/* ===== 重点案例 · 单主题纵深阅读 ===== */

.page-cases-featured {
  display: block;
}

/* 面包屑 */
.page-cases-featured .breadcrumb {
  padding-top: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.page-cases-featured .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-cases-featured .breadcrumb li + li::before {
  content: "/";
  padding-right: var(--space-1);
  color: var(--color-ink-muted);
}

.page-cases-featured .breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases-featured .breadcrumb a:hover {
  color: var(--color-focus);
  border-bottom-color: var(--color-accent);
}

/* 首屏 */
.page-cases-featured .cf-open {
  padding-top: var(--space-6);
}

.page-cases-featured .cf-open .stamp {
  display: inline-block;
  margin: 0 0 var(--space-3);
}

.page-cases-featured .cf-h1 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 24ch;
}

.page-cases-featured .cf-lede {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  border-left: calc(var(--border-thin) * 3) solid var(--color-primary);
  padding-left: var(--space-3);
}

/* 深色数据条 */
.page-cases-featured .cf-figures {
  margin-top: var(--space-6);
  padding: var(--space-4) 0;
  border-top: calc(var(--border-thin) * 3) solid var(--color-primary);
}

.page-cases-featured .cf-figures__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-2);
}

.page-cases-featured .cf-fig {
  min-width: 0;
  padding-left: var(--space-2);
  border-left: var(--border-thin) solid var(--color-contrast-line);
}

.page-cases-featured .cf-fig:first-child {
  border-left-color: var(--color-contrast-accent);
}

.page-cases-featured .cf-fig__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-contrast-ink);
}

.page-cases-featured .cf-fig__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

/* 章节骨架 */
.page-cases-featured .cf-sec {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-cases-featured .cf-h2 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-cases-featured .cf-h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-cases-featured .cf-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-cases-featured .cf-body__main,
.page-cases-featured .cf-body__rail {
  min-width: 0;
}

.page-cases-featured .cf-body__main p {
  margin: 0 0 var(--space-2);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-cases-featured .cf-body__main p:last-child {
  margin-bottom: 0;
}

.page-cases-featured .cf-intro {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-cases-featured .cf-link {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases-featured .cf-link:hover {
  border-bottom-color: var(--color-accent);
  border-bottom-width: calc(var(--border-thin) * 2);
}

/* 旁注 */
.page-cases-featured .rail-note {
  margin: 0 0 var(--space-3);
}

.page-cases-featured .rail-note p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-cases-featured .cf-note-title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink);
}

.page-cases-featured .pullquote {
  margin: var(--space-4) 0 0;
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

/* 需求条目 */
.page-cases-featured .cf-needs {
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-cases-featured .cf-need {
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-cases-featured .cf-need__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0 0 var(--space-1);
}

.page-cases-featured .cf-need__title {
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-cases-featured .cf-need__tradeoff {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.page-cases-featured .cf-jump {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
}

.page-cases-featured .cf-jump a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
}

.page-cases-featured .cf-jump a:hover {
  color: var(--color-focus);
}

/* 侧栏窄图 */
.page-cases-featured .cf-rail-figure {
  margin: 0 0 var(--space-3);
}

.page-cases-featured .cf-rail-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-cases-featured .cf-rail-figure .media__caption {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

/* 步骤 */
.page-cases-featured .cf-steps {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.page-cases-featured .cf-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  border-left: calc(var(--border-thin) * 3) solid var(--color-primary-soft);
  padding-left: var(--space-2);
}

.page-cases-featured .cf-step__idx {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-primary);
  line-height: 1.4;
}

.page-cases-featured .cf-step p {
  margin: 0;
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* 双轴图 */
.page-cases-featured .cf-axis {
  margin: 0 0 var(--space-4);
}

.page-cases-featured .cf-axis__scroll {
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  padding: var(--space-3);
  background: var(--color-surface-alt);
}

.page-cases-featured .cf-axis__scroll:focus-visible {
  outline: calc(var(--border-thin) * 2) solid var(--color-focus);
  outline-offset: var(--border-thin);
}

.page-cases-featured .cf-axis svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
  aspect-ratio: 760 / 268;
}

.page-cases-featured .cf-axis .ax-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  fill: var(--color-ink-soft);
}

.page-cases-featured .cf-axis .ax-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  fill: var(--color-ink);
  text-anchor: middle;
}

.page-cases-featured .cf-axis .ax-note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  fill: var(--color-ink-muted);
}

.page-cases-featured .cf-axis .ax-rule {
  stroke: var(--color-line);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.page-cases-featured .cf-axis .ax-block {
  stroke-width: 1;
}

.page-cases-featured .cf-axis .ax-block--train {
  fill: var(--color-primary-soft);
  stroke: var(--color-primary);
}

.page-cases-featured .cf-axis .ax-block--pre {
  fill: var(--color-surface-deep);
  stroke: var(--color-ink-muted);
}

.page-cases-featured .cf-axis .ax-block--match {
  fill: var(--color-highlight);
  stroke: var(--color-accent);
}

.page-cases-featured .cf-axis__cap {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

/* 正文图片 */
.page-cases-featured .cf-figure {
  margin: 0 0 var(--space-4);
}

.page-cases-featured .cf-figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* 检查点 */
.page-cases-featured .cf-check {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-cases-featured .cf-check__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-cases-featured .cf-check__idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

.page-cases-featured .cf-check__text {
  margin: 0;
  line-height: 1.6;
  color: var(--color-ink);
}

/* 对比栏 */
.page-cases-featured .cf-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: var(--border-thin) solid var(--color-line);
}

.page-cases-featured .cf-compare__col {
  padding: var(--space-3);
  background: var(--color-surface);
  transition: background-color 120ms linear;
}

.page-cases-featured .cf-compare__col + .cf-compare__col {
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-cases-featured .cf-compare__col p {
  margin: 0 0 var(--space-2);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-cases-featured .cf-compare__meta {
  margin: 0;
  padding: var(--space-2) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
}

.page-cases-featured .cf-compare__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.page-cases-featured .cf-compare__meta dd {
  margin: 0 0 var(--space-2);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.page-cases-featured .cf-compare__meta dd:last-child {
  margin-bottom: 0;
}

.page-cases-featured .cf-folds {
  margin-top: var(--space-3);
}

.page-cases-featured .cf-folds .fold + .fold {
  margin-top: var(--space-1);
}

.page-cases-featured .cf-folds .fold__body p {
  margin: 0;
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* 行动出口 */
.page-cases-featured .cf-exit__box {
  padding-top: var(--space-4);
  border-top: calc(var(--border-thin) * 3) solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-line);
  padding-bottom: var(--space-4);
}

.page-cases-featured .cf-exit__box p {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-cases-featured .cf-exit__acts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* 桌面与平板横屏 */
@media (min-width: 760px) {
  .page-cases-featured .cf-figures__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-cases-featured .cf-fig__num {
    font-size: var(--text-3xl);
  }

  .page-cases-featured .cf-compare__meta {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-1) var(--space-2);
    align-items: baseline;
  }

  .page-cases-featured .cf-compare__meta dt {
    margin-bottom: 0;
  }

  .page-cases-featured .cf-compare__meta dd {
    margin-bottom: var(--space-1);
  }
}

@media (min-width: 900px) {
  .page-cases-featured .cf-open {
    padding-top: var(--space-8);
  }

  .page-cases-featured .cf-h1 {
    font-size: var(--text-3xl);
  }

  .page-cases-featured .cf-h2 {
    font-size: var(--text-2xl);
  }

  .page-cases-featured .cf-sec {
    margin-top: var(--section-y);
    padding-top: var(--section-y);
  }

  .page-cases-featured .cf-body {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
  }

  .page-cases-featured .cf-body__main {
    grid-column: 1 / span 8;
  }

  .page-cases-featured .cf-body__rail {
    grid-column: 9 / -1;
  }

  .page-cases-featured .cf-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-cases-featured .cf-compare__col + .cf-compare__col {
    border-top: 0;
    border-left: var(--border-thin) dotted var(--color-line);
  }

  .page-cases-featured .cf-axis svg {
    min-width: 0;
  }
}

@media (min-width: 1280px) {
  .page-cases-featured .cf-break {
    margin-right: calc(-1 * var(--space-8));
    max-width: none;
  }
}

@media (hover: hover) {
  .page-cases-featured .cf-compare__col:hover {
    background: var(--color-surface-alt);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-cases-featured * {
    transition: none !important;
  }
}
<<<END>>>