/* ===== Deck 模式专用样式 — 把长图切成一屏一屏 ===== */

/* deck 模式下需要继承 .poster 内的样式(原 css 用 .poster 选择器) */
.deck { /* 兼容原 .poster 选择器,deck 也享受 token */ }

/* 全局重置:让 deck 容器铺满视口,接管滚动 */
html, body {
  height: 100vh;
  overflow: hidden;
  background: #0A1A3F;
}

/* deck 容器:垂直滚动捕捉(覆盖原 .poster 的 1080 固定宽) */
.deck.poster,
.deck {
  width: 100vw !important;
  height: 100vh;
  margin: 0 !important;
  overflow-y: scroll;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  background: linear-gradient(180deg, #FAFBFD 0%, #EEF2FA 100%);
  position: relative;
  box-shadow: none;
  scrollbar-width: none;
}
.deck::-webkit-scrollbar { display: none; }

/* slide 单页:撑满视口 + 吸附 */
.deck > section,
.deck > .slide {
  scroll-snap-align: start;
  scroll-snap-stop: always;
  min-height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 4vh 5vw;
  position: relative;
  box-sizing: border-box;
}

/* slide-card:固定 PPT 16:9 画布,所有卡片视觉宽高一致 */
/* 默认 center:让 sec-head + 内容作为一组在卡片内垂直居中,
   gap 控制段间距,不靠 space-between 把内容硬撑开 */
.slide-card {
  width: min(1240px, calc((100vh - 8vh) * 16 / 9));
  aspect-ratio: 16 / 9;
  background: #fff;
  border: 1px solid rgba(0, 47, 167, 0.08);
  border-radius: 20px;
  padding: 44px 56px;
  box-shadow:
    0 1px 2px rgba(0, 47, 167, 0.04),
    0 12px 32px rgba(0, 47, 167, 0.08),
    0 24px 64px rgba(0, 47, 167, 0.06);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  overflow: hidden;
  position: relative;
}

/* P6 权责体系:维持 sec-head 顶、roles-flow 底的当前节奏 */
.deck > [data-content-class="roles-flow"] .slide-card {
  justify-content: space-between;
}
.slide-card > * { width: 100%; max-width: 100%; min-width: 0; }
.slide-card > .sec-head { padding: 0 0 4px; flex-shrink: 0; }

/* 卡片右下角装饰几何:浅色 IKB 圆+线 */
.slide-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  background:
    radial-gradient(circle at 30% 30%, rgba(0, 47, 167, 0.05), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(255, 169, 64, 0.04), transparent 55%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.slide-card::before {
  content: "";
  position: absolute;
  right: 32px;
  bottom: 32px;
  width: 88px;
  height: 88px;
  border: 1.5px solid rgba(0, 47, 167, 0.08);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.slide-card > * { position: relative; z-index: 1; }

/* slide 内部限宽,继承原长图的 1080 设计(排除 slide-card,卡片自己控宽) */
.deck > section > *:not(.slide-card),
.deck > .slide > *:not(.slide-card) {
  max-width: 1080px;
  width: 100%;
}

/* hero 是 grid 布局,需要内层包一层 */
.deck .hero { padding: 0 4vw; }
.deck .hero-body { width: 100%; max-width: 1080px; }

/* sec-head 居中容器:宽度自适应,padding 由父级吸附区控制 */
.deck .sec-head {
  padding: 0 4vw 26px;
  text-align: center;
}

/* 各 section 的 padding 重置(在 deck 模式下由 slide-padding 接管) */
.deck .challenge,
.deck .goals,
.deck .arch,
.deck .hardware2,
.deck .roles-flow,
.deck .scenes-overview,
.deck .scene2,
.deck .extra-table,
.deck .cta {
  padding-left: 0;
  padding-right: 0;
}

/* sec-head + 内容合并为一屏:用 .slide-group 包起来 */
.slide-group {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 1080px;
}

/* 入场动画:当 slide 进入视口,内容 fade-up */
.deck > section,
.deck > .slide {
  opacity: 0.4;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.deck > section.is-active,
.deck > .slide.is-active {
  opacity: 1;
  transform: translateY(0);
}

/* 右侧圆点进度条 */
.deck-nav {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 8px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0, 47, 167, 0.12);
}
.deck-nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(0, 47, 167, 0.25);
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  padding: 0;
  display: block;
}
.deck-nav-dot:hover {
  background: rgba(0, 47, 167, 0.5);
  transform: scale(1.3);
}
.deck-nav-dot.is-active {
  background: var(--ikb);
  width: 8px;
  height: 24px;
  border-radius: 4px;
}

/* 顶部进度条 */
.deck-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ikb), var(--accent));
  z-index: 101;
  width: 0;
  transition: width 0.2s ease;
}

/* 左下角页码 */
.deck-counter {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 100;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ikb);
  letter-spacing: 1.5px;
  box-shadow: 0 4px 12px rgba(0, 47, 167, 0.08);
}
.deck-counter b {
  font-size: 14px;
  font-weight: 800;
}

/* 右下角操作提示 */
.deck-hint {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 100;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 47, 167, 0.08);
  display: flex;
  gap: 12px;
  align-items: center;
}
.deck-hint kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  background: #fff;
  border: 1px solid var(--ikb-line);
  border-radius: 5px;
  font-family: -apple-system, sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--ikb);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Hero slide 大字号适配视口 */
.deck .hero .h1 {
  font-size: clamp(40px, 5.2vw, 64px);
}
.deck .hero .h1-sub {
  font-size: clamp(15px, 1.4vw, 18px);
}

/* sec-title 在 deck 模式下可以更大,占据视觉中心 */
.deck .sec-title {
  font-size: clamp(28px, 3.2vw, 42px);
}

/* ===== 单屏内容尺寸适配(后台 splitScenes/mergeSecHeads 拆分后的真实容器) ===== */

/* 架构屏:横版 grid 排版 — 左侧标题区,右侧图,既解决高度问题又有 PPT 横版美感 */
.deck > [data-content-class="arch"] .slide-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) 2fr;
  gap: 36px;
  align-items: center;
  padding: 32px 40px;
  max-width: 1240px;
}
.deck > [data-content-class="arch"] .slide-card > .sec-head {
  text-align: left;
  padding: 0;
  align-self: center;
}
.deck > [data-content-class="arch"] .slide-card > .sec-head .sec-title {
  text-align: left;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.25;
}
.deck > [data-content-class="arch"] .slide-card > .sec-head .sec-sub {
  text-align: left;
  margin-top: 14px;
  font-size: clamp(13px, 1.05vw, 15px);
  color: var(--text-2);
  line-height: 1.7;
}
.deck > [data-content-class="arch"] .slide-card > .arch {
  margin: 0;
  padding: 0;
  width: 100%;
}
.deck > [data-content-class="arch"] .arch-img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}
.deck > [data-content-class="arch"] .arch-img {
  max-height: 78vh;
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: 12px;
}

/* 场景屏:scene2 在卡片中,卡片自身宽度合适,内层不再顶满 */
.deck > .slide-scene .slide-card {
  max-width: 1180px;
  padding: 32px 44px;
}
.deck > .slide-scene .scene2 {
  width: 100%;
  margin: 0 auto;
}

/* 场景导览屏(只剩 sec-head,没卡片):居中放大,作章节分隔 */
.deck > .slide-section-divider {
  justify-content: center;
}
.deck > .slide-section-divider .sec-head { padding: 0 4vw; }
.deck > .slide-section-divider .sec-title {
  font-size: clamp(36px, 4.2vw, 56px);
}
.deck > .slide-section-divider .sec-sub {
  font-size: clamp(15px, 1.4vw, 18px);
  margin-top: 12px;
}

/* 兜底:任何 slide 内容超出视口允许内 scroll(防 1280 窄屏溢出) */
.deck > section,
.deck > .slide { overflow-y: auto; }
.deck > section::-webkit-scrollbar,
.deck > .slide::-webkit-scrollbar { display: none; }
.deck > section,
.deck > .slide { scrollbar-width: none; }

/* Hero / CTA 独立屏:无卡片,内容自然居中 */
.deck > .hero {
  padding: 0;
}
.deck > .hero .hero-body {
  width: 100%;
  max-width: 1180px;
  padding: 0 5vw;
}
.deck > .cta {
  padding: 4vh 5vw;
  background: linear-gradient(180deg, #FAFBFD 0%, #EEF2FA 100%);
}
.deck > .cta .slide-card {
  padding: 0;
  border: none;
  box-shadow:
    0 1px 2px rgba(0, 47, 167, 0.04),
    0 12px 32px rgba(0, 47, 167, 0.18),
    0 24px 64px rgba(0, 47, 167, 0.12);
  background:
    linear-gradient(180deg, rgba(10, 26, 63, 0.92), rgba(0, 47, 167, 0.88)),
    url('assets/hero-concept.png') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}
.deck > .cta .slide-card::before,
.deck > .cta .slide-card::after { display: none; }
.deck > .cta .cta-inner {
  width: 100%;
  max-width: 880px;
  padding: 0 56px;
  text-align: center;
}
.deck > .cta .cta-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 4px;
  color: rgba(255, 169, 64, 0.85);
  margin-bottom: 18px;
}
.deck > .cta .cta-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.deck > .cta .cta-sub {
  font-size: clamp(14px, 1.3vw, 17px);
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 28px;
  line-height: 1.6;
}
.deck > .cta .cta-btn {
  display: inline-block;
  padding: 14px 44px;
  font-size: 16px;
  font-weight: 700;
  background: var(--accent);
  color: #2A1500;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(255, 169, 64, 0.35);
}
.deck > .cta .cta-foot {
  margin-top: 28px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 1px;
}

/* P3 目标卡:list 双句样式 */
.deck > [data-content-class="goals"] .goal-card .goal-list {
  margin: 0; padding: 0; list-style: none; flex: 1;
  display: flex; flex-direction: column; gap: 8px;
}
.deck > [data-content-class="goals"] .goal-card .goal-list li {
  font-size: 13px; line-height: 1.7; color: var(--text-2);
  padding-left: 14px; position: relative;
}
.deck > [data-content-class="goals"] .goal-card .goal-list li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--ikb);
}

/* ===== 全局字号阶梯重定(deck 模式比长图模式偏大,提升可读性) ===== */

/* P2 挑战屏 */
.deck > [data-content-class="challenge"] .challenge { padding: 0 !important; }
.deck > [data-content-class="challenge"] .challenge-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px;
}
.deck > [data-content-class="challenge"] .ch-col {
  padding: 18px;
}
.deck > [data-content-class="challenge"] .ch-col-head h3 { font-size: 17px !important; }
.deck > [data-content-class="challenge"] .ch-col-tag { font-size: 11.5px !important; }
.deck > [data-content-class="challenge"] .ch-item h5 { font-size: 13.5px !important; }
.deck > [data-content-class="challenge"] .ch-item p { font-size: 12.5px !important; line-height: 1.6 !important; }
.deck > [data-content-class="challenge"] .pain-conclusion {
  margin-top: 14px; padding: 16px 22px;
}
.deck > [data-content-class="challenge"] .pc-title { font-size: 17px !important; }
.deck > [data-content-class="challenge"] .pc-desc { font-size: 12.5px !important; line-height: 1.6 !important; }

/* P3 目标 */
.deck > [data-content-class="goals"] .goals { padding: 0 !important; }
.deck > [data-content-class="goals"] .goal-grid { gap: 14px; }
.deck > [data-content-class="goals"] .goal-card { padding: 18px 20px; }
.deck > [data-content-class="goals"] .goal-card h4 { font-size: 16px !important; line-height: 1.4; margin-bottom: 8px !important; }

/* P5 硬件 */
.deck > [data-content-class="hardware2"] .hardware2 { padding: 0 !important; }
.deck > [data-content-class="hardware2"] .hw2-product { padding: 18px 20px; gap: 18px; }
.deck > [data-content-class="hardware2"] .hw2-spec th,
.deck > [data-content-class="hardware2"] .hw2-spec td { font-size: 13.5px !important; padding: 9px 12px !important; }
.deck > [data-content-class="hardware2"] .hw2-pname { font-size: 18px !important; }
.deck > [data-content-class="hardware2"] .hw2-ptag { font-size: 13px !important; }

/* P6 权责 */
.deck > [data-content-class="roles-flow"] .roles-flow { padding: 0 !important; }
.deck > [data-content-class="roles-flow"] .rf-center { margin-bottom: 6px; }
.deck > [data-content-class="roles-flow"] .rf-lines { height: 28px; }
.deck > [data-content-class="roles-flow"] .rf-axis h3 { font-size: 16px !important; margin: 0 0 4px !important; }
.deck > [data-content-class="roles-flow"] .rf-axis p { font-size: 11.5px !important; line-height: 1.5 !important; }
.deck > [data-content-class="roles-flow"] .rf-axis-tag { font-size: 10.5px !important; }
.deck > [data-content-class="roles-flow"] .rf-grid { gap: 10px; }
.deck > [data-content-class="roles-flow"] .rf-col {
  padding: 12px 13px;
  gap: 8px;
}
.deck > [data-content-class="roles-flow"] .rf-role { gap: 8px; margin-bottom: 4px !important; padding-bottom: 6px !important; }
.deck > [data-content-class="roles-flow"] .rf-role h4 { font-size: 14px !important; }
.deck > [data-content-class="roles-flow"] .rf-role-icon { width: 32px !important; height: 32px !important; }
.deck > [data-content-class="roles-flow"] .rf-resp { gap: 4px; }
.deck > [data-content-class="roles-flow"] .rf-resp p { font-size: 11.5px !important; line-height: 1.55 !important; margin: 0 !important; }
.deck > [data-content-class="roles-flow"] .rf-resp-label,
.deck > [data-content-class="roles-flow"] .rf-tools-label { font-size: 10.5px !important; margin-bottom: 2px !important; }
.deck > [data-content-class="roles-flow"] .rf-tools { gap: 4px; }
.deck > [data-content-class="roles-flow"] .rf-tools-list { gap: 5px !important; }
.deck > [data-content-class="roles-flow"] .rf-tools-list span { font-size: 11px !important; padding: 3px 8px !important; }

/* P8-12 场景屏:四段式叙事(head / narrative / flow / caps),
   保留 space-between 让段落自然分布,但 flow 不再无限吸收剩余空间 */
.deck > .slide-scene .scene2.brochure {
  background: transparent !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 0 !important;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}
.deck > .slide-scene .scene2.brochure::before { display: none !important; }
.deck > .slide-scene .scene2.brochure .head {
  margin-bottom: 0 !important;
  padding: 18px 24px !important;
  border-radius: 14px;
  flex-shrink: 0;
}
.deck > .slide-scene .scene2.brochure .narrative {
  margin-bottom: 0 !important;
  gap: 10px;
  padding: 0 6px;
  flex-shrink: 0;
}
.deck > .slide-scene .scene2.brochure .flow {
  margin-bottom: 0 !important;
  padding: 4px 0;
  flex: 0 1 auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.deck > .slide-scene .scene2.brochure .caps {
  padding: 18px 24px !important;
  border-radius: 14px;
  flex-shrink: 0;
}
.deck > .slide-scene .scene2 .title { font-size: 22px !important; }
.deck > .slide-scene .scene2 .scene-num { font-size: 28px !important; }
.deck > .slide-scene .scene2 .para-label { font-size: 12px !important; }
.deck > .slide-scene .scene2 .para-text { font-size: 14px !important; line-height: 1.7 !important; }
.deck > .slide-scene .scene2 .caps-label { font-size: 12px !important; margin-bottom: 8px !important; }
.deck > .slide-scene .scene2 .caps-list li { font-size: 13px !important; line-height: 1.65 !important; padding-left: 26px !important; }
.deck > .slide-scene .scene2 .caps-list li::before {
  content: counter(cap-item, decimal-leading-zero);
  counter-increment: cap-item;
  position: absolute; left: 0; top: 1px;
  font-size: 11px; font-weight: 800; color: var(--ikb);
}
/* mermaid 图限高,不强吸收,垂直居中 */
.deck > .slide-scene .scene2.brochure .mermaid svg { max-height: 220px; height: auto; }

/* P13 extra 表格(stale 兼容,实际使用 extra-grid 卡片) */
.deck > [data-content-class="extra-scenes"] .extra-table th,
.deck > [data-content-class="extra-scenes"] .extra-table td { font-size: 14px !important; padding: 12px 14px !important; line-height: 1.65 !important; }

/* P13 extra 场景:6 卡 3×2 网格,卡片化呈现,替代原表格 */
.deck > [data-content-class="extra-scenes"] .extra-scenes { padding: 0 !important; }
.deck > [data-content-class="extra-scenes"] .extra-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  width: 100%;
}
.deck > [data-content-class="extra-scenes"] .extra-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  padding: 16px 18px;
  background: var(--ikb-ghost);
  border: 1px solid var(--ikb-line);
  border-radius: 14px;
  align-items: start;
}
.deck > [data-content-class="extra-scenes"] .extra-num {
  font-size: 22px !important;
  font-weight: 800;
  color: var(--ikb);
  line-height: 1;
  letter-spacing: -0.5px;
  font-family: "SF Pro Display", -apple-system, sans-serif;
}
.deck > [data-content-class="extra-scenes"] .extra-body h4 {
  font-size: 14.5px !important;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 6px;
  line-height: 1.35;
}
.deck > [data-content-class="extra-scenes"] .extra-body p {
  font-size: 12px !important;
  line-height: 1.6 !important;
  color: var(--text-2);
  margin: 0;
}

/* P7 章节扉页:大标题 + 引语,居中,无卡片 */
.deck > .slide-section-divider {
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 47, 167, 0.04), rgba(255, 169, 64, 0.03));
}
.deck > .slide-section-divider .sec-head {
  text-align: center;
  padding: 60px 4vw;
  max-width: 1080px;
}
.deck > .slide-section-divider .sec-title {
  font-size: clamp(40px, 4.8vw, 64px);
  line-height: 1.2;
}
.deck > .slide-section-divider .sec-sub {
  font-size: clamp(16px, 1.5vw, 20px);
  margin-top: 18px;
  color: var(--text-2);
}

/* 关闭原 poster 的边距/阴影(deck 模式不要) */
.deck > .hero::before,
.deck > .hero::after { display: none; }

/* ===========================================================
   移动端响应式(max-width: 768px)
   策略:不改 PC 端架构,把卡片画布从 16:9 固定改成 100vw × 自适应高,
        三列 grid 全部改单列,字号缩小,隐藏右侧圆点导航/键盘提示
   =========================================================== */
@media (max-width: 768px) {
  /* 卡片画布:抛弃 16:9 强制比例,改为屏宽 - padding,高度由内容决定 */
  .slide-card {
    width: calc(100vw - 24px) !important;
    aspect-ratio: auto !important;
    min-height: calc(100vh - 32px);
    padding: 24px 18px !important;
    border-radius: 14px;
    gap: 14px;
    justify-content: flex-start !important; /* 内容从顶向下排,不强行居中 */
  }

  /* slide 外层:压缩 padding */
  .deck > section,
  .deck > .slide { padding: 12px 12px !important; }

  /* 装饰几何:手机上缩小,避免抢内容 */
  .slide-card::after {
    width: 140px; height: 140px;
    right: -40px; bottom: -40px;
  }
  .slide-card::before {
    width: 60px; height: 60px;
    right: 20px; bottom: 20px;
  }

  /* 隐藏 PC 端导航/键盘提示(手机用滚动即可) */
  .deck-nav,
  .deck-hint { display: none !important; }

  /* 页码缩小到右下角 */
  .deck-counter {
    left: auto;
    right: 12px;
    bottom: 12px;
    padding: 6px 10px;
    font-size: 11px;
  }
  .deck-counter b { font-size: 12px; }

  /* sec-title / sec-sub 字号缩小 */
  .deck .sec-title {
    font-size: clamp(20px, 5.6vw, 26px) !important;
    line-height: 1.3;
  }
  .deck .sec-sub {
    font-size: clamp(12px, 3.4vw, 14px) !important;
    line-height: 1.6;
  }

  /* Hero 屏:左文右图 → 上下堆叠 */
  .deck .hero { padding: 12px !important; }
  .deck .hero-body {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
    padding: 0 !important;
  }
  .deck .hero .h1 { font-size: clamp(28px, 8vw, 40px) !important; }
  .deck .hero .h1-sub { font-size: clamp(13px, 3.6vw, 15px) !important; }
  .deck .hero .chips { gap: 6px; }
  .deck .hero .chip {
    font-size: 11px !important;
    padding: 4px 10px !important;
  }
  .deck .hero .audience {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
  .deck .hero .audience span { font-size: 11px !important; }
  .deck .hero .brand-chip { font-size: 10px !important; }
  .deck .hero-visual { display: none; } /* 概念图在 hero 上是装饰,手机省略 */

  /* P2 现状挑战:三列 → 单列 */
  .deck > [data-content-class="challenge"] .challenge-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .deck > [data-content-class="challenge"] .ch-col {
    padding: 14px !important;
  }
  .deck > [data-content-class="challenge"] .ch-col-head h3 { font-size: 15px !important; }
  .deck > [data-content-class="challenge"] .ch-item p { font-size: 12px !important; }
  .deck > [data-content-class="challenge"] .pain-conclusion {
    flex-direction: column;
    text-align: center;
    padding: 14px 16px;
    gap: 8px;
  }
  .deck > [data-content-class="challenge"] .pc-icon { display: none; }
  .deck > [data-content-class="challenge"] .pc-title { font-size: 15px !important; }

  /* P3 总体目标:2x2 → 单列 */
  .deck > [data-content-class="goals"] .goal-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .deck > [data-content-class="goals"] .goal-card { padding: 14px 16px !important; }
  .deck > [data-content-class="goals"] .goal-card h4 { font-size: 14px !important; }
  .deck > [data-content-class="goals"] .goal-list li { font-size: 12px !important; line-height: 1.6; }

  /* P4 架构:左文右图 grid → 单列 */
  .deck > [data-content-class="arch"] .slide-card {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    align-items: start !important;
  }
  .deck > [data-content-class="arch"] .arch-img { max-height: 50vh; }

  /* P5 硬件:产品图 + 三列规格 → 全单列 */
  .deck > [data-content-class="hardware2"] .hardware2,
  .deck > [data-content-class="hardware2"] section.hardware2 {
    grid-template-columns: 1fr !important; /* 290px 1fr → 单列 */
    padding: 14px !important;
    margin: 0 !important; /* 干掉 8px var(--pad-x) 0 在手机上 = 48px 边距 */
    gap: 14px !important;
    width: 100% !important;
  }
  .deck > [data-content-class="hardware2"] .hw2-product {
    flex-direction: column;
    padding: 0 !important;
    gap: 12px !important;
  }
  .deck > [data-content-class="hardware2"] .hw2-img-pair {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .deck > [data-content-class="hardware2"] .hw2-img-cell img {
    max-height: 100px;
    width: auto;
    margin: 0 auto;
  }
  .deck > [data-content-class="hardware2"] .hw2-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .deck > [data-content-class="hardware2"] .hw2-group { padding: 12px !important; }
  .deck > [data-content-class="hardware2"] .hw2-group-title { font-size: 13px !important; }
  .deck > [data-content-class="hardware2"] .hw2-row {
    grid-template-columns: 80px 1fr !important;
    gap: 8px;
  }
  .deck > [data-content-class="hardware2"] .hw2-spec th,
  .deck > [data-content-class="hardware2"] .hw2-spec td,
  .deck > [data-content-class="hardware2"] .hw2-k,
  .deck > [data-content-class="hardware2"] .hw2-v { font-size: 11.5px !important; }

  /* P6 权责体系:中心枢纽 + 4 列 → 单列堆叠 */
  .deck > [data-content-class="roles-flow"] .rf-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .deck > [data-content-class="roles-flow"] .rf-lines { display: none; } /* SVG 4 条线在单列下无意义 */
  .deck > [data-content-class="roles-flow"] .rf-col { padding: 12px !important; }
  .deck > [data-content-class="roles-flow"] .rf-axis h3 { font-size: 14px !important; }
  .deck > [data-content-class="roles-flow"] .rf-resp p,
  .deck > [data-content-class="roles-flow"] .rf-tools-list span { font-size: 11px !important; }

  /* 章节扉页(slide-section-divider):大字缩 */
  .deck > .slide-section-divider .sec-title {
    font-size: clamp(28px, 8vw, 38px) !important;
  }
  .deck > .slide-section-divider .sec-sub {
    font-size: clamp(13px, 3.6vw, 15px) !important;
  }

  /* P8-12 场景:scene2 brochure 单列适配 */
  .deck > .slide-scene .slide-card {
    padding: 18px 14px !important;
  }
  .deck > .slide-scene .scene2.brochure {
    gap: 10px;
    justify-content: flex-start !important;
  }
  .deck > .slide-scene .scene2.brochure .head {
    padding: 12px 14px !important;
    gap: 8px;
  }
  .deck > .slide-scene .scene2 .title { font-size: 17px !important; }
  .deck > .slide-scene .scene2 .scene-num { font-size: 22px !important; }
  .deck > .slide-scene .scene2.brochure .narrative {
    gap: 8px;
    padding: 0 2px;
  }
  .deck > .slide-scene .scene2 .para-label { font-size: 11px !important; }
  .deck > .slide-scene .scene2 .para-text { font-size: 12.5px !important; line-height: 1.6 !important; }
  .deck > .slide-scene .scene2.brochure .flow {
    padding: 4px 0;
    overflow-x: auto; /* Mermaid 太宽时允许横向滚动 */
  }
  .deck > .slide-scene .scene2.brochure .mermaid svg {
    max-height: 180px;
    min-width: 320px;
  }
  .deck > .slide-scene .scene2.brochure .caps {
    padding: 12px 14px !important;
  }
  .deck > .slide-scene .scene2 .caps-label { font-size: 11px !important; margin-bottom: 6px !important; }
  .deck > .slide-scene .scene2 .caps-list li {
    font-size: 12px !important;
    line-height: 1.55 !important;
    padding-left: 22px !important;
  }

  /* P13 其他场景:3x2 → 单列 */
  .deck > [data-content-class="extra-scenes"] .extra-grid {
    grid-template-columns: 1fr !important;
    gap: 10px;
  }
  .deck > [data-content-class="extra-scenes"] .extra-card {
    grid-template-columns: 36px 1fr !important;
    padding: 12px 14px !important;
  }
  .deck > [data-content-class="extra-scenes"] .extra-num { font-size: 18px !important; }
  .deck > [data-content-class="extra-scenes"] .extra-body h4 { font-size: 13px !important; }
  .deck > [data-content-class="extra-scenes"] .extra-body p { font-size: 11.5px !important; line-height: 1.55 !important; }

  /* CTA:暗底单屏 */
  .deck > .cta { padding: 12px !important; }
  .deck > .cta .slide-card {
    padding: 0 !important;
    min-height: calc(100vh - 32px);
  }
  .deck > .cta .cta-inner {
    padding: 0 24px !important;
  }
  .deck > .cta .cta-title { font-size: clamp(24px, 7vw, 32px) !important; }
  .deck > .cta .cta-sub { font-size: clamp(13px, 3.6vw, 15px) !important; }
  .deck > .cta .cta-btn {
    padding: 12px 28px !important;
    font-size: 14px !important;
  }
  .deck > .cta .cta-foot { font-size: 10.5px !important; margin-top: 18px !important; }
}

/* 打印模式:回归长图(可选,以后导 PNG 用) */
@media print {
  html, body { height: auto; overflow: visible; }
  .deck { height: auto; overflow: visible; scroll-snap-type: none; }
  .deck > section { min-height: auto; opacity: 1; transform: none; }
  .deck-nav, .deck-progress, .deck-counter, .deck-hint { display: none; }
}