/* ============================================================
   CASE STUDY — 板块库
   作品详情页共用样式。依赖 style.css 的字体与色彩变量。
   注意：html 根字号为 13.28px，本文件统一使用 px / clamp(px)
        以避免换算歧义。
   ============================================================ */

.case-page {
  --cs-paper:     #FBFBF4;
  --cs-paper-2:   #F2EFE7;
  --cs-paper-3:   #E4E0D6;
  --cs-ink:       #020202;
  --cs-ink-2:     #3A3733;
  --cs-ink-3:     #75706A;
  --cs-accent:    #FF852D;
  /* 强调色的 rgb 分量单独存一份，供 rgb(var(--cs-accent-rgb) / A) 调透明度用。
     不要在板块里写死 rgba(255,133,45,…)，否则整页换色时改不动。 */
  --cs-accent-rgb: 255 133 45;
  /* 浅底上压强调色文字时用这个更深的版本：强调色本身压在自己的浅色底上
     对比度只有 2 点几，不够看。 */
  --cs-accent-deep: #A84A12;
  /* 深底（首屏 / 计数条）上压强调色文字时用这个更亮的版本。
     橙色本身在黑底上就有 7:1，所以默认等于强调色本身；
     红色不行——#E60012 压在 #020202 上只有 4.35:1，字会发闷。 */
  --cs-accent-lift: var(--cs-accent);
  --cs-hair:      rgba(2, 2, 2, 0.11);
  --cs-hair-dark: rgba(251, 251, 244, 0.14);
  --cs-max:       1240px;
}

/* 《昂楷视界》内刊案例：整页换成期刊自己的主色（规范里的 #E60012 / #222222）。
   刊物本身就带一套色彩规范，详情页用它自己的颜色讲它自己的事。
   撤销只需去掉 body 上的 is-vision。 */
.case-page.is-vision {
  --cs-accent:      #E60012;
  --cs-accent-rgb:  230 0 18;
  --cs-accent-deep: #A8000D;
  --cs-accent-lift: #FF3B47;   /* 黑底上约 5.8:1 */
}

/* 全局 img 规则是 cover + 100% 高，详情页的图需要按原比例显示 */
.case-page img {
  height: auto;
  object-fit: contain;
}

/* ────────────────────────────────────────
   页内导航（左侧固定目录）
   由 case.js 依据正文板块自动生成，只在正文区间显示。
   可用宽度取决于「正文容器居中后剩下的左侧空白」，
   空间不够时退化为只显示序号、hover 再展开标题。
──────────────────────────────────────── */
.cs-toc {
  position: fixed;
  left: 20px;
  top: 132px;               /* 顶部锚定：留出固定导航的高度 */
  z-index: 60;
  display: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility .45s var(--ease);
}
.cs-toc.is-visible { opacity: 1; visibility: visible; }

.cs-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.cs-toc a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 0 7px 12px;
  border-left: 2px solid var(--cs-hair);
  font-family: var(--f-cjk);
  font-size: 14.5px;
  line-height: 1.35;
  color: var(--cs-ink-3);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.cs-toc a i {
  font-style: normal;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cs-paper-3);
  flex: 0 0 auto;
  width: 17px;
  transition: color .3s var(--ease);
}
.cs-toc a:hover { color: var(--cs-ink); border-left-color: var(--cs-ink-3); }
.cs-toc a:hover i { color: var(--cs-ink-3); }
.cs-toc li.is-active a {
  color: var(--cs-ink);
  font-weight: 600;
  border-left-color: var(--cs-accent);
}
.cs-toc li.is-active a i { color: var(--cs-accent); }

/* ≥1024 才出现。默认只显示序号、hover 展开为浮层；
   空间够时由 JS 加上 .is-wide 让标题常显——用实测空隙判定，
   而不是写死断点，这样正文容器宽度再调也不用回来改这里。 */
@media (min-width: 1024px) {
  .cs-toc {
    display: block;
    padding: 8px;
    border-radius: 8px;
    transition: opacity .45s var(--ease), visibility .45s var(--ease),
                background .3s var(--ease), box-shadow .3s var(--ease);
  }
  .cs-toc a span { display: none; }
  .cs-toc:hover,
  .cs-toc:focus-within {
    background: var(--cs-paper);
    box-shadow: 0 10px 34px rgba(2,2,2,0.12);
  }
  .cs-toc:hover a span,
  .cs-toc:focus-within a span { display: inline; white-space: nowrap; }

  .cs-toc.is-wide { padding: 0; width: 122px; }
  .cs-toc.is-wide a span { display: inline; }
  .cs-toc.is-wide:hover,
  .cs-toc.is-wide:focus-within { background: none; box-shadow: none; }
}

/* ────────────────────────────────────────
   通用：段落容器 / 编号 / 标题
──────────────────────────────────────── */
.cs-section {
  max-width: var(--cs-max);
  margin: 0 auto;
  /* 章节之间只用间距分隔，不画发丝线。没有线之后间距要相应收窄：
     原来上下各 96px（合 192px）是为了配合分隔线，现在会空出一大块。 */
  padding: clamp(40px, 4.4vw, 62px) var(--gutter);
}

.cs-num {
  font-family: var(--f-body);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cs-ink-3);
  margin: 0 0 10px;
}
.cs-title {
  font-family: var(--f-cjk);
  font-size: clamp(27.5px, 3.4vw, 44px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--cs-ink);
  margin: 0 0 8px;
  /* 不设 max-width。20em 在 44px 下只有 880px，容器却有 1240px——
     标题会在右边还空着 360px 的时候就折行，看起来像被硬断开的。 */
}
.cs-title em {
  font-style: normal;
  color: var(--cs-accent);
}
.cs-lede {
  font-family: var(--f-cjk);
  font-size: clamp(18.5px, 1.4vw, 20.5px);
  line-height: 1.85;
  color: var(--cs-ink-2);
  margin: 18px 0 0;
}
.cs-sub {
  font-family: var(--f-cjk);
  font-size: 17.5px;
  font-weight: 600;
  color: var(--cs-ink);
  margin: 40px 0 16px;
}

/* 浅色段落的正文默认色 */
.cs-body { background: var(--cs-paper); color: var(--cs-ink); }
.cs-body p { color: var(--cs-ink-2); }

/* ────────────────────────────────────────
   HERO（深色）
──────────────────────────────────────── */
.cs-hero {
  background: var(--cs-ink);
  padding: clamp(120px, 14vw, 190px) var(--gutter) 0;
  position: relative;
  overflow: hidden;
}
.cs-hero-glow {
  position: absolute;
  left: 50%; top: -20%;
  width: 90vw; height: 70vh;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgb(var(--cs-accent-rgb) / 0.16), transparent 68%);
  pointer-events: none;
}
.cs-hero-inner {
  max-width: var(--cs-max);
  margin: 0 auto;
  position: relative;
}
.cs-eyebrow {
  font-family: var(--f-body);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cs-accent-lift);
  margin: 0 0 22px;
}
.cs-hero-title {
  font-family: var(--f-cjk);
  font-size: clamp(33.5px, 5.4vw, 68px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--cs-paper);
  margin: 0 0 22px;
}
.cs-hero-title em {
  font-style: normal;
  color: var(--cs-accent-lift);
}
.cs-hero-sub {
  font-family: var(--f-cjk);
  font-size: clamp(17.5px, 1.4vw, 20px);
  line-height: 1.85;
  color: rgba(251,251,244,0.66);
  margin: 0 0 30px;
}
.cs-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.cs-tag {
  font-family: var(--f-cjk);
  font-size: 14px;
  padding: 6px 14px;
  border: 1px solid var(--cs-hair-dark);
  border-radius: 100px;
  color: rgba(251,251,244,0.72);
}

/* HERO META（角色 / 时间 / 交付） */
.cs-hero-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--cs-hair-dark);
}
.cs-hero-meta dt {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(251,251,244,0.38);
  margin-bottom: 7px;
}
.cs-hero-meta dd {
  font-family: var(--f-cjk);
  font-size: 17px;
  color: rgba(251,251,244,0.82);
  margin: 0;
  line-height: 1.5;
}

/* ────────────────────────────────────────
   单页墙 — 双轨反向滚动
──────────────────────────────────────── */
.cs-wall {
  background: var(--cs-ink);
  padding: clamp(48px, 6vw, 78px) 0 0;
  position: relative;
}
.cs-wall-rows { display: flex; flex-direction: column; gap: 16px; }
.cs-wall-row {
  display: flex;
  width: max-content;
  gap: 16px;
  will-change: transform;
}
.cs-wall-row[data-dir="left"]  { animation: cs-wall-left  64s linear infinite; }
.cs-wall-row[data-dir="right"] { animation: cs-wall-right 64s linear infinite; }
.cs-wall:hover .cs-wall-row { animation-play-state: paused; }

@keyframes cs-wall-left  { from { transform: translate3d(0,0,0); }     to { transform: translate3d(-50%,0,0); } }
@keyframes cs-wall-right { from { transform: translate3d(-50%,0,0); }  to { transform: translate3d(0,0,0); } }

/* 左右边缘渐隐，避免宽屏露白（沿用首页 AI 轨道的做法） */
.cs-wall-mask {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 84%, transparent 100%);
          mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 84%, transparent 100%);
}

.cs-sheet {
  flex: 0 0 auto;
  width: clamp(132px, 13vw, 186px);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
  background: #fff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.4), 0 14px 34px rgba(0,0,0,0.34);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
  cursor: zoom-in;
  display: block;
}
/* aspect-ratio 必须写死：缩略图是 lazy 的，没有它则图片加载前高度为 0，
   单页墙第二排会整排塌成一条线；而 0 高度的 lazy 图 Chrome 又永远不会去加载，
   于是死锁在「只有一排」。同时它还保证首屏之后的页面高度从一开始就是最终值，
   ScrollTrigger 测出来的位置不会因为图片陆续到货而失效。 */
.cs-sheet img { width: 100%; display: block; aspect-ratio: 420 / 543; }
.cs-sheet:hover {
  transform: translateY(-10px) scale(1.045);
  box-shadow: 0 6px 12px rgba(0,0,0,0.45), 0 26px 56px rgba(0,0,0,0.5);
  z-index: 3;
}
.cs-sheet-label {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 22px 10px 9px;
  background: linear-gradient(to top, rgba(2,2,2,0.9), transparent);
  font-family: var(--f-cjk);
  font-size: 13px;
  line-height: 1.35;
  color: #fff;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.cs-sheet:hover .cs-sheet-label { opacity: 1; transform: translateY(0); }
.cs-sheet-label b { display: block; font-weight: 600; }
.cs-sheet-label span {
  display: block;
  margin-top: 2px;
  color: rgba(255,255,255,0.62);
  font-size: var(--fs-xs);
}
/* 产品主色细条，坐实“色彩编码” */
.cs-sheet::after {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: var(--sheet-c, transparent);
  z-index: 2;
}

/* ────────────────────────────────────────
   HERO 计数条（深色，紧接单页墙）
──────────────────────────────────────── */
.cs-metrics {
  background: var(--cs-ink);
  padding: clamp(46px, 5.5vw, 74px) var(--gutter) clamp(52px, 6vw, 84px);
}
.cs-metrics-inner {
  max-width: var(--cs-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cs-metric-n {
  font-family: var(--f-heading);
  font-size: clamp(40px, 4.6vw, 62px);
  line-height: 1;
  color: var(--cs-accent-lift);
}
.cs-metric-n small {
  font-family: var(--f-cjk);
  font-size: 0.32em;
  color: rgba(251,251,244,0.55);
  margin-left: 5px;
  letter-spacing: 0.04em;
}
.cs-metric-l {
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.55;
  color: rgba(251,251,244,0.55);
  margin-top: 9px;
}

/* ────────────────────────────────────────
   数字 / 卡片 / 提问
──────────────────────────────────────── */
.cs-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(30px, 5vw, 68px);
  margin: 34px 0 40px;
}
.cs-stat-n {
  font-family: var(--f-heading);
  font-size: clamp(35.5px, 4vw, 52px);
  line-height: 1;
  color: var(--cs-ink);
}
.cs-stat-n small {
  font-family: var(--f-cjk);
  font-size: 0.34em;
  color: var(--cs-ink-3);
  margin-left: 4px;
}
.cs-stat-l {
  font-family: var(--f-cjk);
  font-size: 16px;
  color: var(--cs-ink-3);
  margin-top: 8px;
  line-height: 1.55;
}

.cs-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 34px;
}
.cs-card {
  padding: 26px;
  background: var(--cs-paper-2);
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
}
.cs-card-label {
  display: block;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-accent);
  margin-bottom: 12px;
}
.cs-card-text {
  font-family: var(--f-cjk);
  font-size: 17px;
  line-height: 1.8;
  color: var(--cs-ink-2);
  margin: 0;
}

.cs-question {
  padding: 30px 36px;
  border-left: 2px solid var(--cs-accent);
  background: var(--cs-paper-2);
  border-radius: 0 6px 6px 0;
  font-family: var(--f-cjk);
  font-size: clamp(19px, 2vw, 26px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--cs-ink);
}

/* 深色引言块 */
.cs-quote-dark {
  padding: 30px 34px;
  background: var(--cs-ink);
  color: var(--cs-paper);
  border-radius: 6px;
  font-family: var(--f-cjk);
  font-size: clamp(17.5px, 1.5vw, 20px);
  line-height: 1.85;
  margin: 32px 0 0;
}
.cs-quote-dark em { font-style: normal; color: var(--cs-accent); }

/* 浅色引言块 —— 一个详情页只需要一处黑色强调，其余收束型引言用这个。
   注意：强调色不能直接用 --cs-accent，橙字压在橙色浅底上对比度不足，
   改用更深的 var(--cs-accent-deep)（对比度约 5:1）。 */
.cs-quote-soft {
  padding: 30px 34px;
  background: rgb(var(--cs-accent-rgb) / 0.07);
  border-radius: clamp(14px, 1.4vw, 18px);
  box-shadow: inset 0 1.5px 0 0 rgba(255, 255, 255, 0.6);
  font-family: var(--f-cjk);
  font-size: clamp(17.5px, 1.5vw, 20px);
  line-height: 1.85;
  color: var(--cs-ink-2);
  margin: 32px 0 0;
}
.cs-quote-soft em {
  font-style: normal;
  font-weight: 600;
  color: var(--cs-accent-deep);
}

/* ────────────────────────────────────────
   跨部门汇聚图
──────────────────────────────────────── */
.cs-hub {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 190px;
  margin: 34px 0 0;
  align-items: start;
}
.cs-hub-svg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  overflow: visible;
  pointer-events: none;
}
.cs-hub-svg path {
  fill: none;
  stroke: var(--cs-accent);
  stroke-width: 1;
  opacity: 0.5;
}
.cs-hub-node {
  padding: 18px 20px;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  background: var(--cs-paper);
  position: relative;
  z-index: 1;
}
.cs-hub-node h4 {
  font-family: var(--f-cjk);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--cs-ink);
}
.cs-hub-node p {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--cs-ink-3);
  margin: 0;
}
.cs-hub-core {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 128px; height: 128px;
  border-radius: 50%;
  background: var(--cs-ink);
  color: var(--cs-paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 3px;
}
.cs-hub-core b {
  font-family: var(--f-cjk);
  font-size: 17.5px;
  font-weight: 600;
}
.cs-hub-core span {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cs-accent);
}

/* ────────────────────────────────────────
   两栏对照（传统 vs 我的方案）
──────────────────────────────────────── */
.cs-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  margin: 22px 0;
}
.cs-compare-col + .cs-compare-col { border-left: 1px solid var(--cs-hair); }
.cs-compare-head {
  padding: 14px 22px;
  font-family: var(--f-cjk);
  font-size: 14px;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--cs-hair);
  background: var(--cs-paper-2);
  color: var(--cs-ink-3);
}
.cs-compare-col.is-mine .cs-compare-head {
  background: var(--cs-accent);
  color: #fff;
}
.cs-compare-row {
  padding: 15px 22px;
  border-bottom: 1px solid var(--cs-hair);
}
.cs-compare-row:last-child { border-bottom: none; }
.cs-compare-k {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--cs-ink-3);
  margin-bottom: 5px;
}
.cs-compare-v {
  font-family: var(--f-cjk);
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--cs-ink-2);
}
.cs-compare-col.is-mine .cs-compare-v { color: var(--cs-ink); }
.cs-gain {
  display: inline-block;
  margin-top: 9px;
  padding: 4px 11px;
  border-radius: 100px;
  background: rgb(var(--cs-accent-rgb) / 0.12);
  color: var(--cs-accent-deep);
  font-family: var(--f-cjk);
  font-size: 13.5px;
}

/* ────────────────────────────────────────
   痛点 → 解法（.cs-shift）
   替代 .cs-compare 的表格式对照。两栏不是对等关系：
   左栏（问题）弱——灰、圆点清单、收尾一句引文；
   右栏（挑战）强——关键词用主色，其余交给留白。
   层级靠色阶和字重建立，不用竖条、不用格子。
──────────────────────────────────────── */
.cs-shift {
  display: grid;
  /* 等宽两栏：两个表头是同级的表头，宽度不一致会看出来。
     列间距为 0，让它们连成一条通栏色带（和 02 的对照表头一致）；
     正文两栏的间距改由左栏 padding-right 撑出来，不用 column-gap。 */
  grid-template-columns: 1fr 1fr;
  column-gap: 0;
  row-gap: 0;
  align-items: start;
  margin: 30px 0 8px;
}
.cs-shift-body { padding-top: 8px; }
.cs-shift-body:first-of-type { padding-right: clamp(28px, 4vw, 64px); }

/* 两个表头。字号字重与清单里的关键词同级——它们是这一段的骨架，
   不该比正文还小。常驻底色，不依赖 hover：鼠标不在这里时也要立得住。
   配色沿用 02 对照表头那一套——弱的一侧用纸底灰字，重的一侧用主色实底
   白字，全页保持同一种「主 / 次」表达。 */
.cs-shift-label {
  font-family: var(--f-cjk);
  font-size: var(--fs-md);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cs-ink-3);
  background: var(--cs-paper-2);
  padding: 12px 14px;
}
.cs-shift-label.is-mine {
  color: #fff;
  background: var(--cs-accent);
}
/* 圆角按位置判定，不按 is-mine——主色一侧可能在左（02）也可能在右（01）。 */
.cs-shift-label:first-of-type  { border-radius: 4px 0 0 4px; }
.cs-shift-label:nth-of-type(2) { border-radius: 0 4px 4px 0; }

/* 单句说明（左右任一栏都可用）。内边距与清单行对齐。 */
.cs-shift-text {
  padding: 14px;
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.72;
  color: var(--cs-ink);
}

/* 左栏：问题清单 */
.cs-shift-flaws {
  list-style: none;
  margin: 0;
  padding: 2px 14px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cs-shift-flaws li {
  position: relative;
  padding-left: 18px;
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--cs-ink-2);
}
.cs-shift-flaws li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cs-ink-3);
}

/* 关键词 + 说明的清单。关键词只靠颜色区分，字号字重与说明文字一致。
   --kw 是关键词列宽：默认放得下三个字，四个字的用 .is-wide。 */
.cs-shift-goals { list-style: none; margin: 0; padding: 0; --kw: 68px; }
.cs-shift-goals.is-wide { --kw: 82px; }
.cs-shift-goals li {
  display: grid;
  grid-template-columns: var(--kw) 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 14px;
  border-bottom: 1px solid var(--cs-hair);
  border-radius: 4px;
  transition: background .3s ease;
}
.cs-shift-goals li:last-child { border-bottom: none; }
.cs-shift-goals li:hover { background: rgb(var(--cs-accent-rgb) / 0.05); }
.cs-shift-goals b {
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--cs-accent-deep);
}
.cs-shift-goals span {
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.72;
  color: var(--cs-ink);
}
/* 次要一侧：关键词转灰、说明降一档、hover 底色转中性，
   与灰底表头配成一套。 */
.cs-shift-goals.is-muted b { color: var(--cs-ink-3); }
.cs-shift-goals.is-muted span { color: var(--cs-ink-2); }
.cs-shift-goals.is-muted li:hover { background: rgb(2 2 2 / 0.035); }

.cs-review-paths {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cs-review-paths li {
  position: relative;
  padding-left: 16px;
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.72;
  color: var(--cs-ink);
}
.cs-review-paths li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgb(var(--cs-accent-rgb) / 0.68);
}

/* ────────────────────────────────────────
   01 / 战略诊断
   不把问题归结为表面样式，而是把刊物作为企业内容产品来审视：
   先拆出系统断点，再给出一一对应的行动路径。
──────────────────────────────────────── */
.case-page.is-vision .cs-strategy {
  margin-top: clamp(42px, 5vw, 68px);
  border-top: 0;
}
.case-page.is-vision .cs-strategy-head {
  display: grid;
  grid-template-columns: minmax(180px, .64fr) minmax(0, 1.36fr);
  gap: clamp(34px, 6vw, 86px);
  align-items: start;
  padding: clamp(32px, 4vw, 52px) 0;
}
.case-page.is-vision .cs-strategy-kicker {
  margin: 0;
  font-family: var(--f-cjk);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .06em;
  color: var(--cs-accent-deep);
}
.case-page.is-vision .cs-strategy-kicker span {
  display: block;
  margin-top: 5px;
  font-family: var(--f-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cs-ink-3);
}
.case-page.is-vision .cs-strategy-head h3,
.case-page.is-vision .cs-strategy-brief-intro h3 {
  margin: 0;
  max-width: 19em;
  font-family: var(--f-cjk);
  font-size: clamp(24px, 2.55vw, 34px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--cs-ink);
}
.case-page.is-vision .cs-strategy-head h3 + p,
.case-page.is-vision .cs-strategy-brief-intro h3 + p {
  margin: 14px 0 0;
  max-width: 46em;
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.75;
  color: var(--cs-ink-2);
}
.case-page.is-vision .cs-strategy-diagnosis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.case-page.is-vision .cs-strategy-card {
  position: relative;
  min-height: 300px;
  padding: clamp(22px, 2.6vw, 34px);
  display: flex;
  flex-direction: column;
  background: transparent;
  border-right: 1px solid var(--cs-hair);
  transition: background .35s var(--ease);
}
.case-page.is-vision .cs-strategy-card:last-child { border-right: 0; }
.case-page.is-vision .cs-strategy-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--cs-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease);
}
.case-page.is-vision .cs-strategy-card:hover { background: transparent; }
.case-page.is-vision .cs-strategy-card:hover::before { transform: scaleX(0); }
.case-page.is-vision .cs-strategy-card header {
  display: flex;
  align-items: baseline;
  gap: 11px;
  margin-bottom: 26px;
}
.case-page.is-vision .cs-strategy-card header span,
.case-page.is-vision .cs-strategy-pillar > span {
  flex: 0 0 auto;
  font-family: var(--f-body);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cs-accent-deep);
}
.case-page.is-vision .cs-strategy-card h4,
.case-page.is-vision .cs-strategy-pillar h4 {
  margin: 0;
  font-family: var(--f-cjk);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--cs-ink);
}
.case-page.is-vision .cs-strategy-card > p {
  margin: 0;
  font-family: var(--f-cjk);
  font-size: 15px;
  line-height: 1.75;
  color: var(--cs-ink-2);
}
.case-page.is-vision .cs-strategy-card strong {
  margin-top: auto;
  padding-top: 24px;
  font-family: var(--f-cjk);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cs-ink);
}
.case-page.is-vision .cs-strategy-card strong::before {
  content: '后果';
  display: block;
  margin-bottom: 6px;
  font-family: var(--f-body);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--cs-ink-3);
}
.case-page.is-vision .cs-strategy-brief {
  display: grid;
  grid-template-columns: minmax(260px, .82fr) minmax(0, 1.18fr);
  margin-top: clamp(50px, 6vw, 78px);
  border-radius: 0;
  background: transparent;
  overflow: visible;
}
.case-page.is-vision .cs-strategy-brief-intro {
  padding: clamp(30px, 4vw, 54px);
}
.case-page.is-vision .cs-strategy-brief-intro h3 { margin-top: 46px; }
.case-page.is-vision .cs-strategy-path { border-left: 0; }
.case-page.is-vision .cs-strategy-pillar {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 18px;
  padding: 24px clamp(24px, 3vw, 38px);
  border-bottom: 1px solid var(--cs-hair);
  transition: background .3s var(--ease);
}
.case-page.is-vision .cs-strategy-pillar:last-child { border-bottom: 0; }
.case-page.is-vision .cs-strategy-pillar:hover { background: rgb(255 255 255 / .42); }
.case-page.is-vision .cs-strategy-pillar p {
  margin: 6px 0 0;
  font-family: var(--f-cjk);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--cs-ink-2);
}
.case-page.is-vision .cs-strategy-result {
  display: grid;
  grid-template-columns: minmax(100px, .34fr) minmax(0, 1.66fr);
  gap: clamp(24px, 4vw, 58px);
  align-items: baseline;
  margin: 0;
  padding: clamp(28px, 3vw, 40px) 0 0;
  font-family: var(--f-cjk);
  font-size: clamp(18px, 1.75vw, 23px);
  line-height: 1.6;
  color: var(--cs-ink);
}
.case-page.is-vision .cs-strategy-result span {
  font-family: var(--f-body);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cs-accent-deep);
}

@media (max-width: 980px) and (min-width: 769px) {
  .case-page.is-vision .cs-strategy-diagnosis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-page.is-vision .cs-strategy-card:nth-child(2) { border-right: 0; }
  .case-page.is-vision .cs-strategy-card:nth-child(-n+2) { border-bottom: 1px solid var(--cs-hair); }
}

/* ────────────────────────────────────────
   礼盒开启（.cs-reveal）
   视频进度绑定滚轮：钉住区块，把滚动距离换算成 currentTime。
   滚多快动多快，往回滚就反着关上。视频是全关键帧编码的，
   逐帧 seek 才不会卡（见 HANDOFF「滚动绑定视频」）。
──────────────────────────────────────── */
.cs-reveal-scroll {
  position: relative;
  width: 100%;
  background: var(--cs-paper);
}
.cs-reveal-scroll.is-mobile-scrub {
  height: var(--reveal-track-height, 340svh);
}
.cs-reveal-scroll.is-mobile-scrub.is-reduced { height: 100svh; }
.cs-reveal-scroll.is-mobile-scrub > .cs-reveal {
  position: sticky;
  top: 0;
  min-height: 0;
  background: #f4f0e7;
}
.cs-reveal-scroll.is-mobile-scrub.is-reduced > .cs-reveal { position: relative; }
.cs-reveal-scroll.is-mobile-scrub .cs-reveal-video {
  object-fit: cover;
  object-position: center;
}
.cs-reveal {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 620px;
  padding: 0;
  overflow: hidden;
  background: var(--cs-paper);
}
.cs-reveal-video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  background: var(--cs-paper-2);
}
.cs-reveal::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 22%;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgb(251 251 244 / 0.22));
}
.cs-reveal-cap {
  position: absolute;
  left: 50%;
  bottom: clamp(28px, 3vw, 44px);
  transform: translateX(-50%);
  text-align: center;
  pointer-events: none;
  z-index: 1;
  transition: opacity .5s var(--ease);
}
.cs-reveal.is-open .cs-reveal-cap { opacity: 0; }
.cs-reveal.is-reduced .cs-reveal-cap { display: none; }
.cs-reveal-k {
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  color: var(--cs-ink-3);
  margin: 0 0 6px;
}
.cs-reveal-t {
  font-family: var(--f-cjk);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--cs-ink);
  margin: 0;
}

/* ────────────────────────────────────────
   横向面板组（.cs-deck）
   把区块钉在视口，纵向滚动换算成横向位移：五张面板从左到右依次推过，
   走完最后一张才把滚动还给页面。桌面端专用；窄屏退回纵向堆叠。
   用它来合并「同一主题下的多个小节」，比拆成四个纵向小节更有节奏。
──────────────────────────────────────── */
.cs-deck {
  /* 底部不留 padding：钉住后由 pin-spacer 接管间距，
     留了会把面板挤出视口下缘。 */
  padding: clamp(30px, 3.2vw, 46px) 0 0;
  overflow: hidden;
}
.cs-deck-head {
  max-width: var(--cs-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.cs-deck-head .cs-lede { margin-bottom: 0; }

.cs-deck-steps {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 30px;
  margin: 18px 0 0;
  padding: 0;
}
.cs-deck-step {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  color: var(--cs-ink-3);
  transition: color .35s var(--ease);
}
.cs-deck-step i {
  font-style: normal;
  font-family: var(--f-body);
  letter-spacing: 0.06em;
}
.cs-deck-step.is-on { color: var(--cs-accent-deep); }

.cs-deck-rail {
  position: relative;
  height: 2px;
  border-radius: 2px;
  background: var(--cs-hair);
  margin: 11px 0 0;
}
.cs-deck-rail b {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: 2px;
  background: var(--cs-accent);
}

/* 轨道外面这层不动，遮罩加在它身上：面板滑出左缘时渐隐，
   不会硬邦邦地压在左侧目录上；往回滚会原样渐显回来。 */
.cs-deck-view {
  /* 可见区左缘 = 正文容器的左缘（容器居中后 + gutter），和轨道的
     padding-left 用同一个表达式。左侧目录就贴在这条线外面，所以
     这条线以左必须是全透明的，不能只是「淡一点」。 */
  --deck-edge: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  overflow: visible;
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0,
    transparent calc(var(--deck-edge) - 56px),
    #000 var(--deck-edge),
    #000 calc(100% - 48px),
    transparent 100%);
  mask-image: linear-gradient(
    to right,
    transparent 0,
    transparent calc(var(--deck-edge) - 56px),
    #000 var(--deck-edge),
    #000 calc(100% - 48px),
    transparent 100%);
}
.cs-deck-track {
  display: flex;
  align-items: stretch;
  gap: clamp(20px, 2.2vw, 34px);
  width: max-content;
  /* 左内边距要对齐正文容器的左缘（容器居中 + gutter），
     否则第一张面板会比上面的标题更靠左。 */
  padding: 22px var(--gutter) 0 max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  will-change: transform;
}
.cs-panel {
  flex: 0 0 min(920px, 76vw);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(22px, 2.6vw, 40px);
  align-items: center;
  padding: clamp(22px, 2.4vw, 34px);
  background: var(--cs-paper-2);
  border-radius: 10px;
}
.cs-panel.is-wide { flex-basis: min(1060px, 86vw); }
/* 纯文字面板：没有图，单栏、窄一点，别把一句话摊成一整屏 */
.cs-panel.is-solo {
  grid-template-columns: minmax(0, 1fr);
  flex-basis: min(720px, 68vw);
}
.cs-panel.is-solo .cs-panel-txt { align-self: center; }
.cs-panel.is-solo .cs-stats { margin: 14px 0 16px; gap: clamp(20px, 3vw, 40px); }
.cs-panel.is-solo .cs-stat-n { font-size: clamp(30px, 3.4vw, 42px); }
.cs-panel .cs-shift { margin: 14px 0; }
/* 面板里的对照块整体收一档，面板高度要卡在视口以内 */
.cs-panel .cs-shift-label { padding: 10px 12px; font-size: var(--fs-base); margin-bottom: 4px; }
.cs-panel .cs-shift-goals li { padding: 10px 12px; }
.cs-panel .cs-shift-goals b,
.cs-panel .cs-shift-goals span { font-size: var(--fs-sm); }
.cs-panel .cs-quote-soft { margin: 12px 0 0; font-size: var(--fs-sm); }

/* 关键词换行排的变体：说明较长时，关键词单独占一行 */
.cs-specs-mini.is-block li { grid-template-columns: 1fr; gap: 4px; padding: 10px 0; }
.cs-specs-mini.is-block b { font-size: var(--fs-base); color: var(--cs-ink); font-weight: 600; }

/* 面板里的图统一压到视口高度以内——反正点开能放大，
   没必要在页面上占掉一屏。 */
.cs-panel-fig { min-width: 0; }
.cs-panel-fig .cs-figure { margin: 0; }
.cs-panel-fig .cs-figure img { max-height: 42vh; object-fit: contain; background: var(--cs-paper); }
.cs-panel-fig.is-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.cs-panel-fig.is-pair .cs-figure img { max-height: 42vh; }
.cs-panel-fig .cs-tocmap { grid-template-columns: 1fr; margin: 0; }
.cs-panel-fig .cs-tocmap-fig img { max-height: 44vh; object-fit: contain; }
.cs-panel-fig .cs-pagedemo { margin: 0; }
/* 面板里的页码演示：文字已经搬到右栏，这里只留纸张本身，
   高度压到视口以内，别把整组面板顶高。 */
.cs-panel-fig .cs-pd-wrap { display: block; }
.cs-panel-fig .cs-pd-stage {
  width: min(100%, 300px);
  height: auto;
  aspect-ratio: 3 / 4;
  margin: 0 auto;
}
.cs-panel-fig .cs-pd-ctrl { justify-content: center; margin-top: 14px; }

.cs-panel-txt { min-width: 0; }
.cs-panel-txt h3 {
  font-family: var(--f-cjk);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--cs-ink);
  margin: 0 0 12px;
  line-height: 1.35;
}
.cs-panel-txt p {
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.78;
  color: var(--cs-ink-2);
  margin: 0 0 12px;
}
.cs-panel-txt p:last-child { margin-bottom: 0; }
.cs-panel-txt strong { color: var(--cs-ink); font-weight: 600; }

/* 推导链：一行小字，用箭头串起来 */
.cs-chain {
  font-size: var(--fs-sm) !important;
  color: var(--cs-ink-3) !important;
  line-height: 1.9 !important;
  padding: 11px 14px;
  border-radius: 6px;
  background: var(--cs-paper);
}

/* 面板里的规范清单：关键词 + 一行说明，比卡片省地方 */
.cs-specs-mini { list-style: none; margin: 14px 0 0; padding: 0; }
.cs-specs-mini li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 7px 0;
  border-bottom: 1px solid var(--cs-hair);
}
.cs-specs-mini li:last-child { border-bottom: none; }
.cs-specs-mini b {
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--cs-accent-deep);
}
.cs-specs-mini span {
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--cs-ink-2);
}
.cs-specs-mini span i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: -1px;
}

/* 面板里的印章：跟着滚动自动在阳刻／阴刻之间翻转，不需要点 */
.cs-seal.is-inline {
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin: 16px 0 0;
  padding: 14px;
  border-radius: 8px;
  background: var(--cs-paper);
}
.cs-seal.is-inline .cs-seal-stage { padding: 12%; border-radius: 8px; }
.cs-seal.is-inline p { font-size: var(--fs-sm); line-height: 1.7; color: var(--cs-ink-2); margin: 0; }
.cs-seal-now {
  font-family: var(--f-cjk);
  font-size: var(--fs-sm) !important;
  font-weight: 600;
  color: var(--cs-accent-deep) !important;
  margin: 0 0 5px !important;
}

/* 面板里的三级优先级：竖排、收紧内边距，去掉外层横滑壳 */
.cs-panel-txt .cs-prios {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}
.cs-panel-txt .cs-prio { padding: 11px 14px; gap: 12px; }
.cs-panel-txt .cs-prio h4 { margin-bottom: 3px; }
.cs-panel-txt .cs-prio p { font-size: var(--fs-sm); line-height: 1.6; margin: 0; }

/* 面板头的大标题比常规小节小一档：它上面还压着导航，
   用 2xl 会把面板挤出视口。 */
.cs-deck-head .cs-title { font-size: var(--fs-xl); }

/* ────────────────────────────────────────
   竖向时间轴（.cs-line）
   一条主线随滚动从上往下描出来，走到哪一节哪个圆点亮。
   适合「一关一关往下走」的流程，比横向推移安静，也不占额外滚动。
──────────────────────────────────────── */
.cs-line {
  position: relative;
  margin-top: 30px;
  padding-left: 46px;
}
.cs-line-rail {
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: var(--cs-hair);
}
.cs-line-rail b {
  position: absolute;
  inset: 0 0 auto 0;
  height: 0;
  border-radius: 2px;
  background: var(--cs-accent);
}
.cs-line-item { position: relative; padding: 0 0 clamp(34px, 5vh, 58px); }
.cs-line-item:last-child { padding-bottom: 0; }
.cs-line-dot {
  position: absolute;
  left: -42px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--cs-paper-3);
  background: var(--cs-paper);
  transition: border-color .4s var(--ease), background .4s var(--ease), transform .4s var(--ease);
}
.cs-line-item.is-on .cs-line-dot {
  border-color: var(--cs-accent);
  background: var(--cs-accent);
  transform: scale(1.18);
}
.cs-line-k {
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  color: var(--cs-ink-3);
  margin: 0 0 6px;
  transition: color .4s var(--ease);
}
.cs-line-item.is-on .cs-line-k { color: var(--cs-accent-deep); }
.cs-line-body h3 {
  font-family: var(--f-cjk);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--cs-ink);
  margin: 0 0 12px;
  line-height: 1.35;
}
.cs-line-body p {
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  line-height: 1.78;
  color: var(--cs-ink-2);
  margin: 0 0 12px;
}
.cs-line-body p:last-child { margin-bottom: 0; }
.cs-line-body strong { color: var(--cs-ink); font-weight: 600; }
.cs-line-body .cs-plates.is-two { margin: 14px 0; max-width: 520px; }
.cs-line-body .cs-stats { margin: 16px 0 0; }
.cs-line-body .cs-shift { margin: 14px 0; }
.cs-line-body .cs-quote-soft { font-size: var(--fs-sm); margin: 12px 0 0; }

/* ────────────────────────────────────────
   版面小样一排（.cs-plates）
   一排等宽的书页缩略图，点开放大。用来替代「大图 + 缩略图切换」那种
   看板式控件：读者要的是一眼看到这一组长什么样，不是逐张切。
──────────────────────────────────────── */
.cs-plates.is-two { grid-template-columns: 1fr 1fr; margin-top: 0; }
.cs-plates.is-two .cs-plate img { aspect-ratio: 4 / 3; }
.cs-plates {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(10px, 1.2vw, 16px);
  margin-top: 22px;
}
.cs-plate {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  text-align: left;
  cursor: zoom-in;
  font: inherit;
}
.cs-plate img {
  width: 100%;
  display: block;
  aspect-ratio: 923 / 1217;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--cs-hair);
  background: var(--cs-paper);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.cs-plate:hover img {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(2, 2, 2, 0.13);
}
.cs-plate b {
  display: block;
  margin: 11px 0 3px;
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--cs-ink);
}
.cs-plate small {
  display: block;
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  line-height: 1.55;
  color: var(--cs-ink-3);
}

/* ────────────────────────────────────────
   多面受众（.cs-facets）
   一排等宽格子，衬线大序号 + 标题 + 一句说明。
   用在「同一件东西，要对 N 类人说话」这种并列关系上；
   它不是对照（那用 .cs-shift），所以不分主次、不上底色。
──────────────────────────────────────── */
.cs-facets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--cs-hair);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 22px;
}
.cs-facet { padding: 30px 26px 32px; }
.cs-facet + .cs-facet { border-left: 1px solid var(--cs-hair); }
.cs-facet-n {
  font-family: var(--f-heading);
  font-size: 38px;
  line-height: 1;
  /* 序号是节奏，不是信息：主色压到四成，别跟标题抢。 */
  color: rgb(var(--cs-accent-rgb) / 0.42);
  margin-bottom: 20px;
}
.cs-facet h4 {
  font-family: var(--f-cjk);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--cs-ink);
  margin: 0 0 10px;
}
/* 中英并置的能力名：英文用衬线显示体另起一行，是名字的一部分，
   不是装饰性眉标——所以不用主色、不做大写字距。 */
.cs-facet-en {
  display: block;
  margin-top: 3px;
  font-family: var(--f-heading);
  font-size: var(--fs-md);
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--cs-ink-3);
}
.cs-facet p {
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--cs-ink-2);
  margin: 0;
}

/* 移动端会把下一章节标题放进卡片的固定舞台，桌面仍显示原章节标题。 */
.cs-audience-stage { display: contents; }
.cs-mobile-pin-preview { display: none; }

/* ────────────────────────────────────────
   区块填写法（PPT 协作）
──────────────────────────────────────── */
.cs-blocks { display: flex; flex-direction: column; gap: 9px; }
.cs-block {
  padding: 11px 14px;
  border: 1px dashed var(--cs-paper-3);
  border-radius: 5px;
}
.cs-block.is-filled {
  border-style: solid;
  border-color: rgb(var(--cs-accent-rgb) / 0.5);
  background: rgb(var(--cs-accent-rgb) / 0.05);
}
.cs-block-k {
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cs-accent);
  margin-bottom: 4px;
}
.cs-block-v {
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.65;
  color: var(--cs-ink-2);
}

/* ────────────────────────────────────────
   制度 / 成员 / 阶段
──────────────────────────────────────── */
.cs-inst {
  padding: clamp(24px, 3vw, 34px);
  background: var(--cs-paper-2);
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  margin: 34px 0 0;
}
.cs-inst-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.cs-inst-title {
  font-family: var(--f-cjk);
  font-size: clamp(18.5px, 1.8vw, 22.5px);
  font-weight: 600;
  margin: 0;
  color: var(--cs-ink);
}
.cs-badge {
  padding: 5px 13px;
  background: var(--cs-ink);
  color: var(--cs-paper);
  border-radius: 100px;
  font-family: var(--f-cjk);
  font-size: 13px;
  white-space: nowrap;
}
.cs-members { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.cs-member {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px 5px 5px;
  background: var(--cs-paper);
  border: 1px solid var(--cs-hair);
  border-radius: 100px;
  font-family: var(--f-cjk);
  font-size: 15.5px;
  color: var(--cs-ink-2);
}
.cs-member i {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--cs-ink-3);
  color: #fff;
  font-style: normal;
  font-size: var(--fs-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cs-member.is-me i { background: var(--cs-accent); }
.cs-member.is-me { border-color: rgb(var(--cs-accent-rgb) / 0.45); }

.cs-stages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 20px;
  background: var(--cs-paper);
}
.cs-stage { padding: 22px; }
.cs-stage + .cs-stage { border-left: 1px solid var(--cs-hair); }
.cs-stage-n {
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  color: var(--cs-accent);
  margin-bottom: 8px;
}
.cs-stage h4 {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--cs-ink);
}
.cs-stage ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.cs-stage li {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--cs-ink-3);
  padding-left: 13px;
  position: relative;
}
.cs-stage li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 6px; height: 1px;
  background: var(--cs-accent);
}

.cs-note {
  padding: 13px 17px;
  background: rgb(var(--cs-accent-rgb) / 0.07);
  border-left: 2px solid var(--cs-accent);
  border-radius: 0 5px 5px 0;
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.75;
  color: var(--cs-ink-2);
  margin: 20px 0 0;
}
.cs-note b { color: var(--cs-ink); font-weight: 600; }

/* ────────────────────────────────────────
   文件凭证（叠放 → 点击放大）
──────────────────────────────────────── */
.cs-docs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.cs-doc {
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  background: var(--cs-paper);
  text-align: left;
  width: 100%;
  padding: 0;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.cs-doc:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(2,2,2,0.1); }
.cs-doc-fig {
  aspect-ratio: 4 / 3;
  background: var(--cs-paper-2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.cs-doc-fig img { width: 100%; height: 100%; object-fit: cover; }
.cs-doc-empty {
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
  text-align: center;
  padding: 20px;
  line-height: 1.7;
}
.cs-doc-empty svg { margin: 0 auto 10px; display: block; opacity: 0.35; }
.cs-doc-cap {
  padding: 13px 16px;
  text-align: center;
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--cs-ink-2);
  border-top: 1px solid var(--cs-hair);
}
.cs-doc-cap b { display: block; font-weight: 600; color: var(--cs-ink); margin-bottom: 2px; }

/* 会议纪要 */
.cs-minutes {
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 24px;
}
.cs-minutes-head {
  padding: 14px 20px;
  background: var(--cs-ink);
  color: var(--cs-paper);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--f-cjk);
  font-size: 15.5px;
}
.cs-minutes-head span { color: rgba(251,251,244,0.5); font-size: 14px; }
.cs-minutes-body { padding: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.cs-minutes-prod h5 {
  font-family: var(--f-cjk);
  font-size: 15px;
  font-weight: 600;
  color: var(--cs-accent);
  margin: 0 0 8px;
}
.cs-minutes-prod ol { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 5px; }
.cs-minutes-prod li {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--cs-ink-2);
  padding-left: 26px;
  position: relative;
}
.cs-minutes-prod li::before {
  content: attr(data-n);
  position: absolute;
  left: 0;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  color: var(--cs-ink-3);
}

/* ────────────────────────────────────────
   翻面演示
──────────────────────────────────────── */
.cs-flip-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(28px, 4.5vw, 64px);
  align-items: center;
  margin: 34px 0 0;
}
.cs-flip {
  perspective: 1600px;
  width: 100%;
  max-width: 400px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  pointer-events: none;
}
.cs-flip-inner {
  position: relative;
  transform-style: preserve-3d;
  aspect-ratio: 210 / 297;
  will-change: transform;
}

/* ============================================================
   产品单页系列：手机端阅读规范
   与《昂楷视界》共用 64px 章节节奏、自然文档流和轻量交互，
   但保留产品体系自己的橙色识别与色彩切换。
   ============================================================ */
@media (max-width: 768px) {
  .case-page.is-product-sheets .cs-eyebrow { display: none; }

  .case-page.is-product-sheets .cs-body {
    --ps-section-gap: 64px;
    --ps-content-gap: 28px;
  }

  /* 首屏只保留定位、标题与一句项目说明，避免黑色区域拖过两屏。 */
  .case-page.is-product-sheets .cs-hero {
    padding: 116px var(--gutter) 48px;
  }
  .case-page.is-product-sheets .cs-hero-glow {
    width: 130vw;
    height: 460px;
    top: -80px;
  }
  .case-page.is-product-sheets .cs-eyebrow {
    margin-bottom: 20px;
    font-size: 11px;
    letter-spacing: .16em;
  }
  .case-page.is-product-sheets .cs-hero-title {
    margin-bottom: 18px;
    font-size: 30px;
    line-height: 1.22;
  }
  .case-page.is-product-sheets .cs-hero-title em { color: var(--cs-accent-lift); }
  .case-page.is-product-sheets .cs-desktop-break { display: none; }
  .case-page.is-product-sheets .cs-hero-sub {
    margin: 0;
    font-size: 15px;
    line-height: 1.72;
  }
  .case-page.is-product-sheets .cs-tags,
  .case-page.is-product-sheets .cs-hero-meta { display: none; }

  /* 单页墙是产品索引，不再用两排厚重卡片抢首屏。 */
  .case-page.is-product-sheets .cs-wall { padding: 4px 0 28px; }
  .case-page.is-product-sheets .cs-wall-rows { gap: 0; }
  .case-page.is-product-sheets .cs-wall-row:nth-child(2) { display: none; }
  .case-page.is-product-sheets .cs-wall-row { gap: 9px; }
  .case-page.is-product-sheets .cs-wall-row[data-dir="left"] { animation-duration: 52s; }
  .case-page.is-product-sheets .cs-wall-mask {
    -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
            mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  }
  .case-page.is-product-sheets .cs-wall .cs-sheet {
    width: 112px;
    border-radius: 2px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .24);
  }
  .case-page.is-product-sheets .cs-wall .cs-sheet-label { display: none; }

  .case-page.is-product-sheets .cs-metrics { padding: 26px var(--gutter) 48px; }
  .case-page.is-product-sheets .cs-metrics-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 18px;
  }
  .case-page.is-product-sheets .cs-metric-n { font-size: 34px; }
  .case-page.is-product-sheets .cs-metric-l {
    margin-top: 7px;
    font-size: 12.5px;
    line-height: 1.55;
  }

  /* 所有章节共用一套标题、正文和垂直间距。 */
  .case-page.is-product-sheets .cs-body > .cs-section {
    padding-top: var(--ps-section-gap);
    padding-bottom: 0;
  }
  .case-page.is-product-sheets .cs-body > .cs-section:last-child { padding-bottom: var(--ps-section-gap); }
  .case-page.is-product-sheets .cs-num { display: none; }
  .case-page.is-product-sheets .cs-title {
    margin: 0;
    font-size: 24px;
    line-height: 1.3;
  }
  .case-page.is-product-sheets .cs-title em {
    display: block;
    color: var(--cs-accent-deep);
  }
  .case-page.is-product-sheets .cs-lede {
    margin-top: 14px;
    font-size: 15.5px;
    line-height: 1.72;
  }
  .case-page.is-product-sheets .cs-sub {
    margin: 40px 0 0;
    font-size: 17px;
    line-height: 1.45;
  }
  .case-page.is-product-sheets .hscroll-dots { display: none !important; }

  /* 数据与背景直接排在纸面上，不再横滑或套卡片。 */
  .case-page.is-product-sheets .cs-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: var(--ps-content-gap) 0 32px;
  }
  .case-page.is-product-sheets .cs-stat-n { font-size: 29px; }
  .case-page.is-product-sheets .cs-stat-l {
    margin-top: 7px;
    font-size: 12.5px;
    line-height: 1.5;
  }
  .case-page.is-product-sheets .cs-cards {
    grid-template-columns: 1fr;
    gap: 0;
    margin: 0;
  }
  .case-page.is-product-sheets .cs-card {
    padding: 20px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-card:first-child { padding-top: 0; }
  .case-page.is-product-sheets .cs-card:last-child { border-bottom: 0; }
  .case-page.is-product-sheets .cs-card-label { margin-bottom: 8px; }
  .case-page.is-product-sheets .cs-card-text { font-size: 14px; line-height: 1.68; }
  .case-page.is-product-sheets .cs-question {
    margin: 28px 0 0;
    padding: 24px 0 0;
    border: 0;
    border-top: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
    font-size: 18px !important;
    line-height: 1.62;
  }

  /* 协作关系改成一个信息汇聚点加四条职责，不做节点卡片。 */
  .case-page.is-product-sheets .cs-hub {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-hub-svg { display: none; }
  .case-page.is-product-sheets .cs-hub-core {
    position: static;
    order: -1;
    width: auto;
    height: auto;
    transform: none;
    align-items: flex-start;
    padding: 0 0 20px;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
    color: var(--cs-ink);
    text-align: left;
  }
  .case-page.is-product-sheets .cs-hub-core b { font-size: 18px; }
  .case-page.is-product-sheets .cs-hub-core span { margin-top: 3px; }
  .case-page.is-product-sheets .cs-hub-node {
    padding: 18px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-hub-node h4 { margin-bottom: 5px; font-size: 16px; }
  .case-page.is-product-sheets .cs-hub-node p { font-size: 14px; line-height: 1.62; }
  .case-page.is-product-sheets .cs-quote-dark,
  .case-page.is-product-sheets .cs-quote-soft {
    margin-top: 32px;
    padding: 0 0 0 18px;
    border-left: 2px solid var(--cs-accent);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--cs-ink-2);
    font-size: 16px;
    line-height: 1.72;
  }
  .case-page.is-product-sheets .cs-quote-dark em { color: var(--cs-accent-deep); }

  /* 两栏比较拆成两段，标题与条目共用同一条基线。 */
  .case-page.is-product-sheets .cs-compare {
    grid-template-columns: 1fr;
    gap: 32px;
    margin: var(--ps-content-gap) 0 0;
    border: 0;
    border-radius: 0;
    overflow: visible;
  }
  .case-page.is-product-sheets .cs-compare-col + .cs-compare-col { border: 0; }
  .case-page.is-product-sheets .cs-compare-head,
  .case-page.is-product-sheets .cs-compare-col.is-mine .cs-compare-head {
    padding: 0 0 11px;
    border-bottom: 1px solid var(--cs-hair);
    background: transparent;
    color: var(--cs-ink);
    font-size: 15px;
    font-weight: 600;
  }
  .case-page.is-product-sheets .cs-compare-col.is-mine .cs-compare-head { color: var(--cs-accent-deep); }
  .case-page.is-product-sheets .cs-compare-row { padding: 12px 0; }
  .case-page.is-product-sheets .cs-compare-k { margin-bottom: 4px; }
  .case-page.is-product-sheets .cs-compare-v { font-size: 14px; line-height: 1.62; }
  .case-page.is-product-sheets .cs-blocks { gap: 0; }
  .case-page.is-product-sheets .cs-block,
  .case-page.is-product-sheets .cs-block.is-filled {
    padding: 11px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
  }

  /* 制度文件与阶段都回归自然文档流。 */
  .case-page.is-product-sheets .cs-inst {
    margin-top: var(--ps-content-gap);
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-inst-head { display: block; margin-bottom: 20px; }
  .case-page.is-product-sheets .cs-inst-title { font-size: 18px; line-height: 1.45; }
  .case-page.is-product-sheets .cs-badge {
    display: block;
    margin-top: 7px;
    padding: 0;
    border-radius: 0;
    background: transparent;
    color: var(--cs-accent-deep);
    font-size: 12.5px;
  }
  .case-page.is-product-sheets .cs-members {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 14px;
    margin-bottom: 20px;
  }
  .case-page.is-product-sheets .cs-member,
  .case-page.is-product-sheets .cs-member.is-me {
    gap: 7px;
    padding: 3px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-size: 13.5px;
  }
  .case-page.is-product-sheets .cs-member i,
  .case-page.is-product-sheets .cs-member.is-me i {
    width: auto;
    height: auto;
    border-radius: 0;
    background: transparent;
    color: var(--cs-accent-deep);
  }
  .case-page.is-product-sheets .cs-inst > .cs-card-text { font-size: 14px; line-height: 1.68; }
  .case-page.is-product-sheets .cs-stages {
    grid-template-columns: 1fr;
    margin-top: 24px;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-stage {
    padding: 22px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
  }
  .case-page.is-product-sheets .cs-stage + .cs-stage { border-left: 0; }
  .case-page.is-product-sheets .cs-stage-n { display: none; }
  .case-page.is-product-sheets .cs-stage h4 { font-size: 16px; }
  .case-page.is-product-sheets .cs-stage li { font-size: 14px; line-height: 1.55; }
  .case-page.is-product-sheets .cs-note { margin-top: 20px; font-size: 14px; line-height: 1.65; }

  .case-page.is-product-sheets .cs-docs {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 20px 10px;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-doc {
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-doc-fig { border-radius: 2px; }
  .case-page.is-product-sheets .cs-doc-cap {
    padding: 9px 0 0;
    border: 0;
    text-align: left;
    font-size: 12.5px;
    line-height: 1.5;
  }
  .case-page.is-product-sheets .cs-redacted {
    margin-top: 14px;
    padding: 0;
    border: 0;
    font-size: 12.5px;
  }
  .case-page.is-product-sheets .cs-minutes {
    margin-top: var(--ps-content-gap);
    border: 0;
    border-radius: 0;
  }
  .case-page.is-product-sheets .cs-minutes-head {
    padding: 0 0 14px;
    border-bottom: 1px solid var(--cs-hair);
    background: transparent;
    color: var(--cs-ink);
    font-size: 15px;
  }
  .case-page.is-product-sheets .cs-minutes-head span { color: var(--cs-ink-3); font-size: 12.5px; }
  .case-page.is-product-sheets .cs-minutes-body { grid-template-columns: 1fr; gap: 24px; padding: 18px 0 0; }
  .case-page.is-product-sheets .cs-minutes-prod li { font-size: 13.5px; }

  /* 产品正反面是本页主交互：明确点击，不再把翻面绑在滚动位置上。 */
  .case-page.is-product-sheets .cs-flip-wrap {
    grid-template-columns: 1fr;
    gap: 26px;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-flip {
    width: min(78vw, 286px);
    margin: 0 auto;
    pointer-events: auto;
    cursor: pointer;
    touch-action: manipulation;
  }
  .case-page.is-product-sheets .cs-flip:focus-visible { outline: 2px solid var(--cs-accent); outline-offset: 6px; }
  .case-page.is-product-sheets .cs-flip-copy h4 { font-size: 19px; margin-bottom: 10px; }
  .case-page.is-product-sheets .cs-flip-copy p { font-size: 14px; line-height: 1.68; }
  .case-page.is-product-sheets .cs-flip-hint { margin-top: 16px; }
  .case-page.is-product-sheets .cs-layouts { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 32px; }
  .case-page.is-product-sheets .cs-layout {
    padding-top: 14px;
    border: 0;
    border-top: 1px solid var(--cs-hair);
    border-radius: 0;
  }
  .case-page.is-product-sheets .cs-layout-k { min-height: 48px; padding: 0; background: transparent; line-height: 1.45; }
  .case-page.is-product-sheets .cs-layout.is-mine .cs-layout-k { background: transparent; }
  .case-page.is-product-sheets .cs-layout-vis { min-height: 140px; padding: 12px 0 0; }
  .case-page.is-product-sheets .cs-pills { display: grid; grid-template-columns: 1fr; gap: 0; margin-top: 20px; }
  .case-page.is-product-sheets .cs-pill {
    position: relative;
    padding: 11px 0 11px 16px;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
    color: var(--cs-ink-2);
    font-size: 14px;
    white-space: normal;
  }
  .case-page.is-product-sheets .cs-pill::before {
    content: '';
    position: absolute;
    left: 0;
    top: 16px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--pill-c);
  }

  /* 方法与设计规范使用同一种扁平列表。 */
  .case-page.is-product-sheets .cs-flow.is-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-flow.is-steps .cs-flow-step {
    padding: 18px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
    text-align: left;
  }
  .case-page.is-product-sheets .cs-flow.is-steps b { display: flex; gap: 10px; align-items: baseline; font-size: 15.5px; }
  .case-page.is-product-sheets .cs-flow.is-steps b i { display: inline; margin: 0; font-size: 12px; }
  .case-page.is-product-sheets .cs-flow.is-steps small { margin: 5px 0 0 30px; font-size: 13.5px; }

  .case-page.is-product-sheets .cs-palette {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-palette-preview {
    order: -1;
    position: static;
    max-width: none;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-palette-fig { aspect-ratio: 16 / 9; border-radius: 2px; }
  .case-page.is-product-sheets .cs-palette-meta { padding: 12px 0 0; border: 0; }
  .case-page.is-product-sheets .cs-palette-meta p { font-size: 14px; }
  .case-page.is-product-sheets .cs-swatches { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; }
  .case-page.is-product-sheets .cs-swatch {
    min-width: 0;
    flex-direction: column;
    gap: 5px;
    justify-content: center;
    padding: 8px 3px 7px;
    border: 0;
    border-radius: 3px;
    background: transparent;
    text-align: center;
  }
  .case-page.is-product-sheets .cs-swatch:hover,
  .case-page.is-product-sheets .cs-swatch.is-active {
    border-color: transparent;
    background: color-mix(in srgb, var(--sw-c) 10%, var(--cs-paper));
  }
  .case-page.is-product-sheets .cs-swatch i { width: 22px; height: 7px; border-radius: 1px; box-shadow: none; }
  .case-page.is-product-sheets .cs-swatch-t b { display: none; }
  .case-page.is-product-sheets .cs-swatch-t small { display: block; overflow: hidden; font-size: 9px; letter-spacing: 0; text-overflow: ellipsis; }

  .case-page.is-product-sheets .cs-specs {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-spec {
    padding: 22px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-spec h4 { font-size: 16px; }
  .case-page.is-product-sheets .cs-spec p { font-size: 14px; line-height: 1.62; }

  .case-page.is-product-sheets .cs-phases {
    grid-template-columns: 1fr;
    margin-top: var(--ps-content-gap);
    border: 0;
    border-radius: 0;
  }
  .case-page.is-product-sheets .cs-phase,
  .case-page.is-product-sheets .cs-phase.is-dark {
    padding: 24px 0;
    border: 0;
    border-bottom: 1px solid var(--cs-hair);
    background: transparent;
  }
  .case-page.is-product-sheets .cs-phase + .cs-phase { border-left: 0; }
  .case-page.is-product-sheets .cs-phase-n,
  .case-page.is-product-sheets .cs-phase.is-dark .cs-phase-n {
    display: none;
  }
  .case-page.is-product-sheets .cs-phase h4,
  .case-page.is-product-sheets .cs-phase.is-dark h4 { color: var(--cs-ink); font-size: 17px; }
  .case-page.is-product-sheets .cs-phase > p,
  .case-page.is-product-sheets .cs-phase.is-dark > p { color: var(--cs-ink-2); font-size: 14px; line-height: 1.68; }
  .case-page.is-product-sheets .cs-phase li,
  .case-page.is-product-sheets .cs-phase.is-dark li {
    padding: 4px 0;
    background: transparent;
    color: var(--cs-ink-3);
    font-size: 13.5px;
  }

  /* 图片只承担预览，完整细节统一交给灯箱。 */
  .case-page.is-product-sheets .cs-figure {
    margin-top: var(--ps-content-gap);
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-figure img {
    width: 100%;
    max-height: none;
    aspect-ratio: 16 / 9;
    border-radius: 2px;
    object-fit: cover;
    object-position: top;
  }
  .case-page.is-product-sheets .cs-figure-cap {
    padding: 10px 0 0;
    border: 0;
    font-size: 12.5px;
    line-height: 1.5;
  }
  .case-page.is-product-sheets .cs-figure-cap i { display: none; }
  .case-page.is-product-sheets .cs-figure-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: var(--ps-content-gap); }
  .case-page.is-product-sheets .cs-figure-pair .cs-figure-cap { display: block; }

  .case-page.is-product-sheets .cs-timeline { margin-top: var(--ps-content-gap); }
  .case-page.is-product-sheets .cs-ms { gap: 15px; padding: 16px 0; }
  .case-page.is-product-sheets .cs-ms-dot { width: 27px; height: 27px; font-size: 10px; }
  .case-page.is-product-sheets .cs-timeline::before,
  .case-page.is-product-sheets .cs-timeline-line { left: 13px; }
  .case-page.is-product-sheets .cs-ms-body h4 { font-size: 15px; line-height: 1.5; }
  .case-page.is-product-sheets .cs-ms-body p { font-size: 13.5px; line-height: 1.62; }

  /* 交付数据与 13 款成品是紧凑索引，不制造第二套横向交互。 */
  .case-page.is-product-sheets .cs-delivery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 18px;
    margin-top: var(--ps-content-gap);
  }
  .case-page.is-product-sheets .cs-deliver {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-deliver-n { font-size: 34px; }
  .case-page.is-product-sheets .cs-deliver-l { font-size: 13px; }
  .case-page.is-product-sheets .cs-grid13 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
    margin-top: 18px;
  }
  .case-page.is-product-sheets .cs-grid13 .cs-sheet {
    min-width: 0;
    border-radius: 2px;
    box-shadow: 0 6px 18px rgba(2, 2, 2, .09);
  }
  .case-page.is-product-sheets .cs-grid13 .cs-sheet-label { display: none; }

  .case-page.is-product-sheets .cs-lessons { margin-top: var(--ps-content-gap); }
  .case-page.is-product-sheets .cs-lesson,
  .case-page.is-product-sheets .cs-lesson:first-child {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 0 34px;
    border: 0;
  }
  .case-page.is-product-sheets .cs-lesson:last-child { padding-bottom: 0; }
  .case-page.is-product-sheets .cs-lesson-n { display: none; }
  .case-page.is-product-sheets .cs-lesson h3 { margin-bottom: 10px; font-size: 18px; line-height: 1.45; }
  .case-page.is-product-sheets .cs-lesson p { font-size: 14.5px; line-height: 1.72; }

  /* 页尾沿用内刊页的无分隔线与轻量信息层级。 */
  .case-page.is-product-sheets .cs-outro {
    padding-top: var(--ps-section-gap);
    border-top: 0;
  }
  .case-page.is-product-sheets .cs-nav { border-top: 0; }
}
.cs-flip-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 3px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 3px 8px rgba(2,2,2,0.13), 0 22px 48px rgba(2,2,2,0.16);
}
.cs-flip-face img { width: 100%; height: 100%; object-fit: contain; }
.cs-flip-back { transform: rotateY(180deg); }

.cs-flip-copy [data-flip-side] {
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}
.cs-flip-copy [data-flip-side].is-out {
  opacity: 0;
  transform: translateY(-8px);
  position: absolute;
  pointer-events: none;
}
.cs-flip-copy { position: relative; }
.cs-flip-side-k {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cs-accent);
  margin-bottom: 10px;
}
.cs-flip-copy h4 {
  font-family: var(--f-cjk);
  font-size: clamp(21.5px, 2.2vw, 27.5px);
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 14px;
  color: var(--cs-ink);
}
.cs-flip-copy p {
  font-family: var(--f-cjk);
  font-size: 18px;
  line-height: 1.85;
  color: var(--cs-ink-2);
  margin: 0;
}
.cs-flip-hint {
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cs-flip-hint i {
  width: 34px; height: 1px;
  background: var(--cs-paper-3);
  display: block;
  position: relative;
  overflow: hidden;
}
.cs-flip-hint i::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--cs-accent);
  transform: scaleX(var(--flip-progress, 0));
  transform-origin: left;
}

/* 版式对比示意 */
.cs-layouts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 22px 0 0;
}
.cs-layout {
  border: 1px solid var(--cs-hair);
  border-radius: 5px;
  overflow: hidden;
}
.cs-layout.is-mine { border-color: rgb(var(--cs-accent-rgb) / 0.45); }
.cs-layout-k {
  padding: 8px 12px;
  font-family: var(--f-cjk);
  font-size: 13px;
  background: var(--cs-paper-2);
  color: var(--cs-ink-3);
}
.cs-layout.is-mine .cs-layout-k { background: rgb(var(--cs-accent-rgb) / 0.1); color: var(--cs-accent-deep); }
.cs-layout-vis { padding: 14px; display: flex; flex-direction: column; gap: 6px; min-height: 190px; }
.cs-bar {
  height: 15px;
  border-radius: 2px;
  background: var(--cs-paper-3);
  transform-origin: left;
}
.cs-bar.is-accent { background: rgb(var(--cs-accent-rgb) / 0.35); }
.cs-bar.is-block { flex: 1; background: var(--cs-paper-3); }

/* 副标题 pills */
.cs-pills { display: flex; flex-wrap: wrap; gap: 9px; margin: 22px 0 0; }
.cs-pill {
  padding: 7px 16px;
  border-radius: 100px;
  font-family: var(--f-cjk);
  font-size: 15.5px;
  color: #fff;
  background: var(--pill-c, var(--cs-ink));
  white-space: nowrap;
}

/* ────────────────────────────────────────
   方法流程
──────────────────────────────────────── */
.cs-flow {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 8px;
  margin: 34px 0 0;
}
.cs-flow-step {
  flex: 1 1 130px;
  padding: 16px 14px;
  background: var(--cs-paper-2);
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  text-align: center;
}
.cs-flow-step span {
  display: block;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cs-accent);
  margin-bottom: 6px;
}
/* 序号版流程条：左对齐、序号 + 标题一行、下面挂一句说明。
   原来的红色英文小标（Research / System …）看着眼花，换成 01–06。 */
/* 序号在上、文字在下。横排时每格只有 ~150px，序号和文字挤一行会
   把两三个字的标题也压成两行；上下排之后大多数标题都能单行。
   整体居中：个别标题（如「封面封底信息分配」）仍会换行，居中才不会
   在一排格子里看出参差。 */
.cs-flow.is-steps { align-items: stretch; }
.cs-flow.is-steps .cs-flow-step {
  text-align: center;
  padding: 18px 12px 19px;
}
.cs-flow.is-steps b {
  display: block;
  font-size: var(--fs-base);
}
.cs-flow.is-steps b i {
  display: block;
  margin-bottom: 9px;
  font-style: normal;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--cs-ink-3);
  letter-spacing: 0.06em;
}
.cs-flow.is-steps small {
  display: block;
  margin-top: 7px;
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--cs-ink-2);
}

.cs-flow-step b {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--cs-ink);
}

/* ────────────────────────────────────────
   色彩系统（13 色 ↔ 单页联动）
──────────────────────────────────────── */
.cs-palette {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 278px;
  gap: clamp(24px, 3vw, 40px);
  margin: 34px 0 0;
  align-items: start;
}
.cs-swatches {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 8px;
}
.cs-swatch {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--cs-hair);
  border-radius: 5px;
  background: var(--cs-paper);
  text-align: left;
  transition: border-color .3s var(--ease), background .3s var(--ease);
  width: 100%;
}
.cs-swatch:hover,
.cs-swatch.is-active {
  border-color: var(--sw-c);
  background: color-mix(in srgb, var(--sw-c) 7%, var(--cs-paper));
}
.cs-swatch i {
  width: 20px; height: 20px;
  border-radius: 4px;
  background: var(--sw-c);
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(2,2,2,0.08);
}
.cs-swatch-t { min-width: 0; }
.cs-swatch-t b {
  display: block;
  font-family: var(--f-cjk);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--cs-ink);
}
.cs-swatch-t small {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cs-ink-3);
}

.cs-palette-preview {
  position: sticky;
  top: 96px;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  background: var(--cs-paper);
}
.cs-palette-fig {
  aspect-ratio: 210 / 297;
  background: var(--cs-paper-2);
  overflow: hidden;
  cursor: zoom-in;
}
.cs-palette-fig img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.cs-palette-meta { padding: 14px 16px; border-top: 1px solid var(--cs-hair); }
.cs-palette-meta b {
  display: block;
  font-family: var(--f-cjk);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--cs-ink);
}
.cs-palette-meta p {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  color: var(--cs-ink-2);
  margin: 4px 0 0;
  line-height: 1.6;
}
.cs-palette-meta small {
  display: block;
  margin-top: 8px;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--cs-ink-3);
}

/* 规范卡 */
.cs-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 34px 0 0;
}
.cs-spec {
  padding: 20px;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  background: var(--cs-paper);
}
.cs-spec h4 {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--cs-ink);
}
.cs-spec p {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--cs-ink-3);
  margin: 12px 0 0;
}
.cs-spec-type div { line-height: 1.35; }
.cs-spec-type .t1 { font-family: var(--f-cjk); font-size: 18.5px; font-weight: 600; color: var(--cs-ink); }
.cs-spec-type .t2 { font-family: var(--f-cjk); font-size: 15px; color: var(--cs-ink-2); }
.cs-spec-type .t3 { font-family: var(--f-cjk); font-size: 13px; color: var(--cs-ink-3); }
.cs-spec-bars { display: flex; flex-direction: column; gap: 5px; }
.cs-spec-bars i { height: 8px; border-radius: 2px; background: var(--cs-paper-3); display: block; }
.cs-spec-bars i:first-child { background: rgb(var(--cs-accent-rgb) / 0.6); }

/* ────────────────────────────────────────
   三阶段
──────────────────────────────────────── */
.cs-phases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  margin: 34px 0 0;
}
.cs-phase { padding: clamp(22px, 2.6vw, 30px); background: var(--cs-paper); }
.cs-phase + .cs-phase { border-left: 1px solid var(--cs-hair); }
.cs-phase.is-dark { background: var(--cs-ink); }
.cs-phase-n {
  font-family: var(--f-heading);
  font-size: 52px;
  line-height: 1;
  color: var(--cs-paper-3);
  margin-bottom: 14px;
}
.cs-phase.is-dark .cs-phase-n { color: rgba(251,251,244,0.14); }
.cs-phase h4 {
  font-family: var(--f-cjk);
  font-size: 17.5px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--cs-ink);
}
.cs-phase.is-dark h4 { color: var(--cs-paper); }
.cs-phase > p {
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.75;
  color: var(--cs-ink-2);
  margin: 0;
}
.cs-phase.is-dark > p { color: rgba(251,251,244,0.7); }
.cs-phase ul { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.cs-phase li {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  padding: 7px 11px;
  background: var(--cs-paper-2);
  border-radius: 4px;
  color: var(--cs-ink-3);
  display: flex;
  align-items: center;
  gap: 8px;
}
.cs-phase.is-dark li { background: rgba(251,251,244,0.07); color: rgba(251,251,244,0.72); }
.cs-phase li::before {
  content: '';
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--cs-accent);
  flex-shrink: 0;
}

/* ────────────────────────────────────────
   甘特图
──────────────────────────────────────── */
.cs-gantt-scroll { overflow-x: auto; margin: 34px 0 0; padding-bottom: 6px; }
.cs-gantt { min-width: 720px; }
.cs-gantt-head,
.cs-gantt-row {
  display: grid;
  grid-template-columns: 170px repeat(6, 1fr);
}
.cs-gantt-head > div {
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--cs-ink-3);
  text-align: center;
  padding: 8px 4px;
}
.cs-gantt-head > div:first-child { text-align: left; font-family: var(--f-cjk); }
.cs-gantt-row { align-items: center; margin-bottom: 5px; }
.cs-gantt-row > .cs-gantt-name {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  color: var(--cs-ink-2);
  padding-right: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cs-gantt-cell { padding: 2px 3px; }
.cs-gantt-bar {
  height: 21px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  transform-origin: left;
}
.cs-gantt-bar.done   { background: var(--cs-ink-2); }
.cs-gantt-bar.review { background: var(--cs-accent); }
.cs-gantt-bar.pub    { background: #2D6B4A; }
.cs-gantt-bar.wip    { background: #B07D2A; }
.cs-gantt-legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; }
.cs-gantt-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-cjk);
  font-size: 13.5px;
  color: var(--cs-ink-3);
}
.cs-gantt-legend i { width: 10px; height: 10px; border-radius: 2px; display: block; }

/* 里程碑 */
.cs-timeline { position: relative; margin: 40px 0 0; }
.cs-timeline::before {
  content: '';
  position: absolute;
  left: 15px; top: 24px; bottom: 24px;
  width: 1px;
  background: var(--cs-paper-3);
}
.cs-timeline-line {
  position: absolute;
  left: 15px; top: 24px;
  width: 1px;
  background: var(--cs-accent);
  transform-origin: top;
  transform: scaleY(0);
}
.cs-ms {
  display: flex;
  gap: 22px;
  padding: 17px 0;
  position: relative;
}
.cs-ms-dot {
  width: 31px; height: 31px;
  border-radius: 50%;
  background: var(--cs-paper);
  border: 1px solid var(--cs-accent);
  color: var(--cs-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  flex-shrink: 0;
  z-index: 1;
}
.cs-ms.is-done .cs-ms-dot { background: var(--cs-accent); color: #fff; }
.cs-ms-body { padding-top: 5px; }
.cs-ms-body h4 {
  font-family: var(--f-cjk);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 5px;
  color: var(--cs-ink);
}
.cs-ms-body p {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--cs-ink-3);
  margin: 0;
}

/* ────────────────────────────────────────
   交付 / 13 款全系列
──────────────────────────────────────── */
.cs-delivery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 34px 0 0;
}
.cs-deliver {
  padding: 24px;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  background: var(--cs-paper);
}
.cs-deliver-n {
  font-family: var(--f-heading);
  font-size: clamp(31.5px, 3.4vw, 44px);
  line-height: 1;
  color: var(--cs-accent);
}
.cs-deliver-l {
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--cs-ink-3);
  margin-top: 9px;
}

.cs-grid13 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  margin: 22px 0 0;
}
.cs-grid13 .cs-sheet {
  width: 100%;
  box-shadow: 0 1px 3px rgba(2,2,2,0.1), 0 10px 26px rgba(2,2,2,0.09);
}
.cs-grid13 .cs-sheet:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 4px 10px rgba(2,2,2,0.13), 0 20px 44px rgba(2,2,2,0.16);
}
.cs-grid13 .cs-sheet-label {
  background: linear-gradient(to top, rgba(2,2,2,0.88), transparent);
}

/* ────────────────────────────────────────
   学习与总结 — 大序号 + 完整阅读宽度的长文
──────────────────────────────────────── */
.cs-lessons {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}
.cs-lesson {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: clamp(14px, 2.6vw, 36px);
  padding: clamp(26px, 3vw, 38px) 0;
  border-top: 1px solid var(--cs-hair);
}
.cs-lesson:first-child { border-top: none; padding-top: 6px; }
.cs-lesson-n {
  font-family: var(--f-heading);
  font-size: clamp(40px, 4.4vw, 62px);
  line-height: 0.86;
  color: rgb(var(--cs-accent-rgb) / 0.32);
}
.cs-lesson h3 {
  font-family: var(--f-cjk);
  font-size: clamp(18.5px, 2.1vw, 25px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--cs-ink);
  margin: 0 0 14px;
}
.cs-lesson p {
  font-family: var(--f-cjk);
  font-size: clamp(17.5px, 1.35vw, 19.5px);
  line-height: 1.9;
  color: var(--cs-ink-2);
  margin: 0;
}
.cs-lesson strong { font-weight: 600; color: var(--cs-ink); }

/* ────────────────────────────────────────
   可放大的整幅图（原始文件凭证）
──────────────────────────────────────── */
.cs-figure {
  margin: 34px 0 0;
  border: 1px solid var(--cs-hair);
  border-radius: 6px;
  overflow: hidden;
  background: var(--cs-paper);
  display: block;
  width: 100%;
  padding: 0;
  text-align: left;
  cursor: zoom-in;
  transition: box-shadow .4s var(--ease);
}
.cs-figure:hover { box-shadow: 0 14px 36px rgba(2,2,2,0.1); }
.cs-figure img {
  width: 100%;
  display: block;
  /* 图都能点开放大，页面上没必要占掉一整屏。统一压到 58vh 以内。 */
  max-height: 58vh;
  object-fit: contain;
  background: var(--cs-paper);
}
.cs-figure figcaption,
.cs-figure-cap {
  padding: 13px 18px;
  border-top: 1px solid var(--cs-hair);
  font-family: var(--f-cjk);
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--cs-ink-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.cs-figure-cap b { font-weight: 600; color: var(--cs-ink); }
.cs-figure-cap i {
  font-style: normal;
  font-family: var(--f-body);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cs-accent);
  white-space: nowrap;
}

/* 双图并排 */
.cs-figure-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 34px 0 0;
}
.cs-figure-pair .cs-figure { margin: 0; }
/* 照片类并排：统一比例，避免两张原始比例不同导致高度错位 */
.cs-figure-pair.is-media .cs-figure img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* 脱敏说明 */
.cs-redacted {
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
  margin: 14px 0 0;
  padding-left: 13px;
  border-left: 2px solid var(--cs-paper-3);
  line-height: 1.7;
}

/* 场景图 */
.cs-scene {
  margin: 34px 0 0;
  border-radius: 6px;
  overflow: hidden;
  background: var(--cs-paper-2);
  border: 1px solid var(--cs-hair);
}
.cs-scene img { width: 100%; display: block; }
.cs-scene-slot {
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--f-cjk);
  font-size: 16px;
  color: var(--cs-ink-3);
  text-align: center;
  padding: 24px;
  line-height: 1.7;
}
.cs-scene-slot svg { opacity: 0.3; }
.cs-scene-slot code {
  font-family: var(--f-body);
  font-size: 13.5px;
  background: var(--cs-paper-3);
  padding: 3px 8px;
  border-radius: 3px;
  color: var(--cs-ink-2);
}
.cs-cap {
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
  margin: 10px 0 0;
  text-align: center;
}

/* ────────────────────────────────────────
   收尾（深色）
──────────────────────────────────────── */
.cs-closing {
  background: var(--cs-ink);
  padding: clamp(64px, 8vw, 118px) var(--gutter) clamp(36px, 4.5vw, 60px);
}
.cs-closing-inner { max-width: var(--cs-max); margin: 0 auto; }
.cs-closing blockquote {
  font-family: var(--f-cjk);
  font-size: clamp(21.5px, 2.6vw, 34.5px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--cs-paper);
  border-left: 2px solid var(--cs-accent);
  padding-left: clamp(22px, 3vw, 38px);
  margin: 0;
  max-width: 30em;
}
.cs-closing blockquote em { font-style: normal; color: var(--cs-accent); }
.cs-closing cite {
  display: block;
  margin-top: 22px;
  padding-left: clamp(22px, 3vw, 38px);
  font-family: var(--f-body);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: rgba(251,251,244,0.4);
  font-style: normal;
}

/* ────────────────────────────────────────
   页尾行动区：项目总结 / 联系方式 / 问问 AI
   形制参考 murynmukha.com：浅底、大圆角、药丸控件、
   分层柔和阴影 + 顶部内高光。主色沿用本站橙色，
   参考站的蓝配暖白纸底会显得外来。
──────────────────────────────────────── */
.cs-outro {
  background: var(--cs-paper);
  border-top: 1px solid var(--cs-hair);
  padding: clamp(44px, 5.5vw, 78px) var(--gutter) clamp(30px, 3.5vw, 46px);
}
.cs-outro-inner {
  max-width: var(--cs-max);
  margin: 0 auto;
  display: grid;
  /* 中间列给定宽轨，而不是 auto：
     auto 轨会随卡内文字（邮箱 / 电话长度不同）改变宽度，
     切换时右侧「问问 AI」会跟着左右跳动 */
  grid-template-columns: 1fr minmax(0, 560px) 1fr;
  gap: clamp(20px, 3vw, 44px);
  align-items: stretch;
}
.cs-outro-left {
  display: flex;
  align-items: center;      /* 与右侧 AI 图标胶囊同处一条水平中线 */
}
/* 面板的定位参照：尺寸与按钮一致，面板才会紧贴按钮上方弹出 */
.cs-summary-anchor {
  position: relative;
  display: inline-flex;
}
.cs-outro-center { justify-self: stretch; display: flex; justify-content: center; }
/* 1fr auto 1fr：上下两个 fr 等高，中间的图标胶囊必然落在整列的中线上。
   这样它和左侧「项目总结」按钮（同样在行内居中）能精确对齐，
   而且标题与说明文字的行数变化也不会把胶囊挤偏。 */
.cs-outro-right {
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  justify-items: center;
}
.cs-ai-title { align-self: end; margin-bottom: 14px; }

/* ── 项目总结按钮 ── */
.cs-summary-btn {
  height: 52px;
  padding: 0 24px;
  border-radius: 100px;
  background: rgba(2, 2, 2, 0.045);
  box-shadow: inset 0 1.5px 0 0 rgba(255, 255, 255, 0.7);
  font-family: var(--f-cjk);
  font-size: 16px;
  font-weight: 600;
  color: var(--cs-ink-2);
  white-space: nowrap;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.cs-summary-btn:hover { background: rgba(2, 2, 2, 0.08); color: var(--cs-ink); }
.cs-summary-btn[aria-expanded="true"] { background: rgba(2, 2, 2, 0.08); color: var(--cs-ink); }

/* ── 总结面板：贴着按钮向上弹出 ── */
.cs-summary {
  position: absolute;
  left: 0;
  bottom: calc(100% + 14px);
  z-index: 90;
  width: min(560px, calc(100vw - 44px));
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.cs-summary.is-open { opacity: 1; transform: none; pointer-events: auto; }
.cs-summary-card {
  position: relative;
  background: #181212;
  border-radius: 16px;
  padding: 22px 26px;
  box-shadow: 0 10px 34px rgba(24, 18, 18, 0.22);
  /* 上限由 JS 按「按钮上方到导航栏之间的可用空间」算出，
     保证向上弹出时不会钻到固定导航下面把关闭按钮挡住 */
  max-height: var(--cs-summary-max, 60vh);
  overflow-y: auto;
}
.cs-summary-card p {
  font-family: var(--f-cjk);
  font-size: 16px;
  line-height: 1.75;
  color: rgba(245, 240, 240, 0.82);
  margin: 0 0 12px;
  padding-right: 14px;
}
.cs-summary-card p:last-child { margin-bottom: 0; }
.cs-summary-card strong { color: #F5F0F0; font-weight: 600; }
.cs-summary-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(245, 240, 240, 0.5);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.cs-summary-close:hover { color: #F5F0F0; background: rgba(245, 240, 240, 0.1); }

/* ── 联系卡 ── */
.cs-cta-card {
  width: 100%;
  background: rgb(var(--cs-accent-rgb) / 0.07);
  border-radius: clamp(26px, 3vw, 36px);
  padding: clamp(24px, 2.6vw, 32px) clamp(24px, 3vw, 38px) clamp(28px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: inset 0 1.5px 0 0 rgba(255, 255, 255, 0.6);
}
.cs-cta-title {
  font-family: var(--f-cjk);
  font-size: clamp(18px, 1.9vw, 23px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--cs-ink);
  text-align: center;
  margin: 0;
}
.cs-cta-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border-radius: 100px;
  background: rgba(2, 2, 2, 0.05);
}
.cs-cta-switch button {
  padding: 7px 20px;
  border-radius: 100px;
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
  transition: background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.cs-cta-switch button.is-active {
  background: #fff;
  color: var(--cs-ink);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(2,2,2,0.06), 0 0 0 1px rgba(2,2,2,0.03);
}

.cs-cta-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.cs-cta-pill {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.72);
  border-radius: 1000px;
  padding: 4px 4px 4px 22px;
  box-shadow:
    inset 0 1.5px 0 0 rgba(255, 255, 255, 1),
    0 0 0 1px rgba(2, 2, 2, 0.04),
    0 1px 3px rgba(2, 2, 2, 0.03);
}
.cs-cta-value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--f-body);
  font-size: 16px;
  color: var(--cs-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cs-icon-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cs-ink-3);
  background: rgba(255, 255, 255, 0.9);
  box-shadow:
    inset 0 1.5px 0 0 #fff,
    0 0 0 1px rgba(2, 2, 2, 0.04),
    0 1px 6px -2px rgba(2, 2, 2, 0.06);
  transition: background .2s var(--ease), color .2s var(--ease), box-shadow .25s var(--ease);
}
.cs-icon-btn:hover {
  background: #fff;
  color: var(--cs-ink);
  box-shadow:
    inset 0 1.5px 0 0 #fff,
    0 0 0 1px rgba(2, 2, 2, 0.06),
    0 4px 14px -6px rgba(2, 2, 2, 0.14);
}
.cs-icon-btn:active { box-shadow: 0 1px 0 rgba(2,2,2,0.05); }

.cs-cta-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 52px;
  padding: 0 18px 0 24px;
  border-radius: 100px;
  background: var(--cs-accent);
  color: #fff;
  font-family: var(--f-cjk);
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow:
    0 6px 16px -8px rgba(160, 70, 10, 0.3),
    0 2px 6px -3px rgba(160, 70, 10, 0.2),
    inset 0 -1px 0 1px rgba(120, 50, 0, 0.14);
  transition: filter .2s var(--ease), transform .3s var(--ease);
}
.cs-cta-btn:hover { filter: brightness(1.06); }
.cs-cta-btn:hover svg { transform: translateX(3px); }
.cs-cta-btn svg { transition: transform .35s var(--ease); }
.cs-cta-btn:active { transform: scale(.985); box-shadow: none; }

/* ── 问问 AI ── */
.cs-ai-title {
  font-family: var(--f-cjk);
  font-size: clamp(16px, 1.7vw, 21px);
  color: var(--cs-ink-2);
  text-align: center;
  margin: 0;
}
.cs-ai-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 1000px;
  overflow: hidden;
  background: rgba(2, 2, 2, 0.05);
  box-shadow: inset 0 1.5px 0 0 rgba(255, 255, 255, 0.7);
}
.cs-ai-pill.is-ai-roll-ready .cs-ai-btn { pointer-events: none; }
.cs-ai-btn {
  width: 46px; height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cs-ink-2);
  background: rgba(255, 255, 255, 0.8);
  box-shadow:
    inset 0 1.5px 0 0 #fff,
    0 0 0 1px rgba(2, 2, 2, 0.03),
    0 1px 6px -3px rgba(2, 2, 2, 0.06);
  transition: background .2s var(--ease), color .2s var(--ease),
              box-shadow .25s var(--ease), transform .3s var(--ease);
}
.cs-ai-btn:hover {
  background: #fff;
  color: var(--cs-ink);
  transform: translateY(-2px);
  box-shadow:
    inset 0 1.5px 0 0 #fff,
    0 0 0 1px rgba(2, 2, 2, 0.05),
    0 8px 20px -8px rgba(2, 2, 2, 0.18);
}
.cs-ai-btn i {
  width: 21px; height: 21px;
  display: block;
  background-color: currentColor;
  -webkit-mask: var(--ai-icon) center / contain no-repeat;
          mask: var(--ai-icon) center / contain no-repeat;
}
/* ── 复制提示 ── */
.cs-toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 12px);
  z-index: 220;
  padding: 11px 22px;
  border-radius: 100px;
  background: var(--cs-ink);
  color: var(--cs-paper);
  font-family: var(--f-cjk);
  font-size: 14px;
  box-shadow: 0 12px 34px rgba(0,0,0,0.25);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s var(--ease);
}
.cs-toast.is-on { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* 上一个 / 下一个作品 —— 详情页不带页脚，这里就是页面结尾，
   底部多留一些空间，收得不至于太突然 */
.cs-nav {
  background: var(--cs-paper);
  border-top: 1px solid var(--cs-hair);
  padding: clamp(26px, 3vw, 38px) var(--gutter) clamp(48px, 6vw, 78px);
}
.cs-nav-inner {
  max-width: var(--cs-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.cs-nav a {
  font-family: var(--f-cjk);
  font-size: 16px;
  color: var(--cs-ink-3);
  display: inline-flex;
  align-items: center;
  gap: 9px;
  transition: color .3s var(--ease);
}
.cs-nav a:hover { color: var(--cs-accent); }
.cs-nav a[aria-disabled="true"] { opacity: 0.3; pointer-events: none; }

/* ────────────────────────────────────────
   LIGHTBOX
──────────────────────────────────────── */
.cs-lb {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(2,2,2,0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 46px 60px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .38s var(--ease), visibility .38s var(--ease);
}
.cs-lb.is-open { opacity: 1; visibility: visible; }
.cs-lb-stage {
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.cs-lb-stage img {
  max-width: min(88vw, 900px);
  max-height: 78vh;
  width: auto;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}
.cs-lb-meta {
  font-family: var(--f-cjk);
  font-size: 15px;
  color: rgba(251,251,244,0.72);
  text-align: center;
}
.cs-lb-meta small {
  display: block;
  margin-top: 4px;
  font-family: var(--f-body);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: rgba(251,251,244,0.4);
}
.cs-lb-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--cs-hair-dark);
  color: rgba(251,251,244,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.cs-lb-btn:hover { background: rgba(251,251,244,0.1); border-color: rgba(251,251,244,0.4); }
.cs-lb-prev { left: 18px; }
.cs-lb-next { right: 18px; }
.cs-lb-close { top: 18px; right: 18px; transform: none; position: absolute; }
.cs-lb-flip {
  font-family: var(--f-cjk);
  font-size: 14.5px;
  padding: 8px 18px;
  border: 1px solid var(--cs-hair-dark);
  border-radius: 100px;
  color: rgba(251,251,244,0.82);
  transition: background .3s var(--ease);
}
.cs-lb-flip:hover { background: rgba(251,251,244,0.1); }

/* 单图模式：只看一张，不需要翻面与前后切换 */
.cs-lb.is-single .cs-lb-prev,
.cs-lb.is-single .cs-lb-next,
.cs-lb.is-single .cs-lb-flip { display: none; }
.cs-lb.is-single .cs-lb-stage img { max-height: 84vh; max-width: min(94vw, 1400px); }

/* ════════════════════════════════════════
   内刊案例专用板块
   （《昂楷视界》/《昂楷之道》。放在库里而不是页面内联，
     以后再做画册 / 期刊类作品可以直接复用。）
════════════════════════════════════════ */

/* ── 三本刊物：深色头图下方的封面并排 ── */
.cs-journals {
  background: var(--cs-ink);
  /* 上内边距不能省：紧贴 hero-meta 那条信息行会显得挤 */
  padding: clamp(46px, 5.4vw, 78px) 24px clamp(46px, 5.4vw, 74px);
}
.cs-journals-inner {
  max-width: var(--cs-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.4vw, 34px);
}
.cs-journal {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font: inherit;
}
.cs-journal-fig {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: rgba(251, 251, 244, 0.05);
  box-shadow: 0 3px 10px rgba(0,0,0,0.5), 0 26px 60px rgba(0,0,0,0.42);
  transition: transform .55s var(--ease), box-shadow .55s var(--ease);
}
.cs-journal-fig img { width: 100%; display: block; aspect-ratio: 922 / 1217; }
.cs-journal:hover .cs-journal-fig {
  transform: translateY(-10px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.55), 0 34px 74px rgba(0,0,0,0.5);
}

/* 「可翻阅」标记：常驻在封面上，不做成 hover 才出现——
   鼠标没移上去的人根本不会知道这里能点。 */
.cs-journal-fig::before {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 42%;
  background: linear-gradient(180deg, transparent, rgba(2,2,2,0.72));
  opacity: 0.9;
  transition: opacity .45s var(--ease);
  pointer-events: none;
  z-index: 1;
}
.cs-journal-badge {
  position: absolute;
  left: 50%;
  bottom: clamp(14px, 1.6vw, 22px);
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 100px;
  background: rgba(251, 251, 244, 0.94);
  color: #141210;
  font-family: var(--f-cjk);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  transition: background .35s var(--ease), color .35s var(--ease),
              transform .45s var(--ease), box-shadow .45s var(--ease);
  pointer-events: none;
}
.cs-journal-badge svg { flex-shrink: 0; }
.cs-journal-badge b { font-weight: 600; }
.cs-journal-badge span { font-weight: 400; opacity: 0.62; }
.cs-journal:hover .cs-journal-badge {
  background: var(--cs-accent);
  color: #fff;
  transform: translateX(-50%) translateY(-4px);
  box-shadow: 0 10px 26px rgb(var(--cs-accent-rgb) / 0.5);
}
.cs-journal:hover .cs-journal-badge span { opacity: 0.8; }
.cs-journal:hover .cs-journal-fig::before { opacity: 1; }

/* 进入视口时，三个标记依次弹一下，确保被看见 */
.cs-journal-badge.is-cue { animation: cs-badge-cue 1.5s var(--ease) 1; }
@keyframes cs-badge-cue {
  0%, 100% { box-shadow: 0 6px 20px rgba(0,0,0,0.4), 0 0 0 0 rgb(var(--cs-accent-rgb) / 0.5); }
  30%      { box-shadow: 0 6px 20px rgba(0,0,0,0.4), 0 0 0 14px rgb(var(--cs-accent-rgb) / 0); }
  55%      { box-shadow: 0 6px 20px rgba(0,0,0,0.4), 0 0 0 0 rgb(var(--cs-accent-rgb) / 0.5); }
  85%      { box-shadow: 0 6px 20px rgba(0,0,0,0.4), 0 0 0 14px rgb(var(--cs-accent-rgb) / 0); }
}
.cs-journal-meta { margin: 16px 0 0; }
/* 封面下面只留一行：刊名 + 这一期的主题。年份不写在这里——
   三本的出版年份不是「一年一本」，写上去反而制造疑问。 */
.cs-journal-n {
  font-family: var(--f-cjk);
  font-size: var(--fs-md);
  font-weight: 600;
  line-height: 1.5;
  color: var(--on-dark-1);
  margin: 0;
}

/* ── 印章：阳刻 / 阴刻 切换（手稿里的「黑白反白实验」） ── */
.cs-seal {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin: 32px 0 0;
}
.cs-seal-stage {
  position: relative;
  aspect-ratio: 1;
  border-radius: clamp(14px, 1.4vw, 18px);
  display: grid;
  place-items: center;
  padding: 14%;
  background: var(--cs-paper-2);
  transition: background .5s var(--ease);
}
/* 阴刻时底色换成主色，白字才立得住 */
.cs-seal-stage.is-inverse { background: var(--cs-accent); }
.cs-seal-stage img {
  width: 100%;
  display: block;
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.cs-seal-stage img.is-off { opacity: 0; transform: scale(.94); position: absolute; }
/* 切换按钮放在印章正下方——放在右侧文字上方时没人发现这里可以点 */
.cs-seal-left { display: flex; flex-direction: column; gap: 14px; }
.cs-seal-switch { display: flex; gap: 8px; margin: 0; }
.cs-seal-switch button { flex: 1; text-align: center; }
.cs-seal-switch button {
  font-family: var(--f-cjk);
  font-size: 14px;
  padding: 7px 15px;
  border-radius: 100px;
  border: 1px solid var(--cs-hair);
  background: transparent;
  color: var(--cs-ink-3);
  cursor: pointer;
  transition: all .3s var(--ease);
}
.cs-seal-switch button.is-active {
  border-color: rgb(var(--cs-accent-rgb) / 0.5);
  background: rgb(var(--cs-accent-rgb) / 0.08);
  color: var(--cs-accent-deep);
}
.cs-seal-keys { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; }
.cs-seal-key {
  font-family: var(--f-cjk);
  font-size: 13.5px;
  padding: 5px 13px;
  border-radius: 100px;
  border: 1px solid var(--cs-hair);
  color: var(--cs-ink-2);
}

/* ── 目录热区：hover 优先级 → 高亮真实目录页上对应的位置 ── */
.cs-tocmap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
  margin: 30px 0 0;
}
.cs-tocmap-fig {
  position: relative;
  border-radius: clamp(10px, 1vw, 14px);
  overflow: hidden;
  border: 1px solid var(--cs-hair);
  background: #fff;
  cursor: zoom-in;
}
.cs-tocmap-fig img { width: 100%; display: block; aspect-ratio: 1800 / 1187; }
/* 未高亮时压一层灰，让被点亮的区块跳出来 */
.cs-tocmap-fig::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(2, 2, 2, 0.5);
  opacity: 0;
  transition: opacity .45s var(--ease);
  pointer-events: none;
}
.cs-tocmap-fig.is-lit::after { opacity: 1; }
.cs-hot {
  position: absolute;
  border: 1.5px solid var(--cs-accent);
  border-radius: 4px;
  box-shadow: 0 0 0 9999px rgba(2, 2, 2, 0);
  opacity: 0;
  transform: scale(1.04);
  transition: opacity .4s var(--ease), transform .4s var(--ease);
  pointer-events: none;
  /* 高亮块自己要盖在灰罩之上 */
  z-index: 2;
  background: rgb(var(--cs-accent-rgb) / 0.1);
  backdrop-filter: brightness(1.9) saturate(1.15);
}
.cs-hot.is-on { opacity: 1; transform: scale(1); }
.cs-hot span {
  position: absolute;
  top: -11px;
  left: -1px;
  font-family: var(--f-mono, var(--f-body));
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--cs-accent);
  color: #fff;
  white-space: nowrap;
}
.cs-prios { display: flex; flex-direction: column; gap: 12px; }
.cs-prio {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  border: 1px solid var(--cs-hair);
  border-radius: clamp(10px, 1vw, 14px);
  background: transparent;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: border-color .35s var(--ease), background .35s var(--ease);
}
.cs-prio:hover,
.cs-prio.is-active {
  border-color: rgb(var(--cs-accent-rgb) / 0.45);
  background: rgb(var(--cs-accent-rgb) / 0.05);
}
.cs-prio-n {
  font-family: var(--f-display, var(--f-heading));
  font-size: clamp(24px, 2.2vw, 30px);
  line-height: 1;
  color: var(--cs-accent);
}
.cs-prio-n small {
  display: block;
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--cs-ink-3);
  margin-top: 5px;
}
.cs-prio h4 {
  font-family: var(--f-cjk);
  font-size: clamp(15.5px, 1.35vw, 17px);
  font-weight: 600;
  color: var(--cs-ink);
  margin: 2px 0 5px;
  line-height: 1.45;
}
.cs-prio p {
  font-family: var(--f-cjk);
  font-size: 15px;
  line-height: 1.75;
  color: var(--cs-ink-2);
  margin: 0;
}
.cs-prio p em { font-style: normal; font-weight: 600; color: var(--cs-accent-deep); }


.cs-art {
  position: relative;
  padding: 9px 0 9px 15px;
  border-bottom: 1px solid rgb(2 2 2 / 0.05);
  font-family: var(--f-cjk);
  font-size: 14px;
  line-height: 1.55;
  color: var(--cs-ink-2);
}
.cs-art:last-child { border-bottom: none; }
.cs-art::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 16px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgb(var(--cs-accent-rgb) / 0.55);
}
.cs-art i {
  font-style: normal;
  color: var(--cs-ink-3);
  font-size: var(--fs-xs);
  white-space: nowrap;
}


/* ── 印章式页码演示 ──
   点上一页 / 下一页，页码跟着变，印章按奇偶落到左下或右下角，
   演示的正是规范里那条「奇数页左对齐、偶数页右对齐，距边各 12mm」。 */
.cs-pagedemo { margin: 26px 0 0; }
.cs-pd-stage {
  position: relative;
  max-width: 340px;
  aspect-ratio: 210 / 297;
  border: 1px solid var(--cs-hair);
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 2px 6px rgba(2,2,2,0.06), 0 16px 34px rgba(2,2,2,0.07);
  overflow: hidden;
}
/* 版面示意：页眉红线 + 几行灰色文字块，够读者认出这是内页就行 */
.cs-pd-head {
  position: absolute;
  left: 8%; right: 8%; top: 7%;
  border-bottom: 1.5px solid var(--cs-accent);
  padding-bottom: 5px;
  font-family: var(--f-cjk);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cs-accent);
}
.cs-pd-lines { position: absolute; left: 8%; right: 8%; top: 17%; }
.cs-pd-lines i {
  display: block;
  height: 4px;
  border-radius: 2px;
  background: rgb(2 2 2 / 0.09);
  margin-bottom: 9px;
}
.cs-pd-num {
  position: absolute;
  bottom: 5.5%;
  width: 13.5%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  transition: left .55s var(--ease), right .55s var(--ease);
}
.cs-pd-num img { position: absolute; inset: 0; width: 100%; opacity: 0.34; }
.cs-pd-num b {
  position: relative;
  font-family: var(--f-cjk);
  font-size: clamp(13px, 1.2vw, 16px);
  font-weight: 600;
  color: var(--cs-ink);
}
.cs-pd-ctrl {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  flex-wrap: wrap;
}
.cs-pd-ctrl button {
  font-family: var(--f-cjk);
  font-size: 14px;
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--cs-hair);
  background: transparent;
  color: var(--cs-ink-2);
  cursor: pointer;
  transition: all .3s var(--ease);
}
.cs-pd-ctrl button:hover {
  border-color: rgb(var(--cs-accent-rgb) / 0.5);
  color: var(--cs-accent-deep);
}
.cs-pd-state {
  font-family: var(--f-cjk);
  font-size: 14px;
  color: var(--cs-ink-3);
}
.cs-pd-state b { color: var(--cs-accent-deep); font-weight: 600; }
.cs-pd-wrap {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
  align-items: center;
}


/* 大图收窄：规范图 / 手稿 / 时间线这类横图铺满整栏会把版面撑散，
   限宽居中，细节留给点击放大。 */
.cs-figure.is-compact {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}
.cs-figure.is-compact.is-narrow { max-width: 520px; }

/* ════════════════════════════════════════
   刊物阅读器 —— 整本翻页
   两页并排 + 一层绕书脊旋转的翻页元素。
   页面尺寸不写死：--pg-ar 是单页宽高比，各刊不同，由 JS 设进来；
   书高取「视口高」与「视口宽能容下两页」中较小的一个。
════════════════════════════════════════ */
.cs-reader {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  flex-direction: column;
  background: rgba(2, 2, 2, 0.94);
  backdrop-filter: blur(6px);
}
.cs-reader.is-open { display: flex; }

/* 左侧竖排刊物导航 —— 横排在左上角太像装饰，很多人不会当成导航。
   选中态用「半透明白底 + 白字」，不用红底红字：
   纯黑上压红底再压红字，刺眼且笔画糊在一起。 */
.cs-rd-rail {
  flex: 0 0 auto;
  width: 232px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-self: center;
}
.cs-rd-tabs { display: flex; flex-direction: column; gap: 6px; }
.cs-rd-tab {
  font-family: var(--f-cjk);
  font-size: var(--fs-base);
  font-weight: 600;
  line-height: 1.35;
  text-align: left;
  padding: 15px 18px;
  border-radius: 12px;
  border: 0;
  background: transparent;
  color: var(--on-dark-2);
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.cs-rd-tab:hover { background: rgba(251, 251, 244, 0.07); color: var(--on-dark-1); }
.cs-rd-tab.is-active {
  background: rgba(251, 251, 244, 0.14);
  color: #FFF;
}
.cs-rd-tab small {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--on-dark-3);
  margin-top: 5px;
}
.cs-rd-tab.is-active small { color: var(--on-dark-2); }
.cs-rd-close {
  position: absolute;
  top: 16px;
  right: clamp(14px, 2vw, 28px);
  z-index: 10;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(251, 251, 244, 0.18);
  background: transparent;
  color: rgba(251, 251, 244, 0.8);
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.cs-rd-close:hover { background: rgba(251, 251, 244, 0.1); }

/* 书台 */
.cs-rd-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 3vw, 44px);
  padding: 0 clamp(10px, 3vw, 48px);
  min-height: 0;
  overflow: hidden;
}
.cs-rd-book {
  --pg-ar: 0.758;
  --rail: 254px;   /* 左侧导航 210 + 间距 */
  /* 高度按「视口减去上下留白」算，不用 vh 硬写——短窗口下 vh 会撑出去 */
  --bh: min(calc(100vh - 150px), calc((100vw - var(--rail) - clamp(20px, 6vw, 96px)) / (2 * var(--pg-ar))));
  position: relative;
  height: var(--bh);
  width: calc(var(--bh) * var(--pg-ar) * 2);
  display: flex;
  perspective: 2600px;
  filter: drop-shadow(0 24px 60px rgba(0, 0, 0, 0.6));
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
  isolation: isolate;
}
.cs-rd-loading {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.92);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .18s ease, visibility .18s ease;
}
.cs-rd-book.is-loading .cs-rd-loading { opacity: 1; visibility: visible; }
.cs-rd-loading span {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(24, 24, 21, .14);
  border-top-color: var(--cs-accent);
  border-radius: 50%;
  animation: cs-rd-load .75s linear infinite;
}
@keyframes cs-rd-load { to { transform: rotate(360deg); } }
.cs-rd-pg {
  width: 50%;
  height: 100%;
  background: #fff;
  overflow: hidden;
  position: relative;
}
.cs-rd-pg img { width: 100%; height: 100%; display: block; }
.cs-rd-pg.is-blank { background: rgba(251, 251, 244, 0.06); }
/* 书脊阴影，两页之间那道折痕 */
.cs-rd-book::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 46px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(0,0,0,0.22) 44%, rgba(0,0,0,0.28) 50%, rgba(0,0,0,0.22) 56%, transparent);
  pointer-events: none;
  z-index: 4;
}

/* 翻动中的那一页 */
.cs-rd-flip {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  transform-style: preserve-3d;
  display: none;
  z-index: 5;
}
.cs-rd-flip.is-on { display: block; }
.cs-rd-flip.to-left  { left: 50%; transform-origin: left center; }
.cs-rd-flip.to-right { left: 0;   transform-origin: right center; }
.cs-rd-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  background: #fff;
  overflow: hidden;
}
.cs-rd-face img { width: 100%; height: 100%; display: block; }
.cs-rd-face.back { transform: rotateY(180deg); }

/* 点击区：左右各半页，角上给一个翻角提示 */
.cs-rd-hit {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  z-index: 6;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.cs-rd-hit.prev { left: 0; }
.cs-rd-hit.next { left: 50%; }
.cs-rd-hit::after {
  content: '';
  position: absolute;
  bottom: 0;
  width: 62px;
  height: 62px;
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.cs-rd-hit.next::after {
  right: 0;
  background: linear-gradient(225deg, rgba(255,255,255,0.9) 0 46%, rgba(0,0,0,0.16) 47%, transparent 54%);
}
.cs-rd-hit.prev::after {
  left: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.9) 0 46%, rgba(0,0,0,0.16) 47%, transparent 54%);
}
.cs-rd-hit:hover::after { opacity: 1; }
.cs-rd-hit[disabled] { cursor: default; }
.cs-rd-hit[disabled]::after { display: none; }

/* 底栏：页码 + 进度条 */
.cs-rd-bottom {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  padding: 14px clamp(14px, 3vw, 40px) 20px;
  color: var(--on-dark-2);
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
}
.cs-rd-nav {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(251, 251, 244, 0.18);
  background: transparent;
  color: rgba(251, 251, 244, 0.85);
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background .3s var(--ease);
}
.cs-rd-nav:hover:not([disabled]) { background: rgba(251, 251, 244, 0.12); }
.cs-rd-nav[disabled] { opacity: 0.28; cursor: default; }
.cs-rd-range {
  flex: 1;
  accent-color: var(--cs-accent);
  cursor: pointer;
  min-width: 0;
}
.cs-rd-count { font-variant-numeric: tabular-nums; white-space: nowrap; }
.cs-rd-count b { color: rgba(251, 251, 244, 0.95); font-weight: 600; }
.cs-rd-hint {
  white-space: nowrap;
  font-size: var(--fs-xs);
  color: var(--on-dark-3);
}

/* 首次进来的翻页引导 —— 压在合着的那半边书上。
   不做卡片、不写标题，只留一只手的方向示意和三种翻法，横排一行。 */
.cs-rd-coach {
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  z-index: 7;
  display: grid;
  place-content: center;
  gap: 22px;
  padding: 24px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .5s var(--ease);
}
.cs-rd-coach.is-on { opacity: 1; }
/* 一只手从右往左划，示意拖拽方向 */
.cs-rd-coach-hand {
  width: 52px;
  height: 52px;
  margin: 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(251, 251, 244, 0.12);
  color: var(--on-dark-1);
  animation: cs-rd-swipe 2.1s var(--ease) infinite;
}
@keyframes cs-rd-swipe {
  0%, 100% { transform: translateX(16px); opacity: 0.3; }
  35%      { transform: translateX(16px); opacity: 1; }
  75%      { transform: translateX(-16px); opacity: 1; }
  90%      { transform: translateX(-16px); opacity: 0; }
}
.cs-rd-coach ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
}
.cs-rd-coach li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-cjk);
  font-size: var(--fs-sm);
  color: var(--on-dark-2);
  white-space: nowrap;
}
.cs-rd-coach li i {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(251, 251, 244, 0.14);
  color: var(--on-dark-1);
  font-style: normal;
  font-size: var(--fs-xs);
}

@media (max-width: 768px) {
  .case-page.is-vision .cs-body {
    --cs-mobile-section-gap: 64px;
    --cs-mobile-content-gap: 32px;
  }
  /* 窄屏没有左侧空间，导航回到顶部横排，但保留「选中=红、未选中=白」 */
  .cs-rd-stage { flex-direction: column; gap: 12px; padding-top: 8px; }
  .cs-rd-rail {
    width: 100%;
    flex-direction: row;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
    padding: 0 12px;
    align-self: stretch;
  }
  .cs-rd-rail::-webkit-scrollbar { display: none; }
  .cs-rd-tabs { flex-direction: row; gap: 6px; }
  .cs-rd-tab { flex: 0 0 auto; padding: 9px 14px; font-size: 13.5px; border-radius: 100px; }
  .cs-rd-tab small { display: none; }
  .cs-rd-coach { width: 100%; }
  /* 手机上没有方向键，这一条去掉 */
  .cs-rd-coach li:last-child { display: none; }
  .cs-rd-book {
    --rail: 0px;
    /* 窄屏一次只看一页，两页并排每页会小到看不清 */
    --bh: min(calc(100dvh - 210px), calc((100vw - 32px) / var(--pg-ar)));
    width: min(calc(var(--bh) * var(--pg-ar)), calc(100vw - 32px));
    max-width: calc(100vw - 32px);
  }
  .cs-rd-book.is-single .cs-rd-pg.is-left { display: none; }
  .cs-rd-book::after { display: none; }
  .cs-rd-book .cs-rd-pg { width: 100%; }
  /* 单页模式：翻动的那一页要盖满整个可见页，不能还是半页宽 */
  .cs-rd-flip,
  .cs-rd-flip.to-left,
  .cs-rd-flip.to-right { width: 100%; left: 0; }
  /* 点击区仍按左右半边分，方便单手点 */
  .cs-rd-hit { width: 50%; }
  .cs-rd-hit.next { left: 50%; }
  .cs-rd-tab small { display: none; }
  /* 底栏一行放不下：提示文字收起，其余允许换行 */
  .cs-rd-hint { display: none; }
  .cs-rd-bottom { flex-wrap: wrap; padding-bottom: 14px; }
  .cs-rd-top { padding: 10px 12px; gap: 10px; }
  .cs-rd-tab { font-size: 13px; padding: 7px 13px; }
}


/* ────────────────────────────────────────
   进场（JS 未跑时不隐藏内容）
──────────────────────────────────────── */
.cs-reveal { will-change: transform, opacity; }

/* ────────────────────────────────────────
   RESPONSIVE
──────────────────────────────────────── */
@media (max-width: 1024px) {
  .cs-palette { grid-template-columns: 1fr; }
  .cs-palette-preview { max-width: 300px; position: static; }
  .cs-specs { grid-template-columns: repeat(2, 1fr); }
  .cs-hub { gap: 14px 120px; }
  .cs-hub-core { width: 104px; height: 104px; }
  /* 目录热区在窄屏上没法边看图边 hover，改成上下堆叠，
     并把热区高亮关掉（见 case.js 的 matchMedia 判断） */
  .cs-tocmap { grid-template-columns: 1fr; }
  .cs-seal { grid-template-columns: 1fr; }
  .cs-seal-stage { max-width: 260px; }
}

@media (max-width: 768px) {
  .cs-reveal::after { height: 30%; }

  .cs-hero-meta,
  .cs-metrics-inner { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .cs-cards,
  .cs-specs,
  .cs-delivery,
  .cs-docs,
  .cs-minutes-body { grid-template-columns: 1fr; }
  .cs-compare,
  .cs-stages,
  .cs-phases,
  .cs-layouts { grid-template-columns: 1fr; }
  /* .cs-shift 上下堆叠即可：左右两栏不是同级重复块，是「问题→解法」的
     单向关系，横向滚动反而会拆散这层因果。 */
  /* 单列时表头不再相邻，各自恢复完整圆角；DOM 顺序是「表头 表头 正文 正文」
     （为了让两个表头在 PC 上连成一条带），所以这里必须用 order 重新交错，
     否则手机上会变成两个表头挨在一起。 */
  /* 面板组在窄屏退回纵向堆叠：横向钉住在手机上滑起来不稳，
     而且面板里的图文两栏也塞不下。 */
  .cs-deck { overflow: visible; }
  /* 单列堆叠时没有滑出的边，遮罩会白白把首尾两张切掉一块 */
  .cs-deck-view { -webkit-mask-image: none; mask-image: none; }
  .cs-deck-track {
    flex-direction: column;
    width: auto;
    gap: 18px;
    padding: 24px var(--gutter) 0;
    transform: none;
  }
  .cs-panel, .cs-panel.is-wide {
    flex-basis: auto;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .cs-panel-fig .cs-figure img { max-height: 42vh; }
  .cs-deck-steps { display: none; }

  .cs-plates[data-hscroll-track] > .cs-plate { flex: 0 0 min(56vw, 220px); }


  .cs-line { padding-left: 32px; }
  .cs-line-rail { left: 5px; }
  .cs-line-dot { left: -32px; width: 10px; height: 10px; }

  .cs-shift { grid-template-columns: 1fr; }
  /* order 必须按位置判定，不能按 is-mine——02 的主色一侧在左，
     按 is-mine 排会把表头和另一栏的内容配错。 */
  .cs-shift-label { border-radius: 4px; }
  .cs-shift-label:first-of-type  { order: 1; }
  .cs-shift-body:first-of-type   { order: 2; padding-right: 0; }
  .cs-shift-label:nth-of-type(2) { order: 3; margin-top: 30px; }
  .cs-shift-body:last-of-type    { order: 4; }
  .cs-shift-goals li { grid-template-columns: 1fr; gap: 4px; padding-right: 4px; }
  .cs-compare-col + .cs-compare-col,
  .cs-stage + .cs-stage,
  .cs-phase + .cs-phase { border-left: none; border-top: 1px solid var(--cs-hair); }
  .cs-flip-wrap { grid-template-columns: 1fr; }
  .cs-flip { max-width: 330px; margin: 0 auto; }
  .cs-hub { grid-template-columns: 1fr; gap: 12px; }
  .cs-hub-svg { display: none; }
  .cs-hub-core { position: static; transform: none; width: 100%; height: auto; padding: 18px; border-radius: 6px; margin-top: 12px; }
  .cs-grid13 { grid-template-columns: repeat(2, 1fr); }
  /* 两张一组的图在手机上并排放小，细节交给点击放大——
     一张一张竖着堆，两张就能吃掉一屏半。 */
  .cs-figure-pair { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cs-figure-pair .cs-figure-cap { padding: 9px 10px; font-size: var(--fs-xs); flex-direction: column; align-items: flex-start; gap: 4px; }
  .cs-figure-pair .cs-figure-cap i { font-size: var(--fs-xs); }
  /* 调研照片改 2×2 */
  .cs-docs { grid-template-columns: 1fr 1fr !important; gap: 10px; }
  .cs-doc-cap { padding: 9px 11px; font-size: var(--fs-xs); }
  .cs-lesson { grid-template-columns: 1fr; gap: 10px; }
  .cs-lesson-n { font-size: 38px; }

  /* 页尾行动区：联系方式优先，其次问 AI，最后总结 */
  .cs-outro-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cs-outro-center { order: 1; justify-self: stretch; }
  .cs-outro-right  { order: 2; }
  .cs-outro-left   { order: 3; justify-content: center; }
  .cs-cta-card { width: 100%; }
  .cs-cta-br { display: none; }
  .cs-cta-controls { flex-direction: column; align-items: stretch; }
  .cs-cta-value { text-align: center; }
  .cs-cta-btn { justify-content: center; padding: 0 22px; }
  /* 面板改为居中定位，避免贴着最底部按钮向上弹时越出屏幕 */
  .cs-summary {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translate(-50%, 10px);
    width: calc(100vw - 32px);
  }
  .cs-summary.is-open { transform: translate(-50%, 0); }
  .cs-lb { padding: 60px 16px 24px; }
  .cs-lb-prev { left: 6px; }
  .cs-lb-next { right: 6px; }
  .cs-stats { gap: 26px; }

  /* 内刊案例的板块 */
  .cs-journals-inner { grid-template-columns: 1fr; gap: 26px; }
  .cs-journal-fig { max-width: 320px; }.cs-pd-wrap { grid-template-columns: 1fr; }
  .cs-pd-stage { max-width: 300px; }

}

@media (prefers-reduced-motion: reduce) {
  .cs-wall-row { animation: none !important; }
}

/* ============================================================
   《昂楷视界》后半段叙事重构
   04 是建立规则的视觉实验室；05 展示内容架构；06 验证体系；
   07 回到生产现场；08 用结果收束。每一段使用不同的阅读节奏。
   ============================================================ */

/* 04 / 视觉实验室 */
.is-system-lab {
  --lab-bg: #11100f;
  --lab-panel: #1b1a18;
  position: relative;
  padding-top: clamp(48px, 5vw, 76px);
  padding-bottom: clamp(24px, 3vw, 42px);
  background:
    radial-gradient(circle at 78% 4%, rgba(230, 0, 18, 0.18), transparent 31%),
    linear-gradient(135deg, #151311 0%, var(--lab-bg) 64%);
  color: #fbfbf4;
}
.is-system-lab::before {
  content: 'SYSTEM / 01—05';
  position: absolute;
  right: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  top: 34px;
  font-family: var(--f-body);
  font-size: 11px;
  letter-spacing: .18em;
  color: rgba(251, 251, 244, .28);
}
.is-system-lab .cs-num,
.is-system-lab .cs-lede { color: rgba(251, 251, 244, .55); }
.is-system-lab .cs-title { color: #fbfbf4; }
.is-system-lab .cs-title em { color: #ff4450; }
.is-system-lab .cs-deck-step { color: rgba(251, 251, 244, .34); }
.is-system-lab .cs-deck-step.is-on { color: #fff; }
.is-system-lab .cs-deck-step.is-on i { color: #ff4450; }
.is-system-lab .cs-deck-rail { background: rgba(251, 251, 244, .12); }
.is-system-lab .cs-deck-rail b { background: linear-gradient(90deg, #e60012, #ff6670); }
.is-system-lab .cs-deck-track { counter-reset: lab-panel; padding-top: 28px; }
.is-system-lab .cs-panel {
  counter-increment: lab-panel;
  position: relative;
  min-height: min(61vh, 600px);
  overflow: hidden;
  color: #fbfbf4;
  background:
    linear-gradient(145deg, rgba(255,255,255,.045), transparent 42%),
    var(--lab-panel);
  border: 1px solid rgba(251, 251, 244, .1);
  border-radius: 22px;
  box-shadow: 0 28px 70px rgba(0,0,0,.28);
  opacity: .42;
  transform: scale(.965);
  transition: opacity .45s var(--ease), transform .55s var(--ease), border-color .45s var(--ease);
}
.is-system-lab .cs-panel::before {
  content: '0' counter(lab-panel);
  position: absolute;
  right: 20px;
  top: -18px;
  z-index: 0;
  font-family: var(--f-heading);
  font-size: clamp(100px, 12vw, 170px);
  line-height: 1;
  color: rgba(251, 251, 244, .035);
  pointer-events: none;
}
.is-system-lab .cs-panel.is-active {
  opacity: 1;
  transform: scale(1);
  border-color: rgba(255, 59, 71, .38);
}
.is-system-lab .cs-panel-fig,
.is-system-lab .cs-panel-txt { position: relative; z-index: 1; }
.is-system-lab .cs-panel-txt h3,
.is-system-lab .cs-panel-txt strong,
.is-system-lab .cs-specs-mini.is-block b { color: #fbfbf4; }
.is-system-lab .cs-panel-txt p,
.is-system-lab .cs-specs-mini span { color: rgba(251, 251, 244, .65); }
.is-system-lab .cs-specs-mini b,
.is-system-lab .cs-seal-now { color: #ff5c67 !important; }
.is-system-lab .cs-specs-mini li { border-color: rgba(251, 251, 244, .1); }
.is-system-lab .cs-chain,
.is-system-lab .cs-seal.is-inline,
.is-system-lab .cs-prio { background: rgba(251, 251, 244, .055); }
.is-system-lab .cs-chain { color: rgba(251, 251, 244, .48) !important; }
.is-system-lab .cs-figure,
.is-system-lab .cs-tocmap-fig { border: 0; background: #f7f4ed; }
.is-system-lab .cs-figure-cap { background: rgba(251, 251, 244, .94); color: #111; }
.is-system-lab .cs-panel-fig .cs-figure img,
.is-system-lab .cs-panel-fig .cs-tocmap-fig img { max-height: 48vh; }
.is-system-lab .cs-prio { border-color: rgba(251, 251, 244, .08); }
.is-system-lab .cs-prio h4 { color: #fbfbf4; }
.is-system-lab .cs-prio p { color: rgba(251, 251, 244, .55); }
.is-system-lab .cs-prio.is-active { border-color: rgba(255, 59, 71, .65); background: rgba(230,0,18,.12); }
.is-system-lab .cs-pd-ctrl button { border-color: rgba(251,251,244,.2); color: rgba(251,251,244,.72); }
.is-system-lab .cs-pd-state { color: rgba(251,251,244,.48); }
.is-system-lab .cs-pd-state b { color: #ff5c67; }

/* 05 / 可切换的章节舞台 */
.is-architecture {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(70px, 7vw, 104px);
  padding-bottom: clamp(76px, 8vw, 118px);
  background:
    radial-gradient(circle at 72% 50%, rgba(230,0,18,.06), transparent 33%),
    var(--cs-paper);
}


/* 06 / 体系落地，改成占满内容宽度的编辑现场 */
.is-evolution {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(74px, 7vw, 108px);
  padding-bottom: clamp(74px, 7vw, 108px);
  background: #e8e2d7;
}


/* 05 / 校对室 */
.is-proofroom {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(78px, 8vw, 118px);
  padding-bottom: clamp(82px, 8vw, 124px);
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px),
    radial-gradient(circle at 82% 28%, rgba(230,0,18,.16), transparent 28%),
    #11100f;
  background-size: 42px 42px, 42px 42px, auto, auto;
  color: #fbfbf4;
}
.is-proofroom .cs-num,
.is-proofroom .cs-lede { color: rgba(251,251,244,.58); }
.is-proofroom .cs-title,
.is-proofroom .cs-line-body h3,
.is-proofroom .cs-line-body strong { color: #fbfbf4; }
.is-proofroom .cs-title em,
.is-proofroom .cs-line-item.is-on .cs-line-k { color: #ff515d; }
.is-proofroom .cs-line { max-width: 1100px; margin: 50px auto 0; }
.is-proofroom .cs-line-rail { background: rgba(251,251,244,.12); }
.is-proofroom .cs-line-item { padding-bottom: clamp(42px, 6vw, 74px); }
.is-proofroom .cs-line-body {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid rgba(251,251,244,.1);
  border-radius: 22px;
  background: rgba(251,251,244,.045);
  box-shadow: 0 24px 50px rgba(0,0,0,.14);
  transition: border-color .45s var(--ease), transform .45s var(--ease), background .45s var(--ease);
}
.is-proofroom .cs-line-body::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(110deg, transparent 40%, rgba(230,0,18,.08) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 1.2s var(--ease);
}
.is-proofroom .cs-line-item.is-on .cs-line-body {
  border-color: rgba(255,81,93,.4);
  background: rgba(251,251,244,.065);
  transform: translateX(8px);
}
.is-proofroom .cs-line-item.is-on .cs-line-body::after { transform: translateX(120%); }
.is-proofroom .cs-line-body p,
.is-proofroom .cs-specs-mini span,
.is-proofroom .cs-quote-soft { color: rgba(251,251,244,.64); }
.is-proofroom .cs-line-k { color: rgba(251,251,244,.4); }
.is-proofroom .cs-plate b { color: rgba(251,251,244,.76); }
.is-proofroom .cs-plate img { border-color: rgba(251,251,244,.12); }
.is-proofroom .cs-stat-n { color: #fbfbf4; }
.is-proofroom .cs-stat-l { color: rgba(251,251,244,.5); }
.is-proofroom .cs-shift-label { color: #fbfbf4; background: rgba(251,251,244,.08); }
.is-proofroom .cs-shift-label.is-mine { background: rgba(230,0,18,.55); }
.is-proofroom .cs-shift-body { border-color: rgba(251,251,244,.1); }
.is-proofroom .cs-shift-goals li { border-color: rgba(251,251,244,.1); }
.is-proofroom .cs-shift-goals b { color: #ff5d68; }

/* 06 / 结果收束 */
.is-outcome {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(76px, 8vw, 120px);
  padding-bottom: clamp(80px, 9vw, 132px);
  background: #e60012;
  color: #fff;
}
.is-outcome .cs-num { color: rgba(255,255,255,.6); }
.is-outcome .cs-title,
.is-outcome .cs-title em { color: #fff; }
.is-outcome .cs-lessons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 1.8vw, 24px);
  margin-top: 42px;
}
.is-outcome .cs-lesson {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(24px, 3vw, 38px);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 20px;
  background: rgba(89,0,7,.12);
  transition: transform .4s var(--ease), background .4s var(--ease);
}
.is-outcome .cs-lesson:first-child { padding-top: clamp(24px, 3vw, 38px); border-top: 1px solid rgba(255,255,255,.22); }
.is-outcome .cs-lesson:hover { transform: translateY(-8px); background: rgba(89,0,7,.22); }
.is-outcome .cs-lesson-n { color: rgba(255,255,255,.34); }
.is-outcome .cs-lesson h3,
.is-outcome .cs-lesson strong { color: #fff; }
.is-outcome .cs-lesson p { color: rgba(255,255,255,.78); font-size: 17px; line-height: 1.8; }
.is-outcome > .cs-quote-soft {
  max-width: 960px;
  margin: clamp(42px, 5vw, 72px) 0 0;
  padding: 0;
  border: 0;
  background: none;
  font-family: var(--f-cjk);
  font-size: clamp(25px, 3.2vw, 42px);
  line-height: 1.45;
  color: rgba(255,255,255,.76);
}
.is-outcome > .cs-quote-soft em { color: #fff; }

@media (max-width: 900px) {
  .is-outcome .cs-lessons { grid-template-columns: 1fr; }
  .is-outcome .cs-lesson { min-height: 0; }
}

@media (max-width: 768px) {
  .is-system-lab::before { display: none; }
  .is-system-lab .cs-panel { min-height: 0; opacity: 1; transform: none; border-radius: 16px; }
  .is-system-lab .cs-panel::before { font-size: 96px; top: -8px; }
  .is-system-lab .cs-deck-track { padding-top: 22px; }


  .is-proofroom .cs-line { margin-top: 30px; }
  .is-proofroom .cs-line-body { padding: 22px; border-radius: 16px; }
  .is-proofroom .cs-line-item.is-on .cs-line-body { transform: none; }
}

@media (prefers-reduced-motion: reduce) {.is-system-lab .cs-panel,
.is-proofroom .cs-line-body,
.is-outcome .cs-lesson { transition: none !important; }
}

/* ============================================================
   《昂楷视界》后半段：米白编辑版
   整页只使用纸张色阶。层次来自图片比例、排版、留白和滚动节奏，
   刊物红仅用于进度、编号与极少量强调。
   ============================================================ */

/* 04 / 规则系统：统一为 16:9 媒体 + 正文 + 分割线的编辑流。 */
.case-page.is-vision .is-system-lab {
  padding-top: clamp(64px, 6vw, 92px);
  padding-bottom: clamp(42px, 5vw, 72px);
  overflow: visible;
  background: var(--cs-paper);
  color: var(--cs-ink);
}
.case-page.is-vision .is-system-lab::before { display: none; }
.case-page.is-vision .is-system-lab .cs-num,
.case-page.is-vision .is-system-lab .cs-panel-txt p,
.case-page.is-vision .is-system-lab .cs-specs-mini span,
.case-page.is-vision .is-system-lab .cs-prio p,
.case-page.is-vision .is-system-lab .cs-chain { color: var(--cs-ink-2) !important; }
.case-page.is-vision .is-system-lab .cs-title,
.case-page.is-vision .is-system-lab .cs-panel-txt h3,
.case-page.is-vision .is-system-lab .cs-panel-txt strong,
.case-page.is-vision .is-system-lab .cs-prio h4,
.case-page.is-vision .is-system-lab .cs-specs-mini.is-block b { color: var(--cs-ink); }
.case-page.is-vision .is-system-lab .cs-title em,
.case-page.is-vision .is-system-lab .cs-specs-mini b,
.case-page.is-vision .is-system-lab .cs-seal-now { color: var(--cs-accent-deep) !important; }
.case-page.is-vision .is-system-lab .cs-deck-view {
  overflow: visible;
  -webkit-mask-image: none;
  mask-image: none;
}
.case-page.is-vision .is-system-lab .cs-deck-track {
  display: grid;
  width: auto;
  max-width: var(--cs-max);
  margin: 0 auto;
  gap: 0;
  padding: clamp(32px, 4vw, 52px) var(--gutter) 0;
  transform: none !important;
  will-change: auto;
}
.case-page.is-vision .is-system-lab .cs-panel {
  grid-template-columns: minmax(0, 1.16fr) minmax(330px, .84fr);
  gap: clamp(28px, 4vw, 58px);
  width: auto;
  max-width: none;
  min-height: 0;
  padding: clamp(38px, 5vw, 64px) 0;
  background: transparent;
  border: 0;
  border-bottom: 0;
  border-radius: 0;
  box-shadow: none;
  color: var(--cs-ink);
  opacity: 1;
  transform: none;
}
.case-page.is-vision .is-system-lab .cs-panel:not(:last-child) { border-bottom: 1px solid var(--cs-hair); }
.case-page.is-vision .is-system-lab .cs-panel::before { display: none; }
.case-page.is-vision .is-system-lab .cs-panel.is-active {
  opacity: 1;
  transform: none;
}
.case-page.is-vision .is-system-lab .cs-chain,
.case-page.is-vision .is-system-lab .cs-seal.is-inline,
.case-page.is-vision .is-system-lab .cs-prio {
  padding-inline: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.case-page.is-vision .is-system-lab .cs-prio.is-active {
  background: transparent;
  border-color: transparent;
}
.case-page.is-vision .is-system-lab .cs-specs-mini li { border: 0; }
.case-page.is-vision .is-system-lab .cs-figure,
.case-page.is-vision .is-system-lab .cs-tocmap-fig {
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.case-page.is-vision .is-system-lab .cs-panel-fig .cs-figure img,
.case-page.is-vision .is-system-lab .cs-panel-fig .cs-tocmap-fig img {
  width: 100%;
  height: 100%;
  max-height: none;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
  background: var(--cs-paper);
}
.case-page.is-vision .is-system-lab .cs-figure.is-trimmed img { transform: scale(1.012); }
.case-page.is-vision .is-system-lab .cs-figure:hover { box-shadow: none; }
.case-page.is-vision .is-system-lab .cs-pd-ctrl button { border-color: var(--cs-hair); color: var(--cs-ink-2); }
.case-page.is-vision .is-system-lab .cs-pd-state { color: var(--cs-ink-3); }
.case-page.is-vision .is-system-lab .cs-pd-state b { color: var(--cs-accent-deep); }

/* 05 / 内容架构：真实跨页是主角，说明只做一张纸签 */
.case-page.is-vision .is-architecture {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(78px, 8vw, 118px);
  padding-bottom: clamp(86px, 9vw, 132px);
  background: var(--cs-paper);
}


/* 06 / 延展：浅色编辑台，图片切换但不换页面色调 */
.case-page.is-vision .is-evolution {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(84px, 8vw, 124px);
  padding-bottom: clamp(84px, 8vw, 124px);
  background: var(--cs-paper-2);
}


/* 05 / 校对与印刷：回到纸张式时间线，不做深色卡片墙 */
.case-page.is-vision .is-proofroom {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  padding-top: clamp(86px, 9vw, 132px);
  /* 下一节（.is-outcome）底色与这里完全相同，两边各留 130px 会拼出
     一块 260px 的空洞。相接的这一侧收到常规节奏附近即可。 */
  padding-bottom: clamp(52px, 5vw, 72px);
  background: var(--cs-paper);
  color: var(--cs-ink);
}
/* 时间轴最后一项不需要再垫一段：区块自己的下内边距已经够了 */
.case-page.is-vision .is-proofroom .cs-line-item:last-child { padding-bottom: 0; }
.case-page.is-vision .is-proofroom .cs-num,
.case-page.is-vision .is-proofroom .cs-lede,
.case-page.is-vision .is-proofroom .cs-line-body p,
.case-page.is-vision .is-proofroom .cs-specs-mini span,
.case-page.is-vision .is-proofroom .cs-quote-soft { color: var(--cs-ink-2); }
.case-page.is-vision .is-proofroom .cs-title,
.case-page.is-vision .is-proofroom .cs-line-body h3,
.case-page.is-vision .is-proofroom .cs-line-body strong { color: var(--cs-ink); }
.case-page.is-vision .is-proofroom .cs-title em,
.case-page.is-vision .is-proofroom .cs-line-item.is-on .cs-line-k { color: var(--cs-accent-deep); }
.case-page.is-vision .is-proofroom .cs-line-k {
  margin-bottom: 14px;
  font-size: clamp(24px, 2.7vw, 36px);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.25;
}
.case-page.is-vision .is-proofroom .cs-line { max-width: 1040px; margin: 54px auto 0; }
.case-page.is-vision .is-proofroom .cs-line-rail { background: var(--cs-hair); }
.case-page.is-vision .is-proofroom .cs-line-item {
  margin-bottom: clamp(24px, 3vw, 42px);
  padding-bottom: clamp(24px, 3vw, 42px);
  border-bottom: 1px solid var(--cs-hair);
}
.case-page.is-vision .is-proofroom .cs-line-item:last-child {
  margin-bottom: 0;
  border-bottom: 0;
}
.case-page.is-vision .is-proofroom .cs-line-body {
  padding: 0 0 clamp(24px, 3vw, 38px);
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.case-page.is-vision .is-proofroom .cs-line-item:last-child .cs-line-body { border-bottom: 0; }
.case-page.is-vision .is-proofroom .cs-line-item.is-on .cs-line-body {
  transform: none;
  border-color: var(--cs-hair);
  background: transparent;
}
.case-page.is-vision .is-proofroom .cs-line-body::after { display: none; }
.case-page.is-vision .is-proofroom .cs-plate b {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--cs-ink-3);
}
.case-page.is-vision .is-proofroom .cs-plate img {
  border: 0;
  border-radius: 0;
}
.case-page.is-vision .is-proofroom .cs-stat-n { color: var(--cs-ink); }
.case-page.is-vision .is-proofroom .cs-stat-l { color: var(--cs-ink-3); }
.case-page.is-vision .is-proofroom .cs-shift-label { color: var(--cs-ink); background: var(--cs-paper-2); }
.case-page.is-vision .is-proofroom .cs-shift-label.is-mine { color: var(--cs-ink); background: var(--cs-paper-3); }
.case-page.is-vision .is-proofroom .cs-shift-body,
.case-page.is-vision .is-proofroom .cs-shift-goals li { border-color: var(--cs-hair); }
.case-page.is-vision .is-proofroom .cs-shift-goals b { color: var(--cs-accent-deep); }

/* 06–07 / 总结与能力：统一为无底色的分割线列表。 */
.case-page.is-vision .is-outcome {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  /* 上接 05、下接 07，三节同底色，靠间距分节即可，不用堆到 140px */
  padding-top: clamp(52px, 5vw, 72px);
  padding-bottom: clamp(52px, 5vw, 72px);
  background: var(--cs-paper);
  color: var(--cs-ink);
}
.case-page.is-vision .is-outcome .cs-num { color: var(--cs-ink-3); }
.case-page.is-vision .is-outcome .cs-title { color: var(--cs-ink); }
.case-page.is-vision .is-outcome .cs-lessons {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(28px, 3.5vw, 48px);
  border: 0;
}
.case-page.is-vision .is-outcome .cs-lesson,
.case-page.is-vision .is-outcome .cs-lesson:first-child {
  min-height: 0;
  padding: clamp(28px, 3vw, 42px);
  border: 0;
  border-left: 1px solid var(--cs-hair);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--cs-ink);
}
.case-page.is-vision .is-outcome .cs-lesson:first-child { border-left: 0; }
.case-page.is-vision .is-outcome .cs-lesson:hover { transform: none; background: transparent; }
.case-page.is-vision .is-outcome .cs-lesson h3,
.case-page.is-vision .is-outcome .cs-lesson strong { color: var(--cs-ink); }
.case-page.is-vision .is-outcome .cs-lesson p { color: var(--cs-ink-2); font-size: 17px; line-height: 1.82; }
.case-page.is-vision .is-capabilities {
  max-width: none;
  padding-inline: max(var(--gutter), calc((100vw - var(--cs-max)) / 2 + var(--gutter)));
  background: var(--cs-paper);
}
.case-page.is-vision .is-capabilities .cs-title { color: var(--cs-ink); }
.case-page.is-vision .cs-outro { border-top: 0; }
.case-page.is-vision .cs-only-mobile { display: none; }

/* 本页以纸面排版为主，图片和并列能力不再套独立卡片。 */
.case-page.is-vision .cs-doc {
  border: 0;
  border-radius: 0;
  background: transparent;
}
.case-page.is-vision .cs-doc:hover {
  transform: none;
  box-shadow: none;
}
.case-page.is-vision .cs-doc-cap {
  padding-inline: 0;
  border-top: 0;
}
.case-page.is-vision .cs-audience-pin .cs-facets {
  gap: clamp(28px, 4vw, 64px);
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.case-page.is-vision .cs-audience-pin .cs-facet,
.case-page.is-vision .cs-audience-pin .cs-facet + .cs-facet {
  padding-inline: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.case-page.is-vision .cs-capability-list .cs-facets {
  gap: 0;
  margin-top: clamp(28px, 3.5vw, 48px);
  border-top: 0;
  border-right: 0;
  border-bottom: 0;
  border-left: 0;
  border-radius: 0;
  overflow: visible;
}
.case-page.is-vision .cs-capability-list .cs-facet {
  padding: clamp(26px, 3vw, 40px);
  border-radius: 0;
  background: transparent;
}
.case-page.is-vision .cs-capability-list .cs-facet,
.case-page.is-vision .cs-capability-list .cs-facet + .cs-facet {
  border-left: 1px solid var(--cs-hair);
}
.case-page.is-vision .cs-capability-list .cs-facet:first-child { border-left: 0; }

@media (max-width: 900px) {
  .case-page.is-vision .is-outcome .cs-lessons { grid-template-columns: 1fr; }
  .case-page.is-vision .is-outcome .cs-lesson,
  .case-page.is-vision .is-outcome .cs-lesson:first-child {
    min-height: 0;
    border-left: 0;
    border-bottom: 1px solid var(--cs-hair);
  }
  .case-page.is-vision .is-outcome .cs-lesson:last-child { border-bottom: 0; }
}

@media (max-width: 768px) {
  /* 手机内容不是桌面稿的缩放版：收紧字号，并删掉依赖桌面页内导航的章节编号。 */
  /* 礼盒在手机上就是一块真正的 16:9 画布；它进入视口时立即推进，
     不使用 sticky 轨道，也不额外制造滚动占位。 */
  .case-page.is-vision .cs-reveal-scroll.is-mobile-scrub {
    height: auto;
  }
  .case-page.is-vision .cs-reveal-scroll.is-mobile-scrub > .cs-reveal {
    position: relative;
    top: auto;
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
  .case-page.is-vision .cs-reveal-scroll.is-mobile-scrub .cs-reveal-video {
    width: 100%;
    height: 100%;
    max-height: none;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    object-position: center;
    background: transparent;
  }

  /* 三本刊物在桌面端是主视觉，手机端只是进入阅读器的紧凑索引。 */
  .case-page.is-vision .cs-journals { padding: 24px 12px 26px; }
  .case-page.is-vision .cs-journals-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .case-page.is-vision .cs-journal-fig { max-width: none; border-radius: 3px; }
  .case-page.is-vision .cs-journal-badge {
    bottom: 7px;
    gap: 3px;
    padding: 5px 7px;
    font-size: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, .34);
  }
  .case-page.is-vision .cs-journal-badge svg,
  .case-page.is-vision .cs-journal-badge span { display: none; }
  .case-page.is-vision .cs-journal-meta { margin-top: 8px; }
  .case-page.is-vision .cs-journal-n {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    font-size: 11px;
    line-height: 1.45;
  }

  .case-page.is-vision .cs-hero-title { font-size: 29px; line-height: 1.2; margin-bottom: 16px; }
  .case-page.is-vision .cs-hero-sub { font-size: 15px; line-height: 1.72; margin-bottom: 22px; }
  .case-page.is-vision .cs-body > .cs-section > .cs-title,
  .case-page.is-vision .cs-deck-head > .cs-title,
  .case-page.is-vision .cs-mobile-pin-preview > .cs-title {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--cs-ink);
  }
  .case-page.is-vision .cs-body .cs-title em {
    display: block;
    color: var(--cs-accent-deep);
  }
  .case-page.is-vision .cs-lede { font-size: 15.5px; line-height: 1.72; margin-top: 14px; }
  .case-page.is-vision .cs-sub {
    margin-top: var(--cs-mobile-content-gap);
    margin-bottom: 0;
    font-size: 16px;
  }
  .case-page.is-vision .cs-body .cs-num { display: none; }
  .case-page.is-vision .cs-body > .cs-section,
  .case-page.is-vision .cs-body > .cs-deck {
    padding-top: var(--cs-mobile-section-gap);
    padding-bottom: 0;
  }
  .case-page.is-vision .cs-panel-txt h3,
  .case-page.is-vision .cs-lesson h3,
  .case-page.is-vision .cs-facet h4 { font-size: 20px; line-height: 1.35; }
  .case-page.is-vision .cs-facet p,
  .case-page.is-vision .cs-shift-body p,
  .case-page.is-vision .cs-shift-flaws li,
  .case-page.is-vision .cs-shift-goals span { font-size: 14px; line-height: 1.68; }

  /* 01 战略诊断：手机按阅读顺序自然排布，不复制桌面的四栏矩阵。 */
  .case-page.is-vision .is-strategy { padding-bottom: 0; }
  .case-page.is-vision .cs-strategy {
    margin-top: 32px;
  }
  .case-page.is-vision .cs-strategy-head {
    display: block;
    padding: 26px 0 22px;
  }
  .case-page.is-vision .cs-strategy-kicker {
    font-size: 12px;
  }
  .case-page.is-vision .cs-strategy-kicker span {
    display: inline;
    margin: 0 0 0 8px;
    font-size: 9px;
  }
  .case-page.is-vision .cs-strategy-head h3,
  .case-page.is-vision .cs-strategy-brief-intro h3 {
    margin-top: 20px;
    font-size: 21px;
    line-height: 1.38;
  }
  .case-page.is-vision .cs-strategy-head h3 + p,
  .case-page.is-vision .cs-strategy-brief-intro h3 + p {
    margin-top: 10px;
    font-size: 14px;
    line-height: 1.68;
  }
  .case-page.is-vision .cs-strategy-diagnosis {
    grid-template-columns: 1fr;
    border-radius: 7px;
  }
  .case-page.is-vision .cs-strategy-card {
    min-height: 0;
    padding: 20px;
    border-right: 0;
    border-bottom: 1px solid var(--cs-hair);
    background: transparent;
  }
  .case-page.is-vision .cs-strategy-card:last-child { border-bottom: 0; }
  .case-page.is-vision .cs-strategy-card::before { display: none; }
  .case-page.is-vision .cs-strategy-card header {
    gap: 9px;
    margin-bottom: 12px;
  }
  .case-page.is-vision .cs-strategy-card h4,
  .case-page.is-vision .cs-strategy-pillar h4 {
    font-size: 17px;
  }
  .case-page.is-vision .cs-strategy-card > p {
    font-size: 14px;
    line-height: 1.68;
  }
  .case-page.is-vision .cs-strategy-card strong {
    margin-top: 16px;
    padding-top: 0;
    font-size: 12.5px;
  }
  .case-page.is-vision .cs-strategy-card strong::before {
    display: inline;
    margin: 0 8px 0 0;
  }
  .case-page.is-vision .cs-strategy-brief {
    grid-template-columns: 1fr;
    margin-top: 34px;
    border-radius: 7px;
  }
  .case-page.is-vision .cs-strategy-brief-intro {
    padding: 22px 0 24px;
  }
  .case-page.is-vision .cs-strategy-brief-intro h3 { margin-top: 20px; }
  .case-page.is-vision .cs-strategy-path {
    border-top: 0;
    border-left: 0;
  }
  .case-page.is-vision .cs-strategy-pillar {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    padding: 18px 20px;
  }
  .case-page.is-vision .cs-strategy-pillar p {
    margin-top: 5px;
    font-size: 13.5px;
    line-height: 1.62;
  }
  /* 面向对象由纵向手势直接驱动横移，不 pin，也不生成纵向占位。 */
  .case-page.is-vision .cs-audience-stage {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }
  .case-page.is-vision .cs-audience-pin {
    width: calc(100% + 2 * var(--gutter));
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    overflow-x: auto;
    overflow-y: hidden;
    touch-action: pan-x pan-y;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--gutter);
    scrollbar-width: none;
    padding-bottom: 0;
    -webkit-overflow-scrolling: touch;
  }
  .case-page.is-vision .cs-audience-pin::-webkit-scrollbar { display: none; }
  .case-page.is-vision .cs-audience-pin.is-auto-x {
    overflow-x: hidden;
    touch-action: pan-y;
    scroll-snap-type: none;
  }
  .case-page.is-vision .cs-audience-pin .cs-facets {
    display: flex;
    width: max-content;
    margin-top: var(--cs-mobile-content-gap);
    align-items: stretch;
    border: 0;
    border-radius: 0;
    overflow: visible;
    gap: 20px;
    padding-right: var(--gutter);
  }
  .case-page.is-vision .cs-audience-pin .cs-facet {
    box-sizing: border-box;
    flex: 0 0 min(82vw, 320px);
    width: min(82vw, 320px);
    max-width: none;
    padding: 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-content: start;
    column-gap: 10px;
    row-gap: 14px;
    border: 0;
    border-radius: 0;
    background: transparent;
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
  .case-page.is-vision .cs-audience-pin .cs-facet + .cs-facet { border-left: 0; }
  .case-page.is-vision .cs-audience-pin .cs-facet-n {
    align-self: baseline;
    margin: 0;
    font-family: var(--f-body);
    font-size: 13px;
    line-height: 1.35;
    letter-spacing: .08em;
    color: rgb(var(--cs-accent-rgb) / .68);
  }
  .case-page.is-vision .cs-audience-pin .cs-facet h4 {
    align-self: baseline;
    margin: 0;
    font-size: 18px;
    line-height: 1.35;
  }
  .case-page.is-vision .cs-audience-pin .cs-facet p {
    grid-column: 1 / -1;
    align-self: start;
    margin: 0;
  }
  .case-page.is-vision .cs-audience-pin .hscroll-dots { display: none; }
  .case-page.is-vision .cs-mobile-pin-preview {
    display: block;
    margin-top: var(--cs-mobile-section-gap);
  }
  .case-page.is-vision .cs-mobile-pin-preview.is-stage-copy { padding-bottom: 0; }
  .case-page.is-vision .cs-mobile-pin-preview.is-follow-copy { margin-top: var(--cs-mobile-content-gap); }
  .case-page.is-vision .cs-mobile-pin-preview .cs-title { margin: 0; }
  .case-page.is-vision .cs-mobile-pin-preview .cs-lede { margin-bottom: 0; }
  .case-page.is-vision .cs-mobile-pin-preview .cs-lede + .cs-lede { margin-top: 12px; }
  .case-page.is-vision .cs-mobile-pin-preview .cs-docs { margin-bottom: 0; }
  .case-page.is-vision .cs-mobile-preview-source { display: none; }
  .case-page.is-vision .cs-mobile-research-source { display: none; }

  /* HERO 的四组履历信息在桌面承担快速扫读，手机会把黑色首屏拖得过长。 */
  .case-page.is-vision .cs-hero-meta { display: none; }

  /* 调研模块保留方法和现场照片，七个桌面式索引方块在手机省略。 */
  .case-page.is-vision .cs-flow.is-steps { display: none; }

  /* 手机删去的细节卡与补充句；桌面仍完整保留。 */
  .case-page.is-vision .is-mobile-omit { display: none !important; }
  .case-page.is-vision .cs-only-desktop { display: none; }
  .case-page.is-vision .cs-only-mobile { display: inline; }

  /* 视觉体系沿用同一套 16:9 图文规范，手机只收紧留白。 */
  .case-page.is-vision .is-system-lab {
    padding-top: var(--cs-mobile-section-gap);
    padding-bottom: 0;
  }
  .case-page.is-vision .is-system-lab .cs-deck-view {
    position: relative;
    padding-bottom: 0;
  }
  .case-page.is-vision .is-system-lab .cs-deck-track {
    display: grid;
    max-width: none;
    gap: 0;
    padding: var(--cs-mobile-content-gap) var(--gutter) 0;
  }
  .case-page.is-vision .is-system-lab .cs-panel {
    width: auto;
    max-width: none;
    max-height: none;
    height: auto;
    grid-template-columns: 1fr;
    align-content: start;
    gap: 18px;
    padding: 30px 0;
    transition: none;
    contain: none;
  }
  .case-page.is-vision .is-system-lab .cs-panel:first-child { padding-top: 0; }
  .case-page.is-vision .is-system-lab .cs-panel:last-child { padding-bottom: 0; }
  .case-page.is-vision .is-system-lab .cs-panel-fig {
    width: 100%;
    margin-inline: 0;
  }
  .case-page.is-vision .is-system-lab .cs-panel-txt { padding-inline: 0; }
  .case-page.is-vision .is-system-lab .cs-panel-txt h3 { margin-bottom: 10px; font-size: 19px; line-height: 1.38; }
  .case-page.is-vision .is-system-lab .cs-panel-txt p { font-size: 14px; line-height: 1.68; }
  .case-page.is-vision .is-system-lab .cs-specs-mini { margin-top: 6px; }
  .case-page.is-vision .is-system-lab .cs-specs-mini li { padding-block: 4px; }
  .case-page.is-vision .is-system-lab .cs-chain { font-size: 12px; line-height: 1.5; padding: 8px 10px; }
  .case-page.is-vision .is-system-lab .cs-seal.is-inline {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 10px;
    margin-top: 8px;
    padding: 8px 10px;
  }
  .case-page.is-vision .is-system-lab .cs-seal.is-inline .cs-seal-stage { padding: 8%; }
  .case-page.is-vision .is-system-lab .cs-prio { padding: 8px 10px; }
  .case-page.is-vision .is-system-lab .cs-prio p { display: none; }
  .case-page.is-vision .hscroll-dots { display: flex; }
  .case-page.is-vision .hscroll-dots.is-in-rail {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 2px;
    z-index: 3;
    margin: 0;
  }

  /* 05 回到竖向自然阅读，卡片高度由内容撑开。 */
  .case-page.is-vision .is-proofroom { overflow: visible; }
  .case-page.is-vision .is-proofroom .cs-line {
    display: block;
    max-width: none;
    margin: 32px 0 0;
    padding: 0 0 0 32px;
    overflow: visible;
  }
  .case-page.is-vision .is-proofroom .cs-line-item,
  .case-page.is-vision .is-proofroom .cs-line-item:last-child {
    width: auto;
    max-width: none;
    height: auto;
    max-height: none;
    margin-bottom: 26px;
    padding: 0 0 26px;
  }
  .case-page.is-vision .is-proofroom .cs-line-item:last-child { margin-bottom: 0; padding-bottom: 0; }
  .case-page.is-vision .is-proofroom .cs-line-body,
  .case-page.is-vision .is-proofroom .cs-line-item:last-child .cs-line-body {
    display: block;
    height: auto;
    min-height: 0;
    max-height: none;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    overflow: visible;
  }
  .case-page.is-vision .is-proofroom .cs-line-k { font-size: 18px; margin-bottom: 8px; }
  .case-page.is-vision .is-proofroom .cs-line-body p { font-size: 14px; line-height: 1.62; }
  .case-page.is-vision .is-proofroom .cs-review-paths { margin-top: 10px; gap: 4px; }
  .case-page.is-vision .is-proofroom .cs-review-paths li { font-size: 14px; line-height: 1.62; }
  .case-page.is-vision .is-proofroom .cs-plates { gap: 8px; margin-top: 10px; }
  .case-page.is-vision .is-proofroom .cs-plate img { max-height: 112px; object-fit: cover; }
  .case-page.is-vision .is-proofroom .cs-plate b { margin-top: 6px; font-size: 13px; }
  .case-page.is-vision .is-proofroom .cs-stats { margin-top: 12px; }
  .case-page.is-vision .is-proofroom { padding-bottom: 0; }
  /* 总结与能力共用无底色、细分割线的单列规范。 */
  .case-page.is-vision .is-outcome { overflow: visible; }
  .case-page.is-vision .is-outcome .cs-lessons {
    position: static;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin: var(--cs-mobile-content-gap) 0 0;
    padding: 0;
    overflow: visible;
  }
  .case-page.is-vision .is-outcome .cs-lesson,
  .case-page.is-vision .is-outcome .cs-lesson:first-child,
  .case-page.is-vision .is-outcome .cs-lesson:last-child {
    width: auto;
    max-width: none;
    min-height: 0;
    height: auto;
    max-height: none;
    align-content: start;
    padding: 24px 0;
    border-left: 0;
    border-bottom: 1px solid var(--cs-hair);
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-vision .is-outcome .cs-lesson:last-child { border-bottom: 0; }
  .case-page.is-vision .is-outcome .cs-lesson:first-child { padding-top: 0; }
  .case-page.is-vision .is-outcome .cs-lesson:last-child { padding-bottom: 0; }
  .case-page.is-vision .is-outcome .cs-lesson p { font-size: 14px; line-height: 1.7; }
  .case-page.is-vision .cs-capability-list .cs-facets {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: var(--cs-mobile-content-gap);
    width: auto;
  }
  .case-page.is-vision .cs-capability-list .cs-facet,
  .case-page.is-vision .cs-capability-list .cs-facet + .cs-facet {
    padding: 24px 0;
    border-left: 0;
    border-bottom: 1px solid var(--cs-hair);
  }
  .case-page.is-vision .cs-capability-list .cs-facet:last-child { border-bottom: 0; }
  .case-page.is-vision .cs-capability-list .cs-facet:first-child { padding-top: 0; }
  .case-page.is-vision .cs-capability-list .cs-facet:last-child { padding-bottom: 0; }
}

/* ============================================================
   作品详情手机首屏规范
   产品单页与企业内刊使用同一组标题和导语参数，避免各页面单独漂移。
   ============================================================ */
@media (max-width: 768px) {
  .case-page:is(.is-vision, .is-product-sheets) .cs-hero {
    padding: 120px var(--gutter) 0;
  }
  .case-page:is(.is-vision, .is-product-sheets) .cs-hero-title {
    margin: 0 0 16px;
    font-size: 29px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -.02em;
  }
  .case-page:is(.is-vision, .is-product-sheets) .cs-hero-title em {
    display: block;
  }
  .case-page:is(.is-vision, .is-product-sheets) .cs-hero-sub {
    margin: 0 0 22px;
    font-size: 15px;
    line-height: 1.72;
  }
}

/* ============================================================
   产品单页手机正文规范
   不使用卡片、描边和容器阴影；层级只由留白、字重与强调色建立。
   ============================================================ */
@media (max-width: 768px) {
  .case-page.is-product-sheets .cs-body {
    --ps-space-xs: 8px;
    --ps-space-sm: 16px;
    --ps-space-md: 28px;
    --ps-space-lg: 40px;
    --ps-section-gap: 64px;
    --ps-content-gap: 32px;
  }

  /* 五级文字体系：章节、小节、导语、正文、注释。 */
  .case-page.is-product-sheets .cs-body > .cs-section > .cs-title {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -.01em;
  }
  .case-page.is-product-sheets .cs-body .cs-sub,
  .case-page.is-product-sheets .cs-body .cs-inst-title,
  .case-page.is-product-sheets .cs-body .cs-flip-copy h4,
  .case-page.is-product-sheets .cs-body .cs-stage h4,
  .case-page.is-product-sheets .cs-body .cs-spec h4,
  .case-page.is-product-sheets .cs-body .cs-phase h4,
  .case-page.is-product-sheets .cs-body .cs-phase.is-dark h4,
  .case-page.is-product-sheets .cs-body .cs-ms-body h4,
  .case-page.is-product-sheets .cs-body .cs-lessons h3 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0;
  }
  .case-page.is-product-sheets .cs-body .cs-sub {
    margin-top: var(--ps-content-gap);
    margin-bottom: 0;
  }
  .case-page.is-product-sheets .cs-body .cs-lede {
    margin-top: 14px;
    font-size: 15.5px;
    font-weight: 400;
    line-height: 1.72;
  }
  .case-page.is-product-sheets .cs-body :is(
    .cs-card-text,
    .cs-hub-node p,
    .cs-block-v,
    .cs-compare-v,
    .cs-stage li,
    .cs-note,
    .cs-flip-copy p,
    .cs-pill,
    .cs-flow-step small,
    .cs-spec p,
    .cs-phase > p,
    .cs-phase.is-dark > p,
    .cs-phase li,
    .cs-phase.is-dark li,
    .cs-ms-body p,
    .cs-lessons p,
    .cs-cap
  ) {
    font-size: 14px;
    line-height: 1.68;
    letter-spacing: 0;
  }
  .case-page.is-product-sheets .cs-body :is(
    .cs-card-label,
    .cs-block-k,
    .cs-compare-k,
    .cs-badge,
    .cs-redacted,
    .cs-doc-cap,
    .cs-figure-cap,
    .cs-flip-side-k
  ) {
    font-size: 12.5px;
    line-height: 1.5;
    letter-spacing: .06em;
  }
  .case-page.is-product-sheets .cs-body .cs-question {
    margin-top: var(--ps-content-gap);
    padding: 0;
    border: 0;
    background: transparent;
    font-size: 16px !important;
    font-weight: 600;
    line-height: 1.62;
  }
  .case-page.is-product-sheets .cs-body :is(.cs-quote-dark, .cs-quote-soft) {
    margin-top: var(--ps-content-gap);
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--cs-ink-2);
    font-size: 15.5px;
    font-weight: 400;
    line-height: 1.72;
  }
  .case-page.is-product-sheets .cs-body :is(.cs-quote-dark, .cs-quote-soft) em {
    color: var(--cs-accent-deep);
    font-weight: 600;
  }

  /* 内容组只靠留白分段，不再画横线或包进卡片。 */
  .case-page.is-product-sheets .cs-body :is(
    .cs-card,
    .cs-hub-core,
    .cs-hub-node,
    .cs-compare-head,
    .cs-compare-row,
    .cs-block,
    .cs-block.is-filled,
    .cs-stage,
    .cs-doc,
    .cs-minutes,
    .cs-minutes-head,
    .cs-layout,
    .cs-pill,
    .cs-flow-step,
    .cs-palette-preview,
    .cs-swatch,
    .cs-spec,
    .cs-phase,
    .cs-phase.is-dark,
    .cs-figure,
    .cs-deliver,
    .cs-lesson
  ) {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .case-page.is-product-sheets .cs-card { padding: 0; }
  .case-page.is-product-sheets .cs-card + .cs-card { margin-top: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-card-label { display: block; margin-bottom: var(--ps-space-xs); }

  .case-page.is-product-sheets .cs-hub { gap: 0; }
  .case-page.is-product-sheets .cs-hub-core { padding: 0; margin-bottom: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-hub-node { padding: 0; }
  .case-page.is-product-sheets .cs-hub-node + .cs-hub-node { margin-top: 22px; }
  .case-page.is-product-sheets .cs-hub-node h4 { margin: 0 0 6px; font-size: 16px; line-height: 1.5; }

  .case-page.is-product-sheets .cs-compare { gap: var(--ps-space-lg); }
  .case-page.is-product-sheets .cs-compare-head {
    padding: 0;
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0;
  }
  .case-page.is-product-sheets .cs-body .cs-compare-col.is-mine .cs-compare-head {
    font-size: 16px;
    line-height: 1.5;
    letter-spacing: 0;
  }
  .case-page.is-product-sheets .cs-compare-row { padding: 0; }
  .case-page.is-product-sheets .cs-compare-row + .cs-compare-row { margin-top: 22px; }
  .case-page.is-product-sheets .cs-blocks { gap: 22px; }
  .case-page.is-product-sheets .cs-block,
  .case-page.is-product-sheets .cs-block.is-filled { padding: 0; }
  .case-page.is-product-sheets .cs-block-k { margin-bottom: 5px; }

  .case-page.is-product-sheets .cs-inst-head { margin-bottom: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-members { gap: 10px 18px; margin-bottom: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-member { font-size: 14px; line-height: 1.5; }
  .case-page.is-product-sheets .cs-member i { display: none; }
  .case-page.is-product-sheets .cs-stages { gap: var(--ps-space-md); margin-top: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-stage { padding: 0; }
  .case-page.is-product-sheets .cs-stage ul { margin-top: 10px; }
  .case-page.is-product-sheets .cs-note {
    margin-top: var(--ps-space-md);
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-note b { color: var(--cs-accent-deep); }

  .case-page.is-product-sheets .cs-docs { gap: 24px 10px; }
  .case-page.is-product-sheets .cs-doc { padding: 0; overflow: visible; }
  .case-page.is-product-sheets .cs-doc-fig,
  .case-page.is-product-sheets .cs-palette-fig {
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .case-page.is-product-sheets .cs-minutes { margin-top: var(--ps-content-gap); padding: 0; }
  .case-page.is-product-sheets .cs-minutes-head { padding: 0; font-size: 15.5px; line-height: 1.5; }
  .case-page.is-product-sheets .cs-minutes-head span { display: block; margin-top: 6px; }
  .case-page.is-product-sheets .cs-minutes-body { padding-top: 22px; }
  .case-page.is-product-sheets .cs-minutes-prod h5 { font-size: 16px; line-height: 1.5; }
  .case-page.is-product-sheets .cs-minutes-prod li { font-size: 14px; line-height: 1.68; }
  .case-page.is-product-sheets .cs-body :is(.cs-redacted, .cs-doc-cap, .cs-figure-cap) { letter-spacing: 0; }

  /* 图片和交互本身可以存在，但不再伪装成悬浮卡片。 */
  .case-page.is-product-sheets .cs-flip-face,
  .case-page.is-product-sheets .cs-wall .cs-sheet,
  .case-page.is-product-sheets .cs-grid13 .cs-sheet {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .case-page.is-product-sheets .cs-figure img { border-radius: 0; }
  .case-page.is-product-sheets .cs-layouts { gap: 20px; }
  .case-page.is-product-sheets .cs-layout { padding-top: 0; }
  .case-page.is-product-sheets .cs-layout-k { min-height: 0; margin-bottom: 12px; font-size: 14px; }
  .case-page.is-product-sheets .cs-pills { gap: 14px; }
  .case-page.is-product-sheets .cs-pill { padding: 0 0 0 16px; }
  .case-page.is-product-sheets .cs-pill::before { top: 8px; width: 6px; height: 6px; }

  .case-page.is-product-sheets .cs-flow.is-steps { gap: 24px; }
  .case-page.is-product-sheets .cs-flow.is-steps .cs-flow-step { padding: 0; }
  .case-page.is-product-sheets .cs-flow.is-steps b { font-size: 16px; line-height: 1.5; }
  .case-page.is-product-sheets .cs-flow.is-steps b i { font-size: 12.5px; }
  .case-page.is-product-sheets .cs-flow.is-steps small { margin: 5px 0 0 31px; }

  .case-page.is-product-sheets .cs-swatches { gap: 10px 7px; }
  .case-page.is-product-sheets .cs-swatch {
    padding: 4px 0;
    opacity: .34;
    transition: opacity .25s var(--ease), transform .25s var(--ease);
  }
  .case-page.is-product-sheets .cs-swatch:hover,
  .case-page.is-product-sheets .cs-swatch.is-active {
    background: transparent;
    opacity: 1;
    transform: translateY(-2px);
  }
  .case-page.is-product-sheets .cs-swatch i { border-radius: 0; }
  .case-page.is-product-sheets .cs-palette-meta small { font-size: 12.5px; line-height: 1.5; letter-spacing: 0; }
  .case-page.is-product-sheets .cs-specs { gap: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-spec { padding: 0; }
  .case-page.is-product-sheets .cs-phases { gap: var(--ps-content-gap); }
  .case-page.is-product-sheets .cs-phase,
  .case-page.is-product-sheets .cs-phase.is-dark { padding: 0; }

  .case-page.is-product-sheets .cs-gain {
    display: inline;
    margin-left: 7px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--cs-accent-deep);
    font-size: 12.5px;
    font-weight: 600;
  }

  /* 里程碑改成普通时间清单，不再用描边圆点和轨道。 */
  .case-page.is-product-sheets .cs-timeline::before,
  .case-page.is-product-sheets .cs-timeline-line,
  .case-page.is-product-sheets .cs-ms-dot { display: none; }
  .case-page.is-product-sheets .cs-ms { display: block; padding: 0; }
  .case-page.is-product-sheets .cs-ms + .cs-ms { margin-top: var(--ps-space-md); }
  .case-page.is-product-sheets .cs-ms-body h4 { margin-bottom: 6px; }

  .case-page.is-product-sheets .cs-lessons { display: grid; gap: var(--ps-content-gap); }
  .case-page.is-product-sheets .cs-lesson,
  .case-page.is-product-sheets .cs-lesson:first-child,
  .case-page.is-product-sheets .cs-lesson:last-child { padding: 0; }
  .case-page.is-product-sheets .cs-lesson h3 { margin-bottom: 8px; }
  .case-page.is-product-sheets .cs-deliver-l { font-size: 12.5px; line-height: 1.5; }

  /* 触屏反馈不依赖卡片底色，只用轻微位移和透明度。 */
  .case-page.is-product-sheets :is(.cs-flip, .cs-figure, .cs-sheet, .cs-swatch) {
    -webkit-tap-highlight-color: transparent;
  }
  .case-page.is-product-sheets .cs-flip,
  .case-page.is-product-sheets .cs-figure img,
  .case-page.is-product-sheets .cs-sheet {
    transition: transform .28s var(--ease), opacity .28s var(--ease);
  }
  .case-page.is-product-sheets .cs-flip:active { transform: scale(.985); }
  .case-page.is-product-sheets .cs-figure:active img,
  .case-page.is-product-sheets .cs-sheet:active { transform: scale(.975); opacity: .72; }
  .case-page.is-product-sheets .cs-swatch:active { transform: translateY(-2px) scale(.9); }
}