@font-face {
  font-family: "Rethink Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./fonts/rethink-sans/RethinkSans-400.ttf") format("truetype");
}

@font-face {
  font-family: "Rethink Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("./fonts/rethink-sans/RethinkSans-500.ttf") format("truetype");
}

@font-face {
  font-family: "Rethink Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("./fonts/rethink-sans/RethinkSans-600.ttf") format("truetype");
}

@font-face {
  font-family: "Rethink Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("./fonts/rethink-sans/RethinkSans-700.ttf") format("truetype");
}

:root {
  --white: #ffffff;
  --browser-bg: #f3efff;
  --bg: #ffffff;
  --sidebar-bg: #fafafa;
  --text-dark: #071d49;
  --text-body: #242424;
  --purple-primary: #872d97;
  --purple-secondary: #b108d0;
  --purple-text: #9f17b8;
  --purple-dark: #621a6f;
  --purple-light-bg: #f6e8f9;
  --blue-teal: #2e7596;
  --blue-bright: #00adef;
  --cyan-accent: #00b8e6;
  --border-light: #e5e7eb;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  /* 桌面画布基准：主内容 1024 + 侧栏宽度，基准高度 640 */
  --locked-page-width: 1024px;
  --locked-page-height: 640px;
  --locked-page-scale: 1;
  --layout-sidebar-base-width: 180px;
  --layout-sidebar-width: 180px;
  --layout-frame-width: calc(var(--layout-sidebar-width) + (var(--locked-page-width) * var(--locked-page-scale)));
  --side-nav-fit-scale: 1;
  --side-nav-space-scale: clamp(0.62, calc((var(--side-nav-fit-scale) * 1.35) - 0.35), 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px; /* UK Government standard base font size */
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: "Rethink Sans", Arial, "Helvetica Neue", Helvetica, sans-serif;
  font-size: 16px; /* UK Government standard base font size */
  color: var(--text-body);
  background: var(--browser-bg);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
}

body {
  position: relative;
  min-height: 100dvh;
  overflow-x: hidden;
  overflow-y: auto;
  /* 超出内容区为白色，由 .layout-wrap 限制最大宽度并居中 */
  background: var(--browser-bg);
}

/* 侧栏 + 主内容固定为一整体，整体居中；主区 1024px + 左侧栏 180px = 1204px */
.layout-wrap {
  width: min(100%, var(--layout-frame-width));
  max-width: none;
  margin: 0 auto;
  min-height: 100dvh;
  background: var(--white);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}

a {
  color: inherit;
  text-decoration: none;
}

.bg-texture {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: transparent;
  z-index: 0;
  display: none;
}

/* 辅助线网格：可开关，默认隐藏，不阻挡点击 */
.guide-grid {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  /* 细线：8px 网格 */
  background-image:
    linear-gradient(to right, rgba(0, 173, 239, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 173, 239, 0.12) 1px, transparent 1px);
  background-size: 8px 8px;
  background-position: 0 0;
}

body.show-guide-grid .guide-grid {
  display: block;
}

/* 辅助线开关按钮 */
.guide-grid-toggle {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 9999;
  padding: 0.4rem 0.75rem;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.guide-grid-toggle:hover {
  background: #fff;
  border-color: var(--blue-bright);
  color: var(--blue-bright);
}

.guide-grid-toggle.is-active {
  background: rgba(0, 173, 239, 0.12);
  border-color: var(--blue-bright);
  color: var(--blue-bright);
}

.guide-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  /* 粗线：24px 网格，便于看字号/行距 */
  background-image:
    linear-gradient(to right, rgba(135, 45, 151, 0.2) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(135, 45, 151, 0.2) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
}

.guide-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  /* 主辅助线：每 32px，对应常见 margin/block 间距 */
  background-image:
    linear-gradient(to right, rgba(0, 0, 0, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: 0 0;
}

.orb {
  display: none;
}

.orb-cyan {
  display: none;
}

.orb-amber {
  display: none;
}

.layout {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100dvh;
}

.side-nav {
  position: sticky;
  top: 0;
  flex-shrink: 0;
  width: var(--layout-sidebar-width);
  height: 100dvh;
  padding: calc(1.35rem * var(--side-nav-space-scale))
    calc(1.5rem * var(--side-nav-fit-scale));
  display: flex;
  flex-direction: column;
  gap: calc(0.75rem * var(--side-nav-space-scale));
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border-light);
  z-index: 100;
  overflow-y: auto;
}

.brand-mark {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.taskforce-logo {
  width: 100%;
  max-width: 160px;
  height: auto;
  display: block;
  margin-bottom: 0.25rem;
}

.brand-symbol {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--text-dark);
  line-height: 1.2;
}

.brand-year {
  font-size: 2.5rem;
  color: var(--cyan-accent);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-top: 0.25rem;
}

/* Shared font scaling for nav links and download - both scale with --side-nav-fit-scale */
.side-nav-header {
  display: flex;
  flex-direction: column;
  gap: calc(0.42rem * var(--side-nav-space-scale));
  flex: 0 0 auto;
}

.side-nav-title {
  display: flex;
  flex-direction: column;
  gap: calc(0.16rem * var(--side-nav-space-scale));
}

.side-nav-title-main {
  font-size: calc(16px * var(--side-nav-fit-scale));
  line-height: 1.14;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  text-wrap: balance;
}

.side-nav-title-year {
  font-size: calc(1.5rem * var(--side-nav-fit-scale));
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--purple-primary);
}

.side-download-link,
.side-menu a {
  font-size: calc(14px * var(--side-nav-fit-scale));
  line-height: 1.24;
}

.side-download-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: calc(12px * var(--side-nav-fit-scale));
  color: var(--purple-primary);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 calc(-1.5rem * var(--side-nav-fit-scale));
  padding: calc(0.34rem * var(--side-nav-space-scale))
    calc(1.5rem * var(--side-nav-fit-scale));
  border-radius: 0;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.side-download-link .download-icon-svg {
  flex-shrink: 0;
  display: block;
  width: calc(22px * var(--side-nav-fit-scale, 1));
  height: calc(22px * var(--side-nav-fit-scale, 1));
  color: var(--purple-primary);
  transition: color 0.2s ease;
}

.side-download-link:hover {
  color: var(--purple-text);
  background: rgba(159, 23, 184, 0.08);
}

.side-download-link:hover .download-icon-svg {
  color: var(--purple-text);
}

.cover-logo {
  max-width: 120px;
  width: auto;
  height: auto;
  display: block;
  position: absolute;
  top: 2rem;
  left: 2rem;
}

.brand-note {
  display: none;
}

.side-menu {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  justify-content: space-between;
  gap: calc(0.08rem * var(--side-nav-space-scale));
  margin-top: 0;
  padding: calc(0.08rem * var(--side-nav-space-scale)) 0;
}

.side-menu a {
  display: block;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 400;
  margin: 0 calc(-1.5rem * var(--side-nav-fit-scale));
  padding: calc(0.34rem * var(--side-nav-space-scale))
    calc(1.5rem * var(--side-nav-fit-scale));
  border-radius: 0;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.side-menu a:hover {
  color: var(--purple-text);
  background: rgba(159, 23, 184, 0.08);
}

.side-menu a.active {
  color: var(--purple-text);
  font-weight: 600;
  background: rgba(159, 23, 184, 0.14);
}

.side-share {
  margin-top: calc(0.16rem * var(--side-nav-space-scale));
  display: block;
  position: relative;
  flex: 0 0 auto;
}

.side-share-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: calc(100% + (3rem * var(--side-nav-fit-scale)));
  padding: calc(0.34rem * var(--side-nav-space-scale))
    calc(1.5rem * var(--side-nav-fit-scale));
  margin: 0 calc(-1.5rem * var(--side-nav-fit-scale));
  border: none;
  background: transparent;
  border-radius: 0;
  box-sizing: border-box;
  cursor: pointer;
  font: inherit;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.side-share-trigger .share-icon-svg {
  flex-shrink: 0;
  color: var(--purple-primary);
  transition: color 0.2s ease;
}

.side-share-trigger .eyebrow {
  transition: color 0.2s ease;
}

.side-share-trigger:hover .eyebrow,
.side-share-trigger:hover .share-icon-svg {
  color: var(--purple-text);
}

.side-share-trigger:hover,
.side-share-trigger:focus-visible {
  background: rgba(159, 23, 184, 0.08);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 15px;
  color: var(--purple-primary);
  font-weight: 800;
}

.share-icon {
  width: auto;
  height: auto;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--purple-primary);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: color 0.2s ease;
  text-transform: uppercase;
}

.share-icon:hover {
  color: var(--purple-text);
}

.share-toast {
  font-size: 11px;
  color: var(--text-body);
  opacity: 0;
  transform: translateY(4px);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
  position: absolute;
  bottom: -1.5rem;
  left: 0;
  white-space: nowrap;
}

.share-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.main {
  flex: 1;
  min-width: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  position: relative;
}

/* Download report button (top-right) */
.download-report-btn {
  position: fixed;
  top: 1.5rem;
  right: 2rem;
  z-index: 1001;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.78rem;
  border-radius: 8px;
  border: 1px solid rgba(135, 45, 151, 0.35);
  background: rgba(135, 45, 151, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--purple-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.download-report-btn:hover {
  transform: translateY(-1px);
  background: rgba(135, 45, 151, 0.18);
  border-color: rgba(135, 45, 151, 0.55);
}

.download-report-btn:focus-visible {
  outline: 2px solid var(--purple-primary);
  outline-offset: 3px;
}

.download-report-btn.is-fallback {
  border-color: rgba(135, 45, 151, 0.35);
}

/* Page Progress Indicator */
.page-progress {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  transition: opacity 0.4s ease;
}

.page-progress.overlap-hidden {
  opacity: 0;
  pointer-events: none;
}

.progress-bar {
  width: 4px;
  height: 200px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--progress, 11.11%);
  background: var(--purple-primary);
  border-radius: 2px;
  transition: height 0.3s ease;
}

.page-counter {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.6rem 0.6rem;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(135, 45, 151, 0.4);
  line-height: 1.3;
}

.current-page {
  color: var(--purple-primary);
  font-size: 1.05em;
}

.separator {
  display: block;
  width: 1.5rem;
  height: 1px;
  background: var(--text-body);
  opacity: 0.3;
  margin: 0.2rem 0;
  font-size: 0;
}

.total-pages {
  color: var(--text-body);
}

/* Hero section styles removed - using page sections now */

/* Full-page sections */
.page-section {
  min-height: 100dvh;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  position: relative;
}

/* Thin divider line between pages in desktop parent view */
.main > .page-section {
  border-bottom: 1px solid rgba(7, 29, 73, 0.12);
}

.main > .page-section:last-of-type {
  border-bottom: none;
}

/* Page 1-3: fixed canvas + shared scale. Keeps inter-page geometry unchanged on resize. */
.page-section.page-locked {
  padding: 0;
  overflow: hidden;
  justify-content: flex-start;
  align-items: center;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
  height: calc(var(--locked-page-height) * var(--locked-page-scale));
  min-width: calc(var(--locked-page-width) * var(--locked-page-scale));
  min-height: calc(var(--locked-page-height) * var(--locked-page-scale));
  max-width: calc(var(--locked-page-width) * var(--locked-page-scale));
  max-height: calc(var(--locked-page-height) * var(--locked-page-scale));
  box-sizing: border-box;
  margin-left: auto;
  margin-right: auto;
}

/* Page 3 Year-of-Growth: 宽度固定 1024px，高度根据内容自适应 */
#mission.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}
#mission.page-section.page-locked .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}
#mission.page-section.page-locked .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
  overflow: visible;
}
#mission.page-section.page-locked .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 3 Year-of-Growth: 宽度固定 1024px，高度根据内容自适应 */
#year-of-growth.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
}
#year-of-growth.page-section.page-locked .page-locked-canvas {
  height: auto;
  min-height: auto;
}
#year-of-growth.page-section.page-locked .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
  overflow: visible;
}
#year-of-growth.page-section.page-locked .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 1 Cover: use real iframe content height from child page, no fixed clipping */
#cover.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}
#cover.page-section.page-locked .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}
#cover.page-section.page-locked .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
  overflow: visible;
}
#cover.page-section.page-locked .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 4: Reach & Engagement - auto height based on content */
#reach-engagement.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}
.page-section.page-locked #reach-engagement .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #reach-engagement .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #reach-engagement .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 5: Visibility - auto height based on content, left-aligned like other pages */
#visibility.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #visibility .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #visibility .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #visibility .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 6: Sector & Knowledge - auto height based on content, avoids iframe clipping */
#sector-knowledge.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #sector-knowledge .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #sector-knowledge .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #sector-knowledge .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  border: none;
  margin: 0;
  padding: 0;
  display: block;
}

/* Page 7: Procurement & Adoption - auto height based on content */
#procurement-adoption.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #procurement-adoption .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #procurement-adoption .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #procurement-adoption .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* Page 8: Future Talent - auto height based on content */
#future-talent.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #future-talent .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #future-talent .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #future-talent .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* Page 9: Structural Barriers - auto height based on content */
#structural-barriers.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #structural-barriers .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #structural-barriers .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #structural-barriers .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* Page 10: Theory of Change - fixed ratio, width-aligned embed */
#theory-change.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 1.5rem 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

#theory-change.page-section.page-white {
  background: var(--white);
}

#theory-change.page-section.page-locked .page-locked-canvas {
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

#theory-change.page-section.page-locked .page-locked-content {
  width: 100%;
  height: auto;
  aspect-ratio: 1280 / 790;
  position: relative;
  overflow: hidden;
  display: block;
  padding: 0;
  margin: 0;
}

#theory-change.page-section.page-locked .page-iframe-content {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* Page 11: Vision 2030 Diagram - auto height based on content */
#vision-2030-diagram.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

.page-section.page-locked #vision-2030-diagram .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #vision-2030-diagram .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
}

.page-section.page-locked #vision-2030-diagram .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* Page 12: Sector Catalyst - auto height based on content */
#sector-catalyst.page-section.page-locked {
  height: auto;
  min-height: auto;
  max-height: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
  align-items: center;
  justify-content: flex-start;
  width: calc(var(--locked-page-width) * var(--locked-page-scale));
}

#sector-catalyst.page-section.page-locked .page-locked-canvas {
  height: auto;
  min-height: auto;
  width: 100%;
  display: block;
  padding: 0;
  margin: 0;
}

#sector-catalyst.page-section.page-locked .page-locked-content {
  width: 100%;
  height: auto;
  display: block;
  padding: 0;
  margin: 0;
  overflow: visible;
}

#sector-catalyst.page-section.page-locked .page-iframe-content {
  width: 100%;
  height: auto;
  min-height: auto;
  display: block;
  border: none;
  margin: 0;
  padding: 0;
}

/* 双画布页面（第三页）：高度为 2 个单元（如 2 x 768px） */
.page-section.page-locked.page-double-canvas {
  height: calc(var(--locked-page-height) * 2 * var(--locked-page-scale));
  min-height: calc(var(--locked-page-height) * 2 * var(--locked-page-scale));
  max-height: calc(var(--locked-page-height) * 2 * var(--locked-page-scale));
}

.page-section.page-locked .page-locked-canvas {
  width: 100%;
  height: 100%;
  flex: 0 0 auto;
  box-sizing: border-box;
  overflow: hidden;
  position: relative;
}
/* Page 3 的 canvas 高度自适应 */
.page-section.page-locked#year-of-growth .page-locked-canvas {
  height: auto;
  min-height: auto;
}

.page-section.page-locked.page-double-canvas .page-locked-canvas {
  height: calc(var(--locked-page-height) * 2);
}

.page-section.page-locked .page-locked-content {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.page-section.page-locked .page-iframe-content {
  width: 100%;
  height: 100%;
  border: none;
}

/* Cover section: height from content, avoid large empty space below */
#cover.page-section:not(.page-locked) {
  min-height: 0;
  justify-content: flex-start;
}

.page-white {
  background: var(--white);
  color: var(--text-dark);
}

/* Page 4: section background matches other pages */
#reach-engagement.page-section.page-white {
  background: #ffffff;
}

.page-teal {
  background: var(--blue-teal);
  color: var(--white);
}

.page-purple {
  background: var(--purple-primary);
  color: var(--white);
}

.page-light-purple {
  background: var(--purple-light-bg);
  color: var(--text-dark);
}

/* Mission page: visual separation from Cover (page 1) */
.page-mission-wrap {
  background: var(--white);
}

/* Mission section: inline content (no iframe) - 使用锁定画布 1920x1200 */
#mission.page-section {
  padding: 0;
  overflow: hidden;
}
#mission .mission-page {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: stretch;
  /* Align with cover/page-6 horizontal padding */
  padding: 3rem 3rem;
  box-sizing: border-box;
}
#mission .mission-layout {
  display: flex;
  width: 100%;
  gap: 2rem;
  align-items: stretch;
}
#mission .mission-block,
#mission .contents-block {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(0, 0, 0, 0.18);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  background: var(--white);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
#mission .mission-block:hover,
#mission .contents-block:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
#mission .mission-heading,
#mission .contents-heading {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  color: var(--text-dark);
}
#mission .mission-text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-body);
  text-align: left;
  flex: 1;
}
#mission .contents-list {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}
#mission .contents-list li { margin: 0.5rem 0; }
#mission .contents-list a {
  color: var(--text-body);
  text-decoration: none;
  font-weight: 400;
  transition: color 0.2s ease;
}
#mission .contents-list a:hover { color: var(--purple-primary); }

/* Year of Growth section: inline content (no iframe) - 双画布 1920x2400 */
#year-of-growth.page-section {
  padding: 0;
  overflow: hidden;
  background: var(--white);
}
#year-of-growth .year-page {
  width: 100%;
  height: auto;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  /* Align with cover/page-6 horizontal padding */
  padding: 3rem 3rem;
  box-sizing: border-box;
}
#year-of-growth .year-header {
  text-align: left;
  margin-bottom: 1.5rem;
}
#year-of-growth .year-title {
  font-size: 1.85rem;
  font-weight: 500;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
#year-of-growth .year-intro {
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 400;
  color: var(--text-body);
  margin: 0 0 1rem;
}
#year-of-growth .year-intro p { margin: 0 0 1rem; }
#year-of-growth .year-intro p:last-child { margin-bottom: 0; }
#year-of-growth .year-diagram-wrap {
  width: 100%;
  height: auto;
  min-height: 400px;
  aspect-ratio: 16 / 9;
  border: 1px solid transparent;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  margin: 1rem 0 0;
  flex-shrink: 0;
}
#year-of-growth .year-diagram-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  border: none;
  overflow: hidden;
}

/* Reach & Engagement section: two-column layout (left text, right diagram) */
#reach-engagement.page-section {
  padding: 0;
  overflow: hidden;
  background: #ffffff;
}
#reach-engagement .reach-page {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  /* Align with cover/page-6 horizontal padding */
  padding: 3rem 3rem;
  box-sizing: border-box;
  position: relative;
}
#reach-engagement .reach-layout {
  display: flex;
  width: 100%;
  gap: 2rem;
  align-items: stretch;
  flex: 1;
}
#reach-engagement .reach-left {
  flex: 0 0 50%;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-right: 1rem;
}
#reach-engagement .reach-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
  line-height: 1.2;
}
#reach-engagement .reach-intro {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-body);
  margin: 0 0 2rem;
}
#reach-engagement .reach-intro p {
  margin: 0 0 1rem;
}
#reach-engagement .reach-intro p:last-child {
  margin-bottom: 0;
}
#reach-engagement .reach-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1rem;
}
#reach-engagement .reach-stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
#reach-engagement .reach-stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--purple-primary);
  line-height: 1.2;
}
#reach-engagement .reach-stat-label {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-body);
}
#reach-engagement .reach-right {
  flex: 0 0 50%;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 0;
}
#reach-engagement .reach-diagram-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  background: #ffffff;
  border-radius: 8px;
  flex: 1 1 auto;
  min-height: 0;
}
#reach-engagement .reach-diagram-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dark);
  margin: 0;
}
#reach-engagement .reach-diagram-subtitle {
  font-size: 0.75rem;
  color: var(--text-body);
  opacity: 0.7;
  margin: 0;
}
#reach-engagement .reach-diagram-container {
  width: 100%;
  margin-top: 0.5rem;
  position: relative;
  overflow: hidden;
  background: #ffffff;
  flex: 1 1 auto;
  min-height: 0;
}
#reach-engagement .reach-diagram-iframe {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  border: none;
  background: transparent;
}
#reach-engagement .page-number {
  position: absolute;
  bottom: 1rem;
  left: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-body);
  opacity: 0.5;
}

.page-iframe {
  padding: 0;
  overflow: hidden;
  height: 100dvh;
  min-height: 100dvh;
  max-height: 100dvh;
}

.page-iframe-content {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.page-content {
  max-width: 1000px;
  width: 100%;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 2rem;
  opacity: 0.9;
}

/* Cover Page Specifics – two-column layout (left text, right diagram)
 * 调整右侧 diagram 位置（本文件 main.css 内）：
 *   --cover-top:              左侧与右侧共同的顶部留白，改小=整体上移，改大=整体下移
 *   --cover-diagram-offset-y: 仅 diagram 的上下微调，负值=图上移，正值=图下移，例如 -1rem 或 0.5rem
 */
#cover,
.cover-page {
  --cover-top: 2.5rem;
  --cover-diagram-offset-y: 0;
  padding: 0;
  justify-content: stretch;
  align-items: stretch;
  background: var(--white);
}

.cover-page .page-content {
  max-width: none;
  display: none;
}

.cover-layout {
  display: flex;
  width: 100%;
  height: 100%;
  min-height: 0;
  min-width: 0;
  gap: 0;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

.cover-left {
  flex: 0 0 50%;
  max-width: 50%;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  /* Increase left padding so title sits slightly further from content edge */
  padding: var(--cover-top, 2.5rem) 3rem 2rem 3rem;
  text-align: left;
  box-sizing: border-box;
  height: 100%;
  overflow: hidden;
}

.cover-left-body {
  /* 用于与右侧 diagram 高度对齐，JS 会读取此高度并赋给 .cover-diagram-wrap */
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.cover-heading {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--purple-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.cover-url {
  font-size: 0.95rem;
  font-weight: 400;
  color: #000;
  margin: 0 0 2.25rem;
}

.cover-report-title {
  margin: 0 0 1.75rem;
  color: #000;
}

.cover-report-title p {
  font-size: 1.1rem;
  font-weight: 400;
  color: #000;
  margin: 0 0 0.25rem;
  line-height: 1.4;
}

.cover-tagline {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--purple-primary);
  line-height: 1.35;
  margin: 0 0 1.5rem;
  max-width: 20em;
}

.cover-date {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-body);
  margin: 0 0 0;
  padding-top: 0.5rem;
}

.cover-footer {
  display: flex;
  align-items: flex-end;
  gap: 3rem;
  margin-top: 1.5rem;
  padding-top: 0;
}

.cover-footer-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-body);
  margin-bottom: 0.5rem;
}

.cover-mhclg {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cover-mhclg-text {
  font-size: 0.75rem;
  color: var(--text-dark);
  line-height: 1.3;
  max-width: 12em;
}

.cover-mhclg-logo {
  max-height: 75px;
  width: auto;
  height: auto;
  display: block;
}

.cover-taskforce-logo {
  max-width: 140px;
  height: auto;
  display: block;
}

.cover-right {
  flex: 0 0 50%;
  max-width: 50%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  position: relative;
  padding-top: var(--cover-top, 2.5rem);
  padding-right: 2rem;
  box-sizing: border-box;
  height: 100%;
}

.cover-diagram-wrap {
  width: 100%;
  max-width: 100%;
  min-height: 320px;
  margin-top: var(--cover-diagram-offset-y, 0);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-shrink: 0;
}

.cover-diagram-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  overflow: hidden;
}

/* 主站 index 的 cover：使用锁定画布 1920x1200 */
#cover {
  background: var(--white);
  overflow: hidden;
}

.cover-right {
  flex: 0 0 50%;
  max-width: 50%;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-end;
  padding: 2rem 2rem 2rem 0;
  box-sizing: border-box;
  height: 100%;
  overflow: hidden;
}

.positioning-statement {
  margin: 3rem auto 1.5rem; /* Added bottom margin */
  padding: 0;
  max-width: 800px;
  background: transparent;
  border-left: none;
  text-align: center; /* Centered text */
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  font-size: 1.3rem; /* Increased font size */
  font-weight: 500; /* Added weight */
  line-height: 1.5;
  color: var(--text-dark);
}

.page-text {
  font-size: 1.125rem;
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.95;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.stat-card {
  background: transparent;
  padding: 2.5rem 2rem;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.18);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.page-white .stat-card {
  background: transparent;
  border-color: rgba(0, 0, 0, 0.18);
}

.page-light-purple .stat-card {
  background: transparent;
  border-color: rgba(0, 0, 0, 0.18);
}

.page-teal .stat-card,
.page-purple .stat-card {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  opacity: 0.9;
}

.stat-text {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.85;
}

/* Scroll Indicators */
.scroll-indicator {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  animation: bounce 2s infinite;
}

.scroll-indicator-bottom {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  margin-top: 0;
  width: 100%;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
  padding: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.scroll-indicator-light {
  margin-top: 2rem;
  opacity: 0.7;
}

.scroll-text {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dark);
  opacity: 0.8;
}

.page-white .scroll-text {
  color: var(--text-dark);
}

#cover .scroll-text {
  color: var(--white) !important;
  opacity: 1 !important;
}

#cover .scroll-indicator-bottom {
  gap: 0rem;
}

.page-teal .scroll-text,
.page-purple .scroll-text {
  color: var(--white);
}

.scroll-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
  opacity: 0.7;
  animation: scrollDown 2s infinite;
}

#cover .scroll-arrow {
  color: var(--white) !important;
  opacity: 1 !important;
}

.page-teal .scroll-arrow,
.page-purple .scroll-arrow {
  color: var(--white);
}

.scroll-arrow svg {
  width: 24px;
  height: 24px;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@keyframes scrollDown {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(8px);
    opacity: 1;
  }
}

/* Remove modal styles - not needed */

.video-container {
  margin-top: 3rem;
  text-align: center;
}

.video-btn {
  padding: 1rem 2rem;
  border: 2px solid var(--white);
  border-radius: 4px;
  background: transparent;
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.3s ease,
    color 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
}

.video-btn:hover {
  background: var(--white);
  color: var(--purple-primary);
}

.play-icon {
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--white);
  color: var(--purple-primary);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body.modal-open {
  overflow: hidden;
}

@media (max-width: 1100px) {
  .side-nav {
    width: var(--layout-sidebar-width);
  }

  .page-section {
    padding: 3rem 2rem;
  }

  .page-title {
    font-size: 2.75rem;
  }

  .page-subtitle {
    font-size: 1.25rem;
  }
}

@media (max-width: 900px) {
  .cover-layout {
    flex-direction: column;
  }

  .cover-left,
  .cover-right {
    flex: 1 1 auto;
    max-width: 100%;
  }

  .cover-left {
    padding: 2rem 1.5rem;
  }

  .cover-right {
    min-height: 50vh;
  }

  .cover-diagram-wrap {
    min-height: 45vh;
  }

  .cover-heading {
    font-size: 2rem;
  }

  .cover-tagline {
    font-size: 1.25rem;
  }

  #mission .mission-page {
    padding: 1.5rem 1rem 1rem;
  }
  #mission .mission-layout {
    flex-direction: column;
  }
  #mission .mission-block,
  #mission .contents-block {
    padding: 2rem 1.5rem;
  }
  #mission .mission-heading,
  #mission .contents-heading {
    font-size: 1.5rem;
  }

  #year-of-growth .year-page {
    padding: 1.5rem 1rem 1rem;
  }
  #year-of-growth .year-diagram-wrap {
    max-height: 50vh;
    aspect-ratio: 2.6 / 1;
  }
  #year-of-growth .year-title {
    font-size: 1.5rem;
  }
  #year-of-growth .year-intro {
    font-size: 0.95rem;
  }

  #reach-engagement .reach-page {
    padding: 1.5rem 1rem 1rem;
  }
  #reach-engagement .reach-layout {
    flex-direction: column;
  }
  #reach-engagement .reach-left,
  #reach-engagement .reach-right {
    flex: 1 1 auto;
    max-width: 100%;
  }
  #reach-engagement .reach-left {
    padding-right: 0;
  }
  #reach-engagement .reach-title {
    font-size: 1.5rem;
  }
  #reach-engagement .reach-intro {
    font-size: 0.95rem;
  }
  #reach-engagement .reach-stat-number {
    font-size: 1.25rem;
  }
  #reach-engagement .reach-diagram-iframe {
    height: 560px;
    min-height: 400px;
  }
  #reach-engagement .page-number {
    left: 1rem;
  }

  .layout {
    display: block;
  }

  .side-nav {
    position: relative;
    width: 100%;
    height: auto;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    flex-wrap: wrap;
  }

  .side-menu {
    flex: 0 1 auto;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.5rem;
    margin-top: 0;
    padding: 0;
  }

  .side-menu a {
    padding: 0.5rem 1rem;
  }

  .side-share {
    margin-top: 0;
    margin-left: auto;
  }

  .main {
    margin-left: 0;
    width: 100%;
  }

  .page-progress {
    right: 1rem;
  }

  .download-report-btn {
    right: 1rem;
    top: 0.9rem;
  }

  .progress-bar {
    height: 150px;
  }

  .page-section {
    padding: 2rem 1.5rem;
  }

  .page-iframe {
    padding: 0;
  }

  .page-iframe-content {
    height: 100%;
  }

  .page-title {
    font-size: 2rem;
  }

  .page-subtitle {
    font-size: 1.125rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .cover-page {
    padding: 1.5rem 0 1.5rem 1rem;
  }

  .cover-left {
    padding: 1.5rem 1rem;
  }

  .cover-footer {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .page-section {
    padding: 2rem 1.25rem;
    min-height: 100dvh;
  }

  .page-iframe {
    padding: 0;
  }

  .page-title {
    font-size: 1.75rem;
  }

  .page-subtitle {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }

  .page-text {
    font-size: 1rem;
  }

  .stat-card {
    padding: 2rem 1.5rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  .stat-label {
    font-size: 1rem;
  }

  .stat-text {
    font-size: 0.9375rem;
  }

  .video-btn {
    font-size: 0.875rem;
    padding: 0.875rem 1.25rem;
  }

  .play-icon {
    font-size: 0.875rem;
    width: 28px;
    height: 28px;
  }

  .brand-year {
    font-size: 2.5rem;
  }

  .page-progress {
    display: none;
  }

  .scroll-indicator {
    margin-top: 2rem;
  }

  .scroll-indicator-bottom {
    bottom: 1rem;
  }

  .scroll-text {
    font-size: 0.75rem;
  }
}

/* Keep unit-locked pages in fixed 1920x1200 composition on narrow viewports.
   Layout should scale as one canvas, not reflow by responsive breakpoints. */
.page-section.page-locked.cover-page {
  padding: 0 !important;
}

@media (max-width: 900px) {
  .page-section.page-locked .cover-layout {
    flex-direction: row;
  }

  .page-section.page-locked .cover-left,
  .page-section.page-locked .cover-right {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .page-section.page-locked .cover-left {
    padding: var(--cover-top, 3rem) 3rem 3rem 2rem;
  }

  .page-section.page-locked .cover-heading {
    font-size: 2.5rem;
  }

  .page-section.page-locked .cover-tagline {
    font-size: 1.5rem;
  }

  .page-section.page-locked .cover-right {
    min-height: 0;
  }

  .page-section.page-locked .cover-diagram-wrap {
    min-height: 320px;
  }

  .page-section.page-locked#mission .mission-layout,
  .page-section.page-locked#reach-engagement .reach-layout {
    flex-direction: row;
  }

  .page-section.page-locked#mission .mission-page,
  .page-section.page-locked#year-of-growth .year-page,
  .page-section.page-locked#reach-engagement .reach-page {
    padding: 3rem 2rem;
  }

  .page-section.page-locked#mission .mission-heading,
  .page-section.page-locked#mission .contents-heading,
  .page-section.page-locked#year-of-growth .year-title,
  .page-section.page-locked#reach-engagement .reach-title {
    font-size: 1.85rem;
  }

  .page-section.page-locked#year-of-growth .year-intro,
  .page-section.page-locked#reach-engagement .reach-intro {
    font-size: 1rem;
  }

  .page-section.page-locked#mission .mission-block,
  .page-section.page-locked#mission .contents-block,
  .page-section.page-locked#reach-engagement .reach-left,
  .page-section.page-locked#reach-engagement .reach-right {
    max-width: 50%;
  }

  .page-section.page-locked#year-of-growth .year-diagram-wrap {
    aspect-ratio: auto;
    max-height: none;
  }

  .page-section.page-locked#reach-engagement .reach-diagram-iframe {
    height: 100%;
    min-height: 0;
  }
}

/* Desktop lock: scale content to fill the viewport. Heights use 100dvh so the
   layout always fills the full browser window with no background gaps.
   Sidebar is physically resized to match 100dvh after its CSS transform. */
@media (min-width: 901px) {
  .layout-wrap,
  .layout,
  .main {
    height: 100dvh !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
  }

  .main {
    overflow-y: hidden !important;
    scroll-snap-type: none !important;
  }

  .side-nav {
    width: var(--layout-sidebar-base-width) !important;
    min-width: var(--layout-sidebar-base-width) !important;
    max-width: var(--layout-sidebar-base-width) !important;
    /* Physical height = 100dvh / scale → after CSS transform it renders as 100dvh */
    height: calc(100dvh / var(--locked-page-scale)) !important;
    max-height: calc(100dvh / var(--locked-page-scale)) !important;
    transform: scale(var(--locked-page-scale));
    transform-origin: top left;
    margin-right: calc(var(--layout-sidebar-width) - var(--layout-sidebar-base-width));
    /* margin-bottom compensates so the flex row accounts for the visually-scaled height */
    margin-bottom: calc(100dvh - 100dvh / var(--locked-page-scale));
    overflow-x: hidden !important;
    overflow-y: auto !important;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .side-nav::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
  }

  .page-section.page-locked {
    width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    min-width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    max-width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    /* Each page section fills the full viewport height; canvas sits at the top */
    height: 100dvh !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
    padding: 0 !important;
    overflow: hidden !important;
  }

  .page-section.page-locked.page-double-canvas {
    width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    min-width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    max-width: calc(var(--locked-page-width) * var(--locked-page-scale)) !important;
    height: 200dvh !important;
    min-height: 200dvh !important;
    max-height: 200dvh !important;
  }

  .page-section.page-locked .page-locked-canvas {
    width: var(--locked-page-width) !important;
    min-width: var(--locked-page-width) !important;
    max-width: var(--locked-page-width) !important;
    height: var(--locked-page-height) !important;
    min-height: var(--locked-page-height) !important;
    max-height: var(--locked-page-height) !important;
    /* Vertically centre the canvas in the 100dvh section using transform only.
       translateY is used (not margin-top) so layout flow is unaffected and
       page-specific margin:0 overrides cannot break the centering. */
    transform: translateY(calc((100dvh - var(--locked-page-height) * var(--locked-page-scale)) / 2)) scale(var(--locked-page-scale));
    transform-origin: top left;
  }

  .page-section.page-locked.page-double-canvas .page-locked-canvas {
    height: calc(var(--locked-page-height) * 2) !important;
    min-height: calc(var(--locked-page-height) * 2) !important;
    max-height: calc(var(--locked-page-height) * 2) !important;
  }

  .page-section.page-locked .page-locked-content,
  .page-section.page-locked .page-iframe-content {
    width: 100% !important;
    height: 100% !important;
    min-height: 0 !important;
    max-height: 100% !important;
  }
}

/* Page transitions are handled entirely via inline styles in main.js
   (custom smooth scroll + directional fade) */

/* Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Site Footer - Copyright */
.site-footer {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 1001;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.site-footer p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-body);
  font-weight: 400;
  opacity: 0.8;
}