- 数字条 ---------- */
.page-products .pr-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--yw-sand);
  border: var(--pr-frame);
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
}

.page-products .pr-stats li {
  background: var(--yw-paper);
  padding: 14px 16px;
  display: grid;
  gap: 2px;
}

.page-products .pr-stat-num {
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  line-height: 1;
  color: var(--yw-deep);
}

.page-products .pr-stat-label {
  font-size: 0.8rem;
  color: var(--yw-mist);
}

/* ---------- 案例标签说明 ---------- */
.page-products .pr-labelbox {
  background: var(--yw-paper);
  border: var(--pr-frame);
  padding: clamp(16px, 2.6vw, 24px);
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .pr-labelrow {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-products .pr-labelrow p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pr-labelbox-note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--yw-mist);
  border-top: 1px dashed var(--yw-sand);
  padding-top: 12px;
}

.page-products .pr-labelbox .yw-btn {
  display: inline-block;
}

/* ---------- 资料库 ---------- */
.page-products .pr-find h3 {
  margin: 0 0 12px;
  font-size: 1.05rem;
  color: var(--yw-deep);
}

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

.page-products .pr-find-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--yw-sand);
}

.page-products .pr-find-list .yw-mono {
  color: var(--yw-coral);
  font-size: 0.95rem;
}

.page-products .pr-find-list p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pr-copy-row {
  margin: 16px 0 0;
}

.page-products .pr-copybtn {
  cursor: pointer;
  border: 1px solid var(--yw-deep);
  background: var(--yw-foam);
  color: var(--yw-deep);
  padding: 9px 16px;
  font-size: 0.86rem;
  font-family: var(--yw-font-sans);
  border-radius: 999px;
}

.page-products .pr-copybtn:hover {
  border-color: var(--yw-coral);
  color: var(--yw-coral);
}

.page-products .pr-flow {
  display: grid;
  gap: 1px;
  background: var(--yw-sand);
  border: var(--pr-frame);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .pr-flow-step {
  background: var(--yw-foam);
  padding: 16px 18px;
}

.page-products .pr-flow-no {
  display: inline-block;
  margin-bottom: 8px;
  width: 28px;
  height: 28px;
  line-height: 26px;
  text-align: center;
  border: 1px solid var(--yw-yellow);
  border-radius: 50%;
  color: var(--yw-deep);
  font-size: 0.85rem;
}

.page-products .pr-flow-step h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--yw-deep);
}

.page-products .pr-flow-step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-products .pr-inline-link {
  margin: 16px 0 0;
  font-size: 0.9rem;
  color: var(--yw-mist);
}

.page-products .pr-inline-link a {
  color: var(--yw-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--yw-coral);
}

/* ---------- 演进与场景 ---------- */
.page-products .pr-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 2px solid var(--yw-sand);
  display: grid;
  gap: 20px;
}

.page-products .pr-timeline li {
  position: relative;
}

.page-products .pr-timeline li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 11px;
  height: 11px;
  background: var(--yw-yellow);
  border: 2px solid var(--yw-foam);
  border-radius: 50%;
}

.page-products .pr-timeline-year {
  display: block;
  color: var(--yw-coral);
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.page-products .pr-timeline h3 {
  margin: 0 0 5px;
  font-size: 1.02rem;
  color: var(--yw-deep);
}

.page-products .pr-timeline p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-products .pr-scene-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pr-scene {
  background: var(--yw-paper);
  border: 1px solid var(--yw-sand);
  padding: 14px 16px;
}

.page-products .pr-scene:nth-child(even) {
  background: var(--yw-foam);
}

.page-products .pr-scene h3 {
  margin: 0 0 6px;
  font-size: 0.98rem;
  color: var(--yw-deep);
}

.page-products .pr-scene p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ---------- 结尾行动块 ---------- */
.page-products .pr-cta {
  margin-top: clamp(24px, 4vw, 38px);
  background: var(--yw-deep);
  color: var(--yw-foam);
  border-left: 6px solid var(--yw-coral);
  padding: clamp(20px, 4vw, 36px);
  display: grid;
  gap: 14px;
}

.page-products .pr-cta h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3.6vw, 1.7rem);
  line-height: 1.3;
  color: var(--yw-foam);
}

.page-products .pr-cta p {
  margin: 0;
  max-width: 42em;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--yw-sand);
}

.page-products .pr-ghost {
  border-color: var(--yw-foam);
  color: var(--yw-foam);
  background: transparent;
}

.page-products .pr-ghost:hover {
  border-color: var(--yw-coral);
  color: var(--yw-coral);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-products .pr-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pr-matrix .pr-mod:nth-child(even) {
    transform: translateY(16px);
    margin-bottom: 16px;
  }

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

  .page-products .pr-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pr-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pr-hero-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .pr-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

  .page-products .pr-split--reverse > .pr-figure {
    order: 2;
  }

  .page-products .pr-split--wide {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
  }

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

@media (min-width: 1000px) {
  .page-products .pr-shell {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pr-toc-wrap {
    position: sticky;
    top: 104px;
    border-top: 3px solid var(--yw-deep);
    background: var(--yw-foam);
    padding-bottom: 18px;
  }

  .page-products .yw-toc-list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-products .yw-toc-list li + li {
    margin-top: 2px;
  }

  .page-products .yw-toc-link {
    white-space: normal;
    border: 0;
    border-left: 3px solid var(--yw-sand);
    border-radius: 0;
    padding: 7px 10px;
    font-size: 0.84rem;
    line-height: 1.45;
    background: transparent;
  }

  .page-products .yw-toc-link:hover {
    border-left-color: var(--yw-coral);
    background: var(--yw-paper);
  }

  .page-products .yw-toc-link[aria-current="true"] {
    background: var(--yw-paper);
    border-left-color: var(--yw-coral);
    color: var(--yw-deep);
    font-weight: 700;
  }
}

@media (min-width: 1180px) {
  .page-products .pr-board {
    transform: rotate(-1deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-board {
    transform: none;
  }

  .page-products .pr-matrix .pr-mod:nth-child(even) {
    transform: none;
  }
}